Chain wear resistance test device

Abstract

The utility model discloses a chain wear resistance test device, and particularly relates to the technical field of chain test equipment, the chain wear resistance test device comprises a bottom plate, the right side of the upper end of the bottom plate is fixedly connected with an electric slide rail, the upper side of the electric slide rail is slidably connected with a slide block, and both sides of the upper end of the bottom plate are provided with lifting assemblies; a motor is fixedly connected to the upper end of the lifting assembly located on the left side, a connecting assembly is movably connected to the output end of the motor, a support is fixedly connected to the middle of the upper end of the bottom plate, and a tensioning assembly is fixedly connected to the rear side of the support. According to the chain wear resistance test device, the height of the chain wheel can be adjusted through the lifting assembly, so that the test device can adapt to chain wheels of different sizes and specifications, various test requirements are met, the tensioning degree of the chain can be adjusted through the tensioning assembly, the continuity and stability of the test are kept, and the connecting assembly is arranged, so that the test efficiency is improved. A motor and a chain wheel can be connected, and stable and accurate transmission between the motor and the chain wheel is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of chain testing equipment, and in particular to a chain abrasion resistance testing device. Background Technology

[0002] A bicycle chain is an assembly of identical or spaced components connected in a kinematic pair. It generally includes several links, each containing a pin and inner and outer chain plates at both ends. The wear resistance of the chain directly affects its service life. In production, bicycle chains are usually tested for wear resistance using a chain wear resistance testing device to ensure the safety factor and service life of the chains leaving the factory.

[0003] Chinese Patent Publication No. CN211904973U discloses a chain abrasion resistance testing device, including a base. Self-locking casters are installed at the four corners of the base's bottom. A mounting box is fixedly connected to the rear side of the middle position of the base's top wall. Mounting rods are symmetrically fixedly connected to one side of the base's top wall, with a camera rotatably connected between two of the mounting rods. A mounting box is fixedly connected to the side of the base's top wall away from the mounting rods. A camera module is fixedly installed at the center of the front side wall of the mounting box. This device, with its self-locking casters at the bottom, offers good mobility. It also features an intelligent real-time multi-angle observation mechanism to monitor chain wear during the abrasion resistance test, and a corresponding data processing and feedback mechanism. The overall device is very convenient to use and has high practical application value.

[0004] Although the equipment described in the aforementioned literature can perform abrasion resistance tests on chains, it cannot dynamically adjust the chain tension during the test. As the test progresses, the chain may lengthen due to wear, and the lack of tension adjustment will affect the accuracy of the test results. Utility Model Content

[0005] The main purpose of this invention is to provide a chain abrasion resistance testing device that can effectively solve the problem of not being able to dynamically adjust chain tension.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A chain abrasion resistance testing device includes a base plate. An electric slide rail is fixedly connected to the upper right side of the base plate, and a slider is slidably connected to the upper side of the electric slide rail. Lifting components are provided on both sides of the upper end of the base plate. One lifting component on the left side is fixedly connected to the base plate, and one lifting component on the right side is fixedly connected to the slider. A motor is fixedly connected to the upper end of the lifting component on the left side, and a connecting component is movably connected to the output end of the motor. A sprocket is movably connected to the rear side of the connecting component, and a sprocket is rotatably connected to the rear side of the lifting component on the right side. A bracket is fixedly connected to the middle of the upper end of the base plate, and a tensioning component is fixedly connected to the rear side of the bracket.

[0008] Preferably, the lifting assembly includes a housing fixedly connected to the upper end of the base plate, a sliding frame slidably connected to the inner surface of the housing, a bevel gear set rotatably connected to the bottom wall of the inner surface of the housing, a knob fixedly connected to the rear end of the bevel gear set, the rear end of the knob penetrating through the housing, and a threaded rod fixedly connected to the upper side of the bevel gear set, the threaded rod being threadedly connected to the sliding frame.

[0009] Preferably, the connecting assembly includes two fixing parts, which are respectively movably connected to the motor output end and the front end of the sprocket. The ends of the two fixing parts that are close to each other are movably connected to a connecting plate by fasteners, and the ends of the two connecting plates that are close to each other are fixedly connected to an adjusting part.

[0010] Preferably, the fixing part includes an upper bushing and a lower bushing located on the outside of the motor output end, and both sides of the upper bushing and the lower bushing are connected by a plurality of fasteners.

[0011] Preferably, the adjusting part includes a support fixedly connected to one end of the two connecting plates that are close to each other, the two supports are vertically arranged, and slide rods are slidably connected to both sides of the two supports, and the four slide rods are fixedly connected to a connecting block.

[0012] Preferably, the tensioning assembly includes an L-shaped plate fixedly connected to the upper side of the rear end of the bracket, a connecting rod rotatably connected to the lower side of the L-shaped plate, a sprocket fixedly connected to the front end of the connecting rod, and a spring fixedly connected to both the L-shaped plate and the connecting rod.

[0013] Preferably, a chain is wound around the outer surfaces of sprocket one and sprocket two, and sprocket three is located on the underside of the chain and meshes with the chain.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model can adjust the height of the sprocket by setting a lifting component, so that the test device can adapt to sprockets of different sizes and specifications, thereby meeting a variety of test requirements and improving the flexibility and adaptability of the test. The tensioning component can adjust the tension of the chain. As the test proceeds, the chain may become longer due to wear. The tensioning component can dynamically adjust the chain tension to compensate for the wear and elongation of the chain and maintain the continuity and stability of the test.

[0016] 2. This utility model, by setting a connecting component, can connect the motor and the sprocket, compensate for the deviation generated between the two during rotation, ensure a smoother and more accurate transmission between the motor and the sprocket, and facilitate disassembly for replacement of the sprocket. When it is necessary to test sprockets of different specifications or materials, they can be quickly replaced, improving testing efficiency. 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 partial cross-sectional structural diagram of the lifting component of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure of the connecting plate and the adjusting part of this utility model;

[0021] Figure 5 This is a schematic diagram of the tensioning component structure of this utility model.

[0022] In the diagram: 1. Base plate; 2. Electric slide rail; 3. Slider; 4. Lifting assembly; 41. Housing; 42. Sliding frame; 43. Bevel gear set; 44. Knob; 45. Threaded rod; 5. Motor; 6. Connecting assembly; 61. Fixing part; 611. Upper bushing; 612. Lower bushing; 613. Fastener one; 62. Connecting plate; 63. Adjusting part; 631. Support; 632. Slide rod; 633. Connecting block; 7. Sprocket one; 8. Sprocket two; 9. Bracket; 10. Tensioning assembly; 101. L-shaped plate; 102. Connecting rod; 103. Sprocket three; 104. Spring. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Example 1

[0025] like Figure 1As shown, a chain abrasion resistance testing device includes a base plate 1. An electric slide rail 2 is fixedly connected to the upper right side of the base plate 1, and a slider 3 is slidably connected to the upper side of the electric slide rail 2. Lifting components 4 are provided on both sides of the upper end of the base plate 1. The lifting component 4 on the left side is fixedly connected to the base plate 1, and the lifting component 4 on the right side is fixedly connected to the slider 3. A motor 5 is fixedly connected to the upper end of the lifting component 4 on the left side. A connecting component 6 is movably connected to the output end of the motor 5. A sprocket 7 is movably connected to the rear side of the connecting component 6. A sprocket 8 is rotatably connected to the rear side of the lifting component 4 on the right side. A bracket 9 is fixedly connected to the middle of the upper end of the base plate 1, and a tensioning component 10 is fixedly connected to the rear side of the bracket 9.

[0026] like Figure 2 As shown, the lifting assembly 4 includes a housing 41 fixedly connected to the upper end of the base plate 1. A sliding frame 42 is slidably connected to the inner surface of the housing 41. A bevel gear set 43 is rotatably connected to the bottom wall of the inner surface of the housing 41. A knob 44 is fixedly connected to the rear end of the bevel gear set 43. The rear end of the knob 44 passes through the housing 41. A threaded rod 45 is fixedly connected to the upper side of the bevel gear set 43. The threaded rod 45 is threadedly connected to the sliding frame 42.

[0027] In this embodiment, the bicycle chain to be tested is wound around the outside of sprocket 7 and sprocket 8. Then, the electric slide rail 2 drives the slider 3 and the lifting assembly 4 fixedly connected to the slider 3 to move. The distance between the two lifting assemblies 4 is adjusted, that is, the tension of the bicycle chain is adjusted. At the same time, the height of the lifting assembly 4 is adjusted. The knob 44 is turned to drive the bevel gear set 43 to rotate, which in turn drives the threaded rod 45 to rotate. The rotation of the threaded rod 45 drives the sliding frame 42 to move in the vertical direction, which in turn drives sprocket 7, sprocket 8 and the chain to move. Then, the motor 5 drives the connecting assembly 6 to rotate, and the connecting assembly 6 drives sprocket 7, the chain and sprocket 8 to rotate.

[0028] like Figure 3 As shown, the connecting component 6 includes two fixing parts 61, which are movably connected to the output end of the motor 5 and the front end of the sprocket 7, respectively. The ends of the two fixing parts 61 that are close to each other are movably connected to a connecting plate 62 by fasteners. The ends of the two connecting plates 62 that are close to each other are fixedly connected to an adjusting part 63.

[0029] like Figure 3 As shown, the fixing part 61 includes an upper bushing 611 and a lower bushing 612 located on the outside of the output end of the motor 5. Both sides of the upper bushing 611 and the lower bushing 612 are connected by a number of fasteners 613.

[0030] like Figure 4As shown, the adjustment part 63 includes a support 631 fixedly connected to one end of the two connecting plates 62 that are close to each other. The two supports 631 are vertically arranged, and slide rods 632 are slidably connected to both sides of the two supports 631. The four slide rods 632 are fixedly connected to a connecting block 633.

[0031] In chain wear resistance tests, the size of the sprocket diameter affects the chain's wear elongation and transmission accuracy. It determines the chain's stress and wear characteristics during transmission. Therefore, different sprocket diameters are selected according to the characteristics of the chain being tested.

[0032] When the sprocket needs to be replaced, remove the fasteners connecting the connecting plate 62 and the fixing part 61 to separate the connecting plate 62 and the fixing part 61. Then remove the fastener 613 to separate the upper bushing 611 and the lower bushing 612. Remove the old sprocket and fix the shaft of the new sprocket to the upper bushing 611 and the lower bushing 612 using the fastener 613. When the motor 5 drives the connecting assembly 6 to rotate, vibration and impact may cause a deviation between the output end of the motor 5 and the shaft of the sprocket 7. When the two deviate, the slide rod 632 will slide, thereby compensating for the deviation and improving the stability of the transmission.

[0033] Example 2

[0034] Based on Example 1, this embodiment adds a tensioning component 10 to dynamically adjust the chain tension during the test, thereby ensuring the accuracy of the test results.

[0035] like Figure 5 As shown, the tensioning assembly 10 includes an L-shaped plate 101 fixedly connected to the upper side of the rear end of the bracket 9. A connecting rod 102 is rotatably connected to the lower side of the L-shaped plate 101. A sprocket 103 is fixedly connected to the front end of the connecting rod 102. A spring 104 is fixedly connected to both the L-shaped plate 101 and the connecting rod 102.

[0036] Furthermore, a chain is wound around the outer surfaces of sprocket 7 and sprocket 8, and sprocket 3 103 is located on the underside of the chain and meshes with the chain.

[0037] In this embodiment, the lower side of the bicycle chain engages with sprocket 3 103. When the chain rotates, it drives sprocket 3 103 to rotate. When the chain loosens, the chain pushes sprocket 3 103 downward, and sprocket 3 103 drives the connecting rod 102 to rotate, stretching the spring 104. Because the spring 104 has elasticity, the position of sprocket 3 103 can be moved according to the tension of the chain, thereby adjusting the tension of the chain.

[0038] It should be noted that the specific installation method, circuit connection method, and control method of the electric slide rail 2 and motor 5 used in this utility model are all conventional designs, and will not be described in detail in this utility model.

[0039] The working principle of this utility model is as follows: First, the bicycle chain to be tested is wound around the outside of sprocket 7 and sprocket 8. Then, the electric slide rail 2 drives the slider 3 and the lifting assembly 4 fixedly connected to the slider 3 to move, adjusting the distance between the two lifting assemblies 4, that is, adjusting the tension of the bicycle chain. At the same time, the height of the lifting assembly 4 is adjusted. Turning the knob 44 drives the bevel gear set 43 to rotate, which in turn drives the threaded rod 45 to rotate. The rotation of the threaded rod 45 drives the sliding frame 42 to move in the vertical direction, which in turn drives sprocket 7 and sprocket 8 to move in the vertical direction. The chain moves so that the lower side of the bicycle chain engages with sprocket 3 103. Then, motor 5 drives connecting component 6 to rotate, which in turn drives sprocket 1 7, chain, and sprocket 2 8 to rotate. When the chain rotates, it drives sprocket 3 103 to rotate. When the chain loosens, the chain pushes sprocket 3 103 downward, which drives connecting rod 102 to rotate and stretch spring 104. Because spring 104 has elasticity, the position of sprocket 3 103 can be moved according to the chain tension to adjust the chain tension.

[0040] In chain wear resistance tests, the size of the sprocket diameter affects the chain's wear elongation and transmission accuracy. It determines the chain's stress and wear characteristics during transmission. Therefore, different sprocket diameters are selected according to the characteristics of the chain being tested.

[0041] When the sprocket needs to be replaced, remove the fasteners connecting the connecting plate 62 and the fixing part 61 to separate the connecting plate 62 and the fixing part 61. Then remove the fastener 613 to separate the upper bushing 611 and the lower bushing 612. Remove the old sprocket and fix the shaft of the new sprocket to the upper bushing 611 and the lower bushing 612 through the fastener 613. When the motor 5 drives the connecting assembly 6 to rotate, vibration and impact may cause a deviation between the output end of the motor 5 and the shaft of the sprocket 7. When the two deviate, the slide rod 632 will slide to compensate for the deviation and improve the stability of the transmission.

[0042] Then, the wear of the chain is monitored in real time by external sensors, such as the amount of wear and the wear rate, and the data is recorded.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A chain abrasion resistance testing device, comprising a base plate (1), characterized in that: An electric slide rail (2) is fixedly connected to the upper right side of the base plate (1). A slider (3) is slidably connected to the upper side of the electric slide rail (2). Lifting components (4) are provided on both sides of the upper end of the base plate (1). One of the lifting components (4) on the left side is fixedly connected to the base plate (1), and one of the lifting components (4) on the right side is fixedly connected to the slider (3). A motor (5) is fixedly connected to the upper end of one of the lifting components (4) on the left side. A connecting component (6) is movably connected to the output end of the motor (5). A sprocket (7) is movably connected to the rear side of the connecting component (6). A sprocket (8) is rotatably connected to the rear side of one of the lifting components (4) on the right side. A bracket (9) is fixedly connected to the middle of the upper end of the base plate (1). A tensioning component (10) is fixedly connected to the rear side of the bracket (9).

2. The chain abrasion resistance testing device according to claim 1, characterized in that: The lifting assembly (4) includes a housing (41) fixedly connected to the upper end of the base plate (1). A sliding frame (42) is slidably connected to the inner surface of the housing (41). A bevel gear set (43) is rotatably connected to the bottom wall of the inner surface of the housing (41). A knob (44) is fixedly connected to the rear end of the bevel gear set (43). The rear end of the knob (44) passes through the housing (41). A threaded rod (45) is fixedly connected to the upper side of the bevel gear set (43). The threaded rod (45) is threadedly connected to the sliding frame (42).

3. The chain abrasion resistance testing device according to claim 1, characterized in that: The connecting component (6) includes two fixing parts (61), which are movably connected to the output end of the motor (5) and the front end of the sprocket (7), respectively. The ends of the two fixing parts (61) that are close to each other are movably connected to a connecting plate (62) by fasteners. The ends of the two connecting plates (62) that are close to each other are fixedly connected to an adjusting part (63).

4. The chain abrasion resistance testing device according to claim 3, characterized in that: The fixing part (61) includes an upper bushing (611) and a lower bushing (612) located on the outside of the output end of the motor (5). Both sides of the upper bushing (611) and the lower bushing (612) are connected by a number of fasteners (613).

5. The chain abrasion resistance testing device according to claim 3, characterized in that: The adjustment part (63) includes a support (631) fixedly connected to one end of the two connecting plates (62) that are close to each other. The two supports (631) are vertically arranged, and slide rods (632) are slidably connected to both sides of the two supports (631). The four slide rods (632) are fixedly connected to a connecting block (633).

6. The chain abrasion resistance testing device according to claim 1, characterized in that: The tensioning assembly (10) includes an L-shaped plate (101) fixedly connected to the upper rear end of the bracket (9), a connecting rod (102) rotatably connected to the lower side of the L-shaped plate (101), a sprocket (103) fixedly connected to the front end of the connecting rod (102), and a spring (104) fixedly connected to both the L-shaped plate (101) and the connecting rod (102).

7. The chain abrasion resistance testing device according to claim 6, characterized in that: The outer surfaces of the first sprocket (7) and the second sprocket (8) are connected together by a chain, and the third sprocket (103) is located on the lower side of the chain and meshes with the chain.

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