CN201511976U - Brake beam of railway hump vehicle speed reducer - Google Patents

Abstract

A novel brake beam of a railway hump vehicle speed reducer comprises three parts including a brake beam base beam 1, a rubber pad 2 and an abrasion clamping plate 3, the three parts are linked together by bolts; the external installation size after the assembly is the same as the traditional brake rail used greatly at the present; the novel brake beam is compatible with the great amount of the existing equipment, and meets the relative limit standards of the ministry of railways. The base beam is formed through assembling and welding steel plates, the production technique is simple, no abrasion appears during the use process, and the service life is long. The novel brake beam adopts the structure including the rubber pad and the section type abrasion clamping plate, thereby preventing the formation of the high-frequency noise. The abrasion clamping plate can use combination of materials having different properties to achieve different braking effects. The light section type abrasion clamping plate with light weight can be installed and replaced conveniently. The brake beam adopting the form can replace the traditional brake rail, and avoids the defects of the traditional brake rail, such as different production, short abrasion life, entire scrap and too high brake noise.

Description

A kind of hump vehicle speed reducer brake beam

Technical field

The utility model relates to a kind of parts of hump yard car retarder, the skating vehicle speed control device that is used for the railway hump switching field, replace original braking rail that processes with Standard Guage, a platform structure that has noise reduction itself is provided, can installs braking clamping plate additional into the different materials of various objectives exploitation.

Background technology

The present most of hump vehicle speed reducer of China is floating rail gravity clamp type retarder, its principle is the lateral pressure that vehicle gravity is changed into brake clamp through leverage, and through the side pressurization friction of braking rail (or brake beam) to wheel of vehicle, thereby the generation friction moment is braked vehicle.

Traditional car retarder braking rail, be (the seeing accompanying drawing 1) that adopts the 60kg/m rail of railway standard to process, advantage is that material source is abundant, but there are 3 problems in this scheme: after (1) whole rail wear sub-fraction (see in the accompanying drawing 2 1), will be because of the restriction of mechanism size, and the reduction of intensity, and arrive operating limit.Will integral body scrap after arriving operation limit.At busy station, the time about half a year can only be used in the position at interval.Degree of utilization is low, and waste is serious; (2) processing of traditional braking rail is relatively more difficult.Rail hardness height, entire length long (about 7～12m), for the protective material metallographic structure with prevent the consideration of stress concentration, can not adopt hot worked way to handle, so, when the part of processing foot (see in the accompanying drawing 2 2), must adopt production machine to mill or dig, production has high input, and processing capacity is big, and efficient is low; (3) rail material have only very limited several, its material composition and hardness, all very similar to the wheel of rolling stock.In the car retarder braking procedure, can produce very large noise, become the crucial source of pollution of marshaling yard pollution from environmental noise.

In view of the defective that above-mentioned known technology exists, the design people has proposed hump vehicle speed reducer brake beam of the present utility model at the problem of above-mentioned existence.

Through China Intellectual Property Office's patent retrieval, do not find the patent of similar content.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of new hump yard retarder brake beam, it is characterized in that it is made up of Ji Liang, rubber tie plate and abrasion clamping plate three parts, three parts are with Bolt Connection, outside installation dimension after its assembling and use part, compatible existing large number quipments meets the relevant gauge standard of the Ministry of Railways.

Ji Liang of the present utility model with welding performance preferably the steel plate materials assembly welding form, design by variable section, its bending strength is higher than traditional braking rail, because Ji Liang does not have abrasion in use, when the abrasion clamping plate wear away limit, only change clamping plate, basic beam is motionless, so can prolong greatly its service life, economical with materials.

The processing of Ji Liang can be resolved into the short group welding piece of length, guarantees to need not or processing on a small quantity after the welding by frock, so production facilities is simple, and good manufacturability, production efficiency height.

The rubber tie plate that the utility model uses can be high shearing resistance pressure-resistant rubber, perhaps rubber-metal plate array configuration, and significant feature is the vibrational energy that absorbs the braking clamping plate, prevents the formation of high frequency noise.

The abrasion clamping plate that the utility model uses, it can be sectional type plintlet for the special material of different target (as keeping stable friction factor under the profit condition, reducing noise etc.) exploitation, clamping plate segmentation compound rubber backing plate can effectively reduce the frequency and the noise decibel value of noise.That is to say that even material is constant, adopt brake beam form of the present utility model, its noise also can reduce.

On the other hand, because sectional splint is in light weight, when wearing away the limit replacing, needn't employ a lot of people or large-scale hoisting machinery, it is very convenient to construct.

Description of drawings

Fig. 1 is the traditional braking rail, and Fig. 2 is the A-A section of braking rail Fig. 1, and Fig. 3 is the utility model brake beam, and Fig. 4 is the B-B section of brake beam Fig. 3.Can see that both outside consistent size that connect for increasing brake beam intensity, have increased the sectional area of beam between fulcrum.

Among Fig. 4,1 is Ji Liang, and 2 is rubber tie plate, and 3 are the abrasion clamping plate.

Fig. 5 is installed in erection plan on the car retarder for the utility model brake beam, and 1 is the retarder brake clamp, and 2 is Ji Liang, and 3 is high strength bolt, and 4 is the brake beam attachment bolt, and 5 is rubber tie plate, and 6 are the abrasion clamping plate.

The specific embodiment

Concrete structure below in conjunction with accompanying drawing and most preferred embodiment " the hump skating vehicle is prevented hypervelocity equipment " model machine is further described.

Fig. 1, Fig. 2 are traditional braking rail birds-eye view and section-drawing, and the part of 1 permission abrasion wears away limit in the section-drawing 2, and this braking rail is that integral body is scrapped, thereby causes very big waste; 2 for processing the part of removing from the standard rail in the section-drawing 2, can see that this part processing capacity is bigger, and because length reaches 7～12m, material is the hot-cured high-carbon steel, and the hardness height needs production machine, dedicated tool processing, and the depth of cut is very little.Have high input so produce, efficient is low.

Fig. 3, Fig. 4 are birds-eye view of the present utility model and section-drawing, and from section-drawing 4, contrast section-drawing 2 can be seen, the outside shape and size that connect are consistent with the traditional braking rail.Can also see that brake beam is divided into 3 parts: 1 is Ji Liang, and 2 is rubber tie plate, and 3 are the abrasion clamping plate.

Fig. 4 base beam 1 is a long beam, its length, termination shape, hold-down bolt hole dimension etc., identical with the traditional braking rail, but, because the strength of material of welding steel is lower than rail, so, on the space between the fulcrum, adopt the form of variable section to strengthen,, reach the effect that reduces application stress by increasing the bending resistant section coefficient.The processing of Ji Liang is to form by group welding piece welding different in size, and the processing of these group welding pieces is with respect to the traditional braking rail, much easier.By the assurance of frock, after the assembly welding, can reach operating needs through alignment process, so, whole processing technology, fairly simple, production drops into little, the efficient height.In addition,, on the contact surface of Ji Liang and abrasion clamping plate, also welded a fixed strip, be used for the location of clamping plate, and guarantee that bolt is not sheared for guaranteeing the secure fixation of abrasion clamping plate on Ji Liang.

Between Fig. 4 Ji Liang and the abrasion clamping plate, rubber tie plate 2 has been installed.The effect of this backing plate is that the energy of high-frequency vibration suppresses the formation of high frequency noise when absorbing car retarder braking clamping plate and wheel friction.Simultaneously, this rubber tie plate also has when preventing to wear away clamping plate and contacting with wheel, and the phenomenon that local stress is excessive also has the effect that prevents that clamping plate are cut.The material of rubber tie plate can be that rubber adds knitting, perhaps the form of rubber and sheet steel combination.

It is the parts that have been specifically designed to brake drag effect in the structure that Fig. 4 wears away clamping plate 3, and used material can be very flexible, both can be single metallo-, also can be metal-non-metal combination, depends primarily on developer's various objectives.Certainly, be subjected to the restriction of applying working condition, all there is certain requirement aspects such as the hardness of material, resistance to abrasion and anti-shearing, to guarantee its rational service life.Configuration aspects, the abrasion clamping plate should be segmentation structure, every joint is (on the brake beam birds-eye view, the spacing in a pair of hold-down bolt hole) within, be divided into about 3 sections this segmentation form, the structure of bound rubber backing plate, can effectively reduce the formation of high frequency noise and the continuity of noise, thereby reduce noise emission (this point has verification experimental verification).The structure of sectional splint also has a benefit, is exactly in light weight, and convenient transportation and installation needn't be employed a lot of people or large-scale hoisting machinery, and it is very convenient to construct.

Claims (1)

1. hump yard car retarder brake beam, this assembly has: have identical outside to connect size with the braking rail that is processed into by the standard rail; Brake beam is made up of three parts: Ji Liang, rubber tie plate, abrasion clamping plate; Ji Liang is welded by steel plate; Rubber tie plate is rubber or rubber and sheet steel array configuration; The abrasion clamping plate are sectional type, and material is metal, non-metal or its array configuration, it is characterized in that:

Base beam assembly welding forms, the variable section design;

The unitized construction of whole Ji Liang, rubber tie plate and sectional type abrasion clamping plate;

After the abrasion clamping plate wear away limit, only change the abrasion clamping plate.

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