Test bench for testing single-vehicle braking equipment of railway vehicle

Abstract

The utility model discloses a test bench for testing single railway vehicle brake equipment, which comprises a detection bench, a detector, a plurality of concave limiting support blocks, a plurality of cylindrical shaft tubes, a lifting block shaped like a Chinese character'hui ', a plurality of lifting limiting shafts, a lifting moving structure and a buffer lifting structure, and relates to the technical field of railway equipment testing. Through a lifting moving structure, especially the combination of two pairs of hydraulic expansion pieces and universal wheels, the detection bench can realize stable and accurate horizontal movement. Meanwhile, the telescopic function of the hydraulic telescopic device allows the height of the detection table to be adjusted in the vertical direction, and the requirements of different detection scenes are met; a lifting circular ring electromagnet and a lifting circular ring magnet in the lifting buffer structure are matched with each other, so that the magnetic suspension of a lifting concentric-square-shaped block is realized; by means of the design, friction and abrasion caused by mechanical contact are reduced, road surface vibration is effectively isolated through magnetic repulsive force, vibration is prevented from being transmitted to a detection table, and detection accuracy and stability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of railway equipment testing, in particular to a test bench for testing single-vehicle brake equipment of railway vehicles. Background Art

[0002] Railway transportation has become a primary mode of transportation, with a wide variety of vehicles, all requiring precise parking at every station. Therefore, locomotives undergo rigorous braking performance testing before leaving the factory to ensure safe operation. As a core component of a locomotive, the braking system's performance is crucial, and shoe braking is the most common and effective method of braking a locomotive. Simply put, braking involves applying resistance to a moving object to slow it down, stop it, or maintain stability for a stationary object.

[0003] However, in actual application, we face two major challenges:

[0004] When a vehicle is driving, it will cause vibration to the local ground. Unfortunately, the existing test bench design fails to effectively isolate the interference of this vibration on the test results, resulting in deviations in the braking performance test data and affecting the accuracy of the evaluation.

[0005] The currently used brake testing equipment lacks a matching toolbox design. Once the detector fails during the testing process, it will greatly increase the difficulty and inconvenience of the maintenance work, which is not conducive to quickly restoring the test process and ensuring the efficiency of testing. For the above problems, there may already be technical means to solve them in the existing technology, but this case intends to provide an alternative or replacement technical solution. Utility Model Content

[0006] To achieve the above purpose, the present invention is implemented through the following technical solutions: a test bench for testing the braking equipment of single railway vehicles, comprising: a test bench, a detector, a plurality of concave limit support blocks, a plurality of cylindrical shaft tubes, a lifting and returning block, a plurality of lifting and returning limit shafts, a lifting and returning moving structure and a lifting and returning buffer structure, the detector is installed on the test bench, the lifting and returning block is installed on the test bench, a plurality of the concave limit support blocks are movably mounted on the lifting and returning block, a plurality of the lifting and returning limit shafts are movably and evenly inserted into the lifting and returning block, and a plurality of the lifting and returning limit shafts are respectively inserted into a plurality of On the concave limit support block, several cylindrical shaft tubes are respectively installed on several concave limit support blocks, and several cylindrical shaft tubes are respectively movably sleeved on several lifting limit shafts, the lifting and moving structure is installed on the detection platform, the buffer lifting structure is installed on several concave limit support blocks, several lifting cylindrical shaft tubes and lifting circular blocks, and the lifting buffer structure includes: several lifting ring blocks, several lifting limit balls, several lifting ring electromagnets, several lifting ring magnets, batteries, several resistance automatic regulators, several infrared rangefinders and several set buffer springs;

[0007] Several lifting ring blocks are evenly installed on the lifting circular block, and several lifting ring blocks are movably mounted on several lifting limit shafts, several lifting ring electromagnets are installed on the concave limit support blocks, several lifting ring magnets are respectively installed on several lifting ring blocks, several lifting limit balls are movably inserted on the inner and outer sides of several lifting ring blocks, the battery is installed on the testing platform, several automatic resistance regulators are respectively installed on several lifting ring electromagnets, several infrared rangefinders are respectively installed on several concave limit support blocks, and several set buffer springs are respectively mounted on several lifting limit shafts;

[0008] It should be noted that, in the above, the detection platform on it is driven to move stably horizontally through the lifting and moving structure, the detector on it is driven to move stably through the detection platform, and by reaching a certain position, the lifting and moving structure is raised and lowered, thereby changing the height of the detection platform, the detection platform drives the lifting circular block on it, and the lifting circular block drives the lifting limit shaft and the concave limit support block on it, and the concave limit support block contacts the road surface, and the lifting ring electromagnet is energized to magnetically repel the lifting ring magnet, and the lifting ring magnet drives the lifting ring block on it. , so that the lifting ring block is located between a pair of cylindrical shaft tubes on the concave limit support block due to magnetic repulsion, and performs stable lifting and lowering movement. The lifting ring electromagnet is magnetically adjusted by the resistance automatic regulator. By changing the magnetic size, the position of the lifting circular block between the pair of concave limit support blocks is changed to stabilize it. The lifting circular block is lifted by magnetic suspension, which prevents the vibrating concave limit support block from transferring shaking kinetic energy to the lifting circular block. The height of the lifting circular block is limited by the infrared rangefinder, and the lifting ring block is limited by the set buffer spring.

[0009] Preferably, the lifting and moving structure comprises: two pairs of hydraulic telescopic devices, a hydraulic box, a hydraulic pump, two pairs of convex telescopic blocks, two pairs of universal wheels and two pairs of electromagnetic telescopic locks;

[0010] Two pairs of convex lifting grooves are provided on the inspection platform, and the two pairs of convex telescopic blocks are movably inserted into the inner sides of the two pairs of convex lifting grooves, and the two pairs of hydraulic expanders are respectively installed on the inner sides of the two pairs of convex lifting grooves. The hydraulic box is installed on the inspection platform, and the hydraulic pump is installed on the hydraulic box, and the hydraulic pump is connected to the two pairs of hydraulic expanders. Two pairs of universal wheels are respectively installed on the two pairs of convex telescopic blocks, and two pairs of electromagnetic telescopic locks are installed on the inner sides of the two pairs of convex lifting grooves.

[0011] It should be noted that, in the above, two pairs of hydraulic telescopic devices are used to drive the convex telescopic blocks thereon respectively, so that the two pairs of convex telescopic blocks are stably lifted and lowered along the inner sides of the two pairs of convex lifting grooves respectively, and the two pairs of convex telescopic blocks are used to drive the universal wheels thereon respectively, and the universal wheels are used to drive the detection platform thereon to move stably, and the convex telescopic blocks are magnetically expanded, inserted and limited by electromagnetic telescopic locks, and the liquid inside the hydraulic box is drained to the inner sides of the two pairs of hydraulic telescopic devices by a hydraulic pump.

[0012] Preferably, a plurality of the concave limiting support blocks are respectively provided with supporting rubber rings.

[0013] Preferably, a displacement monitor is provided on the detection platform.

[0014] Preferably, an image recorder is provided on the detection platform.

[0015] Preferably, a control panel is provided on the testing platform. Beneficial effects

[0016] The utility model provides a test bench for testing the braking equipment of a single railway vehicle. Compared with the prior art, the test bench for testing the braking equipment of a single railway vehicle has the following beneficial effects: through the lifting and moving structure, especially the combination of two pairs of hydraulic telescopes and universal wheels, the test bench can achieve stable and precise horizontal movement; at the same time, the telescopic function of the hydraulic telescope also allows the test bench to adjust its height in the vertical direction to meet the needs of different testing scenarios; the lifting ring electromagnet and the lifting ring magnet in the lifting buffer structure cooperate with each other to achieve magnetic suspension of the lifting circular block; this design not only reduces the friction and wear caused by mechanical contact, but also effectively isolates the road vibration through the magnetic repulsive force, preventing the vibration from being transmitted to the test bench, thereby improving the accuracy and stability of the test; the introduction of the infrared rangefinder enables the height of the lifting circular block to be accurately monitored and controlled, ensuring the accuracy and consistency of the test process; at the same time, the set buffer spring provides additional buffering and limiting effects for the lifting circular block, further enhancing The stability and reliability of the system; the automatic resistance regulator can dynamically adjust the magnetic strength of the lifting ring electromagnet according to actual needs, thereby realizing fine control of the position of the lifting circular block; this intelligent adjustment function enables the system to adapt to different working environments and conditions; the detection platform is integrated with multiple functional components such as displacement monitor, image recorder and control panel to realize comprehensive monitoring and recording of the detection process; at the same time, the introduction of the control panel makes the operation more convenient and intuitive, and improves work efficiency; the design of the electromagnetic telescopic lock provides a reliable locking mechanism for the convex telescopic block, ensuring that the detection platform will not move or shake due to external force during the detection process, thereby ensuring the safety and accuracy of the detection; the support rubber ring set on the concave limit support block increases the contact area and friction with the road surface, thereby improving the stability of the system; at the same time, this design also facilitates the replacement of support rubber rings of different specifications or materials according to actual needs to adapt to different road conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a front and cross-section of a test bench for testing single-vehicle brake equipment of railway vehicles according to the present invention.

[0018] Figure 2 This is a top-down cross-sectional schematic diagram of the test bench for testing the braking equipment of a single railway vehicle according to the present invention.

[0019] Figure 3 for Figure 1 A partial enlarged view of "A".

[0020] In the figure: 1. Testing table; 2. Concave limit support block; 3. Cylindrical shaft tube; 4. Lifting circular block; 5. Lifting limit shaft; 6. Lifting ring block; 7. Lifting limit ball; 8. Lifting ring electromagnet; 9. Lifting ring magnet; 10. Automatic resistance adjuster; 11. Hydraulic expander; 12. Hydraulic box; 13. Hydraulic pump; 14. Convex expansion block; 15. Universal wheel; 16. Electromagnetic expansion lock. DETAILED DESCRIPTION

[0021] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0022] Through the use of wires by those skilled in the art, all electrical components in this case are connected to their corresponding power supplies, and appropriate controllers and encoders should be selected according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the following working principle, in which the electrical components are electrically connected in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control. Example

[0023] The present invention will be described in detail below with reference to the accompanying drawings. Figure 1-3As shown, the detector is installed on the detection platform 1, the lifting circle block 4 is installed on the detection platform 1, several of the concave limit support blocks 2 are movably mounted on the lifting circle block 4, several of the lifting limit shafts 5 are movably and evenly inserted in the lifting circle block 4, and several of the lifting limit shafts 5 are respectively inserted in several of the concave limit support blocks 2, several of the cylindrical shaft tubes 3 are respectively installed on several of the concave limit support blocks 2, and several of the cylindrical shaft tubes 3 are movably mounted on several of the lifting limit shafts 5, the lifting and moving structure is installed on the detection platform 1, and the buffer lifting structure is installed on several of the concave limit support blocks 2 , several lifting cylindrical shaft tubes 3 and lifting circular blocks 4, the lifting buffer structure includes: several lifting ring blocks 6, several lifting limit balls 7, several lifting ring electromagnets 8, several lifting ring magnets 9, batteries, several automatic resistance regulators 10, several infrared rangefinders and several set buffer springs; several of the lifting ring blocks 6 are evenly installed on the lifting circular block 4, and several of the lifting ring blocks 6 are movably mounted on several of the lifting limit shafts 5, several of the lifting ring electromagnets 8 are installed on the concave limit support block 2, several of the lifting ring magnets 9 are respectively installed on several of the lifting ring blocks 6, and several of the The lifting limit balls 7 are movably inserted on the inner and outer sides of several lifting ring blocks 6, the battery is installed on the detection platform 1, several automatic resistance regulators 10 are installed on several lifting ring electromagnets 8, several infrared rangefinders are installed on several concave limit support blocks 2, and several set buffer springs are respectively set on several lifting limit shafts 5; the lifting and moving structure includes: two pairs of hydraulic telescopic devices 11, hydraulic boxes 12, hydraulic pumps 13, two pairs of convex telescopic blocks 14, two pairs of universal wheels 15 and two pairs of electromagnetic telescopic locks 16; two pairs of convex lifting slots are provided on the detection platform 1, and the two pairs of convex telescopic blocks 14 are respectively It is movably inserted into the inner side of the two pairs of convex lifting grooves, the two pairs of hydraulic expanders 11 are respectively installed on the inner sides of the two pairs of convex lifting grooves, the hydraulic box 12 is installed on the testing platform 1, the hydraulic pump 13 is installed on the hydraulic box 12, and the hydraulic pump 13 is connected to the two pairs of hydraulic expanders 11, the two pairs of universal wheels 15 are respectively installed on the two pairs of convex expansion blocks 14, and the two pairs of electromagnetic expansion locks 16 are installed on the inner sides of the two pairs of convex lifting grooves; several of the concave limit support blocks 2 are respectively provided with support rubber rings; the testing platform 1 is provided with a displacement monitor; the testing platform 1 is provided with an image recorder; the testing platform 1 is provided with a control panel.

[0024] According to the attached Figure 1-3It should be noted that, in the above, the detection platform 1 on it is driven to move stably horizontally by the lifting and moving structure, and the detector on it is driven to move stably by the detection platform 1. By reaching a certain position, the lifting and moving structure is lifted and lowered, thereby changing the height of the detection platform 1. The detection platform 1 drives the lifting circular block 4 on it, and the lifting circular block 4 drives the lifting limit shaft 5 on it and the concave limit support block 2 on it. The concave limit support block 2 contacts the road surface, and the lifting ring electromagnet 8 is energized to magnetically repel the lifting ring magnet 9. The lifting ring magnet 9 drives the lifting ring block 6 on it, so that the lifting ring block 6 is located between a pair of cylindrical shaft tubes 3 on the concave limit support block 2 due to magnetic repulsion, and performs stable lifting and lowering movement. The lifting ring electromagnet 8 is magnetically adjusted by the automatic resistance regulator 10. By changing the magnetic size, The lifting and lowering circular block 4 is thereby changed to have a stable position between a pair of concave limit support blocks 2. The magnetic suspension lifting and lowering circular block 4 prevents the vibrating concave limit support block 2 from transferring the shaking kinetic energy to the lifting and lowering circular block 4. The height of the lifting and lowering circular block 4 is limited by an infrared rangefinder, and the lifting and lowering circular ring block 6 is limited by a set buffer spring. The two pairs of hydraulic telescopic devices 11 respectively drive the convex telescopic blocks 14 thereon, so that the two pairs of convex telescopic blocks 14 are stably lifted and lowered along the inner sides of the two pairs of convex lifting grooves. The two pairs of convex telescopic blocks 14 respectively drive the universal wheels 15 thereon, and the universal wheels 15 drive the detection platform 1 thereon to move stably. The convex telescopic block 14 is magnetically expanded, inserted and limited by an electromagnetic telescopic lock 16, and the liquid inside the hydraulic box 12 is drained to the inner sides of the two pairs of hydraulic telescopic devices 11 by a hydraulic pump 13.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A test bench for testing the braking equipment of a single railway vehicle, comprising: The detection platform, the detector, several concave limit support blocks, several cylindrical shaft tubes, the lifting round block, several lifting limit shafts, the lifting movement structure and the lifting buffer structure, the detector is installed on the detection platform, the lifting round block is installed on the detection platform, several concave limit support blocks are respectively movably mounted on the lifting round block, several lifting limit shafts are respectively and evenly inserted into the lifting round block, and several lifting limit shafts are respectively inserted into several concave limit support blocks, and several cylindrical shaft tubes are respectively installed on several The concave limit support blocks, and the cylindrical shaft tubes are respectively movably mounted on the lifting limit shafts, the lifting movable structure is mounted on the detection platform, and the lifting buffer structure is mounted on the concave limit support blocks, the lifting cylindrical shaft tubes and the lifting circular block, characterized in that the lifting buffer structure comprises: a plurality of lifting ring blocks, a plurality of lifting limit balls, a plurality of lifting ring electromagnets, a plurality of lifting ring magnets, batteries, a plurality of resistance automatic regulators, a plurality of infrared rangefinders and a plurality of set buffer springs; Several of the lifting ring blocks are evenly installed on the lifting circular block, and several of the lifting ring blocks are movably mounted on several of the lifting limit shafts, several of the lifting ring electromagnets are installed on the concave limit support blocks, several of the lifting ring magnets are respectively installed on several of the lifting ring blocks, several of the lifting limit balls are movably inserted on the inner and outer sides of several of the lifting ring blocks, the battery is installed on the testing platform, several of the automatic resistance regulators are respectively installed on several of the lifting ring electromagnets, several of the infrared rangefinders are respectively installed on several of the concave limit support blocks, and several of the set buffer springs are respectively mounted on several of the lifting limit shafts.

2. The test bench for testing the braking equipment of a single railway vehicle according to claim 1, characterized in that: The lifting and moving structure includes: two pairs of hydraulic telescopic devices, a hydraulic box, a hydraulic pump, two pairs of convex telescopic blocks, two pairs of universal wheels and two pairs of electromagnetic telescopic locks; Two pairs of convex lifting grooves are provided on the inspection platform, and the two pairs of convex telescopic blocks are movably inserted into the inner sides of the two pairs of convex lifting grooves. The two pairs of hydraulic expanders are respectively installed on the inner sides of the two pairs of convex lifting grooves. The hydraulic box is installed on the inspection platform, the hydraulic pump is installed on the hydraulic box, and the hydraulic pump is connected to the two pairs of hydraulic expanders. The two pairs of universal wheels are respectively installed on the two pairs of convex telescopic blocks, and the two pairs of electromagnetic telescopic locks are installed on the inner sides of the two pairs of convex lifting grooves.

3. The test bench for testing the braking equipment of a single railway vehicle according to claim 2, characterized in that: A plurality of the concave limiting support blocks are respectively provided with supporting rubber rings.

4. The test bench for testing the braking system of a single railway vehicle according to claim 3, characterized in that: A displacement monitor is provided on the detection platform.

5. The test bench for testing the braking equipment of a single railway vehicle according to claim 4, characterized in that: An image recorder is provided on the detection platform.

6. The test bench for testing the braking system of a single railway vehicle according to claim 5, characterized in that: A control panel is provided on the testing platform.

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