CN115351728B - Clamping rod device for steel cord testing - Google Patents
Clamping rod device for steel cord testingInfo
- Publication number
- CN115351728B CN115351728B CN202211031680.4A CN202211031680A CN115351728B CN 115351728 B CN115351728 B CN 115351728B CN 202211031680 A CN202211031680 A CN 202211031680A CN 115351728 B CN115351728 B CN 115351728B
- Authority
- CN
- China
- Prior art keywords
- pin
- rod
- connecting rod
- steel cord
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention relates to the technical field of steel cord processing, in particular to a clamp press rod device for detecting a steel cord, which comprises a press rod, a connecting rod, a positioning pin and a spring, wherein the positioning pin comprises a pin rod arranged along the axial direction of the press rod and a limiting pin vertically fixed on the outer wall of the second end of the pin rod, the limiting pin can move in a key slot along the axial direction of the press rod, and the spacing between the limiting pin and the press rod can be adjusted along the axial direction of the press rod or one side of the connecting rod so as to adjust the pre-compression force between the springs, the press rod and the connecting rod can play a role of elastic buffering through the springs, the service life of the device is prolonged, the stability of the detection device is enhanced, the spacing between the press rod and the connecting rod can be changed through the positioning pin, the effect of changing the pre-compression force between the springs and the press rod is achieved, so that the steel cord with different tension is adapted, frequent disassembly is not needed, and the maintenance cost is reduced.
Description
Technical Field
The invention relates to the technical field of steel cord processing, in particular to a clamp compression bar device for steel cord detection.
Background
The steel cord is made of high-quality high-carbon steel, the surface of the steel cord is plated with brass, and the steel cord has special-purpose thin specification steel strands or ropes, the steel cord is mainly used for car tires, truck tires, engineering machinery vehicle tires or other rubber product framework materials, the twisting loosening degree of the steel cord is an important index for judging the quality of the cord, the quality of the produced cord product is ensured to meet the requirements of users through detection of a loosening detector in the production process, the working principle is that a certain pressure is applied to the steel cord through a clamp, and the steel cord is rubbed with the clamp through one end distance on the clamp to judge whether the twisting loosening degree of the cord exists or not.
The compression bar device tension that current loose detector anchor clamps used is fixed, and the detection to different specification steel cord requires tension different, consequently the bearing capacity of depression bar need be changed according to the tension of steel cord, leads to the specification of depression bar also different, so, frequent change makes the maintenance change volume of depression bar can increase, maintenance personnel work load and cost of maintenance also can increase.
Disclosure of Invention
The invention provides a clamp compression bar device for detecting a steel cord, which comprises the following components:
the first end of the pressing rod is provided with a key slot, and the second end of the pressing rod is provided with a mounting groove for mounting the clamp;
The first end of the connecting rod is fixedly connected with the detection equipment;
the first end of the positioning pin is fixedly connected to the second end of the connecting rod, and the second end of the positioning pin is movably installed in the key groove;
A spring is arranged between the pressure lever and the connecting rod, and the spring is sleeved on the outer side of the positioning pin, so that variable elastic pre-pressure is arranged between the pressure lever and the connecting rod;
The locating pin comprises a pin rod arranged along the axial direction of the pressure rod and a locating pin vertically fixed on the outer wall of the second end of the pin rod, the locating pin can move in the key groove along the axial direction of the pressure rod, and the locating pin can move towards one side of the pressure rod or the connecting rod along the axial direction so as to adjust the pre-pressure between the spring and the pressure rod.
Preferably, a screw hole for installing a bolt is formed in the side surface of the key groove along the circumferential direction, a detachable key block is installed on one side, close to the connecting rod, in the key groove, and the key block is fixed in the key groove through the bolt.
Preferably, the key block has a length less than half the length of the key slot.
Preferably, a limiting groove is formed in one side, attached to the limiting pin, of the key block, so that the limiting pin is clamped and installed in the limiting groove.
Preferably, the first end of the limiting pin is fixedly connected with the connecting rod.
Preferably, the first end of the limiting pin is in threaded connection with the connecting rod and is used for adjusting the pre-pressure between the spring and the compression bar.
Preferably, the first end of the pin rod is fixedly provided with a screw rod, and the pin rod and the connecting rod are fixedly connected through the screw rod in a threaded manner.
Preferably, the connecting rod is of a hollow structure, a positioning plate is fixedly arranged at one side, close to the positioning pin, of the inside of the connecting rod, and the screw penetrates through the positioning plate and is fixedly connected with the positioning plate through a nut.
Preferably, the compression bar is provided with a hollow structure, so that the pin rod can move in the axial direction inside the compression bar.
Preferably, the compression stroke of the spring is greater than the length of the keyway.
Compared with the prior art, the invention has the advantages that:
The invention has the advantages that the pressure lever device consisting of the pressure lever, the connecting rod, the positioning pin and the spring is arranged, the device is simple in structure, low in cost and convenient to detach and maintain, the elastic buffering effect can be achieved between the pressure lever and the connecting rod through the spring, the service life of the device is prolonged, the stability of the detection equipment is enhanced, the gap between the pressure lever and the connecting rod can be changed through the positioning pin, the effect of changing the pre-pressure between the spring and the pressure lever is achieved, the steel cord with different tension is adapted, frequent detachment is not needed, and the maintenance cost is reduced.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic front view of a clamp lever apparatus for detecting a steel cord according to an embodiment of the present invention;
FIG. 2 is a schematic side view of a clamp lever apparatus for detecting a steel cord according to an embodiment of the present invention;
FIG. 3a is a schematic view of a partially enlarged structure of an embodiment of a mounting key block of a clamp lever apparatus for detecting a steel cord according to an embodiment of the present invention;
FIG. 3b is a schematic view of the structure of FIG. 3a after installation of a key block of a first length;
FIG. 3c is a schematic view of the structure of FIG. 3a after installation of a second length key block;
FIG. 4a is a schematic view showing a partially enlarged structure of an embodiment of pin length adjustment in a clamp press lever apparatus for detecting a steel cord according to an embodiment of the present invention;
FIG. 4b is a schematic view of the structure of the clamp lever apparatus of FIG. 4a in a pre-stressed state with the pin in a first length;
FIG. 4c is a schematic view of the clamp lever apparatus of FIG. 4a in a pre-stressed state with the pin in a second length.
Detailed Description
For a better understanding of the technical content of the present invention, specific examples are set forth below, along with the accompanying drawings.
The existing compression bar device is a fixed-length bar, the bars with different lengths are required to be replaced according to the tension difference of the steel cords, the maintenance replacement amount of the corresponding compression bar can be increased, the workload of maintenance personnel and the maintenance cost can be increased, and the fixed-length bar is relatively easy to damage due to the fact that the tension of the steel cords has no buffer structure, so that the service life of the compression bar is short.
Referring to fig. 1 and 2, the invention provides a clamp press bar device for detecting a steel cord, which comprises a press bar 1, a connecting rod 3 and a positioning pin 2.
The first end of the compression bar 1 is provided with a key groove 101, the second end of the compression bar is provided with a mounting groove 102 for mounting a clamp, when the compression bar is used, the clamp is mounted in the mounting groove 102 and is in contact with a steel cord, the first end of the connecting rod 3 is fixedly connected with a detection device, the first end of the positioning pin 2 is fixedly connected to the second end of the connecting rod 3, and the second end of the positioning pin is movably mounted in the key groove 101, so that the positioning pin 2 can have a certain axial movement space in the key groove 101.
In order to make the compression bar 1 and the connecting rod 3 have certain elastic buffering, reduce the damage caused by rigid impact, be equipped with spring 4 between compression bar 1 and the connecting rod 3, spring 4 suit is in the outside of locating pin 2, makes compression bar 1 and connecting rod 3 have variable elasticity precompression.
Further, the positioning pin 2 comprises a pin rod 21 arranged along the axial direction of the compression bar 1 and a limiting pin 22 vertically fixed on the outer wall of the second end of the pin rod 21, wherein the limiting pin 22 is arranged as a symmetrical circular cylinder protruding out of the surface of the pin rod 21, and the limiting pin 22 can move in the key groove 101 along the axial direction of the compression bar 1.
In a specific embodiment, the limiting pin 22 can be moved to one side of the compression bar 1 or the connecting rod 3 according to the tension requirement of the steel cord, so as to adjust the compression amount of the spring 4 between the compression bar 1 and the connecting rod 3, thereby changing the elastic pre-compression force between the spring 4 and the compression bar 1 to adapt to the tension requirement of different steel cords.
So, when the steel cord type number was changed, then can adjust the precompression between spring 4 and the depression bar 1 according to the tension demand of steel cord, under the condition that does not need the whole depression bar device of changing, adapt to the demand of different model steel cord, reduce the work load of changing, the depression bar device also has certain elasticity buffering simultaneously, can avoid the damage that rigid impact caused, also can reduce maintenance replacement cost.
In an alternative embodiment, the length of the positioning pin 2 extending into the compression bar 1 (mode 1) or the distance of the positioning pin 2 extending into the connecting rod 3 (mode 2) can be adjusted for the adjustment of the elastic pre-compression force of the spring 4.
Spring elastic precompression adjustment mode 1
Taking the mode 1 as an example, by further extending the positioning pin 2 into the compression bar 1, the pre-compression force of the spring 4 is increased, specifically, since the positioning pin 2 protrudes out of the outer wall of the compression bar 1, pinching the positioning pin 2 moves the positioning pin 2 toward the compression bar 1, and pressing the positioning pin 2 into the compression bar 1 for a certain distance, so that the spring 4 is compressed, and at this time, the pre-compression force of the spring 4 is increased.
As shown in connection with fig. 3a-3c, in order to bring the compressed spring 4 to a predetermined compression, it is necessary to position the positioning pin 2.
Optionally, a detachable key block 5 is installed in the key groove 101 at one side close to the connecting rod 3, the key block 5 is fixed in the key groove 101 through a bolt, when the key block 5 is positioned in the key groove 101, the left side of the key block is abutted with the end face of the limiting pin 22, and the right side of the key block is abutted with the inner wall of the key groove 101, so that the limiting pin 22 cannot move rightwards due to the elasticity of the spring 4.
Specifically, when the pre-pressure between the spring 4 and the compression bar 1 needs to be adjusted, the key block 5 can be installed in the key groove 101, the screw hole 103 for installing a bolt is formed in the side surface of the key groove 101 along the circumferential direction, the key block 5 is arranged into an arc-shaped sheet, the upper end and the lower end of the key block are provided with convex arc strips with the screw holes, the arc strips cover the screw hole 103, and the holes correspond to the holes.
Thus, according to the pre-compression amount required by the spring 4, a key block 5 with a proper length is selected, the positioning pin 2 is pressed to enable the compression rod 1 to move to compress the spring 4, the limiting pin 22 is located at the left limiting position in the key groove 101, then the key block 5 is clamped at the right end in the key groove 101 and is fixed in a screw hole 103 at the side edge of the key groove 101 through a screw, then the pressing pressure is released, so that the compression rod 1 naturally rebounds under the action of the spring 4, and at the moment, the pre-compression force of the spring 4 after rebound is increased due to the limiting effect of the key block 5.
Further, according to different types of steel cords, the pre-compression force required for the spring 4 is different, and the key blocks 5 with different lengths are replaced, so that the effect of changing the pre-compression force between the spring 4 and the compression bar 1 is achieved, and the steel cords with different tensions are adapted.
Specifically, as shown in fig. 3a, the positioning pin 2 is in an initial position, the pre-compression force of the spring 4 is smaller, and the positioning pin is suitable for steel cords with small size and diameter, as shown in fig. 3b, the pre-compression force of the spring 4 is larger than that of the steel cords with larger size and diameter when the key block rear positioning pin 2 with the first length is installed in the key slot 101 and is suitable for steel cords with larger size and diameter when the pre-compression force of the spring 4 is larger than that of the steel cords with larger size and diameter when the key block rear positioning pin 2 with the second length is installed in the key slot 101 and is suitable for steel cords with smaller size and diameter when the pre-compression force of the spring 4 is larger than that of the steel cords with larger size and diameter when the key block rear positioning pin 2 with the second length is installed in the key slot 101 and is installed in the key slot 101.
Thus, as shown in connection with figures 3a-3c, by stepwise adjusting the length of the key block 5, the distance the locating pin 2 extends into the compression bar 1 is increased stepwise, whereby the larger the pre-compression of the spring 4, the more suitable the size and diameter of the steel cord.
In this embodiment of the adjustment mode, the length of the key block 5 is less than half of the length of the key groove 101, and a limit groove is formed on the side, where the key block 5 is attached to the limit pin 22, so that the limit pin 22 is engaged and mounted in the limit groove.
Further, the first end of the limiting pin 22 is fixedly connected with the connecting rod 3, so that the spring 4 can be ensured to be in a stable state between the compression rod 1 and the connecting rod 3.
Spring elastic precompression adjustment mode 2
Taking the mode 2 as an example, the pre-compression force of the spring 4 is increased by further extending the positioning pin 2 into the connecting rod 3, specifically, the first end of the positioning pin 2 is screwed on the connecting rod 3 and is used for adjusting the pre-compression force between the spring 4 and the compression rod 1.
Referring to fig. 4a to 4c, a screw 23 is fixedly provided at a first end of the pin 21, and the pin 21 is screw-fixed to the link 3 by the screw 23.
The connecting rod 3 is arranged to be hollow structure, and the inside of connecting rod 3 is close to locating pin 2's one side fixedly provided with locating plate 31, and screw rod 23 runs through locating plate 31 to through nut 32 and locating plate 31 fixed connection. Thereby, the positioning pin 2 is advanced by a distance in the direction of the link 3 by adjusting the position of the nut 32 on the screw 23 by the wrench, so that the spring 4 is compressed, and at this time, the pre-compression force of the spring 4 is increased.
In a specific embodiment, two sets of nuts 32 are arranged, the screw 23 penetrates through the end of the positioning plate 31 and is in threaded connection with the nuts 32, the position of the nuts 32 on the screw 23 is adjusted by utilizing a wrench to adjust the compression amount of the spring 4 between the compression bar 1 and the connecting rod 3, after the nuts 32 are screwed to a proper depth, the pre-compression force of the spring 4 is determined to be in a set range, and the effect of adjusting the pre-compression force of the spring 4 is achieved.
In combination with the illustration, the screw 23 is provided with the nuts 32, and the two sets of nuts 32 are abutted against each other, so that the two sets of nuts 32 can play a role in preventing loosening.
The initial position of the positioning pin 2 and the connecting rod 3 is shown in fig. 4a, the precompression of the spring 4 is smaller, and the steel cord with small size diameter is suitable, the precompression of the spring 4 is larger than that of the steel cord with larger size diameter when the positioning pin 2 and the connecting rod 3 are extended to the first length position, the precompression of the spring 4 is larger than that of the steel cord with larger size diameter when the positioning pin 2 and the connecting rod 3 are extended to the second length position, and the precompression of the spring 4 is larger than that of the steel cord with larger size diameter when the precompression of the spring 4 is larger than that of the steel cord with smaller size diameter when the precompression of the spring 4 is larger than that of the steel cord.
Thus, by gradually adjusting the position of the nut 32 on the screw 23, as shown in connection with fig. 4a-4c, the distance the screw 23 extends into the connecting rod 3 is gradually increased, in which case the larger the pre-compression of the spring 4, the larger the size of the steel cord with a larger diameter is gradually adapted.
In an alternative embodiment, the compression bar 1 is provided with a hollow structure, so that the pin rod 21 can move in the axial direction inside the compression bar 1, the compression bar 1 can have a certain moving space when being impacted by the tension of the steel cord, and the compression bar is subjected to the reaction force of the spring 4 when moving, thereby having the effect of elastic buffering and prolonging the whole service life of the compression bar device.
In this adjustment mode, the compression stroke of the spring 4 is designed to be longer than the length of the key groove 101, so that the spring 4 still has a certain compression amount after the compression rod 1 is impacted to the limit position by the tension of the steel cord, and the spring 4 has a sufficient buffering effect on the compression rod 1.
In combination with the above embodiment, through setting up the depression bar device that depression bar 1, connecting rod 3, locating pin 2 and spring 4 are constituteed, device simple structure, the cost is lower, dismantle easy maintenance, make wherein between depression bar 1, the connecting rod 3 can play elastic buffer effect through spring 4, make device life increase, the stability of test equipment reinforcing, and can change the interval between depression bar 1, the connecting rod 3 through locating pin 2, reach the effect of changing the precompression between spring 4 and the depression bar 1, with the steel cord of adaptation different tensile, so do not need frequent dismantlement, and reduce maintenance cost.
While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present invention. Accordingly, the scope of the invention is defined by the appended claims.
Claims (8)
1. A clamp lever apparatus for detecting a steel cord, comprising:
The pressing rod (1), a key groove (101) is formed in the first end of the pressing rod (1), and a mounting groove (102) for mounting the clamp is formed in the second end of the pressing rod;
the first end of the connecting rod (3) is fixedly connected with the detection equipment;
A positioning pin (2), wherein a first end of the positioning pin (2) is fixedly connected to a second end of the connecting rod (3), and the second end is movably installed in the key groove (101);
a spring (4) is arranged between the pressure lever (1) and the connecting rod (3), and the spring (4) is sleeved on the outer side of the locating pin (2) so that variable elastic pre-compression force exists between the pressure lever (1) and the connecting rod (3);
The locating pin (2) comprises a pin rod (21) arranged along the axial direction of the pressure rod (1) and a locating pin (22) vertically fixed on the outer wall of the second end of the pin rod (21), the locating pin (22) can move in the key groove (101) along the axial direction of the pressure rod (1), and the locating pin (22) can move towards one side of the pressure rod (1) or the connecting rod (3) along the axis so as to adjust the pre-compression force between the spring (4) and the pressure rod (1);
A screw hole (103) for installing a bolt is formed in the side surface of the key groove (101) along the circumferential direction, a detachable key block (5) is installed on one side, close to the connecting rod (3), in the key groove (101), and the key block (5) is fixed into the key groove (101) through the bolt;
According to the different pre-pressures required by the steel cord model to the spring (4), the key blocks (5) with different lengths are replaced so as to adjust the pre-pressures between the spring (4) and the compression bar (1) and adapt to the steel cords with different tensions, and the length of the key blocks (5) is smaller than half of the length of the key groove (101).
2. The clamp press lever device for detecting a steel cord according to claim 1, wherein a limit groove is formed in a side of the key block (5) which is attached to the limit pin (22), and the limit pin (22) is engaged with and mounted in the limit groove.
3. Clamp lever device for detecting a steel cord according to claim 2, characterized in that the first end of the limit pin (22) is fixedly connected to the connecting rod (3).
4. Clamp lever device for detecting a steel cord according to claim 1, characterized in that the first end of the limit pin (22) is screw-mounted on the connecting rod (3) and is used for adjusting the pre-compression between the spring (4) and the lever (1).
5. The clamp press lever device for detecting a steel cord according to claim 4, wherein a screw (23) is fixedly provided at a first end of the pin (21), and the pin (21) and the link (3) are screw-fixed by the screw (23).
6. The clamp press bar device for detecting steel cord according to claim 5, wherein the connecting rod (3) is provided with a hollow structure, a positioning plate (31) is fixedly arranged at one side of the interior of the connecting rod (3) close to the positioning pin (2), and the screw rod (23) penetrates through the positioning plate (31) and is fixedly connected with the positioning plate (31) through a nut (32).
7. Clamp lever device for detecting a steel cord according to claim 1, characterized in that the lever (1) is provided in a hollow structure enabling the pin lever (21) to move in the axial direction inside the lever (1).
8. A clamp press lever device for detecting a steel cord according to claim 1, wherein the compression stroke of the spring (4) is larger than the length of the key groove (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211031680.4A CN115351728B (en) | 2022-08-26 | 2022-08-26 | Clamping rod device for steel cord testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211031680.4A CN115351728B (en) | 2022-08-26 | 2022-08-26 | Clamping rod device for steel cord testing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115351728A CN115351728A (en) | 2022-11-18 |
| CN115351728B true CN115351728B (en) | 2025-11-04 |
Family
ID=84004143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211031680.4A Active CN115351728B (en) | 2022-08-26 | 2022-08-26 | Clamping rod device for steel cord testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115351728B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204868603U (en) * | 2015-06-16 | 2015-12-16 | 成都兴光工业科技有限公司 | Spring compresses tightly leak hunting anchor clamps |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3607572B2 (en) * | 2000-05-31 | 2005-01-05 | 小橋工業株式会社 | Pressure adjusting device for compression rod |
| US8505129B2 (en) * | 2011-11-11 | 2013-08-13 | Ex-Cell Home Fashions, Inc. | Rod with twist-end tension assembly |
| CN103128684B (en) * | 2013-02-22 | 2015-08-19 | 青岛三元集团股份有限公司 | Fixture and the clamping device in cubing |
| CN103624572A (en) * | 2013-11-19 | 2014-03-12 | 浙江吉利控股集团有限公司 | Fixture locating device |
| CN111924657B (en) * | 2020-09-25 | 2021-01-26 | 山东大业股份有限公司 | Steel cord paying-off tension control device |
-
2022
- 2022-08-26 CN CN202211031680.4A patent/CN115351728B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204868603U (en) * | 2015-06-16 | 2015-12-16 | 成都兴光工业科技有限公司 | Spring compresses tightly leak hunting anchor clamps |
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| Publication number | Publication date |
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| CN115351728A (en) | 2022-11-18 |
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