SU1707196A1 - Drive of continuous miner working tool - Google Patents

Abstract

The invention relates to mechanical engineering, in particular to mining machines. The purpose of the invention is to increase the efficiency of destruction of rocks. The actuator actuator mining combine contains an engine connected to the drive shaft of the gearbox. The output shaft of the latter is connected to the actuator of the combine. The gearbox is made planetary precessionary with a fixed toothed and driven toothed bevel gears, a yoke and a two-coronal satellite. The yoke has internal teeth, and the two-satellite satellite consists of two parts. Each part of the satellite is mounted on a thrust bearing with the possibility of engagement of one of them with a stationary gear wheel, and the other with a driven cone wheel. Between themselves, the parts of the satellite are connected by a stop mechanism in the form of an axially spring-loaded disk-anvil with end teeth. The latter are mounted with the possibility of engagement with the inner teeth of the cage. The energy of the elastic element is transmitted to the jaws of the firing pin and through the satellite, the gear wheel and the driven shaft is transmitted to the working tool of the executive body. 6 Il. fe

Description

The invention relates to mechanical engineering, in particular to mining machines.

The aim of the invention is to increase the efficiency of destruction of rocks.

FIG. 1 shows the actuator actuator mining combine; in fig. 2 and 3 - section A-A in FIG. 1, the position of the sleeve 14; in fig. 4 and 5, view B in FIG. 1, the position of the incus disk; FIG. 6 shows the position of the incus disk according to FIG. one.

The actuator of the mining combine actuator includes an electric motor 1, the shaft of which is associated with crank 2 of the precessional gearbox 3. On crank 2 there is a two-wedged satellite 4, made in the form of two parts 5 and 6, mounted on the thrust bearing 7. Parts 5 and 6 are connected between each other by a percussion mechanism 8, made in the form of an anvil disc 10 spring-loaded with elastic elements 9 in the axial direction, provided with teeth 11 and cams 12 interacting respectively with internal teeth 13 of bboma 14, and striker 15 cams 16 beats molecular mechanism 8 associated with the portion 5 of the satellite 4 by means of splines 17. The collar 14 is bonded to the hammer 16 posredCh

WITH

 ABOUT

the splines 1B with a circumferential gap and the elastic element 19. The disk-anvil 10 is connected to the satellite part by means of the movable splines 20 with the possibility of axial movement. Part 5 and b engage, respectively, with the stationary toothed conical wheel 21 and the driven conical toothed wheel 22, rigidly associated with the driven break-in 23, which in turn is connected with the executive body of the mining combine 24. The circumferential gap between the splines 18 of the holder 14 of the striker 16 is sufficient to ensure the output of the teeth 1. of the anvil disc from the engagement with the teeth 13 of the casing 14. The profile of the cams 12 of the disc-anvil 10 and the cams 15 of the striker 16 is inclined (triangular) with an angle of inclination sufficient to bring the teeth 11 out of engagement with the teeth 13 without breaking the kinematic connection of the cams 12 with the cams 15.

Drive actuator mining combine works as follows.

The rotational movement of the electric motor 1 by means of the inclined crank 2 is converted into a precessional motion of the satellite 4, which, being hooked by the roller rims of parts 5 and 6, respectively, to the gear wheels 21 and 22, causes the latter to rotate with reduction. The reduced rotational movement of the driven wheel 22 is transmitted to the driven shaft 23 and further to the executive body of the mining combine. If hard rock gets in the way of the executive body (phase, auger, etc.), the impact mechanism 8 is activated. This happens as follows: reactive torque from the working tool of the executive body when meeting the hard rock through the driven shaft 23 and the driven bevel wheel 22 transmits to the part 6 of the satellite 4, while the disk-anvil 10, connected with the part 6 of the satellite 4, deforms the spring 9, begins to move in the axial direction and in the circumferential direction when the cams 12 and the cams 15 interact. again, thanks to teeth 11 and 13 is transferred to holder 14,

which, by deforming the elastic element 19, is rotated by the same amount before the teeth 11 exit from engagement with the teeth 13 of the yoke 14. When the tooth 11 comes out of the engagement with the teeth 13, the deformable elastic element 19 quickly returns the yoke 14 to its original position. In this case, the energy of the elastic element 19 is transmitted through the splines 17 to the cams 15 of the hammer 16 in the form of impact, and from the cams 15 through the cams 12, the splines 20, part 6 of the satellite 4, the gear wheel 21 and the driven shaft 23 are then transmitted to the working tool of the mining body 24

This process is repeated until the hard rock is destroyed. Then the gearbox returns to normal operation.

Claims (1)

Invention Formula The actuator of the mining combine actuator contains an engine connected to the drive shaft of the gearbox, the output shaft of which is associated with the combine actuator characterized in that, in order to increase the efficiency of rock destruction, the gearbox is made planetary precessionary with a stationary gear wheel, rigidly fixed on the output shaft with a driven toothed bevel wheel, with a clip made with internal teeth, and with a two-cage satellite made of two parts, mounted on a thrust bearing with the possibility of engagement of one of them with a stationary gear wheel, the other with a driven conical toothed wheel and interconnected by means of a percussion mechanism, made in the form of an anvil disc spring-loaded with an axial teeth and mounted with the possibility of engagement with the inner teeth of the cage and out of this engagement by the cams, a hammer with additional cams connected by means of the splines to the cage and with one of the satellite parts, the other part which is connected by means of movable slots with anvil disk. About " I% 777/57572 19 8PAEP 23 24 1 Fy P YU VidB FIG. five P YU FIG. 6