CN108262710A - A kind of stepless torque changing electric wrench - Google Patents
A kind of stepless torque changing electric wrench Download PDFInfo
- Publication number
- CN108262710A CN108262710A CN201611272749.7A CN201611272749A CN108262710A CN 108262710 A CN108262710 A CN 108262710A CN 201611272749 A CN201611272749 A CN 201611272749A CN 108262710 A CN108262710 A CN 108262710A
- Authority
- CN
- China
- Prior art keywords
- disk
- double cone
- frictional disk
- transition
- cone transition
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses a kind of stepless torque changing electric wrenches, are formed including input shaft, bearing of input shaft, disk, double cone transition frictional disk mobile bar, double cone transition frictional disk, output disk, bearing, wrench adapter.Bearing of input shaft, disk are installed on input shaft successively；Disk outer end face offsets with double cone transition frictional disk circular conical surface；Double cone transition frictional disk mobile bar activity double cone transition frictional disk endoporus；Output disk, bearing assembly wrench connector, and output disk outer end face and another circular conical surface of double cone transition frictional disk offset successively.
Description
Technical field
The present invention relates to a kind of electric wrenches, are specifically exactly a kind of electric wrench of changeable level of torque.
Background technology
The electric wrench used at present generally determines square spanner, is particularly in process of production in repairing trades, often
It is difficult to dismantle due to corrosion to encounter some bolts, and first longer with common wrench plus lever, second efficiency is too low, labor intensity
It is very big, and torn open not open with general electric wrench.The present invention is exactly to develop a kind of extremely slow but very big torque spanner of rotating speed to back-out
Nut, then quickly opens rotatably nut, i.e., it is a kind of can variable speed and bending moment spanner.
Invention content
The technical problem to be solved in the present invention is to provide a kind of stepless torque changing electric wrenches.
To solve the above problems, the present invention adopts the following technical scheme that：
A kind of stepless torque changing electric wrench of the present invention, including input shaft, bearing of input shaft, disk, double cone transition friction
Disk mobile bar, double cone transition frictional disk, output disk, bearing, wrench adapter are formed.Bearing of input shaft, disk are installed successively
On input shaft；Disk outer end face offsets with double cone transition frictional disk circular conical surface；The activity of double cone transition frictional disk mobile bar is double
Conical transition frictional disk endoporus；Output disk, bearing assembly wrench connector, and output disk outer end face and double cone transition successively
Another circular conical surface of frictional disk offsets.
As preferred technical solution, the double cone transition frictional disk is installed on the shifting of double cone transition frictional disk to tilt
Among lever, double cone face offsets respectively with disk, output disk.
A kind of advantageous effect of stepless torque changing electric wrench of the present invention is：Reach that rotating speed is extremely slow and torque is very big electronic pulls
Hand, and spanner can quickly open rotatably nut again after nut is dismantled, to raise labour productivity and reduce labor intensity.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Specific embodiment
Refering to a kind of stepless torque changing electric wrench shown in FIG. 1, including the input shaft 1, bearing of input shaft 2, disk
3rd, double cone transition frictional disk mobile bar 4, double cone transition frictional disk 5, output disk 6, bearing 7, wrench adapter form 9.It is defeated
Enter axle bearing 2, disk 3 to install on input shaft 1 successively；3 outer end face of disk offsets with 5 circular conical surface of double cone transition frictional disk；It is double
Movable 5 endoporus of double cone transition frictional disk of conical transition frictional disk mobile bar 4；Assembly wrench connects successively for output disk 6, bearing 7
First 8, and 6 outer end face of output disk and another circular conical surface of double cone transition frictional disk 5 offset.
As preferred technical solution, the double cone transition frictional disk 5 is installed on double cone transition frictional disk to tilt
Among mobile bar 4, double cone face offsets respectively with disk 3, output disk 6.
Its course of work：Input shaft 1 rotates after connecing motor, and disk 3 and double cone transition frictional disk 5 are driven by bearing 2
It is in close contact, double cone transition frictional disk 5 is driven to rotate using frictional force therebetween, because of double cone transition frictional disk 5 and output
Disk 6 is in close contact, and frictional force therebetween drives output disk 6 to rotate again, and output disk 6 is connected with wrench adapter 8 by bearing 7
An entirety is connected in, therefore wrench adapter 8 is rotated with output disk 6, nut is turned round in wrench adapter 8 and dismantles nut, because of n2/
N1=h1/h2, when double cone transition frictional disk mobile bar 4 moves double cone transition frictional disk 5 by axial ray A and far from axis B
When, rotating speed becomes smaller at wrench adapter 8, and torque becomes larger, and on the contrary then rotating speed becomes large torque and becomes smaller.Because double cone transition frictional disk moves
The disengaging movement of bar 4 is stepless, therefore it is also stepless that the rotating speed of wrench adapter 8, which changes, because torque is proportional with rotating speed,
So the torque of wrench adapter 8 realizes stepless torque changing.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention.Therefore, it is of the invention
Protection domain should be determined by the scope of protection defined in the claims.
Claims (2)
1. a kind of stepless torque changing electric wrench, it is characterised in that：Including the input shaft 1, bearing of input shaft 2, disk 3, double
Conical transition frictional disk mobile bar 4, double cone transition frictional disk 5, output disk 6, bearing 7, wrench adapter form 9.Input shaft
Bearing 2, disk 3 are installed on input shaft 1 successively；3 outer end face of disk offsets with 5 circular conical surface of double cone transition frictional disk；Double cone
Movable 5 endoporus of double cone transition frictional disk of transition frictional disk mobile bar 4；Output disk 6, bearing 7 assembly wrench connector 8 successively,
And 6 outer end face of output disk and another circular conical surface of double cone transition frictional disk 5 offset.
2. a kind of stepless torque changing electric wrench according to claim 1, it is characterised in that：The double cone transition frictional disk
5 are installed on to tilt among double cone transition frictional disk mobile bar 4, and double cone face offsets respectively with disk 3, output disk 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611272749.7A CN108262710A (en) | 2016-12-31 | 2016-12-31 | A kind of stepless torque changing electric wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611272749.7A CN108262710A (en) | 2016-12-31 | 2016-12-31 | A kind of stepless torque changing electric wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108262710A true CN108262710A (en) | 2018-07-10 |
Family
ID=62770605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611272749.7A Pending CN108262710A (en) | 2016-12-31 | 2016-12-31 | A kind of stepless torque changing electric wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108262710A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3464281A (en) * | 1965-10-27 | 1969-09-02 | Hiroshi Azuma | Friction-type automatic variable speed means |
| CH487357A (en) * | 1968-06-21 | 1970-03-15 | Steinfels Helmut | Infinitely variable friction gear |
| DE1750974A1 (en) * | 1967-06-22 | 1971-04-29 | H L F Engineering Developments | Friction gear |
| CN2267355Y (en) * | 1996-09-03 | 1997-11-12 | 杨天博 | Ultra short type stepless speed regulation speed reducer |
| DE202007009350U1 (en) * | 2007-07-04 | 2007-09-20 | Rausch, Andreas | transmission |
| CN203449227U (en) * | 2013-09-10 | 2014-02-26 | 宁波中旺工具有限公司 | Variable-torque electric screw driver |
| CN103644271A (en) * | 2013-11-25 | 2014-03-19 | 重庆市璧山爱华有限责任公司 | Friction circular plate type gear shifting mechanism |
-
2016
- 2016-12-31 CN CN201611272749.7A patent/CN108262710A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3464281A (en) * | 1965-10-27 | 1969-09-02 | Hiroshi Azuma | Friction-type automatic variable speed means |
| DE1750974A1 (en) * | 1967-06-22 | 1971-04-29 | H L F Engineering Developments | Friction gear |
| CH487357A (en) * | 1968-06-21 | 1970-03-15 | Steinfels Helmut | Infinitely variable friction gear |
| CN2267355Y (en) * | 1996-09-03 | 1997-11-12 | 杨天博 | Ultra short type stepless speed regulation speed reducer |
| DE202007009350U1 (en) * | 2007-07-04 | 2007-09-20 | Rausch, Andreas | transmission |
| CN203449227U (en) * | 2013-09-10 | 2014-02-26 | 宁波中旺工具有限公司 | Variable-torque electric screw driver |
| CN103644271A (en) * | 2013-11-25 | 2014-03-19 | 重庆市璧山爱华有限责任公司 | Friction circular plate type gear shifting mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180710 |
|
| WD01 | Invention patent application deemed withdrawn after publication |