A tire pressure sensor comprehensive test device simulating automobile tire running conditions

Abstract

The utility model discloses a kind of tire pressure sensor comprehensive test equipment of simulating automobile tire driving condition, comprising: box;Sealed cabin, it includes cabin body, hatch, acceleration turntable and turntable rotating shaft;Drive module, it includes driving motor, speed reducer and magneto fluid seal rotating shaft, the input of speed reducer is connected to the output of driving motor, the output of speed reducer is connected magneto fluid seal rotating shaft, and magneto fluid seal rotating shaft end is connected turntable rotating shaft;Temperature control module, it includes refrigeration pipe and heating ring;Air pressure module, it includes inflation pipe and proportional valve, and proportional valve is provided on inflation pipe;Control module, it includes PLC controller and industrial computer, and industrial computer is used to carry out the programmatic control of drive module, temperature control module, air pressure module.The utility model compared with prior art, solve the problem that existing test equipment cannot simultaneously simulate temperature, air pressure, acceleration three kinds of environmental conditions inside tire working condition simulation effect is not good.

Description

Technical Field

[0001] This utility model relates to the field of tire pressure sensor testing technology, and in particular to a comprehensive tire pressure sensor testing device that simulates the driving conditions of automobile tires. Background Technology

[0002] Tire pressure sensors are mounted on the tire valve stems. Temperature, air pressure, and acceleration are important environmental stresses for evaluating the quality of tire pressure sensors. By using a three-dimensional test, the environmental conditions under which tire pressure sensors operate in a vehicle can be more realistically simulated, thereby verifying their reliability.

[0003] Among the existing testing equipment for tire pressure sensors, temperature tests can be carried out using temperature chambers, air pressure tests can be carried out using air pressure equipment, and acceleration tests can be carried out using rotational testing equipment. However, each of these tests is conducted on a specific environmental condition.

[0004] Currently, there is a lack of comprehensive testing equipment that can simultaneously simulate three environmental conditions: temperature, air pressure, and acceleration. This means that the rotation test of the tire pressure sensor cannot realistically simulate the internal working conditions of the tire when the vehicle is in motion, affecting the effectiveness of tire pressure sensor reliability verification. Utility Model Content

[0005] The purpose of this invention is to provide a comprehensive tire pressure sensor testing device that simulates the driving conditions of automobile tires, so as to solve the problem that the existing testing devices cannot simultaneously simulate the internal working conditions of tires due to the poor simulation effect.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a comprehensive tire pressure sensor testing device for simulating automobile tire driving conditions, comprising: Box; The sealed chamber includes a chamber body, a cover, an acceleration turntable, and a turntable shaft. The cover is hinged to one side of the chamber body. The turntable shaft is rotatably installed inside the chamber body. The acceleration turntable is fixedly installed on the turntable shaft. The tire pressure sensor is detachably installed on the acceleration turntable. The drive module includes a drive motor, a reducer, and a magnetic fluid sealed shaft. The output end of the drive motor is connected to the input end of the reducer, the output end of the reducer is connected to the magnetic fluid sealed shaft, and the end of the magnetic fluid sealed shaft is connected to the turntable shaft. The temperature control module includes a cooling pipe and a heating coil. The cooling pipe is fixedly installed on the inner wall of the cabin, and the heating coil is fixedly installed inside the cabin. The rotating shaft of the turntable passes through the heating coil. The air pressure module includes an inflation pipe and a proportional valve. One end of the inflation pipe is connected to the air source, and the other end is connected to the cabin. The proportional valve is installed on the inflation pipe. The control module includes a PLC controller and an industrial control computer. The PLC controller is used to control the speed of the drive motor, and the industrial control computer is used for programmed control of the drive module, temperature control module, and air pressure module.

[0007] As a further description of the above technical solution: The acceleration turntable is detachably mounted on the turntable shaft.

[0008] As a further description of the above technical solution: The box is fitted with a door panel, which is hinged to the box.

[0009] As a further description of the above technical solution: An observation window is provided on the door panel.

[0010] As a further description of the above technical solution: The refrigeration pipes spiral downwards along the inner wall of the cabin.

[0011] As a further description of the above technical solution: Two parallel distance sensors are installed below the heating coil. The distance sensors are fixedly mounted on the cabin body and their positions correspond to the clearance holes on the heating coil. The distance sensors are used to detect the distance to the acceleration turntable.

[0012] As a further description of the above technical solution: The enclosure is also equipped with a bracket and a mounting plate. The enclosure is fixedly mounted on the mounting plate. The drive motor is fixedly mounted on the lower side of the mounting plate via a first mounting seat. The reducer is fixedly mounted on the lower side of the mounting plate via a second mounting seat. Pads are fixed at the four inner corners of the bottom of the mounting plate and are fixedly mounted on the bracket.

[0013] As a further description of the above technical solution: The reducer has symmetrically arranged second mounting seats on both sides.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this utility model, the industrial control computer can realize the program setting, curve display, and data export of parameters such as temperature, air pressure, and acceleration. The PLC controller and the industrial control computer work together to realize the programmed control of the drive motor, temperature control module, and proportional valve, and realize the comprehensive test of three conditions: temperature, air pressure, and acceleration. They can also be combined in pairs to realize temperature and air pressure test, temperature rotation test, and air pressure rotation test, which more realistically simulates the tire driving conditions.

[0015] 2. In this utility model, the drive module is connected to the turntable shaft through a magnetic fluid sealing shaft, so that the drive module and the sealed chamber form a zero-leakage connection, ensuring the sealing between the shaft and the sealed chamber and effectively controlling the air pressure inside the sealed chamber. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a comprehensive tire pressure sensor testing device that simulates the driving conditions of automobile tires.

[0018] Figure 2 This is a cross-sectional view of a comprehensive tire pressure sensor testing device that simulates the driving conditions of automobile tires.

[0019] Figure 3 This is a schematic diagram of the sealed chamber in a comprehensive tire pressure sensor testing device that simulates the driving conditions of automobile tires.

[0020] Figure 4 This is a cross-sectional view of a sealed chamber in a tire pressure sensor integrated testing device that simulates the driving conditions of automobile tires.

[0021] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0022] Legend: 1. Housing; 11. Door panel; 12. Observation window; 13. Distance sensor; 14. Bracket; 15. Mounting plate; 151. Pad; 16. First mounting seat; 17. Second mounting seat; 2. Sealed chamber; 21. Chamber body; 211. Inflation pipe; 22. Chamber cover; 23. Acceleration turntable; 24. Turntable shaft; 3. Drive motor; 4. Reducer; 5. Magnetohydrodynamic sealing shaft; 7. Refrigeration pipe; 8. Heating coil; 9. Tire pressure sensor. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. Example 1

[0025] Please see Figure 1-5 This utility model provides a technical solution: a comprehensive tire pressure sensor testing device for simulating automobile tire driving conditions, comprising: Box 1; The sealed chamber 2 includes a chamber body 21, a cover 22, an acceleration turntable 23, and a turntable shaft 24. The cover 22 is hinged to one side of the chamber body 21. After the cover 22 is closed, it can be locked to the chamber body 21 by means of bolts or other methods. The turntable shaft 24 is rotatably installed inside the chamber body 21. The acceleration turntable 23 is fixedly installed on the turntable shaft 24. The tire pressure sensor 9 is detachably installed on the acceleration turntable 23. The drive module includes a drive motor 3, a reducer 4, and a magnetic fluid sealed shaft 5. The output end of the drive motor 3 is connected to the input end of the reducer 4, the output end of the reducer 4 is connected to the magnetic fluid sealed shaft 5, and the end of the magnetic fluid sealed shaft 5 is connected to the turntable shaft 24. The temperature control module includes a cooling pipe 7 and a heating coil 8. The cooling pipe 7 is fixedly installed on the inner wall of the cabin 21, and the heating coil 8 is fixedly installed inside the cabin 21. The turntable shaft 24 passes through the heating coil 8, and the heating coil 8 is located below the acceleration turntable 23. The air pressure module includes an inflation pipe 211 and a proportional valve. One end of the inflation pipe 211 is connected to an air source, and the other end is connected to the cabin 21. A proportional valve is installed on the inflation pipe 211. The control module includes a PLC controller and an industrial control computer. The PLC controller is used to control the speed of the drive motor 3, and the industrial control computer is used for programmed control of the drive module, temperature control module, and air pressure module.

[0026] The industrial control computer can program and display parameters such as temperature, air pressure, and acceleration, as well as export data. The PLC controller works in conjunction with the industrial control computer to achieve programmed control of the drive motor 3, temperature control module, and proportional valve, enabling comprehensive testing under three conditions: temperature, air pressure, and acceleration. They can also be combined in pairs to achieve temperature and air pressure tests, temperature rotation tests, and air pressure rotation tests, providing a more realistic simulation of tire driving conditions.

[0027] The drive module is connected to the turntable shaft 24 through the magnetohydrodynamic sealed shaft 5, so that the drive module and the sealed chamber 2 form a zero-leakage connection, ensuring the sealing between the shaft and the sealed chamber 2 and effectively controlling the air pressure inside the sealed chamber 2.

[0028] The chamber 1 is equipped with a door panel 11, which is hinged to the chamber 1. The door panel 11 is equipped with an observation window 12. The sealed chamber 2 is located inside the chamber 1. The tire pressure sensor 9 can be placed into or taken out of the sealed chamber 2 through the openable door panel. The test conditions can be observed through the observation window 12 on the door panel 11.

[0029] Working principle: The sealed chamber 2 is connected to the air source through the air filling pipe 211. The air pressure inside the sealed chamber 2 is controlled by the proportional valve to realize the air pressure test. The air pressure is adjustable from 0 to 350 MPa. Multiple tire pressure sensors 9 can be installed in the mounting holes of the acceleration turntable 23 to conduct acceleration rotation tests of multiple tire pressure sensors 9 simultaneously. The PLC controller controls the speed change of the drive motor 3 to achieve the change of acceleration. The acceleration is adjustable from 0 to 2000g. The sealed chamber 2 uses a refrigeration pipe 7 in conjunction with a compressor for refrigeration, and a heating coil 8 for heating, thereby enabling high temperature, low temperature, and temperature cycling tests. The temperature is adjustable from -30℃ to 85℃. Example 2

[0030] Based on the above embodiments, this embodiment further improves upon the following technical solution: the acceleration turntable 23 is detachably mounted on the turntable shaft 24.

[0031] The acceleration turntable 23 is mounted on the top of the turntable shaft 24. The locking bolt passes through the acceleration turntable 23 and is threaded onto the turntable shaft 24, enabling the acceleration turntable 23 to be detached and installed, thus facilitating the installation and removal of the tire pressure sensor 9 on the acceleration turntable 23. Example 3

[0032] Based on the above embodiments, this embodiment further improves upon the following technical solution: the refrigeration pipe 7 spirals downward along the inner wall of the cabin 21 to achieve uniform cooling and ensure the quality of temperature adjustment. Example 4

[0033] Based on the above embodiments, this embodiment further improves upon the following technical solution: two parallel distance sensors 13 are arranged below the heating coil 8. The distance sensors 13 are fixedly installed on the cabin 21. The positions of the distance sensors 13 correspond to the clearance holes on the heating coil 8. The distance sensors 13 are used to detect the distance to the acceleration turntable 23.

[0034] Two parallel distance sensors 13 monitor the rotation of the acceleration turntable 23 by measuring the change in distance between them, ensuring the reliability of the experimental data from the acceleration rotation test. Example 5

[0035] Based on the above embodiments, this embodiment further improves upon the following technical solutions: a bracket 14 and a mounting plate 15 are provided inside the housing 1. The housing 21 is fixedly mounted on the mounting plate 15. The drive motor 3 is fixedly mounted on the lower side of the mounting plate 15 via the first mounting seat 16. The reducer 4 is fixedly mounted on the lower side of the mounting plate 15 via the second mounting seat 17. Pads 151 are fixed at the four inner corners of the bottom of the mounting plate 15 and are fixedly mounted on the bracket 14.

[0036] The sealed chamber 2 is designed to be suspended above the ground by mounting plate 15 and pad 151, and the drive motor 3 and reducer 4 are suspended on the lower side of mounting plate 15 to reduce vibration during acceleration rotation test and facilitate heat dissipation.

[0037] Preferably, the reducer 4 is provided with symmetrically arranged second mounting seats 17 on both sides to improve the installation firmness of the reducer 4.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A comprehensive tire pressure sensor testing device for simulating automobile tire driving conditions, characterized in that, include: Box; A sealed chamber includes a chamber body, a cover, an acceleration turntable, and a turntable shaft. The cover is hinged to one side of the chamber body. The turntable shaft is rotatably mounted inside the chamber body. The acceleration turntable is fixedly mounted on the turntable shaft. A tire pressure sensor is detachably mounted on the acceleration turntable. A drive module includes a drive motor, a reducer, and a magnetic fluid sealed shaft. The output end of the drive motor is connected to the input end of the reducer, the output end of the reducer is connected to the magnetic fluid sealed shaft, and the end of the magnetic fluid sealed shaft is connected to the turntable shaft. The temperature control module includes a cooling pipe and a heating coil. The cooling pipe is fixedly installed on the inner wall of the cabin, and the heating coil is fixedly installed inside the cabin. The rotating shaft of the turntable passes through the heating coil. The air pressure module includes an inflation pipe and a proportional valve. One end of the inflation pipe is connected to an air source, and the other end is connected to the cabin. The proportional valve is installed on the inflation pipe. The control module includes a PLC controller and an industrial control computer. The PLC controller is used to control the speed change of the drive motor, and the industrial control computer is used for programmed control of the drive module, temperature control module, and air pressure module.

2. The tire pressure sensor comprehensive test device for simulating the running conditions of vehicle tires according to claim 1, characterized in that, The acceleration turntable is detachably mounted on the turntable shaft.

3. The tire pressure sensor comprehensive test device for simulating the running conditions of vehicle tires according to claim 1, characterized in that, The box body is provided with a door panel, which is hinged to the box body.

4. The tire pressure sensor comprehensive test device for simulating the running conditions of vehicle tires according to claim 3, characterized in that, An observation window is provided on the door panel.

5. The tire pressure sensor comprehensive test device for simulating the running conditions of vehicle tires according to claim 1, characterized in that, The refrigeration pipe spirals downwards along the inner wall of the cabin.

6. The tire pressure sensor comprehensive test device for simulating the running conditions of vehicle tires according to claim 1, characterized in that, Two parallel distance sensors are arranged below the heating coil. The distance sensors are fixedly installed on the cabin body and their positions correspond to the clearance holes on the heating coil. The distance sensors are used to detect the distance to the acceleration turntable.

7. The comprehensive tire pressure sensor testing equipment for simulating automobile tire driving conditions according to claim 1, characterized in that, The housing is also equipped with a bracket and a mounting plate. The housing is fixedly mounted on the mounting plate. The drive motor is fixedly mounted on the lower side of the mounting plate via a first mounting seat. The reducer is fixedly mounted on the lower side of the mounting plate via a second mounting seat. Pads are fixed at the four inner corners of the bottom of the mounting plate and are fixedly mounted on the bracket.

8. The tire pressure sensor comprehensive test device for simulating the running conditions of vehicle tires according to claim 7, characterized in that, The reducer is provided with symmetrically arranged second mounting bases on both sides.

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