CN219364300U - High-temperature-resistant corrosion-resistant metal friction surface spherical support - Google Patents
High-temperature-resistant corrosion-resistant metal friction surface spherical support Download PDFInfo
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- CN219364300U CN219364300U CN202223457619.4U CN202223457619U CN219364300U CN 219364300 U CN219364300 U CN 219364300U CN 202223457619 U CN202223457619 U CN 202223457619U CN 219364300 U CN219364300 U CN 219364300U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The utility model discloses a high-temperature-resistant corrosion-resistant metal friction surface spherical support, which comprises an upper support 1, a spherical crown liner plate 2 and a lower support 3 which are sequentially arranged; wherein the upper support 1 is fixed on the girder through an anchor bolt assembly 5, the lower support 3 is fixed on the abutment through an anchor bolt 4, and the spherical crown liner plate 2 is positioned in the lower support 3. The upper support 1 and the lower support plate 3 are made of duplex stainless steel, the spherical crown liner plate 2 is made of copper alloy as a solid self-lubricating material, and compared with a high polymer material sliding plate, the bearing capacity is higher, and the bearing safety redundancy is larger; the top and bottom parts of the spherical crown liner plate 2 are respectively and directly combined with the upper support 1 and the lower support 3 to form a friction pair, so that a sliding plate made of high polymer materials in a common support is replaced, the friction coefficient of the friction pair under 45Mpa is less than or equal to 0.11, the design requirement of the spherical support is met, and the spherical support is made of alloy materials, so that the spherical support can keep stable performance in a marine climate environment with high-temperature corrosion, and the service life of the spherical support is greatly prolonged.
Description
Technical Field
The utility model belongs to the technical field of bridge facilities, and particularly relates to a high-temperature-resistant corrosion-resistant metal friction surface spherical support.
Background
The spherical support is an important component for connecting the upper structure and the lower structure of the bridge, and can reliably transmit the counter force and deformation (displacement and rotation angle) of the upper structure of the bridge to the lower structure of the bridge, so that the stress condition of the structure is consistent with a theoretical calculation pattern, and the practicability and durability of the whole bridge are directly influenced by the quality and performance of the spherical support. The spherical support is generally composed of a lower support plate, a spherical crown lining plate, an upper support plate, a sliding plate (a planar sliding plate and a spherical sliding plate are respectively arranged), a rubber sealing ring, a dust cover and the like. The plane slide plate and the spherical slide plate are main sliding parts of the support, the corner of the support is realized through sliding between the spherical crown liner plate and the spherical slide plate, and the displacement of the support is realized through sliding between the plane slide plate and the lower support plate; the sliding plate is made of high polymer materials, and the surface of the sliding plate is coated with silicone grease to reduce sliding friction and abrasion, so that the abrasion of the sliding plate is related to the service life of the spherical support.
The application range of the general bridge support in the current stage is-40 ℃ to 60 ℃, and the bridge support can be used under the conditions of high-temperature and high-corrosion marine climate environment, and has the following problems: (1) Under the conditions of high-temperature and high-corrosion marine climate environment, the bridge support is required to work at the temperature of-40 ℃ to 80 ℃, and the application range of the bridge support is-40 ℃ to 60 ℃; at present, the stability of the mechanical and physical properties of a common polymer material sliding plate is drastically reduced under the condition that the temperature is higher than 60 ℃, so that the sliding plate is extremely easy to damage, and the service life of a support is reduced; (2) The silicone grease smeared on the high polymer material sliding plate can be consumed in the long-term use process, the sliding plate does not have a self-lubricating function, and the service life of the support is greatly influenced by the increase of abrasion; (3) The coating system of the bridge support needs to have good high salt spray tolerance and environmental adaptability and temperature resistance under the high-temperature and high-corrosion marine climate environment condition, and the heavy corrosion protection system used at present can have the problems of installation damage, difficult repair and the like in the installation and use process of the bridge support, so that the risk of local corrosion of the bridge support is improved, and the service life of the bridge support is influenced.
Therefore, a high-temperature-resistant corrosion-resistant spherical support is needed at present, and has the characteristics of self-lubricating function, stable performance, long service life and the like, so that the spherical support can be suitable for marine climate environment.
Disclosure of Invention
Aiming at the problem that the spherical support in the prior art is easy to fail and damage under the environment condition of high-temperature and high-corrosion marine climate, the utility model provides a high-temperature-resistant and corrosion-resistant spherical support with a metal friction surface so as to solve the problems.
In order to achieve the above purpose, the utility model provides a high-temperature-resistant corrosion-resistant metal friction surface spherical support, which comprises an upper support, wherein the upper support is made of duplex stainless steel 022Cr22Ni5Mo3N, and is fixed on a girder through an anchor bolt assembly, and a first mirror layer is arranged at the bottom of the upper support; the spherical crown lining plate is made of copper alloy ZCUAl9Mn material, is positioned between the upper support and the lower support and is used as a sliding part, the top of the spherical crown lining plate is provided with a second mirror layer with a spherical structure, and the bottom of the spherical crown lining plate is provided with a third mirror layer with a planar structure; the lower support is made of duplex stainless steel 022Cr22Ni5Mo3N, is fixed on the abutment through a foot bolt, and is provided with a fourth mirror layer at the top; the spherical friction pair formed by the first mirror layer and the second mirror layer rotates by utilizing a spherical surface, so that the rotation angle of the support is adjusted; the plane friction pair formed by the third mirror layer and the fourth mirror layer is utilized to horizontally displace by utilizing the plane, so that the horizontal sliding of the support is realized; the friction coefficient of the spherical friction pair and the plane friction pair under the pressure of 45Mpa is less than or equal to 0.11.
Further, a plurality of embedded holes are formed in the top and bottom of the spherical crown lining plate in an array mode, and graphite lubrication columns are arranged in the embedded holes.
Further, the bottom of the graphite lubrication column is also provided with a spring, the other end of the spring is abutted against the bottom of the inlaid hole, and the graphite lubrication column is pushed by the spring through self elastic potential energy, so that the graphite lubrication column is always abutted against the first mirror surface layer and the fourth mirror surface layer respectively, the relative sliding is worn to form a lubrication layer, the friction coefficient of a spherical friction pair and a plane friction pair is reduced, and the wear of a spherical crown lining plate is reduced.
Further, the anchor bolt component and the anchor bolt are respectively made of steel materials of A2-70 materials.
Further, the top of the lower support is provided with limiting frames along the forward bridge direction and the transverse bridge direction respectively, and the upper support is limited by the limiting frames, so that the upper support bears horizontal loads in all directions, and no displacement exists in all directions.
Further, the lower support top is equipped with the locating rack along the horizontal bridge to, be equipped with the curb plate gib block on the locating rack, the curb plate gib block cooperates with the recess of locating the upper support side along the horizontal bridge to, carries out spacing direction to the upper support, avoids it to horizontal displacement along the horizontal bridge, makes it carry out unidirectional horizontal displacement along the bridge to.
Further, the area of the fourth mirror layer arranged at the top of the lower support is larger than that of the third mirror layer, so that the spherical crown liner plate can horizontally slide along multiple directions at the top of the lower support, and accordingly, the spherical crown liner plate bears horizontal loads in all directions and has multi-directional displacement performance.
In general, the above technical solutions conceived by the present utility model, compared with the prior art, enable the following beneficial effects to be obtained:
1. the spherical support with the high-temperature-resistant and corrosion-resistant metal friction surface adopts the copper alloy ZCUAl9Mn (or materials with the same performance), the chemical components and the mechanical properties of the spherical support meet the requirements of GB/T1176-2013, the spherical support has good corrosion resistance, and when the spherical support directly forms a friction pair with an upper support and a lower support respectively, the spherical support has good slidability and self-lubricating performance due to the material characteristics, silicone grease does not need to be smeared, and the friction coefficient is low and stable.
2. According to the high-temperature-resistant corrosion-resistant metal friction surface spherical support, the plurality of embedded holes are formed in the top and bottom of the spherical crown liner plate in an array mode, graphite lubrication columns are arranged in the embedded holes, when the spherical crown liner plate slides relative to the upper support and the lower support respectively, the outer side portions of the graphite lubrication columns are worn and adhered to the friction surface, a firm lubrication film can be formed, the wettability of the metal surface to other lubricants can be improved, and accordingly a long-time lubrication effect is maintained.
3. The high-temperature-resistant corrosion-resistant metal friction surface spherical support is prepared from the upper support and the lower support plate by adopting the duplex stainless steel 022Cr22Ni5Mo3N, the chemical components and the mechanical properties of the spherical support meet the requirements of GB/T4237-2007, and the anchor bolt component and the anchor bolt are respectively prepared from steel materials made of A2-70 materials, so that the whole structural material of the spherical support has high-temperature resistance and corrosion resistance, the stability of the performance of the spherical support can be maintained in a marine climate environment with high-temperature corrosion, and the service life of the spherical support is greatly prolonged.
Drawings
FIG. 1 is a schematic structural view of a high temperature and corrosion resistant spherical bearing with a metal friction surface according to a first embodiment of the present utility model;
FIG. 2 is a schematic bottom view of a crown liner according to a first embodiment of the present utility model;
FIG. 3 is a schematic view of a structure of a fixed ball mount according to a second embodiment of the present utility model;
FIG. 4 is a schematic view of a structure of a unidirectional ball-type support according to a third embodiment of the present utility model;
fig. 5 is a schematic structural view of a multidirectional spherical support according to a third embodiment of the present utility model.
Like reference numerals denote like technical features throughout the drawings, in particular: 1-upper support, 11-first mirror layer, 2-spherical crown welt, 21-second mirror layer, 22-third mirror layer, 23-inlay hole, 3-lower support, 31-fourth mirror layer, 32-spacing, 4-rag bolt, 5-crab-bolt subassembly, 6-graphite lubrication column, 7-curb plate gib.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1-2, the utility model provides a high-temperature-resistant corrosion-resistant metal friction surface spherical support, which comprises an upper support 1, a spherical crown liner plate 2 and a lower support 3 which are sequentially arranged; wherein the upper support 1 is fixed on the girder through an anchor bolt assembly 5, the lower support 3 is fixed on the abutment through an anchor bolt 4, and the spherical crown liner plate 2 is positioned on the top of the lower support 3. The top of the spherical crown liner plate 2 is provided with a second mirror layer 21 with a spherical structure, and the bottom of the spherical crown liner plate is provided with a third mirror layer 22 with a planar structure; the bottom of the upper support 1 is provided with a first mirror layer 11 matched with the second mirror layer 21; the top of the lower support 3 is provided with a fourth mirror layer 31. The spherical friction pair consisting of the first mirror layer 11 and the second mirror layer 21 is rotated by utilizing a spherical surface, so that the rotation angle of the support is adjusted; the plane friction pair formed by the third mirror layer 22 and the fourth mirror layer 31 is utilized to horizontally displace by utilizing the plane, so that the horizontal sliding of the support is realized. In the support, the spherical crown liner plate 2 is made of a copper alloy ZCUAl9Mn material, the chemical components and the mechanical properties of the spherical crown liner plate meet the requirements of GB/T1176-2013, the upper support 1 and the lower support plate 3 are made of duplex stainless steel 022Cr22Ni5Mo3N, and the chemical components and the mechanical properties of the spherical crown liner plate meet the requirements of GB/T4237-2007; the spherical crown liner plate 2 adopts copper alloy as a solid self-lubricating material, and has higher bearing capacity compared with a high polymer material sliding plate, and the bearing safety redundancy is larger when the spherical crown liner plate is designed and the same surface pressure as the high polymer material sliding plate is adopted; the top and bottom parts of the spherical crown liner plate 2 are respectively and directly combined with the upper support 1 and the lower support 3 to form a friction pair, so that a plane slide plate and a spherical slide plate which are made of high polymer materials in a common support are replaced, the friction coefficient of the friction pair under 45Mpa is less than or equal to 0.11, the design requirement of the spherical support is met, and the spherical support is made of alloy materials, so that the spherical support can keep stable performance in a marine climate environment with high-temperature corrosion, and the service life of the spherical support is greatly prolonged.
Example 1
As shown in FIG. 1, the upper support 1 is made of duplex stainless steel 022Cr22Ni5Mo3N (or materials with the same performance), and the chemical components and the mechanical properties of the upper support meet the requirements of GB/T4237-2007. The bottom of the upper support 1 is polished to form a first mirror layer 11 which is of a concave spherical structure and is matched with the spherical crown lining plate 2, and the rotation angle of the support is adjusted by forming a spherical friction pair with the spherical crown lining plate 2. During installation work, the upper support 1 can be fixed on the girder through the anchor bolt assembly 5, wherein the anchor bolt assembly 5 is made of stainless steel materials, has good corrosion resistance, and can be preferably made of steel materials of A2-70 materials.
The lower support 3 adopts duplex stainless steel 022Cr22Ni5Mo3N (or materials with the same performance), and the chemical components and the mechanical properties of the lower support meet the requirements of GB/T4237-2007. The top of the lower support 3 is polished to form a fourth mirror layer 31 which is of a planar structure and is matched with the bottom of the spherical crown liner plate 2, and the horizontal sliding of the support is realized by forming a planar friction pair with the spherical crown liner plate 2. During installation work, the lower support 3 can be fixed on the girder by pouring the foundation bolts 4 in advance, wherein the foundation bolts 4 are made of stainless steel materials, have good corrosion resistance, and can be preferably made of steel materials of A2-70 materials.
The spherical crown liner plate 2 adopts copper alloy ZCUAl9Mn (or materials with the same performance), the chemical components and the mechanical properties of the spherical crown liner plate meet the requirements of GB/T1176-2013, the spherical crown liner plate has good corrosion resistance, and when the spherical crown liner plate directly forms a friction pair with the upper support 1 and the lower support 3 respectively, the spherical crown liner plate has good sliding property and self-lubricating property due to the material characteristics, silicone grease does not need to be smeared, and the friction coefficient is low and stable. Preferably, as shown in fig. 2, a plurality of inlay holes 23 are formed in the top and bottom of the spherical cap liner plate 2, graphite lubrication columns 6 are provided in the inlay holes 23, and when the spherical cap liner plate 2 slides relative to the upper support 1 and the lower support 3, respectively, the outer parts of the graphite lubrication columns 6 are worn and adhered to the friction surfaces, so that a firm lubrication film can be formed, the wettability of the metal surface to other lubricants can be improved, and long-time lubrication effect can be maintained. Preferably, the bottom of the graphite lubrication column 6 is further provided with a spring, the other end of the spring is abutted against the bottom of the inlaid hole 23, and the graphite lubrication column 6 is pushed by the elastic potential energy of the spring, so that the graphite lubrication column 6 is kept in an abutting state with the first mirror layer 11 and the fourth mirror layer 31 all the time respectively, and is more easily worn to form a lubrication layer when sliding relatively, so that the friction coefficient of a spherical friction pair and a plane friction pair is reduced, the abrasion of the spherical crown liner plate 2 is reduced, the operation of the spherical crown liner plate is more stable, and the service life of the spherical support is greatly prolonged.
Example 2
As shown in fig. 3, in a second embodiment of the present utility model, a high temperature resistant and corrosion resistant metal friction surface spherical support is provided, which bears horizontal loads in all directions, and has no displacement in all directions; the spherical crown liner plate comprises an upper support 1, a spherical crown liner plate 2 and a lower support 3 which are sequentially arranged; the upper support 1 is fixed on a girder through an anchor bolt assembly 5, and the lower support 3 is fixed on a pier through an anchor bolt 4; the upper support plate 1 and the lower support plate 3 are respectively made of duplex stainless steel 022Cr22Ni5Mo3N, the spherical crown lining plate 2 is made of copper alloy ZCuAl9Mn material, and the anchor bolt assembly 5 and the anchor bolt 4 are respectively made of steel materials of A2-70 materials; the top of the spherical crown liner plate 2 is provided with a second mirror layer 21, and a spherical friction pair is formed by the second mirror layer 21 and a first mirror layer 11 arranged at the bottom of the upper support 1; the bottom of the spherical crown liner plate 2 is provided with a plane friction pair consisting of a third mirror layer 22 and a fourth mirror layer 31 arranged at the top of the lower support 3; the top and bottom of the spherical crown liner plate 2 are provided with a plurality of embedded holes 23 in an array, and graphite lubrication columns 6 are arranged in the embedded holes 23; and a spring is arranged between the bottom of the graphite lubrication column 6 and the bottom of the embedded hole 23.
In the third embodiment of the utility model, the top of the lower support 3 is respectively provided with a limiting frame 32 along the forward bridge direction and the transverse bridge direction, and the upper support 1 is limited by the limiting frame 32 to avoid horizontal displacement.
Example 3
As shown in fig. 4, in a third embodiment of the present utility model, a high temperature resistant and corrosion resistant spherical bearing with metal friction surface is provided, which is subjected to unidirectional horizontal load and has forward bridge displacement performance; the spherical crown liner plate comprises an upper support 1, a spherical crown liner plate 2 and a lower support 3 which are sequentially arranged; the upper support 1 is fixed on a girder through an anchor bolt assembly 5, and the lower support 3 is fixed on a pier through an anchor bolt 4; the upper support 1 and the lower support plate 3 are respectively made of duplex stainless steel 022Cr22Ni5Mo3N, the spherical crown lining plate 2 is made of copper alloy ZCUAl9Mn material, and the anchor bolt assembly 5 and the anchor bolt 4 are respectively made of steel materials of A2-70 materials; the top of the spherical crown liner plate 2 is provided with a second mirror layer 21, and a spherical friction pair is formed by the second mirror layer 21 and a first mirror layer 11 arranged at the bottom of the upper support 1; the bottom of the spherical crown liner plate 2 is provided with a plane friction pair consisting of a third mirror layer 22 and a fourth mirror layer 31 arranged at the top of the lower support 3; the top and bottom of the spherical crown liner plate 2 are provided with a plurality of embedded holes 23 in an array, and graphite lubrication columns 6 are arranged in the embedded holes 23; and a spring is arranged between the bottom of the graphite lubrication column 6 and the bottom of the embedded hole 23.
In the third embodiment of the utility model, a limit frame 32 is arranged at the top of the lower support 3 along the transverse bridge direction, and a side plate guide strip 7 is arranged on the limit frame 32 and is matched with a groove arranged at the side edge of the upper support 1 along the transverse bridge direction to limit and guide the upper support 1, so that the upper support 1 is prevented from horizontally displacing along the transverse bridge direction and is horizontally displaced along the forward bridge direction in one direction.
Example 4
As shown in fig. 5, in a fourth embodiment of the present utility model, a high temperature resistant and corrosion resistant spherical bearing with a metal friction surface is provided, which is capable of bearing horizontal loads in all directions and has a multi-directional displacement performance; the spherical crown liner plate comprises an upper support 1, a spherical crown liner plate 2 and a lower support 3 which are sequentially arranged; the upper support 1 is fixed on a girder through an anchor bolt assembly 5, and the lower support 3 is fixed on a pier through an anchor bolt 4; the upper support 1 and the lower support plate 3 are respectively made of duplex stainless steel 022Cr22Ni5Mo3N, the spherical crown lining plate 2 is made of copper alloy ZCUAl9Mn material, and the anchor bolt assembly 5 and the anchor bolt 4 are respectively made of steel materials of A2-70 materials; the top of the spherical crown liner plate 2 is provided with a second mirror layer 21, and a spherical friction pair is formed by the second mirror layer 21 and a first mirror layer 11 arranged at the bottom of the upper support 1; the bottom of the spherical crown liner plate 2 is provided with a plane friction pair consisting of a third mirror layer 22 and a fourth mirror layer 31 arranged at the top of the lower support 3; the top and bottom of the spherical crown liner plate 2 are provided with a plurality of embedded holes 23 in an array, and graphite lubrication columns 6 are arranged in the embedded holes 23; and a spring is arranged between the bottom of the graphite lubrication column 6 and the bottom of the embedded hole 23.
In the fourth embodiment of the present utility model, the area of the fourth mirror layer 31 provided on the top of the lower support 3 is larger than the area of the third mirror layer 22, so that the spherical cap liner plate 2 can horizontally slide along multiple directions on the top of the lower support 3, thereby bearing horizontal loads in all directions and having a multi-directional displacement performance.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. A high temperature resistant corrosion resistant metallic friction face spherical bearing comprising:
the upper support (1) is made of duplex stainless steel 022Cr22Ni5Mo3N, is fixed on a girder through an anchor bolt assembly (5), and is provided with a first mirror layer (11) at the bottom;
the spherical crown lining plate (2) is made of copper alloy ZCuAl9Mn material, is positioned between the upper support (1) and the lower support (3) and is used as a sliding part, the top of the spherical crown lining plate is provided with a second mirror layer (21) with a spherical structure, and the bottom of the spherical crown lining plate is provided with a third mirror layer (22) with a planar structure;
the lower support (3) is made of duplex stainless steel 022Cr22Ni5Mo3N, is fixed on the abutment through a foot bolt (4), and is provided with a fourth mirror layer (31) at the top;
the spherical friction pair formed by the first mirror layer (11) and the second mirror layer (21) rotates by utilizing a spherical surface to realize the rotation angle adjustment of the support; the plane friction pair consisting of the third mirror layer (22) and the fourth mirror layer (31) is utilized to horizontally displace by utilizing the plane, so that the horizontal sliding of the support is realized; the friction coefficient of the spherical friction pair and the plane friction pair under the pressure of 45Mpa is less than or equal to 0.11.
2. The high-temperature-resistant corrosion-resistant metal friction surface spherical support according to claim 1, wherein a plurality of embedded holes (23) are formed in the top and bottom of the spherical crown liner plate (2) in an array mode, and graphite lubrication columns (6) are arranged in the embedded holes (23).
3. The high-temperature-resistant corrosion-resistant metal friction surface spherical support according to claim 2, wherein a spring is further arranged at the bottom of the graphite lubrication column (6), the other end of the spring is abutted against the bottom of the embedded hole (23), the graphite lubrication column (6) is pushed by the spring through self elastic potential energy, so that the graphite lubrication column (6) is kept in an abutting state with the first mirror surface layer (11) and the fourth mirror surface layer (31) all the time respectively, and the relative sliding is worn to form a lubrication layer, so that the friction coefficient of a spherical friction pair and a plane friction pair is reduced, and the wear of the spherical crown lining plate (2) is reduced.
4. The high-temperature-resistant corrosion-resistant metal friction surface spherical support according to claim 1, wherein the anchor bolt assembly (5) and the anchor bolt (4) are respectively made of steel materials of A2-70 materials.
5. The high-temperature-resistant corrosion-resistant metal friction surface spherical support according to any one of claims 1 to 4, wherein the top of the lower support (3) is provided with limiting frames (32) along the forward and transverse directions respectively, and the upper support (1) is limited by the limiting frames (32) so as to bear horizontal loads in all directions without displacement in all directions.
6. The high-temperature-resistant corrosion-resistant metal friction surface spherical support according to any one of claims 1 to 4, wherein a limiting frame (32) is arranged at the top of the lower support (3) along the transverse bridge direction, a side plate guide strip (7) is arranged on the limiting frame (32), the side plate guide strip (7) is matched with a groove arranged on the side edge of the upper support (1) along the transverse bridge direction, and the upper support (1) is limited and guided to avoid horizontal displacement along the transverse bridge direction and unidirectional horizontal displacement along the forward bridge direction.
7. The high-temperature-resistant corrosion-resistant metal friction surface spherical support according to any one of claims 1 to 4, wherein the area of a fourth mirror layer (31) arranged on the top of the lower support (3) is larger than that of a third mirror layer (22), so that the spherical crown liner plate (2) can horizontally slide along multiple directions on the top of the lower support (3), thereby bearing horizontal loads in all directions and having multi-directional displacement performance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223457619.4U CN219364300U (en) | 2022-12-23 | 2022-12-23 | High-temperature-resistant corrosion-resistant metal friction surface spherical support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223457619.4U CN219364300U (en) | 2022-12-23 | 2022-12-23 | High-temperature-resistant corrosion-resistant metal friction surface spherical support |
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| CN219364300U true CN219364300U (en) | 2023-07-18 |
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| CN202223457619.4U Active CN219364300U (en) | 2022-12-23 | 2022-12-23 | High-temperature-resistant corrosion-resistant metal friction surface spherical support |
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| CN (1) | CN219364300U (en) |
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- 2022-12-23 CN CN202223457619.4U patent/CN219364300U/en active Active
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