CN108398262A - A kind of wet friction subband row's torque test platform and test method - Google Patents

A kind of wet friction subband row's torque test platform and test method Download PDF

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Publication number
CN108398262A
CN108398262A CN201810127263.7A CN201810127263A CN108398262A CN 108398262 A CN108398262 A CN 108398262A CN 201810127263 A CN201810127263 A CN 201810127263A CN 108398262 A CN108398262 A CN 108398262A
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China
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friction
output shaft
oil
torque
input shaft
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CN201810127263.7A
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CN108398262B (en
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王延忠
窦德龙
李圆
汪大鹏
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GUILIN GUIBEI MACHINE CO Ltd
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Beihang University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/02Gearings; Transmission mechanisms
    • G01M13/025Test-benches with rotational drive means and loading means; Load or drive simulation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02Rotary-transmission dynamometers
    • G01L3/04Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The present invention relates to a kind of wet friction subband row's torque test platform and test methods, belong to clutch friction pair testing machine technical field.Driving motor, flying wheel, input shaft, output shaft and torque sensor are sequentially coaxially installed on bearing, and flying wheel is fixed on input shaft;Clutch drum is integrated on input shaft, is evenly distributed with outage on drum, inside is provided with inner spline groove;Integrated cylinder and built-in piston on output shaft, on axis one end be provided with external splines and it is interior set lubricating oil duct, multiple lubricating oil oil outlets are uniformly distributed in axis upper spline side;Torque sensor one end is connected with exporting axis, and the other end is fixed with output end bearing;Friction plate is connected by external splines with the inner spline groove of clutch drum, and pairing steel sheet is connected by the external splines of inner spline gear and output shaft, and friction plate and the axially staggered arrangement of pairing steel sheet can be moved along output shaft.The present invention can measure drag torque when single pair or the multipair friction pair immersion oil being made of friction plate and pairing steel sheet, and test platform structure is uncomplicated.

Description

A kind of wet friction subband row's torque test platform and test method
Technical field
The present invention relates to a kind of wet friction subband row's torque test platform and test methods, belong to the experiment of clutch friction pair Machine technical field.
Background technology
Key components and parts one of of the wet-type multi-chip friction clutch as automatic gearbox, the direct shadow of performance quality Ring automobile gear shift ride comfort and riding comfort.Automobile clutch is tested, mainly there is complete vehicle test and bench test two Kind scheme:Complete vehicle test method is directly reliable, but there are sensor arrangement, installations to be limited by space, and data acquire inconvenience etc. Disadvantage.Currently, the method tested wet-type multi-chip friction clutch mostly uses greatly bench test scheme.Ten in bench test It is exactly the measurement to the secondary drag torque of Wet-type multi-disc friction in clutch, each pair of friction pair of wet clutch to divide important one Between be all flooded with lubricating oil, when, there are when speed discrepancy, the shear action of oil film can produce between the secondary rotating plate of friction and driven disc Raw drag torque, causes Band loss, the transmission efficiency of speed changer is made to reduce.
Currently, specially there are mainly two types of the testing stands of test clutch friction pair drag torque, a kind of design is to use quilt Single secondary rubbing device that test specimen simplifies, is developed as domestic and foreign scholars Wang Bin, Aphale etc. test clutch drag torque Testing stand, but it is not larger with practical wet-type multi-disc friction secondary area, it is unable to the secondary drag torque work of accurate response Wet-type multi-disc friction Condition.Another kind design be simulating brake device operating mode friction clutch testing stand carry out drag torque experiment, such as foreign countries SAE#1 with SAE#2 testing stands, but this method is not suitable for testing the engagement dynamic property of clutch multi-disc friction pair, while measured value It contains and interferes torque caused by bearing friction and churning loss.
Invention content
The technology of the present invention solves the problems, such as:Overcome the deficiencies of the prior art and provide a kind of wet friction pair drag torque examination Test platform and test method, for existing testing stand there are the problem of, change the secondary testing stand existing design of Wet-type multi-disc friction, make dress It sets simple and reliable for structure, can relatively accurately be measured the secondary engaging process punching oil of friction in the secondary cooling oil stream amount of friction and drum Pressure, while the influence that bearing churning loss measures drag torque can be excluded.
The technology of the present invention solution:A kind of wet friction subband row torque test platform, including:Driving motor, flying wheel, Input shaft, output shaft, speed probe, pressure sensor, torque sensor and bearing;Driving motor, input shaft, output shaft and Torque sensor sequentially coaxially connects on motor support base, input terminal bearing and output end bearing, and torque sensor is used for The secondary drag torque in immersion oil of friction that measurement is made of single pair or multipair friction plate and pairing steel sheet, torque sensor one end It is connected with exporting axis, the other end is fixed with output end bearing;Flying wheel is fixed on input shaft;Pressure sensor is mounted on output shaft On the pressure sensor connecting hole of oil cylinder;Input shaft and output shaft arrive the friction plate and pairing steel sheet structure of three pieces by monolithic or two Match merga pass bearing support connection at single pair or multipair friction are secondary;Speed probe is by being fixed on the defeated of driving motor side Enter to hold on bearing, flying wheel embeds the induced magnet of speed probe with speed probe opposite side equal-height position.
Clutch drum is integrated on the input shaft, and the lubricating oil row of 8-10 diameter 3-4mm is evenly distributed on the clutch drum Oilhole, clutch drum inside are provided with inner spline groove installation friction plate;There is integrated cylinder on the output shaft, lives built in integrated cylinder Plug;One end is provided with external splines installation pairing steel sheet on output shaft, and the contact surface formation friction of pairing steel sheet and friction plate is secondary;Output Lubricating oil duct is set inside axis, oil duct includes the lubricating oil oil outlet of the 16-20 diameter 3-4mm in total of main oil gallery and two groups, Main oil gallery arranges that multiple lubricating oil oil outlets are uniformly distributed in external splines side on output shaft along output shaft axis.
The friction plate is connected by external splines with inner spline groove, and pairing steel sheet passes through outer on inner spline gear and output shaft Spline connects.
The axially staggered arrangement of friction plate and pairing steel sheet of the monolithic or two to three pieces can be moved axially along output shaft.
Clutch drum is integrated on the input shaft, and multiple oil-through-holes are evenly distributed on the clutch drum, are opened on the inside of clutch drum There is inner spline groove that friction plate is installed.
Described torque sensor one end is connected with exporting axis by bolt, and the other end is solid by bolt and output end bearing It is fixed.
The flying wheel is circumferentially fixed on input shaft by flat key.
A kind of test method of wet friction subband row torque test platform, step are:When testing stand works, driving motor will Friction plate rotating speed on flying wheel, input shaft and input shaft in clutch drum disengages after being increased to desired speed, flying wheel band Driven input shaft and friction plate rotation, by oil-filled promotion piston in external hydraulic station control cylinder by pairing steel sheet and friction plate It compresses, clutch combines, and the lubricating oil of certain pressure is injected clutch drum by setting lubricating oil duct inside output shaft Inside play the role of lubrication, lubricating oil is thrown out of clutch drum by the centrifugal action that clutch rotates from outage;Pass through torsion The drag torque for the friction pair that square sensor measurement friction plate and pairing steel sheet are constituted, the pressure being placed on output shaft oil cylinder pass Sensor measures oil pressure in oil cylinder, is placed in induction of the speed probe on input terminal bearing using speed probe on flying wheel Magnet measures input shaft rotating speed, and the signal of measurement is acquired and handles through multi-channel data acquisition board and computer.
The advantages of the present invention over the prior art are that:Wet friction subband row's torque test platform of the present invention can measure Drag torque when single pair or the multipair friction pair immersion oil being made of friction plate and pairing steel sheet, and various kinds of sensors is outer It sets, installation is easy, and data acquisition is convenient, and overall structure is simple and reliable.
Description of the drawings
Fig. 1 is that the Wet-type multi-disc friction subband of the present invention arranges the sectional view of torque test platform;
Fig. 2 is the testing stand total system sectional view of the present invention;
Fig. 3 is the testing stand axonometric drawing of the present invention;
Fig. 4 is the output shaft stereogram of the present invention;
Fig. 5 is the input shaft stereogram of the present invention;
Reference numeral meaning in figure:
1-torque sensor;2-the first group hexagon-headed bolt;3-output shaft plug screws;4-output end bearings;5-outputs Axis;6-pistons;7-input shafts;8-the first deep groove ball bearing;9-flying wheels;10-input terminal bearings;11-the second zanjon Ball bearing;12-angular contact ball bearings;13-the first circlip for shaft;14-the first steel disc tabletting;15-friction plates;16— Pairing steel sheet;17-the second steel disc tabletting;18-hole sealing rings;19-axle sealing rings;20-third deep groove ball bearings; 21-ring flanges;22-the second group hexagon-headed bolt;23-driving motors;24-motor support bases;25-speed probes;26— Induced magnet;27-pressure sensors;28-lubricating oil oil outlets;29-pressure oil oil filler points;30-pressure sensors connect Hole;31-lubricating oil inlets;32-outages;
Specific implementation mode
The following describes the present invention in detail with reference to the accompanying drawings and embodiments.
As shown in Figs. 1-3, wet friction subband row torque test platform proposed by the present invention includes:Driving motor 23, inertia It is wheel 9, input shaft 7, output shaft 5, speed probe 25, pressure sensor 27 and torque sensor 1 and input terminal bearing 10, defeated Outlet bearing 4 and motor support base 24.Driving motor 23 is connect with input shaft 7 by shaft coupling, and flying wheel 9 is circumferentially solid by flat key Due on input shaft 7, input shaft 7 and output shaft 5 constitute the secondary cooperation of multipair friction by multipair friction plate 15 and pairing steel sheet 16 And by 12 support connection of angular contact ball bearing, input shaft 7 is supported on the first deep groove ball bearing 8 and the second deep groove ball bearing 11 On input terminal bearing 10, output shaft 5 is supported on third deep groove ball bearing 20 on output end bearing 4.Output shaft 5 and torque sensing Device 1 is connected by the second group of hexagon-headed bolt 22 of ring flange 21, last driving motor 23, input shaft 7, output shaft 5 and torque Sensor 1 is sequentially coaxially connected is mounted on motor support base 24, input terminal bearing 10 and output end bearing 4 by deep groove ball bearing On.
As shown in figure 5, integrating clutch drum on input shaft 7, circumferencial direction is evenly distributed with 8 a diameter of 3 millimeters of oil extractions on drum Hole 32, drum inside are provided with inner spline groove.
As shown in figure 4, integrated cylinder and built-in piston 6 on output shaft 5, on piston 6 inside and outside have circular trough Hole sealing ring 18 and axle sealing ring 19 are placed, the pressure oil oil filler point 29 being connected with hydraulic pump and installation pressure are provided on oil cylinder The pressure sensor connecting hole 30 of force snesor 27, one end is provided with external splines and built-in lubricating oil duct on axis, and main oil gallery is along axis Line direction, and two groups of (every group 8) lubricating oil oil outlets 28 are set and are uniformly distributed in external splines side on axis, other end output Axis plug screw 3, which is sealed, prevents outflow of lubrication oil lubricating oil duct.1 one end of torque sensor by ring flange 21 with bolt with it is defeated Shaft 5 connects, and the other end is fixed by first group of hexagon-headed bolt 2 and output end bearing 4.Friction plate 15 by external splines and from The inner spline groove connection of clutch drum, pairing steel sheet 16 are connect by inner spline gear with the external splines on output shaft, multipair friction plate With the axially staggered arrangement of pairing steel sheet, each Friction Disk Surface and pairing steel sheet surface constitute friction pair, can be along defeated Shaft moves axially.
Below in conjunction with attached drawing, the specific course of work for introducing testing stand of the present invention:
When testing stand works, driving motor 23 is by 15 rotating speed liter of clutch drum inner attrition piece on flying wheel 9 and input shaft After height to expected rotating speed (such as 1000r/min), driving motor 23 disengages, and flying wheel 9 is rotated with driven input shaft 7 and friction plate 15, The lubricating oil of certain pressure is injected by lubricating oil inlet 31 and output slinger in clutch drum by external hydraulic station Play the role of lubrication, lubricating oil is flooded between constituting each pair to friction by friction plate 15 and 16 each surface of pairing steel sheet Liquid, there is larger speed discrepancies, the shear action of oil film will produce between composition friction secondary friction plate 15 and pairing steel sheet 16 Dragging torque, that is, drag torque above-mentioned causes Band loss, lubricating oil to be constantly thrown out of by the centrifugal action that clutch rotates Clutch drum, the size of wet friction pair drag torque can be by the torque sensor 1 that is connected with output shaft 5 in the process It measures.
When control hydraulic station is filled with hydraulic oil, promotion piston 6 and the second steel disc tabletting 17 into oil cylinder by pairing steel sheet 16 With the compression of friction plate 15, the engagement of multi-disc friction pair, the first steel disc tabletting 14 and the first circlip for shaft 13 to the stroke of piston 6 Play the role of axial limiting, the variation of cohesive process wet friction pair drag torque can be measured by torque sensor 1, Finally under the action of frictional force, the rotating speed of the friction plate 15 in flying wheel 9 and clutch drum gradually decreases to zero.Experimentation In wet friction pair drag torque measured by torque sensor 1, pressure sensor 27 measures in-oil cylinder oil pressure, revolution speed sensing Induced magnet 26 on device 25 and flying wheel measures 7 rotating speed of input shaft, and is carried out by multi-channel data acquisition board and computer Signal sampling and processing.The signal acquisition of speed probe 25 is to record pulse number in the sampling time by data collecting card, I.e. induced magnet 26 turns over the number of speed probe 25, to obtain speed-frequency, by computer with data collecting card Tachometer value is calculated in mating software;1 output voltage signal of torque sensor is obtained by data collecting card again by computer The range of the voltage value that upper and mating data collecting card software measures and torque sensor 1 converts to obtain surveyed torque value.
The present invention can measure drag torque when single pair or the multipair friction pair immersion oil being made of friction plate and pairing steel sheet, And test platform structure is uncomplicated.
Above example is provided just for the sake of the description purpose of the present invention, and is not intended to limit the scope of the present invention.This The range of invention is defined by the following claims.It does not depart from spirit and principles of the present invention and the various equivalent replacements made and repaiies Change, should all cover within the scope of the present invention.

Claims (8)

1. a kind of wet friction subband arranges torque test platform, which is characterized in that including:It is driving motor, flying wheel, input shaft, defeated Shaft, speed probe, pressure sensor, torque sensor and bearing;Driving motor, input shaft, output shaft and torque sensing Device sequentially coaxially connects on motor support base, input terminal bearing and output end bearing, and torque sensor is for measuring by list Pair or the secondary drag torque in immersion oil of friction that constitutes of multipair friction plate and pairing steel sheet, torque sensor one end and output shaft Connection, the other end are fixed with output end bearing;Flying wheel is fixed on input shaft;Pressure sensor is mounted on the pressure of output shaft oil cylinder On force snesor connecting hole;Input shaft and output shaft by monolithic or two to three pieces friction plate and pairing steel sheet constitute single pair or Multipair friction is secondary to match merga pass bearing support connection;Speed probe is fixed on the input terminal bearing of driving motor side, Flying wheel embeds the induced magnet of speed probe with the equal-height position of speed probe opposite side.
2. wet friction subband according to claim 1 arranges torque test platform, it is characterised in that:It is integrated on the input shaft Clutch drum, the lubricating oil outage of uniformly distributed 8-10 diameter 3-4mm on the clutch drum, clutch drum inside is provided with interior flower Keyway installs friction plate;There are integrated cylinder, integrated cylinder built-in piston on the output shaft;One end is provided with external splines on output shaft Pairing steel sheet is installed, the contact surface formation friction of pairing steel sheet and friction plate is secondary;Lubricating oil duct, oil duct are set inside output shaft Include the lubricating oil oil outlet of the 16-20 diameter 3-4mm in total of main oil gallery and two groups, main oil gallery is arranged along output shaft axis, more A lubricating oil oil outlet is uniformly distributed in external splines side on output shaft.
3. wet friction subband according to claim 2 arranges torque test platform, it is characterised in that:The friction plate passes through outer Spline is connected with clutch drum inner spline groove, and pairing steel sheet is connect by inner spline gear with the external splines on output shaft.
4. wet friction subband according to claim 1 or 2 arranges torque test platform, it is characterised in that:The monolithic or two The axially staggered arrangement of friction plate and pairing steel sheet to three pieces can be moved axially along output shaft.
5. wet friction subband according to claim 2 arranges torque test platform, it is characterised in that:It is integrated on the input shaft Clutch drum, uniformly distributed multiple outages on the clutch drum are provided with inner spline groove installation friction plate on the inside of clutch drum.
6. wet friction subband according to claim 1 arranges torque test platform, it is characterised in that:The torque sensor one End is connected with exporting axis by bolt, and the other end is fixed by bolt and output end bearing.
7. wet friction subband according to claim 1 arranges torque test platform, it is characterised in that:The flying wheel passes through flat Key is circumferentially fixed on input shaft.
8. using the test method of any wet friction subband row's torque test platform of claim 1 to 7, feature exists In step is:When testing stand works, driving motor is by the friction plate on flying wheel, input shaft and input shaft in clutch drum Rotating speed disengages after being increased to desired speed, and flying wheel band driven input shaft and friction plate rotate, and passes through external hydraulic pressure stand control oil Oil-filled promotion piston compresses pairing steel sheet and friction plate in cylinder, clutch engagement, and the lubricating oil of certain pressure is passed through defeated Plays the role of lubrication in the lubricating oil duct injection clutch drum being arranged inside shaft, lubricating oil by clutch rotate from Heart effect is thrown out of clutch drum from outage;The friction pair that friction plate and pairing steel sheet are constituted is measured by torque sensor Drag torque is placed in the pressure sensor on output shaft oil cylinder and measures oil pressure in oil cylinder, is placed on input terminal bearing and turns Fast sensor measures input shaft rotating speed using the induced magnet of speed probe on flying wheel, and the signal of measurement is through multi-channel data Capture card and computer are acquired and handle.
CN201810127263.7A 2018-02-08 2018-02-08 Wet friction pair belt row torque test bed and test method Active CN108398262B (en)

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CN201810127263.7A CN108398262B (en) 2018-02-08 2018-02-08 Wet friction pair belt row torque test bed and test method

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Cited By (11)

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Publication number Priority date Publication date Assignee Title
CN109238685A (en) * 2018-11-12 2019-01-18 科力远混合动力技术有限公司 Gearbox wet brake test tool
CN109357856A (en) * 2018-11-12 2019-02-19 科力远混合动力技术有限公司 A kind of gearbox wet brake test tool
CN109975017A (en) * 2019-04-12 2019-07-05 沈阳工业大学 Rub secondary comprehensive test instrument for performance
CN110567707A (en) * 2019-08-14 2019-12-13 中国北方车辆研究所 Friction plate impact plastic deformation test device
CN110567689A (en) * 2019-05-22 2019-12-13 四川航天神坤科技有限公司 High-frequency energy-saving friction load simulation device
CN111006864A (en) * 2019-11-22 2020-04-14 中国航发西安动力控制科技有限公司 Spline shaft flexibility detection method and detection tool
CN112197961A (en) * 2020-09-22 2021-01-08 施启明 Testing device for testing anti-torque performance of elevator main shaft through inertial impact
CN113108047A (en) * 2021-04-21 2021-07-13 湖南工程学院 Automatic transmission gear pair oil film thickness estimation control system and method
CN113295406A (en) * 2021-05-20 2021-08-24 中国第一汽车股份有限公司 Device and method for calibrating axial pressure of clutch of transfer case assembly
CN113916424A (en) * 2021-10-14 2022-01-11 北京航空航天大学 Hydraulic power measurement load device and method suitable for high-power high-rotating-speed turbine platform
CN116754220A (en) * 2023-06-21 2023-09-15 北京理工大学 High-speed friction motion gesture measuring device for wet clutch friction pair

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Cited By (18)

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Publication number Priority date Publication date Assignee Title
CN109357856B (en) * 2018-11-12 2020-08-28 科力远混合动力技术有限公司 Gearbox wet brake test tool
CN109357856A (en) * 2018-11-12 2019-02-19 科力远混合动力技术有限公司 A kind of gearbox wet brake test tool
CN109238685A (en) * 2018-11-12 2019-01-18 科力远混合动力技术有限公司 Gearbox wet brake test tool
CN109238685B (en) * 2018-11-12 2020-08-28 科力远混合动力技术有限公司 Gearbox wet brake test tool
CN109975017A (en) * 2019-04-12 2019-07-05 沈阳工业大学 Rub secondary comprehensive test instrument for performance
CN109975017B (en) * 2019-04-12 2021-09-07 沈阳工业大学 Comprehensive tester for friction pair performance
CN110567689A (en) * 2019-05-22 2019-12-13 四川航天神坤科技有限公司 High-frequency energy-saving friction load simulation device
CN110567689B (en) * 2019-05-22 2021-06-15 四川航天神坤科技有限公司 High-frequency energy-saving friction load simulation device
CN110567707A (en) * 2019-08-14 2019-12-13 中国北方车辆研究所 Friction plate impact plastic deformation test device
CN111006864A (en) * 2019-11-22 2020-04-14 中国航发西安动力控制科技有限公司 Spline shaft flexibility detection method and detection tool
CN112197961A (en) * 2020-09-22 2021-01-08 施启明 Testing device for testing anti-torque performance of elevator main shaft through inertial impact
CN113108047A (en) * 2021-04-21 2021-07-13 湖南工程学院 Automatic transmission gear pair oil film thickness estimation control system and method
CN113295406A (en) * 2021-05-20 2021-08-24 中国第一汽车股份有限公司 Device and method for calibrating axial pressure of clutch of transfer case assembly
CN113295406B (en) * 2021-05-20 2022-09-09 中国第一汽车股份有限公司 Device and method for calibrating axial pressure of clutch of transfer case assembly
CN113916424A (en) * 2021-10-14 2022-01-11 北京航空航天大学 Hydraulic power measurement load device and method suitable for high-power high-rotating-speed turbine platform
CN113916424B (en) * 2021-10-14 2024-02-09 北京航空航天大学 Hydraulic dynamometer load device suitable for high-power high-rotation-speed turbine platform and method thereof
CN116754220A (en) * 2023-06-21 2023-09-15 北京理工大学 High-speed friction motion gesture measuring device for wet clutch friction pair
CN116754220B (en) * 2023-06-21 2024-06-04 北京理工大学 High-speed friction motion gesture measuring device for wet clutch friction pair

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