CN102735436B - Torque calibrator for torque wrench - Google Patents
Torque calibrator for torque wrench Download PDFInfo
- Publication number
- CN102735436B CN102735436B CN201210219330.0A CN201210219330A CN102735436B CN 102735436 B CN102735436 B CN 102735436B CN 201210219330 A CN201210219330 A CN 201210219330A CN 102735436 B CN102735436 B CN 102735436B
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- spanner
- catch bar
- torque
- slide block
- guide rail
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention relates to a torque calibrator for a torque wrench. The problems of low working efficiency and measuring accuracy of the conventional torque calibrator are solved. The torque calibrator comprises a bottom plate, a mechanical auxiliary force adding mechanism, a measuring and executing mechanism and a data display mechanism, wherein the mechanical auxiliary force adding mechanism and the measuring and executing mechanism are arranged on the bottom plate; and the measuring and executing mechanism is connected with the data display mechanism. The torque calibrator is characterized in that a wrench push rod position adjustment unit is arranged in the mechanical auxiliary force adding mechanism. By the torque calibrator, the defects in the prior art are overcome, calibration time is effectively shortened, the measuring accuracy is enhanced, and the torque of the torque wrench is quickly calibrated.
Description
Technical field
The present invention relates to a kind of torque calibration instrument, what be particularly useful for torque spanner moment of torsion is quickly calibrated, belongs to detection technique field.
Background technology
Torque spanner is a kind of instrument conventional in machine-building and maintenance process, in order to ensure the accurate reliability of torque spanner torque value, needs regularly to use torque calibrator calibrate torque spanner.
As shown in Figure 1, existing torque calibrator comprises base plate, mechanical assistance boosting mechanism, measures topworks and data indication mechanism.Wherein mechanical assistance boosting mechanism is made up of afterburning handwheel, leading screw, leading screw bearing, screw slider, force application arm, force application arm slide block and spanner catch bar, afterburning handwheel is connected with leading screw, leading screw is fixed on base plate by the leading screw bearing at two ends, screw slider is sleeved on the outside of leading screw, both composition thread transmissions, force application arm and screw slider assemble, and force application arm slide block and force application arm are equipped with, and fixedly mount spanner catch bar on force application arm slide block; Measure topworks and comprise torque sensor and rotating shaft, torque sensor is fixedly mounted in rotating shaft; Data indication mechanism is connected with torque sensor.
As shown in Figure 2, the operation steps of existing torque calibrator is: be first installed on torque sensor by the square tenon of torque spanner, and according to the good force application arm slide position of torque spanner length adjustment; Then shake afterburning handwheel, drive the screw turns be arranged on leading screw bearing, screw slider is subjected to displacement with the rotation of leading screw, drives force application arm to rotate around the axis simultaneously; When spanner catch bar contacts with the afterbody of torque spanner, spanner catch bar is to torque spanner applied thrust, and the moment that thrust produces is passed to data indication mechanism by torque sensor; Contrast finally by the torque value indicated torque spanner and regulator measured value judges the working condition of torque spanner.
Existing torque calibrator is at the initial time calibrated torque spanner, spacing distance L is there is between the afterbody of dial torque wrench and spanner catch bar, therefore can not be afterburning to spanner at once, need shake afterburning handwheel makes spanner catch bar close gradually to the afterbody of torque spanner, the longer non-productive work time will be consumed like this, be unfavorable for the quickly calibrated of torque spanner moment of torsion, and there is the unexpected change of afterburning handwheel moment in the process, negative effect is caused to the accuracy of measurement data.
Summary of the invention
The object of the invention is to the drawback for prior art, provide that a kind of structure is simple, easy to operate, stable performance, effectively can improve the torque calibrator for torque wrench of torque spanner calibration accuracy and work efficiency.
Problem of the present invention realizes with following technical proposals:
A kind of torque calibrator for torque wrench, it comprises base plate, mechanical assistance boosting mechanism, measures topworks and data indication mechanism, described mechanical assistance boosting mechanism and measurement topworks are installed on base plate, described measurement topworks is connected with data indication mechanism, its special feature is, it adds spanner catch bar position adjustment unit in mechanical assistance boosting mechanism.
Above-mentioned torque calibrator for torque wrench, described spanner catch bar position adjustment unit comprises spanner catch bar, spanner catch bar slide block and spanner catch bar slide block guide rail, described spanner catch bar is fixedly mounted on above spanner catch bar slide block, spanner catch bar is made up of spanner catch bar housing, set lever and Compress Spring, described set lever and Compress Spring are sleeved on spanner catch bar case inside, spring retainer boss is provided with in the middle part of set lever, arrange dead bolt in the lower end of set lever, described lock bolt structure mates with spanner catch bar slide block guide rail.
Above-mentioned torque calibrator for torque wrench, described spanner catch bar slide block and spanner catch bar slide block guide rail are equipped with, and spanner catch bar slide block is provided with spanner catch bar dead bolt passing hole.
Above-mentioned torque calibrator for torque wrench, described spanner catch bar slide block guide rail bottom surface is fixed in mechanical assistance boosting mechanism counter element, and the upper surface of spanner catch bar slide block guide rail is rack structure.
The present invention adds spanner catch bar slide block guide rail on the basis of existing torque calibrator mechanical assistance boosting mechanism, spanner catch bar slide block, spanner catch bar and set lever, by the adjustment of the control realization spanner catch bar position to set lever, the spacing distance L between torque spanner calibration initial time dial torque wrench afterbody and spanner catch bar is eliminated with this, torsional moment can be applied to spanner at once after the afterburning handwheel of shake, avoid because afterburning handwheel moment changes suddenly the negative effect caused measurement data accuracy, add the accuracy of calibration, shorten the alignment time simultaneously, what achieve torque spanner moment of torsion is quickly calibrated, compensate for the defect that prior art exists.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is existing torque calibrator structural representation;
Fig. 2 is existing torque calibrator work original state schematic diagram;
Fig. 3 is structural representation of the present invention;
Fig. 4 is spanner catch bar position adjustment unit sectional structure chart;
Fig. 5 is course of work schematic diagram of the present invention.
In figure, each label is: 1, rotating shaft, 2, torque sensor, 3, force application arm, 4, force application arm slide block, 5, spanner catch bar, 6, afterburning handwheel, 7, leading screw, 8, leading screw bearing, 9, screw slider, 10, base plate, 11, torque spanner, 12, spanner catch bar slide block guide rail, 13, spanner catch bar slide block, 14, set lever, 14-1, dead bolt, 14-2, spring retainer boss, 15, Compress Spring, 16, spanner catch bar housing, 17, data indication mechanism.
Embodiment
Referring to Fig. 3 ~ Fig. 5, the present invention includes base plate 10, mechanical assistance boosting mechanism, measure topworks and data indication mechanism 17.Described mechanical assistance boosting mechanism is made up of afterburning handwheel 6, leading screw 7, leading screw bearing 8, screw slider 9, force application arm 3, force application arm slide block 4 and spanner catch bar 5, described afterburning handwheel 6 is connected with leading screw 7, described leading screw 7 is fixed on base plate 10 by the leading screw bearing 8 at two ends, screw slider 9 is sleeved on the outside of leading screw 7, both composition thread transmissions, force application arm 3 and screw slider 9 assemble, and force application arm slide block 4 is equipped with force application arm 3; Described measurement topworks comprises torque sensor and rotating shaft, and torque sensor is fixedly mounted in rotating shaft; Data indication mechanism 17 is connected with torque sensor.Spanner catch bar position adjustment unit is added in mechanical assistance boosting mechanism, described spanner catch bar position adjustment unit comprises spanner catch bar 5, spanner catch bar slide block 13 and spanner catch bar slide block guide rail 12, described spanner catch bar 5 is fixedly mounted on above spanner catch bar slide block 13, spanner catch bar 5 is by spanner catch bar housing 16, set lever 14 and Compress Spring 15 form, described set lever 14 and Compress Spring 15 are sleeved on inside spanner catch bar housing 16, spring retainer boss 14-2 is provided with in the middle part of set lever 14, in the lower end of set lever 14, dead bolt 14-1 is set, described dead bolt 14-1 structure is mated with spanner catch bar slide block guide rail 12, described spanner catch bar slide block 13 is sleeved on spanner catch bar slide block guide rail 12, and spanner catch bar slide block 13 is provided with spanner catch bar dead bolt 14-1 passing hole, described spanner catch bar slide block guide rail 12 bottom surface is fixed in mechanical assistance boosting mechanism counter element, and the upper surface of spanner catch bar slide block guide rail 12 is rack structure.
Referring to Fig. 5, the course of work of the present invention is: when calibrating dial torque wrench, the square tenon of dial torque wrench 11 is installed on torque sensor 2, simultaneously according to the position of the length adjustment force application arm slide block 4 of torque spanner 11, make torque spanner afterbody corresponding with the spanner catch bar 5 be fixed on above force application arm slide block 4, at this moment there is spacing distance L between the afterbody of torque spanner 11 and spanner catch bar 5.Upwards mention set lever 14, dead bolt 14-1 and spanner catch bar slide block guide rail 12 upper surface tooth bar are departed from, remove locking relation between the two, move the afterbody of spanner catch bar slide block 13 to torque spanner 11 simultaneously, put down set lever 14, dead bolt 14-1 and spanner catch bar slide block guide rail 12 upper surface tooth bar are coincide, spanner catch bar 5 is fixed to herein.Then by the afterburning handwheel 6 of shake, reinforcing can be carried out to torque spanner afterbody immediately.Read the data that data indication mechanism 17 is measured, contrast according to examination criteria and torque spanner torque value, thus draw corresponding test result, complete the calibration of dial torque wrench.
Claims (1)
1. a torque calibrator for torque wrench, it comprises base plate (10), mechanical assistance boosting mechanism, measures topworks and data indication mechanism (17), described mechanical assistance boosting mechanism and measurement topworks are installed on base plate (10), described measurement topworks is connected with data indication mechanism (17), it is characterized in that, in mechanical assistance boosting mechanism, set up spanner catch bar position adjustment unit;
Described spanner catch bar position adjustment unit comprises spanner catch bar (5), spanner catch bar slide block (13) and spanner catch bar slide block guide rail (12), described spanner catch bar (5) is fixedly mounted on above spanner catch bar slide block (13), spanner catch bar (5) is by spanner catch bar housing (16), set lever (14) and Compress Spring (15) composition, described set lever (14) and Compress Spring (15) are sleeved on spanner catch bar housing (16) inner side, spring retainer boss (14-2) is provided with at set lever (14) middle part, in the lower end of set lever (14), dead bolt (14-1) is set, described dead bolt (14-1) structure is mated with spanner catch bar slide block guide rail (12),
Described spanner catch bar slide block guide rail (12) bottom surface is fixed in mechanical assistance boosting mechanism counter element, and the upper surface of spanner catch bar slide block guide rail (12) is rack structure;
Described spanner catch bar slide block (13) is equipped with spanner catch bar slide block guide rail (12), and spanner catch bar slide block (13) is provided with spanner catch bar dead bolt (14-1) passing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219330.0A CN102735436B (en) | 2012-06-29 | 2012-06-29 | Torque calibrator for torque wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219330.0A CN102735436B (en) | 2012-06-29 | 2012-06-29 | Torque calibrator for torque wrench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102735436A CN102735436A (en) | 2012-10-17 |
| CN102735436B true CN102735436B (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210219330.0A Active CN102735436B (en) | 2012-06-29 | 2012-06-29 | Torque calibrator for torque wrench |
Country Status (1)
| Country | Link |
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| CN (1) | CN102735436B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033313A (en) * | 2012-12-18 | 2013-04-10 | 上海出入境检验检疫局机电产品检测技术中心 | Electrodeless regulative dynamometer torsion calibrating device |
| CN105571776B (en) * | 2015-12-22 | 2019-03-01 | 中国航天空气动力技术研究院 | Electronic-manual torque spanner verifies platform mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87208350U (en) * | 1987-05-20 | 1988-01-27 | 第二汽车制造厂 | Torque spanner calibrator |
| CN2833545Y (en) * | 2005-10-27 | 2006-11-01 | 扬动股份有限公司 | Constant torque wrench calibrator |
| CN101520357A (en) * | 2008-02-29 | 2009-09-02 | 爱德华·威尔有限责任两合公司 | Operating device for testing torque wrenches |
| CN201788056U (en) * | 2010-08-23 | 2011-04-06 | 浙江吉利汽车有限公司 | Torsion calibrator for open spanners |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008020043A1 (en) * | 2008-04-21 | 2009-10-22 | Richard Abr. Herder Kg | Method for calibrating a torque wrench |
-
2012
- 2012-06-29 CN CN201210219330.0A patent/CN102735436B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87208350U (en) * | 1987-05-20 | 1988-01-27 | 第二汽车制造厂 | Torque spanner calibrator |
| CN2833545Y (en) * | 2005-10-27 | 2006-11-01 | 扬动股份有限公司 | Constant torque wrench calibrator |
| CN101520357A (en) * | 2008-02-29 | 2009-09-02 | 爱德华·威尔有限责任两合公司 | Operating device for testing torque wrenches |
| CN201788056U (en) * | 2010-08-23 | 2011-04-06 | 浙江吉利汽车有限公司 | Torsion calibrator for open spanners |
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| Publication number | Publication date |
|---|---|
| CN102735436A (en) | 2012-10-17 |
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Effective date of registration: 20191226 Address after: 314200 north side of Rongrong Road, east side of Pingshan Avenue, Pinghu Economic and Technological Development Zone, Jiaxing City, Zhejiang Province Patentee after: Pinghu branch of Great Wall Motor Co., Ltd Address before: 071000 No. 2266 Chaoyang South Street, Hebei, Baoding Patentee before: Changcheng Automobile Co., Ltd. |
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| TR01 | Transfer of patent right |