Chain conveyor capable of preventing chain from falling off

Abstract

The utility model discloses a chain conveyor capable of preventing a chain from falling off, and particularly relates to the technical field of chain conveyors, which comprises a working table, a motor is fixedly connected to the outer side of the working table, a driving shaft is coaxially connected to the output end of the motor, a driven shaft is movably connected to one side of the working table, and two transmission gears are fixedly connected to the outer side of each of the driving shaft and the driven shaft. Chain wheels are movably connected to the outer sides of the transmission gears, two chains are movably connected to the outer sides of the chain wheels, and a chain tightening mechanism is fixedly connected to the bottom of the workbench; the chain tightening mechanism comprises a fixing frame, one side of the fixing frame is in threaded connection with the outer side of the workbench, and a cross beam is fixedly connected to the bottom of the fixing frame. By arranging the chain tightening mechanism, the bottoms of the two chains can be supported in an auxiliary mode, the stability of the two chains is kept in the transmission process, meanwhile, when the chains are loosened in the using process, the chains can be extruded to a certain degree, and the good transmission efficiency of the chains can be kept.

Description

Technical Field

[0001] This utility model relates to the field of chain conveyor technology, and more specifically, to a chain conveyor with anti-chain derailment function. Background Technology

[0002] Chains are generally metal links or rings, mostly used for mechanical transmission, traction, and as chain-like objects to obstruct traffic passages (such as in streets and at the entrances of rivers or harbors). They are also used for mechanical transmission and are commonly used in conveyors when transporting materials.

[0003] Existing anti-chain-derailment functions prevent the chain from slipping off by clamping it, but excessive friction can also affect the chain's operation.

[0004] A search revealed a Chinese patent application (CN202320697202.0) for a chain conveyor with anti-chain-derailment function. This utility model, by setting a limiting component, can prevent the chain conveyor belt from deviating when driving it, thereby preventing the chain conveyor belt from detaching. By setting a support mechanism, it can ensure the support chain is supported and limited. By setting a buffer component, it can provide lateral buffering for the support mechanism, thereby ensuring the stability of the chain conveyor belt.

[0005] However, in actual use, the chain conveyor may experience loosening of the meshing between the chain and the two sprockets during long-term use. While the limiting device can prevent the chain from disengaging from the sprockets, it cannot effectively adjust the tightness of the meshing between the chain and the gears. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a chain conveyor with anti-derailment function to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A chain conveyor with anti-derailment features a worktable. A motor is fixedly connected to the outside of the worktable, and a drive shaft is coaxially connected to the output end of the motor. A driven shaft is movably connected to one side of the worktable. Two transmission gears are fixedly connected to the outside of both the drive shaft and the driven shaft. A sprocket is movably connected to the outside of each of the transmission gears. Two chains are movably connected to the outside of each of the sprockets. A chain tensioning mechanism is fixedly connected to the bottom of the worktable. The chain tensioning mechanism includes a fixed frame. One side of the fixed frame is threadedly connected to the outside of the worktable. A crossbeam is fixedly connected to the bottom of the fixed frame. Two telescopic rods are installed inside the crossbeam. A push plate is fixedly connected to the top of the two telescopic rods. Fixed rods are threadedly connected to both ends of the push plate. Two connecting seats are fixedly connected to one side of each of the two fixed rods. Auxiliary sprockets are movably connected to the inside of each of the connecting seats. The auxiliary sprockets are symmetrically arranged at both ends of the push plate.

[0009] By adopting the above technical solution: the two telescopic rods push the corresponding two connecting seats upward, so that the corresponding auxiliary sprockets mesh with the bottom of the two chains to assist rotation. When the chain becomes loose, the bottom of the chain can be supported upward to keep the meshing between the chain and the corresponding two sprockets tight, so that the chain maintains good transmission efficiency.

[0010] As a further description of the above technical solution: both sides of the workbench are movably connected to pull plates, the bottom of each of the two pull plates is fixedly connected to two sliders, both sides of each of the two pull plates are fixedly connected to two buttons, one side of each of the two pull plates is fixedly connected to a handle, and the inside of each of the two pull plates is fixedly connected to a pull rod.

[0011] By adopting the above technical solution, the corresponding pull plates can be pulled out from both sides of the workbench by pulling the handle, which facilitates the inspection and maintenance of the connection between the two chains and sprockets.

[0012] As a further description of the above technical solution: both ends of the two pull rods are fixedly connected to a fixed seat, and multiple slide rods are movably connected inside the two fixed seats. Springs are movably connected to the outside of the multiple slide rods. A rotating block is fixedly connected to one end of the multiple slide rods. Two auxiliary wheels are provided inside the two fixed seats, and the multiple auxiliary wheels are symmetrically arranged inside the two auxiliary wheels.

[0013] By adopting the above technical solution, auxiliary support can be provided at the meshing connection between the chain and the sprocket, so that the chain can stably mesh and transmit power with the sprocket.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] By setting up a chain tensioning mechanism, compared with the existing technology, the bottom of the two chains can be provided with auxiliary support, so that the two chains can maintain the stability of the chains during transmission. At the same time, if the chains become loose during use, the chains can be squeezed to a certain extent, so that the chains can maintain good transmission efficiency.

[0016] By incorporating buttons, levers, mounting bases, slides, springs, swivel blocks, and auxiliary wheels, this technology guides the chain-sprocket meshing point compared to existing technologies, ensuring stable chain engagement and preventing the chain from slipping off the sprocket. This improves the stability of the chain drive and prevents chain slippage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the rear structure of this utility model.

[0019] Figure 3 This is a partial schematic diagram of the workbench connection point of this utility model.

[0020] Figure 4 This is a partial schematic diagram of the pull plate connection of this utility model.

[0021] Figure 5 This is a schematic diagram of the chain adjustment mechanism of this utility model.

[0022] Figure 6 For the present utility model Figure 4 A schematic diagram of the structure of A in the middle.

[0023] The attached diagram is labeled as follows: 1. Workbench; 2. Motor; 3. Drive shaft; 4. Driven shaft; 5. Transmission gear; 6. Sprocket; 7. Chain; 8. Fixing frame; 9. Crossbeam; 10. Telescopic rod; 11. Push plate; 12. Fixing rod; 13. Connecting seat; 14. Auxiliary sprocket; 15. Pull plate; 16. Slider; 17. Button; 18. Handle; 19. Pull rod; 20. Fixing seat; 21. Slide rod; 22. Spring; 23. Rotating block; 24. Auxiliary wheel. Detailed Implementation

[0024] 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.

[0025] This application discloses an anti-chain derailment chain conveyor, including a workbench 1. A motor 2 is fixedly connected to the outside of the workbench 1. A drive shaft 3 is coaxially connected to the output end of the motor 2. A driven shaft 4 is movably connected to one side of the workbench 1. Two transmission gears 5 are fixedly connected to the outside of both the drive shaft 3 and the driven shaft 4. Sprockets 6 are movably connected to the outside of each of the multiple transmission gears 5. Two chains 7 are movably connected to the outside of each of the multiple sprockets 6. A chain tensioning mechanism is fixedly connected to the bottom of the workbench 1. The chain tensioning mechanism includes a fixed frame 8. One side of the fixed frame 8 is threadedly connected to the outside of the workbench 1. A crossbeam 9 is fixedly connected to the bottom of the fixed frame 8. The crossbeam 9 contains... Two telescopic rods 10 are provided, and push plates 11 are fixedly connected to the top of the two telescopic rods 10. Fixed rods 12 are threaded to both ends of the push plates 11. Two connecting seats 13 are fixedly connected to one side of each of the two fixed rods 12. Auxiliary sprockets 14 are movably connected inside the multiple connecting seats 13. The multiple auxiliary sprockets 14 are symmetrically arranged at both ends of the push plates 11. When the chain 7 becomes loose during operation, the two telescopic rods 10 can push the corresponding connecting seats 13 and auxiliary sprockets 14 to support the bottom of the chain 7, so that the chain 7 can maintain a stable connection with the two sprockets 6 and maintain good connection stability.

[0026] Reference Figure 4 As shown, pull plates 15 are movably connected to both sides of the workbench 1. Two sliders 16 are fixedly connected to the bottom of each pull plate 15. Two buttons 17 are fixedly connected to both sides of each pull plate 15. A handle 18 is fixedly connected to one side of each pull plate 15. A pull rod 19 is fixedly connected inside each pull plate 15. Pulling the handle 18 can make the pull plate 15 slide on both sides of the workbench 1 via the two sliders 16 at the bottom. The position of the pull plate 15 is fixed by the two buttons 17, which facilitates the inspection of the connection between the two chains 7 and the sprocket 6.

[0027] Reference Figure 6 As shown, both ends of the two pull rods 19 are fixedly connected to the fixed bases 20. Multiple slide rods 21 are movably connected inside the two fixed bases 20. Springs 22 are movably connected to the outside of the multiple slide rods 21. A rotating block 23 is fixedly connected to one end of the multiple slide rods 21. Two auxiliary wheels 24 are provided inside the two fixed bases 20. The multiple auxiliary wheels 24 are symmetrically arranged inside the two auxiliary wheels 24. The rotating block 23 and the auxiliary wheel 24 are pushed by the corresponding two springs 22 to support the meshing connection between the chain 7 and the sprocket 6, so that the chain 7 is less likely to derail during transmission.

[0028] The working principle of this utility model is as follows: During the operation of the chain conveyor, the motor 2 drives the drive shaft 3 to rotate, the drive shaft 3 drives two transmission gears 5 to rotate, the two transmission gears 5 drive two sprockets 6 to rotate, and the two sprockets 6 mesh with the chain 7, causing the chain 7 and the driven shaft 4 on one side to rotate. During the rotation of the two chains 7, the two telescopic rods 10 inside the crossbeam 9 push the push plate 11 to move upward. The two push plates 11 drive the fixed rods 12 at both ends and the connecting seats 13 to move upward. The multiple connecting seats 13 mesh with the bottom of the two chains 7 through the internal auxiliary sprockets 14, so that the middle ends of the two chains 7 can rotate. Supported, during prolonged use of the two chains 7, multiple auxiliary sprockets 14 can push the bottom of the two chains 7 upwards, ensuring that the chains 7 and multiple sprockets 6 maintain tight engagement during the transmission of the chains 7. Then, during the operation of the two chains 7, the two pull plates 15 drive the two fixed seats 20 at both ends of the pull rod 19. When the two auxiliary wheels 24 inside the fixed seats 20 are squeezed by the offset chains 7, multiple springs 22 can push the corresponding rotating blocks 23, so that the multiple auxiliary wheels 24 guide the two sides of the chains 7, allowing the two chains 7 to transmit power stably.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A chain conveyor with anti-derailment function, comprising a worktable (1), characterized in that: A motor (2) is fixedly connected to the outside of the workbench (1). A drive shaft (3) is coaxially connected to the output end of the motor (2). A driven shaft (4) is movably connected to one side of the workbench (1). Two transmission gears (5) are fixedly connected to the outside of both the drive shaft (3) and the driven shaft (4). A sprocket (6) is movably connected to the outside of each of the multiple transmission gears (5). Two chains (7) are movably connected to the outside of each of the multiple sprockets (6). A chain tensioning mechanism is fixedly connected to the bottom of the workbench (1). The chain tensioning mechanism includes a fixed frame (8), one side of which is threaded to the outside of the workbench (1). A crossbeam (9) is fixedly connected to the bottom of the fixed frame (8). Two telescopic rods (10) are provided inside the crossbeam (9). A push plate (11) is fixedly connected to the top of the two telescopic rods (10). Fixed rods (12) are threaded to both ends of the push plate (11). Two connecting seats (13) are fixedly connected to one side of each of the two fixed rods (12).

2. The chain conveyor for preventing chain derailment according to claim 1, characterized in that: Each of the multiple connecting seats (13) is movably connected to an auxiliary sprocket (14), and the multiple auxiliary sprockets (14) are symmetrically arranged at both ends of the push plate (11).

3. The chain conveyor for preventing chain derailment according to claim 1, characterized in that: The workbench (1) is movably connected to both sides of a pull plate (15), and two sliders (16) are fixedly connected to the bottom of each pull plate (15).

4. The chain conveyor for preventing chain derailment according to claim 3, characterized in that: Two buttons (17) are fixedly connected to both sides of the two pull plates (15), a handle (18) is fixedly connected to one side of the two pull plates (15), and a pull rod (19) is fixedly connected inside the two pull plates (15).

5. The chain conveyor for preventing chain derailment according to claim 4, characterized in that: Both ends of the two pull rods (19) are fixedly connected to the fixed bases (20), and multiple sliding rods (21) are movably connected inside the two fixed bases (20).

6. The chain conveyor for preventing chain derailment according to claim 5, characterized in that: A spring (22) is movably connected to the outside of each of the multiple slide rods (21), and a rotating block (23) is fixedly connected to one end of each of the multiple slide rods (21).

7. The chain conveyor for preventing chain derailment according to claim 5, characterized in that: Each of the two fixed seats (20) is provided with two auxiliary wheels (24), and multiple auxiliary wheels (24) are symmetrically arranged inside the two auxiliary wheels (24).

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