CN109187010A - A kind of belt transmission system dynamic performance and testing - Google Patents
A kind of belt transmission system dynamic performance and testing Download PDFInfo
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- CN109187010A CN109187010A CN201810763041.4A CN201810763041A CN109187010A CN 109187010 A CN109187010 A CN 109187010A CN 201810763041 A CN201810763041 A CN 201810763041A CN 109187010 A CN109187010 A CN 109187010A
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- belt
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- idle pulley
- belt transmission
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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
- G01M13/023—Power-transmitting endless elements, e.g. belts or chains
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
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Abstract
The present invention relates to a kind of belt transmission system dynamic performance and testings, including test platform, servo motor, input shaft, driving wheel, belt, driven wheel, output shaft, stretcher, idle pulley；Oscillation crosswise with section when laser displacement sensor is for measuring belt operating；The reflective pulse that the reflective sheeting pasted on laser speed probe combination driving wheel, driven wheel generates is for measuring revolving speed；For pressure sensor for measuring the belt pressing force that idle pulley is subject to, inverse acquires belt tension；Potentiometer is for measuring the shimmy of stretcher；Magnetic powder brake is used to provide load torque for belt transmission system, and torque sensor is used to measure the load torque value of belt transmission system.Structure is simple, easy to accomplish, cost is relatively low, a variety of belt transmission system dynamic characteristic test platforms can be transform as by replacing belt pulley type, as the experimental verification platform of belt transmission system kinetic model, the design for engine accessory power rating transmission system provides guidance.
Description
Technical field
The present invention relates to belt transmission system dynamic performance testing platforms, belong to mechanical transmission fields.
Background technique
Belt transmission system, especially ribbed V-belt drives system are widely used in engine accessory wheel system, mainly by
The attachmentes such as V-ribbed belt, crankshaft pulley, stretcher, alternator pulley, Water-pump belt wheel, oil pump belt wheel, air conditioner compressor belt pulley
Wheel composition.V-ribbed belt is smaller compared to classical V-belt bending stiffness, while having more wedges (contact area is big), therefore V-ribbed belt passes
Dynamic system structure arrangement is more compact, bearing capacity is stronger, and the attachment driven is more.Stretcher is due to including spring damping
Mechanism is mainly used for automatically adjusting belt tension, avoids V-ribbed belt skidding and tension fluctuation excessive, inhibits ribbed V-belt drives system
Vibration and noise when system operation.
The dynamic characteristic of ribbed V-belt drives system will directly affect the working performance of engine accessory power rating, and then influence entire hair
The functional reliability and comfort of motivation or even vehicle, therefore the overall dynamics for comprehensively, accurately grasping ribbed V-belt drives system are special
Property just seems increasingly important.The main dynamic characteristic of ribbed V-belt drives system includes band-wheel slip rate, the oscillation crosswise of V-ribbed belt
The angle fluctuation of the tension fluctuation of twisting vibration, V-ribbed belt with system, each attachment belt wheel, tensioner arm it is shimmy etc..V-ribbed belt
Transmission system itself is a complicated structural system, in the work course the movement phase between belt and each attachment belt wheel
Mutual coupling influences each other.Mainly engine accessory wheel system is designed and is arranged by the method for theory analysis at present, but is managed
A large amount of simplification have all been carried out to V-ribbed belt and each attachment wheel by analysis, the dynamic of ribbed V-belt drives system can not be accurately reflected
Performance, cause the ribbed V-belt drives system many times designed V-ribbed belt tension fluctuation be excessive in actual work, V-ribbed belt and
Phenomena such as bearing up pulley premature abrasion, service life is short, entire driveline vibrations noise is excessive.So only proposing to send out by theory analysis
The design scheme of motivation accessory wheel system has been unable to meet the requirement to engine accessory wheel system more high workability energy at this stage, needs auxiliary
Theoretical model is verified and improved with experiment.But in actual work, since the structure of engine accessory wheel system was arranged
It is unable to measure, seriously affects attached to designed engine in the tension fluctuation etc. of the factors such as compact, many dynamic characteristics such as band
The performance evaluation of part train.
Summary of the invention
In view of the above technical problems, the present invention is intended to provide a kind of belt transmission system dynamic performance and testing, by right
The dynamic characteristic of belt transmission system carries out more comprehensive test, and belt transmission system Theoretical Design and analysis is combined to carry out pair
Than, verifying, so that accurate judgement is made to the performance evaluation of engine accessory wheel system, particularly suitable for ribbed V-belt drives
The dynamic performance testing of system.
For this purpose, the technical scheme adopted by the invention is as follows: a kind of belt transmission system dynamic performance and testing, including test
Platform, and it is mounted on the servo motor on test platform and being sequentially connected, input shaft, driving wheel, belt, driven wheel and output
Axis is provided with stretcher above the belt, idle pulley is provided with below belt, and idle pulley is exactly in belt downside band section
Center position, further include laser displacement sensor, laser speed probe, pressure sensor, potentiometer, torque sensor and
Magnetic powder brake；
The laser displacement sensor totally two, the upper and lower two sides of belt are fixed on by respective mounting bracket respectively,
And the rotation direction of the laser head vertical strap of each laser displacement sensor, the transverse-vibration with section when for measuring belt operating
It is dynamic；
The laser speed probe totally two, driving wheel is corresponded to by respective mounting bracket respectively, driven wheel is installed
It is fixed, reflective sheeting is posted in the end of the driving wheel and driven wheel, the laser head of the laser speed probe emits laser
On beam to corresponding driving wheel, driven wheel, and the reflective pulse for combining reflective sheeting to generate is for measuring corresponding driving wheel, driven wheel
Revolving speed；
The pressure sensor is mounted below idle pulley mounting base by pressure sensor mounting base, and the idle pulley is mounted on
In idle pulley mounting base, pressure sensor passes through formula for measuring the belt pressing force that idle pulley is subject toInverse acquires belt tension, wherein F is belt tension, F1For the tensioning of belt side
Power, F2For belt other side tensile force, FPressureFor belt pressing force,For the cornerite of idle pulley and belt；
The potentiometer is mounted on the mandrel end of stretcher, for measuring the shimmy of stretcher；
The front end of the torque sensor is connected by shaft coupling with output the tip of the axis, and the rear end of torque sensor passes through
Another shaft coupling is connected with magnetic powder brake, and the magnetic powder brake is used to provide load torque for belt transmission system, and torque passes
Sensor is used to measure the load torque value of belt transmission system, and revolving speed, the load torque of magnetic powder brake of the servo motor are big
It is small adjustable.
Several T-slots being parallel to each other, the servo electricity are offered on the test platform as a preferred embodiment of the above solution,
Machine, input shaft, output shaft, stretcher, torque sensor and magnetic powder brake pass through the support being respectively equipped with respectively and are installed to survey
On the T-slot for trying platform, and it is provided with adjustable mounting hole on the support of all outfits, to meet adjustable installation, improves
Versatility.
Further, the idle pulley and idler shaft are integrally designed, and are mounted in the idle pulley mounting base of " u "-shaped by bearing,
Bolt passes vertically through to link together in the middle part of idle pulley mounting base bottom center and pressure sensor, and pressure sensor periphery passes through spiral shell
Bolt is fixed on pressure sensor mounting base center of top, pressure sensor mounting base be using steel plate bending at door type frame, door
It is provided with flange at left and right sides of type frame, and is installed on the T-slot of test platform by the adjustable mounting hole on flange；It adopts
With the installation connection type of completely new idle pulley and pressure sensor, it is ensured that the belt that the idle pulley that pressure sensor measures is subject to compresses
Power is accurate, while reducing the occupied space of installation, keeps overall structure more compact.
Further, the belt is that V-ribbed belt, flat rubber belting, V band or synchronous belt, the driving wheel pass through circumferentially uniformly distributed spiral shell
Bolt is fixed on the shaft shoulder of input shaft, and the both ends of input shaft pass through bearing respectively and are mounted on shared support, in conjunction with bearing
Outer support end cap carries out axial limiting；The driven wheel is fixed on the shaft shoulder of output shaft by circumferentially uniformly distributed bolt, defeated
The both ends of shaft pass through bearing respectively and are mounted on shared support, in conjunction with bearing outside support end cap carry out axial limiting,
Versatility is good, and is able to achieve the Quick universal of various belts.
Beneficial effects of the present invention:
1) dynamic characteristic that can more fully measure belt transmission system, is achieved that belt in particular by easy device
The measurement of dynamic tension produces unexpected technical effect；
2) relevant design and theory analysis can be closed by the belt transmission system dynamic characteristic parameter that measurement obtains
The evaluation and verifying of reason, this is designed belt transmission system and subsequent improvement all has important directive significance；
3) motor speed, load torque size is adjustable, the dynamic under belt transmission system difference operating condition can be reacted comprehensively
Performance；
4) V-ribbed belt belt wheel, flat rubber belting belt wheel, the V band belt wheels such as belt wheel, Toothed belt pulley are common to, and by equal at the shaft shoulder
Cloth tapped through hole is connected, and suitable for the dynamic performance testing of various types belt transmission system, versatility is higher；
In conclusion the configuration of the present invention is simple, easy to accomplish, cost is relatively low, can be transformed by replacing belt pulley type
By increasing more belt wheels and load, mould is able to achieve on this basis for a variety of belt transmission system dynamic characteristic test platforms
The dynamic characteristic test for intending increasingly complex belt transmission system, as the experimental verification platform of belt transmission system kinetic model,
And then for the design of engine accessory power rating transmission system guidance is provided, it avoids relying solely on theory analysis and not can accurately reflect V belt translation
The dynamic property of system causes the belt transmission system of design to fluctuate in actual work excessive, and belt and tensioning wheel premature abrasion make
It is short with the service life, phenomena such as entire driveline vibrations noise is excessive.
Detailed description of the invention
Fig. 1 is perspective view of the invention.
Fig. 2 is the A direction view of Fig. 1.
Fig. 3 is the explosive view of driving wheel, input shaft and support.
Fig. 4 is test and control principle drawing of the invention.
Specific embodiment
By way of example and in conjunction with the accompanying drawings, the invention will be further described:
In conjunction with shown in Fig. 1-Fig. 2, a kind of belt transmission system dynamic performance and testing, mainly by test platform 1, servo
Motor 2, driving wheel 4, belt 5, driven wheel 6, output shaft 7, stretcher 8, idle pulley 9, laser displacement sensor 10, swashs at input shaft 3
Light speed probe 11, pressure sensor 12, potentiometer 13, torque sensor 14, magnetic powder brake 15, pressure sensor installation
The composition such as seat 16, idle pulley mounting base 17, shaft coupling 18.
Servo motor 2, input shaft 3, driving wheel 4, belt 5, driven wheel 6 and output shaft 7 are mounted on test after being sequentially connected
On platform 1.The top of belt 5 is provided with stretcher 8, and the lower section of belt 5 is provided with idle pulley 9, to constitute a V belt translation system
System.Driving wheel 4, driven wheel 6, idle pulley 9 and stretcher 8 tensioning wheel installation in the same plane, and be connected with belt 5.Servo
It is provided with shaft coupling 18 between motor 2 and input shaft 3, belt transmission system is driven by input shaft 3.2 revolving speed of servo motor is best
It is to be controlled by the control program and control circuit write by labview.The tensioning wheel of stretcher 8 can allow belt wheel central axis from
By rotating, can also swing back and forth around rear center of stretcher elder generation.Stretcher 8 is bolted on the mounting plate of outfit, can be led to
Overregulate the installation site and angle of stretcher on a mounting board, the initial tension of adjustable belt.
For the dynamic performance testing for carrying out belt transmission system, it is also necessary to laser displacement sensor 10, laser speed probe
11,15 5 pressure sensor 12, potentiometer 13, torque sensor 14, magnetic powder brake core components.
Laser displacement sensor 10 totally two, one of them is fixed on the upside of belt 5 by mounting bracket, another
The downside of belt 5 is fixed on by mounting bracket.The operating side of the laser head vertical strap 5 of each laser displacement sensor 10
To the oscillation crosswise with section when for measuring belt operating.
Laser speed probe 11 totally two, one of them corresponds to the installation of driving wheel 4 by mounting bracket and fixes, and in addition one
It is a that the installation fixation of driven wheel 6 is corresponded to by mounting bracket.Reflective sheeting is posted in the end of driving wheel 4 and driven wheel 6, laser turns
On the laser head transmitting laser beam to corresponding driving wheel 4, driven wheel 6 of fast sensor 11, and it is reflective to combine reflective sheeting to generate
Pulse is used to measure the revolving speed of corresponding driving wheel 4, driven wheel 6.Every turn of the reflecting sign on driving wheel 4, driven wheel 6 will generate
One reflective pulse, then be converted to by the laser head of laser speed probe 11 the TTL electric signal of 0-5V.
Pressure sensor 12 is mounted on the lower section of idle pulley mounting base 17 by pressure sensor mounting base 16, and idle pulley 9 is installed
In idle pulley mounting base 17, pressure sensor 12 passes through formula for measuring the belt pressing force that idle pulley 9 is subject toInverse acquires belt tension.Wherein, F is belt tension, F1For the tensioning of belt side
Power, F2For belt other side tensile force, FPressureFor belt pressing force,For the cornerite of idle pulley and belt.
Belt is transmitted to pressure sensor 12 by bearing and idle pulley mounting base 17 to the pressing force of idle pulley 9, such as Fig. 2 institute
Show, the cornerite of idle pulley and belt isBecause idle pulley does not load, and to be exactly in belt band section center position (lazy for idle pulley
Wheel two sides band section is arranged symmetrically), it is possible to think idle pulley wherein side belt tension F1With other side tension F2It is equally big, this
Sample passes through formulaThe tension F of belt can be calculated.
Potentiometer 13 is mounted on the mandrel end of stretcher 8, for measuring the shimmy of stretcher 8.
The front end of torque sensor 14 is connected by shaft coupling 18 with the end of output shaft 7, the rear end of torque sensor 14
It is connected by another shaft coupling 18 with magnetic powder brake 15, magnetic powder brake 15 is used to provide load torque for belt transmission system,
Torque sensor 14 is used to measure the load torque value of belt transmission system, the load of the revolving speed, magnetic powder brake 15 of servo motor 2
Torque is adjustable.The load of belt transmission system is provided by magnetic powder brake 15, controls input magnetic powders brake by controller
The size of current and then control load torque size of device.Torque sensor 14 preferably provides 24V power supply, exports as 0-5V electricity
Press signal.
Preferably, several T-slot 1a being parallel to each other, servo motor 2, input shaft 3, output are offered on test platform 1
Axis 7, stretcher 8, torque sensor 14 and magnetic powder brake 15 are installed to test platform 1 by the support being respectively equipped with respectively
On T-slot 1a, it is provided with adjustable mounting hole on the support of all outfits, realizes adjustable installation.
In addition, idle pulley 9 is preferably integrally designed with idler shaft, and it is mounted in the idle pulley mounting base 17 of " u "-shaped by bearing.
Bolt passes vertically through to link together in the middle part of 17 bottom center of idle pulley mounting base and pressure sensor 12,12 periphery of pressure sensor
It is bolted on 16 center of top of pressure sensor mounting base.Pressure sensor mounting base 16 be using steel plate bending at
Door type frame is provided with flange at left and right sides of door type frame, and is installed to test platform 1 by the adjustable mounting hole on flange
On T-slot 1a.The mounting hole of 12 periphery of pressure sensor setting is preferably 6 uniformly distributed counter sinks.
Referring to figs 1 and 3, belt 5 can pass through circumferential equal for V-ribbed belt, flat rubber belting, V band or synchronous belt, driving wheel 4
The bolt of cloth is fixed on the shaft shoulder 3a of input shaft 3, and the both ends of input shaft 3 pass through bearing 19 respectively and are mounted on shared support
On, axial limiting is carried out in conjunction with the support end cap 20 outside bearing 19.Equally, driven wheel 6 is fixed by circumferentially uniformly distributed bolt
On the shaft shoulder of output shaft 7, the both ends of output shaft 7 pass through bearing respectively and are mounted on shared support, in conjunction with bearing outside
Support end cap carries out axial limiting.
In conjunction with shown in Fig. 1, Fig. 4, which also needs to be equipped with test and control section, test and control
Part includes data acquisition unit, control unit and industrial personal computer.Laser displacement sensor 10, laser speed probe 11, pressure
The voltage signal that sensor 12, potentiometer 13, torque sensor 14 measure by data acquisition unit by being acquired after signal condition
After be input to industrial personal computer and show.Data acquisition unit includes data collecting card, the test program based on labview software programming
And test interface, the real-time display band test datas such as wheel speed, belt transverse vibrational displacement, and test data is saved in specified
Path.Servo motor revolving speed, while the electric current for passing through control unit are controlled by industrial personal computer and the electric machine controller of control unit
The size of current of controller control input magnetic powder brake and then the braking moment size for controlling magnetic powder brake.
Claims (4)
1. a kind of belt transmission system dynamic performance and testing, including test platform (1), and be mounted on test platform (1)
And servo motor (2), input shaft (3), driving wheel (4), belt (5), driven wheel (6) and the output shaft (7) being sequentially connected, it is described
It is provided with stretcher (8), is provided with below belt (5) idle pulley (9) above belt (5), and idle pulley (9) is exactly in belt
(5) center position of downside band section, it is characterised in that:
Further include laser displacement sensor (10), laser speed probe (11), pressure sensor (12), potentiometer (13), turn round
Square sensor (14) and magnetic powder brake (15)；
The laser displacement sensor (10) totally two, is fixed on upper and lower the two of belt (5) by respective mounting bracket respectively
Side, and the rotation direction of the laser head vertical strap (5) of each laser displacement sensor (10), band when for measuring belt operating
The oscillation crosswise of section；
The laser speed probe (11) totally two, corresponds to driving wheel (4), driven wheel by respective mounting bracket respectively
(6) installation is fixed, and posts reflective sheeting, the laser speed probe (11) in the end of the driving wheel (4) and driven wheel (6)
Laser head transmitting laser beam to corresponding driving wheel (4), driven wheel (6) on, and combine reflective sheeting generate reflective pulse use
In the revolving speed for measuring corresponding driving wheel (4), driven wheel (6)；
The pressure sensor (12) is mounted below idle pulley mounting base (17) by pressure sensor mounting base (16), described lazy
Wheel (9) is mounted on idle pulley mounting base (17), and pressure sensor (12) is used to measure the belt pressing force that idle pulley (9) is subject to, and
Pass through formulaInverse acquires belt tension, wherein F is belt tension, F1For belt one
Side tensile force, F2For belt other side tensile force, FPressureFor belt pressing force,For the cornerite of idle pulley and belt；
The potentiometer (13) is mounted on the mandrel end of stretcher (8), for measuring the shimmy of stretcher (8)；
The front end of the torque sensor (14) is connected by shaft coupling (18) with the end of output shaft (7), torque sensor
(14) rear end is connected by another shaft coupling (18) with magnetic powder brake (15), and the magnetic powder brake (15) is used to pass for band
Dynamic system provides load torque, and torque sensor (14) is used to measure the load torque value of belt transmission system, the servo motor
(2) revolving speed, the load torque size of magnetic powder brake (15) is adjustable.
2. belt transmission system dynamic performance and testing according to claim 1, it is characterised in that: the test platform
(1) several T-slots (1a) being parallel to each other, the servo motor (2), input shaft (3), output shaft (7), stretcher are offered on
(8), torque sensor (14) and magnetic powder brake (15) are installed to the T of test platform (1) by the support being respectively equipped with respectively
On shape slot (1a), and adjustable mounting hole is provided on the support of all outfits.
3. belt transmission system dynamic performance and testing according to claim 2, it is characterised in that: the idle pulley (9) with
Idler shaft integrated design, and be mounted in the idle pulley mounting base (17) of " u "-shaped by bearing, bolt passes vertically through idle pulley mounting base
(17) it links together in the middle part of bottom center and pressure sensor (12), pressure sensor (12) periphery is bolted on pressure
Force snesor mounting base (16) center of top, pressure sensor mounting base (16) be using steel plate bending at door type frame, gate
It is provided with flange at left and right sides of frame, and is installed to the T-slot (1a) of test platform (1) by the adjustable mounting hole on flange
On.
4. belt transmission system dynamic performance and testing according to claim 2, it is characterised in that: the belt (5) is
V-ribbed belt, flat rubber belting, V band or synchronous belt, the driving wheel (4) are fixed on the shaft shoulder of input shaft (3) by circumferentially uniformly distributed bolt
On (3a), the both ends of input shaft (3) pass through bearing (19) respectively and are mounted on shared support, then sympodium holds the support of (19) outside
End cap (20) carries out axial limiting；The driven wheel (6) is fixed on the shaft shoulder of output shaft (7) by circumferentially uniformly distributed bolt,
The both ends of output shaft (7) pass through bearing respectively and are mounted on shared support, in conjunction with bearing outside support end cap carry out it is axial
Limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810763041.4A CN109187010B (en) | 2018-07-12 | 2018-07-12 | Dynamic performance testing device for belt transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810763041.4A CN109187010B (en) | 2018-07-12 | 2018-07-12 | Dynamic performance testing device for belt transmission system |
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| Publication Number | Publication Date |
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| CN109187010A true CN109187010A (en) | 2019-01-11 |
| CN109187010B CN109187010B (en) | 2020-10-30 |
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ID=64935978
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810763041.4A Active CN109187010B (en) | 2018-07-12 | 2018-07-12 | Dynamic performance testing device for belt transmission system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109612617A (en) * | 2019-01-23 | 2019-04-12 | 广州桂博自动化设备有限公司 | Electrically driven curtain test device |
| CN110095283A (en) * | 2019-05-16 | 2019-08-06 | 西安交通大学 | A kind of nonlinear dynamic behavior test device considering the excitation of bearing time-varying |
| CN110220693A (en) * | 2019-07-16 | 2019-09-10 | 广州花都通用集团有限公司 | Handrail life testing machine |
| CN110631828A (en) * | 2019-10-25 | 2019-12-31 | 西安工程大学 | Testing device and testing method for power split gear transmission system |
| CN111076930A (en) * | 2019-12-20 | 2020-04-28 | 江苏大学 | Transmission belt simulation loading test device for combine harvester |
| CN111638063A (en) * | 2020-05-19 | 2020-09-08 | 东风汽车集团有限公司 | Test bench of belt transmission error and abnormal sound noise |
| CN112903289A (en) * | 2021-01-19 | 2021-06-04 | 深圳市恩普达工业系统有限公司 | Belt pulley fatigue testing machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612617A (en) * | 2019-01-23 | 2019-04-12 | 广州桂博自动化设备有限公司 | Electrically driven curtain test device |
| CN110095283A (en) * | 2019-05-16 | 2019-08-06 | 西安交通大学 | A kind of nonlinear dynamic behavior test device considering the excitation of bearing time-varying |
| CN110220693A (en) * | 2019-07-16 | 2019-09-10 | 广州花都通用集团有限公司 | Handrail life testing machine |
| CN110631828A (en) * | 2019-10-25 | 2019-12-31 | 西安工程大学 | Testing device and testing method for power split gear transmission system |
| CN111076930A (en) * | 2019-12-20 | 2020-04-28 | 江苏大学 | Transmission belt simulation loading test device for combine harvester |
| CN111638063A (en) * | 2020-05-19 | 2020-09-08 | 东风汽车集团有限公司 | Test bench of belt transmission error and abnormal sound noise |
| CN111638063B (en) * | 2020-05-19 | 2021-04-27 | 东风汽车集团有限公司 | Test bench of belt transmission error and abnormal sound noise |
| CN112903289A (en) * | 2021-01-19 | 2021-06-04 | 深圳市恩普达工业系统有限公司 | Belt pulley fatigue testing machine |
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