CN103072109A - Anti-overloading torque spanner - Google Patents
Anti-overloading torque spanner Download PDFInfo
- Publication number
- CN103072109A CN103072109A CN2013100190105A CN201310019010A CN103072109A CN 103072109 A CN103072109 A CN 103072109A CN 2013100190105 A CN2013100190105 A CN 2013100190105A CN 201310019010 A CN201310019010 A CN 201310019010A CN 103072109 A CN103072109 A CN 103072109A
- Authority
- CN
- China
- Prior art keywords
- spanner
- torque
- spring
- torque spanner
- extension spring
- 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.)
- Granted
Links
Images
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention relates to a bolt fastening tool, in particular to an anti-overloading torque spanner which solves the high cost and other problems of an existing torque spanner. The anti-overloading torque spanner comprises a spanner sleeve (2) and a spanner head (1) with the tail being inserted into the spanner sleeve (2), and the spanner sleeve (2) fixes the spanner head (1) through a positioning pin (7); a tension spring (3) and a hollow handle (5) are also arranged; the tail of the spanner sleeve (2) is inserted into one end of the tension spring (3), and the tail of the spanner sleeve (2) and one end of the tension spring (3) are assembled by interference fit; and the other end of the tension spring (3) is inserted into one end of the handle (5), and the other end of the tension spring (3) and one end of the handle (5) are assembled by interference fit. According to the anti-overloading torque spanner, the design is reasonable, the structure is simple, the condition that the torque reaches a set value is very significantly indicated through the deformation of the spring due to the spring structure, the spanner is enabled not to be damaged after the torque is applied continuously, and the torque is not applied to a bolt continuously.
Description
Technical field
The present invention relates to the bolted instrument, be specially a kind of antioverloading torque spanner.
Background technology
Being threaded is connected mode the most general between the engineering goods, and the overwhelming majority must tighten, and bolt is connected to bears before the service load, is subject in advance the effect of power.Common wrench can not reflect intuitively whether pre-fastening moment reaches, and just must use can reflect the torque spanner that moment (moment of torsion) is big or small for satisfying need of production.Torque spanner is used for fastening bolt, and high-strength bolt can be divided into two kinds of torque-shear type and large hexangle types, and GB torque-shear type high-strength bolt is four kinds of M16, M20, M22, M24, and two kinds of M27, the M30 of non-GB also arranged now; The GB high-strength bolts is that M16, M20, M22, M24, M27, M30 etc. are several.General all wants just tightly tight eventually more first for the fastening of high-strength bolt, and per step needs that all strict torque demand is arranged.The first of high-strength bolts tightly and eventually tightly all must be used constant torque wrench.
But the expensive cost of present high-precision torque spanner is high, improper use is easy to cause damage, and, reach when setting torque value, " clickly " alarm sound under noisy working environment, can't significantly point out pre-fastening moment up to standard, the user may continue firmly, moment occurs and twists and cause torque spanner to damage or bolt is crossed the phenomenon of moment.
Therefore, be necessary to invent a kind of can control moment, cost is low, and can allow very intuitively the user feel torque spanner up to standard of moment.
Summary of the invention
The problems referred to above that the present invention exists in order to solve existing torque spanner provide a kind of antioverloading torque spanner.
The present invention adopts following technical scheme to realize:
A kind of antioverloading torque spanner comprises that wrench socket and afterbody insert the driving end of described wrench socket (part that is used for stubborn bolt is the head of driving end), and described wrench socket is by alignment pin back-up wrench head; The handle that also comprises extension spring and inner hollow, the afterbody of the described wrench socket part of driving end (insert be the head of wrench socket) inserts in the end of extension spring and both adopt interference fit together, and the other end of described extension spring is inserted in the end of handle and the two adopts interference fit together.
Extension spring (also being tension spring) is the helical spring that bears axial tension, and extension spring is generally all used the manufacturing of circular section material, when not bearing load, between the circle of extension spring and the circle all is and tightly very close to each other.
Moment is that the power of instigating object to rotate multiply by the distance of rotating shaft.After extension spring was made, the power of extension spring bending is namely known, and so above-mentioned torque spanner was after making, and the setting moment scope of spanner has also just been determined.
During work, driving end is enclosed within the setting moment (moment of torsion) of coming the coarse adjustment spanner on the bolt by the length in the adjusting driving end insertion wrench socket.When using torque spanner to tight a bolt, extension spring is owing to needing transmitting torque also can produce flexural deformation, and when moment values reached setting moment, it is maximum that the extension spring deflection reaches, so that the user can't continue to apply moment of torsion.Such spring structure utilizes the deflection of spring to indicate very significantly moment of torsion after moment of torsion reaches to have reached setting value, and can guarantee to continue to apply moment of torsion and neither can damage spanner this moment, also can not continue to apply moment of torsion to bolt.And the rigidity of extension spring self also can guarantee not reach when setting value at moment of torsion, can continue to apply moment of torsion until reach the torque value of setting, effectively prevented the overload of spanner.
In order to improve the overall precision of spanner, increased again inner regulating spring.
Preferably, also comprise and place regulating spring in the extension spring, that can compress or stretch, one end of described regulating spring is fixedly connected with the afterbody of wrench socket, the other end of regulating spring be threaded with the adjusting nut that places the handle other end (being to be threaded with adjusting nut after the other end of regulating spring stretches).
Finely tune the setting torque value of torque spanner by the length of adjusting regulating spring.Turn adjusting nut stretching regulating spring can increase the setting torque value of torque spanner, and principle is that the stretching regulating spring is equivalent to compress extension spring, has also just increased the required power of bend tension spring, has namely increased the setting torque value of torque spanner; Turn adjusting nut compression adjustment spring can reduce the setting torque value of torque spanner, and principle is that the compression adjustment spring is equivalent to the extension spring that stretches, and has also just reduced the required power of bend tension spring, has namely reduced the setting torque value of torque spanner.So reach the purpose of the setting torque value of fine setting torque spanner.
In addition, torque spanner is after using for a long time, extension spring can produce certain plastic deformation, also can compensate by the length (namely stretching or compression) of adjusting regulating spring the amount of plastic deformation of extension spring this moment, prolong the service life of torque spanner, improve the service precision of torque spanner.
The present invention is reasonable in design, simple in structure, has solved the problems such as cost that existing torque spanner exists is high, fragile.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure, 1-driving end, 2-wrench socket, 3-extension spring, 4-regulating spring, 5-handle, 6-adjusting nut, 7-alignment pin.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated.
As shown in Figure 1, a kind of antioverloading torque spanner comprises that wrench socket 2 and afterbody insert the driving end 1 of described wrench socket 2, and described wrench socket 2 is by alignment pin 7 back-up wrench heads 1; The handle 5 that also comprises extension spring 3 and inner hollow, the afterbody of described wrench socket 2 inserts in the end of extension spring 3 and both adopt interference fit together, and the other end of described extension spring 3 is inserted in the end of handle 5 and the two adopts interference fit together.
Preferably, also comprise and place regulating spring 4 in the extension spring 3, that can compress or stretch, one end of described regulating spring 4 is fixedly connected with the afterbody of wrench socket 2, and the other end of regulating spring 4 is threaded with the adjusting nut that places handle 5 other ends (6).
During implementation, one end of regulating spring 4 is a lot of with the mode that the afterbody of wrench socket 2 is fixedly connected with, for example, one end of regulating spring 4 stretches the rear afterbody that directly is inserted into wrench socket 2, perhaps the afterbody of wrench socket 2 forms a control, an end of regulating spring 4 by interference fit in the afterbody cavity of gloves cylinder 2.
Claims (2)
1. an antioverloading torque spanner comprises that wrench socket (2) and afterbody insert the driving end (1) of described wrench socket (2), and described wrench socket (2) is by alignment pin (7) back-up wrench head (1); It is characterized in that: the handle (5) that also comprises extension spring (3) and inner hollow, the afterbody of described wrench socket (2) inserts in the end of extension spring (3) and both adopt interference fit together, and the other end of described extension spring (3) is inserted in the end of handle (5) and the two adopts interference fit together.
2. antioverloading torque spanner according to claim 1, it is characterized in that: also comprise placing regulating spring (4) in the extension spring (3), that can compress or stretch, one end of described regulating spring (4) is fixedly connected with the afterbody of wrench socket (2), and the other end of regulating spring (4) is threaded with the adjusting nut (6) that places handle (5) other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310019010.5A CN103072109B (en) | 2013-01-19 | 2013-01-19 | Anti-overloading torque spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310019010.5A CN103072109B (en) | 2013-01-19 | 2013-01-19 | Anti-overloading torque spanner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103072109A true CN103072109A (en) | 2013-05-01 |
| CN103072109B CN103072109B (en) | 2014-11-05 |
Family
ID=48148909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310019010.5A Active CN103072109B (en) | 2013-01-19 | 2013-01-19 | Anti-overloading torque spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103072109B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI500487B (en) * | 2013-08-30 | 2015-09-21 | ||
| CN112476306A (en) * | 2020-11-20 | 2021-03-12 | 中国电子科技集团公司第二十九研究所 | Be applied to moment spanner of multichannel radio frequency coaxial connector dismouting |
| CN115625664A (en) * | 2022-12-19 | 2023-01-20 | 天津航天机电设备研究所 | Torque wrench for space environment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4897198A (en) * | 1972-03-23 | 1973-12-11 | ||
| US4774864A (en) * | 1985-07-11 | 1988-10-04 | Facom | Dynamometric screw-driver |
| CN1417002A (en) * | 2001-10-29 | 2003-05-14 | 株式会社空研 | Torque wrench |
| FR2860570A1 (en) * | 2003-10-03 | 2005-04-08 | Clesse Ind | Domestic use gas bottles valve control device, has plate coming into contact with on-off switch, under deformation effect, when torque, preset by manufacturer of bottle, is applied to flywheel of valve |
| TW201036767A (en) * | 2009-04-06 | 2010-10-16 | Xuan-Ren Chen | Torque adjustment and locking mechanism of torque tool |
| CN203031531U (en) * | 2013-01-19 | 2013-07-03 | 山西大运汽车制造有限公司 | Anti-overloading torque spanner |
-
2013
- 2013-01-19 CN CN201310019010.5A patent/CN103072109B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4897198A (en) * | 1972-03-23 | 1973-12-11 | ||
| US4774864A (en) * | 1985-07-11 | 1988-10-04 | Facom | Dynamometric screw-driver |
| CN1417002A (en) * | 2001-10-29 | 2003-05-14 | 株式会社空研 | Torque wrench |
| FR2860570A1 (en) * | 2003-10-03 | 2005-04-08 | Clesse Ind | Domestic use gas bottles valve control device, has plate coming into contact with on-off switch, under deformation effect, when torque, preset by manufacturer of bottle, is applied to flywheel of valve |
| TW201036767A (en) * | 2009-04-06 | 2010-10-16 | Xuan-Ren Chen | Torque adjustment and locking mechanism of torque tool |
| CN203031531U (en) * | 2013-01-19 | 2013-07-03 | 山西大运汽车制造有限公司 | Anti-overloading torque spanner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI500487B (en) * | 2013-08-30 | 2015-09-21 | ||
| CN112476306A (en) * | 2020-11-20 | 2021-03-12 | 中国电子科技集团公司第二十九研究所 | Be applied to moment spanner of multichannel radio frequency coaxial connector dismouting |
| CN115625664A (en) * | 2022-12-19 | 2023-01-20 | 天津航天机电设备研究所 | Torque wrench for space environment |
| CN115625664B (en) * | 2022-12-19 | 2023-09-01 | 天津航天机电设备研究所 | Moment spanner for space environment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103072109B (en) | 2014-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103072109B (en) | Anti-overloading torque spanner | |
| CN201907091U (en) | Middle socket of constant-torque wrench | |
| CN201841520U (en) | Repair kit for torque spanner | |
| CN203031531U (en) | Anti-overloading torque spanner | |
| CN204805264U (en) | Connecting element, connecting element are to, shaping implement and tap | |
| EP3111083A1 (en) | Bushing intended for connecting a blade root of a wind turbine blade directly or indirectly to a hub of a turbine | |
| CN103624575B (en) | Spindle shell clamp | |
| CN209273310U (en) | One kind is to the adjustable wrench for dismounting of wheel bolt | |
| CN101463830A (en) | Shaft coupling structure of impeller pump | |
| CN203835921U (en) | Automobile four-wheel positioning regulating assembly | |
| CN203317310U (en) | Sleeve capable of enabling stud to be rapidly tightened | |
| CN207104752U (en) | A kind of combined sleeve die nut | |
| CN205218957U (en) | Rotatable and extend adjustable spanner | |
| CN201871906U (en) | Spring compression tooling | |
| CN205201391U (en) | Low tone is apart from SMA moment spanner | |
| CN205117412U (en) | Locking device of blade locking plate | |
| CN210238943U (en) | Sleeve device for fastener | |
| CN105196224A (en) | Adjustable wrench | |
| CN204263049U (en) | A kind of self adaptation reset sleeve spanner | |
| CN202212931U (en) | Nut tightening machine | |
| CN204239417U (en) | A kind of brass stud | |
| CN202037580U (en) | Torque wrench allowing torque adjustment | |
| CN102562759A (en) | Combined hexagon bolt | |
| CN203495879U (en) | Driver for internal ball joint | |
| CN211136947U (en) | Cross spanner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: CHENGDU DAYUN AUTOMOTIVE GROUP COMPANY LIMITED Free format text: FORMER OWNER: SHANXI DAYUN AUTOMOBILE MANUFACTURING CO., LTD. Effective date: 20140923 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hao Zewei Inventor after: Chen Gaoli Inventor after: Liu Baoqian Inventor after: Li Huaxin Inventor before: Yang Leigang Inventor before: Wang Wanying Inventor before: Liu Wei Inventor before: Hao Zewei |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YANG LEIGANG WANG WANYING LIU WEI HAO ZEWEI TO: HAO ZEWEI CHEN HAOLI LIU BAOQIAN LI HUAXIN Free format text: CORRECT: ADDRESS; FROM: 044000 YUNCHENG, SHAANXI PROVINCE TO: 610105 CHENGDU, SICHUAN PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20140923 Address after: 8 No. 610105 Sichuan city in Chengdu province city of Chengdu economic and Technological Development Zone Avenue Applicant after: Chengdu Co., Ltd of great Yun automobile group Address before: 044000 Shanxi province Yuncheng City Airport Tongda Road No. 8 Applicant before: Shanxi Dayun Automobile Manufacture Company |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Leigang Inventor after: Wang Wanying Inventor after: Liu Wei Inventor after: Hao Zewei Inventor after: Chen Gaoli Inventor after: Liu Baoqian Inventor after: Li Huaxin Inventor before: Hao Zewei Inventor before: Chen Gaoli Inventor before: Liu Baoqian Inventor before: Li Huaxin |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HAO ZEWEI CHEN HAOLI LIU BAOQIAN LI HUAXIN TO: YANG LEIGANG WANG WANYING LIU WEI HAO ZEWEI CHEN HAOLI LIU BAOQIAN LI HUAXIN |