Brake cylinder band-type brake slow-speed structure of steel rail grinding wagon

Abstract

The utility model discloses a band-type brake slow-down structure of a brake cylinder of a steel rail grinding wagon, which relates to the technical field of band-type brake slow-down of the brake cylinder of the steel rail grinding wagon and comprises a mounting bracket, a slow-down air cylinder fixedly mounted on the mounting bracket, a push plate component fixedly mounted on a piston rod of the slow-down air cylinder, and the push plate component is mounted in the mounting bracket in a sliding manner at the same time. The pushing plate assembly is composed of a supporting base plate and a rubber protection pad, the rubber protection pad is fixedly installed at the upper end of the supporting base plate, and four supporting balls are symmetrically and rotationally installed on the supporting base plate. The piston rod of the quick buffering air cylinder can be used for pushing the pushing plate assembly, then the pushing plate assembly is used for jacking back a hook of the brake cylinder assembly, quick forced buffering is achieved, finally the labor intensity of workers can be reduced, the time used in the buffering process is short, the working efficiency can be improved, and the accident occurrence probability is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of brake cylinder brake holding speed slow of rail grinding car, and particularly relates to brake cylinder brake holding speed slow structure of rail grinding car. BACKGROUND

[0002] Rail grinding car can utilize high-speed rotating grinding wheel to grind the surface of rail head in the process of constant low-speed operation, can preventively grind new rail, removes surface rust and decarburization layer etc., can repairively grind old rail on line, eliminates wave abrasion and surface microcrack etc., and simultaneously perfects the surface profile of rail. Through the grinding of railway rail, on the one hand, the wheel-rail interaction can be significantly improved, and the train operation quality and passenger comfort can be improved; on the other hand, the development of rail disease can be prevented, and the service life of rail can be prolonged. Rail grinding car adopts the form of unit brake cylinder, and has design defects. If train pipe leaks air or bursts, brake cylinder brake holding will be caused, and when there is no other emergency method, only the self-brought U-shaped tool of mechanical forced relief can be used, the screwing mode of manual labor is needed to overcome the spring pressure of 420 kilopascals, and the hook of brake cylinder is slowly topped back to realize forced relief. The process is relatively complicated and laborious, thereby the labor intensity of workers can be improved, and the process takes a long time, so that if it occurs in construction operation or high-speed operation, the operation time and scheduled operation time will be seriously affected, and even train equipment accidents can be caused, therefore, brake cylinder brake holding speed slow structure of rail grinding car is needed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0003] The main purpose of the utility model is to provide brake cylinder brake holding speed slow structure of rail grinding car, which can effectively solve the problems in the background art.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0005] The brake cylinder brake holding speed slow structure of rail grinding car comprises a mounting bracket, a speed slow cylinder is fixedly installed on the mounting bracket, a push plate assembly is fixedly installed on the piston rod of the speed slow cylinder, the push plate assembly is simultaneously slidably installed in the mounting bracket, the push plate assembly is composed of a supporting base plate and a rubber protection pad, the rubber protection pad is fixedly installed at the upper end of the supporting base plate, four supporting balls are symmetrically rotatably installed on the supporting base plate, two limiting guide assemblies are symmetrically fixedly installed at the two ends of the supporting base plate, the limiting guide assembly is composed of a mounting block, a rotating shaft and a supporting roller, the rotating shaft is rotatably installed in the mounting block, and the supporting roller has two and is symmetrically rotatably installed on the rotating shaft.

[0006] Preferably, the mounting bracket is composed of a U-shaped frame and a mounting fixed plate, the mounting fixed plate has two and is symmetrically fixedly installed at the two ends of the U-shaped frame, and two guide groove are symmetrically formed in the two side walls of the U-shaped frame.

[0007] Preferably, the mounting fixed plate is simultaneously fixed and mounted on the lower end of the mounting base plate, and the upper end of the mounting base plate is fixedly mounted with the brake cylinder assembly.

[0008] Preferably, the speed-reducing cylinder is fixedly mounted on the inner wall of the U-shaped frame, and the piston rod of the speed-reducing cylinder faces upwards.

[0009] Preferably, the pushing plate assembly is movably mounted in the two guide rail grooves of the U-shaped frame, and the pushing plate assembly does not contact the U-shaped frame, the supporting base plate is fixedly mounted on the upper end of the piston rod of the speed-reducing cylinder, and four spherical grooves are symmetrically formed in the two ends of the supporting base plate.

[0010] Preferably, the supporting ball is rotatably mounted in the spherical groove, and the supporting ball contacts the U-shaped frame, the mounting block on the limiting guide assembly is fixedly mounted on one end of the supporting base plate, the mounting groove is formed in the mounting block, the rotating shaft is rotatably mounted in the mounting groove, and the supporting roller contacts the end surface of the U-shaped frame.

[0011] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0012] By setting the speed-reducing cylinder on the mounting support and setting the pushing plate assembly on the piston rod of the speed-reducing cylinder, the piston rod of the speed-reducing cylinder can be used to push the pushing plate assembly, the hook bead of the brake cylinder assembly can be pushed back by the pushing plate assembly, the quick forced relief is realized, the labor intensity of the workers can be reduced, the relief process takes a short time, the working efficiency can be improved, and the accident occurrence probability can be reduced; by setting the supporting ball and the limiting guide assembly, the pushing plate assembly can be limited and guided, the pushing plate assembly can accurately push the hook bead of the brake cylinder assembly, the moving resistance of the pushing plate assembly is small, and thus the energy consumption of the brake cylinder brake slow-down can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility model;

[0014] Figure 2 It is a position relation structure schematic view of the mounting support and the speed-reducing cylinder of the utility model;

[0015] Figure 3 It is a structure schematic view of the limiting guide assembly and the pushing plate assembly after being split of the utility model;

[0016] Figure 4 It is a structure schematic view of the supporting base plate and the mounting block after being split of the utility model.

[0017] In the figure: 1, mounting bracket; 2, speed brake cylinder; 3, push plate assembly; 4, limit guide assembly; 5, mounting base plate; 6, brake cylinder assembly; 7, U-shaped frame; 8, mounting fixed plate; 9, guide rail groove; 10, support base plate; 11, rubber protection pad; 12, spherical groove; 13, support ball; 14, mounting block; 15, mounting groove; 16, rotating shaft; 17, support rotating roller. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0019] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 It is shown that the brake cylinder brake speed brake structure of the rail grinding car comprises a mounting bracket 1, the mounting bracket 1 is fixedly installed with a speed brake cylinder 2, the piston rod of the speed brake cylinder 2 is fixedly installed with a push plate assembly 3, the push plate assembly 3 is simultaneously slidably installed in the mounting bracket 1, the push plate assembly 3 is composed of a support base plate 10 and a rubber protection pad 11, the rubber protection pad 11 is fixedly installed at the upper end of the support base plate 10, four support balls 13 are symmetrically rotatably installed on the support base plate 10, two limit guide assemblies 4 are symmetrically fixedly installed at the two ends of the support base plate 10, the limit guide assembly 4 is composed of a mounting block 14, a rotating shaft 16 and a support rotating roller 17, the rotating shaft 16 is rotatably installed in the mounting block 14, the support rotating roller 17 has two and is symmetrically rotatably installed on the rotating shaft 16, the mounting bracket 1 is composed of a U-shaped frame 7 and a mounting fixed plate 8, the mounting fixed plate 8 has two and is symmetrically fixedly installed at the two ends of the U-shaped frame 7, two guide rail grooves 9 are symmetrically formed in the two side walls of the U-shaped frame 7, the mounting fixed plate 8 is simultaneously fixedly installed at the lower end of the mounting base plate 5 through bolts, the upper end of the mounting base plate 5 is fixedly installed with a brake cylinder assembly 6, when in use, the speed brake cylinder 2 needs to be connected with the air cylinder, when the brake cylinder brake speed brake is needed, the speed brake cylinder 2 can be started, so that the piston rod of the speed brake cylinder 2 moves the push plate assembly 3 to the hook bead of the brake cylinder assembly 6, finally the hook bead is returned, the quick forced relief is realized, and then the push plate assembly 3 is reset by using the speed brake cylinder 2.

[0020] Thus, by arranging the speed reduction cylinder 2 on the mounting bracket 1, arranging the push plate assembly 3 on the piston rod of the speed reduction cylinder 2, the piston rod of the speed reduction cylinder 2 can push the push plate assembly 3, and then the push plate assembly 3 can push the hook back of the brake cylinder assembly 6, so that the brake cylinder assembly 6 can be forced to release quickly, the labor intensity of the workers can be reduced, the working efficiency can be improved, the probability of accidents can be reduced, and the energy consumption of the brake cylinder can be reduced.

[0021] Specifically, the speed reduction cylinder 2 is fixedly installed on the inner wall of the U-shaped frame 7, the piston rod of the speed reduction cylinder 2 faces upward, the push plate assembly 3 is movably installed in the two guide groove 9 arranged on the U-shaped frame 7, and the push plate assembly 3 does not contact the U-shaped frame 7, the support base plate 10 is fixedly installed on the upper end of the piston rod of the speed reduction cylinder 2, four spherical grooves 12 are symmetrically arranged at the two ends of the support base plate 10, and when the piston rod of the speed reduction cylinder 2 drives the push plate assembly 3 to move, the push plate assembly 3 can slide in the guide groove 9.

[0022] Specifically, the support ball 13 is rotatably installed in the spherical groove 12, the support ball 13 contacts the U-shaped frame 7, the mounting block 14 on the limiting guide assembly 4 is fixedly installed at one end of the support base plate 10, the mounting groove 15 is arranged on the mounting block 14, the rotating shaft 16 is rotatably installed in the mounting groove 15, the support rotating roller 17 contacts the end face of the U-shaped frame 7, when the piston rod of the speed reduction cylinder 2 drives the push plate assembly 3 to move, the U-shaped frame 7 on the mounting bracket 1 can be limited and guided by the cooperation of the support ball 13 and the limiting guide assembly 4, so that the push plate assembly 3 can accurately push the hook back of the brake cylinder assembly 6, and when the push plate assembly 3 moves, the support ball 13 can frictionally rotate with the U-shaped frame 7, and the support rotating roller 17 on the limiting guide assembly 4 can also frictionally rotate with the U-shaped frame 7.

[0023] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. The protection scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rail grinding brake cylinder brake holding speed structure comprising a mounting bracket (1), characterized in that: The mounting bracket (1) is fixedly installed with a speed buffer cylinder (2), the piston rod of the speed buffer cylinder (2) is fixedly installed with a push plate assembly (3), the push plate assembly (3) is slidably installed in the mounting bracket (1), the push plate assembly (3) is composed of a supporting base plate (10) and a rubber protection pad (11), the rubber protection pad (11) is fixedly installed at the upper end of the supporting base plate (10), four supporting balls (13) are symmetrically rotatably installed on the supporting base plate (10), two limiting guide assemblies (4) are symmetrically fixedly installed at the two ends of the supporting base plate (10), the limiting guide assembly (4) is composed of a mounting block (14), a rotating shaft (16) and a supporting rotating roller (17), the rotating shaft (16) is rotatably installed in the mounting block (14), and the supporting rotating roller (17) is two and is symmetrically rotatably installed on the rotating shaft (16).

2. The rail grinder brake cylinder drag brake structure of claim 1, wherein: The mounting bracket (1) is composed of a U-shaped frame (7) and a mounting fixed plate (8), the mounting fixed plate (8) is two and is symmetrically fixedly installed at the two ends of the U-shaped frame (7), and two guide rail grooves (9) are symmetrically formed in the two side walls of the U-shaped frame (7).

3. The rail grinder brake cylinder drag brake retarding structure of claim 2 wherein: The mounting fixed plate (8) is fixedly installed at the lower end of the mounting base plate (5) through bolts, and the brake cylinder assembly (6) is fixedly installed at the upper end of the mounting base plate (5).

4. The brake cylinder brake slow structure of the rail grinding machine according to claim 3, characterized in that: The speed buffer cylinder (2) is fixedly installed on the inner wall of the U-shaped frame (7), and the piston rod of the speed buffer cylinder (2) faces upwards.

5. The rail grinder brake cylinder drag brake retarding structure of claim 4 wherein: The push plate assembly (3) is movably installed in the two guide rail grooves (9) formed in the U-shaped frame (7), and the push plate assembly (3) does not contact the U-shaped frame (7), the supporting base plate (10) is fixedly installed at the upper end of the piston rod of the speed buffer cylinder (2), and four spherical grooves (12) are symmetrically formed at the two ends of the supporting base plate (10).

6. The rail grinder brake cylinder drag brake structure of claim 5, wherein: The supporting balls (13) are rotatably installed in the spherical grooves (12), and the supporting balls (13) contact the U-shaped frame (7), the mounting block (14) of the limiting guide assembly (4) is fixedly installed at one end of the supporting base plate (10), an installation groove (15) is formed in the mounting block (14), the rotating shaft (16) is rotatably installed in the installation groove (15), and the supporting rotating roller (17) contacts the end face of the U-shaped frame (7).

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