RU1787843C - Load-pressure car retarder - Google Patents

Abstract

Usage: in devices for braking cars on sorting hills, SUMMARY OF THE INVENTION: the device comprises a rail track in the area of brake beams 1.2 made of two parts 3.4, hingedly connected to each other, and a spring-loaded rod 5 connected to its upper a part with a common hinge 6, which is an element of the central hydraulic cylinder 7, the cavities of which through pipelines 8 with a shutoff valve 9 communicate with the cavities of the extreme hydraulic cylinders 10, 11, the ends of the rods of which are connected with the pairs of levers 12, 1 corresponding to them 3. wherein the lower part of the levers 12,13 is wedged by rollers 14. 4 sludge.

Description

Fs.1

The invention relates to railway transport and relates to track devices used for braking wagons on sorting slides.

A weighted car retarder is known, comprising lifting brake shoes, a lifting mechanism including a wedge mechanism, in each of which the lower wedges are spring-loaded in a horizontal direction relative to the base, and the upper wedges are connected to the respective ends of the brake beams, and the wedge latches in working position.

A device is known comprising brake beams, a drive. In the area of the brake beams, rail tracks are located with external ends connected to the base, and internal - pivotally connected to each other and to the actuator rod spring-loaded relative to the base.

A disadvantage of the known device is its design complexity and low reliability.

The aim of the invention is to simplify the design and increase reliability.

This is achieved by the fact that the actuator includes at least three hydraulic cylinders, the homogeneous cavities of which are directly connected to each other, and the opposite cavities through a locking member, while the rods of the two hydraulic cylinders are kinematically connected with the indicated levers, which are pivotally mounted on the base, and the specified spring-loaded rod connected to the piston of the third hydraulic cylinder.

Figure 1 shows a General view of the device (side view in the operating position); in Fig.2 is also a view in the initial operating position; in Fig.3 - section in Fig.1 (working polo

zhenie); in Fig.4 - the same in section (inoperative position).

The weight car moderator contains a rail track in the area of the brake beams 1,2, made of two parts 3,4, pivotally connected to each other, and a spring-loaded rod 5, connected with its upper part with a common hinge 6 and which is an element of the central hydraulic cylinder 7. the cavities of which, through pipelines 8 with a locking member 9, are connected with the cavities of the extreme hydraulic cylinders 10. 11, the ends of the rods of which are connected with the corresponding ones for; pairs of levers 12,13, and the lower part of the levers 12, 13 are wedged by rollers 14.

Weight car moderator works as follows.

In the working initial state (see figure 2), the central spring-loaded stem

0

fifty

5

0

5

0

5

0

5

5 of the hydraulic cylinder 7 props up the central ends of the moving parts of the 3.4 rail track through the hinge 6. In the event of a wheel running over the moving parts of the 3.4 rail track, the latter is lowered together with the rod 5 under the pressure of the weight coming to the wheels of the brake car, which is why when closed to the shut-off element 9, the displaced liquid from the central hydraulic cylinder 7 is distributed through a pipe 8 into the lower cavities of the extreme hydraulic cylinders 10, 11, thereby lifting the rods of the latter and wedging the lower part of the paired wedge arms 12, 13 with the rollers 14.

As a result, the bandages of the wheel pairs of the brake cars turn out to be clamped brake beams 1,2 (see Fig. 3), which causes the braking of the cars.

If it is necessary to brake the wagons having gained the set design speed, the locking member 9 is opened, after which, under the action of the transmitted weight force, the movable parts 3,4 with the rod 5 are finally pressed and laid on a fixed track base. At the same time, under their own weight, the rods with rollers 14 are lowered and the liquid from the lower cavities of the hydraulic cylinders 7, 10, 11 is fed through the shut-off element 9 through the pipeline into the upper cavities of the hydraulic cylinders 10, 11, while the spring 15 brings the lower ends of the levers 12, 13 into spreads the upper ones with brake beams 1.2, which leads to the non-contact passage of the cars through the moderator, but the locking element 9 then immediately closes, locking the liquid in the upper cavity of the hydraulic cylinder 7, i.e. the spring 15 will not be able to lift the movable parts 3,4 through the stem 5 and displace the corresponding part of the liquid from the upper cavity, because the upper cavities of the extreme hydraulic cylinders 10, 11 will already be occupied, and the locking element 9 is closed. To bring the moderator into operation, the shut-off element 9 is opened and the liquid is forced out by the piston of the rod 5 from the upper cavity of the hydraulic cylinder 7 into the lower cavity of the same cylinder under the pressure of the spring 15, the shut-off element 9 is again closed, and the moderator takes its initial working state (see figure 2)

To compensate for fluid leakage, a compensator 16 is provided with a check valve 17,

Claims (1)

SUMMARY OF THE INVENTION A weight wagon moderator comprising brake beams by means of pivoting arms rail segments connected with the drive and located in the area of the brake beams, the outer ends are pivotally connected to the base, the inner ends are pivotally connected to each other and with a drive rod spring-loaded relative to the base, characterized in that that, in order to simplify the design and increase reliability, the actuator includes at least three hydraulic cylinders, the homogeneous cavities of which are directly connected to each other, and the opposite cavities through the shut-off element, while the rods of two hydraulic cylinders are kinematically connected with the indicated levers, which pivotally fixed to the base, and said spring-loaded stem is connected to the piston of the third hydraulic cylinder. /////// 7/7 Aa FIG 2 Aa