CN108663209A - gear fatigue test lubricating oil pressure control system - Google Patents
gear fatigue test lubricating oil pressure control system Download PDFInfo
- Publication number
- CN108663209A CN108663209A CN201810795842.9A CN201810795842A CN108663209A CN 108663209 A CN108663209 A CN 108663209A CN 201810795842 A CN201810795842 A CN 201810795842A CN 108663209 A CN108663209 A CN 108663209A
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- CN
- China
- Prior art keywords
- gear
- oil
- outlet pipe
- tested
- oil outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- G01M13/021—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
Abstract
The present invention provides a kind of gear fatigue test Lubricating Oil pressure control system, including tested gear mounting shaft, load gear, oil-way, grease-box, hydraulic pump, oil outlet pipe, pressure sensor, oil return line；The oil inlet of the hydraulic pump is connected to the grease-box, the oil outlet of the hydraulic pump is connected to the oil outlet pipe, the oil outlet pipe is equipped with electric-hydraulic proportion overflowing and speed valve, the outlet of the oil outlet pipe to the load gear and the tested gear for providing lubricating oil, oil-way is set to the lower section of the load gear and the tested gear, and the oil-way is connected to the grease-box by oil return line；The pressure sensor is set to the oil outlet of oil outlet pipe；The pressure sensor detects the pressure in the oil outlet pipe, detected pressure is compared with preset value, if detected pressure value is more than preset value, the electric-hydraulic proportion overflowing and speed valve controls goes out oil pressure within a preset range in the oil outlet pipe.
Description
Technical field
The invention belongs to the technical fields such as the fatigue test of gear, and in particular to a kind of gear fatigue test lubricating oil oil pressure
Control system.
Background technology
In design of gears, especially for relatively high gear is required in terms of reliability, according to reliability theory pair
The result for the assessment that safety coefficient carries out can not almost reflect the reliability level of gear.It is thus typically necessary to gear
Fatigue test is carried out, it is especially true to examine the reliability and durability of gear.
The existing fatigue tester that fatigue test is carried out to gear carries out fatigue test by the way of following to gear：
Gear to be tested is fixed in a clamp shaft first；Secondly, selected in the reference plane of gear to be tested one close to tooth
The control point of tip；Then, it is carried out in one tooth top of above-mentioned control point ballast using a pressure head tooling with appropriate hardness
Fatigue test.
During carrying out fatigue test to tested gear, in order to allow tested gear more to meet real working condition, it usually needs
Tested gear is lubricated, when being loaded to tested gear especially with the mode that load gear is engaged with tested gear, is more needed
Load gear and tested gear are lubricated.
But in lubrication, the pressure of lubricating oil can influence the contact fatigue property of gear, therefore, how reduce lubricating oil
Pressure to be tested gear contact fatigue property influence, become those skilled in the art's technical barrier urgently to be resolved hurrily.
Invention content
The present invention is directed at least solve the technical problems existing in the prior art, it is proposed that a kind of gear fatigue test lubrication
Oily oil pressure control system can improve the above-mentioned problems of the prior art.
A kind of gear fatigue test Lubricating Oil pressure control system is provided to achieve the purpose of the present invention, and the gear is tired
Labor test Lubricating Oil pressure control system include tested gear mounting shaft, load gear, oil-way, grease-box, hydraulic pump,
Oil outlet pipe, pressure sensor, oil return line；
The tested gear mounting shaft is for installing tested gear；The driving mechanism is connect with load gear, for driving
The dynamic loaded teeth wheel rotation；And the load gear with the tested gear for engaging；
The oil inlet of the hydraulic pump is connected to the grease-box, and the oil outlet of the hydraulic pump is connected to the flowline
Road, the oil outlet pipe are equipped with electric-hydraulic proportion overflowing and speed valve, and the outlet of the oil outlet pipe is for the load gear
Lubricating oil is provided with the tested gear, oil-way is set to the lower section of the load gear and the tested gear, the profit
Oil groove is connected to the grease-box by oil return line；The pressure sensor is set to the oil outlet of oil outlet pipe；
The pressure sensor detects the pressure in the oil outlet pipe, and detected pressure is compared with preset value
Compared with if detected pressure value is more than preset value, the electric-hydraulic proportion overflowing and speed valve controls in the oil outlet pipe
Go out oil pressure within a preset range.
Preferably, the oil inlet pipe of the hydraulic pump is equipped with oil absorption filter.
Preferably, the hydraulic pump is electrical machinery hydraulic pump.
Preferably, the oil return line is equipped with return filter.
Preferably, the load gear includes base portion and wheel teeth portion, is detachably connected between wheel teeth portion and the base portion；
The quantity of the wheel teeth portion is multiple, and the tooth profiles in multiple wheel teeth portion are different.
Preferably, the load gear is identical as the tooth profiles of tested gear.
Preferably, the gear fatigue test Lubricating Oil pressure control system includes torque sensor, the torque sensing
Device and the tested gear are coaxially connected, for detecting the torque being applied on the tested gear tooth.
The invention has the advantages that：
Gear fatigue test Lubricating Oil pressure control system provided by the invention overflows in oil outlet pipe equipped with electric-hydraulic proportion
Speed governing valve is flowed, the outlet of the oil outlet pipe to the load gear and the tested gear for providing lubricating oil；Fuel-displaced
The oil outlet of pipeline is equipped with pressure sensor；The pressure sensor detects the pressure in the oil outlet pipe, will be detected
To pressure be compared with preset value, if detected pressure value be more than preset value, the electric-hydraulic proportion overflowing and speed
Valve controls goes out oil pressure within a preset range in the oil outlet pipe, so as to control the profit being lubricated to being tested gear
The pressure of lubricating oil thereby reduces the pressure of lubricating oil to being tested the shadow of the contact fatigue property of gear in default range
It rings.
Description of the drawings
Fig. 1 is the structural schematic diagram for the gear fatigue test Lubricating Oil pressure control system that embodiment of the present invention provides；
Fig. 2 is the structural schematic diagram of the gear fatigue test Lubricating Oil pressure control system with gear-box.
Reference sign：
10- is tested gear mounting shaft 20- torque sensors 30- load gears 40- and is tested gear 50- gear-boxes 60-
Displacement adjusts indexing screw 70- and loads the arm of force.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
A kind of gear fatigue test Lubricating Oil pressure control system provided by the invention, including tested gear mounting shaft 10,
Load gear 30, oil-way, grease-box, hydraulic pump, oil outlet pipe, pressure sensor, oil return line；The tested gear
Installation axle 10 is for installing tested gear；The driving mechanism is connect with load gear 30, for driving the loaded teeth to rotate
It is dynamic；And the load gear 30 with the tested gear for engaging.
The oil inlet of the hydraulic pump is connected to the grease-box, and the oil outlet of the hydraulic pump is connected to the flowline
Road, the oil outlet pipe are equipped with electric-hydraulic proportion overflowing and speed valve, and the outlet of the oil outlet pipe is for the load gear
Lubricating oil is provided with the tested gear, oil-way is set to the lower section of the load gear and the tested gear, the profit
Oil groove is connected to the grease-box by oil return line；The pressure sensor is set to the oil outlet of oil outlet pipe.
The pressure sensor detects the pressure in the oil outlet pipe, and detected pressure is compared with preset value
Compared with if detected pressure value is more than preset value, the electric-hydraulic proportion overflowing and speed valve controls in the oil outlet pipe
Go out oil pressure within a preset range.
Gear fatigue test Lubricating Oil pressure control system provided by the invention overflows in oil outlet pipe equipped with electric-hydraulic proportion
Speed governing valve is flowed, the outlet of the oil outlet pipe to the load gear and the tested gear for providing lubricating oil；Fuel-displaced
The oil outlet of pipeline is equipped with pressure sensor；The pressure sensor detects the pressure in the oil outlet pipe, will be detected
To pressure be compared with preset value, if detected pressure value be more than preset value, the electric-hydraulic proportion overflowing and speed
Valve controls goes out oil pressure within a preset range in the oil outlet pipe, so as to control the profit being lubricated to being tested gear
The pressure of lubricating oil thereby reduces the pressure of lubricating oil to being tested the shadow of the contact fatigue property of gear in default range
It rings.
In preferred scheme, the oil inlet pipe of the hydraulic pump is equipped with oil absorption filter, and oil absorption filter can filter
Impurity into the lubricating oil of hydraulic pump.
In preferred scheme, the hydraulic pump is electrical machinery hydraulic pump, and electrical machinery hydraulic pump is integrally set using motor with hydraulic pump
Meter, it is possible to reduce assembling is difficult when individually using motor and hydraulic pump, solves the problems, such as that occupied space is big.
In preferred scheme, the oil return line is equipped with return filter, into grease-box from oil-way
Impurity in lubricating oil will be filtered out by return filter.
Specifically, as shown in Fig. 2, the load gear 30 and tested gear mounting shaft 10 can be arranged in a babinet
In, which can be referred to as gear-box 50.
In above-mentioned basic embodiment, when carrying out fatigue test to tested gear 40, first, tested gear 40 is loaded
On tested gear mounting shaft 10, and in loading process, tested gear 40 is enable to be engaged with load gear 30；Thereafter, sharp
It is rotated with driving mechanism drive load gear 30, load gear 30 can drive the tested gear engaged in rotation process
40 rotate synchronously, and load the gear teeth striking of gear 30 on the gear teeth of tested gear 40, torque is input to tested gear 40, from
And the durability degree and reliability for being tested gear 40 can be tested, final assessment and the safety coefficient for determining tested gear 40
And actual life etc..
The gear fatigue test Lubricating Oil pressure control system that present embodiment provides, by being added by driving mechanism driving
Gear 30 is carried, and then by load gear 30 is acted on power and torque on the end face of the gear teeth of tested gear 40, to test quilt
Survey the durability degree and reliability of gear 40.With the existing technical solution phase using pressure head tooling top pressure on the gear teeth of tested gear
Than, it is simpler, it is also more laborsaving.
Specifically, the driving mechanism can be the automatic driving mechanisms such as motor, rotary cylinder；In addition it is also possible to for can
Rotating bar, the rotatable bar are connect with load gear 30, drive the rotatable bar to rotate by manpower manual, and then described in driving
Gear 30 is loaded to rotate.
Meanwhile when driving mechanism is motor, rotary cylinder etc., compared with prior art, being applied to the tested gear
Torque on 40 can reach 10000 Ns of rice or higher, and frequency can reach 100-250Hz or higher, so as in bigger
In the range of fatigue test is carried out to tested gear 40.
As shown in Fig. 2, being also provided with the load arm of force 70 between driving mechanism and load gear 30, pass through the loading force
Arm 70 transfers a torque on load gear 30, and then is transferred on tested gear 40.
On above-mentioned basic embodiment, it is preferable that the gear fatigue test Lubricating Oil pressure control system includes
Torque sensor 20, the torque sensor 20 and the tested gear 40 are coaxially connected, and described be tested is applied to for detecting
Torque on 40 gear teeth of gear.When load gear 30 drives and is tested the rotation of gear 40, the torque sensor 20 can obtain
The value that the gear teeth of load gear 30 are applied to the torque on tested gear 40 can be preferably according to the numerical value of the torque of acquisition
Determine the bending fatigue strength of the gear teeth of tested gear 40.
It on above-mentioned basic embodiment, can also be further improved, to realize superior technique effect.Below to this
The preferred embodiment for inventing the gear fatigue test Lubricating Oil pressure control system provided is described and illustrates.
In a preferred embodiment of gear fatigue test Lubricating Oil pressure control system, the load gear 30 wraps
Base portion 300 and wheel teeth portion 301 are included, is detachably connected between the wheel teeth portion 301 and base portion 300；On this basis, the gear teeth
The quantity in portion 301 is multiple, and the tooth profiles in multiple wheel teeth portion 301 are different.Specifically, the gear teeth of multiple wheel teeth portion 301
Shape difference refers to taking turns in each parameter for stating gear such as the number of teeth, modulus, tooth pitch, space width, flank profil of teeth portion 301 extremely
A few parameter difference.
Setting can replace different wheel teeth portion 301 in this way, and load gear 30 is enable to have different flank profils, so as to
Load gear 30 is enough set to apply required power and torsion to the suitable position on 40 gear teeth of tested gear with different flank profils
Square carries out fatigue test to tested gear.
In above-mentioned basic embodiment and first preferred embodiment, the load gear 30 and tested gear 40
Tooth profiles are identical.Specifically, it refers to loading gear 30, the number of teeth of tested gear 40, modulus, tooth pitch, tooth that tooth profiles are identical
Groove width, flank profil etc. are used for stating the parameters all same in each parameter of gear.Setting can ensure to load gear 30 in this way
There can be better engagement between tested gear 40, to obtain more accurately test result.
In gear fatigue test Lubricating Oil pressure control system basic embodiment and above-mentioned two preferred embodiment,
Assembly center between the load gear 30 and tested gear 40 is away from adjustable.Setting can change 30 center of load gear in this way
The distance between 40 center of tested gear, can be in favor of realization gear modification.
During carrying out fatigue test to tested gear, along the gear teeth meshing involute enveloping surface of tested gear 40
Different contact points loaded is chosen, by adjusting the assembly center between load gear 30 and tested gear 40 away from can be with
Simulation applies the load of tangential, radial direction, normal direction and axial (for helical gear and herringbone bear), simulates the practical dress of gear pair
Match, the test situation of technique, abrasion and edge load in transmission process.
In the third preferred embodiment of gear fatigue test Lubricating Oil pressure control system, the gear fatigue examination
It further includes adjusting detent mechanism to test Lubricating Oil pressure control system, and the adjusting detent mechanism is for adjusting the load gear 30
Angle of the gear teeth relative to 40 gear teeth of tested gear.
Specifically, as shown in Fig. 2, the detent mechanism that adjusts can be that the displacement being arranged on gear-box 50 adjusts indexing
Screw 60 adjusts indexing screw 60 by rotating to conjugate, changes angle of load 30 gear teeth of gear relative to 40 gear teeth of tested gear
Degree.
In the preferred embodiment, angle of load 30 gear teeth of gear relative to 40 gear teeth of tested gear is adjusted, it can be with
Make the engagement operating mode for having different between load gear 30 and tested gear 40, and obtain best one or more engagement operating modes,
So as to carry out fatigue test to tested gear 40 under different engagement operating modes, more accurately test result is obtained.
On the basis of third preferred embodiment, it is further preferred that the adjusting detent mechanism further includes record
Device, the logger are used to record the angle of load 30 gear teeth of gear.In this way setting can after obtaining test result,
By one or more result datas of acquisition with load gear 30 angle relation and be mapped, to obtain needed for experiment tie
The corresponding angle-data of fruit.
In conclusion gear fatigue test device provided by the invention, by by driving mechanism drive load gear 30,
And then on the end face for the gear teeth that power and torque are acted on to tested gear 40 by load gear 30, to which test is tested gear 40
Durability degree and reliability.It is simpler compared with the existing technical solution using pressure head tooling top pressure on the gear teeth of tested gear
It is single, it is also more laborsaving.
The structure, feature and effect of the present invention, the above institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention is not to limit practical range, every structure according to the present invention shown in drawing
Change made by thinking, or is revised as the equivalent embodiment of equivalent variations, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (7)
1. a kind of gear fatigue test Lubricating Oil pressure control system, which is characterized in that including tested gear mounting shaft, loaded teeth
Wheel, oil-way, grease-box, hydraulic pump, oil outlet pipe, pressure sensor, oil return line；
The tested gear mounting shaft is for installing tested gear；The driving mechanism is connect with load gear, for driving
State the rotation of loaded teeth wheel；And the load gear with the tested gear for engaging；
The oil inlet of the hydraulic pump is connected to the grease-box, and the oil outlet of the hydraulic pump is connected to the oil outlet pipe, institute
It states oil outlet pipe and is equipped with electric-hydraulic proportion overflowing and speed valve, the outlet of the oil outlet pipe is for the load gear and described
Tested gear provides lubricating oil, and oil-way is set to the lower section of the load gear and the tested gear, the oil-way
It is connected to the grease-box by oil return line；The pressure sensor is set to the oil outlet of oil outlet pipe；
The pressure sensor detects the pressure in the oil outlet pipe, and detected pressure is compared with preset value,
If detected pressure value is more than preset value, the electric-hydraulic proportion overflowing and speed valve controls fuel-displaced in the oil outlet pipe
Pressure is within a preset range.
2. gear fatigue test Lubricating Oil pressure control system according to claim 1, which is characterized in that the hydraulic pump
Oil inlet pipe be equipped with oil absorption filter.
3. gear fatigue test Lubricating Oil pressure control system according to claim 2, which is characterized in that the hydraulic pump
For electrical machinery hydraulic pump.
4. gear fatigue test Lubricating Oil pressure control system according to claim 1, which is characterized in that the oil return pipe
Road is equipped with return filter.
5. gear fatigue test Lubricating Oil pressure control system according to claim 1, which is characterized in that the loaded teeth
Wheel includes base portion and wheel teeth portion, is detachably connected between wheel teeth portion and the base portion；
The quantity of the wheel teeth portion is multiple, and the tooth profiles in multiple wheel teeth portion are different.
6. gear fatigue test Lubricating Oil pressure control system according to claim 1 or 5, which is characterized in that described to add
It is identical as the tooth profiles of tested gear to carry gear.
7. gear fatigue test Lubricating Oil pressure control system according to claim 1, which is characterized in that the gear is tired
It includes torque sensor that labor, which tests Lubricating Oil pressure control system, and the torque sensor and the tested gear are coaxially connected,
For detecting the torque being applied on the tested gear tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810795842.9A CN108663209A (en) | 2018-07-19 | 2018-07-19 | gear fatigue test lubricating oil pressure control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810795842.9A CN108663209A (en) | 2018-07-19 | 2018-07-19 | gear fatigue test lubricating oil pressure control system |
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| Publication Number | Publication Date |
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| CN108663209A true CN108663209A (en) | 2018-10-16 |
Family
ID=63788559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810795842.9A Pending CN108663209A (en) | 2018-07-19 | 2018-07-19 | gear fatigue test lubricating oil pressure control system |
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| CN105651511A (en) * | 2016-01-06 | 2016-06-08 | 北京工业大学 | Experimental apparatus for dynamic performances of cylindrical gear |
| CN106840655A (en) * | 2017-02-10 | 2017-06-13 | 中国航发沈阳发动机研究所 | A kind of spiral bevel gear tooth root fatigue experimental device |
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| CN207018456U (en) * | 2017-07-11 | 2018-02-16 | 苏州凯瑞汽车测试研发有限公司 | A kind of novel steering rack-and-pinion loading device |
| CN207111884U (en) * | 2017-07-02 | 2018-03-16 | 郑州大学 | A kind of gear of adjustable gear teeth angle |
| CN108168877A (en) * | 2017-12-14 | 2018-06-15 | 中国航发沈阳发动机研究所 | A kind of gear tooth bending fatigue testing device |
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2018
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| CN201891698U (en) * | 2010-11-02 | 2011-07-06 | 东华大学 | Open type loading adaptive oil supply system for hydrostatic guide way |
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| CN105651511A (en) * | 2016-01-06 | 2016-06-08 | 北京工业大学 | Experimental apparatus for dynamic performances of cylindrical gear |
| CN106840655A (en) * | 2017-02-10 | 2017-06-13 | 中国航发沈阳发动机研究所 | A kind of spiral bevel gear tooth root fatigue experimental device |
| CN107036814A (en) * | 2017-06-06 | 2017-08-11 | 青岛科技大学 | Close energy-saving type parallel axes column gear transmission testing stand |
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| CN207111884U (en) * | 2017-07-02 | 2018-03-16 | 郑州大学 | A kind of gear of adjustable gear teeth angle |
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Application publication date: 20181016 |
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