Servo backboard elevator

Abstract

The utility model discloses a kind of servo return plate elevators, including rack, rack is provided with lifting trolley, ball screw lifting mechanism, chain transmission mechanism and drum conveying mechanism. Ball screw lifting mechanism is driven by servo motor, lifting trolley is driven along linear sliding rail steady lifting by planetary gear reducer and ball screw pair. Chain transmission mechanism is driven by first motor, provides main conveying power for device, and ensures lifting synchronism by chain synchronous mechanism. Drum conveying mechanism is independently driven by second motor, and specific station can be realized individual control. The utility model integrates lifting and conveying function, compact structure, lifting is stable, transmission is reliable, solve the problem that traditional conveying equipment flexibility is insufficient, single function, especially suitable for the scene that height adjustment and multi-station independent control are needed in automated production line.

Description

Technical Field

[0001] This utility model relates to the field of mechanical conveying equipment technology, specifically to a servo return plate lift that integrates ball screw lifting, chain drive and independent roller drive. Background Technology

[0002] Roller conveyors are common continuous conveying equipment in automated production lines, logistics sorting, and warehousing systems. Traditional roller conveyors typically have a fixed height, making them unsuitable for connecting to different heights and lacking flexibility. Furthermore, some applications require not only horizontal conveying but also lifting capabilities to connect with equipment at different levels. Existing technologies often feature complex structures with poor lifting stability and synchronization control, and typically only possess a single conveying power source, making it difficult to meet the complex process requirements of specific workstations that necessitate independent drive or speed adjustment. Therefore, there is an urgent need for a compact, stable, multi-power drive servo-driven return plate lift. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a servo-driven return plate lift with a reasonable structure, smooth lifting, and dual power transmission capability.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A servo-driven return plate lifting machine includes a frame, on which a lifting trolley, a ball screw lifting mechanism, a chain drive mechanism and a roller conveyor mechanism are provided; The ball screw lifting mechanism includes a ball screw, a ball screw lifting seat, a servo motor, and a planetary gear reducer. The servo motor is connected to the planetary gear reducer, the planetary gear reducer is connected to the ball screw and drives it to rotate, the ball screw is threadedly engaged with the ball screw lifting seat, and the ball screw lifting seat is fixed on the lifting trolley. The chain drive mechanism includes a first motor, a first motor sprocket, a drive chain, and a drive sprocket. The first motor drives the first motor sprocket, and the first motor sprocket drives the drive sprocket through the drive chain. The roller conveying mechanism includes a roller, a second motor, and a second motor sprocket. The second motor drives the second motor sprocket, which in turn drives a sprocket coaxially fixed to the roller via a transmission chain, thereby causing the roller to rotate.

[0005] Furthermore, the lifting trolley is equipped with a side guide plate to guide and limit the movement of the lifting trolley and prevent it from swaying during the lifting process.

[0006] Furthermore, the ball screw lifting mechanism also includes an adjusting plate connected to the ball screw lifting seat; the drive shaft of the chain drive mechanism is supported on the adjusting plate via a first bearing seat. This design associates the support of some transmission components with the lifting mechanism, making the structure more compact.

[0007] Furthermore, the planetary gear reducer drives the ball screw through gears. The use of gear transmission can change the direction of power transmission and the transmission ratio can be adjusted as needed.

[0008] Furthermore, the lifting trolley is movably connected to the frame via a linear slide rail, which ensures the smoothness and high precision of the lifting trolley's movement.

[0009] Furthermore, the chain drive mechanism also includes a drive shaft, a drive wheel, and a second bearing housing. The two ends of the drive shaft are supported by a first bearing housing and a second bearing housing, respectively. The drive sprocket and the drive wheel are fixedly mounted on the drive shaft. As the core component for power transmission, the drive shaft's end-support structure ensures operational stability.

[0010] Furthermore, it also includes a chain-type synchronization mechanism, which comprises a balance sprocket, a sprocket shaft, a first bearing, and a first retaining ring. The balance sprocket is mounted on the sprocket shaft via the first bearing and is connected to the drive wheel via a transmission chain. This synchronization mechanism ensures force balance during lifting and lowering, further improving stability.

[0011] Furthermore, it also includes a support roller, a roller shaft, a second retaining ring, a tensioning wheel shaft, a second bearing, and a belt driven pulley. The support roller is mounted on the roller shaft and is used to support and transport goods. The tensioning wheel shaft is used to tension the transmission chain. The belt driven pulley can serve as an interface for other transmission methods.

[0012] Furthermore, the roller conveyor mechanism also includes a roller line side guide rail and a third bearing housing. The second motor is mounted via a motor frame, and the roller is mounted on the frame via the third bearing housing. Compared with existing... Compared with other technologies, the advantages of this utility model are: 1. Functional integration: The lifting and conveying functions are integrated into one unit, and through an independent roller drive mechanism, independent operation of specific workstations can be achieved without stopping the main conveyor line, which greatly improves the flexibility of the production line.

[0013] 2. Smooth and precise lifting: The lifting is achieved by using a servo motor to drive the ball screw, combined with linear slide rails and side guide plates, ensuring a smooth, precise, and wobbly lifting process.

[0014] 3. Good synchronization: By setting up a chain synchronization mechanism, the chain drive is used to force synchronization, which effectively prevents the tilting problem caused by uneven load during the lifting process of the lifting trolley, and ensures the reliability of equipment operation.

[0015] 4. Compact structure: The various mechanisms are rationally arranged on the frame, with high space utilization and a compact and rigid overall structure. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a partial structural diagram of an embodiment of the present utility model (mainly showing the bottom tensioning and support components); Figure 2 This is a partial structural diagram of an embodiment of the present utility model (mainly showing the synchronization mechanism and transmission relationship). Figure 3 This is a front view of the overall structure of an embodiment of the present utility model (mainly showing the lifting, main transmission, and roller drive mechanisms). In the diagram: 1. Lifting trolley; 2. Side guide plate; 3. Balance lifting screw; 4. Ball screw lifting seat; 5. Ball screw; 6. Adjusting plate; 7. First bearing seat; 8. Servo motor; 9. Planetary gear reducer; 10. Gear; 11. Linear slide rail; 12. Transmission wheel; 13. Positioning sleeve; 14. Transmission shaft; 15. Bracket; 16. Transmission sprocket; 17. Second bearing seat; 18. First motor; 19. First... 20. Motor sprocket; 21. Drive chain; 22. Frame; 23. Balance sprocket; 24. Sprocket shaft; 25. First bearing; 26. First retaining ring; 27. Support roller; 28. Support roller shaft; 29. ​​Second retaining ring; 30. Tensioner shaft; 31. Second bearing; 32. Belt driven pulley; 33. Roller line side guide rail; 34. Second motor; 35. Second motor sprocket; 36. Motor frame; 37. Roller; 38. Third bearing housing. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] See Figures 1 to 3The servo-driven return plate lifting machine of this utility model has a frame 21 as its main body. A linear slide rail 11 is installed on the frame 21, and the lifting trolley 1 is connected to the frame 21 through the linear slide rail 11, allowing it to move smoothly in the vertical direction. Side guide plates 2 are installed on both sides of the lifting trolley 1 to further ensure the linearity of its movement.

[0019] The ball screw lifting mechanism is the core component for achieving precise lifting. A servo motor 8 is directly connected to a planetary gear reducer 9. The output of the planetary gear reducer 9 meshes with the ball screw 5 via a gear 10, driving the ball screw 5 to rotate. The ball screw 5 and the ball screw lifting seat 4 form a helical pair, converting rotary motion into linear motion. The ball screw lifting seat 4 is fixed to the lifting trolley 1, thereby driving the entire lifting trolley 1 to rise and fall.

[0020] A chain drive mechanism is used to provide horizontal traction. A first motor 18 drives a first motor sprocket 19 to rotate, transmitting power to a drive sprocket 16 via a drive chain 20. The drive sprocket 16 is fixed to a drive shaft 14, which is stably supported on an adjusting plate 6 and a frame 21 by a first bearing housing 7 and a second bearing housing 17. A drive wheel 12 is also fixed to the drive shaft 14.

[0021] To ensure the synchronization and smoothness of lifting, a chain-type synchronization mechanism is installed. The balance sprocket 22 is mounted on the sprocket shaft 23 via the first bearing 24 and is connected to the drive wheel 12 on the drive shaft 14 via another drive chain. When the lifting trolley 1 moves, the synchronization mechanism can balance the forces on both sides.

[0022] The roller conveyor mechanism is mounted on the lifting trolley 1 and is used to receive and deliver materials. The second motor 33 drives the roller 36 to rotate via the second motor sprocket 34 and chain. The roller 36 is mounted on the lifting trolley 1 via the third bearing seat 37, and its side is provided with roller line side guide rails 32 to guide materials. The second motor 33 is fixed by the motor frame 35.

[0023] In addition, the device is equipped with a tensioning and support assembly consisting of a support roller 26 and a tensioning shaft 29, which is used to maintain the appropriate tension and stable operation of the transmission chain 20. Working principle: When materials need to be lifted to a specified height, the servo motor 8 starts, driving the lifting trolley 1 to precisely rise or fall along the linear slide rail 11 via a ball screw lifting mechanism. After reaching the target position, the second motor 33 of the roller conveyor mechanism starts, driving the roller 36 to rotate, sending the material off the lifting trolley 1 or receiving material from the outside. Throughout the process, the chain drive mechanism can provide power to other parts according to the overall layout requirements. If the roller 36 station needs to be controlled independently, the second motor 33 can be started or stopped independently.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A servo-driven return plate lift, comprising a frame (21), characterized in that, The frame (21) is equipped with a lifting trolley (1), a ball screw lifting mechanism, a chain drive mechanism and a roller conveying mechanism; The ball screw lifting mechanism includes a ball screw (5), a ball screw lifting seat (4), a servo motor (8), and a planetary gear reducer (9). The servo motor (8) is connected to the planetary gear reducer (9), the planetary gear reducer (9) is connected to the ball screw (5) and drives it to rotate, the ball screw (5) is threadedly engaged with the ball screw lifting seat (4), and the ball screw lifting seat (4) is fixed on the lifting trolley (1). The chain drive mechanism includes a first motor (18), a first motor sprocket (19), a drive chain (20) and a drive sprocket (16). The first motor (18) drives the first motor sprocket (19), and the first motor sprocket (19) drives the drive sprocket (16) through the drive chain (20). The roller conveying mechanism includes a roller (36), a second motor (33), and a second motor sprocket (34). The second motor (33) drives the second motor sprocket (34), and the second motor sprocket (34) drives a sprocket coaxially fixed with the roller (36) through a transmission chain, thereby driving the roller (36) to rotate.

2. The servo-driven return plate lift according to claim 1, characterized in that, The lifting trolley (1) is equipped with a side guide plate (2).

3. The servo-driven return plate lift according to claim 1, characterized in that, The ball screw lifting mechanism also includes an adjusting plate (6), which is connected to the ball screw lifting seat (4); the transmission shaft (14) of the chain transmission mechanism is supported on the adjusting plate (6) through the first bearing seat (7).

4. The servo-driven return plate lift according to claim 3, characterized in that, The planetary gear reducer (9) drives the ball screw (5) through the gear (10).

5. The servo-driven return plate lifting machine according to claim 1, characterized in that, The lifting trolley (1) is movably connected to the frame (21) via a linear slide rail (11).

6. The servo-driven return plate lift according to claim 3, characterized in that, The chain drive mechanism also includes a drive shaft (14), a drive wheel (12), and a second bearing seat (17). The two ends of the drive shaft (14) are supported by the first bearing seat (7) and the second bearing seat (17), respectively. The drive sprocket (16) and the drive wheel (12) are fixedly installed on the drive shaft (14).

7. The servo-driven return plate lift according to claim 6, characterized in that, It also includes a chain-type synchronization mechanism, which includes a balance sprocket (22), a sprocket shaft (23), a first bearing (24) and a first retaining ring (25). The balance sprocket (22) is mounted on the sprocket shaft (23) through the first bearing (24) and is connected to the transmission wheel (12) through a transmission chain.

8. The servo-driven return plate lift according to claim 1, characterized in that, It also includes a support roller (26), a roller shaft (27), a second retaining ring (28), a tensioning wheel shaft (29), a second bearing (30), and a belt driven pulley (31). The support roller (26) is mounted on the roller shaft (27), the tensioning wheel shaft (29) is used to tension the transmission chain, and the belt driven pulley (31) is used for belt drive.

9. The servo-driven return plate lift according to claim 1, characterized in that, The roller conveying mechanism also includes a roller line side guide rail (32) and a third bearing seat (37), the second motor (33) is mounted on a motor frame (35), and the roller (36) is mounted on a frame (21) via the third bearing seat (37).

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