Full life bridge support

Abstract

The application discloses a full-life bridge support, which comprises a spherical hinge mechanism and two groups of roller shaft mechanisms; the spherical hinge mechanism is mainly composed of a top plate, a bottom plate and a ball, the top plate is in metal spherical surface contact with the upper half of the ball through the inner concave cavity at the bottom of the top swing, and the bottom plate is in metal spherical surface contact with the lower half of the ball through the inner concave cavity at the top of the bottom swing; the top plate and the bottom plate are kept in a relative parallel state, and the bottom edge surface of the top swing is in annular gap cooperation with the top edge surface of the bottom swing; the two groups of roller shaft mechanisms are arranged on the top side and / or the bottom side of the spherical hinge mechanism, and the rolling directions of the two groups of roller shaft mechanisms correspond to the longitudinal direction and the transverse direction of the bridge. The application can realize the composite functions of multidirectional rotation and longitudinal and transverse translation, has good bearing performance, can meet the technical requirements of timely adjustment of the expansion displacement of large bridges in the longitudinal and / or transverse directions and the change of the live load borne by different regions of the beam body, and is beneficial to the same service life as the bridge.

Description

Technical Field

[0001] This invention relates to a support structure for supporting bridge beams on piers, specifically a full-life bridge support. Background Technology

[0002] In bridge structures, bearings are important supporting components arranged between the superstructure and substructure of the bridge. While supporting the beam on the pier, they also need to adapt to the working conditions such as thermal expansion and contraction of the beam and changes in the live load it bears.

[0003] In order to adapt to the working conditions such as thermal expansion and contraction of the bridge beam and changes in the live load it bears, bridge bearings need to have a certain rotation function. Common bearing types that meet this function include pivot bearings and ball joint bearings.

[0004] Common pivot bearings such as Figure 11 As shown, it mainly consists of a top plate 41 (or upper support plate), a bottom plate 43 (or lower support plate), and a hinge shaft 45. The upper swing 42 at the bottom of the top plate 41 and the lower swing 44 at the top of the bottom plate 43 are connected in series along the axial direction of the hinge shaft 45, and are hinged together by the hinge shaft 45. The top plate 41 is directly or indirectly connected to the supported beam, and the bottom plate 43 is directly or indirectly connected to the corresponding pier. This support structure can only achieve radial rotation around the hinge shaft, and cannot achieve rotational movements in other directions, including the axial direction around the hinge shaft, nor can it perform longitudinal or lateral translational movements. It cannot meet the requirements of large bridges for adapting to rotational movements under conditions such as longitudinal and lateral expansion and contraction displacements, and changes in live loads in different areas of the beam.

[0005] Common ball joint bearings include those disclosed in Chinese patent literature as "A Relay Pushing Device for a Bridge Rotating Steel Ball Joint" (Publication No. CN 213896782 U, Publication Date August 6, 2021). This type of technology mainly consists of a top seat, a middle seat, a base, and steel balls. The steel balls are fixedly connected to the bottom of the top seat, which is directly or indirectly connected to the supported beam. The bottom of the middle seat is situated within the cavity of the base with a unidirectional sliding structure. The top of the middle seat has a cavity for matching the steel balls. The base is directly or indirectly connected to the corresponding pier. The steel balls connected to the top seat are embedded in the cavity of the middle seat, thus enabling a multi-directional rotating ball joint between the top seat and the middle seat, and a unidirectional sliding joint between the middle seat and the base. This type of technology can not only achieve multi-directional rotational movement centered on the ball joint, but also longitudinal or lateral translational movement, thus meeting the requirements for adapting to the longitudinal or lateral expansion and contraction displacement of bridges, as well as the changing live loads in different areas of the beam. However, this type of technology has the following main technical problems:

[0006] 1. There are essentially two forming techniques for the steel ball at the bottom of the top seat;

[0007] Firstly, the steel ball is connected to the bottom of the top seat in a combined connection structure or a welding structure, which inevitably leads to weak structural strength at the connection between the steel ball and the top seat, and limited bearing capacity;

[0008] Secondly, the steel ball is integrally formed on the bottom of the top seat, which directly affects the machining precision and heat treatment quality between the top seat and the steel ball, leading to large machining difficulty and low forming quality;

[0009] 2. The ball hinge cooperation between the steel ball connected by the middle seat and the top seat is achieved by the inner concave cavity on the middle seat surrounding most of the outer periphery of the steel ball, which is obviously not conducive to the overall assembly between the top seat and the middle seat. If the split assembly is adopted, especially the assembly of multiple parts around the middle seat, the structural strength will be low, which directly affects the bearing capacity;

[0010] If the overall assembly between the top seat and the middle seat is to be achieved, the surrounding of the inner concave cavity on the middle seat to the outer periphery of the steel ball must be reduced, which will increase the cooperation space between the top seat and the middle seat, and between the neck part of the steel ball (i.e. the connection between the steel ball and the top seat) and the middle seat, leading to the loss of the relative limiting function of the middle seat to the top seat cooperated by the ball hinge, so that another limiting structure is needed between the middle seat and the top seat to constrain the rotation amplitude of the ball hinge. Obviously, this increases the forming technical difficulty of the whole support, and also affects the bearing capacity;

[0011] 3. Under the influence of other limiting structures or the limiting structure between the neck part of the steel ball and the middle seat, high-precision centering assembly is needed between the steel ball at the bottom of the top seat and the inner concave cavity on the middle seat, leading to increased assembly technical difficulty;

[0012] 4. The one-way translation sliding of the middle seat on the base is usually achieved by a high-molecular four-fluorine sliding pair (i.e. four-fluorine plate-stainless steel plate). Based on the relatively limited service life of the four-fluorine plate, it is difficult to serve for the whole life of the bridge, and needs to be maintained and replaced many times, which has high maintenance cost and greater economic loss caused by traffic interruption during the maintenance process.

[0013] Therefore, the above-mentioned ball hinge type support is difficult to meet the technical requirements of the working condition environment of large bridges, especially difficult to bear large live load changes, and difficult to stably realize longitudinal and lateral translation movements. SUMMARY

[0014] The technical purpose of the present application is to provide a full-life bridge support with simple structure, good bearing capacity, capable of realizing multi-directional rotation movement and longitudinal and / or lateral translation movement, and conducive to the same life service as the bridge, in view of the particularity of the working condition environment of the bridge, especially the beam of large bridge, affected by thermal expansion and contraction, live load changes, etc., and the technical deficiencies of the existing rotating function support.

[0015] The technical purpose of the present application is achieved by the technical solution described below, a full-life bridge support, the support comprising a spherical hinge mechanism and two groups of roller shaft mechanisms;

[0016] The spherical hinge mechanism is mainly composed of a top plate, a bottom plate and a ball, the top plate is in metal spherical surface contact with the upper half of the ball through the inner concave cavity at the bottom of the upper swing, and the bottom plate is in metal spherical surface contact with the lower half of the ball through the inner concave cavity at the top of the lower swing; the top plate and the bottom plate are kept in a relative parallel state, and the bottom edge surface of the upper swing is matched with the top edge surface of the lower swing with a circumferential gap;

[0017] The two groups of roller shaft mechanisms are stacked and arranged on the bottom side of the spherical hinge mechanism, the bearing plate of the lower roller shaft mechanism is directly or indirectly connected with the corresponding pier, the bearing plate of the upper roller shaft mechanism is seated on the roller shaft row group of the lower roller shaft mechanism in metal contact, the rolling directions of the upper roller shaft mechanism and the lower roller shaft mechanism correspond to the longitudinal direction and the transverse direction of the bridge, the bottom plate of the spherical hinge mechanism is seated on the roller shaft row group of the upper roller shaft mechanism in metal contact, and the top plate of the spherical hinge mechanism is directly or indirectly connected with the supported beam body;

[0018] Alternatively, the two groups of roller shaft mechanisms are separately arranged on the top side and the bottom side of the spherical hinge mechanism, the bearing plate of the lower roller shaft mechanism is directly or indirectly connected with the corresponding pier, the bottom plate of the spherical hinge mechanism is seated on the roller shaft row group of the lower roller shaft mechanism in metal contact, the roller shaft row group of the upper roller shaft mechanism is seated on the top plate of the spherical hinge mechanism in metal contact, the bearing plate of the upper roller shaft mechanism is directly or indirectly connected with the supported beam body, and the rolling directions of the upper roller shaft mechanism and the lower roller shaft mechanism correspond to the longitudinal direction and the transverse direction of the bridge;

[0019] Alternatively, the two groups of roller shaft mechanisms are stacked and arranged on the top side of the spherical hinge mechanism, the bottom plate of the spherical hinge mechanism is directly or indirectly connected with the corresponding pier, the roller shaft row group of the lower roller shaft mechanism is seated on the top plate of the spherical hinge mechanism in metal contact, the roller shaft row group of the upper roller shaft mechanism is seated on the bearing plate of the lower roller shaft mechanism in metal contact, the bearing plate of the upper roller shaft mechanism is directly or indirectly connected with the corresponding pier, and the rolling directions of the upper roller shaft mechanism and the lower roller shaft mechanism correspond to the longitudinal direction and the transverse direction of the bridge.

[0020] The ball hinge mechanism and the two sets of roller shaft mechanisms are combined to form the bridge support. In the bridge support, the ball hinge mechanism is responsible for multi-directional rotation around the ball hinge, and the two sets of roller shaft mechanisms with different rolling directions are responsible for longitudinal and transverse translation of the bridge, so as to realize the composite function of multi-directional rotation and longitudinal and transverse translation, and meet the technical requirements of the rotation of the bridge in the longitudinal and / or transverse directions, the expansion and contraction displacement of the bridge, and the load changes of different regions of the bridge.

[0021] In the above technical measures, the ball hinge mechanism connects the top plate (or upper seat plate) and the bottom plate (or lower seat plate) through an independent ball, which not only enables flexible multi-directional rotation of the top plate and the bottom plate around the ball, but also has the following main technical advantages compared with the fixed connection structure of the ball on the top plate / bottom plate:

[0022] 1. The independent ball facilitates the precision machining, forming and heat treatment forming of the top plate, the ball and the bottom plate, and the machining technology is difficult, and the forming quality is high.

[0023] 2. When the high-quality formed top plate, ball and bottom plate are assembled from top to bottom, the upper swing and the lower swing only form embedding and surrounding to a relatively small part of the ball, and do not pass the diameter of the ball (or the lateral waist of the ball), and only through the adjustment between the flexible and adjustable single ball crown matching surfaces to realize the matching, without considering the technical problem of centering assembly between the ball and the inner concave cavity of the upper swing / lower swing, the assembly technology difficulty between the top plate, the ball and the bottom plate is small, and the overall assembly can be easily, flexibly and reliably realized.

[0024] 3. In the overall structure of the assembled and formed, there is no weak connection part between the ball and the top plate / bottom plate, the overall structural strength is high, and the bearing performance is good.

[0025] 4. In the non-rotation state, the bottom edge surface of the upper swing and the top edge surface of the lower swing form an upper and lower gap matching outside the ball.

[0026] In the rotation state, the bottom edge surface of the upper swing and the top edge surface of the lower swing automatically form a limit at the outer periphery of the ball due to abutment, constrain the rotation amplitude of the ball hinge, do not need to additionally increase the limiting structure, the overall structure is simple, the forming technology is difficult, and it is also beneficial to improve the bearing performance.

[0027] In the above technical measures, the two groups of roller shaft mechanisms are arranged on the same side (top side or bottom side) or both sides of the spherical hinge mechanism, and different rolling directions are formed, so that the corresponding bridge longitudinal and / or transverse horizontal movement can be flexibly, smoothly, reliably and accurately realized, and the carrying performance is good. At the same time, based on the ability to flexibly, smoothly, reliably and accurately realize the corresponding bridge longitudinal and / or transverse horizontal movement, the metal contact between the spherical hinge mechanism and the roller shaft mechanism, and between the two groups of roller shaft mechanisms, can be realized, and the service life of the rubber, high polymer material and the like is relatively limited, specifically, the component structure of the spherical hinge mechanism and the roller shaft mechanism is a metal structure without containing rubber material and high polymer material; the upper swing or the lower swing of the spherical hinge mechanism is matched with the spherical surface contact surface of the ball; the top plate or the bottom plate of the spherical hinge mechanism is matched with the roller shaft row group contacted in a metal (preferably steel metal) line contact; the roller shaft row group of the roller shaft mechanism is matched with the bearing plate in a metal (preferably steel metal) line contact. The technical measures are beneficial to the long-term service with the same service life as the bridge, reduce or even avoid maintenance, and are beneficial to the maintenance cost control and social benefit improvement.

[0028] In summary, the bridge support formed by the above technical measures can stably and reliably realize the corresponding bridge longitudinal and / or transverse horizontal movement, flexibly and reliably realize the constrained multi-directional rotation movement, be beneficial to the long-term service with the same service life as the bridge, reliably carry large live load changes, and effectively meet the working condition technical requirements of large bridges, so that the economic benefit is remarkable.

[0029] As one of the preferred schemes, the bottom edge surface of the upper swing is a conical structure with an inner side bottom and an outer side high;

[0030] The top edge surface of the lower swing is a conical structure with an inner side high and an outer side low;

[0031] The top plate and the bottom plate of the spherical hinge mechanism are matched with the bottom edge surface and the top edge surface between the upper swing and the lower swing in a face contact manner when the top plate and the bottom plate of the spherical hinge mechanism are rotated to the maximum stroke around the ball as the center.

[0032] And, when the top plate and the bottom plate of the spherical hinge mechanism are rotated to the maximum stroke around the ball as the center, the bottom edge surface and the top edge surface corresponding to the side where the top plate and the bottom plate are close to each other are matched in a face contact manner.

[0033] The above technical measures, in a non-rotation state, the bottom edge surface of the upper swing and the top edge surface of the lower swing form a gap cooperation at the outer periphery of the ball; in a rotation state, the bottom edge surface of the upper swing and the top edge surface of the lower swing automatically form a face contact abutment at the outer periphery of the ball, so that the rotation amplitude of the spherical hinge is stably and reliably constrained, the overall structure is simple, the rotation is stable, and the carrying performance is good.

[0034] As one of the preferred solutions, the ball is a metal ball of a whole round structure, preferably a steel ball; this technical measure has a simple structure and is easy to form with high quality. Alternatively, the ball is a metal ball crown of a non-round structure composed of an upper spherical crown surface and a lower spherical crown surface, preferably a steel ball crown; this technical measure is actually to combine two upper and lower hemispheres together, which has the characteristics of low height, small volume, and material saving compared with the whole round ball, but in the combination process of the upper and lower spherical crown surfaces, the degree of centering between the ball tops needs to be strictly controlled, and as long as a high-quality spherical crown body is formed, it does not affect the assembly between the top plate and the bottom plate.

[0035] As one of the preferred solutions, the roller shaft mechanism mainly consists of a bearing plate and a plurality of roller shafts, which are arranged side by side on one side of the bearing plate in a synchronous linkage structure along the set rolling direction. The roller shaft mechanism can smoothly, reliably and accurately realize the translational movement corresponding to the longitudinal or transverse direction of the bridge, and has good bearing performance.

[0036] Further, the bearing plate is provided with end stops protruding and formed on the side where the roller shafts are located at both ends corresponding to the set rolling direction;

[0037] The maximum rolling stroke of the roller shaft group between the two end stops corresponds to the limit displacement amount of the supported beam body in the corresponding direction.

[0038] The above technical measure can effectively limit the stroke of the roller shaft group displaced in the set rolling direction, prevent the roller shaft group from excessively rolling on the bearing plate, and ensure the safety of the bridge.

[0039] Further, the bearing plate is provided with side stops protruding and formed on the side where the roller shafts are located at both sides corresponding to the set rolling direction;

[0040] The corresponding shaft ends of the two side stops and the roller shaft group are respectively gap-fitted, and the distance between the two side stops allows the roller shaft group on the bearing plate to freely roll in the set rolling direction.

[0041] The above technical measure can block and limit the two sides of the roller shaft group displaced in the set rolling direction without affecting the free rolling displacement of the roller shaft group, thereby preventing the roller shaft group from being separated from the bearing plate and ensuring the safety of the bridge.

[0042] Further, the plurality of roller shafts of the roller shaft mechanism are connected in series through linkage plates connected at the axial ends in the set rolling direction to form an integrally linked roller shaft group;

[0043] The width of the linkage plate is less than the maximum diameter of the roller shaft and greater than the end shaft diameter of the corresponding end portion of the roller shaft, and the roller shaft connects the linkage plate through the end shaft of the corresponding end portion.

[0044] The roller shaft mechanism has simple structure and good linkage and stable rolling.

[0045] As one of the preferred solutions, the roller shaft mechanism is arranged in the top plate structure of the spherical hinge mechanism through a roller shaft row group, the top plate of the spherical hinge mechanism is provided with end stops protruding to one side of the roller shaft at both ends corresponding to the set rolling direction, the maximum rolling stroke of the roller shaft row group is allowed between the two end stops, and the limit displacement amount of the supported beam body in the corresponding direction is allowed; the top plate of the spherical hinge mechanism is provided with side stops protruding to one side of the roller shaft at both sides corresponding to the set rolling direction, the corresponding shaft ends of the roller shaft row group are respectively gap-fitted between the two side stops, and the distance between the two side stops allows the roller shaft row group on the bearing plate to freely roll in the set rolling direction.

[0046] The above technical measures combine the special arrangement of the roller shaft mechanism on the side of the top plate of the spherical hinge mechanism and the technical requirement that the top plate of the spherical hinge mechanism and the roller shaft mechanism are linearly contacted and matched to realize rolling displacement, so that the top plate of the spherical hinge mechanism actually bears the bearing plate close to the roller shaft mechanism, thereby blocking and limiting the roller shaft row group arranged thereon at both ends and both sides in the rolling direction, and the safety of the bridge is ensured.

[0047] As one of the preferred solutions, the inner recess cavity of the upper swing is communicated with the oil cup through the oil supply channel. This technical measure can provide lubricating oil to the inner recess cavity of the upper swing through the oil cup to ensure that the spherical hinge structure is flexible, stable and long-acting. The lubricating oil entering the inner recess cavity of the upper swing will flow into the inner recess cavity of the lower swing along the ball and the rotating action, and it is not necessary to separately provide a lubricating structure at the inner recess cavity of the lower swing.

[0048] The beneficial technical effects of the present application are that the above technical measures are aimed at the particularity of the beam body of the bridge, especially a large bridge, which is affected by the working conditions such as thermal expansion and cold contraction and live load changes, and form a bridge support combined by a spherical hinge mechanism and two groups of roller shaft mechanisms. In the bridge support, the spherical hinge mechanism bears the function of multi-directional rotating motion centered on the spherical hinge, and the two groups of roller shaft mechanisms with different rolling directions bear the functions corresponding to the longitudinal and transverse translation motions of the bridge, thereby realizing the composite function of multi-directional rotation and longitudinal and transverse translation, reliably bearing large live load changes, meeting the technical requirements of adaptive rotation under the working conditions such as the expansion and contraction displacement of the beam body in the longitudinal and / or transverse directions and the live load changes borne by different regions of the beam body, and being conducive to long-term service with the same service life as the bridge, and the economic benefits are significant. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 It is a structural schematic diagram of the present application.

[0050] Figure 2 It is Figure 1Vertical sectional view at the center of the figure.

[0051] Figure 3 As Figure 1 Another angle vertical sectional view at the center of the figure.

[0052] Figure 4 As Figure 1 , Figure 2 and Figure 3 Structure diagram of the ball hinge mechanism in the figure.

[0053] Figure 5 As Figure 4 Partial enlarged view of the figure.

[0054] Figure 6 As Figure 5 Structure diagram of the ball in the figure.

[0055] Figure 7 Another structure diagram of the present application.

[0056] Figure 8 Still another structure diagram of the present application.

[0057] Figure 9 As Figure 8 Structure diagram of the ball hinge mechanism in the figure.

[0058] Figure 10 As Figure 9 Structure diagram of the ball in the figure.

[0059] Figure 11 Structure diagram of the existing rotating shaft support.

[0060] Code meaning in the figure: 1 - ball hinge mechanism; 11 - top plate; 12 - upper swing; 13 - bottom surface; 14 - bottom plate; 15 - lower swing; 16 - top surface; 17 - ball; 18 - oil cup;

[0061] 2 - upper layer roller shaft mechanism; 21 - bearing plate one; 22 - roller shaft one; 23 - end shaft one; 24 - linkage plate one; 25 - side stop one; 26 - end stop one;

[0062] 3 - lower layer roller shaft mechanism; 31 - bearing plate two; 32 - roller shaft two; 33 - end shaft two; 34 - linkage plate two; 35 - side stop two; 36 - end stop two;

[0063] 41 - top plate; 42 - upper swing; 43 - bottom plate; 44 - lower swing; 45 - hinge shaft. DETAILED DESCRIPTION

[0064] The present application relates to the support structure of the beam body of a bridge supported on a pier, and particularly relates to a full-life bridge support. Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 clearly and specifically explain the technical solution content of the present application; the embodiment 2 combines the drawings of the specification, i.e. Figure 7 clearly and specifically explain the technical solution content of the present application; the embodiment 3 combines the drawings of the specification, i.e. Figure 8 、 Figure 9 and Figure 10 clearly and specifically explain the technical solution content of the present application; the other embodiments, although not separately drawn, still can refer to the drawings of the embodiment 1, the embodiment 2 and the embodiment 3.

[0065] It should be particularly noted that the drawings of the present application are schematic, and unnecessary details have been simplified in order to clearly show the technical purpose of the present application, so as to avoid obscuring the technical solution of the present application contributed to the prior art.

[0066] Embodiment 1

[0067] As shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 , the present application comprises a spherical hinge mechanism 1, an upper roller shaft mechanism 2 and a lower roller shaft mechanism 3.

[0068] The spherical hinge mechanism 1 mainly comprises a top plate 11, a bottom plate 14 and a spherical body 17.

[0069] The top plate 11 is an upper seat plate directly or indirectly connected with the beam body, and a plurality of anchor bolts extending upward from the top surface side are connected to the top plate 11.

[0070] The bottom surface side of the top plate 11 is connected with an upper swing 12 extending downward. The upper swing 12 is usually composed of a plurality of rib plates arranged in a cross shape / marubatsu shape (preferably) and an upper hemispherical shell. Each rib plate is arranged vertically, and the width of the top is greater than the width of the bottom. The plurality of rib plates arranged in a cross shape / marubatsu shape form a conical structure with the top greater than the bottom. The outer side of the upper hemispherical shell is connected to the bottom of the plurality of rib plates, and an inner concave cavity is formed at the bottom of the plurality of rib plates. The curvature of the inner concave cavity of the upper hemispherical shell matches the outer peripheral curvature of the spherical body 17 described below, but the depth of the inner concave cavity of the upper hemispherical shell is less than the radius of the spherical body 17 described below, so that only the upper half (most of the upper half) of the spherical body 17 described below can be accommodated.

[0071] That is, the top plate 11 is able to form a spherical surface contact fit with the upper half of the following ball 17 through the inner concave cavity at the bottom of the upper swing 12.

[0072] The bottom plate 14 is a support plate that is able to slide fit with the roller shaft mechanism, and the bottom surface side thereof is smooth and flat.

[0073] The top surface side of the bottom plate 14 is connected with a downward extending shaped lower swing 15. The lower swing 15 is generally composed of a plurality of rib plates and a lower hemisphere shell that are arranged in a cross / marathon shape (preferably) around a circle. Each rib plate is arranged vertically, and the width of the bottom is greater than the width of the top, and the plurality of rib plates arranged in a cross / marathon shape surround a conical structure with a bottom greater than a top. The outer side of the lower hemisphere shell is connected to the top of the plurality of rib plates, and an inner concave cavity is formed at the top of the plurality of rib plates, and the curvature of the inner concave cavity of the lower hemisphere shell matches the outer peripheral curvature of the following ball 17, but the depth of the inner concave cavity of the lower hemisphere shell is less than the radius of the following ball 17, so that only the lower half (most of the lower half) of the following ball 17 can be accommodated.

[0074] That is, the bottom plate 14 is able to form a spherical surface contact fit with the lower half of the following ball 17 through the inner concave cavity at the top of the lower swing 15.

[0075] As the most preferred consideration, the upper swing 12 at the bottom of the top plate 11 and the lower swing 15 at the top of the bottom plate 14 are preferably formed in an up-down symmetrical structure. Moreover, when the bottom edge surface 13 at the bottom of the upper swing 12, i.e., the edge surface of the upper hemisphere shell, and the top edge surface 16 at the top of the lower swing 15, i.e., the edge surface of the lower hemisphere shell, form a contact fit with substantially no gap around the circle, the top plate 11 and the bottom plate 14 are substantially in an up-down opposite parallel fit state.

[0076] In order to adapt to the rotating action of the composed spherical hinge mechanism 1, the bottom edge surface 13 of the upper swing 12 is a conical structure with the inner side bottom and the outer side high, and the top edge surface 16 of the lower swing 15 is a conical structure with the inner side high and the outer side low. When the bottom edge surface 13 of the upper swing 12 and the top edge surface 16 of the lower swing 15 form a contact fit with substantially no gap around the circle, the included angle between the bottom edge surface 13 and the top edge surface 16 is not less than 2 radians (usually not more than 10 radians).

[0077] The ball 17 is a solid steel ball with a whole circular structure.

[0078] The upper half of the ball 17 is embedded in the inner concave cavity at the bottom of the above-mentioned upper swing 12, and forms a smooth spherical surface fit with the inner concave cavity of the upper swing 12, and the bottom edge surface 13 of the upper swing 12 is substantially at the maximum diameter of the ball 17, i.e., near the waist. The lower half of the ball 17 is embedded in the inner concave cavity at the top of the above-mentioned lower swing 15, and forms a smooth spherical surface fit with the inner concave cavity of the lower swing 15, and the top edge surface 16 of the lower swing 12 is substantially at the maximum diameter of the ball 17, i.e., near the waist.

[0079] In the case that the top plate 11 and the bottom plate 14 keep a substantially relative parallel state, the bottom edge surface 13 of the upper swing 12 and the top edge surface 16 of the lower swing 15 form a substantially equal gap fit around the waist of the sphere 17. The height of the gap fit is matched to the corresponding distance of the angle of the inclined surface fit between the bottom edge surface 13 and the top edge surface 16 (for example, 2 radian) to 0 (i.e. the angle of the inclined surface fit is eliminated by the combination of the bottom edge surface 13 and the top edge surface 16).

[0080] That is, in the case that the top plate 11 and the bottom plate 14 of the spherical hinge mechanism 1 keep a substantially relative parallel state, the bottom edge surface 13 of the upper swing 12 and the top edge surface 16 of the lower swing 15 are fitted at an angle of ≥ 2 radian (usually selected in the range of 2-10 radian according to the specific bridge design requirements). When the top plate 11 and the bottom plate 14 of the spherical hinge mechanism 1 rotate to the maximum stroke around the sphere 17, the bottom edge surface 13 and the top edge surface 16 on the side where the top plate 11 and the bottom plate 14 approach each other are substantially formed by a surface contact fit.

[0081] In order to ensure the smooth and long-term spherical hinge fit of the spherical hinge mechanism 1, the inner concave cavity of the upper swing 12 is communicated with the oil cup 18 through the oil supply channel, and the lubricating oil is delivered from the oil cup 18 to the inner concave cavity of the upper swing 12. Under the rotation of the sphere 17, the lubricating oil will also enter the inner concave cavity of the lower swing 15. Usually, the oil cup 18 is connected to the outside of the upper half spherical shell, and the oil supply channel is provided on the upper half spherical shell. The oil discharge channel is provided at the bottom of the lower half spherical shell to prevent the accumulation of lubricating oil in the inner concave cavity of the lower swing 15.

[0082] The upper roller shaft mechanism 2 and the lower roller shaft mechanism 3 are stacked and arranged on the bottom side of the spherical hinge mechanism 1.

[0083] Specifically, the lower roller shaft mechanism 3 mainly consists of a bearing plate two 31 and a plurality of roller shafts two 32.

[0084] The length and width of the bearing plate two 31 are substantially greater than the bottom plate 14 of the spherical hinge mechanism 1, and the top surface of the bearing plate two 31 is smooth and flat. The bearing plate two 31 is a lower seat plate directly or indirectly connected to the pier, and a plurality of anchor bolts extending upward from the bottom surface are connected thereto.

[0085] Each roller shaft two 32 has a two-side edge-cut structure, and the end surface outer contour is similar to a rectangular structure. Of course, in order to realize the rolling displacement function in the overall structure of the support, the top profile and the bottom profile of the roller shaft two 32 are respectively outwardly convexly arched into an arc profile. The two ends of each roller shaft two 32 respectively have an outwardly extending end shaft two 33, and the top profile and the bottom profile of the roller shaft two 32 are both on a virtual circle with the axis of the end shaft two 33 as the center.

[0086] All the roller shafts two 32 have substantially consistent structures.

[0087] The plurality of roller shafts two 32 are arranged side by side along the set rolling direction, and their two ends are connected to the corresponding linkage plates two 34 through the respective end shafts two 33. The width of the linkage plates two 34 is smaller than the maximum diameter of the roller shafts two 32, but larger than the diameter of the end shafts two 33 corresponding to the end portions of the roller shafts two 32. That is, the plurality of roller shafts two 32 are connected in series through the linkage plates two 34 connected to the two axial ends respectively in the set rolling direction, to form the roller shaft row group of the overall synchronous linkage structure.

[0088] The roller shaft row group of the lower roller shaft mechanism 3 is arranged in a rollable manner on the top surface side of the bearing plate two 31.

[0089] In order to constrain the rolling stroke of the roller shaft row group on the bearing plate two 31 and ensure safety, the bearing plate two 31 is respectively provided with end stops two 36 protruding and formed towards the side (i.e. the top surface) where the roller shaft row group is located at the two ends corresponding to the set rolling direction. The bearing plate two 31 is respectively provided with side stops two 35 protruding and formed towards the side where the roller shaft row group is located at the two sides corresponding to the set rolling direction.

[0090] The clearance distance between the two end stops two 36 on the bearing plate two 31 is basically the sum of the length of the roller shaft row group in series and the maximum translational stroke of the beam body in the corresponding direction allowed in the design of the bridge, i.e. the clearance distance between the two end stops two 36 = the length of the roller shaft row group + the limit stroke of the beam body in the corresponding direction (e.g. longitudinal / transverse direction) allowed to translate. That is, the maximum rolling stroke of the roller shaft row group allowed between the two end stops two 36 corresponds to the limit displacement amount of the supported beam body in the corresponding direction allowed to translate.

[0091] The clearance distance between the two side stops two 35 on the bearing plate two 31 is basically the sum of the axial width of the roller shaft row group and the free rolling gap of the roller shaft row group, i.e. the clearance distance between the two side stops two 35 = the axial width of the roller shaft row group + the free rolling gap of the roller shaft row group. That is, the corresponding axial ends of the roller shaft row group and the two side stops two 35 are respectively fitted with a gap, and the distance between the two side stops two 35 allows the roller shaft row group on the bearing plate two 31 to freely roll in the set rolling direction.

[0092] The upper roller shaft mechanism 2 mainly consists of a bearing plate one 21 and a plurality of roller shafts one 22.

[0093] The length and width of the bearing plate one 21 are basically larger than the bottom plate 14 of the spherical hinge mechanism 1 and basically correspond to the bearing plate two 31 of the lower roller shaft mechanism 3. The top surface of the bearing plate one 21 is smooth and flat, and the bottom surface of the bearing plate one 21 is smooth and flat.

[0094] Each roller shaft 22 is of a two-side chamfered structure, and the outer profile of the end face is similar to a rectangular structure. Of course, in order to realize the rolling displacement function in the overall structure of the support, the top profile and the bottom profile of the roller shaft 22 are respectively outwardly convexly arched arc profiles. Each roller shaft 22 has an outwardly extending end shaft 23 at each end, and the top profile and the bottom profile of the roller shaft 22 are both on a virtual circle with the axis of the end shaft 23 as the center.

[0095] All the roller shafts 22 are basically the same in structure.

[0096] The plurality of roller shafts 22 are arranged side by side along the set rolling direction, and the two ends thereof are connected to the corresponding linkage plate 24 through the respective end shaft 23. The width of the linkage plate 24 is smaller than the maximum diameter of the roller shaft 22, but larger than the diameter of the end shaft 23 of the corresponding end of the roller shaft 22. That is, the plurality of roller shafts 22 are connected in series through the linkage plate 24 connected to the axial two ends in the set rolling direction, and form a roller shaft row group of the overall synchronous linkage structure.

[0097] The roller shaft row group of the upper roller shaft mechanism 2 described above is arranged in a rollable manner on the top surface side of the bearing plate 21.

[0098] In order to constrain the rolling stroke of the roller shaft row group on the bearing plate 21 and ensure safety, the bearing plate 21 is respectively provided with an end stop 26 protruding and formed towards the side (i.e. the top surface) where the roller shaft row group is located at the two ends corresponding to the set rolling direction. The bearing plate 21 is respectively provided with a side stop 25 protruding and formed towards the side where the roller shaft row group is located at the two sides corresponding to the set rolling direction.

[0099] The clearance distance between the two end stops 26 on the bearing plate 21 described above is basically the sum of the length of the roller shaft row group and the maximum translational stroke of the beam body in the corresponding direction allowed in the design of the bridge, that is, the clearance distance between the two end stops 26 = the length of the roller shaft row group + the limit stroke of the beam body in the corresponding direction (e.g. longitudinal / transverse) allowed to translate. That is, the maximum rolling stroke of the roller shaft row group allowed between the two end stops 26 corresponds to the limit displacement amount of the supported beam body allowed to translate in the corresponding direction.

[0100] The clearance distance between the two side stops 25 on the bearing plate 21 described above is basically the sum of the axial width of the roller shaft row group and the free rolling gap of the roller shaft row group, that is, the clearance distance between the two side stops 25 = the axial width of the roller shaft row group + the free rolling gap of the roller shaft row group. That is, the two side stops 25 and the corresponding shaft ends of the roller shaft row group are respectively gap-fitted, and the distance between the two side stops 25 allows the roller shaft row group on the bearing plate 21 to freely roll in the set rolling direction.

[0101] As described above, the lower roller mechanism 3 is connected to the corresponding pier, and the upper roller mechanism 2 is arranged on the roller row group of the lower roller mechanism 3 through the bearing plate 21, forming a stacked arrangement, and the bottom surface of the bearing plate 21 is in linear contact with the roller row group of the lower roller mechanism 3. In the stacked arrangement of the upper roller mechanism 2 and the lower roller mechanism 3, the rolling directions of the upper roller mechanism 2 and the lower roller mechanism 3 correspond to the longitudinal direction and the transverse direction of the bridge, that is, they cannot be the same rolling direction, but one corresponds to the longitudinal direction of the bridge (for example, the lower roller mechanism 3), and the other corresponds to the transverse direction of the bridge (for example, the upper roller mechanism 2).

[0102] The bottom plate 14 of the spherical hinge mechanism 1 is arranged on the roller row group of the upper roller mechanism 2, and the bottom surface of the bottom plate 14 is in linear contact with the roller row group of the upper roller mechanism 2.

[0103] In the initial structure, the roller row group of the lower roller mechanism 3 is substantially at the center of the rolling direction stroke; the bearing plate 21 of the upper roller mechanism 2 is substantially centrally arranged at the center of the roller row group of the lower roller mechanism 3; the roller row group of the upper roller mechanism 2 is substantially at the center of the rolling direction stroke; and the bottom plate 14 of the spherical hinge mechanism 1 is substantially centrally arranged at the center of the roller row group of the upper roller mechanism 2.

[0104] In the above structure, the constituent structures of the spherical hinge mechanism 1 and the upper and lower roller mechanisms are steel structures without rubber and polymer materials, the upper swing 12 or the lower swing 15 of the spherical hinge mechanism 1 is in steel contact with the ball 17, the bottom plate 14 of the spherical hinge mechanism 1 is in steel linear contact with the roller row group of the upper roller mechanism 2, and the bearing plate 21 of the upper roller mechanism 2 is in steel linear contact with the roller row group of the lower roller mechanism 3.

[0105] Of course, these shaped structures are preferably shaped from stainless steel, weather-resistant steel, etc.; if other structural steel or high-strength metal materials are used, weather-resistant coating treatment is preferably performed, which is beneficial to long-term service with the bridge throughout its life.

[0106] Example 2

[0107] Referring to Figure 7 The present application includes a spherical hinge mechanism 1, an upper roller mechanism 2, and a lower roller mechanism 3.

[0108] The spherical hinge mechanism 1 mainly includes a top plate 11, a bottom plate 14, and a ball 17.

[0109] The top plate 11 is a support plate that is in sliding contact with the upper roller mechanism 2 described below, and the top surface thereof is smooth and flat.

[0110] The top plate 11 is connected with an upwardly extending shaped upper swing 12 on its bottom side. The upper swing 12 is generally composed of a plurality of vertically arranged cross-shaped / horizontal bar-shaped (preferably) arranged ribs and an upper hemispherical shell. Each of the ribs is vertically arranged with its top width greater than its bottom width, and the plurality of the cross-shaped / horizontal bar-shaped arranged ribs form a conical structure with its top greater than its bottom. The outer side of the upper hemispherical shell is connected to the bottom of the plurality of the ribs, and forms a concave cavity on the bottom of the plurality of the ribs. The curvature of the concave cavity of the upper hemispherical shell matches the outer circumferential curvature of the following ball 17, but the depth of the concave cavity of the upper hemispherical shell is less than the radius of the following ball 17, so that it can only accommodate the upper half (most of the upper half) of the following ball 17. That is, the top plate 11 can form a spherical surface contact with the upper half of the following ball 17 through the concave cavity on the bottom of the upper swing 12.

[0111] The bottom plate 14 is a support plate that is in sliding contact with the roller shaft mechanism, and its bottom side is smooth and flat.

[0112] The bottom plate 14 is connected with a downwardly extending shaped lower swing 15 on its top side. The lower swing 15 is generally composed of a plurality of vertically arranged cross-shaped / horizontal bar-shaped (preferably) arranged ribs and a lower hemispherical shell. Each of the ribs is vertically arranged with its bottom width greater than its top width, and the plurality of the cross-shaped / horizontal bar-shaped arranged ribs form a conical structure with its bottom greater than its top. The outer side of the lower hemispherical shell is connected to the top of the plurality of the ribs, and forms a concave cavity on the top of the plurality of the ribs. The curvature of the concave cavity of the lower hemispherical shell matches the outer circumferential curvature of the following ball 17, but the depth of the concave cavity of the lower hemispherical shell is less than the radius of the following ball 17, so that it can only accommodate the lower half (most of the lower half) of the following ball 17. That is, the bottom plate 14 can form a spherical surface contact with the lower half of the following ball 17 through the concave cavity on the top of the lower swing 15.

[0113] As the most preferred consideration, the upper swing 12 on the bottom of the top plate 11 and the lower swing 15 on the top of the bottom plate 14 are preferably formed in an up-down symmetrical structure. Moreover, when the bottom edge surface of the bottom of the upper swing 12, i.e. the edge surface of the upper hemispherical shell, and the top edge surface of the top of the lower swing 15, i.e. the edge surface of the lower hemispherical shell, form a circumferential contact with substantially no gap, the top plate 11 and the bottom plate 14 are in a substantially up-down opposite parallel contact state.

[0114] In order to adapt to the rotating action of the composed spherical hinge mechanism 1, the bottom edge surface of the upper swing 12 is a conical structure with the inner side bottom and the outer side high, and the top edge surface of the lower swing 15 is a conical structure with the inner side high and the outer side low. When the bottom edge surface of the upper swing 12 and the top edge surface of the lower swing 15 form a circumferential contact with substantially no gap, the bottom edge surface and the top edge surface form an included angle of not less than 2 radians (usually not more than 10 radians).

[0115] The ball 17 is a solid steel ball with a whole circular structure.

[0116] The upper half of the ball 17 is embedded in the inner concave cavity of the bottom of the upper swing 12, and forms a smooth spherical surface matching relationship with the inner concave cavity of the upper swing 12. The bottom edge of the upper swing 12 is substantially at the maximum diameter of the ball 17, that is, near the waist. The lower half of the ball 17 is embedded in the inner concave cavity of the top of the lower swing 15, and forms a smooth spherical surface matching relationship with the inner concave cavity of the lower swing 15. The top edge of the lower swing 12 is substantially at the maximum diameter of the ball 17, that is, near the waist.

[0117] Under the condition that the top plate 11 and the bottom plate 14 maintain a substantially relative parallel state, the bottom edge of the upper swing 12 and the top edge of the lower swing 15 form a circumferential substantially equal gap matching relationship at the outer periphery of the waist of the ball 17. The height of the aforementioned gap matching relationship matches the corresponding distance between the slope matching angle (for example, 2 radians) between the bottom edge and the top edge and 0 (that is, the bottom edge and the top edge are combined to eliminate the slope matching angle).

[0118] That is, under the condition that the top plate 11 and the bottom plate 14 of the ball hinge mechanism 1 maintain a substantially relative parallel state, the bottom edge of the upper swing 12 and the top edge of the lower swing 15 are matched at an angle of ≥2 radians (usually selected in the range of 2-10 radians according to the specific bridge design requirements). When the top plate 11 and the bottom plate 14 of the ball hinge mechanism 1 rotate to the maximum stroke with the ball 17 as the center, the bottom edge and the top edge corresponding to the side where the top plate 11 and the bottom plate 14 approach each other are substantially formed in a surface contact matching relationship.

[0119] In order to ensure the smooth and long-term ball hinge matching relationship of the aforementioned ball hinge mechanism 1, the inner concave cavity of the upper swing 12 is communicated with the oil cup through the oil supply channel, and the lubricating oil is transported into the inner concave cavity of the upper swing 12 from the oil cup. Under the rotation of the ball 17, the lubricating oil will also enter the inner concave cavity of the lower swing 15. Usually, the oil cup is connected to the outside of the upper half of the spherical shell, and the oil supply channel is formed on the upper half of the spherical shell. The oil discharge channel is formed at the bottom of the lower half of the spherical shell to prevent the accumulation of lubricating oil in the inner concave cavity of the lower swing 15.

[0120] The upper roller mechanism 2 and the lower roller mechanism 3 are arranged separately on the top side and the bottom side of the ball hinge mechanism 1.

[0121] Specifically, the lower roller mechanism 3 mainly consists of a bearing plate two 31 and a plurality of roller shafts two 32.

[0122] The length and width of the bearing plate two 31 are substantially greater than the bottom plate 14 of the aforementioned ball hinge mechanism 1. The top surface of the bearing plate two 31 is smooth and flat. The bearing plate two 31 serves as a lower seat plate directly or indirectly connected to the pier, and a plurality of anchor bolts extending upward from the bottom surface side are connected thereto.

[0123] Each roller shaft two 32 is of a two-side chamfered structure, and the outer profile of the end face is similar to a rectangular structure. Of course, in order to realize the rolling displacement function in the overall structure of the support, the top profile and the bottom profile of the roller shaft two 32 are respectively outwardly convexly arched arc profiles. The two ends of each roller shaft two 32 are respectively provided with outwardly extending end shafts two 33, and the top profile and the bottom profile of the roller shaft two 32 are both on a virtual circle with the axis of the end shaft two 33 as the center.

[0124] The structures of all the roller shafts two 32 are basically the same.

[0125] The plurality of roller shafts two 32 are arranged side by side along the set rolling direction, and the two ends thereof are connected to the corresponding linkage plates two 34 through the respective end shafts two 33. The width of the linkage plate two 34 is smaller than the maximum diameter of the roller shaft two 32, but is greater than the diameter of the end shaft two 33 of the corresponding end of the roller shaft two 32. That is to say, the plurality of roller shafts two 32 are connected in series through the linkage plates two 34 connected to the two axial ends in the set rolling direction, and form a roller shaft row group of the overall synchronous linkage structure.

[0126] The roller shaft row group of the above-mentioned lower roller shaft mechanism 3 is arranged on the top surface side of the bearing plate two 31 in a rollable manner.

[0127] In order to constrain the rolling stroke of the roller shaft row group on the bearing plate two 31 and ensure safety, the bearing plate two 31 is respectively provided with an end stop two protrudingly formed to the side (i.e. the top surface) where the roller shaft row group is located at the two ends corresponding to the set rolling direction. The bearing plate two 31 is respectively provided with a side stop two protrudingly formed to the side where the roller shaft row group is located at the two sides corresponding to the set rolling direction.

[0128] The clearance distance between the two end stops two on the above-mentioned bearing plate two 31 is basically the sum of the length of the roller shaft row group and the maximum translation stroke of the beam body in the corresponding direction allowed in the design of the bridge, that is, the clearance distance between the two end stops two = the length of the roller shaft row group + the limit stroke of the translation of the beam body in the corresponding direction (for example, the longitudinal direction / the transverse direction). That is to say, the maximum rolling stroke of the roller shaft row group allowed between the two end stops two corresponds to the limit displacement amount of the beam body allowed to be translated in the corresponding direction.

[0129] The clearance distance between the two side stops two on the above-mentioned bearing plate two 31 is basically the sum of the axial width of the roller shaft row group and the free rolling gap of the roller shaft row group, that is, the clearance distance between the two side stops two = the axial width of the roller shaft row group + the free rolling gap of the roller shaft row group. That is to say, the corresponding axial ends of the roller shaft row group and the two side stops two are respectively gap-fitted, and the distance between the two side stops two allows the free rolling of the roller shaft row group on the bearing plate two 31 in the set rolling direction.

[0130] The bottom plate 14 of the spherical hinge mechanism 1 is arranged on the roller shaft array of the lower roller shaft mechanism 3, and the bottom surface of the bottom plate 14 is in linear contact with the roller shaft array of the lower roller shaft mechanism 3. In the initial structure, the roller shaft array of the lower roller shaft mechanism 3 is substantially at the stroke center in the rolling direction, and the bottom plate 14 of the spherical hinge mechanism 1 is substantially centrally arranged on the center of the roller shaft array of the lower roller shaft mechanism 3.

[0131] The upper roller shaft mechanism 2 mainly comprises a bearing plate 21 and a plurality of roller shafts 22.

[0132] The bearing plate 21 has a length and a width substantially larger than the top plate 14 of the spherical hinge mechanism 1 and substantially corresponds to the bearing plate 31 of the lower roller shaft mechanism 3. The bottom surface of the bearing plate 21 is smooth, and the bearing plate 21 serves as an upper seat plate directly or indirectly connected to the supported beam body, and a plurality of anchor bolts extending upward from the top surface are connected to the bearing plate 21.

[0133] Each roller shaft 22 has a two-side edge structure, and the end surface has a rectangular structure. Of course, in order to realize the rolling displacement function in the overall structure of the support, the top profile and the bottom profile of the roller shaft 22 are respectively arc-shaped profiles outwardly convexly shaped. The two ends of each roller shaft 22 respectively have an end shaft 23 outwardly extending, and the top profile and the bottom profile of the roller shaft 22 are both on a virtual circle with the axis of the end shaft 23 as the center.

[0134] All the roller shafts 22 have substantially the same structure.

[0135] The plurality of roller shafts 22 are arranged side by side along the set rolling direction, and the two ends thereof are connected to the corresponding linkage plates 24 through the respective end shafts 23. The width of the linkage plate 24 is smaller than the maximum diameter of the roller shaft 22, but larger than the diameter of the end shaft 23 of the corresponding end of the roller shaft 22. That is, the plurality of roller shafts 22 are connected in series through the linkage plates 24 connected to the two ends in the axial direction in the set rolling direction, and form the roller shaft array of the overall synchronous linkage structure.

[0136] The roller shaft array of the upper roller shaft mechanism is arranged in a rollable manner on the top plate 11 of the spherical hinge mechanism 1, at the bottom surface side of the bearing plate 21, and the roller shaft array is in linear contact with the top plate 11 of the spherical hinge mechanism 1. In the initial structure, the roller shaft array of the upper roller shaft mechanism 2 is substantially at the stroke center in the rolling direction on the top plate 11 of the spherical hinge mechanism, and the bearing plate 21 is substantially centrally arranged on the center of the roller shaft array.

[0137] In order to constrain the relative rolling stroke between the roller shaft group and the bearing plate one, and to ensure safety, the bearing plate one is provided with end stops one protruding to the side (i.e. the bottom surface) of the roller shaft group at both ends corresponding to the set rolling direction.

[0138] The clearance distance between the two end stops one on the bearing plate one is basically the sum of the length of the roller shaft group and the maximum translational stroke of the beam body in the corresponding direction allowed in the design of the bridge, i.e. the clearance distance between the two end stops one = the length of the roller shaft group + the limit stroke of the beam body in the corresponding direction (e.g. longitudinal / lateral). That is, the maximum rolling stroke of the roller shaft group allowed between the two end stops one corresponds to the limit displacement of the supported beam body in the corresponding direction.

[0139] The clearance distance between the two side stops one on the bearing plate one is basically the sum of the axial width of the roller shaft group and the free rolling gap of the roller shaft group, i.e. the clearance distance between the two side stops one = the axial width of the roller shaft group + the free rolling gap of the roller shaft group. That is, the two side stops one and the corresponding shaft ends of the roller shaft group are respectively gap-fitted, and the distance between the two side stops one allows the free rolling of the roller shaft group on the bearing plate one in the set rolling direction.

[0140] From the above structure, it can be directly seen that the bearing plate one of the upper roller shaft mechanism actually serves as the upper seat plate connected to the supported beam body, and the top plate 11 of the spherical hinge mechanism 1 actually serves as the bearing plate of the upper roller shaft mechanism. Therefore, in their matching structure, it is best that:

[0141] - the size and arrangement direction of the top plate 11 of the spherical hinge mechanism 1 are consistent with those of the bearing plate one of the upper roller shaft mechanism;

[0142] - end stops protruding to the side of the roller shaft group are respectively provided at both ends of the top plate 11 of the spherical hinge mechanism 1 corresponding to the set rolling direction, and the maximum rolling stroke of the roller shaft group allowed between the two end stops corresponds to the limit displacement of the supported beam body in the corresponding direction;

[0143] - side stops protruding to the side of the roller shaft are respectively provided at both sides of the top plate 11 of the spherical hinge mechanism 1 corresponding to the set rolling direction, and the two side stops and the corresponding shaft ends of the roller shaft group are respectively gap-fitted, and the distance between the two side stops allows the free rolling of the roller shaft group on the bearing plate in the set rolling direction.

[0144] As described above, the lower roller mechanism 3 is connected to the corresponding pier, the upper roller mechanism 2 is connected to the bottom of the supported beam body, the spherical hinge mechanism 1 is arranged between the roller row groups of the upper roller mechanism 2 and the roller row groups of the lower roller mechanism 3, and the upper roller mechanism 2 and the lower roller mechanism 3 are arranged separately on the top and bottom sides of the spherical hinge mechanism 1. In the separate arrangement structure of the upper roller mechanism 2 and the lower roller mechanism 3, the rolling directions of the upper roller mechanism 2 and the lower roller mechanism 3 correspond to the longitudinal direction and the transverse direction of the bridge, that is, they cannot be the same rolling direction, but one corresponds to the longitudinal direction of the bridge (for example, the lower roller mechanism 3), and the other corresponds to the transverse direction of the bridge (for example, the upper roller mechanism 2).

[0145] In the above structure, the constituent structural members of the spherical hinge mechanism 1 and the upper and lower roller mechanisms are steel structures without containing rubber materials and high polymer materials, the upper swing 12 or the lower swing 15 of the spherical hinge mechanism 1 is matched with the spherical body 17 in a steel contact surface, the bottom plate 14 of the spherical hinge mechanism 1 is matched with the roller row group of the lower roller mechanism 3 in a steel line contact, and the top plate 11 of the spherical hinge mechanism 1 is matched with the roller row group of the upper roller mechanism 2 in a steel line contact.

[0146] Of course, these shaped structural members are preferably shaped from stainless steel, weather-resistant steel, etc.; if they are other structural steel or high-strength metal materials, they are preferably subjected to weather-resistant coating treatment, which is beneficial to long-term service in the whole life of the bridge.

[0147] Example 3

[0148] Referring to Figure 8 , Figure 9 and Figure 10 , the present application comprises a spherical hinge mechanism 1, an upper roller mechanism 2, and a lower roller mechanism 3.

[0149] The spherical hinge mechanism 1 mainly comprises a top plate 11, a bottom plate 14, and a spherical body 17.

[0150] The top plate 11 is an upper seat plate directly or indirectly connected to the beam body, and a plurality of anchor bolts extending upward from the top surface side are connected to the top plate 11.

[0151] The top plate 11 is connected with an upwardly extending shaped upper swing 12 on its bottom side. The upper swing 12 is generally composed of a plurality of vertically arranged cross-shaped / horizontal bar-shaped (preferably) arranged ribs and an upper hemispherical shell. Each of the ribs is vertically arranged with its top width greater than its bottom width, and the plurality of the cross-shaped / horizontal bar-shaped arranged ribs form a conical structure with its top greater than its bottom. The outer side of the upper hemispherical shell is connected to the bottom of the plurality of the ribs to form a concave cavity on the bottom of the plurality of the ribs, and the curvature of the concave cavity of the upper hemispherical shell matches the curvature of the lower spherical crown surface of the following spherical body 17, and the depth of the concave cavity of the upper hemispherical shell is equal to the height of the upper spherical crown surface of the following spherical body 17, so that the upper hemispherical shell can only accommodate the upper spherical crown surface of the following spherical body 17. That is, the top plate 11 can form a spherical surface contact with the upper half of the following spherical body 17 through the concave cavity on the bottom of the upper swing 12.

[0152] The bottom plate 14 is a support plate that is in sliding contact with the roller shaft mechanism, and its bottom side is smooth and flat.

[0153] The bottom plate 14 is connected with a downwardly extending shaped lower swing 15 on its top side. The lower swing 15 is generally composed of a plurality of vertically arranged cross-shaped / horizontal bar-shaped (preferably) arranged ribs and a lower hemispherical shell. Each of the ribs is vertically arranged with its bottom width greater than its top width, and the plurality of the cross-shaped / horizontal bar-shaped arranged ribs form a conical structure with its bottom greater than its top. The outer side of the lower hemispherical shell is connected to the top of the plurality of the ribs to form a concave cavity on the top of the plurality of the ribs, and the curvature of the concave cavity of the lower hemispherical shell matches the curvature of the lower spherical crown surface of the following spherical body 17, but the depth of the concave cavity of the lower hemispherical shell is equal to the height of the lower spherical crown surface of the following spherical body 17, so that the lower hemispherical shell can only accommodate the lower spherical crown surface of the following spherical body 17. That is, the bottom plate 14 can form a spherical surface contact with the lower half of the following spherical body 17 through the concave cavity on the top of the lower swing 15.

[0154] As the most preferred consideration, the upper swing 12 on the bottom of the top plate 11 and the lower swing 15 on the top of the bottom plate 14 are preferably formed in an up-down symmetrical structure. Moreover, when the bottom edge surface 13 on the bottom of the upper swing 12, i.e. the edge surface of the upper hemispherical shell, and the top edge surface 16 on the top of the lower swing 15, i.e. the edge surface of the lower hemispherical shell, form a circumferentially substantially gapless contact, the top plate 11 and the bottom plate 14 are substantially in an up-down opposite parallel contact state.

[0155] In order to adapt to the rotation of the spherical hinge mechanism 1, the bottom edge surface 13 of the upper swing 12 is a conical structure with its inner side bottom and its outer side high, and the top edge surface 16 of the lower swing 15 is a conical structure with its inner side high and its outer side low. When the bottom edge surface 13 of the upper swing 12 and the top edge surface 16 of the lower swing 15 form a circumferentially substantially gapless contact, the bottom edge surface 13 and the top edge surface 16 form an included angle of not less than 2 radians (usually not more than 10 radians).

[0156] The spherical body 17 is a non-circular structure spherical crown body formed by the upper and lower parts of the upper and lower spherical crown faces. It is made of high-strength and wear-resistant steel. The upper and lower spherical crown faces are basically symmetrical structures with the waist line as the center. In order to adapt to the height of the circumferential gap between the bottom edge surface 13 of the upper swing 12 and the top edge surface of the lower swing 15, the waist part between the upper and lower spherical crown faces of the spherical body 17 basically has a transition area corresponding to the height of the circumferential gap, which is usually slightly smaller than the height of the circumferential gap. The spherical body 17 is a solid core spherical crown body structure.

[0157] The upper spherical crown face of the spherical body 17 is embedded in the inner recess cavity of the bottom of the upper swing 12, and forms a smooth spherical surface matching relationship with the inner recess cavity of the upper swing 12. The bottom edge surface 13 of the upper swing 12 is basically at the edge of the upper spherical crown face. The lower spherical crown face of the spherical body 17 is embedded in the inner recess cavity of the top of the lower swing 15, and forms a smooth spherical surface matching relationship with the inner recess cavity of the lower swing 15. The top edge surface 16 of the lower swing 12 is basically at the edge of the lower spherical crown face of the spherical body 17.

[0158] Under the condition that the top plate 11 and the bottom plate 14 maintain a basically relative parallel state, the bottom edge surface 13 of the upper swing 12 and the top edge surface 16 of the lower swing 15 form a circumferential gap matching relationship with a basically equal gap at the waist part of the spherical body 17. The height of the gap matching relationship matches the corresponding distance between the slope matching angle (for example, 2 radian) between the bottom edge surface 13 and the top edge surface 16 to 0 (that is, the bottom edge surface 13 and the top edge surface 16 are combined to eliminate the slope matching angle).

[0159] That is, under the condition that the top plate 11 and the bottom plate 14 of the spherical hinge mechanism 1 maintain a basically relative parallel state, the bottom edge surface 13 of the upper swing 12 and the top edge surface 16 of the lower swing 15 are matched at an angle of ≥2 radian (usually selected in the range of 2-10 radian according to the specific bridge design requirements); when the top plate 11 and the bottom plate 14 of the spherical hinge mechanism 1 rotate to the maximum stroke with the spherical body 17 as the center, the bottom edge surface 13 and the top edge surface 16 on the side where the top plate 11 and the bottom plate 14 approach each other basically form a surface contact matching relationship.

[0160] In order to ensure the smooth and long-term spherical hinge matching relationship of the spherical hinge mechanism 1, the inner recess cavity of the upper swing 12 is communicated with the oil cup 18 through the oil supply channel, and the lubricating oil is transported from the oil cup 18 to the inner recess cavity of the upper swing 12. Under the rotation of the spherical body 17, the lubricating oil also enters the inner recess cavity of the lower swing 15. Usually, the oil cup 18 is connected to the outside of the upper hemispherical shell, and the oil supply channel is provided on the upper hemispherical shell. The oil discharge channel is provided at the bottom of the lower hemispherical shell to prevent the accumulation of lubricating oil in the inner recess cavity of the lower swing 15.

[0161] The upper roller shaft mechanism 2 and the lower roller shaft mechanism 3 are stacked and arranged at the bottom side of the spherical hinge mechanism 1.

[0162] Specifically, the lower roller mechanism 3 mainly consists of a bearing plate 2 31 and a plurality of roller shafts 2 32.

[0163] The bearing plate 2 31 has a length and width that are substantially greater than the bottom plate 14 of the spherical hinge mechanism 1. The top surface of the bearing plate 2 31 is smooth and flat. The bearing plate 2 31 serves as a lower seat plate that is directly or indirectly connected to the pier. A plurality of anchor bolts are connected to the bearing plate 2 31 and extend upward from the bottom surface.

[0164] Each roller shaft 2 32 has a two-side edge-reduced structure, and the end surface has a rectangular structure. In order to achieve the rolling displacement function in the overall structure of the support, the top profile and the bottom profile of the roller shaft 2 32 are respectively arc-shaped profiles that are outwardly convexly curved. The two ends of each roller shaft 2 32 have outwardly extending end shafts 2, and the top profile and the bottom profile of the roller shaft 2 32 are on a virtual circle with the axis of the end shaft 2 as the center.

[0165] All the roller shafts 2 32 have substantially the same structure.

[0166] The plurality of roller shafts 2 32 are arranged side by side along the set rolling direction, and their two ends are connected to the corresponding linkage plates 2 through the respective end shafts 2. The width of the linkage plate 2 is less than the maximum diameter of the roller shaft 2 32, but greater than the diameter of the end shaft 2 of the corresponding end of the roller shaft 2 32. That is, the plurality of roller shafts 2 32 are connected in series through the linkage plates 2 connected to the two ends in the set rolling direction, and form a roller shaft row group of the overall synchronous linkage structure.

[0167] The roller shaft row group of the lower roller mechanism 3 is arranged on the top surface side of the bearing plate 2 31 in a rollable manner.

[0168] In order to constrain the rolling stroke of the roller shaft row group on the bearing plate 2 and ensure safety, end stops 2 are provided on the two ends of the bearing plate 2 corresponding to the set rolling direction, and are convexly formed towards the side (i.e. the top surface) where the roller shaft row group is located. Side stops 2 are provided on the two sides of the bearing plate 2 corresponding to the set rolling direction, and are convexly formed towards the side where the roller shaft row group is located.

[0169] The clearance distance between the two end stops 2 on the bearing plate 2 is substantially the sum of the length of the roller shaft row group and the maximum translational stroke of the beam body in the corresponding direction allowed in the design of the bridge, i.e. the clearance distance between the two end stops 2 = the length of the roller shaft row group + the limit stroke of the beam body in the corresponding direction (e.g. longitudinal / lateral) allowed to translate. That is, the maximum rolling stroke of the roller shaft row group allowed between the two end stops 2 corresponds to the limit displacement amount of the supported beam body in the corresponding direction allowed to translate.

[0170] The clearance distance between the two side stops two on the bearing plate two is basically the sum of the axial width of the roller shaft group and the free rolling gap of the roller shaft group, that is, the clearance distance between the two side stops two = the axial width of the roller shaft group + the free rolling gap of the roller shaft group. That is, the two side stops two and the corresponding shaft ends of the roller shaft group are respectively in clearance fit, and the distance between the two side stops two allows the roller shaft group on the bearing plate two to freely roll in the set rolling direction.

[0171] The upper roller shaft mechanism 2 mainly consists of a bearing plate one 21 and a plurality of roller shafts one 22.

[0172] The bearing plate one 21 has a length and a width that are basically larger than the bottom plate 14 of the spherical hinge mechanism 1 and basically correspond to the bearing plate two 31 of the lower roller shaft mechanism 3. The top surface of the bearing plate one 21 is smooth and flat, and the bottom surface of the bearing plate one 21 is smooth and flat on one side.

[0173] Each roller shaft one 22 has a two-side edge structure, and the end surface has a rectangular structure. Of course, in order to realize the rolling displacement function in the overall structure of the support, the top profile and the bottom profile of the roller shaft one 22 are respectively outwardly convexly formed arc profiles. The two ends of each roller shaft one 22 respectively have outwardly extending end shafts one, and the top profile and the bottom profile of the roller shaft one 22 are on a virtual circle with the axis of the end shaft one as the center.

[0174] All the roller shafts one 22 have basically the same structure.

[0175] The plurality of roller shafts one 22 are arranged side by side along the set rolling direction, and their two ends are connected to the corresponding linkage plates one through the respective end shafts one. The width of the linkage plate one is smaller than the maximum diameter of the roller shaft one 22, but larger than the diameter of the end shaft one of the corresponding end of the roller shaft one 22. That is, the plurality of roller shafts one 22 are connected in series through the linkage plates one connected to the axial ends in the set rolling direction to form a roller shaft group with an overall synchronous linkage structure.

[0176] The roller shaft group of the upper roller shaft mechanism 2 is arranged on the top surface side of the bearing plate one 21 in a rollable manner.

[0177] In order to constrain the rolling stroke of the roller shaft group on the bearing plate one and ensure safety, the bearing plate one is respectively provided with an end stop one protruding and formed to the side (i.e., the top surface) of the roller shaft group at the two ends corresponding to the set rolling direction. The bearing plate one is respectively provided with a side stop one protruding and formed to the side of the roller shaft group at the two sides corresponding to the set rolling direction.

[0178] The clearance distance between the two end stops on the bearing plate 1 is substantially the length of the roller shaft array plus the maximum allowable displacement of the beam in the corresponding direction (e.g. longitudinal or transverse direction). That is, the maximum rolling distance of the roller shaft array between the two end stops corresponds to the maximum allowable displacement of the supported beam in the corresponding direction.

[0179] The clearance distance between the two side stops on the bearing plate 1 is substantially the axial width of the roller shaft array plus the free rolling gap of the roller shaft array. That is, the two side stops are respectively in clearance fit with the corresponding axial ends of the roller shaft array, and the distance between the two side stops allows the free rolling of the roller shaft array on the bearing plate 1 in the set rolling direction.

[0180] As described above, the lower roller shaft mechanism 3 is connected to the corresponding pier, and the upper roller shaft mechanism 2 is arranged on the roller shaft array of the lower roller shaft mechanism 3 through the bearing plate 1, forming a stacked arrangement, and the bottom surface of the bearing plate 1 is in linear contact with the roller shaft array of the lower roller shaft mechanism 3. In the stacked arrangement of the upper roller shaft mechanism 2 and the lower roller shaft mechanism 3, the rolling directions of the upper roller shaft mechanism 2 and the lower roller shaft mechanism 3 correspond to the longitudinal and transverse directions of the bridge, i.e. they cannot be the same rolling direction, but one corresponds to the longitudinal direction of the bridge (e.g. the lower roller shaft mechanism 3), and the other corresponds to the transverse direction of the bridge (e.g. the upper roller shaft mechanism 2).

[0181] The bottom plate 14 of the spherical hinge mechanism 1 is arranged on the roller shaft array of the upper roller shaft mechanism 2, and the bottom surface of the bottom plate 14 is in linear contact with the roller shaft array of the upper roller shaft mechanism 2.

[0182] In the initial structure, the roller shaft array of the lower roller shaft mechanism 3 is substantially at the center of the rolling direction; the bearing plate 1 of the upper roller shaft mechanism 2 is substantially centrally arranged on the center of the roller shaft array of the lower roller shaft mechanism 3; the roller shaft array of the upper roller shaft mechanism 2 is substantially at the center of the rolling direction; and the bottom plate 14 of the spherical hinge mechanism 1 is substantially centrally arranged on the center of the roller shaft array of the upper roller shaft mechanism 2.

[0183] In the above structure, the constituent structural members of the spherical hinge mechanism 1 and the upper and lower roller shaft mechanisms are steel structures without containing rubber materials and high polymer materials, the upper swing 12 or the lower swing 15 of the spherical hinge mechanism 1 is in steel contact surface fit with the ball 17, the bottom plate 14 of the spherical hinge mechanism 1 is in steel linear contact fit with the roller shaft array of the upper roller shaft mechanism 2, and the bearing plate 1 of the upper roller shaft mechanism 2 is in steel linear contact fit with the roller shaft array of the lower roller shaft mechanism 3.

[0184] Of course, these shaped structural members are preferably shaped from stainless steel, weathering steel, etc.; if other structural steel or high-strength metal materials are used, weathering coating treatment is preferably performed, which is conducive to long-term service in the full life of the bridge.

[0185] Example 4

[0186] The other contents of this example are the same as those of Example 1 or 3, except that:

[0187] - the two-layer roller shaft mechanism is stacked on the top side of the spherical hinge mechanism, just as in Example 2, the top plate of the spherical hinge mechanism cooperates with the matching structure of the upper roller shaft mechanism, the bearing plate of the roller shaft mechanism is on the upper side, the roller shaft row is on the lower side, and is seated on the immediately underlying structural member (for example, the roller shaft row of the upper roller shaft mechanism is seated on the bearing plate of the lower roller shaft mechanism, and the roller shaft row of the lower roller shaft mechanism is seated on the top plate of the spherical hinge mechanism);

[0188] - the bottom plate of the spherical hinge mechanism serves as a lower seat plate that is directly or indirectly connected to the corresponding pier, and a plurality of anchor bolts extending downward from the bottom surface are connected thereto.

[0189] This example can also achieve the technical purpose of the present application in theory, but the stability and reliability are obviously inferior to those of Example 1 or Example 3, because the two groups of roller shaft mechanisms that bear the translation function are located in the upper region of the entire support, and the spherical hinge mechanism that bears the rotation function is located in the lower region of the entire support, and thus Example 1 or Example 3 is obviously superior to this example.

[0190] Example 5

[0191] The other contents of this example are the same as those of Example 1, 2, 3, or 4, except that:

[0192] The top plate of the spherical hinge mechanism and the upper swing are integrally cast into a shaped structure, and a wear-resistant copper pad is connected in the inner concave cavity of the upper swing;

[0193] And / or, the bottom plate of the spherical hinge mechanism and the lower swing are integrally cast into a shaped structure, and a wear-resistant copper pad is connected in the inner concave cavity of the lower swing.

[0194] Example 6

[0195] The other contents of this example are the same as those of Example 1, 2, 3, 4, or 5, except that:

[0196] The roller shaft of the roller shaft mechanism is a round steel roller structure.

[0197] The above examples are only used to illustrate the present application, and not to limit it.

[0198] Although the present application is described in details with reference to the above embodiments, it should be understood by those skilled in the art that the above embodiments can be modified, or some technical features can be replaced by equivalent ones, and the modifications or replacements do not make the nature of the corresponding technical solutions deviate from the spirit and scope of the present application.

Claims

1. A full-life bridge support characterized in that: the support comprises a spherical hinge mechanism (1) and two groups of roller shaft mechanisms; the spherical hinge mechanism (1) is mainly composed of a top plate (11), a bottom plate (14) and a ball (17), the top plate (11) is in metal spherical surface contact with the upper half of the ball (17) through the inner concave cavity at the bottom of the upper swing (12), the bottom plate (14) is in metal spherical surface contact with the lower half of the ball (17) through the inner concave cavity at the top of the lower swing (15); the top plate (11) and the bottom plate (14) are kept in a relative parallel state, and the bottom edge surface (13) of the upper swing (12) and the top edge surface (16) of the lower swing (15) are matched with a circumferential gap; two groups of roller shaft mechanisms are stacked and arranged on the bottom side of the spherical hinge mechanism (1), the bearing plate of the lower roller shaft mechanism is directly or indirectly connected with the corresponding pier, the bearing plate of the upper roller shaft mechanism is seated on the roller shaft row group of the lower roller shaft mechanism, the rolling directions of the upper roller shaft mechanism and the lower roller shaft mechanism correspond to the longitudinal and transverse directions of the bridge, the bottom plate (14) of the spherical hinge mechanism (1) is seated on the roller shaft row group of the upper roller shaft mechanism in metal contact, and the top plate (11) of the spherical hinge mechanism (1) is directly or indirectly connected with the supported beam body; alternatively, two groups of roller shaft mechanisms are separately arranged on the top side and the bottom side of the spherical hinge mechanism (1), the bearing plate of the lower roller shaft mechanism is directly or indirectly connected with the corresponding pier, the bottom plate (14) of the spherical hinge mechanism (1) is seated on the roller shaft row group of the lower roller shaft mechanism in metal contact, the roller shaft row group of the upper roller shaft mechanism is seated on the top plate (11) of the spherical hinge mechanism (1) in metal contact, the bearing plate of the upper roller shaft mechanism is directly or indirectly connected with the supported beam body, and the rolling directions of the upper roller shaft mechanism and the lower roller shaft mechanism correspond to the longitudinal and transverse directions of the bridge; alternatively, two groups of roller shaft mechanisms are stacked and arranged on the top side of the spherical hinge mechanism (1), the bottom plate (14) of the spherical hinge mechanism (1) is directly or indirectly connected with the corresponding pier, the roller shaft row group of the lower roller shaft mechanism is seated on the top plate (11) of the spherical hinge mechanism (1) in metal contact, the roller shaft row group of the upper roller shaft mechanism is seated on the bearing plate of the lower roller shaft mechanism in metal contact, the bearing plate of the upper roller shaft mechanism is directly or indirectly connected with the corresponding pier, and the rolling directions of the upper roller shaft mechanism and the lower roller shaft mechanism correspond to the longitudinal and transverse directions of the bridge.

2. The full-life bridge support according to claim 1, characterized in that: the bottom edge surface (13) of the upper swing (12) is a conical structure with an inner side bottom and an outer side high; the top edge surface (16) of the lower swing (15) is a conical structure with an inner side high and an outer side low; the top plate (11) and the bottom plate (14) of the spherical hinge mechanism (1) are kept in a relative parallel state, and the bottom edge surface (13) of the upper swing (12) and the top edge surface (16) of the lower swing (15) are matched with an included angle of ≥2 radians. And, when the top plate (11) and the bottom plate (14) of the ball hinge mechanism (1) rotate to the maximum stroke around the ball (17) as the center, the top plate (11) and the bottom plate (14) are in surface contact with each other on the side corresponding to the bottom edge surface (13) and the top edge surface (16).

3. The full-life bridge support according to claim 1, characterized in that: The ball (17) is a metal ball with a whole round structure. Or, the ball (17) is a non-round structure metal steel ball crown body combined by an upper ball crown surface and a lower ball crown surface.

4. The full-life bridge support according to claim 1, characterized in that: The roller shaft mechanism mainly consists of a bearing plate and a plurality of roller shafts, and the plurality of roller shafts are arranged side by side on one side of the bearing plate in a synchronous linkage structure along the set rolling direction.

5. The full-life bridge support according to claim 4, characterized in that: The bearing plate is provided with end stops protruding and formed on the side where the roller shafts are located at both ends corresponding to the set rolling direction. The maximum rolling stroke allowed between the two end stops corresponds to the limit displacement amount allowed for the supported beam body to translate in the corresponding direction.

6. The full-life bridge support according to claim 4 or 5, characterized in that: The bearing plate is provided with side stops protruding and formed on the side where the roller shafts are located at both sides corresponding to the set rolling direction. The distance between the two side stops allows the roller shaft group on the bearing plate to freely roll in the set rolling direction.

7. The full-life bridge support according to claim 4, characterized in that: The plurality of roller shafts of the roller shaft mechanism are connected in series in the set rolling direction through linkage plates connected at both axial ends to form an integral linkage roller shaft group. The width of the linkage plate is smaller than the maximum diameter of the roller shaft and larger than the end shaft diameter of the corresponding end part of the roller shaft.

8. The full-life bridge support according to claim 1, characterized in that: The roller shaft mechanism is located in the top plate (11) structure of the ball hinge mechanism (1), and the top plate (11) of the ball hinge mechanism (1) is provided with end stops protruding and formed on the side where the roller shafts are located at both ends corresponding to the set rolling direction, and the maximum rolling stroke allowed between the two end stops corresponds to the limit displacement amount allowed for the supported beam body to translate in the corresponding direction. The top plate (11) of the ball hinge mechanism (1) is provided with side stops protruding and formed on the side where the roller shafts are located at both sides corresponding to the set rolling direction, and the distance between the two side stops allows the roller shaft group on the bearing plate to freely roll in the set rolling direction.

9. The full-life bridge support according to claim 1, characterized in that: The inner concave cavity of the upper swing (12) is communicated with the oil cup (18) through the oil supply channel.

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