Damping type radial spherical plain bearing node

Abstract

The utility model discloses a damping type radial spherical plain bearing node which comprises a support base plate, a first lug plate and a second lug plate are fixedly installed at the two ends of the support base plate respectively, and a pin shaft is installed between the first lug plate and the second lug plate. A viscous damping mechanism, a bearing mechanism, a third lug plate and a spring mechanism are sequentially and tightly arranged on the pin shaft in a sleeving manner; the viscous damping mechanism is arranged between the first lug plate and the third lug plate, the bearing mechanism is rotationally installed in a lug hole of the third lug plate, and the spring mechanism is arranged between the second lug plate and the third lug plate. The shock absorption type radial spherical plain bearing node has the advantages of universal rotation, clear stress, simplicity in manufacturing and mounting, small node size and the like while solving the problems of temperature stress and earthquake action, and solves the problems of large temperature stress, large earthquake response, large node size and the like of the existing super-long and large-span space steel structure; wide popularization and application prospects are realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of engineering construction, especially a shock attenuation type centripetal joint bearing node. BACKGROUND

[0002] In recent decades, with the continuous progress of industrial technology and the continuous improvement of people's requirements for building engineering effect, some large sports venues, railway transport hub passenger stations, airport terminal buildings, exhibition centers and other super-long, large-span space steel structures have emerged in various parts of the world. There are two most difficult problems for such structures: temperature stress and earthquake action. Large public buildings have high requirements for building effects, and such projects often do not have the possibility to set up structural expansion joints.

[0003] Therefore, how to solve the internal force change of the support caused by the temperature stress in the super-long roof plane is the biggest problem of such projects. The utility model discloses a shock attenuation type centripetal joint bearing node, which is provided with a butterfly spring in the direction of the pin shaft of the traditional centripetal joint bearing node. When the roof is subjected to temperature load and the stress of the support changes, the internal force change of the support in each direction caused by the temperature stress can be released through the rotation or offset of the node.

[0004] The large number of roof layer components of large roof steel structure projects results in large roof layer load, and accordingly, under the action of the earthquake, the earthquake load of the roof layer is large. The utility model discloses a shock attenuation type centripetal joint bearing node, which is provided with a viscous damper in the direction of the pin shaft of the traditional centripetal joint bearing node. The damping effect is achieved by utilizing the damping action.

[0005] The significance of solving the above technical problems is that, compared with the traditional support node, the shock attenuation type centripetal joint bearing node of the utility model solves the temperature stress and the earthquake action, has the advantages of universal rotation, clear stress, simple production and installation, small node volume, etc., and has a wide popularization and application prospect. UTILITY MODEL CONTENTS

[0006] According to the above-mentioned problems, the utility model provides a shock attenuation type centripetal joint bearing node, and the specific scheme is as follows:

[0007] A shock attenuation type centripetal joint bearing node, comprising a support bottom plate, the two ends of the support bottom plate are respectively fixedly installed with a first ear plate and a second ear plate, and a pin shaft is installed between the first ear plate and the second ear plate; a viscous damping mechanism, a bearing mechanism, a third ear plate and a spring mechanism are sequentially and closely sleeved on the pin shaft;

[0008] The viscous damping mechanism is arranged between the first ear plate and the third ear plate, the bearing mechanism is rotatably installed in the ear hole of the third ear plate, and the spring mechanism is arranged between the second ear plate and the third ear plate.

[0009] Preferably, the bearing mechanism includes an inner bearing ring, an outer bearing ring, and a pair of bearing caps;

[0010] A pair of bearing caps are respectively installed on both sides of the third ear plate. Multiple small holes are distributed in a ring along the shaft diameter on the bearing caps. A set of high-strength bolts passes through the small holes and is fixedly fitted with each other to the multiple small holes distributed in a ring on the third ear plate, thereby installing the outer ring of the bearing in the ear hole of the third ear plate. The outer ring of the bearing and the inner ring of the bearing slide and fit together, and the inner ring of the bearing is rotatably sleeved on the pin.

[0011] An annular groove is provided on the outer side of the bearing cap, and the viscous damping mechanism is slidably connected to the annular groove.

[0012] More preferably, a pair of locating rings are threaded onto the pin shaft to fix the inner ring of the bearing between the pair of locating rings.

[0013] Preferably, the viscous damping mechanism includes a viscous damper, and the viscous damper has a plurality of viscous damper push rods arranged in a ring along the shaft diameter, and the viscous damper push rods are slidably connected to the annular groove on the bearing cover.

[0014] Preferably, the spring mechanism includes a butterfly spring, which is sleeved on the pin, and the two ends of the butterfly spring are welded to the third ear plate and the second ear plate, respectively.

[0015] Preferably, the outer sides of the first ear plate and the second ear plate are respectively fixedly installed with a pin cover plate by a high-strength bolt group, and the pin is fixed between the first ear plate and the second ear plate by the pin cover plate.

[0016] Preferably, the first ear plate, the second ear plate, and the support base plate are connected by welds.

[0017] Preferably, lubricant is used between the pin and the inner ring of the bearing, between the inner ring of the bearing and the outer ring of the bearing, and between the outer ring of the bearing and the third lug plate, so that the contact surfaces can rotate.

[0018] Preferably, the upper limit of the left and right displacement of the radial joint bearing node can be controlled by adjusting the distance between the third ear plate and the first and second ear plates, the size and stiffness of the disc spring, according to the actual design requirements; the upper limit of the rotation angle of the radial joint bearing node can be adjusted by adjusting the size of the bearing inner ring and the bearing outer ring, the curvature of the contact surface between the bearing inner ring and the bearing outer ring, and the position of the positioning ring.

[0019] The beneficial effects of this utility model are:

[0020] 1. By utilizing the sliding of the pin and the rotation of the bearing mechanism, the bearing node is able to rotate axially around the pin and along the pin, providing more possibilities for engineering design;

[0021] 2. By utilizing the stiffness of the disc spring, reliable support can be provided in the direction of the pin shaft when the components connected to the third ear plate, the first ear plate, and the second ear plate translate along the pin shaft axis, effectively releasing the temperature stress under normal operating conditions and reducing structural joints.

[0022] 3. By utilizing the damping effect of viscous dampers, the seismic response of the structure is reduced during an earthquake, thereby optimizing the cross-sectional dimensions of the components connected to the third ear plate, the first ear plate, and the second ear plate;

[0023] 4. The components of this utility model have high processing and manufacturing precision, a wide range of material sources, simple installation and operation, large demand in the engineering field, and a wide range of applications. Attached Figure Description

[0024] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of this utility model. In addition, unless otherwise specified, these drawings are intended only to conceptually illustrate the structural construction described herein and are not necessarily drawn to scale.

[0025] Figure 1 This is a cross-sectional structural schematic diagram of the present invention;

[0026] Figure 2 This is an exploded structural diagram of the present invention;

[0027] In the picture:

[0028] 1-Bearing inner ring; 2-Bearing outer ring; 3-Third ear plate; 4-Bearing cover; 5-High-strength bolt assembly; 6-Positioning ring; 7-Pin; 81-First ear plate; 82-Second ear plate; 9-Support base plate; 10-Pin cover plate; 11-Viscous damper; 12-Viscous damper push rod; 13-Butterfly spring. Detailed Implementation

[0029] First, it should be noted that the specific structure, features, and advantages of this utility model will be described in detail below by way of examples. However, all descriptions are for illustrative purposes only and should not be construed as limiting the utility model in any way. Furthermore, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature shown or implied in the accompanying drawings, can still be arbitrarily combined or deleted among these technical features to obtain more other embodiments of this utility model that may not be directly mentioned herein. Additionally, for the sake of simplifying the drawings, the same or similar technical features may be indicated only in one place in the same drawing.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The following is in conjunction with the appendix Figure 1 -Appendix Figure 2 This utility model is described in detail.

[0032] Example 1:

[0033] A shock-absorbing radial joint bearing node includes a support base plate 9, with a first ear plate 81 and a second ear plate 82 fixedly installed at both ends of the support base plate 9, and a pin 7 installed between the first ear plate 81 and the second ear plate 82; a viscous damping mechanism, a bearing mechanism, a third ear plate 3 and a spring mechanism are sequentially and tightly sleeved on the pin 7.

[0034] The viscous damping mechanism is disposed between the first ear plate 81 and the third ear plate 3, the bearing mechanism is rotatably installed in the ear hole of the third ear plate 3, and the spring mechanism is disposed between the second ear plate 82 and the third ear plate 3.

[0035] In this embodiment, when the pin 7 is assembled with the first ear plate 81 and the second ear plate 82, a special tool is used to tighten the installation, and the contact surfaces are closely fitted.

[0036] Furthermore, in the embodiments, the bearing mechanism may include an inner bearing ring 1, an outer bearing ring 2, and a pair of bearing caps 4.

[0037] A pair of bearing caps 4 are respectively installed on both sides of the third ear plate 3. Multiple small holes are distributed in a ring along the shaft diameter on the bearing caps 4. High-strength bolts 5 pass through the small holes and are fixedly fitted with each other to the multiple small holes distributed in a ring on the third ear plate 3, so that the outer ring 2 of the bearing is installed in the ear hole of the third ear plate 3; the outer ring 2 of the bearing and the inner ring 1 of the bearing slide and fit together, and the inner ring 1 of the bearing is rotatably sleeved on the pin 7;

[0038] An annular groove is provided on the outer side of the bearing cap 4, and the viscous damping mechanism is slidably connected to the annular groove.

[0039] Furthermore, in the embodiments, a pair of positioning rings 6 can be threaded onto the pin 7 to fix the bearing inner ring 1 between the pair of positioning rings 6.

[0040] In this embodiment, the positioning ring 6 is fixed to the pin 7 by threads, thereby fixing the bearing inner ring 1 between the two positioning rings 6.

[0041] Furthermore, in the embodiments, the viscous damping mechanism may include a viscous damper 11, on which a plurality of viscous damper push rods 12 are provided in a ring along the shaft diameter, and the viscous damper push rods 12 are slidably connected to the annular groove on the bearing cover 4.

[0042] In this embodiment, the viscous damper push rod 12 is placed in the reserved annular groove of the bearing cover 4. The groove is arranged in a ring along the bearing cover plate 4, and lubricant is applied between them to ensure that the viscous damper push rod 12 can be in close contact with the annular groove and can slide.

[0043] Furthermore, in the embodiments, the spring mechanism may include a butterfly spring 13, which is sleeved on the pin 7, and the two ends of the butterfly spring 13 are respectively welded to the third ear plate 3 and the second ear plate 82.

[0044] In this embodiment, the third ear plate 3 is connected to the second ear plate 82 by a butterfly spring (13), and the third ear plate 3 is connected to the first ear plate 81 by a viscous damper 11. By utilizing the stiffness of the butterfly spring 13, the third ear plate 3 can move axially along the pin 7 without detaching.

[0045] Furthermore, in the embodiments, it can also be considered that the outer sides of the first ear plate 81 and the second ear plate 82 are respectively fixedly installed with a pin cover plate 10 by a high-strength bolt group 5, and the pin 7 is fixed between the first ear plate 81 and the second ear plate 82 by the pin cover plate 10.

[0046] Furthermore, in the embodiments, it can also be considered that the first ear plate 81, the second ear plate 82 and the support base plate 9 are welded together.

[0047] In this embodiment, after the weld is connected, the welded parts are treated with rust prevention. All sliding and rotating movements of the support base plate 9 will not cause displacement or rotation of the first ear plate 81, the second ear plate 82 and the support base plate 9.

[0048] Furthermore, in the embodiments, lubricant can be used between the pin 7 and the inner ring 1 of the bearing, between the inner ring 1 of the bearing and the outer ring 2 of the bearing, and between the outer ring 2 of the bearing and the third lug 3, so that the contact surfaces can rotate.

[0049] In this embodiment, the inner ring 1 of the bearing and the pin 7, and the outer ring 2 of the bearing and the third lug 3 are in close contact and can slide, enabling the present invention to achieve the function of axial rotation around the pin 7.

[0050] Furthermore, in the embodiments, it can be considered that, according to actual design needs, the upper limit of the left and right displacement of the radial joint bearing node can be controlled by adjusting the distance between the third ear plate 3 and the first ear plate 81 and the second ear plate 82, the size and stiffness of the butterfly spring 13; and the upper limit of the rotation angle of the radial joint bearing node can be adjusted by adjusting the size of the bearing inner ring 1 and the bearing outer ring 2, the curvature of the contact surface between the bearing inner ring 1 and the bearing outer ring 2, and the position of the positioning ring 6.

[0051] In this embodiment, the inner ring 1 and the outer ring 2 of the bearing are in close contact and can slide. By adjusting the bearing size, the curvature of the contact surface between the bearings and the position of the positioning ring 6, the upper limit of the rotation angle of the radial joint bearing node is adjusted, so as to realize the function of the node rotating along the pin shaft axis.

[0052] Furthermore, in the embodiments, the support base plate 9 can be a circular or rectangular steel plate, or, depending on the engineering requirements, a beam or column member.

[0053] Furthermore, in the embodiments, the viscous damper 11 can also be considered as a velocity-type damper.

[0054] In this embodiment, under seismic loading, the support can utilize the damping effect of the viscous damper 11 to reduce the seismic response of the structure. During structural design, the damping parameters of the damper can be determined according to calculation requirements, and pre-made viscous dampers 11 can be custom-purchased.

[0055] Working principle:

[0056] According to the needs of the project, the components of the support node can be customized, especially the key components such as viscous damper 11, disc spring 13, bearing inner ring 1, and bearing outer ring 2, which are customized according to the design data such as stiffness, damping, displacement, and rotation angle. Everything is customized according to the on-site requirements.

[0057] When inserting the pin 7 using a special tool, insert and install it in the following order: first ear plate 81, viscous damper 11, first bearing cover 4, first positioning ring 6, bearing inner ring 1, second positioning ring 6, second bearing cover 4, disc spring 13, and second ear plate 82. Finally, use the pin cover plate 10 to seal and fix the pin 7 on the outside of the first ear plate 81 and the second ear plate 82.

[0058] This utility model includes a pin 7, a butterfly spring 13, a viscous damper 11, and a support base plate 9. The inner bearing ring 1 is nested inside the outer bearing ring 2, and the inner bearing ring 1 and the outer bearing ring 2 are then placed inside a third ear plate 3. The outer bearing ring 2 is fixed in the ear hole of the third ear plate 3 by a bearing cap 4 and a high-strength bolt group 5. The inner bearing ring 1 is fixed to the middle of the pin 7 by the pin 7 and a positioning ring 6, and the pin 7 is then fixed to the inner side of the first ear plate 81 and the second ear plate 82 by the high-strength bolt group 5 and the pin cap plate 10. The viscous damper 11 is fixed to the ear plate of the first ear plate 81, and the viscous damper push rod 12 is placed in the annular groove in the center of the bearing cap 4. The first ear plate 81, the second ear plate 82, and the support base plate 9 are connected by welds.

[0059] This utility model achieves universal hinge by adding bearings, butterfly springs 13 and viscous dampers 11 to traditional support nodes and utilizing the bearings set at the joints to enable axial rotation around pin 7 and axial rotation along pin 7.

[0060] Utilizing the stiffness provided by the disc spring 13, the radial joint bearing node can extend the pin shaft 7 for translation, release temperature stress, reduce internal forces in the component, thereby optimizing the component cross-section and reducing or eliminating structural expansion joints. Through the damping effect of the viscous damper 11, the radial joint bearing node possesses vibration reduction function, reducing the seismic response of large-span steel structures. This node, possessing functions of releasing temperature stress, universal hinge, and vibration reduction, has advantages such as simple manufacturing, clear force transmission, and wide application, and can be widely used in hinged support nodes of large roof steel structure projects.

[0061] The above embodiments have provided a detailed description of the present invention, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made in accordance with the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A shock-absorbing type of a spherical plain bearing node, characterized by: It includes support base plate (9), both ends of support base plate (9) are fixedly installed first ear plate (81) and second ear plate (82) respectively, pin shaft (7) is installed between first ear plate (81) and second ear plate (82);Viscous damping mechanism, bearing mechanism, third ear plate (3) and spring mechanism are successively closely set on pin shaft (7); Viscous damping mechanism is arranged between first ear plate (81) and third ear plate (3), bearing mechanism is rotatably installed in ear hole of third ear plate (3), spring mechanism is arranged between second ear plate (82) third ear plate (3).

2. The shockable type of radial spherical plain bearing node according to claim 1, characterized in that: Bearing mechanism includes bearing inner ring (1), bearing outer ring (2) and a pair of bearing gland (4); A pair of bearing gland (4) is installed on both sides of third ear plate (3) respectively, a plurality of small holes are annularly distributed on bearing gland (4), high-strength bolt group (5) passes through small hole and is fixedly embedded with the annularly distributed multiple small holes on third ear plate (3), bearing outer ring (2) is installed in ear hole of third ear plate (3);Bearing outer ring (2) and bearing inner ring (1) are slidably embedded, bearing inner ring (1) is rotatably set on pin shaft (7); The outer side of the bearing gland (4) is reserved with an annular groove, and the viscous damping mechanism is slidably connected with the annular groove.

3. The shockable type of radial spherical plain bearing node according to claim 2, characterized in that: A pair of positioning rings (6) are threadedly connected on the pin shaft (7), and the bearing inner ring (1) is fixed between the pair of positioning rings (6).

4. The shockable type of radial spherical plain bearing node according to claim 2, characterized in that: The viscous damping mechanism includes viscous damper (11), a plurality of viscous damper push rods (12) are annularly arranged on viscous damper (11), and the viscous damper push rods (12) are slidably connected with the annular grooves on the bearing gland (4).

5. The shockable type of radial spherical plain bearing node according to claim 1, characterized in that: The spring mechanism includes butterfly spring (13), the butterfly spring (13) is set on the pin shaft (7), and the two ends of the butterfly spring (13) are welded with the third ear plate (3) and the second ear plate (82) respectively.

6. The shockable type of radial spherical plain bearing node of claim 1, characterized in that: The outer sides of the first ear plate (81) and the second ear plate (82) are fixedly installed with pin shaft cover plate (10) through high-strength bolt group (5), and the pin shaft (7) is fixed between the first ear plate (81) and the second ear plate (82) through the pin shaft cover plate (10).

7. The shockable type of radial spherical plain bearing node of claim 1, characterized in that: The first ear plate (81), the second ear plate (82) and the support base plate (9) are connected by welding.

8. The shockable type of radial spherical plain bearing node according to claim 2, characterized in that: Lubricating liquid is used between the pin shaft (7) and the bearing inner ring (1), between the bearing inner ring (1) and the bearing outer ring (2), and between the bearing outer ring (2) and the third ear plate (3), so that the contact surfaces can rotate.

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