RU91333U1 - MANEUVER DEVICE - Google Patents

Abstract

1. A shunting device comprising an electric motor, a gearbox and a drum, mounted on a frame located on the base, a bypass unit located on the base at a distance from the frame, an endless rope wound on and off branches, wound on a drum, and the rope goes around the bypass block, tension a device with two spring-loaded rollers attached to the frame, characterized in that the incoming and outgoing branches of the rope are directed in one direction, and the tensioning device is configured to clamp the branches of the rope to each other . ! 2. The device according to claim 1, characterized in that the tensioner comprises upper and lower brackets interconnected by two vertical studs and pressed against each other by springs located on the upper ends of the studs, while rollers are fixed on the outer sides of the brackets, and the connection of the tensioner with the frame is made in the form of a pivot arm attached to the upper bracket.

Description

The utility model relates to winch mechanisms, namely to towing devices, and can be used to move trains during loading and unloading operations on sections of railroad warehouses.

Known shunting winch with a reversible electric drive for pulling rolling stock (see copyright certificate SU No. 132384, IPC B66D 1/78, publ. 1960.01.01). The installation comprises a traction motor connected through a gearbox to the drive shaft, as well as two drums with ropes. One of the drums (with a cargo rope, at the end of which a hook is fixed) is designed to move cars and is rigidly attached to the drive shaft, and the second is connected to the shaft using a tape coupling. The return rope, fixed at one end to the second drum, which is locked with a tape brake, passes through the deflector mounted opposite the shunting winch at a distance slightly greater than the towing length of the train, the second end of the return rope is attached to the cargo rope. The second drum is designed to return the cargo rope with a hook engaged with one; from the wagons of the train to be pulled back to the starting position, that is: to the point where the wagons begin to move next to the deflecting block.

However, this device provides the possibility of towing cars: in only one direction, in addition, during operation, the belt brake is constantly rubbed against the second drum, which entails increased energy consumption.

A device is known according to US patent No. 3502301 (IPC B66D 1/48, publ. 1970.04.24) containing a drum driven by an electric motor, as well as an endless rope (one end of which is connected to the other) wound on a drum. The rope was passed through two blocks located near railway tracks on different sides of the drum at a distance from each other slightly exceeding the towing length of the train, and attached to one of the moving cars using a towing element. When the drum rotates in one direction, the oncoming branch of the rope becomes towed: and the runaway branch of the rope follows the cars. When changing the direction of rotation, the runaway branch becomes oncoming and tows the train in the opposite direction, or moves the towing element to the desired position.

The above device allows you to move the train in two directions, however, in the process, the rope lengthens, which leads to a weakening of the tension of the runaway branch and slipping of the rope on the drum, and the rope tension is time-consuming.

Closest to the claimed technical solution is a shunting device for moving trains during loading (see copyright certificate SU No. 506573, IPC B66D 1/78, publ. 1976.05.06). The shunting device comprises a frame with an electric motor mounted on it, connected through a gearbox to a drum, on which three or four turns of a traction endless rope are wound. On the frame under the drum, the left and right cable rollers are repelled from each other by a spring and can be moved up to the stops along the guides. A rope branch descending from the drum from the bottom left covers the left block and goes to the right, and a rope branch descending from the drum from the bottom right covers the right block and goes to the left. The left and right rope hoops are passed through the bypass blocks located near the railway tracks at a distance that determines the amount of movement of the train.

The above device is configured to pull the runaway branch of the rope to eliminate slippage on the drum. However, the tension mechanism is cumbersome, in addition, for its operation, complex wiring of the rope with crossing oncoming and descending branches is necessary. This shunting device is taken as a prototype.

The task to which the invention is directed is to increase the degree of reliability and simplify the design of the shunting device and the rope tension mechanism.

The technical result is to ensure constant tension of the runaway branch of the towing rope when reversing the shunting device due to the presence of a mechanism that presses the runaway branch of the rope to the oncoming one.

The claimed technical result is achieved by the fact that the shunting device comprises an electric motor, a gearbox and a drum mounted on a frame located on the base, a bypass unit located on the base at a distance from the frame, an endless rope wound on and off branches wound on a drum, and the rope bends around a bypass unit, a tension device with two spring-loaded rollers attached to the frame, according to the solution, the incoming and outgoing branches of the rope are directed in one direction, and the tension device is made with zmozhnostyu clamp rope branches to each other. The tensioner comprises upper and lower brackets, interconnected by two vertical pins, and pressed against each other by springs located on the upper ends of the pins, with rollers fixed to the outer sides of the brackets, and the connection of the tensioner to the frame is made in the form of a rotary lever attached to the upper bracket.

The utility model is illustrated by drawings, where in Fig. 1 a general view of a shunting device is shown, in Fig. 2 is a general view of a tensioning device, in Fig. 3 is a rope arrangement diagram, in Fig. 4 is a wagon movement diagram, in Fig. 5 is a diagram rope tension, Fig.6 is a cable grip, Fig.7 is a diagram of the operation of the shunting device with the upper branch of the rope, Fig.8 is a diagram of the operation of the shunting device with the incident lower branch of the rope.

The positions in the drawings are indicated by:

1 - drum;

2 - support;

3 - gear;

4 - electric motor;

5 - frame;

6 - mounting bolt;

8 - tension device;

9 - upper bracket;

10 - bottom bracket;

11 - hairpin;

12 - spring;

13 - a nut;

14 - roller;

15 - rope;

16 - upper branch of the rope;

17 - the lower branch of the rope;

18 - bypass block;

19 - the root end of the rope;

20 - running end of the rope;

21 - cable grip;

22 - railway tracks;

23 - wagon.

The shunting device comprises a drum 1 with a horizontal axis fixed for rotation in bearings 2 (for example, using radially spherical bearings) and connected through a gearbox 3 to an electric motor 4. The supports, gearbox and electric motor are mounted on a common frame 5, on which under the drum the mounting bolt 6 and the lever 7 are fixed with the tension device 8 fixed at the end. The tension device comprises an upper bracket 9 connected to the lever 7 by means of a bolt, and a lower bracket 10 connected to the upper Using studs 11, the protruding ends of which are fitted with springs 12, drawn by nuts 13. The bracket 9 is made in the form of two horizontal plates interconnected with two vertical plates attached to the upper side, and the bracket 10 is a horizontal plate with two attached to bottom side with vertical plates. On the outer sides of the brackets between the vertical plates, rollers 14 are fixed with a semicircular profile of the outer surface corresponding to the cross section of the rope 15. The drum is made in the form of an anchor spire providing an infinite rope capacity. 1 The rope is not fixed to the drum but wound (3-4 turns) in this way that the free ends extend to one side, forming the upper 16 and lower 17 branches extending between the rollers of the tensioning device parallel to the railway tracks 22. The upper branch of the rope coming out of the tensioning device -keeping, encloses a bypass unit 18, situated opposite the drum at a distance corresponding shunting movements and returned back to the drum, forming a root end 19 with a loop. The lower branch of the rope, resting on the lower roller of the tensioner, extends along the root end of the rope and forms the running end 20. The root and running ends of the rope are interconnected by a cable grip 21, which serves to attach the rope to the towed car 23. The bypass block 18 is made in the shape of the anchor spire to eliminate rope slipping during operation. one

Preparation of the shunting device for operation is as follows. The frame 5 with the nodes fixed on it and the bypass block 18 are placed on the base (soil or concrete floor) next to the railway tracks 22 at a distance from each other slightly exceeding the towing length of the car 23 or composition. At the root (initial) end 19 of the new rope 15, a loop is made in the bay and fastened to the frame 5 by means of a mounting bolt 6. Then, the rope is unwound from the bay towards the bypass block 18, forming the lower branch of the rope 17, bend around the side surface of the block and already further unwinding of the rope from the bay is performed in the opposite direction, that is, towards the drum 1, forming the upper 16 branch of the rope. The running end 20 of the rope brought to the drum is brought up from the top right to the drum, 3-4 turns of the rope are made around it, and then they are brought out from the bottom of the drum to the side of the root end. Next, a voltage is applied to the electric motor 4, ensuring the rotation of the drum and the movement of the rope from the main to the running end, while simultaneously pulling (for example, manually) the lower, runaway branch to provide the necessary friction force by; drum and better rope tension. The running and root ends of the tensioned rope are connected to each other at a distance of 3-3.5 m from the frame using a cable grip 21, after which the polarity of the voltage supplied to the electric motor is changed, which ensures the rotation of the drum in the opposite direction. As a result, the upper branch of the rope escapes from the drum, and the lower runs onto the drum, the movement of the rope is performed until the root end is moved by an amount sufficient to disconnect the loop of the root end from the frame (for which the mounting bolt is removed). Then the non-working ends are shortened and fixed on the lower branch of the rope for reliable: eliminating their engagement for any obstacles during the operation of the shunting device, and also move the cable grip from the drum to a distance of 6-7 m.The final stage of installation is the installation of the tensioner. Install the upper bracket 9 under the upper branch of the rope near the drum so that the rope is located between the vertical; by the bracket plates, a roller 14 is mounted on top of the bracket. Between the horizontal plates, the upper end of the lever 7 is fixed, the lower end of which is attached to the frame 5. Next to the upper bracket 9 with the help of pins; 11 attach the lower bracket 10, while the ends of the studs protruding beyond the horizontal plate of the upper bracket, put on the springs 12 and tighten the nuts 13. Start the lower branch of the rope between the vertical plates of the lower bracket, and lower the bracket 14, install the roller 14, then tighten the nuts 13 on the studs 11 to create the necessary tension of the rope 15 and eliminate its slipping on the drum 1.

The inventive utility model works as follows. A railway carriage 23, or a whole train located on the railway tracks 22, running parallel to the rope, is attached to the cable grab 21. If it is necessary to tow the load in the direction from the drum 1 to the bypass block 18, the electric motor 4 is turned on so that the upper branch 16 of the rope runs on the drum, at this time the rollers 14 hold the tension mechanism on the stretched branch 16 and pull the lower (runaway) branch 17 to top, creating the necessary friction between the turns of the rope and the drum. If it is necessary to tow the cargo in the opposite direction (from the bypass unit to the drum 1), the direction of rotation of the electric motor is changed, as a result of which the lower branch becomes oncoming and acquires maximum straightness. The lower roller holds the tension mechanism at the lower branch of the rope, and thanks to the action of the springs, the upper roller acts on the upper (runaway) branch of the rope and pulls it to the incoming, maintaining the necessary friction between the turns of the rope and the drum.

A shunting device of the proposed design was tested with a drum with a diameter of 550 mm, an angular rotation speed of 2.6 rpm, providing a rope speed of 0.075 m / s. The electric motor power of 15 kW transmitted to the drum through a planetary gearbox made it possible to achieve a pulling force of 100 kN (10000 kgf), sufficient to move the train with a total mass of 750 tons. The maximum distance from the drum to the bypass block, corresponding to the length of the working section of the rope movement, is 230 m, with a total rope length of 500 m.

Claims (2)

1. A shunting device comprising an electric motor, a gearbox and a drum, mounted on a frame located on the base, a bypass unit located on the base at a distance from the frame, an endless rope wound on and off branches, wound on a drum, and the rope goes around the bypass block, tension a device with two spring-loaded rollers attached to the frame, characterized in that the incoming and outgoing branches of the rope are directed in one direction, and the tensioning device is configured to clamp the branches of the rope to each other . 2. The device according to claim 1, characterized in that the tensioner comprises upper and lower brackets interconnected by two vertical studs and pressed against each other by springs located on the upper ends of the studs, while rollers are fixed on the outer sides of the brackets, and the connection of the tensioner with the frame is made in the form of a pivot arm attached to the upper bracket.