CN120003886A

CN120003886A - A lifting device for a heavy-loaded stacker with counterweight in narrow aisle

Info

Publication number: CN120003886A
Application number: CN202510226115.0A
Authority: CN
Inventors: 祁冰; 周春
Original assignee: Beijing Shoujia Steel Structure Co ltd
Current assignee: Beijing Shoujia Steel Structure Co ltd
Priority date: 2025-02-27
Filing date: 2025-02-27
Publication date: 2025-05-16

Abstract

The application relates to a lifting device of a heavy-load narrow roadway stacker with a counterweight, which comprises a bearing platform, an upright post, a lifting device and a counterweight system, wherein the lifting device comprises a lifting motor, a driving chain wheel set, a first reversing chain wheel set, a second reversing chain wheel set, a third reversing chain wheel set and a chain set matched with the chain wheel set. The lifting devices are symmetrically arranged on the stacker to jointly complete lifting of the lifting object stage. The lifting motor, the driving chain wheel set and the first reversing chain wheel set are arranged on the outer side of the middle lower portion of the upright post, and the counterweight system is arranged inside the upright post and ascends and descends along the inside of the upright post through the guide piece. The device has remarkably improved lifting efficiency and stability, reduces the gravity center of equipment and enhances the safety and reliability of high-order goods storage and taking by optimizing the layout of the lifting device and the arrangement of the counterweight system.

Description

Lifting device of heavy-load narrow roadway stacker with counterweight

Technical Field

The application relates to the application field of narrow roadway stackers, in particular to a lifting device of a heavy-load narrow roadway stacker with a counterweight.

Background

The warehouse logistics, namely, the warehouse, the site, the storage, the custody, the loading and unloading, the delivery and the goods distribution are utilized, the traditional warehouse definition is given from the perspective of the material reserve, the modern warehouse is not the warehouse and the warehouse management in the traditional sense, but the warehouse in the integrated background of the economic globalization and the supply chain, and is the warehouse in the modern logistics system.

Along with the development of society and the progress of science and technology, the storage transportation gradually realizes automation, and stacker stacking transportation gradually replaces manual work, realizes storage intellectualization, reduces labor intensity and storage management cost, and is gradually popularized and applied in the market.

In the storage field, due to the limitation of the use space, a tunnel type stacker is generally adopted to place materials on a three-dimensional warehouse, the tunnel type stacker is evolved from a forklift and a bridge type stacker, the bridge type stacker is greatly limited in running speed due to heavy bridges, the tunnel type stacker is only suitable for warehouses with low in-out and in-in frequency or long raw materials and heavy goods storage, the tunnel type stacker is mainly used for running back and forth in a tunnel of a high-rise goods shelf, and goods positioned at a road junction are stored in a goods roadway, or goods in a goods taking-out grid are conveyed to the road junction.

The narrow lane stacker is the main equipment in the automated dense warehouse system. The object stage can move up and down along the height direction of the goods shelf according to the WCS instruction in a roadway between the three-dimensional goods shelves, and the goods are stored in or taken out from the goods shelves by the fork.

The traditional narrow roadway stacker is lifted by adopting a steel wire rope reel and a pulley block, and the weight of goods to be stored and taken is generally less than 5 tons. For heavy loads of more than 5 tons, the bearing capacity of a single steel wire rope is limited, and the diameters of pulleys and reels are increased correspondingly by increasing the diameter of the steel wire rope, so that the equipment space and the equipment weight are increased. Meanwhile, the power of a load increasing lifting motor is correspondingly increased, and the additional bending moment generated when a lifting device arranged on a vertical column of the stacker works has great influence on the structure of the stacker and the running stability of equipment, so that the design and manufacturing difficulty is increased.

Disclosure of Invention

The application provides a lifting device of a heavy-load narrow roadway stacker with a counterweight, which aims to improve the stability of the narrow roadway stacker at high load and high lifting height.

The application provides a lifting device for a heavy-load narrow roadway stacker with a counterweight, which adopts the following technical scheme:

A heavy-duty, weighted, narrow roadway stacker lift apparatus comprising:

The bearing platform is provided with two upright posts above;

And the lifting devices are arranged on the upright posts, and are symmetrically arranged on the stacker to jointly complete lifting of the lifting object stage.

By adopting the technical scheme, the load can be uniformly distributed on the two devices by arranging the two sets of lifting devices, so that the bearing pressure of a single device is reduced, and meanwhile, when the stacker lifts a heavy object, if only one set of lifting device is used, the condition of shaking or instability can be generated due to overlarge load, the two sets of lifting devices are symmetrically arranged, more balanced supporting force can be provided, and the stability of the stacker in the lifting process is enhanced. By providing two separate sets of lifting means, even if one set fails, the other set can still provide a certain support, thereby reducing the possibility of accidents.

Preferably, the lifting device comprises a lifting motor, a driving chain wheel set, a first reversing chain wheel set, a second reversing chain wheel set, a third reversing chain wheel set and a chain set matched with the chain wheel set.

Through adopting above-mentioned technical scheme, the cooperation of initiative sprocket group and switching-over sprocket group for power can be followed the smooth and easy transmission of chain, has promoted holistic work efficiency, through setting up first, second, third switching-over sprocket group, ensures the steady transition of chain at the switching-over in-process, reduces power loss and mechanical wear.

Preferably, the lifting motor, the driving sprocket set and the first reversing sprocket set are mounted on the outer side of the middle lower portion of the upright post.

Through adopting above-mentioned technical scheme, set up lifting motor, initiative sprocket group and first switching-over sprocket group lower part in the stand can reduce overall structure's focus, promotes the stacker stability in the operation in-process, simultaneously, set up in the stand outside can effectively utilize stand space, avoid producing the interference with other parts, overall structure is compact high-efficient.

Preferably, the lifting device further comprises a counterweight system, and the counterweight system is connected with the third reversing sprocket set.

Through adopting above-mentioned technical scheme, compare in traditional wire rope reel lifting means, adopt the counter weight can reduce hoisting motor power greatly, the counter weight is with the equipment focus height under the goods operating mode of stacker high-order access can be reduced to the goods motion in opposite directions simultaneously, promotes the overall stability when the high-order access goods of stacker.

Preferably, the counterweight system is disposed inside the upright.

Through adopting above-mentioned technical scheme, place the counter weight system inside the stand, can effectively utilize the cavity structure of stand, avoid additionally taking up external space to realize overall structure's compact design. Meanwhile, the counterweight system is placed inside the upright posts and is positioned between the two upright posts to interfere with the articles so as to facilitate the lifting of the articles, and the counterweight system is used as an important component, has important safety, is internally arranged in the upright posts and can be protected by the upright post structure, so that the interference and damage of external factors to the counterweight system are reduced.

Preferably, the counterweight system is lifted and lowered along the inside of the upright by a guide member, the guide member comprises a guide rail vertically arranged in the upright and a guide wheel arranged on the counterweight system, and the guide wheel moves up and down along the guide rail.

By adopting the technical scheme, the counterweight system can be ensured to accurately move along a preset path in the lifting process through the cooperation of the guide rail and the guide wheel, deviation or shaking is avoided, the guide wheel moves up and down along the guide rail, friction and resistance during operation of the counterweight system are reduced, so that more stable lifting action is realized, meanwhile, the stability of the counterweight system can be improved, the falling or damage risk caused by unexpected situations is reduced, and the safety of equipment operation is ensured.

Preferably, a cross beam is arranged at the top of the upright post, and the second reversing chain wheel set and the third reversing chain wheel set are arranged on an upper cross beam structure.

Through adopting above-mentioned technical scheme, through setting up the crossbeam at the stand top, can form a more firm bearing structure, effectively promote the structural stability of whole equipment. The reversing chain wheel set is arranged on the cross beam, so that the vertical space can be reasonably utilized, the mutual interference among the components is avoided, and the compact and efficient space layout is realized.

Preferably, the chains in the chain set are multi-row steel roller chains.

By adopting the technical scheme, the tensile strength of the multi-row steel roller chain is far superior to that of a steel wire rope, the elastic deformation is small, the chain transmission stability is good, the chain does not slip in the lifting process, the braking response is rapid, and the positioning of the object stage is accurate.

In summary, the present application includes at least one of the following beneficial technical effects:

1. Simultaneously, when the stacker lifts the heavy object, if only one set of lifting device is used, shaking or unstable conditions can be generated due to overlarge load, and the two sets of lifting devices are symmetrically arranged, so that more balanced supporting force can be provided, and the stability of the stacker in the lifting process is enhanced. By arranging two sets of independent lifting devices, even if one set fails, the other set can still provide a certain support, so that the possibility of accidents is reduced;

2. Through setting up the counter weight system, can reduce greatly and promote motor power, the counter weight is moved with the goods in opposite directions simultaneously can reduce the equipment focus height under the high-order access goods operating mode of stacker, promotes the overall stability when high-order access goods of stacker.

Drawings

FIG. 1 is a schematic diagram of a heavy-duty narrow roadway stacker lifting apparatus with counterweights.

Fig. 2 is an exploded view of the lifting device.

The reference numerals indicate 1, a bearing platform, 11, a column, 111, an overhaul window, 112, a fixing piece, 2, a lifting device, 21, a lifting motor, 22, a driving sprocket set, 221, a small sprocket, 222, a large sprocket, 23, a first reversing sprocket set, 24, a second reversing sprocket set, 25, a third reversing sprocket set, 26, a chain set, 261, a first chain, 262, a second chain, 263, a third chain, 264, a fourth chain, 27, a counterweight system, 271, a guide piece, 2711, a guide rail, 2712, a guide wheel, 28 and a mounting frame.

Detailed Description

The application is described in further detail below with reference to fig. 1-2.

The embodiment of the application discloses a lifting device of a heavy-load narrow roadway stacker with a counterweight. Referring to fig. 1, a heavy-duty narrow roadway stacker lifting device with a counterweight comprises a bearing platform 1 and a lifting device 2.

Two upright posts 11 are arranged on the bearing platform 1, the two upright posts 11 are hollow, the top of each upright post 11 is provided with a cross beam perpendicular to the upright posts 11, and the cross beams of the two upright posts 11 are oppositely arranged.

Specifically, the bearing platform 1 is made of a high-strength steel plate, such as Q345B, and has good rigidity and deformation resistance. The flatness and flatness of the bearing platform 1 are strictly checked, so that the stability and the precision of the stacker in the running process are ensured. The periphery of the bearing platform 1 is provided with a protective railing for preventing personnel from entering a dangerous area by mistake. The bottom of the bearing platform 1 is provided with a plurality of supporting feet for adjusting the levelness of the bearing platform 1 and ensuring the stability of the stacker in the running process.

A counterweight access window 111 is left below the upright 11 to facilitate installation and maintenance of the counterweight system 27. The access window 111 is designed as a detachable cover plate or a reversible design, and is convenient to open and close. The cover plate is made of stainless steel material, and is corrosion-resistant and durable. The upright 11 is made of high-strength alloy steel, such as Q345B, and has good rigidity and deformation resistance. The cross section of the upright post 11 can be rectangular or circular, and is selected according to practical requirements. In this embodiment, the cross section of the pillar 11 is rectangular. The height of the upright 11 can be customized according to the lifting height of the stacker, and is usually more than 15 meters. The bottom of the upright 11 is fixed on the bearing platform 1 through bolts, so that the stability of the upright 11 is ensured.

The lifting device 2 comprises a lifting motor 21, a driving sprocket set 22, a first reversing sprocket set 23, a second reversing sprocket set 24, a third reversing sprocket set 25 and a chain set 26 matched with the sprocket sets, and a counterweight system 27.

Specifically, the mounting frame 28 is disposed at the middle lower part of the upright 11, in this embodiment, the mounting frame 28 is disposed at 1/3 of the height of the upright 11, the mounting frame 28 and the upright 11 are detachably disposed, an L-shaped fixing member 112 is fixed on the upright 11, and the mounting frame 28 is fixedly connected with the fixing member 112.

The mounting frame 28 is configured as an L-shaped frame formed by welding a plurality of i-beams, and the lifting motor 21, the driving sprocket set 22 and the first reversing sprocket set 23 are mounted on the mounting frame 28.

The lift motor 21 may be a high performance ac servo motor, such as the Simotics series motor from siemens, with high torque density and high dynamic response characteristics.

The drive sprocket set 22 is made of a high strength alloy steel, such as 42CrMoA, with good wear and fatigue resistance. The driving sprocket set 22 includes a small sprocket 221 and a large sprocket 222, and the small sprocket 221 is mounted on an output shaft of the lift motor 21 by a key connection to ensure reliability of torque transmission. The diameter of the large sprocket 222 may be selected according to practical requirements, such as 200mm or 300mm, to accommodate different load and lifting speed requirements.

The first reversing sprocket set 23 is also made of high strength alloy steel, such as 40CrNiMoA, to ensure long-term operation reliability. The tooth form of the first reversing sprocket set 23 is precisely machined, so that the meshing precision of the chain and the sprocket is ensured. The first reversing sprocket set 23 is fixed on the outer side of the upright post 11 through a bearing seat, and the bearing seat is made of cast iron material and has good rigidity and stability. The diameter of the first reversing sprocket set 23 can be selected according to practical requirements, for example, 150mm or 200mm, so as to adapt to the requirements of different loads and lifting speeds.

The second reversing sprocket set 24 and the third reversing sprocket set 25 are mounted on the cross beam at the top of the upright 11. The second reversing sprocket set 24 can be fixed on the cross beam through a bearing seat, and the bearing seat is made of cast iron material and has good rigidity and stability. The third reversing sprocket set 25 is fixed on the cross beam through a bracket, and the bracket is made of aluminum alloy material, so that the device is light and corrosion-resistant. The diameters of the second reversing sprocket set 24 and the third reversing sprocket set 25 can be selected according to practical requirements, for example, 150mm or 200mm, so as to adapt to the requirements of different loads and lifting speeds.

The matching chain set 26 comprises a first chain 261 arranged between the large chain wheel 221 and the small chain wheel 221 of the driving chain wheel set 22, a second chain 262 arranged between the second reversing chain wheel sets 24, a third chain 263 arranged between the third reversing chain wheel sets 25, and a fourth chain 264 connected with the counterweight system 27 by the third reversing chain wheel sets 25. The chain adopts a plurality of rows of steel roller chains, such as 8000 series of Tsuki chains, has high tensile strength and low elastic deformation, and ensures stability and accuracy in the lifting process. The pitch of the chain may be selected according to practical requirements, for example 1 inch or 1.5 inches, to accommodate different load and lifting speed requirements. The chain set 26 may be mounted by means of cotter pins secured to the sprocket set to ensure the tightness and reliability of the chain.

Referring to fig. 2, a weight system 27 is provided inside the column 11 to be lifted and lowered along the column 11 by a guide 271. The guide 271 includes a guide rail 2711 disposed vertically inside the column 11 and a guide wheel 2712 disposed on the counterweight system 27. The guide rail 2711 is made of high-strength steel, such as Q345B, and has good rigidity and deformation resistance. The guide rail 2711 may be detachably connected to the inside of the column 11, or may be integrally provided with the column 11, and in this embodiment, the guide rail 2711 is detachably connected to the column 11, and the guide rail 2711 is provided at four corners of the column 11. The guide wheel 2712 is made of nylon material, has good self-lubricating property and low friction coefficient, and reduces running resistance.

The working method of the lifting device 2 is as follows:

S1, receiving an automatic Warehouse Control (WCS) instruction, enabling the stacker to travel to a target horizontal position, and stopping the traveling motor.

S2, starting the lifting motor 21 to drive the small chain wheel 221 of the driving chain wheel set 22 to rotate, and driving the large chain wheel 222 of the driving chain wheel set 22 through the chain set 26, wherein the large chain wheel 222 is coaxial with the chain wheel of the first reversing chain wheel set 23, and the chain wheel of the first reversing chain wheel set 23 rotates along with the large chain wheel.

S3, a first reversing chain wheel set 23 drives a second reversing chain wheel set 24 to rotate through a chain set 26, and the second reversing chain wheel set 24 is provided with two coaxial chain wheels which rotate in the same direction.

S4, a second reversing sprocket set 24 drives a third reversing sprocket set 25 to rotate through a chain set 26, and two coaxial sprockets of the third reversing sprocket set 25 rotate in the same direction.

S5, a chain wheel of the third reversing chain wheel set 25 drives the chain set 26 to move, one end of the chain set 26 is connected with the object table, the other end of the chain set 26 is connected with the counterweight, the chain set 26 drives the object table and the counterweight system 27 to vertically move in the opposite direction, the object table reaches the height of the target cargo compartment, and the lifting motor 21 stops.

S6, completing one lifting operation cycle.

The implementation principle of the heavy-load narrow lane stacker lifting device with the counterweight is that the two sets of lifting devices 2 are arranged, so that loads can be uniformly distributed on the two devices, and the bearing pressure of a single device is reduced, meanwhile, when the stacker lifts a heavy object, if only one set of lifting device 2 is used, shaking or unstable conditions can be generated due to overlarge loads, the two sets of lifting devices 2 are symmetrically arranged, more balanced supporting force can be provided, and the stability of the stacker in the lifting process is enhanced. By providing two separate sets of lifting means 2, even if one of the sets fails, the other set can still provide a certain support, thus reducing the possibility of accidents.

The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.

Claims

1. A heavy-loaded counterweighted narrow-aisle stacker lifting device, characterized in that it includes:

A carrying platform (1), wherein two columns (11) are arranged above the carrying platform (1);

The lifting device (2) is arranged on the column (11), and two sets of the lifting device (2) are symmetrically arranged on the stacker to jointly complete the lifting and lowering of the loading platform.

2. The heavy-duty belt counterweight narrow aisle stacker lifting device according to claim 1 is characterized in that: the lifting device (2) includes a lifting motor (21), a driving sprocket group (22), a first reversing sprocket group (23), a second reversing sprocket group (24), a third reversing sprocket group (25) and a chain group (26) matching the sprocket group.

3. The heavy-duty belt counterweight narrow aisle stacker lifting device according to claim 2 is characterized in that the lifting motor (21), the driving sprocket group (22), and the first reversing sprocket group (23) are installed on the outer side of the lower middle part of the column (11).

4. The heavy-duty counterweighted narrow-aisle stacker lifting device according to claim 2 is characterized in that the lifting device (2) also includes a counterweight system (27), and the counterweight system (27) is connected to the third reversing sprocket set (25).

5. The heavy-loaded narrow-aisle stacker lifting device with counterweight according to claim 4 is characterized in that the counterweight system (27) is arranged inside the column (11).

6. According to the heavy-loaded narrow-aisle stacker lifting device with counterweight as described in claim 5, it is characterized in that the counterweight system (27) is raised and lowered along the inside of the column (11) through a guide member (271), and the guide member (271) includes a guide rail (2711) vertically arranged inside the column (11) and a guide wheel (2712) arranged on the counterweight system (27), and the guide wheel (2712) moves up and down along the guide rail (2711).

7. The heavy-duty belt counterweight narrow aisle stacker lifting device according to claim 2 is characterized in that a crossbeam is arranged on the top of the column (11), and the second reversing sprocket group (24) and the third reversing sprocket group (25) are installed on the upper crossbeam structure.

8. The heavy-duty belt counterweight narrow aisle stacker lifting device according to claim 2, characterized in that the chains in the chain group (26) are multi-row steel roller chains.