CN212925747U - Damping spherical bearing - Google Patents
Damping spherical bearing Download PDFInfo
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- CN212925747U CN212925747U CN202020775604.4U CN202020775604U CN212925747U CN 212925747 U CN212925747 U CN 212925747U CN 202020775604 U CN202020775604 U CN 202020775604U CN 212925747 U CN212925747 U CN 212925747U
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Abstract
The utility model discloses a damping spherical bearing belongs to bridge shock attenuation equipment technical field, including last anchor sleeve and lower anchor sleeve, go up anchor sleeve downside by last support plate, last plane slide, sphere welt, the retaining ring that shears, sphere slide, ball template, lower plane slide and bottom suspension bedplate respectively in proper order under to, its characterized in that, be provided with the damping ring between retaining ring that shears and the bottom suspension bedplate, the damping ring overlaps to be established in the ball template outside all around and forms the damping district with the ball template. The damping ring is arranged between the shear resisting check ring and the lower support plate, so that the damping ring and the shear resisting check ring are matched to form a closed damping area, when the spherical support vibrates and is subjected to large impact, the energy of vibration is consumed by utilizing sliding friction and damping friction, the motion energy is converted into heat energy or energy in other forms, and then the heat energy is dissipated, and the defect that the existing spherical support for the bridge does not have horizontal rigidity and damping is overcome.
Description
Technical Field
The utility model belongs to the technical field of bridge shock attenuation equipment, specifically relate to a damping ball bearing.
Background
With the development of modern high-speed railways, the specific gravity of bridges in railway routes is higher and higher. When earthquake disasters occur, the bridge is the most vulnerable part; the bridge seismic isolation and reduction support device is a feasible shock absorption method and is also a seismic technology which is developed more mature and widely applied at present. At present, the domestic main anti-seismic support devices comprise an anti-seismic basin-type rubber fixed support, a lead core rubber support, a friction pendulum type shock insulation support and the like.
From Wenchuan earthquake after, the design that the foreign bridge began to adopt rubber support to realize the earthquake power that disperses when the earthquake, and the back develops the shock insulation design that adopts rubber and metal shock insulation preparation again, and the vibration reduction and isolation design of domestic bridge begins to increase, has appeared on the market that lead core, high damping etc. subtract shock insulation rubber support and friction pendulum and subtract shock insulation support, and the product is uneven.
In recent years, the environment protection is more and more emphasized and the punishment is more and more strict. The damping ratio of the lead core support is larger than that of the high-damping shock insulation rubber support, so that the seismic energy can be effectively reduced, but the lead core support has certain pollution to the environment due to the fact that heavy metal lead is contained in the lead core support. And the damping of the high-damping support is relatively small, and some earthquake working conditions cannot meet the design requirements. In recent two years, ultrahigh damping shock insulation rubber support products appear, the damping ratio of the high damping support is improved to a certain extent, but the rubber formula and the process are complex, the cost is high, the product quality is not easy to control, and the using amount is small.
The working principle of the friction pendulum support is similar to that of a simple pendulum: the middle layer sliding block is made of high-strength compression-resistant materials, when the lower structure is subjected to earthquake displacement, the sliding surface of the sliding block always generates restoring force pointing to a balance position due to the gravity of the upper structure and the design of the arc-shaped lower bottom plate sliding surface, and energy is dissipated through friction between the sliding block and the sliding surface in the whole earthquake process. However, the friction coefficient of the type of support has a great relationship with the manufacturing process, the friction coefficients of products produced by various manufacturers are also very different, and even if the products of the same manufacturer are produced, the friction coefficients of products in each batch are also very different; most importantly, the lifting of the beam body can be caused after the earthquake displacement is generated, and a large additional internal force of the beam body is caused. Meanwhile, the horizontal rigidity of the support and the counter force of the support are continuously changed.
Disclosure of Invention
The utility model aims to provide a: in order to solve the technical problem, a damping spherical support is provided.
The utility model adopts the technical scheme as follows:
a damping spherical damping support comprises an upper anchoring sleeve and a lower anchoring sleeve, wherein the lower side of the upper anchoring sleeve is provided with an upper support plate, an upper plane sliding plate, a spherical lining plate, a shear-resistant check ring, a spherical sliding plate, a spherical plate, a lower plane sliding plate and a lower support plate from top to bottom in sequence, a damping ring is arranged between the shear-resistant check ring and the lower support plate, and the damping ring is sleeved on the periphery of the spherical plate and forms a damping area with the spherical plate.
The utility model discloses a further preferred, it has the groove of shearing to set up on the bottom suspension bedplate, and the inslot that shears is provided with the shear pin, and the retaining ring that shears fixes through the shear pin.
The utility model discloses a further preferred, the damping ring is soft structure, adopts macromolecular material.
The utility model discloses a further preferred, the material of upper bracket board, bottom suspension bedplate, last plane slide, ball template, lower plane slide and sphere slide is the steel material.
The utility model discloses a further preferred, upper bracket board has the roof beam body through last anchor muffjoint, lower bedplate is connected with the pier through lower anchor muffjoint
The working principle is as follows:
(I) Normal use status
In a normal use state, the support has three functions: a load bearing function, a displacement function and a rotation function.
(1) Bearing function
The vertical force transmission path of the beam body is as follows: beam → upper anchor sleeve → upper support plate → upper plane sliding plate → spherical lining plate → spherical sliding plate → spherical plate → lower plane sliding plate → lower support plate → pier
The horizontal force series path of the beam body is as follows: beam → anchor sleeve → upper support plate → shear collar → shear pin → lower support plate → abutment.
The bearing function of the support is stressed definitely.
(2) Function of displacement
The mirror surface stainless steel plate in the upper bracket plate and the plane sliding plate form a plane sliding pair to realize the displacement function. Meanwhile, a side plane sliding pair is formed by a stop block at the side of the upper support plate and the side surface of the spherical lining plate, and the restraint support can only slide in one direction.
(3) Rotation function
The spherical lining plate and the spherical plate form a spherical sliding pair to realize the rotation function of the support.
And (II) when the horizontal force of the earthquake reaches a certain degree in the earthquake working state, the shear pin of the lower support plate is sheared off, the sliding pair formed by the plane sliding plate and the lower support plate is opened, and meanwhile, the damping ring starts to be continuously compressed, unfolded and deformed. The damping ring, once deformed, provides 360 ° horizontal stiffness and damping to the lower mount. The rigidity can prolong the structure period, avoid causing the structure resonance, the damping characteristic can consume the earthquake energy, all can reduce the destruction that the earthquake caused to the bridge by a wide margin.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the utility model discloses a through set up the damping ring between shear-resistant retaining ring and bottom suspension fagging, make damping ring and shear-resistant retaining ring cooperate and form a confined damping region, when taking place to vibrate and receiving great impact to the spherical bearing, utilize sliding friction and damping friction to consume the energy of vibration, transform the kinetic energy into heat energy or energy of other forms and then dissipate away, improve the shortcoming that the spherical bearing for current bridge does not have horizontal rigidity and damping, provide bridge horizontal rigidity and damping, lengthen the structure cycle, avoid causing structural resonance, the two-stage antidetonation protection of bearing, prevent falling the roof beam, bearing horizontal rigidity is stable, earthquake displacement does not have roof beam body jacking, can not produce additional internal stress for the roof beam body, friction power consumption and damping material double power consumption, consume more seismic energy, compare with prior art, the utility model discloses simple structure, the cost is handed over, the advantage that the main body material of the spherical support is steel is kept, and the safety and the durability are higher than those of a rubber support.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of the present invention when displacement occurs.
Reference numerals: 1-upper anchoring sleeve, 2-upper support plate, 3-upper plane sliding plate, 4-spherical lining plate, 5-shear-resistant retainer ring, 6-shear-resistant pin, 7-damping ring, 8-spherical sliding plate, 9-spherical plate, 10-lower plane sliding plate and 11-lower support plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limiting the invention, i.e., the described embodiments are merely a few embodiments, rather than all embodiments, and that all features disclosed in this specification, or all methods or process steps disclosed, may be combined in any suitable manner, except for mutually exclusive features and/or steps.
It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," "tail," and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships illustrated in the drawings, are used for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The present invention will be described in detail with reference to fig. 1 and 2.
The first embodiment is as follows: the utility model provides a damping spherical bearing, including last anchor sleeve 1 and lower anchor sleeve, it is upper bracket board 2 respectively by last to lower in proper order to go up anchor sleeve 1 downside, go up plane slide 3, sphere welt 4, retaining ring 5 shears, sphere slide 8, sphere board 9, lower plane slide 10 and lower support plate 11, be provided with damping ring 7 between retaining ring 5 and the lower support plate 11 shears, damping ring 7 cover is established in sphere board 9 outside all around and forms the damping region with sphere board 9, set up on the lower support plate 11 and have been put the groove of shearing, the inslot that shears is provided with shear pin 6 shears, retaining ring 5 shears is fixed through shear pin 6 shears, damping ring 7 is soft structure, adopt macromolecular material, upper bracket board 2, lower support plate 11, go up plane slide 3, sphere board 9, lower plane slide 10 and sphere slide 8 material are the steel material.
The working principle is as follows:
(I) Normal use status
In a normal use state, the support has three functions: a load bearing function, a displacement function and a rotation function.
(1) Bearing function
The vertical force transmission path of the beam body is as follows: beam → upper anchoring sleeve 1 → upper support plate 2 → upper plane sliding plate 3 → spherical lining plate 4 → spherical sliding plate 8 → spherical plate 9 → lower plane sliding plate 10 → lower support plate 11 → abutment
The horizontal force series path of the beam body is as follows: beam → anchor sleeve → upper support plate 2 → shear collar 5 → shear pin 6 → lower support plate 11 → abutment.
The bearing function of the support is stressed definitely.
(2) Function of displacement
The mirror surface stainless steel plate in the upper support plate 2 and the plane sliding plate form a plane sliding pair to realize the displacement function. Meanwhile, a side plane sliding pair is formed by a stop block at the side of the upper support plate 2 and the side surface of the spherical lining plate 4, and the restraint support can only slide in one direction.
(3) Rotation function
The spherical lining plate 4 and the spherical plate 9 form a spherical sliding pair to realize the rotation function of the support.
(II) earthquake working state
When the horizontal force of the earthquake reaches a certain degree, the shear pin 6 of the lower support plate 11 is sheared, the sliding pair formed by the plane sliding plate and the lower support plate 11 is opened, and meanwhile, the damping ring 7 starts to be continuously compressed, unfolded and deformed. The damping ring 7, once deformed, provides stiffness and damping to the lower mount in the 360 ° direction in the horizontal plane. The rigidity can prolong the structure period, avoid causing the structure resonance, the damping characteristic can consume the earthquake energy, all can reduce the destruction that the earthquake caused to the bridge by a wide margin.
The fixed connection, fixed mounting or fixed arrangement mode comprises the existing common technologies, such as bolt fixing, welding, riveting and the like, and all the technologies play a role in fixing without influencing the overall effect of the device.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure and claims of this application. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (5)
1. The utility model provides a damping spherical bearing, includes anchor sleeve (1) and anchor sleeve down, its characterized in that, goes up anchor sleeve (1) downside by last support plate (2), go up plane slide (3), sphere welt (4), anti-shear retaining ring (5), sphere slide (8), sphere board (9), lower plane slide (10) and undersetting board (11) respectively in proper order down, be provided with damping ring (7) between anti-shear retaining ring (5) and undersetting board (11), damping ring (7) cover is established in sphere board (9) outside all around and is formed the damping district with sphere board (9).
2. The damping spherical bearing according to claim 1, wherein the lower bearing plate (11) is provided with a shear groove, a shear pin (6) is arranged in the shear groove, and the shear baffle (5) is fixed by the shear pin (6).
3. The spherical damping mount according to claim 1, wherein the damping ring (7) is of a soft structure and made of a polymer material.
4. The damping spherical bearing according to claim 1, characterized in that the upper bearing plate (2), the lower bearing plate (11), the upper plane skateboard (3), the spherical plate (9), the lower plane skateboard (10) and the spherical skateboard (8) are made of steel.
5. The damping ball bearing according to claim 1, characterized in that the upper bearing plate (2) is connected with the beam body through an upper anchoring sleeve (1), and the lower bearing plate (11) is connected with the abutment through a lower anchoring sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020775604.4U CN212925747U (en) | 2020-05-12 | 2020-05-12 | Damping spherical bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020775604.4U CN212925747U (en) | 2020-05-12 | 2020-05-12 | Damping spherical bearing |
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| CN212925747U true CN212925747U (en) | 2021-04-09 |
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| CN202020775604.4U Active CN212925747U (en) | 2020-05-12 | 2020-05-12 | Damping spherical bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914206A (en) * | 2021-10-28 | 2022-01-11 | 中南大学 | Combined energy-consumption limiting support |
| CN114875781A (en) * | 2022-01-07 | 2022-08-09 | 长沙理工大学 | Function-controllable multi-state switching type friction swinging type seismic mitigation and isolation support |
-
2020
- 2020-05-12 CN CN202020775604.4U patent/CN212925747U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914206A (en) * | 2021-10-28 | 2022-01-11 | 中南大学 | Combined energy-consumption limiting support |
| CN114875781A (en) * | 2022-01-07 | 2022-08-09 | 长沙理工大学 | Function-controllable multi-state switching type friction swinging type seismic mitigation and isolation support |
| CN114875781B (en) * | 2022-01-07 | 2023-08-15 | 长沙理工大学 | Function controllable multi-state switching type friction pendulum type shock absorption and insulation support |
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