SU1641949A1 - Working member of earth-moving machine - Google Patents

Abstract

This invention relates to earth moving machinery. The purpose of the invention is to increase the productivity and sustainability of the working body. The working body includes a drive end-mounted cutting body (PO) mounted on the frame in the form of a wheel 11 consisting of a rim, knitting needles and a hub 14, equipped with a conical fairing. Cutting elements 15 are mounted on the rim and knitting needles. A disk thrower is placed behind the end PO. The planes of the face PO and the thrower disc 10 are located at an angle to the longitudinal axis of the tool and are rotatably mounted in opposite directions. The diameters of the wheel 11 PO and disk 10 throwers are determined from the ratio d (D tg a-2fy tg a, where d is the diameter of the thrower disk, m; D is the diameter of the wheel of the working body, m; a is the angle of the working body and disk thrower, deg; d is the normal distance between the working body and the disk thrower, m. When the drive 2 is turned on, rotation through gear 3 is transmitted to shaft 4 and through gears 5, 6 to gears 7, 8, which transmit rotation 11 to wheel PO and disk 10 throwers. Due to the rotation of the wheel 11 and the disk 10 in different directions of the reaction from the development of soil and its methane directed in different directions, which ensures the stability of the working body. 5 ill. and about

Description

The invention relates to earth-moving equipment, namely, to earth-moving machines of continuous action, and can be used as a manual mechanized earth-moving tool.

The purpose of the invention is to increase the productivity and sustainability of the working body.

FIG. 1 shows the working body, a general view; figure 2 is the same, side view; FIG. 3 is a kinematic diagram of a tool drive; in fig. 4 is a view A of FIG. 2; in fig. 5 shows the trajectory of movement of a single cutting element.

The working member is mounted on frame 1 and has a drive 2. The output shaft of drive 2 through gear 3 (e.g. gimbal) is connected to shaft 4, on which are tapered gear 5 with number of teeth Zs and tapered gear 6 with number of teeth Ze, which are meshed with a bevel wheel 7 with the number of teeth Z and a bevel wheel 8 with a number of teeth Ze, and gear 5 interacts with wheel 7 and gear b with wheel 8. Wheels 7 and 8 are mounted coaxially and connected respectively: wheel 8 by means of shaft 9 - to the working body located forward and thrower disc in the direction of longitudinal movement of the tool, and with oscillation of 7 - Disk 10 thrower disc diameter d.

The end piece is made in the form of a wheel 11 with a diameter D, consisting of a rim 12, diameters of the spokes 13 and a hub 14, equipped with a conical fairing. On the rim and the spokes of the working body mounted cutting elements 15 height h. Disc thrower is equipped with transporting elements in the form of blades located radially on the frontal surface of the disk. The tool and the disk thrower are mounted at an angle a to the surface of the developed bore with a slope in the direction opposite to the direction of movement of the power tool, and there is a gap d between the wheel 11 and the disk 10. installed at such a distance that when the tool is operated with a given angle of inclination and the disk thrower does not wipe the bottom surface.

The frame 1 rests on the bottom of the front wheel 16. The gear 7 and the disk 10 are mounted on the shaft 9 on the bearings 17. As the disk 10 is located behind the wheel 11 on the distance e, then to ensure their performance

D tg a - 2 d

where d is the diameter of the disk metatel;

D is the diameter of the wheel of the working body;

a is the angle of inclination of the working body and the thrower relative to the soil surface;

e is the normal distance between the working body and the disk thrower.

When developing a soil with a mechanized earth-moving tool, in order to achieve maximum performance, linear velocity v must meet the condition (see Fig. 5), based on the fact that each cutting element develops soil to its full height R

v-f.O)

where h is the height of the cutting tool 15;

t is the turnover time of the working body wheel, which is determined from the condition

(2)

where o) h - the angular velocity of the wheel 11.

Taking into account formulas (1) and (2), determine the angular velocity of rotation of the wheel of the working body

“-

(3)

those. if, for example, v 60 m / h, a h 0.05 m, then

- - 2 P -60 2 /

one 3600 -0.05 zLGrad / S

or

ZOCHAZ 30-2l 3-l

 20 minutes

-one

If you take the gear ratio from the drive 2 to the disc 10 throwers

".-I

gear ratio from drive 2 on the wheel

Zs 12 U2 y-, then for optimal design

Ј-6

the soil must be observed and within the limits -. what

leads to the development of soil with the highest productivity.

Mechanized earthmoving tools works as follows.

When the drive is turned on, the rotation through gear 3 is transmitted to shaft 4 and through gears 5 and 6 to gears 7 and 8, which transmit the rotation of the working element wheel 11 and the thrower disk 10, and the wheel 11 and thrower disk 10 rotate in different directions, respectively different angular velocities of cos and um.

By rotating the frame 1 around the wheel 16, the working tool is inserted into the ground to a predetermined depth H, the required angle is set

slope a and give it a translational speed of motion v. The soil is developed by the cutting elements 15 of the working body: on. As a result of the inclination of the plane of the wheel 11 and the disk at an angle a, the entire destroyed soil under the force of gravity enters the disk 10 and is carried out from the bottom by transporting vanes, which greatly improves the performance of the mechanized tool. Since the wheels H1 and the disk 10 rotate in different directions, the reactions from the development of the soil and its methane are directed in different directions, compensating each other, which ensures the directional stability of the mechanized earth-moving tool.

Claims (1)

The invention The working body of the earthmoving machine, including a drive end cutting unit mounted on the frame with a conical fairing, made in the form of a wheel connected to the hub by diametrically positioned spokes attached to them 0 five 0 elements, and a disc thrower placed behind the cutting body, characterized in that, in order to increase the productivity and stability of the working body, the plane of the face cutting body and the thrower disc are angled to the longitudinal axis of the working body, are rotatably mounted in opposite directions, and the diameters of the wheel of the cutting organ and the thrower disc are determined from the ratio D tg a - 2 6 tg and where d is the diameter of the thrower disk, m; D is the diameter of the wheel of the working body, m; a - the angle of inclination of the working body and disk thrower, hail; d is the normal distance between the working body and the disk thrower, m, and the gear ratios are related to the ratio Ua / Ui 8 ... 10, where Ui is the gear ratio of the drive and thrower; gear ratio of the drive and the cutting body. /// /// / 7, Fig.1 16 (Y 2 f FIG. five