SU1153053A1 - Feed device for boring machine - Google Patents

Abstract

FEEDING DEVICE FOR THE DRILLING MACHINE, including a cylinder, with a rod and a piston, and a chain of the support element with pawls placed on its sides, one of which is mounted in the cage for accommodating tsesh1, characterized in that, mounted on the piston, the dog, mounted in: the holder, made in the form of a fork, and another dog, made in the form of a rod, mounted on the cylinder. . SL OO OO1 00

Description

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Wff -fjVJtV /// The invention relates to mining industry, in particular, to feeding devices of boring machines. A device for drilling holes is known, comprising a perforator and a feeder mounted thereon, consisting of a cylinder with a piston, connected to an anchor fixed in the rock mass of the Cone, and the remains of this device are heavy and bulky. The closest in technical essence and the achieved result to the invention is a feeding device for a boring machine, comprising a cylinder with a rod and a piston and a chain of a support element with pawls placed on its sides, one of which is mounted in a cage to accommodate the chain L21. . The disadvantages of the known device are also large weight and size. The purpose of the invention is to reduce the size and weight. This goal is achieved by the fact that in a delivery device for a boring machine that includes a cylinder with a rod and a piston and a chain of the support element with pawls placed on its sides, one of which is mounted in the cage to accommodate the chain, the cage is fixed on the piston (5-4Kaj mounted in a cage, made in the form of a fork, and another dog, executed in the form of a rod mounted on a cylinder, Fig. 1 shows a device, a general view, Fig. 2 shows a feeder at the beginning of the working stroke, a section, and Fig. 3 section A-A in Fig. 2, in Fig. 4 section B-B in Fig. 2J on Fig. 5 feeder at the end of the working stroke, longitudinal section. The device consists of a perforator 1, a feeder 2, a chain 3, its end adjoins an anchor 4. The feeder 2 contains a cylinder 5 with crankshaft 6 and 7 piston & 8 with a spring-loaded valve 9 and a spring-loaded stopper 10. The tail part of the piston 8 is fixed to the hammer of the perforator 1. The valve 11 is designed to start up the compressed air and adjust the feed force. Both of the 12, fastened with the perforator 13 with the bar 3, are coupled with the spring loaded dog 14 mounted on the lid 6 on which eschen abutment 15. The piston 8 vtolneny channels 16, 17 and 18 for supplying compressed air for idling, and stroke and exhaust the exhaust air to the atmosphere. The yoke 12 with the door 19 comprises a cross-shaped longitudinal hole, in which the chain 3 is placed, adjacent to the pawl 14, made in the form of a fork and covering the chain link on the outside. In the door 19, a spring-loaded pawl 20 is placed, coupled through the holder 12 with the piston 8 and entering the shaft part into the chain link. The door 19 is associated with the holder 12 loops 21 and the lock 22. The device operates as follows. The perforator 1 is put into operation (Fig. 1) and at the same time air is blown by the valve 11 into the feeder. During the working stroke, the doggie 20 leans up with the chain 3, and the cylinder 5 at the same time, connected through the doggie 14 with the chain 3 and the anchor 4, is stationary. At the end of the working stroke, the stopper 10 -in the piston 8 with the tapered surface 15 moves to the right, releasing the valve 9, which changes its position under the action of a spring. At the same time, the compressed air through the channel 17 and the valve bore is directed into the chamber under the piston, which, acting on the scraper 6, moves the cylinder 5 downwardly relative to the fixed piston 8 and perforator I with the holder 12 in this position. The dog 14 swings up 3, it is not an obstacle to the movement of the cylinder, but the pawl 20 keeps the chain 3 in the tensioned position. At the end of idling cylinder 5 krshka. 7, having come into contact with the valve 9 pushed out of the piston 8, pushes it into the piston, the valve is stopped by the stopper 10 and the cycle automatically repeats. The proposed device in comparison with the prototype has a smaller weight and dimensions.

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Claims (1)

FEEDING DEVICE FOR A DRILLING MACHINE, including a cylinder with a rod and a piston. And a chain of a supporting element with dogs placed on its sides, one of which is installed in a holder to accommodate the chain, characterized in that, in order to reduce the dimensions and weight of the device, the holder mounted on the piston, the dog installed in .: the cage is made in the form of a fork, and the other dog, made in the form of a rod, is mounted on the cylinder.