CN102765073A - Torque output mechanism of electric spanner with fixed torque - Google Patents
Torque output mechanism of electric spanner with fixed torque Download PDFInfo
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- CN102765073A CN102765073A CN2012102617420A CN201210261742A CN102765073A CN 102765073 A CN102765073 A CN 102765073A CN 2012102617420 A CN2012102617420 A CN 2012102617420A CN 201210261742 A CN201210261742 A CN 201210261742A CN 102765073 A CN102765073 A CN 102765073A
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- force arm
- speed change
- torque
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Abstract
The invention discloses a torque output mechanism of an electric spanner with fixed torque. Through the technical scheme of the invention, the torque output mechanism comprises a reverse force arm and a sleeve, wherein the reverse force arm is butted joint with a speed change mechanism through a clamping groove; one end of the sleeve is also butted joint with a planet carrier of the speed change mechanism through the clamping groove; a bearing is fixed between the reverse form arm and the sleeve; and a guide sleeve having slide fit with the sleeve is fixed on the reverse force arm. The torque output mechanism has the following beneficial effects: a connection mode between the torque output mechanism and the speed change mechanism is changed, the parts such as an output shaft, a front cover and the like are removed, and the composition of the mechanism is simplified; the improved output mechanism as a whole body is integrally butted joint with the speed change mechanism, so that the process is simplified, the working efficiency is improved and the labor intensity of workers is reduced; because the output shaft is removed, the power of the speed change mechanism and the sleeve can be directly transferred, so that the axial distance is shortened, the power transfer efficiency is improved, the structural weight is reduced, and the material consumption is reduced; and the torque output mechanism has the advantages of low cost and convenience in use.
Description
Technical field
The present invention relates to the electric tool technical field, especially relate to a kind of moment of torsion output mechanism of electric constant torque wrench.
Background technology
Electric constant torque wrench belongs to the electromechanical integration instrument, is mainly used in the Steel Structure Installation industry, is used for the fixing of high-strength bolt; Want just tight earlier back tight eventually to bolt during installation; All there is strict torque demand in per step, and its primary structure comprises motor part, electronic control part, gear, moment of torsion output mechanism four parts, through motor electric energy is converted into mechanical energy; Give bolt torque transfer through gear and moment of torsion output mechanism again, electronic control part is realized the adjusting of torque.
The implementation of moment of torsion output mechanism is in the conventional art: this moment of torsion output mechanism comprises output shaft, copper sheathing, protecgulum, output axle pad, sleeve, the reaction arm of force, bearing and bearing pin, docks through the draw-in groove structure between protecgulum and the gear, and output shaft also docks through the draw-in groove structure with the gear planet carrier; Bearing is between protecgulum and output shaft, and copper sheathing is fixed on the protecgulum, and is slidingly matched with output shaft; During use with jacket casing on the output shaft four directions; Fix through bearing pin, put O type circle and prevent that bearing pin from deviating from, in the reaction arm of force on six sides and the protecgulum outward six sides dock; And fix with 2 SOC.HD. cap screws; Thereby output shaft at first rotates in the realization output mechanism, and output shaft drives the sleeve rotation, reaches the purpose that tights a bolt.There is following shortcoming in this output mechanism: 1) moment of torsion transmits through output shaft and sleeve successively; Assemble by manual work during use; Its axial distance is long, volume is big, transmitted power efficient is low, in narrow space, can't use, because electric constant torque wrench mainly is used in the Steel Structure Installation industry of bridge construction, work high above the ground; Excessive volume is dangerous high, is unfavorable for the realization of keeping the safety in production.2) do not support between the sleeve and the reaction arm of force, influence the precision of moment of torsion output during work, be prone to cause bolt torque to transmit distortion, influence construction quality.
Summary of the invention
The objective of the invention is to improve the shortcoming that exists in the prior art; The moment of torsion output mechanism of the electric constant torque wrench that a kind of volume is little, simple in structure, the moment of torsion transmitting accuracy is high is provided; It has changed the structure of traditional moment of torsion output mechanism, has effectively reduced the volume of this part in the electric wrench, has reached the purpose of applications well; The technical scheme that adopts is: a kind of moment of torsion output mechanism of electric constant torque wrench; Comprise counter-force arm and sleeve, it is characterized in that: said counter-force arm is docked through draw-in groove with gear, and sleeve one end also docks with the gear planet carrier through draw-in groove; Bearing fixing is between said counter-force arm and sleeve, and the fairlead that is slidingly matched with sleeve is fixed on the counter-force arm.
Technical characterictic of the present invention also has: on the end outer surface of said counter-force arm away from gear, have water jacket; Said sleeve is away from having inside groove with said water jacket corresponding position on the end inner surface of gear planet carrier, in the draw-in groove of being made up of said water jacket and inside groove the porose back-up ring of using is installed.
Technical characterictic of the present invention also has: also be processed with the interior bayonet socket that matches with the bolt outer surface on the end inner surface of said sleeve away from the gear planet carrier.
Beneficial effect of the present invention is: 1) this moment of torsion output mechanism realized and gear between the change of connected mode, through this kind variation, saved output shaft and protecgulum etc., simplified the composition of mechanism.
2) output mechanism in the traditional structure has only protecgulum to be connected with gear; Remainder the time just connects carrying out the accessory construction, and the output mechanism after the improvement is made as a whole and gear and realized that integral body docks, and has simplified operation; Improve work efficiency, alleviated labor strength.
3) mechanism after the improvement has removed output shaft, has realized the direct transmission of gear and sleeve power, thereby has shortened axial distance; Improve power transmission efficiency, alleviated construction weight, reduced material consumption; Has advantage with low cost, easy-to-use.
Description of drawings
Accompanying drawing 1 is a moment of torsion output mechanism structural representation in the prior art, and accompanying drawing 2 is structural representations of the present invention, and accompanying drawing 3 is sleeve front views, and accompanying drawing 4 is sleeve left views, and accompanying drawing 5 is counter-force arm front views; Accompanying drawing 6 is counter-force arm left views, wherein, the 1st, sleeve, the 2nd, counter-force arm, the 3rd, bearing; The 4th, fairlead, the 5th, back-up ring is used in the hole, and the 6th, draw-in groove, the 7th, interior bayonet socket; 1 ˊ is an output shaft, and 2 ˊ are copper sheathings, and 3 ˊ are protecgulums, and 4 ˊ are output shaft plain cushions; 5 ˊ are sleeves, and 6 ˊ are reaction arm of forces, and 7 ˊ are bearings, and 8 ˊ are bearing pins.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is specified.The structure of electric constant torque wrench output mechanism is shown in accompanying drawing 1 in the conventional art, and output shaft 1 ˊ docks through draw-in groove with the gear planet carrier, protecgulum 3 ˊ
Also be through docking between draw-in groove structure and the gear, between protecgulum 3 ˊ and output shaft 1 ˊ, bearing 7 ˊ are housed, copper sheathing 2 ˊ are fixed on protecgulum 3 ˊ, and are slidingly matched with output shaft 1 ˊ, between copper sheathing 2 ˊ and output shaft 1 ˊ output shaft plain cushion 4 ˊ are installed.During use sleeve 5 ˊ are enclosed within on the four directions of output shaft 1 ˊ; 8 ˊ fix through bearing pin, and put O type circle and prevent that bearing pin 8 ˊ from deviating from, in the reaction arm of force 6 ˊ on six sides and protecgulum 3 ˊ outward six sides docks; And fix with 2 SOC.HD. cap screws; Thereby realize after the gear speed change, at first realizing the rotation of output shaft 1 ˊ, output shaft 1 ˊ drives sleeve 5 ˊ rotation, reaches the purpose that tights a bolt.
Moment of torsion output mechanism among the present invention comprises counter-force arm 2 and sleeve 1; Counter-force arm 2 is docked through draw-in groove with gear; Sleeve 1 one ends also dock with the gear planet carrier through draw-in groove; Bearing 3 is fixed between counter-force arm 2 and the sleeve 1, and the fairlead 4 that is slidingly matched with sleeve 1 is fixed on the counter-force arm 2.On the end outer surface of counter-force arm 2, have water jacket away from gear; On the sleeve 1 away from having inside groove with the water jacket corresponding position of counter-force arm 2 on the end inner surface of gear planet carrier; Install in the draw-in groove of forming by water jacket and inside groove 6 porose with back-up ring 5, to prevent deviating from of sleeve 1.On the end inner surface of sleeve 1, also be processed with and wait to twist and decide the interior bayonet socket 7 that the bolt outer surface matches away from the gear planet carrier.Drive lower sleeve 1 at gear during work and rotate, the rotation of sleeve 1 drives the nut rotation, thereby realizes tightening of bolt.The present invention has realized the improvement of electric wrench output mechanism, has removed the structures such as output shaft in the original traditional mechanism, has realized the shortening of axial distance; With the used electric wrench of M30 bolt is example, improves its axial distance of back and has shortened 60mm, and moment of torsion is directly delivered on the sleeve 1; Output mechanism weight saving 1.5kg; Thereby reduced the volume of electric wrench, alleviated spanner weight, reduced operator's labour intensity.
Certainly, above-mentioned explanation is not a limitation of the present invention, and the present invention also is not limited only to above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present invention also belong to protection scope of the present invention.
Claims (3)
1. the moment of torsion output mechanism of an electric constant torque wrench; Comprise counter-force arm and sleeve; It is characterized in that: said counter-force arm is docked through draw-in groove with gear; Sleeve one end also docks with the gear planet carrier through draw-in groove, and bearing fixing is between said counter-force arm and sleeve, and the fairlead that is slidingly matched with sleeve is fixed on the counter-force arm.
2. according to the moment of torsion output mechanism of the described electric constant torque wrench of claim 1; It is characterized in that: on the end outer surface of said counter-force arm, have water jacket away from gear; Said sleeve is away from having inside groove with said water jacket corresponding position on the end inner surface of gear planet carrier, in the draw-in groove of being made up of said water jacket and inside groove the porose back-up ring of using is installed.
3. according to the moment of torsion output mechanism of the described electric constant torque wrench of claim 2, it is characterized in that: also be processed with the interior bayonet socket that matches with the bolt outer surface on the end inner surface of said sleeve away from the gear planet carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102617420A CN102765073A (en) | 2012-07-27 | 2012-07-27 | Torque output mechanism of electric spanner with fixed torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102617420A CN102765073A (en) | 2012-07-27 | 2012-07-27 | Torque output mechanism of electric spanner with fixed torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102765073A true CN102765073A (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102617420A Pending CN102765073A (en) | 2012-07-27 | 2012-07-27 | Torque output mechanism of electric spanner with fixed torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102765073A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105328650A (en) * | 2015-11-24 | 2016-02-17 | 同济大学 | Electric mounting tool for split nested one-sided bolt fastener |
| CN115268562A (en) * | 2022-06-22 | 2022-11-01 | 贵州电网有限责任公司 | Quick adjusting device for protection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107982U (en) * | 1991-12-07 | 1992-06-24 | 西南交通大学 | Variable speed wrench |
| CN2255335Y (en) * | 1996-07-29 | 1997-06-04 | 倪孔森 | Effort-saving assembling-disassembling wrench |
| JP3639334B2 (en) * | 1994-12-21 | 2005-04-20 | 株式会社東日製作所 | Torque wrench with torque attachment |
| CN2765730Y (en) * | 2005-01-07 | 2006-03-22 | 彭树庆 | Double-speed torque-initialized adjustable torque gaining device |
| CN202684814U (en) * | 2012-07-27 | 2013-01-23 | 山东中兴电动工具有限公司 | Torque output mechanism for constant torque electric wrench |
-
2012
- 2012-07-27 CN CN2012102617420A patent/CN102765073A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107982U (en) * | 1991-12-07 | 1992-06-24 | 西南交通大学 | Variable speed wrench |
| JP3639334B2 (en) * | 1994-12-21 | 2005-04-20 | 株式会社東日製作所 | Torque wrench with torque attachment |
| CN2255335Y (en) * | 1996-07-29 | 1997-06-04 | 倪孔森 | Effort-saving assembling-disassembling wrench |
| CN2765730Y (en) * | 2005-01-07 | 2006-03-22 | 彭树庆 | Double-speed torque-initialized adjustable torque gaining device |
| CN202684814U (en) * | 2012-07-27 | 2013-01-23 | 山东中兴电动工具有限公司 | Torque output mechanism for constant torque electric wrench |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105328650A (en) * | 2015-11-24 | 2016-02-17 | 同济大学 | Electric mounting tool for split nested one-sided bolt fastener |
| CN105328650B (en) * | 2015-11-24 | 2017-07-11 | 同济大学 | A kind of electronic installation tool of split Nested-type single-side bolt fastener |
| CN115268562A (en) * | 2022-06-22 | 2022-11-01 | 贵州电网有限责任公司 | Quick adjusting device for protection device |
| CN115268562B (en) * | 2022-06-22 | 2024-03-22 | 贵州电网有限责任公司 | Quick adjusting device for protection device |
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Application publication date: 20121107 |