CN2290453Y

CN2290453Y - Pneumatic chipping hammer

Info

Publication number: CN2290453Y
Application number: CN 97208075
Authority: CN
Inventors: 罗侣旦
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-03-03
Filing date: 1997-03-03
Publication date: 1998-09-09
Anticipated expiration: 2007-03-03

Abstract

The utility model relates to a pneumatic chisel which is suitable for cleaning coating layers on metal surface or drilling holes, and the utility model is characterized in that the pneumatic chisel is composed of a compressed air driving part and an impact part. After compressed air entering into an air cylinder, a piston can be driven to move, the movement of the piston can impact an impact hammer, so a steel needle can regularly impact stricken objects in a guide cylinder. The utility model has the advantages of simple structure and low manufacturing cost and is suitable for cleaning rust on rough surfaces of machinery devices in construction, shipbuilding, mechanical and other industries, or the utility model can be used for slotting for burying electric lines in decoration, etc.

Description

Pneumatic chipping chisel

The utility model provides a kind of mechanical equipment surface rusty scale of removing, weldment surface welding slag of being applicable to reach to electric wiring buries the pneumatic chipping chisel that applies fluting, and it belongs to the B25D1/00 class.

Before the utility model, be used to remove welding slag on metal surface rusty scale or the weldment etc., general rust removalling equipment such as all use types pikestaff formula rust removal, it can remove the rusty scale that need remove effectively, and weak point is the electric wiring complexity of this equipment, and parts are many, the processing cost height, when rust cleaning, scarfing cinder operation, efficient is lower, is not easy to be extensive use of.

The purpose of this utility model be to provide a kind of gas circuit structure corresponding simple, part is few, be easy to process, cost is low, instrument---the pneumatic chipping chisel of rust cleaning scarfing cinder better effects if.

Solution of the present utility model is after connecting compressed air, move down by lower platen, valve, compressed air enters cylinder by various passages after entering annular chamber, promote the piston high-speed motion, the piston slap block stamp of high-speed motion, block stamp is passed to draw point with power, and stressed draw point is beaten and hit realization rust cleaning scarfing cinder or fluting perforating on the object.Unclamp pressing plate, move on the valve, compressed air can not enter cylinder, and draw point stops action.

Below in conjunction with accompanying drawing the utility model is done more detailed explanation.

Accompanying drawing is a cut-away view of the present utility model.

Accompanying drawing also is a Figure of description of the present utility model.

As shown in the figure, the utility model by compressed air-driven partly and impact partly and form, compressed air-driven comprises partly that air inlet chews 1, pressing plate 2, valve 3, cylinder sleeve 4, cylinder body 5, piston 6, block stamp 7 and cylinder 8; Impact and partly comprise needle guard 8, draw point 10, guide cylinder 11 and spring 9.After compressed air enters wind and chews 1, press lower platen 2, valve 3 is moved down, compressed air enters annular chamber 12, enters cylinder 16 by radial hole on the cylinder body 5 13 and radial hole 14, axial hole 15 on the piston 6 again.The compressed air that enters cylinder 16 promotes piston 6 high-speed motion left, piston 6 bump block stamps 7, block stamp 7 is passed to draw point 10 in the needle guard 8 with power, draw point 10 in guide cylinder 11 also rapidly to left movement.When piston 6 during to left movement, when the radial hole 14 on the piston 6 is crossed shoulder on the cylinder body 5, compressed air is released by radial hole 14 and axial hole 15, therefore

radial hole

14,13 does not communicate the time again, compressed air can not continue again to replenish, cause the pressure in the cylinder 16 to descend rapidly, piston 6 moves right, under the effect of needle guard 8, spring 9 block stamp 7 is moved right, driving draw point 10 also moves right ... and so forth, make draw point 10 under the effect of certain force rapidly left, motion repeatedly to the right, thereby realize the purpose of rust cleaning scarfing cinder or fluting.Hit object for draw point 10 can be impacted in guide cylinder 11 parallel and regularly, guide cylinder 11 ports are " O " type.

As mentioned above, also be most preferred embodiment of the present utility model.For example piston 6 is with the frequency bump block stamp 7 of per second 70 times, draw point 10 can process on as concrete or brick wall one dark be the groove of rectangle at 20-40mm, section.

Claims

1, a kind of pneumatic chipping chisel, it partly is made up of with impacting partly compressed air-driven, it is characterized in that compressed air-driven partly has import to chew (1), pressing plate (2), valve (3), cylinder sleeve (4), cylinder body (5), piston (6), block stamp (7) and cylinder (16), radial hole (13) is arranged on cylinder body (5), radial hole (14) and axial hole (15) are arranged on piston (6), and impacting partly has needle guard (8), draw point (10), guide cylinder (11) and spring (9).

2, pneumatic chipping chisel according to claim 1 is characterized in that the port of guide cylinder (11) is " 0 " type.