Lifting-free tensile support

Abstract

The utility model relates to a lifting-free tensile support which can adapt to movement of a bridge in the length direction of a limiting groove. A second wear-resisting plate, a spherical crown lining plate and a third wear-resisting plate are sequentially arranged between the piston and the bottom basin assembly from top to bottom, the lower end of the piston can do spherical rotation on the spherical crown lining plate, a gap is formed between a second limiting protrusion and the piston, the influence on rotation of the piston can be avoided, and the function of a spherical support can be achieved; a limiting protrusion at the upper end of the piston is matched with a limiting groove so that the piston and the upper support plate assembly can form vertical limiting, a second limiting protrusion of the tensile plate limits the first limiting protrusion to move upwards, vertical limiting is formed, the tensile plate is annular, and the first limiting protrusion and the second limiting protrusion are annular. And the stability of vertical limiting can be guaranteed, so that the spherical support cannot form the vertical displacement capacity of the bridge, and a beam body is prevented from being slightly lifted or deviated when a train runs.

Description

Technical Field

[0001] The utility model relates to the technical field of spherical bearings, in particular to a non-lifting tensile bearing. Background Art

[0002] Spherical steel bearings have the advantages of large bearing capacity, small rotational moment and large-angle rotation, and have become the preferred bearings for newly built rail transit bridges.

[0003] The beam body of the cloud rail bridge generally adopts a steel structure or a steel-concrete combination mode. The beam body is lighter compared with conventional highway or railway bridges, and has higher requirements for line construction. When the train runs, affected by construction errors, the beam body may be lifted; the cloud rail does not have a conventional track, and has more stringent requirements for line stability, and does not allow the beam body to have slight lifting or deviation during train operation. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a non-lifting tensile bearing for the problem of vertical displacement existing in the spherical bearing in the prior art.

[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A non-lifting tensile bearing includes an upper bearing plate assembly, a piston and a bottom basin assembly. The upper bearing plate assembly is provided with upper anchor steel bars, and the bottom basin assembly is provided with lower anchor steel bars;

[0007] The upper bearing plate assembly includes an upper bearing plate. L-shaped limit plates are arranged on opposite sides below the upper bearing plate. A limit groove is formed between the L-shaped limit plates and the upper bearing plate. The openings of the limit grooves on both sides are arranged opposite to each other;

[0008] The upper end of the piston is correspondingly provided with a limit protrusion for the limit groove. The limit protrusion is located in the corresponding limit groove and can slide in the limit groove. A wear-resistant plate I is arranged on the top surface of the piston, and the wear-resistant plate I is located between the piston and the upper bearing plate;

[0009] The lower end of the piston is located in the bottom basin assembly. A first limit protrusion is arranged on the outer side of the lower end of the piston. A wear-resistant plate II, a spherical crown liner and a wear-resistant plate III are sequentially arranged between the piston and the bottom basin assembly from top to bottom. The bottom surface of the piston has a spherical surface. The top and bottom surfaces of the wear-resistant plate II are spherical surfaces. The top surface of the spherical crown liner is a spherical surface and the bottom surface is a plane. The spherical surface of the bottom surface of the piston, the spherical surfaces of the top and bottom surfaces of the wear-resistant plate II and the spherical surface of the top surface of the spherical crown liner are adaptively arranged. The wear-resistant plate III is adaptively arranged with the plane of the bottom surface of the spherical crown liner;

[0010] The bottom basin assembly has a basin wall, and a ring-shaped tensile plate is fixedly arranged above the basin wall. The inner side of the tensile plate has a second limit protrusion, and there is a distance between the second limit protrusion and the piston in the horizontal direction. Both the first limit protrusion and the second limit protrusion are annular, and the second limit protrusion restricts the upward movement of the first limit protrusion.

[0011] In this solution, the limit protrusions at the upper end of the piston can slide in the limit grooves on the relative two sides below the upper support plate of the upper support plate assembly, and there is a first wear-resistant plate between the piston and the upper support plate, so that the upper end of the piston and the upper support plate can move relative to each other to adapt to the movement of the beam body along the length direction of the limit groove; the lower end of the piston is located in the bottom basin assembly, and a second wear-resistant plate, a spherical crown lining plate, and a third wear-resistant plate are sequentially arranged between the piston and the bottom basin assembly from top to bottom. The bottom surface of the piston has a spherical surface, the top and bottom surfaces of the second wear-resistant plate are spherical surfaces, the top surface of the spherical crown lining plate is a spherical surface and the bottom surface is a plane, the spherical surface of the bottom surface of the piston, the spherical surfaces of the top and bottom surfaces of the second wear-resistant plate, and the spherical surface of the top surface of the spherical crown lining plate are adaptively arranged, and the plane of the bottom surface of the spherical crown lining plate is adapted to the third wear-resistant plate, so that the spherical crown lining plate can make a relative translational movement in the bottom basin assembly, and the lower end of the piston can make a spherical rotation on the spherical crown lining plate, and there is a distance between the second limit protrusion and the piston, which can avoid affecting the rotation of the piston, and it can realize the function of the spherical bearing.

[0012] The cooperation between the limit protrusions at the upper end of the piston and the limit grooves can make the piston and the upper support plate assembly form a vertical limit. The second limit protrusion of the tensile plate restricts the upward movement of the first limit protrusion to form a vertical limit, and the tensile plate is annular. Both the first limit protrusion and the second limit protrusion are annular, which can ensure the stability of the vertical limit, so that the spherical bearing cannot form the vertical displacement ability of the bridge and avoid the slight lifting or deviation of the beam body during train operation.

[0013] As a preferred solution of the present invention, the contact surface between the first limit protrusion and the second limit protrusion is in spherical surface adaptive contact, and the spherical surface of the first limit protrusion is adapted to the spherical surface of the bottom surface of the piston, so that it can better adapt to the rotation of the piston on the spherical crown lining plate in the bottom basin assembly.

[0014] As a preferred solution of the present invention, a friction pair is arranged between the contact surfaces of the first limit protrusion and the second limit protrusion. The friction pair includes friction plates respectively arranged on the lower surface of the first limit protrusion and the upper surface of the second limit protrusion.

[0015] As a preferred solution of the present invention, the tensile plate is made of steel structure, the friction plate is made of steel structure, and the friction plate is welded to the second limit protrusion of the tensile plate.

[0016] As a preferred embodiment of the present utility model, the tensile plate is made of steel structure, the friction plate is made of polymer material structure, and the friction plate is embedded in the second limiting protrusion of the tensile plate.

[0017] As a preferred embodiment of the present utility model, the opposite surfaces between the first limiting protrusion and the second limiting protrusion are flat surfaces, and an elastic body is provided between the first limiting protrusion and the second limiting protrusion.

[0018] Through the deformation of the elastic body, it can better adapt to the rotation of the piston on the spherical crown lining plate in the bottom basin assembly without affecting the limitation of the lower end of the piston by the tensile plate.

[0019] As a preferred embodiment of the present utility model, the first limiting protrusion contacts the basin wall, the basin wall is a cylindrical surface, and the surface where the first limiting protrusion contacts the basin wall is a spherical surface, which can prevent the lower end of the piston from making translational motion in the bottom basin assembly without affecting the rotation of the piston on the spherical crown lining plate in the bottom basin assembly.

[0020] As a preferred embodiment of the present utility model, the tensile plate includes semi-circular plates arranged oppositely, which is convenient for installation compared with the whole circular ring structure.

[0021] As a preferred embodiment of the present utility model, the tensile plate is connected to the basin wall by bolts, which is convenient and stable for connection.

[0022] As a preferred embodiment of the present utility model, the bolts are arranged at intervals and evenly along the circumferential direction of the tensile plate.

[0023] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0024] 1. For the non-lifting tensile bearing of the present utility model, the limiting protrusion at the upper end of the piston can slide in the limiting grooves on the relative two sides below the upper bearing plate of the upper bearing plate assembly, and there is a wear-resistant plate I between the piston and the upper bearing plate, so that the upper end of the piston and the upper bearing plate can move relative to each other to adapt to the movement of the bridge along the length direction of the limiting groove; a wear-resistant plate II, a spherical crown lining plate and a wear-resistant plate III are sequentially arranged between the piston and the bottom basin assembly from top to bottom. The lower end of the piston can make spherical rotation on the spherical crown lining plate, and there is a distance between the second limiting protrusion and the horizontal direction of the piston, which can avoid affecting the rotation of the piston. It can realize the function of a spherical bearing; the cooperation between the limiting protrusion at the upper end of the piston and the limiting groove can make the piston and the upper bearing plate assembly form a vertical limit, and the second limiting protrusion of the tensile plate restricts the upward movement of the first limiting protrusion to form a vertical limit. Moreover, the tensile plate is annular, and both the first limiting protrusion and the second limiting protrusion are annular, which can ensure the stability of the vertical limit, so that the spherical bearing cannot form the vertical displacement ability of the bridge, and avoid the slight lifting or deviation of the beam body during the train operation.

[0025] 2. For the non-lifting tensile bearing of the present utility model, the contact between the first limiting protrusion and the second limiting protrusion is spherical, enabling better adaptation to the rotation of the piston on the spherical crown liner within the bottom basin assembly.

[0026] 3. For the non-lifting tensile bearing of the present utility model, an elastomer is provided between the planes of the first limiting protrusion and the second limiting protrusion. Through the deformation of the elastomer, it can better adapt to the rotation of the piston on the spherical crown liner within the bottom basin assembly without affecting the limitation of the lower end of the piston by the tensile plate.

[0027] 4. For the non-lifting tensile bearing of the present utility model, the first limiting protrusion contacts the basin wall. The basin wall is a cylindrical surface, and the surface of the first limiting protrusion contacting the basin wall is a spherical surface, which can prevent the lower end of the piston from making translational motion within the bottom basin assembly without affecting the rotation of the piston on the spherical crown liner within the bottom basin assembly.

[0028] 5. For the non-lifting tensile bearing of the present utility model, the tensile plate includes semi-circular plates arranged oppositely, which is convenient for installation compared with the entire circular ring structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic semi-sectional structure view of the non-lifting tensile bearing of the present utility model Figure 1 ;

[0030] Figure 2 is a schematic semi-sectional structure view of the non-lifting tensile bearing of the present utility model Figure 2 ;

[0031] Figure 3 is a schematic plan view of the non-lifting tensile bearing of the present utility model;

[0032] Figure 4 is a schematic plan view of the tensile plate;

[0033] Figure 5 is Figure 1 an enlarged view of the tensile plate at the circle in Figure 1 ;

[0034] Figure 6 is Figure 1 an enlarged view of the tensile plate at the circle in Figure 2 .

[0035] Icons: 1. Upper support plate assembly; 11. L-shaped limit plate; 12. Upper anchor steel bar; 2. Wear-resistant plate 1; 3. Piston; 31. First limit protrusion; 32. Elastomer; 4. Tensile plate; 41. Half-ring plate; 42. Bolt; 43. Second limit protrusion; 44. Friction plate; 5. Wear-resistant plate 2; 6. Spherical crown liner; 7. Wear-resistant plate 3; 8. Bottom basin assembly; 81. Basin wall; 9. Lower anchor steel bar. Specific embodiments

[0036] The present utility model will be further described in detail below in combination with test examples and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter of the present utility model is limited to the following embodiments. Any technology implemented based on the content of the present utility model belongs to the scope of the present utility model.

[0037] In the description of the specific embodiments of the present utility model, without special explanation, the expression terms indicating the orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the utility model product / device / equipment is commonly used. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present utility model or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, it should not be understood as a limitation to the present utility model.

[0038] In addition, if terms such as "horizontal", "vertical", "hanging", "parallel" appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but it can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but it can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still play its role in the solution of the present utility model.

[0039] In addition, the expressions such as "first", "second", "third", etc. in the terms are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0040] In addition, in the description of the embodiments of the present utility model, "several", "multiple", and "a number of" represent at least two. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., and even can be a situation exceeding 9.

[0041] In addition, in the description of the technical solution of the present utility model, unless otherwise clearly specified / defined / restricted, where the terms "set", "installed", "connected", "linked", "provided with", "laid", "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, threaded connection, etc. Such a connection can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components.

[0042] Embodiment 1

[0043] This embodiment provides a non-lifting tensile bearing, which is a bearing applied to railways, highways, rail transit, and cloud rail bridges that can resist vertical lifting. Refer to Figures 1-5 , the non-lifting tensile bearing includes an upper bearing plate assembly 1, a piston 3, and a bottom basin assembly 8. The upper bearing plate assembly 1 is provided with upper anchor steel bars 12, and the bottom basin assembly 8 is provided with lower anchor steel bars 9; the upper anchor steel bars 12 are used to anchor the upper beam body, and the lower anchor steel bars 9 are used to anchor in the lower structures such as pier columns so that the non-lifting tensile bearing supports the beam body on the lower structures such as pier columns. For example, the lower anchor steel bars are buried in the pier body cushion stone.

[0044] As Figure 1 shown, the upper bearing plate assembly 1 includes an upper bearing plate. Opposite sides below the upper bearing plate are provided with L-shaped limit plates 11. A limit groove is formed between the L-shaped limit plates 11 and the upper bearing plate, and the openings of the limit grooves on both sides are arranged oppositely;

[0045] The upper end of the piston 3 is correspondingly provided with limit protrusions corresponding to the limit grooves. The limit protrusions are located in the corresponding limit grooves, and the limit protrusions can slide in the limit grooves. A wear-resistant plate 2 is embedded in the groove on the top surface of the piston 3. The wear-resistant plate 2 is located between the piston 3 and the upper bearing plate; among them, a stainless steel plate is provided at the bottom of the upper bearing plate of the upper bearing plate assembly 1 corresponding to the wear-resistant plate 2, and the stainless steel plate and the wear-resistant plate 2 form a planar friction pair, that is, the limit protrusions at the upper end of the piston 3 can slide in the limit grooves on the opposite sides below the upper bearing plate of the upper bearing plate assembly 1, so that the upper end of the piston 3 and the upper bearing plate can move relatively to adapt to the movement of the bridge along the length direction of the limit groove. And the cooperation between the limit protrusions at the upper end of the piston 3 and the limit grooves can make the piston 3 and the upper bearing plate assembly 1 form a vertical limit.

[0046] The lower end of the piston 3 is located within the bottom basin assembly 8. A first limiting protrusion 31 is provided on the outer side of the lower end of the piston 3. A second wear-resistant plate 5, a spherical crown lining plate 6, and a third wear-resistant plate 7 are sequentially arranged between the piston 3 and the bottom basin assembly 8 from top to bottom. The bottom surface of the piston 3 has a spherical surface. The top and bottom surfaces of the second wear-resistant plate 5 are both spherical surfaces. The top surface of the spherical crown lining plate 6 is a spherical surface and the bottom surface is a flat surface. The spherical surface of the bottom surface of the piston 3, the spherical surfaces of the top and bottom surfaces of the second wear-resistant plate 5, and the spherical surface of the top surface of the spherical crown lining plate 6 are adaptively arranged, that is, the second wear-resistant plate 5 is embedded between the spherical surface groove at the lower end of the piston 3 and the spherical surface of the top surface of the spherical crown lining plate 6. The spherical surface of the lower end of the piston 3, the spherical surface of the top surface of the second wear-resistant plate 5, the spherical surface of the bottom surface of the second wear-resistant plate 5, and the spherical surface of the top surface of the spherical crown lining plate 6 form a rotational friction pair and can form rotation; while the third wear-resistant plate 7 is adapted to the flat surface of the bottom surface of the spherical crown lining plate 6, and the bottom surface of the spherical crown lining plate 6 and the third wear-resistant plate 7 form a planar friction pair, enabling the spherical crown lining plate 6 to perform relative translational movement within the bottom basin assembly 8, so that the piston 3 has better rotational conditions within the bottom basin assembly 8. There is a stainless steel plate between the third wear-resistant plate 7 and the inner bottom surface of the bottom basin assembly 8. The stainless steel plate is embedded in the inner bottom surface of the bottom basin assembly 8, and the third wear-resistant plate is embedded in the bottom surface groove of the spherical crown lining plate 6.

[0047] As Figures 1-4 shown, the bottom basin assembly 8 has a basin wall 81. An annular tensile plate 4 is fixedly provided above the basin wall 81. A second limiting protrusion 43 is provided inside the tensile plate 4. There is a spacing between the second limiting protrusion 43 and the piston 3 in the horizontal direction, so as not to affect the rotation of the piston 3. Both the first limiting protrusion 31 and the second limiting protrusion 43 are annular. The second limiting protrusion 43 restricts the upward movement of the first limiting protrusion 31, which can ensure the stability of vertical limitation, so that the spherical bearing cannot form the vertical displacement ability of the bridge, and avoid slight lifting or deviation of the beam body during train operation.

[0048] In this embodiment, as Figure 1 and Figure 5As shown, the contact between the first limiting protrusion 31 and the second limiting protrusion 43 is a spherical surface adaptation contact. The spherical surface of the first limiting protrusion 31 is adapted to the spherical surface of the bottom surface of the piston 3, so as to better adapt to the rotation of the piston 3 on the spherical crown liner 6 in the bottom basin assembly 8. A friction pair is provided between the contact surfaces of the first limiting protrusion 31 and the second limiting protrusion 43. The friction pair includes friction plates 44 respectively arranged under the first limiting protrusion 31 and above the second limiting protrusion 43. The tensile plate 4 is made of steel structure, the friction plate 44 is made of steel structure, and the friction plate 44 is welded to the second limiting protrusion 43 of the tensile plate 4. The steel structure friction plate 44 is wear-resistant but has a greater damping. The friction plate 44 is made of a polymer material structure, and the friction plate 44 is embedded in the second limiting protrusion 43 of the tensile plate 4. The polymer material structure has a smaller damping and has little influence on the rotation of the piston 3.

[0049] As Figure 5 and Figure 6 shown, the first limiting protrusion 31 contacts the basin wall 81. The basin wall 81 is a cylindrical surface, and the surface of the first limiting protrusion 31 contacting the basin wall 81 is a spherical surface, which can prevent the lower end of the piston 3 from making translational motion in the bottom basin assembly 8. In the direction perpendicular to the length direction of the limiting groove, the translational motion of the bridge can be restricted, and it does not affect the rotation of the piston 3 on the spherical crown liner 6 in the bottom basin assembly 8.

[0050] In this embodiment, as Figure 3 and Figure 4 shown, the tensile plate 4 includes semi-circular plates 41 arranged oppositely. Compared with the entire circular ring structure, it is convenient for installation. The tensile plate 4 is connected to the basin wall 81 through bolts 42, and the connection is convenient and stable. As a more stable way, the bolts 42 are arranged at intervals and evenly along the circumference of the tensile plate 4.

[0051] For the non-lifting tensile bearing of this embodiment, the tensile block and the piston are in spherical cooperation, meeting the non-lifting rotation function of the bearing. There is only an assembly gap left vertically for the bearing, and no rotation gap is preset. When the beam body is lifted, there is no vertical displacement of the bearing. The lower rotation function and the upper translational function of the bearing are separately set and do not affect each other.

[0052] Embodiment 2

[0053] This embodiment provides a non-lifting tensile bearing. The difference from Embodiment 1 is that, as Figure 6As shown, the relative surface between the first limiting protrusion 31 and the second limiting protrusion 43 is a flat surface, and an elastic body 32 is provided between the first limiting protrusion 31 and the second limiting protrusion 43. Through the deformation of the elastic body 32, it is possible to better adapt to the rotation of the piston 3 on the spherical crown liner 6 in the bottom basin assembly 8 without affecting the limitation of the lower end of the piston 3 by the tensile plate 4. Among them, the elastic body can be made of materials such as rubber or polyurethane.

[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A non-lift tensile support, characterized in that: It comprises an upper support plate assembly (1), a piston (3) and a bottom basin assembly (8), wherein the upper support plate assembly (1) is provided with an upper anchoring steel rod (12), and the bottom basin assembly (8) is provided with a lower anchoring steel rod (9); The upper support plate assembly (1) comprises an upper support plate, and L-shaped limit plates (11) are provided on two opposite sides below the upper support plate, a limit groove is formed between the L-shaped limit plate (11) and the upper support plate, and the limit groove openings on the two sides are arranged opposite to each other; A limiting protrusion is provided at the upper end of the piston (3) corresponding to the limiting groove, the limiting protrusion is located in the corresponding limiting groove, and the limiting protrusion can slide in the limiting groove. A wear-resistant plate (2) is provided on the top surface of the piston (3), and the wear-resistant plate (2) is located between the piston (3) and the upper support plate; The lower end of the piston (3) is located in the bottom basin assembly (8), and a first limiting protrusion (31) is provided on the outer side of the lower end of the piston (3). A wear-resistant plate 2 (5), a spherical crown lining plate (6) and a wear-resistant plate 3 (7) are sequentially arranged from top to bottom between the piston (3) and the bottom basin assembly (8). The bottom surface of the piston (3) has a spherical surface. The top and bottom surfaces of the wear-resistant plate 2 (5) are both spherical surfaces. The top surface of the spherical crown lining plate (6) is a spherical surface and the bottom surface is a plane. The spherical surface of the bottom surface of the piston (3), the spherical surfaces of the top and bottom surfaces of the wear-resistant plate 2 (5) and the spherical surface of the top surface of the spherical crown lining plate (6) are adapted to each other. The wear-resistant plate 3 (7) is adapted to the plane of the bottom surface of the spherical crown lining plate (6); The bottom basin assembly (8) has a basin wall (81), an annular tensile plate (4) is fixedly provided above the basin wall (81), a second limiting protrusion (43) is provided on the inner side of the tensile plate (4), a spacing is provided between the second limiting protrusion (43) and the piston (3) in the horizontal direction, the first limiting protrusion (31) and the second limiting protrusion (43) are both annular, and the second limiting protrusion (43) limits the first limiting protrusion (31) from moving upward.

2. The non-lift tensile bearing according to claim 1, characterized in that: There is spherical matching contact between the first limiting protrusion (31) and the second limiting protrusion (43), and the spherical surface of the first limiting protrusion (31) matches the spherical surface of the bottom surface of the piston (3).

3. The non-lift tensile bearing according to claim 1, characterized in that: A friction pair is provided between the contact surfaces of the first limiting protrusion (31) and the second limiting protrusion (43), and the friction pair comprises friction plates (44) respectively provided below the first limiting protrusion (31) and above the second limiting protrusion (43).

4. The non-lift tensile bearing according to claim 3, characterized in that: The tensile plate (4) is a steel structure, the friction plate (44) is a steel structure, and the friction plate (44) is welded to the second limiting protrusion (43) of the tensile plate (4).

5. The non-lift tensile bearing according to claim 3, characterized in that: The tensile plate (4) is a steel structure, the friction plate (44) is a polymer material structure, and the friction plate (44) is embedded in the second limiting protrusion (43) of the tensile plate (4).

6. The non-lift tensile bearing according to claim 1, characterized in that: The opposing surface between the first limiting protrusion (31) and the second limiting protrusion (43) is a plane, and an elastic body (32) is provided between the first limiting protrusion (31) and the second limiting protrusion (43).

7. The non-lift tensile bearing according to any one of claims 1 to 6, characterized in that: The first limiting protrusion (31) is in contact with the basin wall (81), the basin wall (81) is a cylindrical surface, and the surface of the first limiting protrusion (31) in contact with the basin wall (81) is a spherical surface.

8. The non-lift tensile bearing according to any one of claims 1 to 6, characterized in that: The tensile plate (4) comprises semi-annular plates (41) which are arranged opposite to each other.

9. The non-lift tensile bearing according to claim 8, characterized in that: The tensile plate (4) is connected to the basin wall (81) via bolts (42).

10. The non-lift tensile bearing according to claim 9, characterized in that: The bolts (42) are arranged on the tensile plate (4) at intervals and evenly along the circumferential direction.

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