SU861586A1 - Cutter-loader actuating member - Google Patents

Description

. -. 1 The invention relates to the mining industry and can be used in mining machines with an arrow-shaped actuator. The executive body of the mining combine is known, including a crown consisting of two half-cutters, rotating cres in opposite directions and coaxially relative to the one-piece and hollow drive fflitx shafts, and the body of the boom IJ. The disadvantage of such a device is the difficulty of transmitting the torques of each of the half-cutters, which reduces the reliability of the actuator. Also known is the executive body of the coal combine, consisting of. rotor and auger located coaxially with respect to the drive shaft, separating housing, connected to the gearbox housing and the planetary gear mechanism installed between the rotor and the auger and having a crown. rigidly mounted on the separation housing, seteles {) you are located on the rotor and rotating with it, and the sun wheel fastened to the izj screw. rotor, which reduces the reliability of the executive body and requires an increase in drive power. In addition, in this design, the rotor and screw rotations are performed in one direction, which adversely affects the dynamics of the organ, and therefore also reduces the reliability and durability of its operation. The closest limescale is the executive body of the mining combine, including the boom body, the split crown, the front part

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which is rigidly mounted on the drive shaft, and on the back of the crown of the planetary gear mechanism having satellites installed in the supports, and the solar wheel mounted on the drive shaft Gz.

However, in this design, the satellite supports are: on the outer side of the crown — the boom body, and on the inner side — a fixed support rigidly connected to the boom case, which perceives significant torsional and bending moments. The disadvantage of this solution is the unreliability of the structure and the impossibility of replacing crowns of other structures.

The aim of the invention is to increase the reliability and durability of the executive body and the combine, as a whole.

The goal is achieved by the fact that the planetary gear mechanism is equipped with a cup, installed coaxially with the drive shaft and fixed to the boom body, while the cup is made with windows for the satellites, and the satellite supports are rigidly fixed to the cup.

Figure 1 shows a General view of the Executive body of the mining combine; figure 2 - section aa in figure 1; fig.Z - executive body in isometric b. without front; Figure 4 is a kinematic scheme.

The executive body of the mountain combine includes a crown made of two parts: the front 1 and rear 2, located coaxially relative to the drive shaft 3, the body of the boom 4 and the planetary gear mechanism installed between the rear part 2 of the crown and with a water shaft 3.

The mechanism of the planetary gear has a crown 5, rigidly mounted on the back of the 2 crowns; the satellites 6 rotating on the axis x 7 and the sun wheel 8 rigidly fixed to the water shaft 3. The planetary gear mechanism is equipped with a fixed cup 9 rigidly connected to the body of the boom 4 and resting on several angular contact bearings 10. In the body of the cup There are windows 11 for coupling the satellites 6 to the sun wheel 8.

Axles 7 supports two clips 12 and 13, rigidly connected between

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by itself and with a fixed glass 9. The rear part 2 of the crown is mounted on two angular contact bearings 14. The front part 1 of the crown is rigidly

mounted on the drive shaft 3 using a conical sleeve 15. Both parts of the crown are equipped with a working tool 16.

The executive body works in the same way.

The torque from the drive shaft 3 is transmitted to both parts of the crown: the front 1 directly from the drive shaft 3 and the rear 2 from the drive shaft 3 via a planetary gear.

The front part of the crown, which is rigidly connected to the shaft 3 by means of a conical sleeve 15, rotates in the same

Q direction, as the shaft 3, produces the destruction of the rippers 16.

The torque of the rear part, 2 crowns is transmitted by means of the sun wheel 8 and the satellites 6, which,

r being in stationary collars 12 and 13, rotate in the opposite direction relative to the rotation of the drive shaft 3 and the crown 5 and the back part 2 of the crown fixed with it are rotated. In this case, the rear part 2 of the crown rotates in the opposite direction relative to the rotation of the drive shaft 3 and also causes the destruction of the slab.

Such a constructive solution of the executive body ensures rotation of the anterior and posterior parts of the crown in mutually opposite directions and, during the operation of the organ, results in balancing the moments from cutting efforts, which reduces the dynamics and, ultimately, increases its reliability and durability.

Claims (1)

Invention Formula  The executive body of the mountain commander, including the body of the boom, detachable crown, the front part of which is rigidly fixed to the drive shaft, and rigidly fixed to the rear part 0 a crown is fixed to a planetary gear mechanism having satellites mounted in supports and a solar wheel mounted on a drive shaft characterized in that 5 that, in order to increase the reliability and durability of the work, the mechanism of the planetary gear is equipped with a glass installed coaxially with the drive 5 8615866 shaft and mounted on the body of the stre; 1. USSR author's certificate ly, while the glass is made with a window-№ 207184, class, E 21 C 27/24, 1962. si for satellites, and satellite support2. USSR Authors Certificate rigidly fixed on the glass. № 597837, cl. E 21 C 25/10, 1976. Information sources, . 3. USSR author's certificate taken into account in the examination number 402652, cl. E 21 C 27/24, 1971. Fig 2 S Fig.Z. FIG L