Motorcycle shock absorption performance test tool

Abstract

The present application relates to the technical field of vehicle shock absorption detection, and more particularly to a motorcycle shock absorption performance test tool, comprising: a reciprocating swing mechanism and a reciprocating lifting mechanism; the extending end surfaces of the reciprocating swing mechanism and the reciprocating lifting mechanism are respectively fixed with a rotating disc and a bearing seat, and the reciprocating lifting mechanism is internally provided with a rotating drive mechanism; a conical drive gear seat is driven by a screw rod lifting mechanism, and the conical drive gear seat is connected with one end of the rotating drive mechanism penetrating into the inside of an L-shaped frame body, one end of the reciprocating lifting mechanism and one end of the reciprocating swing mechanism; a shock absorber mounting bracket is fixed on the rotating disc, and a detection mechanism is arranged on the shock absorber mounting bracket. The present application is designed with high ingenuity, has the ability to automatically adjust the mounting direction of the shock absorber, can implement omnibearing and multi-angle performance detection, significantly improves the detection efficiency, greatly reduces the operation error, ensures the accuracy and reliability of the test results, and has good use effect.

Description

Technical Field

[0001] This invention relates to the technical field of vehicle shock absorption testing, and more particularly to a testing fixture for motorcycle shock absorption performance. Background Technology

[0002] In the motorcycle manufacturing industry, it is crucial to ensure that every motorcycle has excellent shock absorption performance before leaving the factory. As an important component of the motorcycle suspension system, the performance of the shock absorber directly determines the stability and comfort during riding, and plays a decisive role in the safety of the rider. The shock absorber needs to effectively absorb and disperse vibrations from the road surface, and maintain an efficient and stable working state, whether it is vertical bumps or oblique impacts.

[0003] With the continuous advancement of motorcycle design technology, the installation direction of shock absorbers has become increasingly diversified to adapt to the design requirements of different models and special road conditions. Traditional shock absorber performance testing fixtures mainly rely on manual operation. Testers need to manually change the installation direction of the shock absorbers, which not only consumes a lot of time and manpower, but also easily introduces human operation errors during the frequent changes of installation direction, thereby affecting the accuracy and reliability of the test results.

[0004] In addition, traditional shock absorber performance testing fixtures are inadequate when dealing with complex and varied shock absorber installation orientations, and cannot fully cover all possible test scenarios, which may lead to the omission of some potential performance problems. Summary of the Invention

[0005] The present invention aims to at least partially solve one of the technical problems in the related art.

[0006] Therefore, the purpose of this invention is to provide a motorcycle shock absorber performance testing fixture. This invention is ingeniously designed, has the ability to automatically adjust the installation direction of the shock absorber, and can perform all-round, multi-angle performance testing. It significantly improves testing efficiency while greatly reducing operational errors, ensuring the accuracy and reliability of test results, and has good performance.

[0007] To achieve the above objectives, this invention proposes a testing fixture for motorcycle shock absorber performance, comprising:

[0008] Reciprocating swing mechanism and reciprocating lifting mechanism: They are arranged vertically inside the L-shaped frame, with one end of each extending outside the L-shaped frame. The extended end surfaces of the reciprocating swing mechanism and the reciprocating lifting mechanism are respectively fixed with a rotating disk and a bearing seat. The reciprocating lifting mechanism has a built-in rotary drive mechanism. One end of the rotary drive mechanism penetrates into the L-shaped frame, and the other end of the rotary drive mechanism penetrates into the bearing seat and is connected to the shock absorption test component set on the top of the bearing seat.

[0009] Conical drive gear seat: driven by a screw lifting mechanism located inside the L-shaped frame body to achieve vertical reciprocating lifting inside the L-shaped frame body. The conical drive gear seat is connected to one end of the rotary drive mechanism that penetrates into the L-shaped frame body, one end of the reciprocating lifting mechanism, or one end of the reciprocating swing mechanism.

[0010] Shock absorber mounting bracket: fixed on the rotating disk, with its bottom in contact with the shock absorber testing component. The shock absorber mounting bracket is equipped with a detection mechanism for detecting the shock absorber performance of the shock absorber body installed on the shock absorber mounting bracket. The detection mechanism and the screw lifting mechanism are respectively connected to the controller set on the surface of the L-shaped frame through a bus system to realize data transmission and control command reception.

[0011] In addition, the motorcycle shock absorber performance testing fixture proposed in the above application may also have the following additional technical features:

[0012] Specifically, the reciprocating swing mechanism includes a first mounting base, a first reciprocating lead screw, a movable slide, a connecting rod, a first one-way transmission, a first drive gear, and a shaped disk. The first mounting base is fixedly connected to the inner wall of the L-shaped frame. The first reciprocating lead screw is rotatably connected to the inner wall of the first mounting base. The movable slide is threadedly connected to the outer surface of the first reciprocating lead screw and horizontally slidably connected to the inner wall of the first mounting base. One end of the connecting rod is hinged and fixed to the surface of the movable slide. One end of the first reciprocating lead screw extends out of the first mounting base and is connected to the first drive gear rotatably connected to the surface of the movable slide through the first one-way transmission. The first drive gear meshes with a conical drive gear seat. The shaped disk is rotatably connected to the inner wall of the L-shaped frame and is located on one side of the first mounting base. The other end of the connecting rod is hinged and fixed to the protruding surface of the shaped disk. One end of the drive shaft of the shaped disk extends out of the L-shaped frame and is fixedly connected to the rotating disk.

[0013] Specifically, the reciprocating lifting mechanism includes a second mounting base, a second reciprocating lead screw, a movable gear seat, a second one-way transmission, a second drive gear, a horizontal gear, a third reciprocating lead screw, and a vertical slide. The second mounting base is fixedly connected to the inner wall of the L-shaped frame. The second reciprocating lead screw is rotatably connected to the inner wall of the second mounting base. The movable gear seat is threadedly connected to the outer surface of the second reciprocating lead screw and horizontally slidably connected to the surface of the second mounting base. One end of the second reciprocating lead screw extends beyond the second mounting base and is connected to the second drive gear rotatably connected to the surface of the second mounting base via the second one-way transmission. The second one-way transmission has the opposite transmission direction to the first one-way transmission. The second drive gear meshes with the conical drive gear seat. A spur gear is rotatably connected to the inner wall of the L-shaped frame and located on one side of the movable gear seat. The horizontal gear meshes with the movable gear seat. The third reciprocating screw is rotatably connected to the inner wall of the L-shaped frame and fixedly connected to the surface of the horizontal gear. The vertical slide is threaded to the outer surface of the third reciprocating screw and vertically slidably connected to the inner wall of the L-shaped frame. One end of the vertical slide extends through the outside of the L-shaped frame and is vertically slidably connected to the outer surface of the L-shaped frame. The rotary drive mechanism is located inside the vertical slide. One end of the rotary drive mechanism extends into the inside of the L-shaped frame and is connected to the conical drive gear seat. The other end of the rotary drive mechanism extends into the inside of the bearing seat and is connected to the vibration damping test assembly located on the top of the bearing seat.

[0014] Specifically, the rotary drive mechanism includes a rotating shaft, a first bevel gear, a second bevel gear, a third one-way transmission, a rotating cylinder, a push rod, a cam shaft, a spiral guide groove, an outer cylinder, and a spring. The rotating shaft is rotatably connected to the extended end surface of the vertical slide. One end of the rotating shaft penetrates into the interior of the vertical slide and is fixedly connected to the first bevel gear. The other end of the rotating shaft penetrates into the interior of the bearing seat and is connected to the vibration damping test assembly located on the top of the bearing seat. The first bevel gear is rotatably connected to the second bevel gear on one side, and they mesh with each other. One end of the central shaft of the second bevel gear is fixedly connected to the third one-way transmission. The device includes a third one-way transmission device, with the other end of which is fixedly connected to the rotating drum. The push rod is horizontally slidably connected to the inner wall of the rotating drum. One end of the push rod penetrates into the interior of the rotating drum and is fixedly connected to the convex shaft. A spiral guide groove is provided on the surface of the rotating drum corresponding to the position of the convex shaft. One end of the convex shaft is located inside the spiral guide groove and is slidably connected to the inner wall of the spiral guide groove. The outer cylinder is threadedly connected to one side surface of the vertical slide block located inside the L-shaped frame. The other end of the push rod penetrates out of the outer cylinder and is fixedly connected to the surface of the outer cylinder with a spring. The end of the push rod that penetrates out of the outer cylinder is connected to the conical drive gear seat.

[0015] Specifically, the screw lifting mechanism includes a drive motor and a fourth reciprocating screw. The drive motor is fixedly connected to the inner wall of the L-shaped frame and connected to the controller through a bus system to realize data transmission and control command reception. The fourth reciprocating screw is rotatably connected to the inner wall of the L-shaped frame and fixedly connected to the output end of the drive motor.

[0016] The conical drive gear seat includes a cross frame, a conical seat, and a double-sided gear seat. The cross frame is threaded to the outer surface of the fourth reciprocating screw and vertically slidably connected to the inner wall of the L-shaped frame. The conical seat and the double-sided gear seat are integrally formed on the surface of the cross frame on the same side. The conical seat is slidably connected to one end of the push rod that extends out of the outer cylinder. The double-sided gear seat is located between the first drive gear and the second drive gear, and the double-sided gear seat is meshed with the first drive gear and the second drive gear respectively.

[0017] Specifically, the shock absorber mounting bracket includes a U-shaped bracket, an upper fixed shaft seat, a lower sliding shaft seat, and a wheel. The U-shaped bracket is fixedly connected to the outer surface of the rotating disk, the upper fixed shaft seat is fixedly connected to the inner top wall of the U-shaped bracket, and the lower sliding shaft seat is vertically slidably connected to the inner bottom wall of the U-shaped bracket. The two ends of the shock absorber body are respectively sleeved on the outside of the positioning columns in the upper fixed shaft seat and the lower sliding shaft seat, and are fixed by nuts. The end of the lower sliding shaft seat away from the positioning column extends through the bottom of the U-shaped bracket and is provided with the wheel. The bottom of the wheel is in contact with the shock absorber testing component.

[0018] Specifically, the vibration damping test assembly includes a horizontal slide, an L-shaped drive shaft, a synchronous slide, a rear arc-shaped boss, a front arc-shaped boss, a left adjusting seat, a right adjusting seat, a fifth reciprocating screw, a transmission rod, a synchronous gear, a worm gear, and a worm. The horizontal slide is horizontally slidably connected to the top of the bearing seat. The L-shaped drive shaft is horizontally slidably connected to the top of the horizontal slide. The synchronous slide is horizontally slidably connected to the top of the bearing seat and located inside the horizontal slide. One end of the L-shaped drive shaft extends through the outside of the horizontal slide and is fixedly connected to the surface of the synchronous slide. The rear arc-shaped boss is uniformly fixedly connected to the top of the synchronous slide, and the front arc-shaped boss is uniformly fixedly connected to the top of the synchronous slide and located outside the rear arc-shaped boss. The left adjusting seat and the right adjusting seat... The joint seats are fixedly connected to the top of the bearing seat and located outside the horizontal slide. The surfaces of the left and right adjustment seats are provided with conical extrusion grooves. The two sets of conical extrusion grooves are arranged in opposite directions. The L-shaped drive shaft is slidably connected to the inner walls of the two sets of conical extrusion grooves. The fifth reciprocating screw and the transmission rod are rotatably connected to the inner wall of the bearing seat. One end of the fifth reciprocating screw and the transmission rod are respectively provided with synchronous gears and mesh with each other. The bottom of the horizontal slide penetrates into the interior of the bearing seat and is threadedly connected to the outer surface of the fifth reciprocating screw. The other end of the transmission rod is fixedly connected to a worm gear, and a worm is rotatably connected to one side of the bottom of the worm gear and meshes with each other. One end of the worm is fixedly connected to the end of the rotating shaft that penetrates into the interior of the bearing seat.

[0019] The front arc-shaped protrusion initially corresponds to the position of the wheel;

[0020] The arc surface of the rear arc-shaped protrusion is set opposite to the arc surface of the front arc-shaped protrusion, and the volume of the multiple sets of rear arc-shaped protrusions and the multiple sets of front arc-shaped protrusions increases sequentially from front to back along the forward direction.

[0021] Specifically, the detection mechanism includes a housing, an accelerometer, and an infrared rangefinder. The housing is fixedly connected to a U-shaped bracket and located on one side of the lower sliding shaft. The accelerometer and the infrared rangefinder are respectively mounted on the surface of the housing. The sensing axis of the accelerometer is parallel to the lifting direction of the lower sliding shaft. A test groove with gradually increasing depth from top to bottom along the vertical direction is opened on the surface of the lower sliding shaft corresponding to the position of the infrared rangefinder. The accelerometer and the infrared rangefinder are respectively connected to the controller through a bus system to realize data transmission and control command reception.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. This invention is ingeniously designed and has the ability to automatically adjust the installation direction of the shock absorber. It can also perform all-round and multi-angle performance testing, which significantly improves the testing efficiency while greatly reducing operational errors, ensuring the accuracy and reliability of the test results, and has good performance.

[0025] 2. The present invention cleverly configures a reciprocating swing mechanism, a rotating disk and a shock absorber mounting bracket. The core design of the reciprocating swing mechanism is to realize flexible and precise adjustment of the rotating disk, the shock absorber mounting bracket and the shock absorber in the installation direction. This innovation not only successfully replaces cumbersome manual operation and greatly improves the efficiency of testing work, but also shows significant advantages in ensuring the accuracy of testing, thereby ensuring excellent performance.

[0026] 3. The present invention is ingeniously equipped with a reciprocating lifting mechanism. After the shock absorber mounting bracket and the shock absorber body have completed the directional adjustment, the mechanism can accurately adjust the height of the bearing seat and the shock absorber test component. This design ensures that the shock absorber test component is always in close contact with the bottom of the shock absorber mounting bracket, maintaining a stable contact state, laying a solid foundation for the subsequent shock absorber performance test, thereby greatly improving the effect and accuracy of use.

[0027] 4. This invention innovatively adds a rotary drive mechanism to the reciprocating lifting mechanism. This mechanism is ingeniously designed and highly efficient. The precise connection and coordinated operation between its components ensure the accuracy and stability of the rotational motion. Driven by the rotary drive mechanism, the shock absorber test assembly can operate smoothly, effectively simulating the impact effects on the wheels and shock absorber body under different road conditions. Testers can easily simulate the wheel's driving state at different speeds by adjusting the rotation speed of the rotary drive mechanism. The synchronous slide in the shock absorber test assembly can achieve horizontal movement. This design realistically reproduces the state of the wheel driving on the road surface. Compared with the traditional unidirectional rotating test disc with a convex seat, the contact area of ​​the wheel bottom in this invention is larger and the force-bearing area is more stable, thus more closely resembling the actual driving state and better simulating the shock absorption scenario when the wheel contacts an object. This ensures the accuracy of the test data. In addition, the shock absorber test assembly is equipped with a rear arc-shaped boss and a front arc-shaped boss. These two designs can effectively simulate the shock absorber state when the wheel is moving forward and backward, respectively. This is a function that existing unidirectional rotating test discs with bosses do not have. It is worth mentioning that the volume of the rear arc-shaped boss and the front arc-shaped boss gradually increases in the forward direction. This design allows the rear arc-shaped boss and the front arc-shaped boss to gradually increase the impact intensity and frequency on the wheel, thereby more comprehensively evaluating the response speed, stability and durability of the shock absorber system. With its unique design and clear function, the shock absorber test assembly plays a crucial role in motorcycle shock absorber performance testing fixtures. It can not only accurately simulate the uneven parts of the actual road, but also comprehensively evaluate the performance of the shock absorber system by gradually increasing the impact intensity and frequency, so its use effect is significant.

[0028] 5. The present invention also includes a testing mechanism, which adopts a dual testing mode to ensure testing accuracy. First, the acceleration of the sliding bearing is accurately captured by an accelerometer to evaluate the shock absorption performance. Second, the depth difference of the test groove is measured by an infrared rangefinder to assist in evaluating the shock absorption performance. The overall performance is excellent.

[0029] 6. This invention also includes a conical drive gear seat and a screw lifting mechanism. These two components are essential parts of the motorcycle shock absorber performance testing fixture. They work together to achieve precise control and drive during the testing process. In the workflow, the screw lifting mechanism drives the conical drive gear seat to rise and fall. During the rising phase, the conical drive gear seat first activates the rotary drive mechanism, which simultaneously drives the shock absorber testing component to perform shock absorber performance testing on the vertically positioned shock absorber body. The continued rise of the conical drive gear seat then triggers the reciprocating swing mechanism to operate. This mechanism adjusts the installation direction of the rotating disc, shock absorber mounting bracket, and shock absorber body. Finally, during the retraction and reset of the conical drive gear seat, the reciprocating lifting mechanism is activated, driving the support seat and shock absorber testing component to rise, ensuring they are tightly fitted to the bottom of the shock absorber mounting bracket and maintaining a stable contact state. This lays a solid foundation for subsequent shock absorber performance testing, greatly improving the effectiveness and accuracy of the test. The entire testing process proceeds in an orderly manner according to the preset procedures, achieving efficient and precise testing operations with excellent results. Attached Figure Description

[0030] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0031] Figure 1 This is a schematic diagram of a motorcycle shock absorber performance testing fixture according to an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the reciprocating swing mechanism in a motorcycle shock absorber performance testing fixture according to an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the linkage structure in a motorcycle shock absorber performance testing fixture according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the reciprocating lifting mechanism in a motorcycle shock absorber performance testing fixture according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the rotary drive mechanism in a motorcycle shock absorber performance testing fixture according to an embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of the conical drive gear seat structure in a motorcycle shock absorber performance testing fixture according to an embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the shock absorber mounting bracket structure in a motorcycle shock absorber performance testing fixture according to an embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram of the shock absorption test component structure in a motorcycle shock absorption performance testing fixture according to an embodiment of the present invention;

[0039] Figure 9 This is a schematic diagram of the testing mechanism in a motorcycle shock absorber performance testing fixture according to an embodiment of the present invention.

[0040] As shown in the figure:

[0041] 1. L-shaped frame; 2. Controller; 3. Reciprocating swing mechanism; 4. Reciprocating lifting mechanism; 5. Rotary drive mechanism; 6. Rotary disk; 7. Bearing seat; 70. Vibration damping test assembly; 8. Conical drive gear seat; 80. Screw lifting mechanism; 9. Vibration damper mounting bracket; 10. Testing mechanism; 11. Vibration damper body; 12. Placement slot;

[0042] 31. First mounting base; 32. First reciprocating lead screw; 33. Moving slide; 34. Connecting rod; 35. First one-way transmission device; 36. First drive gear; 37. Irregularly shaped disc; 371. Protrusion; 38. Drive shaft;

[0043] 41. Second mounting base; 42. Second reciprocating lead screw; 43. Moving gear seat; 44. Second one-way transmission; 45. Second drive gear; 46. Horizontal gear; 47. Third reciprocating lead screw; 48. Vertical slide;

[0044] 51. Rotating shaft; 52. First bevel gear; 53. Second bevel gear; 54. Third one-way transmission; 55. Rotary drum; 56. Push rod; 57. Cam shaft; 58. Spiral guide groove; 59. Outer cylinder; 510. Spring;

[0045] 701. Horizontal slide; 702. L-shaped drive shaft; 703. Synchronous slide; 704. Rear arc-shaped boss; 705. Front arc-shaped boss; 706. Left adjusting seat; 707. Right adjusting seat; 708. Fifth reciprocating lead screw; 709. Transmission rod; 7010. Synchronous gear; 7011. Worm gear; 7012. Worm; 700. Conical extrusion groove;

[0046] 81. Crossbar; 82. Conical seat; 83. Double-sided gear seat; 801. Drive motor; 802. Fourth reciprocating lead screw;

[0047] 91. U-shaped bracket; 92. Upper fixed axle seat; 93. Lower sliding axle seat; 931. Test groove; 94. Wheel;

[0048] 101. Box body; 102. Accelerometer; 103. Infrared rangefinder. Detailed Implementation

[0049] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention. Rather, embodiments of the invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0050] The following description, in conjunction with the accompanying drawings, describes a motorcycle shock absorber performance testing fixture according to an embodiment of the present invention.

[0051] like Figures 1-9 As shown, an embodiment of the present invention provides a motorcycle shock absorber performance testing fixture, comprising:

[0052] Reciprocating swing mechanism 3 and reciprocating lifting mechanism 4 are arranged inside the L-shaped frame 1, with one end of each extending out of the L-shaped frame 1. The extended end surfaces of the reciprocating swing mechanism 3 and the reciprocating lifting mechanism 4 are respectively fixed with a rotating disk 6 and a bearing seat 7. The reciprocating lifting mechanism 4 has a built-in rotary drive mechanism 5. One end of the rotary drive mechanism 5 penetrates into the L-shaped frame 1, and the other end of the rotary drive mechanism 5 penetrates into the bearing seat 7 and is connected to the shock absorption test component 70 set on the top of the bearing seat 7.

[0053] Conical drive gear seat 8: Driven by a screw lifting mechanism 80 located inside the L-shaped frame 1, so as to realize vertical reciprocating lifting inside the L-shaped frame 1. The conical drive gear seat 8 is connected to one end of the rotary drive mechanism 5 that penetrates into the L-shaped frame 1, one end of the reciprocating lifting mechanism 4, or one end of the reciprocating swing mechanism 3.

[0054] Shock absorber mounting bracket 9: fixed on the rotating disk 6, with its bottom in contact with the shock absorber test component 70. The shock absorber mounting bracket 9 is equipped with a detection mechanism 10, which is used to test the shock absorber body 11 installed on the shock absorber mounting bracket 9. The detection mechanism 10 and the screw lifting mechanism 80 are respectively connected to the controller 2 set on the surface of the L-shaped frame 1 through the bus system to realize data transmission and control command reception.

[0055] It should be noted that the L-shaped frame 1 in this embodiment has a placement groove 12 on its surface for temporarily placing the shock absorber body 11.

[0056] Specifically, this invention features an ingenious design, possessing the ability to automatically adjust the installation direction of the shock absorber and perform comprehensive, multi-angle performance testing. This significantly improves testing efficiency while greatly reducing operational errors, ensuring the accuracy and reliability of test results and demonstrating excellent performance. The invention cleverly incorporates a reciprocating swing mechanism 3, a rotating disk 6, and a shock absorber mounting bracket 9. The core design of the reciprocating swing mechanism 3 lies in enabling flexible and precise adjustment of the rotating disk 6, the shock absorber mounting bracket 9, and the shock absorber body 11 in the installation direction. This innovation not only successfully replaces cumbersome manual operations, significantly improving testing efficiency, but also demonstrates a significant advantage in ensuring testing accuracy, thereby guaranteeing excellent performance. The invention cleverly incorporates a reciprocating lifting mechanism 4. After the shock absorber mounting bracket 9 and the shock absorber body 11 have completed directional adjustment, this mechanism can precisely adjust the height of the bearing seat 7 and the shock absorber test component 70. This design ensures that the shock absorber test component 70 is always tightly fitted to the bottom of the shock absorber mounting bracket 9, maintaining a stable contact state. This lays a solid foundation for subsequent shock absorber performance testing, thereby greatly improving the effectiveness and accuracy of use. Based on the reciprocating lifting mechanism 4, the invention innovatively adds a rotary drive mechanism 5. This mechanism is ingeniously designed and highly efficient. The precise connection and coordinated work between its components ensure the accuracy and stability of the rotational motion. Driven by the rotary drive mechanism 5, the shock absorber test component... The shock absorber test assembly 70 can operate smoothly, effectively simulating the impact effects on the wheel 94 and the shock absorber body 11 under different road conditions. Testers can easily simulate the driving state of the wheel 94 at different speeds by adjusting the rotation speed of the rotary drive mechanism 5. The synchronous slide 703 in the shock absorber test assembly 70 can move horizontally. This design realistically reproduces the driving state of the wheel 94 on the road. Compared with the traditional unidirectional rotating test disc with a convex seat, the bottom contact area of ​​the wheel 94 in this invention is larger and the force-bearing area is more stable. Therefore, it can more closely resemble the actual driving state and better simulate the shock absorption scenario when the wheel 94 contacts an object, thereby ensuring the accuracy of the test data. In addition, the shock absorber test assembly 70 is also equipped with a rear arc. The rear-mounted convex bracket 704 and the front arc-shaped convex bracket 705 effectively simulate the shock absorption state of the wheel 94 in forward and reverse directions, respectively. This is a function not found in existing unidirectional rotating test discs with convex brackets. It is worth mentioning that the volume of the rear arc-shaped convex bracket 704 and the front arc-shaped convex bracket 705 gradually increases in the forward direction. This design allows the rear arc-shaped convex bracket 704 and the front arc-shaped convex bracket 705 to gradually increase the impact intensity and frequency on the wheel 94, thereby more comprehensively evaluating the response speed, stability, and durability of the shock absorption system. With its unique design and clear function, the shock absorption test assembly 70 plays a crucial role in motorcycle shock absorption performance testing fixtures. It can accurately simulate uneven parts of actual roads.Furthermore, the performance of the shock absorption system can be comprehensively evaluated by gradually increasing the impact intensity and frequency, resulting in significant effectiveness. This invention also includes a detection mechanism 10, which employs a dual detection mode to ensure testing accuracy. First, an accelerometer 102 accurately captures the acceleration of the sliding bearing 93 as it rises, thereby evaluating the shock absorption performance. Second, an infrared rangefinder 103 measures the depth difference of the test groove 931 to assist in evaluating the shock absorption performance. Overall, the invention demonstrates excellent performance. The invention also includes a conical drive gear seat 8 and a screw lifting mechanism 80. The screw lifting mechanism 80 and the conical drive gear seat 8 are important components of the motorcycle shock absorption performance testing fixture. They work together to achieve precise control and drive during the testing process. In the workflow, the screw lifting mechanism 80 drives the conical drive gear seat 8 to rise and fall. During the rising phase, the conical drive gear seat 8 is first excited... The rotating drive mechanism 5 synchronously drives the vibration damping test component 70 to perform vibration damping performance testing on the vertically positioned shock absorber body 11. Subsequently, the continued rise of the conical drive gear seat 8 triggers the reciprocating swing mechanism 3 to operate. The reciprocating swing mechanism 3 adjusts the installation direction of the rotating disk 6, the shock absorber mounting bracket 9, and the shock absorber body 11. Finally, during the descent and reset of the conical drive gear seat 8, the reciprocating lifting mechanism 4 is activated. The reciprocating lifting mechanism 4 drives the bearing seat 7 and the vibration damping test component 70 to rise, ensuring they are tightly fitted against the bottom of the shock absorber mounting bracket 9, maintaining a stable contact state. This lays a solid foundation for subsequent vibration damping performance testing, greatly improving the effectiveness and accuracy of the test. The entire testing process is carried out in an orderly manner according to the preset procedures, achieving efficient and precise testing operations with good results.

[0057] It should be noted that since the reciprocating swing mechanism 3, the reciprocating lifting mechanism 4 and the rotary drive mechanism 5 operate in a reciprocating manner, they can also synchronously drive the shock absorber mounting bracket 9, the shock absorber body 11, the bearing seat 7 and the shock absorber test component 70 to return to their initial positions after the test is completed, resulting in good performance.

[0058] In one embodiment of the present invention, such as Figure 3As shown, the reciprocating oscillating mechanism 3 includes a first mounting base 31, a first reciprocating lead screw 32, a movable slide 33, a connecting rod 34, a first one-way transmission 35, a first drive gear 36, and a shaped disk 37. The first mounting base 31 is fixedly connected to the inner wall of the L-shaped frame 1. The first reciprocating lead screw 32 is rotatably connected to the inner wall of the first mounting base 31. The movable slide 33 is threaded to the outer surface of the first reciprocating lead screw 32 and horizontally slidably connected to the inner wall of the first mounting base 31. One end of the connecting rod 34 is hinged and fixed to the surface of the movable slide 33. One end of the multi-lead screw 32 extends through the outside of the first mounting base 31 and is connected to the first drive gear 36, which is rotatably connected to the surface of the movable slide 33, through the first one-way transmission 35. The first drive gear 36 meshes with the conical drive gear seat 8. The irregularly shaped disk 37 is rotatably connected to the inner wall of the L-shaped frame 1 and is located on one side of the first mounting base 31. The other end of the connecting rod 34 is hinged and fixed to the surface of the protrusion 371 of the irregularly shaped disk 37. One end of the drive shaft 38 of the irregularly shaped disk 37 extends through the outside of the L-shaped frame 1 and is fixedly connected to the rotating disk 6.

[0059] It should be noted that the rotation angle range of the shock absorber mounting bracket 9 described in this embodiment is between 0° and -300°.

[0060] It should be noted that the shock absorber mounting bracket 9 described in this embodiment has a fixed rotation angle in a single rotation.

[0061] Specifically, the structure and connection relationship of the reciprocating swing mechanism 3 will be further explained. The reciprocating swing mechanism 3 is a key component in the motorcycle shock absorber performance testing fixture. Its design aims to achieve flexible adjustment of the rotating disk 6, the shock absorber mounting bracket 9 and the shock absorber body 11 in the installation direction, thereby effectively replacing manual operation and improving testing efficiency.

[0062] In use, when the double-sided gear seat 83 in the conical drive gear seat 8 contacts and meshes with the first drive gear 36 during its upward movement, this action triggers the operation of the reciprocating swing mechanism 3. The rotation of the double-sided gear seat 83, through the intervention of the first one-way transmission 35, synchronously drives the rotation of the first reciprocating lead screw 32. The rotation of the first reciprocating lead screw 32 is converted into the horizontal reciprocating motion of the moving slide 33. This motion is achieved through the threaded connection and the guide structure of the slide. During the movement of the moving slide 33, the connecting rod 34 is moved synchronously. The design of the connecting rod 34 ensures the stable transmission and conversion of power. The other end of the connecting rod 34 is connected through a special... The fixed structure is connected to the protrusion 371 of the irregular disk 37. When the connecting rod 34 moves, it can drive the irregular disk 37 to rotate. The rotation of the irregular disk 37 is further driven by the intervention of the transmission shaft 38, which synchronously drives the adjustment of the rotating disk 6, the shock absorber mounting bracket 9 and the shock absorber body 11 in the installation direction. The reciprocating swing mechanism 3, through its precise design and connection relationship, realizes the flexible adjustment of the rotating disk 6, the shock absorber mounting bracket 9 and the shock absorber body 11 in the installation direction. The design of this mechanism not only improves the testing efficiency, but also effectively replaces manual operation, bringing great convenience to the use of motorcycle shock absorber performance testing fixtures.

[0063] In one embodiment of the present invention, such as Figure 4As shown, the reciprocating lifting mechanism 4 includes a second mounting base 41, a second reciprocating lead screw 42, a movable gear seat 43, a second one-way transmission 44, a second drive gear 45, a horizontal gear 46, a third reciprocating lead screw 47, and a vertical slide 48. The second mounting base 41 is fixedly connected to the inner wall of the L-shaped frame 1. The second reciprocating lead screw 42 is rotatably connected to the inner wall of the second mounting base 41. The movable gear seat 43 is threaded to the outer surface of the second reciprocating lead screw 42 and horizontally slidably connected to the surface of the second mounting base 41. One end of the second reciprocating lead screw 42 extends out of the second mounting base 41 and is connected to the second drive gear 45 rotatably connected to the surface of the second mounting base 41 through the second one-way transmission 44. The second one-way transmission 44 has the opposite transmission direction to the first one-way transmission 35. The second drive gear 45 is connected to the conical drive... The gear seat 8 is meshed with the horizontal gear 46, which is rotatably connected to the inner wall of the L-shaped frame 1 and located on one side of the movable gear seat 43. The horizontal gear 46 is meshed with the movable gear seat 43. The third reciprocating screw 47 is rotatably connected to the inner wall of the L-shaped frame 1 and is fixedly connected to the surface of the horizontal gear 46. The vertical slide 48 is threaded to the outer surface of the third reciprocating screw 47 and is vertically slidably connected to the inner wall of the L-shaped frame 1. One end of the vertical slide 48 extends through the outside of the L-shaped frame 1 and is vertically slidably connected to the outer surface of the L-shaped frame 1. The rotary drive mechanism 5 is located inside the vertical slide 48. One end of the rotary drive mechanism 5 extends into the inside of the L-shaped frame 1 and is connected to the conical drive gear seat 8. The other end of the rotary drive mechanism 5 extends into the inside of the bearing seat 7 and is connected to the shock absorption test assembly 70 located on the top of the bearing seat 7.

[0064] Specifically, the structure and connection relationship of the reciprocating lifting mechanism 4 will be further explained. The reciprocating lifting mechanism 4 plays a crucial role in the motorcycle shock absorber performance testing fixture. In particular, after the shock absorber mounting bracket 9 and the shock absorber body 11 change direction, it can accurately adjust the height of the shock absorber test component 70, ensuring that the shock absorber test component 70 is always in close contact with the bottom of the shock absorber mounting bracket 9, thereby maintaining a stable contact state and providing an accurate basis for subsequent shock absorber performance testing.

[0065] During operation, when the double-sided gear seat 83 in the conical drive gear seat 8 contacts and meshes with the second drive gear 45 during descent, this action becomes the key to triggering the operation of the reciprocating lifting mechanism 4. As the double-sided gear seat 83 continues to descend, it synchronously drives the rotation of the second reciprocating screw 42 through the intervention of the second one-way transmission 44. This rotational action is then converted into the horizontal reciprocating motion of the moving gear seat 43 along the outer surface of the second reciprocating screw 42 and the surface of the second mounting base 41. During the movement, the moving gear seat 43 not only moves horizontally along the second reciprocating screw 42, but also synchronously drives the rotation of the horizontal gear 46 through the meshing connection of its teeth with the horizontal gear 46. The rotation of the horizontal gear 46 is further transmitted to the third reciprocating screw 47 through its fixed connection with its shaft, causing it to also begin to rotate. The rotation of the third reciprocating screw 47 is finally converted into vertical... The vertical slide 48, through its internal threaded structure, tightly engages with the outer surface of the third reciprocating screw 47. When the third reciprocating screw 47 rotates, the vertical slide 48 can precisely move up and down along its axis. This movement not only changes its own position but also simultaneously drives the lifting of the support seat 7 and the shock absorber test assembly 70 mounted on it. This series of lifting actions ensures that the shock absorber test assembly 70 remains firmly attached to the bottom of the shock absorber mounting bracket 9. Regardless of how the shock absorber mounting bracket 9 and the shock absorber body 11 change direction, the shock absorber test assembly 70 maintains a stable contact state, providing a reliable foundation for subsequent shock absorber performance testing. The reciprocating lifting mechanism 4, through its precise design and connection, achieves precise adjustment of the height of the shock absorber test assembly 70, ensuring stability and accuracy during the testing process and providing excellent performance.

[0066] In one embodiment of the present invention, such as Figure 5As shown, the rotary drive mechanism 5 includes a rotating shaft 51, a first bevel gear 52, a second bevel gear 53, a third one-way transmission 54, a rotating drum 55, a push rod 56, a convex shaft 57, a spiral guide groove 58, an outer cylinder 59, and a spring 510. The rotating shaft 51 is rotatably connected to the extended end surface of the vertical slide 48. One end of the rotating shaft 51 penetrates into the interior of the vertical slide 48 and is fixedly connected to the first bevel gear 52. The other end of the rotating shaft 51 penetrates into the interior of the bearing seat 7 and is connected to the shock absorption test assembly 70 located on the top of the bearing seat 7. The first bevel gear 52 is rotatably connected to the second bevel gear 53 on one side, and they mesh with each other. One end of the central shaft of the second bevel gear 53 is fixedly connected to the third one-way transmission. The transmission device 54, and the other end of the third one-way transmission device 54 is fixedly connected to the rotating drum 55. The push rod 56 is horizontally slidably connected to the inner wall of the rotating drum 55. One end of the push rod 56 penetrates into the interior of the rotating drum 55 and is fixedly connected to the convex shaft 57. A spiral guide groove 58 is opened on the surface of the rotating drum 55 corresponding to the position of the convex shaft 57. One end of the convex shaft 57 is located inside the spiral guide groove 58 and is slidably connected to the inner wall of the spiral guide groove 58. The outer cylinder 59 is threadedly connected to one side surface of the vertical slide block 48 located inside the L-shaped frame 1. The other end of the push rod 56 penetrates out of the outer cylinder 59 and is fixedly connected to the surface of the outer cylinder 59 with a spring 510. One end of the push rod 56 that penetrates out of the outer cylinder 59 is connected to the conical drive gear seat 8.

[0067] It should be noted that the third one-way drive 54, the first one-way drive 35 and the second one-way drive 44 described in this embodiment are all ratchet-type one-way drives.

[0068] It should also be noted that an electronically controlled gear transmission (not shown in the figure) is also provided between the rotating shaft 51 and the first bevel gear 52 described in this embodiment. The electronically controlled gear transmission is connected to the controller 2 through a bus system to realize data transmission and control command reception. The electronically controlled gear transmission is mainly used to adjust the operating speed of the shock absorber test component 70.

[0069] Specifically, the structure and connection relationship of the rotary drive mechanism 5 will be further explained. The rotary drive mechanism 5 plays a key role in driving the operation of the shock absorber test component 70 in the motorcycle shock absorber performance testing fixture. Its structure is ingenious and efficient. The mechanism is mainly composed of a rotating shaft 51, a first bevel gear 52, a second bevel gear 53, a third one-way transmission 54, a rotating cylinder 55, a cam shaft 57, a push rod 56, a spiral guide groove 58, an outer cylinder 59, and a spring 510. The connection and cooperation between the components ensure the accuracy and stability of the rotation. When the conical seat 82 rises under the drive of the screw lifting mechanism 80, it will contact the push rod 56 and apply pressure, forcing the push rod 56 to move along the inner direction of the outer cylinder 59. This movement not only directly acts on the cam shaft 57, causing it to slide along the inner wall of the spiral guide groove 58, but also indirectly compresses the spring 510, providing the necessary restoring force and buffering effect for the entire mechanism. The movement of the cam shaft 57 in the spiral guide groove 58 is not a simple linear motion, but is accompanied by With the rotational component, this rotational component is effectively transmitted to the connected rotating drum 55 through the interaction of the cam shaft 57 and the spiral guide groove 58, causing the rotating drum 55 to start rotating. The rotation of the rotating drum 55 is further ensured by the intervention of the third one-way transmission 54, which ensures the one-way and efficient transmission of power to the second bevel gear 53. The second bevel gear 53 and the first bevel gear 52 form a bevel gear pair. Their meshing allows the rotation of the second bevel gear 53 to synchronously drive the rotation of the first bevel gear 52. The first bevel gear 52 is connected to the rotating shaft 51, and its rotation directly drives the rotating shaft 51 and the worm gear 7012 fixed thereto to rotate, realizing the precise rotation control of the shock absorber test assembly 70. The design of the entire rotation drive mechanism 5 not only realizes the efficient transmission and conversion of power, but also ensures the smoothness and accuracy of the rotation action through the ingenious combination of the spiral guide groove 58 and the cam shaft 57, as well as the precise meshing of the bevel gear pair. The use of this mechanism greatly improves the accuracy and reliability of motorcycle shock absorber performance testing.

[0070] In one embodiment of the present invention, such as Figure 6 As shown, the screw lifting mechanism 80 includes a drive motor 801 and a fourth reciprocating screw 802. The drive motor 801 is fixedly connected to the inner wall of the L-shaped frame 1 and is connected to the controller 2 through a bus system to realize data transmission and control command reception. The fourth reciprocating screw 802 is rotatably connected to the inner wall of the L-shaped frame 1 and is fixedly connected to the output end of the drive motor 801.

[0071] The conical drive gear seat 8 includes a cross frame 81, a conical seat 82, and a double-sided gear seat 83. The cross frame 81 is threaded to the outer surface of the fourth reciprocating screw 802 and vertically slidably connected to the inner wall of the L-shaped frame 1. The conical seat 82 and the double-sided gear seat 83 are integrally formed on the surface of the cross frame 81 on the same side. The conical seat 82 is slidably connected to one end of the push rod 56 that extends out of the outer cylinder 59. The double-sided gear seat 83 is located between the first drive gear 36 and the second drive gear 45, and the double-sided gear seat 83 is meshed with the first drive gear 36 and the second drive gear 45 respectively.

[0072] Specifically, the structure and connection relationship of the screw lifting mechanism 80 and the conical drive gear seat 8 are further explained. The screw lifting mechanism 80 and the conical drive gear seat 8 are important components of the motorcycle shock absorber performance testing fixture. They work together to achieve precise control and drive during the testing process. The screw lifting mechanism 80 mainly consists of a drive motor 801 and a fourth reciprocating screw 802. The conical drive gear seat 8 consists of a cross frame 81, a conical seat 82, and a double-sided gear seat 83. They are tightly connected by an integral molding process. In the working process, the drive motor 801 starts in response to the command and then drives the fourth reciprocating screw 802 to rotate. The rotational motion directly causes the crossbeam 81 to reciprocate vertically along the outer surface of the fourth reciprocating screw 802 and the inner wall of the L-shaped frame 1. The lifting motion of the crossbeam 81 further drives the conical seat 82 and the double-sided gear seat 83, which are fixedly connected to it, to lift synchronously. This series of actions is ingeniously designed: the conical seat 82 activates the rotation drive mechanism 5 during the rising phase, and then the rising of the double-sided gear seat 83 triggers the reciprocating swing mechanism 3 to start operating. Finally, during the process of the double-sided gear seat 83 descending and resetting, the reciprocating lifting mechanism 4 is activated, ensuring that the entire test process is carried out in an orderly manner according to the preset procedures, achieving efficient and accurate test operation, and having good performance.

[0073] In one embodiment of the present invention, such as Figure 7 As shown, the shock absorber mounting bracket 9 includes a U-shaped bracket 91, an upper fixed axle seat 92, a lower sliding axle seat 93, and a wheel 94. The U-shaped bracket 91 is fixedly connected to the outer surface of the rotating disk 6. The upper fixed axle seat 92 is fixedly connected to the inner top wall of the U-shaped bracket 91. The lower sliding axle seat 93 is vertically slidably connected to the inner bottom wall of the U-shaped bracket 91. The two ends of the shock absorber body 11 are respectively sleeved on the outside of the positioning posts in the upper fixed axle seat 92 and the lower sliding axle seat 93, and are fixed by nuts. The end of the lower sliding axle seat 93 away from the positioning post passes through the bottom of the U-shaped bracket 91 and is provided with a wheel 94. The bottom of the wheel 94 is in contact with the shock absorber test assembly 70.

[0074] Specifically, the structure and connection relationship of the shock absorber mounting bracket 9 will be further explained. The shock absorber mounting bracket 9 is a core component of the motorcycle shock absorber performance testing fixture, used to install and fix the shock absorber body 11. The shock absorber mounting bracket 9 mainly consists of a U-shaped bracket 91, an upper fixed axle seat 92, a lower sliding axle seat 93, and a wheel 94. The two ends of the shock absorber body 11 are respectively fitted onto the outside of the positioning pins in the upper fixed axle seat 92 and the lower sliding axle seat 93, and fixed with nuts. This design ensures the stability of the shock absorber body 11 during the testing process. With high accuracy, when the L-shaped drive shaft 702 drives the synchronous slide 703, the rear arc-shaped cam 704 and the front arc-shaped cam 705 to move, the wheel 94 first moves on top of the synchronous slide 703 to simulate driving on the road. When the wheel 94 travels onto the rear arc-shaped cam 704 and the front arc-shaped cam 705, the wheel 94 is impacted. These impacts will be transmitted through the wheel 94 to the lower sliding shaft 93 and the shock absorber body 11. The shock absorber body 11 will perform corresponding compression and rebound actions according to these impacts, thereby simulating the shock absorption effect in actual driving, and the effect is good.

[0075] In one embodiment of the present invention, such as Figure 8As shown, the vibration damping test assembly 70 includes a horizontal slide 701, an L-shaped drive shaft 702, a synchronous slide 703, a rear arc-shaped boss 704, a front arc-shaped boss 705, a left adjusting seat 706, a right adjusting seat 707, a fifth reciprocating lead screw 708, a transmission rod 709, a synchronous gear 7010, a worm gear 7011, and a worm 7012. The horizontal slide 701 is horizontally slidably connected to the top of the bearing seat 7, and the L-shaped drive shaft 702 is horizontally slidably connected to... The top of the horizontal slide 701 and the synchronous slide 703 are horizontally slidably connected to the top of the bearing seat 7 and located inside the horizontal slide 701. One end of the L-shaped drive shaft 702 extends through the outside of the horizontal slide 701 and is fixedly connected to the surface of the synchronous slide 703. The rear arc-shaped protrusion 704 is evenly fixedly connected to the top of the synchronous slide 703, and the front arc-shaped protrusion 705 is evenly fixedly connected to the top of the synchronous slide 703 and located outside the rear arc-shaped protrusion 704. Left adjustment The left and right adjustment seats 706 and 707 are fixedly connected to the top of the bearing seat 7 and located outside the horizontal slide 701. The surfaces of the left and right adjustment seats 706 and 707 are provided with conical extrusion grooves 700. The two sets of conical extrusion grooves 700 are arranged in opposite directions. The L-shaped drive shaft 702 is slidably connected to the inner walls of the two sets of conical extrusion grooves 700. The fifth reciprocating screw 708 and the transmission rod 709 are rotatably connected to the inner wall of the bearing seat 7. One end of the fifth reciprocating screw 708 and the transmission rod 709 is provided with a synchronous gear 7010 and they mesh with each other. The bottom of the horizontal slide 701 penetrates into the interior of the bearing seat 7 and is threaded to the outer surface of the fifth reciprocating screw 708. The other end of the transmission rod 709 is fixedly connected to a worm gear 7011, and a worm 7012 is rotatably connected to one side of the bottom of the worm gear 7011 and they mesh with each other. One end of the worm 7012 is fixedly connected to the end of the rotating shaft 51 that penetrates into the interior of the bearing seat 7.

[0076] In its initial state, the front arc-shaped protrusion 705 corresponds to the position of the wheel 94.

[0077] The arc-shaped surface of the rear arc-shaped boss 704 is set opposite to the arc-shaped surface of the front arc-shaped boss 705, and the volume of the multiple sets of rear arc-shaped bosses 704 and the multiple sets of front arc-shaped bosses 705 increases sequentially from front to back along the forward direction.

[0078] Specifically, the structure and connection relationship of the shock absorber test assembly 70 will be further explained. The main function of the shock absorber test assembly 70 is to simulate the impact on the wheel 94 and the shock absorber body 11 under different road conditions, so as to facilitate the evaluation of its performance. By adjusting the rotation speed of the rotary drive mechanism 5, the tester can simulate the driving state of the wheel 94 at different speeds, and the effect is good.

[0079] In use, the rotation of the rotating shaft 51 synchronously drives the worm gear 7012 to rotate. The rotation of the worm gear 7012 synchronously drives the worm wheel 7011 and the transmission rod 709 to rotate. The rotation of the transmission rod 709 synchronously drives the fifth reciprocating screw 708 to rotate via the synchronous gear 7010. The rotation of the fifth reciprocating screw 708 synchronously drives the horizontal slide 701 to move horizontally. The movement of the horizontal slide 701 synchronously drives the synchronous slide 703, the rear arc-shaped boss 704, and the front arc-shaped boss 705 to move via the L-shaped drive shaft 702. In the initial state, the wheel 94 is positioned corresponding to the front arc-shaped boss 705. When the synchronous slide 703 moves, the wheel 94 first moves on the top of the synchronous slide 703, simulating driving on the road, and then moves to the front arc-shaped boss 705. 5. Upon impact, the wheel 94 transmits the impact to the lower sliding axle seat 93 and the shock absorber body 11. The shock absorber body 11 will then perform corresponding compression and rebound actions based on these impacts, thereby simulating the shock absorption effect during actual driving. The effect is good. Because multiple sets of front arc-shaped convex seats 705 are provided, and their volume increases sequentially in the forward direction, the impact intensity and frequency on the wheel 94 can be gradually increased, thereby more comprehensively evaluating the response speed, stability, and durability of the shock absorption system when the wheel 94 moves forward. When the horizontal slide 701 moves to the end of the fifth reciprocating screw 708, it will automatically return to the origin. During this process, the L-shaped drive shaft 702 on the horizontal slide 701 will enter the conical extrusion groove 7 of the right adjusting seat 707. Inside the horizontal slide 701, the wheel 94 is pressed by the inner wall of the conical extrusion groove 700, changing its position and causing the L-shaped drive shaft 702 to move outward along the top of the horizontal slide 701. The movement of the L-shaped drive shaft 702 synchronously drives the synchronous slide 703, the rear arc-shaped protrusion 704, and the front arc-shaped protrusion 705 to move. When the horizontal slide 701 returns and separates from the conical extrusion groove 700 on the surface of the right adjusting seat 707, the rear arc-shaped protrusion 704 corresponds to the position of the wheel 94. During the return of the horizontal slide 701, the wheel 94 first moves on the top of the synchronous slide 703, simulating driving on the road, and then moves to the rear arc-shaped protrusion 704 and is impacted. After being impacted, the wheel 94 transmits the impact to the lower sliding shaft seat 93 and the shock absorber body 1. 1. The shock absorber body 11 will perform corresponding compression and rebound actions according to these impacts, thereby simulating the shock absorption effect in actual driving. The effect is good. Since multiple sets of rear arc-shaped convex seats 704 are provided, and the volume increases sequentially in the forward direction, the impact intensity and frequency on the wheel 94 can be gradually increased, thereby more comprehensively evaluating the response speed, stability and durability of the shock absorption system when the wheel 94 moves backward. When the horizontal slide 701 returns to the origin, the rotary drive mechanism 5 simultaneously separates from the conical drive tooth seat 8. During the reset process of the horizontal slide 701, the L-shaped drive shaft 702 on the horizontal slide 701 will enter the conical extrusion groove 700 of the left adjusting seat 706 and be squeezed by the inner wall of the conical extrusion groove 700, changing its position.The L-shaped drive shaft 702 moves inward along the top of the horizontal slide 701. Simultaneously, the movement of the L-shaped drive shaft 702 drives the synchronous slide 703, the rear arc-shaped boss 704, and the front arc-shaped boss 705 to move. When the horizontal slide 701 is fully reset to its origin, the L-shaped drive shaft 702 is located inside the conical extrusion groove 700 of the left adjusting seat 706, and the front arc-shaped boss 705 re-aligns with the wheel 94, facilitating the next operation.

[0080] In one embodiment of the present invention, such as Figure 9 As shown, the detection mechanism 10 includes a housing 101, an accelerometer 102, and an infrared rangefinder 103. The housing 101 is fixedly connected to a U-shaped bracket 91 and located on one side of the lower sliding shaft seat 93. The accelerometer 102 and the infrared rangefinder 103 are respectively installed on the surface of the housing 101. The sensing axis of the accelerometer 102 is parallel to the lifting direction of the lower sliding shaft seat 93. A test groove 931 with gradually increasing depth from top to bottom along the vertical direction is opened on the surface of the lower sliding shaft seat 93 corresponding to the position of the infrared rangefinder 103. The accelerometer 102 and the infrared rangefinder 103 are respectively connected to the controller 2 through a bus system to realize data transmission and control command reception.

[0081] Specifically, the structure and connection relationship of the testing mechanism 10 will be further explained. The testing mechanism 10 is the core of the motorcycle shock absorber performance testing fixture. It has a precise structure and powerful functions. It adopts a dual testing mode to ensure accurate testing. When the wheel 94 is traveling on a flat road surface (i.e., moving on the top of the synchronous slide 703, and not contacting the rear arc-shaped convex seat 704 or the front arc-shaped convex seat), the test will be conducted.

[0082] At time 705, the shock absorber body 11 is stationary. Once the wheel 94 rolls to the rear arc-shaped protrusion 704 or the front arc-shaped protrusion 705, the shock absorber body 11 is instantly compressed due to the vibration. At this time, the accelerometer 102 accurately captures the acceleration of the lower sliding axle seat 93 as it rises. Its sensing axis is parallel to the direction of the lower sliding axle seat 93's rise and fall, ensuring accurate data. At the same time, the infrared rangefinder 103 assists in evaluating the shock absorption performance by measuring the depth difference of the test groove 931. The overall performance is excellent.

[0083] In summary, the motorcycle shock absorber performance testing fixture of this invention is ingeniously designed, capable of automatically adjusting the installation direction of the shock absorber, and can perform all-round, multi-angle performance testing. It significantly improves testing efficiency while greatly reducing operational errors, ensuring the accuracy and reliability of test results, and has good performance.

[0084] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0086] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A testing fixture for motorcycle shock absorber performance, characterized in that, include: Reciprocating swing mechanism (3) and reciprocating lifting mechanism (4): are set inside the L-shaped frame (1) and one end of each extends out of the L-shaped frame (1). The extended end surfaces of the reciprocating swing mechanism (3) and the reciprocating lifting mechanism (4) are respectively fixed with a rotating disk (6) and a bearing seat (7). The reciprocating lifting mechanism (4) has a built-in rotary drive mechanism (5). One end of the rotary drive mechanism (5) penetrates into the L-shaped frame (1) and the other end of the rotary drive mechanism (5) penetrates into the bearing seat (7) and is connected to the shock absorption test assembly (70) set on the top of the bearing seat (7). Conical drive gear seat (8): Driven by a screw lifting mechanism (80) located inside the L-shaped frame (1), so as to realize vertical reciprocating lifting inside the L-shaped frame (1). The conical drive gear seat (8) is connected to one end of the rotary drive mechanism (5) that penetrates into the L-shaped frame (1), one end of the reciprocating lifting mechanism (4), or one end of the reciprocating swing mechanism (3). The reciprocating swing mechanism (3) includes a first mounting base (31), a first reciprocating lead screw (32), a movable slide (33), a connecting rod (34), a first one-way transmission (35), a first drive gear (36), and a shaped disk (37). The first mounting base (31) is fixedly connected to the inner wall of the L-shaped frame (1). The first reciprocating lead screw (32) is rotatably connected to the inner wall of the first mounting base (31). The movable slide (33) is threadedly connected to the outer surface of the first reciprocating lead screw (32) and horizontally slidably connected to the inner wall of the first mounting base (31). One end of the connecting rod (34) is hinged and fixed to the surface of the movable slide (33). One end of the lead screw (32) extends through the outside of the first mounting base (31) and is connected to the first drive gear (36) rotatably connected to the surface of the movable slide (33) through the first one-way transmission device (35). The first drive gear (36) meshes with the conical drive gear seat (8). The irregular disk (37) is rotatably connected to the inner wall of the L-shaped frame (1) and located on one side of the first mounting base (31). The other end of the connecting rod (34) is hinged and fixed to the surface of the protrusion (371) of the irregular disk (37). One end of the drive shaft (38) of the irregular disk (37) extends through the outside of the L-shaped frame (1) and is fixedly connected to the rotating disk (6). The reciprocating lifting mechanism (4) includes a second mounting base (41), a second reciprocating screw (42), a movable gear seat (43), a second one-way transmission (44), a second drive gear (45), a horizontal gear (46), a third reciprocating screw (47), and a vertical slide (48). The second mounting base (41) is fixedly connected to the inner wall of the L-shaped frame (1). The second reciprocating screw (42) is rotatably connected to the inner wall of the second mounting base (41). The movable gear seat (43) is threadedly connected to the outer surface of the second reciprocating screw (42) and horizontally slidably connected to the surface of the second mounting base (41). One end of the second reciprocating screw (42) extends out of the second mounting base (41) and is connected to the second drive gear (45) rotatably connected to the surface of the second mounting base (41) through the second one-way transmission (44). The second one-way transmission (44) has the opposite transmission direction to the first one-way transmission (35). The second drive gear (45) meshes with the conical drive gear seat (8). The horizontal gear (46) is rotatably connected to the inner wall of the L-shaped frame (1) and located on one side of the movable gear seat (43). The horizontal gear (46) meshes with the movable gear seat (43). The third reciprocating screw (47) is rotatably connected to the inner wall of the L-shaped frame (1) and fixedly connected to the surface of the horizontal gear (46). The vertical slide (48) is threaded to the outer surface of the third reciprocating screw (47) and vertically slides on the inner wall of the L-shaped frame (1). One end of the straight slide (48) extends through the outside of the L-shaped frame (1) and slides vertically on the outer surface of the L-shaped frame (1). The rotary drive mechanism (5) is located inside the vertical slide (48). One end of the rotary drive mechanism (5) extends into the inside of the L-shaped frame (1) and is connected to the conical drive tooth seat (8). The other end of the rotary drive mechanism (5) extends into the inside of the bearing seat (7) and is connected to the shock absorption test assembly (70) located on the top of the bearing seat (7). The rotary drive mechanism (5) includes a rotating shaft (51), a first bevel gear (52), a second bevel gear (53), a third one-way transmission (54), a rotating cylinder (55), a push rod (56), a convex shaft (57), a spiral guide groove (58), an outer cylinder (59), and a spring (510). The rotating shaft (51) is rotatably connected to the extended end surface of the vertical slide (48). One end of the rotating shaft (51) penetrates into the interior of the vertical slide (48) and is fixedly connected to the first bevel gear (52). The other end of the rotating shaft (51) penetrates into the interior of the bearing seat (7) and is connected to the shock absorption test assembly (70) located on the top of the bearing seat (7). The first bevel gear (52) is rotatably connected to the second bevel gear (53) on one side, and they mesh with each other. One end of the central shaft of the second bevel gear (53) is fixedly connected to the third one-way transmission (54). The other end of the third one-way transmission device (54) is fixedly connected to the rotating drum (55). The push rod (56) is horizontally slidably connected to the inner wall of the rotating drum (55). One end of the push rod (56) penetrates into the interior of the rotating drum (55) and is fixedly connected to the convex shaft (57). A spiral guide groove (58) is opened on the surface of the rotating drum (55) corresponding to the position of the convex shaft (57). One end of the convex shaft (57) is located inside the spiral guide groove (58) and is slidably connected to the inner wall of the spiral guide groove (58). The outer cylinder (59) is threadedly connected to the side surface of the vertical slide (48) located inside the L-shaped frame (1). The other end of the push rod (56) penetrates out of the outer cylinder (59) and is fixedly connected to the surface of the outer cylinder (59) with a spring (510). One end of the push rod (56) that penetrates out of the outer cylinder (59) is connected to the conical drive gear seat (8). Shock absorber mounting bracket (9): fixed on the rotating disk (6) and its bottom is in contact with the shock absorber test assembly (70). The shock absorber mounting bracket (9) is provided with a detection mechanism (10) for detecting the shock absorber body (11) installed on the shock absorber mounting bracket (9). The detection mechanism (10) and the screw lifting mechanism (80) are respectively connected to the controller (2) set on the surface of the L-shaped frame (1) through the bus system to realize data transmission and control command reception.

2. The motorcycle shock absorber performance testing fixture according to claim 1, characterized in that, The screw lifting mechanism (80) includes a drive motor (801) and a fourth reciprocating screw (802). The drive motor (801) is fixedly connected to the inner wall of the L-shaped frame (1) and connected to the controller (2) through a bus system to realize data transmission and control command reception. The fourth reciprocating screw (802) is rotatably connected to the inner wall of the L-shaped frame (1) and fixedly connected to the output end of the drive motor (801). The conical drive gear seat (8) includes a cross frame (81), a conical seat (82), and a double-sided gear seat (83). The cross frame (81) is threaded to the outer surface of the fourth reciprocating screw (802) and vertically slidably connected to the inner wall of the L-shaped frame (1). The conical seat (82) and the double-sided gear seat (83) are integrally formed on the same side of the surface of the cross frame (81). The conical seat (82) is slidably connected to one end of the push rod (56) that extends out of the outer cylinder (59). The double-sided gear seat (83) is located between the first drive gear (36) and the second drive gear (45). The double-sided gear seat (83) is meshed with the first drive gear (36) and the second drive gear (45) respectively.

3. The motorcycle shock absorber performance testing fixture according to claim 1, characterized in that, The shock absorber mounting bracket (9) includes a U-shaped bracket (91), an upper fixed shaft seat (92), a lower sliding shaft seat (93), and a wheel (94). The U-shaped bracket (91) is fixedly connected to the outer surface of the rotating disk (6). The upper fixed shaft seat (92) is fixedly connected to the inner top wall of the U-shaped bracket (91). The lower sliding shaft seat (93) is vertically slidably connected to the inner bottom wall of the U-shaped bracket (91). The two ends of the shock absorber body (11) are respectively sleeved on the outside of the positioning posts in the upper fixed shaft seat (92) and the lower sliding shaft seat (93) and fixed by nuts. The end of the lower sliding shaft seat (93) away from the positioning post passes through the bottom of the U-shaped bracket (91) and is provided with the wheel (94). The bottom of the wheel (94) is in contact with the shock absorber test assembly (70).

4. The motorcycle shock absorber performance testing fixture according to claim 3, characterized in that, The shock absorption test assembly (70) includes a horizontal slide (701), an L-shaped drive shaft (702), a synchronous slide (703), a rear arc-shaped boss (704), a front arc-shaped boss (705), a left adjusting seat (706), a right adjusting seat (707), a fifth reciprocating lead screw (708), a transmission rod (709), a synchronous gear (7010), a worm gear (7011), and a worm (7012). The horizontal slide (701) is horizontally slidably connected to the top of the bearing seat (7), and the L-shaped drive shaft (702) is horizontally slidably connected to the horizontal slide. The synchronous slide (703) is horizontally slidably connected to the top of the bearing seat (7) and located inside the horizontal slide (701). One end of the L-shaped drive shaft (702) extends through the outside of the horizontal slide (701) and is fixedly connected to the surface of the synchronous slide (703). The rear arc-shaped protrusion (704) is uniformly fixedly connected to the top of the synchronous slide (703). The front arc-shaped protrusion (705) is uniformly fixedly connected to the top of the synchronous slide (703) and located outside the rear arc-shaped protrusion (704). The left adjustment... The left and right adjustment seats (706 and 707) are fixedly connected to the top of the bearing seat (7) and located outside the horizontal slide (701). Both the left and right adjustment seats (706 and 707) have conical extrusion grooves (700) on their surfaces. The two sets of conical extrusion grooves (700) are arranged in opposite directions. The L-shaped drive shaft (702) is slidably connected to the inner walls of the two sets of conical extrusion grooves (700). The fifth reciprocating screw (708) and the transmission rod (709) are rotatably connected to the inner wall of the bearing seat (7). Synchronous gears (7010) are respectively provided at one end of the transmission rod (708) and the transmission rod (709), and they mesh with each other. The bottom of the horizontal slide (701) penetrates into the interior of the bearing seat (7) and is threaded to the outer surface of the fifth reciprocating screw (708). The other end of the transmission rod (709) is fixedly connected to a worm wheel (7011), and a worm (7012) is rotatably connected to one side of the bottom of the worm wheel (7011), and they mesh with each other. One end of the worm (7012) is fixedly connected to one end of the rotating shaft (51) that penetrates into the interior of the bearing seat (7). The front arc-shaped protrusion (705) initially corresponds to the position of the wheel (94); The arc surface of the rear arc-shaped protrusion (704) is arranged opposite to the arc surface of the front arc-shaped protrusion (705), and the volume of the multiple sets of rear arc-shaped protrusions (704) and multiple sets of front arc-shaped protrusions (705) increases sequentially from front to back along the forward direction.

5. The motorcycle shock absorber performance testing fixture according to claim 4, characterized in that, The detection mechanism (10) includes a housing (101), an accelerometer (102), and an infrared rangefinder (103). The housing (101) is fixedly connected to a U-shaped bracket (91) and located on one side of the lower sliding shaft seat (93). The accelerometer (102) and the infrared rangefinder (103) are respectively installed on the surface of the housing (101). The sensing axis of the accelerometer (102) is parallel to the lifting direction of the lower sliding shaft seat (93). The surface of the lower sliding shaft seat (93) is provided with a test groove (931) with a gradually increasing depth from top to bottom along the vertical direction, corresponding to the position of the infrared rangefinder (103). The accelerometer (102) and the infrared rangefinder (103) are respectively connected to the controller (2) through a bus system to realize data transmission and control command reception.

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