SU977245A1 - Arrangement for securing a wheel pair in the bogie frame of railway traction vehicle - Google Patents

Description

The invention relates to a rail- _s Rozhnev regards the construction and transport locking mechanism in the frame of the wheelset with railway traction vehicles. ,

A device is known for · fixing a wheel-pair in the frame of a trolley of a railway traction rolling stock, comprising axle boxes installed with gaps in the frame guides, a traction reducer located on the axis of the wheel pair and connecting; gearbox with a frame for a jet draft carriage [1].

The disadvantage of the well-known mechanism for fixing the wheel pair in the frame is that when passing the curved sections of the track, there is increased wear of the wheels and the rail track.

The purpose of the invention is to reduce the contributions of the wheelsets and the track by providing self-installation of the wheelset in the curved sections of the track in the radial position.

'This goal is achieved by the fact that the device is equipped with an additional horizontal link placed in the longitudinal vertical plane of symmetry of the trolley frame pivotally connected to the gear housing and the frame, and the gaps between the axle box and the frame rails are connected by the relations

D-V

P. p> '

OR.

where a. - gap in longitudinal direction in - laziness, ’ gap in transverse completely A - leneu half distances between

wheels riding wheelset;

In - half the wheelbase of the trolley;

S - half the distance between the outer edges of the axle boxes;

R is the minimum radius of the path curve;

[d is the angle of the generatrix of the conical surface of the wheel

G is the radius of the wheel.

In FIG. 1 shows the proposed device, a top view, in FIG. 2 same side view; in FIG. 3 - axle box, side view, · figure 4 is the same, top view. ,

The device consists of two horizontal rods 1 and 2 located in the vertical longitudinal plane of symmetry of the frame at different levels. Using spherical joints 3-6, traction gear 1 and 2 connect the traction reducer

7, and therefore the wheelset

8. with frame 9 of the rolling stock. The axles 10 absorb the load from the frame 5 9 through the springs 11 of the spring suspension. In the axle boxes made increased gaps in the longitudinal and transverse directions, respectively, and willow. Such a connection allows some 40 wheel pairs to make movements: · around their vertical axes of symmetry (point 0) and transverse with respect to the track, ensuring the installation of each wheel 15.

pair in a radial position and the required distance between the wheel flanges and the rail heads.

The device operates as follows 20.

At the entrance to the curve, a section of the path, for example, in the right direction, wheelset 8, continuing to move in a straight line, with the left wheel. 25 runs on the left (outer? Rail with a large angle of wheel rolling, and the right on the left (outer) rail with a large-circle of wheel rolling, and the right wheel runs off the right ed (inner) rail, passing to a smaller skating circle. As a result of changing circle diameters the left wheel goes a longer way than the right one, and the wheelset 8 will turn to the right * the absence of axle boxes and the fixation of the wheelsets 8 using two jet rods 1 and 2 located at different levels in the vertical longitudinal plane of symmetry of the frame 9, · 40 and also) the lateral flexibility of the spring 111 suspension springs provide the possibility of each wheel pair independently of the others to self-align in a radial position 45.

The use of the proposed VA devices reduces the flow rates associated with the specifics of movement in the curved sections of the track (intensive wear of rails 50 and wheels, decreased adhesion of wheels to rails, and, therefore, locomotive traction force, increased resistance to train movement? And this brings the flow rate to the level corresponding to movement in straight sections of the road.

Claims (1)

The invention relates to railway transport and concerns the construction of a mechanism for fixing a wheel pair in a frame of railway rolling stock. It is known a device for - fixing a forest pair in the frame of a trolley of a railroad rolling stock containing a gearbox mounted with gaps in the guide frames of the axle box placed on the axle of the wheel pair of a gearbox and a coupling reducer with a trolley frame. . . The disadvantage of the conventional mechanism for fixing the pair of wheels in the frame is that with the passage of the curved sections of the track there is an increased wear of the wheels and the track. The purpose of the invention is to reduce wear of the wheelsets and the track by providing self-installation of the wheel set in curved track sections to the radial position. This goal is achieved by the fact that the device is equipped with an additional horizontal thrust placed in the longitudinal plane of symmetry of the trolley frame, a frame hinged to the body of the rear frame, and the gaps between the axle box and the frame are connected by the axes a.- clearance in the longitudinal direction, the gap in the transverse direction — to Lenin A — half the distance between the Katani circles of the wheels of the wheelset; Half the wheelbase of the trolley; S is half the distance between the outer edges of the boxes; R is the minimum radius of the path curve; | B - the angle forming the conical surface of the wheel; J is the radius of the wheel. FIG. 1 shows the proposed, top view; in fig. 2, side view; in fig. 3 is the side view of the axle box in FIG. 4 - the same, top., The trio consists of two gorilnye grams 1 and 2, located ticking the longitudinal plane of symmetry of the frame at different levels. With the help of spherical hinges, 3-6 tons of gi 1 and 2 connect the thrust reduct 7 and, therefore, the wheel pair 8. with the rolling stock frame 9. The beech sy 10 perceives the load from ama 9 through the springs 11 of the spring suspension. Increased gaps in the longitudinal and transverse directions, respectively, and willows, are made in the guide boxes. Such a connection allows the wheel sets of the iuaTb movement to move around their vertical axes of symmetry (point Q) to transverse relative wheels, ensuring that each wheel set is radially positioned and the required distance between the crests of the wheels and the rail heads. The device works as follows. When entering a curved section of the track, for example, the right direction, the wheel pair 8, continuing to move in a straight line, the left wheel hits the left one (the outer side has a large wheel angle, and the right side has a large circle of the wheel side and the right wheel escapes from the right inner rail, moving to a smaller katani circle. As a result of changing the diameters of the katani circles, the left wheel goes a longer way than the right one and wheel pair 8 rotates to the right. Lack of axle guides and wheel locking ar 8 using two reactive tg 1 and 2, located at different levels in the vertical longitudinal plane of symmetry of the frame 9 and also (Transverse spring springs 11 spring suspension allow each wheel pair independently of the other to self-adjust to the radial position. Application The proposed device reduces the costs associated with the specificity of movement in curved sections of the track (intense wear of rails and wheels, reduction of the adhesion of the wheels of the PCs with rails and, consequently, the strength of the hydraulic locomotive, increased oprotivlenie train movement; and brings these costs to the level corresponding to traffic in the straight sections of the route. Claims An apparatus for fixing a wheel pair in a frame of a railcar rolling stock bogie containing a gearbox mounted with axles in the axle frames of the axle box, mounted on an axle pair of a traction gearbox and connecting the gearbox to the frame is a reactive thrust bearing By the fact that, in order to reduce wear of the wheelsets and the track by providing the wheelset self-aligning in curved sections of the track to the radial position, it is equipped with the frame symmetric placed in the longitudinal vertical plane the additional horizontal carts, hinged to the gearbox housing and the frame, and the gaps between the axle box and the frame guides are related by relationships. , the gap is in the longitudinal direction of the gap in the transverse direction /. A is half the distance between the Katani circles of the wheels of the wheelset; B - half-wheelbase of the trolley; g - half the distance between. outer edges R - the minimum radius of the curve of the path | b - the slope of the generatrix of the conical surface of the wheel -. 1g is the radius of the wheel. Sources of information taken into account in the examination 1. Application of Japan 51-13285, cl. 79 And 154 pub. 04/27/76 (prototype.  ten y, 9 8 3 / / ktfl I Ray f i & I.CH