CN107894370A - A kind of straight pin fatigue tester - Google Patents
A kind of straight pin fatigue tester Download PDFInfo
- Publication number
- CN107894370A CN107894370A CN201711273814.2A CN201711273814A CN107894370A CN 107894370 A CN107894370 A CN 107894370A CN 201711273814 A CN201711273814 A CN 201711273814A CN 107894370 A CN107894370 A CN 107894370A
- Authority
- CN
- China
- Prior art keywords
- protecgulum
- rotating shaft
- straight pin
- casing
- bearing
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 11
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0033—Weight
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0266—Cylindrical specimens
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of straight pin fatigue tester, it includes the casing being fixed together and protecgulum, there is cavity in casing and protecgulum, rotating shaft is installed in the cavity, protecgulum is stretched out in one end of rotating shaft, the other end is located at cavity inside, spring bearing is provided between rotating shaft and protecgulum, one end that protecgulum is stretched out in rotating shaft is externally connected with the drive mechanism that drive shaft rotates, one end that rotating shaft is located in cavity is connected with crank, crank is connected by tested straight pin with rotating shaft, vertically arranged slender axles are connected with crank by bearing pin, the lower end of slender axles passes from casing or protecgulum and is connected with weight.The present invention is in test, drive mechanism drive shaft rotates, slender axles move up and down when rotating shaft rotates, tested straight pin is worn by the gravity of weight, radial load that can be suffered by clear and definite straight pin by gravitational load method, by analyzing the degree of wear of straight pin in the course of the work so as to accurately calibrating the service life of straight pin.
Description
Technical field
The present invention relates to a kind of straight pin fatigue tester, to test straight pin radial force situation, belongs to machinery zero
Part test tool technical field.
Background technology
Straight pin, can also be as the part of safety device typically to couple, lock part or be used as assembling positioning.Circle
Pin is fixed in pin-and-hole by interference, to retaining element, passing power, or makees keeper.The anti-self-revolving machine of compressor of air conditioner
Gasket-pin structure in structure can use straight pin, and in the course of the work, straight pin is acted on compressor by radial load.Straight pin stress
Excessive or long-term radial force, it may occur that abrasion is even broken, so as to influence the normal work of compressor.And prior art lacks
Few device tested straight pin radial force situation.
The content of the invention
It is an object of the invention to provide a kind of straight pin fatigue tester that can test straight pin radial force situation.
The present invention adopts the following technical scheme that：A kind of straight pin fatigue tester, it includes the machine being fixed together
There is cavity in shell and protecgulum, casing and protecgulum, rotating shaft is installed in the cavity, protecgulum, other end position are stretched out in one end of rotating shaft
Spring bearing is provided between cavity inside, rotating shaft and protecgulum, one end that protecgulum is stretched out in rotating shaft is externally connected with drive shaft rotation
Drive mechanism, one end that rotating shaft is located in cavity is connected with crank, and the crank is connected by tested straight pin with rotating shaft, song
Vertically arranged slender axles are connected with handle by bearing pin, the lower end of slender axles passes and is connected with from casing or protecgulum
Weight.
The drive mechanism is belt pulley clutch, and belt pulley clutch includes the clutch and skin being fixed together
Pulley assemblies, clutch are connected with the rotating shaft, and pulley assembly includes belt pulley, sucker and line bag, and the protecgulum is close to
One axle envelope position is bulge-structure, and 3rd bearing is provided between belt pulley and the outer surface of protecgulum bulge-structure.
The casing is provided with visor, and visor passes through O-ring seal and casing sealing.
The visor includes side-view mirror and orthoptoscope, and side-view mirror is arranged on cabinet sides, and orthoptoscope is arranged on casing just
To the position of straight pin end face.
The rotating shaft is provided with the first axle envelope between the part of drive mechanism and protecgulum, slender axles and casing or protecgulum it
Between be provided with the second axle envelope.
The spring bearing includes clutch shaft bearing and second bearing, and clutch shaft bearing is arranged in rotating shaft close to the first axle envelope
Opening position, second bearing are arranged in rotating shaft at crank position.
Together with the casing is bolted to connection with protecgulum.
The beneficial effects of the invention are as follows：In test, crank is connected the present invention with rotating shaft by tested straight pin, will be elongated
Axis connection connects weight in slender axles lower end on crank, drive mechanism drive shaft rotation, when rotating shaft rotates on slender axles
Lower action, tested straight pin are worn by the gravity of weight, pass through the radial direction suffered by the clear and definite straight pin of gravitational load method energy
Power, by analyzing the degree of wear of straight pin in the course of the work so as to accurately calibrating the service life of straight pin.
Preferably, rotated, can be run with the anti-rotation mechanism of analog compression machine, tool by belt pulley clutch drive shaft
There is the advantages of cost is low, easy to maintenance, noise is small.
Preferably, visor is set on casing, it is observed that the working order inside testing machine, is easy to monitor and ties up
Repair.
Preferably, the first axle envelope makes to realize sealing between rotating shaft and protecgulum, and the second axle envelope makes slender axles and casing or protecgulum
Between realize sealing.
Preferably, rotating shaft can preferably be supported by clutch shaft bearing and second bearing.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the present invention.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
The structure of an embodiment of the present invention is as shown in figure 1, the straight pin fatigue tester of the present embodiment, including fixation connect
The casing 14 and protecgulum 9 being connected together, the casing 14 and protecgulum 9 are fixed together by bolt 7.Casing 14 and protecgulum
There is cavity in 9, rotating shaft 6 is installed in the cavity, one end stretching protecgulum 9, the other end of rotating shaft 6 are located at cavity inside, rotating shaft 6
Spring bearing is provided between protecgulum 9, the spring bearing includes clutch shaft bearing 8 and second bearing 10, and clutch shaft bearing 8 is arranged on
Close to the opening position of the first axle envelope 4 in rotating shaft 6, second bearing 10 is arranged in rotating shaft 6 close to the opening position of crank 13.Rotating shaft 6 is stretched
The one end for going out protecgulum is externally connected with the drive mechanism of drive shaft rotation, and rotating shaft 6 is between the part of drive mechanism and protecgulum 9
Provided with the first axle envelope 4, one end that rotating shaft 6 is located in cavity is connected with crank 13, the crank 13 by tested straight pin 12 with
Rotating shaft 6 connects, and is connected with vertically arranged slender axles 16 on crank 13 by bearing pin 15, and the lower ends of slender axles 16 is from casing
Passed in 14 and be connected with weight 18, the second axle envelope 17 is provided between slender axles 16 and casing 6.
The casing 14 is provided with visor, and visor is sealed by O-ring seal and casing 14.The visor includes side-view mirror
11 and orthoptoscope 18, side-view mirror 11 be arranged on the side of casing 14, orthoptoscope 18 is arranged on the end face of face straight pin 12 on casing 14
Position.
Drive mechanism is belt pulley clutch in the present embodiment, and belt pulley clutch includes the clutch being fixed together
Device 20 and pulley assembly, clutch 20 are connected with the rotating shaft 6, pulley assembly include belt pulley, sucker and line bag 1,2,
3, the protecgulum is bulge-structure close to the position of the first axle envelope 4, and the is provided between belt pulley and the outer surface of protecgulum bulge-structure
Three bearings 5.
The testing machine of the present embodiment is driven using belt pulley clutch, and belt pulley 2 is coordinated by 3rd bearing 5 and protecgulum 9,
The drive shaft 6 of clutch 20 is worked, and rotating shaft 6 is sealed with protecgulum 9 by the first axle envelope 4, and rotating shaft 6 passes through clutch shaft bearing 8, the second axle
Hold 10 with protecgulum 9 to coordinate, protecgulum 9 is installed together with casing 14 by bolt 7, and crank 13 is with rotating shaft 6 by being tested straight pin
12 are connected and work, and crank 13 is connected with slender axles 16 by bearing pin 15, realize that slender axles 16 move up and down in casing 14, by
Second axle envelope 17 is sealed, and the lower end of slender axles 16 is ined succession weight 18, and a works passes through oil lubrication in testing machine.Examination
When testing machine operation, the working order inside testing machine can be observed by side-view mirror 11 and orthoptoscope 20, is easy to monitor and ties up
Repair.
In test, crank is connected with rotating shaft by tested straight pin, and slender axles are connected on crank, and in slender axles
Lower end connects weight, and the rotation of drive mechanism drive shaft, slender axles move up and down when rotating shaft rotates, and is tested straight pin by weight
Gravity and wear, radial load that can be suffered by clear and definite straight pin by gravitational load method, by analyzing straight pin worked
The degree of wear in journey is so as to accurately calibrating the service life of straight pin.
Above-described embodiment is a kind of preferred embodiment of the present invention, and in the other embodiments of the present invention, drive mechanism is also
Can be other mechanisms that can be rotated with drive shaft such as motor.
In the other embodiments of the present invention, the lower end of slender axles can also be to be passed from protecgulum, and the second axle envelope should be set
Put between protecgulum and slender axles.
Claims (7)
- A kind of 1. straight pin fatigue tester, it is characterised in that：It includes the casing being fixed together（14）And protecgulum （9）, casing（14）And protecgulum（9）It is interior that there is cavity, rotating shaft is installed in the cavity（6）, rotating shaft（6）One end stretch out protecgulum （9）, the other end be located at cavity inside, rotating shaft（6）With protecgulum（9）Between be provided with spring bearing, rotating shaft（6）Stretch out one end of protecgulum It is externally connected with the drive mechanism of drive shaft rotation, rotating shaft（6）One end in cavity is connected with crank（13）, the crank （13）By being tested straight pin（12）With rotating shaft（6）Connection, crank（13）On pass through bearing pin（15）It is connected with vertically arranged Slender axles（16）, slender axles（16）Lower end from casing（14）Or protecgulum（9）In pass and be connected with weight（18）.
- 2. straight pin fatigue tester according to claim 1, it is characterised in that：The drive mechanism is belt pulley clutch Device, belt pulley clutch include the clutch being fixed together（20）And pulley assembly, clutch（20）With described turn Axle（6）Connection, pulley assembly include belt pulley, sucker and line bag（1、2、3）, the protecgulum is close to the first axle envelope（4）Position It is bulge-structure, 3rd bearing is provided between belt pulley and the outer surface of protecgulum bulge-structure（5）.
- 3. straight pin fatigue tester according to claim 1, it is characterised in that：The casing（14）Visor is provided with, Visor passes through O-ring seal and casing（14）Sealing.
- 4. straight pin fatigue tester according to claim 3, it is characterised in that：The visor includes side-view mirror（11）With Orthoptoscope（18）, side-view mirror（11）It is arranged on casing（14）Side, orthoptoscope（18）It is arranged on casing（14）Upper face straight pin （12）The position of end face.
- 5. the straight pin fatigue tester according to Claims 1-4 any one, it is characterised in that：The rotating shaft（6）Lean on The part of nearly drive mechanism and protecgulum（9）Between be provided with the first axle envelope（4）, slender axles（16）With casing（6）Or protecgulum（9）Between Provided with the second axle envelope（17）.
- 6. straight pin fatigue tester according to claim 5, it is characterised in that：The spring bearing includes clutch shaft bearing （8）And second bearing（10）, clutch shaft bearing（8）It is arranged on rotating shaft（6）Upper close first axle envelope（4）Opening position, second bearing （10）It is arranged on rotating shaft（6）Upper close crank（13）Opening position.
- 7. straight pin fatigue tester according to claim 5, it is characterised in that：The casing（14）And protecgulum（9）It is logical Cross bolt（7）It is fixed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711273814.2A CN107894370A (en) | 2017-12-06 | 2017-12-06 | A kind of straight pin fatigue tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711273814.2A CN107894370A (en) | 2017-12-06 | 2017-12-06 | A kind of straight pin fatigue tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107894370A true CN107894370A (en) | 2018-04-10 |
Family
ID=61807184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711273814.2A Pending CN107894370A (en) | 2017-12-06 | 2017-12-06 | A kind of straight pin fatigue tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107894370A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201335766Y (en) * | 2008-12-16 | 2009-10-28 | 中国矿业大学 | Frictional wear testing machine for cylinder sleeve and piston ring |
| CN102288502A (en) * | 2011-05-13 | 2011-12-21 | 中国矿业大学 | Variable-load cylinder-sleeve piston-ring frictional wear testing device |
| DE102011105921A1 (en) * | 2011-06-29 | 2013-01-03 | Magna Powertrain Ag & Co. Kg | Testing device for determining friction and wear by relative motion of test bodies, comprises two test bodies, which rotate around specific axis, where test bodies are arranged, such that end surface contacts with former test body |
| CN103245581A (en) * | 2013-04-17 | 2013-08-14 | 合肥工业大学 | Duplex piston ring-cylinder sleeve frictional wear test station |
| CN104374661A (en) * | 2014-11-28 | 2015-02-25 | 中国科学院金属研究所 | High-temperature high-pressure in-situ composite fretting test device |
| CN106769579A (en) * | 2016-12-13 | 2017-05-31 | 李霞林 | A kind of small friction abrasion tester |
| CN207650047U (en) * | 2017-12-06 | 2018-07-24 | 南京奥特佳新能源科技有限公司 | A kind of straight pin fatigue tester |
-
2017
- 2017-12-06 CN CN201711273814.2A patent/CN107894370A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201335766Y (en) * | 2008-12-16 | 2009-10-28 | 中国矿业大学 | Frictional wear testing machine for cylinder sleeve and piston ring |
| CN102288502A (en) * | 2011-05-13 | 2011-12-21 | 中国矿业大学 | Variable-load cylinder-sleeve piston-ring frictional wear testing device |
| DE102011105921A1 (en) * | 2011-06-29 | 2013-01-03 | Magna Powertrain Ag & Co. Kg | Testing device for determining friction and wear by relative motion of test bodies, comprises two test bodies, which rotate around specific axis, where test bodies are arranged, such that end surface contacts with former test body |
| CN103245581A (en) * | 2013-04-17 | 2013-08-14 | 合肥工业大学 | Duplex piston ring-cylinder sleeve frictional wear test station |
| CN104374661A (en) * | 2014-11-28 | 2015-02-25 | 中国科学院金属研究所 | High-temperature high-pressure in-situ composite fretting test device |
| CN106769579A (en) * | 2016-12-13 | 2017-05-31 | 李霞林 | A kind of small friction abrasion tester |
| CN207650047U (en) * | 2017-12-06 | 2018-07-24 | 南京奥特佳新能源科技有限公司 | A kind of straight pin fatigue tester |
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