CN2283597Y

CN2283597Y - Stock wheel pair back pressure device

Info

Publication number: CN2283597Y
Application number: CN 96225870
Authority: CN
Inventors: 胡彭年; 朱智勇; 唐关达; 廖鹏辉; 陈光满
Original assignee: DALIAN ROLLING STOCK PLANT
Current assignee: DALIAN ROLLING STOCK PLANT
Priority date: 1996-04-09
Filing date: 1996-04-09
Publication date: 1998-06-10
Anticipated expiration: 2006-04-09

Abstract

The utility model discloses a stock wheel pair back pressure device, comprising a base. The front half part of the base is paved with a guide rail and a movable trolley and the rear half part is fixedly provided with an oil-cylinder support and a rear support. The oil-cylinder support is provided with an oil-cylinder body whose interior is provided with a piston rod with a piston. The extending end of the piston rod and the hole of the rear support are provided with a shaft. The position of the shaft which closes to the piston rod is sheathed with a spherical cushion ring, a connecting body and a movable shield ring in sequence rearwards. The shaft passes through a positioning component and the oil-cylinder support and is fixed to the draw rod of the connecting body. The positioning component is fixed on the front cover of the oil-cylinder body. The front end of the draw rod is inserted with a key pin and a protective sheath. The rear end of the draw rod is provided with a nut which is matched with the draw rod. The device can enhance the assembled quality and the work efficiency of the wheel pair.

Description

Railway vehicle wheel is to the back-pressure device

The utility model relates to a kind of railway vehicle wheel to the back-pressure device, is specially adapted to railway vehicle wheel to the detection of assembling firm degree or take turns right dismounting.

In the fitting process of the wheel of on rolling stock, using and axle, be the roller hub bore with spool interference fit determine assembling fastness between them.Yet the cooperation fastness after carrying out this assembling was unmeasured in the past, was difficult to guarantee the assembly quality of product; What desire disassembled wheel from axletree also is very difficult, the indigenous method dismounting of current employing, and its work efficiency is very low.Especially at the suit on axletree that adopts on the quasi high-speed locomotive traction electric machine use axle suspension bearing box the time, the detection that cooperates fastness of wheel and axle or wheel then become more difficult with the dismounting of axle.

The purpose of this utility model is exactly that the technical scheme of a kind of railway vehicle wheel to the back-pressure device will be provided, to improve product assembly quality and work efficiency.

The utility model is achieved in that and comprises: base, the dolly that forebody on this base is covered with guide rail and can moves along this guide rail, characteristics are: latter half of cylinder bracket and the after poppet that all is in same axis that installed on base, cylinder body is housed in cylinder bracket, the piston rod of band piston is housed in this cylinder body, in the hole of this piston rod external part and after poppet, axle is housed, on this near the position of piston rod backward holder orientation successively suit spherical washer, connected body and movable back-up ring pass positioning component and cylinder bracket on the protecgulum that is fixed on the cylinder body, and be fixed in pull bar on the connected body.

Anterior plug-in mounting on the described pull bar sheath of suit on the key pin of band U type groove and this key pin, the rearward end on it is provided with in nut with matching.

The railway vehicle wheel that the utility model relates to is to the back-pressure device, adopt the dolly of band guide rail to make the workpiece self-orientation,, affect pull bar that wheel and axletree are oppositely pressurizeed by the propulsive effort size of modulated pressure cylinder, at high speed records two cooperation fastness between part, thereby can improve assembly quality; When cooperating fastness undesirable, can quickly and easily wheel be disassembled from axle.

Be described in detail railway vehicle wheel that the utility model relates to best technical application scheme below in conjunction with accompanying drawing to the back-pressure device:

Fig. 1. be the assembly drowing of the railway vehicle wheel that relates to of the utility model to the back-pressure device;

Fig. 2. be along the cutaway view of A-A among Fig. 1;

Fig. 3. be along the cutaway view of B-B among Fig. 1;

By Fig. 1 to Fig. 3 as can be known, the railway vehicle wheel that the utility model relates to comprises the back-pressure device: base 2, the dolly 4 that forebody on this base is covered with guide rail 3 and can moves along this guide rail, latter half of cylinder bracket 8 and the after poppet 11 that all is in same axis that installed on base 2, cylinder body 9 is housed in cylinder bracket 8, the piston rod 14 of band piston is housed in this cylinder body, axle 15 is housed in the hole of this piston rod external part and after poppet 11, on this near the position of piston rod backward holder orientation successively suit spherical washer 16 and 17, connected body 18 and movable back-up ring 19 pass positioning component 6 and cylinder bracket 8 on the protecgulum 7 that is fixed on the cylinder body, and be fixed in pull bar 5 on the connected body 18.

Anterior plug-in mounting on the described pull bar 5 band U type groove key pin 12 and should strong pin go up the sheath 13 of suit, the rearward end on it is provided with in nut 10 with matching.

During work: when pressure oil passes through in-oil cylinder ante-chamber (oil pocket between piston and the protecgulum), piston promotes piston rod 14 and moves backward along axle 15 by the connected body of adorning on it 18, this connected body drives pull bar 5 fixed thereon and also moves backward thereupon, the key pin 12 of pull bar leading section is pressed against wheel the spoke of wheel on 1 is pulled, meanwhile, oil cylinder protecgulum 7 withstands on wheel to 1 axletree end, realizes that promptly wheel is measured back-pressure or the work of removing vehicle tyres.

Claims

1. a railway vehicle wheel is to the back-pressure device, comprise: base (2), the dolly (4) that forebody on this base is covered with guide rail (3) and can moves along this guide rail, it is characterized in that: latter half of cylinder bracket (8) and the after poppet (11) that all is in same axis that installed on base (2), cylinder body (9) is housed in cylinder bracket (8), the piston rod (14) of band piston is housed in this cylinder body, axle (15) is housed in the hole of this piston rod external part and after poppet (11), on this near the position of piston rod backward holder orientation successively suit spherical washer (16) and (17), connected body (18) and movable back-up ring (19) pass positioning component (6) and cylinder bracket (8) on the protecgulum (7) that is fixed on the cylinder body, and be fixed in pull bar (5) on the connected body (18).

2. railway vehicle wheel according to claim 1 is to the back-pressure device, it is characterized in that on the described pull bar (5) anterior plug-in mounting the sheath (13) of suit on the key pin (12) of band U type groove and this key pin, the rearward end on it is provided with nut with matching (10).