CN207171911U - A kind of efficient output mechanism of electric wrench - Google Patents
A kind of efficient output mechanism of electric wrench Download PDFInfo
- Publication number
- CN207171911U CN207171911U CN201721048074.8U CN201721048074U CN207171911U CN 207171911 U CN207171911 U CN 207171911U CN 201721048074 U CN201721048074 U CN 201721048074U CN 207171911 U CN207171911 U CN 207171911U
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- CN
- China
- Prior art keywords
- oil groove
- output shaft
- electric wrench
- steel bushing
- helical oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of efficient output mechanism of electric wrench, it is connected including the impact component in shell and with impact component and stretches out the output shaft of shell, also include the steel bushing being sheathed on the output shaft, oil groove is provided between the steel bushing and output shaft, the oil groove is helical oil groove.Using device described in the utility model, output shaft and the steel bushing mating part of electric wrench can sufficiently be lubricated, and are not easy to be corroded and are got rusty and deform, service life is extended.
Description
Technical field
The utility model belongs to assembly tool field, more particularly to a kind of efficient output mechanism of electric wrench.
Background technology
Electric wrench is exactly using power supply or battery as the spanner of power, is a kind of instrument for tightening bolt.It is broadly divided into punching
Hit spanner, torsion is cut spanner, constant torque wrench, corner spanner, angular spanner, hydraulic spanner, torque spanner, charged electric and pulled
Hand.Impact wrench is the instrument for screwing screw, bolt, fixture etc..Impact wrench generally comprises motor, The gear deceleration
Mechanism and percussion mechanism.When electric wrench operates, the output shaft of percussion mechanism front end can produce friction with the steel bushing of its periphery, right
Output shaft and steel bushing produce abrasion, reduce the service life of electric wrench.Electric wrench on the market passes through in output shaft at present
Oil groove is set between steel bushing, friction is reduced in the form of adding grease.But the linear pattern oil groove used at present can not make output
The mating part of axle and steel bushing is fully still serious by oil, the mating part abrasion of output shaft and steel bushing.
The content of the invention
Problem to be solved in the utility model is：A kind of efficient output mechanism of electric wrench is provided.
To solve the above problems, technical scheme provided by the utility model is:A kind of efficient output mechanism of electric wrench,
It is connected including the impact component in shell and with impact component and stretches out the output shaft of shell, in addition to is sheathed on described defeated
Steel bushing on shaft, is provided with oil groove between the steel bushing and output shaft, the oil groove is helical oil groove.
Further, in addition to the helical oil groove is burnishing surface helical oil groove, reduces the friction of helical oil groove
Coefficient is to reduce the helical oil groove surface abrasion.
Further, the helical oil groove is alramenting helical oil groove, effectively prevents helical oil groove to be corroded.
Further, the contact surface of the helical oil groove and output shaft is arc contacting surface, avoids contact with area because of generation office
The plastic deformation in portion causes output shaft to be damaged with steel bushing mating part.
Further：Oilhole is provided with the output shaft, the oilhole is connected with helical oil groove, and grease is through oil duct from oil
Hole is lubricated into the helical oil groove.
The utility model has the advantages that:The output shaft of electric wrench can sufficiently be lubricated with steel bushing mating part,
It is not easy to be corroded and gets rusty and deform, service life is extended.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
Fig. 1 is the output shaft and steel bushing mating part profile of electric wrench；
Fig. 2 is the profile of the steel bushing provided with helical oil groove；
Wherein：1 steel bushing, 2 output shafts, 3 helical oil grooves.
Embodiment
Embodiment 1:With reference to shown in Fig. 1 and Fig. 2：A kind of electric wrench, including spanner housing and spanner base, the spanner
The impact component that enclosure interior includes motor, is motor driven（It is not drawn into figure）, the output shaft that is connected with impact component front end
2, the output shaft outside is provided with steel bushing 1, and helical oil groove 3 is provided between steel bushing 1 and output shaft 2.The helical oil groove 3 is
Burnishing surface helical oil groove, coefficient of friction are reduced.The helical oil groove 3 and alramenting helical oil groove, are not easy
It is corroded.The contact surface of the helical oil groove 3 and output shaft is arc contacting surface.Oilhole is provided with the output shaft 2（In figure
It is not drawn into）, the oilhole is connected with helical oil groove 3.
After being passed through power supply, the motor operating in the electric wrench housing, during the motor driving is connected with each other
Mandrel（It is not drawn into figure）With output shaft 2, the output shaft 2 rotates, and the grease in helical oil groove 3 enters through oil duct and oilhole
Fully contacted with the mating part of steel bushing 1 and output shaft 2 in helical oil groove 3, reach the purpose of lubrication.Helical oil groove 3
Elastic deformation or less plastic deformation, the portion that arc contacting surface does not contact with output shaft 2 occur under force for arc contacting surface
Point gradually to pressing close to therewith, avoiding contact with area local plastic deformation directly occurs causes to damage.
For examples detailed above only to illustrate technical concepts and features of the present utility model, its object is to allow be familiar with technique
People is can to understand content of the present utility model and implement according to this, can not limit the scope of protection of the utility model with this.It is all
The equivalent transformation done according to the utility model Spirit Essence or modification, should all cover the scope of protection of the utility model it
It is interior.
Claims (5)
1. a kind of efficient output mechanism of electric wrench, including impact component in shell and it is connected and stretches with impact component
Go out the output shaft of shell, in addition to the steel bushing being sheathed on the output shaft, oil groove is provided between the steel bushing and output shaft, its
It is characterised by：The oil groove is helical oil groove.
A kind of 2. efficient output mechanism of electric wrench according to claim 1, it is characterised in that：The helical oil groove
For burnishing surface helical oil groove.
A kind of 3. efficient output mechanism of electric wrench according to claim 1 or 2, it is characterised in that：The spiral shape
Oil groove is alramenting helical oil groove.
A kind of 4. efficient output mechanism of electric wrench according to claim 1, it is characterised in that the helical oil groove
The contacting surface contacted with output shaft is arc contacting surface.
5. the efficient output mechanism of a kind of electric wrench according to claim 1, it is characterised in that set in the output shaft
There is oilhole, the oilhole is connected with helical oil groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721048074.8U CN207171911U (en) | 2017-08-21 | 2017-08-21 | A kind of efficient output mechanism of electric wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721048074.8U CN207171911U (en) | 2017-08-21 | 2017-08-21 | A kind of efficient output mechanism of electric wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207171911U true CN207171911U (en) | 2018-04-03 |
Family
ID=61740246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721048074.8U Active CN207171911U (en) | 2017-08-21 | 2017-08-21 | A kind of efficient output mechanism of electric wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207171911U (en) |
-
2017
- 2017-08-21 CN CN201721048074.8U patent/CN207171911U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |