CN106769005A - Wet clutch hub fast state deflection test measurement method - Google Patents
Wet clutch hub fast state deflection test measurement method Download PDFInfo
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- CN106769005A CN106769005A CN201611108866.XA CN201611108866A CN106769005A CN 106769005 A CN106769005 A CN 106769005A CN 201611108866 A CN201611108866 A CN 201611108866A CN 106769005 A CN106769005 A CN 106769005A
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- clutch hub
- deflection
- rotating shaft
- rotating
- speed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/022—Power-transmitting couplings or clutches
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention discloses a kind of wet clutch hub fast state deflection test measurement method, it is characterised in that A, by clutch hub be arranged on rotatable rotating shaft on, at the uniform velocity rotated using rotating driving device drive shaft and clutch hub;B, the deflection by being arranged on clutch hub displacement transducer real-time detection clutch hub edge in the radial direction, when the deflection stablizes constant, record the deflection;C, the maximum deformation quantity that above-mentioned deflection is allowed with default clutch hub edge is compared, if above-mentioned deflection is less than the maximum deformation quantity, improve the rotating speed of drive shaft and clutch hub, repeat step B and C, until above-mentioned deflection is more than the maximum deformation quantity, or clutch hub explosion.The present invention has can record the deflection that obtains clutch hub to be tested its edge under different rotating speeds, the advantages of obtain the maximum speed that clutch hub to be tested can bear.
Description
Technical field
The invention belongs to auto parts and components experimental technique field, it is related to clutch hub performance measurement in automobile power-transmission system
Test method, it is more particularly related to a kind of wet clutch hub fast state deflection test measurement method.
Background technology
Clutch assembly is the important component of driver's control automobile power output.The assembly can be trampled with driver
With light lift pedal, interruption is played(Or reduce power output)With transmission power(Increase power output)Effect, so as to realize
Effective control that driver transmits to power.It is known that wet clutch is mounted on the pairing steel sheet on the outer hub of clutch
Generation moment of friction is mutually compressed with the friction plate on interior hub(Including sliding friction torque or static friction torque)To pass
Graduating power.However, the outer hub of clutch is directly connected with engine by power transmission shaft, with high turn of engine identical
Speed.Therefore, because hub can produce certain deformation outside the effect of rotating speed centrifugal force high, clutch, its dynamic transfer characteristics also can
Change therewith.
At present, for the deformation of the outer hub of wet clutch, either design in still process of the test, all have ignored clutch
Influence of the outer hub deformation to torque transmission, and in fact when the outer hub of clutch reaches certain rotating speed, deflection is to can not ignore
Disregard.In outer hub production process, in fact it could happen that the uneven situation of Mass Distribution, outer hub is caused to deform uneven, direct shadow
Ring the stress of pairing steel sheet, deform it is excessive situations such as there is also pairing steel sheet and come off, so as to influence the overall performance of clutch.
How resistance to high speed measurement experiment is carried out to the outer hub of wet clutch, realize the detection to the outer hub deformation of wet clutch, improved wet
The overall performance of formula clutch, as problem demanding prompt solution.
The content of the invention
For above-mentioned the deficiencies in the prior art, the technical problems to be solved by the invention are:How providing one kind can use
In deformation of the detection wet clutch hub under different rotating speeds, maximum when determining wet clutch hub normal work turns
Speed, advantageously improves clutch hub, improves the wet clutch hub fast state deflection test measurement of the quality of clutch hub
Method.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme:
A kind of wet clutch hub fast state deflection test measurement method, it is characterised in that comprise the following steps:
A, by clutch hub be arranged on rotatable rotating shaft on, using rotating driving device drive shaft and clutch hub at the uniform velocity
Rotation;
B, the deflection by being arranged on clutch hub displacement transducer real-time detection clutch hub edge in the radial direction, directly
When stablizing constant to the deflection, the deflection is recorded;
C, the maximum deformation quantity that above-mentioned deflection is allowed with default clutch hub edge is compared, if above-mentioned deflection
Less than the maximum deformation quantity, the rotating speed of drive shaft and clutch hub, repeat step B and C, until above-mentioned deflection is big are improved
In the maximum deformation quantity, or clutch hub explosion.
Using the above method, the deflection for obtaining clutch hub to be tested its edge under different rotating speeds can be recorded, had
Beneficial to the deformation rule of analysis wet clutch hub, for the improvement of wet clutch hub provides foundation.Can also obtain to be tested
The maximum speed that clutch hub can bear.
As optimization, before experiment, the wet clutch hub rotating speed deflection measurement pilot system high of following structure is first obtained,
Wet clutch hub rotating speed deflection measurement pilot system high includes base, and clutch hub mounting bracket is provided with the base
And rotating driving device;The clutch hub mounting bracket includes support body and for fixedly mounting turning for clutch hub to be tested
Axle, the rotating shaft is horizontally disposed, and two ends are installed in rotation on the support body;Position is additionally provided with the support body
Sensor is put, the position sensor is located at installation site of the clutch hub to be tested in the rotating shaft in the radial direction;
The rotating driving device includes motor, the output shaft rotating shaft of the motor, and can drive
The dynamic rotating shaft rotation;Also include TT&C system, the TT&C system includes computer, and for controlling the motor
Electric machine controller and the data acquisition unit for gathering the position signalling detected by the position sensor, the motor control
Device processed and data acquisition unit are electrically connected to the computer;
During experiment, clutch hub to be tested is arranged in the rotating shaft, the computer is driven by motor controller controls
Motor at the uniform velocity rotates, and drives the rotating shaft and clutch hub to be tested rotation, and the position sensor is to clutch to be tested
The deflection of hub rim carries out real-time detection, and is acquired by the data acquisition unit, and the data acquisition unit will be gathered
To deflection be transported in computer and recorded, and maximum become with what default clutch hub edge in computer was allowed
Shape amount is contrasted;If above-mentioned deflection is less than the maximum deformation quantity, the computer drives electricity by motor controller controls
Machine improves rotating speed, repeats the above steps, until above-mentioned deflection is more than the maximum deformation quantity, or clutch hub explosion, the meter
Calculation machine is stopped by motor controller controls motor.
As optimization, in the wet clutch hub rotating speed deflection measurement pilot system high, the rotating driving device
Also include raising speed case, the input shaft of the raising speed case is coaxially connected with the output shaft of the motor, the raising speed case it is defeated
Shaft is coaxially connected with the rotating shaft;The TT&C system also includes the raising speed case control for controlling the fast ratio of raising speed case switching
Device processed, the raising speed case controller is electrically connected to the computer;During experiment, if above-mentioned deflection is less than the maximum deformation quantity,
The computer can control the raising speed case carry high ratio by the raising speed case controller, improve the rotating shaft and to be measured
Try the rotating speed of clutch hub.
As optimization, in the wet clutch hub rotating speed deflection measurement pilot system high, the rotating driving device
Also include speed probe, the speed probe is arranged between the motor and the rotating shaft, is input into for detecting
Rotating speed onto the rotating shaft;The speed probe is electrically connected to the data acquisition unit.
Used as optimization, in the wet clutch hub rotating speed deflection measurement pilot system high, the two ends of the rotating shaft lead to
Bearings are crossed on the support body, the rotating shaft is towards setting acceleration on the bearing block of the bearing of described motor one end
Sensor, the acceleration transducer is electrically connected to the data acquisition unit.
Used as optimization, in the wet clutch hub rotating speed deflection measurement pilot system high, the clutch hub is installed
Frame also includes around circumferentially around the protective cover annular in shape on the outside of the rotating shaft that the position sensor is arranged on the protection
The inner side of cover.
As optimization, in the wet clutch hub rotating speed deflection measurement pilot system high, the position sensor edge
The radial direction of the rotating shaft is symmetrically arranged in pairs, and is provided with the protective cover some to the position sensor;Examination
When testing, the deformation detected by the position sensor that computer is symmetrically arranged in pairs to the radial direction along the rotating shaft
Amount is weighted, and by weighting after the maximum deformation quantity that is allowed with default clutch hub edge of maximum deflection carry out
Contrast.
As optimization, in the wet clutch hub rotating speed deflection measurement pilot system high, the position sensor edge
The circumferential direction of the protective cover has been evenly arranged four.
In sum, the invention has the advantages that:
1st, the method can record the deflection for obtaining clutch hub to be tested its edge under different rotating speeds, be conducive to analysis wet
The deformation rule of formula clutch hub, for the improvement of wet clutch hub provides foundation.Clutch hub institute to be tested can also be obtained
The maximum speed that can be born.
2nd, in the method using the position sensor that is radially arranged in pairs while measure, can eliminate and try
Due to the influence caused by rotating shaft radially wobbles or deforms to clutch hub deflection during testing, can just obtain more
Accurate deformation data, improves the precision of detection.
The 3rd, raising speed case is set in the method, deflection of the wet clutch hub under broader velocity interval can be tested
Changing Pattern.Meanwhile, using the speed ratio of raising speed case controller regulation raising speed case, the switching under different rotating speeds can be quickly realized,
Be conducive to improving the efficiency tested.
4th, the method is controlled using computer, reduces the requirement to test operation personnel, while examination can be improved
Test the security of operation.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the inventive method.
The structural representation of the device that Fig. 2 is used by the inventive method.
Fig. 3 is the schematic diagram of TT&C system part in Fig. 2.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
During specific implementation:As shown in figure 1, a kind of wet clutch hub fast state deflection test measurement method, including
Following steps:
A, by clutch hub be arranged on rotatable rotating shaft on, using rotating driving device drive shaft and clutch hub at the uniform velocity
Rotation;
B, the deflection by being arranged on clutch hub displacement transducer real-time detection clutch hub edge in the radial direction, directly
When stablizing constant to the deflection, the deflection is recorded;
C, the maximum deformation quantity that above-mentioned deflection is allowed with default clutch hub edge is compared, if above-mentioned deflection
Less than the maximum deformation quantity, the rotating speed of drive shaft and clutch hub, repeat step B and C, until above-mentioned deflection is big are improved
In the maximum deformation quantity, or clutch hub explosion.
Using the above method, the deflection for obtaining clutch hub to be tested its edge under different rotating speeds can be recorded, had
Beneficial to the deformation rule of analysis wet clutch hub, for the improvement of wet clutch hub provides foundation.Can also obtain to be tested
The maximum speed that clutch hub can bear.
During implementation, before experiment, as shown in Figures 2 and 3, the wet clutch hub rotating speed deflection high of following structure is first obtained
Measurement pilot system, wet clutch hub rotating speed deflection measurement pilot system high includes base 1, is set on the base 1
There are clutch hub mounting bracket 2 and rotating driving device 3;The clutch hub mounting bracket 2 includes support body 21 and for fixing
The rotating shaft 22 of clutch hub to be tested is installed, the rotating shaft 22 is horizontally disposed, and two ends be installed in rotation on it is described
On support body 21;Position sensor 23 is additionally provided with the support body 21, the position sensor 23 is located at clutch hub to be tested
Installation site in the rotating shaft 22 is in the radial direction;The rotating driving device 3 includes motor 31, the driving
The output shaft rotating shaft 22 of motor 31, and the rotating shaft 22 can be driven to rotate;Also include TT&C system 4,
The TT&C system 4 includes computer 41, and for controlling the electric machine controller 42 of the motor 31 and for gathering
The data acquisition unit 43 of the position signalling detected by the position sensor 23, the electric machine controller 42 and data acquisition unit
43 are electrically connected to the computer 41;
During experiment, clutch hub to be tested is arranged in the rotating shaft 22, the computer 41 is controlled by electric machine controller 42
Motor processed is at the uniform velocity rotated, and drives the rotating shaft 22 and clutch hub to be tested rotation, and the position sensor 23 is treated
The deflection at test clutch hub edge carries out real-time detection, and is acquired by the data acquisition unit 43, the data
The deflection that collector 43 will be collected is recorded in being transported to computer 41, and with default clutch hub in computer 41
The maximum deformation quantity that edge is allowed is contrasted;If above-mentioned deflection is less than the maximum deformation quantity, the computer 41 passes through
The control motor of electric machine controller 42 improves rotating speed, repeats the above steps, until above-mentioned deflection is more than the maximum deformation quantity,
Or clutch hub explosion, the computer 41 is by the control motor stopping of electric machine controller 42.
During implementation, in the wet clutch hub rotating speed deflection measurement pilot system high, the rotating driving device 3 is also
Including raising speed case 32, the input shaft of the raising speed case 32 is coaxially connected with the output shaft of the motor 31, the raising speed case
32 output shaft is coaxially connected with the rotating shaft 22;The TT&C system 4 is also included for controlling the raising speed case 32 to switch speed
The raising speed case controller 44 of ratio, the raising speed case controller 44 is electrically connected to the computer 41;During experiment, if above-mentioned deflection
Less than the maximum deformation quantity, the computer 41 can control the raising speed case 32 to improve speed by the raising speed case controller 44
Than improving the rotating speed of the rotating shaft 22 and clutch hub to be tested.
So, raising speed is carried out to the output speed of motor using raising speed case, wet clutch hub can be tested more
The Changing Pattern of the deflection under velocity interval wide.Meanwhile, using the speed ratio of raising speed case controller regulation raising speed case, can be fast
Speed realizes the switching under different rotating speeds, is conducive to improving the efficiency tested.
During implementation, in the wet clutch hub rotating speed deflection measurement pilot system high, the rotating driving device 3 is also
Including speed probe 33, the speed probe 33 is arranged between the motor 31 and the rotating shaft 22, for examining
Survey is input to the rotating speed in the rotating shaft 22;The speed probe 33 is electrically connected to the data acquisition unit 43.
So, the rotating speed being input in rotating shaft and clutch hub to be tested can be detected by the speed probe, and is led to
Cross during data acquisition unit feeds back to computer, turn such that it is able to facilitate computer to pass through output of the electric machine controller to motor
Speed is adjusted, and forms the closed-loop control to motor, makes rotating speed more the stabilization of clutch hub to be tested, is conducive to carrying
The accuracy of high detection.
During implementation, in the wet clutch hub rotating speed deflection measurement pilot system high, the two ends of the rotating shaft 22 lead to
Bearings are crossed on the support body 21, the rotating shaft 22 is towards setting on the bearing block of the bearing of the one end of the motor 31
Acceleration transducer 24, the acceleration transducer 24 is electrically connected to the data acquisition unit 43.
When high speed test is carried out to clutch hub, due to the non-uniform mass of clutch hub, clutch can be caused
Hub and the vibration of rotating shaft, so as to drive bearing block to vibrate together, the vibration is adopted in regular generally in fixed rotating speed
With said structure, acceleration transducer is set on bearing block, can be used for detecting different rotating speeds of the bearing block in clutch hub
Under Vibration Condition.In addition, being burst when high speed rotates once clutch hub, the high vibration of bearing block can be caused, from
And the power that can in time cut off motor is input into, terminate experiment.
During implementation, in the wet clutch hub rotating speed deflection measurement pilot system high, the clutch hub mounting bracket 2
Also include that the position sensor 23 is arranged on described around circumferentially around the protective cover 25 annular in shape in the outside of the rotating shaft 22
The inner side of protective cover 25.
So, protective cover is set in the outside of rotating shaft, is burst when high speed rotates once clutch hub, be prevented from
Fragment is hurted sb.'s feelings, and is conducive to improving the security tested.
During implementation, in the wet clutch hub rotating speed deflection measurement pilot system high, the edge of the position sensor 23
The radial direction of the rotating shaft 22 is symmetrically arranged in pairs, and is provided with the protective cover 25 some to the position sensor
23;During experiment, computer is examined to the position sensor 23 that the radial direction along the rotating shaft 22 is symmetrically arranged in pairs
The deflection for measuring is weighted, and by weighting after the maximum that is allowed with default clutch hub edge of maximum deflection
Deflection is contrasted.
Due to the non-uniform mass of clutch hub, clutch hub is likely to result in and turns during high speed rotates
Axle produces flexural deformation.Using above-mentioned setting, by radially just to two position sensors setting to it is to be tested from
The deflection of clutch hub rim is detected, can be weighted by by the detected value of the two, can eliminated shaft bending and become
Measurement error produced by shape, is conducive to improving certainty of measurement.
During implementation, in the wet clutch hub rotating speed deflection measurement pilot system high, the edge of the position sensor 23
The circumferential direction of the protective cover 25 has been evenly arranged four.
So, the deflection of clutch hub can be detected from orthogonal both direction, i.e., can reduces biography
The setting quantity of sensor, it is also possible to meet the experiment demand of multi-direction detection.
Presently preferred embodiments of the present invention is the foregoing is only, is not limitation with the present invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (8)
1. a kind of wet clutch hub fast state deflection test measurement method, it is characterised in that comprise the following steps:
A, by clutch hub be arranged on rotatable rotating shaft on, using rotating driving device drive shaft and clutch hub at the uniform velocity
Rotation;
B, the deflection by being arranged on clutch hub displacement transducer real-time detection clutch hub edge in the radial direction, directly
When stablizing constant to the deflection, the deflection is recorded;
C, the maximum deformation quantity that above-mentioned deflection is allowed with default clutch hub edge is compared, if above-mentioned deflection
Less than the maximum deformation quantity, the rotating speed of drive shaft and clutch hub, repeat step B and C, until above-mentioned deflection is big are improved
In the maximum deformation quantity, or clutch hub explosion.
2. wet clutch hub fast state deflection test measurement method as claimed in claim 1, it is characterised in that experiment
Before, first obtain the wet clutch hub rotating speed deflection measurement pilot system high of following structure, the wet clutch hub rotating speed high
Deflection measurement pilot system includes base(1), the base(1)On be provided with clutch hub mounting bracket(2)And rotation is driven
Dynamic device(3);The clutch hub mounting bracket(2)Including support body(21)And for fixedly mounting turning for clutch hub to be tested
Axle(22), the rotating shaft(22)It is horizontally disposed, and two ends are installed in rotation on the support body(21)On;The support body
(21)On be additionally provided with position sensor(23), the position sensor(23)Positioned at clutch hub to be tested in the rotating shaft
(22)On installation site in the radial direction;The rotating driving device(3)Including motor(31), the motor
(31)The output shaft rotating shaft(22), and the rotating shaft can be driven(22)Rotation;Also include TT&C system
(4), the TT&C system(4)Including computer(41), and for controlling the motor(31)Electric machine controller
(42)With for gathering the position sensor(23)The data acquisition unit of detected position signalling(43), the motor control
Device processed(42)And data acquisition unit(43)It is electrically connected to the computer(41);
During experiment, clutch hub to be tested is arranged on the rotating shaft(22)On, the computer(41)By electric machine controller
(42)Control motor at the uniform velocity rotates, and drives the rotating shaft(22)And clutch hub rotation to be tested, the position sensing
Device(23)Deflection to clutch hub edge to be tested carries out real-time detection, and by the data acquisition unit(43)Adopted
Collection, the data acquisition unit(43)The deflection that will be collected is transported to computer(41)In recorded, and and computer
(41)The maximum deformation quantity that interior default clutch hub edge is allowed is contrasted;If above-mentioned deflection is less than the maximum distortion
Amount, the computer(41)By electric machine controller(42)Control motor improves rotating speed, repeats the above steps, until above-mentioned
Deflection is more than the maximum deformation quantity, or clutch hub explosion, the computer(41)By electric machine controller(42)Control is driven
Dynamic motor stops.
3. wet clutch hub fast state deflection test measurement method as claimed in claim 2, it is characterised in that described
In wet clutch hub rotating speed deflection measurement pilot system high, the rotating driving device(3)Also include raising speed case(32), institute
State raising speed case(32)Input shaft and the motor(31)Output shaft it is coaxially connected, the raising speed case(32)Output shaft
With the rotating shaft(22)It is coaxially connected;The TT&C system(4)Also include for controlling the raising speed case(32)Switching speed ratio
Raising speed case controller(44), the raising speed case controller(44)It is electrically connected to the computer(41);During experiment, if above-mentioned deformation
Amount is less than the maximum deformation quantity, the computer(41)Can be by the raising speed case controller(44)Control the raising speed case
(32)High ratio is carried, the rotating shaft is improved(22)And the rotating speed of clutch hub to be tested.
4. wet clutch hub fast state deflection test measurement method as claimed in claim 2, it is characterised in that described
In wet clutch hub rotating speed deflection measurement pilot system high, the rotating driving device(3)Also include speed probe
(33), the speed probe(33)Installed in the motor(31)With the rotating shaft(22)Between, it is input into for detecting
To the rotating shaft(22)On rotating speed;The speed probe(33)It is electrically connected to the data acquisition unit(43).
5. wet clutch hub fast state deflection test measurement method as claimed in claim 2, it is characterised in that described
In wet clutch hub rotating speed deflection measurement pilot system high, the rotating shaft(22)Two ends by bearings in the frame
Body(21)On, the rotating shaft(22)Towards the motor(31)Acceleration transducer is set on the bearing block of the bearing of one end
(24), the acceleration transducer(24)It is electrically connected to the data acquisition unit(43).
6. wet clutch hub fast state deflection test measurement method as claimed in claim 2, it is characterised in that described
In wet clutch hub rotating speed deflection measurement pilot system high, the clutch hub mounting bracket(2)Also include around circumferentially around
In the rotating shaft(22)The protective cover annular in shape in outside(25), the position sensor(23)It is arranged on the protective cover(25)
Inner side.
7. wet clutch hub fast state deflection test measurement method as claimed in claim 6, it is characterised in that described
In wet clutch hub rotating speed deflection measurement pilot system high, the position sensor(23)Along the rotating shaft(22)Radial direction
Direction is symmetrically arranged in pairs, and the protective cover(25)On be provided with it is some to the position sensor(23);During experiment, meter
Calculation machine is to along the rotating shaft(22)The position sensor that is symmetrically arranged in pairs of radial direction(23)Detected change
Shape amount is weighted, and by weighting after the maximum deformation quantity that is allowed with default clutch hub edge of maximum deflection enter
Row contrast.
8. wet clutch hub fast state deflection test measurement method as claimed in claim 7, it is characterised in that described
In wet clutch hub rotating speed deflection measurement pilot system high, the position sensor(23)Along the protective cover(25)Week
Four have been evenly arranged to direction.
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CN201611108866.XA CN106769005A (en) | 2016-12-06 | 2016-12-06 | Wet clutch hub fast state deflection test measurement method |
Applications Claiming Priority (1)
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CN201611108866.XA CN106769005A (en) | 2016-12-06 | 2016-12-06 | Wet clutch hub fast state deflection test measurement method |
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ID=58879103
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Citations (6)
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JPH09318494A (en) * | 1996-05-29 | 1997-12-12 | Honda Motor Co Ltd | Tester of differential rotation generating device |
CN101586953A (en) * | 2009-06-18 | 2009-11-25 | 北京理工大学 | Apparatus for measuring radial heat distortion amount of high-temperature rotor of steam turbine |
CN102410923A (en) * | 2011-08-09 | 2012-04-11 | 西安理工大学 | Rigid and non-linear relation testing device and method of cylindrical fit joint surface |
CN103983436A (en) * | 2013-02-07 | 2014-08-13 | 重庆长安汽车股份有限公司 | Brake friction, heating and vibration coupling test table |
CN205138786U (en) * | 2015-10-16 | 2016-04-06 | 陕西科技大学 | High -speed destruction test platform of clutch dough sheet |
CN105841627A (en) * | 2016-05-10 | 2016-08-10 | 中国航空工业集团公司北京航空精密机械研究所 | Apparatus for measuring geometric deformation of large-size annular casing type part |
-
2016
- 2016-12-06 CN CN201611108866.XA patent/CN106769005A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09318494A (en) * | 1996-05-29 | 1997-12-12 | Honda Motor Co Ltd | Tester of differential rotation generating device |
CN101586953A (en) * | 2009-06-18 | 2009-11-25 | 北京理工大学 | Apparatus for measuring radial heat distortion amount of high-temperature rotor of steam turbine |
CN102410923A (en) * | 2011-08-09 | 2012-04-11 | 西安理工大学 | Rigid and non-linear relation testing device and method of cylindrical fit joint surface |
CN103983436A (en) * | 2013-02-07 | 2014-08-13 | 重庆长安汽车股份有限公司 | Brake friction, heating and vibration coupling test table |
CN205138786U (en) * | 2015-10-16 | 2016-04-06 | 陕西科技大学 | High -speed destruction test platform of clutch dough sheet |
CN105841627A (en) * | 2016-05-10 | 2016-08-10 | 中国航空工业集团公司北京航空精密机械研究所 | Apparatus for measuring geometric deformation of large-size annular casing type part |
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Application publication date: 20170531 |
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