CN2420213Y

CN2420213Y - Hydraulic dismantling and back pressure test device for engine wheel pair

Info

Publication number: CN2420213Y
Application number: CN 00210760
Authority: CN
Inventors: 孙永亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-28
Filing date: 2000-01-28
Publication date: 2001-02-21
Anticipated expiration: 2010-01-28

Abstract

The utility model relates to a hydraulic dismantling and back pressure test device for an engine wheel pair, which comprises a worktable, a rail and a reversible carrier which are arranged on one end of the worktable. The other end of the worktable is provided with a supporting base and a pull plate to fix a master cylinder and a draw rod; the end surface of a carriage axle is supported on a copper packing added on the front end of a piston rod of the master cylinder to avoid the end surface of the carriage axle being damaged. One end of the draw rod is fixed on the draw plate, and the length of the draw rod can be adjusted by a trapezoid screw cap, and the other end is provided with a socket with a sheath, which can be connected with the wheel. The utility model has the advantages of simple structure, high bearing capacity, no stress concentrator, good stress condition, and convenient operation.

Description

Locomotive wheel is to hydraulic pressure dismounting and back-pressure experimental set-up

The utility model relates to a kind of hydraulic pressure dismounting and back-pressure experimental set-up, especially a kind of Bearing of Railway Locomotive Wheel Set right hydraulic pressure dismounting and back-pressure experimental set-up of being used for.

Because the speed-raising of railway locomotive, make the incompatible requirement of travelling at a high speed of the right structure of former locomotive wheel, the axle suspension bearing box wheel that for this reason changes the band antifriction-bearing box into is right, it with other take turns to different be the axle suspension bearing box that the band antifriction-bearing box is housed between two wheels, antifriction-bearing box is equipped with at the axle suspension bearing box two ends, the centre is equipped with traction motor, four holes of design on spoke, be used for dismantling wheel and carry out the back-pressure test, China's utility model patent specification sheets, ZL 96225870.9, disclose and a kind of the oil cylinder accumbency has oppositely been used, promptly withstand the axletree end as fixed end with the big end of oil cylinder, the piston rod front end assembles an arm-tie four pull bars that have nut is fixed, the other end of pull bar is connected with wheel by the key pin of U type groove and the sheath of enclosed shape, during work, piston rod moves forward, the end that makes the axletree end withstand on oil cylinder by four pull bars reaches the dismounting wheel, this form disadvantage is more, complex structure, when piston rod moved, four pull bars drove working substance and move simultaneously, and pull bar has extended, poor location, in the spoke difficult to get access hole, must manually lift centering during insertion, and, arm-tie because of stressed unreasonable often drawn bad, because sheath is an enclosed shape, thus mounting or dismounting ten minutes trouble, in addition, the cross section of track and wheel is square, because the wheel counterweight is laid particular stress on, and lays particular stress on increasing when dismantling the wheel of an end, causes the carriage walking difficulty, need the several people to push away, during dismounting other end wheel, needs are reversed end for end and are had dolly function without spin now, have to use crane, in view of this, conventional device wastes time and energy, and consumable accessory is many, and the life-span is short.

The purpose of this utility model is to provide a kind of dolly to have revolute function, and the oil cylinder forward is installed and used, and pull bar is short, and the locomotive wheel that stress condition is good is dismantled and the back-pressure experimental set-up hydraulic pressure.

The utility model above-mentioned purpose realizes by following technological means.

A kind of locomotive wheel is to hydraulic pressure dismounting and back-pressure experimental set-up, it comprises bench board, the dolly that is provided with guide rail and can moves along guide rail at an end of bench board, the other end of bench board is provided with a bearing and is used for fixing master cylinder and pull bar, arm-tie is assemblied on the rear side housing of master cylinder, one end of pull bar is adjusted its length with trapezoidal adjustment nut and is fixed on the arm-tie, pull bar and an end of main oil cylinder piston bar homonymy are equipped with the socket of the band sheath that can connect wheel, have on the sheath and corresponding mouthful of socket, so that the mounting or dismounting wheel is more convenient, on the pad made from non-ferrous metal material that the axletree end face withstands on that main oil cylinder piston bar front end installs additional, in order to avoid damage axletree end face, the cross-sectional plane of guide rail is circular, match with the semicircle flute profile wheel on the dolly, in the middle of guide rail, be provided with one and be used for the oil cylinder that driving trolley moves, between the base plate of dolly and rotating disk, be provided with steel ball, so that dolly can turn round, the both sides that are positioned at dolly on the table top of bench board are fixed with the plate that two block length second shape plates and dolly both sides stretches out and are buckled together preventing and lay particular stress on, the protecgulum of master cylinder is a screw-driving, and bonnet adopts welding.

The locomotive wheel that the utility model provides is to hydraulic pressure dismounting and back-pressure experimental set-up, because oil cylinder is the forward push-and-pull, and pull bar is fixed on the arm-tie of master cylinder rear end, fuse with master cylinder, piston rod directly acts on the axletree end face, the master cylinder bonnet is welding, so the utility model is simple in structure, bearing capacity is big, unstressed concentrated part, stress condition is good, in addition, the dolly in the utility model can rotate, so when having dismantled an end wheel, needn't re-use crane, thereby made things convenient for use, and sheath is opening shape, institute is so that the mounting or dismounting wheel is more convenient.

Introduce the utility model specific embodiment in detail below in conjunction with accompanying drawing.

Fig. 1 is the utility model structural representation;

Fig. 2 is that the K of Fig. 1 is to structural representation;

Fig. 3 is the scheme drawing of the utility model dismounting rolling axle-hang box;

Fig. 4 is the A-A section-drawing of Fig. 1.

Shown in Fig. 1,2,4, end at bench board 2 is equipped with the track 6 of two sliver transvers sections for circle, the dolly 5 that half oil cylinder 1 for sleeping in is used on the drive track 6 in the middle of track 6 moves along track 6, there is quadruplet semicircle flute profile wheel 7 to match on the dolly 5 with track 6, and dolly 5 is fixing and the base plate 20 that fuses and rotating disk 22 between be provided with steel ball 21, the feasible quadruplet support that is positioned on the rotating disk 22 can turn round, on the table top of bench board 2, be positioned at the both sides of dolly 5, be fixed with the plate 19 that the B-mode plate of two block lengths 18 and dolly 5 both sides stretches out and be buckled together preventing and lay particular stress on; The other end at bench board 2 has a bearing 12 that master cylinder 13 and four pull bars 17 is fixing, one end of pull bar 17 is fixed on the arm-tie 14 that connects together with master cylinder 13 bonnets, its length is with

trapezoidal nut

15,16 adjust, and it is fixing, one end of pull bar 17 and master cylinder 13 piston rod homonymies is equipped with quadruplet opening identical socket 8 and sheath 23 in order to fixing wheel, the piston rod front end of master cylinder 13 is equipped with a copper packing 11, be used to withstand the axletree end face in order to avoid it is impaired, the protecgulum of master cylinder 13 is a screw-driving, bonnet adopts welding, to increase bearing capacity, be furnished with hydraulic control system and electric control system respectively in bench board one side, adopt pressure transformer to change pressure signal into electric signal, connect, reach macro-control and closed loop control with the electric system digital display meter.

During the dismounting wheel, the wheel that assembling is complete is on four supports (two straight pins on the support are aimed at the knock hole of rolling axle suspension bearing box respectively) that are placed on dolly 5, dolly 5 moves forward along guide rail 6, and rotary trolley 5 makes on the spoke four holes aim at four pull bars, after arriving required control position, sheath 23 opening parts are alignd with socket 8 insert in the pull bar 17, rotate sheath 23 usefulness screws and lock; Start master cylinder 13 and make the piston rod reach, copper packing 11 holds out against before axletree end and the piston rod, at this moment four pull bars 17 are strained simultaneously up to wheel is dismantled down, unclamp lock screw, with sheath 23 opening parts with take off after socket 8 aligns, the mobile backward return of dolly 5, rotary trolley 5 make on another wheel spoke four holes aim at four pull bars 17, repeat aforementioned activities.

During with the utility model dismounting rolling axle suspension bearing box, bearing and big oil retainer washer cover, as shown in Figure 3, the smaller diameter end of rolling axle suspension bearing box is installed the axle box plate pulling device, then, installing transition arm-tie 9 again additional also tightens with two cover screw rods 3, nut 10, simultaneously big oil retainer washer arm-tie is fastened on the rolling axle suspension bearing box action before repeating again.

During with the utility model dismounting driven gear, also be the device of using as shown in Figure 3, install transition arm-tie 9 and two cover screw rods 3, nut 10 additional, action before repeating again.

The method of carrying out the back-pressure test is identical with method for dismounting, just the pressure difference.

Claims

1. a locomotive wheel is to hydraulic pressure dismounting and back-pressure experimental set-up, the dolly [5] that the end that it is included in bench board [2] is provided with guide rail [6] and moves along guide rail [6], the other end at bench board [2] is provided with bearing [12] and arm-tie [14], on bearing [12] and arm-tie [14], be fixed with master cylinder [13] and pull bar [17], it is characterized in that said arm-tie [14] is assemblied on the rear side housing of master cylinder [13], one end of pull bar [17] is with adjusting nut [15], [16] be fixed on the arm-tie [14], pull bar [17] and an end of master cylinder [13] piston rod homonymy are equipped with the socket [8] of the band sheath [23] that can connect wheel.

2. hydraulic pressure dismounting according to claim 1 and back-pressure experimental set-up, the cross-sectional plane that it is characterized in that said guide rail [6] is for circular, semicircle flute profile wheel [7] on the dolly [5] matches with guide rail [6], middle being provided with of guide rail [6] is used for the oil cylinder [1] that driving trolley [5] moves, and is provided with steel ball [21] between the base plate [20] of dolly [5] and the rotating disk [22].

3. hydraulic pressure according to claim 1 and 2 dismounting and back-pressure experimental set-up, the both sides that it is characterized in that on the table top of said bench board [2], are positioned at dolly [5] are fixed with two block length second shape plates [18] and fasten the plate [19] that stretch out dolly [5] both sides.

4. hydraulic pressure dismounting according to claim 1 and back-pressure experimental set-up, it is characterized in that: the piston rod front end at master cylinder [13] is equipped with the pad [11] that a usefulness non-ferrous metal material is made.

5. hydraulic pressure dismounting according to claim 1 and back-pressure experimental set-up is characterized in that: said sheath [23] is provided with and the corresponding opening of socket [8].

6. according to claim 1 or 4 described hydraulic pressure dismounting and back-pressure experimental set-ups, it is characterized in that: the protecgulum of master cylinder [13] is a screw-driving, and bonnet adopts welding.