Brake simulation test system

Abstract

The utility model belongs to the field of brake test, and particularly relates to a brake simulation test system. Comprising a test track which is used for a test vehicle to move; the test vehicle is arranged on the test track; the sandstone flying module is arranged on the side surface of the test track, and the sandstone flying module is used for spraying sandstone to the test track; and the control module is in signal connection with the sandstone flying module and the test vehicle. The utility model provides a brake simulation test system, and aims to solve the problem that a test system in the prior art cannot simulate the brake state of a train when gravel exists on a track.

Description

Technical Field

[0001] The utility model belongs to the field of brake testing, and in particular relates to a brake simulation test system. Background Art

[0002] Braking control is crucial for trains. Braking control ensures precise stopping under varying road conditions and prevents long-distance sliding. A braking simulation test system is used to test the effectiveness of a train's braking control under various road conditions. Conventional braking simulation test systems typically consist of tracks and a test vehicle equipped with a braking control system. The test vehicle can move along the track and brake under various operating conditions to determine the effectiveness of the braking control system under these conditions.

[0003] Conventional brake simulation test systems can simulate a train's braking state under various operating conditions, such as when the train is unloaded, loaded, or experiencing a train failure. However, existing technologies often encounter gravel on the track, which can significantly affect the train's braking performance. Conventional brake simulation test systems are unable to simulate the train's braking control state under gravel, thus presenting deficiencies. Utility Model Content

[0004] The utility model provides a braking simulation test system, which aims to solve the problem that the test system in the prior art cannot simulate the braking state of a train when gravel exists on the track.

[0005] In order to achieve the above object, the utility model provides a braking simulation test system, comprising

[0006] A test track, wherein the test track is used for the test vehicle to move;

[0007] a test vehicle, the test vehicle being arranged on the test track;

[0008] A sand and gravel flying module, which is arranged on the side of the test track and is used to spray sand and gravel onto the test track;

[0009] A control module is connected to the sand and gravel flying module and the test vehicle signal.

[0010] This solution uses a gravel spraying module to spray gravel onto the test track. Once the gravel is sprayed onto the test track, the test vehicle can brake under gravel conditions. This braking behavior allows the vehicle's braking status to be determined, addressing the shortcomings of existing technologies.

[0011] Preferably, in order to more easily analyze the braking status of the train, the present solution further includes a video recording module, which is provided corresponding to the test track.

[0012] This solution uses a video recording module to record the braking process of the test vehicle. The tester then analyzes the video frame by frame to analyze the braking status of the test vehicle.

[0013] Preferably, in order to avoid blind spots, several video recording modules are provided in this solution, and each video recording module corresponds to a different side of the test track.

[0014] Preferably, in order to avoid blind spots, the video recording modules are arranged on both sides and above the test track.

[0015] Preferably, in order to facilitate the raising of sand and gravel, the sand and gravel flying module of this solution includes a sand and gravel heating unit, and the sand and gravel heating unit is used to heat the sand and gravel.

[0016] This solution heats the sand and gravel using a sand and gravel heating unit. Heating the sand and gravel makes it easier to lift. Furthermore, dry sand and gravel can be lifted farther, making it easier to place the sand and gravel lifting module remotely to prevent it from interfering with the test vehicle.

[0017] Preferably, in order to simulate the braking state of the test vehicle in a wet state, the second solution further includes a spray module, which is used to spray water mist onto the test track.

[0018] In the second solution, the test track is moistened by a spray device. When the test track is moistened, the test vehicle moves on the moistened test track, thereby determining the braking status of the test vehicle under the wet gravel working condition.

[0019] Preferably, in order to facilitate subsequent repeated testing, the present solution further includes a tread cleaning module, which is used to clean sand and gravel on the test track.

[0020] After the test, this solution uses the tread cleaning module to clean the test track for subsequent reuse.

[0021] Preferably, in order to determine the position of the test vehicle on the test track and facilitate subsequent braking state separation, the present solution further includes a position detection module, which is used to detect the position of the test vehicle on the test track.

[0022] Preferably, in order to determine the position of the test vehicle, this solution preferably uses a through-beam photoelectric sensor as the position detection module, and a plurality of through-beam photoelectric sensors are provided, and the through-beam photoelectric sensors are installed on the side of the test track.

[0023] The beneficial effect of this utility model lies in that it configures a gravel spraying module to spray gravel onto the test track. Once the gravel is sprayed onto the test track, the test vehicle can brake under gravel conditions. When the test vehicle brakes under gravel conditions, the braking status of the train can be determined, thus overcoming the shortcomings of the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of the braking simulation test system.

[0025] Figure 2 Schematic diagram of the sand and gravel flying module spraying sand and gravel onto the test track.

[0026] Figure 3 This is a schematic diagram of the test vehicle after braking.

[0027] The reference numerals include: test track 1, test vehicle 2, sand and gravel flying module 3, video recording module 4, and tread cleaning module 5. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. When the following description refers to the drawings, unless otherwise indicated, identical numbers in different drawings represent identical or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0029] In this disclosure, unless otherwise specified, directional terms such as "inner" and "outer" are defined based on the contours of the corresponding components. Terms such as "first" and "second" are used in this disclosure to distinguish one element from another and do not convey order or importance.

[0030] Example 1

[0031] Basically as attached Figure 1 To the attached Figure 3 As shown, a braking simulation test system includes a test track 1, a test vehicle 2, a sand and gravel flying module 3, a video recording module 4, a position detection module, a tread cleaning module 5, and a control module. The test system of this embodiment is used to simulate the braking control effect of a train under sand and gravel conditions.

[0032] The test track 1 in this embodiment includes two rails, each of which is a railway track. The length of the test track 1 can be set to 300 meters. A test vehicle 2 is disposed on the test track 1, preferably a railcar. In this embodiment, the test vehicle 2 can move forward and backward on the test track 1, and can also brake on the test track 1, allowing test personnel to observe the braking status of the test vehicle 2. After observing the braking status of the test vehicle 2, the test personnel can analyze the braking status, thereby facilitating subsequent improvements to the train's braking system.

[0033] In this embodiment, a sand and gravel blowing module 3 is installed on the side of the test track 1. This module releases sand and gravel onto the test track 1, covering the surface with sand and gravel. The sand and gravel blowing module 3 specifically includes a sand and gravel storage tank and a fan. The sand and gravel storage tank is a rectangular trough containing sand and gravel. The fan is installed directly opposite the sand and gravel storage tank, with its air outlet facing the test track 1.

[0034] For example, when testing the braking state of test vehicle 2 under gravel conditions, the fan can operate to lift the gravel from the gravel storage tank and cover the surface of test track 1 with the gravel.

[0035] It should be noted that, in order to cover a larger area with sand and gravel, in some embodiments, multiple sand and gravel raising modules 3, for example three, may be provided. These multiple sand and gravel raising modules 3 are arranged in a straight line. When multiple sand and gravel raising modules 3 operate simultaneously, a larger area can be covered with sand and gravel, thereby meeting different testing needs.

[0036] To facilitate the lifting of the sand and gravel, this embodiment also includes a sand and gravel heating unit. The sand and gravel heating unit is preferably an electric heating pipe installed on the side wall of the sand and gravel storage tank. When the electric heating pipe is in operation, it can dry the sand and gravel stored in the sand and gravel storage tank, leaving the sand and gravel in a dry state.

[0037] It is understandable that when the sand and gravel are in a dry state, the fan can drive the sand and gravel to be lifted higher and farther. Therefore, the sand and gravel flying module 3 can be set at a farther position to prevent the sand and gravel flying module 3 from interfering with the operation of the test vehicle 2.

[0038] In this embodiment, a video recording module 4 is provided on the side of the test track 1. Video recording module 4 can be a monitoring camera. Multiple video recording modules 4 can be provided, specifically 3, 4, 5, or 6. Video recording modules 4 are disposed on the left and right sides of the test track 1, as well as above it, to facilitate monitoring of the test track 1 from multiple angles.

[0039] For example, when test vehicle 2 brakes on test track 1, video recording module 4 can record the working status of test vehicle 2. Afterwards, test personnel can analyze the video of test vehicle 2 braking frame by frame to more carefully analyze the braking status of test vehicle 2.

[0040] At the same time, in order to accurately determine the stopping distance of test vehicle 2 and facilitate subsequent analysis of the braking status of test vehicle 2, this embodiment also includes a position detection module, which is preferably a through-beam photoelectric sensor. The through-beam photoelectric sensor is installed on both sides of test track 1. When test vehicle 2 passes the location where the through-beam photoelectric sensor is installed, test vehicle 2 blocks the through-beam photoelectric sensor signal transmission, thereby detecting the position of test vehicle 2.

[0041] In this embodiment, multiple through-beam photoelectric sensors are provided, specifically three, four, five, or six sensors. The through-beam photoelectric sensors are arranged in a straight line. The speed of test vehicle 2 can also be determined based on the time that test vehicle 2 blocks different through-beam photoelectric sensors. The speed is calculated by dividing the distance between adjacent through-beam photoelectric sensors by the time difference between the two sensors detecting test vehicle 2.

[0042] This embodiment also includes a tread cleaning module 5, which is used to clean the test track 1 after the test is completed. The tread cleaning module 5 in this embodiment can be a track cleaning vehicle as known in the art. The track cleaning vehicle can move along the test track 1 to clean the test track 1. After the track cleaning vehicle performs an initial cleaning of the test track 1, a secondary cleaning can be performed manually. This two-step cleaning process thoroughly removes the gravel from the test track 1, facilitating subsequent testing.

[0043] It should be noted that to prevent the test vehicle 2 from sliding and colliding with the tread cleaning module 5 installed on the test track 1, the tread cleaning module 5 is preferably located at the end of the test track 1. In other words, a buffer distance of 50 meters is provided between the tread cleaning module 5 and the test vehicle 2. If the test vehicle 2 slides, the buffer distance between the tread cleaning module 5 and the test vehicle 2 allows the test vehicle 2 to slide, thus preventing the test vehicle 2 from colliding with the tread cleaning module 5 and damaging it.

[0044] In this embodiment, the test vehicle 2, the sand and gravel flying module 3 and the video recording module 4 are all in a signal connection state with the control module. The control module can be an industrial control computer in the prior art. The control module controls the sand and gravel flying module 3 to spray the test track 1. After the sand and gravel are sprayed onto the test track 1, the control module can control the test vehicle 2 to move and brake after reaching the sand and gravel spraying area. When the test vehicle 2 brakes, the video recording module 4 records the video. After the recording is completed. The control module controls the test vehicle 2 to retreat. When the test vehicle 2 retreats, the tread cleaning module 5 works to clean the tread of the test track 1.

[0045] Example 2

[0046] This embodiment improves upon Example 1 and preferably further includes a spray module. In this embodiment, the spray module is signal-connected to the control module. The spray module can be a conventional spray device. After the sand and gravel spraying module 3 sprays sand and gravel onto the test track 1, the control module controls the spray module. The spray device sprays a water mist onto the test track 1. The water mist contacts the sand and gravel, thereby wetting both the sand and gravel and the test track 1.

[0047] It is understandable that: when the gravel and the test track 1 are wetted, the test vehicle 2 brakes on the wetted test track 1, thereby simulating the braking state of the test vehicle 2 in a wet state.

[0048] The above is only an embodiment of the present invention, and the commonly known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A braking simulation test system, characterized in that: include A test track, wherein the test track is used for the test vehicle to move; a test vehicle, the test vehicle being arranged on the test track; A sand and gravel flying module, which is arranged on the side of the test track and is used to spray sand and gravel onto the test track; A control module is connected to the sand and gravel flying module and the test vehicle signal.

2. The braking simulation test system according to claim 1, characterized in that: It also includes a video recording module, which is set corresponding to the test track.

3. The braking simulation test system according to claim 2, characterized in that: A plurality of video recording modules are provided, and each video recording module corresponds to a different side of the test track.

4. The braking simulation test system according to claim 2 or 3, characterized in that: The video recording modules are arranged on both sides and above the test track.

5. The braking simulation test system according to claim 1, characterized in that: The sand and gravel flying module includes a sand and gravel heating unit, which is used to heat sand and gravel.

6. The braking simulation test system according to claim 1, characterized in that: It also includes a spray module, which is used to spray water mist onto the test track.

7. The braking simulation test system according to claim 1, characterized in that: The test track further comprises a tread cleaning module, which is used to clean sand and gravel on the test track.

8. The braking simulation test system according to claim 1, characterized in that: It also includes a position detection module, which is used to detect the position of the test vehicle on the test track.

9. The braking simulation test system according to claim 8, characterized in that: The position detection module is a through-beam photoelectric sensor, and the through-beam photoelectric sensor is provided in a plurality of pieces and is installed on the side of the test track.

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