SU1234619A1 - Traveling gear of entry-driving machine - Google Patents

Description

The invention relates to the mining industry, in particular, to running gear devices of roadheaders of selective action.

The aim of the invention is to increase the lateral rigidity of the walking mechanism and increase the reliability of operation in uneven soil.

FIG. 1 schematically shows a running gear, side view; in fig. 2 cross section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 shows a possible embodiment of the device; in fig. 5 shows a section B-B in FIG. four.

The chassis includes a housing 1 (Figs. 1, 2, 3) with axles 2 and a shaft 3, levers 4 on the axles and on the shaft two shoulders, on the axes of which there are support rollers 5 in contact with the lower and upper longitudinal beams of the skis 6, as well as a lift hydraulic cylinder 7, two stepping 8 cylinders and a connecting link 9. The hydraulic cylinder 7 is pivotally connected to the housing 1 and the connecting link 9, and the hydraulic cylinders 8 to the housing 1 and to the skis 6. In this case, the housing 1, vertical shoulders of two shoulders the levers 4 and the link 9 form a hinged fourstems, kinematically connected with the housing 1 through the hydraulic cylinder 7 lift. The right and left skis 6 contain parallel longitudinal beams — the lower 10 and the upper 11, rigidly connected by vertical 12 and oblique 13 links. With the upper and lower beams of the ski, the support rollers 5 are constantly in contact, each of which is made with two flanges covering the beams 10, 11 from the sides. The upper beam 11 of each ski 6 is placed between the cheeks of the vertical arms of the levers 4 (FIGS. 2, 3, 5), and between the cheeks of the horizontal arms there are support rollers 5.

The proposed chassis works as follows.

When the working stroke is forward (from right to left, see Fig. 1) by means of a lift hydraulic cylinder 7 (its stem is extended), skis 6 rest on the ground, and the body 1 is raised and moved forward by the value of the hydraulic cylinders 8.

Then, by means of a hydraulic cylinder 7 (its rod is drawn in), body 1 is lowered onto the ground, and the skis are raised and pulled by hydraulic cylinders 8, where by means of hydraulic cylinder 7 they are lowered onto the ground again and the walking cycle is repeated. In case of destruction by the executive body of the combine, the rocks of the hull and the skis rest on the ground, which ensures better stability of the machine in case of weak soils.

The backward stroke (from left to right, see Fig. 1) is carried out similarly to the forward motion, but this changes the direction of supply of the working fluid to the hydraulic cylinders 8 to the opposite stroke.

The combine is turned to the left when both skis 6 are supported on the ground and the raised housing 1 by turning on the right hydraulic cylinder 8 for the forward stroke and for the left hydraulic cylinder 8 for the reverse. When turning to the right, the left hydrocyclipry 8 is turned on for the forward course, and the right one - for the reverse.

High transverse rigidity of the mechanism, the possibility of lifting the hull and skis before moving them ensures reliable operation of the undercarriage in uneven soils.

Shunting movements of the combine with increased speed (when the executive body is not operating) are carried out by using the overall performance of its pumping station.

With the design of the undercarriage without a transverse shaft 3, but with four cantilever axles 2 (Fig. 4, 5), the number of hydraulic cylinders 7 increases to two units, one for each side. The principle of operation of the undercarriage is similar to that described with the only difference that lifting and lowering the hull or skis is done not by one but by two hydraulic cylinders 7. If axles 2 are replaced by two shafts 3, then one hydraulic cylinder 7 is also sufficient.

Combine harvesters equipped with the proposed chassis can be used during the excavation with a sliding stroke and following the downhole, as well as during the excavation with a narrow face.

Xl -A

FIG. 2

FIG. 3

 five

eleven

FIG. five

Editor N. Shvydka Order 2697/40

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Compiled by V. Ponomarev

Tehred I. VeresKorrektor V. Butt ha

Circulation 470 Subscription

Claims (1)

WALKING DEVICE OF THE COMBINING COMBINE, including the body, right and left skis, kinematically connected to the body through the walking cylinders and two shoulders, one of whose shoulders is connected to the lifting hydraulic cylinders, characterized in that, in order to increase the lateral rigidity of the walking mechanism and increase the reliability of operation uneven soil, the running gear is equipped with track rollers with side flanges mounted on the end of the other shoulders of the two-arm levers with the possibility of rotation and connected movably with the skis, and ach ski provided with upper and lower beams interconnected by webs and arranged between the lateral flanged rollers, wherein the shoulders of two-armed levers carrying the support rollers are arranged at an acute angle to the arms, associated with the lift guide rotsilindrami. lo az фигο fig: 7>