CN201289421Y - Assay instrument for hydraulic torque spanner - Google Patents
Assay instrument for hydraulic torque spanner Download PDFInfo
- Publication number
- CN201289421Y CN201289421Y CNU2008202227433U CN200820222743U CN201289421Y CN 201289421 Y CN201289421 Y CN 201289421Y CN U2008202227433 U CNU2008202227433 U CN U2008202227433U CN 200820222743 U CN200820222743 U CN 200820222743U CN 201289421 Y CN201289421 Y CN 201289421Y
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- CN
- China
- Prior art keywords
- torque sensor
- instrument
- digital display
- torque
- hydraulic
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- 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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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses a calibration instrument for a hydraulic torque wrench, which mainly comprises a torque sensor (3) fixed on a housing (2) and a thrust positioning mechanism. The calibration instrument is characterized in that a digital display instrument (1) with an operating panel is connected with a signal output terminal of the torque sensor (3); a foursquare hole (4) is formed on the upper end surface of the torque sensor; an adapter (6) connected with the head of the wrench is inserted into the foursquare hole (4); and the thrust positioning mechanism is a counterforce arm stopper (7), of which the position is adjustable. The utility model has the advantages that the structure is simple, the torque sensor and the adapter can be inserted conveniently and quickly, the position of the counterforce arm stopper is adjustable and is suitable for detecting the hydraulic torque wrenches with different models; and the digital display instrument can directly display the measured torque values, and the calibration instrument serves the functions of automatic alarm and self-calibration, so as to facilitate safe and reliable application.
Description
Technical field
The utility model belongs to detecting instrument, is specifically related to a kind of detector for hydraulic torque wrench.
Background technology
At present, hydraulic torque wrench has been that kind is various, and specification does not wait, and specially at hydraulic torque wrench examine and determine with the instrument of verification seldom.There is following some deficiency in various degree in existing detector for hydraulic torque wrench: 1. complex structure, be difficult for making, and also damage easily; 2. versatility is poor, can not satisfy the calibrating of different model hydraulic torque wrench simultaneously; 3. torque value is not directly to read, but will convert according to the hydraulic pressure value that applies, and easily causes certified value inaccurate, and the application of force surpasses certified value and be difficult for being found, and is easy to cause hydraulic torque wrench to damage.
The utility model content
The purpose of this utility model is to overcome deficiency of the prior art, propose a kind of simple in structure, versatility good, and indicating value is directly perceived, measure the calibrating instrument of hydraulic spanner accurate, safe in utilization.
The technical scheme that realizes above-mentioned purpose is as described below:
Detector for hydraulic torque wrench mainly comprises torque sensor and the thrust detent mechanism that is fixed on the housing, it is characterized in that, is connected with a digital display instrument that guidance panel is housed at the signal output part of torque sensor; There is a cubic hole upper surface of described torque sensor, and the adapter that is connected with driving end is plugged in the described cubic hole, and described thrust detent mechanism is an adjustable counter-force arm stop block in position.
The electrical measurement digital display plate, input interface and the guidance panel that are used for the electric signal of torque sensor is carried out digital processing and demonstration are housed in the digital display instrument of above-mentioned hydraulic spanner calibrating instrument.Electrical measurement digital display plate swings (J-11.0592MHZ) by instrumentation amplifier (INA128), analog to digital converter (MAX195), single-chip microcomputer (AT89S8252), display driver (MAX7219), counter (74HC393), crystal oscillator and five charactrons (LTS-547RFH) are formed.
During calibrating, the hydraulic torque wrench head is connected with torque sensor by adapter, and the handgrip of spanner is contacted with counter-force arm stop block, hydraulic pump is given the hydraulic pressure dial torque wrench application of force, this hydraulic torque wrench occurred level is rotated, and counter-force arm stop block stops it to rotate, and the moment of torsion that produce this moment passes to torque sensor by adapter, sensor deforms and will be out of shape the electric signal that is produced and outputs on the digital display instrument, and digital display instrument shows its torque value at once.
The utility model is simple in structure, and torque sensor and adapter are pegged graft convenient, fast; The counter-force arm stop block adjustable positions can be fit to the calibrating of different model hydraulic torque wrench; Digital display instrument can directly show the torque value of mensuration, and has automatic warning function and oneself's calibrating function, and is safe and reliable.
Description of drawings
Fig. 1 is a unitary construction synoptic diagram of the present utility model.
Fig. 2 is the cut-open view of the utility model main part.
Fig. 3 is the front schematic view of sensor among Fig. 2.
Fig. 4 is the vertical view of sensor among Fig. 2.
Fig. 5 is a kind of counter-force arm stop block vertical view synoptic diagram of the utility model thrust detent mechanism.
Fig. 6 is the another kind of counter-force arm stop block vertical view synoptic diagram of the utility model thrust detent mechanism.
Fig. 7 is the shape synoptic diagram of the utility model adapter.
Fig. 8 is the vertical view of adapter.
Fig. 9 is the utility model user mode synoptic diagram.
Among the figure: 1. digital display instrument, 2. housing, 3. sensor, 4. cubic hole, 5. back-up ring, 6. adapter, 7. counter-force arm stop block, 8. test interface, 9. bearing, 10. connecting line, 11. handles, 12. power supplys, 13. base plates.
Embodiment
Below in conjunction with embodiment shown in the drawings the utility model is described in further detail.
As shown in Figure 1, the utility model hydraulic spanner calibrating instrument mainly comprises the torque sensor 3 that is fixed on the housing 2 and as the counter-force arm stop block 7 of thrust detent mechanism.The signal output part of torque sensor is connected with the digital display instrument 1 that guidance panel is housed through connecting line 10 by the test interface 8 that is installed on the housing 2; There is a cubic hole 4 upper surface of torque sensor 3, and the hypomere of adapter 6 is plugged in the cubic hole 4; Counter-force arm stop block 7 is by being bolted on the housing 2, and its horizontal level can be adjusted.
Cubic hole 4 couplings of the bottom of adapter 6 and sensor 3 upper ends, two kinds of shapes are arranged at its top: a kind of is cubic adapter, and another kind is six side's adapters, with the hydraulic spanner of clamping difformity opening.
Counter-force arm stop block 7 also is divided into two kinds: a kind of is to drive block (as shown in Figure 5); Another kind is hollow block (as shown in Figure 6).Can select corresponding counter-force arm stop block according to the model of spanner, guarantee that spanner is forming excellent contact with it.
In the power pack 12 in the housing 2 power panel (as shown in Figure 2) is arranged, its effect is to torque sensor 3 power supplies, when torque sensor 3 deformed, power supply 12 was supplied with these sensor 3 original magnitudes of voltage and will be changed, and test interface 8 spreads out of the voltage signal that changes.
Electrical measurement digital display plate in the digital display instrument 1 is provided with instrumentation amplifier (INA128) signal of sensor 3 is amplified, signal after the amplification is exported to analog to digital converter (MAX195), the binary number that this analog to digital converter transforms signal, export to single-chip microcomputer (AT89S8252), the data that this single-chip microcomputer constantly the reads analog to digital converter input line number word processing of going forward side by side, catching hydraulic spanner alarm set point peak value also preserves, being scaled respective value according to the N.m of unit or Ibf.ft exports to programmable display driver (MAX7219) and shows, driver (MAX7219) will carry out number automatically to its setting according to single-chip microcomputer and show, and automatically displaying contents be become drive signal and export to five charactrons (LTS-547RFH).Counter (74HC393) produces the synchronizing signal of each unit chip; Crystal oscillator (J-11.0592MHZ) clocking, five charactrons (LTS-547RFH) are formed display window.This digital display instrument on by the side spanner can report to the police automatically when adding moment and surpassing certified value.
Claims (3)
1. a detector for hydraulic torque wrench mainly comprises the torque sensor (3) and the thrust detent mechanism that are fixed on the housing (2), it is characterized in that: the signal output part at torque sensor (3) is connected with a digital display instrument (1) that guidance panel is housed; There is a cubic hole (4) upper surface of described torque sensor, and the adapter that is connected with driving end (6) is plugged in the described cubic hole (4), and described thrust detent mechanism is an adjustable counter-force arm stop block in position (7).
2. according to the described hydraulic spanner calibrating instrument of claim 1, it is characterized in that: the electrical measurement digital display plate, input interface and the guidance panel that are used for the electric signal of torque sensor is carried out digital processing and demonstration are housed in the described digital display instrument (1).
3. according to the described hydraulic spanner calibrating instrument of claim 2, it is characterized in that: described electrical measurement digital display plate swings J-11.0592MHZ by instrumentation amplifier INA128, analog to digital converter MAX195, single chip computer AT 89S8252, display driver MAX7219, counter 74HC393, crystal oscillator and five charactron LTS-547RFH form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202227433U CN201289421Y (en) | 2008-11-19 | 2008-11-19 | Assay instrument for hydraulic torque spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202227433U CN201289421Y (en) | 2008-11-19 | 2008-11-19 | Assay instrument for hydraulic torque spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201289421Y true CN201289421Y (en) | 2009-08-12 |
Family
ID=40981105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202227433U Expired - Fee Related CN201289421Y (en) | 2008-11-19 | 2008-11-19 | Assay instrument for hydraulic torque spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201289421Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374923A (en) * | 2010-08-23 | 2012-03-14 | 浙江吉利汽车有限公司 | Torque calibrator for multifunctional wrench |
| CN102607766A (en) * | 2012-03-29 | 2012-07-25 | 国电联合动力技术有限公司 | Check device of hydraulic spanner and method of using check device |
| CN103364135A (en) * | 2013-06-21 | 2013-10-23 | 上海诺霸科技有限公司 | Buffer clamp |
-
2008
- 2008-11-19 CN CNU2008202227433U patent/CN201289421Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374923A (en) * | 2010-08-23 | 2012-03-14 | 浙江吉利汽车有限公司 | Torque calibrator for multifunctional wrench |
| CN102374923B (en) * | 2010-08-23 | 2014-06-04 | 浙江吉利汽车有限公司 | Torque calibrator for multifunctional wrench |
| CN102607766A (en) * | 2012-03-29 | 2012-07-25 | 国电联合动力技术有限公司 | Check device of hydraulic spanner and method of using check device |
| CN103364135A (en) * | 2013-06-21 | 2013-10-23 | 上海诺霸科技有限公司 | Buffer clamp |
| CN103364135B (en) * | 2013-06-21 | 2016-01-13 | 上海诺霸科技有限公司 | Buffer clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHAANXI DONGFANG AVIATION INSTRUMENT CO., LTD. Free format text: FORMER NAME: DONGFANG INSTRUMENT FACTORY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 57 box 723102, South District, Hanzhoung Economic Development Zone, Shaanxi, China Patentee after: SHAANXI DONGFANG AVIATION INSTRUMENT CO., LTD. Address before: 57 box 723102, South District, Hanzhoung Economic Development Zone, Shaanxi, China Patentee before: Dongfang Instrument Factory |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20171119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |