SU582112A1 - Device for protecting axle boxes of rail car bogie at washing - Google Patents

Description

one

The invention relates to the maintenance of railway rolling stock.

A device is known for protecting the axlebox of a wagon trolley when it is washed, containing safety elements interacting with axle boxes, the role of which is performed by transitional axle boxes with shtutsers for connecting flexible hoses from air ducts.

However, this device has low labor productivity and high labor intensity, since it is necessary to remove the fastening covers from each axle box and replace them with transitional ones, connect the hoses to them and blow the axle boxes with compressed air during the washing period. After this, it is required to re-mount the existing axle covers. At the same time, compressed air is consumed.

The purpose of the invention is to increase labor productivity by mechanizing the process, simultaneous installation of safety elements on all axle boxes of the carriage.

For this, the proposed device is equipped with a frame, Ea of which, on both sides, are pivotally mounted pairs of double-shoulder levers supporting safety elements at the ends, made in the form of sealing half-rings, rotating in the vertical plane from the power cylinder, connecting free shoulders, and moving in the horizontal plane from a spring-loaded ram, fixed to the frame, with rollers mounted at the ends of the free arms, and curved rails in the frame for their movement.

FIG. 1 shows schematically the proposed device, a general view; in fig. 2 - the same, top view; in fig. 3 - the same, lateral view, at the moment of entering the sealing half-rings into the undercut of the wheel center.

The device comprises a frame 1, on which on both sides of the wheel sets of the trolley 2 a pair of double-shoulder levers 3 are hingedly mounted, carrying safety arms at the ends

elements made in the form of half-rings 4, hinged to the base 5 and provided with an elastic sealing element 6 and a spring 7, which allows to keep the half-rings open (see Fig. 1) and

closed (see Fig. 2) positions. The free arms of the levers 3 are connected by a power cylinder 8 and are provided with rollers 9 interacting with curved guides 10 on frame 1.

The pivot arms 3 have the ability to move reciprocally on the axles AND in the direction of the carriage carriage and vice versa. In the direction of the carriage and rail 10, the movement occurs under the action of springs

12, and in the opposite direction with the help of a cylinder 13 connected to the strap 14 and cooperating with the sleeves 15 of the levers 3.

From the control panel, a pulse is applied to the valve, which is controlled by the cylinder operation (not specified). Compressed air enters the cylinder 8, which, acting on the free shoulders of the levers 3, turns them on axles 11, while the rollers 9 interact with the guide 10 along the straight portion of the guide and the levers 3 rotate only in the vertical plane. As soon as the base 5 of the sealing half-rings 4 reaches the lower level of the undercut of the wheel center 16, the roller 9 moves from the straight to the inclined section of the guide 10, and the levers 3 start to move in the direction of the wheel pairs of the cart and enter the undercut of the wheel center 16 (on Fig. 3 shows the position of the grip) and further until it touches the stop of the lever 3 in the wheel rim 17. With further lifting, the levers 3 are constantly supported on the rims 17 and slide along them, precisely pointing the half-ring in the direction of the gap between the wheel center 16 and the end of the axle box 18, until they are fully exchanged, closed in the gap and closed. The final sealing of the labyrinth annular gap by the semirings at the end of the axle box is carried out by cylinder 13 by supplying compressed air thereto.

The cylinder 13 with the bar 14 presses the bushings 15 and moves the levers 3, and accordingly the half-rings 4 in the direction of the end of the axle box 18, and presses the sealing element 6 to the axial labyrinth gap of the axle box 18, sealing it tightly, which protects the axle box from vapor and mortar. The device returns to its original position in the reverse order. Air is released from the cylinder 13, and under the action of the springs 12, the half rings 4 are pressed from the end of the axle box 18 up to the stop of the levers 3 to the rim 17 of the wheels.

By supplying air to the other cavity of the cylinder 8 (not indicated), the levers 3 are pressed down by the force of the cylinder together with the half rings 4, which in this case are opened (the position of the opened grippers is shown in Fig. 1). When the lower center of the wheel center is reached by the base 5, the roller 9 interacts with the inclined part of the guide 10, pushes the levers 3 away from the wheel sets of the trolley, removes the half-rings from the groove and sets the levers 3 to the initial position.

The proposed device provides accurate and automatic installation of sealing half-rings simultaneously to both axle boxes of the trolley cart on each side of the trolley and provides reliable sealing - protection of axle boxes when washing.

Claims (1)

Invention Formula A device for protecting the axle box of a wagon trolley when it is washed, containing safety elements interacting with axle boxes, characterized in that, in order to increase labor productivity by mechanizing the process of simultaneous installation of safety elements on all axle boxes of the trolley, the device is fitted with a frame on which are mounted on both sides a pair of double-shouldered arms hinged at the ends with safety elements made in the form of sealing half rings rotating in the vertical plane from the forces the second cylinder connecting the free shoulders and moving in the horizontal plane from the spring-loaded ram mounted on the frame, rollers mounted on the ends of the free shoulders, and curvilinear guides fixed to the frame to move the latter.