CN106769839B - Material fatigue rig - Google Patents
Material fatigue rig Download PDFInfo
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- CN106769839B CN106769839B CN201710157117.4A CN201710157117A CN106769839B CN 106769839 B CN106769839 B CN 106769839B CN 201710157117 A CN201710157117 A CN 201710157117A CN 106769839 B CN106769839 B CN 106769839B
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- main shaft
- fixes sleeve
- bushing
- seat
- bearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
Abstract
The present invention relates to a kind of material fatigue rigs, including cabinet, experimental rig and lubricating system, the tooling of experimental rig includes sample holder and connector, sample holder includes sample holder ontology, fixes sleeve and straight line positioning and guiding are snug fit at the sliding seat in fixes sleeve, sliding seat connects push rod, push rod is pierced by bottom cover and connect with the loading end of axially loaded mechanism, push rod and the bottom cover of fixes sleeve bottom, which seal, to be cooperated, tubbiness test chamber is set at the top of sliding seat, sample holder ontology is fixed on test chamber bottom, test chamber oral area is stamped gear oil cap, the axis hole that cooperation is passed through and sealed for main shaft is set in gear oil cap, test chamber top, which is equipped with, is equipped with oil outlet higher than the fuel feed hole of sample holder and bottom, the barrel chamber of oil outlet connection test chamber and fixes sleeve, fixes sleeve bottom is equipped with the oil return hole being connected to barrel chamber, fuel feed hole and oil return hole It is connect with lubricating system, at least two sets of experimental rigs is equipped in cabinet.With multistation, work efficiency is high, compact-sized advantage.
Description
Technical field
The present invention relates to material fatigue rigs.
Background technique
Material fatigue tester is for testing and verifying fatigue life of material under conditions of being in rolling contact ---
Material existsFatigue rupturePreceding number of stress cycles experienced is known as fatigue life.
The detection of material fatigue is each using sample of rolling element during being rolled on sample and to test
Parameter detecting realizes that sample needs to apply in the detection process axial load and provides lubrication.Present material is tired
Labor testing equipment is due to unreasonable structural design, and often only one detection part in an equipment, there are ineffective
Defect.
Summary of the invention
Objects of the present invention: to overcome defect of the existing technology, the present invention provides a kind of multistation, working efficiency
Height, compact-sized material fatigue rig.
To achieve the above object, the present invention provides the following technical scheme that
A kind of material fatigue rig, including cabinet, cabinet are equipped with experimental rig and lubricating system, test
Device includes mainshaft mechanism, axially loaded mechanism and tooling, and tooling includes the sample holder and connector of corresponding matching, institute
It states sample holder to connect with the loading end of axially loaded mechanism, the main shaft connection of connector and mainshaft mechanism, it is characterised in that: described
Sample holder include sample holder ontology, sliding seat and fixes sleeve, fixes sleeve is fixed on cabinet, sliding seat straight line positioning
Guiding is snug fit in fixes sleeve, and fixes sleeve bottom has bottom cover, and sliding seat bottom is connected with push rod, and push rod is pierced by bottom
It covering and is connect with the loading end of axially loaded mechanism, push rod and bottom cover sealing cooperate, the test chamber of tubbiness is equipped at the top of sliding seat,
Sample holder ontology is fixedly mounted on test chamber bottom, test chamber oral area is stamped gear oil cap, and gear oil cap is equipped with to be passed through for main shaft
Axis hole, main shaft and gland seal cooperate, and the test chamber top is equipped with the fuel feed hole higher than sample holder, and test chamber bottom is equipped with
Oilhole, the barrel chamber of the oil outlet connection test chamber and fixes sleeve, the bottom of the fixes sleeve is equipped with to be connected to barrel chamber
Oil return hole, fuel feed hole and oil return hole are connect with lubricating system, and at least two sets of experimental rigs are equipped in the cabinet.
By using above-mentioned technical proposal, rationally, the design of test chamber guarantees to provide to sample reliable for tool structure design
Lubrication, prevent lubricating oil splash during the test, fixes sleeve guarantees that sliding seat stablizes tooling, and cooperates to go out in sliding seat
Oilhole realizes that lubricating oil recycles transfer, and barrel chamber of the lubricating oil through fixes sleeve, oil return hole reenter in lubricating system, lubricating oil
Lubrication when sliding seat sliding is provided simultaneously；So that compact overall structure, is accessed in lubricating system convenient for experimental rig, side
Just at least two sets of experimental rig design, realizes Optimum Design, improves detection efficiency.
Preferably, the another port for connecting Single port on the oil outlet with test chamber bottom is located at the peripheral side of sliding seat
On wall, there is oil-recovery tank, barrel chamber of the oil outlet through oil-recovery tank and fixes sleeve between the barrel chamber side wall of sliding seat and fixes sleeve
Connection is equipped with the oil partition tank around push rod in sliding seat axial direction bottom face.Under structure design, guarantee that oil return is reliable, oil partition tank
Lubricating oil is blocked, avoids lubricating oil from reaching push rod along the wall of sliding seat, is oozed out along push rod.
Preferably, the mainshaft mechanism includes spindle drive motor and main shaft supporting component, and main shaft upper end and main shaft drive
Dynamic motor connection, main shaft supporting component include that base set and bushing, base set are fixed on cabinet, and bushing is with can be along axial cunning
Dynamic mode, which positions, to be assemblied in base set, and the main shaft passes through bushing, and the first angular contact axis is supported between bushing and main shaft
It holds and is loaded on main shaft with the second angular contact bearing, the inner ring fixing sleeve of the inner ring of the first angular contact bearing and the second angular contact bearing
On, the outer ring of the outer ring of the first angular contact bearing and the second angular contact bearing is tight in the lumen of bushing, the first angular contact axis
The lumen axial direction end positions for being set to bushing with the second angular contact bearing are held, are respectively equipped with and the first angular contact at bushing two-port
The outer ring of bearing axially contradicts the retaining ring of limit cooperation and axially contradicts limit cooperation with the outer ring of the second angular contact bearing
Preload ring, equipped with conical bearing in the lumen upper end of base set, conic bearing outer ring is fixed on base and puts on, cone axis
The inner ring held is fixed on main shaft.Under structure design, bushing, the first angular contact axis, the second angular contact bearing and conical bearing
The bearing for realizing main shaft, in test, after connector axial load protrudes into, bushing realizes axial movement under axial load forces,
And axial load balance is realized through conical bearing, it is stable and reliable in work to reach main shaft during the test；And above-mentioned main shaft dress
Set it is compact-sized, convenient for assembly or disassembly safeguard.
Preferably, the lower cover of the bushing lower end and base set, which contradicts, cooperates, the upper end of the bushing other end and base set
There is axial active interval between lid.The structure design under, base set lower cover contradict bushing, through the first angular contact bearing,
Power is transferred on conical bearing by the second angular contact bearing and main shaft, is realized to the axial pretightening of conical bearing, is improved main shaft
Run stability.
Preferably, it is equipped with bearing press mounting hole seat in the upper end cover of the base set, conical bearing is pressed in bearing press mounting hole
In seat, bearing press mounting hole seat inner end is the press fitting mouth being pressed into for conical bearing, and bearing press mounting hole seat outer end has and conical bearing
Outer ring axial direction defining flange.Under structure design, the compact assembling structure of conical bearing and conveniently.
Preferably, the preload ring is that excircle has externally threaded screwed ring, is equipped in bushing corresponding with screwed ring
The internal screw thread of cooperation.Under structure design, preload that is convenient for assembly and adjusting the first angular contact bearing, the second angular contact bearing
Power.
Preferably, the axially loaded mechanism includes loading motor, speed reducer and leadscrew-nut mechanism, loading motor
Output end connect speed reducer, leadscrew-nut mechanism include positioning cover for seat and screw rod, speed reducer be fixedly installed in positioning cover for seat
On, lead screw position rotating is matched in positioning cover for seat, the output axis connection of screw rod one end and speed reducer, has been threadedly engaged on screw rod
Nut is loaded, load nut straight line positioning is snug fit in positioning cover for seat, and the output end and push rod for loading nut are sequentially connected.
The structure design, axially loaded mechanism using feed screw nut pair realize, have it is simple and compact for structure, load controllably, loading accuracy
Advantage high and that load is reliable and stable.
Preferably, the output end of the load nut is connected with spring buffer load cylinder, and spring buffer load cylinder includes
Cylinder barrel and buffer shaft are buffered, buffering cylinder barrel one end is equipped with buffering cylinder end cap, and the buffering cylinder barrel other end is equipped with cushion dashpot bottom plate, delays
It rushes cylinder bottom plate and is equipped with perforation axis hole, the buffer shaft is plugged in an axially sliding manner in buffering cylinder barrel, buffer shaft one
End stretch out perforation axis hole and with perforation axis hole location fit, buffer shaft be equipped be located at buffering cylinder barrel in annular flange, annular
Flange and the limit of cushion dashpot bottom plate cooperate, and buffering disc spring group, the buffering are equipped between the annular flange and buffering cylinder end cap
Disc spring group by several disc springs stacking constitute, the buffer shaft with load nut connect, it is described buffer cylinder barrel buffering cylinder end cap and
Push rod connection.Under structure design, load buffering, bullet are carried out using spring buffer load cylinder between load nut and sample holder
Spring buffering load cylinder has buffer function, improves load stability, the structure of spring buffer cylinder barrel is simple.
The invention will be further described below in conjunction with the accompanying drawings.
Detailed description of the invention
Fig. 1 is specific embodiment of the invention material fatigue rig structural schematic diagram；
Fig. 2 is specific embodiment of the invention experimental rig schematic perspective view；
Fig. 3 is specific embodiment of the invention experimental rig top view；
Fig. 4 is the cross-sectional view in Fig. 3 along line A-A cutting；
Fig. 5 is part B (spindle mounted structure) partial enlarged view in Fig. 4；
Fig. 6 is C portion (tooling) partial enlarged view in Fig. 4；
Fig. 7 is the part D (axially loaded mechanism) partial enlarged view in Fig. 4.
Specific embodiment
Referring to shown in attached drawing 1 to attached drawing 7, cabinet 1, experimental rig 2, mainshaft mechanism 21, axial active interval 210, main shaft
211, spindle drive motor 212, base set 213, lower cover 2131, upper end cover 2132, bearing press mounting hole seat 21321, bushing
214, the first angular contact bearing 215, the second angular contact bearing 216, retaining ring 217, preload ring 218, conical bearing 219, it is axial plus
Mounted mechanism 22, loading motor 221, speed reducer 222 position cover for seat 223, and screw rod 224 loads nut 225, and spring buffer loads cylinder
226, buffer cylinder barrel 2261, buffer cylinder end cap 22611, cushion dashpot bottom plate 22612, buffer shaft 2262, annular flange 22621, delay
Rush disc spring group 2263, tooling 23, sample holder 231, sample holder ontology 2311, sliding seat 2312, test chamber 23121, gear oil cap
23122, fuel feed hole 23123, oil outlet 23124, oil partition tank 23125, fixes sleeve 2313, bottom cover 23131, oil return hole 23132,
Oil-recovery tank 23133, push rod 2314, connector 232.
A kind of material fatigue rig disclosed by the invention, including cabinet 1, cabinet 1 be equipped with experimental rig 2 with
And lubricating system, experimental rig 2 include mainshaft mechanism 21, axially loaded mechanism 22 and tooling 23, tooling 23 includes corresponding to
The sample holder 231 and connector 232 of cooperation, the sample holder 231 are connect with the loading end of axially loaded mechanism 22, connector
232 connect with the main shaft 211 of mainshaft mechanism 21, the sample holder 231 include sample holder ontology 2311, sliding seat 2312 and
Fixes sleeve 2313, fixes sleeve 2313 are fixed on cabinet 1, and 2312 straight line positioning and guiding of sliding seat is snug fit at fixing sleeve
In cylinder 2313, line channel is equipped on the inner wall of fixes sleeve 2313, sliding seat 2312 is equipped with flat key, and flat key protrudes into straight line
It constitutes sliding seat straight line positioning sliding in guide groove to be matched in fixes sleeve 2313,2313 bottom of fixes sleeve has bottom cover
23131,2312 bottom of sliding seat is connected with push rod 2314, and push rod 2314 and the sealing of bottom cover 23131 cooperate, and push rod 2314 is pierced by bottom
Lid 23131 is simultaneously connect with the loading end of axially loaded mechanism 22, and the test chamber 23121 of tubbiness, examination are equipped at the top of sliding seat 2312
Sample seat ontology 2311 is fixedly mounted on 23121 bottom of test chamber, and 23121 oral area of test chamber is stamped gear oil cap 23122, gear oil cap
23122 are equipped with the axis hole passed through for main shaft 211, and main shaft 211 and gland seal cooperate, and sealing ring are equipped in axis hole, through close
Seal ring realizes that the sealing of main shaft 211 and axis hole cooperates, and 23121 top of test chamber is equipped with the fuel feed hole higher than sample holder
23123,23121 bottom of test chamber is equipped with oil outlet 23124, and the oil outlet 23124 is connected to test chamber 23121 and fixes sleeve
2313 barrel chamber, the transfer storage that barrel chamber flows back as lubricating oil, the bottom of the fixes sleeve 2313 is equipped with to be connected to barrel chamber
Oil return hole 23132, fuel feed hole 23123 and oil return hole 23132 connect with lubricating system, is equipped at least two in the cabinet 1
Cover experimental rig 2.Wherein lubricating system is the ordinary skill in the art, generally includes shoe cream room, oil pump, oil pump are set in shoe cream room
Lubricating oil is pumped into fuel feed hole through oil pipe, under structure design of the invention, the fuel feed pump of lubricating system can pass through multiple branch pipes
It is connected on experimental rig, it is compact-sized；Lubricating oil system for lubrication oil circulation using when be usually also equipped with lubricating oil
Impurity stripper；Meanwhile material fatigue rig is usually also equipped with detection system, is known to those skilled in the art
Technology, so it will not be repeated.Rationally, the design of test chamber guarantees to provide reliable profit to sample for tool structure design of the invention
It is sliding, lubricating oil splash during the test is prevented, fixes sleeve guarantees that sliding seat stablizes tooling, and cooperates oil outlet in sliding seat
Realize that lubricating oil recycles transfer, barrel chamber of the lubricating oil through fixes sleeve, oil return hole reenter in lubricating system, and lubricating oil is simultaneously
Lubrication when sliding seat sliding is provided；So that compact overall structure, is accessed in lubricating system convenient for experimental rig, conveniently extremely
Few two sets of experimental rig design, realizes Optimum Design, improves detection efficiency.
The another port for connecting Single port on the oil outlet 23124 with 23121 bottom of test chamber is located at sliding seat 2312
Circumferential side wall on, between the barrel chamber side wall of sliding seat 2312 and fixes sleeve 2313 have oil-recovery tank 23133, oil outlet
23124 are connected to through oil-recovery tank 23133 with the barrel chamber of fixes sleeve 2313, are equipped in the axial bottom face of sliding seat 2312 around push rod
2314 oil partition tank 23125.Guarantee that oil return is reliable, oil partition tank blocks lubricating oil, and lubricating oil is avoided to reach along the wall of sliding seat
Push rod is oozed out along push rod.To further increase anti-oil leakage performance at push rod, on bottom cover 23131 integrally formed with
It is higher by the boss of the barrel chamber bottom of fixes sleeve 2313,2314 positioning and plug-in mounting of push rod is in boss and seals cooperation, axis
The sealing effect of push rod can be improved in hole seat.
In this specific embodiment, the mainshaft mechanism 21 includes spindle drive motor 212 and main shaft supporting component, main shaft
211 upper ends are connect with spindle drive motor 212, and main shaft supporting component includes base set 213 and bushing 214, and base set 213 is solid
Due on cabinet 1, bushing 214 is positioned in a manner of it can slide axially to be assemblied in base set 213, and the main shaft 211 passes through
Bushing 214, is supported with the first angular contact bearing 215 and the second angular contact bearing 216 between bushing 214 and main shaft 213, and first jiao
Axis is arranged on main shaft 211 loaded on main shaft 211 in the inner ring fixing sleeve of the inner ring of contact bearing 215 and the second angular contact bearing 216
Location and installation of the shoulder for the first angular contact bearing 215, the second angular contact bearing 216, the outer ring of the first angular contact bearing 215 and the
The outer ring of two angular contact bearings 216 is tight in the lumen of bushing 214, the first angular contact bearing 215 and the second angular contact bearing
216 are set to the lumen axial direction end positions of bushing 214, are respectively equipped with and the first angular contact bearing 215 at 214 two-port of bushing
The retaining ring 217(retaining ring that outer ring axially contradicts limit cooperation is integrally formed with bushing, naturally it is also possible to fill after parts processing
With) and axially contradict with the outer ring of the second angular contact bearing 216 preload ring 218 of limit cooperation, the pipe of the base set 213
Conical bearing 219 is equipped in chamber upper end, 219 outer ring of conical bearing is fixed on base set 213, the inner ring of conical bearing 219
It is fixed on main shaft 211.Bushing, the first angular contact axis, the second angular contact bearing and conical bearing realize the bearing of main shaft, are trying
When testing, after connector axial load protrudes into, bushing realizes axial movement under axial load forces, and realizes axially through conical bearing
It is stable and reliable in work to reach main shaft during the test for counterweight balance；And above-mentioned main shaft device is compact-sized, convenient for assembly and
Demolition and maintenance.The preload ring 218 is that excircle has externally threaded screwed ring, and it is right with screwed ring 218 to be equipped in bushing 214
The internal screw thread that should cooperate.Pretightning force that is convenient for assembly and adjusting the first angular contact bearing, the second angular contact bearing.
The lower cover 2131 of 214 lower end of bushing and base set 213, which contradicts, to be cooperated, 214 other end of bushing and base set
There is axial active interval 210 between 213 upper end cover 2132.The lower cover of base set contradicts bushing, through the first angular contact axis
It holds, power is transferred on conical bearing by the second angular contact bearing and main shaft, axial pretightening of the realization to conical bearing, raising main shaft
Run stability.
Further, bearing press mounting hole seat 21321, conical bearing 219 are equipped in the upper end cover 2132 of the base set 213
It is pressed in bearing press mounting hole seat 21321,21321 inner end of bearing press mounting hole seat is the press fitting mouth being pressed into for conical bearing 219, axis
Pressure-bearing, which fills 21321 outer end of hole seat, to be had and 219 outer ring axial direction defining flange of conical bearing.The compact assembling structure of conical bearing with
And conveniently.
In this specific embodiment, the axially loaded mechanism 22 includes loading motor 221, speed reducer 222 and lead screw
Nut body, the output end of loading motor 221 connect speed reducer 222, and leadscrew-nut mechanism includes positioning cover for seat 223 and screw rod
224, speed reducer 222 is fixedly installed in positioning cover for seat 223, and 224 position rotating of lead screw is matched in positioning cover for seat 223, screw rod
The output axis connection of 224 one end and speed reducer 222 has been threadedly engaged load nut 225 on screw rod 224, has loaded 225 straight line of nut
Positioning is snug fit in 223 sets of positioning seat, and flat key can be used in load nut 225 and the straight line positioning sliding for positioning cover for seat 223
Cooperate with line channel, the output end and push rod 2314 for loading nut 225 are sequentially connected.Axially loaded mechanism uses feed screw nut
Pair realizes, has simple and compact for structure, and load is controllable, the advantage that loading accuracy is high and load is reliable and stable.
Effect is loaded to improve, the output end of the load nut 225 is connected with spring buffer load cylinder 226, and spring is slow
Punching load cylinder 226 includes buffering cylinder barrel 2261 and buffer shaft 2262, and buffering 2261 one end of cylinder barrel is equipped with buffering cylinder end cap
22611, the buffering cylinder barrel other end is equipped with cushion dashpot bottom plate 22612, and cushion dashpot bottom plate 22612 is equipped with perforation axis hole, described slow
Rush axis 2262 be plugged in an axially sliding manner buffering cylinder barrel 2261 in, 2262 one end of buffer shaft stretch out perforation axis hole and with
Axis hole location fit is penetrated through, buffer shaft 2262 is equipped with the annular flange 22621 being located in buffering cylinder barrel 2261, annular flange
22621 cooperate with the limit of cushion dashpot bottom plate 22612, are equipped with buffering between the annular flange 22621 and buffering cylinder end cap 22611
Disc spring group 2263, the buffering disc spring group 2263 are made of several disc springs stacking, and the buffer shaft 2262 connects with load nut 225
It connects, the buffering cylinder end cap 22611 of the buffering cylinder barrel 2261 is connect with push rod 222314.
Claims (7)
1. a kind of material fatigue rig, including cabinet, cabinet is equipped with experimental rig and lubricating system, test dress
Setting includes mainshaft mechanism, axially loaded mechanism and tooling, and tooling includes the sample holder and connector of corresponding matching, described
Sample holder is connect with the loading end of axially loaded mechanism, the main shaft connection of connector and mainshaft mechanism, it is characterised in that: described
Sample holder includes sample holder ontology, sliding seat and fixes sleeve, and fixes sleeve is fixed on cabinet, and the positioning of sliding seat straight line is led
To being snug fit in fixes sleeve, fixes sleeve bottom has bottom cover, and sliding seat bottom is connected with push rod, and push rod is pierced by bottom cover
And connect with the loading end of axially loaded mechanism, push rod and bottom cover sealing cooperate, and the test chamber of tubbiness, examination are equipped at the top of sliding seat
Sample seat ontology is fixedly mounted on test chamber bottom, and test chamber oral area is stamped gear oil cap, and gear oil cap is equipped with the axis passed through for main shaft
Hole, main shaft and gland seal cooperate, and the test chamber top is equipped with the fuel feed hole higher than sample holder, and test chamber bottom is equipped with fuel-displaced
Hole, the barrel chamber of oil outlet the connection test chamber and fixes sleeve, the bottom of the fixes sleeve is equipped with time being connected to barrel chamber
Oilhole, fuel feed hole and oil return hole are connect with lubricating system, and at least two sets of experimental rigs, the oil outlet are equipped in the cabinet
The upper another port that Single port is connect with test chamber bottom is located in the circumferential side wall of sliding seat, the cylinder of sliding seat and fixes sleeve
There is oil-recovery tank, oil outlet is connected to the barrel chamber of fixes sleeve through oil-recovery tank, sets in sliding seat axial direction bottom face between chamber side wall
There is the oil partition tank around push rod.
2. material fatigue rig according to claim 1, it is characterised in that: the mainshaft mechanism includes that main shaft drives
Dynamic motor and main shaft supporting component, main shaft upper end are connect with spindle drive motor, main shaft supporting component include base cover and
Bushing, base set are fixed on cabinet, and bushing is positioned in a manner of it can slide axially to be assemblied in base set, and the main shaft is worn
Cross bushing, be supported with the first angular contact bearing and the second angular contact bearing between bushing and main shaft, the first angular contact bearing it is interior
The inner ring fixing sleeve of circle and the second angular contact bearing is loaded on main shaft, the outer ring of the first angular contact bearing and the second angular contact bearing
Outer ring be tight in the lumen of bushing, the first angular contact bearing and the second angular contact bearing are set to the lumen axial ends of bushing
Position is respectively equipped with the retaining ring that limit cooperation is axially contradicted with the outer ring of the first angular contact bearing at bushing two-port and with the
The outer ring of two angular contact bearings axially contradicts the preload ring of limit cooperation, is equipped with cone axis in the lumen upper end of the base set
It holds, conic bearing outer ring is fixed on base and puts on, and the inner ring of conical bearing is fixed on main shaft.
3. material fatigue rig according to claim 2, it is characterised in that: the bushing lower end and base set
Lower cover contradicts cooperation, has axial active interval between the bushing other end and the upper end cover of base set.
4. material fatigue rig according to claim 3, it is characterised in that: set in the upper end cover of the base set
There is bearing press mounting hole seat, in bearing press mounting hole seat, bearing press mounting hole seat inner end is to be pressed into for conical bearing for conical bearing press fitting
Press fitting mouth, bearing press mounting hole seat outer end have and conic bearing outer ring axial limiting flange.
5. material fatigue rig according to claim 2, it is characterised in that: the preload ring has for excircle
Externally threaded screwed ring is equipped with the internal screw thread with screwed ring corresponding matching in bushing.
6. material fatigue rig according to claim 1, it is characterised in that: the axially loaded mechanism includes
Loading motor, speed reducer and leadscrew-nut mechanism, the output end of loading motor connect speed reducer, and leadscrew-nut mechanism includes fixed
Position cover for seat and screw rod, speed reducer are fixedly installed in positioning seat and put on, and lead screw position rotating is matched in positioning cover for seat, screw rod one
The output axis connection with speed reducer is held, load nut has been threadedly engaged on screw rod, it is fixed that load nut straight line positioning is snug fit at
In the cover for seat of position, the output end and push rod for loading nut are sequentially connected.
7. material fatigue rig according to claim 6, it is characterised in that: the output end of the load nut connects
It is connected to spring buffer load cylinder, spring buffer load cylinder includes buffering cylinder barrel and buffer shaft, and buffering cylinder barrel one end is equipped with slow
Rush cylinder end cap, the buffering cylinder barrel other end is equipped with cushion dashpot bottom plate, and cushion dashpot bottom plate is equipped with perforation axis hole, and the buffer shaft is with can
In axial sliding mode be plugged in buffering cylinder barrel in, buffer shaft one end stretch out perforation axis hole and with perforation axis hole location fit, delay
It rushes axis and is equipped with the annular flange being located in buffering cylinder barrel, annular flange and the limit of cushion dashpot bottom plate cooperate, the annular flange
Buffering cylinder end cap between be equipped with buffering disc spring group, the buffering disc spring group by several disc springs stacking constitute, the buffer shaft and
Nut connection is loaded, the buffering cylinder end cap of the buffering cylinder barrel is connect with push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710157117.4A CN106769839B (en) | 2017-03-16 | 2017-03-16 | Material fatigue rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710157117.4A CN106769839B (en) | 2017-03-16 | 2017-03-16 | Material fatigue rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106769839A CN106769839A (en) | 2017-05-31 |
| CN106769839B true CN106769839B (en) | 2019-05-28 |
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ID=58966171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710157117.4A Active CN106769839B (en) | 2017-03-16 | 2017-03-16 | Material fatigue rig |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6467330B1 (en) * | 1999-01-15 | 2002-10-22 | Joze Vizintin | Apparatus for testing physical characteristics, especially rolling contact fatigue resistance of materials |
| CN100374846C (en) * | 2005-07-09 | 2008-03-12 | 燕山大学 | Work condition analogue rolling contact fatigue tester |
| CN101393096A (en) * | 2008-10-24 | 2009-03-25 | 华东理工大学 | Coatings rolling contact fatigue tester |
| CN103344553B (en) * | 2013-07-01 | 2015-01-07 | 燕山大学 | High-speed rolling contact fatigue testing machine |
| CN103592117B (en) * | 2013-11-22 | 2016-04-06 | 深圳天祥质量技术服务有限公司 | A kind of handle fatigue test machine |
| CN203688343U (en) * | 2013-12-13 | 2014-07-02 | 中国航空工业集团公司北京航空精密机械研究所 | Main shaft device for ball rolling contact fatigue tester |
| CN104019989B (en) * | 2014-06-05 | 2016-05-18 | 燕山大学 | The electronic loaded type rolling contact fatigue-testing machine of a kind of lever |
| CN106442190A (en) * | 2016-12-22 | 2017-02-22 | 浙江工业大学 | Thermally sprayed coating contact fatigue test machine capable of realizing failure early warning |
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2017
- 2017-03-16 CN CN201710157117.4A patent/CN106769839B/en active Active
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| CN106769839A (en) | 2017-05-31 |
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Address after: 325000 Wenzhou economic and Technological Development Zone, Wenzhou, Wenzhou, Zhejiang Province, No. 515, seashore Applicant after: C & U Group Ltd. Applicant after: SHANGHAI C&U GROUP Co.,Ltd. Address before: 325000 No. 16, Yong Jiang Road, Wenzhou economic and Technological Development Zone, Zhejiang, China Applicant before: C & U Group Ltd. Applicant before: SHANGHAI C&U GROUP Co.,Ltd. |
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Address after: 325000 Wenzhou economic and Technological Development Zone, Wenzhou, Wenzhou, Zhejiang Province, No. 515, seashore Patentee after: C&U Co.,Ltd. Patentee after: SHANGHAI C&U GROUP Co.,Ltd. Address before: 325000 Wenzhou economic and Technological Development Zone, Wenzhou, Wenzhou, Zhejiang Province, No. 515, seashore Patentee before: C & U Group Ltd. Patentee before: SHANGHAI C&U GROUP Co.,Ltd. |
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Effective date of registration: 20210331 Address after: 325000 Binhai five road 515, Wenzhou economic and Technological Development Zone, Zhejiang Patentee after: C&U Co.,Ltd. Patentee after: SHANGHAI C&U GROUP Co.,Ltd. Patentee after: SHANGHAI RENBEN PRECISION MACHINERY CO.,LTD. Address before: 325000 No. five Binhai Road, Wenzhou economic and Technological Development Zone, Wenzhou, Zhejiang, 515 Patentee before: C&U Co.,Ltd. Patentee before: SHANGHAI C&U GROUP Co.,Ltd. |