Hydraulic support performance testing device

Abstract

The invention relates to the technical field of equipment part testing, in particular to a hydraulic support performance testing device. The hydraulic support performance testing device comprises a detection bench; the servo motor is fixedly connected to the detection table, the detection table is provided with a pneumatic clamp, and the pneumatic clamp is used for fixing an inner ring of a bearing; the vibration detection module is fixedly connected to the detection table; the pressure applying piece is connected to the detection table in a sliding manner; the push block is connected to the pressure applying piece in a sliding manner; the first elastic piece is arranged between the push block and the pressure applying piece; the driving assembly is arranged on the detection table and is used for driving the pressure applying piece to move upwards, so that the bearing is stressed to simulate an actual running state; and the fixing assembly is arranged on the detection table. Through compression of the first elastic piece, the first elastic piece accumulates elastic force and acts on the outer ring of the bearing through the pressure applying piece, so that the environment that the outer ring is circumferentially stressed in actual operation of the hydraulic support is simulated, and the accuracy degree of bearing vibration detection is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment component testing, and in particular to a hydraulic support performance testing device. Background Art

[0002] Hydraulic supports are key equipment in fully mechanized coal mining faces, primarily used for roof support, surrounding rock management, and providing operating space for coal mining machines. The equipment uses a hydraulic system to support, push, and adjust the roof to ensure safe and efficient mining operations. When in use, the hydraulic support places the top beam in direct contact with the roof. By rotating the top beam, it rotates relative to the base, thereby adjusting the support height of the top beam. During operation, the connection between the top beam and the base is always under high load. Therefore, the connecting bearings between the top beam and the base are crucial, and their performance directly affects the stability and service life of the hydraulic support. Therefore, the bearings at the connection between the top beam and the base need to be vibration tested before installation. Bearings with problems such as loose inner and outer rings, wear, and foreign matter intrusion are removed to ensure that bearings with all values ​​meet the standards are installed in the hydraulic support. However, existing bearing vibration detection devices fail to accurately simulate the actual force relationship of the bearings during hydraulic support operation, resulting in inaccurate vibration detection data and affecting the reliability of the detection results. Summary of the Invention

[0003] In order to overcome the shortcoming of inaccurate vibration detection data mentioned in the above background technology, the present invention provides a hydraulic support performance testing device.

[0004] The technical solutions of the present invention are as follows:

[0005] A hydraulic support performance testing device, comprising:

[0006] Testing bench;

[0007] A servo motor is fixedly connected to the testing platform. The testing platform is provided with a pneumatic clamp. The servo motor is used to drive the pneumatic clamp to rotate. The pneumatic clamp is used to fix the inner ring of the bearing.

[0008] A vibration detection module, fixedly connected to the detection platform;

[0009] a pressure member, slidably connected to the testing platform;

[0010] a push block, slidably connected to the pressure member;

[0011] a first elastic member, disposed between the push block and the pressure member;

[0012] A driving assembly, provided on the testing platform, for driving the pressure member to move upward so that the bearing is subjected to a force simulating an actual operating state;

[0013] The fixing assembly is arranged on the detection platform and is used for fixing the outer ring of the bearing.

[0014] As a further preferred solution, the drive assembly includes:

[0015] A rotating shaft, rotatably connected to the detection platform;

[0016] a first gear fixedly connected to the rotating shaft;

[0017] A second gear is rotatably connected to the detection platform, the first gear is transmission-connected to the second gear, and the second gear is fixedly connected to an extrusion block, and the extrusion block is used to drive the push block to move along the pressure member;

[0018] The transmission assembly is arranged in the detection platform and is used to enable the output shaft of the servo motor to drive the rotating shaft to rotate.

[0019] As a further preferred solution, the transmission assembly includes:

[0020] A reducer, fixedly connected to the testing platform;

[0021] a third gear, fixedly connected to the output end of the reducer;

[0022] a fourth gear, fixedly connected to the rotating shaft, and the third gear is transmission-connected to the fourth gear;

[0023] The power transmission component is arranged on the output shaft of the servo motor and is used to drive the input end of the reducer to rotate.

[0024] As a further preferred solution, the fixing assembly includes:

[0025] An electric push rod, fixedly connected to the testing platform;

[0026] The fixing frame is arranged at the telescopic end of the electric push rod.

[0027] As a further preferred solution, the detection platform is provided with a support frame, and the support frame cooperates with the fixing frame to support the outer ring of the bearing.

[0028] As a further preferred solution, a second elastic element is provided between the telescopic end of the electric push rod and the fixing frame.

[0029] As a further preferred solution, it also includes:

[0030] The rotating assembly is provided on the fixed frame and is used to drive the outer ring of the bearing to rotate. The rotating assembly includes:

[0031] The second pulley has two parts, one of which is fixedly connected to the fixed frame and the other is splined to the rotating shaft. The fixed frame is rotatably and slidably connected to the telescopic end of the electric push rod, the support frame is rotatably connected to the detection platform, and the fixed frame and the second pulley on the rotating shaft are jointly limitedly slidably connected to a connecting frame;

[0032] The second transmission belt is wound between the two second pulleys.

[0033] As a further preferred solution, the first gear is a missing gear, and the central angle corresponding to the tooth portion of the first gear is in the range of 10° to 30°, which is used to intermittently drive the first gear to rotate.

[0034] As a further preferred solution, it also includes:

[0035] A limiting assembly is provided on the second gear and is used to lock the second gear in one direction so that the extrusion block can only rotate in one direction. The limiting assembly includes:

[0036] a ratchet wheel fixedly connected to the second gear;

[0037] A limit block is slidably connected to the detection platform, and the limit block is used to limit the ratchet wheel in one direction;

[0038] The third elastic element is arranged between the detection platform and the limit block.

[0039] As a further preferred solution, the third gear is a missing gear, and the center angle corresponding to the tooth portion on the third gear is 180°.

[0040] Beneficial technical effects of the present invention:

[0041] 1. The present invention compresses the first elastic member, causing the first elastic member to accumulate elastic force and act on the outer ring of the bearing through the pressure member, so as to simulate the circumferential force environment of the outer ring of the hydraulic support during actual operation, thereby improving the accuracy of bearing vibration detection.

[0042] 2. A bidirectional clamping force is applied to the outer ring of the bearing through the support frame and the fixing frame. At the same time, the second elastic element accumulates pressure, and the support frame and the fixing frame flexibly clamp the outer ring of the bearing, thereby improving the stability of the outer ring of the bearing.

[0043] 3. Every time the outer ring of the bearing is driven by the fixed frame to rotate one circle, the external force of the pressure member on the outer ring of the bearing increases once. During this period, the vibration detection module can collect vibration parameters of different forces at different positions of the outer ring of the bearing, thereby improving the accuracy of bearing vibration detection.

[0044] 4. By making the fixed frame drive the outer ring of the bearing to rotate intermittently, the vibration detection module alternately collects the vibration signals of the bearing outer ring when it is rotating and when it is stationary, realizing detection comparison and improving the accuracy of bearing vibration detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0046] Figure 2 Schematic diagram of the three-dimensional structure of the pressure member and the first elastic member of the present invention;

[0047] Figure 3 Schematic diagram of the three-dimensional structure of the rotating shaft and the first gear of the present invention;

[0048] Figure 4 Schematic diagram of the three-dimensional structure of the third gear and the fourth gear of the present invention;

[0049] Figure 5 Schematic diagram of the three-dimensional structure of the electric push rod and the fixing frame of the present invention;

[0050] Figure 6 Schematic diagram of the three-dimensional structure of the second pulley of the present invention;

[0051] Figure 7 It is a schematic diagram of the three-dimensional structure of the ratchet and the limit block of the present invention.

[0052] Marked in the figure: 1-testing table, 2-servo motor, 3-pneumatic clamp, 4-vibration detection module, 5-pressure member, 6-first elastic member, 7-push block, 201-rotating shaft, 202-first gear, 203-second gear, 204-extrusion block, 205-reducer, 206-third gear, 207-fourth gear, 208-first pulley, 209-first transmission belt, 301-electric push rod, 302-fixed frame, 303-support frame, 304-second elastic element, 401-second pulley, 402-second transmission belt, 403-ratchet, 404-limiting block, 405-third elastic element. DETAILED DESCRIPTION

[0053] To make the objectives, technical solutions, and beneficial effects of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. Certain embodiments of the present invention will be more fully described below with reference to the accompanying drawings, some, but not all, of which are illustrated. The various embodiments of the present invention may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention satisfies applicable legal requirements.

[0054] In the description of the present invention, it should be noted that the terms "inner," "outer," "upper," "lower," "front," and "rear," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0055] The connecting bearings between the beam and the base have an important impact on the stability and service life of the hydraulic support. Therefore, the vibration characteristics of the bearings at the connection parts must be tested before installation. Through testing, bearings with defects such as loose inner and outer rings, wear, and foreign matter entry can be screened out, thereby ensuring that the performance indicators of the bearings installed on the hydraulic support meet the standards. Therefore, it is of great significance to detect the vibration of the hydraulic support bearings.

[0056] However, existing bearing vibration detection devices have certain limitations. These devices cannot fully simulate the actual force relationship that the bearings of the hydraulic support are subjected to during actual operation. This means that existing detection methods cannot accurately reflect the vibration conditions of the bearings under actual working conditions, resulting in inaccurate vibration detection data. This inaccurate data will affect the assessment of the bearing status.

[0057] A hydraulic support performance testing device, such as Figure 1-Figure 3 As shown, it includes: a testing platform 1; a servo motor 2, fixedly connected to the testing platform 1, the testing platform 1 is provided with a pneumatic clamp 3, the servo motor 2 is used to drive the pneumatic clamp 3 to rotate, and the pneumatic clamp 3 is used to fix the inner ring of the bearing; a vibration detection module 4, fixedly connected to the testing platform 1; a pressure piece 5, slidably connected to the testing platform 1; a push block 7, slidably connected to the pressure piece 5; a first elastic piece 6, arranged between the push block 7 and the pressure piece 5; a driving component, arranged on the testing platform 1, used to drive the pressure piece 5 to move upward, so that the bearing is subjected to force to simulate the actual operating state; a fixing component, arranged on the testing platform 1, used to fix the outer ring of the bearing.

[0058] In the above scheme, the detection platform 1 is a rigid structure as a whole, serving as the support body of the entire device, and a control module and a data analysis module are provided on the detection platform 1. The control module is used to adjust various parameters, and the data analysis module is used to analyze the detected parameters, thereby reflecting the health parameters of the bearing. The pneumatic clamp 3 is driven by gas, with fast response speed and stable support. The vibration detection module 4 is used to collect the vibration signal of the bearing during operation. The pressure member 5 is fitted with the outer ring of the bearing. The pressure member 5 is composed of a support rod and a roller. The first elastic member 6 is a spring, which is used to compress and accumulate elastic force, and apply a force to the outer ring of the bearing with the help of the pressure member 5, so as to simulate the stress state of the bearing during actual operation and improve the accuracy of bearing vibration detection.

[0059] Specifically, such as Figure 2-Figure 5 As shown, the driving assembly includes: a rotating shaft 201, which is rotatably connected to the detection platform 1; a first gear 202, which is fixedly connected to the rotating shaft 201; a second gear 203, which is rotatably connected to the detection platform 1, and the first gear 202 is transmission-connected to the second gear 203, and the second gear 203 is fixedly connected to an extrusion block 204, which is used to drive the push block 7 to move along the pressure member 5; a transmission assembly, which is arranged in the detection platform 1, is used to make the output shaft of the servo motor 2 drive the rotating shaft 201 to rotate.

[0060] In the above scheme, the rotating shaft 201 is located at the bottom of the detection table 1, and the outer contour of the cross section of the extrusion block 204 is spliced ​​end to end by a spiral line and a straight line. When the push block 7 slides along the side of the spiral line of the extrusion block 204, the push block 7 is forced to move upward along the pressure member 5, and the first elastic member 6 is compressed. When the push block 7 slides along the side of the straight line of the extrusion block 204, the push block 7 is pushed by the first elastic member 6 to return to the initial state. Initially, the push block 7 fits the outer contour of the extrusion block 204, and the push block 7 is at the closest point to the rotation axis of the second gear 203.

[0061] Specifically, such as Figure 2 and Figure 4 As shown, the transmission assembly includes: a reducer 205, fixedly connected to the detection platform 1; a third gear 206, fixedly connected to the output end of the reducer 205; a fourth gear 207, fixedly connected to the rotating shaft 201, and the third gear 206 and the fourth gear 207 are in transmission connection; a power transmission assembly, arranged on the output shaft of the servo motor 2, for driving the input end of the reducer 205 to rotate.

[0062] In the above scheme, the power transmission component is specifically composed of two first pulleys 208 and a first transmission belt 209. The two first pulleys 208 are respectively fixedly connected to the output shaft of the servo motor 2 and the input end of the reducer 205. By using the driving force of the servo motor 2, the rotating shaft 201 is driven to rotate, thereby improving energy utilization and reducing costs.

[0063] Specifically, such as Figure 1 and, Figure 5 and Figure 6 As shown, the fixing assembly includes: an electric push rod 301, fixedly connected to the detection platform 1; a fixing frame 302, arranged at the telescopic end of the electric push rod 301; the detection platform 1 is provided with a support frame 303, and the support frame 303 and the fixing frame 302 cooperate to support the outer ring of the bearing; a second elastic element 304 is provided between the telescopic end of the electric push rod 301 and the fixing frame 302.

[0064] In the above scheme, the fixing frame 302 and the supporting frame 303 are both composed of a circular ring and fixed columns distributed at equal intervals around the circumference. The electric push rod 301 is located on the front side of the detection platform 1. The central axis of the fixing frame 302, the central axis of the pneumatic clamp 3 and the central axis of the supporting frame 303 coincide with each other. The electric push rod 301 drives the fixing frame 302 to fix the outer ring of the bearing to avoid resonance and affect the detection accuracy of the vibration detection module 4. The fixing frame 302 and the supporting frame 303 fix the outer ring of the bearing in both directions so that the outer ring of the bearing is evenly stressed to prevent eccentric wear between the outer ring and the inner ring of the bearing. The second elastic element 304 is a spring, which is used to compress and accumulate elastic force to flexibly support the outer ring of the bearing to avoid hard contact and damage to the outer ring of the bearing.

[0065] When a vibration test is required on the bearing, the staff will place the bearing sleeve on the outside of the pneumatic fixture 3, fit the outer ring of the bearing with the roller of the pressure member 5, and fit the outer ring of the bearing with the support frame 303, then open the pneumatic fixture 3, the pneumatic fixture 3 fixes the inner ring of the bearing, and then turn on the electric push rod 301, the telescopic end of the electric push rod 301 drives the fixed frame 302 to move, so that the fixed frame 302 contacts the outer ring of the bearing, and then the telescopic end of the electric push rod 301 continues to move. At this time, the telescopic end of the electric push rod 301 slides along the fixed frame 302, and at the same time the second elastic element 304 is compressed, the second elastic element 304 accumulates pressure, and the accumulated pressure of the second elastic element 304 is released through the fixed frame 302. The pressure is transmitted to the outer ring of the bearing, so that a bidirectional action is applied to the outer ring of the bearing through the support frame 303 and the fixing frame 302. At the same time, the second elastic element 304 accumulates pressure to flexibly clamp the outer ring of the bearing to avoid hard contact and damage to the outer ring of the bearing. This is done until the second elastic element 304 accumulates to a specific value (dynamically changed according to different bearing models to ensure that the outer ring of the bearing is fixed and tightened). Then, the electric push rod 301 is turned off and the servo motor 2 is turned on at the same time. The output shaft of the servo motor 2 drives the inner ring of the bearing to start rotating through the pneumatic clamp 3. The rotation of the inner ring of the bearing generates vibration. At this time, the external vibration detection module 4 collects the vibration parameters of the bearing for analyzing the health status of the bearing.

[0066] During the above-mentioned bearing detection process, when the servo motor 2 is turned on, the output shaft of the servo motor 2 drives the input shaft of the reducer 205 to rotate through the two first pulleys 208 and the first transmission belt 209, and then the power is output from its output end after being decelerated by the reducer 205, and drives the third gear 206 to rotate. The third gear 206 drives the rotating shaft 201 to rotate through the fourth gear 207, and the rotating shaft 201 drives the second gear 203 to rotate through the first gear 202. The second gear 203 drives the extrusion block 204 thereon to rotate synchronously, and the extrusion block 204 squeezes the push block 7, causing it to move upward along the pressure member 5. At the same time, the first elastic member 6 is compressed, and the first elastic member 6 accumulates elastic force and acts on the outer ring of the bearing through the pressure member 5 to simulate the environment where the outer ring side wall of the hydraulic support is subjected to force during actual operation, thereby improving the accuracy of the bearing vibration detection. This is done until the extrusion block 204 rotates to the initial position, and the first elastic member 6 drives the push block 7 to reset to the initial state. At this time, the vibration detection of the bearing is completed.

[0067] When the bearing inspection is completed, the servo motor 2 is turned off and the electric push rod 301 is turned on at the same time, so that the telescopic end of the electric push rod 301 drives the fixing frame 302 to separate from the outer ring of the bearing, releasing the fixation of the outer ring of the bearing. At the same time, the second elastic element 304 is reset to its initial state, and this is done until the telescopic end of the electric push rod 301 drives the fixing frame 302 to reset to its initial state, and then the pneumatic clamp 3 is turned on to release the fixation of the inner ring of the bearing, and the bearing that has been inspected is removed. When the bearing needs to be vibrated again, the above steps are repeated.

[0068] In this embodiment, the telescopic end of 301 is slidably connected to the fixed frame 302, and the support frame 303 is fixedly connected to the detection platform 1, but this is limited to this embodiment. In other subsequent embodiments, the telescopic end of 301 is slidably and rotatably connected to the fixed frame 302, and the support frame 303 is rotatably connected to the detection platform 1. Please refer to the specific description in the subsequent embodiments.

[0069] In a further embodiment, Figure 5 and Figure 6 As shown, it also includes: a rotating component, which is arranged on the fixed frame 302 and is used to drive the outer ring of the bearing to rotate. The rotating component includes: a second pulley 401, which has two, one fixedly connected to the fixed frame 302, and the other splined to the rotating shaft 201. The fixed frame 302 is rotatably and slidably connected to the telescopic end of the electric push rod 301, the support frame 303 is rotatably connected to the detection table 1, and the fixed frame 302 and the second pulley 401 on the rotating shaft 201 are jointly limited and slidably connected to the connecting frame; the second transmission belt 402 is wound between the two first pulleys 401; the first gear 202 is a missing gear, and the central angle reading range corresponding to the tooth portion of the first gear 202 is 10° to 30°, which is used to intermittently drive the first gear 202 to rotate.

[0070] In the above scheme, the rotating shaft 201 drives the fixed frame 302 to rotate through the two second pulleys 401 and the second transmission belt 402, so that the fixed frame 302 cooperates with the support frame 303 to drive the outer ring of the bearing to rotate synchronously, thereby continuously changing the force position of the outer ring of the bearing. The first gear 202 drives the second gear 203 to rotate 10° to 30° every time it rotates one circle. The first gear 202 rotates one circle, and the outer ring of the bearing also rotates one circle. During the period when the first gear 202 and the second gear 203 are not engaged, the force of the pressure member 5 on the outer ring of the bearing remains unchanged, and the force position of the pressure member 5 on the outer ring of the bearing is continuously changed. After each rotation of the outer ring of the bearing, the force of the pressure member 5 on the outer ring of the bearing increases synchronously. In this cycle, different pressures are applied to the side wall of the outer ring of the bearing, and the pressure position of the outer ring of the bearing is continuously changed, so that the vibration detection module 4 collects vibration parameters of the bearing under different states, thereby improving the accuracy of bearing vibration detection.

[0071] Specifically, such as Figure 2 and Figure 7 As shown, it also includes: a limit assembly, which is arranged on the second gear 203 and is used to lock the first gear 202 in one direction so that the extrusion block 204 can only rotate in one direction. The limit assembly includes: a ratchet 403, which is fixedly connected to the second gear 203; a limit block 404, which is slidably connected to the detection platform 1, and the limit block 404 is used to limit the ratchet 403 in one direction; a third elastic element 405, which is arranged between the detection platform 1 and the limit block 404; the third gear 206 is a missing gear, and the center angle corresponding to the tooth portion on the third gear 206 is 180°.

[0072] In the above solution, the central axis of the ratchet 403 coincides with the central axis of the second gear 203, and the limit block 404 has an inclined surface that fits the ratchet 403, which is used to limit the ratchet 403 in one direction (to Figure 7 Taking the right view as an example, the ratchet 403 can only rotate clockwise and cannot rotate counterclockwise under the action of the limit block 404). The third elastic element 405 is a tension spring, which is used to drive the limit block 404 to reset, so as to prevent the second gear 203 from rotating in the opposite direction when it is not engaged with the first gear 202. The third gear 206 intermittently drives the rotating shaft 201 to rotate through the fourth gear 207, so that the fixing frame 302 drives the outer ring of the bearing to rotate intermittently, so that the vibration detection module 4 alternately collects the vibration signals of the bearing outer ring when it is rotating and stationary, thereby improving the accuracy of bearing vibration detection.

[0073] When the bearing is subjected to vibration detection, the rotating shaft 201 synchronously drives the second pulley 401 thereon to rotate, so that the second pulley 401 drives another second pulley 401 to rotate through the second transmission belt 402, thereby rotating the fixed frame 302, and the fixed frame 302 cooperates with the support frame 303 to drive the clamped outer ring of the bearing to rotate synchronously, thereby changing the force position of the outer ring of the bearing. It can be seen here that when the rotating shaft 201 rotates one circle, the corresponding fixed frame 302 rotates one circle, that is, the outer ring of the bearing rotates one circle. At the same time, the first gear 202 is a missing gear. When the rotating shaft 201 drives the first gear 202 to rotate one circle, the first gear 202 will drive the second gear 203 to rotate a certain angle (10° to 30°), that is, the second gear 203 drives the extrusion block 204 thereon to rotate the same angle. The squeezing block 204 drives the pushing block 7 to move upward by the same distance, and the first elastic member 6 is compressed, so that the pressure member 5 applies a force to the outer ring of the bearing. While waiting for the rotating shaft 201 to drive the first gear 202 and the second gear 203 to engage again, the force of the pressure member 5 on the outer ring of the bearing remains unchanged, and the outer ring of the bearing will rotate one circle, constantly changing the position of the pressure member 5 on the outer ring of the bearing. Similarly, when the first gear 202 and the second gear 203 engage next time, the squeezing block 204 pushes the pushing block 7 again, and the first elastic member 6 is further compressed, so that the force of the pressure member 5 on the outer ring of the bearing increases. This cycle continues until the pushing block 7 slides to the initial position along the contour of the squeezing block 204. At this time, the first elastic member 6 pushes the pushing block 7 to return to the initial position, and the bearing vibration detection is completed.

[0074] When the first gear 202 drives the second gear 203 to rotate, the second gear 203 drives the ratchet 403 to rotate synchronously, and the ratchet 403 rotates to squeeze the limit block 404. The limit block 404 slides upward along the detection platform 1 under the squeezing force, and the third elastic element 405 is stretched. This is done until the first gear 202 and the second gear 203 lose meshing, that is, the second gear 203 stops driving the ratchet 403 to rotate synchronously, and the ratchet 403 no longer squeezes the limit block 404. At this time, the limit block 404 is reset to the initial position under the action of the third elastic element 405, and the ratchet 403 is unidirectionally limited again to prevent the push block 7 from driving the second gear 203 to rotate in the opposite direction through the squeezing block 204 during the separation of the first gear 202 and the second gear 203, resulting in inaccurate vibration parameters of the bearing collected by the vibration detection module 4. When the first gear 202 is meshed with the second gear 203 again, the above steps are repeated.

[0075] When the third gear 206 drives the rotating shaft 201 to rotate through the fourth gear 207, since the third gear 206 is a missing gear, the third gear 206 intermittently drives the fourth gear 207 to rotate, so that the fourth gear 207 drives the rotating shaft 201 to rotate intermittently, that is, the rotating shaft 201 drives the outer ring of the bearing to rotate intermittently through the two second pulleys 401, the second transmission belt 402 and the fixed frame 302, so that the vibration detection module 4 alternately collects vibration parameters when the outer ring of the bearing is rotating and not rotating, thereby increasing the vibration parameters collected by the vibration detection module 4, thereby improving the detection accuracy of the bearing.

[0076] Thus far, this embodiment has been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the hydraulic support performance testing device of the present invention. The specific embodiments described above further illustrate the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above description is merely a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A hydraulic support performance testing device, characterized in that: Includes: Testing station (1); A servo motor (2) is fixedly connected to the test platform (1), the test platform (1) is provided with a pneumatic clamp (3), the servo motor (2) is used to drive the pneumatic clamp (3) to rotate, and the pneumatic clamp (3) is used to fix the inner ring of the bearing; A vibration detection module (4) fixedly connected to the detection platform (1); A pressure member (5) is slidably connected to the detection platform (1); A push block (7) slidably connected to the pressure member (5); A first elastic member (6) is disposed between the push block (7) and the pressure member (5); A driving assembly is provided on the detection platform (1) and is used to drive the pressure member (5) to move upward so that the bearing is subjected to a force that simulates an actual operating state; A fixing assembly is arranged on the detection platform (1) and is used to fix the outer ring of the bearing.

2. A hydraulic support performance testing device according to claim 1, characterized in that: The drive assembly includes: A rotating shaft (201) rotatably connected to the detection platform (1); A first gear (202) is fixedly connected to the rotating shaft (201); A second gear (203) is rotatably connected to the detection platform (1); the first gear (202) is transmission-connected to the second gear (203); the second gear (203) is fixedly connected to an extrusion block (204); the extrusion block (204) is used to drive the push block (7) to move along the pressure member (5); A transmission assembly is arranged in the detection platform (1) and is used to enable the output shaft of the servo motor (2) to drive the rotating shaft (201) to rotate.

3. A hydraulic support performance testing device according to claim 2, characterized in that: The transmission assembly includes: A reducer (205) is fixedly connected to the testing platform (1); A third gear (206) is fixedly connected to the output end of the reducer (205); A fourth gear (207) is fixedly connected to the rotating shaft (201), and the third gear (206) is transmission-connected to the fourth gear (207); A power transmission component is provided on the output shaft of the servo motor (2) and is used to drive the input end of the reducer (205) to rotate.

4. The hydraulic support performance testing device according to claim 1, characterized in that: The fixing assembly includes: An electric push rod (301) is fixedly connected to the testing platform (1); The fixing frame (302) is arranged at the telescopic end of the electric push rod (301).

5. A hydraulic support performance testing device according to claim 4, characterized in that: The detection platform (1) is provided with a support frame (303), and the support frame (303) cooperates with the fixing frame (302) to support the outer ring of the bearing.

6. The hydraulic support performance testing device according to claim 4, characterized in that: A second elastic element (304) is provided between the telescopic end of the electric push rod (301) and the fixing frame (302).

7. The hydraulic support performance testing device according to claim 4, characterized in that: Also included are: A rotating assembly is provided on the fixing frame (302) and is used to drive the outer ring of the bearing to rotate. The rotating assembly includes: The second pulley (401) has two parts, one of which is fixedly connected to the fixed frame (302) and the other is splined to the rotating shaft (201); the fixed frame (302) is rotatably and slidably connected to the telescopic end of the electric push rod (301); the support frame (303) is rotatably connected to the detection platform (1); the fixed frame (302) and the second pulley (401) on the rotating shaft (201) are jointly limitedly slidably connected to a connecting frame; The second transmission belt (402) is wound between the two second pulleys (401).

8. The hydraulic support performance testing device according to claim 2, characterized in that: The first gear (202) is a missing gear, and the central angle corresponding to the tooth portion of the first gear (202) is in the range of 10° to 30°, which is used to intermittently drive the first gear (202) to rotate.

9. The hydraulic support performance testing device according to claim 8, characterized in that: Also included are: A limit assembly is provided on the second gear (203) and is used to lock the second gear (203) in one direction so that the extrusion block (204) can only rotate in one direction. The limit assembly includes: a ratchet (403) fixedly connected to the second gear (203); A limit block (404) is slidably connected to the detection platform (1), and the limit block (404) is used to limit the ratchet (403) in one direction; The third elastic element (405) is arranged between the detection platform (1) and the limiting block (404).

10. The hydraulic support performance testing device according to claim 3, characterized in that: The third gear (206) is a missing gear, and the center angle corresponding to the tooth portion of the third gear (206) is 180°.

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