CN207387578U - A kind of steel ball releasing structure of light electric hammer output shaft - Google Patents
A kind of steel ball releasing structure of light electric hammer output shaft Download PDFInfo
- Publication number
- CN207387578U CN207387578U CN201721457607.8U CN201721457607U CN207387578U CN 207387578 U CN207387578 U CN 207387578U CN 201721457607 U CN201721457607 U CN 201721457607U CN 207387578 U CN207387578 U CN 207387578U
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- steel ball
- dropout
- turning set
- movable plate
- transmission gear
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Abstract
A kind of steel ball releasing structure of light electric hammer output shaft, including turning set, it is set with gasket, torque spring, dropout movable plate, dropout fixed plate and transmission gear on the turning set successively from top to bottom, the dropout movable plate is moving up and down to be mounted on turning set, the upper end of the torque spring is contacted on gasket, and the lower end of the torque spring is contacted on the dropout movable plate；Steel ball hole is circumferentially offered in the dropout fixed plate, steel ball is installed in the steel ball hole, limiting slot is provided on the position corresponding to steel ball hole on the upper surface of the transmission gear, the lower end of the steel ball is stretched into the limiting slot, the upper end of the steel ball is compressed by the dropout movable plate, the transmission gear and the turning set clearance fit.The utility model provides a kind of elasticity stable, the steel ball releasing structure of light electric hammer output shaft not easy to break.
Description
Technical field
The utility model is related to light electric hammer technical fields, thread off more particularly, to a kind of steel ball of light electric hammer output shaft
Structure.
Background technology
The castellated releasing structure of existing light electric hammer, can be by rotor axis of electric when drill bit is stuck in electric hammer operational process
The torsion of output continues to be transferred to drill bit, hinders operating personnel so as to generate huge torsion on drill bit and get rid of, security is poor.Due to tooth
Embedded releasing structure, transmission gear and dropout fixed plate are the castellated cooperations between groove and double wedge, therefore during assembling, in order to
Transmission torque is uniform, and the tooth in castellated dropout can generate impact force when disconnecting, and easy snaggletooth has security risk hidden danger；
Processed complex simultaneously, efficiency is low, of high cost.
The content of the invention
In order to overcome existing light electric hammer there are security it is poor the defects of, it is steady that the utility model provides a kind of elastic force
The steel ball releasing structure of fixed, not easy to break light electric hammer output shaft.
Technical solution is used by the utility model solves its technical problem：
A kind of steel ball releasing structure of light electric hammer output shaft, including turning set, on the turning set from top to bottom successively
Gasket, torque spring, dropout movable plate, dropout fixed plate and transmission gear are set with, the dropout movable plate can move up and down
Be mounted on turning set on, the upper end of the torque spring is contacted on gasket, and the lower end of the torque spring is contacted described
On dropout movable plate；
Steel ball hole is circumferentially offered in the dropout fixed plate, steel ball, the transmission are installed in the steel ball hole
Limiting slot is provided on the upper surface of gear on the position corresponding to steel ball hole, the limiting slot is stretched into the lower end of the steel ball
Interior, the upper end of the steel ball is compressed by the dropout movable plate, the transmission gear and the turning set clearance fit；
By the axle elastic spring /V above it on turning set, the transmission gear passes through below the gasket
Axle elastic spring /V on turning set.
Further, the steel ball hole is provided with eight, and the steel ball is also provided with eight and is corresponded with steel ball hole, the steel
Ball is Φ 5mm steel balls.
The beneficial effects of the utility model are mainly manifested in：It in reliable operation safety, rolls and replaces sliding, during overload, move
Make high sensitivity, being not present in the course of work has phenomenon of rupture, there is the ability resumed work automatically；It being simple to manufacture, reliability is high,
Production efficiency is high, at low cost.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the explosive view of Fig. 1.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings.
Reference Fig. 1~Fig. 3, a kind of steel ball releasing structure of light electric hammer output shaft, including turning set 1, the turning set 1
On be set with gasket 3, torque spring 4, dropout movable plate 5, dropout fixed plate 7 and transmission gear 8 successively from top to bottom, it is described de-
It is moving up and down on turning set 1 to detain movable plate 5, the upper end of the torque spring 4 is contacted on gasket 3, the torsion
The lower end of power spring 4 is contacted on the dropout movable plate 5；
Steel ball hole is circumferentially offered in the dropout fixed plate 7, steel ball 6, the biography are installed in the steel ball hole
Limiting slot is provided on the upper surface of moving gear 8 on the position corresponding to steel ball hole, the limit is stretched into the lower end of the steel ball 6
In the slot of position, the upper end of the steel ball 6 is compressed by the dropout movable plate 5, and the transmission gear 8 is matched somebody with somebody with 1 gap of turning set
It closes；
For the gasket 3 by the axle elastic spring /V above it on turning set 1, the transmission gear 8 passes through it
The axle elastic spring /V of lower section is on turning set 1.
Further, the steel ball hole is provided with eight, and the steel ball 6 is also provided with eight and is corresponded with steel ball hole, described
Steel ball 6 is Φ 5mm steel balls.
Steel ball releasing structure as shown in Figure 2, including turning set 1, is set with axle-steel silk successively from top to bottom on turning set 1
Baffle ring 2, gasket 3, torque spring 4, dropout movable plate 5, steel ball 6, dropout fixed plate 7, transmission gear 8 and axle elastic spring 2,
Torque spring 4 is pressed on by the axle elastic spring and gasket on dropout movable plate；Dropout movable plate 5 also passes through torsion bullet
The dropout fixed plate 7 is pressed on transmission gear 8 by spring 4.
The operation principle of the utility model：Light electric hammer in use, when drill bit is by card, but motor also run well, it is necessary to
A kind of safety release structure, decomposes away the torque of motor, and the decomposition of dropout torque is by said structure in the utility model
Steel ball stress push up upwards, the open-top dropout movable plate 5 for being pressed with torsion spring 4 rolls out the limiting slot of Transmission gear 8, torsion bullet
Spring 4 is realized by its elastic shrinkage.
The utility model when drill bit is stuck in electric hammer operational process, can at once stop the torsion of rotor axis of electric output after
It is continuous to be transferred to drill bit, hinder operating personnel so as to prevent from generating huge torsion on drill bit and get rid of, improve the security of operation.
Claims (2)
1. a kind of steel ball releasing structure of light electric hammer output shaft, including turning set, it is characterised in that：From upper on the turning set
Gasket, torque spring, dropout movable plate, dropout fixed plate and transmission gear are set under and successively, the dropout movable plate can
What is moved up and down is mounted on turning set, and the upper end of the torque spring is contacted on gasket, the lower end top of the torque spring
It touches on the dropout movable plate；
Steel ball hole is circumferentially offered in the dropout fixed plate, steel ball, the transmission gear are installed in the steel ball hole
Upper surface on limiting slot is provided on the position corresponding to steel ball hole, the lower end of the steel ball is stretched into the limiting slot,
The upper end of the steel ball is compressed by the dropout movable plate, the transmission gear and the turning set clearance fit；
For the gasket by the axle elastic spring /V above it on turning set, the transmission gear passes through axis below
With elastic spring /V on turning set.
2. a kind of steel ball releasing structure of light electric hammer output shaft as described in claim 1, it is characterised in that：The steel ball hole
Eight are provided with, the steel ball is also provided with eight and is corresponded with steel ball hole, and the steel ball is Φ 5mm steel balls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721457607.8U CN207387578U (en) | 2017-11-01 | 2017-11-01 | A kind of steel ball releasing structure of light electric hammer output shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721457607.8U CN207387578U (en) | 2017-11-01 | 2017-11-01 | A kind of steel ball releasing structure of light electric hammer output shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207387578U true CN207387578U (en) | 2018-05-22 |
Family
ID=62324526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721457607.8U Active CN207387578U (en) | 2017-11-01 | 2017-11-01 | A kind of steel ball releasing structure of light electric hammer output shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207387578U (en) |
-
2017
- 2017-11-01 CN CN201721457607.8U patent/CN207387578U/en active Active
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