RU2690303C2 - Method for increasing support-coupling crossability of track-laying machine - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: invention relates to methods of increasing track-coupling crossability of tracked vehicles. Track-type part of caterpillar vehicle is equipped with rollers with additional grousers automatically extended during movement of extension wheels by means of pneumatic system of machine.

EFFECT: higher coupling properties of caterpillar vehicle.

1 cl, 1 dwg

Description

The invention relates to the field of technology, in particular to methods for increasing the supporting-coupling patency of tracked vehicles (hereinafter - GM).

There is a method of increasing the GM's cross-grip, in which the chassis is supplied with an additional removable platform with rollers and tracks, fastened with a fastening fixedly with the machine, so that when the reverse gear is engaged on the machine, the platform with the machine moves forward along the ground (see RF Patent for invention No. 2438090, IPC ⁷ F 41, published on 12/27/2011. Open edition).

In addition, there is a method of increasing the GM's cross-coupling ability, which consists in the following: in order to increase the passability on soils with low bearing capacity, the GM chassis is supplied with additional support rollers with tracks that are attached to the support rollers, moving them with the main chassis, moving the body GM on the ground (see. RF patent for the invention №2438091, IPC ⁷ F 41, published 12/27/2011, the Open Edition. Prototype).

A known method of increasing the GM's coupling ability to cross allows reducing the specific pressure of GM on the ground, increasing its permeability when moving on soils with low bearing capacity (wetland, deep snow cover, etc.). However, this method has several disadvantages:

- additional equipment GM increases its total weight, which also leads to an increase in the specific pressure on the ground;

- the process of increasing the surface area of the GM when it moves along the ground is not automated and for its equipment (retrofit) additional equipment requires a certain time and labor costs;

- it does not allow to sufficiently increase the proportion of the terrain area that is accessible to tracked vehicles, which leads to the need to avoid obstacles and increase the time to overcome them.

The objective of the present invention is to increase the GM's supporting hitch patency, automating the process of increasing the GM's supporting-hub area during its movement, significantly reducing the ground pressure when moving along low bearing capacity soils, reducing the time to overcome obstacles.

The technical result of the proposed invention is to increase the support-coupling patency of the GM by reducing its specific pressure on the ground and increasing the adhesion properties of a tracked propulsor with the underlying surface, reducing the time to overcome obstacles.

The technical solution of the proposed invention is to increase the surface area of the GM and the adhesion properties of the caterpillar branch, due to the use of machine expanders supported by the pneumatic system of the road wheels, ensuring its high permeability on soils with low bearing capacity.

A method for increasing the area of the fifth wheel coupling surface of a caterpillar machine is that the crawler machine chassis is equipped with automatically deployable support rollers with additional lugs when moving with the expander, using a machine pneumatic system, which extends and retracts the followers of the support rollers, which increase the supporting surface of the running gear and its coupling properties when driving a car on low load bearing soils.

The invention is illustrated in FIG. 1, which shows a device providing a method for increasing the support-coupling patency of a GM where: 1 is an additional lug; 2 - mount with a return spring; 3 - track roller; 4 - air supply head; 5 - pipeline; 6 - balancer; 7 - machine body; 8 - pneumatic system; 9 - ground; 10 - pneumatic cylinder; 11 - piston with rod; 12 - the bearing; 13 - additional roller; 14 - additional expander; 15 - caterpillar.

) показано направление раскладывания дополнительных уширителей 14, стрелкой (

) направление выдвижения дополнительного катка 13.Arrows (

) shows the direction of folding of additional expanders 14, the arrow (

) the direction of the extension of the additional rink 13.

When GM is moving along the ground 9 with a low bearing capacity, its supporting rollers 3 are rotating, which are elements of a tracked propulsor (running gear) and movable supports of the GM 7 hull. The supporting roller 3 is designed to transmit gravity from the GM 7 hull mass through the balance bar 6 to the track 15 and further to the ground 9. The support roller 3 is connected to the additional expander 14 by fastening with a return spring 2. The additional expander 14 is designed to provide additional support for the undercarriage and has additional soil The chain 1, which in turn is designed to increase the adhesion properties of the chassis of the machine with the ground 9. Inside the support roller 3 there is an air cylinder 10, in which the piston moves movably with the rod 11. Also, the pneumatic cylinder 10 is connected via an air supply head 4 through a pipeline 5 with pneumatic system 8 cars. Head air supply 4 is designed to ensure the tightness of the movable connection of the pipeline 5. With the help of a pneumatic system 8 air under pressure is fed into the cavity of the pneumatic cylinder 10 and presses on the piston with the rod 11, which is rigidly connected to the additional roller 13. Additional roller 13 moving away from the supporting roller 3 through the bearing 12 interacts with the additional expander 14, pushing it to the side (lifting) in position parallel to the track 15. This provides additional support for the undercarriage and the aetsya traction 9. Closure additional wideners 14 occurs when the air cylinder 10 in the absence of air pressure and optional roller 13 under the influence of a fastening force of the return spring 2 returns to its original position, moving with the piston rod 11 in its initial position.

An example of the method. When GM is moving along the ground 9 with a low bearing capacity, its supporting rollers 3 are connected, which are connected through the balancers 6 to the body of the machine 7 and the track 15. The supporting roller 3 is connected to the additional expander 14 by fastening to the return spring 2, which has an additional lug 1. Inside the supporting roller 3 is the pneumatic cylinder 10, in which the piston with the rod 11 is movably located. The pneumatic cylinder 10 is connected through the air supply head 4 by means of the pipeline 5 to the pneumatic system 8 of the machine, from which the air is under pressure It is fed into the cavity of the pneumatic cylinder 10 and presses on the piston with the rod 11, which is rigidly connected to the additional roller 13 and moves away from the supporting roller 3 through the bearing 12 interacting with the additional expander 14, pushing it sideways (raising) to the position parallel to the track 15 The closure of the additional expanders 14 occurs when there is no air pressure in the pneumatic cylinder 10, while the additional roller 13 under the influence of the attachment force with the return spring 2 returns to its original position, moving This piston with the rod 11 is also in its original position.

The proposed method allows you to automatically, when driving GM to increase the area of the supporting surface, the coefficient of adhesion of a crawler propulsion with the ground, reducing the specific pressure on the ground when driving on soils with low bearing capacity, reduce the time to overcome obstacles.

Literature

1. RF patent for invention No. 2438090, IPC ⁷ F 41, published on December 27, 2011. Open edition.

2. RF patent for invention No. 2438091, IPC ⁷ F 41, published on December 27, 2011. Open edition.

Claims (1)

A method for increasing the area of the coupling surface of a tracked vehicle, which consists in providing the undercarriage of a tracked vehicle with automatically extending support rollers with additional lugs when moving with the expander, using a machine pneumatic system, which extends and retracts the expander of the supporting rollers, allowing the support surface of the undercarriage to be increased and retarded. its coupling properties when driving a car on low load bearing soils.

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