CN110389029A - A kind of the vibration life detection method and detection device of automobile electric bridge - Google Patents
A kind of the vibration life detection method and detection device of automobile electric bridge Download PDFInfo
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- CN110389029A CN110389029A CN201910695415.8A CN201910695415A CN110389029A CN 110389029 A CN110389029 A CN 110389029A CN 201910695415 A CN201910695415 A CN 201910695415A CN 110389029 A CN110389029 A CN 110389029A
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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
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of vibration life detection method of automobile electric bridge and detection devices, this method is applied in the detection device including shake table, the first hydraulic motor and the second hydraulic motor, the tested electric bridge is fixed on the shake table, and the output shaft of the tested electric bridge two sides is connect with first hydraulic motor and the second hydraulic motor respectively, this method comprises: adjusting the revolving speed of the tested electric bridge to desired speed；Determine target torque load corresponding with the desired speed；Apply the target torque to the tested electric bridge by first hydraulic motor and second hydraulic motor to load；Start the shake table, so that the tested electric bridge is in default vibration operating condition；Testing result of the tested electric bridge under target torque load is obtained based on the default vibration operating condition, by applying torque loads to tested electric bridge using hydraulic motor, to significantly reduce testing cost while meeting testing requirements.
Description
Technical field
The present invention relates to field of vehicle part detection, in particular to a kind of vibration life detection method of automobile electric bridge and
Detection device.
Background technique
Electric bridge is the emerging noun of automotive field, it is not traditional bridge circuit, but refers in particular to new energy
Electric drive assembly on automobile is integrated with the multiple cores such as driving motor, electric machine controller, gear-box, differential mechanism and drives zero
Part.Electric bridge is the heart on new-energy automobile, its quality and service life is manufacturer and the problem of user most pays close attention to
In the prior art, it in order to detect the vibration life of the electric bridge under actual condition, is simulated in laboratory with sweat box
Actual ambient temperature simulates actual loading torque with generator, however, the prior art with Research on Shaking Table for Simulating actual vibration operating condition
In this measuring technology can not effectively apply in practice, first is that the volume because of generator is too big, need bigger table top and more
The shake table of high thrust, the shake table cost is excessively high, be unfavorable for experiment quantity raising；Second is that because electric generator structure is complicated,
Vibration life and test product are suitable, and cannot be resistant to high/low temperature variation for a long time, are very easy to damage, are unable to reach verifying and produce
The requirement in product service life.Due to above-mentioned two, many times, electric bridge vibration test, which has yielded, applies wanting for torque loads
It asks, only drives electric bridge no-load running, actual operating condition can not be simulated, difficulty is caused to the prediction of the vibration life of subsequent electric bridge,
Influence development quality.
Summary of the invention
The present invention provides a kind of vibration life detection method of automobile electric bridge, carries out automobile electricity in the prior art to solve
When bridge vibration life detects, torque loads bringing device volume is big, technology easy to damage, at high cost, being unable to satisfy testing requirements
Problem, this method are applied in the detection device including shake table, the first hydraulic motor and the second hydraulic motor, wherein described
Tested electric bridge is fixed on the shake table, and the output shaft of the tested electric bridge two sides respectively with first hydraulic motor and
The connection of second hydraulic motor, which comprises
The revolving speed of the tested electric bridge is adjusted to desired speed；
Determine target torque load corresponding with the desired speed；
The target torque is applied to the tested electric bridge by first hydraulic motor and second hydraulic motor
Load；
Start the shake table, so that the tested electric bridge is in default vibration operating condition；
Testing result of the tested electric bridge under target torque load is obtained based on the default vibration operating condition.
Preferably, the shake table is located in test box, before the revolving speed to desired speed for adjusting the tested electric bridge,
The method also includes:
The temperature of the test box is adjusted to preset temperature, so that the tested electric bridge is in the preset temperature.
Preferably, the tested electric bridge is adjusted to desired speed, specifically:
Determine electric energy input value corresponding with the desired speed；
The revolving speed of the tested electric bridge is adjusted to the desired speed according to the electric energy input value.
Preferably, hydraulic oil is squeezed by first hydraulic motor and second liquid by hydraulic hose using oil feed pump
It is negative to apply the target torque to the tested electric bridge by first hydraulic motor and second hydraulic motor for pressure motor
It carries, specifically:
By the outlet pressure of the first hydraulic motor described in first throttle valve regulation, so that first hydraulic motor generates
First torque loads；
The outlet pressure of second hydraulic motor is adjusted by second throttle, so that second hydraulic motor generates
Second torque loads；
The target torque is applied to the tested electric bridge based on first torque loads and second torque loads
Load.
Preferably, hydraulic oil is being squeezed by first hydraulic motor and described second by hydraulic hose using oil feed pump
After hydraulic motor, further includes:
Corresponding with first hydraulic motor the first input pressure is adjusted by oil path distributor and with described second
Corresponding second input pressure of hydraulic motor, so that first input pressure is equal with second input pressure.
Correspondingly, the invention also provides a kind of vibration life detection devices of automobile electric bridge, including test box and vibration
Platform, the shake table are located in the test box, and tested electric bridge is fixed on the shake table, which is characterized in that
The output shaft of the tested electric bridge two sides is separately connected the first hydraulic motor and the second hydraulic motor, first liquid
Pressure motor and second hydraulic motor are fixed on the shake table by fixture, the outlet conduit connection oil circuit point of oil feed pump
The entrance side of orchestration, the outlet side of the oil path distributor connects the first oil inlet hose and the second oil inlet hose arrival end, described
The outlet end of first oil inlet hose connects the import of first hydraulic motor, and the outlet end of second oil inlet hose connects institute
State the import of the second hydraulic motor, the outlet of first hydraulic motor accesses fuel tank by the first oil return line, and described first
First throttle valve is provided on oil return line, the outlet of second hydraulic motor accesses the oil by the second oil return line
Case is provided with second throttle on second oil return line.
Preferably, the entrance of the oil feed pump accesses the fuel tank, and the outlet of the oil feed pump is provided with overflow valve.
Preferably, the fuel tank is also connected with cooling device, and the cooling device further includes circulating pump and plate heat exchanger.
Be compared with the prior art, the present invention have it is following the utility model has the advantages that
The invention discloses a kind of vibration life detection method of automobile electric bridge and detection device, this method be applied to include
In the detection device of shake table, the first hydraulic motor and the second hydraulic motor, the tested electric bridge is fixed on the shake table,
And the output shaft of the tested electric bridge two sides is connect with first hydraulic motor and the second hydraulic motor respectively, this method packet
It includes: the revolving speed of the adjusting tested electric bridge to desired speed；Determine target torque load corresponding with the desired speed；Pass through
First hydraulic motor and second hydraulic motor apply the target torque to the tested electric bridge and load；Described in starting
Shake table, so that the tested electric bridge is in default vibration operating condition；The tested electric bridge is obtained based on the default vibration operating condition
Testing result under target torque load, by applying torque loads, hydraulic horse to tested electric bridge using hydraulic motor
What is reached is small in size, light-weight, and shake table is made to invest a sharp decline, while the vibrated shadow with temperature of operation of hydraulic motor
Very little is rung, has success of the test rate and improves significantly, to significantly reduce testing cost while meeting testing requirements.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of the vibration life detection method for automobile electric bridge that the embodiment of the present invention proposes；
Fig. 2 is a kind of vibration life structure of the detecting device schematic diagram for automobile electric bridge that the embodiment of the present invention proposes；
Wherein, in Fig. 2: 1, fuel tank；2, oil feed pump；3, overflow valve；4, oil path distributor；5, the second oil inlet hose；6,
One oil inlet hose；7, the first hydraulic motor；8, it is tested electric bridge；9, test box；10, the second hydraulic motor；11, fixture；12, it vibrates
Platform；13, first throttle valve；14, second throttle；15, plate heat exchanger；16, circulating pump；17, the first oil return line；18,
Two oil return lines；19, cooling device.
Specific embodiment
As stated in the background art, torque loads bringing device volume is big in the prior art, easy to damage, at high cost, Wu Faman
Sufficient testing requirements.
To solve the above problems, the embodiment of the present application proposes a kind of vibration life detection method of automobile electric bridge, pass through
Using hydraulic motor to tested electric bridge apply torque loads, thus significantly reduced while meeting testing requirements detection at
This.
A kind of process signal of the vibration life detection method of the automobile electric bridge proposed as shown in Figure 1 for the embodiment of the present invention
Figure, this method are applied in the detection device including shake table, the first hydraulic motor and the second hydraulic motor, wherein the quilt
Electric bridge is surveyed to be fixed on the shake table, and the output shaft of the tested electric bridge two sides respectively with first hydraulic motor and the
The connection of two hydraulic motors, comprising the following steps:
S101 adjusts the revolving speed of the tested electric bridge to desired speed.
Specifically, need to keep tested electric bridge in operating status due to being to detect the vibration life of tested electric bridge,
The revolving speed of tested electric bridge is adjusted to desired speed.
It should be noted that those skilled in the art can the different desired speed of flexible setting according to actual needs, it is different
Desired speed have no effect on the protection scope of the application.
To simulate the tested actual working environment of electric bridge, in a preferred embodiment of the present application, the shake table, which is located at, to be surveyed
It tries in case, before the revolving speed to desired speed for adjusting the tested electric bridge, the method also includes:
The temperature of the test box is adjusted to preset temperature, so that the tested electric bridge is in the preset temperature.
Specifically, be located in test box due to being fixed on tested electric bridge shake table, it can be by adjusting the temperature in test box
To preset temperature, to simulate the tested actual working environment of electric bridge.
It should be noted that those skilled in the art can the different preset temperature of flexible setting according to actual needs, it is different
Preset temperature have no effect on the protection scope of the application.
For the revolving speed for accurately controlling tested electric bridge, in a preferred embodiment of the present application, the tested electric bridge is adjusted to pre-
Determine revolving speed, specifically:
Determine electric energy input value corresponding with the desired speed；
The revolving speed of the tested electric bridge is adjusted to the desired speed according to the electric energy input value.
Specifically, different revolving speeds corresponds to different electric energy input values since electric bridge is by being driven by electricity, according to
The revolving speed of tested electric bridge is accurately adjusted to desired speed by the corresponding electric energy input value of desired speed.
It should be noted that the scheme of preferred embodiment above is only a kind of specific implementation that the application is proposed,
Other modes for adjusting revolving speed to the desired speed of the tested electric bridge belong to the protection scope of the application.
S102 determines target torque load corresponding with the desired speed.
Specifically, determine target torque load corresponding with desired speed, it is negative to apply the target torque to tested electric bridge
It carries, those skilled in the art can flexibly set different target torque loads.
S103 applies the target to the tested electric bridge by first hydraulic motor and second hydraulic motor
Torque loads.
Specifically, the output shaft based on the tested electric bridge two sides respectively with first hydraulic motor and the second hydraulic horse
Up to connection, target torque load can be applied to tested electric bridge by adjusting two hydraulic motors.
Pass through liquid using oil feed pump in a preferred embodiment of the present application accurately to apply targeted loads to tested electric bridge
It presses hose that hydraulic oil is squeezed into first hydraulic motor and second hydraulic motor, passes through first hydraulic motor and institute
It states the second hydraulic motor and the target torque load is applied to the tested electric bridge, specifically:
By the outlet pressure of the first hydraulic motor described in first throttle valve regulation, so that first hydraulic motor generates
First torque loads；
The outlet pressure of second hydraulic motor is adjusted by second throttle, so that second hydraulic motor generates
Second torque loads；
The target torque is applied to the tested electric bridge based on first torque loads and second torque loads
Load.
Specifically, hydraulic oil is squeezed into first hydraulic motor and second liquid by hydraulic hose using oil feed pump
Pressure motor, to provide power for two hydraulic motors, while hydraulic hose can prevent the vibrational energy of shake table to be transferred to liquid
Pressure system ensure that the reliability of hydraulic system.Throttle valve is installed on the corresponding export pipeline of every hydraulic motor, is passed through
The outlet pressure that the throttle valve changes hydraulic motor is adjusted, so as to apply target torque load to tested electric bridge.
It should be noted that the scheme of preferred embodiment above is only a kind of specific implementation that the application is proposed,
Other apply the target torque to the tested electric bridge by first hydraulic motor and second hydraulic motor and load
Mode belong to the protection scope of the application.
To guarantee the identical input pressure of two hydraulic motors, in a preferred embodiment of the present application, oil feed pump is being utilized
Hydraulic oil is squeezed into after first hydraulic motor and second hydraulic motor by hydraulic hose, further includes:
Corresponding with first hydraulic motor the first input pressure is adjusted by oil path distributor and with described second
Corresponding second input pressure of hydraulic motor, so that first input pressure is equal with second input pressure.
Specifically, in the concrete application scene of the application, as shown in Fig. 2, the outlet conduit connection oil circuit point of oil feed pump 2
The outlet side of the entrance side of orchestration 4, oil path distributor 4 connects the first oil inlet hose 6 and 5 arrival end of the second oil inlet hose, oil circuit
Oil circuit is divided into two by distributor 4, keeps the oil pressure of the first oil inlet hose 6 and the second oil inlet hose 5 equal.
It should be noted that the scheme of preferred embodiment above is only a kind of specific implementation that the application is proposed,
Other guarantee that the mode of the identical input pressure of two hydraulic motors belongs to the protection scope of the application.
S104 starts the shake table, so that the tested electric bridge is in default vibration operating condition.
Specifically, to simulate actual vibration environment, being shaken by starting to make tested electric bridge be in preset vibration operating condition
Dynamic platform detects tested electric bridge in vibration.
S105 obtains detection knot of the tested electric bridge under target torque load based on the default vibration operating condition
Fruit.
It loads and is in default vibration operating condition specifically, tested electric bridge has been applied target torque, at this moment can record quilt
The related operation data for surveying electric bridge, the testing result for being tested the vibration life of electric bridge by analyzing the data acquisition.
It is including the detection dress of shake table, the first hydraulic motor and the second hydraulic motor by applying above technical scheme
In setting, the tested electric bridge is fixed on the shake table, and the output shaft of the tested electric bridge two sides is respectively with described first
Hydraulic motor and the connection of the second hydraulic motor adjust the revolving speed of the tested electric bridge to desired speed；It is determining to make a reservation for turn with described
The corresponding target torque load of speed；The tested electric bridge is applied by first hydraulic motor and second hydraulic motor
The target torque load；Start the shake table, so that the tested electric bridge is in default vibration operating condition；Based on described default
Vibration operating condition obtains testing result of the tested electric bridge under target torque load, by utilizing hydraulic motor to tested
Electric bridge apply torque loads, hydraulic motor it is small in size, light-weight, so that shake table is invested a sharp decline, while hydraulic horse
The vibrated influence very little with temperature of the operation reached, has success of the test rate and improves significantly, thus meeting testing requirements
Testing cost is significantly reduced simultaneously.
For the technical idea that the present invention is further explained, now in conjunction with specific application scenarios, to technical side of the invention
Case is illustrated.
The embodiment of the invention provides a kind of vibration life detection devices of automobile electric bridge, using method as described above
The vibration life of automobile electric bridge is detected, described device utilizes hydraulic motor energy density high — that is, can be with lesser volume
It is negative to overcome torque in the prior art with the torque loads of hydraulic motor simulation electric bridge for the technical characterstic for transmitting biggish power
The problem of load bringing device volume is big, easy to damage, at high cost, is unable to satisfy testing requirements, not only meets testing requirements, and
The significantly low overall cost for reducing vibration life detection.
It is illustrated in figure 2 a kind of vibration life structure of the detecting device principle of automobile electric bridge of proposition of the embodiment of the present invention
Figure, including test box 9 and shake table 12, shake table 12 are located in test box 9, and tested electric bridge 8 is fixed on shake table 12, pass through
It adjusts the temperature analog in test box 9 and is tested the actual working environment of electric bridge 8, the output shaft of tested 8 two sides of electric bridge connects respectively
The first hydraulic motor 7 and the second hydraulic motor 10 are connect, to provide torque loads to tested electric bridge 8 and simulate the reality of tested electric bridge 8
Border load, the first hydraulic motor 7 and the second hydraulic motor 10 are fixed on shake table 12 by fixture 11, and oil feed pump 2 is for giving
First hydraulic motor 7 and the second hydraulic motor 10 provide power, the entrance of the outlet conduit connection oil path distributor 4 of oil feed pump 2
The outlet side of side, oil path distributor 4 connects the first oil inlet hose 6 and 5 arrival end of the second oil inlet hose, oil path distributor 4 will be oily
Road is divided into two, and keeps the oil pressure of the first oil inlet hose 6 and the second oil inlet hose 5 equal, and the first oil inlet hose 6 and the second oil inlet are soft
Pipe 5 can also prevent the vibrational energy of shake table to be transmitted to hydraulic system, and the outlet end of the first oil inlet hose 6 connects the first hydraulic motor
7 import, the outlet end of the second oil inlet hose 5 connect the import of the second hydraulic motor 10, and the outlet of the first hydraulic motor 7 passes through
First oil return line 17 accesses fuel tank 1, first throttle valve 13 is provided on the first oil return line 17, first throttle valve 13 is for adjusting
The outlet pressure for saving the first hydraulic motor 7, makes corresponding torque loads meet testing requirements, and the outlet of the second hydraulic motor 10 is logical
The second oil return line 18 access fuel tank 1 is crossed, is provided with second throttle 14 on the second oil return line 18, second throttle 14 is used for
The outlet pressure for adjusting the second hydraulic motor 10, makes corresponding torque loads meet testing requirements, and the entrance of oil feed pump 2 accesses oil
Case 1, the outlet of oil feed pump 2 are provided with overflow valve 3, and the outlet pressure of oil feed pump 2 can be prevented excessively high.Fuel tank 1 is used to store, return
It receives, cooling hydraulic oil, as shown in dotted line frame in Fig. 2, fuel tank 1 is also connected with cooling device 19, and cooling device 19 further includes circulating pump
16 and plate heat exchanger 15, it is by circulating pump 16 that the hydraulic oil in fuel tank 1 is cooling after the circulation of plate heat exchanger 15, it is board-like to change
Hot device 15 can be by the heat transfer in hydraulic oil to extraneous cooling water.
Working principle: when being detected, tested electric bridge 8 being fixed on shake table 12, by the defeated of tested 8 two sides of electric bridge
Shaft is connect with the first hydraulic motor 7 and the second hydraulic motor 10 respectively, is adjusted the temperature in test box 9 to preset temperature, is made
Tested electric bridge 8 is in preset temperature, and adjusting tested 8 electric energy input value of electric bridge makes its revolving speed reach desired speed, utilizes fuel feeding
Hydraulic oil is squeezed into the first hydraulic motor 7 and the second hydraulic motor 8 by the first oil inlet hose 6 and the second oil inlet hose 5 by pump 2,
It is equal with the input pressure of the second hydraulic motor 10 by the first hydraulic motor 7 of adjusting of oil path distributor 4, pass through first throttle valve
13 outlet pressures for adjusting the first hydraulic motor 7 generate the first torque loads, adjust the second hydraulic horse by second throttle 14
Outlet pressure up to 10 generates the second torque loads, starts shake table 12, so that tested electric bridge 8 is in default vibration operating condition, base
Testing result of the tested electric bridge 8 under target torque load is obtained in default vibration operating condition.
It is small in size, light-weight because of hydraulic motor by applying above technical scheme, make under shake table investment significantly
Drop；Because the operation of hydraulic motor is vibrated and the influence very little of temperature, success of the test rate has to be improved significantly, and the service life is long；Device
Simply, easy to operate, compbined test is at low cost, so that entering market for new-energy automobile provides strong technical support,
Scientific basis is provided to detect the reliability of electric bridge, provides science data to improve its vibration life.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can lead to
Hardware realization is crossed, the mode of necessary general hardware platform can also be added to realize by software.Based on this understanding, this hair
Bright technical solution can be embodied in the form of software products, which can store in a non-volatile memories
In medium (can be CD-ROM, USB flash disk, mobile hard disk etc.), including making a computer equipment (can be in the form of some instructions
It is personal computer, server or the network equipment etc.) execute method described in each implement scene of the present invention.
It will be appreciated by those skilled in the art that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, module in attached drawing or
Process is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in device can describe to be distributed in implement scene according to implement scene
Device in, can also carry out corresponding change be located at different from this implement scene one or more devices in.Above-mentioned implementation field
The module of scape can be merged into a module, can also be further split into multiple submodule.
Aforementioned present invention serial number is for illustration only, does not represent the superiority and inferiority of implement scene.
Disclosed above is only several specific implementation scenes of the invention, and still, the present invention is not limited to this, Ren Heben
What the technical staff in field can think variation should all fall into protection scope of the present invention.
Claims (8)
1. a kind of vibration life detection method of automobile electric bridge, which is characterized in that be applied to include shake table, the first hydraulic motor
And second hydraulic motor detection device in, wherein the tested electric bridge is fixed on the shake table, and the tested electric bridge
The output shaft of two sides is connect with first hydraulic motor and the second hydraulic motor respectively, which comprises
The revolving speed of the tested electric bridge is adjusted to desired speed；
Determine target torque load corresponding with the desired speed；
Apply the target torque to the tested electric bridge by first hydraulic motor and second hydraulic motor to load；
Start the shake table, so that the tested electric bridge is in default vibration operating condition；
Testing result of the tested electric bridge under target torque load is obtained based on the default vibration operating condition.
2. the method as described in claim 1, which is characterized in that the shake table is located in test box, described tested adjusting
Before the revolving speed to desired speed of electric bridge, the method also includes:
The temperature of the test box is adjusted to preset temperature, so that the tested electric bridge is in the preset temperature.
3. the method as described in claim 1, which is characterized in that the adjusting tested electric bridge to desired speed, specifically:
Determine electric energy input value corresponding with the desired speed；
The revolving speed of the tested electric bridge is adjusted to the desired speed according to the electric energy input value.
4. the method as described in claim 1, which is characterized in that by hydraulic hose squeezed into hydraulic oil using oil feed pump described
First hydraulic motor and second hydraulic motor, by first hydraulic motor and second hydraulic motor to the quilt
It surveys electric bridge and applies the target torque load, specifically:
By the outlet pressure of the first hydraulic motor described in first throttle valve regulation, so that first hydraulic motor generates first
Torque loads；
The outlet pressure of second hydraulic motor is adjusted by second throttle, so that second hydraulic motor generates second
Torque loads；
Apply the target torque to the tested electric bridge based on first torque loads and second torque loads to load.
5. method as claimed in claim 4, which is characterized in that hydraulic oil is being squeezed into institute by hydraulic hose using oil feed pump
After stating the first hydraulic motor and second hydraulic motor, further includes:
By oil path distributor adjust corresponding with first hydraulic motor the first input pressure and with it is described second hydraulic
Corresponding second input pressure of motor, so that first input pressure is equal with second input pressure.
6. a kind of vibration life detection device of automobile electric bridge, including test box and shake table, the shake table is located at the survey
It tries in case, tested electric bridge is fixed on the shake table, which is characterized in that
The output shaft of the tested electric bridge two sides is separately connected the first hydraulic motor and the second hydraulic motor, the first hydraulic horse
It is fixed on the shake table up to second hydraulic motor by fixture, the outlet conduit of oil feed pump connects oil path distributor
Entrance side, the outlet side of the oil path distributor connects the first oil inlet hose and the second oil inlet hose arrival end, described first
The outlet end of oil inlet hose connects the import of first hydraulic motor, the outlet end connection of second oil inlet hose described the
The outlet of the import of two hydraulic motors, first hydraulic motor accesses fuel tank, first oil return by the first oil return line
First throttle valve is provided on pipeline, the outlet of second hydraulic motor accesses the fuel tank, institute by the second oil return line
It states and is provided with second throttle on the second oil return line.
7. detection device as claimed in claim 6, which is characterized in that the entrance of the oil feed pump accesses the fuel tank, described
The outlet of oil feed pump is provided with overflow valve.
8. detection device as claimed in claim 6, which is characterized in that the fuel tank is also connected with cooling device, the cooling dress
Set further includes circulating pump and plate heat exchanger.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910695415.8A CN110389029A (en) | 2019-07-30 | 2019-07-30 | A kind of the vibration life detection method and detection device of automobile electric bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910695415.8A CN110389029A (en) | 2019-07-30 | 2019-07-30 | A kind of the vibration life detection method and detection device of automobile electric bridge |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030150258A1 (en) * | 2002-02-13 | 2003-08-14 | Moskwa John J. | Internal combustion engine simulation and testing |
| CN103323256A (en) * | 2013-05-28 | 2013-09-25 | 万向钱潮股份有限公司 | Dynamic brake performance testing device of integrated type electronic parking brake system |
| CN104006972A (en) * | 2014-05-07 | 2014-08-27 | 江苏大学 | Electric vehicle regenerative brake test loading mechanism and method |
| CN106840661A (en) * | 2017-03-10 | 2017-06-13 | 方盛车桥（柳州）有限公司 | drive axle differential gear fatigue life test method |
| CN106989861A (en) * | 2017-06-02 | 2017-07-28 | 北京航空航天大学 | A kind of measurement apparatus based on hydraulic motor and torque sensor |
| CN109026645A (en) * | 2018-07-31 | 2018-12-18 | 天津航天瑞莱科技有限公司 | A kind of integrated environment test system pumping class product |
| CN109596978A (en) * | 2018-10-30 | 2019-04-09 | 新疆舰目摩托车有限公司 | A kind of new energy motor simulation p-wire |
| CN208937324U (en) * | 2018-10-22 | 2019-06-04 | 宜宾丰川动力科技有限公司 | A kind of speed changer fatigue life test device |
-
2019
- 2019-07-30 CN CN201910695415.8A patent/CN110389029A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030150258A1 (en) * | 2002-02-13 | 2003-08-14 | Moskwa John J. | Internal combustion engine simulation and testing |
| CN103323256A (en) * | 2013-05-28 | 2013-09-25 | 万向钱潮股份有限公司 | Dynamic brake performance testing device of integrated type electronic parking brake system |
| CN104006972A (en) * | 2014-05-07 | 2014-08-27 | 江苏大学 | Electric vehicle regenerative brake test loading mechanism and method |
| CN106840661A (en) * | 2017-03-10 | 2017-06-13 | 方盛车桥（柳州）有限公司 | drive axle differential gear fatigue life test method |
| CN106989861A (en) * | 2017-06-02 | 2017-07-28 | 北京航空航天大学 | A kind of measurement apparatus based on hydraulic motor and torque sensor |
| CN109026645A (en) * | 2018-07-31 | 2018-12-18 | 天津航天瑞莱科技有限公司 | A kind of integrated environment test system pumping class product |
| CN208937324U (en) * | 2018-10-22 | 2019-06-04 | 宜宾丰川动力科技有限公司 | A kind of speed changer fatigue life test device |
| CN109596978A (en) * | 2018-10-30 | 2019-04-09 | 新疆舰目摩托车有限公司 | A kind of new energy motor simulation p-wire |
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