Lifting device for speed chain line body

Abstract

The utility model relates to the technical field, in particular to a lifting device for a speed chain line body, which comprises a fixed bottom plate, a threaded rod rotatably mounted on the upper side of the fixed bottom plate, a connecting sleeve sleeved at one end of the threaded rod, a lower moving seat arranged at the bottom of the connecting sleeve, an upper moving seat arranged at the top of the lower moving seat, and a lifting plate slidably connected with the upper side of the upper moving seat. A first connecting plate and a second connecting plate are arranged on the lower side of the lifting plate and rotationally connected with the upper moving seat and the lower moving seat, the upper side of the lifting plate is fixedly connected with a supporting plate, a supporting frame is fixedly connected to the supporting plate, a bearing plate is slidably arranged in the supporting frame, and a buffer is arranged between the bearing plate and the supporting frame. A damper is arranged between the bearing plate and the supporting plate; the lifting plate ascends and descends through synchronous movement of the lower moving seat and the upper moving seat in cooperation with the first connecting plate and the second connecting plate, the lifting efficiency is improved, the weight borne by the bearing plate is reduced through cooperation of the buffer and the damper, and the lifting stability is improved.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a lifting device for a high-speed chain. Background Technology

[0002] Double-speed chain conveyors (also known as double-speed conveyor lines or double-speed chain conveyors) are highly efficient automated conveying equipment widely used in industrial production. Through a special chain structure and drive system, they achieve efficient and stable material transport, making them particularly suitable for production processes requiring precise control of conveying speed and position. Production lines composed of double-speed chain conveyors are often referred to as gravity-flow conveying systems. Double-speed chain conveyors are mainly used for material transport in assembly and processing production lines. Their conveying principle utilizes the speed-increasing function of the double-speed chain to rapidly move the tooling plates supporting the goods, stopping them at corresponding operating positions via stoppers, or completing accumulation, transfer, and line-changing functions through corresponding commands. Lifting devices are required for height adjustment during production and processing.

[0003] In existing technologies, most lifting devices use cylinders for lifting and lowering, which requires a proximity sensor to send a signal, which is then transmitted to an electronic valve next to the cylinder via the main control box to push the cylinder to lift. This cannot achieve fast and precise movement, reducing lifting efficiency. When lifting heavy objects, the weight often causes swaying, which may damage the lifting device and reduce lifting stability. Therefore, we propose a lifting device for high-speed chain conveyors. Utility Model Content

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

[0005] To achieve the above objectives, the present invention provides the following technical solution: a lifting device for a double-speed chain body, comprising: a fixed base plate, characterized in that: a threaded rod is rotatably installed on the upper side of the fixed base plate, a connecting sleeve is threadedly connected to one end of the threaded rod, a lower movable seat is provided at the bottom of the connecting sleeve, both sides of the connecting sleeve are fixedly connected to the lower movable seat through short shafts, an upper movable seat is provided at the top of the lower movable seat, and the upper side of the upper movable seat is slidably connected to a lifting plate;

[0006] The lower side of the lifting plate is provided with a first connecting plate and a second connecting plate. One end of the first connecting plate is rotatably connected to the upper moving seat through a long shaft, and the other end of the first connecting plate is rotatably connected to the support seat through a long shaft. One end of the second connecting plate is rotatably connected to the lower moving seat through a short shaft, and the other end of the second connecting plate is rotatably connected to the support seat through a long shaft. The middle of the first connecting plate and the second connecting plate is rotatably connected through a long shaft.

[0007] The upper surface of the lifting plate is fixedly connected to the lower surface of the support plate. Support frames are fixedly connected to both sides of the upper surface of the support plate. A bearing plate is slidably connected inside the support frame. A buffer is fixedly installed between the bearing plate and the support frame. A damper is fixedly installed between the bearing plate and the support plate.

[0008] Preferably, there are two fixed base plates arranged symmetrically about the center plane of the support plate, and the threaded rod is rotatably sleeved in the limiting seat on both sides, with one end of the threaded rod fixedly connected to the output end of the motor.

[0009] Preferably, guide rails are fixedly connected to both the upper surface of the fixed base plate and the lower surface of the lifting plate, and the lower moving seat and the upper moving seat are slidably connected to the guide rails. Support seats are fixedly installed on one side of the upper surface of the fixed base plate and one side of the lower surface of the lifting plate.

[0010] Preferably, the first connecting plate and the second connecting plate are arranged in a cross pattern, and both the first connecting plate and the second connecting plate are symmetrically arranged about the fixed base plate. The two first connecting plates and the two second connecting plates are fixedly connected by limiting plates.

[0011] Preferably, a limiting rod is fixedly connected between the two support frames, and a spring is sleeved inside the limiting rod. Both ends of the spring are fixedly connected to a sliding sleeve. The sliding sleeve is slidably sleeved on the limiting rod, and a connecting ear is fixedly connected to one side of the sliding sleeve.

[0012] Preferably, the connecting ear is rotatably connected to one end of the connecting rod via a pin, and the other end of the connecting rod is rotatably connected to the fixed ear via a pin. The top of the fixed ear is fixedly connected to the lower surface of the bearing plate, and an anti-slip plate is fixedly connected to the upper surface of the bearing plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The lifting device for the double-speed chain conveyor belt starts the motor through an external terminal control device, drives the threaded rod to rotate, and drives the lower moving seat to move through the threaded engagement with the connecting sleeve. The lower moving seat, in cooperation with the short shaft, the second connecting plate and the long shaft, causes one side of the lifting plate to rise. The other side of the lifting plate is lifted synchronously through the rotational engagement of the long shaft and the first connecting plate under the drive of the lifting movement, thereby improving the lifting efficiency.

[0015] 2. When the load-bearing plate bears weight, the bottom sides of the load-bearing plate will press against the buffer, thus buffering the pressure. At the same time, the load-bearing plate will drive the fixed ear to move downward. The fixed ear, through the rotation of the pin and the connecting rod, will push the connecting ear to move. The connecting ear will then drive the sliding sleeve to move synchronously. The sliding sleeve moves laterally under the limit of the limit rod, so that the two sliding sleeves move towards each other, which in turn compresses the spring to further offset the pressure, reducing the weight on the load-bearing plate. Then, through the cooperation of the damper, the reverse elastic force of the buffer and the spring is offset, thereby improving the stability of lifting. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a top view of the overall structure of this utility model;

[0018] Figure 3 This is a bottom view of the overall structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of this utility model.

[0020] In the diagram: 1. Fixed base plate; 2. Threaded rod; 3. Connecting sleeve; 4. Lower moving seat; 5. Short shaft; 6. Lifting plate; 7. First connecting plate; 8. Second connecting plate; 9. Long shaft; 10. Support seat; 11. Support plate; 12. Support frame; 13. Bearing plate; 14. Buffer; 15. Damper; 16. Limiting seat;

[0021] 17. Motor; 18. Guide rail; 19. Limiting plate; 20. Limiting rod; 21. Spring; 22. Sliding sleeve;

[0022] 23. Connecting ear; 24. Linkage rod; 25. Fixing ear; 26. Anti-slip plate; 27. Upper movable seat. Detailed Implementation

[0023] 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.

[0024] Example 1: Please refer to Figures 1-4This utility model provides a technical solution: a lifting device for a double-speed chain, comprising: a fixed base plate 1, a threaded rod 2 rotatably mounted on the upper side of the fixed base plate 1, a connecting sleeve 3 threadedly connected to one end of the threaded rod 2, a lower movable seat 4 provided at the bottom of the connecting sleeve 3, both sides of the connecting sleeve 3 being fixedly connected to the lower movable seat 4 via short shafts 5, an upper movable seat 27 provided at the top of the lower movable seat 4, the upper side of the upper movable seat 27 being slidably connected to a lifting plate 6, a first connecting plate 7 and a second connecting plate 8 provided on the lower side of the lifting plate 6, one end of the first connecting plate 7 being rotatably connected to the upper movable seat 27 via a long shaft 9, and the other end of the first connecting plate 7 being rotatably connected to the upper movable seat 27 via a long shaft 9. One end of the second connecting plate 8 is rotatably connected to the support base 10 via a long shaft 9. One end of the second connecting plate 8 is rotatably connected to the lower moving base 4 via a short shaft 5. The other end of the second connecting plate 8 is rotatably connected to the support base 10 via a long shaft 9. The middle of the first connecting plate 7 and the second connecting plate 8 is rotatably connected via a long shaft 9. The upper surface of the lifting plate 6 is fixedly connected to the lower surface of the support plate 11. Support frames 12 are fixedly connected to both sides of the upper surface of the support plate 11. A bearing plate 13 is slidably connected inside the support frame 12. A buffer 14 is fixedly installed between the bearing plate 13 and the support frame 12. A damper 15 is fixedly installed between the bearing plate 13 and the support plate 11.

[0025] In practical use, when the operator lifts the double-speed chain body, the threaded rod 2 is driven to rotate. The threaded rod 2 and the connecting sleeve 3 are threaded together, which drives the lower moving seat 4 to move under the connection of the short shaft 5. The lower moving seat 4 moves towards the middle of the first connecting plate 7 and the second connecting plate 8. Under the rotational cooperation of the short shaft 5, the long shaft 9 and the second connecting plate 8, the second connecting plate 8 lifts one side of the lifting plate 6 through the connection of the support seat 10. At the same time, the upper moving seat 27 moves synchronously towards the middle of the first connecting plate 7 and the second connecting plate 8. Under the rotational cooperation of the long shaft 9 and the two ends of the first connecting plate 7, the other side of the lifting plate 6 is lifted synchronously. Then, the lifting plate 6 drives the support plate 11 to move. The support plate 11 then drives the bearing plate 13 to lift through the connection of the support frame 12. When the bearing plate 13 bears the weight, the bearing plate 13 will squeeze the buffers 14 installed on both sides of its bottom for buffering. At the same time, by using the damper 15, the reverse elastic force generated by the buffer 14 is offset, thereby improving the stability of lifting.

[0026] Example 2: Based on Example 1, two fixed base plates 1 are provided and symmetrically arranged about the central plane of the support plate 11. The threaded rod 2 is rotatably sleeved within the limiting seats 16 on both sides. One end of the threaded rod 2 is fixedly connected to the output end of the motor 17. The fixed base plate 1 provides fixed support for the entire device. The two sides of the threaded rod 2 are limited and supported by the limiting seats 16. Both limiting seats 16 are fixedly connected to the fixed base plate 1. The motor 17 is electrically connected to an external terminal control device. Guide rails 18 are fixedly connected to the upper surface of the fixed base plate 1 and the lower surface of the lifting plate 6. The lower moving seat 4 and the upper moving seat 27 are slidably connected to the guide rails 18. Support seats 10 are fixedly installed on one side of the upper surface of plate 1 and one side of the lower surface of lifting plate 6. The stability of the lower moving seat 4 and the upper moving seat 27 during movement is ensured by the setting of guide rail 18. The first connecting plate 7 and the second connecting plate 8 are arranged in a cross shape. The first connecting plate 7 and the second connecting plate 8 are symmetrically arranged about the fixed base plate 1. The two first connecting plates 7 and the two second connecting plates 8 are fixedly connected by limiting plates 19. By fixing limiting plates 19 between the first connecting plates 7 and the second connecting plates 8, the rotational stability of the first connecting plate 7 and the second connecting plate 8 is improved, thereby improving the lifting stability of the entire device.

[0027] The motor 17 is started by an external terminal control device, causing the motor 17 to drive the threaded rod 2 to rotate under the limit of the limit seat 16. Thus, under the threaded connection between the connecting sleeve 3 and the threaded rod 2, the connecting sleeve 3 can be driven to move along the threaded rod 2. When the threaded rod 2 drives the connecting sleeve 3 to move closer to the motor 17, under the connection of the short shaft 5, it drives the lower moving seat 4 to move under the limit of the guide rail 18. Thus, with the short shaft 5 and the long shaft 9 respectively rotating in cooperation with both ends of the second connecting plate 8, the second connecting plate 8, through the connection of the support seat 10, moves one side of the lifting plate 6. The lifting plate 6 is lifted up, and simultaneously moves synchronously towards the middle of the first connecting plate 7 and the second connecting plate 8 under the limit of the guide rail 18 of the upper moving seat 27. The first connecting plate 7 and the second connecting plate 8 rotate through the long shaft 9. With the rotational cooperation between the long shaft 9 and the two ends of the first connecting plate 7, the other side of the lifting plate 6 is lifted synchronously. Then, the lifting plate 6 drives the support plate 11 to move. The support plate 11 then drives the bearing plate 13 to rise through the connection of the support frame 12. When the motor 17 drives the threaded rod 2 to rotate in the opposite direction, the lifting plate 6 can drive the bearing plate 13 to fall, thus improving the lifting efficiency.

[0028] Example 3: Based on Example 2, a limiting rod 20 is fixedly connected between the two support frames 12. A spring 21 is sleeved inside the limiting rod 20. Both ends of the spring 21 are fixedly connected to the sliding sleeve 22. The sliding sleeve 22 is slidably sleeved on the limiting rod 20. A connecting ear 23 is fixedly connected to one side of the sliding sleeve 22. Both ends of the limiting rod 20 are fixedly connected to the bottom of the support frame 12 on both sides of the support plate 11. The limiting rod 20 limits the sliding sleeve 22. The connecting ear 23 is rotatably connected to one end of the connecting rod 24 through a pin. The other end of the connecting rod 24 is rotatably connected to the fixed ear 25 through a pin. The top of the fixed ear 25 is fixedly connected to the lower surface of the bearing plate 13. An anti-slip plate 26 is fixedly connected to the upper surface of the bearing plate 13.

[0029] By providing an anti-slip plate 26 on the upper surface of the support plate 13, items placed on it will not slip, thereby improving the stability of the support plate 13. When the support plate 13 bears weight, the bottom sides of the support plate 13 will press against the buffer 14 to buffer the pressure. At the same time, the support plate 13 will drive the fixed ear 25 to move downward. The fixed ear 25 will push the connecting ear 23 to move through the rotational cooperation of the pin and the connecting rod 24. The connecting ear 23 will drive the sliding sleeve 22 to move synchronously. The sliding sleeve 22 will move laterally under the limit of the limit rod 20, so that the two sliding sleeves 22 move towards each other, thereby compressing the spring 21 to further offset the pressure and reduce the weight on the support plate 13. Then, through the cooperation of the damper 15, the reverse elastic force of the buffer 14 and the spring 21 will be offset, thereby improving the stability of lifting.

[0030] 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 lifting device for a double-speed chain conveyor, comprising a fixed base plate (1), characterized in that: A threaded rod (2) is rotatably installed on the upper side of the fixed base plate (1). A connecting sleeve (3) is threaded onto one end of the threaded rod (2). A lower moving seat (4) is provided at the bottom of the connecting sleeve (3). Both sides of the connecting sleeve (3) are fixedly connected to the lower moving seat (4) through short shafts (5). An upper moving seat (27) is provided at the top of the lower moving seat (4). The upper side of the upper moving seat (27) is slidably connected to the lifting plate (6). The lower side of the lifting plate (6) is provided with a first connecting plate (7) and a second connecting plate (8). One end of the first connecting plate (7) is rotatably connected to the upper moving seat (27) via a long shaft (9), and the other end of the first connecting plate (7) is rotatably connected to the support seat (10) via a long shaft (9). One end of the second connecting plate (8) is rotatably connected to the lower moving seat (4) via a short shaft (5), and the other end of the second connecting plate (8) is rotatably connected to the support seat (10) via a long shaft (9). The middle parts of the first connecting plate (7) and the second connecting plate (8) are rotatably connected via a long shaft (9). The upper surface of the lifting plate (6) is fixedly connected to the lower surface of the support plate (11). The upper surface of the support plate (11) is fixedly connected to both sides of the support frame (12). The support frame (12) is slidably connected to the bearing plate (13). The bearing plate (13) and the support frame (12) are fixedly installed with a buffer (14). The bearing plate (13) and the support plate (11) are fixedly installed with a damper (15).

2. The lifting device for a speed-multiplying chain as described in claim 1, characterized in that: The fixed base plate (1) has two plates and is symmetrically arranged about the center plane of the support plate (11). The threaded rod (2) is rotatably sleeved in the limiting seat (16) on both sides. One end of the threaded rod (2) is fixedly connected to the output end of the motor (17).

3. The lifting device for a speed-multiplying chain as described in claim 2, characterized in that: The upper surface of the fixed base plate (1) and the lower surface of the lifting plate (6) are both fixedly connected with guide rails (18). The lower moving seat (4) and the upper moving seat (27) are both slidably connected to the guide rails (18). Support seats (10) are fixedly installed on one side of the upper surface of the fixed base plate (1) and one side of the lower surface of the lifting plate (6).

4. The lifting device for a speed-multiplying chain as described in claim 1, characterized in that: The first connecting plate (7) and the second connecting plate (8) are arranged in a cross pattern. The first connecting plate (7) and the second connecting plate (8) are symmetrically arranged about the fixed base plate (1). The two first connecting plates (7) and the two second connecting plates (8) are fixedly connected by a limiting plate (19).

5. A lifting device for a speed-multiplying chain as described in claim 1, characterized in that: A limiting rod (20) is fixedly connected between the two support frames (12). A spring (21) is sleeved inside the limiting rod (20). Both ends of the spring (21) are fixedly connected to the sliding sleeve (22). The sliding sleeve (22) is slidably sleeved on the limiting rod (20). A connecting ear (23) is fixedly connected to one side of the sliding sleeve (22).

6. A lifting device for a speed-multiplying chain as described in claim 5, characterized in that: The connecting ear (23) is rotatably connected to one end of the connecting rod (24) via a pin, and the other end of the connecting rod (24) is rotatably connected to the fixed ear (25) via a pin. The top of the fixed ear (25) is fixedly connected to the lower surface of the bearing plate (13), and the upper surface of the bearing plate (13) is fixedly connected to the anti-slip plate (26).

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