Air tightness testing device for sprocket shaft group

Abstract

The invention relates to a sprocket shaft group air tightness testing device, which relates to the field of sprocket air tightness testing equipment and comprises a base, a supporting assembly, a positioning assembly, a rotating assembly, a clamping assembly, an adjusting assembly and an air pressure detection assembly. The base is horizontally arranged; the supporting assembly comprises a bottom plate, a supporting column, a supporting block and a supporting plate. The bottom plate is slidably arranged on the base in the horizontal direction, the supporting column is vertically arranged and fixed to the bottom plate, the supporting block is fixedly arranged at the top of the supporting column, an arc-shaped containing groove is formed in the top of the supporting block, and the supporting plate is vertically arranged and fixedly arranged on the bottom plate; the number of the positioning assemblies is two, and the two positioning assemblies are both arranged on the base and used for positioning the supporting plate in the horizontal direction. The rotating assembly is used for driving the sprocket shaft set to rotate. The clamping assembly is used for clamping a sprocket shaft group to be tested; the adjusting assembly is used for adjusting the height of the rotating shaft and positioning the rotating shaft. According to the clamping device, efficient and stable clamping and rotating of the chain wheel shaft set are achieved.

Description

Technical Field

[0001] The present application relates to the field of sprocket air tightness testing equipment, and in particular to a sprocket shaft assembly air tightness testing device. Background Art

[0002] The sprocket shaft assembly is one of the common transmission components in mechanical equipment and is widely used in various industrial equipment. With the development of modern manufacturing, the quality requirements for the sprocket shaft assembly are getting higher and higher, especially the requirements for its air tightness are more stringent. The air tightness test can not only ensure that the sprocket shaft assembly will not leak during use, but also improve the operating efficiency and safety of the entire system. Therefore, it is of great significance to develop an efficient and accurate sprocket shaft assembly air tightness test device.

[0003] The existing method of testing the air tightness of the sprocket shaft assembly mainly relies on manually rotating the sprocket shaft assembly on the ground to observe whether there is liquid leakage. This method is relatively common in practical applications and is suitable for sprocket products of various specifications and uses. However, for the method of manually rotating the sprocket shaft assembly on the ground, due to the large size and weight of the sprocket shaft assembly, it is difficult to control its balance and rotation trajectory, the operation is inconvenient and there are certain safety risks; in addition, since the internal liquid of the sprocket may be unevenly distributed during the rotation process, the test results may be inaccurate. This uneven liquid distribution can easily cover up the actual air tightness problem of the sprocket, thereby affecting the final quality assessment.

[0004] With respect to the above-mentioned related technologies, the inventors believe that in the traditional air tightness detection process of the sprocket shaft assembly, the method of manually rotating the sprocket shaft assembly on the ground to detect the air tightness has the defects of inconvenient operation and inaccurate detection results. Summary of the invention

[0005] In order to improve the existing technology, during the air tightness test of the sprocket shaft group, the method of manually rotating the sprocket shaft group on the ground to test the air tightness has the defects of inconvenient operation and inaccurate test results, the present application provides a sprocket shaft group air tightness test device.

[0006] The present application provides a sprocket shaft assembly air tightness test device, which adopts the following technical solution: 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said two-wheeled vehicle has the first pivot place and said second pivot places are located on said cam, and said cam is connected with said support frame by said sliding contact surface. said two-wheeled vehicle has a first pivot place and said cam is connected with said support frame by said sliding contact surface. The cam is an angular channel that is formed on a pair of cylindrical rollers, each of which has a camming element and a camming element that is adapted to move the rollers relative to the camshaft. The cams are configured to move the rollers relative to the camshaft, wherein the cylindrical rollers are provided with a plurality of cylindrical rollers that are adapted to move the rollers relative to the camshaft.

[0007] By adopting the above technical scheme, the sprocket shaft group air tightness test device can realize efficient and accurate air tightness test of the sprocket shaft group. The specific effects are as follows: the base is set horizontally to ensure the stability of the entire device and facilitate operation and maintenance; the structural design of the support component enables the sprocket shaft group to be adjusted and fixed in multiple directions, which improves the flexibility and application scope of the test. Through the setting of two groups of support components, the two ends of the sprocket shaft group can be placed on the two groups of support components respectively, and the distance between the two groups of support components can be adjusted through the sliding setting of the bottom plate, so as to place sprocket shaft groups of different lengths, thereby increasing its application scope; the use of the positioning component can accurately control the position of the support plate, and the distance between the two bottom plates can be adjusted according to the length of the sprocket shaft group, and the position of the bottom plate can be positioned by the positioning component to ensure the stability and accuracy of the sprocket shaft group during the test; the design of the rotating component enables the sprocket shaft group to be easily rotated to different angles, which is convenient for rotation and comprehensive inspection of air tightness; the structural design of the clamping component can firmly clamp the sprocket shaft group to prevent loosening or displacement during the test; the design of the operating block can operate the rotation of the circular plate through the operating block, thereby improving the convenience of operation. Since the sprocket shaft assembly is heavy, if it is placed on the support block and rotated, the friction is large. The use of the adjusting component can quickly adjust the height of the rotating shaft, thereby adjusting the height of the clamping component, and then adjusting the height of the sprocket shaft assembly, and lifting the sprocket shaft assembly from the support block to facilitate the rotation of the sprocket shaft assembly; the integrated design of the air pressure detection component simplifies the test process, improves the test efficiency, and ensures the accuracy and reliability of the test results; in general, the sprocket shaft assembly is first placed on the supporting assembly, and then the sprocket shaft assembly is clamped by the clamping assembly, and then the sprocket shaft assembly is lifted by the adjusting component, and then the sprocket shaft assembly is rotated by the rotating assembly The wheel axle assembly rotates to observe whether it leaks oil. If there is oil leakage, it proves that its air tightness does not meet the requirements. If there is no oil leakage, use the air pressure detection component to test it, insert the air pipe into the oil filling port, add high-pressure gas into the sprocket shaft assembly through the high-pressure air pump, and then observe whether the value of the pressure gauge changes within the preset time. If there is no change, it proves that its air tightness is good. If there is a change, it proves that its air tightness does not meet the requirements. In summary, the air tightness testing device realizes dual detection of rotation detection and air pressure detection, improves the accuracy of the test results, and reduces the difficulty of operation through the synergy between various components.

[0008] Optionally, two first slide grooves are provided on the top surface of the base, the size of the first slide grooves is adapted to the size of the bottom plate, and the bottom plate is slidably arranged in the first slide grooves along the horizontal direction; limiting slide grooves are provided on the sides on both sides of the first slide grooves, and limiting sliding blocks fixedly connected to the bottom plate are slidably arranged in the limiting slide grooves.

[0009] By adopting the above technical solution, the sprocket shaft assembly air tightness test device can realize the horizontal sliding of the bottom plate on the base, so as to facilitate the adjustment of the position of the support assembly, making the device more flexible to adapt to sprocket shaft assemblies of different sizes, improving the applicability and convenience of the test. At the same time, through the cooperation of the limit slider and the limit slide groove, the stability and accuracy of the bottom plate sliding are guaranteed, further improving the reliability of the test results.

[0010] Optionally, the positioning assembly includes a positioning rod and an operating plate, a first positioning groove is provided on the top surface of the base plate, the first positioning groove penetrates the base plate in a vertical direction, and a plurality of second positioning grooves are provided on the bottom surface of the first slide groove and are evenly distributed along its length direction; the sizes of the first positioning groove and the second positioning groove are both adapted to the sizes of the positioning rod, the positioning rod slides through the first positioning groove in the vertical direction, and the bottom end of the positioning rod can be penetrated into any one of the second positioning grooves; the operating plate is fixedly arranged on the top end of the positioning rod, and the operating plate is always located outside the first positioning groove.

[0011] By adopting the above technical solution, the positioning assembly can realize accurate positioning of the support plate, ensuring that the position of the support plate is stable and reliable during the test. Specifically, the design of the positioning rod and the operating panel allows the operator to easily adjust the position of the support plate, and to achieve multi-point positioning by inserting the positioning rod into the second positioning slot at different positions, thereby improving the flexibility and scope of application of the equipment. At the same time, the size of the positioning rod matches the first positioning slot and the second positioning slot, ensuring the accuracy and stability of the positioning process. In addition, the setting of the operating panel facilitates the operator to perform positioning operations, thereby improving work efficiency.

[0012] Optionally, the clamping assembly includes a clamping plate, a telescopic rod, a first spring and a clamping block; two clamping plates are fixedly arranged on each circular plate, and the two clamping plates located on the same circular plate are arranged opposite to each other; the two clamping plates located on the same circular plate are fixedly connected to a telescopic rod on one side close to each other, and a clamping block is fixedly connected to a side of the telescopic rod away from the clamping plate, and an arc-shaped clamping groove is provided on the side of the clamping block away from the telescopic rod.

[0013] By adopting the above technical solution, the sprocket shaft assembly air tightness test device can achieve stable and reliable clamping of sprocket shaft assemblies of different specifications. Specifically, the design of the clamping plate and the telescopic rod enables the clamping assembly to have a certain degree of self-adaptation and can adapt to sprocket shaft assemblies of different diameters; the use of the first spring further enhances the stability of the clamping, ensuring that the sprocket shaft assembly will not loosen or fall off during the test; the arc-shaped clamping groove on the clamping block can better fit the shape of the sprocket shaft assembly, reduce damage to the surface of the sprocket shaft assembly, and improve the accuracy of the test results.

[0014] Optionally, the adjustment assembly includes a second slider, a second slide groove is provided on the support plate, the length direction of the second slide groove is the vertical direction, the second slide groove penetrates the support plate in the horizontal direction, the second slider is slidably arranged in the second slide groove in the vertical direction, a through hole is provided on the second slider, the through hole penetrates the second slider in the horizontal direction, and the rotating shaft is rotatably arranged in the through hole; the circular plate is located on the side of the rotating shaft close to the support column, and the side of the rotating shaft away from the circular plate is fixedly connected to the limiting plate, the limiting plate is located on the side of the support plate away from the circular plate, and the circular plate and the limiting plate are both abutted against the side of the support plate.

[0015] By adopting the above technical solution, the sprocket shaft group air tightness test device realizes precise height adjustment and stable positioning of the sprocket shaft group. Specifically, the vertical sliding of the second slider in the second slide groove allows the height of the rotating shaft to be flexibly adjusted; the rotation setting of the rotating shaft in the through hole ensures that the circular plate and the clamping assembly thereon can rotate freely in the horizontal direction, which is convenient for operators to test the sprocket shaft group at multiple angles; the design of the limit plate effectively prevents the movement of the rotating shaft in the horizontal direction and ensures stability during the test; the circular plate and the limit plate are in contact with the side of the support plate, which further enhances the stability and reliability of the structure and improves the accuracy of the test results.

[0016] Optionally, the limiting plate is circular, the axial direction of the limiting plate coincides with the axial direction of the rotating shaft, and a rotating rod is fixedly connected to a side of the limiting plate away from the rotating shaft.

[0017] By adopting the above technical solution, a stable connection between the limit plate and the rotating shaft is achieved, and the precise matching between the limit plate and the support plate is ensured. Specifically, the circular design of the limit plate makes it more convenient during installation, while ensuring the coaxiality between the limit plate and the rotating shaft, thereby improving the structural stability of the entire device. A rotating rod is fixedly connected to the side of the limit plate away from the rotating shaft, so that the limit plate can be driven to rotate by operating the rotating rod, and then the rotating shaft, the circular plate and the clamping assembly can be driven to rotate, further improving the convenience of operation.

[0018] Optionally, the longitudinal section of the second slide groove is cross-shaped, the longitudinal section of the second slider is also cross-shaped and its size is adapted to the size of the second slide groove, an annular first groove is provided on the inner side wall of the through hole, an annular first block is fixedly sleeved on the rotating shaft, and the first block is rotatably set in the first groove.

[0019] By adopting the above technical solution, the longitudinal section of the second slide groove and the second slider is designed to be cross-shaped, so that the sliding of the second slider in the second slide groove is more stable, effectively preventing the displacement or falling off during the sliding process, and improving the overall stability of the device. At the same time, the design of the first slot and the first block ensures the stable rotation of the shaft in the through hole, avoiding the test error caused by looseness, and further improving the accuracy and reliability of the test results.

[0020] Optionally, the adjusting component also includes a second blocking block and a second spring; a third sliding groove is provided on the side surfaces on both sides of the second sliding block, the second blocking block is slidably arranged in the third sliding groove, the second spring is arranged between the second blocking block and the bottom of the third sliding groove, one end of the second spring is fixedly connected to the second blocking block, and the other end is fixedly connected to the bottom of the third sliding groove; a plurality of positioning holes evenly distributed in the vertical direction are provided on the side surfaces on both sides of the second sliding groove, the positioning holes penetrate the support plate in the horizontal direction, and when the second blocking block is aligned with any one of the positioning holes, the second blocking block can be clamped in the positioning hole under the tension of the corresponding second spring; an operating rod is slidably penetrated in the positioning hole.

[0021] By adopting the above technical solution, the adjustment component can achieve precise adjustment and stable positioning of the shaft height. Specifically: the design of the second clamping block and the second spring enables the second clamping block to be automatically clamped in the positioning hole under the tension of the corresponding second spring, thereby ensuring the stability of the shaft at different heights; the setting of the operating lever facilitates manual adjustment of the position of the second clamping block to disengage it from the positioning hole, thereby achieving rapid adjustment of the shaft height; the uniform distribution design of the positioning holes enables the shaft to be positioned at multiple preset heights to meet different testing requirements.

[0022] Optionally, a limiting groove is provided on a side wall on one side in the horizontal direction of the positioning hole, and a limiting block fixedly connected to the operating rod is slidably arranged in the limiting groove.

[0023] By adopting the above technical solution, a limiting groove is provided on the side wall on one side of the positioning hole in the sprocket shaft assembly air tightness test device in the horizontal direction, and a limiting block fixedly connected to the operating rod is slidably arranged in the limiting groove. This design makes the operating rod more stable when inserted into the positioning hole, avoiding the operating rod from coming out due to external vibration or improper operation, thereby improving the safety and reliability of the equipment. At the same time, the design of the limiting block can also effectively prevent the operating rod from shifting during use, ensuring the accuracy of the test results.

[0024] Optionally, the longitudinal cross-section of the positioning hole is circular, and the longitudinal cross-section of the operating rod is also circular and its size is adapted to the size of the positioning hole; a limiting slot is provided on the side of the bottom surface of the limiting slot close to the second slide slot, and the longitudinal cross-section of the limiting slot is fan-shaped. When the limiting block is aligned with the limiting slot, it can rotate and be clamped in the limiting slot under the action of its own gravity. At this time, the end of the operating rod close to the second slide slot is located at the boundary between the second slide slot and the positioning hole.

[0025] By adopting the above technical solution, when the height of the second slider needs to be adjusted, the limit block in the positioning hole of the corresponding height is rotated into the limit slot to keep it away from the limit slot, and then the limit blocks in the limit slots in the remaining positioning holes are rotated and clamped in the limit slots, so that the end of the corresponding operating rod close to the second slide slot is located at the boundary between the second slide slot and the positioning hole, thereby preventing the second block from being clamped at the remaining heights.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the coordinated work of the base, support assembly, positioning assembly, rotating assembly, clamping assembly, adjusting assembly and air pressure detection assembly, the sprocket shaft group is efficiently and stably clamped and rotated, which solves the problems of inconvenient operation and low accuracy when the sprocket shaft group is rotated manually on the ground, and improves the safety and convenience of the test; 2. The design of the rotating assembly and the adjusting assembly enables the sprocket shaft group to be accurately tested at multiple angles and heights, avoiding inaccurate test results caused by uneven distribution of liquid inside the sprocket shaft group, and improving the reliability and accuracy of the test; 3. The high-pressure air pump and pressure gauge in the air pressure detection component can monitor the air tightness of the sprocket shaft group in real time, ensuring the accuracy and traceability of data during the test process, and further improving the accuracy and reliability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a schematic longitudinal section diagram of an embodiment of the present application; Figure 3 yes Figure 2 A partial enlarged schematic diagram of part A; Figure 4 yes Figure 2 A partial enlarged schematic diagram of part B; Figure 5 yes Figure 1 A partial enlarged schematic diagram of part C in the middle; Figure 6 is a cross-sectional schematic diagram of an embodiment of the present application; Figure 7 yes Figure 6 It is a partial enlarged schematic diagram of part D.

[0028] Explanation of reference numerals: 1, sprocket shaft assembly; 11, oil filling port; 2, base; 21, first slide groove; 22, limit slide groove; 23, limit slider; 24, second positioning groove; 3, support assembly; 31, bottom plate; 311, first positioning groove; 32, support column; 33, support block; 331, placement groove; 34, support plate; 341, second slide groove; 342, positioning hole; 343, limit groove; 344, limit slot; 4, positioning assembly; 41, positioning rod; 42, operating panel; 5, rotating assembly; 51, circular plate; 52, rotating shaft ; 53. operating block; 54. limiting plate; 55. rotating rod; 6. clamping assembly; 61. clamping plate; 62. telescopic rod; 63. first spring; 64. clamping block; 65. clamping groove; 7. adjusting assembly; 71. second slider; 711. through hole; 712. first slot; 713. third slide groove; 72. first clamping block; 73. second clamping block; 74. second spring; 75. operating rod; 76. limiting block; 77. pull rod; 8. air pressure detection assembly; 81. fixing column; 82. top seat; 83. air pipe; 84. pressure gauge. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-7 This application is described in further detail.

[0030] The present application embodiment discloses a sprocket shaft assembly air tightness testing device, which is used to detect the air tightness of the sprocket shaft assembly 1. The sprocket shaft assembly 1 is provided with an oil filling port 11. Figure 1 and Figure 2 A sprocket shaft group 1 air tightness testing device includes a base 2, a support assembly 3, a positioning assembly 4, a rotating assembly 5, a clamping assembly 6, an adjustment assembly 7 and an air pressure detection assembly 8; the base 2 is horizontally arranged; the support assembly 3 is provided with two groups, and each group of support assemblies 3 includes a bottom plate 31, a support column 32, a support block 33 and a support plate 34; the bottom plate 31 is slidably arranged on the base 2 in the horizontal direction, the support column 32 is vertically arranged and fixed on the bottom plate 31, the support block 33 is fixedly arranged on the top of the support column 32, and an arc-shaped placement groove 331 is opened on the top of the support block 33, and the support plate 34 is vertically arranged and fixedly arranged on the bottom plate 31; the positioning assembly 4 is also provided with two groups, and the two groups of positioning assemblies 4 are arranged on the base 2 for positioning the bottom plate 31 in the horizontal direction.

[0031] Reference Figure 2 and Figure 3, the rotating assembly 5 is also provided with two groups, each group of the rotating assembly 5 includes a circular plate 51 and a rotating shaft 52, each rotating shaft 52 is slidably arranged on a supporting plate 34, and the sliding direction of the rotating shaft 52 is the vertical direction; the length direction of the rotating shaft 52 is the horizontal direction and is parallel to the sliding direction of the bottom plate 31; each circular plate 51 is fixedly sleeved on a rotating shaft 52, the axial direction of the circular plate 51 coincides with the axial direction of the rotating shaft 52, and an operating block 53 is fixedly arranged on the circumferential side of the circular plate 51; the clamping assembly 6 is also provided with two groups, each group of the clamping assembly 6 is arranged on a On a circular plate 51, the clamping assembly 6 is used to clamp the sprocket shaft group 1 to be tested; the adjusting assembly 7 is arranged on the supporting plate 34, and is used to adjust and position the height of the rotating shaft 52; the air pressure detection assembly 8 includes a fixed column 81, a top seat 82, an air pipe 83 and a pressure gauge 84; the fixed column 81 is vertically arranged and fixedly arranged on the base 2, the top seat 82 is horizontally arranged and fixedly arranged on the top of the fixed column 81, a high-pressure air pump is arranged in the top seat 82, and one end of the air pipe 83 is connected to the high-pressure air pump; a pressure gauge 84 connected to the high-pressure air pump is arranged on one side of the top seat 82.

[0032] The base 2 is set horizontally to ensure the stability of the entire device and facilitate operation and maintenance; the structural design of the support component 3 allows the sprocket shaft group 1 to be adjusted and fixed in multiple directions, thereby improving the flexibility and scope of application of the test. Through the setting of the two groups of support components 3, the two ends of the sprocket shaft group 1 can be placed on the two groups of support components 3 respectively, and the distance between the two groups of support components 3 can be adjusted through the sliding setting of the bottom plate 31, so as to place sprocket shaft groups 1 of different lengths, thereby increasing its scope of application; the use of the positioning component 4 can accurately control the position of the support plate 34, and the distance between the two bottom plates 31 can be adjusted according to the length of the sprocket shaft group 1, and the position of the bottom plate 31 can be positioned by the positioning component 4, thereby ensuring the stability and accuracy of the sprocket shaft group 1 during the test; the design of the rotating component 5 allows the sprocket shaft group 1 to be easily rotated to different angles, which is convenient for rotation and comprehensive inspection of air tightness; the structural design of the clamping component 6 can firmly clamp the sprocket shaft group 1 to prevent loosening or displacement during the test; the design of the operating block 53 can operate the rotation of the circular plate 51 through the operating block 53, thereby improving the convenience of operation. Since the sprocket shaft group 1 is heavy, the rotational friction will be large if it is placed on the support block 33. The use of the adjustment component 7 can quickly adjust the height of the rotating shaft 52, thereby adjusting the height of the clamping component 6, and then adjusting the height of the sprocket shaft group 1, and lifting the sprocket shaft group 1 from the support block 33 to facilitate the rotation of the sprocket shaft group 1; the integrated design of the air pressure detection component 8 simplifies the test process, improves the test efficiency, and at the same time ensures the accuracy and reliability of the test results.

[0033] During the inspection, first inject oil into the sprocket shaft group 1 through the oil filling port 11, place the sprocket shaft group 1 on the support assembly 3, then clamp the sprocket shaft group 1 through the clamping assembly 6, then lift the sprocket shaft group 1 through the adjusting assembly 7, and then rotate the sprocket shaft group 1 through the rotating assembly 5 to observe whether it leaks oil. If there is oil leakage, it proves that its air tightness does not meet the requirements. If there is no oil leakage, use the air pressure detection assembly 8 to detect it, insert the air pipe 83 into the oil filling port 11, add high-pressure gas to the sprocket shaft group 1 through the high-pressure air pump, and then observe whether the value of the pressure gauge 84 changes within the preset time. If there is no change, it proves that its air tightness is good. If there is a change, it proves that its air tightness does not meet the requirements. In summary, the air tightness testing device realizes dual detection of rotation detection and air pressure detection, improves the accuracy of the detection results, and reduces the difficulty of operation through the synergy between various components.

[0034] Reference Figure 1 and Figure 4 Two first slide grooves 21 are provided on the top surface of the base 2. The size of the first slide grooves 21 matches the size of the bottom plate 31. The bottom plate 31 is slidably arranged in the first slide grooves 21 along the horizontal direction; limited slide grooves 22 are provided on the sides of both sides of the first slide groove 21. A limited slider 23 fixedly connected to the bottom plate 31 is slidably arranged in the limited slide grooves 22. The air tightness test device of the sprocket shaft group 1 can realize the horizontal sliding of the bottom plate 31 on the base 2, so as to facilitate the adjustment of the position of the support assembly 3, so that the device can be more flexibly adapted to sprocket shaft groups 1 of different sizes, and the applicability and convenience of the test are improved. At the same time, through the cooperation of the limited slide grooves 22 and the limited slider 23, the stability and accuracy of the sliding of the bottom plate 31 are guaranteed, and the reliability of the test results is further improved.

[0035] Reference Figure 1 and Figure 4 The positioning assembly 4 includes a positioning rod 41 and an operating plate 42. A first positioning groove 311 is provided on the top surface of the bottom plate 31. The first positioning groove 311 penetrates the bottom plate 31 in the vertical direction. A plurality of second positioning grooves 24 are provided on the bottom surface of the first slide groove 21 and are evenly distributed along its length direction. The sizes of the first positioning groove 311 and the second positioning groove 24 are both compatible with the sizes of the positioning rod 41. The positioning rod 41 slides in the first positioning groove 311 in the vertical direction, and the bottom end of the positioning rod 41 can be inserted in any one of the second positioning grooves 24. The operating plate 42 is fixedly arranged at the top end of the positioning rod 41, and the operating plate 42 is always located outside the first positioning groove 311.

[0036] Specifically, the design of the positioning rod 41 and the operating panel 42 allows the operator to easily adjust the position of the support plate 34, and to achieve multi-point positioning by inserting the positioning rod 41 into the second positioning slot 24 at different positions, thereby improving the flexibility and application scope of the device. At the same time, the size of the positioning rod 41 matches the first positioning slot 311 and the second positioning slot 24, thereby ensuring the accuracy and stability of the positioning process. In addition, the setting of the operating panel 42 facilitates the operator to perform positioning operations, thereby improving work efficiency.

[0037] After the sprocket shaft group 1 is filled with oil and before it is placed on the support assembly 3, first measure the length of the sprocket shaft group 1, adjust the distance between the two groups of support assemblies 3 according to the length of the sprocket shaft group 1, adjust the position of the bottom plate 31, slide the bottom plate 31 to the corresponding position, align the first positioning groove 311 with the corresponding second positioning groove 24, and insert the positioning rod 41 into the first positioning groove 311 and the corresponding second positioning groove 24 to position the bottom plate 31.

[0038] Reference Figure 5 and Figure 6 The clamping assembly 6 includes a clamping plate 61, a telescopic rod 62, a first spring 63 and a clamping block 64; two clamping plates 61 are fixedly arranged on each circular plate 51, and the two clamping plates 61 located on the same circular plate 51 are arranged opposite to each other; the two clamping plates 61 located on the same circular plate 51 are fixedly connected to a telescopic rod 62 on one side close to each other, and a clamping block 64 is fixedly connected to a side of the telescopic rod 62 away from the clamping plate 61, and an arc-shaped clamping groove 65 is provided on the side of the clamping block 64 away from the telescopic rod 62.

[0039] The design of the clamping plate 61 and the telescopic rod 62 enables the clamping assembly 6 to have a certain degree of adaptability and can adapt to sprocket shaft groups 1 of different diameters; the use of the first spring 63 further enhances the stability of the clamping, ensuring that the sprocket shaft group 1 will not loosen or fall off during the test; the arc-shaped clamping groove 65 on the clamping block 64 can better fit the shape of the sprocket shaft group 1, reduce damage to the surface of the sprocket shaft group 1, and improve the accuracy of the test results.

[0040] Before placing the sprocket shaft group 1, first move the two clamping blocks 64 toward the sides close to the clamping plate 61, so that the telescopic rod 62 is shortened and the first spring 63 is in a compressed state, and then place the two ends of the sprocket shaft group 1 in the placement grooves 331 on the two support blocks 33; then release the clamping blocks 64, so that the two clamping blocks 64 can move toward the direction close to the sprocket shaft group 1 under the tension of the first spring 63, and clamp the sprocket shaft group 1.

[0041] Reference Figure 2 and Figure 3The adjusting assembly 7 includes a second slider 71, a second slide groove 341 is provided on the support plate 34, the length direction of the second slide groove 341 is the vertical direction, the second slide groove 341 penetrates the support plate 34 in the horizontal direction, the second slider 71 is slidably arranged in the second slide groove 341 in the vertical direction, a through hole 711 is provided on the second slider 71, the through hole 711 penetrates the second slider 71 in the horizontal direction, and the rotating shaft 52 is rotatably arranged in the through hole 711; the circular plate 51 is located on the side of the rotating shaft 52 close to the support column 32, and the side of the rotating shaft 52 away from the circular plate 51 is fixedly connected to the limiting plate 54, and the limiting plate 54 is located on the side of the support plate 34 away from the circular plate 51, and the circular plate 51 and the limiting plate 54 are both abutted against the side of the support plate 34.

[0042] The vertical sliding of the second slider 71 in the second slide groove 341 allows the height of the rotating shaft 52 to be flexibly adjusted; the rotation setting of the rotating shaft 52 in the through hole 711 ensures that the circular plate 51 and the clamping assembly 6 thereon can rotate freely in the horizontal direction, which is convenient for the operator to perform multi-angle testing on the sprocket shaft group 1; the design of the limit plate 54 effectively prevents the movement of the rotating shaft 52 in the horizontal direction, thereby ensuring stability during the test; the circular plate 51 and the limit plate 54 abut against the side of the support plate 34, further enhancing the stability and reliability of the structure and improving the accuracy of the test results.

[0043] After the clamping assembly 6 clamps the sprocket shaft assembly 1 , the height of the second slider 71 can be adjusted in the vertical direction to lift the sprocket shaft assembly 1 and prepare for the rotation of the sprocket shaft assembly 1 .

[0044] Reference Figure 2 and Figure 3 The limiting plate 54 is circular, and the axial direction of the limiting plate 54 coincides with the axial direction of the rotating shaft 52. A rotating rod 55 is fixedly connected to the side of the limiting plate 54 away from the rotating shaft 52. A stable connection between the limiting plate 54 and the rotating shaft 52 is achieved, and the precise fit between the limiting plate 54 and the supporting plate 34 is ensured. Specifically, the circular design of the limiting plate 54 makes it more convenient during installation, while ensuring the coaxiality of the limiting plate 54 and the rotating shaft 52, thereby improving the structural stability of the entire device. A rotating rod 55 is fixedly connected to the side of the limiting plate 54 away from the rotating shaft 52, so that the limiting plate 54 can be driven to rotate by operating the rotating rod 55, and then the rotating shaft 52, the circular plate 51 and the clamping assembly 6 can be driven to rotate, further improving the convenience of operation.

[0045] After the clamping assembly 6 is adjusted to a suitable height and positioned, the handheld rotating rod 55 is rotated to drive the limit plate 54 to rotate, and then the rotating shaft 52, the circular plate 51 and the clamping assembly 6 to rotate, thereby driving the sprocket shaft group 1 to rotate, and at the same time observe whether there is oil leakage on the sprocket shaft group 1.

[0046] Reference Figure 3 and Figure 6 The longitudinal section of the second slide groove 341 is cross-shaped, the longitudinal section of the second slider 71 is also cross-shaped and its size matches that of the second slide groove 341, an annular first clamping groove 712 is provided on the inner wall of the through hole 711, an annular first clamping block 72 is fixedly sleeved on the rotating shaft 52, and the first clamping block 72 is rotatably arranged in the first clamping groove 712. This makes the sliding of the second slider 71 in the second slide groove 341 more stable, effectively preventing the displacement or falling off during the sliding process, and improving the overall stability of the device. At the same time, the design of the first clamping groove 712 and the first clamping block 72 ensures the stable rotation of the rotating shaft 52 in the through hole 711, avoids the test error caused by looseness, and further improves the accuracy and reliability of the test results.

[0047] Reference Figure 6 and Figure 7 The adjusting assembly 7 also includes a second clamping block 73 and a second spring 74; a third sliding groove 713 is provided on the side surfaces of both sides of the second sliding block 71, the second clamping block 73 is slidably arranged in the third sliding groove 713, and the second spring 74 is arranged between the second clamping block 73 and the bottom of the third sliding groove 713, one end of the second spring 74 is fixedly connected to the second clamping block 73, and the other end is fixedly connected to the bottom of the third sliding groove 713; a plurality of positioning holes 342 evenly distributed in the vertical direction are provided on the side surfaces of both sides of the second sliding groove 341, and the positioning holes 342 penetrate the support plate 34 in the horizontal direction, and when the second clamping block 73 is aligned with any one of the positioning holes 342, the second clamping block 73 can be clamped in the positioning hole 342 under the tension of the corresponding second spring 74; an operating rod 75 is slidably penetrated in the positioning hole 342.

[0048] The adjustment component 7 can achieve precise adjustment and stable positioning of the height of the rotating shaft 52. Specifically: the design of the second clamping block 73 and the second spring 74 enables the second clamping block 73 to be automatically clamped in the positioning hole 342 under the tension of the corresponding second spring 74, thereby ensuring the stability of the rotating shaft 52 at different heights; the setting of the operating rod 75 facilitates manual adjustment of the position of the second clamping block 73 to disengage the positioning hole 342, thereby achieving rapid adjustment of the height of the rotating shaft 52; the uniform distribution design of the positioning holes 342 enables the rotating shaft 52 to be positioned at multiple preset heights to meet different testing requirements.

[0049] When adjusting the height of the second slider 71, while selecting a suitable height, align the third slide groove 713 with the corresponding height positioning hole 342, so that the second clamping block 73 is clamped in the positioning hole 342 under the tension of the second spring 74, thereby positioning the height of the second slider 71 to achieve height positioning of the circular plate 51, the clamping assembly 6 and the sprocket shaft group 1.

[0050] Reference Figure 6and Figure 7 A limiting groove 343 is provided on the side wall on one side in the horizontal direction of the positioning hole 342, and a limiting block 76 fixedly connected to the operating rod 75 is slidably arranged in the limiting groove 343. This makes the operating rod 75 more stable when inserted into the positioning hole 342, and avoids the operating rod 75 from coming out due to external vibration or improper operation, thereby improving the safety and reliability of the device. At the same time, the design of the limiting block 76 can also effectively prevent the operating rod 75 from shifting during use, ensuring the accuracy of the test results.

[0051] Reference Figure 6 and Figure 7 , the longitudinal section of the positioning hole 342 away from the second slide slot 341 is circular, and the longitudinal section of the operating rod 75 is also circular and its size matches the size of the positioning hole 342; the bottom surface of the limiting groove 343 is provided with a limiting slot 344 on the side close to the second slide slot 341, and the longitudinal section of the limiting slot 344 is fan-shaped. When the limiting block 76 is aligned with the limiting slot 344, it can rotate and be clamped in the limiting slot 344 under the action of its own gravity. At this time, the end of the operating rod 75 close to the second slide slot 341 is located at the boundary between the second slide slot 341 and the positioning hole 342. The end of the operating rod 75 away from the second slide slot 341 is fixedly connected with a pull rod 77, and the pull rod 77 is arranged opposite to the limit block 76 along the length direction of the operating rod 75. The operating rod 75 can be rotated by the pull rod 77, and the angle of the limit block 76 can also be judged by observing the angle of the pull rod 77.

[0052] When adjusting the height of the second slider 71, the limit block in the positioning hole 342 of the corresponding height is rotated into the limit slot 343 to keep it away from the limit slot 344, and then the limit blocks 76 in the limit slots 343 in the remaining positioning holes 342 are rotated and clamped in the limit slots 344, so that the corresponding end of the operating rod 75 close to the second slide slot 341 is located at the boundary between the second slide slot 341 and the positioning hole 342, so that the second block 73 can only be clamped in the positioning hole 342 of the corresponding height, avoiding the second block 73 from being clamped at the remaining heights.

[0053] The implementation principle of the air tightness test device of the sprocket shaft assembly 1 in the embodiment of the present application is: During the inspection, first inject oil into the sprocket shaft group 1 through the oil filling port 11, place the sprocket shaft group 1 on the support assembly 3, then clamp the sprocket shaft group 1 through the clamping assembly 6, then lift the sprocket shaft group 1 through the adjusting assembly 7, and then rotate the sprocket shaft group 1 through the rotating assembly 5 to observe whether it leaks oil. If there is oil leakage, it proves that its air tightness does not meet the requirements. If there is no oil leakage, use the air pressure detection assembly 8 to detect it, insert the air pipe 83 into the oil filling port 11, add high-pressure gas to the sprocket shaft group 1 through the high-pressure air pump, and then observe whether the value of the pressure gauge 84 changes within the preset time. If there is no change, it proves that its air tightness is good. If there is a change, it proves that its air tightness does not meet the requirements. In summary, the air tightness testing device realizes dual detection of rotation detection and air pressure detection, improves the accuracy of the detection results, and reduces the difficulty of operation through the synergy between various components.

[0054] After the sprocket shaft group 1 is filled with oil and before it is placed on the support assembly 3, first measure the length of the sprocket shaft group 1, adjust the distance between the two groups of support assemblies 3 according to the length of the sprocket shaft group 1, adjust the position of the bottom plate 31, slide the bottom plate 31 to the corresponding position, align the first positioning groove 311 with the corresponding second positioning groove 24, and insert the positioning rod 41 into the first positioning groove 311 and the corresponding second positioning groove 24 to position the bottom plate 31.

[0055] Before placing the sprocket shaft group 1, first move the two clamping blocks 64 toward the sides close to the clamping plate 61, so that the telescopic rod 62 is shortened and the first spring 63 is in a compressed state, and then place the two ends of the sprocket shaft group 1 in the placement grooves 331 on the two support blocks 33; then release the clamping blocks 64, so that the two clamping blocks 64 can move toward the direction close to the sprocket shaft group 1 under the tension of the first spring 63, and clamp the sprocket shaft group 1.

[0056] After the clamping assembly 6 clamps the sprocket shaft assembly 1 , the height of the second slider 71 can be adjusted in the vertical direction to lift the sprocket shaft assembly 1 and prepare for the rotation of the sprocket shaft assembly 1 .

[0057] When adjusting the height of the second slider 71, while selecting a suitable height, align the third slide groove 713 with the corresponding height positioning hole 342, so that the second clamping block 73 is clamped in the positioning hole 342 under the tension of the second spring 74, thereby positioning the height of the second slider 71 to achieve height positioning of the circular plate 51, the clamping assembly 6 and the sprocket shaft group 1.

[0058] When adjusting the height of the second slider 71, the limit block in the positioning hole 342 of the corresponding height is rotated into the limit slot 343 to keep it away from the limit slot 344, and then the limit blocks 76 in the limit slots 343 in the remaining positioning holes 342 are rotated and clamped in the limit slots 344, so that the corresponding end of the operating rod 75 close to the second slide slot 341 is located at the boundary between the second slide slot 341 and the positioning hole 342, so that the second block 73 can only be clamped in the positioning hole 342 of the corresponding height, avoiding the second block 73 from being clamped at the remaining heights.

[0059] After the clamping assembly 6 is adjusted to a suitable height and positioned, the handheld rotating rod 55 is rotated to drive the limit plate 54 to rotate, and then the rotating shaft 52, the circular plate 51 and the clamping assembly 6 to rotate, thereby driving the sprocket shaft group 1 to rotate, and at the same time observe whether there is oil leakage on the sprocket shaft group 1.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sprocket shaft assembly air tightness test device, characterized in that: The invention comprises a base (2), a support assembly (3), a positioning assembly (4), a rotating assembly (5), a clamping assembly (6), an adjustment assembly (7) and an air pressure detection assembly (8); the base (2) is arranged horizontally; the support assembly (3) is provided with two groups, each group of the support assembly (3) comprises a bottom plate (31), a support column (32), a support block (33) and a support plate (34); the bottom plate (31) is arranged on the base (2) in a sliding manner in a horizontal direction, the support column (32) is arranged vertically and fixed on the bottom plate (31), the support block (33) is fixedly arranged on the top of the support column (32), the top of the support block (33) is provided with an arc-shaped placement groove (331), and the support plate (34) is arranged vertically and fixedly arranged on the bottom plate (31); The positioning assembly (4) is also provided with two groups, and the two groups of the positioning assembly (4) are both arranged on the base (2) and are used to position the bottom plate (31) in the horizontal direction; the rotating assembly (5) is also provided with two groups, and each group of the rotating assembly (5) comprises a circular plate (51) and a rotating shaft (52), each of the rotating shafts (52) is slidably arranged on one of the supporting plates (34), and the sliding direction of the rotating shaft (52) is the vertical direction; the length direction of the rotating shaft (52) is the horizontal direction and is parallel to the sliding direction of the bottom plate (31); each of the circular plates (51) is fixedly sleeved on one of the rotating shafts (52), and the axial direction of the circular plate (51) coincides with the axial direction of the rotating shaft (52), and an operating block (53) is fixedly arranged on the circumferential side of the circular plate (51); The clamping assembly (6) is also provided with two groups, each group of the clamping assembly (6) is arranged on one of the circular plates (51), and the clamping assembly (6) is used to clamp the sprocket shaft assembly (1) to be tested; the adjusting assembly (7) is arranged on the supporting plate (34), and is used to adjust and position the height of the rotating shaft (52); the air pressure detection assembly (8) comprises a fixed column (81), a top seat (82), an air pipe (83) and a pressure gauge (84); the fixed column (81) is vertically arranged and fixedly arranged on the base (2), the top seat (82) is horizontally arranged and fixedly arranged on the top of the fixed column (81), a high-pressure air pump is arranged in the top seat (82), and one end of the air pipe (83) is connected to the high-pressure air pump; a pressure gauge (84) connected to the high-pressure air pump is arranged on one side of the top seat (82).

2. A sprocket shaft assembly air tightness testing device according to claim 1, characterized in that: Two first slide grooves (21) are provided on the top surface of the base (2), the length direction of the first slide grooves (21) is the same as the length direction of the bottom plate (31), the size of the first slide grooves (21) is adapted to the size of the bottom plate (31), and the bottom plate (31) is slidably arranged in the first slide grooves (21) along the horizontal direction; limiting slide grooves (22) are provided on the side surfaces on both sides of the first slide grooves (21), and limiting sliding blocks (23) fixedly connected to the bottom plate (31) are slidably arranged in the limiting slide grooves (22).

3. A sprocket shaft assembly air tightness testing device according to claim 2, characterized in that: The positioning assembly (4) comprises a positioning rod (41) and an operating plate (42); a first positioning groove (311) is provided on the top surface of the bottom plate (31), and the first positioning groove (311) penetrates the bottom plate (31) in a vertical direction; a plurality of second positioning grooves (24) are provided on the bottom surface of the first slide groove (21) and are evenly distributed along the length direction thereof; the sizes of the first positioning groove (311) and the second positioning groove (24) are both adapted to the sizes of the positioning rod (41); the positioning rod (41) is slidably penetrated in the first positioning groove (311) in a vertical direction, and the bottom end of the positioning rod (41) can be penetrated in any one of the second positioning grooves (24); the operating plate (42) is fixedly arranged at the top end of the positioning rod (41), and the operating plate (42) is always located outside the first positioning groove (311).

4. A sprocket shaft assembly air tightness testing device according to claim 3, characterized in that: The clamping assembly (6) comprises a clamping plate (61), a telescopic rod (62), a first spring (63) and a clamping block (64); two clamping plates (61) are fixedly arranged on each circular plate (51), and the two clamping plates (61) located on the same circular plate (51) are arranged opposite to each other; the two clamping plates (61) located on the same circular plate (51) are fixedly connected to a telescopic rod (62) on one side close to each other, and a clamping block (64) is fixedly connected to a side of the telescopic rod (62) away from the clamping plate (61), and an arc-shaped clamping groove (65) is provided on a side of the clamping block (64) away from the telescopic rod (62).

5. The sprocket shaft assembly air tightness testing device according to claim 4, characterized in that: The adjusting assembly (7) comprises a second sliding block (71), a second sliding groove (341) is provided on the supporting plate (34), the length direction of the second sliding groove (341) is vertical, the second sliding groove (341) penetrates the supporting plate (34) in the horizontal direction, the second sliding block (71) is slidably arranged in the second sliding groove (341) in the vertical direction, the second sliding block (71) is provided with a through hole (711), and the through hole (711) penetrates the second sliding block (711) in the horizontal direction. Two sliding blocks (71), the rotating shaft (52) is rotatably arranged in the through hole (711); the circular plate (51) is located on a side of the rotating shaft (52) close to the supporting column (32), and a side of the rotating shaft (52) away from the circular plate (51) is fixedly connected to a limiting plate (54), and the limiting plate (54) is located on a side of the supporting plate (34) away from the circular plate (51), and the circular plate (51) and the limiting plate (54) are both in contact with the side surface of the supporting plate (34).

6. The sprocket shaft assembly air tightness testing device according to claim 5, characterized in that: The limiting plate (54) is circular, the axial direction of the limiting plate (54) coincides with the axial direction of the rotating shaft (52), and a rotating rod (55) is fixedly connected to the side of the limiting plate (54) away from the rotating shaft (52).

7. The sprocket shaft assembly air tightness testing device according to claim 6, characterized in that: The longitudinal section of the second slide groove (341) is cross-shaped, the longitudinal section of the second sliding block (71) is also cross-shaped and its size is compatible with the size of the second slide groove (341), an annular first clamping groove (712) is opened on the inner side wall of the through hole (711), an annular first clamping block (72) is fixedly sleeved on the rotating shaft (52), and the first clamping block (72) is rotatably set in the first clamping groove (712).

8. The sprocket shaft assembly air tightness testing device according to claim 7, characterized in that: The adjusting assembly (7) further comprises a second clamping block (73) and a second spring (74); a third slide groove (713) is provided on the side surfaces of both sides of the second sliding block (71); the second clamping block (73) is slidably arranged in the third slide groove (713); the second spring (74) is arranged between the second clamping block (73) and the bottom of the third slide groove (713); one end of the second spring (74) is fixedly connected to the second clamping block (73); and the other end is fixedly connected to the groove of the third slide groove (713). The second slide groove (341) is fixedly connected to the bottom; a plurality of positioning holes (342) evenly distributed in the vertical direction are opened on the side surfaces on both sides of the second slide groove (341); the positioning holes (342) penetrate the support plate (34) in the horizontal direction; when the second clamping block (73) is aligned with any one of the positioning holes (342), the second clamping block (73) can be clamped in the positioning hole (342) under the tension of the corresponding second spring (74); an operating rod (75) is slidably penetrated in the positioning hole (342).

9. The sprocket shaft assembly air tightness testing device according to claim 8, characterized in that: A limiting groove (343) is provided on a side wall on one side in the horizontal direction of the positioning hole (342), and a limiting block (76) fixedly connected to the operating rod (75) is slidably disposed in the limiting groove (343).

10. The sprocket shaft assembly air tightness testing device according to claim 9, characterized in that: The longitudinal section of the positioning hole (342) away from the second slide groove (341) is circular, and the longitudinal section of the operating rod (75) is also circular and its size is compatible with the size of the positioning hole (342); a limiting slot (344) is provided on the bottom surface of the limiting slot (343) close to the second slide groove (341), and the longitudinal section of the limiting slot (344) is fan-shaped. When the limiting block (76) is aligned with the limiting slot (344), it can rotate and be clamped in the limiting slot (344) under the action of its own gravity. At this time, the end of the operating rod (75) close to the second slide groove (341) is located at the boundary between the second slide groove (341) and the positioning hole (342).

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