Damping wheel fatigue testing device

Abstract

The utility model relates to a damping wheel testing device, and especially relates to a damping wheel fatigue testing device comprising a pedestal; the driving mechanism comprises a motor and an eccentric disc connected with the motor; the transmission mechanism comprises a first arm part and a second arm part; the first arm part is simultaneously connected with the eccentric disc and the second arm part; the testing mechanism comprises a main shaft, a first bearing seat, a second bearing seat, a driving gear, a movable shaft and a torque sensor, the first bearing seat and the second bearing seat are arranged on the base, the main shaft is arranged on the first bearing seat in a penetrating mode, the second arm part is connected with the main shaft, the main shaft is fixedly sleeved with the driving gear, and the movable shaft is fixedly sleeved with the damping wheel; the movable shaft is arranged on the second bearing seat in a penetrating mode, the driving gear is meshed with the damping wheel, and the torque sensor is connected to the main shaft. With the adoption of the structure, the output force of the driving mechanism can be smoothly and controllably converted into the deflection force of the testing mechanism through the intervention of the transmission mechanism.

Description

Technical Field

[0001] The utility model relates to a shock-absorbing wheel testing device, and particularly to a shock-absorbing wheel fatigue testing device. Background Technique

[0002] The description of this part only provides background information related to the disclosure of the utility model, and does not constitute prior art.

[0003] A shock-absorbing wheel, also known as a buffer gear, is a gear designed to reduce vibrations and impacts in a mechanical system. It achieves this function by introducing elastic elements (such as rubber rings) between the gears. Shock-absorbing wheel fatigue testing is a test method for evaluating the performance and durability of gears under repeated loads; this test is crucial for ensuring the reliability and lifespan of gears under expected operating conditions.

[0004] In the existing devices for fatigue testing of shock-absorbing wheels, the output of the eccentric force is not stable enough, and the structure is relatively complex, with high maintenance costs.

[0005] Currently, there is no shock-absorbing wheel fatigue testing device that can solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a shock-absorbing wheel fatigue testing device, which can smoothly and controllably convert the output force of the driving mechanism into the yaw force of the testing mechanism through the intervention of the transmission mechanism.

[0007] To achieve the above purpose, the utility model discloses a shock-absorbing wheel fatigue testing device for testing a shock-absorbing wheel; the shock-absorbing wheel fatigue testing device includes:

[0008] A base;

[0009] A driving mechanism, the driving mechanism includes a motor and an eccentric disc, and the eccentric disc is arranged at the output end of the motor;

[0010] A transmission mechanism, the transmission mechanism includes a first arm portion and a second arm portion; the first end of the first arm portion is fixed in the mounting groove at a non-central position of the eccentric disc, and the second end of the first arm portion and the first end of the second arm portion are connected by a rotating bearing;

[0011] A testing mechanism, the testing mechanism comprising a main shaft, a first bearing seat, a second bearing seat, a driving gear, a movable shaft, and a torque sensor, wherein the first bearing seat and the second bearing seat are arranged on the base, the main shaft is passed through the first bearing seat, the second end of the second arm portion is rotatably sleeved on the main shaft, the driving gear is fixedly sleeved on the main shaft, the damping wheel is fixedly sleeved on the movable shaft, the movable shaft is passed through the second bearing seat, the driving gear is meshed with the damping wheel, and the torque sensor is connected to the main shaft;

[0012] When the motor drives the eccentric disk to rotate, the first arm portion drives the second arm portion to swing around the main shaft under the drive of the eccentric disk, and applies a radial force to the main shaft. The first bearing seat for supporting the main shaft has a certain redundant space, so that the main shaft can drive the driving gear to apply a yaw force to the shock absorber wheel, and the torque sensor records the yaw force.

[0013] Furthermore, the shock-absorbing wheel fatigue testing device also includes a proximity switch, which is arranged on the base near the second end of the first arm and the first end of the second arm at the rotating bearing connected, and the proximity switch is used to record the number of times the rotating bearing falls.

[0014] Furthermore, two ends of the torque sensor are respectively connected to the main shaft through two diaphragm couplings, so that the torque sensor is detachably connected to the main shaft.

[0015] Furthermore, the driving mechanism also includes an adapter bearing seat, an adapter bearing, an adapter wheel and a belt. The adapter bearing seat is arranged on the base, the adapter bearing passes through the adapter bearing seat, and the first end of the adapter bearing is fixedly sleeved with the adapter wheel, and the second end of the adapter bearing is fixedly sleeved with the eccentric disk, and the belt is simultaneously sleeved on the output end of the motor and the adapter wheel, so that the motor can drive the adapter wheel to rotate through the belt.

[0016] Furthermore, the driving mechanism comprises a plurality of eccentric disks for replacement, and the distances between the mounting groove of each eccentric disk and the center of the eccentric disk are not equal.

[0017] Furthermore, the movable shaft is arranged at the bottom of the main shaft so that the damping wheel is meshed with the driving gear at the bottom of the driving gear.

[0018] Furthermore, the axial direction of rotation of the eccentric disk is parallel to the extension direction of the main shaft.

[0019] By means of the above technical solution, the beneficial effects of the utility model are as follows:

[0020] The shock-absorbing wheel fatigue testing device of the present utility model can transfer the force of the rotating eccentric disk in the driving mechanism to the main shaft of the testing mechanism through the movable combination of the first arm part and the second arm part of the transmission mechanism, and finally convert it into the yaw force on the shock-absorbing wheel. The structure is simple and easy to maintain, and the output force is controllable.

[0021] To further understand the features and technical content of the present utility model, please refer to the following detailed description and drawings of the present utility model. However, the provided drawings are only for reference and illustration, and are not used to limit the present utility model. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in this specification. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 is a three-dimensional schematic diagram of a shock-absorbing wheel fatigue testing device provided by an embodiment of this specification;

[0024] In the figure: 100, shock-absorbing wheel; 1, base; 2, driving mechanism; 21, motor; 22, eccentric disk; 23, adapter bearing seat; 24, adapter bearing; 25, adapter wheel; 26, belt; 3, transmission mechanism; 31, first arm part; 32, second arm part; 4, testing mechanism; 41, main shaft; 42, first bearing seat; 43, second bearing seat; 44, driving gear; 45, movable shaft; 46, torque sensor; 47, diaphragm coupling; 5, proximity switch. Detailed Embodiments

[0025] In order to enable those skilled in the art to better understand the technical solutions in this specification, the following will clearly and completely describe the technical solutions in the embodiments of this specification in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only some embodiments of this specification, rather than all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this specification.

[0026] The following is to illustrate the implementation mode of the present utility model through specific specific embodiments. Those skilled in the art can understand the advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present utility model. In addition, the drawings of the present utility model are only simple schematic illustrations and are not drawn according to actual dimensions. The following implementation modes will further detail the related technical content of the present utility model, but the disclosed content is not used to limit the protection scope of the present utility model.

[0027] It should be understood that although terms such as "first", "second", "third", etc. may be used in this article to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used in this article should, depending on the actual situation, possibly include any one or a combination of multiple of the associated listed items.

[0028] Please refer to Figure 1 , which is a fatigue test device for a shock absorber wheel in this embodiment and is used to test the shock absorber wheel 100; wherein the shock absorber wheel fatigue test device includes:

[0029] Base 1;

[0030] Drive mechanism 2, the drive mechanism 2 includes a motor 21 and an eccentric disk 22, and the eccentric disk 22 is arranged at the output end of the motor 21;

[0031] Transmission mechanism 3, the transmission mechanism 3 includes a first arm portion 31 and a second arm portion 32; the first end of the first arm portion 31 is fixed in the mounting groove at a non - center position of the eccentric disk, and the second end of the first arm portion 31 and the first end of the second arm portion 32 are connected by a rotary bearing;

[0032] Testing mechanism 4, the testing mechanism 4 includes a main shaft 41, a first bearing seat 42, a second bearing seat 43, a drive gear 44, a movable shaft 45, and a torque sensor 46. The first bearing seat 42 and the second bearing seat 43 are arranged on the base, the main shaft 41 is passed through the first bearing seat 42, the second end of the second arm portion 32 is rotatably sleeved on the main shaft 41, the drive gear 44 is fixedly sleeved on the main shaft 41, the shock absorber wheel 100 is fixedly sleeved on the movable shaft 45, the movable shaft 45 is passed through the second bearing seat 43, the drive gear 44 meshes with the shock absorber wheel 100, and the torque sensor 46 is connected to the main shaft 41;

[0033] Wherein, when the motor 21 drives the eccentric disk 22 to rotate, the first arm 31 drives the second arm 32 to swing around the main shaft 41 under the drive of the eccentric disk 22, and applies a radial force to the main shaft 41. The first bearing seat 23 for supporting the main shaft 41 has a certain redundant space, so that the main shaft 41 can drive the drive gear 44 to apply a yawing force to the shock absorber wheel 100, and the torque sensor 46 records the yawing force.

[0034] For the above structure, before use, after the operator prepares the drive gear 44 with a preset size, the shock absorber wheel 100 to be detected is installed on the movable shaft 45 of the second bearing seat 43, so that the shock absorber wheel 100 meshes with the drive gear 44. Then, a preset-size eccentric disk 22 is selected, and according to the required yawing force, the first end of the first arm 31 is installed at a preset position offset from the center of the eccentric disk 22. Then, the motor 21 of the drive mechanism 2 can be started to operate. The motor 21 drives the eccentric disk 22 to rotate. Since in the transmission mechanism 3, the second end of the second arm 32 of the first arm 31 is actually in a relatively fixed state, therefore, driven by the eccentric disk 22, the first arm 31 rotates continuously, which can drive the connection between the first arm 31 and the second arm 32 to move up and down. And during the process of the connection between the first arm 31 and the second arm 32 moving up and down, the second arm 32 always applies a radial force to the main shaft 41. Under the action of the radial force, since the first bearing seat 42 for supporting the main shaft 41 has a certain redundant space, the drive gear 44 at one end of the main shaft 41 is slightly yawed under the force and continuously applies a yawing force to the shock absorber wheel 100 meshing with the drive gear 44. At the same time, since the main shaft 41 is connected to the torque sensor 46, the torque sensor 46 can also analyze the magnitude of the above yawing force in a timely manner to effectively monitor the detection process.

[0035] It should be noted that during the above use process of this embodiment, the drive mechanism 3 includes a plurality of replaceable eccentric disks 22, and the distances from the mounting grooves of each eccentric disk 22 to the center of the eccentric disk 22 are not equal. By replacing different eccentric disks 22, the swinging amplitude of the first arm 31 and the second arm 32 of the transmission mechanism 3 is adjusted, and thus the level of the radial force received on the main shaft 41 also changes to a certain extent, thereby realizing the adjustment of yawing forces of different intensities.

[0036] Of course, in another embodiment, there are also the following differences. A single eccentric disk 22 can be provided, but the eccentric disk 22 is provided with a plurality of mounting grooves with different distances from the center. When it is necessary to adjust the yawing force, only the first end of the first arm 31 needs to be installed in different mounting grooves.

[0037] Furthermore, the damping wheel fatigue test device further includes a proximity switch 5, which is disposed on the base 1 near the rotary bearing connected to the second end of the first arm 31 and the first end of the second arm 32, and is used to record the number of times the rotary bearing falls. Through the intervention of the proximity switch 5, the number of times the yaw force is applied can be monitored in real time during the operation of the drive mechanism 2, thereby improving the controllability of the test.

[0038] Furthermore, both ends of the torque sensor 46 are respectively connected to the main shaft 41 by two diaphragm couplings 47, so that the torque sensor 46 is detachably connected to the main shaft 41. Therefore, in this embodiment, by setting the torque sensor 46, the main shaft 41 is actually divided into two sections, and the torque sensor 46 is detachably placed in the middle of the two sections of the main shaft 41, so that the damping wheel fatigue test device of this embodiment can be adapted to a variety of different torque sensors 46, expanding the scope of application.

[0039] Furthermore, the driving mechanism 2 further comprises an adapter bearing seat 23, an adapter bearing 24, an adapter wheel 25 and a belt 26, wherein the adapter bearing seat 23 is arranged on the base 1, the adapter bearing 24 is passed through the adapter bearing seat 23, and the first end of the adapter bearing 24 is fixedly sleeved with the adapter wheel 25, and the second end of the adapter bearing 24 is fixedly sleeved with the eccentric disc 22, and the belt 26 is simultaneously sleeved on the output end of the motor 21 and the adapter wheel 25, so that the motor 21 can drive the adapter wheel to rotate through the belt 26. Through the above structure, the motor 21 is not directly connected to the driving mechanism 2, but is transmitted through a relatively soft belt 26 structure, so that the impact on the body of the motor 21 is weakened, and the life of the motor 21 in this embodiment is enhanced.

[0040] Furthermore, in this embodiment, the movable shaft 45 is arranged at the bottom of the main shaft 41, so that the damping wheel 100 is meshed with the driving gear 44 at the bottom of the driving gear 44. That is to say, in the above structure, the driving gear 44 presses the damping wheel 100 at its bottom, which can make the transmission of force more stable and realize the effective transmission of the yaw force with a relatively simple structure.

[0041] At the same time, it is worth noting that the axial direction of rotation of the eccentric disk 22 in this embodiment is parallel to the extension direction of the main shaft 41, which means that the moving trajectories of the first arm portion 31 and the second arm portion 32 are actually on the same plane, making the force transmission more stable.

[0042] The content disclosed above is only the preferred feasible embodiment of the present utility model, and does not limit the scope of the patent application of the present utility model. Therefore, all equivalent technical changes made by using the content of the specification and drawings of the present utility model are included in the scope of the patent application of the present utility model.

[0043] The embodiments in this specification are described in a progressive manner. For the same or similar parts between the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.

[0044] Although the present application is depicted through embodiments, those of ordinary skill in the art know that the present application has many variations and changes without departing from the spirit of the present application. It is hoped that the appended embodiments include these variations and changes without departing from the present application.

Claims

1. A shock-absorbing wheel fatigue test device for testing shock-absorbing wheels; characterized in that, The damping wheel fatigue testing device comprises: Base; A driving mechanism, the driving mechanism comprising a motor and an eccentric disk, wherein the eccentric disk is arranged at an output end of the motor; A transmission mechanism, the transmission mechanism comprising a first arm and a second arm; the first end of the first arm is fixed to a mounting groove at a non-center position of the eccentric disk, and the second end of the first arm is connected to the first end of the second arm via a rotary bearing; A testing mechanism, the testing mechanism comprising a main shaft, a first bearing seat, a second bearing seat, a driving gear, a movable shaft, and a torque sensor, wherein the first bearing seat and the second bearing seat are arranged on the base, the main shaft is passed through the first bearing seat, the second end of the second arm portion is rotatably sleeved on the main shaft, the driving gear is fixedly sleeved on the main shaft, the damping wheel is fixedly sleeved on the movable shaft, the movable shaft is passed through the second bearing seat, the driving gear is meshed with the damping wheel, and the torque sensor is connected to the main shaft; When the motor drives the eccentric disk to rotate, the first arm portion drives the second arm portion to swing around the main shaft under the drive of the eccentric disk, and applies a radial force to the main shaft. The first bearing seat for supporting the main shaft has a certain redundant space, so that the main shaft can drive the driving gear to apply a yaw force to the shock absorber wheel, and the torque sensor records the yaw force.

2. The shock-absorbing wheel fatigue test device according to claim 1, wherein: The shock-absorbing wheel fatigue testing device also includes a proximity switch, which is arranged on the base near the second end of the first arm and the first end of the second arm at the rotating bearing connected, and the proximity switch is used to record the number of times the rotating bearing falls.

3. The shock-absorbing wheel fatigue test device according to claim 1, characterized in that: Both ends of the torque sensor are respectively connected to the main shaft through two diaphragm couplings, so that the torque sensor can be detachably connected to the main shaft.

4. The shock-absorbing wheel fatigue testing device according to claim 1, characterized in that: The driving mechanism also includes an adapter bearing seat, an adapter bearing, an adapter wheel and a belt. The adapter bearing seat is arranged on the base, the adapter bearing passes through the adapter bearing seat, and the first end of the adapter bearing is fixedly sleeved with the adapter wheel, and the second end of the adapter bearing is fixedly sleeved with the eccentric disk, and the belt is simultaneously sleeved on the output end of the motor and the adapter wheel, so that the motor can drive the adapter wheel to rotate through the belt.

5. The shock-absorbing wheel fatigue test device according to claim 1, wherein: The driving mechanism comprises a plurality of eccentric disks for replacement, and the distances between the mounting groove of each eccentric disk and the center of the eccentric disk are unequal.

6. The shock-absorbing wheel fatigue testing device according to claim 1, characterized in that: The movable shaft is arranged at the bottom of the main shaft so that the damping wheel is meshed with the driving gear at the bottom of the driving gear.

7. The shock-absorbing wheel fatigue test device according to claim 1, wherein: The axial direction of rotation of the eccentric disk is parallel to the extending direction of the main shaft.

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