SU1479572A1 - Working member of bucket-wheel excavator with centrifugal discharge - Google Patents

Abstract

The invention relates to earth-moving machines with a rotary tool for digging trenches and pits in soils. The goal is to increase productivity by improving unloading conditions at small corners of the unloading zone and reducing energy intensity. The working body includes a rotor with buckets mounted on its periphery. Each bucket has a base 4 with a cutting peak 5 U-shaped and a spatial frame (PC) 7. By means of horizontal hinges 11, PC 7s are attached to bases 4 with the possibility of swinging in the plane of rotation of the rotor. PC 7 is made in the form of an independent tank with stops 9 in the front and stops 10 in the rear parts. When the rotor rotates, the incisors 6 mounted on the visors 5 develop the ground. The latter is located in each bucket between the bottom surface 13 and the chain bottoms 8 of the PC 7. When filling the bucket with soil, the PC 7 is deflected in the direction opposite to the direction of rotation, and the stops 10 are pressed against the stops 14 of the bases 4. The soil is held by the face and the arc shield 15, which when unloading, it presses the bottom 8 and helps unloading. In doing so, the PC 7 moves forward and the stops 9 hits the stops 16. The chain bottom 8 is shaken, as a result of which an intensification of the unloading process is achieved. 3 il.

Description

The invention relates to earth-moving machines with a rotary tool for digging trenches and trenches in non-frozen and frozen soils.

The aim of the invention is to increase productivity by improving unloading conditions at small angles of the unloading zone and reducing energy consumption.

Figure 1 and 2 shows the working bodies, tearing off the quarry and the trench or the pit; on fig.Z - working body, side view,

The working body consists of a rotor wheel 1, to the lugs 2 and 3 of which buckets are attached around the periphery of the rotor, having bases 4 with a U-shaped cutting hood 5, cutters 6 and a spatial frame 7 with a chain bottom 8. Each spatial frame 7 is made in the form of an independent tank with stops 9 in the front and stops 10 in the rear parts Through horizontal hinges

11 frames 7 are attached to the base 4 with the possibility of swinging in the plane of rotation of the rotor.

The spatial design of the frame 7 significantly reduces the area of direct contact of the soil with the bucket metal and eliminates the possibility of chain collapse and the image of the rear pockets.

The device works as follows.

When rotating the rotary wheel 1 in the direction of the arrow, the cutters 6 mounted on the cutting visors 5 develop the ground. Designed soil

12 is located in each bucket between the surface of the bottom 13 and the chain bottoms of 8 spatial frames 7. Under the action of the ground pressure when filling the buckets, the frames 7 deviate in the opposite direction to

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the rotation board, and the rear stops 10 are pressed against the stops 14 of the bases 4, the developed soil 12 is prevented from falling prematurely from the buckets with the bottom face 13, and then the arc flap 15 adjacent to the face. At the end of the arc flap 15 or at the beginning of the unloading zone under the action of centrifugal force, the chain bottom 8 presses on the ground and helps to unload it. At the same time, the spatial frame 7 also under the action of centrifugal force sharply moves forward and stops 9 thrusts into the stops 16 on the rear side of the vertical racks of the cutting hood 5, as a result of which the chain bottom is sharply shaken, thus intensifying the process of unloading buckets. In this case, the angle of the soil unloading zone decreases sharply.

Claims (1)

Invention Formula The working body of a rotary excavator with centrifugal unloading, comprising a rotor with peripherals mounted buckets, each of which has a base rigidly connected to the rotor with a cutting visor and connected to the visor bottom in the form of a spatial frame with a chain bottom, characterized in that with the aim of increasing performance by improving the unloading conditions at small angles of the unloading zone and reducing energy intensity, each spatial frame is connected to the base by means of a horizontal hinge and It can be rotated in the plane of the rotor, while the spatial frame and the base have stops to limit the swing angle of the spatial frame. / 77 U // 777 77 /// 777 /// /// / M /// 777 eight Eoma angle argzruznm figure 1 Angle razoruznts