Top-falling beam swivel construction process and swivel spherical hinge
By releasing the limiting component after rotation, the height of the rotating ball joint body is lowered to the level where the permanent support bears the load, solving the problem of the rotating ball joint being difficult to remove, and realizing the recycling of resources and cost reduction.
Patent Information
- Application Number
- CN202310298888.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-24
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2043-03-24
AI Technical Summary
Existing swivel ball joints are difficult to remove after construction, resulting in resource waste and high costs. They are also large in tonnage and the resources cannot be recycled.
A rotating ball joint with height adjustment function is adopted. After rotation, the limiting component is released, and the height of the ball joint body is lowered to the point where the permanent support bears the load, so as to realize the removal and recycling of the ball joint body.
This technology enables the recycling of swivel ball joints, reducing construction costs, decreasing tonnage, and improving economy and construction efficiency.
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Figure CN116427294B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of swivel body, and can also be the field of municipal, bridge, building and other structures, and particularly relates to a top beam falling swivel construction process and a swivel spherical hinge. BACKGROUND
[0002] With the rapid development of national economy, the transportation industry has been greatly developed. Due to the influence of some terrain or existing traffic facilities, the swivel bridge construction method is more and more widely used in bridge construction. Compared with the traditional construction process, the swivel construction process has the characteristics of not interfering with traffic, uninterrupted navigation, crossing deep ditches, rivers and frequently used roads, and rapid construction, high efficiency and economy.
[0003] As a kind of swivel construction, the swivel spherical hinge is a key link. The existing swivel spherical hinge is difficult to take out after the swivel construction is completed because the swivel spherical hinge is large in tonnage. The swivel spherical hinge is embedded in the structure, the resources cannot be recycled, and the cost is high and the resources are seriously wasted. SUMMARY
[0004] The purpose of the present application is to provide a top beam falling swivel construction process and a swivel spherical hinge. After the swivel of the upper structural member is completed, the height of the swivel spherical hinge is adjusted by using the self-weight of the upper structural member, so that the height of the swivel spherical hinge is lowered, the permanent support between the pier and the beam completely bears the load of the upper structural member, and the swivel spherical hinge is taken out. Under the premise of not jacking the upper structural member, resource recycling is realized, and the cost is reduced.
[0005] To solve the above technical problems, the present application adopts the following scheme:
[0006] A top beam falling swivel construction process, comprising the following steps:
[0007] S1: installing a swivel spherical hinge body with height adjustment function between the upper and lower structural members, the swivel spherical hinge body bearing the load of the upper structural member, and installing a limiting piece to limit the height change of the swivel spherical hinge body;
[0008] S2: performing swivel construction according to design requirements;
[0009] S3: after the swivel is completed, releasing the limiting piece to limit the height of the swivel spherical hinge body, and lowering the height of the swivel spherical hinge body under the action of the load of the upper structural member, until the permanent support or temporary support on the side of the swivel spherical hinge body bears the load of the upper structural member;
[0010] S4: taking out the swivel spherical hinge body to complete the construction.
[0011] Optionally, the swivel spherical hinge body is changed in height by relative sliding of the two wedge-shaped blocks, and the limiting piece is used to limit the relative sliding of the two wedge-shaped blocks; when the swivel spherical hinge body needs to be taken out, the limiting piece is adjusted, and under the load of the upper structure, the two wedge-shaped blocks are close to each other, and the height of the swivel spherical hinge body is lowered to a set value.
[0012] A swivel spherical hinge comprises a swivel spherical hinge body, which is installed between a lower structure and an upper structure, and an upper anchor pad plate and a lower anchor pad plate are respectively arranged at the upper end and the lower end of the swivel spherical hinge body and fixed to the bottom surface of the upper structure and the top surface of the lower structure, wherein the swivel spherical hinge body comprises a rotating body and an adjusting mechanism for adjusting the height of the swivel spherical hinge body, and the adjusting mechanism is connected to the upper end or the lower end of the rotating body.
[0013] Optionally, the adjusting mechanism is connected to the upper end of the rotating body, and the adjusting mechanism comprises an upper seat plate and two wedge-shaped blocks, the upper seat plate is connected to the upper anchor pad plate through a bolt, the bottom surface of the upper seat plate is symmetrically provided with two inclined surfaces, the top surface of the wedge-shaped block is matched with the inclined surface, the bottom surface of the wedge-shaped block is in contact with the top surface of the rotating body, and the bottom surface of the upper seat plate and the top surface of the rotating body form a sliding cavity for the relative sliding of the two wedge-shaped blocks, and a limiting piece is arranged between the two wedge-shaped blocks.
[0014] Optionally, the limiting piece is a left adjusting plate and a right adjusting plate, and the contact surfaces of the left adjusting plate and the right adjusting plate are sliding inclined surfaces matched with each other.
[0015] Optionally, the outer sides of the left adjusting plate and the right adjusting plate are provided with limiting bolts for limiting the relative sliding of the left adjusting plate and the right adjusting plate, and the limiting bolts are threadedly connected with limiting racks fixed to the front end and the rear end of the upper seat plate.
[0016] Optionally, the rotating body comprises an upper spherical plate and a lower spherical plate rotatably connected, the lower spherical plate has a gap with the lower anchor pad plate and is connected through a bolt, the upper spherical plate is connected to the upper seat plate through a bolt, the bottom surface of the upper spherical plate is a convex spherical surface, and the top surface of the lower spherical plate is a concave spherical surface matched with the convex spherical surface.
[0017] Optionally, the top surface of the lower spherical plate is provided with a positioning pin protruding upward at a central position, the bottom surface of the upper spherical plate is provided with a pin hole recessed upward and matched with the positioning pin, and the positioning pin and the pin hole are rotatably connected.
[0018] Optionally, the lower spherical plate and the lower anchor pad plate are provided with a planar sliding plate embedded in the top surface of the lower anchor pad plate, and the concave spherical surface of the lower spherical plate is embedded with a matched spherical sliding plate.
[0019] Optionally, the upper anchor pad plate and the lower anchor pad plate are connected to the upper structure and the lower structure respectively through anchor bolts.
[0020] The present application has the following beneficial effects:
[0021] 1. In the present application, the swivel ball hinge body is installed between the upper anchor pad plate and the lower anchor pad plate, after the upper structure is rotated under the action of the rotating body, the anchor bolts of the upper anchor pad plate are unscrewed, under the load action of the upper structure, the height of the swivel ball hinge body is lowered by the lowering function of the adjusting mechanism, the upper structure is lowered to the permanent support between the pier and the beam to bear the load completely, then the swivel ball hinge body is taken out, resource recycling is realized, cost is reduced, and economy is better.
[0022] 2. Compared with the traditional pier bottom swivel, the pier top swivel mode is adopted, the tonnage of the swivel ball hinge body is greatly reduced, and the cost is low. DETAILED DESCRIPTION
[0023] Figure 1 The construction flowchart of the present application is shown in the figure.
[0024] Figure 2 The cross-sectional structure diagram of the present application is shown in the figure.
[0025] Figure 3 The structure diagram of the limiting piece as an adjusting plate is shown in the figure.
[0026] The figure shows that: 1 is an upper anchor pad plate, 2 is an upper seat plate, 3 is a wedge-shaped block, 4 is an upper ball plate, 5 is a lower ball plate, 6 is a lower anchor pad plate, 7 is a sliding cavity, 8 is a limiting piece, 81 is a left adjusting plate, 82 is a right adjusting plate, 9 is a positioning pin, 10 is a pin hole, 11 is a spherical sliding plate, 12 is a planar sliding plate, 13 is a bolt, 14 is an anchor bolt, 15 is a limiting bolt, and 16 is a limiting frame. DETAILED DESCRIPTION
[0027] The present application will be further described in detail below in combination with embodiments and the drawings, but the embodiments of the present application are not limited thereto.
[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "back", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0029] In the description of the present application, it is also necessary to explain that, unless otherwise explicitly specified and limited, the terms "set", "open", "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0030] Embodiment 1
[0031] 1. A top-falling beam rotation construction process, characterized in that it comprises the following steps:
[0032] S1: installing a rotation ball hinge body with height adjustment function between upper and lower structural members, the rotation ball hinge body bearing the load of the upper structural member, and installing a limiting member 8 to limit the height change of the rotation ball hinge body;
[0033] S2: performing rotation construction according to design requirements;
[0034] S3: after the rotation is completed, releasing the limiting of the limiting member 8 to the height of the rotation ball hinge body, under the action of the load of the upper structural member, the height of the rotation ball hinge body is lowered until the permanent support or temporary support on the side of the rotation ball hinge body bears the load of the upper structural member;
[0035] S4: removing the rotation ball hinge body to complete the construction.
[0036] Optionally, the height of the rotation ball hinge body is changed by the relative sliding of the two wedge-shaped blocks 3, and the limiting member 8 is used to limit the relative sliding of the two wedge-shaped blocks 3. When the rotation ball hinge body needs to be removed, the limiting member 8 is adjusted, and under the action of the load of the upper structural member, the two wedge-shaped blocks are close to each other, and the height of the rotation ball hinge body is lowered to a set value.
[0037] In this embodiment, as Figure 1As shown, the swivel spherical hinge body with height adjustment function is installed by bolt fixing between the lower structural member (pier column) and the upper structural member (beam body), and the upper structural member can also be a pier column, and the corresponding lower member is a pile cap, so that the swivel spherical hinge body bears the load of the upper structural member, the limiting member 8 is installed, and the limiting member 8 is locked by the limiting bolt 15 to avoid the change of the height of the rotating spherical hinge body. Then, the power system and auxiliary measures required for the swivel of the upper structural member are prepared, the swivel construction is carried out according to the requirements of the preset scheme, when the swivel construction is completed and the permanent support or temporary support (jack) is installed in place, the bolt 13 between the swivel spherical hinge body and the beam is removed, the limiting bolt 15 is loosened, the locking of the limiting member 8 is released, and the limiting member 8 is taken out, so that a gap appears between the two wedge-shaped blocks 3, the two wedge-shaped blocks 3 are folded in the middle under the gravity of the upper structural member, and the height of the swivel spherical hinge body is reduced to the set value. The set value is the height of the swivel spherical hinge body when the swivel spherical hinge body is separated from the upper structural member, the temporary support completely bears the load of the upper structural member, or the permanent support completely bears the load. After the bolt 13 between the swivel spherical hinge body and the pier is removed, the swivel spherical hinge body can be taken out by using a special tool, so that the swivel spherical hinge body can be recycled without jacking the upper structural member, the cost is reduced, and the economy is good. Compared with the traditional pier bottom swivel, the pier top swivel is adopted, and the load borne by the swivel spherical hinge body is only the weight of the upper structural member, so that the tonnage of the swivel spherical hinge body is greatly reduced, and the cost is lower.
[0038] Example 2
[0039] A swivel spherical hinge is applied to the construction process described above, and the swivel spherical hinge body is installed between the lower structural member and the upper structural member. The upper end and the lower end of the swivel spherical hinge body are respectively provided with an upper anchor pad 1 fixed to the bottom surface of the upper structural member and a lower anchor pad 6 fixed to the top surface of the lower structural member. The swivel spherical hinge body includes a rotating body and an adjusting mechanism for adjusting the height of the swivel spherical hinge body, and the adjusting mechanism is connected to the upper end or the lower end of the rotating body.
[0040] In this embodiment, as shown in Figure 2As shown, the upper anchor pad 1 and the lower anchor pad 6 are connected with the upper structure and the lower structure respectively through anchor bolts 14, and the swivel spherical hinge body is arranged between the upper anchor pad 1 and the lower anchor pad 6, which is equivalent to arranging the swivel spherical hinge body at the top of the pier. Compared with the swivel at the bottom of the pier, the swivel at the top of the pier has the following advantages: the rotating weight is greatly reduced, the swivel device is reduced, the construction control difficulty is reduced, the efficiency is improved, and the economy is good. The swivel spherical hinge body mainly comprises a rotating body and an adjusting mechanism. The rotating body is used to realize the swivel of the bridge, and the adjusting mechanism is used to adjust the height of the swivel spherical hinge body. The adjusting mechanism is installed at the upper end or the lower end of the rotating body. The rotating body and the adjusting mechanism jointly realize the transmission of the force of the upper structure to the lower structure, realize the supporting function under normal working conditions, and after the swivel of the upper structure is completed, temporary supports (which can be jacks or a plurality of supporting structures such as pads) can be arranged around the swivel spherical hinge body, or permanent supports can be arranged instead of the temporary supports. Under the load of the upper structure, the height adjusting function of the adjusting mechanism is combined, the upper structure is lowered to the temporary supports to bear the load, and then the swivel spherical hinge body can be taken out, or the swivel spherical hinge body can be directly lowered by the lowering function of the swivel spherical hinge body. The permanent supports between the pier and the beam completely bear the load, and then the swivel spherical hinge body is taken out, realizing recycling and reducing the cost.
[0041] Further, the adjusting mechanism is connected to the upper end of the rotating body, and the adjusting mechanism comprises an upper seat plate 2 and two wedge-shaped blocks 3. The upper seat plate 2 is connected with the upper anchor pad 1 through a bolt 13. The bottom surface of the upper seat plate 2 is provided with two inclined surfaces symmetrically. The top surface of the wedge-shaped block 3 is matched with the inclined surface, and the bottom surface of the wedge-shaped block 3 is in contact with the top surface of the rotating body. The bottom surface of the upper seat plate 2 and the top surface of the rotating body form a sliding cavity 7 for the relative sliding of the two wedge-shaped blocks 3. A limiting piece 8 is arranged between the two wedge-shaped blocks 3. Specifically, the adjusting mechanism is connected to the upper end of the rotating body, and the adjusting mechanism mainly comprises an upper seat plate 2 and two wedge-shaped blocks 3. The bottom surface of the upper seat plate 2 is two symmetrical inclined surfaces, which form a V shape. The two inclined surfaces and the rotating body form a sliding cavity 7. The two wedge-shaped blocks 3 are symmetrically arranged in the sliding cavity 7. The bottom surface of the wedge-shaped block 3 is in plane contact with the top surface of the rotating body, and the top surface of the wedge-shaped block 3 is an inclined surface matched with the bottom surface of the upper seat plate 2. Under the action of external force, the two wedge-shaped blocks 3 can slide relatively in the sliding cavity 7, so as to change the height of the upper seat. The limiting piece 8 is arranged between the two wedge-shaped blocks 3, which can ensure that the two wedge-shaped blocks 3 will not move relatively close during the swivel, thereby ensuring the normal swivel. After the swivel is completed, temporary supports (not shown in the figure) are installed around the swivel spherical hinge body, the anchor bolts 14 of the upper anchor pad 1 are unscrewed, and the limiting piece 8 is taken out from between the two wedge-shaped blocks 3, so that a gap is formed between the two wedge-shaped blocks 3. The sliding coefficients of the upper and lower surfaces of the wedge-shaped block 3 are both less than 0.03. Under the action of the gravity of the upper structure, the two wedge-shaped blocks 3 are drawn to the middle, the height of the swivel spherical hinge body is reduced, the upper seat plate 2 is separated from the upper anchor pad 1, and the temporary supports bear the load. Then, the swivel spherical hinge body can be taken out by using special tools, realizing the recycling of the device and saving the cost.
[0042] Further, the limiting member 8 is a left adjusting plate 81 and a right adjusting plate 82, and the contact surfaces of the left adjusting plate 81 and the right adjusting plate 82 are mutually adapted sliding inclined surfaces. Specifically, as shown in the figure, along the length direction of the two wedge-shaped blocks, the relative position between the left adjusting plate 81 and the right adjusting plate 82 is adjusted, so that the two wedge-shaped blocks 3 can slide towards the middle, and the height of the upper seat plate 2 can be lowered, thereby lowering the height of the entire ball hinge body, and lowering the height of the upper structure, until the temporary support completely bears the load of the upper structure. Figure 3
[0043] Further, the outer side of the left adjusting plate 81 and the right adjusting plate 82 is provided with a limiting bolt 15 for limiting the relative sliding of the left adjusting plate 81 and the right adjusting plate 82, and the limiting bolt 15 is threadedly connected with a limiting frame 16 fixed to the front and rear ends of the upper seat plate 2. Specifically, in order to further avoid the mutual approach of the two wedge-shaped blocks 3 under the pressure of the upper structure during the rotation, a limiting frame 16 is fixed to the front and rear end surfaces of the upper seat plate 2, and a limiting bolt 15 is threadedly connected with the limiting frame 16, the limiting bolt 15 is directed towards the length direction of the wedge-shaped block 3, and the limiting bolt 15 is screwed to the position where it contacts the end surface of the wedge-shaped block 3, so that the relative sliding between the left adjusting plate 81 and the right adjusting plate 82 is limited, and the mutual approach of the two wedge-shaped blocks 3 during the rotation is prevented, and through the two changes of the wedge-shaped block 3 and the two adjusting plates, the vertical force of the rotation ball hinge body is converted into the horizontal force of the two adjusting plates, and the horizontal force of the two adjusting plates is about 0.3% of the vertical force of the rotation ball hinge body, when the vertical force of the rotation ball hinge body is 145000KN, the horizontal force of the two adjusting plates is about 520KN, and the limiting can be realized by using a M48 limiting bolt 15. After the rotation is completed, a temporary support (jack) is installed around the rotation ball hinge body, the anchor bolt 14 of the upper anchor pad 1 is unscrewed, and the limiting bolt 15 of the left adjusting plate 81 and the right adjusting plate 82 is loosened, the two adjusting plates are removed, a gap is formed in the middle of the two wedge-shaped blocks 3, and under the gravity of the upper structure, the two wedge-shaped blocks 3 are closed towards the middle, the height of the rotation ball hinge body is lowered, the upper seat plate 2 is separated from the upper anchor pad 1, and the temporary support bears the load, so that the rotation ball hinge body can be taken out by using a special tool, the recycling of the rotation ball hinge body without the support beam is realized, and the cost is saved.
[0044] Embodiment 3
[0045] Further, the rotating body includes an upper ball plate 4 and a lower ball plate 5 connected by rotation, the lower ball plate 5 is connected with the lower anchor pad 6 through a bolt 13, the upper ball plate 4 is connected with the upper seat plate 2 through a bolt 13, the bottom surface of the upper ball plate 4 is a convex spherical surface, and the top surface of the lower ball plate 5 is a concave spherical surface matched with the convex spherical surface.
[0046] Further, the lower ball plate 5 top surface center position is provided with an upward protruding positioning pin 9, and the upper ball plate 4 bottom surface center is provided with an upward recessed pin hole 10 matched with the positioning pin 9, and the positioning pin 9 and the pin hole 10 are rotationally connected. Specifically, as shown in Figure 1 After the body of the swivel ball hinge is installed, a gap of more than 5mm is designed between the upper seat plate 2 and the upper ball plate 4 and is coupled and fixed by the bolt 13, so that the vertical force of the upper structural member is transmitted to the pier through the upper anchor pad 1, the upper seat plate 2, the wedge block 3, the upper ball plate 4, the lower ball plate 5, and the lower anchor pad 6. The two adjusting plates and the wedge block 3 only bear the vertical force and do not bear the horizontal force of the swivel ball hinge during the swivel construction. The horizontal force of the upper structural member during the swivel construction is transmitted to the upper ball plate 4 through the bolt 13 between the upper seat plate 2 and the upper ball plate 4, and rotates in the plane with the positioning pin 9 as the center, and then the swivel construction is completed.
[0047] Further, the lower ball plate 5 and the lower anchor pad 6 are provided with a planar sliding plate 12 embedded in the top surface of the lower anchor pad 6. Specifically, the planar sliding plate 12 is made of polytetrafluoroethylene material and has a very small friction coefficient. After the height of the swivel ball hinge body is lowered into place, only a horizontal pulling force of 5% of the weight of the swivel ball hinge body is needed to pull the swivel ball hinge body out of the beam bottom, and then the swivel ball hinge body is placed on the ground by the crane, realizing the extraction of the swivel ball hinge body.
[0048] Further, the concave surface of the lower ball plate 5 is embedded with a matched spherical sliding plate 11. Specifically, the spherical sliding plate 11 is made of polytetrafluoroethylene material and has better wear resistance, prolonging the service life of the rotating body and also having a smaller friction coefficient, so that the relative rotation between the upper ball plate 4 and the lower ball plate 5 is more smooth, and thus the swivel construction is more smooth and efficient.
[0049] The taking-out principle of the swivel spherical hinge body in the scheme is as follows: after the swivel spherical hinge body is installed, the vertical force of the upper structural member is transmitted to the pier through the upper anchor pad plate 1, the upper seat plate 2, the wedge-shaped block 3, the upper spherical plate 4, the lower spherical plate 5 and the lower anchor pad plate 6. The adjusting plate and the wedge-shaped block 3 only bear the vertical force and do not bear the horizontal force of the spherical hinge during the swivel construction. During the swivel construction of the upper structural member, the horizontal force is transmitted to the upper spherical plate 4 through the bolt 13 between the upper seat plate 2 and the upper spherical plate 4, and the upper structural member rotates in a plane with the positioning pin 9 as the center to realize the swivel construction. When the swivel construction is completed and the permanent support or the temporary support is installed in place, the bolt 13 of the upper anchor pad plate 1 is unscrewed, the limiting bolt 15 of the two adjusting plates is loosened, the adjusting plate is taken out, a gap appears in the middle of the two wedge-shaped blocks 3, the upper seat plate 2 is lowered under the action of the gravity of the upper structural member, the two wedge-shaped blocks 3 are folded to the middle, the height of the upper seat plate 2 is lowered, the upper seat plate 2 is spaced from the upper anchor pad plate 1, and then the bolt 13 on the lower anchor pad plate 6 is unscrewed. Therefore, the swivel spherical hinge body can be taken out by using a special tool, the swivel spherical hinge body can be recycled without jacking the upper structural member, and the cost is reduced.
[0050] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. According to the technical essence of the present application, any simple modification, equivalent replacement and improvement of the above embodiment within the spirit and principle of the present application are still within the protection scope of the technical scheme of the present application.
Claims
1. A rotating ball joint, applied in a self-lifting beam rotation construction process, comprising a rotating ball joint body, characterized in that, The rotating ball hinge body is installed between the lower structural member and the upper structural member. The upper end of the rotating ball hinge body is provided with an upper anchor plate (1) fixed to the bottom surface of the upper structural member, and the lower end of the rotating ball hinge body is provided with a lower anchor plate (6) fixed to the top surface of the lower structural member. The rotating ball hinge body includes a rotating body and an adjustment mechanism for adjusting the height of the rotating ball hinge body. The adjustment mechanism is connected to the upper end of the rotating body. The adjustment mechanism is connected to the upper end of the rotating body. The adjustment mechanism includes an upper seat plate (2) and two wedge blocks (3). The upper seat plate (2) is connected to the upper anchor plate (1) by bolts (13). The bottom surface of the upper seat plate (2) is symmetrically provided with two inclined surfaces. The top surface of the wedge block (3) is adapted to the inclined surface. The bottom surface of the wedge block (3) is in contact with the top surface of the rotating body. The bottom surface of the upper seat plate (2) and the top surface of the rotating body form a sliding cavity (7) for the relative sliding of the two wedge blocks (3). A limiting member (8) is provided between the two wedge blocks (3). The limiting member (8) is a left adjusting plate (81) and a right adjusting plate (82) in the shape of two wedges. The contact surfaces of the left adjusting plate (81) and the right adjusting plate (82) are mutually compatible sliding inclined surfaces. The left adjustment plate (81) and the right adjustment plate (82) are provided with limiting bolts (15) on their outer sides to restrict the relative sliding of the left adjustment plate (81) and the right adjustment plate (82). The limiting bolts (15) are threadedly connected to the limiting frame (16) fixed to the front and rear ends of the upper seat plate (2).
2. The spherical joint according to claim 1, characterized in that, The rotating body includes an upper ball plate (4) and a lower ball plate (5) that are rotatably connected. The lower ball plate (5) has a gap with the lower anchor plate (6) and is connected by bolts (13). The upper ball plate (4) is connected to the upper seat plate (2) by bolts (13). The bottom surface of the upper ball plate (4) is a convex spherical surface, and the top surface of the lower ball plate (5) is a concave spherical surface that is adapted to the convex spherical surface.
3. A spherical joint according to claim 2, characterized in that, The lower ball plate (5) has a locating pin (9) protruding upward at the center of its top surface, and the upper ball plate (4) has a pin hole (10) that is recessed upward and adapted to the locating pin (9) at the center of its bottom surface. The locating pin (9) and the pin hole (10) are rotatably connected.
4. A rotating ball joint according to claim 3, characterized in that, A planar sliding plate (12) is provided between the lower ball plate (5) and the lower anchor plate (6), and a matching spherical sliding plate (11) is embedded on the concave spherical surface of the lower ball plate (5).
5. A spherical joint according to claim 1, characterized in that, The upper anchor plate (1) and the lower anchor plate (6) are connected to the upper structural component and the lower structural component respectively by anchor bolts (14).
Citation Information
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Precast beam hoisting positioner and precast beam hoisting construction method
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Conversion type friction pendulum damping force-measuring support with height adjusting capability
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