CN103091010B - Dynamometer - Google Patents
Dynamometer Download PDFInfo
- Publication number
- CN103091010B CN103091010B CN201310042158.0A CN201310042158A CN103091010B CN 103091010 B CN103091010 B CN 103091010B CN 201310042158 A CN201310042158 A CN 201310042158A CN 103091010 B CN103091010 B CN 103091010B
- Authority
- CN
- China
- Prior art keywords
- hook
- plate
- base plate
- dynamometer
- resistance strain
- 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.)
- Expired - Fee Related
Links
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
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 strain gage testing principle design.
Background technology
Chinese patent CN2802483Y discloses a kind of electronic force measuring instrument, it is positioned with dynamometer spring at the left end of housing cavity, the inner side of housing cavity right-hand member is provided with travelling gear, the rotating shaft of strong size variable potentiometer or variable condenser is set with in the centre bore of travelling gear, the driving rack be meshed with travelling gear is provided with in housing cavity on the upside of travelling gear, one end of this driving rack is connected with dynamometer spring, its other end is placed in outside housing right-hand member and is also provided with dynamometry drag hook thereon, the downside outer wall of housing is positioned with a shell, force direction variable potentiometer or force direction variable condenser is positioned with in this shell, the rotating shaft of this force direction variable potentiometer or force direction variable condenser is by shell and connect a firm banking in its end.But the force rate that this electronic force measuring instrument is measured on vertical direction is more difficult, the large precision of measure error is difficult to ensure.
Disclose a kind of rotatable cantilever force gauge at patent CN2476009Y, it is the power that sensing chip by being arranged on force plate both sides records hawser and applies force plate.But this dynamometer only has a force plate, its certainty of measurement is difficult to ensure, installs also inconvenient in implementation process.
Existing dynamometer measure error is large, function singleness; Resistance strain gage is general all outside exposed, higher to environmental requirement.
Summary of the invention
The deficiency existed for avoiding prior art, overcomes its complex structure, installs inconvenience, and the large precision of measure error is difficult to the problem ensured, the present invention proposes a kind of dynamometer.
The technical solution adopted for the present invention to solve the technical problems is: dynamometer entirety is polygon prismatic structure, vertical direction is fixedly mounted in bracing frame, its feature is to comprise cover plate, stay cord, base plate, running roller, drawing plate, resistance strain gage, hook, lasso, axis is fixed with running roller in described base plate inner plane bottom, the transverse axis both sides vertical with axis are separately installed with running roller, stay cord and lower roll wheel are connected, and successively with the running roller on both sides on transverse axis, drawing plate connects, cover plate and base plate fasten by screw fixing and locking, stay cord through be arranged on the lasso of cover plate with base plate center tip stretch out with hook be connected, resistance strain gage is fitted on drawing plate, measures the deflection of drawing plate.
The left and right bipod of described hook is mutually vertical is miter angle with axis 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 drawing plate centre, and pastes at the two sides of drawing plate symmetry dress.
Beneficial effect
Dynamometer of the present invention is made up of cover plate, base plate, stay cord, running roller, drawing plate, resistance strain gage, hook and lasso, and cover plate and base plate are fastened and fixedly mounted by screw, and fix the running roller be arranged on base plate simultaneously, avoid running roller to move.Resistance strain gage is fitted in drawing plate centre, and pastes with fashionable dress on drawing plate two sides, measures the deflection of drawing plate.The left and right bipod of hook is mutually vertical and with axis vertical direction separately in miter angle, the power suffered by stay cord has been carried out disperseing average; Four drawing plates be connected with stay cord strain due to the effect being subject to power, resistance strain gage thereon records the size of strain, then the value of all resistance strain gages is averaged calculating, to average the value of thrust of the stay cord obtaining the right and left, the value of power suffered by the hook finally obtaining top part.Dynamometer is applicable to the pulling force measuring object in the vertical direction, and measures simple and convenient.
Accompanying drawing explanation
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 measuring 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. screwed hole 9. links up with 10. lasso 11. bracing frame 12. angular contact ball bearing 13. sleeve 14. race rings
Detailed description of the invention
The present embodiment is a kind of dynamometer.
See Fig. 1, Fig. 2, Fig. 3, dynamometer entirety is polygon prismatic structure, and vertical direction is fixedly mounted in bracing frame.Dynamometer is made up of cover plate 1, stay cord 3, screw 2, base plate 4, running roller 5, drawing plate 6, resistance strain gage 7, screwed hole 8, hook 9, lasso 10; The axis, base plate 4 inner plane bottom of dynamometer is fixed with running roller 5, the transverse axis both sides vertical with axis are separately installed with running roller, stay cord 3 and lower roll wheel 5 are connected, and be connected with the running roller on both sides on transverse axis, drawing plate successively, cover plate 1 and base plate 4 fasten by screw fixing and locking, and stay cord 3 stretches out be connected with hook 9 through being arranged on the lasso of cover plate 1 with base plate 4 center tip; 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 is mutually vertical is miter angle with axis 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 two sides of drawing plate 6 symmetry dress.
Installation process
First running roller 5 is arranged on the base plate 4 inner plane bottom of dynamometer, and other running roller and drawing plate 6 are installed; Cover plate 1 and base plate 4 fasten, and also make the running roller 5 be arranged on base plate 4 fix, avoid running roller 5 to move while cover plate 1 is fixing by screw 2 and the screwed hole 8 of base plate 4.
The resistance strain gage 7 of dynamometer is fitted in the centre in two faces on drawing plate 6, and the thickness of drawing plate 6 is between 0.5mm to 2mm, and the physical dimension of drawing plate 6 is identical, and respectively there is a connecting hole at two ends; Stay cord 3 is first connected with bottom running roller 5 and keeps fixing, then be connected with the running roller 5 of the right and left and the two ends of drawing plate 6 successively, the stay cord 3 of last on the left side, three parts in the right and top is fixed together by hook 9, and the left and right bipod of hook 9 is mutually vertical and with axis separately in miter angle.Stay cord through be arranged on the lasso of cover plate with base plate center tip stretch out with hook be connected.
Dynamometer is fixedly mounted on bracing frame 11, and angular contact ball bearing 12 and sleeve 13 are coaxially 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, then the stay cord 3 of top part is subject to the effect of power, the stay cord 3 of the right and left part is also subject to the effect of power, and the power suffered by the stay cord 3 of top part has been carried out disperseing on average.Four drawing plates 6 at two ends, left and right strain due to the effect being subject to power, resistance strain gage 7 on drawing plate 6 records the size of strain, then, be averaged to the value of all resistance strain gages 7 and calculate the value of thrust of the stay cord 3 obtaining the right and left of averaging, the stay cord 3 finally obtaining top part is subject to value stressed on the value of power and bracing frame.
Dynamometer is applicable to the pulling force measuring object in the vertical direction, and measures simple and convenient, and the precision of measurement is higher.
Claims (4)
1. a dynamometer, entirety is polygon prismatic structure, vertical direction is fixedly mounted in bracing frame, comprise drawing plate, resistance strain gage, resistance strain gage is fitted on drawing plate, measure the deflection of drawing plate, it is characterized in that: also comprise cover plate, stay cord, base plate, running roller, hook, lasso, axis is fixed with running roller in described base plate inner plane bottom, the transverse axis both sides vertical with axis are separately installed with running roller, stay cord and lower roll wheel are connected, and successively with the running roller on both sides on transverse axis, drawing plate connects, cover plate and base plate fasten by screw fixing and locking, stay cord through be arranged on the lasso of cover plate with base plate center tip stretch out with hook be connected.
2. dynamometer according to claim 1, is characterized in that: the left and right bipod of described hook is mutually vertical is miter angle with axis separately.
3. dynamometer according to claim 1, 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 drawing plate centre, and pastes at the two sides of drawing plate symmetry dress.
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 CN103091010A (en) | 2013-05-08 |
| CN103091010B true 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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (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 |
| EP2707683A1 (en) * | 2011-05-10 | 2014-03-19 | 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 |
| CN102706491B (en) * | 2012-05-25 | 2014-03-26 | 南昌航空大学 | Miniature resistance strain-type tensile force sensor |
-
2013
- 2013-02-04 CN CN201310042158.0A patent/CN103091010B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103091010A (en) | 2013-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107621247B (en) | Online intelligent measuring device for inner and outer curvature radii of plate rolled by plate rolling machine | |
| CN102426085A (en) | Device and method for testing contact rigidity of spherical surface-rotary surface combining surface | |
| CN102865958B (en) | Torque sensor | |
| CN103091010B (en) | Dynamometer | |
| KR101444663B1 (en) | Backlash and stiffness measuring apparatus in an actuator | |
| CN102998254A (en) | Micro friction force measuring device | |
| CN202974526U (en) | Static torque detection device | |
| CN202101810U (en) | Tensile test device used for comparing calibration of stress sensor | |
| TWI659200B (en) | Force measurement system for sports equipment | |
| CN101907540B (en) | Testing method for axial prestress and unequal rigidity of gyroscopic instrument bearing | |
| CN207600339U (en) | A kind of novel driven wheel of differential pitch circle bounce gauge | |
| CN102878937A (en) | Integrated displacement and angle sensor with fiber Bragg gratings | |
| CN201876243U (en) | Digital display fillet radius measurer for heavy castings and forgings | |
| CN202869443U (en) | Integrated displacement and rotation angle sensor with fiber Bragg gratings | |
| CN203534742U (en) | Integrated pumping well polished rod axial force and torque sensor | |
| CN202836419U (en) | Device for measuring axial sizes of convex shoulders inside workpiece hole | |
| CN110987243A (en) | F-shaped elastic force sensor based on lever principle | |
| CN206740105U (en) | A kind of double spherical end surface taper roller length detection instruments | |
| CN202119379U (en) | Inspecting device of symmetry of key groove | |
| CN108267118A (en) | A kind of strain-type intelligent inclinometer | |
| CN204575068U (en) | A kind of device measuring slope leveling degree and the gradient | |
| CN207991524U (en) | A kind of strain-type intelligent inclinometer | |
| CN207556401U (en) | Go-no go gauge testing agency | |
| CN206504820U (en) | A kind of three-dimensional arrangement device for measuring force | |
| CN211953995U (en) | Fixed-section inner star wheel outer spherical curvature gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20160204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |