A sprocket assembly with replaceable teeth

Abstract

The utility model relates to chain wheel assembly technical field, concretely is a kind of sprocket replaceable chain wheel assembly, including mounting plate, the surface of mounting plate is rotatably connected with pivot, the surface of pivot is sleeved with chain wheel body, the surface of two chain wheel bodies is rotatably connected with same chain.The utility model, by setting up easy dismounting device through movable rod inside the movement of moving groove, inside the sliding of connecting frame is driven simultaneously with the movement, so that the inside of the movable rod is removed from the card slot, make its pivot and chain wheel quick dismounting, conversely can be driven by the action of spring and its movable rod is clamped in the inside of card slot and its pivot and chain wheel clamping fixation, the fixation or separation of gear and pivot can be completed by manual operation or simple tool, if chain wheel sudden failure is encountered in production line, component replacement can be quickly completed, reduce the loss caused by shutdown, reduce the relevance interference in maintenance process, make the maintenance of batch equipment more efficient.

Description

Technical Field

[0001] This utility model relates to the field of sprocket assembly technology, and in particular to a sprocket assembly with replaceable teeth. Background Technology

[0002] In the process of underground coal mining, the sprocket assembly plays the role of power transmission. In addition to static loads, it is also frequently subjected to pulsating loads and impact loads during operation. Especially under harsh working conditions, the sprocket assembly has a higher probability of damage than other components, and the sprocket assembly has the problem of short service life of the gear teeth.

[0003] Existing replaceable sprocket assemblies often have fixed connection methods between the sprocket assembly and the shaft, with some using key connections, interference fits, or welding. When it is necessary to inspect, replace, or adjust the position of the sprocket on the shaft, various specialized tools are often required. The operation is time-consuming and laborious, and improper operation may even damage the shaft or sprocket base. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that in the existing technology, the connection methods between some sprocket assemblies and shafts are mostly fixed, and some use key connections, interference fits or welding, etc. When it is necessary to repair, replace or adjust the position of the sprocket on the shaft, it is often necessary to use a variety of professional tools. The operation process is time-consuming and laborious, and may even cause damage to the shaft or sprocket base due to improper operation. Therefore, a replaceable tooth sprocket assembly is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a replaceable sprocket assembly, including a mounting plate, a rotating shaft rotatably connected to the surface of the mounting plate, a sprocket body sleeved on the surface of the rotating shaft, two sprocket bodies rotatably connected to the same chain, an easy-to-disassemble device provided on the surface of the sprocket body, the easy-to-disassemble device including a limiting ring, the limiting ring being fixedly connected to the surface of the rotating shaft, the rotating shaft having two rotatably connected to the surface of the mounting plate, the limiting ring having a slot on its surface, the slot having a plurality of equally spaced slots distributed on the surface of the limiting ring, and a locking rod engaging inside the slot.

[0006] Furthermore, a connecting frame is fixedly connected to the surface of the sprocket body, and a spring is fixedly connected to one side of the inner side of the connecting frame. The connecting frame has three parts, all of which are disposed on the surface of the sprocket body.

[0007] Furthermore, the lever is fixedly connected to the side of the spring away from the connecting frame, and the lever is movably connected to the inside of the connecting frame.

[0008] Furthermore, a movable groove is provided at the top of the connecting frame, and a movable rod is movably connected inside the movable groove. The bottom of the movable rod is fixedly connected to the top of the locking rod.

[0009] Furthermore, the surface of the mounting plate is provided with a support device, the support device including a bidirectional threaded rod disposed inside the mounting plate.

[0010] Furthermore, a drive motor is provided on one side of the bidirectional threaded rod, the output end of the drive motor is fixedly connected to one side of the bidirectional threaded rod, and a moving block is threadedly connected to the surface of the bidirectional threaded rod, the moving block being movably connected to the inside of the mounting plate.

[0011] Furthermore, an electric telescopic rod is fixedly connected to the inner surface of the movable block, a connecting block is fixedly connected to the side of the electric telescopic rod away from the movable block, a support plate is fixedly connected to the surface of the connecting block, and the support plate is fixedly connected to the side of the connecting block away from the electric telescopic rod.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, by setting an easy-disassembly device, when disassembling the sprocket, the movable rod can first move inside the moving groove. While moving, it will drive the locking rod to slide inside the connecting frame, thereby moving the locking rod out from the inside of the locking groove, so that the shaft and sprocket can be quickly disassembled. Conversely, the spring can drive the locking rod to engage inside the locking groove, thereby locking and fixing the shaft and sprocket. The fixing or separation of the gear and shaft can be completed by manual operation or simple tools. If a sudden sprocket failure occurs in the production line, the component can be replaced quickly, which will greatly shorten the equipment downtime and reduce the production loss caused by the downtime. For equipment with multiple sets of sprockets sharing a shaft, the easy-disassembly device can realize the disassembly of a certain set of sprockets without having to remove the shaft or other sprockets as a whole, reducing the correlation interference in the maintenance process and making the maintenance of batch equipment more efficient.

[0013] 2. In this utility model, by setting up a support device, after the sprocket is disassembled, the output end of the drive motor drives its bidirectional threaded rod to rotate. During the operation, it drives two moving blocks to move simultaneously. The electric telescopic rod then drives the connecting block and support plate to extend and retract to a suitable position, thereby supporting the internal structure of the chain. For vertically driven or inclined chains, detachment may cause the load to suddenly drop, leading to a safety accident. When the sprocket is disassembled, the support device can provide support between the chains, maintaining the chain tension and original trajectory. When disassembling the conveyor sprocket, the support device can support the part of the chain that has detached from the sprocket, preventing it from sagging due to its own weight, ensuring stable chain pitch, reducing friction with surrounding equipment, and providing a stable benchmark for chain alignment when installing a new sprocket, thus increasing the efficiency of the device. Attached Figure Description

[0014] Figure 1 This utility model provides a schematic diagram of the overall device structure of a replaceable tooth sprocket assembly; Figure 2 This utility model provides a schematic diagram of an easily detachable device for a replaceable tooth sprocket assembly. Figure 3 This utility model proposes a replaceable tooth sprocket assembly. Figure 2 Enlarged view of point A in the image; Figure 4 A schematic diagram of a support device for a replaceable tooth sprocket assembly is provided for this utility model. Figure 5 This utility model proposes a replaceable tooth sprocket assembly. Figure 1 Enlarged view of section B in the middle.

[0015] Legend: 1. Mounting plate; 2. Shaft; 3. Sprocket body; 4. Chain; 5. Easy-to-disassemble device; 51. Limiting ring; 52. Slot; 53. Connecting frame; 54. Spring; 55. Moving slot; 56. Locking rod; 57. Movable rod; 6. Support device; 61. Two-way threaded rod; 62. Drive motor; 63. Moving block; 64. Electric telescopic rod; 65. Connecting block; 66. Support plate. Detailed Implementation

[0016] Please see Figure 1-5 This utility model provides a technical solution: a replaceable sprocket assembly, including a mounting plate 1, a rotating shaft 2 rotatably connected to the surface of the mounting plate 1, a sprocket body 3 sleeved on the surface of the rotating shaft 2, the same chain 4 rotatably connected to the surfaces of the two sprocket bodies 3, and an easy-to-disassemble device 5 provided on the surface of the sprocket body 3.

[0017] The following section will explain the specific design and function of its easily detachable device 5 and support device 6.

[0018] In this embodiment: the easily detachable device 5 includes a limiting ring 51, which is fixedly connected to the surface of the rotating shaft 2. The surface of the limiting ring 51 is provided with a slot 52, and a locking rod 56 is engaged inside the slot 52.

[0019] Specifically, a connecting frame 53 is fixedly connected to the surface of the sprocket body 3, and a spring 54 is fixedly connected to one side of the inside of the connecting frame 53.

[0020] Specifically, the lever 56 is fixedly connected to the side of the spring 54 away from the connecting frame 53, and the lever 56 is movably connected to the inside of the connecting frame 53.

[0021] Specifically, the top of the connecting frame 53 is provided with a movable groove 55, and a movable rod 57 is movably connected inside the movable groove 55. The bottom of the movable rod 57 is fixedly connected to the top of the locking rod 56.

[0022] The effect achieved by the above components is as follows: by setting up an easy-to-disassemble device 5, the movable rod 57 moves inside the moving groove 55. While moving, it will drive the locking rod 56 to slide inside the connecting frame 53, thereby moving the locking rod 56 out from the groove 52, so that the rotating shaft 2 can be quickly disassembled from the sprocket. Conversely, the spring 54 can drive the locking rod 56 to engage inside the groove 52 to lock and fix the rotating shaft 2 to the sprocket, thus improving the ease of use of the device.

[0023] Specifically, a support device 6 is provided on the surface of the mounting plate 1. The support device 6 includes a bidirectional threaded rod 61, which is disposed inside the mounting plate 1.

[0024] Specifically, a drive motor 62 is provided on one side of the bidirectional threaded rod 61, and the output end of the drive motor 62 is fixedly connected to one side of the bidirectional threaded rod 61. A moving block 63 is threadedly connected to the surface of the bidirectional threaded rod 61.

[0025] Specifically, an electric telescopic rod 64 is fixedly connected to the inner surface of the movable block 63, a connecting block 65 is fixedly connected to the side of the electric telescopic rod 64 away from the movable block 63, and a support plate 66 is fixedly connected to the surface of the connecting block 65.

[0026] The effect achieved by the above components is as follows: by setting the support device 6, the output end of the drive motor 62 drives its bidirectional threaded rod 61 to rotate. During the operation, it will drive the two moving blocks 63 to move simultaneously. Then, by using the electric telescopic rod 64, it drives its connecting block 65 and support plate 66 to extend and retract to a suitable position, thereby increasing the stability of the device.

[0027] Working principle: When disassembling the sprocket using the easy-disassembly device 5, the movable rod 57 moves within the moving groove 55. Simultaneously, the moving rod 56 slides within the connecting frame 53, causing it to move out of the slot 52, quickly disassembling the shaft 2 from the sprocket. Conversely, the spring 54 engages the locking rod 56 within the slot 52, securing the shaft 2 to the sprocket. The gear and shaft 2 can be fixed or separated manually or with simple tools. In case of a sudden sprocket failure on the production line, component replacement can be completed quickly, significantly reducing equipment downtime and production losses. For equipment with multiple sprockets sharing a single shaft 2, the easy-disassembly device 5 allows for the individual disassembly of a single sprocket without the need to remove the entire shaft 2 or other sprockets, reducing interference during maintenance and making the maintenance of batch equipment more efficient. Then, by setting up the support device 6, after the sprocket is disassembled, the output end of the drive motor 62 drives the bidirectional threaded rod 61 to rotate. During the operation, it drives the two moving blocks 63 to move simultaneously. The electric telescopic rod 64 drives the connecting block 65 and the support plate 66 to extend and retract to the appropriate position, thereby supporting the internal structure of the chain 4. For vertically driven or inclined chains 4, detachment may cause the load to suddenly drop, leading to a safety accident. When the sprocket is disassembled, the support device 6 can form a support between the chains 4, maintaining the tension and original trajectory of the chain 4. When disassembling the conveyor sprocket, the support device 6 can support the part of the chain 4 that has detached from the sprocket, preventing it from sagging due to its own weight, ensuring the stability of the chain pitch, reducing friction with surrounding equipment, and providing a stable reference for the alignment of the chain 4 when installing a new sprocket, thus increasing the efficiency of the device.

Claims

1. A replaceable toothed sprocket assembly, comprising a mounting plate (1), characterized in that: The mounting plate (1) is rotatably connected to a rotating shaft (2), and a sprocket body (3) is sleeved on the surface of the rotating shaft (2). The surfaces of the two sprocket bodies (3) are rotatably connected to the same chain (4). The surface of the sprocket body (3) is provided with an easy-to-disassemble device (5). The easy-to-disassemble device (5) includes a limit ring (51). The limit ring (51) is fixedly connected to the surface of the rotating shaft (2). The surface of the limit ring (51) is provided with a slot (52). A locking rod (56) is locked inside the slot (52).

2. The replaceable tooth sprocket assembly according to claim 1, characterized in that: A connecting frame (53) is fixedly connected to the surface of the sprocket body (3), and a spring (54) is fixedly connected to one side of the inside of the connecting frame (53).

3. A replaceable tooth sprocket assembly according to claim 2, characterized in that: The lever (56) is fixedly connected to the side of the spring (54) away from the connecting frame (53), and the lever (56) is movably connected to the inside of the connecting frame (53).

4. A replaceable tooth sprocket assembly according to claim 2, characterized in that: The top of the connecting frame (53) is provided with a movable groove (55), and a movable rod (57) is movably connected inside the movable groove (55). The bottom of the movable rod (57) is fixedly connected to the top of the clamp rod (56).

5. A replaceable tooth sprocket assembly according to claim 1, characterized in that: The surface of the mounting plate (1) is provided with a support device (6), the support device (6) includes a bidirectional threaded rod (61), the bidirectional threaded rod (61) is disposed inside the mounting plate (1).

6. A replaceable tooth sprocket assembly according to claim 5, characterized in that: A drive motor (62) is provided on one side of the bidirectional threaded rod (61), and the output end of the drive motor (62) is fixedly connected to one side of the bidirectional threaded rod (61). A moving block (63) is threadedly connected to the surface of the bidirectional threaded rod (61).

7. A replaceable tooth sprocket assembly according to claim 6, characterized in that: An electric telescopic rod (64) is fixedly connected to the inner surface of the movable block (63), and a connecting block (65) is fixedly connected to the side of the electric telescopic rod (64) away from the movable block (63). A support plate (66) is fixedly connected to the surface of the connecting block (65).

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