CN2100289U - Automatic display dynamometer wrench - Google Patents
Automatic display dynamometer wrench Download PDFInfo
- Publication number
- CN2100289U CN2100289U CN 90213553 CN90213553U CN2100289U CN 2100289 U CN2100289 U CN 2100289U CN 90213553 CN90213553 CN 90213553 CN 90213553 U CN90213553 U CN 90213553U CN 2100289 U CN2100289 U CN 2100289U
- Authority
- CN
- China
- Prior art keywords
- force rod
- spanner
- sensor
- signal processing
- processing circuit
- 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.)
- Withdrawn
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to an automatic display dynamometric spanner, which is composed of a spanner head 1, a front bearing rod 2, a back bearing rod 3, a sensor 4, a signal processing circuit board 5, a liquid crystal displayer 6, a power battery 7, a power switch 9, a memory switch 10 and a handle cover 8, wherein, the sensor 4, the signal processing circuit board 5 and the power battery 7 are installed in the bearing rod one after one to form three-section arrangement structure. The utility model has the advantages of high accuracy, automatic display of dynamometric values, strong visualizability, convenient operation, has manual memory function, can be used as a detection tool, and can also be used as a serviceable tool.
Description
The utility model is a kind of spanner that can show dynamometry automatically, can be widely used in the detection and the fastened tools of fastening and aircraft, vehicle and the various machine assembling repairs of rail track screw.
The employed moment spanner of China mainly contains two kinds at present.A kind of is pointer-type, and its shortcoming is that degree of accuracy is relatively poor, and error amount is more than 10%, another kind is a band sound equipment dial torque wrench, as the novel number of patent application of practicality is 89210085.0, and its advantage is that degree of accuracy is higher, error amount about 4%, use also more convenient according to required moment size setting in advance, when the added torsion of operator reaches the ratings of prior setting, just send sound equipment, its shortcoming is can only make instrument to use, do not possess measuring ability, can not be as testing tool.
The purpose of this utility model is in order to overcome the above-mentioned shortcoming of existing two kinds of dial torque wrenches, to have designed a kind of degree of accuracy height, can making tool using, possess measuring ability again, can be used as testing tool, intuitive is strong, can show automatically that dynamometry size ， And has manual memory function.
Automatically show that torque-indicating wrencg is as shown in Figure 1 by spanner 1, front and back force rod 2,3 sensors 4, signal processing circuit board 5, LCD 6, power-supply battery 7 and grip 8 are formed, the front end of force rod 2 before wherein spanner 1 usefulness pin is fixed on, back force rod 3 is connected with preceding force rod 2 by pin, sensor 4 is contained in the force rod, signal processing circuit board 5, power-supply battery 7 is contained in the force rod 3 of back, on the force rod 3 of back, LCD 6, power switch 9, memory switch 10 are housed also, grip 8 are arranged at the rear portion of back force rod 3.
The circuit that is contained in the signal processing circuit board in the back force rod 3 comprises the sensing element of being made up of several strain resistors 11, and by the amplifier 12 that amplifier element and resistance are formed, A/D transducer 13 adopts integrated package, and LCD 6, dry cell E
1E
2
The circuit working principle of this spanner as shown in Figure 2, after power switch 9 is opened, in time measure the strain value that this place is produced by moment of flexure by the sensor 4 that is installed in the force rod, thereby determine the suffered torque value of spanner 1 work, sensing element 11 adopts the strain principle to constitute, and the electric signal of output is through amplifier 12, amplify after A/D transducer 13, liquid crystal driver 14, deliver to LCD 6, demonstrate torque value, sensing element and signal processing circuit are respectively by dry cell E
1E
2Power supply, signal processing circuit board 5 stick with glue or are screwed in the force rod of back.
Automatically show that torque-indicating wrencg has adopted by bending strain (moment of flexure) mensuration torque value, easy, reasonable, sensor 4, signal processing circuit board 5, power-supply battery 7 are installed in the force rod 3 of back successively, form three stage structure and arrange compact conformation.A/D converter, liquid crystal driver adopt the IC integrated package, have simplified circuit greatly.This spanner can be used as fastened tools and uses, and also can be used as testing tool and uses, and forward adds torsion and all can show, can require manually to remember currency ， And according to the operator and show; The degree of accuracy height.Error amount is about 2%, and intuitive is strong, and is easy for operation.
Description of drawings: Fig. 1 shows the torque-indicating wrencg structural representation automatically;
Fig. 2 is a spanner circuit working functional-block diagram.
Mark among the figure: (1) spanner, (2) preceding force rod, (3) back force rod, (4) sensor; (5) signal processing circuit board, 6) LCD, (7) power-supply battery, (8) grip, (9) power switch, (10) memory switch, (11) sensing element, (12) amplifier, (13) A/D converter, (14) liquid crystal driver, (6) LCD.
Claims (1)
1, the utility model is a kind ofly can show torque-indicating wrencg automatically, by spanner, sensor, force rod, parts such as grip and be contained in electronic component in the force rod of back: A/D transducer 13, liquid crystal driver 14 and LCD 6 are formed, it is characterized in that described spanner 1 usefulness pin is fixed on the front end of preceding force rod 2, back force rod 3 is connected with preceding force rod 2 by pin, sensor 4 is installed in the force rod, signal processing circuit board 5 sticks with glue or is screwed in the force rod of back, on the force rod 3 of back, LCD 6 is housed, power-supply battery 7, power switch 9, memory switch 10, there is grip 8 at the rear portion of back force rod 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90213553 CN2100289U (en) | 1990-07-09 | 1990-07-09 | Automatic display dynamometer wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90213553 CN2100289U (en) | 1990-07-09 | 1990-07-09 | Automatic display dynamometer wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2100289U true CN2100289U (en) | 1992-04-01 |
Family
ID=4893014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90213553 Withdrawn CN2100289U (en) | 1990-07-09 | 1990-07-09 | Automatic display dynamometer wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2100289U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101417415B (en) * | 2007-10-23 | 2010-09-29 | 谢智庆 | Wrench measurement structure |
| CN103786127A (en) * | 2012-10-30 | 2014-05-14 | 玛珂系统分析和开发有限公司 | Method and apparatus for recording screwing operation |
| CN104400729A (en) * | 2014-10-17 | 2015-03-11 | 年福东 | Dual-purpose torque wrench |
| CN107363776A (en) * | 2016-05-12 | 2017-11-21 | 巨轮实业股份有限公司 | The torque alarming structure of switching hand-held tool |
| CN107538422A (en) * | 2017-02-16 | 2018-01-05 | 北京卫星环境工程研究所 | Propulsion system is spirally connected bulb assembling device for screwing up and tightening method |
| CN107702832A (en) * | 2017-09-28 | 2018-02-16 | 江苏凯嘉橡胶科技股份有限公司 | A kind of tension detection means |
| CN112629737A (en) * | 2020-12-14 | 2021-04-09 | 合肥工业大学 | Method for measuring torque of torque wrench and application thereof |
-
1990
- 1990-07-09 CN CN 90213553 patent/CN2100289U/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101417415B (en) * | 2007-10-23 | 2010-09-29 | 谢智庆 | Wrench measurement structure |
| CN103786127A (en) * | 2012-10-30 | 2014-05-14 | 玛珂系统分析和开发有限公司 | Method and apparatus for recording screwing operation |
| CN103786127B (en) * | 2012-10-30 | 2016-04-20 | 玛珂系统分析和开发有限公司 | For recording the method and apparatus of tighten the screws |
| CN104400729A (en) * | 2014-10-17 | 2015-03-11 | 年福东 | Dual-purpose torque wrench |
| CN107363776A (en) * | 2016-05-12 | 2017-11-21 | 巨轮实业股份有限公司 | The torque alarming structure of switching hand-held tool |
| CN107538422A (en) * | 2017-02-16 | 2018-01-05 | 北京卫星环境工程研究所 | Propulsion system is spirally connected bulb assembling device for screwing up and tightening method |
| CN107702832A (en) * | 2017-09-28 | 2018-02-16 | 江苏凯嘉橡胶科技股份有限公司 | A kind of tension detection means |
| CN107702832B (en) * | 2017-09-28 | 2024-02-20 | 江苏凯嘉橡胶科技股份有限公司 | Tension detection device |
| CN112629737A (en) * | 2020-12-14 | 2021-04-09 | 合肥工业大学 | Method for measuring torque of torque wrench and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |