CN2268603Y

CN2268603Y - Portable electric spanner

Info

Publication number: CN2268603Y
Application number: CN 96220002
Authority: CN
Inventors: 李钦海
Original assignee: LONGYAN ELECTRIC TOOLS FACTORY FUJIAN PROV
Current assignee: LONGYAN ELECTRIC TOOLS FACTORY FUJIAN PROV
Priority date: 1996-07-30
Filing date: 1996-07-30
Publication date: 1997-11-26
Anticipated expiration: 2006-07-30

Abstract

The utility model discloses a portable electric spanner. In order to solve the problems that the head part of a rotation shaft [1] is easy to break, a shifting fork [4] is easy to break, and a spring is easy to block, the utility model adopts the methods that the rotation shaft [1] is contacted with a fly hammer body [12] through a positioning bulkhead [14] in a line way, and the shifting fork [4] is fixed on an impulse pin [3] through screw bolts [5]. The utility model has the advantages that the service life is extended, the cost is saved, etc. The utility model is an ideal dismantling tool for screw bolts and nuts.

Description

Hand-held percussion electric plate shearing machine

The utility model relates to a kind of electric plate shearing machine, especially a kind of impact electric plate shearing machine of being made up of motor, motor shaft, movable rod, impulse pin, fling rammer, rotating shaft and shell.

Chinese patent Granted publication CN2141751Y discloses a kind of like this impact electric plate shearing machine, its design feature is to drive the fling rammer running by motor by motor shaft, decontrol movable rod then, spring after compression is together with the shift fork that play the guiding role, impulse pin is ejected the fling rammer some, impact rotating shaft simultaneously, and the drive rotating shaft comes dismounting nut or bolt.But, since the bump of impulse pin, the head fracture that rotating shaft is cooperated with fling rammer; In addition, when movable rod drives shift fork, make the impulse pin withdrawal at a high speed during the fling rammer of rotation, shift fork and impulse pin often have the inconsistent and spring torsional deformation phenomenon of action, cause shift fork to rupture and spring stuck, make the electric plate shearing machine cisco unity malfunction.

The purpose of this utility model provides and a kind ofly can not produce shaft head fracture and be difficult for producing the shift fork fracture and the stuck hand-held of spring is pulled the trigger electric plate shearing machine, thereby greatly prolongs impact electric plate shearing machine service life.

The utility model is achieved in that the hand-held percussion electric plate shearing machine of being made up of motor, motor shaft, movable rod, impulse pin, fling rammer, rotating shaft and shell, and rotating shaft contacts by location plug line with fling rammer; Shift fork is fixed on the impulse pin by caging bolt; Big spring one end contacts with the shift fork end face, and little spring one end contacts with the caging bolt sleeveless jacket; The big spring and the little spring other end withstand on the plug.

After adopting such structure, owing to there is not to be provided with the head that is connected with fling rammer in the rotating shaft, again because the position of shift fork on impulse pin is to be fixed by caging bolt, big little spring one end contacts with caging bolt with shift fork respectively, the other end contacts with plug by lead, thereby the utlity model has rotating shaft and can not rupture; Shift fork not easy fracture and spring is difficult for stuckly, and advantage such as increase the service life.

Below in conjunction with drawings and embodiments the utility model is described in further detail.

Accompanying drawing shows schematic diagram for cuing open of electric plate shearing machine of the utility model hand-held percussion.

The percussion of hand-held shown in accompanying drawing electric plate shearing machine is made up of motor 10, motor shaft 9, movable rod 11, impulse pin 3, fling rammer 12, rotating shaft 1 and shell 2.Rotating shaft 1 contacts by location plug 14 lines with fling rammer 12, and rotating shaft 1 is processed with the concave conical surface shape by the end face center that impulse pin 3 impacts, and location with matching plug 14 1 ends are curve form; Shift fork 4 is fixed on the impulse pin 3 by caging bolt 5; Big spring 6 one ends contact with shift fork 4 end faces, and little spring 13 1 ends contact with caging bolt 5 sleeveless jackets; The big spring 6 and little spring 13 other ends withstand on the plug 8; The sleeveless jacket external diameter of caging bolt 5 should be less than big spring 6 internal diameters, greater than little spring 13 external diameters; Plug 8 is provided with spring lead 7.

When industry is made, shell 2 is formed through machined by cast steel, motor shaft 9 one ends are fixedlyed connected with fling rammer 12, a movable rod 11 is housed in the motor shaft 9, movable rod 11 1 ends are processed with sleeveless jacket, impulse pin 3 one end face centers are processed with screwed hole, and shift fork 4 is fixed on the impulse pin 3 by caging bolt 5, and shift fork 4 other ends place in movable rod 11 sleeveless jackets; Big little spring one end respectively with shift fork 4 end faces with place restrictions on bolt 5 sleeveless jackets and contact, the other end is arranged between impulse pin 3 and pad, kick-pad and the plug 8 by lead 7, fling rammer 12 1 end shaft core positions near rotating shaft 1 are equipped with location plug 14, and expose fling rammer 12 parts, this exposes partly and is processed into curve form, places rotating shaft 1 one end face centers to be processed with in the concave conical surface, is the line contact, rotating shaft 1 is connected with shell 2 by axle sleeve, and movable rod 11 other ends are connected with the plate machine.

When hand-held percussion electric plate shearing machine is in running order, stir shift fork 4 by the plate machine through movable rod 11 impulse pin 3 is pressed in the fling rammer 12, simultaneously, impulse pin 3 compression spring savings potential energy.At this moment, motor 10 drives fling rammer 12 by motor shaft 9 and rotates, the swinging plate machine, and under the effect of spring force, the pin head of impulse pin 3 ejects fling rammer 12 fast, and drives rotating shaft 1 rotation, the both dismantled and assembled bolt of the rotating shaft 1 in the rotation, nut.

Claims

1, a kind of hand-held percussion electric plate shearing machine of being made up of motor [10], motor shaft [9], movable rod [11], impulse pin [3], fling rammer [12], rotating shaft [1] and shell [2] is characterized in that rotating shaft [1] contacts by location plug [14] line with fling rammer [12]; Shift fork [4] is fixed on the impulse pin [3] by caging bolt [5]; Big spring [6] one ends contact with shift fork [4] end face, and little spring [13] one ends contact with caging bolt [5] sleeveless jacket, and the big spring [6] and little spring [13] other end withstand on the plug [8].

2, hand-held percussion electric plate shearing machine according to claim 1 is characterized in that rotating shaft [1] is processed with the concave conical surface shape by the end face center that impulse pin [3] impacts.

3, hand-held percussion electric plate shearing machine according to claim 1, it is characterized in that locating plug [14] one ends is curve form.

4, hand-held percussion electric plate shearing machine according to claim 1 is characterized in that caging bolt [5] is provided with sleeveless jacket, and the external diameter of sleeveless jacket should be less than big spring [6] internal diameter, greater than little spring [13] external diameter.

5, hand-held percussion electric plate shearing machine according to claim 1 is characterized in that plug [8] is provided with spring lead [7].