CN103091010A - Dynamometer - Google Patents
Dynamometer Download PDFInfo
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- CN103091010A CN103091010A CN2013100421580A CN201310042158A CN103091010A CN 103091010 A CN103091010 A CN 103091010A CN 2013100421580 A CN2013100421580 A CN 2013100421580A CN 201310042158 A CN201310042158 A CN 201310042158A CN 103091010 A CN103091010 A CN 103091010A
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- hook
- plate
- base plate
- dynamometer
- resistance strain
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Abstract
The invention discloses a dynamometer which is composed of a cover plate, a base plate, drawing ropes, a rolling wheel, drawing plates, resistance strain gauges and a hook. The cover plate covers the base plate and the cover plate and the base plate are fixedly mounted through screws, the rolling wheel mounted on the base plate is fixed to prevent the rolling wheel from sliding, the resistance strain gauges are attached to the central portions of the drawing plates and are attached to two faces of each of the drawing plates at the same time to measure the amount of deformation of the drawing plates, the left leg of the hook is perpendicular to the right leg of the hook, the left leg and the right leg of the hook are respectively in a 45-degree angle with a central axis of the hook on the vertical direction, burdened drawing force is dispersed evenly by the left leg and the right leg of the hook, the four drawing plates connected with the drawing ropes are strained because of the action of force, the resistance strain gauges arranged on the four drawing plates measure the size of the strain, average calculation to the value of all the resistance strain gauges is conducted, an average value is acquired to obtain the tension value of the drawing ropes on the left side and the right side, and finally the force value of the hook on the upper side part is obtained. The dynamometer is fixedly mounted in a support, applicable to measuring the tension of objects on the vertical direction, and convenient to measure.
Description
Technical field
The present invention relates to a kind of device for measuring force, specifically, relate to a kind of dynamometer according to the strain gage testing principle design.
Background technology
Chinese patent CN2802483Y discloses a kind of electronic force measuring instrument, it is that left end at the housing inner chamber is positioned with dynamometer spring, inboard at housing inner chamber right-hand member is provided with transmission gear, the rotating shaft of the strong variable size potentiometer of suit or variable condenser in the center pit of transmission gear, be provided with the driving rack that is meshed with transmission gear in the housing inner chamber of transmission gear upside, one end of this driving rack is connected with dynamometer spring, its other end is placed in the housing right-hand member outside and is provided with the dynamometry drag hook thereon, be positioned with a shell on the downside outer wall of housing, be positioned with force direction variable potentiometer or force direction variable condenser in this shell, the rotating shaft of this force direction variable potentiometer or force direction variable condenser connects a firm banking by shell and in its end.But the force rate that this electronic force measuring instrument is measured on vertical direction is more difficult, and the large precision of measuring error is difficult to guarantee.
Disclose a kind of rotatable cantilever force gauge at patent CN2476009Y, it is to record by the sensing chip that is arranged on force plate both sides the power that hawser applies force plate.But this dynamometer only has a force plate, and its measuring accuracy is difficult to guarantee, installs also inconvenient in implementation process.
Existing dynamometer measuring error is large, function singleness; Resistance strain gage is generally all outside exposed, and is higher to environmental requirement.
Summary of the invention
Be the deficiency of avoiding prior art to exist, overcome its complex structure, inconvenience is installed, the problem that the large precision of measuring error is difficult to guarantee, the present invention proposes a kind of dynamometer.
the technical solution adopted for the present invention to solve the technical problems is: dynamometer is whole is polygon prismatic structure, vertical direction is fixedly mounted in bracing frame, its characteristics are to comprise cover plate, stay cord, base plate, running roller, drawing plate, resistance strain gage, hook, lasso, described base plate inner plane bottom is fixed with running roller on the axis, vertical with axis transverse axis both sides are separately installed with running roller, stay cord and lower roll wheel are connected, and successively with transverse axis on the running roller on both sides, drawing plate connects, cover plate and base plate fasten by the screw fixing and locking, stay cord passes and is arranged on cover plate and is connected the lasso on top with base plate and stretches out with hook and be connected, resistance strain gage is fitted on drawing plate, measures the deflection of drawing plate.
The left and right bipod of described hook vertical and axis mutually is miter angle separately.
Described drawing plate is rectangular structure, and respectively there is a connecting hole at two ends, and the thickness of drawing plate is between 0.5mm-2mm, and the physical dimension of four drawing plates is identical.
Described resistance strain gage fits in the drawing plate centre, and pastes at the symmetrical dress in the two sides of drawing plate.
Beneficial effect
Dynamometer of the present invention is comprised of cover plate, base plate, stay cord, running roller, drawing plate, resistance strain gage, hook and lasso, and cover plate and base plate fasten and fixedly mount by screw, and simultaneously the running roller that is arranged on base plate are fixed, and avoid running roller to move.Resistance strain gage is fitted in the drawing plate centre, and pastes with fashionable dress on the drawing plate two sides, measures the deflection of drawing plate.The left and right bipod of hook is vertically mutual and be separately miter angle with the axis vertical direction, and the power that stay cord is suffered has been carried out disperseing average; Four drawing plates that are connected with stay cord are due to the effect generation strain that is subject to power, resistance strain gage thereon records the size of strain, then the value of all resistance strain gages averaged calculating, the average value of thrust of the stay cord that obtains the right and left obtains the value of the suffered power of hook of top part at last.Dynamometer is applicable to measure the pulling force of object in the vertical direction, and measures simple and convenient.
Description of drawings
Below in conjunction with drawings and embodiments, a kind of dynamometer of the present invention is described in further detail.
Fig. 1 is the schematic diagram of dynamometer of the present invention.
Fig. 2 is dynamometer structural representation of the present invention.
Fig. 3 is that dynamometer of the present invention is arranged on the schematic diagram of measuring the bracing frame position.
In figure:
1. cover plate 2. screw 3. stay cord 4. base plate 5. running roller 6. drawing plate 7. resistance strain gage 8. threaded holes 9. are linked up with 10. lasso 11. bracing frame 12. angular contact ball bearing 13. sleeve 14. race rings
Embodiment
The present embodiment is a kind of dynamometer.
Referring to Fig. 1, Fig. 2, Fig. 3, dynamometer integral body is polygon prismatic structure, and vertical direction is fixedly mounted in bracing frame.Dynamometer is comprised of cover plate 1, stay cord 3, screw 2, base plate 4, running roller 5, drawing plate 6, resistance strain gage 7, threaded hole 8, hook 9, lasso 10; Be fixed with running roller 5 on base plate 4 axis, inner plane bottom of dynamometer, vertical with axis transverse axis both sides are separately installed with running roller, stay cord 3 is connected with lower roll wheel 5, and be connected with running roller, the drawing plate on both sides on transverse axis successively, cover plate 1 fastens by the screw fixing and locking with base plate 4, stay cord 3 pass be arranged on cover plate 1 are connected with base plate in the middle of the lasso on top stretch out with hook 9 and be connected; Resistance strain gage 7 is fitted on drawing plate 6, measures the deflection of drawing plate 6.
The left and right bipod of dynamometer hook 9 vertical and axis mutually is miter angle separately.Drawing plate 6 is rectangular structure, and respectively there is a connecting hole at two ends, and the thickness of drawing plate 6 is between 0.5mm-2mm, and the physical dimension of four drawing plates is identical.
Resistance strain gage 7 fits in the centre of drawing plate 6, and pastes at the symmetrical dress in the two sides of drawing plate 6.
Installation process
At first running roller 5 is arranged on the base plate 4 inner plane bottoms of dynamometer, and other running roller and drawing plate 6 are installed; Cover plate 1 fastens with base plate 4, and cover plate 1 also makes the running roller 5 that is arranged on base plate 4 fixing in the time of fixing by screw 2 and the threaded hole 8 of base plate 4, avoids running roller 5 to move.
The resistance strain gage 7 of dynamometer is fitted in the centre of two faces on drawing plate 6, and the thickness of drawing plate 6 at 0.5mm between 2mm, the physical dimension of drawing plate 6 is identical, respectively there is a connecting hole at two ends; Stay cord 3 first is connected with bottom running roller 5 and keeps fixing, then be connected with the two ends that the running roller 5 of the right and left is connected with drawing plate successively, the stay cord 3 of last on the left side, three parts in the right and top is fixed together by linking up with 9, and the left and right bipod of hook 9 is vertically mutual and be separately miter angle with the axis.Stay cord passes and is arranged on cover plate and is connected the lasso on top with base plate and stretches out with hook and be connected.
Dynamometer is fixedly mounted on bracing frame 11, and angular contact ball bearing 12 and sleeve 13 are coaxial to be connected on race ring 14.When sleeve 13 output torque, moment of torsion is delivered on race ring 14 by angular contact ball bearing 12, the detrusion that race ring 14 is directly proportional to moment of torsion is passed on bracing frame 11, the stay cord 3 of top part is subject to the effect of power, the stay cord 3 of the right and left part also is subject to the effect of power, and the power that the stay cord 3 of top part is suffered has been carried out disperseing average.Four drawing plates 6 at two ends, left and right are due to the effect generation strain that is subject to power, resistance strain gage 7 on drawing plate 6 records the size of strain, then, the value of all resistance strain gages 7 is averaged the value of thrust of the stay cord 3 that calculating averages obtains the right and left, the value that the stay cord 3 that obtains at last the top part is subject to power is value stressed on bracing frame.
Dynamometer is applicable to measure the pulling force of object in the vertical direction, and measures simple and conveniently, and the precision of measurement is higher.
Claims (4)
1. dynamometer, integral body is polygon prismatic structure, vertical direction is fixedly mounted in bracing frame, it is characterized in that: comprise cover plate, stay cord, base plate, running roller, drawing plate, resistance strain gage, hook, lasso, described base plate inner plane bottom is fixed with running roller on the axis, vertical with axis transverse axis both sides are separately installed with running roller, stay cord and lower roll wheel are connected, and successively with transverse axis on the running roller on both sides, drawing plate connects, cover plate and base plate fasten by the screw fixing and locking, stay cord passes and is arranged on cover plate and is connected the lasso on top with base plate and stretches out with hook and be connected, resistance strain gage is fitted on drawing plate, measures the deflection of drawing plate.
2. dynamometer according to claim 1 is characterized in that: the left and right bipod of described hook vertical and axis mutually is miter angle separately.
3. dynamometer according to claim 1, it is characterized in that: described drawing plate is rectangular structure, and respectively there is a connecting hole at two ends, and the thickness of drawing plate is between 0.5mm-2mm, and the physical dimension of four drawing plates is identical.
4. dynamometer according to claim 1 is characterized in that: described resistance strain gage fits in the drawing plate centre, and pastes at the symmetrical dress in the two sides of drawing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310042158.0A CN103091010B (en) | 2013-02-04 | 2013-02-04 | Dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310042158.0A CN103091010B (en) | 2013-02-04 | 2013-02-04 | Dynamometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103091010A true CN103091010A (en) | 2013-05-08 |
| CN103091010B CN103091010B (en) | 2015-04-29 |
Family
ID=48203859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310042158.0A Expired - Fee Related CN103091010B (en) | 2013-02-04 | 2013-02-04 | Dynamometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103091010B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487193A (en) * | 2013-09-26 | 2014-01-01 | 西安空间无线电技术研究所 | Rope force test device for space-borne annular reflector |
| CN113655729A (en) * | 2021-10-20 | 2021-11-16 | 北京创米智汇物联科技有限公司 | Control device, control method, control system, and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB645331A (en) * | 1944-06-19 | 1950-11-01 | Douglas Crisp Gall | Improvements in strain gauges and methods of and means for the production thereof |
| CN2476009Y (en) * | 2001-01-02 | 2002-02-06 | 大连理工大学 | Rotary cantilever force gauge |
| CN102419233A (en) * | 2011-12-14 | 2012-04-18 | 中国矿业大学 | Device and method for detecting tension of elliptic sleeve type steel wire rope |
| CN202453176U (en) * | 2011-11-25 | 2012-09-26 | 徐工集团工程机械股份有限公司 | Pulley rotation flexibility detecting device |
| CN102706491A (en) * | 2012-05-25 | 2012-10-03 | 南昌航空大学 | Miniature resistance strain-type tensile force sensor |
| WO2012152425A1 (en) * | 2011-05-10 | 2012-11-15 | Sms Tenzotherm Gmbh | Resistant strain gauge |
-
2013
- 2013-02-04 CN CN201310042158.0A patent/CN103091010B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB645331A (en) * | 1944-06-19 | 1950-11-01 | Douglas Crisp Gall | Improvements in strain gauges and methods of and means for the production thereof |
| CN2476009Y (en) * | 2001-01-02 | 2002-02-06 | 大连理工大学 | Rotary cantilever force gauge |
| WO2012152425A1 (en) * | 2011-05-10 | 2012-11-15 | Sms Tenzotherm Gmbh | Resistant strain gauge |
| CN202453176U (en) * | 2011-11-25 | 2012-09-26 | 徐工集团工程机械股份有限公司 | Pulley rotation flexibility detecting device |
| CN102419233A (en) * | 2011-12-14 | 2012-04-18 | 中国矿业大学 | Device and method for detecting tension of elliptic sleeve type steel wire rope |
| CN102706491A (en) * | 2012-05-25 | 2012-10-03 | 南昌航空大学 | Miniature resistance strain-type tensile force sensor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487193A (en) * | 2013-09-26 | 2014-01-01 | 西安空间无线电技术研究所 | Rope force test device for space-borne annular reflector |
| CN103487193B (en) * | 2013-09-26 | 2015-07-08 | 西安空间无线电技术研究所 | Rope force test device for space-borne annular reflector |
| CN113655729A (en) * | 2021-10-20 | 2021-11-16 | 北京创米智汇物联科技有限公司 | Control device, control method, control system, and storage medium |
| CN113655729B (en) * | 2021-10-20 | 2021-12-14 | 北京创米智汇物联科技有限公司 | Control device, control method, control system, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103091010B (en) | 2015-04-29 |
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Granted publication date: 20150429 Termination date: 20160204 |