SU787558A1 - Working member of soil-shifting machine - Google Patents

Description

(54) WORK BODY OF THE DIGGER MACHINE

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The invention relates to earthmoving machinery, in particular, to working bodies of continuous action in the form of an end mill and a rotary soil scavenger.

Known working body, including an end mill and coaxially located rotary thrower with a stationary casing and guided the chute 1.

The disadvantage of this design is the loss of energy due to friction of the soil on the fixed casing.

A working tool is also known, which includes a soil-forming face blade mill, a rotary soil thrower, a gearbox and a guide chute mounted between the cutter and the thrower 2.

The disadvantage of this device is the high energy consumption of the workflow.

The purpose of the invention is to reduce the energy intensity of the workflow.

The goal is achieved by the fact that the thrower is made in the form of a rotor with a diskevakuator installed in a vertical longitudinal plane at an angle to the plane of rotation of the cutter, while the angle of inclination of the rotor to the plane of rotation of the cutter is equal to the angle of inclination of the disc scavenger.

The drawing shows the working body, longitudinal section.

The working body includes an axial milling cutter I with blades 2 installed along the axis of motion of the earthmoving machine, which is driven into rotation through a two-stage planetary gearbox from a powertrain power take-off gearbox (not shown). The gearbox has a primary solar

10 gear 3, made on shaft 4, satellites 5 and 6, mounted with bearings 7 and 8 on axles 9 and 10. The sun gear 11 of the second stage is mounted on shaft 4 with bearing 12.

15 The housing 13 of the gearbox is provided with a protective cover 14. The rotor 15 of the thrower is connected to the shaft 4 mounted in bearings 16-19. A conical gear wheel 20 is fixed on the shaft 4, transmitting torque to the bevel gear 21 mounted

 on the hub 22 of the hub 23 of the rotor 15. The conical transmission is closed by the casing 24. The hub 23 of the rotor 15 is installed by bearings 25 on a fixed sleeve 26 connected to the gearbox housing 13 by means of a pipe 27, on which the fixed bracket 28 of the disk evacuator 29. is mounted. angle y to the plane of rotation of the milling cutter 1, equal to the angle of inclination of the tow truck 29, to the plane of rotation of the rotor 15. The rational limits of the angle j for working on the most common types of soil are 20-25 °. The housing 13 of the planetary gearbox and the bearing 19, supporting the tail end of the shaft 4, is installed in the carrier frame 30, which covers the entire structure and carries out the attachment of the tool to the tractor. A fixed bracket 31 is fixed to the frame 30, which supports the guide chute 32. Soil excavation by this type of earth-moving machine is carried out as follows.

During the forward movement of the machine in arrow A, the face mill 1 rotates, destroying the soil that enters the guide chute 32 into the internal cavity of the rotating blade-free rotor 15 thrower and accelerates due to the joint action of friction and centrifugal forces. The unloading of the soil from the rotor 15 of the thrower is carried out by the disc-evacuator 29 by changing the direction of the flow of the soil. The ejection of the soil occurs along arrow B in the plane of rotation of the disk evacuator 29 through the free space between the rotor of the thrower 15 and the cutter 1. Further flight of the flow of soil occurs along a ballistic trajectory to the place of installation into the embankment or into the vehicle.

The advantage of this invention is the possibility of joint workings of low-energy structures: face blade cutter and blade-free throwers with a tow truck, which reduces the power consumption of the workflow of the proposed tool by an average of 30-35% compared with the known structures. In addition, the additional effect is ensured by the fact that the bladeless rotor of the thrower installed at the vertical angle has a significantly higher filling ratio with soil coming from the guide tray in the lower part, and facilitated ejection of the soil from the rotor by a tow truck in the upper

part of the rotor, which allows for the same expenditure of energy to significantly improve the performance of the thrower.

Claims (2)

1. The working body of the earthmoving machine, which includes a soil-producing face-blade blade, a rotary soil thrower, a gearbox and a guide chute, mounted between the milling cutter and the thrower, characterized in that, in order to reduce the energy intensity of the working process, the thrower is made in the form of a rotor with a tow truck mounted in a vertical longitudinal plane at an angle to the plane of rotation of the cutter. 2. Working body according to Claim 1, characterized in that the angle of inclination of the rotor to the plane of rotation of the milling cutter is equal to the angle of inclination of the disc evacuator to the plane of rotation of the rotor thrower. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 170866, cl. E 02 F 3/18, 07.04.64. 2. USSR author's certificate No. 175895, cl. E 02 F 3/18, 09.07.64 (prototype).