SU1187979A1 - Percussion-action manual tool - Google Patents

Abstract

SHOULDER MANUAL TOOL containing a mandrel, a firing pin with a spherical recess in which the ball is placed, and a punch interacting with the striker with teeth arranged in a circle, characterized in that, in order to increase productivity and durability, the tooth is bent in opposite directions from the axis punch with a gap at the joints. cl

Description

The invention relates to a manual percussion instrument, namely, devices for punching holes in concrete, in mining, as well as in processing stones.

The purpose of the invention is to increase productivity and durability ..

FIG. 1 shows a hand-held percussion instrument, longitudinal section; Fig, 2 is the same, top view.

The percussion hand tool contains a mandrel consisting of a body 1, a support disk 2 with an elastic gasket 3, a protective disk 4, a guide sleeve 5, an elastic element 6, a metal gasket 7, and a striker 8 with a spherical one. a recess 9 in which the ball 10 is placed, and a punch 11 interacting with the striker 8 with the teeth 12. The tooth 12 is alternately bent in opposite directions from the axis of the punch 11 with a gap at the joints. The ball in the spherical recess 9 is held by a cap 13 with an annular spring 14. The piercer 11 is attached to the striker 8 with a pin 15 with a spring 16.

Hand tool percussion action works as follows.

The tool is mounted with a supporting disk 2 on the surface I7 of the structure, holding it by the body 1. The ball 10 is hit with a hammer (not shown. The hammer energy is transmitted to and the piercer 11, the tooth 12 of which interacts with the material of the future hole, destroying it partially around the ring.

The elastic element 6 performs a number of functions: it reduces the recoil energy of the striker 8, increasing the impact of the piercer 11 on the material being destroyed, ensures the interaction of the mandrel with the striker 8, reduces the vibration that occurs when the hole is punched.

The recoil energy of the striker 8 is perceived by the elastic element 6. After striking the instrument, the tool is turned around its own axis using the housing 1.

The destructible material flows through immersions in the piercer 11, the gaps between the teeth 12 into the hollow part of the piercer 11 and the striker 8. These operations are repeated until the required depth of punching is reached. The elastic gasket 3 prevents the supporting disk 2 from mechanical damage.

It is possible to transfer forces to the piercer} 1 by means of mechanical, electromechanical and pneumatic drives.

Claims (1)

MANUAL TOOL OF SHOCK ACTION, comprising a mandrel, a spike with a spherical recess in which the ball is placed, and a punch interacting with the spike with teeth arranged in a circle, characterized in that, in order to increase productivity and durability, the teeth are bent in opposite directions from the axis of the punch with a gap at the joints. Fig f SU, 11879 1) 87979 2, holding it by case 1. Ball 10 is hit with a hammer (not shown). The energy of the hammer is transmitted to the hammer 8 and punch 11, the teeth 12 of which interact with the material of the future hole, destroying it partially along the ring. The elastic element 6 performs a number of functions: reduces the recoil energy of the striker 8, increasing the impact of the punch 1I on destructible material, provides interaction of the mandrel with the striker 8, reduces the vibration that occurs when punching the hole. The recoil energy of the striker 8 is perceived by the elastic element 6. After striking, the tool is rotated around its own axis using the housing 1. Destructible material enters through the gaps between the teeth 12 in the punch 11 into the hollow part of the punch 11 and the hammer 8. These operations are repeated until the desired hole punching depth is reached. An elastic gasket 3 protects the support disk 2 from mechanical damage. It is possible to transfer forces to the punch 11 using mechanical, electromechanical and pneumatic