CN101666731B - Jiggle corrosion abrasion-micro amplitude collision abrasion test machine - Google Patents
Jiggle corrosion abrasion-micro amplitude collision abrasion test machine Download PDFInfo
- Publication number
- CN101666731B CN101666731B CN2008101370509A CN200810137050A CN101666731B CN 101666731 B CN101666731 B CN 101666731B CN 2008101370509 A CN2008101370509 A CN 2008101370509A CN 200810137050 A CN200810137050 A CN 200810137050A CN 101666731 B CN101666731 B CN 101666731B
- Authority
- CN
- China
- Prior art keywords
- abrasion
- jiggle
- hole
- test machine
- electric furnace
- 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.)
- Active
Links
Images
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a jiggle corrosion abrasion-micro amplitude collision abrasion test machine. The test machine consists of a main machine and a system, wherein the system comprises a measurement control system and a cooling system; the main machine comprises a device base, a driving motor, an eccentric wheel mechanism, a lever-type swinging-arm mechanism and an electric heating furnace; the lever-type swinging-arm mechanism drives a shaft pin of a rolling bearing serving as a rotating center, and is arranged on the device base through front and rear brackets with balls; a frequency-variable motor enables the lever-type swinging-arm mechanism to produce reciprocating swing by using the shaft pin as the center and using a pin roller bracket as a plane through an eccentric wheel which is arranged at the shaft end and provided with the rolling bearing; each part is lubricated by lubricating grease; and a hole at the bottom of the electric heating furnace enables the lower part of a swinging-arm test section to be supported on the pin roller bracket. The test machine is used for representing the jiggle corrosion abrasion and micro amplitude collision abrasion work properties of crowned turbine blades, blades with various intermediate damping tables and blade vibration damping device and the like in the power mechanical devices in aviation, ship, industrial gas turbine and steam turbine and the like, and can be applied to the similar machinery.
Description
(1) technical field
What the present invention relates to is a kind of testing machine, specifically a kind of abrasion tester that is mainly used in fretting corrosionwears such as turbo blade and slight impact wear experimental study.
(2) background technology
Adopt the shrouded turbines blades in a large number in the motive power machine devices such as modern gas turbines (aviation, boats and ships, industry) and steam turbine (industry, peculiar to vessel), with the blade (fan blade of turbofan, aft-fan blade, boats and ships gas turbine backing turbine blade etc.) and the various forms of blade vibration damping unit of various centre damping platforms, to change the vibration characteristics of blade, improve its functional reliability, or improve its aeroperformance.
Because the blade profile of blade is reversed, changed along the leaf exhibition, under the effect in centrifugal force, aerodynamic force and temperature field, elastic torsion can take place in blade when work.When integral shroud, damping platform its damping area under installment state or duty of blade is in the state of contact extruding and since blade vibration then damping area just be in the fretting wear state.When integral shroud, damping platform in working order down, then just be in the gouging abrasion state between its integral shroud, damping platform workplace when still gapped.No matter be fretting wear or gouging abrasion, under the long-term work condition, can make all that " tightness " diminishes between workplace, it is big that the gap becomes, thereby influence the functional reliability of blade.For this reason, need a kind of fretting corrosionwear-slight impact wear test machine of above-mentioned operating characteristic that can reflect to study.
(3) summary of the invention
The object of the present invention is to provide a kind of sign aviation, boats and ships, industry gas turbine, the fretting corrosionwear of " the shrouded turbines blade " in the motive power machine devices such as steam turbine, " with the blade of damping platform in the middle of various " and " blade vibration damping unit " etc., the testing machine of slight impact wear operating characteristic.And can be applicable to the fretting corrosionwear-slight impact wear test machine of similar machinery.
The object of the present invention is achieved like this: testing machine is made up of two parts of main frame and system:
The composition of main frame comprises device pedestal, drives variable-frequency motor, eccentric mechanism, lever oscillating arm mechanisms, electric furnace, testpieces anchor clamps, charger, rigidity controllable elastic collision device, portal frame.
System comprises TT﹠C system and cooling system.The composition of TT﹠C system comprises that motor frequency conversion control (hunting frequency adjusting), loading system observing and controlling, furnace temp observing and controlling, Motor torque are measured, microsystem (comprising data acquisition, demonstration and system's control).Cooling system adopts air cooling, water-cooled.
Drive the eccentric wheel shifting lever formula oscillating arm mechanisms that variable-frequency motor is installed by axle head, make the test section that is in the heating furnace reciprocating under the vertical force effect that charger produces.Under extrusion stress, temperature, frequency and the displacement amplitude of regulation, test specimen does relatively reciprocating motion up and down, thereby has simulated the condition of work of blade fretting corrosionwear.
Do not load, and enable the testpieces anchor clamps of test section left and right sides and the testpieces anchor clamps of heating furnace both sides rigidity controllable elastic collision device, can simulate the condition of work of slight impact wear.
The present invention includes some architectural features like this:
The lever oscillating arm mechanisms with the band rolling bearing pivot pin as rotation center, and by former and later two the band balls carriage be installed on the device pedestal.Above-mentioned all have grease lubrication everywhere.
2. drive the eccentric wheel that the variable-frequency motor axle head is installed, be easy to change the eccentric wheel of different offsets, to realize the displacement of required test section;
3. be provided with the railway grease storage chamber in the shift fork of described lever oscillating arm mechanisms pivot pin, on shift fork and motor-driven eccentric wheel surface of contact, the railway grease overfolw hole arranged;
4. load maintainer can be counterweight loading, lever-counterweight loading, servomotor loading, hydraulic loaded etc.;
5. the spring force of rigidity controllable elastic collision device and rigidity can or be changed spring and realize with compression spring;
6. electric furnace is the releasable structure of a door assembly with hinge and glass in right hand and left and fast-assembling button.The porose logical load bar in electric furnace top, the porose logical test section in bottom, the both sides, front and back are porose to be used to insert rigidity controllable elastic collision device.All tappings all have flexible heat-insulating and sealing cover;
7. testpieces adopts the clamping structure that is easy to change the outfit;
8. there is heat eliminating medium (gas or water) to flow through nearby at lever oscillating arm mechanisms pivot pin centrepin place;
9. the spring section at rigidity controllable elastic collision device has the cooling air cooling;
10. at the part of high temperature section work, all make with high temperature alloy.
11. test figure gathers automatically, shows that test unit is controlled automatically.
Device of the present invention can be realized following function:
1. under normal temperature or high temperature, carry out the fine motion or the gouging abrasion test of different frequency;
2. under normal temperature or high temperature, carry out the fine motion or the gouging abrasion test of different loads;
3. under normal temperature or high temperature, carry out the gouging abrasion test of different-stiffness
4. under normal temperature or high temperature, carry out the fine motion or the gouging abrasion test of different cycles;
5. under normal temperature or high temperature, carry out the fretting wear test of different displacements;
6. under normal temperature or high temperature, carry out the gouging abrasion test of different gap;
7. under normal temperature or high temperature, carry out the fine motion or the gouging abrasion test of various materials;
Apparatus of the present invention mainly are applicable to:
1. gas turbine (aviation, boats and ships, industry) and steam turbine (industry, peculiar to vessel) shrouded turbines blade, the fan blade of turbofan, aft-fan blade, boats and ships gas turbine backing turbine blade, the fretting wear of various forms of blade vibration damping units and slight impact wear experimental study;
2. the renovation technique of fretting wear and gouging abrasion face research (material, coating process);
3. the fretting wear of similar machinery and slight impact wear test.
Advantage of the present invention is mainly reflected in:
1. on same testing table, can carry out fretting corrosionwear and gouging abrasion test, improve the utilization factor of testing table, save funds;
2. adopt the lever oscillating arm mechanisms, the precision when can the warranty test section requiring " a little " displacement.In addition, the acting force on the drive motor is reduced greatly, thereby friction force is reduced;
3. the change the outfit eccentric wheel of different offsets can be realized the required displacement of test section (from a little to the millimeter level) fast;
4. rigidity controllable spring crash device is realized the rigidity value of customer requirements in a kind of easy mode, the different particular requirement of device rigidity about also can satisfying.
5. with a kind of better simply structure, the groundwork feature when having simulated research object generation fretting corrosionwear and gouging abrasion, frequency, load, displacement, temperature, rigidity are all controlled, adjustable.
(4) description of drawings
Fig. 1 is an illustraton of model;
Fig. 2 is the A face stretch-out view of Fig. 1;
Fig. 3 is that testing machine is formed synoptic diagram;
Fig. 4 is fretting corrosionwear-slight impact wear test unit structural representation;
Fig. 5 is the partial enlarged drawing of Fig. 4;
Fig. 6 is the C-C sectional view of Fig. 5;
Fig. 7 is the B-B sectional view of Fig. 4;
Fig. 8 is the testpieces scheme of installation;
Fig. 9 is load maintainer one structural representation;
Figure 10 is the partial enlarged drawing of Fig. 9;
Figure 11 is load maintainer two structural representations.
(5) embodiment
For a more detailed description to the present invention for example below in conjunction with accompanying drawing:
In conjunction with Fig. 1, rely on collision amplitude limit and damping action to control the bladings such as turbine shrouded blade of the dynamic stress under the blade working state, its typical physical model such as Fig. 1.Each bump of Mi representative and the quality of being clashed into object, Ke and Ce be representative system rigidity and damping respectively, and δ is the two articles gap, and F (t) is for acting on the external force on the bump object.And the rigidity controllable elastic collision device of the testpieces of test section left and right sides and heating furnace both sides promptly is the imbody of this model in this test unit.
Rely on blade pretwist and the elastic torsion under condition of work, make to produce " tightness " between the integral shroud damping area and be unified into whole circle, with the bladings such as turbine shrouded blade of the dynamic stress under the control blade working state, its typical physical model such as Fig. 1 and Fig. 2.The M representative is by the moment of torsion that pretwist and elastic torsion produce at the integral shroud place being installed, the normal force of F for being produced on the integral shroud damping area by moment of torsion M.During blade vibration, promptly do fine motion having under the condition of extrusion stress between the integral shroud damping area.And the test specimen of doing to do relatively reciprocating motion under the vertical acting force of charger up and down that is in this test unit in the heating furnace promptly is the imbody of this model.
In conjunction with Fig. 3, testing machine is made up of main frame 1 and system's 2 two parts, and system comprises TT﹠C system (motor frequency conversion control, Control for Kiln Temperature, Motor torque measurement, Loading Control, microsystem) and cooling system;
In conjunction with Fig. 4-Fig. 7, the composition of main frame comprises device pedestal 3, drive motor 8, eccentric mechanism 9, lever oscillating arm mechanisms 6, electric furnace 4, variable-frequency motor is by the eccentric wheel of the band rolling bearing of axle head installation, making the lever oscillating arm mechanisms is the center with pivot pin 5, with roller carriage 7 is that the plane produces reciprocally swinging, and above-mentioned all have grease lubrication everywhere.
Electric furnace 4 is releasable structures of a door assembly with hinge and glass in right hand and left and fast-assembling button, to be convenient to change testpieces, the hole of electric furnace bottom make the bottom of swing arm test section can rest on roller carriage 11, also there is flexible sealing 12 in the hole with passing through between part, the roller carriage has heat eliminating medium to cool off.
In conjunction with Fig. 8, there is grease lubrication at swing arm centrepin 5 places, and it is preceding and have heat eliminating medium to flow into cooling through access port 13, and heating furnace is by locating piece 14 location that are installed on the base; Electric furnace 4 bottom sides have three profile holes, and the B hole is that the place is passed through in swing arm, and the A hole is rigidity controllable elastic collision device 15 insert divisions, and all there are flexible gland 10 sealings in hole and passing through between part; When carrying out fretting wear when test, A hole (two places) is with heat insulation obstruction shutoff; When carrying out a little impact test, the hole on heating furnace top (place) is with heat insulation obstruction shutoff.
In conjunction with Fig. 9-10, signal band lever-counterweight loads, and load maintainer is installed on the testing table by loading support 17, has heat eliminating medium to flow into cooling at the load bar place.The spring section of rigidity controllable elastic collision device has cooling air to flow into cooling from access port 18, spring force and rigidity can be borrowed the compresses in length spring that changes adjustment ring 20 or be changed spring 19 and realize, testpieces anchor clamps 16 are a kind of quick fixation structures, testpieces are inserted cooperate accurate Kong Zhongyong nut compressing locking.
In conjunction with Figure 11, the test unit that signal band servomotor loads, the servomotor load maintainer is installed on the testing table by loading support 21, has heat eliminating medium to flow into cooling at the load bar place.
Claims (5)
1. jiggle corrosion abrasion-micro amplitude collision abrasion test machine, it is characterized in that testing machine is made up of two parts of main frame and system, system comprises TT﹠C system and cooling system, the composition of main frame comprises device pedestal, drive motor, eccentric mechanism, lever oscillating arm mechanisms and electric furnace, the lever oscillating arm mechanisms with the band rolling bearing pivot pin as rotation center, and by former and later two the band balls carriage be installed on the device pedestal, variable-frequency motor is by the eccentric wheel of the band rolling bearing of axle head installation, making the lever oscillating arm mechanisms is the center with the pivot pin, with the roller carriage is that the plane produces reciprocally swinging, above-mentioned all have grease lubrication everywhere, and the hole of electric furnace bottom makes the bottom rest of swing arm test section on the roller carriage; Described electric furnace is by the locating piece location that is installed on the device pedestal; The electric furnace bottom sides has three profile holes, wherein first hole (A-1) passes through the place with second hole (A-2) for swing arm, the 3rd hole (B) is rigidity controllable elastic collision device insert division, and the flexible gland sealing is all arranged between these three holes and swing arm, the rigidity controllable elastic collision device; When carrying out fretting wear when test, first and second hole is with heat insulation obstruction shutoff; When carrying out a little impact test, the hole on electric furnace top is with heat insulation obstruction shutoff.
2. jiggle corrosion abrasion-micro amplitude collision abrasion test machine according to claim 1, it is characterized in that being provided with the railway grease storage chamber in the shift fork of described lever oscillating arm mechanisms pivot pin, on shift fork and motor-driven eccentric wheel surface of contact, the railway grease overfolw hole is arranged, there is grease lubrication at lever oscillating arm mechanisms pivot pin centrepin place, this centrepin anterior and have the heat eliminating medium access port to flow into the heat eliminating medium cooling.
3. jiggle corrosion abrasion-micro amplitude collision abrasion test machine according to claim 1 is characterized in that described rigidity controllable elastic collision device is provided with the spring section, and the spring section has cooling air to flow into cooling from access port.
4. jiggle corrosion abrasion-micro amplitude collision abrasion test machine according to claim 1 is characterized in that described TT﹠C system comprises motor frequency conversion control, Control for Kiln Temperature, Motor torque measurement, Loading Control and microsystem.
5. jiggle corrosion abrasion-micro amplitude collision abrasion test machine according to claim 1 is characterized in that the hole of described electric furnace bottom and passes through being provided with flexible sealing between part, and the roller carriage has the heat eliminating medium cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101370509A CN101666731B (en) | 2008-09-02 | 2008-09-02 | Jiggle corrosion abrasion-micro amplitude collision abrasion test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101370509A CN101666731B (en) | 2008-09-02 | 2008-09-02 | Jiggle corrosion abrasion-micro amplitude collision abrasion test machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101666731A CN101666731A (en) | 2010-03-10 |
| CN101666731B true CN101666731B (en) | 2011-09-28 |
Family
ID=41803445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101370509A Active CN101666731B (en) | 2008-09-02 | 2008-09-02 | Jiggle corrosion abrasion-micro amplitude collision abrasion test machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101666731B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044565A (en) * | 2019-05-17 | 2019-07-23 | 宁夏大学 | Simple branch Converting frequency & amplitude vibrating mechanism and its operating method |
| CN111735595B (en) * | 2020-08-04 | 2022-06-07 | 中北大学 | Roll and slide experiment table based on bidirectional excitation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5323655A (en) * | 1993-04-23 | 1994-06-28 | Troxler Electronic Laboratories, Inc. | Method and apparatus for compacting material samples |
| CN2735331Y (en) * | 2004-09-28 | 2005-10-19 | 张德坤 | Micromotion abrasion tester for steel wire |
| CN1687740A (en) * | 2005-04-22 | 2005-10-26 | 中国矿业大学 | Wear test method of twisting jiggle of generating micro iamplitude of vibration, and testing machine |
| CN2783313Y (en) * | 2005-04-22 | 2006-05-24 | 中国矿业大学 | Twisting micromotion wearing test machine |
| CN200982947Y (en) * | 2006-11-17 | 2007-11-28 | 中国矿业大学 | Multi-function small friction and wearing tester |
-
2008
- 2008-09-02 CN CN2008101370509A patent/CN101666731B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5323655A (en) * | 1993-04-23 | 1994-06-28 | Troxler Electronic Laboratories, Inc. | Method and apparatus for compacting material samples |
| CN2735331Y (en) * | 2004-09-28 | 2005-10-19 | 张德坤 | Micromotion abrasion tester for steel wire |
| CN1687740A (en) * | 2005-04-22 | 2005-10-26 | 中国矿业大学 | Wear test method of twisting jiggle of generating micro iamplitude of vibration, and testing machine |
| CN2783313Y (en) * | 2005-04-22 | 2006-05-24 | 中国矿业大学 | Twisting micromotion wearing test machine |
| CN200982947Y (en) * | 2006-11-17 | 2007-11-28 | 中国矿业大学 | Multi-function small friction and wearing tester |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2002-340764A 2002.11.27 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101666731A (en) | 2010-03-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101660989A (en) | Inching corrosion wear test machine | |
| CN201259484Y (en) | Jiggle corrosion abrasion test machine | |
| CN108519235A (en) | Air impeller drive-type birotor testing stand | |
| CN103196765A (en) | Multifunctional high-temperature high-speed friction and wear testing machine and method | |
| CN109682704B (en) | Low Wen Niudong fretting friction wear test device | |
| Waumans et al. | Aerodynamic journal bearing with a flexible, damped support operating at 7.2 million DN | |
| JP2012154336A (en) | Method for damping vibration of power train of wind turbine, wind turbine, and use of brake device | |
| CN112378671B (en) | Sliding pair friction wear test bed and method for stator blade adjusting mechanism of gas compressor | |
| Wollmann et al. | Investigating the friction, wear and damage behaviour of plain bearing bushes of the variable stator vane system | |
| CN101666731B (en) | Jiggle corrosion abrasion-micro amplitude collision abrasion test machine | |
| CN103308447A (en) | Contacting and rubbing device of nano-particle air film static-pressure thrust bearing | |
| Padova et al. | Controlled fan blade tip/shroud rubs at engine conditions | |
| CN110529201B (en) | Turbine blade rotating dynamic airflow exciting force measuring device | |
| CN201259485Y (en) | Small amplitude collision abrasion test machine | |
| CN115993245A (en) | Special tester for bearings between rotors of military turbofan engine | |
| CN101660990B (en) | Slight impact wear test machine | |
| Yousef et al. | Techniques for assessing the running temperature and fatigue strength of thermoplastic gears | |
| CN103293078A (en) | High-speed rotary skiving test machine and test method for testing skiving performance of sealing material | |
| Kucinschi et al. | An experimental study of transient thermal effects in a plain journal bearing | |
| Vanhaelst et al. | A systematic analysis of the friction losses on bearings of modern turbocharger | |
| CN106153342B (en) | Comprehensive performance test device for heavy-load high-speed radial sliding bearing for aero-engine | |
| Pettinato et al. | Test results of key and spherical pivot five-shoe tilt pad journal bearings—part I: performance measurements | |
| CN111337254A (en) | System and method for testing floating thrust bearing of axial flow turbine supercharger | |
| Guo et al. | Application of multi-leaf foil bearings in high-speed turbo-machinery | |
| EP3317629B1 (en) | Test bench for charging devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HARBIN GUANGHAN GAS TURBINE CO., LTD. Free format text: FORMER OWNER: CHINA SHIPBUILDING INDUSTRY CORPORATION THE 7TH 03 RESEARCH CENTER Effective date: 20120413 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 150036 HARBIN, HEILONGJIANG PROVINCE TO: 150078 HARBIN, HEILONGJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120413 Address after: 150078, No. 35, Honghu Road, Yingbin Road, Harbin, Heilongjiang, 6 Patentee after: HARBIN GUANGHAN GAS TURBINE CO., LTD. Address before: 150036 Hongqi Street, Xiangfang District, Heilongjiang, China, No. 108, No. Patentee before: No.703 Inst. China Ship Heavy Industry Group Co. |