CN108627337A - Gear torsional fatigue experimental device - Google Patents
Gear torsional fatigue experimental device Download PDFInfo
- Publication number
- CN108627337A CN108627337A CN201810796430.7A CN201810796430A CN108627337A CN 108627337 A CN108627337 A CN 108627337A CN 201810796430 A CN201810796430 A CN 201810796430A CN 108627337 A CN108627337 A CN 108627337A
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- China
- Prior art keywords
- gear
- servo
- action device
- load
- torsional
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of gear torsional fatigue experimental devices, the gear torsional fatigue experimental device includes load rack, servo action device, tested gear, connecting flange, bearing block, load the arm of force, torsional axis, the servo action device linearly operating is to provide axially loaded load, the upper end of the servo action device connects the top of the load rack, one end of the connecting flange connects the axial sides of the tested gear, the other end of the connecting flange connects the torsional axis, the torsional axis is supported in the bearing block, the circumferential direction for being placed on the torsional axis is fixed in one end of the load arm of force, the lower end of the servo action device connects the other end of the load arm of force, the bearing block is fixed on the bottom of the load rack.
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 torsional fatigue experimental device.
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 torsional fatigue characteristic of gear is a kind of performance of gear, and the torsional fatigue characteristic of gear is by more and more gears
Designer payes attention to, and there is presently no effective methods to carry out simulated experiment to the torsional fatigue special efficacy of gear.
Therefore, how simulated experiment is carried out to the torsional fatigue feature of gear, it is urgently to be resolved hurrily becomes those skilled in the art
Technical barrier.
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 torsional fatigue test
Device can improve the above-mentioned problems of the prior art.
A kind of gear torsional fatigue experimental device is provided to achieve the purpose of the present invention, including load rack, servo are moved
Make device, tested gear, connecting flange, bearing block, the load arm of force, torsional axis, the servo action device linearly operating is to provide axis
To loaded load, the upper end of the servo action device connects the top of the load rack, one end connection of the connecting flange
The other end of the axial sides of the tested gear, the connecting flange connects the torsional axis, and the torsional axis is supported in institute
Bearing block is stated, the circumferential direction for being placed on the torsional axis, the lower end connection of the servo action device are fixed in one end of the load arm of force
The other end of the load arm of force, the bearing block are fixed on the bottom of the load rack.
Preferably, the load rack includes portal frame and sole plate, and the gate-type rack is fixed on the basis
On pedestal, the upper end of the servo action device is fixed on the top of the portal frame, and the bearing block is fixed on the basis
On pedestal.
Preferably, the servo action device is single pole two-chamber work oil cylinder.
Preferably, the tail portion of the servo action device is embedded with displacement sensor, and institute's displacement sensors are for detecting institute
State the piston rod straight-line displacement of servo action device.
Preferably, further include electrohydraulic servo-controlling system, the electrohydraulic servo-controlling system includes hydraulic oil source, servo
Valve, controller, hydraulic oil source connect the oil inlet of the servo action device by servo valve, and the servo valve end connects the control
The signal issuing side of device processed.
Preferably, load cell is installed on the torsional axis.
Preferably, the controller receives the signal of load cell and institute's displacement sensors, judges servo action device
Power output whether be preset value, if it is not, servo valve events are then controlled, so that the power output of servo action device is default
Value.
Preferably, the torsional axis is made of 40Cr material heat treatment post-processings.
Preferably, the torsional axis is multi-diameter shaft.
The invention has the advantages that：
Gear torsional fatigue experimental device provided by the invention, based on electro-hydraulic servo technology, using servo action device
As dynamic experiment power, and it is accurate by the fixing tool of the tested gears such as connecting flange, bearing block, the load arm of force, torsional axis
Dynamic experiment power is transferred to tested gear by ground, loaded consistent to ensure to be tested load condition suffered by gear and practical institute, from
And it can accurately test the torsional fatigue characteristic of tested gear.
Description of the drawings
Fig. 1 is the structural schematic diagram for the gear torsional fatigue experimental device that embodiment of the present invention provides.
Reference sign：
Connecting flange 1, bearing block 2, the load arm of force 3, torsional axis 4.
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.
Referring to FIG. 1, Fig. 1 is the structural schematic diagram for the gear torsional fatigue experimental device that embodiment of the present invention provides.
As shown in Figure 1, gear torsional fatigue experimental device provided by the present invention, including load rack, servo action device,
Tested gear, connecting flange 1, bearing block 22, the load arm of force, torsional axis 4, the servo action device linearly operating is to provide axial direction
Loaded load, the upper end of the servo action device connect the top of the load rack, and one end of the connecting flange 1 connects institute
The axial sides of tested gear are stated, the other end of the connecting flange 1 connects the torsional axis 4, and the torsional axis 4 is supported in institute
Bearing block 22 is stated, the circumferential direction for being placed on the torsional axis 4 is fixed in one end of the load arm of force, and the lower end of the servo action device connects
The other end of the load arm of force is connect, the bearing block 22 is fixed on the bottom of the load rack.
Gear torsional fatigue experimental device provided by the invention, based on electro-hydraulic servo technology, using servo action device
As dynamic experiment power, and pass through the fixing tool of the tested gears such as connecting flange 1, bearing block 22, the load arm of force, torsional axis 4
Dynamic experiment power is accurately transferred to tested gear, to ensure to be tested load condition suffered by gear and practical institute loaded one
It causes, so as to accurately test the torsional fatigue characteristic of tested gear.
In preferred scheme, the load rack includes portal frame and sole plate, and the gate-type rack is fixed on institute
It states on sole plate, the upper end of the servo action device is fixed on the top of the portal frame, and the bearing block 22 is fixed on
On the sole plate.The structure that rack uses portal frame and sole plate is loaded, can be made produced by servo action device
Experiment power become system internal force, reduce experimental machine installation foundation requirement, and ensure that testing machine itself rigidity and
Stability.
In preferred scheme, the servo action device is single pole two-chamber work oil cylinder, can provide more accurately experiment power.
In preferred scheme, the both ends of servo action device are connected using receiving delivery system, can be reduced suffered by servo action device
The lateral force arrived improves the service life of servo action device.
In preferred scheme, the tail portion of the servo action device is embedded with displacement sensor, and institute's displacement sensors are used for
Detect the piston rod straight-line displacement of the servo action device.
Further include electrohydraulic servo-controlling system in preferred scheme, the electrohydraulic servo-controlling system include hydraulic oil source,
Servo valve, controller, hydraulic oil source connect the oil inlet of the servo action device by servo valve, and the servo valve end connects institute
State the signal issuing side of controller.
In further embodiment, load cell is installed on the torsional axis 4, load cell can detect torsional axis
Suffered experiment power on 4.
In more optimal solution, the controller receives the signal of load cell and institute's displacement sensors, judges servo
Whether the power output for acting device is preset value, if it is not, servo valve events are then controlled, so that the power output of servo action device
For preset value, so as to realize the closed-loop control of whole system.
In preferred scheme, the torsional axis 4 is made of 40Cr material heat treatment post-processings, the torsional axis 4 of this structure
With higher rigidity and fatigue properties.
In specific scheme, the torsional axis 4 is multi-diameter shaft, can preferably permanent twist axis 4 in the axial direction.
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 (9)
1. a kind of gear torsional fatigue experimental device, which is characterized in that including load rack, servo action device, tested gear, connect
Acting flange, bearing block, the load arm of force, torsional axis, the servo action device linearly operating are described to watch to provide axially loaded load
The upper end of clothes action device connects the top of the load rack, and one end of the connecting flange connects the axial direction of the tested gear
The other end of side, the connecting flange connects the torsional axis, and the torsional axis is supported in the bearing block, the loading force
The circumferential direction for being placed on the torsional axis is fixed in one end of arm, and the lower end of the servo action device connects the another of the load arm of force
End, the bearing block are fixed on the bottom of the load rack.
2. gear torsional fatigue experimental device according to claim 1, which is characterized in that the load rack includes gate-type
Frame and sole plate, the gate-type rack are fixed on the sole plate, and the upper end of the servo action device is fixed on institute
The top of portal frame is stated, the bearing block is fixed on the sole plate.
3. gear torsional fatigue experimental device according to claim 1, which is characterized in that the servo action device is single pole
Two-chamber work oil cylinder.
4. gear torsional fatigue experimental device according to claim 3, which is characterized in that the tail portion of the servo action device
It is embedded with displacement sensor, institute's displacement sensors are used to detect the piston rod straight-line displacement of the servo action device.
5. gear torsional fatigue experimental device according to claim 4, which is characterized in that further include electro-hydraulic servo control system
System, the electrohydraulic servo-controlling system include hydraulic oil source, servo valve, controller, described in hydraulic oil source is connected by servo valve
The oil inlet of servo action device, the servo valve end connect the signal issuing side of the controller.
6. gear torsional fatigue experimental device according to claim 5, which is characterized in that be equipped on the torsional axis negative
Set sensor.
7. gear torsional fatigue experimental device according to claim 6, which is characterized in that the controller receives load and passes
The signal of sensor and institute's displacement sensors judges whether the power output of servo action device is preset value, if it is not, then control is watched
Valve events are taken, so that the power output of servo action device is preset value.
8. gear torsional fatigue experimental device according to claim 1, which is characterized in that the torsional axis is by 40Cr materials
Heat treatment post-processing is made.
9. gear torsional fatigue experimental device according to claim 1, which is characterized in that the torsional axis is multi-diameter shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810796430.7A CN108627337A (en) | 2018-07-19 | 2018-07-19 | Gear torsional fatigue experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810796430.7A CN108627337A (en) | 2018-07-19 | 2018-07-19 | Gear torsional fatigue experimental device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108627337A true CN108627337A (en) | 2018-10-09 |
Family
ID=63689044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810796430.7A Pending CN108627337A (en) | 2018-07-19 | 2018-07-19 | Gear torsional fatigue experimental device |
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| CN (1) | CN108627337A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567711A (en) * | 2019-08-27 | 2019-12-13 | 格特拉克（江西）传动***有限公司 | gear pulse load type fatigue life test method and device |
| CN112229614A (en) * | 2020-10-16 | 2021-01-15 | 中国航发沈阳发动机研究所 | Shaft part torsion fatigue test device |
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|---|---|---|---|---|
| CN202149843U (en) * | 2011-07-27 | 2012-02-22 | 株洲时代新材料科技股份有限公司 | Rubber spherical hinge loading fatigue test device |
| CN202330029U (en) * | 2011-10-17 | 2012-07-11 | 上海科曼车辆部件***有限公司 | Multi-channel rigid axle suspension test bench |
| CN103616303A (en) * | 2013-12-02 | 2014-03-05 | 北京乐冶液压气动设备技术有限公司 | Tension-compression and torsion vibration fatigue test device |
| CN103674732A (en) * | 2012-09-03 | 2014-03-26 | 苏州星诺奇传动科技有限公司 | Torsion measuring device |
| CN205404094U (en) * | 2016-02-05 | 2016-07-27 | 上海北阅机械设备有限公司 | Novel fatigue test platform is twistd reverse to constant speed drive shaft |
| CN106092621A (en) * | 2016-08-17 | 2016-11-09 | 株洲九方装备股份有限公司 | Elasticity wheel twists reverse test fixture |
| CN205719535U (en) * | 2016-04-26 | 2016-11-23 | 郑州宇通客车股份有限公司 | A kind of vehicle final gear assembly fatigue experimental device |
| CN206862649U (en) * | 2017-05-23 | 2018-01-09 | 中国第一汽车股份有限公司 | Balanced suspension for heavy-duty vehicle axle rubber bushing Combined Loading endurancing mechanism |
| CN108169015A (en) * | 2017-12-01 | 2018-06-15 | 中国直升机设计研究所 | A kind of tail-rotor flexible beam torque load testing machine |
-
2018
- 2018-07-19 CN CN201810796430.7A patent/CN108627337A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202149843U (en) * | 2011-07-27 | 2012-02-22 | 株洲时代新材料科技股份有限公司 | Rubber spherical hinge loading fatigue test device |
| CN202330029U (en) * | 2011-10-17 | 2012-07-11 | 上海科曼车辆部件***有限公司 | Multi-channel rigid axle suspension test bench |
| CN103674732A (en) * | 2012-09-03 | 2014-03-26 | 苏州星诺奇传动科技有限公司 | Torsion measuring device |
| CN103616303A (en) * | 2013-12-02 | 2014-03-05 | 北京乐冶液压气动设备技术有限公司 | Tension-compression and torsion vibration fatigue test device |
| CN205404094U (en) * | 2016-02-05 | 2016-07-27 | 上海北阅机械设备有限公司 | Novel fatigue test platform is twistd reverse to constant speed drive shaft |
| CN205719535U (en) * | 2016-04-26 | 2016-11-23 | 郑州宇通客车股份有限公司 | A kind of vehicle final gear assembly fatigue experimental device |
| CN106092621A (en) * | 2016-08-17 | 2016-11-09 | 株洲九方装备股份有限公司 | Elasticity wheel twists reverse test fixture |
| CN206862649U (en) * | 2017-05-23 | 2018-01-09 | 中国第一汽车股份有限公司 | Balanced suspension for heavy-duty vehicle axle rubber bushing Combined Loading endurancing mechanism |
| CN108169015A (en) * | 2017-12-01 | 2018-06-15 | 中国直升机设计研究所 | A kind of tail-rotor flexible beam torque load testing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567711A (en) * | 2019-08-27 | 2019-12-13 | 格特拉克（江西）传动***有限公司 | gear pulse load type fatigue life test method and device |
| CN112229614A (en) * | 2020-10-16 | 2021-01-15 | 中国航发沈阳发动机研究所 | Shaft part torsion fatigue test device |
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Application publication date: 20181009 |