CN214490368U

CN214490368U - Beating assembly of pneumatic wrench

Info

Publication number: CN214490368U
Application number: CN202120575408.7U
Authority: CN
Inventors: 潘灵钢; 邵先月; 丁仁
Original assignee: ZHEJIANG REFINE WUFU AIR TOOLS CO Ltd
Current assignee: ZHEJIANG REFINE WUFU AIR TOOLS CO Ltd
Priority date: 2021-03-20
Filing date: 2021-03-20
Publication date: 2021-10-26
Anticipated expiration: 2031-03-20

Abstract

The utility model belongs to the technical field of pneumatic spanner, a pneumatic spanner's subassembly of beating is related to, beat the frame, beat piece and transmission shaft including coaxial setting, beat the rear end of frame and drive arrangement meshing transmission, beat the piece setting in beating the frame and through beat round pin and beat a fixed connection, the transmission shaft is worn to establish in beating the frame and beating the piece, it is provided with a pair of and symmetric distribution to beat the piece, is provided with a plurality of recesses on two relative terminal surfaces of piece or one of them terminal surface to beat two. The utility model provides a pneumatic spanner's subassembly of beating can prevent that pneumatic spanner's the piece of beating from gluing each other when beating and influencing the effect of beating.

Description

Beating assembly of pneumatic wrench

Technical Field

The utility model belongs to the technical field of pneumatic spanner, a pneumatic spanner beats subassembly is related to.

Background

The pneumatic wrench uses compressed air as a working medium and is used for screwing and disassembling the threaded fastener. The pneumatic wrench has the advantages of convenience in use, low cost, no pollution and the like, and is widely applied to assembly of various industries such as automobiles, ships and the like.

The Chinese patent application CN101708601A discloses a pneumatic wrench, which comprises a transmission shaft, a pneumatic rotor arranged on the same axis with the transmission shaft, a cylinder and a wrench body sleeved outside the pneumatic rotor, a front cover and a rear cover arranged at the front and rear parts of the cylinder, an air inlet channel and a pneumatic switch communicated with the cylinder, an oil-containing shaft sleeve arranged at the front end of the transmission shaft, a hammering chamber shell and a front sheath arranged outside the transmission shaft and meshed with the pneumatic rotor for transmission, a hammering block fixed in the hammering chamber shell through a fixing pin, an annular groove arranged at the inner side of the tail end of the front sheath, and a cylinder front cover clamped in the annular groove, a sealing ring is arranged between the front sheath and the body, the front sheath is connected with the wrench body through a connecting bolt to lock the cylinder, the tail of the mounting hole of the hammering chamber shell is provided with a necking part for limiting the fixing pin, the fixing pin is arranged in the mounting hole, and a hammering block is positioned between the fixing pin and the transmission shaft through the fixing pin.

The pneumatic wrench has the following disadvantages: the terminal surface of beating the piece is the smooth surface, and two terminal surfaces of beating the piece have probably to inhale together when beating, can't get rid of to lead to the accidental striking that can't carry out next time, seriously influence pneumatic spanner's use experience effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art not enough, provide a subassembly of beating of pneumatic spanner, prevent that the piece of beating of pneumatic spanner from gluing each other when beating and influencing the striking effect.

In order to solve the above technical problem, the purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a pneumatic spanner's subassembly of beating, includes coaxial setting beat the frame, beat piece and transmission shaft, beat the rear end and the drive arrangement meshing transmission of frame, beat the piece setting in beating the frame and through beating round pin and beat frame fixed connection, the transmission shaft is worn to establish in beating frame and beating the piece, it is provided with a pair of and symmetric distribution to beat the piece, is provided with a plurality of recesses on two relative terminal surfaces of two pieces of beating or one of them terminal surface.

In the hammering assembly of the above-mentioned pneumatic wrench, the recess may be provided in various sizes. For example:

the grooves are arc-shaped and distributed at intervals.

Or the groove is a circular groove and/or a partial circular groove corresponding to the contour of the end face of the hammering block. The partial circular ring groove means that a complete circular ring is cut into partial circular rings due to the limitation of the contour of the end face of the hammering block.

Preferably, the axis of the circular ring-shaped groove and/or the partial circular ring-shaped groove is the same as the axis of the hammering block.

In the above-described hammering assembly for a pneumatic wrench, it is more preferable that, as compared with the case where the recess is provided only on one of the opposite end faces: two opposite end surfaces of the two hammering blocks are provided with grooves, and the grooves are arranged at the same position.

In the hammering assembly of the pneumatic wrench, the width of the groove is 0.5-2mm, and the depth is 0.1-0.5 mm.

In the hammering assembly of the pneumatic wrench, the groove is filled with lubricating oil, and the groove can be used as an oil groove.

Compared with the prior art, the utility model, following beneficial effect has:

1. the utility model discloses a set up the recess beating the relative terminal surface of piece, prevent to beat the piece and inhale together and take place glutinous company at the relative terminal surface of in-process of striking, lead to next striking unable going on.

2. The utility model discloses a recess also can be used as the oil storage tank, plays lubricated effect through filling lubricating oil in the recess.

Drawings

FIG. 1 is a perspective view of the present invention after assembly;

FIG. 2 is a perspective view of the hammering block of the present invention;

FIG. 3 is a front view of the hammering block of the present invention;

reference numerals: 1. a beating frame; 2. beating the blocks; 3. a drive shaft; 4. hammering the pin; 5. and (4) a groove.

Detailed Description

The invention will be further described in the following with reference to specific embodiments thereof, with reference to the accompanying drawings, in which figures 1 to 3:

the utility model provides a pneumatic spanner's subassembly of beating, includes coaxial setting beat frame 1, beat piece 2 and transmission shaft 3, beat the rear end and the drive arrangement meshing transmission of frame 1, beat piece 2 sets up in beating frame 1 and through beating round pin 4 with beat 1 fixed connection of frame, 3 wear to establish in beating frame 1 and beat piece 2 of transmission shaft, beat piece 2 and be provided with a pair of and symmetric distribution, be provided with a plurality of recesses 5 on two relative terminal surfaces of 2 or one of them terminal surfaces of beating piece, through setting up recess 5, prevent to beat piece 2 and inhale together and take place glutinous company in the relative terminal surface of in-process of beating, lead to the unable condition of going on of beating next time to take place.

Referring to fig. 2 and 3, the grooves 5 in the embodiment are circular grooves and partial circular grooves corresponding to the end surface profile of the hammering block 2, the axes of the circular grooves and the partial circular grooves are the same as the axis of the hammering block 2, and the grooves 5 are provided with three grooves. Of course, the grooves 5 may be set to other specifications, for example, the grooves 5 are arc-shaped and distributed at intervals

In order to obtain better anti-adhesion effect, the two opposite end surfaces of the two hammering blocks 2 are provided with grooves 5, and the grooves 5 of the two hammering blocks are arranged at the same position.

The most preferred dimensional settings for the above-mentioned grooves 5 are: the width of the groove 5 is 0.5-2mm, and the depth is 0.1-0.5 mm.

In order to obtain better lubricating effect, the operation of the pneumatic wrench is smoother, lubricating oil can be filled into the groove 5, and the groove 5 is used as an oil groove.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a pneumatic wrench's subassembly of beating, includes coaxial setting beat frame (1), beat piece (2) and transmission shaft (3), the rear end and the drive arrangement meshing transmission of beating frame (1), beat piece (2) set up in beating frame (1) and through beating round pin (4) and beat frame (1) fixed connection, transmission shaft (3) wear to establish in beating frame (1) and beat piece (2), its characterized in that, beat piece (2) be provided with a pair of and symmetric distribution, be provided with on two relative terminal surfaces of two pieces of beating (2) or one of them terminal surface a plurality of recesses (5).

2. A hammering assembly for a pneumatic wrench according to claim 1, characterised in that said grooves (5) are arranged as arc-shaped grooves and are spaced apart from each other.

3. A hammering assembly for a pneumatic wrench according to claim 1, characterised in that said recess (5) is provided as a circular groove and/or as a partial circular groove corresponding to the profile of the end face of the hammering block (2).

4. A hammering assembly for a pneumatic wrench according to claim 3, characterised in that the axis of the circular and/or partial circular grooves is coaxial with the axis of the hammering block (2).

5. A hammering assembly for a pneumatic wrench according to claim 1, characterized in that the two opposing end faces of the two hammering blocks (2) are provided with grooves (5), and the grooves (5) of both are provided at the same position.

6. A hammering assembly for a pneumatic wrench according to claim 1, characterised in that said grooves (5) have a width of 0.5-2mm and a depth of 0.1-0.5 mm.

7. A hammering assembly for pneumatic wrenches, according to claim 1, characterised in that said recess (5) is filled with lubricating oil.