CN105092245B - A kind of Wet-type friction slice experimental rig and its test method - Google Patents
A kind of Wet-type friction slice experimental rig and its test method Download PDFInfo
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- CN105092245B CN105092245B CN201510610903.6A CN201510610903A CN105092245B CN 105092245 B CN105092245 B CN 105092245B CN 201510610903 A CN201510610903 A CN 201510610903A CN 105092245 B CN105092245 B CN 105092245B
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Abstract
The invention discloses a kind of Wet-type friction slice experimental rig and its test method, including：Variable-frequency motor；Hydraulic gear-shifting clutch frock, it is connected with variable-frequency motor, then is connected with output dynamometer machine power transmission shaft；Oil route controller, it is connected with hydraulic gear-shifting clutch frock, then is connected with cooler, and cooler is provided with cooling oil regulating valve；Speed probe, fuel-quantity transducer and institute's temperature sensor composition sensor device；Electric control gear, its respectively with variable-frequency motor, sensor device, cooling oil regulating valve and oil route controller；Data acquisition device, it is connected with output dynamometer machine, the moment of friction data for gathering output.There is the present invention input speed and oil inlet quantity can adjust, and cooling oil oil inlet quantity can be adjusted, the characteristics of control friction plate moment of friction.
Description
Technical field
The present invention relates to automobile clutch field, and in particular to a kind of Wet-type friction slice experimental rig and its experiment side
Method.
Background technology
With developing rapidly for automobile industry, the form of car transmissions is also varied, and with science and technology
Progressive, transmission system has also obtained further development and perfect, and at present, the automatic transmission that we use mainly has hydraulic automatic
The double clutch of speed changer (AT), ST (CVT), automatic mechanical transmission (AMT) and latest developments is certainly
Dynamic speed changer (DCT)；Wherein, DCT can be divided into two kinds of wet type and dry type by clutch form, compared with dry clutch is carried out,
The working condition of wet clutch is more reliable, and clutch working life is longer, and clutch do not need when in use it is frequent
Adjustment, cools down because friction of wet clutch is immersed in cooling oil, and operating temperature is relatively low, so allowing clutch during starting
Device has relatively long time to skid and will not friction plate scaling loss.Due to the protection of cooling oil, the friction plate of wet clutch
Service life is generally higher by 4~6 times than dry type.Wet clutch due to being influenceed by oil film, coefficient of friction compared with dry type from
Clutch is lower, about between 0.07~0.08, but can be by increasing Friction Disk Surface pressure and improves；Due to wet type
The control performance of multiplate clutch is directly connected to the gearshift Performance And Reliability of vehicle, so having good heat radiating and friction to control
The multi-disc wet clutch of performance processed is widely used, and is especially widely used in various automatic transmission for vehicles,
Friction of wet clutch works in the enclosed environment that medium is cooling oil, by the effect of wet clutch centrifugal force, passes through
Driven friction disk surface grooves, cooling oil constantly flows into its inner-diameter end by Clutch input shaft oil inlet, and by oil groove stream
To external diameter end, clutch housing is finally thrown to, is flowed out by the oil-out of housing, while the heat that friction plate in engagement process is produced
Amount is taken away, so as to improve the service life of clutch.
In the patent of invention 201110123911.X for having authorized, a kind of multi-disc wet clutch friction steel disc temperature is described
Degree detection experimental rig, its purpose is to it disclosure satisfy that to multi-disc wet clutch dry run operating mode under, rubs to clutch
The temperature for wiping steel disc circumference and axial direction measures demand, for the design and control of clutch provide certificate parameter, but from
When clutch is separated, cooling oil is due to the oil film that can not be discharged by oil groove in time and produced and the contact surface of driving and driven friction plate
Fluid viscous force effect under and generate moment of friction, therefore, moment of friction be this wet clutch in use
It is unavoidable, can only be reduced by technical optimization and cannot eliminated, and during specific use, it is impossible to enough control is adjusted
Section, while the items factor such as tank structure also by Wet-type friction slice, cooling oil flow and inlet pressure is influenceed.
In the prior art, in Wet-type friction slice in use, cooling oil due to can not in time by oil groove discharge and
The oil film of generation produces moment of friction inevitable and adjusts with the contact surface of driving and driven friction plate under fluid viscous force effect
Section.
The content of the invention
The present invention has designed and developed a kind of Wet-type friction slice experimental rig and its test method, is led to respectively by technical optimization
Cross and control the input speed and oil inlet quantity and cooling oil oil inlet quantity in hydraulic gear-shifting clutch frock and then can be very good
Regulating friction force square；Can be adjusted with input speed in hydraulic gear-shifting clutch frock and oil inlet quantity, cooling oil oil inlet quantity energy
Enough regulations, and then the characteristics of control friction plate moment of friction.
The present invention provide technical scheme be：
A kind of Wet-type friction slice experimental rig, including：
Variable-frequency motor, it is clutch end；
Hydraulic gear-shifting clutch frock, its input shaft is connected with the variable-frequency motor by power output shaft, then by institute
The output shaft for stating hydraulic shift clutch frock is connected with output dynamometer machine power transmission shaft；
Oil route controller, it is connected with the hydraulic gear-shifting clutch frock, by the hydraulic gear-shifting clutch work
Dress is connected with cooler again, and the cooler fuel feed hole and oil-out one end are provided with cooling oil regulating valve；
Speed probe, it is connected with the hydraulic shift clutch frock, and the speed probe is used to monitor hydraulic pressure
The input speed of gear shift sleeve frock；
Fuel-quantity transducer, it is arranged in the oil route controller, and the fuel-quantity transducer is used to monitor the hydraulic pressure
The import oil mass of shift clutch frock；
Temperature sensor, it is used to monitor the temperature that high pressure fuel source is entered into oil circuit；
Electric control gear, its respectively with the variable-frequency motor, the sensor, the cooling oil regulating valve and the oil circuit control
Device connection processed；Wherein, the electric control gear is cold into the hydraulic shift clutch frock by cooling oil regulation valve regulation
But oil mass, the electric control gear adjusts the input speed of hydraulic shift clutch frock by controlling the variable-frequency motor, described
Electric control gear adjusts the oil inlet quantity of the hydraulic gear-shifting clutch frock by controlling the oil route controller；
Data acquisition device, it is connected with the output dynamometer machine, the moment of friction data for gathering output.
Preferably, also include：Oil pressure sensor, the oil pressure sensor is arranged on the high-voltage electric oil pump oil inlet
Place, while being connected with the electric control gear, closed-loop control is realized by the oil pressure sensor and the electric control gear.
Preferably, also include：Accumulator, it is installed on high pressure fuel source oil-out and oil line pipe junction.
Preferably, also include：High-voltage electric oil pump, the temperature sensor is exported installed in the high-voltage electric oil pump
Oil port, the temperature sensor is used to monitor the temperature that high pressure fuel source is entered into oil circuit.
Preferably, also include：Decelerator, the variable-frequency motor connects the decelerator and is driven by power output shaft
Axle, the input shaft of the hydraulic shift clutch frock is connected by the decelerator power transmission shaft.
Preferably, the hydraulic shift clutch frock also includes flow set, itself and the input shaft spline connection, and
And it is machined with horizontal and vertical oil duct；There is needle bearing between the flow set and the input gear；Peace in the flow set
Fill friction plate to be tested.
Preferably, the speed probe is Hall sensor.
A kind of test method of Wet-type friction slice experimental rig, using described Wet-type friction slice experimental rig, its is specific
Test procedure is as follows：
Step one：By the temperature sensor and the electric control gear, it is T that record starts temperature during experiment0；
Step 2：The hydraulic gear-shifting clutch separation, adjusting valve regulation cooling oil oil inlet quantity by the cooling oil is
Q0；The input speed stabilization of hydraulic shift clutch frock is controlled in n by the speed probe and the electric control gear0；
Step 3：The hydraulic gear-shifting clutch is combined, and liquid is controlled by the fuel-quantity transducer and the electric control gear
The oil inlet quantity of gear shift sleeve frock is pressed, by adjusting the hydraulic shift clutch frock oil inlet quantity q1, according toAdjust the moment of friction m1；Wherein, ω is the rotating speed of wet clutch；μ is
Cooling oil dynamic viscosity；RoIt is friction of wet clutch external diameter；RiIt is friction of wet clutch internal diameter；A,a1It is constant；e
It is the truth of a matter of natural logrithm；
Step 3：The hydraulic gear-shifting clutch is combined, and liquid is controlled by the fuel-quantity transducer and the electric control gear
The oil inlet quantity of gear shift sleeve frock is pressed, by adjusting the hydraulic shift clutch frock oil inlet quantity q1, according toAdjust the moment of friction m1；Wherein, ω is the rotating speed of wet clutch；μ is
Cooling oil dynamic viscosity；RoIt is friction of wet clutch external diameter；RiIt is friction of wet clutch internal diameter；A,a1It is constant；e
It is the truth of a matter of natural logrithm.
A kind of test method of Wet-type friction slice experimental rig, using described Wet-type friction slice experimental rig, its is specific
Test procedure is as follows：
Step one：By the temperature sensor and the electric control gear, it is T that record starts temperature during experiment0；
Step 2：The hydraulic gear-shifting clutch separation, adjusting valve regulation cooling oil oil inlet quantity by the cooling oil is
Q0；The oil inlet quantity stabilization of hydraulic shift clutch frock is controlled in q by the fuel-quantity transducer and the electric control gear0；
Step 3：The hydraulic gear-shifting clutch is combined, and control is controlled by the speed probe and the electric control gear
The input speed of hydraulic shift clutch frock processed, by the input speed n for adjusting the hydraulic shift clutch frock1, root
According toAdjust the moment of friction m2；Wherein, ω is the rotating speed of wet clutch；μ
It is cooling oil dynamic viscosity；RoIt is friction of wet clutch external diameter；RiIt is friction of wet clutch internal diameter；B,a2It is constant；
E is the truth of a matter of natural logrithm.
Preferably, using described Wet-type friction slice experimental rig, being adjusted by the cooling oil in the step 2
Section valve regulation cooling oil oil inlet quantity.
The present invention is had the advantage that compared with prior art：
1st, by building experimental rig of the present invention, the change of hydraulic pressure gear shift sleeve technology status can effectively be simulated
Law, hydraulic shift clutch is explored by different Test Research, and theoretical branch is provided for design, using, maintenance etc.
Hold and instruct；
2nd, by the regulation of the input speed to hydraulic shift clutch frock, can effective regulating friction force square, make
Moment of friction can be controlled, meanwhile, it is the change of input speed of the analysis hydraulic shift clutch frock under different oil temperatures
Law provides checking data, while also making influence of the input speed of hydraulic shift clutch frock to moment of friction provide reason
By support and guidance；
3rd, by the regulation of the oil inlet quantity to hydraulic shift clutch frock, can effective regulating friction force square, make to rub
Wiping torque can be controlled, meanwhile, it is the change rule of oil inlet quantity of the analysis hydraulic shift clutch frock under different oil temperatures
Rule provides checking data, while also making influence of the oil inlet quantity of hydraulic shift clutch frock to moment of friction provide theories integration
With guidance；
4th, by cooling down the regulation of oil mass, control, in the change of the condition moment of friction of different cooling oils, is cooling oil
The influence to moment of friction is measured theories integration to be provided and is instructed.
5th, hydraulic shift clutch frock of the present invention can provide experimental condition for variety classes friction plate, so that
Can more effectively, comprehensively, easily analyze performance and the accident analysis of variety classes friction plate.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of hydraulic shift clutch frock of the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
As shown in Figure 1 and Figure 2, the invention provides a kind of experimental rig of Wet-type friction slice, it is made up of five parts,
Respectively actuating unit, hydraulic circuit, sensor device, electric control gear and data acquisition device；
Actuating unit, it includes variable-frequency motor 110, decelerator 120, hydraulic shift clutch frock 130 and output
Dynamometer machine 140；
Wherein, variable-frequency motor 110 is the clutch end of experimental rig, and it can adjust different output speeds, frequency conversion
Motor 110 is frequency converting speed regulating three-phase asynchronous electromotor, and its input power can reach 350kW, using the teaching of the invention it is possible to provide maximum power is exported
Torque is 1114Nm, by the power transmission shaft of the power output shaft connection reducer 120 of variable-frequency motor 110, by decelerator 120
Decelerating effect after the output speed stablized, the selection of decelerator 120 is can make hydraulic gear-shifting clutch frock defeated
Enter rotating speed between 800-1800rpm, the power transmission shaft of decelerator 120 reconnects the input shaft of hydraulic shift clutch frock 130
133, it is connected with the output power transmission shaft of dynamometer machine 140 again by the output shaft 134 of hydraulic shift clutch frock 130, hydraulic gear-shifting
Clutch is arranged on inside hydraulic gear-shifting clutch frock 130, and moment of friction is exported by exporting dynamometer machine 140；
Hydraulic circuit, it includes the regulation of high-voltage electric oil pump 210, oil route controller 220, cooler 230 and cooling oil
Valve 240；
Wherein, high-voltage electric oil pump 210, it is connected with high pressure fuel source, and high-voltage electric oil pump 210 is used to be filled for power transmission
The high pressure fuel source that stabilization is provided is put, high-voltage electric oil pump 210 can provide the stable oil sources of 1-4MPa, and highest can provide 6MPa
Oil pressure, sets safety valve 213 inside high-voltage electric oil pump 210, and it can be automatic according to the internal pressure of high-voltage electric oil pump 210
Open and close, it is ensured that in system safety, be connected with hydraulic shift clutch frock 130 by oil route controller 220, then with cooler
230 are connected, and the fuel feed hole of cooler 230 and oil-out one end are provided with cooling oil regulating valve 240, by cooling oil regulating valve 240
The oil inlet quantity into hydraulic shift clutch frock 130 can be adjusted；
Sensor device, it includes speed probe 310, fuel-quantity transducer 320 and temperature sensor 330；
Wherein, speed probe 310 is connected with hydraulic shift clutch frock 130, for monitoring hydraulic shift clutch
The input speed of frock 130；Fuel-quantity transducer 320 is arranged in oil route controller 220, and fuel-quantity transducer 320 is used to monitor
Into the import oil mass of hydraulic gear-shifting clutch frock 130；Temperature sensor 330 exports oil installed in high-voltage electric oil pump 210
At mouthful, temperature sensor 330 is used to monitor the temperature that high pressure fuel source is entered into oil circuit；Temperature sensor 330 uses resistance-type
Sensor, between -20 DEG C to 90 DEG C, speed probe 310 is Hall sensor to range ability；
Electric control gear 400, its respectively with variable-frequency motor 110, speed probe 310, fuel-quantity transducer 320, TEMP
Device 330, cooling oil regulating valve 240 and oil route controller 220 are connected；Cooling oil regulating valve is controlled to adjust by electric control gear 400
Section enters hydraulic shift clutch frock 130 and cools down oil mass, the variable-frequency motor 110 is controlled by electric control gear 400, so as to adjust
The input speed of section hydraulic shift clutch frock 130, by the oil circuit control control device 220 of electric control gear 400, so as to adjust
The import oil mass of hydraulic gear-shifting clutch frock 130, the defeated of hydraulic gear-shifting clutch frock 130 is adjusted by electric control gear 400
Enter rotating speed and import oil mass and then adjust the output output moment of friction of dynamometer machine 140；Electric control gear 400 can be by revolution speed sensing
Device 310 gathers rotary speed data and gathers oil mass data by fuel-quantity transducer 320, meanwhile, can be controlled by electric control gear 400
Output moment of friction, by exporting the determination of moment of friction, can obtain hydraulic gear-shifting clutch frock 130 input speed and
The test data of import oil mass, also can collect real-time oil temperature data by oil temperature sensor 330；
Data acquisition device 500, it is connected with output dynamometer machine 140, for gathering moment of friction data.
In another embodiment, oil pressure sensor 211 is also included in hydraulic circuit, it is arranged on high-voltage electric oil pump
At 210 oil inlets, while being connected with electric control gear 400, closed-loop control is realized by oil pressure sensor 211 and electric control gear 400,
Make that in hydraulic circuit stable oil pressure can be always maintained at.
In another embodiment, accumulator 212 is also included in hydraulic circuit, it is arranged on high pressure fuel source oil-out with oil
Road pipeline junction, accumulator 212 is used to, when high pressure fuel source pressure increases, the energy of this part can be absorbed, so as to ensure
The pressure stability of whole hydraulic circuit.
In another embodiment, hydraulic shift clutch frock 130 also includes input gear 131 and output gear 132.
In another embodiment, hydraulic shift clutch frock 130 also include flow set 135, realize hydraulic gear-shifting from
The separation of clutch is combined, and flow covers 135 and the spline connection of input shaft 133, and is machined with horizontal and vertical oil duct, flow set
There is needle bearing between 135 and input gear, friction plate is installed in flow set 135；Hydraulic shift clutch is combined to separate and controlled
Valve adoption rate pressure valve, requires according to existing controller, chooses specification for 0-2000mA input currents are controlled, output oil pressure model
It is 0-6Mpa to enclose, and two stitch one of valve terminate+12V, another termination electric control gear 400.
In another embodiment, the friction plate of selection is radial direction oil groove friction plate；Also, this mode be it is a kind of compared with
The explanation of good example, but be not limited thereto, when the present invention is implemented, can be according to the type selecting of user's demand friction plate
The implementation aspect of suitable friction plate, inside hydraulic gear-shifting clutch frock 130.
A kind of test method of Wet-type friction slice experimental rig, Wet-type friction slice experimental rig of the present invention, its tool
Body test procedure is as follows：
Step one：By temperature sensor 330 and control unit 400, it is T that record starts temperature during experiment0；
Step 2：Hydraulic gear-shifting clutch separation, it is Q to adjust cooling oil oil inlet quantity by cooling oil regulating valve 2400, L/
min；The input speed stabilization for controlling hydraulic shift clutch frock 130 by speed probe 310 and automatically controlled unit 400 exists
n0, rpm；
Step 3：Hydraulic gear-shifting clutch is combined, and hydraulic shift is controlled by fuel-quantity transducer 320 and electric control gear 400
The oil inlet quantity of clutch frock 130, by adjusting the oil inlet quantity q of hydraulic shift clutch frock 1301, L/min, according toAdjust the moment of friction m1, Nm；Wherein, ω turning for wet clutch
Speed, rad/s；μ is cooling oil dynamic viscosity, Pas；RoIt is friction of wet clutch external diameter, m；RiIt is wet clutch friction
Piece internal diameter, m；A,a1It is constant；E is the truth of a matter of natural logrithm；
In the present embodiment, Q0=18.5, n0=1350, A=73.29, a1=0.0348.
A kind of test method of Wet-type friction slice experimental rig, Wet-type friction slice experimental rig of the present invention, its tool
Body test procedure is as follows：
Step one：By temperature sensor 330 and control unit 400, it is T that record starts temperature during experiment0；
Step 2：Hydraulic gear-shifting clutch separation, it is Q to adjust cooling oil oil inlet quantity by cooling oil regulating valve 2400, L/
min；The oil inlet quantity stabilization of hydraulic shift clutch frock 130 is controlled in q by fuel-quantity transducer 320 and automatically controlled unit 4000,
L/min；
Step 3：Hydraulic gear-shifting clutch is combined, by speed probe 310 and the control hydraulic pressure of automatically controlled unit 400
The input speed of gear shift sleeve frock 130, by the input speed n for adjusting hydraulic shift clutch frock 1301, rpm, root
According toAdjust the moment of friction m2, Nm；Wherein, ω is wet clutch
Rotating speed, rad/s；μ is cooling oil dynamic viscosity, Pas；RoIt is friction of wet clutch external diameter, m；RiIt is wet clutch
Friction plate internal diameter, m；B,a2It is constant；E is the truth of a matter of natural logrithm；
In the present embodiment, Q0=18.5, q0=24.7, B=2.16, a2=0.0006
In another embodiment, using Wet-type friction slice experimental rig, cooling oil is adjusted by cooling oil regulating valve 240
Oil inlet quantity is Q1,Q2,Q3,......,Qn, L/min；It is adjusted control moment of friction according to above two method respectively again；
In the present embodiment, regulation cooling oil oil inlet quantity is
Q1=14.0, Q2=15.5, Q3=18.0, Q4=19.5, Q5=21.0, L/min；
Although embodiment of the present invention is disclosed as above, it is not restricted to listed in specification and implementation method
With, it can be applied to various suitable the field of the invention completely, for those skilled in the art, can be easily
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (10)
1. a kind of Wet-type friction slice experimental rig, it is characterised in that including：
Variable-frequency motor, it is clutch end；
Hydraulic gear-shifting clutch frock, its input shaft is connected with the variable-frequency motor by power output shaft, then by the liquid
The output shaft of gear shift sleeve frock is pressed to be connected with output dynamometer machine power transmission shaft；
Oil route controller, it is connected with the hydraulic gear-shifting clutch frock, by the hydraulic gear-shifting clutch frock again
It is connected with cooler, the cooler fuel feed hole and oil-out one end are provided with cooling oil regulating valve；
High-voltage electric oil pump, it is connected with the high pressure fuel source, the high-voltage electric oil pump by the oil route controller with
The hydraulic gear-shifting clutch frock is connected；
Wherein, the high-voltage electric oil pump inside sets safety valve；
Speed probe, it is connected with the hydraulic shift clutch frock, and the speed probe is used to monitor hydraulic shift
The input speed of clutch frock；
Fuel-quantity transducer, it is arranged in the oil route controller, and the fuel-quantity transducer is used to monitor the hydraulic gear-shifting
The import oil mass of clutch frock；
Temperature sensor, it is used to monitor the temperature that high pressure fuel source is entered into oil circuit；
Electric control gear, it controls to fill respectively with the variable-frequency motor, the sensor, the cooling oil regulating valve and the oil circuit
Put connection；Wherein, the electric control gear adjusts valve regulation into the hydraulic shift clutch frock cooling oil by cooling oil
Amount, the electric control gear adjusts the input speed of hydraulic shift clutch frock by controlling the variable-frequency motor, described automatically controlled
Device adjusts the oil inlet quantity of the hydraulic gear-shifting clutch frock by controlling the oil route controller；
Data acquisition device, it is connected with the output dynamometer machine, the moment of friction data for gathering output.
2. Wet-type friction slice experimental rig as claimed in claim 1, it is characterised in that also include：Oil pressure sensor, the oil
Pressure sensor is arranged at the high-voltage electric oil pump oil inlet, while being connected with the electric control gear, is passed by the oil pressure
Sensor and the electric control gear realize closed-loop control.
3. Wet-type friction slice experimental rig as claimed in claim 1 or 2, it is characterised in that also include：Accumulator, its installation
In high pressure fuel source oil-out and oil line pipe junction.
4. Wet-type friction slice experimental rig as claimed in claim 3, it is characterised in that the temperature sensor is arranged on described
At high-voltage electric oil pump output oil port, the temperature sensor is used to monitor the temperature that high pressure fuel source is entered into oil circuit.
5. Wet-type friction slice experimental rig as claimed in claim 3, it is characterised in that also include：Decelerator, the variable-frequency electric
Machine connects the decelerator power transmission shaft by power output shaft, and the hydraulic shift clutch is connected by the decelerator power transmission shaft
The input shaft of device frock.
6. Wet-type friction slice experimental rig as claimed in claim 3, it is characterised in that the hydraulic shift clutch frock is also
Including flow set, itself and the input shaft spline connection, and it is machined with horizontal and vertical oil duct；The flow set is defeated with described
Entering between gear has needle bearing；Friction plate to be tested is installed in the flow set.
7. Wet-type friction slice experimental rig as claimed in claim 6, it is characterised in that the speed probe is hall sensing
Device.
8. a kind of test method of Wet-type friction slice experimental rig, it is characterised in that the wet type described in usage right requirement 1-7
Friction plate experimental rig, its specific test procedure is as follows：
Step one：By the temperature sensor and the electric control gear, it is T that record starts temperature during experiment0；
Step 2：The hydraulic gear-shifting clutch separation, it is Q to adjust valve regulation cooling oil oil inlet quantity by the cooling oil0；It is logical
The input speed stabilization of the speed probe and electric control gear control hydraulic shift clutch frock is crossed in n0；
Step 3：The hydraulic gear-shifting clutch is combined, and controls hydraulic pressure to change by the fuel-quantity transducer and the electric control gear
The oil inlet quantity of shelves clutch frock, by adjusting the hydraulic shift clutch frock oil inlet quantity q1, according toAdjust the moment of friction m1；Wherein, ω is the rotating speed of wet clutch；μ is cooling
Oily dynamic viscosity；RoIt is friction of wet clutch external diameter；RiIt is friction of wet clutch internal diameter；A,a1It is constant；E is certainly
The truth of a matter of right logarithm.
9. a kind of test method of Wet-type friction slice experimental rig, it is characterised in that the wet type described in usage right requirement 1-7
Friction plate experimental rig, its specific test procedure is as follows：
Step one：By the temperature sensor and the electric control gear, it is T that record starts temperature during experiment0；
Step 2：The hydraulic gear-shifting clutch separation, it is Q to adjust valve regulation cooling oil oil inlet quantity by the cooling oil0；It is logical
The oil inlet quantity stabilization of the fuel-quantity transducer and electric control gear control hydraulic shift clutch frock is crossed in q0；
Step 3：The hydraulic gear-shifting clutch is combined, and controls hydraulic pressure to change by the speed probe and the electric control gear
The input speed of shelves clutch frock, by the input speed n for adjusting the hydraulic shift clutch frock1, according toAdjust the moment of friction m2；Wherein, ω is the rotating speed of wet clutch；μ is cooling
Oily dynamic viscosity；RoIt is friction of wet clutch external diameter；RiIt is friction of wet clutch internal diameter；B,a2It is constant；E is certainly
The truth of a matter of right logarithm.
10. the test method of Wet-type friction slice experimental rig as claimed in claim 8 or 9, it is characterised in that the step 2
In by the cooling oil adjust valve regulation cooling oil oil inlet quantity.
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| CN106197789B (en) * | 2016-06-27 | 2019-02-19 | 北京交通大学 | Moment of friction loading system and its loading method |
| CN109297706B (en) * | 2018-06-26 | 2023-09-15 | 北京信息科技大学 | Device and method for testing influence of interface morphology on slip and friction characteristics of wet clutch |
| CN112284723B (en) * | 2020-10-30 | 2022-02-11 | 东风汽车集团有限公司 | Wet clutch sliding friction durability test method |
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| US6044697A (en) * | 1996-05-14 | 2000-04-04 | Toyota Jidosha Kabushiki Kaisha | Wet clutch break-in method and apparatus |
| CN102269678A (en) * | 2011-05-13 | 2011-12-07 | 重庆市蓝黛实业有限公司 | Testing device for temperature measurement of wet multi-plate clutch friction steel disc |
| CN103913310A (en) * | 2012-12-28 | 2014-07-09 | 大众汽车有限公司 | Method for testing function of dual clutch assembly |
| CN204924665U (en) * | 2015-09-23 | 2015-12-30 | 中国人民解放军装甲兵技术学院 | Wet friction piece test device |
-
2015
- 2015-09-23 CN CN201510610903.6A patent/CN105092245B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6044697A (en) * | 1996-05-14 | 2000-04-04 | Toyota Jidosha Kabushiki Kaisha | Wet clutch break-in method and apparatus |
| CN102269678A (en) * | 2011-05-13 | 2011-12-07 | 重庆市蓝黛实业有限公司 | Testing device for temperature measurement of wet multi-plate clutch friction steel disc |
| CN103913310A (en) * | 2012-12-28 | 2014-07-09 | 大众汽车有限公司 | Method for testing function of dual clutch assembly |
| CN204924665U (en) * | 2015-09-23 | 2015-12-30 | 中国人民解放军装甲兵技术学院 | Wet friction piece test device |
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