Auxiliary device for maintaining chain wheel assembly
By designing auxiliary devices for sprocket assembly maintenance and using the telescopic cylinder drive arc plate clamping method, the problems of unfixed fixation and accuracy deviation in traditional sprocket maintenance are solved, and stable clamping and uniform force for sprockets of different sizes are achieved, and maintenance accuracy and stability are improved.
Patent Information
- Application Number
- CN202520001950.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2035-01-02
AI Technical Summary
The traditional sprocket assembly maintenance method depends on the experience of the maintenance worker, and it is difficult to accurately fix the sprocket, resulting in limited operating space and deviation in maintenance accuracy.
An auxiliary device for maintenance of sprocket assembly is designed. The sprocket assembly clamping method driven by telescopic cylinder is used to achieve a tight fit and clamping of sprockets of different sizes through the linkage of connecting rods, connecting strips and arc plates. Through the cooperation of the arc plate and the clamping plate, the sprocket is ensured to be subjected to uniform force and all-round fixation in all directions.
Improve the versatility and applicability of the device, ensure that the sprocket remains stable during maintenance, avoid damage to the sprocket due to mismatch in the fixture size or excessive compression, and improve maintenance accuracy and stability.
Smart Images
Figure CN223277862U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sprocket maintenance, in particular to an auxiliary device for repairing a sprocket assembly. Background Art
[0002] As an important transmission component, sprockets are widely used in many industrial fields and mechanical equipment. During the operation of these equipment, the sprocket assembly undertakes the key tasks of transmitting power and controlling the speed and direction of movement. Its stable operation plays a vital role in the performance and reliability of the entire equipment. However, during long-term use, the sprocket assembly will inevitably suffer from various problems such as wear, deformation, fracture, and tooth surface damage. These problems will not only affect its transmission efficiency and accuracy, but may also cause abnormalities during equipment operation and cause equipment downtime.
[0003] Traditional sprocket assembly maintenance methods often rely on the maintenance worker's experience and manual operation, which has many limitations. There is a slot in the center of the sprocket assembly. During the inspection and repair process of the sprocket, it is difficult to fix the sprocket in the appropriate position, making it impossible for the maintenance worker to accurately measure the various parameters of the sprocket. The operating space is limited when performing maintenance operations such as tooth surface repair and chain replacement. To address the above problems, an auxiliary device for sprocket assembly maintenance is proposed. Utility Model Content
[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide an auxiliary device for repairing a sprocket assembly.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary device for repairing a sprocket assembly, comprising a base, a guide groove being provided on the top of the base, a telescopic cylinder being fixedly connected to the top center of the base, a fixing rod being fixedly connected to the top center of the telescopic cylinder, a movable tube being movably connected to the outer surface of the movable tube, a fixing plate being fixedly connected to the outer surface of two sides of the fixing plate, a connecting rod being movably connected to the outer surface of the other side of the connecting rod, and a connecting strip being fixedly connected to the outer wall of the connecting strip with an arc plate.
[0006] As mentioned above, the guide grooves, fixed plates and curved plates are each provided with two groups, and the guide grooves, fixed plates and curved plates are all opened in an outer ring shape about the fixed rod. The output end of the telescopic cylinder is fixedly connected to the bottom of the movable tube. A hole groove is opened inside the movable tube that fits with the outer wall of the fixed rod. The movable tube forms a sliding structure with the fixed rod through the telescopic cylinder.
[0007] As mentioned above, the fixing plate is annularly fixed to the outer surface of the movable tube, the connecting rods are symmetrically distributed on the outer walls on both sides of the fixing plate, and two groups of connecting rods are provided, and the connecting rods are rotatably connected to the fixing plate.
[0008] As mentioned above, the connecting rod and the connecting bar are rotationally connected, the vertical length of the connecting bar is greater than the vertical length of the arc plate, the bottom of the connecting bar is slidably connected to the inner wall of the guide groove, the outer side of the arc plate is set as an arc surface, and the arc plate forms a sliding structure with the guide groove through the cooperation of the connecting bar, the connecting rod and the movable tube.
[0009] As mentioned above, a movable groove is provided inside the outer side of the arc-shaped plate, outer sealing plates are fixedly connected to the two sides of the outer side of the movable groove, the outer side of the bottom end of the outer sealing plate is fixedly connected to the bottom plate, a telescopic rod is fixedly connected to the inner center of the movable groove, the outside of the telescopic rod is covered with a return spring, a slider is fixedly connected to the outer side of the top of the return spring, and a clamping plate is fixedly connected to the outer wall of one side of the slider.
[0010] As mentioned above, the outer side of the outer sealing plate and the arc plate are arranged in the same plane, the telescopic rod and the return spring are fixed between the slider and the movable groove, the outer wall of the slider is tightly fitted with the movable groove and the inner wall of the outer sealing plate, and the clamping plate passes through the outside of the outer sealing plate through the slider.
[0011] As mentioned above, a rubber layer is provided on the opposite side of the bottom plate and the clamping plate, and the clamping plate forms a lifting structure with the bottom plate through the cooperation between the telescopic rod and the return spring.
[0012] Compared with the prior art, this auxiliary device for sprocket assembly maintenance has the following beneficial effects:
[0013] 1. The utility model adopts an arc-shaped plate clamping method driven by a telescopic cylinder, which can adapt to sprockets of different sizes. Regardless of the difference in the diameter of the center hole groove or the different curvatures of the inner wall of the sprocket, a tight-fitting clamping effect can be achieved through the linkage of the connecting rod, the connecting bar and the arc-shaped plate, avoiding the problem of loose fixation or excessive extrusion damaging the sprocket due to the mismatch between the clamp and the sprocket size, greatly improving the versatility and applicability of the device. At the same time, the arc-shaped plate expands from the center to the outside to clamp the sprocket, so that the sprocket is subjected to uniform force in all directions.
[0014] 2. The utility model achieves all-round fixation of the sprocket by cooperating with the clamping plate through the action of the telescopic rod and the return spring, which approaches and fits the upper wall of the inner ring of the sprocket from above, restricts the sprocket at all angles, ensures that it remains stable during maintenance, and avoids maintenance accuracy deviation caused by slight displacement or shaking.
[0015] Other advantages, objectives and features of the present invention will be described in part in the following description and will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the auxiliary device for repairing the sprocket assembly of the utility model;
[0017] Figure 2 This is a schematic diagram of the top view of the auxiliary device for repairing the sprocket assembly of the utility model;
[0018] Figure 3 This is a schematic diagram of the bottom structure of the auxiliary device for repairing the sprocket assembly of the utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the clamping plate of the auxiliary device for repairing the sprocket assembly of the present utility model.
[0020] In the figure: 1. Base; 101. Guide groove; 102. Telescopic cylinder; 2. Fixed rod; 201. Movable tube; 202. Fixed plate; 203. Connecting rod; 204. Connecting strip; 205. Arc plate; 3. Movable groove; 301. Outer sealing plate; 302. Bottom plate; 303. Telescopic rod; 304. Return spring; 305. Slider; 306. Clamping plate. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] like Figure 1-4 As shown, the utility model provides a technical solution: an auxiliary device for repairing a sprocket assembly, comprising a base 1, a guide groove 101 is provided on the top of the base 1, a telescopic cylinder 102 is fixedly connected to the center of the top of the base 1, a fixed rod 2 is fixedly connected to the center of the top of the telescopic cylinder 102, the outer surface of the fixed rod 2 is movably connected to a movable tube 201, the outer surface of the movable tube 201 is fixedly connected to a fixed plate 202, both sides of the fixed plate 202 are movably connected to the outside of the connecting rod 203, and the outer surface of the other side of the connecting rod 203 is movably connected to the outside of the connecting rod 203. It is connected to a connecting strip 204, the outer wall of the connecting strip 204 is fixedly connected to a curved plate 205, a movable groove 3 is opened inside the outer side of the curved plate 205, the outer sides of the movable groove 3 are fixedly connected to outer sealing plates 301, the outer side of the bottom end of the outer sealing plate 301 is fixedly connected to the bottom plate 302, the inner center of the movable groove 3 is fixedly connected to a telescopic rod 303, the outside of the telescopic rod 303 is covered with a return spring 304, the top outer side of the return spring 304 is fixedly connected to a slider 305, and the outer wall of one side of the slider 305 is fixedly connected to a clamping plate 306.
[0023] According to the overall structure of the device, first place the sprocket that needs to be repaired on the outside of the annularly distributed arc plate 205, so that the outside of the arc plate 205 is placed inside the center hole groove of the sprocket, and the bottom of the sprocket is placed above the bottom plate 302. At this time, the telescopic cylinder 102 is in the extended state, and the arc plate 205 is also close to the center. Then start the telescopic cylinder 102, and the piston of the telescopic cylinder 102 begins to shrink downward, driving the movable tube 201 to slide downward along the fixed rod 2, and the fixed plate 202 outside the movable tube 201 also moves downward. When the fixed plate 202 drops, the connecting rod 203 will push the connecting bar 204 to slide outward on the inner wall of the guide groove 101. As the connecting bar 204 moves and slides outward, the two sets of arc plates 205 will gradually move away from the center and approach the inner wall of the sprocket, thereby When the sprocket is clamped, the bottom of the sprocket is placed above the bottom plate 302, and the interior is expanded and clamped outward by the arc plate 205. The telescopic rod 303 is composed of two nested rods, and there is a small cylinder at the bottom of the rod. At this time, the clamping plate 306 is in a higher position and does not clamp the sprocket. The two nested rods of the telescopic rod 303 are in a natural extension state, and the starting cylinder begins to contract, driving the top of the telescopic rod 303 and the return spring 304 to move downward, thereby driving the top slider 305 to slide downward along the inner wall in the movable groove 3, so that the clamping plate 306 fixed outside the slider 305 gradually approaches the top of the sprocket, and makes sure that the clamping plate 306 is in contact with the upper wall of the inner ring of the sprocket, and stably clamps the sprocket from the top and bottom directions with the bottom plate 302 to prevent the sprocket from shaking and displacement during maintenance.
[0024] like Figure 1-4 As shown, the guide groove 101, the fixed plate 202 and the arc plate 205 are each provided with two groups, and the guide groove 101, the fixed plate 202 and the arc plate 205 are all opened in an annular shape on the outer surface of the fixed rod 2. The output end of the telescopic cylinder 102 is fixedly connected to the bottom of the movable tube 201. The movable tube 201 is provided with a hole groove that fits the outer wall of the fixed rod 2. The movable tube 201 forms a sliding structure with the fixed rod 2 through the telescopic cylinder 102. The fixed plate 202 is annularly fixed to the outer surface of the movable tube 201. The connecting rod 203 is symmetrically divided. It is distributed on the outer walls on both sides of the fixed plate 202, and two groups of connecting rods 203 are provided. The connecting rods 203 are rotatably connected to the fixed plate 202, and the connecting rods 203 are rotatably connected to the connecting strips 204. The vertical length of the connecting strips 204 is greater than the vertical length of the arc-shaped plate 205. The bottom of the connecting strips 204 is slidably connected to the inner wall of the guide groove 101. The outer side of the arc-shaped plate 205 is provided with an arc-shaped surface. The arc-shaped plate 205 forms a sliding structure with the guide groove 101 through the cooperation of the connecting strips 204, the connecting rods 203 and the movable tube 201.
[0025] The movable tube 201 is driven by the telescopic cylinder 102 to slide downward along the fixed rod 2, and the fixed plate 202 outside the movable tube 201 also moves downward. When the fixed plate 202 descends, the connecting rod 203 pushes the connecting bar 204 to slide outward on the inner wall of the guide groove 101. As the connecting bar 204 moves and slides outward, the two sets of arc plates 205 will gradually move away from the center and approach the inner wall of the sprocket, thereby clamping the sprocket.
[0026] like Figure 1-4 As shown, the outer side of the outer sealing plate 301 and the arc plate 205 are arranged in the same plane, the telescopic rod 303 and the return spring 304 are fixed between the slider 305 and the movable groove 3, the outer wall of the slider 305 is tightly fitted with the inner wall of the movable groove 3 and the outer sealing plate 301, the clamping plate 306 passes through the outside of the outer sealing plate 301 through the slider 305, and a rubber layer is provided on the opposite side of the bottom plate 302 and the clamping plate 306. The clamping plate 306 forms a lifting structure with the bottom plate 302 through the cooperation between the telescopic rod 303 and the return spring 304.
[0027] The sprocket is placed on the bottom plate 302, and the interior of the sprocket is expanded and clamped outward by the arc plate 205. The telescopic rod 303 is composed of two nested sections of rods, and there is a small cylinder at the bottom of the section rod. At this time, the clamping plate 306 is in a higher position and does not clamp the sprocket. The two nested sections of the telescopic rod 303 are in a naturally extended state. The starting cylinder begins to contract, driving the top of the telescopic rod 303 and the return spring 304 to move downward, thereby driving the top slider 305 to slide downward along the inner wall in the movable groove 3, so that the clamping plate 306 fixed outside the slider 305 gradually approaches the top of the sprocket, and makes sure that the clamping plate 306 is in contact with the upper wall of the inner ring of the sprocket, and stably clamps the sprocket from the top and bottom directions with the bottom plate 302 to prevent the sprocket from shaking and displacement during maintenance.
[0028] Working principle: First, place the sprocket that needs to be repaired on the outside of the annularly distributed arc plate 205, so that the outside of the arc plate 205 is placed inside the central hole groove of the sprocket, and the bottom of the sprocket is placed on the bottom plate 302. At this time, the telescopic cylinder 102 is in the extended state, and the arc plate 205 is also close to the center. Then start the telescopic cylinder 102, and the piston of the telescopic cylinder 102 begins to contract downward, driving the movable tube 201 to slide downward along the fixed rod 2, and the fixed plate 202 outside the movable tube 201 also moves downward. When the fixed plate 202 descends, the connecting rod 203 will push the connecting bar 204 to slide outward on the inner wall of the guide groove 101. As the connecting bar 204 moves and slides outward, the two sets of arc plates 205 will gradually move away from the center and approach the inner wall of the sprocket, thereby clamping the sprocket.
[0029] At this time, the bottom of the sprocket is placed above the bottom plate 302, and the interior is expanded and clamped outward by the arc plate 205. The telescopic rod 303 is composed of two nested sections of rods, and there is a small cylinder at the bottom of the section rod. At this time, the clamping plate 306 is in a higher position and does not clamp the sprocket. The two nested sections of the telescopic rod 303 are in a naturally extended state. The starting cylinder begins to contract, driving the top of the telescopic rod 303 and the return spring 304 to move downward, thereby driving the top slider 305 to slide downward along the inner wall in the movable groove 3, so that the clamping plate 306 fixed outside the slider 305 gradually approaches the top of the sprocket, and makes sure that the clamping plate 306 is in contact with the upper wall of the inner ring of the sprocket, and stably clamps the sprocket from the top and bottom directions with the bottom plate 302 to prevent the sprocket from shaking and displacement during maintenance.
[0030] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sprocket assembly maintenance auxiliary device, comprising a base (1), characterized in that: A guide groove (101) is provided on the top of the base (1); a telescopic cylinder (102) is fixedly connected to the center of the top of the base (1); a fixed rod (2) is fixedly connected to the center of the top of the telescopic cylinder (102); an outer surface of the fixed rod (2) is movably connected to a movable tube (201); an outer surface of the movable tube (201) is fixedly connected to a fixed plate (202); connecting rods (203) are movably connected to the outside of both sides of the fixed plate (202); an outer surface of the other side of the connecting rod (203) is movably connected to a connecting strip (204); and an outer wall of the connecting strip (204) is fixedly connected to an arc-shaped plate (205).
2. The auxiliary device for sprocket assembly maintenance according to claim 1, characterized in that: The guide groove (101), the fixed plate (202) and the arc plate (205) are each provided in two groups, and the guide groove (101), the fixed plate (202) and the arc plate (205) are all opened in an outer ring shape with respect to the fixed rod (2). The output end of the telescopic cylinder (102) is fixedly connected to the bottom of the movable tube (201). A hole groove is opened inside the movable tube (201) and is in contact with the outer wall of the fixed rod (2). The movable tube (201) forms a sliding structure with the fixed rod (2) through the telescopic cylinder (102).
3. The auxiliary device for sprocket assembly maintenance according to claim 1, characterized in that: The fixed plate (202) is annularly fixed to the outer surface of the movable tube (201), and the connecting rods (203) are symmetrically distributed on the outer walls of both sides of the fixed plate (202). There are two groups of connecting rods (203), and the connecting rods (203) are rotatably connected to the fixed plate (202).
4. The auxiliary device for sprocket assembly maintenance according to claim 1, characterized in that: The connecting rod (203) and the connecting bar (204) are rotatably connected, the vertical length of the connecting bar (204) is greater than the vertical length of the arc plate (205), the bottom of the connecting bar (204) is slidably connected to the inner wall of the guide groove (101), the outer side of the arc plate (205) is provided with an arc surface, and the arc plate (205) forms a sliding structure with the guide groove (101) through the cooperation of the connecting bar (204), the connecting rod (203) and the movable tube (201).
5. The auxiliary device for sprocket assembly maintenance according to claim 1, characterized in that: A movable groove (3) is provided inside the outer side of the arc-shaped plate (205), and outer sealing plates (301) are fixedly connected to both sides of the outer side of the movable groove (3), and a bottom plate (302) is fixedly connected to the outer side of the bottom end of the outer sealing plate (301), and a telescopic rod (303) is fixedly connected to the inner center of the movable groove (3), and a return spring (304) is coated on the outside of the telescopic rod (303), and a slider (305) is fixedly connected to the outer side of the top of the return spring (304), and a clamping plate (306) is fixedly connected to the outer wall of one side of the slider (305).
6. The auxiliary device for sprocket assembly maintenance according to claim 5, characterized in that: The outer side of the outer sealing plate (301) and the arc-shaped plate (205) are arranged in the same plane, the telescopic rod (303) and the return spring (304) are fixed between the slider (305) and the movable groove (3), the outer wall of the slider (305) is tightly fitted with the inner wall of the movable groove (3) and the outer sealing plate (301), and the clamping plate (306) passes through the outside of the outer sealing plate (301) through the slider (305).
7. The auxiliary device for sprocket assembly maintenance according to claim 5, characterized in that: The bottom plate (302) and the clamping plate (306) are both provided with a rubber layer on the opposite side. The clamping plate (306) forms a lifting structure with the bottom plate (302) through the cooperation between the telescopic rod (303) and the return spring (304).