CN101698463B - Braking device of electric block - Google Patents
Braking device of electric block Download PDFInfo
- Publication number
- CN101698463B CN101698463B CN2009102092632A CN200910209263A CN101698463B CN 101698463 B CN101698463 B CN 101698463B CN 2009102092632 A CN2009102092632 A CN 2009102092632A CN 200910209263 A CN200910209263 A CN 200910209263A CN 101698463 B CN101698463 B CN 101698463B
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- Prior art keywords
- electric block
- reel
- brake
- rotating speed
- ratchet
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- 230000001681 protective effect Effects 0.000 claims description 8
- 230000008447 perception Effects 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 abstract 4
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 3
- 238000009414 blockwork Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a braking device of an electric block, which consists of a motor braking mechanism, a speed reducer braking mechanism and a winding drum forcible braking mechanism, wherein the winding drum forcible braking mechanism comprises a speed sensing disk connected with a protruding end of a winding drum output shaft, a speed sensor for sensing the rotating speed of the speed sensing disk, a rotating speed electric control part connected with the speed sensor, a ratchet wheel and a pawl mechanism of which the motion is controlled by the rotating speed electric control part; the ratchet wheel is fixedly connected to opposite ends of the speed sensing disk of a winding drum; and the position of the pawl mechanism is adapted to the ratchet wheel. By adopting the structure, the braking device of the electric block increases the safety coefficients of the electric block, can keep good braking performance of the electric block for a long time, and avoids the phenomena that the electric block injures on-site workers or breaks lifted goods in work.
Description
Technical field
The present invention relates to a kind of weight-lifting equipment, relate in particular to a kind of braking device of electric block.
Background technology
Existing braking device of electric block is made up of motor braking mechanism and reduction gear mechanism actuation mechanism, after its long-time use, the braking effect of motor braking mechanism can descend, the deceleration and stopping performance of reduction gear mechanism actuation mechanism also can descend, when effectively glancing impact of failsafety such as bearing in reduction gears, gear, tooth axle or motor braking mechanism, reduction gear mechanism actuation mechanism takes place, the weight by gravity of lifting can produce downward impulsive force, injures on-the-spot staff easily by a crashing object or breaks lifting cargo.
Summary of the invention
Technical matters to be solved by this invention is: a kind of braking device of electric block is provided, this kind braking device of electric block can keep the good braking performance and good of electric block for a long time, injures on-the-spot staff or the phenomenon of breaking lifting cargo when avoiding occurring electric block work by a crashing object.
Solve this technical problem, technical scheme of the present invention is: a kind of braking device of electric block, it is by motor braking mechanism, reduction gear mechanism actuation mechanism and reel forced brake mechanism form, described reel forced brake mechanism comprises the velocity response disk that is connected in reel output shaft external part, the speed sensor of perception velocities induction disk running speed, the rotating speed electric control part that links to each other with speed sensor, ratchet and by the detent mechanism of rotating speed electric control part control action, described ratchet is fixed in the velocity response disk opposite end of reel, and the position and the ratchet of described detent mechanism adapt.
Also be provided with drum brake mechanism in the described reel by described rotating speed electric control part control action, described drum brake mechanism comprises drum brake mechanism electromagnet, brake scotch push rod, brake scotch adjust bar, spring and brake scotch, described drum brake mechanism electromagnet is connected with the brake scotch push rod, described brake scotch adjust bar is connected with brake scotch by spring, and described brake scotch and reel inwall are fitted.
Described detent mechanism comprises two ratchet portions that are 90 ° of distributions.
Described velocity response disk is outside equipped with protective cover, and described speed sensor stretches in the protective cover.
Braking device of electric block of the present invention adopts such structure, when electric block uses for a long time, motor braking mechanism and reduction gear mechanism actuation mechanism deceleration and stopping performance descend or bearing in reduction gears, gear, system unit faults such as tooth axle, the weight of electric block lifting falls rapidly at by gravity, the faster rotational speed of reel, the rotating speed of the speed sensor perception reel of reel forced brake mechanism surpasses the setting rotating speed at this moment, the rotating speed electric control part of reel forced brake mechanism will make detent mechanism and ratchet engaged, make drum brake mechanism begin action, reel is steadily stopped, and the weight that braking is being lifted by crane can not glide.Compared with prior art, more increase the safety factor of electric block, can keep the good braking performance and good of electric block for a long time, injured on-the-spot staff or the phenomenon of breaking lifting cargo when avoiding occurring electric block work by a crashing object.
Description of drawings
Below in conjunction with accompanying drawing braking device of electric block of the present invention is done explanation in further detail;
Fig. 1 is a braking device of electric block running condition scheme drawing of the present invention;
Fig. 2 is an A-A cross-sectional schematic shown in Figure 1;
Fig. 3 analyses and observe enlarged diagram for B-B shown in Figure 1;
In Fig. 1, Fig. 2, Fig. 3,1, retarder; 2, connect support plate; 3, detent mechanism; 4, reel; 5, rotating speed electric control part; 6, reel bearing support plate; 7, drum brake mechanism; 8, speed sensor; 9, velocity response disk; 10, reel output shaft; 11, protective cover; 12, motor; 13, ratchet; 14, ratchet portion; 15, brake scotch; 16, brake scotch push rod; 17, brake scotch adjust bar; 18, drum brake electromagnet; 19, spring.
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3, a kind of braking device of electric block, by motor braking mechanism, retarder stop mechanism and reel forced brake mechanism form, reel forced brake mechanism comprises the velocity response disk 9 that is connected in reel output shaft 10 external parts, the speed sensor 8 of perception velocities induction disk 9 rotating speeds, the rotating speed electric control part 5 that links to each other with speed sensor 8, ratchet 13, detent mechanism 3 by rotating speed electric control part 5 control actions, protective cover 11 and by the drum brake mechanism 7 of rotating speed electric control part 5 control actions, ratchet 13 is fixed in velocity response disk 9 opposite ends of reel 4, and have between the motor 12 at interval, the position of detent mechanism 3 and ratchet 13 adapt, and have between velocity response disk 9 and the reel bearing support plate 6 at interval.Drum brake mechanism 7 comprises drum brake mechanism electromagnet 18, brake scotch push rod 16, brake scotch adjust bar 17, spring 19 and brake scotch 15, drum brake mechanism electromagnet 18 is connected with brake scotch push rod 16, brake scotch adjust bar 17 is connected with brake scotch 15 by spring 19, and brake scotch 15 is fitted with reel 4 inwalls.Has protective cover 11 outside the velocity response disk 9, speed sensor 8 stretches in the protective cover 11, detent mechanism 3 comprises two ratchet portions 14 that are 90 ° of distributions, each ratchet portion 14 comprises the ratchet support, is connected in the ratchet of ratchet support, brake electromagnet and ratchet connecting strap, brake electromagnet is affixed by connecting strap and ratchet, and the ratchet support is fixed on the connection support plate 2 of close retarder 1 of reel 4 ends.
Braking device of electric block of the present invention adopts such structure, when electric block uses for a long time, motor braking mechanism and reduction gear mechanism actuation mechanism deceleration and stopping performance descend or bearing in reduction gears, gear, system unit faults such as tooth axle, the weight of electric block lifting falls rapidly at by gravity, the faster rotational speed of reel, the rotating speed of the speed sensor perception reel of reel forced brake mechanism surpasses the setting rotating speed at this moment, the rotating speed electric control part of reel forced brake mechanism will make detent mechanism and ratchet engaged, make drum brake mechanism begin action, reel is steadily stopped, the weight that braking is being lifted by crane can not glide, and has guaranteed terrestrial operation personal security and wayside equipment safety.
Claims (3)
1. braking device of electric block, it is characterized in that: it is by motor braking mechanism, reduction gear mechanism actuation mechanism and reel forced brake mechanism form, described reel forced brake mechanism comprises the velocity response disk (9) that is connected in reel output shaft (10) external part, the speed sensor (8) of perception velocities induction disk (9) rotating speed, the rotating speed electric control part (5) that links to each other with speed sensor (8), ratchet (13) and by the detent mechanism (3) of rotating speed electric control part (5) control action, described ratchet (13) is fixed in velocity response disk (9) opposite end of reel (4), the position of described detent mechanism (3) and ratchet (13) adapt, also be provided with drum brake mechanism (7) in the described reel (4) by described rotating speed electric control part (5) control action, described drum brake mechanism (7) comprises drum brake mechanism electromagnet (18), brake scotch push rod (16), brake scotch adjust bar (17), spring (19) and brake scotch (15), described drum brake mechanism electromagnet (18) is connected with brake scotch push rod (16), described brake scotch adjust bar (17) is connected with brake scotch (15) by spring (19), and described brake scotch (15) is fitted with reel (4) inwall.
2. braking device of electric block according to claim 1 is characterized in that: described detent mechanism (3) comprises that two are
The ratchet portion (14) that distributes.
3. braking device of electric block according to claim 2 is characterized in that: described velocity response disk (9) is outside equipped with protective cover (11), and described speed sensor (8) stretches in the protective cover (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102092632A CN101698463B (en) | 2009-10-28 | 2009-10-28 | Braking device of electric block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102092632A CN101698463B (en) | 2009-10-28 | 2009-10-28 | Braking device of electric block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101698463A CN101698463A (en) | 2010-04-28 |
| CN101698463B true CN101698463B (en) | 2011-06-29 |
Family
ID=42146924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102092632A Expired - Fee Related CN101698463B (en) | 2009-10-28 | 2009-10-28 | Braking device of electric block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101698463B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2797831B1 (en) | 2011-12-27 | 2016-06-01 | Services Pétroliers Schlumberger | Braking systems and methods for a winch drum |
| CN105819358B (en) * | 2016-06-13 | 2018-01-05 | 中冶建工集团有限公司 | A kind of cat ladder climbs anti-fall power assisting device |
| CN105836649B (en) * | 2016-06-13 | 2018-05-01 | 中冶建工集团有限公司 | A kind of cat ladder climbing method |
| CN106429932A (en) * | 2016-09-13 | 2017-02-22 | 成都聚智工业设计有限公司 | Winch |
| CN106892371B (en) * | 2017-04-20 | 2019-04-05 | 上海联影医疗科技有限公司 | The transmission mechanism and digital X-ray machine of digital X-ray machine |
| US10980504B2 (en) | 2017-04-20 | 2021-04-20 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for moving a component of an X-ray machine |
| CN111017762B (en) * | 2019-12-19 | 2021-06-04 | 上海宝冶工程技术有限公司 | Ship lifting tractor |
| CN114014127A (en) * | 2021-12-07 | 2022-02-08 | 苏州德奥电梯有限公司 | Flat-bed anti-sliding device of car elevator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB796166A (en) * | 1955-08-05 | 1958-06-04 | Thompson Bros Engineers Ltd | Improvements in and relating to control means for winches and the like |
| CN201172607Y (en) * | 2007-12-21 | 2008-12-31 | 南通力威机械有限公司 | Mooring winch for ocean platform |
| CN201525727U (en) * | 2009-10-28 | 2010-07-14 | 芜湖南起起重机械有限公司 | Braking device for electric block |
-
2009
- 2009-10-28 CN CN2009102092632A patent/CN101698463B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB796166A (en) * | 1955-08-05 | 1958-06-04 | Thompson Bros Engineers Ltd | Improvements in and relating to control means for winches and the like |
| CN201172607Y (en) * | 2007-12-21 | 2008-12-31 | 南通力威机械有限公司 | Mooring winch for ocean platform |
| CN201525727U (en) * | 2009-10-28 | 2010-07-14 | 芜湖南起起重机械有限公司 | Braking device for electric block |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2006-273499A 2006.10.12 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101698463A (en) | 2010-04-28 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20141028 |
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| EXPY | Termination of patent right or utility model |