Steering gear test system and noise test tool
By designing a steering gear test system and utilizing the coordination of a support frame and a noise detection sensor, the problem of low efficiency of traditional detection is solved, and efficient and accurate noise detection is achieved.
Patent Information
- Application Number
- CN202422242966.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-09-12
AI Technical Summary
Traditional electric power steering system noise detection is inefficient and cannot guarantee the uniqueness of each test position.
A steering gear test system is adopted, which includes a noise detection sensor and a support frame. The support frame is driven by a driving member to make the steering gear and the noise detection sensor movably abut against each other, avoiding the use of clips to fix the sensor, thereby ensuring test accuracy.
The accuracy and efficiency of noise detection are improved, and the problems of sensor inadequate contact or excessive impact force are avoided.
Smart Images
Figure CN223461270U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of steering gear, specifically relates to steering gear test system and noise test frock. BACKGROUND
[0002] At present, electric power steering system (EPS) is more and more used in various vehicle types, since electric power steering system is mainly driven by the power motor to realize the big torque output of worm gear reducer mechanism to reach the power effect, the noise generated by worm gear reducer mechanism is gap impact noise, and it is the main source of noise abnormal sound. Since automobile noise as an important index to evaluate the comfort of automobile gradually attracts people's attention and importance, will directly affect the comfort of the passengers, therefore, the electric power steering system will be detected before leaving the factory. The traditional way is that the artificial adopts the clamp and fixes the vibration sensor on the steering gear, which is not only low in efficiency, but also cannot guarantee the uniqueness of the test position every time. INVENTION CONTENTS
[0003] The utility model provides to the above -mentioned problem, proposes a kind of steering gear test system and noise test frock, steering gear abuts noise detection sensor, avoid using clamp and hold sensor in steering gear, ensure the accuracy of test.
[0004] The technical scheme adopted by the utility model is as follows: a noise test frock, including first support frame and noise detection sensor, the noise detection sensor includes sensing head, sensing shell and sensing cable, one end of the sensing cable is connected with the sensing head, the other end of the sensing cable passes through the sensing shell and extends to outside the sensing shell, the first support frame is equipped with the first through hole for the sensing shell to pass through.
[0005] Optionally, the first through hole is passed through by a limiting piece, the limiting piece includes a first limiting block and a second limiting block integrally connected with the first limiting block, the first limiting block abuts on one side of the first support frame, the second limiting block passes through the first through hole and extends to the other side of the first support frame, and the limiting piece is provided with a second through hole for the sensing shell to pass through.
[0006] Optionally, the length of the second limiting block is greater than the length of the first through hole.
[0007] Optionally, the first limiting block is installed on one side of the first support frame by a screw.
[0008] Optionally, the sensing shell includes a first shell and a second shell connected with the first shell, the second shell is in sliding fit with the second through hole, the diameter of the first shell is greater than the diameter of the second through hole, and a spring is arranged between the first shell and the first limiting block.
[0009] Optionally, the number of noise detection sensors is multiple, and the multiple noise detection sensors are arranged at intervals along the length direction of the first support frame.
[0010] The utility model discloses still a kind of steering gear testing system, including rack, driving part, second support frame for supporting steering gear and the noise testing tool described above, first support frame one end is installed on rack, and first support frame other end is equipped with noise detection sensor, the driving part drives second support piece to slide along rack, to make steering gear and noise detection sensor movable abut.
[0011] Optionally, the driving part is a linear motor, a pneumatic cylinder or a hydraulic cylinder.
[0012] The utility model discloses beneficial effect is: driving part drives second support frame to slide along rack, make the steering gear on second support frame abut noise detection sensor, pass through noise detection sensor collection steering gear generated when working, avoid using clamp and hold sensor on steering gear, ensure the accuracy of test.Spring one end abuts first limit block, and spring other end abuts first shell, when second support piece drives steering gear and abuts noise detection sensor, spring plays the role of buffer, avoid steering gear and noise detection sensor contact not in place, or the drawback of excessive impact force of steering gear to noise detection sensor. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 The structure diagram of steering gear testing system for the embodiment of the utility model is provided;
[0014] Figure 2 The structure diagram of noise testing tool for the embodiment of the utility model is provided.
[0015] The marks in each drawing are: 1, first support frame;2, noise detection sensor;21, sensing head;22, sensing shell;221, first shell;222, second shell;23, sensing cable;3, limiting piece;31, first limit block;32, second limit block;4, spring;5, rack;6, driving part;7, second support frame;8, steering gear. DETAILED DESCRIPTION
[0016] The present application will be further described in detail below in conjunction with the drawings and examples.
[0017] As Figure 1 And 2As shown in the figure, a kind of diverter test system, including rack 5, driving piece 6, the second support frame 7 for supporting diverter 8 and noise test tool, the first support frame 1 one end is mounted on rack 5, the first support frame 1 other end is equipped with noise detection sensor 2, the driving piece 6 drives the second support along rack 5 sliding, so that diverter 8 with noise detection sensor 2 active abutment.The driving piece 6 drives the second support frame 7 along rack 5 sliding, so that diverter 8 on the second support frame 7 abuts noise detection sensor 2, so set, the noise generated by diverter 8 in work is collected by noise detection sensor 2, avoids using clip to hold sensor on diverter 8, ensures the accuracy of test.The driving piece 6 is linear motor, and the second support frame 7 is installed on the slide table of linear motor.In other examples, the driving piece 6 can be cylinder or hydraulic cylinder.
[0018] The utility model discloses a kind of noise test tools, including first support frame 1 and noise detection sensor 2, the noise detection sensor 2 includes sensing head 21, sensing shell 22 and sensing cable 23, one end of the sensing cable 23 is connected with sensing head 21, sensing cable 23 other end passes through sensing shell 22 and extends to outside sensing shell 22, the first support frame 1 is equipped with the first through-hole for sensing shell 22 to pass through.Sensing head 21 with diverter 8 active abutment, collect the noise generated by diverter 8 in work, so set, avoids using clip to hold sensor on diverter 8, ensures the accuracy of test.The number of the noise detection sensor 2 is multiple, and multiple noise detection sensor 2 is interval setting along the length direction of first support frame 1.Multiple noise detection sensor 2 can carry out noise collection to multiple positions of diverter 8, ensure the accuracy of detection.
[0019] As shown in the figure, Figure 2 The limiting piece 3 is passed in the first through-hole, the limiting piece 3 includes first limiting block 31 and second limiting block 32 integrally connected with the first limiting block 31, the first limiting block 31 abuts on one side of the first support frame 1, and the second limiting block 32 passes through the first through-hole and extends to the other side of the first support frame 1, and the limiting piece 3 is provided with the second through-hole for the sensing shell 22 to pass through.The length of the second limiting block 32 is greater than the length of the first through-hole.The length of the second limiting block 32 is longer, so that the sensing shell 22 is better supported.The first limiting block 31 is mounted on one side of the first support frame 1 by screw.The second limiting block 22 is cylindrical, which is convenient for cooperation with the first through-hole.
[0020] As shown in the figure, Figure 2As shown, the sensing shell 22 comprises a first shell 221 and a second shell 222 connected with the first shell 221, the second shell 222 is in sliding fit with the second through hole, the diameter of the first shell 221 is larger than that of the second through hole, and the spring 4 is arranged between the first shell 221 and the first limiting block 31. One end of the spring 4 abuts against the first limiting block 31, and the other end of the spring 4 abuts against the first shell 221. When the second support member drives the deflector 8 to abut against the noise detection sensor 2, the spring 4 plays a buffering role, so that the deflector 8 cannot be in contact with the noise detection sensor 2 out of position, or the deflector 8 cannot impact the noise detection sensor 2 with excessive force.
[0021] It can be understood that the specific embodiments described above are only used to explain the related utility model, and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for the convenience of description. The multiple technical solutions in the same embodiment and the multiple technical solutions between different embodiments can be arranged and combined to form new technical solutions without contradiction or conflict. Any equivalent structural transformation, direct or indirect application in other related technical fields, is also included in the protection scope of the utility model.
Claims
1. A noise test fixture, characterized by, The noise detection sensor comprises a sensing head, a sensing shell and a sensing cable, one end of the sensing cable is connected with the sensing head, the other end of the sensing cable passes through the sensing shell and extends out of the sensing shell, the first support frame is provided with a first through hole for the sensing shell to pass through; A limiting piece is arranged in the first through hole, the limiting piece comprises a first limiting block and a second limiting block which is integrally connected with the first limiting block, the first limiting block abuts against one side of the first support frame, the second limiting block passes through the first through hole and extends to the other side of the first support frame, the limiting piece is provided with a second through hole for the sensing shell to pass through; The length of the second limiting block is greater than the length of the first through hole; The sensing shell comprises a first shell and a second shell connected with the first shell, the second shell is in sliding fit with the second through hole, the diameter of the first shell is greater than the diameter of the second through hole, and a spring is arranged between the first shell and the first limiting block.
2. The noise test tooling of claim 1, wherein, The first limiting block is mounted on one side of the first support frame by a screw.
3. The noise test fixture of claim 1, wherein, The number of the noise detection sensors is multiple, and the multiple noise detection sensors are arranged at intervals along the length direction of the first support frame.
4. A steering gear tester system characterized by, The noise detection sensor comprises a sensing head, a sensing shell and a sensing cable, one end of the sensing cable is connected with the sensing head, the other end of the sensing cable passes through the sensing shell and extends out of the sensing shell, the first support frame is provided with a first through hole for the sensing shell to pass through; 5. The diverter test system of claim 4, wherein, A limiting piece is arranged in the first through hole, the limiting piece comprises a first limiting block and a second limiting block which is integrally connected with the first limiting block, the first limiting block abuts against one side of the first support frame, the second limiting block passes through the first through hole and extends to the other side of the first support frame, the limiting piece is provided with a second through hole for the sensing shell to pass through; The length of the second limiting block is greater than the length of the first through hole; The sensing shell comprises a first shell and a second shell connected with the first shell, the second shell is in sliding fit with the second through hole, the diameter of the first shell is greater than the diameter of the second through hole, and a spring is arranged between the first shell and the first limiting block. The first limiting block is mounted on one side of the first support frame by a screw. The number of the noise detection sensors is multiple, and the multiple noise detection sensors are arranged at intervals along the length direction of the first support frame. The noise detection sensor comprises a sensing head, a sensing shell and a sensing cable, one end of the sensing cable is connected with the sensing head, the other end of the sensing cable passes through the sensing shell and extends out of the sensing shell, the first support frame is provided with a first through hole for the sensing shell to pass through; A limiting piece is arranged in the first through hole, the limiting piece comprises a first limiting block and a second limiting block which is integrally connected with the first limiting block, the first limiting block abuts against one side of the first support frame, the second limiting block passes through the first through hole and extends to the other side of the first support frame, the limiting piece is provided with a second through hole for the sensing shell to pass through; The length of the second limiting block is greater than the length of the first through hole; The sensing shell comprises a first shell and a second shell connected with the first shell, the second shell is in sliding fit with the second through hole, the diameter of the first shell is greater than the diameter of the second through hole, and a spring is arranged between the first shell and the first limiting block. The first limiting block is mounted on one side of the first support frame by a screw. The number of the noise detection sensors is multiple, and the multiple noise detection sensors are arranged at intervals along the length direction of the first support frame. The noise detection sensor comprises a sensing head, a sensing shell and a sensing cable, one end of the sensing cable is connected with the sensing head, the other end of the sensing cable passes through the sensing shell and extends out of the sensing shell, the first support frame is provided with a first through hole for the sensing shell to pass through; A limiting piece is arranged in the first through hole, the limiting piece comprises a first limiting block and a second limiting block which is integrally connected with the first limiting block, the first limiting