RU148300U1 - RAIL TROLLEY - Google Patents

Abstract

1. A rail trolley containing a frame and wheel modules in which wheels with flanges are mounted on the axles, characterized in that at least two wheel modules are equipped with stoppers, each of which is made in the form of a rotary clamp, which ensures interaction with the lower surface of the rail, with a pivot axis located at the level of the frame, and a pivot arm fixing the position of the clamp, with a pivot axis located at the level of the wheel axis. 2. A rail trolley according to claim 1, characterized in that a curved groove is made in the lever, along which a pin fixed to the clamp passes until it stops in the working position. A rail trolley according to claim 1, characterized in that each wheel module is equipped with a stopper.

Description

The utility model relates to auxiliary railway equipment, namely, to rail trolleys and is intended for the transport of equipment and goods during work on and near railway lines.

A rail trolley is known from the prior art, comprising a frame and wheel modules in which wheels with flanges are mounted on the axles (see patent RU 116440, class B61K 13/00, published May 27, 2012). A disadvantage of the known device is the danger of unexpected movement or even tipping of the trolley during, for example, construction work.

The objective of the utility model is to eliminate this drawback. The technical result consists in increasing the stability of the rail trolley in the working position. The problem is solved, and the technical result is achieved by the fact that in a rail trolley containing a frame and wheel modules, in which wheels with flanges are mounted on the axles, at least two wheel modules are equipped with stoppers, each of which is made in the form of a rotary clamp, providing in the working position, interaction with the bottom surface of the rail, with the pivot axis located at the level of the frame, and the pivot arm fixing the position of the clamp, with the pivot axis located at the level of the wheel axis. In the lever, a curved groove is preferably made, along which a pin fixed to the clip passes until it stops in the working position. Preferably, each wheel module is provided with a stopper.

In FIG. 1 shows a General view of the proposed rail trolley;

in FIG. 2 - a trolley with a crane mounted on it in a transport position;

in FIG. 3 - a trolley with a crane mounted on it in working position;

in FIG. 4 is a general view of the wheel module;

in FIG. 5 - sectional wheel module;

in FIG. 6 is a diagram of the interaction of stoppers with rails;

in FIG. 7-10 - successive positions when moving the stopper from the transport to the working position.

The proposed rail trolley consists of a frame 1, on the surface of which a deck 2 is formed that forms the cargo area, four wheel modules 3 and removable handles 4 for moving the trolley. Frame 1 perform sufficient strength and rigidity to provide the necessary carrying capacity of the trolley and the ability to install and operate technological equipment. In modules 3 on the axles 5 with the possibility of free rotation installed wheels 6 with flanges. Various removable and non-removable technological equipment can be installed on the trolley, for example, a hoisting mechanism, such as a crane-manipulator 7. At the same time, at least two wheel modules 3 must be equipped with stoppers, which simultaneously serve as a holding device and brake mechanisms and provide quick fixing the trolley on the railroad track to exclude the possibility of overturning or longitudinal displacement of the trolley during the production of lifting or other bot.

The design of the trolley does not allow its registration as a moving unit on the control device of the station duty officer. This provides protection against false shunting of the rail chain due to the fact that the wheel modules 3 are mounted on the frame 1 of the trolley through plates 8 of insulating material and the bolt fastening of the wheel modules 3 to the frame passes through the insulating windows. As an additional element of electrical insulation, all the wheels of the trolley are mounted on bushings 9 also of electrical insulating material.

The stops of the wheel modules 3 are made in the form of a rotary clamp 10 and a rotary lever 11. The clamp 10 provides in the working position interaction with the bottom surface of the rail (see Fig. 6, the clamping surfaces are marked with bold lines). The axis of rotation 12 of the clamp 10 is located at the level of the frame. The lever 11 fixes the position of the clamp 10. The axis of rotation 13 of the lever 11 is located at the level of the axis 5 of the wheel 6. In the lever 11, a curved groove 14 is made, along which a pin 15 is mounted to the stop in the working position, mounted on the clamp 10.

The fixation of the wheel module on the rail from vertical movement is ensured by introducing a clamp 10 (see Fig. 6) under the rail head, while also fixing the wheel module 3 from horizontal movement due to the flanges of the wheel 6. The absence of longitudinal rotation of the wheel 6 relative to the rail is achieved due to the simultaneous use of at least two stoppers located on the sides of the trolley opposite to the longitudinal axis. The longitudinal fixation of the wheel 6 on the rail (braking) is ensured by the elastic contact of the clip 10 with the neck of the rail.

Stop wheel modules 3 work as follows.

In the initial (transport) position (see Fig. 7), the clamp 10 is on the upper surface of the frame 1 and with its weight holds the lever 11 in the upper position. To transfer the clip 10 to the lower (working) position, it is rotated around axis 12.

Upon reaching the first intermediate position (see Fig. 8) due to the rotation of the clamp 10, the pin 15 placed on it, abutting against the edge of the guide groove 14, forces the lever 11 to begin a rotational movement about the axis 13. Further interaction of the lever 11 and the clamp 10 is due to the movement of the pin 15 along the guide groove 14 having a variable radius of curvature relative to axis 13. Thus, the rotation of the lever 11 on the axis 13 provides the rotation of the clamp 10 on the axis 12. The difference in the lengths of the arms in the system “lever 11 on the axis 13 / clamp 10 on the axis 12” provides dost exact clamping force to transfer to the operating position 10 (elastic interaction with the rail).

Upon reaching the second intermediate position (Fig. 9), in which the clamp 10 is in the lower (working) position, the pin 15 goes to the segment of the face of the guide groove 14 with a constant radius of curvature relative to the axis 13.

Further movement of the lever 11 up to the final position (see Fig. 10) does not lead to the movement of the clip 10 and ensures that the "lever 11 / clip 10" system is in equilibrium, in which the reverse movement of the clip 10 without additional translation of the lever 11 with the transition pin 15 to a curved section of the guide groove 14 is not possible.

The reverse sequential actions of the lever 11 and the clamp 10 lead to the translation of the stopper to the initial (transport) position and provide unimpeded movement of the trolley along the rails, as well as its subsequent dismantling from them.

Thus, the proposed utility model allows to increase the stability of the rail trolley in the working position and to carry out, for example, lifting work using a crane-manipulator installed on it. At the same time, the location of the clamping axes and the lever at various levels provide high reliability of the locking of the stopper.

Claims (3)

1. A rail trolley containing a frame and wheel modules in which wheels with flanges are mounted on the axles, characterized in that at least two wheel modules are equipped with stoppers, each of which is made in the form of a rotary clamp, which ensures interaction with the lower surface of the rail, with a pivot axis located at the level of the frame, and a pivot arm fixing the position of the clip, with a pivot axis located at the level of the wheel axis. 2. A rail trolley according to claim 1, characterized in that a curved groove is made in the lever, along which a pin fixed to the clamp passes to a stop in the working position. 3. Rail trolley according to claim 1, characterized in that each wheel module is equipped with a stopper.

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