CN109655261A - Inhibit the device of speed ripple in gear train assembly tap test - Google Patents
Inhibit the device of speed ripple in gear train assembly tap test Download PDFInfo
- Publication number
- CN109655261A CN109655261A CN201910068887.0A CN201910068887A CN109655261A CN 109655261 A CN109655261 A CN 109655261A CN 201910068887 A CN201910068887 A CN 201910068887A CN 109655261 A CN109655261 A CN 109655261A
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- gear train
- train assembly
- transmission shaft
- measured object
- pillar
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- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 10
- 238000012546 transfer Methods 0.000 claims abstract description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 description 19
- 238000009434 installation Methods 0.000 description 16
- 238000013016 damping Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012827 research and development Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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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
- G01M13/028—Acoustic or vibration analysis
-
- 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
- G01M13/021—Gearings
-
- 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
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses the devices for inhibiting speed ripple in a kind of gear train assembly tap test, including dynamometer machine, the transmission shaft that connect with the dynamometer machine and for the damped flywheel of the transfer of torque between the output end and transmission shaft of measured object for providing measured object load torque, damped flywheel be driven axis connection.Inhibit the device of speed ripple in gear train assembly tap test of the present invention, structure is simple, and easily fabricated, securely and reliably, setting inhibits the damped flywheel of the fluctuation of speed, it is ensured that the accuracy of gear train assembly beat noise test result.
Description
Technical field
The invention belongs to field of automobile, specifically, the present invention relates to a kind of gear train assemblies to tap in fact
Test the middle device for inhibiting speed ripple.
Background technique
In automobile power assembly R&D process, performance is most important by NVH (noise, vibration and sound vibration roughness), because making an uproar
The driving experience that driver is given in sound and vibration is most direct.There are related statistics to show, most of motor corporation grinds
Hair expense has 1/5th consumption on the NVH for solving the problems, such as vehicle.
During entire auto NVH performance development, the NVH performance of gear train assembly plays critical role.In order to
Guarantee the NVH performance of vehicle and reduce market failure rate, research and development unit all can in each development phase, to pinion unit into
Row NVH test.Pre-Evaluation and the NVH performance for gradually improving product, until product meets technical requirements.
In existing gear train assembly beat noise test method, the output axle shaft and output end measurement of power of gear train assembly
Machine is directly rigid link, does not meet the actual condition of vehicle, and test result does not tally with the actual situation more, causes test result quasi-
True property is low.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention provides a kind of tooth
Take turns the device for inhibiting speed ripple in transmission system tap test, it is therefore an objective to realize the gear train assembly in automobile power assembly
Inhibit torque and speed ripple in beat noise test process.
To achieve the goals above, the technical scheme adopted by the invention is as follows: in gear train assembly tap test inhibit turn
The dynamic device of rapid pulse, including for providing measured object load torque dynamometer machine, the transmission shaft that is connect with the dynamometer machine with
And the damped flywheel for the transfer of torque between the output end and transmission shaft of measured object, damped flywheel and transmission axis connection.
The material of the transmission shaft is carbon fiber.
Inhibiting the device of speed ripple in the gear train assembly tap test further includes being set in semianechoic room
Portion and the bearing block for being used to support transmission shaft offer.
Inhibit the device of speed ripple in gear train assembly tap test of the present invention, structure is simple, easily fabricated, safety
Reliably, setting inhibits the damped flywheel of the fluctuation of speed, and realization inhibits torque in gear train assembly beat noise test process
And speed ripple, it is ensured that the accuracy of gear train assembly beat noise test result.
Detailed description of the invention
This specification includes the following drawings, and shown content is respectively:
Fig. 1 is the structural schematic diagram for inhibiting the device of speed ripple in gear train assembly tap test of the present invention；
Fig. 2 is the structural schematic diagram of bearing block；
Fig. 3 is the main view of bearing block；
Fig. 4 is the side view of bearing block；
Fig. 5 is the top view of bearing block；
Fig. 6 is the top view of automobile power assembly gear train assembly beat noise test equipment；
Fig. 7 is the structural schematic diagram of damped flywheel；
In the figure, it is marked as 1, outer sound-proof wall；2, interior sound-proof wall；3, bearing block；301, bottom plate；302, locating piece, 303, branch
Column；304, the first reinforcing rib；305, the second reinforcing rib；306, panel is installed；307, the first avoid holes；308, axis hole；4, gear
Transmission system；5, motor is inputted；6, blimp；7, dynamometer machine；8, transmission shaft；9, noise elimination splitter；10, floor；11, damping flies
Wheel；12, output shaft；13, torque sensor.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to a specific embodiment of the invention further details of
Explanation, it is therefore an objective to those skilled in the art be helped to have more complete, accurate and deep reason to design of the invention, technical solution
Solution, and facilitate its implementation.
It should be noted that in embodiment disclosed below, " first " and " second " not representative structure and/or
Absolute differentiation relationship functionally, does not represent the successive sequence that executes yet, and merely for convenience of description.
As shown in Figure 1, the present invention provides the device for inhibiting speed ripple in a kind of gear train assembly tap test, packet
Include the dynamometer machine 7 for providing measured object load torque, the transmission shaft connecting with dynamometer machine 7 and in the defeated of measured object
The damped flywheel of transfer of torque between outlet and transmission shaft, damped flywheel and transmission axis connection.
As shown in fig. 6, automobile power assembly gear train assembly beat noise test equipment includes for accommodating measured object
Semianechoic room, the blimp 6 that is set to inside semianechoic room and be set to 6 inside of blimp and for providing drive to measured object
The input motor 5 of power, dynamometer machine 7 are located at the outside of semianechoic room, and measured object is gear train assembly.Gear in the application
Transmission system refers on practical automobile, for the power from engine to be transferred to the component of wheel, as manual transmission,
Double clutch gearboxes or automatic gear-box etc..
As shown in fig. 6, the main function of semianechoic room is to provide a Half free sound field sky for transmission system noise testing
Between (Half free sound field space refer to sound wave infinite space propagate when, in addition to floor, be not present any reflector), measured object
It is placed on the inside of semianechoic room.The power intake of measured object is connect with input motor 5, receives the drive from input motor 5
Power, dynamometer machine 7 are connect with the power output end of measured object, drive measured object to be operated by input motor 5 when test.
As shown in fig. 6, the inside of semianechoic room is arranged in blimp 6, blimp 6 covers input motor 5, and sound-absorbing cover is used for
The noise and absorb the sound wave in semianechoic room that isolation input motor 5 generates, the noise that input motor 5 generates passes through blimp 6
Sound absorption processing has been carried out, ensure that semianechoic room acoustic mass, has reduced the ambient noise in semianechoic room, has improved test knot
The accuracy of fruit.Motor 5 is inputted to be permanent magnet synchronous motor and be high dynamic low inertia permanent magnet synchronous motor, it can be with simulated engine
The torque ripple generated due to piston cycle inertia force is realized and is surveyed in semianechoic room to the beat noise of gear train assembly
Examination shortens the research and development time of entire automobile power assembly or even vehicle so as to no setting is required engine.
As shown in figures 1 to 6, the power output end of damped flywheel and measured object connects and for absorbing vibration, and damping is winged
Wheel is connect by transmission shaft with dynamometer machine 7, and damped flywheel is located at the inside of semianechoic room.Transmission shaft is horizontally disposed, transmission shaft
One end connect with damped flywheel, the other end of transmission shaft is connect by torque sensor with dynamometer machine 7, and transmission shaft is across partly disappearing
The axis of the wall of sound chamber, transmission shaft is parallel with the input axis of motor 5.The material of transmission shaft is carbon fiber, and intensity is high, weight
Amount is light, and noise is small when rotation.
As shown in fig. 6, dynamometer machine 7 is arranged two, each dynamometer machine 7 is connected by a transmission shaft and damped flywheel respectively
It connects, the power output end of measured object passes through a damped flywheel and a transmission axis connection respectively, and semianechoic room is located at two surveys
Between function machine 7.The output axis connection of damped flywheel and measured object, damped flywheel is for absorbing vibration and in the output of measured object
Transfer of torque between end and dynamometer machine 7, damped flywheel is double mass flywheel, and structure is as well known in the skilled person
Like that, details are not described herein.
For gear train assembly when percussion problem occurs, the input terminal torque and revolving speed of gear train assembly are pulsation,
And vehicle wheel rotational speed is actually stable.Because being elasticity from engine, clutch, gear train assembly, output shaft to wheel
Damping system.Therefore between the output shaft and dynamometer machine of gear train assembly, inhibit pinion unit using damped flywheel
The output end torque of system and the fluctuation of speed simulate real vehicle operating condition, so that test result is more tallied with the actual situation, to ensure gear drive
The accuracy of system beat noise test result.
When carrying out gear train assembly gear tap test, motor simulation engine torque pulse is inputted, inputs motor
Rotor be connected with the input terminal of measured object by spline flange, input terminal torque ripple keeps the gear pinion of measured object positive and negative
It hits back and forth in face.The output end of measured object is connected by output shaft with damped flywheel.Damped flywheel is preferably double matter with damping
Flywheel is measured, between output shaft and transmission shaft, plays the effect for inhibiting the peaceful speed of trackslipping of torque ripple.Damped flywheel makes to pass
The torque and revolving speed of moving axis are similar with real vehicle situation, so that test result is also more true and reliable.
As shown in figures 1 to 6, the device of inhibition speed ripple further includes in gear train assembly tap test of the invention
It is set to inside semianechoic room and for providing the bearing block of support to transmission shaft, it is ensured that transmission shaft is stable, further mentions
The accuracy of high test result.As shown in Figures 2 to 5, which includes support base and is set on support base and height position
Adjustable installation panel 306 is set, support base is set on floor.Support base includes bottom plate 301, be set on bottom plate 301 two
A pillar 303, the first reinforcing rib 304 being connect with pillar 303 and bottom plate 301 and connect with two pillars 303 second plus
Strengthening tendons 305.
As shown in Figures 2 to 5, bottom plate 301 is horizontally disposed, and bottom plate 301 is rectangular plate, bottom plate 301 and semianechoic room
Floor be fixedly connected, pillar 303 is vertically arranged, and two pillars 303 extend towards the top of bottom plate 301, under pillar 303
End is fixedly connected with bottom plate 301, and pillar 303 and bottom plate 301 are perpendicular.Pillar 303 has certain length, and pillar 303 is horizontal
Section (cross section refers to the plane perpendicular with the length direction of pillar 303) is the rod-like structure of rectangle, installs panel 306
It is set on two pillars 303 and panel 306 is installed and be vertically arranged, a side of each pillar 303 and installation panel 306
Same side fitting, increase installation panel 306 and pillar 303 effective contact area and pretightning force.Bearing is mounted on
Fill on panel 306, installation panel 306 has an axis hole 308 for allowing transmission shaft to pass through, axis hole 308 be circular hole and the axis hole 308 for
Through-hole on panel 306 along plate thickness direction through setting is installed.
As shown in Figures 2 to 5, the first reinforcing rib 304 be arranged two and two the first reinforcing ribs 304 respectively with a pillar
303 connections.First reinforcing rib 304 is to be obliquely installed, and two the first stiffening plates are parallel, the first reinforcing rib 304 and pillar 303 and
Bottom plate 301 is to be welded to connect.First reinforcing rib 304 has certain length, and the upper end of the first reinforcing rib 304 is in pillar 303
Length direction on both ends between position at be fixedly connected with pillar 303, the lower end of the first reinforcing rib 304 and bottom plate 301
It is fixedly connected, the side-lower of the first reinforcing rib 304 towards pillar 303 extends, the length direction and pillar of the first reinforcing rib 304
There is angle between 303 length direction and the angle is acute angle.Second reinforcing rib 305 is located between two pillars 303 and the
Two reinforcing ribs 305 and pillar 303 are perpendicular, and the second reinforcing rib 305 is to be welded to connect with pillar 303, the second reinforcing rib 305 and position
In bottom plate 301 top and the second reinforcing rib 305 it is parallel with bottom plate 301, the second reinforcing rib 305 is the length in pillar 303
It is fixedly connected at the position between both ends on direction with pillar 303.Between two pillars 303 of support base, pillar 303 and bottom plate
It is reinforced by reinforcing rib between 301, improves the integral rigidity and stability of bearing block.
As shown in Figures 2 to 5, installation panel 306 is connect by the first bolt with pillar 303, and installation panel 306, which has, to be allowed
The first avoid holes 307 that first bolt passes through, pillar 303 have the internal thread hole for allowing the first bolt to be inserted into, the first avoid holes 307
Length direction for waist-shaped hole and the first avoid holes 307 is parallel with the length direction of pillar 303.First avoid holes 307 be
Through-hole on panel 306 along plate thickness direction through setting is installed, axis hole 308 is located at the upper end of installation panel 306, the first avoid holes
307 are located at the lower section of axis hole 308, all first avoid holes 307 be arranged according to two column and respectively arrange with equivalent amount the
One avoid holes 307, positioned at same row all first avoid holes 307 be along installation panel 306 length direction be sequentially arranged and
To be equally spaced.The length of first avoid holes 307 is greater than the diameter of the first bolt, the width and the first spiral shell of the first avoid holes 307
The diameter of bolt is equal.Installation panel 306 is connect by multiple first bolts with pillar 303, and first on panel 306 is installed
Avoid holes 307 are arranged in multiple and each first avoid holes 307 is inserted into first bolt respectively, and installation panel 306 passes through same
Equal number of first bolts are mounted on two pillars 303.The internal thread hole of equivalent amount, pillar are set on two pillars 303
All internal thread holes on 303 are to be sequentially arranged and along the length direction of pillar 303 to be equally spaced, and allow the on pillar 303
The quantity for the internal thread hole that one bolt is screwed into is more than the quantity of the first avoid holes 307.After the first bolt is unscrewed, panel is installed
306 can slide up and down in the vertical direction, can install panel 306 to being highly finely adjusted and coarse adjustment, realize axis
Hold the adjusting of an overall height dimension.After installation panel 306 is adjusted to proper height, the first bolt is tightened, panel will be installed
306 are fixed on two pillars 303.The mode being fixed by bolts, easy disassembly.
As shown in Figures 2 to 5, support base further includes two locating pieces for playing the role of positioning to installation panel 306
302, two locating pieces 302 are respectively arranged on a pillar 303, and installation panel 306 is located between two locating pieces 302.It is fixed
Position block 302 is connect by the second bolt with pillar 303, and locating piece 302 is with the second avoid holes for allowing the second bolt to pass through, and second
Avoid holes are circular hole, and pillar 303 has the internal thread hole for allowing the second bolt to be inserted into.Locating piece 302 has certain length and determines
The length direction of position block 302 is parallel with the length direction of pillar 303, and locating piece 302 and installation panel 306 are located at pillar 303
The same side, two locating pieces 302 be located at installation panel 306 side, installation panel 306 can be in two locating pieces
It is slided up and down between 302, to have adjusted the height of bearing block.
The present invention is exemplarily described in conjunction with attached drawing above.Obviously, present invention specific implementation is not by above-mentioned side
The limitation of formula.As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out；Or not
It is improved, above-mentioned conception and technical scheme of the invention are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (3)
1. inhibiting the device of speed ripple in gear train assembly tap test, including for providing load torque to measured object
Dynamometer machine, which is characterized in that further include the transmission shaft being connect with the dynamometer machine and for the output end and biography in measured object
The damped flywheel of transfer of torque between moving axis, damped flywheel and transmission axis connection, measured object is gear train assembly.
2. inhibiting the device of speed ripple in gear train assembly tap test according to claim 1, which is characterized in that
The material of the transmission shaft is carbon fiber.
3. inhibiting the device of speed ripple in gear train assembly tap test according to claim 1 or 2, feature exists
In further including being set to inside semianechoic room and for providing the bearing block of support to the transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910068887.0A CN109655261A (en) | 2019-01-24 | 2019-01-24 | Inhibit the device of speed ripple in gear train assembly tap test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910068887.0A CN109655261A (en) | 2019-01-24 | 2019-01-24 | Inhibit the device of speed ripple in gear train assembly tap test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109655261A true CN109655261A (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910068887.0A Pending CN109655261A (en) | 2019-01-24 | 2019-01-24 | Inhibit the device of speed ripple in gear train assembly tap test |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110001506A (en) * | 2009-06-30 | 2011-01-06 | 현대자동차주식회사 | Rattle sensitivity measuring instrument for manual transmission |
| CN104807632A (en) * | 2015-03-16 | 2015-07-29 | 江苏万马传动科技有限公司 | Automobile power and transmission system performance test stand |
| CN106441548A (en) * | 2016-09-13 | 2017-02-22 | 同济大学 | Transmission gear knocking testing and noise quality analyzing method |
| CN106679970A (en) * | 2016-12-13 | 2017-05-17 | 华南理工大学 | Method and device for dual clutch transmission rattle simulation experiment |
| CN209182023U (en) * | 2019-01-24 | 2019-07-30 | 吉孚动力技术(中国)有限公司 | Inhibit the device of speed ripple in gear train assembly tap test |
-
2019
- 2019-01-24 CN CN201910068887.0A patent/CN109655261A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110001506A (en) * | 2009-06-30 | 2011-01-06 | 현대자동차주식회사 | Rattle sensitivity measuring instrument for manual transmission |
| CN104807632A (en) * | 2015-03-16 | 2015-07-29 | 江苏万马传动科技有限公司 | Automobile power and transmission system performance test stand |
| CN106441548A (en) * | 2016-09-13 | 2017-02-22 | 同济大学 | Transmission gear knocking testing and noise quality analyzing method |
| CN106679970A (en) * | 2016-12-13 | 2017-05-17 | 华南理工大学 | Method and device for dual clutch transmission rattle simulation experiment |
| CN209182023U (en) * | 2019-01-24 | 2019-07-30 | 吉孚动力技术(中国)有限公司 | Inhibit the device of speed ripple in gear train assembly tap test |
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