SU645611A3 - Cutter-loader - Google Patents

Description

(54) MINING COMBINE

one

The invention relates to the mining industry and is intended for use in mining operations.

Known mining harvester, including a swept executive body, loading body and tracked undercarriage with lowered support device 1.

The specified combine does not provide the undermining of the soil below the support plane of the tracked track and the additional support of the loading body on the working soil.

A mountain combine is known, including a frame mounted on a crawler chassis, an arrow-shaped executive body and a loading body, the body of which is rotatable mounted on a frame around an axis perpendicular to the longitudinal axis of the combine, and connected to the frame by a power cylinder

t.

When the swept actuator is rotated, the perception of reaction forces to the harvester is hampered by the tracked drive and often there is a tilting movement in the transverse direction.

The aim of the invention is to increase the stability of the combine.

The goal is achieved by the fact that the axis of rotation of the body of the loading body

placed behind the axle of the forward track roller of the track, and the junction of the power cylinder with the body of the loading body is removed from the axis of rotation by a quarter of the total length of the body

loading body, providing the possibility of lowering the body of the loading body below the support plane of the tracked track. Pa figs. 1 depicts the described mining combine, side view; in fig. 2 - the same in terms of; in fig. 3 - supporting unit.

On the frame 1 of the combine, an actuator in the form of an arrow 2 with a cutting head 3 is mounted. A loading body 4 is located below the boom 2 and is rotatably mounted in height around the horizontal axis 5 on the frame 1. The loading body 4 has an almost roof-like surface, the ridge edge of which is indicated by the position 6. Thanks to this form

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A sweeping cutting edge 7, ending with a sweeping end 8, is obtained. The repulsed material is loaded with scooping legs 9 onto the loading body upwards onto the scraper conveyor belt 10. The combine frame 1 is mounted on the crawler track 11. The front driving chains of caterpillars are marked with 12, and rear - position 13.

The working surfaces 14 of the tracks And define the reference plane 15 of movement. The loading body can be lowered to such an extent that its cutting edge 7 and the arrowed end of 8 cutting edges lie below this moving anchor plane 15. The magnitude A, on which the swept end 8 in the lowest position is below the reference plane 15, is approximately 8 cm. It is recommended that the arrow-shaped cutting edge is located in a plane 16 touching the rear end 17 of the working surface of the tracks 11. Thus, in the extreme lower or lower position of progruzochnaya body 4, in which the combine rests on the arrow-shaped cutting edge 7 and on the rear ends of the 17 tracks 11, the cutting edge is completely adjacent to the plane 16 of the base. Due to this, on the one hand, a good cleaning effect is achieved, and on the other hand, a base is planned with these cutting edges, which is also a condition for a good cleaning effect. In the working position, in which the combine is under load, the boom 2 has a stable support, and despite this, the combine has the ability to move forward at the rear ends of the 17 tracks 11, and the cutting edge 7 clears the plane 16.

Position 18 marked support device installed behind the tracks 11. Support device 18 consists of a sled shoe 19, pivotally mounted with the possibility of rotation on the two shoulder arm 20 around the axis 21 (see. Fig. 3). The lever 20 is rotatably mounted on the frame 1 around the axis 22 in the area of the rear drive chain sprockets 13 caterpillars. On the second shoulder 23 of this lever, in position 24, an assembly of hydraulic cylinders 25 is installed. The shoe 19 of the support device 18, as shown by the dotted line in FIG. 2 is mounted behind the tracks 11 in the middle of the chassis. Support device 18

has the ability to lower, so that the rear support moves backward, so that in the working position, the stability of the combine increases. Since the soil can be uneven, the lowering of the support device is chosen relatively large. The shoe 19 may, for example, be lowered 200 mm below the working surface of the tracks AND, defined by the reference plane 15.

The hinge axis 5 of the loading body 4 is mounted behind the forward guiding sprockets 12 tracks I. For lowering the loading body 4 is provided

the mechanism of the hydraulic cylinders 26, associated with the loading body at point 27. Due to the return displacement of the hinge axis 5 of the load body 4 and the fact that the place of the hinge connection at point 27

the mechanism of the hydraulic cylinders 26 is located at a relatively large distance from this hinge axis 5, and the fact that the axis of the mechanism of the hydraulic cylinders 26 lies almost vertically on the loading

The body has a beneficial effect of great lifting forces. The distance from point 27 to the hinge axis 5 of the loading device on the frame corresponds to a quarter of the total length of the body of the loading body.

4, measured from the hinge axis 5 to the sharp end 8 of the cutting edges 7.

Claims (2)

1. USSR Author's Certificate No. 431305, cl. E 21S 27/24, 1971. 2. USSR author's certificate number 415365, cl. E 21S 27/24, 1972. / 5/7 il / 4 5 12 / B 27 15 4 f3 19 FIG.