CN104827432A - Torque force fixing apparatus for pneumatic wrench in electricity industry - Google Patents
Torque force fixing apparatus for pneumatic wrench in electricity industry Download PDFInfo
- Publication number
- CN104827432A CN104827432A CN201510190879.5A CN201510190879A CN104827432A CN 104827432 A CN104827432 A CN 104827432A CN 201510190879 A CN201510190879 A CN 201510190879A CN 104827432 A CN104827432 A CN 104827432A
- Authority
- CN
- China
- Prior art keywords
- spring sheet
- cylindrical shell
- moment
- torsion
- spring leaf
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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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/145—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for fluid operated wrenches or screwdrivers
- B25B23/1453—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for fluid operated wrenches or screwdrivers for impact wrenches or screwdrivers
-
- 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
- B25B23/145—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for fluid 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 invention relates to a torque force fixing apparatus for a pneumatic wrench in the electricity industry. The apparatus comprises a cylindrical shell with one end sealed and the other end opened, a central shaft, a support body installed at the opening end of the cylinder body by a locking screw, an inner spring sheet and an outer spring sheet. The inner spring sheet is installed inside the cylindrical shell and approaches the sealed end. The outer spring sheet is installed inside the cylinder body and approaches the support body. When a bolt is installed, according to the regulated moment, the dimensions and the number of the inner spring sheet and the outer spring sheet are adjusted, so that a required moment is set and the adjustment can be carried out conveniently and simply. And when moments of a tightened nut and bolt reach the needed one, an equal reactive moment is exerted on the cylinder body and the spring sheets enter an elastic deformation stage at the moment. Because of the elastic deformation, the spring sheets slide out from ratchet grooves inside the cylinder body and are rotated relatively to the cylinder body so that the cylinder body stops the selection and thus no force is exerted on the tightened nut and bolt.
Description
Technical field
The divisional application that the present invention is the applying date is " on 04 11st, 2012 ", application number is " 2012101037057 ", name is called the patent of invention of " a kind of for pneumatic impact spanner determine torque force device ".
Background technology
Pneumatic impact spanner is the efficient mechanical instrument of dismounting screw nut, and it has purposes widely in power industry.In machinery manufacturing industry, on general assembly line, except each part, maximum be exactly screw bolt and nut.The quality of a product quality to a great extent, does not lie in the quality of each part, and is the quality of assembling.
Current domestic application more widely pneumatic impact spanner is divided into and is generally divided into two classes, and a class is impact wrench routinely, and a class is pulse pneumatic spanner, and both differences are, the former can not determine moment of torsion, and the latter can but equipment price is expensive.
The assembly shop pneumatic impact spanner that often service efficiency is high of integrated mill carries out the work of stubborn bolt, but moment needed for the bolt of different size, different parts is different, qualified in order to ensure the moment tighted a bolt, after pneumatic impact spanner is tightened, also need special messenger with the tight bolt of common wrench.Often final workman puts forth one's strength excessive, is greater than required screw-down torque.So not only waste manpower, can't ensure the uniformity of moment, the bolt that relative screw-down torque is little just easily loosens, and there is potential safety hazard.
Summary of the invention
The present invention, in order to overcome the deficiency of above technology, provides and a kind ofly determines torque force device for pneumatic impact spanner.Can according to the specification of the screw nut that will tighten and tighten this working torque forces determining torque force device for pneumatic impact spanner of the convenient adjustment of moment that position requires.
The present invention overcomes the technical scheme that its technical problem adopts: a kind of pneumatic impact spanner for power industry determine torque force device, comprise the cylindrical shell in cylinder barrel shaped that one end open is closed in an one end, central shaft, the supporter of cartridge openings end is installed on by holding screw, be installed on the inner spring sheet near blind end in cylindrical shell, be installed on the outer spring sheet near supporter in cylindrical shell, described cylindrical shell blind end arranged outside has the square shaft identical with wrench socket square hole size, the inner hole wall of cylindrical shell is along the circumferential direction provided with several sour jujube grooves, central shaft is made up of the square hole shaft be connected with pneumtic impact wrench and splined shaft, splined shaft is installed in cylindrical shell and one end rotatably supports the other end by supporter is rotationally connected with in cylindrical shell blind end axis hole, inner spring sheet and outer spring sheet are the rectangular patch body with chamfered end, chamfered end is arranged in cylinder bore sour jujube groove, the other end is installed on splined shaft keyway, the length of inner spring sheet is greater than the length of outer spring sheet, so inner spring sheet is for providing the spring leaf compared with high pulling torque, outer spring sheet is for providing the spring leaf of less moment of torsion, the moment of torsion of inner spring sheet is greater than the moment of torsion of outer spring sheet, inner spring sheet and outer spring sheet select the quantity of outer spring sheet and inner spring sheet in use according to the size of required torsion, make it be set to the moment of standard, when starting working, pneumtic impact wrench drives central axis, because spring leaf to be installed on central shaft and spring leaf chamfered end is arranged in cylinder bore sour jujube groove, so central axis can drive torsion ring to rotate, torsion ring drives wrench socket to rotate, and wrench socket rotates with bolt or nut, be provided with the T-shaped adjustment spring leaf with chamfered end between inner spring sheet and outer spring sheet, adjustment spring leaf one end is installed on splined shaft keyway, and the other end is arranged in cylinder bore sour jujube groove, the T-shaped partial width be installed on splined shaft keyway of adjustment spring leaf is wide, and the width being arranged in cylinder bore sour jujube groove is narrow, so adjustment spring leaf is also for providing the spring leaf of less moment of torsion, one plane of square shaft has been disposed radially a tapered blind hole, is provided with jump ring and card bead in tapered blind hole, and the diameter axis of small circle that the axis of great circle of tapered blind hole is greater than card bead is less than the diameter of card bead, card bead only exposes a segment relative to square shaft under the effect of jump ring, when assembly wrench sleeve, card bead can be depressed the square hole that jump ring realizes wrench socket and is installed on square shaft, installs rear card bead and can eject realization under the effect of jump ring and block wrench socket.
The invention has the beneficial effects as follows: of the present invention for pneumatic impact spanner to determine torque force device structure simple, with low cost, can be arranged on common pneumatic impact spanner and use, make common pneumatic impact spanner have the function of determining torsion, possessed the effect of equivalent pulses pneumatic impact spanner.Undertaken transforming and greatly having saved cost by increasing this torque force device of determining being used for pneumatic impact spanner on original pneumatic impact spanner.When upper bolt, according to the moment of regulation, by adjusting the size and number of inner spring sheet and outer spring sheet, it is made to be set to required moment, simply easy to adjust.When the moment of tightened screw-nut reaches the moment of needs then, cylindrical shell is subject to the equal moment of reaction, now spring leaf enters elastic deformation stage, due to elastically-deformable reason, spring leaf can skid off from the sour jujube groove cylindrical shell, spring leaf is relative to barrel body rotation, thus cylindrical shell stops selecting to make tightened screw-nut no longer stressed.Because the spring leaf of now elastic deformation is sending the sound moment of operator's now tighted a bolt nut can be reminded just to reach the moment of regulation relative to the sour jujube slot part that can beat cylindrical shell during barrel body rotation, should shut-down operation.
Accompanying drawing explanation
Fig. 1 is device connection diagram of the present invention;
Fig. 2 of the present inventionly determines torque force device schematic diagram for pneumatic impact spanner;
Fig. 3 is the generalized section of determining torque force device centrally axis for pneumatic impact spanner of the present invention;
Fig. 4 is that the A-A determining torque force device for pneumatic impact spanner of the present invention is to generalized section;
Fig. 5 is that the B-B determining torque force device for pneumatic impact spanner of the present invention is to generalized section;
Fig. 6 is inner spring chip architecture schematic diagram of the present invention;
Fig. 7 is adjustment reed structure schematic diagram of the present invention;
Fig. 8 is outer spring chip architecture schematic diagram of the present invention;
In figure, 1. pneumtic impact wrench 2. is determined torque force device 2.1 central shaft 2.2 holding screw 2.3 supporter 2.4 cylindrical shell 2.5 jump ring 2.6 card bead 2.7 inner spring sheet 2.8 and is adjusted spring leaf 2.9 outer spring sheet 2.10 square shaft 2.11 tapered blind hole 3. wrench socket.
Detailed description of the invention
Below in conjunction with accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, accompanying drawing 7, the present invention will be further described for accompanying drawing 8.
Device connection diagram of the present invention as shown in Figure 1, this torque force device 2 of determining being used for pneumatic impact spanner is installed to common pneumtic impact wrench 1, and sleeve 3 is arranged on torsion ring 2.Common pneumtic impact wrench so just can be made to possess the effect determining torsion.
As Fig. 2, Fig. 3, Fig. 4, the torque force device 2 of determining that shown in Fig. 5, this is used for pneumatic impact spanner comprises the cylindrical shell 2.4 in cylinder barrel shaped that one end open is closed in an one end, central shaft 2.1, the supporter 2.3 of cylindrical shell 2.4 openend is installed on by holding screw, be installed on the inner spring sheet 2.7 near blind end in cylindrical shell 2.4, be installed on the outer spring sheet 2.9 near supporter 2.3 in cylindrical shell 2.4, described cylindrical shell 2.4 blind end arranged outside has the square shaft 2.10 identical with wrench socket 3 square hole size, the inner hole wall of cylindrical shell 2.4 is along the circumferential direction provided with several sour jujube grooves, central shaft 2.1 is made up of the square hole shaft be connected with pneumtic impact wrench 1 and splined shaft, splined shaft is installed in cylindrical shell 2.4 and one end and is rotationally connected with in cylindrical shell 2.4 blind end axis hole by the rotatable other end that supports of supporter 2.3.
Fig. 6, Fig. 8 are respectively the schematic diagram of inner spring sheet 2.7 and outer spring sheet 2.9, and inner spring sheet 2.7 and outer spring sheet 2.9 are the rectangular patch body with chamfered end, and chamfered end is arranged in cylindrical shell 2.4 endoporus sour jujube groove, and the other end is installed on splined shaft keyway.Select the quantity of outer spring sheet 2.9 and inner spring sheet 2.7 during use according to the size of required torsion, make it be set to the moment of standard.Length due to inner spring sheet 2.7 is greater than the length of outer spring sheet 2.9, so inner spring sheet 2.7 is for providing the spring leaf compared with high pulling torque, outer spring sheet 2.9 is for providing the spring leaf of less moment of torsion.So specification and the quantity of cluster spring sheet can be facilitated by moment of torsion as required.When starting working, pneumtic impact wrench 1 is with central shaft 2.1 to rotate, because spring leaf to be installed on central shaft 2.1 and spring leaf chamfered end is arranged in cylindrical shell 2.4 endoporus sour jujube groove, so central shaft 2.1 rotation can drive torsion ring 2 to rotate, torsion ring 2 drives wrench socket 3 to rotate, and wrench socket 3 rotates with bolt or nut.
When the screw-down torque of bolt and nut reaches the moment of regulation then, wrench socket 3 is subject to equal countertorque, the now stressed critical value reaching its elastic deformation in spring leaf place, due to elastically-deformable reason, spring leaf can disconnect from sour jujube groove, thus central shaft 2.1 drives spring leaf can rotate relative to cylindrical shell 2.4, in rotary course, spring leaf to disconnect from sour jujube groove due to continuous thus realize beating the sound of rattling away of cylindrical shell 2.4.Operator hears sound, just quits work immediately.Now the moment of bolt just reaches the moment of regulation.
Be provided with the T-shaped adjustment spring leaf 2.8 with chamfered end between above-mentioned inner spring sheet 2.7 and outer spring sheet 2.9, adjustment spring leaf 2.8 one end is installed on splined shaft keyway, and the other end is arranged in cylindrical shell 2.4 endoporus sour jujube groove.Because the T-shaped partial width be installed on splined shaft keyway of adjustment spring leaf 2.8 is wide, and the width being arranged in cylindrical shell 2.4 endoporus sour jujube groove is narrow.So adjustment spring leaf 2.8 is also for providing the spring leaf of less moment of torsion.So of the present inventionly determine torque force device 2 when only needing the situation of low-force square for pneumatic impact spanner at this, only less inner spring sheet 2.7 need be installed in cylindrical shell, so in order to prevent the phenomenon of toppling over when inner spring sheet 2.7 is very few, so introduce adjustment spring leaf 2.8 mainly play the effect of filling interval location.
One plane of above-mentioned square shaft 2.10 has been disposed radially a tapered blind hole, is provided with jump ring 2.5 and card bead 2.6 in tapered blind hole.And the diameter axis of small circle that the axis of great circle of tapered blind hole is greater than card bead 2.6 is less than the diameter of card bead 2.6, so card bead 2.6 only exposes a segment relative to square shaft under the effect of jump ring 2.5.When assembly wrench sleeve 3, card bead 2.6 can be depressed the square hole that jump ring 2.5 realizes wrench socket 3 and is installed on square shaft, installs rear card bead 2.6 and can eject the effect realizing blocking wrench socket 3 under the effect of jump ring 2.5.Make wrench socket 3 in use solid and reliable, difficult drop-off.
Claims (1)
1. the pneumatic impact spanner for power industry determine torque force device, it is characterized in that: comprise the cylindrical shell (2.4) in cylinder barrel shaped that one end open is closed in an one end, central shaft (2.1), the supporter (2.3) of cylindrical shell (2.4) openend is installed on by holding screw, be installed on the inner spring sheet (2.7) near blind end in cylindrical shell (2.4), be installed on the outer spring sheet (2.9) near supporter (2.3) in cylindrical shell (2.4), described cylindrical shell (2.4) blind end arranged outside has the square shaft (2.10) identical with wrench socket (3) square hole size, the inner hole wall of cylindrical shell (2.4) is along the circumferential direction provided with several sour jujube grooves, central shaft (2.1) is made up of the square hole shaft be connected with pneumtic impact wrench (1) and splined shaft, splined shaft is installed in cylindrical shell (2.4) and one end and is rotationally connected with in cylindrical shell (2.4) blind end axis hole by the rotatable other end that supports of supporter (2.3), inner spring sheet (2.7) and outer spring sheet (2.9) are the rectangular patch body with chamfered end, chamfered end is arranged in cylindrical shell (2.4) endoporus sour jujube groove, the other end is installed on splined shaft keyway, the length of inner spring sheet is greater than the length of outer spring sheet, so inner spring sheet is for providing the spring leaf compared with high pulling torque, outer spring sheet is for providing the spring leaf of less moment of torsion, the moment of torsion of inner spring sheet is greater than the moment of torsion of outer spring sheet, inner spring sheet and outer spring sheet select the quantity of outer spring sheet and inner spring sheet in use according to the size of required torsion, make it be set to the moment of standard, when starting working, pneumtic impact wrench drives central axis, because spring leaf to be installed on central shaft and spring leaf chamfered end is arranged in cylinder bore sour jujube groove, so central axis can drive torsion ring to rotate, torsion ring drives wrench socket to rotate, and wrench socket rotates with bolt or nut, be provided with the T-shaped adjustment spring leaf with chamfered end between inner spring sheet and outer spring sheet, adjustment spring leaf one end is installed on splined shaft keyway, and the other end is arranged in cylinder bore sour jujube groove, the T-shaped partial width be installed on splined shaft keyway of adjustment spring leaf is wide, and the width being arranged in cylinder bore sour jujube groove is narrow, so adjustment spring leaf is also for providing the spring leaf of less moment of torsion, one plane of square shaft has been disposed radially a tapered blind hole, is provided with jump ring and card bead in tapered blind hole, and the diameter axis of small circle that the axis of great circle of tapered blind hole is greater than card bead is less than the diameter of card bead, card bead only exposes a segment relative to square shaft under the effect of jump ring, when assembly wrench sleeve, card bead can be depressed the square hole that jump ring realizes wrench socket and is installed on square shaft, installs rear card bead and can eject realization under the effect of jump ring and block wrench socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190879.5A CN104827432B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic impact spanner for power industry determine torque force device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210103705.7A CN102785208B (en) | 2012-04-11 | 2012-04-11 | A kind ofly determine torque force device for pneumatic impact spanner |
| CN201510190879.5A CN104827432B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic impact spanner for power industry determine torque force device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210103705.7A Division CN102785208B (en) | 2012-04-11 | 2012-04-11 | A kind ofly determine torque force device for pneumatic impact spanner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104827432A true CN104827432A (en) | 2015-08-12 |
| CN104827432B CN104827432B (en) | 2016-10-12 |
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Family Applications (10)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510190420.5A Expired - Fee Related CN104827429B (en) | 2012-04-11 | 2012-04-11 | For power industry pneumatic impact spanner determine torque force device |
| CN201510191163.7A Expired - Fee Related CN104827433B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic impact spanner for power industry determine torque force device |
| CN201510190451.0A Expired - Fee Related CN104827431B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic wrench for power industry determine torque force device |
| CN201510191611.3A Expired - Fee Related CN104827435B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic impact spanner for power industry determine torque force device |
| CN201510195755.6A Expired - Fee Related CN104827437B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic impact spanner for power industry determine torque force device |
| CN201510190435.1A Expired - Fee Related CN104827430B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic wrench for power industry determine torque force device |
| CN201210103705.7A Expired - Fee Related CN102785208B (en) | 2012-04-11 | 2012-04-11 | A kind ofly determine torque force device for pneumatic impact spanner |
| CN201510191870.6A Expired - Fee Related CN104827436B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic impact spanner for power industry determine torque force device |
| CN201510191350.5A Expired - Fee Related CN104827434B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic impact spanner for power industry determine torque force device |
| CN201510190879.5A Expired - Fee Related CN104827432B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic impact spanner for power industry determine torque force device |
Family Applications Before (9)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510190420.5A Expired - Fee Related CN104827429B (en) | 2012-04-11 | 2012-04-11 | For power industry pneumatic impact spanner determine torque force device |
| CN201510191163.7A Expired - Fee Related CN104827433B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic impact spanner for power industry determine torque force device |
| CN201510190451.0A Expired - Fee Related CN104827431B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic wrench for power industry determine torque force device |
| CN201510191611.3A Expired - Fee Related CN104827435B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic impact spanner for power industry determine torque force device |
| CN201510195755.6A Expired - Fee Related CN104827437B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic impact spanner for power industry determine torque force device |
| CN201510190435.1A Expired - Fee Related CN104827430B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic wrench for power industry determine torque force device |
| CN201210103705.7A Expired - Fee Related CN102785208B (en) | 2012-04-11 | 2012-04-11 | A kind ofly determine torque force device for pneumatic impact spanner |
| CN201510191870.6A Expired - Fee Related CN104827436B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic impact spanner for power industry determine torque force device |
| CN201510191350.5A Expired - Fee Related CN104827434B (en) | 2012-04-11 | 2012-04-11 | A kind of pneumatic impact spanner for power industry determine torque force device |
Country Status (1)
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| CN (10) | CN104827429B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104827429B (en) * | 2012-04-11 | 2016-08-17 | 国网山东省电力公司烟台市牟平区供电公司 | For power industry pneumatic impact spanner determine torque force device |
| CN104476175A (en) * | 2014-11-21 | 2015-04-01 | 重庆耀勇减震器有限公司 | Tightening mechanism of damper tightening-connecting device |
| CN107081707A (en) * | 2017-05-11 | 2017-08-22 | 山东帝伯教育科技有限公司 | A kind of torsion ring for being used to determine torsion |
| CN112338849B (en) * | 2020-11-03 | 2024-08-06 | 杭州倍力耐工具有限公司 | Use convenient preset formula moment of torsion spanner |
| CN113319774B (en) * | 2021-07-07 | 2022-04-15 | 福建清流汽枪厂有限公司 | Pneumatic wrench for fishbone inner ring of gun |
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2012
- 2012-04-11 CN CN201510190420.5A patent/CN104827429B/en not_active Expired - Fee Related
- 2012-04-11 CN CN201510191163.7A patent/CN104827433B/en not_active Expired - Fee Related
- 2012-04-11 CN CN201510190451.0A patent/CN104827431B/en not_active Expired - Fee Related
- 2012-04-11 CN CN201510191611.3A patent/CN104827435B/en not_active Expired - Fee Related
- 2012-04-11 CN CN201510195755.6A patent/CN104827437B/en not_active Expired - Fee Related
- 2012-04-11 CN CN201510190435.1A patent/CN104827430B/en not_active Expired - Fee Related
- 2012-04-11 CN CN201210103705.7A patent/CN102785208B/en not_active Expired - Fee Related
- 2012-04-11 CN CN201510191870.6A patent/CN104827436B/en not_active Expired - Fee Related
- 2012-04-11 CN CN201510191350.5A patent/CN104827434B/en not_active Expired - Fee Related
- 2012-04-11 CN CN201510190879.5A patent/CN104827432B/en not_active Expired - Fee Related
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| US4418590A (en) * | 1980-06-20 | 1983-12-06 | Paul-Heinz Wagner | Screw assembly with torque determination |
| CN2095744U (en) * | 1990-12-04 | 1992-02-12 | 济南交通高等专科学校 | Numerical controlling indirect fixing torque device for pneumatic wrench machine |
| US6334377B1 (en) * | 2000-11-17 | 2002-01-01 | Izu Min Wu | Adjustable torque wrench having a lock device |
| CN2677092Y (en) * | 2004-02-01 | 2005-02-09 | 陆志国 | Special sleeve for automatic locking and delocking nut |
| CN201455877U (en) * | 2009-06-30 | 2010-05-12 | 上海保隆汽车科技股份有限公司 | Fixed-torque screwdriver |
| JP2011230225A (en) * | 2010-04-27 | 2011-11-17 | Hino Motors Ltd | Control device of fastening force of hydraulic torque wrench |
| CN201907091U (en) * | 2010-12-31 | 2011-07-27 | 长城汽车股份有限公司 | Middle socket of constant-torque wrench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104827430A (en) | 2015-08-12 |
| CN104827434A (en) | 2015-08-12 |
| CN104827433A (en) | 2015-08-12 |
| CN104827435B (en) | 2016-06-22 |
| CN104827431B (en) | 2016-06-01 |
| CN104827434B (en) | 2016-08-24 |
| CN104827429B (en) | 2016-08-17 |
| CN104827437A (en) | 2015-08-12 |
| CN102785208B (en) | 2015-10-07 |
| CN104827436B (en) | 2016-07-13 |
| CN104827432B (en) | 2016-10-12 |
| CN104827431A (en) | 2015-08-12 |
| CN104827433B (en) | 2016-08-31 |
| CN104827436A (en) | 2015-08-12 |
| CN104827429A (en) | 2015-08-12 |
| CN102785208A (en) | 2012-11-21 |
| CN104827435A (en) | 2015-08-12 |
| CN104827430B (en) | 2016-06-01 |
| CN104827437B (en) | 2016-08-31 |
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Inventor after: Zhao Bin Inventor after: Zhao Junwen Inventor after: Lu Zhaowen Inventor after: Yang Yu Inventor before: Hu Yan |
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Effective date of registration: 20170512 Address after: 010000, No. 90 tin Lin Road, Saihan District, the Inner Mongolia Autonomous Region, Hohhot Patentee after: INNER MONGOLIA POWER TRANSMISSION AND DISTRIBUTION CO.,LTD. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20170512 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: Yueqing City, Zhejiang province 325600 bovine cave village in Wenzhou City Patentee before: Hu Yan |
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Granted publication date: 20161012 Termination date: 20190411 |