SU881209A1 - Working member of chain-type trencher - Google Patents

Description

one

The invention relates to earthmoving machines and, in particular, to workers; chain trench excavator bodies.

Known working body chain trench excavator, comprising a frame and a bucket chain with drive 1.

The disadvantage of the working body is that it tears off a trench of the same width and when laying, for example, drains of small diameter, there is an overrun of the filtering material when rounding the drains.

A known working body of a chain excavator comprising a frame, a bucket chain, a lower drive shaft with cutting elements, running through the bucket chain 2.

The disadvantage of the working body is that it can tear off a trench of only two sizes.

The purpose of the invention is the expansion of technological capabilities.

The goal is achieved in that the cutting elements are provided with a mechanism for moving them along the drive shaft.

The movement mechanism is embodied in the form of a lead screw housed inside the drive shaft and the nuts associated with the cutting elements.

FIG. 1 shows the working body of the rear view; in fig. 2 - the same, side view.

The working body consists of section # 1 with a bucket chain, to which two pillars 2 are fixed, in bearings 3 of which a hollow shaft 4 rotates, on which sprockets 5 and two milling cutters b are fixed, which can be moved 10 on shaft keys. The hubs of each milling cutter 6. are connected to the nuts 7 by means of pins 8. Both nuts connect the lead screw 9 with the left and right thread cuts, which

15 is fixed by bearings 10.

When digging a trench, the soil is worked out with a bucket chain and cutters, and the soil developed by the cutters is removed from the trench of the bucket

20 chain.

When fixing the lead screw 9 with a device of any design and rotating the bucket chain, the mills 6 can move along the shaft 4 into different

25 side of the trench axis, changing its width depending on the width of the laid-down drains.

Claims (2)

 Claim 1. The working body of a chain trench excavator, comprising a frame. bucket chain, the lower drive shaft with cutting elements installed between the branches of the bucket chain, characterized in that, in order to expand the technological capabilities, the cutting elements are equipped with a mechanism for moving along the drive shaft. 2. Working body pop. 1, characterized in that the movement mechanism is designed as a running gear. a screw disposed within the drive shaft and nuts associated with the cutting members. Sources of information taken into account in the examination 1.Gazbuzov Z.E. and others. Excavators continuous action. M., Higher School, 1975, p.72, fig. 40 2. USSR author's certificate № 630356, CL.E 02 F 5 / 06,1973 (prototype)