Damping detection and protection device for locomotive brake

Abstract

The utility model relates to the field of brake detection, and discloses a locomotive brake damping detection protection device which comprises an installation bottom plate, a locomotive brake assembly is arranged on the right side of the installation bottom plate, and a damping detection assembly used for detecting the locomotive brake assembly is fixedly installed on the left side of the installation bottom plate. A shaft seat is fixedly mounted on the left side of the mounting bottom plate, the middle of the shaft seat is movably sleeved with a driving axle, a protective shell is arranged on the left side of the mounting bottom plate, a connecting sealing pipe is fixedly mounted on the portion, close to the middle, of one side of the protective shell, and two grooves are symmetrically formed in one end of the shaft seat. Two limiting convex blocks corresponding to the grooves are movably arranged on the outer surface of the shaft seat in a penetrating mode, one end of each limiting convex block extends into the corresponding groove, according to the device, the protection shell is conveniently located and installed on one side of the installation bottom plate so as to protect the damping detection assembly, disassembly is convenient and fast, and the working convenience and efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of brake detection, in particular to a locomotive brake damping detection protection device. BACKGROUND

[0002] Train brake damping detection is an important link to ensure the safe and reliable operation of the train braking system. It mainly measures and evaluates the damping characteristics of the train brake during braking. Methods such as free vibration decay method, forced vibration method, half-power bandwidth method, and resonance amplification method are commonly used. Professional sensors such as pressure sensors, displacement sensors, and acceleration sensors are used to collect relevant data such as pressure, displacement, speed, and acceleration of the brake during braking, and then calculate the damping coefficient and other key indicators to determine whether the damping performance of the brake is within the normal range.

[0003] At the same time, the detection also considers the sound and temperature changes during braking. Abnormal sound or temperature may reflect abnormal friction or insufficient damping of the components. By combining various sensor data and these factors, it can comprehensively determine whether the braking system has damping abnormalities such as pressure fluctuations, excessive vibration, unstable displacement, etc. These results provide a basis for brake maintenance, adjustment, and fault diagnosis to ensure stable and reliable locomotive braking and ensure the safety of railway transportation.

[0004] Currently, when detecting the damping of the locomotive brake, multiple sensors are commonly used in a cooperative manner. To reduce the adverse effects of the external environment on the sensors, most existing damping detection sensors are equipped with protective shells. However, these protective shells are mostly fixed and installed through bolts. In actual operation, once the detection sensor fails and needs to be replaced or repaired, the bolted installation method makes the disassembly process very tedious, consuming a lot of time and manpower, affecting the repair efficiency, and being not conducive to the timely maintenance of the locomotive braking system and the safe operation. Therefore, a locomotive brake damping detection protection device is provided. CONTENT OF THE INVENTION

[0005] The purpose of the present application is to solve the above-mentioned problems and provide a locomotive brake damping detection protection device.

[0006] The technical scheme adopted by the present application is as follows: a locomotive brake damping detection protection device, comprising a mounting bottom plate, a locomotive brake assembly is arranged on the right side of the mounting bottom plate, a damping detection assembly for detecting the locomotive brake assembly is fixedly installed on the left side of the mounting bottom plate, an axle seat is fixedly installed on the left side of the mounting bottom plate, a driving axle is movably sleeved on the middle part of the axle seat, a protection shell is arranged on the left side of the mounting bottom plate, a connecting sealing pipe is fixedly installed on one side of the protection shell close to the middle part, two grooves are symmetrically formed in one end of the axle seat, two limiting protrusions corresponding to the grooves are movably arranged on the outer surface of the axle seat, one end of the limiting protrusion extends into the groove, a connecting moving plate is fixedly installed on the end of the limiting protrusion extending into the groove, a spring is arranged in the groove, and one end of the spring is fixed to one side of the connecting moving plate.

[0007] In a preferred embodiment, a sealing ring block is fixedly installed on the left side of the mounting bottom plate, a plurality of rectangular positioning holes are formed in the outer surface of the sealing ring block, a plurality of positioning blocks corresponding to the rectangular positioning holes are fixedly installed on the inner wall surface of the protection shell, and the positioning blocks are inserted into the rectangular positioning holes.

[0008] In a preferred embodiment, a wheel fixing plate is fixedly installed on one end of the driving axle, and a plurality of mounting holes are arrayed at equal intervals on one side of the wheel fixing plate.

[0009] In a preferred embodiment, a circular ring is fixedly installed on the outer surface of the middle part of the axle seat, and one end of the connecting sealing pipe is in contact with one side of the circular ring.

[0010] In a preferred embodiment, a sealing ring is fixedly installed on the inner wall surface of the connecting sealing pipe.

[0011] In summary, due to the adoption of the above technical scheme, the present application has the following advantages:

[0012] 1. In the present application, the positioning blocks are first aligned with the rectangular positioning holes, and the positioning blocks are inserted into the rectangular positioning holes to complete the preliminary positioning and installation of the protection shell. At this time, the axle seat is inserted into the connecting sealing pipe, and the limiting protrusions enter the grooves under the extrusion force. When the limiting protrusions correspond to the limiting holes on the connecting sealing pipe, the limiting protrusions are inserted into the limiting holes under the action of the spring, thereby fixing the protection shell and the connecting sealing pipe. The protection shell then plays a protective role on the damping detection assembly, prolonging the service life thereof. When the protection shell needs to be disassembled, the connecting moving plate only needs to be pressed and moved, and the device is convenient to disassemble, which can improve the convenience and efficiency of work. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 Fig. 1 is a schematic diagram of the overall structure of the present application;

[0014] Figure 2 Fig. 2 is a schematic diagram of the locomotive brake assembly structure of the present application;

[0015] Figure 3 Fig. 3 is a schematic diagram of the axle seat structure of the present application;

[0016] Figure 4 Fig. 4 is a schematic diagram of the protective shell uninstalled structure of the present application;

[0017] Figure 5 Fig. 5 is a schematic diagram of the wheel fixing plate structure of the present application.

[0018] Marked in the figure: 1, mounting bottom plate; 2, axle seat; 3, drive axle; 4, protective shell; 5, connecting sealing pipe; 6, groove; 7, limiting block; 8, connecting moving plate; 9, spring; 10, limiting hole; 11, sealing ring block; 12, rectangular positioning hole; 13, positioning block; 14, wheel fixing plate; 15, mounting hole; 16, circular ring; 17, sealing ring. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative labor fall within the scope of protection of the present application.

[0020] Reference Figures 1-5The utility model provides a locomotive brake damping detection protection device, including installation bottom plate 1, the right side of installation bottom plate 1 is provided with locomotive brake assembly, the left side of installation bottom plate 1 is fixedly installed with the damping detection component for detecting the locomotive brake assembly, the left side of installation bottom plate 1 is fixedly installed with axle seat 2, the middle part of axle seat 2 is movably sleeved with drive axle 3, one end of drive axle 3 is fixedly installed with wheel fixed plate 14, and a plurality of mounting holes 15 are arranged at equal intervals on one side of wheel fixed plate 14, the end of drive axle 3 away from wheel fixed plate 14 is connected with train main drive shaft, so as to facilitate the output of power, and the train wheel can be installed through the plurality of mounting holes 15 formed in wheel fixed plate 14, so as to facilitate subsequent locomotive brake assembly to brake the train wheel, realize the parking operation of locomotive, and the locomotive brake assembly is usually composed of brake cylinder, piston, push rod, brake shoe, brake beam, brake disc, return spring and brake lever system, when braking, the air pressure in brake cylinder rises, piston moves forward, the movement of piston drives push rod, push rod transmits force to brake lever system, brake lever system acts, pushes brake shoe to compress wheel tread, converts the kinetic energy of train into heat energy by the friction between the two, realizes deceleration parking, after the end of braking process, return spring plays a role, relies on the elastic force of return spring to pull back brake shoe or brake clamp to initial position, removes the pressure to wheel or brake disc, restores normal rotation of wheel, so that train continues to run,

[0021] The damping detection component includes a displacement sensor (such as a linear displacement sensor or a potentiometer), a speed sensor (such as a Hall effect sensor or a photoelectric sensor), a data acquisition unit, and a processing unit. The displacement sensor measures the displacement of the brake shoe, and the speed sensor measures the movement speed of the brake shoe. The sensors are electrically connected to the external data acquisition unit and the processing unit. The data acquisition unit acquires sensor data, and the processing unit calculates the damping value of the brake assembly according to the displacement and speed data and issues an alarm according to a preset threshold value to prompt damping abnormalities. Damping detection is achieved by analyzing the movement characteristics (displacement and speed) of the brake shoe during the release process. Excessive or insufficient damping will cause the movement curve to deviate from the normal range, and thus be detected. The above structures are disclosed in reality, so no further description is given.

[0022] Reference Figure 2 , Figure 3 and Figure 4The left side of the installation bottom plate 1 is provided with a protective shell 4, one side of the protective shell 4 is fixedly installed close to the middle part, a connecting sealing pipe 5 is fixedly installed on the left side of the installation bottom plate 1, a sealing ring block 11 is fixedly installed on the left side of the installation bottom plate 1, a plurality of rectangular positioning holes 12 are formed in the outer surface of the sealing ring block 11, a plurality of positioning blocks 13 corresponding to the rectangular positioning holes 12 are fixedly installed on the inner wall surface of the protective shell 4, and the positioning blocks 13 are inserted into the rectangular positioning holes 12; the protective shell 4 and the connecting sealing pipe 5 can be integrally manufactured, so that the overall strength and protection effect can be improved, the positioning blocks 13 are inserted into the rectangular positioning holes 12, so that the protective shell 4 can be positioned and installed on one side of the installation bottom plate 1, and the sealing ring block 11 can improve the sealing between the protective shell 4.

[0023] Reference Figure 2 , Figure 3 and Figure 4 , the outer surface of the shaft seat 2 is fixedly installed with a circular ring 16 close to the middle part, one end of the connecting sealing pipe 5 is in contact with one side of the circular ring 16, and a sealing ring 17 is fixedly installed on the inner wall surface of the connecting sealing pipe 5; when the shaft seat 2 passes through the middle part of the connecting sealing pipe 5, one end of the connecting sealing pipe 5 is in contact with one side of the circular ring 16, so that the sealing property can be improved, and the sealing ring 17 can further improve the waterproof effect between the shaft seat 2 and the connecting sealing pipe 5.

[0024] Reference Figure 1 , Figure 3 , two grooves 6 are symmetrically formed in one end of the shaft seat 2, two limiting protrusions 7 corresponding to the grooves 6 are movably arranged on the outer surface of the shaft seat 2, one end of the limiting protrusion 7 extends into the groove 6, and a connecting moving plate 8 is fixedly installed at one end of the limiting protrusion 7 extending into the groove 6; the connecting moving plate 8 is arranged, so that the limiting protrusion 7 can be moved in the groove 6.

[0025] Reference Figure 1 , Figure 2 and Figure 3 , a spring 9 is arranged in the groove 6, one end of the spring 9 is fixed to one side of the connecting moving plate 8, and a limiting hole 10 corresponding to the limiting protrusion 7 is formed in the inner wall surface of the connecting sealing pipe 5; the spring 9 is arranged, so that the limiting protrusion 7 can be reset, and then the limiting protrusion 7 can be inserted into the limiting hole 10 to install the protective shell 4.

[0026] The implementation principle of the locomotive brake damping detection protection device embodiment of the application is as follows: when the locomotive brake damping detection assembly needs to be protected, personnel first hold the protection shell 4, align the positioning block 13 with the rectangular positioning hole 12, and then insert the positioning block 13 into the rectangular positioning hole 12 to complete the preliminary positioning installation of the protection shell 4. At this time, the shaft seat 2 is inserted into the connecting sealing pipe 5, thereby protecting the damping detection assembly installed on one side of the mounting bottom plate 1 inside, which can effectively avoid damage to the sensor in the damping detection assembly caused by external object collision or other factors;

[0027] When the shaft seat 2 is inserted into the connecting sealing pipe 5, the bottom end of the connecting sealing pipe 5 is in contact with the limiting protrusion 7. Since one end of the limiting protrusion 7 and the bottom end of the connecting sealing pipe 5 are both arc-shaped structures, the limiting protrusion 7 enters the groove 6 under the extrusion force. When the limiting protrusion 7 corresponds to the limiting hole 10 on the connecting sealing pipe 5, the limiting protrusion 7 is inserted into the limiting hole 10 under the action of the spring 9, thereby fixing the protection shell 4 and the connecting sealing pipe 5, and further making the protection shell 4 play a protective role on the damping detection assembly and prolong the service life thereof. When the protection shell 4 needs to be disassembled, the connecting moving plate 8 only needs to be pressed and moved, and the protection shell 4 of the device is convenient to position and install on one side of the mounting bottom plate 1 to protect the damping detection assembly, and is convenient to disassemble, which can improve the convenience and efficiency of work.

[0028] The above embodiments are only used to illustrate the technical solutions of the application, rather than limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A locomotive brake drag detection protection device comprising a mounting base plate (1) characterised in that: The right side of mounting base (1) is provided with locomotive brake assembly, the left side of mounting base (1) is fixedly provided with damping detection assembly for detecting locomotive brake assembly, the left side of mounting base (1) is fixedly provided with axle seat (2), the middle part of axle seat (2) is movably sleeved with driving axle (3), the left side of mounting base (1) is provided with protective shell (4), one side of protective shell (4) is fixedly provided with connecting sealing pipe (5) near the middle part, one end of axle seat (2) is symmetrically provided with two grooves (6), the outer surface of axle seat (2) is movably provided with two limiting protrusions (7) corresponding to groove (6), one end of limiting protrusion (7) extends to the inside of groove (6), one end of limiting protrusion (7) extending to the inside of groove (6) is fixedly provided with connecting moving plate (8), the inside of groove (6) is provided with spring (9), one end of spring (9) is fixed with one side of connecting moving plate (8), the inner wall surface of connecting sealing pipe (5) is provided with limiting hole (10) corresponding to limiting protrusion (7).

2. A locomotive brake drag detection protection device as defined in claim 1 wherein: The left side of mounting base (1) is fixedly provided with sealing ring block (11), the outer surface of sealing ring block (11) is provided with a plurality of rectangular positioning holes (12), the inner wall surface of protective shell (4) is fixedly provided with a plurality of positioning blocks (13) corresponding to rectangular positioning hole (12), positioning block (13) is inserted into the inside of rectangular positioning hole (12).

3. A locomotive brake drag detection protection device as defined in claim 1 wherein: One end of driving axle (3) is fixedly provided with wheel fixing plate (14), one side of wheel fixing plate (14) is provided with a plurality of mounting holes (15) at equal intervals.

4. A locomotive brake drag detection protection device as defined in claim 1 wherein: The outer surface of axle seat (2) near the middle part is fixedly provided with circular ring (16), one end of connecting sealing pipe (5) is in contact with one side of circular ring (16).

5. A locomotive brake drag detection protection device as defined in claim 1 wherein: The inner wall surface of connecting sealing pipe (5) is fixedly provided with sealing ring (17).

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