Speed-multiplied chain transmission lifting mechanism

Abstract

The utility model relates to the technical field of lifting equipment, in particular to a double-speed chain transmission lifting mechanism which comprises a fixed bottom plate, a supporting frame is arranged on the fixed bottom plate, a rotating shaft is rotationally sleeved on the top of the supporting frame, a chain wheel is fixedly sleeved on one side of the rotating shaft, and a driven meshing wheel is fixedly sleeved on the other side of the rotating shaft. The chain wheel is meshed with a chain, one end of the chain is fixedly connected with a counterweight plate, the other end of the chain is fixedly connected with one side of a connecting frame, the other side of the connecting frame is fixedly connected with a lifting plate, a clamping plate is installed on the upper side of the lifting plate, and a moving frame is arranged on the upper side of the clamping plate; compared with a traditional hydraulic cylinder driving mode, the space is saved, the cost is reduced, the efficiency is improved, the clamping plates can be driven to push the ends of the workpieces and push the workpieces outwards through transverse movement of the movable frame, the trouble of manually pushing the workpieces is not needed, and the workload of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, specifically a double-speed chain drive lifting mechanism. Background Technology

[0002] The double-speed chain drive lifting mechanism is a mechanical device that combines double-speed chain drive and lifting functions. It is widely used in industrial automation, logistics conveying, warehousing systems and other fields. Through the special design of the double-speed chain and the drive system, it can achieve efficient and stable lifting of materials in the vertical direction and can accurately position them between different heights.

[0003] In the existing technology, the lifting device driven by the double-speed chain drive often uses a hydraulic cylinder as the power source. However, the hydraulic cylinder occupies a large vertical space, has a long cylinder stroke and high cost. At the same time, the lifting platform driven by the hydraulic cylinder does not have a lateral conveying function. After the lifting platform is connected to the double-speed chain track, the workpiece placed on the lifting platform needs to be pushed manually to move it onto the double-speed chain track, which increases the workload of the workers. Utility Model Content

[0004] The purpose of this invention is to provide a high-speed chain drive lifting mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a double-speed chain drive lifting mechanism, comprising: a fixed base plate, characterized in that: a support frame is fixedly connected to the upper surface of the fixed base plate, a rotating shaft is rotatably sleeved on the top of the support frame, a sprocket is fixedly sleeved on one side of the rotating shaft, and a driven meshing wheel is fixedly sleeved on the other side of the rotating shaft, the driven meshing wheel meshing with the driving meshing wheel through a meshing belt;

[0006] A chain is engaged on the sprocket. One end of the chain is fixedly connected to the counterweight plate, and the other end of the chain is fixedly connected to one side of the connecting frame. The other side of the connecting frame is fixedly connected to the lifting plate. A clamping plate is installed on the upper side of the lifting plate, and a movable frame is provided on the upper side of the clamping plate.

[0007] Preferably, one side of the upper surface of the fixed base plate is fixedly connected to the support frame, the other side of the upper surface of the fixed base plate is fixedly connected to the frame, and one side of the frame is fixedly connected to the lifting motor.

[0008] Preferably, the output end of the lifting motor is fixedly connected to the active meshing wheel, a limit rod is fixedly installed on one side of the support frame, and a limit groove is opened on the other side of the support frame.

[0009] Preferably, the limiting groove and the counterweight plate are slidably connected, one side of the connecting frame is welded and fixed to the lifting plate, and the other side of the connecting frame is slidably sleeved on the limiting rod.

[0010] Preferably, one side of the lifting plate is fixedly connected to the L-shaped plate. There are two L-shaped plates arranged symmetrically about the central plane of the lifting plate. One of the L-shaped plates is rotatably fitted with a threaded rod, one end of which is fixedly connected to the output end of the drive motor. The other L-shaped plate is fixedly fitted with a sliding rod.

[0011] Preferably, a clamping motor is provided between the two L-shaped plates. The clamping motor is fixedly installed on the upper surface of the movable frame. Limiting rails are symmetrically fixedly installed on the lower surface of the movable frame. The limiting rails are slidably connected to the clamping plates. The output end of the clamping motor is fixedly connected to one end of the drive shaft, and a gear is fixedly sleeved on the other end of the drive shaft.

[0012] Preferably, the gear meshes with one side of the rack on both sides, the rack is fixedly connected to the clamping plate, a groove is provided on the other side of the rack, the groove is slidably connected to one side of the limiting block, the other side of the limiting block is fixedly connected to the side of the moving frame, and connecting sleeves are fixedly connected to both sides of the upper surface of the moving frame, one of the connecting sleeves is threadedly connected to the threaded rod, and the other connecting sleeve is slidably connected to the sliding rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: Compared with the traditional hydraulic cylinder drive method, the meshing belt drive sprocket and chain drive has obvious advantages in saving space, reducing costs, improving efficiency, enhancing reliability, and simplifying installation and maintenance. The workpiece is placed on the upper surface of the lifting plate and clamped by the clamping plate, thereby improving the stability of the workpiece during movement. At the same time, when the lifting plate lifts the workpiece to the appropriate position, the lateral movement of the moving frame can drive the clamping plate to push the end of the workpiece outward, eliminating the need for manual pushing of the workpiece and reducing the workload of the staff. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a top view of the overall structure of this utility model;

[0016] Figure 3 This is a bottom view of the internal structure of this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Fixed base plate; 2. Support frame; 3. Rotating shaft; 4. Sprocket; 5. Driven meshing wheel; 6. Meshing belt; 7. Driving meshing wheel; 8. Chain; 9. Counterweight plate; 10. Connecting frame; 11. Lifting plate;

[0019] 12. Clamping plate; 13. Moving frame; 14. Frame; 15. Lifting motor; 16. Limiting rod; 17. Limiting groove; 18. L-shaped plate; 19. Threaded rod; 20. Drive motor; 21. Slide rod; 22. Clamping motor;

[0020] 23. Limit rail; 24. Drive shaft; 25. Gear; 26. Rack; 27. Slide groove; 28. Limit block;

[0021] 29. Connecting sleeve. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Example 1: Please refer to Figures 1-4 This utility model provides a technical solution: a double-speed chain drive lifting mechanism, comprising: a fixed base plate 1, a support frame 2 fixedly connected to the upper surface of the fixed base plate 1, a rotating shaft 3 rotatably sleeved on the top of the support frame 2, a sprocket 4 fixedly sleeved on one side of the rotating shaft 3, and a driven meshing wheel 5 fixedly sleeved on the other side of the rotating shaft 3. The driven meshing wheel 5 engages with the driving meshing wheel 7 through a meshing belt 6. A chain 8 is meshed on the sprocket 4. One end of the chain 8 is fixedly connected to a counterweight plate 9, and the other end of the chain 8 is fixedly connected to one side of a connecting frame 10. The other side of the connecting frame 10 is fixedly connected to a lifting plate 11. A clamping plate 12 is installed on the upper side of the lifting plate 11, and a movable frame 13 is provided on the upper side of the clamping plate 12.

[0024] The fixed base plate 1 serves as the foundation of the entire device, ensuring its stability during operation. When the lifting plate 11 needs to be raised or lowered, the driving engagement wheel 7 rotates, which, under the meshing action of the engagement belt 6, drives the driven engagement wheel 5 to rotate. The driven engagement wheel 5 then drives the rotating shaft 3 to rotate, which rotates under the limit of the support frame 2. The rotating shaft 3 then drives the sprocket 4 fixedly mounted on it to rotate. The sprocket 4 meshes with the chain 8, thus driving the lifting plate 11 to move. When the counterweight plate 9 at one end of the chain 8 moves downward, the connecting frame 10 fixedly connected to the other end of the chain 8 moves upward, thereby raising the lifting plate 11, and vice versa. This enables the lifting control of the lifting plate 11. Compared with the traditional hydraulic cylinder drive method, the meshing belt drive sprocket 4 and chain 8 have significant advantages in saving space, reducing costs, improving efficiency, enhancing reliability, and simplifying installation and maintenance. The workpiece is placed on the upper surface of the lifting plate 11 and clamped by the clamping plate 12, thereby improving the stability of the workpiece during movement. At the same time, when the lifting plate 11 lifts the workpiece to a suitable position, the moving frame 13 moves laterally, which can drive the clamping plate 12 to push the end of the workpiece and push the workpiece outward. This eliminates the need for manual pushing of the workpiece and reduces the workload of the staff.

[0025] Example 2: Based on Example 1, one side of the upper surface of the fixed base plate 1 is fixedly connected to the support frame 2, and the other side of the upper surface of the fixed base plate 1 is fixedly connected to the frame 14. One side of the frame 14 is fixedly connected to the lifting motor 15. The fixed base plate 1 provides stable support for the support frame 2 and the frame 14. The frame 14 fixes the lifting motor 15. The output end of the lifting motor 15 is fixedly connected to the active meshing wheel 7. A limit rod 16 is fixedly installed on one side of the support frame 2, and a limit groove 17 is opened on the other side of the support frame 2. The output end of the lifting motor 15 passes through the frame 14 and is fixedly connected to the active meshing wheel 7. One end of the limit rod 16 is fixedly connected to the top of the support frame 2, and the other end of the limit rod 16 is fixedly connected to the upper surface of the support frame 2. The limit groove 17 is slidably connected to the counterweight plate 9. One side of the connecting frame 10 is welded and fixed to the lifting plate 11, and the other side of the connecting frame 10 is slidably sleeved on the limit rod 16. The counterweight plate 9 is limited to sliding through the limit groove 17, and the connecting frame 10 is limited to sliding through the limit rod 16.

[0026] The lifting motor 15 is electrically connected to an external terminal control device. Starting the lifting motor 15 causes the driving engagement wheel 7, which is fixedly mounted at its output end, to rotate. The driving engagement wheel 7 drives the driven engagement wheel 5 to rotate through the meshing action of the meshing belt 6. The driven engagement wheel 5 drives the rotating shaft 3, which is fixedly sleeved inside it, to rotate under the limit of the support frame 2. The rotating shaft 3 then drives the sprocket 4 to rotate. Under the rotation of the sprocket 4, it meshes with the chain 8, thus driving the chain 8. When one end of the chain 8 drives the connecting frame 10 upwards, the other end of the chain 8... The counterweight plate 9 at the outer end slides downward within the limiting groove 17. By setting the counterweight plate 9, the stability of the connecting frame 10 during movement can be ensured. Thus, the connecting frame 10 drives the lifting plate 11 to rise, thereby driving the workpiece to rise synchronously through the rise of the lifting plate 11, driving the lifting motor 15 to rotate in the opposite direction, thereby allowing the lifting plate 11 to fall. In summary, compared with the traditional hydraulic cylinder drive method, the use of meshing belt drive sprocket 4 and chain 8 shows obvious advantages in terms of saving space, reducing costs, improving efficiency, enhancing reliability, and simplifying installation and maintenance.

[0027] Example 3: Based on Example 2, one side of the lifting plate 11 is fixedly connected to the L-shaped plate 18. Two L-shaped plates 18 are provided and symmetrically arranged about the central plane of the lifting plate 11. One L-shaped plate 18 has a threaded rod 19 rotatably sleeved on it, with one end of the threaded rod 19 fixedly connected to the output end of the drive motor 20. The other L-shaped plate 18 has a sliding rod 21 fixedly sleeved on it. The threaded rod 19 is rotatably sleeved in bearing seats on both sides, thus limiting its movement. Support seats are fixedly sleeved on both sides of the sliding rod 21, improving the stability of the sliding rod 21. A clamping motor 22 is provided between the two L-shaped plates 18, electrically connected to an external terminal control device. The clamping motor 22 is fixedly installed on the upper surface of the moving frame 13, and symmetrically fixedly installed on the lower surface of the moving frame 13. A limiting rail 23 is provided, which is slidably connected to the clamping plate 12. The output end of the clamping motor 22 is fixedly connected to one end of the drive shaft 24. A gear 25 is fixedly sleeved on the other end of the drive shaft 24. The clamping motor 22 is electrically connected to an external terminal control device. The output end of the clamping motor 22 passes through the top of the moving frame 13 and is fixedly connected to the drive shaft 24. The gear 25 meshes with one side of the rack 26 on both sides. The rack 26 is fixedly connected to the clamping plate 12. A sliding groove 27 is provided on the other side of the rack 26. The sliding groove 27 is slidably connected to one side of the limiting block 28. The other side of the limiting block 28 is fixedly connected to the side of the moving frame 13. Connecting sleeves 29 are fixedly connected to both sides of the upper surface of the moving frame 13. One of the connecting sleeves 29 is threadedly sleeved with the threaded rod 19, and the other connecting sleeve 29 is slidably sleeved with the sliding rod 21.

[0028] The workpiece is placed on the lifting plate 11, and the clamping motor 22 is started. The clamping motor 22 drives the drive shaft 24, which is fixedly connected to its output end, to rotate. The drive shaft 24 drives the gear 25 to rotate, and the gear 25 meshes with the racks 26 on both sides. The racks 26 then move through the sliding engagement of the slide groove 27 and the limiting block 28. Subsequently, the racks 26 drive the clamping plate 12, which is fixedly connected to it, to move. The two clamping plates 12 move towards each other under the limitation of the limiting rail 23 until the clamping plates 12 clamp and fix the workpiece near the end of the clamping motor 22, thereby improving the stability of the workpiece during the lifting process. After the workpiece is lifted to the appropriate position by the lifting plate 11, the drive motor is started. 20. The drive motor 20 drives the threaded rod 19 fixedly connected to its output end to rotate. The threaded rod 19 is threadedly connected to the connecting sleeve 29 on one side of the upper surface of the moving frame 13, thereby driving the moving frame 13 to move. At the same time, the other connecting sleeve 29 on the upper surface of the moving frame 13 slides under the limit of the slide rod 21, thereby making the moving frame 13 more stable during the movement. As the moving frame 13 moves away from the drive motor 20, the clamping plate 12 drives the workpiece to be output outward until it is output onto the double speed chain track. The clamping motor 22 rotates in the opposite direction and no longer limits the workpiece. Finally, the workpiece is no longer pushed manually, which reduces the workload of the staff.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-speed chain drive lifting mechanism, comprising a fixed base plate (1), characterized in that: A support frame (2) is fixedly connected to the upper surface of the fixed base plate (1). A rotating shaft (3) is rotatably sleeved on the top of the support frame (2). A sprocket (4) is fixedly sleeved on one side of the rotating shaft (3), and a driven meshing wheel (5) is fixedly sleeved on the other side of the rotating shaft (3). The driven meshing wheel (5) meshes with the driving meshing wheel (7) through a meshing belt (6). A chain (8) is engaged on the sprocket (4). One end of the chain (8) is fixedly connected to the counterweight plate (9), and the other end of the chain (8) is fixedly connected to one side of the connecting frame (10). The other side of the connecting frame (10) is fixedly connected to the lifting plate (11). A clamping plate (12) is installed on the upper side of the lifting plate (11), and a movable frame (13) is provided on the upper side of the clamping plate (12).

2. The double-speed chain drive lifting mechanism according to claim 1, characterized in that: One side of the upper surface of the fixed base plate (1) is fixedly connected to the support frame (2), the other side of the upper surface of the fixed base plate (1) is fixedly connected to the frame (14), and one side of the frame (14) is fixedly connected to the lifting motor (15).

3. The double-speed chain drive lifting mechanism according to claim 2, characterized in that: The output end of the lifting motor (15) is fixedly connected to the active meshing wheel (7), and a limit rod (16) is fixedly installed on one side of the support frame (2), and a limit groove (17) is opened on the other side of the support frame (2).

4. The double-speed chain drive lifting mechanism according to claim 3, characterized in that: The limiting groove (17) is slidably connected to the counterweight plate (9), one side of the connecting frame (10) is welded and fixed to the lifting plate (11), and the other side of the connecting frame (10) is slidably sleeved on the limiting rod (16).

5. The double-speed chain drive lifting mechanism according to claim 1, characterized in that: The lifting plate (11) is fixedly connected to the L-shaped plate (18) on one side. There are two L-shaped plates (18) and they are symmetrically arranged about the center plane of the lifting plate (11). One of the L-shaped plates (18) is rotatably fitted with a threaded rod (19). One end of the threaded rod (19) is fixedly connected to the output end of the drive motor (20). The other L-shaped plate (18) is fixedly fitted with a sliding rod (21).

6. The double-speed chain drive lifting mechanism according to claim 5, characterized in that: A clamping motor (22) is provided between the two L-shaped plates (18). The clamping motor (22) is fixedly installed on the upper surface of the moving frame (13). Limiting rails (23) are symmetrically fixedly installed on the lower surface of the moving frame (13). The limiting rails (23) are slidably connected to the clamping plate (12). The output end of the clamping motor (22) is fixedly connected to one end of the drive shaft (24). A gear (25) is fixedly sleeved on the other end of the drive shaft (24).

7. The double-speed chain drive lifting mechanism according to claim 6, characterized in that: The gear (25) meshes with one side of the rack (26) on both sides for transmission. The rack (26) is fixedly connected to the clamping plate (12). A sliding groove (27) is provided on the other side of the rack (26). The sliding groove (27) is slidably connected to one side of the limiting block (28). The other side of the limiting block (28) is fixedly connected to the side of the moving frame (13). Connecting sleeves (29) are fixedly connected to both sides of the upper surface of the moving frame (13). One of the connecting sleeves (29) is threadedly connected to the threaded rod (19), and the other connecting sleeve (29) is slidably connected to the sliding rod (21).

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