CN103241263A

CN103241263A - Active release device

Info

Publication number: CN103241263A
Application number: CN2013101360527A
Authority: CN
Inventors: 李志强; 张显锋; 潘树平; 王爱民; 王璞; 吴畅; 王云贵
Original assignee: CSR Meishan Rolling Stock Co Ltd
Current assignee: CRRC Meishan Co Ltd
Priority date: 2013-04-18
Filing date: 2013-04-18
Publication date: 2013-08-14
Anticipated expiration: 2033-04-18
Also published as: CN103241263B

Abstract

The invention relates to an accessory of a railway vehicle, in particular to a release device of a braking system of a bogie of a railway truck. The braking system is provided with a basic braking device with slide grooves, sliders and bow braking beams. The release device comprises a spring mounting seat and an extension spring assembly, and is technically characterized in that one end of the spring mounting seat is a mounting end, and the other end of the spring mounting seat is a connecting end; and two connecting plates are respectively arranged at two ends of the extension spring assembly, one end of each connecting plate is connected with the spring mounting seat, a spring is mounted at the other end of each connecting plate, and the springs include an outer helical extension spring and an inner helical extension spring which are connected with each other in parallel to form the spring assembly. The release device has the advantages that the release device is simple and reliable in structure and convenient to install; the extension springs are stretched under the action of tension when the truck is braked; when the truck is released, the braking beams not only release braking due to the action of the gravity of the braking beams, but also are driven to move in pre-braking modes under rebounding actions of the extension springs, so that a brake shoe of the truck is separated from a wheel, and the braking beams can actively release braking.

Description

A kind of active relieving apparatus

Technical field:

The present invention relates to a kind of railway vehicle accessory, especially the dress relieving apparatus of the railway goods train bogie brake system of the arc brake beam foundation brake rigging of chute slide block type.

Background technology:

The railway truck release of brake is bad to be to perplex the inertial mass problem that railway truck uses for a long time with " band-type brake " fault.Railway goods train bogie, especially adorn the railway goods train bogie with the arc brake beam foundation brake rigging of chute slide block type, because the restriction of its foundation brake rigging self structure, alleviating advocates to rely on the brake equipment self gravitation to realize at the component of chute direction, often be subjected to the influence of various sum of errors friction face states, alleviation power is not enough to overcome resistance, cause brake shoe and wheel can not break away from or break away from not exclusively, cause " band-type brake " and release of brake bad error, railway operation safety is caused bigger infringement, and become a risk source of railway truck potential safety hazard.Therefore, rolling stock department wishes to adopt a kind of simple and reliable mechanism, solves bad and " band-type brake " problem of railway truck release of brake.

Summary of the invention:

The problem to be solved in the present invention provides a kind of simple in structure, reliable at the problems referred to above exactly, and the brake beam that can make easy for installation is initiatively implemented a kind of device of alleviating.Its technical scheme is as follows:

It comprises spring mounting seat and extension spring group, its gordian technique is that spring mounting seat one end is installation end, the other end is coupling end, installation end and coupling end are trench structure, the trench structure above and below of installation end has corresponding mounting hole, and the trench structure above and below of coupling end has corresponding connecting bore; Respectively there is a connecting panel at extension spring group two ends, connecting panel one end links to each other with spring mounting seat, other end mounting spring, spring composes in parallel spring assembly by stretch outer coil spring and the interior coil spring that stretches, have hole and groove at the connecting panel other end, stretching cylindrical both ends of the spring has the length of 2～3 circles, the interior coil spring two ends that stretch to have the length of 4～5 circles to pass hole and the groove of offering on the connecting panel respectively respectively.

Compared with prior art the present invention has following beneficial effect:

1, the extension spring group has certain rigidity, when car brakeing, the both sides brake beam is towards the wheel direction motion of each My World, brake shoe and flanging, spring assembly is subjected to the pulling force effect and stretches, adjust the installation site (initial length) of spring, the minimum stretch power that setting spring is subjected to guarantees that vehicle is subjected to certain pulling force and certain stroke that stretches at new wheel when the extension spring group is in car brakeing during to, new brake shoe.When vehicle was alleviated, the recuperability of release spring group just provided an active force towards the motion of bogie truck longitudinal center for brake beam, works with the component one of brake beam gravity in bogie side frame chute direction, impelled brake beam to alleviate.

2, the recuperability minimum of spring assembly when new wheel, new brake shoe, along with wheel wear and brake shoe abrasion, the spring assembly recuperability can progressively increase, and the more big brake beam that more is beneficial to of recuperability is alleviated.But the spring assembly pulling force upper limit is not influence the bogie truck normal brake application.

3, be vertically arranged with the connecting bore of diverse location with the spring mounting seat upper edge extension spring of brake beam riveted joint, along with the installation site of spring is adjusted in the abrasion of wheel, can guarantee that vehicle has the spring tensile force of identical size (scope) under different wheel abrasion state.

4, the extension spring group adopts the spring of inside and outside different rotation directions, strengthened the reliability of spring, even another root spring can also work on when certain root spring et out of order, simultaneously can support the fault spring and do not cause the fault spring to come off and cause the vehicle driving safety failure.

5, stretching cylindrical both ends of the spring 2～3 circle, interior coil spring two ends 4～5 circles are worn and are hung in the hole that processes on the connecting panel, and what reduced traditional extension spring shackle place uses and install stress, have adapted to the operation environment of railway truck, improve the serviceability of spring.

Description of drawings:

Fig. 1 is spring mounting seat structural representation of the present invention;

Fig. 2 is extension spring group structural representation of the present invention;

Fig. 3 is the scheme of installation of the present invention on roller bearing adapter stabilizer bar.

The specific embodiment:

Referring to Fig. 1～Fig. 3, the present invention includes spring mounting seat 1 and extension spring group, its gordian technique is that spring mounting seat 1 one ends are installation end 8, the other end is coupling end 7, installation end 8 and coupling end 7 are trench structure, the trench structure above and below of installation end 8 has corresponding mounting hole 5, and the trench structure above and below of coupling end 7 has corresponding, many connecting bores 6 different to the position, can select suitable connecting bore according to the different conditions of vehicle.During different phases such as different conditions refers to mainly that vehicle is newly made, shed repair and repair in shop, the bogie car wheel diameter varies in size.According to the abrasion situation of wheel, select the mounting hole of diverse location, general new wheel adopts away from the bogie pivot center side opening, along with the abrasion situation of wheel progressively adopts near the bogie pivot center side opening.Respectively there is a connecting panel 2 at extension spring group two ends, connecting panel 2 one ends link to each other by connecting bore 6 with spring mounting seat 1, other end mounting spring, spring composes in parallel spring assembly by stretch outer coil spring 3 and the interior coil spring 4 that stretches, have hole and groove at connecting panel 2 other ends, outer coil spring 3 two ends that stretch have the length of 2～3 circles, interior coil spring 4 two ends that stretch to have the length of 4～5 circles to pass hole and the groove of offering on the connecting panel 2 respectively respectively.Can guarantee that like this spring assembly and connecting panel 2 are connected firmly, reduce the stress level of point of connection simultaneously, improve the reliability of spring assembly.Coil spring 4 is seated in outer coil spring 3 inside that stretch in stretching; the outer coil spring 3 that stretches is opposite with the rotation direction of the interior coil spring 4 that stretches; can either bear certain tensile force, restoring force like this, play a protective role each other simultaneously, improve the safety in utilization of this device.

Spring mounting seat 1 one ends adopt railway to be riveted on the T word beam outer wing of brake beam 10 with pultrusion rivet 11, light round pin 12, the extension spring group is installed between the two arc brake beams of railway goods train bogie 9, makes extension spring be subjected to the pulling force effect when car brakeing and stretches.And when vehicle was alleviated, brake beam was except implementing alleviation owing to the self gravitation effect, and extension spring reactivation at this moment also drives brake beam to move towards implementing the preceding state of braking, impelled the disengaging of vehicle brake shoe and wheel, realized alleviating.

Claims

1. relieving apparatus initiatively, comprise spring mounting seat (1) and extension spring group, it is characterized in that spring mounting seat (1) one end is installation end (8), the other end is coupling end (7), installation end (8) and coupling end (7) are trench structure, the trench structure above and below of installation end (8) has corresponding mounting hole (5), and the trench structure above and below of coupling end (7) has corresponding connecting bore (6); Respectively there is a connecting panel (2) at extension spring group two ends, connecting panel (2) one ends link to each other with spring mounting seat (1), other end mounting spring, spring composes in parallel spring assembly by stretch outer coil spring (3) and the interior coil spring (4) that stretches, have hole and groove at connecting panel (2) other end, outer coil spring (3) two ends that stretch have the length of 2～3 circles, interior coil spring (4) two ends that stretch to have the length of 4～5 circles to pass hole and the groove of offering on the connecting panel (2) respectively respectively.

2. according to the described active relieving apparatus of claim 1, the interior coil spring (4) that it is characterized in that stretching is seated in outer coil spring (3) inside that stretches, and the rotation direction of stretch outer coil spring (3) and the interior coil spring (4) that stretches is opposite.