CN220789407U - Long-life metal friction pair structure - Google Patents
Long-life metal friction pair structure Download PDFInfo
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- CN220789407U CN220789407U CN202322047188.2U CN202322047188U CN220789407U CN 220789407 U CN220789407 U CN 220789407U CN 202322047188 U CN202322047188 U CN 202322047188U CN 220789407 U CN220789407 U CN 220789407U
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 204
- 239000002184 metal Substances 0.000 title claims abstract description 204
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 104
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 101
- 239000010439 graphite Substances 0.000 claims abstract description 101
- 229920001971 elastomer Polymers 0.000 claims abstract description 21
- 239000000945 filler Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 30
- 239000007769 metal material Substances 0.000 claims description 15
- 239000000806 elastomer Substances 0.000 claims description 13
- 239000010935 stainless steel Substances 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 239000011247 coating layer Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000001050 lubricating effect Effects 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model discloses a long-life metal friction pair structure, which comprises a first metal plate and a second metal plate which are combined together by relative friction movement; a friction pair is formed between the abutting surfaces of the first metal plate and the second metal plate; and a plurality of graphite fillers are filled in the friction surface of the first metal plate or the second metal plate in a dispersing way. The metal plates which are matched with relative displacement are directly combined together in a relative friction movement mode, friction pairs are directly formed on the joint surfaces of the metal plates, and an easily-aged rubber material is removed; meanwhile, graphite fillers are arranged on the single-side friction surface of the metal friction pair to realize reliable antifriction, so that the coefficient of friction movement is reliably reduced; the formed metal friction pair has the technical characteristics of high wear resistance, aging resistance, long service life and the like.
Description
Technical Field
The utility model relates to a friction pair structure formed by two objects which are in direct contact and generate relative friction motion, in particular to a long-service-life friction pair structure between metal plates, which is particularly suitable for support forming of building facilities such as bridge engineering and rail traffic engineering.
Background
Bridge engineering, rail traffic engineering and the like belong to high-load and long-service-life building facilities, in such structures, in order to adapt to load changes and expansion and contraction changes between opposite structural members, certain translational or rotational fine adjustment needs to be generated between the opposite structural members, and therefore a friction pair which enables the two structural members to be in contact and generate relative friction movement is arranged between the two structural members. For example, a support in bridge engineering, that is, a friction pair is formed between an upper support plate and an intermediate plate and between the intermediate plate and a lower support plate; for another example, an adjustable high-seismic support in rail traffic engineering forms friction pairs between an upper plate assembly and a middle plate assembly and between the middle plate assembly and a lower plate assembly; for another example, a transverse position-adjusting and height-adjusting support in magnetic suspension rail traffic engineering forms friction pairs between the middle seat plate and the height-adjusting plate, between the height-adjusting plate and the lower seat plate, and the like.
The friction pair is formed between metal plates which are arranged in a moving manner by the upper phase and the lower phase, and in order to improve antifriction performance, the metal plates which are arranged in a moving manner by the upper phase and the lower phase are in indirect contact friction, and the friction pair is formed by transition of a rubber material in the middle, for example, the technology of a full-service bridge basin-type ball steel support disclosed in China patent literature (publication No. CN 105672123A, publication No. 2016, no. 06, 15), a friction pendulum force basin-type rubber support (publication No. CN218540375U, publication No. 2023, no. 02, 28), a sliding plate support (publication No. CN110656704A, publication No. 2020, no. 01, 07) and the like is disclosed. In such techniques, the metallic materials of the relatively displaced structural members do not directly contact the frictional movement, but rather form a relative frictional movement through the transition of the intermediate polymeric rubber material.
The friction pair formed by the high polymer rubber material has good antifriction performance, but due to the technical characteristics of easy aging, lower abrasion resistance and the like of the high polymer rubber material, the service life of the formed friction pair structure is lower, the friction pair is difficult to adapt to the whole service life of building facilities such as bridge engineering, rail traffic engineering and the like, the friction pair needs to be regularly maintained and replaced, and the maintenance cost of the building facilities is increased.
Disclosure of Invention
The technical purpose of the utility model is that: aiming at the particularity of the metal friction pair and the defects of the prior art, the metal friction pair structure with good antifriction performance, ageing resistance, good wear resistance and reliable realization of long service life is provided.
The technical aim of the utility model is achieved by the following technical scheme that the long-life metal friction pair structure comprises a first metal plate and a second metal plate which are combined together by relative friction movement;
a friction pair is formed between the abutting surfaces of the first metal plate and the second metal plate;
and a plurality of graphite fillers are filled in the friction surface of the first metal plate or the second metal plate in a dispersing way.
The technical measures are aimed at the specificity of the metal friction pair, the metal plates matched with relative displacement are directly combined together in a relative friction movement mode, the friction pair is directly formed on the abutting surface (namely the joint surface) of the metal plates, and the rubber material easy to age is removed. Meanwhile, graphite fillers are arranged on one side of the metal friction pair to realize reliable antifriction, so that the coefficient of friction motion is reliably reduced. That is, the graphite filling blocks arranged on one side are used for improving the antifriction performance of relative friction movement between metal plates, so that the friction pair between the metal plates is ensured to be stably maintained, and the formed metal friction pair has the technical characteristics of high antifriction, aging resistance, long service life and the like due to the antifriction and aging resistance of the graphite material.
As one of the preferable schemes, the graphite filling blocks are filled in the graphite filling cavities of the corresponding concave cavity structures of the corresponding friction surfaces in an embedded mode;
and a compressible elastomer is filled between the root of the graphite filling block and the cavity bottom of the corresponding graphite filling cavity.
According to the technical measures, the graphite filling blocks are filled in the corresponding cavities in an elastic structure, and under the action of the elastic force of the elastic body, the graphite filling blocks are pushed outwards, so that the graphite filling blocks can be reliably contacted and matched with the opposite friction surfaces, the abrasion consumption of the graphite filling blocks in the friction pair is adapted, the consumed graphite filling blocks can be ensured to antifriction and lubricate the friction pair in a long-acting and reliable manner, and the service life is further reliably ensured.
Further, the elastic body is a disc spring structure or a spiral spring structure made of metal materials. The elastomer with the technical measure has the characteristics of ageing resistance and long service life, and is beneficial to prolonging the service life of the formed metal friction pair.
Further, the graphite filling block is filled in the graphite filling cavity above the elastomer in a micro-clearance fit structure. The technical measures basically eliminate the friction resistance between the graphite filling block and the graphite filling cavity where the graphite filling block is positioned, on one hand, the graphite filling block is convenient to be embedded in the graphite filling cavity, and on the other hand, the graphite filling block under the elastic action of the elastomer can be reliably pushed outwards, so that long-acting and reliable contact fit between the graphite filling block and the opposite friction surface is ensured.
Further, the graphite filling block is of a cylindrical structure. The technical measure is easy to mold and assemble the graphite filling block, is also beneficial to guaranteeing the stable abrasion consumption of the graphite filling block and prolonging the abrasion consumption life.
As one of preferable schemes, the friction surface hardness of the graphite filling blocks is smaller than that of the non-graphite filling blocks. The technical measure is to differentially mold the opposite friction surfaces of the metal friction pair by specific metal materials with different hardness, so as to ensure that the friction surface of the non-graphite-containing filling block stably moves relative to the friction surface of the graphite-containing filling block, thereby ensuring the reliable and long-acting molding of the metal friction pair.
Further, the friction surface of the non-graphite-containing filler is formed on the base plate in a stainless steel lining layer structure or an alloy coating structure. The technical measure avoids the integral upgrading of the material of the structural member while improving the wear resistance of the friction surface of the non-graphite-containing filling block, and is beneficial to controlling the forming cost.
As one of the preferable schemes, the periphery of the friction surface where the graphite filling blocks are positioned is provided with a sealing structure which surrounds all the graphite filling blocks. The technical measure forms leakage prevention and aggregation prevention for graphite powder generated by abrasion of the metal friction pair, so that a layer of lubricating film is formed at the metal friction pair by the graphite powder, the durable forming of the metal friction pair is ensured, and the abrasion consumption of a graphite filling block is inhibited.
Further, the sealing structure is a metal sealing strip embedded in the friction surface of any side of the first metal plate or the second metal plate;
the hardness of the metal sealing strip is smaller than that of the relative motion friction surface.
The sealing structure of the technical measure has the characteristic of ageing resistance and long service life, is beneficial to improving the service life of the metal friction pair, and can reach the service life of the corresponding building facilities as far as possible.
As one of the preferable schemes, the first metal plate and the second metal plate are arranged in an up-down mode to form relative friction movement, and the second metal plate is arranged at the bottom side of the first metal plate;
the graphite filling block is formed on the top surface of the second metal plate, and is in relative friction movement with the bottom surface of the first metal plate and is lubricated.
The technical measures are beneficial to the stable assembly and forming of the graphite filling blocks and the upper and lower assembly between the first metal plate and the second metal plate which move relatively in a friction manner.
The beneficial technical effects of the utility model are as follows: the technical measures aim at the particularity of the metal friction pair, the metal plates matched with relative displacement are directly combined together in a relative friction movement mode, the friction pair is directly formed on the joint surface of the metal plates, and the rubber material easy to age is removed. Meanwhile, graphite fillers are arranged on the single-side friction surface of the metal friction pair to realize reliable antifriction, so that the coefficient of friction movement is reliably reduced. That is, the graphite filling blocks arranged on one side are used for improving the antifriction performance of relative friction movement between metal plates, so that the friction pair between the metal plates is ensured to be stably maintained, and the formed metal friction pair has the technical characteristics of high antifriction, aging resistance, long service life and the like due to the antifriction and aging resistance of the graphite material.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a plan view of the second metal plate in fig. 1.
Fig. 3 is a schematic view of another structure of the present utility model.
Fig. 4 is a top view of the second metal plate in fig. 3.
Fig. 5 is a reference diagram of an application state of the present utility model in a bridge ball-type bearing.
The meaning of the symbols in the figures: 1-a first metal plate; 2-a second metal plate; 21-graphite filling cavity; 22-graphite filling; 23-an elastomer; 3-a metal sealing strip; a is a support upper plate; b-an intermediate plate; c is a lower plate of the support.
Detailed Description
The utility model relates to a friction pair structure formed by two objects which are in direct contact and generate relative friction motion, in particular to a long-service-life friction pair structure between metal plates, which is particularly suitable for support forming of building facilities such as bridge engineering and rail traffic engineering, and the technical content of the utility model is described in detail by a plurality of embodiments. Wherein, embodiment 1 is combined with the attached drawings of the specification, namely, fig. 1, fig. 2 and fig. 5 to clearly and specifically explain the technical scheme of the utility model; example 2 the technical solution of the present utility model will be clearly and specifically explained with reference to the accompanying drawings in the specification, namely, fig. 3, fig. 4 and fig. 5; other embodiments, although not drawn separately, refer to the drawings of embodiments 1 or 2 for their main structures.
It is to be noted here in particular that the figures of the utility model are schematic, which for the sake of clarity have simplified unnecessary details in order to avoid obscuring the technical solutions of the utility model which contribute to the state of the art.
Example 1
Referring to fig. 1 and 2, the utility model comprises a first metal plate 1 and a second metal plate 2 which are arranged in an up-down mode, wherein the first metal plate 1 directly forms a group of friction pairs for relative friction movement between metal materials through a bottom surface and a top surface of the second metal plate 2.
Specifically, on the top surface of the second metal plate 2, a plurality of graphite filling cavities 21 are arranged in a concave cavity structure, and the plane contour of each graphite filling cavity 21 is circular. The graphite filling cavities 21 are regularly arranged in a rectangular array on the top surface of the second metal plate 2, and adjacent rows/columns are arranged in a staggered manner. The bottom of each graphite filling cavity 21 is provided with an elastomer 23, a metal disc spring structure, and a cylindrical graphite filling block 22 is filled in the graphite filling cavity 21 above the disc spring in a micro-clearance fit structure, that is, a compressible elastomer 23 is filled between the root of the graphite filling block 22 and the bottom of the corresponding graphite filling cavity 21. On the premise of not being assembled with the first metal plate 1, the graphite filling block 22 in a free state is pushed by the elastic body 23 to protrude out of the top surface of the second metal plate 2.
The first metal plate 1 is a stainless steel lining plate layer fixedly connected to the base plate, and the bottom surface of the stainless steel lining plate layer is of a basically flat mirror surface structure. If the bottom surface of the first metal plate is in a spherical crown surface structure, the mirror surface structure layer can be formed by adopting a chromium plating alloy layer.
When the first metal plate 1 is located on the top surface of the second metal plate 2 through the bottom surface, the bottom surface of the first metal plate 1 is in contact fit with the graphite filling block 22 on the top surface of the second metal plate 2, friction pairs between the first metal plate 1 and the second metal plate 2 are antifriction and lubricated through the graphite filling block 22, stable, long-acting and reliable friction pairs are ensured, and the hardness of the first metal plate 1 is higher than that of the second metal plate 2.
Referring to fig. 5, the metal friction pair structure of the utility model is applied to bridge supports. The bridge support comprises an upper support plate A, a middle plate B and a lower support plate C which are arranged in an up-down mode.
In bridge engineering, a support upper plate A is connected to the bottom of a beam body through a connected upper anchor bolt. The support lower plate C is connected to the top of the buttress through a connected lower anchoring bolt. The middle plate B is of a spherical crown plate structure, the middle plate B of the spherical crown plate structure is arranged between the support upper plate A and the support lower plate C, the middle plate B directly forms a group of sliding friction pairs for relative friction movement between metal materials through a top side plane and a bottom side plane of the support upper plate A, and the middle plate B directly forms a group of rotating friction pairs for relative friction movement between metal materials through a bottom side spherical crown plane and a top side concave curved surface of the support lower plate C.
In the sliding friction pair, the support upper plate A is a first metal plate 1 of the metal friction pair, and the middle plate B is a second metal plate 2 of the metal friction pair.
In the rotary friction pair, the middle plate B is a first metal plate 1 of the metal friction pair, and the support lower plate C is a second metal plate 2 of the metal friction pair. Since the bottom spherical crown surface of the intermediate plate 2 is not easily molded with a stainless steel backing plate layer, it is possible to mold with a chromium-plated alloy layer so that the hardness is greater than that of the top curved surface of the lower plate C of the support.
Example 2
Referring to fig. 3 and 4, the utility model comprises a first metal plate 1 and a second metal plate 2 which are arranged in an up-down mode, wherein the first metal plate 1 directly forms a group of friction pairs for relative friction movement between metal materials through a bottom surface and a top surface of the second metal plate 2.
Specifically, on the top surface of the second metal plate 2, a plurality of graphite filling cavities 21 are arranged in a concave cavity structure, and the plane contour of each graphite filling cavity 21 is circular. The graphite filling cavities 21 are regularly arranged in a rectangular array on the top surface of the second metal plate 2, and adjacent rows/columns are arranged in a staggered manner. The bottom of each graphite filling cavity 21 is provided with an elastomer 23, a metal disc spring structure, and a cylindrical graphite filling block 22 is filled in the graphite filling cavity 21 above the disc spring in a micro-clearance fit structure, that is, a compressible elastomer 23 is filled between the root of the graphite filling block 22 and the bottom of the corresponding graphite filling cavity 21. On the premise of not being assembled with the first metal plate 1, the graphite filling block 22 in a free state is pushed by the elastic body 23 to protrude out of the top surface of the second metal plate 2.
The first metal plate 1 is a stainless steel lining plate layer fixedly connected to the base plate, and the bottom surface of the stainless steel lining plate layer is of a basically flat mirror surface structure. If the bottom surface of the first metal plate is in a spherical crown surface structure, the mirror surface structure layer can be formed by adopting a chromium plating alloy layer.
When the first metal plate 1 is located on the top surface of the second metal plate 2 through the bottom surface, the bottom surface of the first metal plate 1 is in contact fit with the graphite filling block 22 on the top surface of the second metal plate 2, friction pairs between the first metal plate 1 and the second metal plate 2 are antifriction and lubricated through the graphite filling block 22, stable, long-acting and reliable friction pairs are ensured, and the hardness of the first metal plate 1 is higher than that of the second metal plate 2.
In order to reduce the leakage of graphite powder and reliably ensure the forming of a lubricating film, a sealing groove is formed on the periphery of the top surface of the second metal plate 2 in a concave structure, and the contour track of the sealing groove surrounds all graphite filling blocks 22 on the top surface of the second metal plate 2. The sealing groove of the second metal plate 2 is embedded with a metal sealing strip 3, the hardness of the metal sealing strip 3 is smaller than that of the first metal plate 1, and the metal sealing strip 3 is slightly protruded from the top surface of the second metal plate 2.
Referring to fig. 5, the metal friction pair structure of the utility model is applied to bridge supports. The bridge support comprises an upper support plate A, a middle plate B and a lower support plate C which are arranged in an up-down mode.
In bridge engineering, a support upper plate A is connected to the bottom of a beam body through a connected upper anchor bolt. The support lower plate C is connected to the top of the buttress through a connected lower anchoring bolt. The middle plate B is of a spherical crown plate structure, the middle plate B of the spherical crown plate structure is arranged between the support upper plate A and the support lower plate C, the middle plate B directly forms a group of sliding friction pairs for relative friction movement between metal materials through a top side plane and a bottom side plane of the support upper plate A, and the middle plate B directly forms a group of rotating friction pairs for relative friction movement between metal materials through a bottom side spherical crown plane and a top side concave curved surface of the support lower plate C.
In the sliding friction pair, the support upper plate A is a first metal plate 1 of the metal friction pair, and the middle plate B is a second metal plate 2 of the metal friction pair.
In the rotary friction pair, the middle plate B is a first metal plate 1 of the metal friction pair, and the support lower plate C is a second metal plate 2 of the metal friction pair. Since the bottom spherical crown surface of the intermediate plate 2 is not easily molded with a stainless steel backing plate layer, it is possible to mold with a chromium-plated alloy layer so that the hardness is greater than that of the top curved surface of the lower plate C of the support.
Example 3
The utility model comprises a first metal plate and a second metal plate which are arranged left and right, wherein the first metal plate directly forms a group of friction pairs for relative friction movement between metal materials through the right side surface and the left side surface of the second metal plate.
Specifically, on the left side of the second metal plate, a plurality of graphite filling cavities are distributed in a concave cavity structure, and the plane outline of each graphite filling cavity is circular. The graphite filling cavities are regularly arranged in a rectangular array mode on the left side face of the second metal plate, and staggered arrangement is formed between adjacent rows/columns. The bottom of each graphite filling cavity is provided with a disc spring structure made of elastomer-metal materials, and a cylindrical graphite filling block is filled in the graphite filling cavity above the disc spring in a micro-clearance fit structure, namely, a compressible elastomer is filled between the root of the graphite filling block and the bottom of the corresponding graphite filling cavity. On the premise of not being assembled with the first metal plate, the graphite filling block in a free state is pushed by the elastomer to be protruded on the left side surface of the second metal plate.
The first metal plate is a stainless steel lining plate layer fixedly connected to the base plate, and the right side surface of the stainless steel lining plate layer is of a basically flat mirror surface structure. If the right side surface of the first metal plate is in a spherical crown surface structure, the mirror surface structure layer can be formed by adopting a chromium plating alloy layer.
When the first metal plate is attached to the left side face of the second metal plate through the right side face, the right side face of the first metal plate is in contact fit with the graphite filling block of the left side face of the second metal plate, friction pairs between the first metal plate and the second metal plate are antifriction and lubricated through the graphite filling block, stability, long-acting and reliability of the friction pairs are guaranteed, and the hardness of the first metal plate is greater than that of the second metal plate.
In order to reduce leakage of graphite powder generated by abrasion and reliably ensure the forming of a lubricating film, a sealing groove is formed on the periphery of the outer edge of the two left sides of the metal plate in a concave structure, and the contour track of the sealing groove surrounds all graphite filling blocks on the two left sides of the metal plate. The sealing groove of the second metal plate is embedded with a metal sealing strip, the hardness of the metal sealing strip is smaller than that of the first metal plate, and the metal sealing strip is slightly protruded from the left side surface of the second metal plate.
Example 4
The utility model comprises a first metal plate and a second metal plate which are arranged up and down, wherein the first metal plate directly forms a group of friction pairs for relative friction movement between metal materials through the bottom surface and the top surface of the second metal plate.
Specifically, on the top surface of the second metal plate, a plurality of graphite filling cavities are distributed in a concave cavity structure, and the plane outline of each graphite filling cavity is circular. The graphite filling cavities are regularly arranged on the top surface of the second metal plate in a rectangular array mode, and staggered arrangement is formed between adjacent rows/columns. Each graphite filling cavity is filled with a cylindrical graphite filling block in a micro-clearance fit structure, and the top end of the graphite filling block is basically flush with the top surface of the second metal plate and is slightly convex in general.
The first metal plate is a stainless steel lining plate layer fixedly connected to the base plate, and the bottom surface of the stainless steel lining plate layer is of a basically flat mirror surface structure.
When the first metal plate is located on the top surface of the second metal plate through the bottom surface, the bottom surface of the first metal plate is in contact fit with the graphite filling block on the top surface of the second metal plate, friction pairs between the first metal plate and the second metal plate are antifriction and lubricated through the graphite filling block, stable, long-acting and reliable friction pairs are ensured, and the hardness of the first metal plate is greater than that of the second metal plate.
In order to reduce the leakage of graphite powder and reliably ensure the forming of a lubricating film, a sealing groove is formed on the periphery of the outer edge of the second top surface of the metal plate in a concave structure, and the contour track of the sealing groove surrounds all graphite filling blocks on the second top surface of the metal plate. The sealing groove of the second metal plate is embedded with a metal sealing strip, the hardness of the metal sealing strip is smaller than that of the first metal plate, and the metal sealing strip is slightly protruded from the top surface of the second metal plate.
Example 5
Other contents of this embodiment are the same as those of embodiment 1, 2 or 3, except that:
the disc spring made of metal material is replaced by a spiral spring structure made of metal material.
Example 6
Other contents of this embodiment are the same as those of embodiment 2, 3 or 4, except that:
the metal sealing strip is easy to replace due to the position of the metal sealing strip, and can be replaced by flexible or high polymer materials.
The above examples are only intended to illustrate the present utility model, not to limit it.
Although the utility model has been described in detail with reference to the above embodiments, it will be understood by those of ordinary skill in the art that: the embodiment can be modified or part of the technical characteristics of the embodiment can be replaced equivalently, for example, the elasticity of the graphite filling block in the graphite filling cavity can be compensated, and the mechanical structure can be adopted for pushing compensation to replace the graphite filling block; such modifications and substitutions do not depart from the spirit and scope of the utility model.
Claims (8)
1. A long-life metal friction pair structure which characterized in that:
comprises a first metal plate (1) and a second metal plate (2) which are combined together by relative friction movement;
a friction pair is formed between the abutting surfaces of the first metal plate (1) and the second metal plate (2);
a plurality of graphite fillers are filled in the friction surface of the first metal plate (1) or the second metal plate (2) in a dispersing way;
the periphery of the friction surface where the graphite fillers are located is provided with a sealing structure which surrounds all the graphite fillers.
2. The long life metal friction pair structure according to claim 1, wherein:
the graphite filling blocks are filled in graphite filling cavities of corresponding concave cavity structures on the corresponding friction surfaces in an embedded mode;
and a compressible elastomer is filled between the root of the graphite filling block and the cavity bottom of the corresponding graphite filling cavity.
3. The long life metal friction pair structure according to claim 2, wherein:
the elastic body is a disc spring structure or a spiral spring structure made of metal materials.
4. The long life metal friction pair structure according to claim 2, wherein:
the graphite filling block is filled in the graphite filling cavity above the elastomer in a micro-clearance fit structure.
5. The long life metal friction pair structure according to claim 1 or 2, characterized in that:
the friction surface hardness of the graphite filling block is smaller than that of a non-graphite filling block.
6. The long life metal friction pair structure according to claim 5, wherein:
the friction surface of the non-graphite-containing filling block is formed on the base plate by a stainless steel lining plate layer structure or an alloy coating layer structure.
7. The long life metal friction pair structure according to claim 1, wherein:
the sealing structure is a metal sealing strip (3) embedded in the friction surface of any side of the first metal plate (1) or the second metal plate (2);
the hardness of the metal sealing strip (3) is smaller than that of the relative motion friction surface.
8. The long life metal friction pair structure according to claim 1, wherein:
the first metal plate (1) and the second metal plate (2) form relative friction movement in an up-down arrangement mode, and the second metal plate (2) is positioned at the bottom side of the first metal plate (1);
the graphite filling block is formed on the top surface of the second metal plate (2), and is in relative friction movement with the bottom surface of the first metal plate (1) and is lubricated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322047188.2U CN220789407U (en) | 2023-08-01 | 2023-08-01 | Long-life metal friction pair structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322047188.2U CN220789407U (en) | 2023-08-01 | 2023-08-01 | Long-life metal friction pair structure |
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| Publication Number | Publication Date |
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| CN220789407U true CN220789407U (en) | 2024-04-16 |
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| CN202322047188.2U Active CN220789407U (en) | 2023-08-01 | 2023-08-01 | Long-life metal friction pair structure |
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| CN (1) | CN220789407U (en) |
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2023
- 2023-08-01 CN CN202322047188.2U patent/CN220789407U/en active Active
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