CN109187018A - Self-lubricating bush life tests fixture and its detection method - Google Patents
Self-lubricating bush life tests fixture and its detection method Download PDFInfo
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- CN109187018A CN109187018A CN201811259796.7A CN201811259796A CN109187018A CN 109187018 A CN109187018 A CN 109187018A CN 201811259796 A CN201811259796 A CN 201811259796A CN 109187018 A CN109187018 A CN 109187018A
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- support
- lubricating bush
- lubricating
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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
- G01M13/04—Bearings
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- General Physics & Mathematics (AREA)
- Sliding-Contact Bearings (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to a kind of self-lubricating bush life tests fixtures, including support, mandrel and load plate, support includes structure and size the first support and the second support all the same, the bottom of first support and the second support is equipped with the first through hole and the second through-hole of coaxial line, the upper end of load plate is equipped with third through-hole, and load plate is connected with the first support and the second support coaxial line；Self-lubricating bush group includes the first self-lubricating bush, the second self-lubricating bush and third self-lubricating bush set on load plate third through-hole set on first through hole, and the 4th self-lubricating bush set on the second through-hole, the structure and size of four self-lubricating bushes are all the same and axis is overlapped, while inner surface fits with mandrel.The apparatus structure is simple, can carry out the life test of 4 bushings simultaneously, provide fixture assembly efficiency, reduce experimentation cost.
Description
Technical field
The present invention relates to Bearing testing technical fields, and in particular to a kind of self-lubricating bush life tests fixture and its inspection
Survey method.
Background technique
Self-lubricating bush belongs to one kind of bushing, belongs to sliding bearing, and basic model is to add self-lubricating layer by metallic substrates, tool
Have load-carrying ability big, shock resistance, anticorrosive, wear-resistant, self-lubricating, it is non-maintaining the features such as, be widely used in aerospace, engineering
Machinery, truck, water conservancy projects etc..
Currently, fixture used in self-lubricating bush life test accompanies examination bearing, 2 jacking blocks, 2 by 2 supports, 2
End cap, load plate, tightens the compositions such as nut, subject bushing at mandrel.Subject bushing is mounted in load plate, and when test, test is set
It is standby that radial load is applied to load plate, and swung with dynamic test mandrel, so that the service life to bushing is detected, the experimental rig
Main problem be that the test of a bushing can only be carried out every time, test efficiency is low, and furthermore structure is complicated for experimental rig, part
Quantity is more, increases processing cost, reduces assembly efficiency.
Summary of the invention
For above situation, the present invention provides a kind of self-lubricating bush life tests fixture, can carry out 4 axis simultaneously
The life test of lining, detection fixture is safe and reliable, and fixture is improved by structure, has not only improved fixture assembly efficiency, but also reduce
Experimentation cost.
The present invention provides a kind of self-lubricating bush life tests fixture, including support, mandrel and load plate, the support
Including the first support and the second support, first support is equipped with first through hole, second support is equipped with the second through-hole, described
First through hole and second through-hole hole length having the same and aperture, and the Kong Changyu each self-lubricating bush to be detected
It is of same size；The load plate is folded between first support and second support and can apply to the mandrel default
Radial force, the load plate are equipped with third through-hole, the third through-hole and the first through hole and the second through-hole coaxial line, and
Two times of the hole of a length of first through hole in the hole of the third through-hole or second through-hole length；There is identical knot by four
The self-lubricating bush group to be detected of structure and size with interference fit type be separately positioned on the first through hole, the second through-hole and
On the inner wall of third through-hole, the mandrel be threaded through in the inner hole of the self-lubricating bush group to be detected and with it is described to be detected
Self-lubricating bush group formed clearance fit setting.
Preferably, first support and the second support are in identical L-type configuration, and first support and the second support are equal
Bottom plate and side plate are respectively included, the side plate is perpendicular to the bottom plate.
Preferably, the bottom plate is equipped with multiple symmetrically arranged mounting holes and a positioning groove, the positioning groove
On the lower surface of the bottom plate.
Preferably, the bottom plate and side plate are integrally formed.
A kind of detection method using the self-lubricating bush life tests fixture, comprising the following steps:
S1, by four self-lubricating bush groups to be detected be sequentially loaded into the first through hole to the first support, load plate
In second through-hole of three through-holes and the second support, and measure the internal diameter initial value of self-lubricating bush group to be detected；
S2, the second through-hole that mandrel is passed through to the second support in order, the third through-hole of load plate and the first support
One through-hole；
S3, bottom plate is mounted on testing equipment base by mounting hole and positioning groove, by load plate and testing equipment
Radial loading device connection, the pendulous device of the larger diameter end of mandrel and testing equipment connects；
S4, starting testing equipment, the radial loading device of testing equipment is by load plate to four self-lubricatings to be detected
Bushing group applies an equal amount of preset radial load, by the oscillating oil cylinder band moving mandrel of pendulous device with ± 15 ° of pivot angles and
Predeterminated frequency reciprocally swinging measures inner diameter values after the abrasion of self-lubricating bush group to be detected after n times reciprocally swinging；
The difference of inner diameter values is bushing abrasion loss after S5, the internal diameter initial value of self-lubricating bush group to be detected and abrasion, when
The abrasion loss of bushing should be less than obtaining qualified self-lubricating bush when 0.1mm.
The invention has the following advantages:
1, subject self-lubricating bush bearing is separately mounted in support and load plate by the present invention, realizes primary test energy
It is enough that life test is carried out to 4 self-lubricating bushes simultaneously, substantially increase test efficiency；
2, structure of the invention is simple, and detection clamp part type and quantity are less, reduces processing cost, improves
Assembly efficiency.
Detailed description of the invention
Fig. 1 is the testing equipment overall schematic with self-lubricating bush life tests fixture of the present invention；
Fig. 2 is the half-sectional axis of no-feathering side schematic diagram of self-lubricating bush life tests fixture of the present invention；
Fig. 3 is the half-sectional main view of self-lubricating bush life tests fixture of the present invention；And
Half-sectional main view when Fig. 4 is self-lubricating bush life tests fixture spindle-less of the present invention and self-lubricating bush group
Figure.
Main appended drawing reference:
First support 1；Mandrel 2；Load plate 3；Second support 4；Bottom plate 5；Side plate 6；Radial loading device 7；Pendulous device
8；Self-lubricating bush group 10；
First through hole 11；Third through-hole 31；Cylinder groove 32；Second through-hole 41；Positioning groove 51；Mounting hole 52；First certainly
Lubricate bushing 101；Second self-lubricating bush 102；Third self-lubricating bush 103；4th self-lubricating bush 104；
Specific embodiment
By the technology contents of the detailed present invention, structure feature, reach purpose and efficacy, below with reference to Figure of description
It is described in detail.
As shown in Figure 1 to 4, a kind of self-lubricating bush life tests fixture, including support, mandrel 2 and load plate 3,
Support includes structure and size the first support 1 and the second support 4 all the same, and the first support 1 and the second support 4 are oppositely arranged simultaneously
And be of an L-shaped structure, the first support 1 includes bottom plate 5 and side plate 6, and bottom plate 5 and side plate 6 are arranged substantially perpendicular to each other, it is preferable that side plate 6
It is the sub-assembly that an integrally formed structural member either the two is fixedly secured to one another with bottom plate 5.Similarly, the second support 4
Including bottom plate 5 and side plate 6.The bottom surface of first support 1 and the bottom surface of the second support 4 are in the same plane, there are two bottom plate 5 is set
Or four mounting holes 52, support is fixed on testing equipment base, is additionally provided with positioning groove on the lower surface of bottom plate 5
51, by the base of support and testing equipment to just, and support and testing equipment base are fastened on together by connecting key.From
Lubrication bushing group 10 includes the first self-lubricating bush 101, the second self-lubricating bush 102, third self-lubricating for being sequentially distributed setting
Bushing 103 and the 4th self-lubricating bush 104, four self-lubricating bush structures are essentially identical.The side plate 6 of first support 1 is equipped with
First through hole 11, is equipped with the first self-lubricating bush 101 in first through hole 11, first through hole 11 and the first self-lubricating bush 101
Two end faces of equal length, the side plate 6 of the first support 1 and the first self-lubricating bush 101 are concordant；In the side plate 6 of second support 4
Equipped with the second through-hole 41, the 4th self-lubricating bush 104, the second through-hole 41 and the 4th self-lubricating bush are equipped in the second through-hole 41
104 equal length, the side plate of the second support 4 and two end faces of the 4th self-lubricating bush 104 are concordant；The top of load plate 3
Center is equipped with cylinder groove 32, can connect with the testing equipment for being capable of providing radial load, and the bottom of load plate 3 is logical equipped with third
Hole 31, is equipped with the second self-lubricating bush 102 and third self-lubricating bush 103 in third through-hole 31, and the width of load plate 3 is equal to the
The sum of two self-lubricating bushes 102 and the length of third self-lubricating bush 103, the first self-lubricating bush 101, the second self-lubricating bush
102, the structure and size of third self-lubricating bush 103 and the 4th self-lubricating bush 104 are all the same and are coaxially arranged, respectively
The inside for lubricating bushing is connected equipped with mandrel 2, and the right side larger diameter end of mandrel 2 is connected with the pendulous device 8 of testing equipment.Pendulum
Dynamic device 8 realizes ± 15 ° of pendulum motion with moving mandrel 2 around the axis of mandrel 2, holds to four tested self-lubricating bushes and applies respectively
Add identical torque.
The axis coincidence of the axis of mandrel 2, the axis of first through hole 11, the axis of the second through-hole 41 and third through-hole 31,
The diameter of the diameter of first through hole 11, the diameter of the second through-hole 41 and third through-hole 31 is equal.
When test, the radial loading device 7 of testing equipment is directed at the top cylindrical slot 32 of load plate 3, and applies radial load
Lotus, four tested self-lubricating bushes bear identical radial load, and the pendulous device 8 of testing equipment is swung with dynamic test mandrel 2,
To realize the detection to the bushing service life.
A kind of detection method using the self-lubricating bush life tests fixture, comprising the following steps:
S1, by four self-lubricating bush groups to be detected be sequentially loaded into the first through hole to the first support, load plate
In second through-hole of three through-holes and the second support, and measure the internal diameter initial value of self-lubricating bush group to be detected；
S2, the second through-hole that mandrel is passed through to the second support in order, the third through-hole of load plate and the first support
One through-hole；
S3, bottom plate is mounted on testing equipment base by mounting hole and positioning groove, by load plate and testing equipment
Radial loading device connection, the pendulous device of the larger diameter end of mandrel and testing equipment connects；
S4, starting testing equipment, the radial loading device of testing equipment is by load plate to four self-lubricatings to be detected
Bushing group applies an equal amount of preset radial load, by the oscillating oil cylinder band moving mandrel of pendulous device with ± 15 ° of pivot angles and
Predeterminated frequency reciprocally swinging measures inner diameter values after the abrasion of self-lubricating bush group to be detected after n times reciprocally swinging；
The difference of inner diameter values is bushing abrasion loss after S5, the internal diameter initial value of self-lubricating bush group to be detected and abrasion, when
The abrasion loss of bushing should be less than obtaining qualified self-lubricating bush when 0.1mm.
The present invention is specifically described so that a self-lubricating bush of HB 8106-6 × 10 swings wear-out life test as an example:
The outer diameter 8mm of the self-lubricating bush of HB 8106-6 × 10, internal diameter 6mm, length 10mm.
Corresponding detection fixture is devised according to the structure of the self-lubricating bush as shown in Figure 1, wherein 1 He of the first support
Second support 4 is all made of 45 Steel materials, hardness > HRC40, and the material of mandrel 2 is 30CrMnSiA, chrome-faced, and hardness >
HRC50, surface roughness are not less than Ra0.2.
1) when testing, the second self-lubricating bush 102 and third self-lubricating bush 103 are packed into the third of load plate 3 first
In through-hole 31, the first self-lubricating bush 101 is fitted into the first through hole 11 of the first support 1, the 4th self-lubricating bush 104 is filled
Enter in the second through-hole 41 of the second support 4.Mandrel 2 is sequentially passed through into the second support 4, load plate 3 and the first support 1, such as Fig. 2 institute
Show.
2) then the set experimental provision is mounted on the base of testing equipment, wherein the radial direction of load plate 3 and testing machine
Loading device 7 connects, and the right end of mandrel 2 is connect with the oscillating oil cylinder of pendulous device 8, and the first support 1 and the second support 4 pass through bottom
The mounting hole 52 of plate 5 is connected on the pedestal of testing machine.
3) starting control program, the radial loading device 7 of testing machine is by load plate 3 to the first self-lubricating bush 101, the
Two self-lubricating bushes 102, third self-lubricating bush 103 and the 4th self-lubricating bush 104 apply the radial load of 8KN, swing oil
Certain pivot angle and frequency reciprocally swinging are pressed by cylinder band moving mandrel 2, and in the preferred embodiment, oscillating oil cylinder band moving mandrel 2 is around its axis
Line presses+15 ° of pivot angle and frequency reciprocally swinging, realizes the test that wear-out life is swung to self-lubricating bush.Specific test ginseng
Number is as shown in table 1:
The specific test parameters of table 1
| Test parameters | Test parameters value |
| Radial load | 8kN |
| Pivot angle | ±15° |
| Hunting frequency | 12.73Hz |
| Number of oscillations | 100000 times |
Test it is forward and backward respectively measurement installation after self-lubricating bush group 10 carrying direction internal diameter, the difference of the two is axis
The abrasion loss of lining, according to the requirement of HB 8108, after 100000 swing wear tests of bearing, the abrasion loss of self-lubricating bush is answered
Less than 0.1mm.Test for the first time measure 4 subject bushings abrasion losses be respectively as follows: 0.02mm, 0.04mm, 0.04mm,
0.03mm；After more renewing one group of 4 tested bushing, bushing and device are reinstalled again, measure new one group of 4 tested self-lubricating
The abrasion loss of bushing is respectively as follows: the requirement that 0.02mm, 0.02mm, 0.02mm, 0.03mm are all satisfied standard.
And it is specifically described so that a self-lubricating bush of HB 8106-24 × 22 swings wear-out life test as an example.
The outer diameter 27mm of the self-lubricating bush of HB 8106-24 × 22, internal diameter 24mm, length 22mm are similar to above-described embodiment
Operating procedure, the specific steps are as follows:
1) when testing, the second self-lubricating bush group 102 and third self-lubricating bush group 103 are packed into load plate 3 first
In third through-hole 31, the first self-lubricating bush group 101 is fitted into the first through hole 11 of the first support 1, by the 4th self-lubricating axis
Lining group 104 is fitted into the second through-hole 41 of the second support 4.Mandrel 2 is sequentially passed through into the second support 4, load plate 3 and the first support
1, as shown in Figure 2.
2) then the set experimental provision is mounted on the base of testing equipment, wherein the radial direction of load plate 3 and testing machine
Loading device 7 connects, and the right end of mandrel 2 is connect with the oscillating oil cylinder of pendulous device 8, and the first support 1 and the second support 4 pass through bottom
The mounting hole 52 of plate 5 is connected on the pedestal of testing machine, as shown in Figure 1.
3) starting control program, the radial loading device 7 of testing machine by load plate 3 to the first self-lubricating bush group 101,
Second self-lubricating bush group 102, third self-lubricating bush group 103 and the 4th self-lubricating bush group 104 apply the radial of 8KN and carry
Certain pivot angle and frequency reciprocally swinging are pressed by lotus, oscillating oil cylinder band moving mandrel 2, and in the preferred embodiment, oscillating oil cylinder drives core
Axis 2 presses+15 ° of pivot angle and frequency reciprocally swinging around its axis, realizes the test that wear-out life is swung to self-lubricating bush.Specifically
Test parameters it is as shown in table 2:
The specific test parameters of table 2
Abrasion losses of measure 4 subject self-lubricating bushes of this test be respectively as follows: 0.01mm, 0.02mm, 0.04mm,
0.06mm is all satisfied the requirement of standard.
Compared to fixture used in existing self-lubricating bush life test, the present invention is reducing jacking block, end cap, is tightening
While the part such as nut, the self-lubricating bush quantity of test simultaneously is improved to 4, part category and quantity had both been reduced,
It reduces the set-up time and installation is complicated, reduce costs, and improve detection efficiency and ensure that the maximum phase of detection environment
Like property.
Figure of description and above-mentioned introduction are directed to the self-lubricating bush of single diameter model, it is preferable that are directed to different shaped
Number self-lubricating bush test and need, can be in the first support 1, load plate 3 and the integrally disposed several pores of the second support 4, to realize
The target of a tractor serves several purposes, is further reduced experimentation cost and time.
The above is the preferred embodiment of the application, is not limited the scope of protection of the present invention with this, it is noted that right
For those skilled in the art, under the premise of not departing from this technology principle, can also make it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the application.
Claims (5)
1. a kind of self-lubricating bush life tests fixture, including support, mandrel and load plate, which is characterized in that
The support includes the first support and the second support, and first support is equipped with first through hole, second support is equipped with
Second through-hole, the first through hole and second through-hole hole length having the same and aperture, and the Kong Changyu is to be detected
Each self-lubricating bush it is of same size；
The load plate is folded between first support and second support and can apply preset radial to the mandrel
Power, the load plate are equipped with third through-hole, the third through-hole and the first through hole and the second through-hole coaxial line, and described
Two times of the hole of a length of first through hole in the hole of third through-hole or second through-hole length；And
Four self-lubricating bush groups to be detected with identical structure snd size are separately positioned on institute with interference fit type
On the inner wall for stating first through hole, the second through-hole and third through-hole, the mandrel is threaded through the self-lubricating bush group to be detected
Inner hole in and with the self-lubricating bush group to be detected form clearance fit setting.
2. self-lubricating bush life tests fixture according to claim 1, which is characterized in that first support and
Two supports are in identical L-type configuration, and first support and the second support respectively include bottom plate and side plate, and the side plate is vertical
In the bottom plate.
3. self-lubricating bush life tests fixture according to claim 2, which is characterized in that the bottom plate is equipped with more
A symmetrically arranged mounting hole and a positioning groove, the positioning groove are located on the lower surface of the bottom plate.
4. self-lubricating bush life tests fixture according to claim 3, which is characterized in that the bottom plate and side plate one
It is body formed.
5. a kind of detection method using self-lubricating bush life tests fixture described in claim 1, which is characterized in that
S1, four self-lubricating bush groups to be detected are sequentially loaded into the first through hole to the first support, the third of load plate is led to
In second through-hole of hole and the second support, and measure the internal diameter initial value of self-lubricating bush group to be detected；
S2, the second through-hole that mandrel is passed through to the second support in order, the third through-hole of load plate and the first support first lead to
Hole；
S3, bottom plate is mounted on testing equipment base by mounting hole and positioning groove, by the diameter of load plate and testing equipment
It is connected to loading device, the larger diameter end of mandrel and the pendulous device of testing equipment connect；
S4, starting testing equipment, the radial loading device of testing equipment is by load plate to four self-lubricating bushes to be detected
Group applies an equal amount of preset radial load, with ± 15 ° of pivot angles and is preset by the oscillating oil cylinder band moving mandrel of pendulous device
Frequency reciprocally swinging measures inner diameter values after the abrasion of self-lubricating bush group to be detected after n times reciprocally swinging；
The difference of inner diameter values is bushing abrasion loss after S5, the internal diameter initial value of self-lubricating bush group to be detected and abrasion, works as bushing
Abrasion loss obtain qualified self-lubricating bush when should be less than 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811259796.7A CN109187018B (en) | 2018-10-26 | 2018-10-26 | Clamp for detecting service life of self-lubricating bushing and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811259796.7A CN109187018B (en) | 2018-10-26 | 2018-10-26 | Clamp for detecting service life of self-lubricating bushing and detection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109187018A true CN109187018A (en) | 2019-01-11 |
| CN109187018B CN109187018B (en) | 2023-08-18 |
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ID=64943895
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811259796.7A Active CN109187018B (en) | 2018-10-26 | 2018-10-26 | Clamp for detecting service life of self-lubricating bushing and detection method thereof |
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| CN (1) | CN109187018B (en) |
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| DD267313A1 (en) * | 1987-12-24 | 1989-04-26 | Harzer Werke Veb | METHOD AND DEVICE FOR AUTOMATICALLY TESTING THE INTERNAL MASS OF HOLLOWING CYLINDERS |
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| CN105277366A (en) * | 2015-11-04 | 2016-01-27 | 中国直升机设计研究所 | Self-lubricating joint bearing durability test method and test bench |
| US20160178505A1 (en) * | 2014-12-18 | 2016-06-23 | Nippon Thompson Co., Ltd. | Wear-proof tester for retainer in needle cage |
| CN107478443A (en) * | 2017-09-13 | 2017-12-15 | 湖南中联重科车桥有限公司 | The liner wear experimental rig and method of vehicle pendulum bearing |
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2018
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|---|---|---|---|---|
| DD267313A1 (en) * | 1987-12-24 | 1989-04-26 | Harzer Werke Veb | METHOD AND DEVICE FOR AUTOMATICALLY TESTING THE INTERNAL MASS OF HOLLOWING CYLINDERS |
| CN103162953A (en) * | 2013-02-27 | 2013-06-19 | 燕山大学 | Self-lubricating liner performance testing machine |
| CN104049627A (en) * | 2013-03-14 | 2014-09-17 | 费希尔控制国际公司 | Valve prognostics for polymeric components based on accelerated aging techniques |
| US20160178505A1 (en) * | 2014-12-18 | 2016-06-23 | Nippon Thompson Co., Ltd. | Wear-proof tester for retainer in needle cage |
| CN105277366A (en) * | 2015-11-04 | 2016-01-27 | 中国直升机设计研究所 | Self-lubricating joint bearing durability test method and test bench |
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| 孙稳;魏小辉;颜晓峰;房务官;: "自润滑关节轴承摩擦性能试验研究", 江苏航空, no. 04 * |
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|---|---|
| CN109187018B (en) | 2023-08-18 |
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