Tire braking simulation device

Abstract

The utility model discloses a tire braking simulation device which comprises a support and a brake, the brake is installed on the support, and the brake is configured to be capable of starting and braking. The transmission shaft is rotationally installed on the support, one end of the transmission shaft is connected with the brake, the other end of the transmission shaft is connected with the inertia driving device, and the inertia driving device is configured to be capable of driving the transmission shaft to rotate so as to drive the brake to act; the temperature detection device is connected with the transmission shaft and is used for detecting the temperature of the transmission shaft; the rotating speed detection device is connected with the transmission shaft and is used for detecting the rotating speed of the transmission shaft; the torque detection device is connected between the inertia driving device and the transmission shaft and is used for detecting the torque output by the inertia driving device; the real scene can be highly restored in the laboratory environment to simulate the braking behavior in the vehicle driving process, the test cost is low, and the test efficiency, authenticity, accuracy and reliability are high.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle emission pollutant technical field especially relates to a tire brake simulation device. BACKGROUND

[0002] With the continuous development of road traffic, the influence of pollutants emitted by automobiles on human health and the environment is increasingly prominent, and has become the focus of public and scientific attention. Non-tail gas emissions (such as brake wear particles and tire wear particles) are one of the main sources of particulate matter emissions, posing a significant risk to air quality. Research has found that harmful metal components (such as iron, copper, etc.) in brake wear particles have toxic effects on brain and heart cells, which cannot be ignored. The size of these particulate matters is usually within the range of PM10 (diameter less than or equal to 10 microns) or PM2.5 (diameter less than or equal to 2.5 microns), which can enter the human body through the respiratory system and cause long-term harm to health. Therefore, it is of great practical significance and urgent need to conduct brake tests on actual vehicles and accurately detect automobile brake emission particulate matter to develop effective emission reduction measures.

[0003] However, there are many deficiencies in the current automobile brake emission particulate matter detection test. On the one hand, traditional detection methods often rely on actual road tests, which not only have high costs and low efficiency, but also are difficult to distinguish brake friction generated particulate matter from other traffic generated aerosols and particulate matter in the external air, resulting in inaccurate detection results. On the other hand, although there are some laboratory test devices for simulating the braking process, these devices cannot equivalently simulate the influence of automobile inertia, driving speed, and temperature on brake wear and particulate matter emissions, thereby limiting the accuracy and reliability of the test. In addition, the existing test devices can only perform one of constant pressure braking or constant torque braking, and cannot comprehensively simulate the complex braking process of the brake on the actual vehicle, resulting in deviations between the test results and the actual situation. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a tire brake simulation device to solve the problem of high cost, low efficiency, and inaccurate results in the process of simulating brake of brake in the prior art, and the problem of test deviation caused by the inability of laboratory test devices to equivalently simulate the influence of automobile inertia, driving speed, and temperature.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A tire brake simulation device, comprising:

[0007] a support and a brake, the brake being installed on the support, the brake being configured to be able to start and stop;

[0008] An inertia driving device and a transmission shaft, the transmission shaft is rotatably installed on a support, one end of the transmission shaft is connected with a brake, the other end is connected with the inertia driving device, the inertia driving device is configured to drive the transmission shaft to rotate to drive the brake to act;

[0009] A temperature detection device connected with the transmission shaft for detecting the temperature of the transmission shaft;

[0010] A rotation speed detection device connected with the transmission shaft for detecting the rotation speed of the transmission shaft;

[0011] A torque detection device connected between the inertia driving device and the transmission shaft for detecting the torque output by the inertia driving device.

[0012] According to the above technical means, the inertia driving device as a power source drives the transmission shaft to drive the brake to start and stop, and combined with the temperature detection device, the rotation speed detection device and the torque detection device, the real scene can be restored according to the inertia of the automobile, the driving speed, the temperature and the torque braking height, to simulate the braking behavior of the vehicle in driving, so that the performance test and the particulate matter emission research of the brake can be carried out in the laboratory environment, which not only reduces the test cost, but also improves the test efficiency, the authenticity, the accuracy and the reliability, and provides strong technical support for reducing non-exhaust emission pollution research; in addition, based on the real-time monitoring function of the temperature detection device, the rotation speed detection device and the torque detection device, researchers can comprehensively obtain the key parameters such as temperature, rotation speed and torque during the braking process of the brake, and through the analysis of these parameters, the accurate evaluation of the brake pollutant emission can be realized, which provides strong technical support for reducing non-exhaust emission pollution research.

[0013] Further, the inertia driving device includes a motor, the output shaft of the motor is connected with the transmission shaft through the torque detection device, and the motor is configured to drive the output shaft to drive the torque detection device to drive the transmission shaft to rotate to drive the brake to act.

[0014] According to the above technical means, the motor as a power source, its output shaft is connected with the transmission shaft through the torque detection device, forming a complete power transmission system, realizing the accurate simulation of the braking behavior of the vehicle brake, the motor driving has higher energy efficiency and lower noise level, which is very important for long-time running and accurate test in the laboratory environment, and the maintenance and maintenance of the motor are relatively simple, reducing the overall operation cost; at the same time, the torque detection device not only ensures the accuracy and stability of torque transmission, but also can monitor the change of torque in real time, which provides strong support for in-depth study of braking performance and particulate matter emission.

[0015] Further, the inertia driving device further comprises a flywheel disc, a flywheel shaft and a flywheel seat, the flywheel disc is installed on the flywheel shaft, the flywheel shaft is rotatably installed on the flywheel seat, one end of the flywheel shaft is connected with the output shaft of the motor, and the other end is connected with the transmission shaft through the torque detection device, and the flywheel disc is configured to store and release energy.

[0016] According to the above technical means, the output shaft of the motor is connected with the torque detection device through the flywheel shaft and the flywheel disc to drive the transmission shaft, forming a stable and efficient energy storage and release system, so that the flywheel disc can rotate under the drive of the motor, store energy, and release energy when the motor stops, to simulate the inertia effect in real vehicle driving, and at the same time, the torque detection device can monitor the torque change between the flywheel shaft and the transmission shaft in real time, providing more accurate and comprehensive data support for in-depth study of braking performance and particulate matter emission.

[0017] Further, the inertia driving device further comprises two diaphragm couplings, two said diaphragm couplings are respectively installed at both ends of the flywheel shaft, one of said diaphragm couplings is connected with the output shaft of the motor, and the other said diaphragm coupling is connected with the torque detection device.

[0018] According to the above technical means, the diaphragm coupling has the advantages of compact structure, light weight and small rotational inertia, which improves the overall performance and response speed of the inertia driving device, and at the same time, the elastic connection characteristics of the diaphragm coupling can effectively absorb and buffer the vibration and impact in the transmission process, thereby prolonging the service life of the device and improving the stability of its operation; through the installation of two diaphragm couplings at both ends of the flywheel shaft, the key connection and transmission effect is achieved, specifically, one diaphragm coupling is closely connected with the output shaft of the motor, ensuring that the motor can stably and efficiently drive the flywheel shaft to rotate, and the other diaphragm coupling is connected with the torque detection device, so that the torque detection device can stably transmit power and accurately and real-timely monitor the torque change between the flywheel shaft and the transmission shaft, improving the stability and efficiency of the transmission, and making the entire inertia driving device perform more outstanding performance and reliability in response to various complex working conditions.

[0019] Further, the torque detection device comprises a torque sensing shaft, a mounting seat and a torque processor, the torque sensing shaft is rotatably installed on the mounting seat, one end of the torque sensing shaft is connected with the adjacent diaphragm coupling, and the other end is connected with the transmission shaft, the torque processor is in communication connection with the torque sensing shaft, the torque sensing shaft is used for transmitting torque, and the torque processor is configured to detect the torque output by the motor according to the torque signal transmitted by the torque sensing shaft.

[0020] According to the above technical means, the torque sensing shaft rotates on the mounting seat, one end is connected with the diaphragm coupling, and the other end is connected with the transmission shaft, which is responsible for power transmission and real-time collection of torque signals; the torque processor communicates with the torque sensing shaft, can accurately receive and quickly and accurately analyze and process the torque signals transmitted by the torque sensing shaft, so as to measure the torque value output by the motor in real time, and the stability and reliability are good.

[0021] Further, the temperature detection device comprises a conductive slip ring, a mounting bracket and a temperature processor, the conductive slip ring is sleeved on the transmission shaft and is installed on the support through the mounting bracket, the temperature processor is in communication connection with the conductive slip ring, the conductive slip ring is used for transmitting the temperature signal of the transmission shaft, and the temperature processor is configured to detect the temperature of the transmission shaft according to the temperature signal transmitted by the conductive slip ring.

[0022] According to the above technical means, the conductive slip ring is sleeved on the transmission shaft and is fixed to the support through the mounting bracket, which can collect temperature signals in real time with high sensitivity; the temperature processor is in communication connection with the conductive slip ring, which can accurately receive and quickly and accurately analyze and process the temperature signal, so as to detect the temperature state of the transmission shaft in real time, and the stability and reliability are good.

[0023] Further, the rotation speed detection device comprises a first synchronous pulley, a second synchronous pulley, a synchronous belt and an encoder, the first synchronous pulley is coaxially installed on the transmission shaft, the second synchronous pulley is coaxially installed on the transmission shaft of the encoder, and the two ends of the synchronous belt are respectively connected with the first synchronous pulley and the second synchronous pulley, and the encoder is configured to detect the rotation speed of the transmission shaft according to the rotation speed signals transmitted by the first synchronous pulley, the second synchronous pulley and the synchronous belt.

[0024] According to the above technical means, the first synchronous pulley is directly coaxially installed on the transmission shaft, and the second synchronous pulley is coaxially installed on the transmission shaft of the encoder, and the two are connected through the synchronous belt, when the transmission shaft rotates, the encoder can accurately receive the rotation speed signals transmitted by the first synchronous pulley, the second synchronous pulley and the synchronous belt, so as to realize accurate monitoring of the rotation speed of the transmission shaft, and the stability and reliability are good.

[0025] Further, the brake comprises a brake disc, a hydraulic caliper and a gas-liquid supercharging device, the brake disc is coaxially installed on the transmission shaft, the hydraulic caliper is installed on the support, the hydraulic caliper is configured to brake the rotating brake disc, and the gas-liquid supercharging device is connected with the hydraulic caliper, and the gas-liquid supercharging device is used for providing pressure to the hydraulic caliper.

[0026] According to the above technical means, the brake disc is coaxially installed on the transmission shaft, the hydraulic caliper is stably installed on the support and can brake the rotating brake disc, the gas-liquid pressure boosting device is closely connected with the hydraulic caliper, and a stable brake system is formed, so that the accurate output and adjustment of the brake force are ensured, the response speed and brake effect of the brake system are improved, and the inertia driving device has better performance and stability when simulating a real brake scene.

[0027] Further, the pressure sensor is connected with the gas-liquid pressure boosting device and used for detecting the pressure output by the gas-liquid pressure boosting device.

[0028] According to the above technical means, the pressure sensor is connected with the gas-liquid pressure boosting device, can monitor the pressure value output by the gas-liquid pressure boosting device in real time and accurately, and realizes the brake process of the brake in a real vehicle from the aspects of inertia, driving speed, temperature, pressure and torque in combination with the temperature detection device, the rotation speed detection device and the torque detection device, so that the simulation is more comprehensive and real, and the accuracy and reliability are higher, and powerful technical support is provided for the research on reducing non-tail gas emission pollution.

[0029] Further, the installation table and the upper cover are further included, the upper cover covers the installation table, and the support, the motor, the flywheel seat, the mounting seat and the encoder are covered in the upper cover and installed on the installation table.

[0030] According to the above technical means, the upper cover covers the installation table, so that a closed and protective space is formed, the interference and influence of the external environment on the internal components of the system are reduced, and the accuracy and reliability of the test are ensured.

[0031] The utility model realizes beneficial effect:

[0032] 1、The inertia driving device in the utility model is used as a power source to drive the brake to start and stop through the driving transmission shaft, and in combination with the temperature detection device, the rotation speed detection device and the torque detection device, can restore a real scene according to the inertia, driving speed, temperature and torque brake height of an automobile, to simulate the brake behavior in vehicle driving, so that the brake can be deeply tested and the research on particulate matter emission can be carried out in a laboratory environment, not only the test cost is reduced, but also the efficiency, authenticity, accuracy and reliability of the test are improved, and powerful technical support is provided for the research on reducing non-tail gas emission pollution.

[0033] 2、The real-time monitoring function based on the temperature detection device, the rotation speed detection device and the torque detection device makes researchers be able to comprehensively acquire the temperature, rotation speed and torque and other key parameters in the brake process, realizes the comprehensive, accurate and real evaluation on the pollutant emission of the brake through the analysis on these parameters. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is the whole structure schematic view of the utility model;

[0035] Figure 2 It is the structure schematic view of the utility model brake and transmission shaft connection;

[0036] Figure 3 It is the structure schematic view of the utility model temperature detection device and transmission shaft connection;

[0037] Figure 4 It is the structure schematic view of the utility model speed detection device and transmission shaft connection;

[0038] Figure 5 It is the structure schematic view of the utility model torque detection device and inertia drive device connection;

[0039] Figure 6 It is the structure schematic view of the utility model inertia drive device.

[0040] Wherein, 1 - support;11 - installation cylinder;2 - brake;21 - brake disc;22 - hydraulic caliper;23 - gas-liquid supercharging device;31 - motor;311 - output shaft;32 - flywheel disc;33 - flywheel shaft;34 - flywheel seat;35 - diaphragm coupling;4 - transmission shaft;5 - temperature detection device;51 - conductive slip ring;52 - mounting bracket;6 - speed detection device;61 - first synchronous pulley;62 - second synchronous pulley;63 - synchronous belt;64 - encoder;641 - transmission shaft;7 - torque detection device;71 - torque sensing shaft;72 - mounting seat;8 - mounting table;9 - upper cover.

[0041] The drawings are only for example description, and can not be understood as the limitation of the patent;In order to better illustrate the embodiment, some components of the drawings can be omitted, enlarged or reduced, and the size of the actual product is not represented;For those skilled in the art, it is understandable that some well-known structures and their description in the drawings can be omitted;The same or similar reference numerals correspond to the same or similar components;The position relation described in the drawings is only for example description, and can not be understood as the limitation of the patent. DETAILED DESCRIPTION

[0042] It should be noted that the embodiments in the present application and the technical features in the embodiments can be combined with each other without conflict, and the detailed description in the specific embodiments should be understood as the explanation and description of the purpose of the present application, and should not be regarded as the improper limitation of the present application.

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the specific technical scheme of the present application will be further described in detail below with reference to the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0044] In the embodiments of the present application, the terms "first", "second" are used only for descriptive purpose, and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0045] In the embodiments of the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate medium.

[0046] In the embodiments of the present application, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitation, the element defined by the sentence "including a…" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0047] In the embodiments of the present application, the words such as "exemplary" or "for example" are used to represent as an example, illustration or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words such as "exemplary" or "for example" are intended to present the relevant concept in a specific manner.

[0048] The technical scheme of the present application will be described in detail below with reference to the specific drawings.

[0049] The present embodiment relates to a tire braking simulation device, such as Figure 1 and Figure 5As shown, it comprises: a support 1 and a brake 2, the brake 2 is installed on the support 1, and the brake 2 is configured to be able to start and stop; an inertia driving device and a transmission shaft 4, the transmission shaft 4 is rotatably installed on the support 1, one end of the transmission shaft 4 is connected with the brake 2, and the other end is connected with the inertia driving device, and the inertia driving device is configured to drive the transmission shaft 4 to rotate to drive the brake 2 to act; a temperature detection device 5 connected with the transmission shaft 4 for detecting the temperature of the transmission shaft 4; a rotating speed detection device 6 connected with the transmission shaft 4 for detecting the rotating speed of the transmission shaft 4; and a torque detection device 7 connected between the inertia driving device and the transmission shaft 4 for detecting the torque output by the inertia driving device.

[0050] In the embodiment, the brake 2 is started and stopped to simulate the braking behavior in vehicle driving, so as to test the performance of the brake 2 and study the particulate matter emission. Specifically, in actual application, the support 1 provides stable support for the transmission shaft 4, the inertia driving device drives the brake 2 to start and stop by driving the transmission shaft 4, and the temperature detection device 5, the rotating speed detection device 6 and the torque detection device 7 monitor the temperature, the rotating speed and the torque output in real time when the brake 2 acts, so that researchers can comprehensively obtain the key parameters such as inertia, temperature, rotating speed and torque of the brake 2 in the braking process. Through analysis and evaluation of these parameters, the real scene can be highly restored to simulate the braking behavior in vehicle driving, so that the performance of the brake 2 can be deeply tested and the particulate matter emission can be studied in the laboratory environment, which not only reduces the test cost, but also improves the efficiency, authenticity, accuracy and reliability of the test, and provides strong technical support for reducing non-exhaust emission pollution research.

[0051] In the embodiment, the inertia driving device comprises a motor 31, an output shaft 311 of the motor 31 is connected with the transmission shaft 4 through the torque detection device 7, and the motor 31 is configured to drive the output shaft 311 to drive the torque detection device 7 to drive the transmission shaft 4 to rotate, so as to drive the brake 2 to act.

[0052] In the embodiment, the inertia driving device comprises a motor 31, an output shaft 311 of the motor 31 is connected with the transmission shaft 4 through the torque detection device 7, and the motor 31 is configured to drive the output shaft 311 to drive the torque detection device 7 to drive the transmission shaft 4 to rotate, so as to drive the brake 2 to act. Figure 1 In actual application, the motor 31 drives the output shaft 311 to drive the torque detection device 7, the torque detection device 7 monitors the torque in real time and transmits power to the transmission shaft 4, so that the transmission shaft 4 drives the brake 2 to act, thereby realizing the starting or stopping of the brake 2, and providing strong support for in-depth study of braking performance and particulate matter emission.

[0053] In this embodiment, the inertia drive device also includes a flywheel disk 32, a flywheel shaft 33, and a flywheel seat 34. The flywheel disk 32 is mounted on the flywheel shaft 33, and the flywheel shaft 33 is rotatably mounted on the flywheel seat 34. One end of the flywheel shaft 33 is connected to the output shaft 311 of the motor 31, and the other end is connected to the transmission shaft 4 through the torque detection device 7. The flywheel disk 32 is configured to store and release energy.

[0054] This implementation example Figure 1 and Figure 6 As shown, the flywheel disk 32 can store and release energy. In practical applications, the flywheel seat 34 provides stable support for the flywheel shaft 33. The motor 31 drives the output shaft 311 to drive the flywheel shaft 33 to rotate, thereby driving the flywheel disk 32 to rotate to store energy. At the same time, the flywheel shaft 33 drives the torque detection device 7 to drive the transmission shaft 4 to rotate, thereby driving the brake 2 to operate. When the motor 31 stops operating, the flywheel disk 32 releases energy and drives the transmission shaft 4 through the flywheel shaft 33 to simulate the inertia effect in real vehicle driving, which has high stability and good reliability.

[0055] In this embodiment, the inertia drive device also includes two diaphragm couplings 35, which are respectively installed at both ends of the flywheel shaft 33. One diaphragm coupling 35 is connected to the output shaft 311 of the motor 31, and the other diaphragm coupling 35 is connected to the torque detection device 7.

[0056] This implementation example Figure 1 , Figure 5 and Figure 6 As shown, in practical applications, one of the diaphragm couplings 35 is tightly connected to the output shaft 311 of the motor 31, ensuring that the motor 31 can drive the flywheel shaft 33 to rotate stably and efficiently. The other diaphragm coupling 35 is connected to the torque detection device 7, enabling the torque detection device 7 to transmit power stably and monitor the torque change between the flywheel shaft 33 and the transmission shaft 4 accurately and in real time, thereby improving the stability and efficiency of the transmission. It also makes the entire inertia drive device exhibit better performance and reliability when dealing with various complex working conditions.

[0057] In this embodiment, the torque detection device 7 includes a torque sensing shaft 71, a mounting base 72, and a torque processor. The torque sensing shaft 71 is rotatably mounted on the mounting base 72. One end of the torque sensing shaft 71 is connected to an adjacent diaphragm coupling 35, and the other end is connected to a drive shaft 4. The torque processor is communicatively connected to the torque sensing shaft 71. The torque sensing shaft 71 is used to transmit torque, and the torque processor is configured to detect the torque output by the motor 31 based on the torque signal transmitted by the torque sensing shaft 71.

[0058] This implementation example Figure 5 and Figure 6As shown, in actual application, the torque sensing shaft 71 rotates on the mounting seat 72, one end of which is connected with the diaphragm coupling 35 and the other end of which is connected with the transmission shaft 4, which is responsible for transmitting power and collecting torque signals in real time; the torque processor communicates with the torque sensing shaft, can accurately receive and quickly and accurately analyze and process the torque signals transmitted by the torque sensing shaft, so as to measure the torque value output by the motor in real time, and has good stability and reliability.

[0059] In the embodiment, the temperature detection device 5 includes a conductive slip ring 51, a mounting frame 52 and a temperature processor, the conductive slip ring 51 is sleeved on the transmission shaft 4 and is installed on the support 1 through the mounting frame 52, the temperature processor is in communication connection with the conductive slip ring 51, the conductive slip ring 51 is used for transmitting the temperature signal of the transmission shaft 4, and the temperature processor is configured to detect the temperature of the transmission shaft 4 according to the temperature signal transmitted by the conductive slip ring 51.

[0060] In the embodiment, the temperature detection device 5 includes a conductive slip ring 51, a mounting frame 52 and a temperature processor, the conductive slip ring 51 is sleeved on the transmission shaft 4 and is installed on the support 1 through the mounting frame 52, the temperature processor is in communication connection with the conductive slip ring 51, the conductive slip ring 51 is used for transmitting the temperature signal of the transmission shaft 4, and the temperature processor is configured to detect the temperature of the transmission shaft 4 according to the temperature signal transmitted by the conductive slip ring 51. Figure 3 As shown, in actual application, the conductive slip ring 51 is sleeved on the transmission shaft 4 and is fixed to the support 1 through the mounting frame 52, can collect temperature signals in real time with high sensitivity; the temperature processor is in communication connection with the conductive slip ring 51, can accurately receive and quickly and accurately analyze and process the temperature signals, so as to detect the temperature state of the transmission shaft 4 in real time, and has good stability and reliability.

[0061] In the embodiment, the rotational speed detection device 6 includes a first synchronous pulley 61, a second synchronous pulley 62, a synchronous belt 63 and an encoder 64, the first synchronous pulley 61 is coaxially installed on the transmission shaft 4, the second synchronous pulley 62 is coaxially installed on a transmission shaft 641 of the encoder 64, the two ends of the synchronous belt 63 are respectively connected with the first synchronous pulley 61 and the second synchronous pulley 62, and the encoder 64 is configured to detect the rotational speed of the transmission shaft 4 according to the rotational speed signals transmitted by the first synchronous pulley 61, the second synchronous pulley 62 and the synchronous belt 63.

[0062] In the embodiment, the rotational speed detection device 6 includes a first synchronous pulley 61, a second synchronous pulley 62, a synchronous belt 63 and an encoder 64, the first synchronous pulley 61 is coaxially installed on the transmission shaft 4, the second synchronous pulley 62 is coaxially installed on a transmission shaft 641 of the encoder 64, the two ends of the synchronous belt 63 are respectively connected with the first synchronous pulley 61 and the second synchronous pulley 62, and the encoder 64 is configured to detect the rotational speed of the transmission shaft 4 according to the rotational speed signals transmitted by the first synchronous pulley 61, the second synchronous pulley 62 and the synchronous belt 63. Figure 4 As shown, in actual application, the first synchronous pulley 61 is directly coaxially installed on the transmission shaft 4, and the second synchronous pulley 62 is coaxially installed on the transmission shaft 4 of the encoder 64, and the two are connected through the synchronous belt 63, when the transmission shaft 4 rotates, the encoder 64 can accurately receive the rotational speed signals transmitted by the first synchronous pulley 61, the second synchronous pulley 62 and the synchronous belt 63, so as to realize accurate monitoring of the rotational speed of the transmission shaft 4, and has good stability and reliability.

[0063] In the embodiment, the brake 2 comprises a brake disc 21, a hydraulic caliper 22 and a gas-liquid pressure boosting device 23, the brake disc 21 is coaxially installed on the transmission shaft 4, the hydraulic caliper 22 is installed on the support 1, the hydraulic caliper 22 is configured to brake the rotating brake disc 21, the gas-liquid pressure boosting device 23 is connected with the hydraulic caliper 22, and the gas-liquid pressure boosting device 23 is used to provide pressure for the hydraulic caliper 22.

[0064] In the embodiment, the brake 2 comprises a brake disc 21, a hydraulic caliper 22 and a gas-liquid pressure boosting device 23, the brake disc 21 is coaxially installed on the transmission shaft 4, the hydraulic caliper 22 is installed on the support 1, the hydraulic caliper 22 is configured to brake the rotating brake disc 21, the gas-liquid pressure boosting device 23 is connected with the hydraulic caliper 22, and the gas-liquid pressure boosting device 23 is used to provide pressure for the hydraulic caliper 22. Figure 2 As shown in the actual application, the brake disc 21 is coaxially installed on the transmission shaft 4, the hydraulic caliper 22 is stably installed on the support 1 through the mounting cylinder 11 and can brake the rotating brake disc 21, the gas-liquid pressure boosting device 23 is connected with the hydraulic caliper 22 and provides a stable and controllable pressure source for the hydraulic caliper 22, forming a stable braking system, ensuring accurate output and adjustment of braking force, improving response speed and braking effect of the braking system, and also making the entire inertia driving device perform better performance and stability when simulating a real braking scene.

[0065] In the embodiment, a pressure sensor is further included, the pressure sensor is connected with the gas-liquid pressure boosting device 23 and is used to detect the pressure output by the gas-liquid pressure boosting device 23; in the actual application, the pressure sensor is connected with the gas-liquid pressure boosting device 23 and can monitor the pressure value output by the gas-liquid pressure boosting device 23 in real time and accurately, so as to realize simulation of the braking process of the brake 2 on the real vehicle from the aspects of inertia, driving speed, temperature, pressure and torque by combining the temperature detection device 5, the rotating speed detection device 6 and the torque detection device 7, so that the simulation is more comprehensive and real, the accuracy and reliability are higher, and powerful technical support is provided for research on reduction of non-exhaust emission pollution.

[0066] In the embodiment, a mounting table 8 and an upper cover 9 are further included, the upper cover 9 covers the mounting table 8, and the support 1, the motor 31, the flywheel seat 34, the mounting seat 72 and the encoder 64 are covered in the upper cover 9 and installed on the mounting table 8.

[0067] In the embodiment, the brake 2 comprises a brake disc 21, a hydraulic caliper 22 and a gas-liquid pressure boosting device 23, the brake disc 21 is coaxially installed on the transmission shaft 4, the hydraulic caliper 22 is installed on the support 1, the hydraulic caliper 22 is configured to brake the rotating brake disc 21, the gas-liquid pressure boosting device 23 is connected with the hydraulic caliper 22, and the gas-liquid pressure boosting device 23 is used to provide pressure for the hydraulic caliper 22. Figure 1 As shown in the actual application, the brake disc 21 is coaxially installed on the transmission shaft 4, the hydraulic caliper 22 is stably installed on the support 1 through the mounting cylinder 11 and can brake the rotating brake disc 21, the gas-liquid pressure boosting device 23 is connected with the hydraulic caliper 22 and provides a stable and controllable pressure source for the hydraulic caliper 22, forming a stable braking system, ensuring accurate output and adjustment of braking force, improving response speed and braking effect of the braking system, and also making the entire inertia driving device perform better performance and stability when simulating a real braking scene.

[0068] The above sequence numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments. The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings of the present application, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A tire braking simulation apparatus characterized by comprising: The application relates to a brake device, which comprises a support (1) and a brake (2) installed on the support (1), the brake (2) being configured to be capable of starting and stopping; an inertia driving device and a transmission shaft (4) rotatably installed on the support (1), one end of the transmission shaft (4) being connected with the brake (2) and the other end being connected with the inertia driving device, the inertia driving device being configured to drive the transmission shaft (4) to rotate so as to drive the brake (2) to act; a temperature detection device (5) connected with the transmission shaft (4) and used for detecting the temperature of the transmission shaft (4); a rotating speed detection device (6) connected with the transmission shaft (4) and used for detecting the rotating speed of the transmission shaft (4); and a torque detection device (7) connected between the inertia driving device and the transmission shaft (4) and used for detecting the torque output by the inertia driving device. The inertia driving device comprises a motor (31), an output shaft (311) of the motor (31) being connected with the transmission shaft (4) through the torque detection device (7), and the motor (31) being configured to drive the output shaft (311) to drive the torque detection device (7) to drive the transmission shaft (4) to rotate so as to drive the brake (2) to act. The inertia driving device further comprises a flywheel disc (32), a flywheel shaft (33) and a flywheel seat (34), the flywheel disc (32) being installed on the flywheel shaft (33), the flywheel shaft (33) being rotatably installed on the flywheel seat (34), one end of the flywheel shaft (33) being connected with the output shaft (311) of the motor (31) and the other end being connected with the transmission shaft (4) through the torque detection device (7), and the flywheel disc (32) being configured to store and release energy. The inertia driving device further comprises two diaphragm couplings (35), one of the diaphragm couplings (35) being connected with the output shaft (311) of the motor (31) and the other diaphragm coupling (35) being connected with the torque detection device (7). The torque detection device (7) comprises a torque sensing shaft (71), a mounting base (72) and a torque processor, the torque sensing shaft (71) being rotatably installed on the mounting base (72), one end of the torque sensing shaft (71) being connected with the adjacent diaphragm coupling (35) and the other end being connected with the transmission shaft (4), the torque processor being communicatively connected with the torque sensing shaft (71), the torque sensing shaft (71) being used for transmitting torque, and the torque processor being configured to detect the torque output by the motor (31) according to the torque signal transmitted by the torque sensing shaft (71). ​ 2. The tire braking simulation apparatus according to claim 1, characterized by, ​ 3. The tire braking simulation apparatus according to claim 2, characterized by, ​ 4. The tire braking simulation apparatus according to claim 3, characterized by ​ 5. The tire braking simulation apparatus according to claim 3, wherein ​ 6. The tire braking simulation apparatus according to claim 1, wherein The temperature detection device (5) comprises a conductive slip ring (51), a mounting frame (52) and a temperature processor, the conductive slip ring (51) is sleeved on the transmission shaft (4) and is mounted on the support (1) through the mounting frame (52), the temperature processor is in communication connection with the conductive slip ring (51), the conductive slip ring (51) is used for transmitting the temperature signal of the transmission shaft (4), and the temperature processor is configured to detect the temperature of the transmission shaft (4) according to the temperature signal transmitted by the conductive slip ring (51).

7. The tire braking simulation apparatus according to claim 3, wherein The rotation speed detection device (6) comprises a first synchronous pulley (61), a second synchronous pulley (62), a synchronous belt (63) and an encoder (64), the first synchronous pulley (61) is coaxially installed on the transmission shaft (4), the second synchronous pulley (62) is coaxially installed on a transmission shaft (641) of the encoder (64), two ends of the synchronous belt (63) are respectively connected with the first synchronous pulley (61) and the second synchronous pulley (62), and the encoder (64) is configured to detect the rotation speed of the transmission shaft (4) according to the rotation speed signal transmitted by the first synchronous pulley (61), the second synchronous pulley (62) and the synchronous belt (63).

8. The tire braking simulation apparatus according to claim 1, wherein, The brake (2) comprises a brake disc (21), a hydraulic caliper (22) and a gas-liquid supercharging device (23), the brake disc (21) is coaxially installed on the transmission shaft (4), the hydraulic caliper (22) is installed on the support (1), the hydraulic caliper (22) is configured to brake the rotating brake disc (21), and the gas-liquid supercharging device (23) is connected with the hydraulic caliper (22) and used for providing pressure for the hydraulic caliper (22).

9. The tire braking simulation apparatus according to claim 8, wherein, The pressure sensor is further connected with the gas-liquid supercharging device (23) and used for detecting the pressure output by the gas-liquid supercharging device (23).

10. The tire braking simulation apparatus according to claim 7, wherein The installation table (8) and the upper cover (9) are further provided, the upper cover (9) covers the installation table (8), and the support (1), the motor (31), the flywheel seat (34), the mounting seat (72) and the encoder (64) are covered in the upper cover (9) and installed on the installation table (8).

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