SU1562126A1 - Machine of impact action - Google Patents

Abstract

This invention relates to impact machines. The purpose of the invention is to increase efficiency by reducing the consumption of energy and improving the dynamic characteristics of the machine. When the energy carrier enters chamber 16, it acts on the drummer 8 and the end of the lower piston stage 5, as a result, they move. The holes 22 and 23 overlap the larger piston level 6, and the annular groove 20 of the lower piston level 5 communicates the front 15 and auxiliary 19 chambers with channels 12 and 14 to the source of energy carrier, and the axial channel 24 of the small piston 8 stage communicates the middle 16 and rear 17 cameras with the atmosphere after which there is an exit from the middle 16 and rear 17 cameras. The drummer performs a return stroke, at the end of which it acts on a smaller piston stage 5, switches it to its original position, opens hole 23, after which exhaust energy from the chambers 15 and 18 is exhausted to the atmosphere, and the axial channel 24 of piston stage 5 by piston 25 tells the middle camera 16 with a source of energy. Drummer 8 makes a working move. 1 il.

Description

the piston stage 5 communicates the front 15 and auxiliary 19 chambers with channels 12 and 14 to the energy source and the axial channel 24 of the small piston stage 5 communicates the middle 16 and rear 17 chambers with atmosphere, after which the exhaust from the middle 16 and rear 17 chambers occurs. The drummer makes a return stroke, at the end of which the impact-jQ

A lower piston stage 5 moves, opening 23 opens to its initial position, after which exhaust energy from chambers 15 and 18 is exhausted to the atmosphere, and the axial channel 24 of piston stage 5 with opening 25 communicates the middle chamber 16 with the source of energy carrier. Drummer 8 makes a working move. 1 il.

The invention relates to percussion machines and can be used in all cases when it is necessary to obtain powerful blows to an instrument with a short stroke of a striker, independent of the length of the latter.

The purpose of the invention is to increase efficiency by reducing the consumption of energy and improving the dynamic characteristics of the machine.

The drawing shows a percussion machine, a longitudinal section.

The percussion machine contains a cylindrical body 1, divided by a jumper 2 with an aperture 3, placed at the ends of the body 1, a working tool 4 and a stepped piston having a lower stage 5, a larger stage 6 and an additional stage 7.

A smaller piston stage 5 is installed in the opening 3 of the jumper 2. The drummer 8 is located in the central part of the housing 1 and has a longitudinal channel 9 communicated with the annular pro

point 10 drummer 8. In the case 1 about 4

The channels 11–14, front 15, middle 16, rear 17, an additional 18 and an auxiliary camera 19 are developed and interconnected. A smaller piston stage 5 is made with annular grooves 20 and 21. In the additional chamber 18, exhaust ports 22 and 23 are made, which are blocked by a larger piston stage 6 as it moves. At the same time, the smaller piston stage 5 has an axial channel 24 with a hole 25.

The machine works as follows.

Work tool 4 is located in the upper position. Compressed air enters through the annular groove 21, the hole 25 and the axial channel 24 of the small piston level 5 into the middle chamber 16 and acts on the hammer 8 and the end of the smaller piston level 5. Drummer 8

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with

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five

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under the action of the energy of the camera 16 is moved, making a working move. At the end of the stroke of the striker 8, the annular groove 10 of the striker 8 communicates the rear chamber 17 through the longitudinal channel 9 of the striker 8 and the channel 13 with the chamber 16, i.e. with a source of energy carrier, and an additional chamber 18 is in communication with the exhaust ports 22 and 23 with the atmosphere.

When the piston moves, the openings 22 and 23 overlap with the larger piston level 6, the annular groove 20 of the smaller piston level 5 communicates the front 15 and auxiliary 19 chambers with channels 12 and 14 to the source of energy carrier, and the axial channel 24 of the small piston 5 step communicates with the atmosphere, after which the exhaust energy from the average 16 and rear 17 chambers exhaust. Under the action of the energy carrier in the anterior chamber 15, the striker 8 reverses and as the drummer 8 progresses beyond the entrance of the channel 13 to the chamber 15 again connects the rear camera 17 to the source of energy carrier. At the end of the reverse stroke, the impactor 8, acting on the lower piston stage 5, switches it to the initial position. After the piston begins to move, an additional chamber 1 18 is in communication with channel 11. With the front chamber 15 and with the source of energy carrier, which additionally entails switching the piston to its original position. The impact on the piston of the energy of the driving hammer 8 and the energy carrier in the chamber 18 at a greater piston level 6 allows the piston to be switched to its initial position. At the end of the stroke, the piston stage 6 opens the hole 23, after which the exhaust from 51

energy from cameras 15 and 18 to the atmosphere.

The axial channel 24 of the piston stage 5 with the hole 25 communicates the middle chamber 16 with the energy carrier source, the energy carrier is introduced into the chamber 16. Under the action of the energy carrier in the middle chamber 16, the hammer 8 begins to make a working stroke.

The cycle is repeated.

When the tool is located at the bottom, the energy carrier flows through the annular groove 20 of the piston through the channel 12 into the front chamber 15 and through the channel 14 into the auxiliary chamber 19. The drummer 8 under the influence of the energy carrier in the chamber 15 moves and makes a working stroke.

Claims (1)

Invention Formula A percussion machine comprising a cylindrical hollow body having one pair of radial coaxial channels, a radial hole and inlet and exhaust holes, a jumper dividing the body into two cavities, one of which is rear, having an axial hole placed in opposite ends of the body. tool with an axial channel and groove connected to the rear cavity and an axial channel located in the zone of a pair of radial channels, and stepped 05 0 5 o 266 a piston, a smaller step of which is made with two annular grooves for periodically communicating w with a source of compressed air and installed in an axial bore, placed in another cavity and dividing it also periodically, communicating with a source of compressed air through annular grooves of a small step of the piston the front and middle chambers are a drummer with an annular groove for periodic interaction with the working tool and a smaller piston stage, and an additional chamber is limited by the end of the larger piston stage and the housing, located in the zone of exhaust holes, to periodically communicate it with the atmosphere, characterized in that, in order to increase efficiency by reducing energy consumption and improving the dynamic characteristics of the machine, in the housing from the end of a larger piston stage facing the rear cavity of the housing, axial groove, in the impactor, a channel extending at one end into its annular groove, with the other into the middle chamber, and at a larger piston stage there is an additional step placed in an additional axial section otochke and forming with the latter an auxiliary chamber for periodic connection to the front chamber.