CN110633507A - Method and system for calculating relationship between axial clearance of self-lubricating joint bearing and abrasion loss of liner - Google Patents
Method and system for calculating relationship between axial clearance of self-lubricating joint bearing and abrasion loss of liner Download PDFInfo
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Abstract
The invention provides a method and a system for calculating the relationship between the axial clearance of a self-lubricating spherical plain bearing and the abrasion loss of a liner, wherein the self-lubricating spherical plain bearing comprises an inner ring, an outer ring and the liner, the outer ring, the liner and the inner ring are sequentially arranged from outside to inside, the inner surface of the outer ring is a spherical surface, the outer surface of the inner ring is a spherical surface, and the liner is bonded on the inner surface of the outer ring; the method for calculating the relationship between the axial clearance of the self-lubricating joint bearing and the abrasion loss of the liner comprises the following steps of: step 1: establishing a coordinate system in the self-lubricating joint bearing to obtain expressions of an inner ring spherical surface and an outer ring spherical surface; step 2: acquiring an expression of an outer ring spherical surface; and step 3: and acquiring the relation between the abrasion loss of the liner and the axial clearance of the bearing. According to the invention, under the conditions that the liner is an elastomer, the liner is uniformly worn and the like, a calculation formula of the relationship between the axial clearance and the liner wear amount is established, a theoretical reference is provided for determining the wear failure criterion of the self-lubricating knuckle bearing, and the method has important significance for mastering the wear state of the bearing and judging the service life of the bearing.
Description
Technical Field
The invention relates to the technical field of bearings, in particular to a method and a system for calculating the relationship between the axial clearance of a self-lubricating joint bearing and the abrasion amount of a liner, and particularly relates to a method and a system for calculating the relationship between the axial clearance of a fabric self-lubricating joint bearing and the abrasion amount of the liner.
Background
In the service process of the self-lubricating joint bearing, particularly in the service process of the fabric self-lubricating joint bearing, the self-lubricating liner is continuously worn and extruded, so that the bearing clearance is continuously increased, and the change of the bearing clearance directly reflects the wear state of the self-lubricating liner. The wear amount of the liner is an indirect measurement parameter in the use stage of the self-lubricating spherical plain bearing, and the self-lubricating spherical plain bearing generally reflects the wear amount value of the bearing according to the play value of the bearing, and the application of the axial play value is the most common. Therefore, establishing the corresponding relationship between the bearing clearance and the lining wear amount has important significance for grasping the bearing wear state and judging the service life of the bearing.
Patent document No. CN203335631U discloses a radial spherical plain bearing, which includes an outer ring and an inner ring, the outer ring is composed of two outer ring bodies axially arranged side by side, the outer cylindrical surfaces of the two outer ring bodies are respectively provided with threads, the two outer ring bodies are fixed on a bearing seat hole through threads, and an axial gap is provided between the two outer ring bodies. By adopting the structure, when the bearing is worn, the two outer ring bodies are screwed in the middle, so that the bearing play can be eliminated, and the bearing wear amount can be compensated. However, the scheme cannot accurately calculate the relationship between the bearing clearance and the bearing wear, and the use of the bearing is influenced by the fact that overcompensation or undercompensation is possibly caused by the fact that the outer ring is screwed in to compensate the bearing wear.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method and a system for calculating the relationship between the axial play of a self-lubricating joint bearing and the abrasion loss of a liner.
According to one aspect of the invention, a method for calculating the relationship between the axial clearance of a self-lubricating joint bearing and the abrasion loss of a liner is provided, wherein the self-lubricating joint bearing comprises an inner ring, an outer ring and the liner, the outer ring, the liner and the inner ring are sequentially arranged from outside to inside, the inner surface of the outer ring is a spherical surface, the outer surface of the inner ring is a spherical surface, and the liner is bonded on the inner surface of the outer ring; when the influence of installation and fixation on the bearing clearance value is not considered, the axial clearance value of the rod end self-lubricating joint bearing is determined by the axial clearance of the self-lubricating joint bearing; when the axial play test is set, the compression amount of the gasket under the action of the test load is zero; setting the compression amount of the gasket under the test load and the rebound amount after unloading to be zero in the abrasion test; the method for calculating the relationship between the axial clearance of the self-lubricating joint bearing and the abrasion loss of the liner comprises the following steps of:
step 1: establishing a coordinate system in the self-lubricating joint bearing to obtain expressions of an inner ring spherical surface and an outer ring spherical surface;
step 2: acquiring an expression of an outer ring spherical surface;
and step 3: and acquiring the relation between the abrasion loss of the liner and the axial clearance of the bearing.
Preferably, the step 1 specifically comprises:
establishing a rectangular coordinate system by taking the geometric center of the self-lubricating joint bearing as an original point, the normal direction of the end face of the self-lubricating joint bearing as an X axis and the radial direction of the self-lubricating joint bearing as a Y axis;
the inner diameter of the self-lubricating joint bearing is D, the outer diameter of the self-lubricating joint bearing is D, the width of the inner ring is B, the width of the outer ring is C, and the spherical diameter of the inner ring is DkThen, the expression of the inner circle spherical surface is:
preferably, the step 2 specifically comprises:
the spherical surface of the bearing inner ring is always in spherical contact with the surface of the liner, the bearing abrasion is uniform abrasion on the surface of the liner, and the initial axial clearance is zero; if the abrasion loss of the gasket is h, the spherical surface of the outer ring, namely the spherical surface of the gasket, has the following expression:
preferably, the step 3 specifically comprises:
with reference to standard SAE AS 81819, the distance from the end face of the outer ring is taken
At, i.e. from the Y-axis
The axial distance between the liner and the inner ring is used as the axial clearance delta x of the self-lubricating joint bearing and the distance Y axis
The point of the liner is positioned on the spherical surface of the outer ring, and the distance Y axis is arrangedThe coordinate of the point where the pad is located is (x)2,y2) Over (x)2,y2) The intersection point of the vertical line of the Y axis and the spherical surface of the inner ring is (x)1,y1) Then, then
Δx＝x2-x1 (3)。
Preferably, formula (1), formula (2) and
y2＝y1determining axial play
Preferably, the self-lubricating joint bearing is a liner type self-lubricating joint bearing, the liner is a self-lubricating liner, and the self-lubricating liner adopts any one or more of the following liners:
-a polytetrafluoroethylene composite liner;
-a copper mesh pad;
-a carbon fibre composite pad.
According to another aspect of the invention, a system for calculating the relationship between the axial clearance of a self-lubricating spherical plain bearing and the abrasion loss of a liner is provided, wherein the self-lubricating spherical plain bearing comprises an inner ring, an outer ring and a liner, the outer ring, the liner and the inner ring are sequentially arranged from outside to inside, the inner surface of the outer ring is a spherical surface, the outer surface of the inner ring is a spherical surface, and the liner is bonded on the inner surface of the outer ring; when the influence of installation and fixation on the bearing clearance value is not considered, the axial clearance value of the rod end self-lubricating joint bearing is determined by the axial clearance of the self-lubricating joint bearing; when the axial play test is set, the compression amount of the gasket under the action of the test load is zero; setting the compression amount of the gasket under the test load and the rebound amount after unloading to be zero in the abrasion test; the system for calculating the relationship between the axial clearance of the self-lubricating joint bearing and the abrasion loss of the liner comprises the following modules:
an inner circle spherical surface expression obtaining module: establishing a coordinate system in the self-lubricating joint bearing to obtain an expression of an inner ring spherical surface;
an outer ring spherical surface expression obtaining module: establishing a coordinate system in the self-lubricating joint bearing to obtain an expression of an outer ring spherical surface;
the liner abrasion loss and bearing axial clearance relation obtaining module comprises: and acquiring the relation between the abrasion loss of the liner and the axial clearance of the bearing.
Preferably, the inner ring spherical expression obtaining module and the outer ring spherical expression obtaining module both use the geometric center of the self-lubricating joint bearing as an origin, use the normal direction of the end face of the self-lubricating joint bearing as an X axis, and use the radial direction of the self-lubricating joint bearing as a Y axis to establish a rectangular coordinate system;
the inner diameter of the self-lubricating joint bearing is D, the outer diameter of the self-lubricating joint bearing is D, the width of the inner ring is B, the width of the outer ring is C, and the spherical diameter of the inner ring is DkThen, the expression of the inner circle spherical surface is:
the spherical surface of the bearing inner ring is always in spherical contact with the surface of the liner, the bearing abrasion is uniform abrasion on the surface of the liner, and the initial axial clearance is zero; if the abrasion loss of the gasket is h, the spherical surface of the outer ring, namely the spherical surface of the gasket, has the following expression:
preferably, the module for acquiring the relationship between the abrasion loss of the liner and the axial play of the bearing is referenced to standard SAE AS 81819 and is spaced from the end face of the outer ring
At, i.e. from the Y-axis
The axial distance between the liner and the inner ring is used as the axial clearance delta x of the self-lubricating joint bearing and the distance Y axis
The point of the liner is positioned on the spherical surface of the outer ring, and the distance Y axis is arranged
The coordinate of the point where the pad is located is (x)2,y2) Over (x)2,y2) The intersection point of the vertical line of the Y axis and the spherical surface of the inner ring is (x)1,y1) Then, then
Δx＝x2-x1 (3)。
Preferably, the liner abrasion amount and bearing axial play relation acquisition module combines formula (1), formula (2) and
y2＝y1determining axial play
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, under the conditions that the liner is an elastomer, the liner is uniformly worn and the like, a calculation formula of the relationship between the axial clearance and the liner wear amount is established, a theoretical reference is provided for determining the wear failure criterion of the self-lubricating knuckle bearing, and the method has important significance for mastering the wear state of the bearing and judging the service life of the bearing.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural view of a self-lubricating spherical plain bearing.
Fig. 2 is a schematic sectional structure view of the self-lubricating spherical plain bearing.
Fig. 3 is a schematic view of axial displacement of the self-lubricating spherical plain bearing, i.e., a schematic view of axial play calculation.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
According to the method for calculating the relationship between the axial clearance of the self-lubricating spherical plain bearing and the abrasion loss of the liner, the self-lubricating spherical plain bearing comprises an inner ring, an outer ring and the liner, wherein the outer ring, the liner and the inner ring are sequentially arranged from outside to inside; when the influence of installation and fixation on the bearing clearance value is not considered, the axial clearance value of the rod end self-lubricating joint bearing is determined by the axial clearance of the self-lubricating joint bearing; when the axial play test is set, the compression amount of the gasket under the action of the test load is zero; setting the compression amount of the gasket under the test load and the rebound amount after unloading to be zero in the abrasion test; the method for calculating the relationship between the axial clearance of the self-lubricating joint bearing and the abrasion loss of the liner comprises the following steps of:
step 1: establishing a coordinate system in the self-lubricating joint bearing to obtain expressions of an inner ring spherical surface and an outer ring spherical surface;
step 2: acquiring an expression of an outer ring spherical surface;
and step 3: and acquiring the relation between the abrasion loss of the liner and the axial clearance of the bearing.
The step 1 specifically comprises the following steps:
establishing a rectangular coordinate system by taking the geometric center of the self-lubricating joint bearing as an original point, the normal direction of the end face of the self-lubricating joint bearing as an X axis and the radial direction of the self-lubricating joint bearing as a Y axis;
the inner diameter of the self-lubricating joint bearing is D, the outer diameter of the self-lubricating joint bearing is D, the width of the inner ring is B, the width of the outer ring is C, and the spherical diameter of the inner ring is DkThen, the expression of the inner circle spherical surface is:
the step 2 specifically comprises the following steps:
the spherical surface of the bearing inner ring is always in spherical contact with the surface of the liner, the bearing abrasion is uniform abrasion on the surface of the liner, and the initial axial clearance is zero; if the abrasion loss of the gasket is h, the spherical surface of the outer ring, namely the spherical surface of the gasket, has the following expression:
the step 3 specifically comprises the following steps:
with reference to standard SAE AS 81819, the distance from the end face of the outer ring is taken
At, i.e. from the Y-axis
The axial distance between the liner and the inner ring is used as the axial clearance delta x of the self-lubricating joint bearing and the distance Y axisThe point of the liner is positioned on the spherical surface of the outer ring, and the distance Y axis is arrangedThe coordinate of the point where the pad is located is (x)2,y2) Over (x)2,y2) The intersection point of the vertical line of the Y axis and the spherical surface of the inner ring is (x)1,y1) Then, then
Δx＝x2-x1 (3)。
Simultaneous formulas (1), (2) and
y2＝y1determining axial play
Preferably, the self-lubricating joint bearing is a liner type self-lubricating joint bearing, the liner is a self-lubricating liner, and the self-lubricating liner adopts any one or more of the following liners:
-a polytetrafluoroethylene composite liner;
-a copper mesh pad;
-a carbon fibre composite pad.
According to the system for calculating the relationship between the axial clearance of the self-lubricating spherical plain bearing and the abrasion loss of the liner, the self-lubricating spherical plain bearing comprises an inner ring, an outer ring and the liner, wherein the outer ring, the liner and the inner ring are sequentially arranged from outside to inside; when the influence of installation and fixation on the bearing clearance value is not considered, the axial clearance value of the rod end self-lubricating joint bearing is determined by the axial clearance of the self-lubricating joint bearing; when the axial play test is set, the compression amount of the gasket under the action of the test load is zero; setting the compression amount of the gasket under the test load and the rebound amount after unloading to be zero in the abrasion test; the system for calculating the relationship between the axial clearance of the self-lubricating joint bearing and the abrasion loss of the liner comprises the following modules:
an inner circle spherical surface expression obtaining module: establishing a coordinate system in the self-lubricating joint bearing to obtain an expression of an inner ring spherical surface;
an outer ring spherical surface expression obtaining module: establishing a coordinate system in the self-lubricating joint bearing to obtain an expression of an outer ring spherical surface;
the liner abrasion loss and bearing axial clearance relation obtaining module comprises: and acquiring the relation between the abrasion loss of the liner and the axial clearance of the bearing.
The inner ring spherical surface expression acquisition module and the outer ring spherical surface expression acquisition module both use the geometric center of the self-lubricating joint bearing as an original point, use the normal direction of the end surface of the self-lubricating joint bearing as an X axis and use the radial direction of the self-lubricating joint bearing as a Y axis to establish a rectangular coordinate system;
the inner diameter of the self-lubricating joint bearing is D, the outer diameter of the self-lubricating joint bearing is D, the width of the inner ring is B, the width of the outer ring is C, and the spherical diameter of the inner ring is DkThen, the expression of the inner circle spherical surface is:
the spherical surface of the bearing inner ring is always in spherical contact with the surface of the liner, the bearing abrasion is uniform abrasion on the surface of the liner, and the initial axial clearance is zero; if the abrasion loss of the gasket is h, the spherical surface of the outer ring, namely the spherical surface of the gasket, has the following expression:
the relation between the abrasion loss of the liner and the axial play of the bearing is obtained by a module reference standard SAE AS 81819, and the distance between the liner and the end face of the outer ring is taken
At, i.e. from the Y-axisThe axial distance between the liner and the inner ring is used as the axial clearance delta x of the self-lubricating joint bearing and the distance Y axis
The point of the liner is positioned on the spherical surface of the outer ring, and the distance Y axis is arranged
The coordinate of the point where the pad is located is (x)2,y2) Over (x)2,y2) The intersection point of the vertical line of the Y axis and the spherical surface of the inner ring is (x)1,y1) Then, then
Δx＝x2-x1 (3)。
The liner abrasion loss and bearing axial clearance relation acquisition module has simultaneous formula (1), formula (2) and
y2＝y1determining axial play
Example (b):
in the present embodiment, the relationship between the bearing axial play and the amount of pad wear was examined by taking the self-lubricating spherical plain bearing SA16 as an example. The axial play of the rod end self-lubricating spherical plain bearing SA16 is determined by the built-in self-lubricating spherical plain bearing GEK 16.
Bearing GEK16 includes bearing outer race, bearing inner race and self-lubricating liner. The bearing outer ring and the bearing inner ring are both made of steel, titanium alloy, aluminum alloy or other metal materials, the self-lubricating liner is woven by self-lubricating materials such as polytetrafluoroethylene, and the average thickness of the self-lubricating liner is 0.38 mm. Bearing dimensions and failure criteria are shown in table 1.
TABLE 1 GEK16 self-lubricating spherical plain bearing information
Substituting the bearing dimension parameter information of the self-lubricating joint bearing GEK16 into the formula (4):
the relationship between the axial play of the GEK16 bearing and the abrasion loss of the gasket is obtained as follows:
when Δ x is 0.25mm, h is 0.0814mm, substituting equation (5).
h is 0.0814mm < 0.20mm, which shows that the requirement of SAE AS 81819 on the abrasion amount range of the liner is met;
h 0.0814mm < 0.38mm + -0.02 indicates that the liner is not worn through;
namely, when the axial play is less than or equal to 0.25mm, the liner is not worn out and meets the requirement of SAE AS 81819 on the range of the abrasion amount of the liner. The formula (4) is reasonable, and can be used for calculating the liner abrasion magnitude under different bearing axial clearances.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A method for calculating the relationship between the axial clearance of a self-lubricating joint bearing and the abrasion loss of a liner is characterized in that the self-lubricating joint bearing comprises an inner ring, an outer ring and a liner, wherein the outer ring, the liner and the inner ring are sequentially arranged from outside to inside, the inner surface of the outer ring is a spherical surface, the outer surface of the inner ring is a spherical surface, and the liner is bonded on the inner surface of the outer ring; when the influence of installation and fixation on the bearing clearance value is not considered, the axial clearance value of the rod end self-lubricating joint bearing is determined by the axial clearance of the self-lubricating joint bearing; when the axial play test is set, the compression amount of the gasket under the action of the test load is zero; setting the compression amount of the gasket under the test load and the rebound amount after unloading to be zero in the abrasion test; the method for calculating the relationship between the axial clearance of the self-lubricating joint bearing and the abrasion loss of the liner comprises the following steps of:
step 1: establishing a coordinate system in the self-lubricating joint bearing to obtain an expression of an inner ring spherical surface;
step 2: acquiring an expression of an outer ring spherical surface;
and step 3: and acquiring the relation between the abrasion loss of the liner and the axial clearance of the bearing.
2. The method for calculating the relationship between the axial play of the self-lubricating spherical plain bearing and the wear amount of the pad according to claim 1, wherein the step 1 is specifically as follows:
establishing a rectangular coordinate system by taking the geometric center of the self-lubricating joint bearing as an original point, the normal direction of the end face of the self-lubricating joint bearing as an X axis and the radial direction of the self-lubricating joint bearing as a Y axis;
the inner diameter of the self-lubricating joint bearing is D, the outer diameter of the self-lubricating joint bearing is D, the width of the inner ring is B, the width of the outer ring is C, and the spherical diameter of the inner ring is DkThen, the expression of the inner circle spherical surface is:
3. the method for calculating the relationship between the axial play of the self-lubricating spherical plain bearing and the wear amount of the pad according to claim 2, wherein the step 2 is specifically:
the spherical surface of the bearing inner ring is always in spherical contact with the surface of the liner, the bearing abrasion is uniform abrasion on the surface of the liner, and the initial axial clearance is zero; if the abrasion loss of the gasket is h, the spherical surface of the outer ring, namely the spherical surface of the gasket, has the following expression:
4. the method for calculating the relationship between the axial play of the self-lubricating spherical plain bearing and the wear amount of the pad according to claim 3, wherein the step 3 is specifically:
with reference to standard SAE AS 81819, the distance from the end face of the outer ring is taken
At, i.e. from the Y-axis
The axial distance between the liner and the inner ring is used as the axial clearance delta x of the self-lubricating joint bearing and the distance Y axis
The point of the liner is positioned on the spherical surface of the outer ring, and the distance Y axis is arranged
The coordinate of the point where the pad is located is (x)2,y2) Over (x)2,y2) The intersection point of the vertical line of the Y axis and the spherical surface of the inner ring is (x)1,y1) Then, then
Δx＝x2-x1 (3)。
5. The method of calculating the relationship between the axial play of the self-lubricating spherical plain bearing and the amount of wear of the pad according to claim 4, wherein the formula (1), the formula (2), and the formula (2) are combined
y2＝y1Determining axial play
6. The method for calculating the relationship between the axial play of the self-lubricating spherical plain bearing and the wear amount of the liner according to claim 1, wherein the self-lubricating spherical plain bearing is a liner-type self-lubricating spherical plain bearing, the liner is a self-lubricating liner, and the self-lubricating liner is any one or more of the following liners:
-a polytetrafluoroethylene composite liner;
-a copper mesh pad;
-a carbon fibre composite pad.
7. A system for calculating the relationship between the axial clearance of a self-lubricating joint bearing and the abrasion loss of a liner is characterized in that the self-lubricating joint bearing comprises an inner ring, an outer ring and the liner, wherein the outer ring, the liner and the inner ring are sequentially arranged from outside to inside; when the influence of installation and fixation on the bearing clearance value is not considered, the axial clearance value of the rod end self-lubricating joint bearing is determined by the axial clearance of the self-lubricating joint bearing; when the axial play test is set, the compression amount of the gasket under the action of the test load is zero; setting the compression amount of the gasket under the test load and the rebound amount after unloading to be zero in the abrasion test; the system for calculating the relationship between the axial clearance of the self-lubricating joint bearing and the abrasion loss of the liner comprises the following modules:
an inner circle spherical surface expression obtaining module: establishing a coordinate system in the self-lubricating joint bearing to obtain an expression of an inner ring spherical surface;
an outer ring spherical surface expression obtaining module: establishing a coordinate system in the self-lubricating joint bearing to obtain an expression of an outer ring spherical surface;
the liner abrasion loss and bearing axial clearance relation obtaining module comprises: and acquiring the relation between the abrasion loss of the liner and the axial clearance of the bearing.
8. The system for calculating the relationship between the axial play of the self-lubricating spherical bearing and the wear amount of the pad according to claim 7, wherein the inner ring spherical expression obtaining module and the outer ring spherical expression obtaining module both establish a rectangular coordinate system with the geometric center of the self-lubricating spherical bearing as an origin, the end surface normal direction of the self-lubricating spherical bearing as an X axis, and the radial direction of the self-lubricating spherical bearing as a Y axis;
self-lubricating deviceThe inner diameter of the joint bearing is D, the outer diameter is D, the width of the inner ring is B, the width of the outer ring is C, and the sphere diameter of the inner ring is DkThen, the expression of the inner circle spherical surface is:
the spherical surface of the bearing inner ring is always in spherical contact with the surface of the liner, the bearing abrasion is uniform abrasion on the surface of the liner, and the initial axial clearance is zero; if the abrasion loss of the gasket is h, the spherical surface of the outer ring, namely the spherical surface of the gasket, has the following expression:
9. the system for calculating the relationship between the axial play of a self-lubricating spherical plain bearing and the wear amount of a pad according to claim 7, wherein the module for obtaining the relationship between the wear amount of a pad and the axial play of a bearing is set at a distance from the end face of the outer ring with reference to SAE AS 81819At, i.e. from the Y-axis
The axial distance between the liner and the inner ring is used as the axial clearance delta x of the self-lubricating joint bearing and the distance Y axis
The point of the liner is positioned on the spherical surface of the outer ring, and the distance Y axis is arranged
The coordinate of the point where the pad is located is (x)2,y2) Over (x)2,y2) The intersection point of the vertical line of the Y axis and the spherical surface of the inner ring is (x)1,y1) Then, then
Δx＝x2-x1 (3)。
10. The system for calculating the relationship between the axial play of a self-lubricating spherical plain bearing and the amount of wear of a pad according to claim 9, wherein the means for obtaining the relationship between the amount of wear of a pad and the amount of axial play of a bearing combines the equations (1), (2) and (2)
y2＝y1Determining axial play
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113048889A (en) * | 2021-03-12 | 2021-06-29 | 厦门大学 | Mechanism, device and method for monitoring abrasion loss of self-lubricating gasket of joint bearing |
| CN114992237A (en) * | 2022-05-07 | 2022-09-02 | 上海市轴承技术研究所有限公司 | Self-lubricating rod end joint bearing and method for calculating instantaneous speed included angle at spherical common point of self-lubricating rod end joint bearing |
| CN111914418B (en) * | 2020-07-31 | 2023-08-25 | 三峡大学 | Method for measuring abrasion loss of large spherical bearing based on porous indentation method |
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| CN113048889A (en) * | 2021-03-12 | 2021-06-29 | 厦门大学 | Mechanism, device and method for monitoring abrasion loss of self-lubricating gasket of joint bearing |
| CN113048889B (en) * | 2021-03-12 | 2021-12-07 | 厦门大学 | Mechanism, device and method for monitoring abrasion loss of self-lubricating gasket of joint bearing |
| CN114992237A (en) * | 2022-05-07 | 2022-09-02 | 上海市轴承技术研究所有限公司 | Self-lubricating rod end joint bearing and method for calculating instantaneous speed included angle at spherical common point of self-lubricating rod end joint bearing |
| CN114992237B (en) * | 2022-05-07 | 2024-03-22 | 上海市轴承技术研究所有限公司 | Self-lubricating rod end joint bearing and method for calculating instantaneous speed included angle at spherical co-point position thereof |
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