CN103968983A - Output torque accurate measurement system and torque measurement method thereof - Google Patents

Output torque accurate measurement system and torque measurement method thereof Download PDF

Info

Publication number
CN103968983A
CN103968983A CN201410233567.3A CN201410233567A CN103968983A CN 103968983 A CN103968983 A CN 103968983A CN 201410233567 A CN201410233567 A CN 201410233567A CN 103968983 A CN103968983 A CN 103968983A
Authority
CN
China
Prior art keywords
speed reduction
reduction unit
motor
pressure sensor
torque
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.)
Granted
Application number
CN201410233567.3A
Other languages
Chinese (zh)
Other versions
CN103968983B (en
Inventor
赵洪
李迎
郝广平
陈春铭
郑海峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Ha Pu electrical technology Ltd
Original Assignee
Harbin Ha Pu Electrical Technology Ltd
Harbin University of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Harbin Ha Pu Electrical Technology Ltd, Harbin University of Science and Technology filed Critical Harbin Ha Pu Electrical Technology Ltd
Priority to CN201410233567.3A priority Critical patent/CN103968983B/en
Publication of CN103968983A publication Critical patent/CN103968983A/en
Application granted granted Critical
Publication of CN103968983B publication Critical patent/CN103968983B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention relates to an output torque accurate measurement system and a torque measurement method thereof. The method comprises the following steps: a stator coil (8) is installed inside a stator housing (12), the stator housing is fixed with a shell of a speed reducer (5), a rotor (9) is connected with a speed reducer input shaft (6) through a coupling (7); a speed reducer output shaft (18) is circumferentially fixed with an output coupling (1); the stator housing and the shell of the speed reducer form a rotation pair with a base (17) respectively through a back bearing (11) and a front bearing (2); both sides of the shell of the speed reducer are provided with a lever (13) and a balance weight lever (4); the lever is connected with a tension/pressure sensor (15) through a spherical hinge A (14); the tension/pressure sensor is connected with the base through a spherical hinge B (16); the balance weight lever is provided with a balance weight (3); and the back end of a motor is provided with a coded disk (10). The method is used for the accurate measurement device of motor speed reducer combination output torque.

Description

The method of output torque accurate measuring systems and torque measurement thereof
technical field:
the present invention relates to a kind of method of output torque accurate measuring systems and torque measurement thereof.
background technology:
the metering system that is applied at present motor reducer array output moment of torsion mainly contains two kinds: a kind of is traditional mechanical lever-type metering system; Another kind is to adopt torque sensor directly to measure moment of torsion.
the measurement of mechanical lever is that tested moment of torsion is converted to pressure by lever, measures the amount of this pressure by pull pressure sensor, then calculates torque value size by following formula.
 
in above formula :-tested moment of torsion
the acting force that-pull pressure sensor is measured
the arm of force of-the acting force that records
this measuring system is made up of rotor, reel cage (stator), base etc., and rotor, stator are installed on base by bearing, and freely swing by pendulum bearing.One power transmission arm is housed on the outer ring of stator, is delivered on tension-compression sensor by this power transmission arm retarding torque, and connecting piece on connecting piece and base on power transmission arm makes tension-compression sensor in two power bar states.By measuring the size of tension-compression sensor, can calculate measuring system torque value size.Manufacture machining precision and the two power bar positioning precisioies of this kind of metering system and mechanical lever and the edge of a knife have much relations.For improving the measuring accuracy of system, just need to improve the manufacture machining precision of mechanical lever and the edge of a knife, certainly will increase like this manufacture processing cost of equipment.
torque sensor can be divided into horizontal and two kinds of forms of disc type according to profile, for obtaining higher measuring accuracy, requires the installation accuracy of this kind of sensor high, because manufacturing cost is high, bringing a high price of torque sensor, and along with the raising of measuring accuracy, price increases a lot.Wherein horizontal sensor needs larger axial installation dimension, and the price of disc type sensor will be far above the horizontal sensor of identical measuring accuracy.Compared with pull pressure sensor, the in the situation that of equal measuring accuracy, the price of torque sensor will be far above the precision of pull pressure sensor.
existing application pull pressure sensor torque-measuring apparatus. measuring accuracy is high, and the radial force producing in energy offset measurement, but has applied flexible piece in this system, can produce relaxation, can not measure reactive torque, and structure is more complicated.
thickener Torque Measuring Device, can carry out moment of torsion demonstration in time according to the conversion of load, and effectively controls the running that turns rake, but this device should not be used for high-precision torque measurement, compared with the torque measuring method of mechanical lever-type, and complex structure.
summary of the invention:
the object of this invention is to provide a kind of method of output torque accurate measuring systems and torque measurement thereof.
above-mentioned object realizes by following technical scheme:
a kind of output torque accurate measuring systems, its composition comprises: the inner stator coil of installing of stator casing of motor, described stator casing and the shell of speed reduction unit are fixed, rotor is connected with described reducer input shaft by shaft coupling, described reducer output shaft is circumferentially fixing with output shaft coupling, the shell of described stator casing and described speed reduction unit is respectively by rear bearing and front bearing and base formation revolute pair, the shell both sides of described speed reduction unit have lever and weight linear meter, described lever is connected with pull pressure sensor by ball pivot A, described pull pressure sensor is connected with base by ball pivot B, described weight linear meter is installed counterweight, code-disc is installed in the rear end of described motor.
utilize above-mentioned output torque accurate measuring systems to carry out a method for torque measurement,
the first step, after described stator coil energising, described rotor produces and rotatablely moves and output torque;
second step, the rotation of described rotor, after described speed reduction unit speed change, is exported by described reducer output shaft, and described motor and described speed reduction unit rotate freely around axis;
the 3rd step after the moment of torsion that described motor produces increases by described speed reduction unit, forms drive source after the output of output shaft coupling;
the 4th step, record the line of described ball pivot A and described ball pivot B and described motor and described speed reduction unit be combined into revolving shaft between distance, the pulling force signal that pull pressure sensor described in gathering is born is also converted into after power, in conjunction with described distance, the output torque T after the motor described in obtaining and the combination of described speed reduction unit is:
(1);
in formula:
active line be positioned on the line of centres of ball pivot A and described ball pivot B;
for the moment of the axis of rotation generation of described counterweight to described speed reduction unit;
for the moment of torsion sum that in mechanism, each kinematic pair produces;
, and actual value determine by calibration system;
the 5th step, described calibration system is after torch measuring system assembles, described output shaft coupling is replaced to the scaling board with circular arc, standard test weight 2 is mounted on described scaling board by standard test weight 1, mounts the tensile relationship that various criterion counterweight weight and described pull pressure sensor bear to be:
in formula: the pulling force that the pull pressure sensor described in when only mounting counterweight 1 is born;
for the pulling force that mounts accurate counterweight 1 and pull pressure sensor is born during by standard test weight 2 simultaneously;
for the radius of circular arc, the axis of rotation that is centered close to speed reduction unit of circular arc;
for the gravity of standard test weight, its value is the quality of counterweight and the product of acceleration of gravity;
through type 2 and 3, can obtain:
the 6th step, from formula 4, the above the manufacturing accuracy, assembly precision of circular arc and the measuring accuracy of described pull pressure sensor of precision and described scaling board relevant, and it is irrelevant with processing and the assembly precision of other parts with this Size dependence, after the actual value of measuring, can be by this parameter read-in dynamometry software;
the computing formula that simultaneous formula 1 and formula 2 can obtain the output torque T after motor reducer combination is:
finally, after demarcation, formula 5 is write to Survey Software, hardware and software syndeton combines and forms the accurate measuring systems of output torque.
the method of described torque measurement, described scaling board is symmetrical structure, the center of circle of described circular arc is positioned at the symcenter of described scaling board, on the centre of gyration line that the motor described in described symcenter is positioned at and described speed reduction unit combine.
the method of described torque measurement, circular arc on the vertical line that the total centre of gravity of described standard test weight 1 and described standard test weight 2 passes through and described scaling board is tangent, and the position that described standard test weight 1 and described standard test weight 2 mount is on described motor axis of rotation and with respect to the opposite side of described pull pressure sensor.
beneficial effect:
the present invention will have the stator casing of motor and the motor of its inner stator coil of installing and speed reduction unit combination, again by realizing rotary pair between self-aligning bearing and base, tension-compression sensor adopts ball pivot to be connected with base and lever, there is installation accuracy and require lowly, install simple and convenient and do not affect measurement result advantage accurately; Recycle the function of whole hardware configuration in conjunction with software, less demanding to part and the assembly precision of composition lever, measuring accuracy depends on the precision of pull pressure sensor; Simple in structure, overall cost is low; Pull pressure sensor can be measured pressure and pressure, and this system can adapt to the torque measurement of forward and reverse direction; There is measuring system versatility high.
brief description of the drawings:
accompanying drawing 1: torch measuring system schematic diagram of mechanism.
accompanying drawing 2: the schematic diagram of mechanism of demarcation.
accompanying drawing 3: the schematic diagram of mechanism of demarcating when processing and assembly precision are low.
accompanying drawing 4: extension spring pre-pressing structure sketch.
accompanying drawing 5: stage clip pre-pressing structure sketch.
accompanying drawing 6: the structure diagram of motor reducer combination cantilever.
1. output shaft couplings in figure; 2. front bearing; 3. counterweight; 4. weight linear meter; 5. speed reduction unit; 6. reducer input shaft; 7. shaft coupling; 8. stator coil; 9. rotor; 10. code-disc; 11. rear bearings; 12. stator casings; 13. levers; 14. ball pivot A; 15. pull pressure sensor; 16. ball pivot B; 17. bases; 18. reducer output shafts; 19. scaling boards; 20. circular arcs; 21. standard test weights 1; 22. standard test weights 2; 23. bearings 1; 24. bearings 2; 25. extension springs; 26. stage clips.
embodiment:
embodiment 1:
a kind of output torque accurate measuring systems, its composition comprises: the inner stator coil (8) of installing of stator casing (12) of motor, the shell of described stator casing and speed reduction unit (5) is fixed, rotor (9) is connected with described reducer input shaft (6) by shaft coupling (7), described reducer output shaft (18) is circumferentially fixing with output shaft coupling (1), in the time that stator coil (8) is switched on, rotor (9) produces and rotatablely moves and output torque, the rotation of rotor is after the speed change of speed reduction unit (5), exported by described reducer output shaft (18), the shell of described stator casing (12) and described speed reduction unit (5) forms revolute pair by rear bearing (self-aligning bearing) (11) and front bearing (self-aligning bearing) (2) with base (17) respectively, the combination that realizes motor and speed reduction unit (5) can rotate freely around axis, the shell both sides of described speed reduction unit have lever (13) and weight linear meter (4), described lever is by ball pivot A(14) be connected with pull pressure sensor (15), described pull pressure sensor is by ball pivot B(16) be connected with base (17), the combination free that this structure can hinder motor and speed reduction unit (5) rotates, described weight linear meter is installed counterweight (3), and described counterweight (3) applies pretightning force to described pull pressure sensor (15), to eliminate the fit-up gap between part, after the moment of torsion that motor produces increases by speed reduction unit (5), via output shaft coupling (1) output, as the drive source of other function topworkies, code-disc (10) is installed in the rear end of described motor, can measure the real-time rotate speed of rotor with respect to stator by code-disc (10).
embodiment 2:
ask the output torque accurate measuring systems described in 1 according to embodiment, as shown in Figure 4, be with the difference of embodiment 1, realize the elimination of two ball pivot fit-up gaps that described pull pressure sensor (15) is formed by the pre-pressure of extension spring (25); Described extension spring (25) is fixed by described weight linear meter (4) and the shell of described speed reduction unit (5), the both sides of the speed reduction unit (5) described in described weight linear meter (4) lays respectively at described lever (13), after described pull pressure sensor (15) assembles, described extension spring (25) length that is stretched, the size of the pulling force that produces should make described ball pivot A(14) and described ball pivot B(16) the elimination of the fit-up gap at draw direction.
embodiment 3
ask the output torque accurate measuring systems described in 1 or 2 according to embodiment, as shown in Figure 5, be with the difference of embodiment 1 or 2, realize the elimination of two ball pivot fit-up gaps that described pull pressure sensor (15) is formed by the precompression of stage clip (26); Described stage clip (26) is positioned at the same side with described pull pressure sensor (15), after assembling, compressed and two ends are fixed with described lever (13) and described base (17) respectively, described stage clip (26) produces a pre-thrust to described lever (13), and the size of this power should make described ball pivot A(14) and described ball pivot B(16) the elimination of the fit-up gap at draw direction.
embodiment 4
ask the output torque accurate measuring systems described in 1 or 2 according to embodiment, as shown in Figure 6, be with the difference of embodiment 1, motor described in embodiment 1 and described speed reduction unit combine the frame mode that adopts free beam between rear and base as shown in Figure 1, be that motor reducer combination is positioned between rear bearing (11) and front bearing (2), and the combination of motor and speed reduction unit and the assembling between base adopt the frame mode of semi-girder in embodiment 4, i.e. bearing 1(23 as shown in Figure 6) and bearing 2(24) be positioned at the same side of motor reducer combination, this kind of frame mode makes described bearing 1(23) and described bearing 2(24) at a distance of nearer, can form two coaxial rotation pairs (23) and (24) by a part and speed reducer housing, have advantages of that workpiece accuracy is high, measured value is accurate.
embodiment 5:
utilize above-mentioned output torque accurate measuring systems to carry out a method for torque measurement,
the first step, after described stator coil (8) energising, described rotor (9) produces and rotatablely moves and output torque;
second step, the rotation of described rotor is after described speed reduction unit (5) speed change, and by described reducer output shaft (18) output, described motor and described speed reduction unit (5) rotate freely around axis;
the 3rd step, the moment of torsion that described motor produces forms drive source after increasing by described speed reduction unit (5) after output shaft coupling (1) output;
the 4th step, record described ball pivot A(14) and described ball pivot B(16) line and described motor and described speed reduction unit be combined into revolving shaft between distance, the pulling force signal that pull pressure sensor (15) described in gathering is born is also converted into after power, in conjunction with described distance, the output torque T after the motor described in obtaining and the combination of described speed reduction unit is:
in formula:
active line be positioned at ball pivot A(14) and described ball pivot B(16) line of centres on;
for the moment of the axis of rotation generation of described counterweight (3) to described speed reduction unit (5);
for the moment of torsion sum that in mechanism, each kinematic pair produces;
, actual value can not calculate acquisition by theory, because of processing and assembling there is error, and actual value and theoretical value also there is error, be reduction measuring error, above-mentioned three parameters should be determined by calibration system;
the 5th step, described calibration system is after torch measuring system assembles, described output shaft coupling (1) is replaced to the have circular arc scaling board (19) of (20), standard test weight 2(22) by standard test weight 1(21) to be mounted on described scaling board (19) upper, mount the tensile relationship that various criterion counterweight weight and described pull pressure sensor (15) bear to be:
in formula: the pulling force that the pull pressure sensor described in when only mounting counterweight 1 is born;
for the pulling force that mounts accurate counterweight 1 and pull pressure sensor is born during by standard test weight 2 simultaneously;
for the radius of circular arc, the axis of rotation that is centered close to speed reduction unit (5) of circular arc;
for the gravity of standard test weight, its value is the quality of counterweight and the product of acceleration of gravity;
through type 2 and 3, can obtain:
the 6th step, from formula 4, the above the manufacturing accuracy, assembly precision of circular arc (20) and the measuring accuracy of described pull pressure sensor (15) of precision and described scaling board (19) relevant, and it is irrelevant with processing and the assembly precision of other parts with this Size dependence, after the actual value of measuring, can be by this parameter read-in dynamometry software;
the computing formula that simultaneous formula 1 and formula 2 can obtain the output torque T after motor reducer combination is:
(5);
from this formula, the precision of this systematic survey gained moment of torsion is only relevant with the manufacturing accuracy of scaling board circular arc and the measuring accuracy of assembly precision and pull pressure sensor, even if occur that processing as shown in Figure 3 and the very large situation of rigging error also can not affect the measuring accuracy of this system, when occur along motor and speed reduction unit built-up shaft to rigging error time, what adopt because of the two ends of pull pressure sensor is the ball pivot of Three Degree Of Freedom, therefore this error can not exert an influence to the measurement result of pull pressure sensor, and calibrated value also can not be subject to the impact of this error;
finally, after demarcation, formula 5 is write to Survey Software, hardware and software syndeton combines and forms the accurate measuring systems of output torque.In the time bumping in transportation or measurement environment changes greatly, actual value likely change, can pass through said process calibration value again, then just relevant parameter writes Survey Software replacement raw parameter, to revise the measuring accuracy to output torque.
embodiment 6:
ask the method for the torque measurement described in 5 according to embodiment, described scaling board is symmetrical structure, the center of circle of described circular arc is positioned at the symcenter of described scaling board, on the centre of gyration line that the motor described in described symcenter is positioned at and described speed reduction unit combine.
embodiment 7:
according to the method for the torque measurement described in embodiment 5 or 6, circular arc (20) on the vertical line that the total centre of gravity of described standard test weight 1 and described standard test weight 2 passes through and described scaling board is tangent, and the position that described standard test weight 1 and described standard test weight 2 mount is on described motor axis of rotation and with respect to the opposite side of described pull pressure sensor.

Claims (4)

1. an output torque accurate measuring systems, its composition comprises: the inner stator coil (8) of installing of stator casing (12) of motor, it is characterized in that: the shell of described stator casing and speed reduction unit (5) is fixed, rotor (9) is connected with described reducer input shaft (6) by shaft coupling (7), described reducer output shaft (18) is circumferentially fixing with output shaft coupling (1), the shell of described stator casing and described speed reduction unit forms revolute pair by rear bearing (11) and front bearing (2) with base (17) respectively, the shell both sides of described speed reduction unit have lever (13) and weight linear meter (4), described lever is by ball pivot A(14) be connected with pull pressure sensor (15), described pull pressure sensor is by ball pivot B(16) be connected with base, described weight linear meter is installed counterweight (3), code-disc (10) is installed in the rear end of described motor.
2. utilize above-mentioned output torque accurate measuring systems to carry out a method for torque measurement, it is characterized in that:
The first step, after described stator coil energising, described rotor produces and rotatablely moves and output torque;
Second step, the rotation of described rotor, after described speed reduction unit speed change, is exported by described reducer output shaft, and described motor and described speed reduction unit rotate freely around axis;
The 3rd step after the moment of torsion that described motor produces increases by described speed reduction unit, forms drive source after the output of output shaft coupling;
The 4th step, record the line of described ball pivot A and described ball pivot B and described motor and described speed reduction unit be combined into revolving shaft between distance, the pulling force signal that pull pressure sensor described in gathering is born is also converted into after power, in conjunction with described distance, the output torque T after the motor described in obtaining and the combination of described speed reduction unit is:
(1);
In formula:
Active line be positioned on the line of centres of ball pivot A and described ball pivot B;
For the moment of the axis of rotation generation of described counterweight to described speed reduction unit;
For the moment of torsion sum that in mechanism, each kinematic pair produces;
, and actual value determine by calibration system;
The 5th step, described calibration system is after torch measuring system assembles, described output shaft coupling is replaced to the have circular arc scaling board (19) of (20), standard test weight 2(22) by standard test weight 1(21) be mounted on described scaling board, mount the tensile relationship that various criterion counterweight weight and described pull pressure sensor bear and be:
(2);
(3);
In formula: the pulling force that the pull pressure sensor described in when only mounting counterweight 1 is born;
For the pulling force that mounts accurate counterweight 1 and pull pressure sensor is born during by standard test weight 2 simultaneously;
For the radius of circular arc, the axis of rotation that is centered close to speed reduction unit of circular arc;
For the gravity of standard test weight, its value is the quality of counterweight and the product of acceleration of gravity;
Through type 2 and 3, can obtain:
(4);
The 6th step, from formula 4, the above the manufacturing accuracy, assembly precision of circular arc and the measuring accuracy of described pull pressure sensor of precision and described scaling board relevant, and it is irrelevant with processing and the assembly precision of other parts with this Size dependence, after the actual value of measuring, can be by this parameter read-in dynamometry software;
The computing formula that simultaneous formula 1 and formula 2 can obtain the output torque T after motor reducer combination is:
(5);
Finally, after demarcation, formula 5 is write to Survey Software, hardware and software syndeton combines and forms the accurate measuring systems of output torque.
3. the method for torque measurement according to claim 2, it is characterized in that: described scaling board is symmetrical structure, the center of circle of described circular arc is positioned at the symcenter of described scaling board, on the centre of gyration line that the motor described in described symcenter is positioned at and described speed reduction unit combine.
4. according to the method for the torque measurement described in claim 2 or 3, it is characterized in that: the circular arc on the vertical line that the total centre of gravity of described standard test weight 1 and described standard test weight 2 passes through and described scaling board is tangent, the position that described standard test weight 1 and described standard test weight 2 mount is on described motor axis of rotation and with respect to the opposite side of described pull pressure sensor.
CN201410233567.3A 2014-05-29 2014-05-29 Output torque accurate measuring systems and its method for torque measurement Active CN103968983B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410233567.3A CN103968983B (en) 2014-05-29 2014-05-29 Output torque accurate measuring systems and its method for torque measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410233567.3A CN103968983B (en) 2014-05-29 2014-05-29 Output torque accurate measuring systems and its method for torque measurement

Publications (2)

Publication Number Publication Date
CN103968983A true CN103968983A (en) 2014-08-06
CN103968983B CN103968983B (en) 2017-11-24

Family

ID=51238760

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410233567.3A Active CN103968983B (en) 2014-05-29 2014-05-29 Output torque accurate measuring systems and its method for torque measurement

Country Status (1)

Country Link
CN (1) CN103968983B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105509944A (en) * 2016-01-12 2016-04-20 浙江亚龙教育装备股份有限公司 Dynamic torque detection mechanism for motor
CN108979972A (en) * 2017-05-30 2018-12-11 Gtm测量有限责任公司 The method and cabin test platform of the calibration of measuring device for cabin test platform
CN109696274A (en) * 2019-01-21 2019-04-30 南京航空航天大学 A kind of tension sensor static demarcating device and method under weightlessness
CN111114692A (en) * 2019-12-18 2020-05-08 中国船舶重工集团有限公司第七一0研究所 Winch towing cable tension measurement driving mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86106766A (en) * 1986-09-27 1988-04-27 长沙市新湘机械厂 Highly precise micropower testing instrument
US20060117875A1 (en) * 2002-05-21 2006-06-08 Kendro Laboratory Products, Lp Back EMF measurement to overcome the effects of motor temperature change
CN101464196A (en) * 2008-12-26 2009-06-24 洛阳轴研科技股份有限公司 Method for testing automobile hub bearing unit torque rigidity
CN103323232A (en) * 2013-05-10 2013-09-25 重庆科技学院 Wind driven generator coupler slipping torque calibration test bed and calibration method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86106766A (en) * 1986-09-27 1988-04-27 长沙市新湘机械厂 Highly precise micropower testing instrument
US20060117875A1 (en) * 2002-05-21 2006-06-08 Kendro Laboratory Products, Lp Back EMF measurement to overcome the effects of motor temperature change
CN101464196A (en) * 2008-12-26 2009-06-24 洛阳轴研科技股份有限公司 Method for testing automobile hub bearing unit torque rigidity
CN103323232A (en) * 2013-05-10 2013-09-25 重庆科技学院 Wind driven generator coupler slipping torque calibration test bed and calibration method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105509944A (en) * 2016-01-12 2016-04-20 浙江亚龙教育装备股份有限公司 Dynamic torque detection mechanism for motor
CN108979972A (en) * 2017-05-30 2018-12-11 Gtm测量有限责任公司 The method and cabin test platform of the calibration of measuring device for cabin test platform
CN109696274A (en) * 2019-01-21 2019-04-30 南京航空航天大学 A kind of tension sensor static demarcating device and method under weightlessness
CN109696274B (en) * 2019-01-21 2019-12-03 南京航空航天大学 A kind of tension sensor static demarcating device and method under weightlessness
CN111114692A (en) * 2019-12-18 2020-05-08 中国船舶重工集团有限公司第七一0研究所 Winch towing cable tension measurement driving mechanism

Also Published As

Publication number Publication date
CN103968983B (en) 2017-11-24

Similar Documents

Publication Publication Date Title
CN103926077B (en) A kind of ball-screw Static and dynamic stiffness comprehensive measurement device
CN103968983A (en) Output torque accurate measurement system and torque measurement method thereof
CN103105296B (en) Testing device for bearing dynamic characteristic parameters
CN102323046B (en) Performance test bench for electric spindle
KR101297755B1 (en) Multi-purpose simulated load test apparatus for actuator and simulation test system using thereof
CN103528824A (en) Elastic foundation based internal and external dual-rotor fault simulation experiment table
CN105021352A (en) Main shaft built-in mechanical on-line dynamic balancing system
CN204666292U (en) A kind of shielding force at direction of pump spindle real-time test device
CN102937509A (en) Comprehensive testing platform of propelling system
CN201569661U (en) Velocity measuring device and velocity measuring mechanism
CN102519639A (en) Friction torque measurement apparatus of horizontal bearing
CN203037461U (en) Bearing dynamic characteristic parameter testing apparatus
CN203572643U (en) Electromechanical servo mechanism rigidity testing device
CN102226728B (en) Small-power motor power testing apparatus with power loss-free and wide measuring range properties
CN101968340A (en) End face runout and deflection measuring device and method
CN105572588A (en) Servo motor detection device
CN103900762B (en) Measurement apparatus and method thereof for amount of unbalance
CN102789228B (en) Detection device for mechanical cam controller
CN104122281A (en) Hollow shaft goniometer device
CN204116044U (en) Gear case torsional rigidity pick-up unit
CN106840668A (en) The device for testing stiffness and method of testing of a kind of magnetic suspension bearing
CN204359475U (en) Static torque sensor is adopted to detect the mechanical connecting structure of dynamic torque
CN201926593U (en) Rotary bending fatigue test machine for aviation conduit component
CN209279936U (en) It is a kind of for detecting the detection device of wheel hub jitter values
CN102043069B (en) Angular impact table

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
TA01 Transfer of patent application right

Effective date of registration: 20150310

Address after: 150080 Harbin, Heilongjiang, Nangang District Road, No. 52

Applicant after: Harbin Ha Pu electrical technology Ltd

Address before: 150080 Harbin, Heilongjiang, Nangang District Road, No. 52

Applicant before: Harbin Ha Pu electrical technology Ltd

Applicant before: Harbin University of Science and Technology

ASS Succession or assignment of patent right

Free format text: FORMER OWNER: HARBIN SCIENCE AND ENGINEERING UNIV.

Effective date: 20150310

C41 Transfer of patent application or patent right or utility model
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant