CN108608358A - A kind of screwdriver by magnetic force adjustment torque - Google Patents
A kind of screwdriver by magnetic force adjustment torque Download PDFInfo
- Publication number
- CN108608358A CN108608358A CN201810178324.2A CN201810178324A CN108608358A CN 108608358 A CN108608358 A CN 108608358A CN 201810178324 A CN201810178324 A CN 201810178324A CN 108608358 A CN108608358 A CN 108608358A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- knife bar
- tube
- conductive tube
- magnetic force
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- 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
- B25B15/00—Screwdrivers
- B25B15/02—Screwdrivers operated by rotating the handle
-
- 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
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The present invention relates to a kind of screwdriver adjusting torque by magnetic force, including knife bar, be arranged knife rod head driver bit, be sequentially sleeved at the magnetic conductive tube and magnetic tube of knife bar tail portion from inside to outside；It is provided with multiple magnetic rings that can be rotated in magnetic conductive tube on the knife bar in the axial direction, pressure bearing is also arranged with respectively at the both ends of magnetic conductive tube on the knife bar；At least provided with two through-holes in the magnetic tube, it is provided with multigroup threaded hole corresponding with two through-holes in the axial direction on the magnetic conductive tube；It is respectively arranged with the adjusting bolt being connect with threaded hole in two through-holes；The magnetic tube and magnetic rings are made of ferromagnetic material, and magnetic direction is identical radially distributed；Magnetic force size can be changed by adjusting the length of magnetic conductive tube and magnetic tube lap in the present invention, due to being magnetic force adjustment is not rigid adjustment so as to adjust the size of torque, so not having abrasion, can greatly improve service life, ensures to install or assembling quality.
Description
Technical field
The present invention relates to extracting tool fields, refer in particular to a kind of screwdriver by magnetic force adjustment torque.
Background technology
Screwdriver is a kind of tool of common fastening screw；When traditional screwdriver fastening screw, the torque of application and
Tightness is controlled with the feeling of people, and often screw, screwdriver damage caused by the torque of application is excessive can also influence part
Installation or assembling quality even can destroy part；Also occur various adjustable torque screwdrivers currently on the market, such as existing skill
A kind of screwdriver of mechanical adjustable torque is disclosed in art 201120006581.1, is adjusted by the reduction length of adjustment spring
Frictional force of the bottom ratchet wheel between the thrust and upper and lower ratchet of upper ratchet is saved, to achieve the purpose that adjust torque, when setting
In the case of setting torque, when the torque of application is more than the value of setting, bottom ratchet wheel skids automatically on screwdriver, although can protect
Screwdriver and screw are against damages, it can also be ensured that screw tightness degree is consistent, but since upper bottom ratchet wheel wears ratio when skidding
It is more serious, cause service life to be greatly reduced, and usage time is longer, the ratchet of upper bottom ratchet wheel just wears smaller so as to turn round
Square value is less than the value of setting, influences installation or assembling quality.
Invention content
A kind of screwdriver by magnetic force adjustment torque is provided the invention aims to overcome the deficiencies in the prior art, is led to
Adjustment magnetic force size is crossed to adjust the size of torque, is not rigid adjustment, so not having abrasion, energy due to being magnetic force adjustment
Service life is greatly improved, ensures installation or assembling quality.
In order to achieve the above objectives, the technical solution adopted by the present invention is：A kind of screwdriver by magnetic force adjustment torque, including
Knife bar, be arranged knife rod head driver bit, be sequentially sleeved at the magnetic conductive tube and magnetic tube of knife bar tail portion from inside to outside；It is described
Multiple uniform placements and the magnetic rings that can be rotated in magnetic conductive tube are provided on knife bar in the axial direction, in magnetic conduction on the knife bar
The both ends of pipe are also arranged with pressure bearing respectively；It is along the circumferential direction uniformly placed at least provided with two in the magnetic tube logical
Hole is provided with multigroup uniform placement and threaded hole corresponding with two through-holes on the magnetic conductive tube in the axial direction；Described in two
The adjusting bolt that can be connect with any group of threaded hole is respectively arranged in through-hole；The magnetic tube and magnetic rings are by strong magnetic material
Material is made, and magnetic direction is identical radially distributed.
Preferably, the surface of the knife bar is provided with torque scale in the axial direction.
Preferably, the head of the knife bar is provided with the tool tip of replaceable different driver bits.
Preferably, multiple magnetic rings are bonded in by seccotine on knife bar.
Preferably, the tail portion of the knife bar is also arranged with the rubber sleeve that section takes the shape of the letter U in magnetic tube.
Preferably, the open end of the rubber sleeve is provided with the conical surface of magnetropism pipe surface transition.
Preferably, the surface of the magnetic tube is provided with annular knurl.
Preferably, the pressure bearing of the magnetic conductive tube outer end is fixed on knife bar by the end face of magnetic conductive tube and the shaft shoulder of knife bar
On, and the pressure bearing of magnetic conductive tube inner end is fixed on by block on knife bar.
Preferably, the pressure bearing is thrust ball bearing or thrust roller bearing.
Preferably, the magnetic conductive tube is made of non magnetic wear-resistant material.
Due to the application of the above technical scheme, the present invention has following advantages compared with prior art：
It is of the present invention to lean on the screwdriver of magnetic force adjustment torque since knife bar is provided on magnetic conductive tube, by adjusting
Magnetic force size can be changed, so as to adjust the size of torque, due to being magnetic force tune in the length of magnetic conductive tube and magnetic tube lap
It is whole, it is not rigid adjustment, so not having abrasion, service life can be greatly improved, ensure installation or assembling quality.
Description of the drawings
Technical scheme of the present invention is further explained below in conjunction with the accompanying drawings：
Attached drawing 1 is the structural schematic diagram of the screwdriver of the present invention that torque is adjusted by magnetic force.
Wherein：1, rubber sleeve；2, block；3, magnetic rings；4, threaded hole；5, adjusting bolt；6, magnetic conductive tube；7, magnetic tube；
8, pressure bearing；9, knife bar；10, tool tip；11, driver bit.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is described in further details.
Attached drawing 1 be it is of the present invention the screwdriver of torque is adjusted by magnetic force, including knife bar 9, being arranged on 9 head of knife bar
Driver bit 11, the magnetic conductive tube 6 and magnetic tube 7 for being sequentially sleeved at 9 tail portion of knife bar from inside to outside；9 upper edge axis side of the knife bar
To being provided with multiple uniform placements and the magnetic rings 3 that can be rotated in magnetic conductive tube 6, on the knife bar 9 the both ends of magnetic conductive tube 6 also
It is arranged with pressure bearing 8 respectively；The through-hole along the circumferential direction uniformly placed at least provided with two in the magnetic tube 7, it is described
Multigroup uniform placement and threaded hole corresponding with two through-holes 4 are provided on magnetic conductive tube 6 in the axial direction；In two through-holes
It is respectively arranged with the adjusting bolt 5 that can be connect with any group of threaded hole 4；The magnetic tube 7 and magnetic rings 3 are by ferromagnetic material
It is made, and magnetic direction is identical radially distributed, in use, magnetic conductive tube 6 and 7 weight of magnetic tube can be adjusted by adjusting bolt 5
The length of folded part, changes magnetic force size, to set torque value, when the magnetic force that magnetic tube 7 and magnetic rings 3 generate is less than screw
When bringing the torque of knife bar 9, then magnetic conductive tube 6 will produce relative rotation relative to magnetic tube 7, and the torque that human hand applies will not pass
It passs on knife bar 9, knife bar 9 can not be made to rotate, so as to protect the part of driver bit and installation.
Further, the surface of the knife bar 9 is provided with torque scale in the axial direction, is turned round according to torque scale convenient for adjusting
Square size, it is more convenient.
Further, the head of the knife bar 9 is provided with the tool tip 10 of replaceable different driver bits 11, is easily installed not
Same driver bit 11, purposes is wider.
Further, multiple magnetic rings 3 are bonded in by seccotine on knife bar 9, and not only manufacture is easy, and convenient for peace
Dress, avoid because the suction between magnetic rings 3 and knife bar 9 is excessive cause it is difficult to install.
Further, the tail portion of the knife bar 9 is also arranged with the rubber sleeve 1 that section takes the shape of the letter U in magnetic tube 7, and human hand is made to use
Power is convenient, plays the role of anti-skidding.
Further, the open end of the rubber sleeve 1 is provided with the conical surface of 7 surface transition of magnetropism pipe, avoid it is stepped,
So that being not easy stress at rubber sleeve 1 and the ladder of magnetic tube 7.
Further, the surface of the magnetic tube 7 is provided with annular knurl, also functions to anti-skidding effect.
Further, the pressure bearing 8 of 6 outer end of the magnetic conductive tube is fixed on by the end face of magnetic conductive tube 6 and the shaft shoulder of knife bar 9
On knife bar 9, and the pressure bearing 8 of 6 inner end of magnetic conductive tube is fixed on by block 2 on knife bar 9, convenient for assembling, and axial carrying energy
Power is big.
Further, the pressure bearing 8 be thrust ball bearing or thrust roller bearing, it is cheap, using wide.
Further, the magnetic conductive tube 6 is made of non magnetic wear-resistant material, and the knife bar 9 for being equipped with magnetic rings 3 is made to be easy to be inserted into
In magnetic conductive tube 6.
Due to the application of the above technical scheme, the present invention has following advantages compared with prior art：
It is of the present invention to lean on the screwdriver of magnetic force adjustment torque since knife bar is provided on magnetic conductive tube, by adjusting
Magnetic force size can be changed, so as to adjust the size of torque, due to being magnetic force tune in the length of magnetic conductive tube and magnetic tube lap
It is whole, it is not rigid adjustment, so not having abrasion, service life can be greatly improved, ensure installation or assembling quality.
The specific application example that the above is only the present invention, is not limited in any way protection scope of the present invention.All uses
Equivalent transformation or equivalent replacement and the technical solution formed, all fall within rights protection scope of the present invention.
Claims (10)
1. a kind of screwdriver by magnetic force adjustment torque, it is characterised in that：Including knife bar, screwdriver in knife rod head is arranged
Head, the magnetic conductive tube and magnetic tube for being sequentially sleeved at knife bar tail portion from inside to outside；It is provided in the axial direction on the knife bar multiple
It uniformly places and the magnetic rings that can be rotated in magnetic conductive tube, pressure axis is also arranged with respectively at the both ends of magnetic conductive tube on the knife bar
It holds；The through-hole along the circumferential direction uniformly placed at least provided with two in the magnetic tube, on the magnetic conductive tube in the axial direction
It is provided with multigroup uniform placement and threaded hole corresponding with two through-holes；Being respectively arranged in two through-holes can be with any one
The adjusting bolt of group threaded hole connection；The magnetic tube and magnetic rings are made of ferromagnetic material, and the identical equal edge of magnetic direction
Radial distribution.
2. the screwdriver according to claim 1 by magnetic force adjustment torque, it is characterised in that：The surface of the knife bar is along axis
Line direction is provided with torque scale.
3. the screwdriver according to claim 2 by magnetic force adjustment torque, it is characterised in that：The head of the knife bar is arranged
There is the tool tip of replaceable different driver bits.
4. the screwdriver according to claim 1 or 2 or 3 by magnetic force adjustment torque, it is characterised in that：Multiple magnetism
Ring is bonded in by seccotine on knife bar.
5. the screwdriver according to claim 4 by magnetic force adjustment torque, it is characterised in that：The tail portion of the knife bar is in magnetic
It is also arranged with the rubber sleeve that section takes the shape of the letter U on property pipe.
6. the screwdriver according to claim 5 by magnetic force adjustment torque, it is characterised in that：The open end of the rubber sleeve
It is provided with the conical surface of magnetropism pipe surface transition.
7. the screwdriver according to claim 6 by magnetic force adjustment torque, it is characterised in that：The surface of the magnetic tube is set
It is equipped with annular knurl.
8. the screwdriver according to claim 7 by magnetic force adjustment torque, it is characterised in that：The pressure of the magnetic conductive tube outer end
Power bearing is fixed on by the end face of magnetic conductive tube and the shaft shoulder of knife bar on knife bar, and the pressure bearing of magnetic conductive tube inner end passes through block
It is fixed on knife bar.
9. the screwdriver according to claim 8 by magnetic force adjustment torque, it is characterised in that：The pressure bearing is thrust
Ball bearing or thrust roller bearing.
10. the screwdriver according to claim 9 by magnetic force adjustment torque, it is characterised in that：The magnetic conductive tube is by non-magnetic
Property wear-resistant material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810178324.2A CN108608358A (en) | 2018-03-05 | 2018-03-05 | A kind of screwdriver by magnetic force adjustment torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810178324.2A CN108608358A (en) | 2018-03-05 | 2018-03-05 | A kind of screwdriver by magnetic force adjustment torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108608358A true CN108608358A (en) | 2018-10-02 |
Family
ID=63658421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810178324.2A Pending CN108608358A (en) | 2018-03-05 | 2018-03-05 | A kind of screwdriver by magnetic force adjustment torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108608358A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI789487B (en) * | 2018-08-31 | 2023-01-11 | 財團法人工業技術研究院 | Magnetic driver device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW332794B (en) * | 1997-06-11 | 1998-06-01 | Ching-Long Wu | Method and apparatus of magnetic variable torque screwdriver |
| CN2323923Y (en) * | 1998-05-14 | 1999-06-16 | 吴庆隆 | Magnetic screwdriver with adjustable torque force |
| TW372907B (en) * | 1998-12-15 | 1999-11-01 | Qing-Long Wu | Supplement to method and apparatus for manufacturing magnetic adjustable torque screwdriver |
| JP2002205282A (en) * | 2000-12-28 | 2002-07-23 | Nippon Densan Corp | Torque driver |
| DE20314486U1 (en) * | 2003-09-17 | 2004-10-21 | Felo-Werkzeugfabrik Holland-Letz Gmbh | Screw driver with torque restrictor includes magnetic coupling with inner and outer bodies joined in one piece of magnetic material and with permanent magnets oppositely pole with inner body moved steplessly by adjuster |
| CN105437125A (en) * | 2014-09-30 | 2016-03-30 | 富泰华工业（深圳）有限公司 | Torsion-adjustable screw driver |
| CN207930570U (en) * | 2018-03-05 | 2018-10-02 | 苏州市职业大学（苏州开放大学） | A kind of screwdriver by magnetic force adjustment torque |
-
2018
- 2018-03-05 CN CN201810178324.2A patent/CN108608358A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW332794B (en) * | 1997-06-11 | 1998-06-01 | Ching-Long Wu | Method and apparatus of magnetic variable torque screwdriver |
| CN2323923Y (en) * | 1998-05-14 | 1999-06-16 | 吴庆隆 | Magnetic screwdriver with adjustable torque force |
| TW372907B (en) * | 1998-12-15 | 1999-11-01 | Qing-Long Wu | Supplement to method and apparatus for manufacturing magnetic adjustable torque screwdriver |
| JP2002205282A (en) * | 2000-12-28 | 2002-07-23 | Nippon Densan Corp | Torque driver |
| DE20314486U1 (en) * | 2003-09-17 | 2004-10-21 | Felo-Werkzeugfabrik Holland-Letz Gmbh | Screw driver with torque restrictor includes magnetic coupling with inner and outer bodies joined in one piece of magnetic material and with permanent magnets oppositely pole with inner body moved steplessly by adjuster |
| CN105437125A (en) * | 2014-09-30 | 2016-03-30 | 富泰华工业（深圳）有限公司 | Torsion-adjustable screw driver |
| CN207930570U (en) * | 2018-03-05 | 2018-10-02 | 苏州市职业大学（苏州开放大学） | A kind of screwdriver by magnetic force adjustment torque |
Non-Patent Citations (1)
| Title |
|---|
| 周百令: "《动力调谐陀螺仪设计与制造》", 东南大学出版社, pages: 143 - 144 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI789487B (en) * | 2018-08-31 | 2023-01-11 | 財團法人工業技術研究院 | Magnetic driver device |
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