CN206544133U - A kind of electric screw driver of adjustable output torque - Google Patents
A kind of electric screw driver of adjustable output torque Download PDFInfo
- Publication number
- CN206544133U CN206544133U CN201720187188.4U CN201720187188U CN206544133U CN 206544133 U CN206544133 U CN 206544133U CN 201720187188 U CN201720187188 U CN 201720187188U CN 206544133 U CN206544133 U CN 206544133U
- Authority
- CN
- China
- Prior art keywords
- friction pulley
- output
- input
- input shaft
- shaft
- 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.)
- Expired - Fee Related
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- Transmission Devices (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model is related to a kind of electric screw driver of adjustable output torque, and it inputs friction pulley mainly by input shaft, and key exports friction pulley, output shaft composition.The input shaft is provided with keyway, for coordinating with key.The input friction pulley is engaged by key with input shaft so that input friction pulley can be in axial sliding relative to input shaft.The output friction pulley is truncated conical shape, and it is engaged with input friction pulley, passes through frictional drive.The output friction pulley and output shaft fixed connection, the output shaft other end is connected driver bit (not pointed out in figure), and input shaft is another to be terminated with motor.Because input friction pulley can be slided relative to input shaft, therefore just the transmission radius of output friction pulley can be adjusted by inputting the axial movement of friction pulley, so as to realize the regulation to output torque.The utility model is simple in construction, realizes the step-less adjustment to output torque.
Description
Technical field
The utility model is related to screwdriver manufacturing technology field, more particularly, to a kind of electronic spiral shell of adjustable output torque
Silk knife.
Background technology
Screwdriver is for screw to be tightened to force the important tool that its is in place, and for different screws
Speech, its torsion maximum allowed is inevitable different.Torsion is excessive, screw or driver bit can be caused to damage, and led in part
Domain, torsion crosses conference so that screw is embedding dead in pilot hole, it is difficult to takes out, wastes time and energy；Torsion is too small, can to coordinate not
Closely, so that causing the accident.
The content of the invention
The utility model have devised regarding to the issue above it is a kind of simple in construction, can to output torque carry out step-less adjustment
Electric screw driver.
The technical scheme that the utility model is used is：
The utility model is main by input shaft, inputs friction pulley, and key exports friction pulley, and output shaft is constituted.The input shaft
Keyway is provided with, for coordinating with key.The input friction pulley is engaged by key with input shaft so that input friction pulley can phase
It is in axial sliding for input shaft.The output friction pulley is truncated conical shape, and it is engaged with input friction pulley, passes through friction
Transmission.The output friction pulley and output shaft fixed connection, the output shaft other end is connected driver bit (not pointed out in figure).Input shaft is right
Be terminated with motor, to prevent stand under load is excessive from causing motor to stall, should make input shaft loaded can be provided less than motor
Torque capacity.Because input friction pulley can be slided relative to input shaft, therefore just it can be adjusted by inputting the axial movement of friction pulley
The transmission radius of friction pulley is exported, so as to realize the regulation to output torque.The torque capacity that can be provided by motor is more than defeated
Enter axle institute it is loaded, then exportable max. output torque should be equal to two friction pulleys between maximal friction with output friction pulley this
When transmission radius product, therefore need to only adjust max. output torque, make it equal to tighten the torque needed for screw, just
Tightening to the screw of different torsion maximums can be achieved.And after screw is tightened, two friction pulleys skid automatically, to prevent
Screw is because torsion is excessive and damages.
Brush advantage of the present utility model：It is simple in construction, the step-less adjustment to output torque is realized, passes through two gearing frictions
Skidding between wheel realizes the protection to motor.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1. input shaft, 2. input friction pulleys, 3. keys, 4. output friction pulleys, 5. output wheels.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings.
As shown in figure 1, the utility model is main by input shaft 1, friction pulley 2 is inputted, key 3 exports friction pulley 4, output shaft 5
Constitute.The input shaft 1 is provided with keyway, for coordinating with key 3.The input friction pulley 2 is engaged by key 3 with input shaft 1,
Input friction pulley 2 is in axial sliding relative to input shaft 1.The output friction pulley 4 is truncated conical shape, itself and input
Friction pulley 2 is engaged, and passes through frictional drive.Output friction pulley 4 and the output shaft 5 are connected, and the other end of output shaft 5 is connected spiral shell
Silk cutter head (not pointed out in figure).The right-hand member of input shaft 1 is connected to motor, to prevent stand under load is excessive from causing motor to stall, and should make input
Axle 1 the torque capacity loaded that can be provided less than motor.Because input friction pulley 2 can be slided relative to input shaft 1, therefore just may be used
The transmission radius of output friction pulley 4 is adjusted by inputting the axial movement of friction pulley 2, so as to realize the tune to output torque
Section.Because the torque capacity that motor can be provided is more than, input shaft institute is loaded, then exportable max. output torque should be equal to two
The product of transmission radius of the maximal friction with output friction pulley 4 now between friction pulley, therefore max. output torque need to be only adjusted,
Make it equal to tighten the torque needed for screw, just can realize tightening to the screw of different torsion maximums.And work as
After screw is tightened, two friction pulleys skid automatically, to prevent screw because torsion is excessive and damages.
The course of work of the present utility model：Input friction pulley 2 is slided into specified location, regulation max. output torque makes it
Equal to the torque tightened needed for current screw, motor is opened, in the course of the work, with tightening for screw, output
The institute of axle 5 is loaded gradually to increase, when screw is tightened, and the institute of output shaft 5 is loaded to be equal to max. output torque, now two friction
Wheel is automatic to be skidded, and closes motor, and work is completed.
Claims (2)
1. a kind of electric screw driver of adjustable output torque, mainly by input shaft (1), inputs friction pulley (2), key (3), output
Friction pulley (4), output shaft (5) is constituted；The input shaft (1) is provided with keyway, for coordinating with key (3)；The input friction pulley
(2) it is engaged by key (3) with input shaft (1) so that input friction pulley (2) can be in axial sliding relative to input shaft (1).
2. a kind of electric screw driver of adjustable output torque according to claim 1, it is characterised in that：The output rubs
It is truncated conical shape to wipe wheel (4), and it is engaged with input friction pulley (2), passes through frictional drive；It is described output friction pulley (4) with
Output shaft (5) is connected, and output shaft (5) other end is connected driver bit, another termination motor of input shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720187188.4U CN206544133U (en) | 2017-02-28 | 2017-02-28 | A kind of electric screw driver of adjustable output torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720187188.4U CN206544133U (en) | 2017-02-28 | 2017-02-28 | A kind of electric screw driver of adjustable output torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206544133U true CN206544133U (en) | 2017-10-10 |
Family
ID=59995382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720187188.4U Expired - Fee Related CN206544133U (en) | 2017-02-28 | 2017-02-28 | A kind of electric screw driver of adjustable output torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206544133U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213655A (en) * | 2022-08-02 | 2022-10-21 | 华莱(常州)液压科技有限公司 | Assembling equipment for pressure measuring joint production |
-
2017
- 2017-02-28 CN CN201720187188.4U patent/CN206544133U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213655A (en) * | 2022-08-02 | 2022-10-21 | 华莱(常州)液压科技有限公司 | Assembling equipment for pressure measuring joint production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171010 Termination date: 20180228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |