CN2291348Y

CN2291348Y - Gravity vehicle retarder

Info

Publication number: CN2291348Y
Application number: CN 96241825
Authority: CN
Inventors: 郭祥熹; 甄建铁; 贾国跃
Original assignee: Institute Of Communication And Signaling Academy Of Science Ministry Of Railways
Current assignee: Institute Of Communication And Signaling Academy Of Science Ministry Of Railways
Priority date: 1996-11-07
Filing date: 1996-11-07
Publication date: 1998-09-16
Anticipated expiration: 2006-11-07

Abstract

The utility model relates to a floating rail gravity type vehicle retarder, belongs to the vehicle braking technique of railway, adopts an external limiting block with a boss, is connected with a main shaft and is positioned by a pin, and the lower part of the floating rail gravity type vehicle retarder is provided with an inlaid block structure. Meanwhile, the floating rail gravity type vehicle retarder adopts a combined braking rail structure, the braking caliper also adopts a precision casting component, and a coupling shaft is shifted outward to enlarge the diameter of a shaft hole. A bell crank, a cylinder seat, a shaft seat of a drawing rod and a shaft are respectively equipped with blocking surfaces and planes, which can prevent the shaft turning. The floating rail gravity type vehicle retarder can prevent the braking rail rolling over and deforming, reduces the vibration and the noise, greatly improves the working condition, enlarges the safe coefficient, and improves the service life.

Description

Floating rail gravity vehicle reducer

Floating rail gravity vehicle reducer, relate to hump yard marshalling station hydraulic pressure or pneumatic floating rail gravity vehicle reducer, be particularly related to the car retarder that parts such as its limiting stopper, braking rail, brake clamp, axle is adopted comprehensively new construction, belong to the rolling stock braking technology.

At present, the floating rail gravity vehicle reducer that railway classification yard is braked vehicle, form by parts such as brake clamp, braking rail, crank throw, connecting rod, rail bearing, axles, glancing impact utilizes oil cylinder or cylinder piston to move through connecting rod drive crank throw and erects, brake clamp is swayed, make inside and outside braking rail rail head spacing less than wheel thickness, enter braking mode, when vehicle enters, power transmission by float rail and brake clamp, braking rail produces lateral pressure to wheel, thereby vehicle is braked, and makes car retardation; When piston reverses direction was moved, retarder was in the release position.In above-mentioned car retarder, do not prevent the structure that braking rail is rotated, when extruding, vehicle exists the danger of braking rail upset; Former braking rail is to adopt single rail to process, so noise is very big with vibration; Simultaneously the brake clamp of former car retarder is too near with the rail distance with the position of rail bearing coupking shaft, can cause wheel rim easily to press inside brake to clamp, and the diameter of axle can't increase, and causes excessive and reduction life-span of axle sleeve unit pressure; Also exist connecting of former limiting stopper and rail bearing difficult fastening easily loosening, all axle in addition and do not prevent the shortcoming of unnecessary rotation support easy to wear.

The purpose of this utility model is that the major part to former car retarder improves, provide a kind of and both can guarantee the car brakeing effect, can prevent braking rail upset again, reduce noise and vibration, avoid brake clamp by the wheel rim spreading and improve intensity, reduce support hole worn-down improved type car retarder.

The technical solution of the utility model is: car retarder adopts boss of limiting stopper top increase outside, this limiting stopper boss plane separation braking rail rail head lower plane 2-4mm, face to face, the unlikely generation upset of braking rail and prevent that rail head from deforming in the time of can guaranteeing that vehicle is extruded, inside and outside limiting stopper one side with pivot pin be connected with spindle hole the location and in addition by screw retention on the rail bearing, set up the abaculus of limiting stopper bottom simultaneously, increase wears away to reduce stock rail with flange of rail contact surface; Adopt the combination braking rail, form by braking rail, oil-resistant rubber insert, angle beam, taper liner, spring washer, bolt and nut, braking rail is connected with brake clamp, be lined with oil-resistant rubber insert and be connected the effect that to play vibration damping, noise abatement sound and gain in strength with bolt, spring washer, nut between braking rail and angle beam; Adopt coupking shaft to move and add the inside and outside brake clamp of the precision cast of large aperture outward, the distance of axle center and rail can increase to 90mm, the aperture can increase to more than the 75mm, both can avoid wheel rim spreading brake clamp, can reduce unit pressure by the increase of axis hole size again and improve the life-span; Adopt the structure of shaft shoulder band plane, cooperation support band block face, shaft shoulder plane is leaned on mutually with the support block face, can solve the wear problem of supports such as crank throw, cylinder seat, pull bar.

The utility model and former car retarder relatively have the following advantages: can prevent braking rail upset and rail head distortion, played the effect of vibration damping and minimizing noise, be beneficial to the health of field worker, avoid wheel rim spreading brake clamp and reduce the unit pressure of axis hole, solve the support wear problem, can improve working condition greatly, increased safety factor, improve service life, guaranteed the car brakeing effect again.

Be described further below in conjunction with accompanying drawing:

Fig. 1 looks scheme drawing for the utility model overall structure master;

Fig. 2 .1 is a crank shaft A-A face cross-sectional schematic among Fig. 1;

Fig. 2 .2 is that the B of Fig. 2 .1 is to scheme drawing;

Fig. 3 looks scheme drawing for the limiting stopper master of Fig. 1 China and foreign countries;

Fig. 4 is the C-C generalized section of Fig. 3;

Fig. 5 looks scheme drawing for combination braking rail master among Fig. 1.

Embodiment: floating rail gravity vehicle reducer is to vehicle braked and alleviation, realize by oil cylinder or cylinder piston motion drivening rod, during braking mode, connecting rod erects crank throw 9, force brake clamp 1,7 around coupking shaft 3 rotations, be installed in brake clamp 1, extended distance narrows down to less than wheel thickness between the braking rail 2 on 7, when wheel enters, in, outer brake clamp 1,7 pressurizeds force it together with coupking shaft 3 and drive rail bearing 6 and rise simultaneously, and stock rail also floats simultaneously, be pressed in the wheel on the stock rail, be subjected to the lateral pressure of braking rail 2, thereby vehicle is braked, make car retardation.There is a boss A outer limiting stopper 4 tops in the utility model, boss A top plan is apart from braking rail 2 rail head lower plane 2-4mm, face to face, can guarantee braking rail 2 unlikely generation upset and prevent that rail head from deforming when vehicle is extruded, inside and outside limiting

stopper

4,5 one sides are connected location and carry-over moment with pivot pin 10 with main shaft 3, be fixed on the rail bearing 6 by screw 12 in addition, inside and outside limiting

stopper

4,5 bottoms are installed abaculus 11 and are placed on the flange of rail, increase and flange of rail contact surface, reduce the stock rail abrasion; The combination braking rail is made up of braking rail 2, oil-resistant rubber insert 15, angle beam 14, bevelled washer 13, bolt, nut and spring washer, braking rail 2 usefulness high strength bolts, black nut and spring washer are connected fastening with brake clamp 1,7,14 of braking rail 2 flanges of rail and angle beams are lined with oil-resistant rubber insert 15, install bevelled washer 13 additional with bolt, nut, spring washer braking rail 2 and angle beam 14 are fastenedly connected the effect that can play vibration damping, noise abatement sound and gain in strength; Move and add large-diameter the coupking shaft 3 of brake clamp 1,7 and rail bearing 6 is outer, adopt the brake clamp 1,7 of precision cast, both can avoid wheel rim spreading brake clamp 1,7, can reduce the axis hole unit pressure again, improve intensity, growth service life to 75mm; Adopt the axle 8 on shaft shoulder band plane and the crank throw support 9 of band block face, shaft shoulder plane is leaned on mutually with the support block face, and cylinder seat, draw-bar seat all adopt this structure in addition, can reduce the support wearing and tearing.Release of brake also is by oil cylinder or cylinder piston motion, and crank throw 9 is fallen down, and brake clamp 1,7 falls automatically by gravity, and 2 distances of inside and outside braking rail reset and become big, and wheel braking is alleviated.

Claims

1, floating rail gravity vehicle reducer, form by parts such as brake clamp, braking rail, crank throw, connecting rod, rail bearing, axles, it is characterized in that: it adopts the outer limiting stopper of band boss, the plane is relative with braking rail rail head lower plane on the boss, pivot pin is installed on the limiting stopper is connected the location with main shaft, install abaculus additional under the limiting stopper, abaculus is placed on the stock rail flange of rail.

2, floating rail gravity vehicle reducer according to claim 1, it is characterized in that: it adopts the combination braking rail, is linked to be integral body by braking rail, oil-resistant rubber insert, angle beam by purpose made bevelled washer, regular bolt, nut, spring washer.

3, floating rail gravity vehicle reducer according to claim 1 is characterized in that: outer the moving of brake clamp and rail bearing coupking shaft by precision cast makes the diameter of axle reach 75mm.

4, floating rail gravity vehicle reducer according to claim 1 is characterized in that: establish a block face on the support axis hole of crank throw, cylinder seat, pull bar, the shaft shoulder of while at the axle of its cooperation is provided with a plane, and its block face is leaned on mutually with the plane.