SU985196A1 - Working member of trencher - Google Patents

Description

(54) WORKING ORGAN OF THE TRAWNER The invention relates to the working bodies of earthmoving machines, trenileleks, mainly for digging narrow trenches. The working body of the trench is known, including a cutting chain with a drive sprocket, a frame and a dump mechanism, made in the form of C1 screws. The disadvantage of this working body is the absence of a stripping device, which leads to the filling of the trench with waste soil. Closest to the present invention is the working body of trenches, including a cutting chain with a drive sprocket and guiding the frame on which the C23 swivel plows are mounted. The implementation of the guide frames with smaller dimensions than the width of the trench as well. Also, throwing bollards after moving them from the trench to the idle branch of the chain leads to filling the finished trench to a certain height with loose soil. The constant circulation of shtyb in the trench (in the idle zone and in the working branches of the chain) leads to inefficient power consumption and a decrease in the productivity of the machine. The purpose of the invention is to increase productivity. The goal is achieved by the fact that the working organ of the trencher, including the cutting chain with the drive sprocket and the guide frame, on which the rotating plows are mounted, is provided with guards made in one piece with the rotating plows and installed with the hinged guide frame, and has a spreader , made of hinged plates and mounted by means of brackets on the guide frame above the drive sprocket. FIG. 1 - a working body of a trencher, side view, - in FIG. 2 is a view along arrow A in FIG. one; in fig. 3 - working body, top view; in fig. 4 - the same, with the removal (conditionally) of a bayonet retractor; in fig. 5 pins The working body of the trencher consists of a guide frame 1, on which a cutting (scraper) chain 2 is mounted, driven by a drive sprocket 3. The latter is mounted on the shaft of the driving mechanism 4, which is mounted on the base machine 5. The stripping tool consists of rotary plows made at the same time with flaps 7 in the form of plates, pivotally mounted along frame 1 towards the shank and located with a buried working body in a trench and moving the destroyed soil towards the side of the working chain, not ozvol prosypats the soil in the trench ready for the bachelor branch of the cutting chain. Rotary plows b destroyed and brought to the surface of the soil is moved aside from the trench. The plows b with the flaps 7 are fastened with the help of the hinges 8 on the frame 1. These plows with the shields on the hinges 8 are rotated by means of devices consisting of a nut 9 and screws 10 attached hinge to the plows b on the frame.

The shredder consists of two plates 11 and 12, which are interconnected by a hinge 13. The plates 11 and 12 have piles 14-17 for directional movement of the plug on the plates 11 and 12 to the side of the trench. Shtyb, partially remaining on chain 2, is thrown onto plates 11 and 12 under the action of centrifugal forces when rounding the cutting chain 2 of the drive sprocket 3. On plates 11 and 12, lugs 18 and 19 are made, with which the spider is attached to the brackets 20 and 21 in holes 22. The brackets 20 and 21 are fixedly mounted on the frame 1. The hinges 23 and 24, the plates 11 and 12 are connected to the plows 6.

The assembly worker of the body is carried out as follows.

Before cutting a slit-trench of a certain width by rotating a heel 9, the plows 6 with the flaps 7 are rotated. and fixed so that the shields are installed with a small gap between the walls of the trench, preventing jamming of the working body in the trench. At the same time, the plates 11 and 12 are removed simultaneously. After this, the shtambogger via the lugs 18 and 19 is fixedly bolted to the frame 1 through the holes 22 in the brackets 20 and 21. With the installation of a named chain tool, for example, to make a trench of greater width (trench contour indicated by dashed line 25), additional turning operations are performed plow b with shields 7 (dotted line 26) rotation of the nuts 9 and the corresponding dilution to the side

plates 11 and 12 (dotted line 27) and fastening the latter motionless through new holes 22 in brackets 20 and 21.

The working body works as follows.

During movement of the cutting chain and the buried working body, when feeding the machine, the destroyed soil is partially taken out of the trench, scattering in front of the working body and on both sides. The trenches, parts of the shaft, remain in the trench and are moved by the flaps 7 to the face under the working branch of the chain. With the plows b, the destroyed soil is moved away from the trench, which excludes its shedding into the finished trench. Part of the soil left on the chain, under the action of centrifugal forces, is thrown onto the plates 11 and 12 of the stubs and dropped on both sides of the trench, not falling into the idle branch of the chain,

Due to the decrease in the number of circulating heading in the trench (in the idle and working branches of the chain), for an hour of transporting it to the side of the trench under its own weight, irrational expenditure of energy (power) to pull the cutting chain was included. This improves the performance of the trenchers. The pin-out device performs the functions of a protective casing provided in earth moving machines for guarding the moving chain.

Claims (1)

1. USSR author's certificate number 387094, cl. E 02 F 5/06, 1969. 2, ETC-165 trench excavator. Prospectus of the exhibition Machines for the development of frozen soils, 1978 (prototype) .. i fig fpus.Z 18 J 5 f f ha Fig.- -B UjssrtR sw s f- - - - .- iiTmw / ri v ° M - - ° - - II