RU1787104C - Impact action pneumatic engine - Google Patents

Abstract

Usage: in mechanical engineering. The inventive pneumatic impact machine includes a housing 1, a partition 2, dividing it into two cavities 3 and 5, the piston-hammer 4 and the vibration damper piston 6 and an air distribution mechanism 9 connecting the cavities 3 and 5 of the machine with the network, in the partition 2, a chamber 10 is made, periodically communicating with the air distribution mechanism 9, in the piston-hammer 4 and the piston-vibration damper 6 there are central blind and associated radial holes. The device is equipped with two air supply rods 7 and 8, placed at one end in the chamber 2 of the partition 1, and the other in the central holes of the piston hammer 4 and the piston

Description

6 vibration damper. The vibration damper piston 6 is made similarly to the piston-hammer 4. The air distribution mechanism 9 has a channel 11, and the baffle 2 has a channel 12. The cavity 3 has a pre-piston 14 and a piston 16 area, and a cavity 5 has a pre-piston 15 and a piston 17 area. The pre-root regions 14 and 15 are communicated by channels 11 and 12 with alternately compressed air through an air distribution mechanism 9. 1 ill.

The invention relates to pneumatic impact machines which are used in construction, mining and other industries.

A known pneumatic impact machine. The disadvantage of this machine is the large vibration.

A pneumatic hammer is also known in which the cylinder is provided with a baffle having an aperture and mounted between the hammer piston and the stepped piston to increase the vibration reduction efficiency. However, this machine transmits vibration to the housing due to the absence of equal conditions for the distribution of pressure on the piston-hammer. vibration damper piston.

The aim of the invention is to increase the efficiency of vibration damping, increase productivity,

In a pneumatic impact machine comprising a housing, a partition dividing it into two cavities, a shock piston and a vibration damper placed therein, and an air distribution mechanism connecting the machine cavities to the network. A chamber is made in the baffle, periodically communicating with the air distribution mechanism, central blind and associated radial holes are made in the piston-hammer and vibration-damping piston, the device is equipped with two air supply rods located at one end each in the baffle chamber and others in the central holes of the piston-hammer and the piston-vibration damper. The vibration damper piston is made similarly to the piston drummer.

The drawing shows the proposed pneumatic impact machine, General view.

The pneumatic impact machine includes a housing 1, a partition 2, dividing it into two cavities 3 and 5, a piston-hammer 4 and a vibration damper 6 placed therein, and an air distribution mechanism 9 connecting the cavities of the machine 3 and 5 with network, in the partition

2, a chamber 10 is made, periodically communicating with the air distribution mechanism 9, central deaf and associated radial holes are made in the piston-hammer 4 and the vibration damper 6, the device is equipped with two air supply rods 7 and 8 located at one end in the chamber 2 baffles 10, and others - in the central holes of the vibration damper piston 6 and the impact piston 4. The vibration damper piston 6 is made similar to the impact piston 4. The air distribution mechanism 9 has a channel 11, and the partition 2 has a channel 12. Cavity 3 has a pre-piston 14 and a piston 16 area, and a cavity 5 has a pre-piston 15 and a piston 17 area. The pre-piston regions 14 and 15 are connected by channels .11 and 12 by alternately compressed air through the air distribution mechanism 9:

Pneumatic impact machine operates as follows.

From the network, compressed air enters the air distribution mechanism 9, which distributes the air through the channels 11 and 12 to the pre-piston regions 14, 15 of the cavities 3 and 5. The compressed air drives the oppositely directed piston-hammer 4 and the vibration-damper piston 6, while the reaction forces from the pistons 4 and 6 transmitted to the housing 1 are mutually balanced and exclude vibration to the housing. Then, the air distribution mechanism 9 is activated and distributes the compressed air through the channel 13, the chamber 10, the air supply rods 7 and 8 in the backfilled areas 16, 17 of the cavities 3 and 5, the compressed air reverses the opposite directional movement of the piston-hammer 4 and a vibration damper piston 6, while the reaction forces from the pistons 4 and 6 transmitted to the housing 1 are also mutually balanced and exclude vibration to the housing 1. The cycle is then repeated.

The proposed pneumatic machine significantly increases the efficiency of the vibration damper and increases productivity.

Claims (2)

SUMMARY OF THE INVENTION 1. A pneumatic impact machine comprising a housing, a baffle dividing it into two cavities, a shock piston and a vibration damper placed therein, and an air distribution mechanism connecting the cavities of the machine to the network, characterized in that that, in order to increase the efficiency of the vibration damper, a chamber is made in the partition that periodically communicates with the air distribution mechanism in the piston For the non-hammer and the vibration damper piston, central blind and associated radial holes are provided, the device is provided with two air exhaust rods, each of which is located at one end of the partition chamber, and the other in the central holes of the shock piston and vibration damper piston. 2. Machine according to claim 1, characterized in that, in order to increase productivity, the vibration damper piston is made similar to the impact piston.