Braking distance detection device for explosion-proof lithium ion electric locomotive for coal mine

Abstract

The utility model belongs to the technical field of vehicle braking distance detection, and particularly relates to a coal mine explosion-proof lithium ion electric locomotive braking distance detection device which comprises an electric locomotive body, a rectangular block is fixedly connected to the side face of the electric locomotive body, and an electric telescopic rod with a downward telescopic end is fixedly installed at the end, away from the electric locomotive body, of the rectangular block. A movable measuring box is arranged below the electric telescopic rod, two sliding rods which are transversely arranged in a front-back corresponding mode are jointly and fixedly connected between the left inner wall and the right inner wall of the movable measuring box, and two sliding blocks which are arranged in a left-right corresponding mode are jointly and slidably arranged on the two sliding rods in a sleeving mode. The device automatically stops the mobile measurement box at the braking point at the moment of braking of the electric locomotive, and is high in measurement precision, high in measurement efficiency, free of manual operation and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of vehicle braking distance detection technology, and in particular to a braking distance detection device for explosion-proof lithium-ion electric locomotives used in coal mines. Background Technology

[0002] Explosion-proof lithium-ion electric locomotives for coal mines are electric transport vehicles specifically designed for use in coal mining environments. They possess explosion-proof capabilities to address the potential explosion hazards within mines. The design and manufacture of explosion-proof lithium-ion electric locomotives for coal mines must strictly adhere to international and local safety standards and regulations to ensure their safety and reliability in coal mine operations.

[0003] Braking distance testing is a critical safety consideration for locomotives used in coal mines, especially in the confined and challenging working environment. Accurate braking distance measurement is essential for preventing collisions and ensuring worker safety. However, existing methods for testing locomotive braking distance often involve setting a braking point, having the driver apply the brakes after reaching that point, and then calculating the distance from the braking point to the locomotive's stop. This method is prone to error because each driver's reaction time and the timing of brake application vary, leading to inaccurate measurements. Furthermore, manual braking distance measurement is time-consuming, labor-intensive, and inefficient.

[0004] Therefore, we propose a braking distance detection device for explosion-proof lithium-ion electric locomotives used in coal mines to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a braking distance detection device for explosion-proof lithium-ion electric locomotives used in coal mines.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A braking distance detection device for explosion-proof lithium-ion electric locomotives used in coal mines includes a locomotive body. A rectangular block is fixedly connected to the side of the locomotive body. An electric telescopic rod with its telescopic end facing downward is fixedly installed at the end of the rectangular block away from the locomotive body. A movable measuring box is provided below the electric telescopic rod. Two sliding rods arranged laterally in a corresponding manner are fixedly connected between the left and right inner walls of the movable measuring box. Two sliding blocks arranged in a corresponding manner are slidably sleeved on the two sliding rods. Two support blocks arranged in a corresponding manner are fixedly connected to the ends of the two sliding blocks that are close to each other. A rotating roller is rotatably connected between the two pairs of support blocks. A first spring is sleeved on each of the two sliding rods. The two ends of the two first springs are respectively fixedly connected to the two sliding blocks.

[0008] Preferably, a support column is fixedly connected to the bottom wall of the movable measuring box, an isosceles trapezoidal block is provided on the support column, a sliding groove is provided at the bottom of the isosceles trapezoidal block, the isosceles trapezoidal block is sleeved on the upper end of the support column, a second spring is sleeved on the support column, one end of the second spring is fixedly connected to the bottom wall of the movable measuring box, and the other end of the second spring away from the bottom wall of the movable measuring box is fixedly connected to the isosceles trapezoidal block.

[0009] Preferably, the telescopic end of the electric telescopic rod is fixedly connected to a pressing block, the pressing block passes through the upper end of the movable measuring box and is slidably connected to it, and the upper end of the pressing block is in contact with the upper end of the isosceles trapezoidal block.

[0010] Preferably, the movable measuring box has movable openings on both the left and right sides, and the two sliding blocks are fixedly connected to an extension block at one end away from each other, and the two extension blocks are fitted with rubber anti-slip sleeves.

[0011] Preferably, a laser rangefinder is fixedly installed at the front end of the mobile measuring box, an extension rod is fixedly connected to the side of the electric vehicle body, a ranging plate is fixedly connected to the lower end of the extension rod, the ranging plate is in contact with the front end of the laser rangefinder, and a signal transmitter is fixedly installed at the bottom of the electric vehicle body.

[0012] Preferably, a pulley assembly is fixedly installed at the bottom of the mobile measuring box, a main track is provided below the motor vehicle body, and a secondary track parallel to the main track is provided on the side of the main track.

[0013] Compared with existing technologies, the advantages of this device are:

[0014] 1. After sensing the pneumatic braking system of the electric vehicle, the signal transmitter immediately sends a signal to the electric telescopic pole, causing the moving measuring box to stop immediately at the position where the electric vehicle was when the braking system was activated. The rubber anti-slip sleeve prevents the moving measuring box from continuing to slide after it stops. The electric telescopic pole is equipped with high power and fast retraction speed, further reducing the distance measurement error. The braking distance of the electric vehicle is measured by a laser rangefinder, which has high measurement accuracy and eliminates the need for manual measurement using tools such as tape measures. It has high measurement efficiency and strong practicality.

[0015] In summary, this device automatically stops the moving measuring box at the braking point the instant the locomotive brakes, and it has high measurement accuracy, high measurement efficiency, requires no manual operation, and is highly practical. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the braking distance detection device for an explosion-proof lithium-ion electric locomotive used in coal mines proposed in this utility model.

[0017] Figure 2This is a front perspective view of the connection between the extrusion block and the moving measuring box in a braking distance detection device for explosion-proof lithium-ion electric locomotives used in coal mines, as proposed in this utility model.

[0018] Figure 3 This is a front sectional view of the interior of the moving measuring box in a braking distance detection device for explosion-proof lithium-ion electric locomotives used in coal mines, as proposed in this utility model.

[0019] In the diagram: 1. Locomotive body, 2. Main track, 3. Secondary track, 4. Moving measuring box, 5. Sliding rod, 6. Sliding block, 7. First spring, 8. Support block, 9. Rotating roller, 10. Extension block, 11. Support column, 12. Second spring, 13. Isosceles trapezoidal block, 14. Rubber anti-slip sleeve, 15. Movable opening, 16. Extrusion block, 17. Electric telescopic rod, 18. Rectangular block, 19. Laser rangefinder, 20. Extension rod, 21. Rangefinder plate, 22. Signal transmitter, 23. Pulley assembly. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-3 A braking distance detection device for explosion-proof lithium-ion locomotives used in coal mines includes a locomotive body 1. A rectangular block 18 is fixedly connected to the side of the locomotive body 1. An electric telescopic rod 17 with its telescopic end facing downward is fixedly installed at the end of the rectangular block 18 away from the locomotive body 1. A movable measuring box 4 is provided below the electric telescopic rod 17. A pulley assembly 23 is fixedly installed at the bottom of the movable measuring box 4. A main track 2 is provided below the locomotive body 1, and a secondary track 3 parallel to the main track 2 is provided on the side of the main track 2. The locomotive body 1 travels on the main track 2. A pressing block 16 is fixedly connected to the telescopic end of the electric telescopic rod 17. The pressing block 16 passes through the upper end of the movable measuring box 4 and is slidably connected to it. When the locomotive body 1 is traveling, the pressing block 16 can be extended into the movable measuring box 4 through the electric telescopic rod 17, driving the movable measuring box 4 to move on the secondary track 3.

[0022] Two sliding rods 5, arranged laterally and correspondingly, are fixedly connected between the left and right inner walls of the mobile measuring box 4. Two sliding blocks 6, arranged laterally and correspondingly, are slidably mounted on the two sliding rods 5. Two support blocks 8, arranged laterally and correspondingly, are fixedly connected to one end of each sliding block 6. Rotating rollers 9 are rotatably connected between each pair of support blocks 8. A first spring 7 is mounted on each sliding rod 5, and both ends of the first spring 7 are fixedly connected to the two sliding blocks 6. A support column 11 is fixedly connected to the bottom wall of the mobile measuring box 4. An isosceles trapezoidal block 13 is mounted on the support column 11. A sliding groove is provided at the bottom of the isosceles trapezoidal block 13, which is mounted on the upper end of the support column 11. A second spring 12 is mounted on the support column 11. One end of the second spring 12 is fixedly connected to the bottom wall of the mobile measuring box 4, and the end of the second spring 12 away from the bottom wall of the mobile measuring box 4 is fixedly connected to the isosceles trapezoidal block 13. In the initial state, when the extrusion block 16 extends into the moving measuring box 4, it contacts the upper end of the isosceles trapezoidal block 13 and presses the isosceles trapezoidal block 13 down. Due to the tension of the first spring 7, the two sliding blocks 6 slide closer to each other along the sliding rod 5 until the two rotating rollers 9 contact the extrusion block 16. The moving measuring box 4 has movable openings 15 on both the left and right sides. Extension blocks 10 are fixedly connected to the ends of the two sliding blocks 6 that are far apart from each other. Rubber anti-slip sleeves 14 are fitted onto both extension blocks 10. The extension blocks 10 and rubber anti-slip sleeves 14 are located inside the moving measuring box 4. The extrusion block 16 is electrically... When the telescopic rod 17 retracts and leaves the interior of the movable measuring box 4, the isosceles trapezoidal block 13 rises and resets due to the elastic force of the second spring 12. This causes the two rotating rollers 9 to roll along the two inclined surfaces of the isosceles trapezoidal block 13, thereby moving the two sliding blocks 6 away from each other until the two rotating rollers 9 come into contact with the left and right sides of the isosceles trapezoidal block 13 and stop. At this time, the extension block 10 and the rubber anti-slip sleeve 14 extend to the outside of the movable measuring box 4 through the movable opening 15. The elastic force of the second spring 12 is set to be greater than that of the first spring 7, so it can spread the two rotating rollers 9 apart through the isosceles trapezoidal block 13.

[0023] A laser rangefinder 19 is fixedly mounted on the front end of the mobile measuring box 4. An extension rod 20 is fixedly connected to the side of the electric locomotive body 1, and a ranging plate 21 is fixedly connected to the lower end of the extension rod 20. The ranging plate 21 is in contact with the front end of the laser rangefinder 19. A signal transmitter 22 is fixedly mounted on the bottom of the electric locomotive body 1. The signal transmitter 22 is associated with the braking system of the electric locomotive body 1. When the braking system brakes, the signal transmitter 22 sends a signal to the electric telescopic rod 17 to retract it. The motor power of the electric telescopic rod 17 is set to be relatively large, so that its retraction speed is faster and the ranging error is reduced. Both the signal transmitter 22 and the laser rangefinder 19 are existing technologies and will not be described in detail here.

[0024] When using this utility model, when the locomotive body 1 travels along the main track 2, the squeezing block 16 extends into the moving measuring box 4. The moving measuring box 4 is driven by the pulley assembly 23 at the bottom to move along the secondary track 3. When the driver uses the braking system to brake, the signal transmitter 22 senses the operation of the braking system and immediately sends a signal to the electric telescopic rod 17 to retract it. At this time, the extension block 10 and the rubber anti-slip sleeve 14 inside the moving measuring box 4 extend to the outside of the moving measuring box 4 through the movable opening 15 and abut against the secondary track 3, thereby stopping the moving measuring box 4. The rubber anti-slip sleeve 14 prevents it from continuing to slide and causing distance measurement error. After the locomotive body 1 brakes, the distance of sliding to one end stops. At this time, the distance between the laser rangefinder 19 and the measuring plate 21 is measured, and the braking distance of the locomotive body 1 can be measured.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A braking distance detection device for an explosion-proof lithium-ion electric locomotive used in coal mines, comprising a locomotive body (1), characterized in that, A rectangular block (18) is fixedly connected to the side of the locomotive body (1). An electric telescopic rod (17) with its telescopic end facing downward is fixedly installed at the end of the rectangular block (18) away from the locomotive body (1). A movable measuring box (4) is provided below the electric telescopic rod (17). Two sliding rods (5) are fixedly connected between the left and right inner walls of the movable measuring box (4). Two sliding blocks (6) are slidably sleeved on the two sliding rods (5). Two support blocks (8) are fixedly connected to the two sliding blocks (6) at their respective ends. A rotating roller (9) is rotatably connected between the two corresponding support blocks (8). A first spring (7) is sleeved on the two sliding rods (5). The two ends of the two first springs (7) are fixedly connected to the two sliding blocks (6) respectively.

2. The braking distance detection device for explosion-proof lithium-ion electric locomotives used in coal mines according to claim 1, characterized in that, A support column (11) is fixedly connected to the bottom wall of the movable measuring box (4). An isosceles trapezoidal block (13) is provided on the support column (11). A sliding groove is provided at the bottom of the isosceles trapezoidal block (13). The isosceles trapezoidal block (13) is sleeved on the upper end of the support column (11). A second spring (12) is sleeved on the support column (11). One end of the second spring (12) is fixedly connected to the bottom wall of the movable measuring box (4). The end of the second spring (12) away from the bottom wall of the movable measuring box (4) is fixedly connected to the isosceles trapezoidal block (13).

3. The braking distance detection device for explosion-proof lithium-ion electric locomotives used in coal mines according to claim 1, characterized in that, The electric telescopic rod (17) has a compression block (16) fixedly connected to its telescopic end. The compression block (16) passes through the upper end of the moving measuring box (4) and is slidably connected to it. The upper end of the compression block (16) is in contact with the upper end of the isosceles trapezoidal block (13).

4. The braking distance detection device for explosion-proof lithium-ion electric locomotives used in coal mines according to claim 1, characterized in that, The movable measuring box (4) has movable openings (15) on both the left and right sides. The two sliding blocks (6) are fixedly connected to extension blocks (10) at one end away from each other. The two extension blocks (10) are covered with rubber anti-slip sleeves (14).

5. The braking distance detection device for explosion-proof lithium-ion electric locomotives used in coal mines according to claim 1, characterized in that, A laser rangefinder (19) is fixedly installed at the front end of the mobile measuring box (4). An extension rod (20) is fixedly connected to the side of the motor vehicle body (1). A rangefinder plate (21) is fixedly connected to the lower end of the extension rod (20). The rangefinder plate (21) is in contact with the front end of the laser rangefinder (19). A signal transmitter (22) is fixedly installed at the bottom of the motor vehicle body (1).

6. The braking distance detection device for explosion-proof lithium-ion electric locomotives used in coal mines according to claim 1, characterized in that, The bottom of the mobile measuring box (4) is fixedly equipped with a pulley assembly (23), and a main track (2) is provided below the motor vehicle body (1). A secondary track (3) parallel to the main track (2) is provided on the side of the main track (2).

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