CN101738290A - Detector for hydraulic torque wrench - Google Patents
Detector for hydraulic torque wrench Download PDFInfo
- Publication number
- CN101738290A CN101738290A CN200810232612A CN200810232612A CN101738290A CN 101738290 A CN101738290 A CN 101738290A CN 200810232612 A CN200810232612 A CN 200810232612A CN 200810232612 A CN200810232612 A CN 200810232612A CN 101738290 A CN101738290 A CN 101738290A
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- CN
- China
- Prior art keywords
- torque sensor
- digital display
- detector
- counter
- torque wrench
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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.)
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses a detector for a hydraulic torque wrench, mainly comprising a torque sensor (3) and a thrust location mechanism fixed on a shell (2). The detector for the hydraulic torque wrench is characterized in that a signal output end of the torque sensor (3) is connected with a digital display (1) provided with an operation panel; a square hole (4) is arranged on the upper end surface of the torque sensor; a rotary connector (6) connected with the wrench head is plugged in the square hole (4); the thrust location mechanism is a counter-force arm stop block (7) the position of which can be adjusted. The invention has the advantages of simple structure, convenient and quick plug-in of the torque sensor and the rotary connector; the counter-force arm stop block has adjustable positions and is suitable for detecting the hydraulic torque wrenches with different models; the digital display can directly display the detected torque value, has the functions of automatic warning and self-detection and is safe and reliable to use.
Description
Technical field
The invention belongs to detecting instrument, be 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.
Summary of the invention
The objective of the invention 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 present invention 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 invention.
Fig. 2 is the cut-open view of main part of the present invention.
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 thrust detent mechanism of the present invention.
Fig. 6 is the another kind of counter-force arm stop block vertical view synoptic diagram of thrust detent mechanism of the present invention.
Fig. 7 is the shape synoptic diagram of adapter of the present invention.
Fig. 8 is the vertical view of adapter.
Fig. 9 is a user mode synoptic diagram of the present invention.
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 present invention is described in further detail.
As shown in Figure 1, hydraulic spanner calibrating instrument of the present invention 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.
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 detector for hydraulic torque wrench 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 detector for hydraulic torque wrench 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 microcomputer (AT89S8252), display driver (MAX7219), counter (74HC393), crystal oscillator and five charactrons (LTS-547RFH) are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810232612A CN101738290A (en) | 2008-11-24 | 2008-11-24 | Detector for hydraulic torque wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810232612A CN101738290A (en) | 2008-11-24 | 2008-11-24 | Detector for hydraulic torque wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101738290A true CN101738290A (en) | 2010-06-16 |
Family
ID=42462051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810232612A Pending CN101738290A (en) | 2008-11-24 | 2008-11-24 | Detector for hydraulic torque wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101738290A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102023069A (en) * | 2010-11-02 | 2011-04-20 | 重庆康明斯发动机有限公司 | Tightening machine checker |
| CN103245460A (en) * | 2013-05-13 | 2013-08-14 | 内蒙古自治区计量测试研究院 | Calibrating device for large-torque hydraulic wrench |
| CN107632763A (en) * | 2017-09-13 | 2018-01-26 | 拜尔液压动力（武汉）股份有限公司 | Hydraulic spanner digital management system and method |
| CN107941419A (en) * | 2017-02-19 | 2018-04-20 | 郑州东辰科技有限公司 | Torque spanner calibrating installation |
| CN112629751A (en) * | 2021-02-24 | 2021-04-09 | 陕西东方航空仪表有限责任公司 | Hydraulic wrench calibrating instrument with reaction arm angle adjusting function |
| CN114279629A (en) * | 2021-12-30 | 2022-04-05 | 陕西东方航空仪表有限责任公司 | Hydraulic torque wrench calibrating device |
| CN114279628A (en) * | 2021-12-30 | 2022-04-05 | 陕西东方航空仪表有限责任公司 | Reaction arm assembly for hydraulic torque wrench calibrators |
-
2008
- 2008-11-24 CN CN200810232612A patent/CN101738290A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102023069A (en) * | 2010-11-02 | 2011-04-20 | 重庆康明斯发动机有限公司 | Tightening machine checker |
| CN103245460A (en) * | 2013-05-13 | 2013-08-14 | 内蒙古自治区计量测试研究院 | Calibrating device for large-torque hydraulic wrench |
| CN103245460B (en) * | 2013-05-13 | 2015-10-07 | 内蒙古自治区计量测试研究院 | A kind of calibrating installation of large-torque hydraulic wrench |
| CN107941419A (en) * | 2017-02-19 | 2018-04-20 | 郑州东辰科技有限公司 | Torque spanner calibrating installation |
| CN107632763A (en) * | 2017-09-13 | 2018-01-26 | 拜尔液压动力（武汉）股份有限公司 | Hydraulic spanner digital management system and method |
| CN107632763B (en) * | 2017-09-13 | 2020-03-13 | 拜尔液压动力（武汉）股份有限公司 | Digital management system and method for hydraulic wrench |
| CN112629751A (en) * | 2021-02-24 | 2021-04-09 | 陕西东方航空仪表有限责任公司 | Hydraulic wrench calibrating instrument with reaction arm angle adjusting function |
| CN114279629A (en) * | 2021-12-30 | 2022-04-05 | 陕西东方航空仪表有限责任公司 | Hydraulic torque wrench calibrating device |
| CN114279628A (en) * | 2021-12-30 | 2022-04-05 | 陕西东方航空仪表有限责任公司 | Reaction arm assembly for hydraulic torque wrench calibrators |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100616 |