Braking force detection device for vehicle engineering

Abstract

The utility model provides a braking force detection device for vehicle engineering, and relates to the technical field of vehicle detection. The braking force detection device for vehicle engineering comprises a detection table, four detection mechanisms are arranged in the detection table, each detection mechanism comprises two supporting rollers, clamping grooves are formed in the surfaces of the supporting rollers, electromagnetic blocks are connected in the clamping grooves, at least two simulation plates are arranged at the outer ends of the supporting rollers, clamping blocks are connected to the lower ends of the simulation plates, and the clamping blocks are connected to the clamping blocks. Temperature adjusting holes are formed in the supporting rollers. According to the braking force detection device for the vehicle engineering, the device can simulate friction force conditions under various actual road conditions by replacing the simulation plates with different friction coefficients, the temperature of the simulation plates can be changed by arranging the temperature adjusting holes, the refrigeration box and the heating box, the device can simulate roads with different friction coefficients at different temperatures, and the braking force detection device is suitable for the vehicle engineering. The performance of the vehicle braking force in various complex environments can be researched more comprehensively and deeply, and the detection accuracy is improved.

Description

Technical Field

[0001] This utility model relates to a braking force detection device, specifically a braking force detection device for vehicle engineering, belonging to the field of vehicle detection technology. Background Technology

[0002] In the field of vehicle engineering, the performance of the braking system is crucial. Accurately testing the braking force of a vehicle is of irreplaceable significance for ensuring vehicle driving safety, optimizing braking system design, and meeting relevant safety standards. In vehicle braking force testing, rollers are usually used to simulate road conditions when the vehicle is driving.

[0003] However, existing vehicle braking force testing devices use rollers that simulate road surfaces with a fixed coefficient of friction. However, different types of roads have different surface friction forces, and different road conditions have different requirements for vehicle braking force. Existing fixed friction rollers cannot accurately simulate vehicle braking under various actual road conditions, resulting in deviations between the test results and the actual braking performance of vehicles under different road conditions.

[0004] To address these issues, we provide a braking force detection device for vehicle engineering. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a braking force detection device for vehicle engineering, the specific technical solution of which is as follows:

[0006] A braking force testing device for vehicle engineering includes a testing platform with four testing mechanisms inside. Each testing mechanism includes two support rollers with slots on their surfaces. Electromagnetic blocks are connected to the slots. At least two simulation plates are provided at the outer ends of the support rollers, and locking blocks are connected to the lower ends of the simulation plates. Temperature adjustment holes are provided inside the support rollers. Air guide ring frames are provided on the side ends of the support rollers, and electric telescopic cylinders are connected to the side ends of the air guide ring frames. A refrigeration box and a heating box are provided inside the testing platform.

[0007] Preferably, the testing platform is made of high-strength metal and its surface is coated with an anti-corrosion coating. The testing platform has inclined surfaces on both sides, and anti-slip grooves are formed on the surface of the inclined surfaces. A control console is provided at the side end of the testing platform.

[0008] Preferably, the detection mechanism includes a data acquisition box, a driving device is installed inside the data acquisition box, the driving device is connected to the support roller, and the data acquisition box is connected to the control console.

[0009] Preferably, the support roller is rotatably connected to support seats on both sides, a bearing is provided between the support seats and the support roller, the support seats are connected inside the testing table, and the side end of the electric telescopic cylinder is connected to the support seats.

[0010] Preferably, the electromagnetic block can generate magnetic force when energized, the card block is a metal block that is sized to fit into the card slot, and the simulation plate is used to simulate road surfaces with different friction coefficients.

[0011] Preferably, the temperature regulating hole completely penetrates the support roller, the temperature regulating hole is located on both sides of the slot, and the support roller has grooves on both sides corresponding to the simulation plate.

[0012] Preferably, the air guide ring frame is located at the side end of the temperature regulating hole, the rotating shaft of the support roller is located inside the air guide ring frame, the side end of the air guide ring frame can be connected to the side end of the support roller, the air guide ring frame is connected to the refrigeration box and the heating box respectively through air guide pipes, and a temperature detector is provided at the side end of the support roller.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This vehicle engineering braking force testing device uses a simulation plate installed at the outer end of the support roller. By replacing the simulation plate with one of different friction coefficients, the device can simulate friction under various actual road conditions, making the vehicle braking force testing results more accurate and closer to the braking performance of the vehicle in actual road driving. The specific replacement operation is as follows: de-energize the electromagnetic block to release the magnetic attraction of the locking block. At this time, the simulation plate can be removed from the outer end of the support roller. Then, replace it with a simulation plate with one of different friction coefficients and insert its locking block into the slot. Energize the electromagnetic block, which will generate magnetic force to magnetically fix the simulation plate. The operation does not require complicated tools or professional technicians to spend a lot of time adjusting it, reducing the difficulty and complexity of operation.

[0015] 2. This vehicle engineering braking force testing device, equipped with a temperature adjustment port, a cooling box, and a heating box, can change the temperature of the simulation plate. Specifically, when the support roller stops rotating, the electric telescopic cylinder is activated, which pushes the air guide ring frame to fit against the side of the support roller, thereby connecting the air guide ring frame with the temperature adjustment port. Activating the cooling or heating box injects cold or hot air into the air guide ring frame through the air guide pipe, allowing the gas to enter the temperature adjustment port. This heat exchange regulates the temperature of the support roller and the simulation plate, simulating the impact of road conditions on vehicle braking force at different temperatures. This device can simulate roads with different temperatures and friction coefficients. By adjusting these two important factors—temperature and friction coefficient—the device helps to more comprehensively and deeply study the performance of vehicle braking force under various complex environments, improving the accuracy of the test. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the detection mechanism structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the support roller structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the side end structure of the support roller of this utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the support roller of this utility model.

[0021] Figure descriptions: 1. Testing table; 2. Testing mechanism; 201. Support roller; 202. Slot; 203. Electromagnetic block; 204. Simulation board; 205. Card block; 206. Temperature adjustment hole; 207. Air guide ring frame; 208. Electric telescopic cylinder; 209. Data acquisition box; 2010. Support base; 2011. Groove; 3. Refrigeration box; 4. Heating box; 5. Control console; 6. Air guide pipe; 7. Temperature detector. Detailed Implementation

[0022] The present invention will now be further described with reference to the accompanying drawings.

[0023] Please see Figure 1 — Figure 5 The device includes a testing platform 1, which is made of high-strength metal and has an anti-corrosion coating to ensure its service life. The testing platform 1 has inclined surfaces on both sides, and anti-slip grooves are provided on the surface of the inclined surfaces to facilitate the movement of vehicles onto the testing platform 1. A control console 5 is provided on the side of the testing platform 1. The control console 5 is used to control the operation of the device and analyze the test data.

[0024] The testing platform 1 is equipped with four testing mechanisms 2, each corresponding to one of the four wheels of the vehicle. Each testing mechanism 2 includes two support rollers 201 and a data acquisition box 209. The data acquisition box 209 contains a drive device connected to the support rollers 201. The data acquisition box 209 is used to collect the impact of wheel braking on the support rollers 201, thereby collecting the braking force data of the wheels. Its principle is the same as that of the roller reaction force braking test bench. The data acquisition box 209 is connected to the control console 5, so that the collected data can be transmitted to the control console 5. Support seats 2010 are rotatably connected to both sides of the support rollers 201. The support seats 2010 are used to support and connect the support rollers 201. Bearings are provided between the support seats 2010 and the support rollers 201 to facilitate the rotation of the support rollers 201. The support seats 2010 are connected inside the testing platform 1.

[0025] The support roller 201 has a slot 202 on its surface, and an electromagnetic block 203 is connected in the slot 202. At least two simulation plates 204 are provided at the outer end of the support roller 201 so that the simulation plates 204 can be removed from the outer end of the support roller 201. Different simulation plates 204 are used to simulate road surfaces with different friction coefficients. The lower end of the simulation plate 204 is connected to a locking block 205. When the electromagnetic block 203 is energized, it can generate magnetic force. The locking block 205 is a metal block, and its size is suitable for insertion into the slot 202. When the locking block 205 is inserted into the slot 202, the electromagnetic block 203 is energized and it will generate magnetic force to magnetically fix the locking block 205, thereby fixing the simulation plate 204. The support roller 201 has grooves 2011 on both sides corresponding to the simulation plates 204. When removing the simulation plates 204, the grooves 2011 can be used to hold the two ends of the simulation plates 204 by hand, so that the simulation plates 204 can be easily removed from the outer end of the support roller 201.

[0026] A temperature regulating hole 206 is provided inside the support roller 201, completely penetrating the support roller 201. The temperature regulating hole 206 is located on both sides of the slot 202, without interfering with the slot 202. A gas guide ring frame 207 is provided on the side end of the support roller 201. The end of the gas guide ring frame 207 facing the temperature regulating hole 206 is open. An electric telescopic cylinder 208 is connected to the side end of the gas guide ring frame 207. The electric telescopic cylinder 208 is used to adjust the position of the gas guide ring frame 207. The side end of 208 is connected to the support base 2010 to fix the electric telescopic cylinder 208. The air guide ring frame 207 is located on the side end of the temperature regulating hole 206 and can communicate with the inside of the temperature regulating hole 206. The rotating shaft of the support roller 201 is located inside the air guide ring frame 207, so that when the air guide ring frame 207 leaves the side end of the support roller 201, the rotation of the support roller 201 will not affect the air guide ring frame 207. The side end of the air guide ring frame 207 can be connected to the side end of the support roller 201.

[0027] The testing platform 1 is equipped with a cooling box 3 and a heating box 4. The cooling box 3 includes a fan and a cooler, which can cool the airflow injected by the fan into cold air. The heating box 4 includes a fan and a heater, which can heat the airflow injected by the fan into hot air. The air guide ring 207 is connected to the cooling box 3 and the heating box 4 respectively through the air guide pipe 6. In this way, the cooling box 3 and the heating box 4 can transmit the generated cold air and hot air into the air guide ring 207 through the air guide pipe 6. A temperature detector 7 is provided on the side of the support roller 201. The temperature detector 7 is used to detect the temperature of the simulation board 204.

[0028] The electric telescopic cylinder 208 in this application is a common electrical device in the prior art. This application will not elaborate on its model or internal structure. It can also be replaced by other power sources.

[0029] When using this utility model: by replacing the simulation plate 204 with different friction coefficients, the device can simulate friction under various actual road conditions. The replacement operation is as follows: de-energize the electromagnetic block 203 to release the magnetic attraction of the locking block 205. At this time, the simulation plate 204 can be removed from the outer end of the support roller 201. Then, replace the simulation plate 204 with a simulation plate 204 with a different friction coefficient, insert its locking block 205 into the slot 202, and energize the electromagnetic block 203, which will generate magnetic force to magnetically fix the simulation plate 204.

[0030] The temperature of the simulation plate 204 at the outer end of the support roller 201 can be adjusted by using the cooling box 3 and the heating box 4. Specifically, the cooling box 3 or the heating box 4 is started, which injects cold or hot air into the air guide ring frame 207 through the air guide pipe 6. The air guide ring frame 207 is pushed by the electric telescopic cylinder 208 so that it is in contact with the side end of the support roller 201, thereby allowing the gas to enter the temperature adjustment hole 206. The temperature of the simulation plate 204 is adjusted through heat exchange. This device can simulate roads with different temperatures and different friction coefficients. By adjusting these two important factors, temperature and friction coefficient, it is helpful to study the performance of vehicle braking force in various complex environments more comprehensively and in-depth, and improve the accuracy of the test.

[0031] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. A braking force testing device for vehicle engineering, comprising a testing platform (1), characterized in that: The testing platform (1) is equipped with four testing mechanisms (2). Each testing mechanism (2) includes two support rollers (201). The surface of the support rollers (201) is provided with a slot (202). An electromagnetic block (203) is connected in the slot (202). At least two simulation plates (204) are provided at the outer end of the support rollers (201). A card block (205) is connected at the lower end of the simulation plates (204). A temperature regulating hole (206) is provided in the support rollers (201). A gas guide ring frame (207) is provided on the side end of the support rollers (201). An electric telescopic cylinder (208) is connected to the side end of the gas guide ring frame (207). The testing platform (1) is equipped with a refrigeration box (3) and a heating box (4).

2. The braking force detection device for vehicle engineering according to claim 1, characterized in that: The testing platform (1) is made of high-strength metal and its surface is coated with an anti-corrosion coating. The testing platform (1) has inclined surfaces on both sides and anti-slip grooves on the surface of the inclined surfaces. The testing platform (1) has a control console (5) on its side.

3. The braking force detection device for vehicle engineering according to claim 2, characterized in that: The detection mechanism (2) includes a data acquisition box (209), which is equipped with a driving device. The driving device is connected to the support roller (201), and the data acquisition box (209) is connected to the control console (5).

4. The braking force detection device for vehicle engineering according to claim 1, characterized in that: The support roller (201) is rotatably connected to the two sides of the support seat (2010), and a bearing is provided between the support seat (2010) and the support roller (201). The support seat (2010) is connected inside the testing table (1), and the side end of the electric telescopic cylinder (208) is connected to the support seat (2010).

5. The braking force detection device for vehicle engineering according to claim 1, characterized in that: The electromagnetic block (203) can generate magnetic force when energized, the card block (205) is a metal block that is sized to fit into the card slot (202), and the simulation board (204) is used to simulate road surfaces with different friction coefficients.

6. The braking force detection device for vehicle engineering according to claim 1, characterized in that: The temperature regulating hole (206) completely penetrates the support roller (201). The temperature regulating hole (206) is located on both sides of the slot (202). The support roller (201) has grooves (2011) corresponding to the simulation plate (204) on both sides.

7. The braking force detection device for vehicle engineering according to claim 1, characterized in that: The air guide ring frame (207) is located on the side of the temperature regulating hole (206), and the rotating shaft of the support roller (201) is located inside the air guide ring frame (207). The side of the air guide ring frame (207) can be connected to the side of the support roller (201). The air guide ring frame (207) is connected to the refrigeration box (3) and the heating box (4) respectively through the air guide pipe (6). A temperature detector (7) is provided on the side of the support roller (201).

Images