Track traffic vehicle sliding detection system and auxiliary detection device

Abstract

The utility model discloses a rail transit vehicle sliding detection system and an auxiliary detection device. The auxiliary detection device is applied to sliding detection of a rail transit vehicle and comprises a rotatable rotation simulator, a driving assembly and a machine shell. The driving assembly is connected with the rotation simulator and used for driving the rotation simulator to rotate. The rotation simulator and the driving assembly are both arranged in the machine shell. One side of the housing is provided with an operation port which enables the rotation simulator and the to-be-tested shaft end speed sensor to be aligned with each other in the same space. The auxiliary detection device can be combined with the rail transit vehicle in a parking state to test the sliding detection system, and is used for testing whether the sliding detection system operates normally or not in advance, and eliminating errors caused by the problems of the sliding detection system to the sliding test of the rail transit vehicle. The auxiliary detection device is simple in structure, can be used when the rail transit vehicle stops, and is safe and convenient.

Description

Technical Field

[0001] The present application relates to the field of rail transit technology, and in particular to an auxiliary detection device, and also to a rail transit vehicle skidding detection system, including the aforementioned auxiliary detection device. Background Art

[0002] Rail transit vehicles are often required to undergo static tests before leaving the factory. Static tests include sliding tests to verify the anti-skid performance of rail transit vehicles.

[0003] At present, rail transit vehicles have a relatively mature and complete anti-skid control system. The anti-skid control system has a skid detection function and an anti-skid control function; the skid detection function of the anti-skid control system is reflected in that the anti-skid control system can obtain the speed signals of the axles and wheels of the rail transit vehicle, and obtain the speed parameters such as the deceleration of the axle, the speed difference between the single-axle speed and the reference speed through internal logic calculation to analyze and judge whether the rail transit vehicle is skidding; the anti-skid control function of the anti-skid control system is reflected in that when the rail transit vehicle skids, the anti-skid control system sends instructions to the anti-skid valves connected to the axles and wheels to make the skidding axle stick quickly, thereby eliminating the skidding phenomenon of the rail transit vehicle.

[0004] When verifying the anti-skid performance of rail transit vehicles, the normal operation of the anti-skid control system itself is a necessary prerequisite for the smooth implementation of this test operation. For the skid detection function of the anti-skid control system, it not only depends on its internal logic program, but also on several speed sensors used to obtain the speed signals of the axles and wheels. The latter are prone to various problems during use, affecting the skid detection results of the anti-skid control system. However, there is no dedicated product in the prior art to verify the skid detection function of the anti-skid control system. Utility Model Content

[0005] The purpose of this application is to provide an auxiliary detection device that can be used to test the detection function of products such as anti-skid control systems that have a skid detection function, so as to prepare for the subsequent use of the aforementioned products to verify the anti-skid performance of rail transit vehicles. Another purpose of this application is to provide a rail transit vehicle skid detection system, including the aforementioned auxiliary detection device.

[0006] To achieve the above objectives, the present application provides an auxiliary detection device, which is applied to the sliding detection of rail transit vehicles, comprising:

[0007] A rotatable spin simulator;

[0008] A driving assembly connected to the rotation simulator and used to drive the rotation simulator;

[0009] The housing; the rotation simulator and the drive assembly are both arranged in the housing; an operation port is arranged on one side of the housing so that the rotation simulator and the shaft end speed sensor to be measured can be aligned with each other in the same space.

[0010] In some embodiments, the drive assembly includes a motor having an output shaft; the rotation simulator includes a shaft end mounting block detachably mounted on the output shaft, and the shaft end mounting block protrudes outwardly from the output shaft along all radial directions of the output shaft.

[0011] In some embodiments, the shaft end mounting block is specifically a gear; the gear is sleeved on the shaft end of the output shaft, and the gear and the output shaft are tightly connected.

[0012] In some embodiments, a battery compartment and a battery in the battery compartment are provided in the housing; the battery and the motor are electrically connected; a hand-held portion for an operator to hold and an operating button for starting and stopping the motor are provided outside the housing.

[0013] In some embodiments, the driving assembly includes a manual operating handle and a transmission mechanism; the manual operating handle is connected to the rotation simulator through the transmission mechanism to realize manual manipulation of the rotation simulator.

[0014] In some embodiments, a monitoring sensor for monitoring the output speed of the drive component is also provided in the housing; the monitoring sensor is coupled to the host computer of the shaft end speed sensor to be measured so that the host computer can compare the speed signals collected by the monitoring sensor and the shaft end speed sensor to be measured.

[0015] In some embodiments, the housing is provided with an observation window; the observation window is aligned with the rotation simulator.

[0016] In some embodiments, a testing station for mounting a shaft end speed sensor to be tested is provided in the operation port; the testing station and the installation position of the rotation simulator are relatively fixed.

[0017] The present application also provides a rail transit vehicle skidding detection system, comprising a skidding detection device for detecting whether the rail transit vehicle is skidding and the aforementioned auxiliary detection device; the skidding detection device comprises:

[0018] Several axle end speed sensors to be measured; all axle end speed sensors to be measured can be installed on multiple axles of the rail transit vehicle respectively to obtain the speed of each axle;

[0019] Host computer; the host computer is coupled to all shaft end speed sensors to be tested, and is used to analyze the sliding state of the rail transit vehicle according to the detection signals of all shaft end speed sensors to be tested.

[0020] With respect to the above background technology, the auxiliary detection device provided in this application includes:

[0021] A rotatable spin simulator;

[0022] A driving assembly connected to the rotation simulator and used to drive the rotation simulator;

[0023] The housing; the rotation simulator and the drive assembly are both arranged in the housing; an operation port is arranged on one side of the housing so that the rotation simulator and the shaft end speed sensor to be measured can be aligned with each other in the same space.

[0024] The auxiliary detection device provided in this application can be applied to the coasting detection of rail transit vehicles. Specifically, before using the coasting detection system to test the coasting of the rail transit vehicle, the coasting detection system can be tested in combination with the rail transit vehicle in the parked state. Simply put, the coasting detection system is a test product used to test whether the rail transit vehicle is coasting. The purpose of the auxiliary detection device provided in this application is to test whether the aforementioned test product is operating normally, so as to avoid interference with the coasting test results of the rail transit vehicle due to problems with the coasting detection system itself.

[0025] Since the auxiliary detection device provided in the present application can be used in conjunction with a rail transit vehicle in a parked state, in addition to testing the skid detection system, it can also be used to preliminarily test the anti-skid control function of products such as anti-skid control systems that have both skid detection and anti-skid control functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0027] Figure 1 A schematic diagram of the structure of the auxiliary detection device provided in an embodiment of the present application.

[0028] Among them, 1-rotation simulator, 2-drive assembly, 21-output shaft, 22-motor housing, 3-housing, 31-operation port, 32-battery compartment, 33-handheld part, 34-operation button, 4-observation window. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of the auxiliary detection device provided in an embodiment of the present application.

[0032] The present application provides an auxiliary detection device, which is applied to the sliding detection of rail transit vehicles, including a housing, a rotatable rotation simulator 1 and a drive assembly 2; the rotation simulator 1 and the drive assembly 2 are both arranged in the housing; an operation port 31 is provided on one side of the housing, and the rotation simulator 1 and the shaft end speed sensor to be measured are aligned with each other in the same space through the operation port 31. Among them, the rotation simulator 1 and the shaft end speed sensor to be measured are aligned with each other in the same space through the operation port 31, which means that the spaces where the two are located are interconnected through the operation port 31, and the two are aligned with each other in the interconnected spaces, which can make the rotation simulator 1 temporarily serve as the detection object of the shaft end speed sensor to be measured.

[0033] In this embodiment, the driving component 2 controls the rotation simulator 1 to rotate, and the rotation simulator 1 can be aligned with the shaft end speed sensor to be tested in the same space to provide a speed signal to the shaft end speed sensor to be tested. In this way, the rotation simulator 1 can provide a speed signal to the shaft end speed sensor to be tested like axles, wheels and other parts, so that the sliding detection system where the shaft end speed sensor to be tested is located can be operated, thereby testing whether the sliding detection system is operating normally.

[0034] If the auxiliary detection device test concludes that the coasting detection system is operating normally, the operator can apply the aforementioned coasting detection system to the coasting detection test of the rail transit vehicle; conversely, if the auxiliary detection device test concludes that the coasting detection system is operating abnormally, the operator needs to repair the coasting detection system and its shaft end speed sensor to be tested, find out and repair the fault point where the coasting detection system cannot operate normally, and then use the coasting detection system to perform a coasting detection test on the rail transit vehicle until the auxiliary detection device tests that the coasting detection system can operate normally. It can be seen that the coasting detection system and its shaft end speed sensor to be tested can be used to perform a coasting test on a rail transit vehicle, and the auxiliary detection device provided in this application can test the coasting detection system, laying a solid foundation for the subsequent use of the coasting detection system to perform a coasting test on a rail transit vehicle.

[0035] Generally, a rail transit vehicle has more than two axles, each axle can be provided with two wheels, and each wheel corresponds to an axle end speed sensor. Taking a rail transit vehicle with two axles and four wheels as an example, for the four wheels of the rail transit vehicle, the skid detection system is provided with four axle end speed sensors, and the four axle end speed sensors correspond to the four wheels one by one.

[0036] When the auxiliary detection device provided in the present application is used to test the skidding detection system, the rail transit vehicle is in a parked state, and all axles and all wheels are stationary. The operator can move the auxiliary detection device to the vicinity of one of the axles, and remove an axle end speed sensor from the axle, and the axle end speed sensor is the axle end speed sensor to be tested; then, adjust the relative position relationship between the axle end speed sensor to be tested and the auxiliary detection device, so that the axle end speed sensor to be tested is aligned with the rotation simulator 1; then, use the drive assembly 2 to drive the rotation simulator 1 to rotate, so that the axle end speed sensor to be tested detects the rotation simulator 1, or in other words, the rotation simulator 1 inputs a speed signal to the axle end speed sensor to be tested. After completing the above operations, the operator can wait for the skidding detection system to run automatically until the skidding detection system outputs the detection results.

[0037] In the above test operation, one shaft end speed sensor to be tested is aligned with the rotation simulator 1, and the rotation speed signal of the rotation simulator 1 can be collected. The other three shaft end speed sensors are still installed on the rail transit vehicle, and the rotation speed signals of the corresponding wheels will not be collected. If the detection data obtained by the shaft end speed sensor to be tested and the three shaft end speed sensors are regarded as the first detection data, and the detection data obtained by the four shaft end speed sensors when the rail transit vehicle is sliding is regarded as the second detection data, since the first detection data and the second detection data have common characteristics, the sliding detection system should be able to draw a sliding conclusion based on any one of the first detection data and the second detection data. It can be seen that the auxiliary detection device can work with the rail transit vehicle to provide the sliding detection system with a set of simulation signals that can simulate the sliding of the rail transit vehicle. Based on the simulation signal, if the sliding detection system can draw a conclusion of sliding, it proves that the sliding detection system is operating normally. Otherwise, it proves that the sliding detection system is operating abnormally.

[0038] In the above test operation, an auxiliary detection device can be used to cooperate with a shaft end speed sensor for testing, while maintaining the original operating status of the remaining three shaft end speed sensors, so as to provide an analog signal for the slip detection system; two auxiliary detection devices can also be used to cooperate with two shaft end speed sensors for testing, while maintaining the original operating status of the remaining two shaft end speed sensors, so as to provide an analog signal for the slip detection system; even four auxiliary detection devices can be used to cooperate with four shaft end speed sensors for testing, so that the four auxiliary detection devices provide different speed signals to their corresponding shaft end speed sensors, so as to provide an analog signal for the slip detection system.

[0039] In this embodiment, the driving component 2 can be a self-powered driving device, or a non-automatic device that needs to be driven manually.

[0040] In this embodiment, the shaft end speed sensor removed from the axle is regarded as the shaft end speed sensor to be measured. When adjusting the relative positions of the shaft end speed sensor to be measured and the rotation simulator 1, the shaft end speed sensor to be measured can be installed outside the housing 3, and the shaft end speed sensor to be measured and the rotation simulator 1 can be aligned with each other in the same space by using the operation port 31, or the shaft end speed sensor to be measured can be installed inside the housing 3, for example, the shaft end speed sensor to be measured is placed inside the housing 3 through the operation port 31, and the shaft end speed sensor to be measured and the rotation simulator 1 are aligned with each other in the housing 3.

[0041] In summary, the auxiliary detection device provided in the present application can be used to test the sliding detection system in combination with a rail transit vehicle in a parked state to test whether the sliding detection system can operate normally, thereby laying a solid foundation for the subsequent use of the sliding detection system to conduct sliding tests on rail transit vehicles.

[0042] In addition to testing the skid detection system, since the auxiliary detection device can be used with a rail transit vehicle in a parked state, it can also be used to preliminarily test the anti-skid control function of products such as anti-skid control systems that have both skid detection and anti-skid control functions. For example, when the auxiliary detection device and the rail transit vehicle jointly provide a set of simulation signals that can simulate the skidding of the rail transit vehicle to the anti-skid control system, if the anti-skid control function of the anti-skid control system operates normally, the anti-skid control system should be able to regulate the rotation state of the axle of the rail transit vehicle. For example, the anti-skid control system makes the axle originally corresponding to the axle end speed sensor to be tested in a sticking state. In other words, the operator can determine whether the anti-skid control function of the anti-skid control system is normal by checking that the axle originally corresponding to the axle end speed sensor to be tested is in a sticking state.

[0043] The auxiliary detection device provided in the present application is further described below in conjunction with the accompanying drawings and implementation examples.

[0044] In some embodiments, the drive assembly 2 includes a motor, and the rotation simulator 1 includes a shaft end mounting block; the shaft end mounting block is detachably mounted on the output shaft 21 of the motor, and the shaft end mounting block protrudes outwardly toward the output shaft 21 in all radial directions of the output shaft 21.

[0045] For reference Figure 1 The left end of the casing 3 is provided with an operating port 31; the motor is arranged in the casing 3, and the motor includes a motor casing 322 and an output shaft 21, the motor casing 322 is fixed in the casing 3, and the output shaft 21 is along Figure 1 The right end of the output shaft 21 is arranged in the motor housing 322 , the left end of the output shaft 21 faces the operation port 31 and is aligned with the operation port 31 , and the shaft end mounting block is arranged at the left end of the output shaft 21 .

[0046] When the auxiliary detection device provided by the present application is used to test the sliding detection system, the shaft end mounting block and the shaft end speed sensor to be tested are aligned with each other in the same space. If the shaft end mounting block and the output shaft 21 are regarded as a rod assembly, since the shaft end mounting block protrudes in all radial directions of the output shaft 21, the right end of the rod assembly is thicker than the left end, which is conducive to aligning the shaft end speed sensor to be tested and detecting the rod assembly.

[0047] Usually, the shaft end mounting block can be set as a gear. The gear sleeve is arranged on the shaft end of the output shaft 21, and can be locked with the output shaft 21 by threads, pins, etc., and can be tightly connected with the output shaft 21. The material of the gear can be 45# steel; the number of teeth of the gear is 30, the gear tooth shape is close to a rectangle, the gear tooth top width and the tooth top gap width are equal, about 2mm, and the gear tooth root depth is 2~3mm.

[0048] For reference Figure 1 In some embodiments, a battery compartment 32 and a battery are provided inside the housing 3, and a handheld part 33 and an operating button 34 are provided outside the housing 3; the battery is provided inside the battery compartment 32 and connected to the motor to supply power to the motor; the handheld part 33 is provided outside the housing 3, and an operator can take and move the entire auxiliary detection device through the handheld part 33; the operating button 34 is provided outside the housing 3 and connected to the motor to operate the motor to start and stop. It can be seen that in this embodiment, the auxiliary detection device is a handheld device, and the driving component 2 is a self-powered driving device.

[0049] In the above embodiment, the battery can be specifically configured as 4 1.5V rechargeable batteries, which are connected in parallel in pairs in the battery compartment 32 and equipped with a charger. When the above battery is used to power the motor, the rotation speed of the shaft end mounting block, such as the gear, can reach 15-30r / s.

[0050] As for the remaining parts of the auxiliary detection device, they can be designed for the purpose of convenience of use and lightweight, for example, the corners and edges of the hand-held part 33 are polished and anti-slip treated to control the entire auxiliary detection device within 1000g.

[0051] When it is necessary to use the auxiliary detection device provided in the present application to test the sliding detection system, first, the operator carries the auxiliary detection device through the hand-held part 33, moves the auxiliary detection device to the vicinity of one of the axles of the rail transit vehicle, removes the shaft end speed sensor on the axle and adjusts the position of the shaft end speed sensor so that the shaft end speed sensor is aligned with the shaft end mounting block, thereby adjusting the detection object of the shaft end speed sensor from the wheel to the shaft end mounting block; then, start the sliding detection system and all its shaft end speed sensors, and enable the sliding detection system to obtain the rotational speed signal of the shaft end mounting block and the rotational speed signal of the remaining wheels, so as to simulate the sliding motion of the rail transit vehicle using the shaft end mounting block and the remaining wheels; finally, the operator determines whether the sliding detection system is operating normally based on the detection results of the sliding detection system.

[0052] As mentioned above, in the auxiliary detection device provided in the present application, the driving component 2 can be a self-powered driving device or a non-automatic device that needs to be manually driven. For the latter, for example, the driving component 2 may include a manual operating handle and a transmission mechanism; the manual operating handle and the rotation simulator 1 are respectively arranged at both ends of the transmission mechanism, specifically, the manual operating handle is arranged at the input end of the transmission mechanism, and the rotation simulator 1 is arranged at the output end of the transmission mechanism. The operator manipulates the manual operating handle to move, and the manual operating handle drives the rotation simulator 1 to rotate through the transmission mechanism.

[0053] In some embodiments, the auxiliary detection device provided in the present application also includes a monitoring sensor; the monitoring sensor is arranged in the housing 3, and is used to monitor the output speed of the drive component 2. For example, the drive component 2 includes a motor, and the monitoring sensor can be connected to the output shaft 21 of the motor, and is used to detect the output speed of the output shaft 21; the monitoring sensor is coupled to the upper computer of the shaft end speed sensor to be measured, and the speed signal obtained by the monitoring sensor and the speed signal obtained by the shaft end speed sensor to be measured can be transmitted to the upper computer for the upper computer to compare the two speed signals.

[0054] In the above embodiment, the speed signal obtained by the monitoring sensor is the output speed of the output shaft 21, and the speed signal obtained by the shaft end speed sensor to be tested is the speed of the rotation simulator 1. Under normal circumstances, the two speed signals are the same, and the test conclusion of the slide detection system by the auxiliary detection device is credible. However, if the two speed signals are different, it means that there is a fault in the auxiliary detection device itself, and this fault may affect the test conclusion of the slide detection system by the auxiliary detection device. In order to ensure the credibility of the test conclusion of the slide detection system, the operator needs to eliminate this fault before using the auxiliary detection device provided by this application to test the slide detection system.

[0055] For reference Figure 1 In some embodiments, the housing 3 is provided with an observation window 4; the observation window 4 is aligned with the rotation simulator 1, and the operator can observe the motion state of the rotation simulator 1 through the observation window 4, and eliminate the test error caused by the auxiliary detection device itself due to failure or improper use as much as possible. In this embodiment, the observation window 4 can be an unobstructed opening, for example, the side of the housing 3 is provided with an opening, and the opening is aligned with the rotation simulator 1, and the operator can observe the motion state of the rotation simulator 1 in the housing 3 from the aforementioned opening; the observation window 4 can also be a closed window that can transmit light, for example, the side of the housing 3 is provided with an opening and a transparent glass installed in the opening, and the operator can observe the motion state of the rotation simulator 1 in the housing 3 through the transparent glass.

[0056] In addition, in some embodiments, a station to be tested and a mounting position are provided in the operation port 31; the station to be tested and the mounting position are relatively fixed, the former is used to clamp the shaft end speed sensor to be tested, and the latter is used to clamp the rotation simulator 1. The station to be tested and the mounting position are used to respectively install the shaft end speed sensor to be tested and the rotation simulator 1, which is conducive to ensuring the detection accuracy of the shaft end speed sensor to be tested on the rotation simulator 1, reducing the detection error, and can also unify the use standards of the auxiliary detection device and reduce the difficulty of operating the auxiliary detection device.

[0057] On the basis of the various embodiments provided above, the present application further provides a rail transit vehicle skidding detection system, including a skidding detection device for detecting whether the rail transit vehicle is skidding, and of course also including an auxiliary detection device.

[0058] In the above embodiment, the sliding detection device may include a host computer and a plurality of axle end speed sensors; all axle end speed sensors are respectively installed on multiple axles of the rail transit vehicle for obtaining the speed of each axle; the host computer is coupled to all axle end speed sensors to be tested, for analyzing the sliding state of the rail transit vehicle according to the detection signals of all axle end speed sensors to be tested.

[0059] The skidding detection device is arranged on the rail transit vehicle. When the rail transit vehicle is running, the skidding detection device can monitor the running status of the rail transit vehicle in real time and determine whether the rail transit vehicle is skidding. When it is necessary to use the auxiliary detection device provided in the present application to test the skidding detection system, some or all of the shaft end speed sensors can be removed from the rail transit vehicle, and these removed shaft end speed sensors can be used as shaft end speed sensors to be tested, and one or more auxiliary detection devices can be used to perform product testing to determine whether the skidding detection device is operating. When the auxiliary detection device is used to perform product testing on the skidding detection device, in terms of the function of the device, the shaft end speed sensor to be tested is a component with a test function, and the rotation simulator 1 of the auxiliary detection device is the test object, but in terms of the operation logic of the product testing operation, the skidding detection device and its shaft end speed sensor to be tested are the test objects of this test operation.

[0060] In summary, the rail transit vehicle coasting detection system and its auxiliary detection device provided in the present application can be applied to the coasting detection of rail transit vehicles, which can meet the static test requirements of rail vehicles before leaving the factory, is conducive to improving the test safety, and is conducive to ensuring the product performance of rail vehicles.

[0061] The rail transit vehicle skidding detection system and auxiliary detection device provided by the present application are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. An auxiliary detection device, applied to the sliding detection of rail transit vehicles, characterized in that: include: A rotatable rotation simulator (1); A driving component (2) connected to the rotation simulator (1) and used to drive the rotation simulator (1); A casing (3); the rotation simulator (1) and the drive assembly (2) are both arranged in the casing (3); and an operating port (31) is provided on one side of the casing (3) for enabling the rotation simulator (1) and the shaft end speed sensor to be measured to be aligned with each other in the same space.

2. The auxiliary detection device according to claim 1, characterized in that: The drive assembly (2) comprises a motor having an output shaft (21); the rotation simulator (1) comprises a shaft end mounting block detachably mounted on the output shaft (21), the shaft end mounting block protruding outwardly from the output shaft (21) along radial directions of the output shaft (21).

3. The auxiliary detection device according to claim 2, characterized in that: The shaft end mounting block is specifically a gear; the gear is sleeved on the shaft end of the output shaft (21), and the gear and the output shaft (21) are tightly connected.

4. The auxiliary detection device according to claim 2, characterized in that: A battery compartment (32) and a battery disposed in the battery compartment (32) are disposed inside the housing (3); the battery and the motor are electrically connected; and a hand-held portion (33) for an operator to hold and an operating button (34) for controlling the start and stop of the motor are disposed outside the housing (3).

5. The auxiliary detection device according to claim 1, characterized in that: The driving assembly (2) comprises a manual operating handle and a transmission mechanism; the manual operating handle is connected to the rotation simulator (1) via the transmission mechanism to achieve manual manipulation of the rotation simulator (1) to rotate.

6. The auxiliary detection device according to claim 1, characterized in that: A monitoring sensor for monitoring the output rotational speed of the drive assembly (2) is also provided in the housing (3); the monitoring sensor is coupled to a host computer of the shaft end speed sensor to be measured, so that the host computer can compare the rotational speed signals collected by the monitoring sensor and the shaft end speed sensor to be measured.

7. The auxiliary detection device according to any one of claims 1 to 6, characterized in that: The housing (3) is provided with an observation window (4); the observation window (4) is aligned with the rotation simulator (1).

8. The auxiliary detection device according to any one of claims 1 to 6, characterized in that: A testing station for mounting a shaft end speed sensor to be tested is provided in the operation port (31); the testing station and the installation position of the rotation simulator (1) are relatively fixed.

9. A rail transit vehicle skidding detection system, characterized in that: It comprises a sliding detection device for detecting whether the rail transit vehicle is sliding and an auxiliary detection device as claimed in claim 8; The slide detection device comprises: A plurality of shaft end speed sensors to be measured; all of the shaft end speed sensors to be measured can be installed on multiple axles of a rail transit vehicle respectively to obtain the speed of each axle; The host computer is coupled to all the shaft end speed sensors to be tested, and is used to analyze the sliding state of the rail transit vehicle according to the detection signals of all the shaft end speed sensors to be tested.

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