CN2267891Y

CN2267891Y - Hand-held electric angle polisher

Info

Publication number: CN2267891Y
Application number: CN 95213777
Authority: CN
Inventors: 金克勤; 胡灵平
Original assignee: HENGFENG ELECTRIC APPLIANCE PRODUCING CO YONGKANG ZHEJIANG
Current assignee: HENGFENG ELECTRIC APPLIANCE PRODUCING CO YONGKANG ZHEJIANG
Priority date: 1995-06-23
Filing date: 1995-06-23
Publication date: 1997-11-19
Anticipated expiration: 2005-06-23

Abstract

The utility model relates to a portable electric angular orientation polisher. The utility model is mainly composed of an output shaft, a front cover, a reduction box, a braking button, a center cover, a switch, a housing, a stator, a rotor and a fan, wherein, the front cover and the reduction box are matched through a transition surface; the braking button is connected with a braking rod and a braking spring, and a grinding wheel sheet can be conveniently disassembled; the fan is in a mixing type which integrates an axial flow type and a centrifugal type; a wind stopping ring and a stator screw nail are pressed in an elastic state through an eraser, and a distance between the fan and the wind stopping ring is guaranteed. A brush handle of the utility model, which is in a detachable type, is connected with the housing through a dovetail groove. The utility model has the advantages of compact structure and convenient use.

Description

The hand held, electric electric angle grinder

The utility model relates to a kind of electric tool, particularly a kind of hand held, electric electric angle grinder.

Existing electric hand angular grinder has a variety of, removing surface, unhairing, weld seam bevel and sand milling, thin-wall pipes and light shape cutting etc. mainly as metallic element, after changing suitable working head, also can be used for derusting, polishing of metal or other material, extensively be suitable in departments such as machinery, traffic, chemical building, metallurgy, electric power, but existing electric polishing machine, general dismounting emery wheel, the brush carrier inconvenience of existing, protecgulum cooperates not tight with reduction box, problems such as wind loop and fan distance be cannot say for sure to demonstrate,prove, and the fan structure form is single.

The purpose of this utility model provides the more reasonable compactness of a kind of structure, uses more convenient hand held, electric electric angle grinder is installed.

The utility model is realized by following technical proposal.

The mating surface of protecgulum of the present utility model and reduction box is designed to a transition face in manufacture process, locking key is made eccentric shape, and is connecting brake bar and tripping spring, and brake bar can match with the gear hole on the output shaft, can prevent during braking that output shaft from rotating, thus grinding wheel for convenience detach.

The utility model adopts a plastic part middle cover to make structure more compact, and has reduced the trouble of using bearing cap.

Fan of the present utility model integrates axial-flow type and centrifugal fan, is hybrid combination, and designs a wind loop, and wind loop adopts rubber and stator screw to lean on elastic compression, guarantees the distance of fan and wind loop.

The connecting mode of brush carrier lid of the present utility model, brush, brush carrier and casing is detachable, links by dovetail groove and casing.

The utility model compared with prior art owing to adopted locking key and brake bar, makes the grinding wheel convenient disassembly, and the unique design of protecgulum and reduction box, the use of middle cover make more compact and reasonable of structure; The utility model collection axial-flow type and centrifugally be the hybrid air draft better effects if that makes of one, wind loop adopt rubber and stator screw by elastic compression, have guaranteed the distance of fan and wind loop.

Accompanying drawing is the utility model structural representation.

Below in conjunction with accompanying drawing the utility model being done one describes in detail.

As shown in the figure, novel output shaft (1), protecgulum (2), reduction box (4), locking key (9), switch (22), the casing 19 of mainly comprising of this reality), front and back bearings (11), (21), back cover (23), sheath (24), wherein protecgulum (2) and reduction box (4) be combined with a transition face, make cooperate compact slick and sly; One needle bearing (5) is arranged in the reduction box (4); locking key (9) is made eccentric shape; under connect brake bar (6) and tripping spring (7); the outer design of tripping spring (7) one back-up ring (8); when pressing locking key (9); hole effect on brake bar (6) and the gear wheel (3) cooperates; can prevent that output shaft (1) from rotating; so just can dismantle grinding wheel easily; back-up ring (8) shields as the time spent at tripping spring (9); design one plastic part middle cover (12) between casing (19) and reduction box (4); and link to each other with pinion (10) by fore bearing (11); mainly contain stator (17) in the casing (19); rotor (18); fan (13); fan (13) is a working of plastics; be integrate tube-axial fan and centrifugal fan hybrid; wind loop (14) is close to rubber (15) and stator (17) screw; guarantee the distance of fan (13) and wind loop (14); make fan (13) wipe phenomenon mutually with the little error that prevents because of making or processing with wind loop (14); one switch push button (16) is arranged outside the casing (19); link to each other with switch connecting rod (20) down; switch (22) has the structure of special homing; brush carrier lid (25); brush (26); brush carrier (27) is detachable with the connecting mode of casing (19); it is installed by dovetail groove and links to each other compact conformation with casing (19).

Claims

1, a kind of hand held, electric electric angle grinder, comprise output shaft, reduction box, locking key, switch, casing, stator, rotor, fan, it is characterized in that: locking key (9) is connecting brake bar (6) and tripping spring (7), back-up ring (8) is arranged outside the tripping spring (7), fan (13) is that collection axial-flow type be the hybrid combination of one with centrifugal, and the fixing of its wind loop (14) leans on elastic compression with rubber (15) and stator (17) screw.

2, according to the described hand held, electric electric angle grinder of claim 1, it is characterized in that: protecgulum (2) and reduction box (4) be combined with a transition face, between reduction box (4) and casing (19) middle cover (12) is arranged.

3, according to claim 1 or 2 described hand held, electric electric angle grinders, it is characterized in that: brush carrier lid (25), brush (26), brush carrier (27) are detachable with connecting of casing (19), link to each other with casing (19) by dovetail groove.