RU2700298C1 - Frontal portal type machine for soil treatment - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: invention relates to railway track maintenance, particularly, to soil treatment machine. Frontal portal type machine comprises frame mounted on running platforms on rail. On the platforms there are retractable propellers for movement along the soil. On frame there installed is support-rotary mechanism with boom and device for cutting of soil. Frame is made in the form of backbone beam.

EFFECT: improved maneuverability and controllability of the machine.

4 cl, 6 dwg

Description

A portal-type frontal machine for cutting the surface soil layer (hereinafter referred to as the frontal machine) belongs to the railway field of technology, and specifically to special track machines working with the soil when arranging the railway track.

According to the prior art, a frontal machine refers to a set of devices intended for cutting out a contaminated ballast layer during repair of a railway track, including replacement of a rail sleeper or turnouts.

This proposal is industrially applicable, since when constructing the frontal machine, structural elements known in world technology, methods and techniques were used.

From the information on the level of technology of existing similar machines of the frontal type, the device “Frontal type machine for cutting the surface layer of soil” RU No. 2634059 of 2016, for soil treatment of railway tracks, which can be used for cutting ballast when replacing turnouts, is known.

This technical solution served as an analogue to the proposed device of the front-type machine.

The disadvantage of the design of the selected analogue is that when the machine is operating, a tilting moment appears due to the cantilever arrangement of the working body, which negatively affects the stability of the machine as a whole and contributes to the formation of a "wavy" soil surface after processing. In addition, this arrangement does not allow optimally and safely positioning the cab with the operator and machine controls.

The proposed front-end machine on a combined stroke (the main stroke is rail and the additional one is on the ground) has a portal-type frame supported at one end through a rotary device to the front platform (on the rail) and the second end also through the rotary device to the rear platform (on the rail) . This technical solution makes it possible to place the working body of the machine between two supports, which increases the stability of the machine and the quality of surface treatment.

At the same time, an additional support-rotary mechanism mounted on the frame allows you to fix the boom in the form of a suspension with a device for cutting soil, which moves along the transport conveyor to an intermediate conveyor, and the machine frame is made in the form of a spinal beam of a portal type, creating free space for placement of the working body of the machine - devices for cutting soil.

In addition, it creates the possibility of placing a cabin with an operator and a control panel of the working body on the front platform. There is also room for a second motion control cabin for the entire machine.

The location of the rotary support devices between the frame and the running platforms reduces the base of the machine, and this allows you to move along railway curves of small radius due to these rotary devices on the front and rear platforms having two railway carts fixed on the platform while moving on the ground.

Rail trolleys on running platforms are installed with the possibility of arranging dirt propulsion devices between them.

The presence of two railway trolleys on each platform provides an even distribution of the load on the rails and allows the machine to pass places of different levels between the surface of the cut soil and the level of the rail head (UGR) in both directions. This happens in the following order:

- when driving on rails, the front platform of the machine extends beyond the edge of the rail and hangs over the ground with the first bogie (fixed on the platform frame) and the mover on the ground (hereinafter mover), and the second bogie rests on the rail and stops;

- the second trolley is fixed on the frame;

- after that, the mover extends, creating support on the ground;

- then the machine moves the front platform along the ground, and the rear along the rails, while the soil begins to be processed by the working body at the time of its overhang;

- at the time of hovering over the ground of the rear platform with its first railway trolley (fixed on the platform frame) and the mover, the machine stops, resting the second trolley on the rails;

- the second trolley is fixed on the frame;

- the mover of the rear platform extends, creating support on the ground, and the machine continues to move completely completely on the ground;

- a trailed module with conveyor belts with the same principle of movement moves with the machine. Depending on the volume of soil to be cut, there may be several trailed modules;

- installation of the machine on rails is carried out sequentially in the reverse order, either in the direction of travel, or returning back to the original path.

The technical result when using the proposed design of the machine frontal portal type for soil treatment is:

- increasing the stability of the machine both in the working position and in the transport due to the proposed layout solutions for the placement of units for a more uniform distribution of the load on the ground;

- a rationally organized area for placement of the working body and the cabin with the control panel;

- an easier way to transfer the working body from the transport position to the working one and vice versa;

- a step-by-step algorithm for the transition of the machine from the rail to the ground and from the ground to the rails;

- improving the maneuverability and controllability of the machine;

- the possibility of passing curves of small radius on the railway.

As a result of the technical result achieved, a socially useful effect when using the proposed frontal machine design is the elimination of dangerous factors associated with the machine operator being in an area that poses a threat to his life and health, that is, improved working conditions. In addition, more comfortable working conditions under adverse climatic conditions (rain, snow, wind) reduce fatigue and contribute to increased labor productivity.

The technical result from the use of the frontal machine is achieved due to the special design of the device, which in its composition contains:

Frame - 1, Front undercarriage - 2, Rear undercarriage - 3, Crawler or wheel type movers - 4, Operator's cabin with a control panel for the working body - 5, Operator's cabin with a control panel for the machine - 6, Slewing-swing mechanism - 7, Bucket rotor - 8, First trolley of front platform - 9, Second trolley of front platform - 10, First trolley of rear platform - 11, Second trolley of rear platform - 12, Additional slewing gear - 13.

The technical nature of the proposed design, and its device, is illustrated by the figure of FIG. 1 (Operating position), FIG. 2 (Top view), FIG. 3 (Transport position), FIG. 4 (Passage of railway curves of small radius), FIG. 5, FIG. 6 (moving the machine to the ground).

In the proposed design, the frame type 1 (Fig. 1, 2) of the portal type is installed on the front and rear running platforms 2 and 3 through an articulated joint of the slewing-rotary devices 7. On platforms 2 and 3, two railway carts are installed - 9, 10 and 11, 12, which, in turn, rest on the rails of the railway track. This design scheme ensures the prompt delivery of the machine to the place of work on the railway track, while fulfilling the requirements for the size of the rolling stock, as the machine is in transport position.

On platforms 2 and 3 between the trolleys are located movers on the ground 4, which can be in different positions: transport, working and intermediate (in working position). The working body 8 for processing the surface of the soil is fixed (suspended) on the frame 1 through a rotary support device and can occupy a transport or working position.

After the frontal vehicle arrives by rail to the place of work and the turnout is removed using special equipment (Fig. 3), the machine begins to extend along the railway track to the open section until the front suspension platform 2 partially hangs over the ground with its first carriage 9 and mover 4, moreover, carriage 9 by this moment it should be fixed on the platform, and the second trolley 10 should remain on the rails, providing support for the machine. In this position, the machine is stopped, the second trolley 10 is fixed and the mover 4 of the front platform is extended to support the ground (Fig. 5).

After that, the machine begins to move on the ground with the first running platform (the second platform moves along the rails) until the working body 8 hangs over the ground, which at that moment starts its work. Then, after moving the machine during operation, the first carriage 11 of the rear platform and mover 4 overhangs the ground, a short stop is made (Fig. 6) to extend the mover 4 to the ground (the carriage 11 must be previously fixed on the navigation platform 3). At the same time, the trolley 12 is fixed on the platform 3. Next, the machine continues to work on cutting contaminated soil completely on soil movers (Fig. 1).

When the front running platform 2 approaches the beginning of the rail track, the operator controlling the movement of the machine provides the overhang of the first truck 9 and the alignment of its axis over the axis of the track. The machine is stopped and the mover is lifted, while the trolley 9 is lowered onto the rails and removed from the clamps, providing the machine support on the rail track. Next, the processing of the soil continues to the required level, the installation of the second trolley 10 on the rails, removing it from fixation and moving the working body 8 to the transport position.

The installation of the rear running platform 3 on the rails is carried out similarly to the installation of the front platform 2. Further, the machine moves completely along the rail and has the ability to pass small radius curves due to the proposed structural design of the frame 1 and running platforms 2 and 3 (Fig. 4).

Thus, the track section for the operation of other machines is quickly freed, ensuring the cyclical use of the track equipment.

Claims (4)

1. Front-type machine for cutting the surface layer of the soil, consisting of a frame mounted on the front and rear running platforms on a rail, on which retractable movers are placed for autonomous movement of the machine on the ground in places where the rail lash has already been removed, mounted on the frame - a rotary mechanism with an arrow and a device for cutting soil placed on it, which moves along a transport conveyor to an intermediate conveyor, characterized in that the machine frame is made in the form of a spinal bulk portal type, creates a free space to accommodate the working member of the machine - for soil cutting device. 2. The machine is a frontal type according to claim 1, in which between the frame and the running platforms there are rotary support devices that allow the machine to move along small-radius railway curves. 3. The machine is a frontal type according to claim 1, on the running platforms of which two railway bogies are installed, between which are located the movers of the ground track. 4. The front-type machine according to claim 1, in which the slewing gear with the boom and the device for cutting soil placed on it can be made in the form of a suspension to the frame of the machine.

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