CN201419373Y - Fixed torque screwing device - Google Patents
Fixed torque screwing device Download PDFInfo
- Publication number
- CN201419373Y CN201419373Y CN2009200136858U CN200920013685U CN201419373Y CN 201419373 Y CN201419373 Y CN 201419373Y CN 2009200136858 U CN2009200136858 U CN 2009200136858U CN 200920013685 U CN200920013685 U CN 200920013685U CN 201419373 Y CN201419373 Y CN 201419373Y
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- CN
- China
- Prior art keywords
- force meter
- friction
- round bar
- measuring device
- interchangeable
- 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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Abstract
The utility model relates to a fixed torque screwing device, which is a tool for screw tightening during airplane assembly and consists of a force measuring device round bar, a round pin, a force measuring device outer sleeve, a spring, a replaceable outer friction sleeve, an inner friction lever, a nut and a replaceable coupling box. The spring is installed in the hole of the round bar at the upper end of the force measuring device outer sleeve, the force measuring device round bar is installed in the hole of the round bar at the upper end of the force measuring device outer sleeve. The roundpin is installed on the round bar of the force measuring device. The replaceable friction sleeve is installed on the inner friction lever. The nut is installed on the inner friction lever. The replaceable coupling box is installed at the lower end of the inner friction lever and is fixed by a spigot in a matching way. The replaceable outer friction sleeve is installed in an inner hole at the lower end of the force measuring device outer sleeve. The utility model has the advantages that the inner conical hole machined at the lower end of the replaceable outer friction sleeve rubs with the conemachined at the lower end of the inner friction lever, different frictions are generated between the inner conical hole and the cone under the dual action of the pressure and the rotation of the airdrill or the bench drill during working, and different torques are determined when the round pin is at different reticules so as to realize the fixed torque screw assembly.
Description
Technical field:
The invention is aircraft when assembling, is used to be spirally connected tighten the instrument of usefulness.
Background technology:
On processing line, be used for tightening the instrument that is spirally connected and adopt electric twisting spanner or pneumatic impact wrench, still, these spanner cost height, the expense height, and the aircraft assembling is that single-piece is carried out, tighten by hand, moment of torsion is felt control, the required precision that very difficult assurance is tightened with the operator entirely.
Summary of the invention:
The purpose of the invention provides a kind of energy and decides the moment of torsion of deciding of moment of torsion and screw device; The purpose of the invention is to realize by following technical scheme: decide moment of torsion and screw device, it is characterized in that being made up of force meter round bar, round pin, force meter overcoat, spring, interchangeable external friction cover, interior friction lever, nut and interchangeable coupling box; The round pin groove is made in the set upper side outside force meter, place, limit at the round pin groove makes groove, the round bar hole is made in the set upper side outside force meter, make endoporus in force meter overcoat lower end, endoporus made by interchangeable external friction cover and the female cone hole is made in the lower end, the cone that matches in the female cone hole made from interchangeable external friction cover is made in interior friction lever lower end, and external screw thread is made in the upper end; Spring is contained in the round bar hole of the outer set upper side of force meter, the force meter round bar is contained in the round bar hole of the outer set upper side of force meter, round pin is contained on the force meter round bar, interchangeable external friction is sleeved on the interior friction lever, nut is contained on the interior friction lever, cooperate with square tenon on the friction lever lower end in interchangeable coupling box is contained in and fix, interchangeable external friction is sleeved in the endoporus of force meter overcoat lower end.
The cooperation that interchangeable external friction is sleeved in the endoporus of force meter overcoat lower end is an interference fit.
Interchangeable external friction cover is different coefficient of friction cooperations with interior friction lever.
The advantage of the invention: the cone friction that make female cone hole that make interchangeable external friction cover lower end and interior friction lever lower end, during work in the pressure of air drill or bench drill and the double action of rotation, make the different frictional force of generation between them, by the residing groove difference of round pin, decision moment of torsion difference, thus realize deciding the assembling of moment of torsion screw thread.
Description of drawings:
Fig. 1 decides moment of torsion to screw the device structural representation;
Fig. 2 is that A among Fig. 1 is to the view schematic diagram.
Among the figure: 1, force meter round bar 2, round pin 3, force meter overcoat 4, spring 5, interchangeable external friction cover 6, interior friction lever 7, nut 8, interchangeable coupling box
The specific embodiment:
Decide moment of torsion and screw device, it is characterized in that forming by force meter round bar, round pin, force meter overcoat, spring, interchangeable external friction cover, interior friction lever, nut and interchangeable coupling box; The round pin groove is made in the set upper side outside force meter, place, limit at the round pin groove makes groove, the round bar hole is made in the set upper side outside force meter, make endoporus in force meter overcoat lower end, endoporus made by interchangeable external friction cover and the female cone hole is made in the lower end, the cone that matches in the female cone hole made from interchangeable external friction cover is made in interior friction lever lower end, and external screw thread is made in the upper end; Spring is contained in the round bar hole of the outer set upper side of force meter, the force meter round bar is contained in the round bar hole of the outer set upper side of force meter, round pin is contained on the force meter round bar, interchangeable external friction is sleeved on the interior friction lever, nut is contained on the interior friction lever, cooperate with square tenon on the friction lever lower end in interchangeable coupling box is contained in and fix, interchangeable external friction is sleeved in the endoporus of force meter overcoat lower end.
The cooperation that interchangeable external friction is sleeved in the endoporus of force meter overcoat lower end is an interference fit.
Interchangeable external friction cover is different coefficient of friction cooperations with interior friction lever.
Nut can adopt double nut, the extension elongation of friction lever in can regulating, and make extension elongation reliable, stable.
Interior friction lever adopts 40Cr to quench, and abrasion resistance is stable.
Interchangeable external friction cover can be by multiple metal material or nonmetallic materials system, and the frictional force difference that produces between the different metal is changed the interchangeable external friction cover that different materials is made according to different matching requirements, produces different moments of torsion.
The different materials coefficient of friction:
Torque arithmetic: N=FV
N is coefficient of friction for deciding frictional force=K μ K for downforce μ for power F
V=speed=RS R is interchangeable external friction cover external diameter S angular speed
Ask moment of torsion according to the moment of torsion formula.
Claims (3)
1, decides moment of torsion and screw device, it is characterized in that forming by force meter round bar, round pin, force meter overcoat, spring, interchangeable external friction cover, interior friction lever, nut and interchangeable coupling box; The round pin groove is made in the set upper side outside force meter, place, limit at the round pin groove makes groove, the round bar hole is made in the set upper side outside force meter, make endoporus in force meter overcoat lower end, endoporus made by interchangeable external friction cover and the female cone hole is made in the lower end, the cone that matches in the female cone hole made from interchangeable external friction cover is made in interior friction lever lower end, and external screw thread is made in the upper end; Spring is contained in the round bar hole of the outer set upper side of force meter, the force meter round bar is contained in the round bar hole of the outer set upper side of force meter, round pin is contained on the force meter round bar, interchangeable external friction is sleeved on the interior friction lever, nut is contained on the interior friction lever, cooperate with square tenon on the friction lever lower end in interchangeable coupling box is contained in and fix, interchangeable external friction is sleeved in the endoporus of force meter overcoat lower end.
2, according to claim 1ly decide moment of torsion and screw device, it is characterized in that the cooperation that interchangeable external friction is sleeved in the endoporus of force meter overcoat lower end is an interference fit.
3, according to claim 1ly decide moment of torsion and screw device, it is characterized in that interchangeable external friction cover and interior friction lever are different coefficient of friction cooperations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200136858U CN201419373Y (en) | 2009-05-14 | 2009-05-14 | Fixed torque screwing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200136858U CN201419373Y (en) | 2009-05-14 | 2009-05-14 | Fixed torque screwing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201419373Y true CN201419373Y (en) | 2010-03-10 |
Family
ID=41806021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200136858U Expired - Fee Related CN201419373Y (en) | 2009-05-14 | 2009-05-14 | Fixed torque screwing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201419373Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017959A (en) * | 2012-11-23 | 2013-04-03 | 大连滨城活塞制造有限公司 | Torque rotating angle measurement device |
| CN109746856A (en) * | 2017-11-06 | 2019-05-14 | 北京安沃科技有限公司 | One kind is electronic to determine torsional impact spanner |
| US10780439B2 (en) | 2018-08-31 | 2020-09-22 | Industrial Technology Research Institute | Magnetic screwdriver device |
| US10961100B2 (en) | 2018-08-31 | 2021-03-30 | Industrial Technology Research Institute H | Magnetic screwdriver device |
-
2009
- 2009-05-14 CN CN2009200136858U patent/CN201419373Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017959A (en) * | 2012-11-23 | 2013-04-03 | 大连滨城活塞制造有限公司 | Torque rotating angle measurement device |
| CN109746856A (en) * | 2017-11-06 | 2019-05-14 | 北京安沃科技有限公司 | One kind is electronic to determine torsional impact spanner |
| US10780439B2 (en) | 2018-08-31 | 2020-09-22 | Industrial Technology Research Institute | Magnetic screwdriver device |
| US10961100B2 (en) | 2018-08-31 | 2021-03-30 | Industrial Technology Research Institute H | Magnetic screwdriver device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100310 Termination date: 20120514 |