SU1372043A1 - Feed mechanism of stoping cutter-loader - Google Patents

Abstract

The invention relates to equipment for mechanizing coal mining. The goal is reliability and long increase. sheep feed mechanism. The latter is made in the form of an asterisk, whose teeth 4 interact with cylindrical fingers 5 of the rail 8, mounted on the conveyor. The cylindrical fingers 5 have trunnions 6 located in the slots 7 of the rail 8. Under the action of the forces arising from the operation of the combine, associated with the destruction of the coal massif and loading of the destroyed coal, the cylindrical fingers 5 interacting with the teeth 4 of the oscillating sprocket are turned in the slots 7 of the rail 8 relative to the axles of the axles. 6. The oscillations of the body of the combine do not affect the engagement, which increases the reliability and durability of the feeder. 6 Il. 6-6 § Л

Description

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113

The invention relates to the mechanization of underground coal excavation, and specifically to the mechanisms for feeding the excavation combines.

The purpose of the invention is to increase the reliability and durability of the feed mechanism.

FIG. 1 shows the feed mechanism of the shearer; FIG. 2 is a section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 1, with rigidly mounted (a) and with movably mounted (b) fingers on the rail; in fig. 4 is a view of B in FIG. one; Fig.5 section GGD of Figs. four; in fig. 6 is a section d-d in FIG. four.

The feeder of the shearer consists of the body of the harvester 1, on the drive shaft 2 of which is fixed an asterisk 3, the teeth 4 of which interact with cylindrical fingers 5. The cylindrical fingers 5 are provided with trunnions 6, the axis of symmetry of which is perpendicular to the axis of the finger 5. The trunnions 6 of fingers 5 are located in 7 grooves of the rail 8 with a removable cover 9. The rail 8 with fingers 5 is rigidly fixed on the face conveyor 10.

the grooves 7 of the rail 8 and the removable cover 9 relative to the axis of the pins.

Thus, vibrations of the body of the combine 1 in the frontal plane of the formation do not affect the engagement of the sprocket 3 with the fingers 5 of the lath 8, as a result of which their contact area remains constant and unchanged (Fig. 36). If the fingers 5 are firmly fixed on the rail 8, the contact area of the teeth 4 of the sprocket 3 with the fingers 5 would periodically decrease, which is caused by the inclined oscillations of the asterisk 3 in the frontal plane of the formation and the tooth profile 4 of the asterisk 3 (Fig. 3).

The use of the proposed feed mechanism significantly increases its reliability and durability compared to the known one by reducing the unit loads on the teeth of the sprockets and cylindrical fingers of the slats as a result of the constant area of contact when the combine body oscillates with an asterisk in the frontal plane of the formation. The use of a rolling joint of cylindrical fingers with a rail fastened to

The feeder operates as a downhole conveyor, allowing

in a way.

The asterisk 3, rotated by the drive shaft 2, with its teeth 4 interacts with the cylindrical fingers 5 of the rail 7 and moves the body of the combine 1 relative to the downhole conveyor 10. At the same time, as a result of the operation of the combine, the determined actuators from the cutting tool of the coal executive array and loading the destroyed part of it. Under the action of these periodic varying forces, the body of the combine 1 performs oscillating oblique movements in the frontal plane of the formation (the plane perpendicular to the direction of movement of the combine) together with the drive shaft 2 and the asterisk 3. With the interaction of the teeth 4, the asterisk 3 in the frontal plane interacts with the asterisk 3 cylindrical fingers 5 last rotate on the pins 6 in

five

0

five

0

set with an asterisk on the rack fingers when the combine is working, which is especially important at the joints of the rails. In addition, the implementation of a detachable rail makes it possible to carry out a quick replacement of a worn cylindrical pin without replacing the entire rail, which increases its maintainability.

Claims (1)

Invention Formula A shearer feeder feed mechanism comprising an asterisk mounted on the drive shaft of the combine housing, a rail with cylindrical fingers mounted on a conveyor, characterized in that, in order to increase reliability and durability, cylindrical fingers fitted with trunnions are installed in the rail grooves, the axis of which is perpendicular The axis of the cylindrical fingers, and the fingers are installed with the possibility of rotation relative to the axes of their axles. / Ui r-r. A T