CN106638283B - The bionical bearing of diamond-film-like - Google Patents
The bionical bearing of diamond-film-like Download PDFInfo
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- CN106638283B CN106638283B CN201610992995.3A CN201610992995A CN106638283B CN 106638283 B CN106638283 B CN 106638283B CN 201610992995 A CN201610992995 A CN 201610992995A CN 106638283 B CN106638283 B CN 106638283B
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- groove
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
- E01D19/046—Spherical bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a kind of bionical bearing of diamond-film-like, configuring skateboard component includes：Rubber slab；Polyfluortetraethylene plate, the lower surface of the polyfluortetraethylene plate have plush copper raised and corresponding with the first round pool corresponding with the first groove, and bionic plate is formed so as to the lower surface of the polyfluortetraethylene plate and the upper surface contraposition cooperation of rubber slab；Slide plate, the lower surface of the slide plate and the upper surface of polyfluortetraethylene plate form the first friction structure, the upper surface then lower surface cooperation with upper bracket plate of the slide plate；The surface of the ball-and-socket is slidably matched formed with diamond-film-like for being formed with spherical crown liner plate.The coefficient of friction in primary friction face can be significantly reduced according to the present invention, and the service life of ball-type bridge pad can be effectively improved.
Description
Technical field
The present invention relates to a kind of bridge pad, is specifically related to a kind of ball-type bridge pad.
Background technology
Bridge pad has polytype, such as spherical bearing, laminated rubber bearing, pot rubber bearing etc., bridge pad
Effect mainly have at 2 points, one is by bridge load（Dynamic load and static load）Bridge pier is effectively passed to, second it is to overcome
Beam body because by brake force, environment temperature, concrete shrinkage or creep and load effect etc. caused by beam body caused by displacement it is inclined
Pressure.Such as it is horizontal in pontic, if because environment temperature changes, cause the beam body length of side, and the spacing between pier stud is constant, if
It is rigid connection between beam body and pier stud, then rigidly connected part is possible to be cut or beam body is produced to coupling part
Raw very big shearing force.Bridge pad then makes beam body malleation as far as possible on pier stud.
Wherein, spherical bearing is developed on the basis of pot rubber bearing, and China starts to develop ball in the seventies
Type bearing, experienced development for many years, and spherical bearing technology gradually tends to ripe.The design corner of spherical bearing can be much big
In the design corner of pot rubber bearing, frictional behaviour is also preferable, but inspecting from the bridge pad of Beijing-Fuzhou expressway in 2016
There is sphere polyfluortetraethylene plate problem of aging, have had a strong impact on the service life of bearing in middle discovery, portion of standoff.
Bridge pad needs to carry huge load, therefore it provides the mobile composition surface in the bridge pad of adaptive deformation
（Adapt to straight-line displacement or angular displacement）Whether extremely important in good working order, that is, the coefficient of friction for moving composition surface should
It is smaller.The aging of foregoing sphere polyfluortetraethylene plate, then make it that the andfrictional conditions of mating spherical surfaces part are extremely severe.
Because bridge pad is applied to heavily loaded occasion, suffer from this, bridge pad is generally matched somebody with somebody using the rubbing surface of face contact
Close, spherical bearing is no exception.In order to ensure that bridge pad realizes normal working condition, at present frequently with measure be ensure
The tetrafluoro plate surface of sliding bearing in the surface cleaning of rubbing surface, such as mobile model bearing and the stainless steel surfaces to rub therewith
Cleaning.And impose lubricant, such as 5201-2 silicone grease lubricating oil in friction engageable surface.However, nonetheless, friction engageable surface
Coefficient of friction is still very big, poor to the responding ability of deformation.
Typically, spherical bearing is turned as Chinese patent literature CN101476284B discloses one kind, the bearing provides
Three friction wearing plates, and a sphere rubbing surface formed by ball-type supporter and sphere cavity, all rubbing surfaces are provided
It is sliding friction, coefficient of friction is relatively large.
And Chinese patent literature CN105064205A discloses a kind of spherical bearing, the 48th section of its specification is pointed out, is passed through
Sliding seat is set to avoid bearing to realize that the function of the rotation of spherical bearing and slip separates between upper bracket and undersetting
Local function overlapping causes stuck stress concentration, and environment evil is slided when can to overcome friction environment to a certain extent be sliding friction
The problem of bad, but because the configuration of its friction structure is still the cooperation between conventional polyfluortetraethylene plate and ball-and-socket, to rubbing
The improvement result for wiping environment is limited.
The content of the invention
In view of this, it is an object of the invention to provide a kind of bionical bearing of diamond-film-like, master can significantly be reduced
The coefficient of friction of rubbing surface is wanted, and the service life of ball-type bridge pad can be effectively improved.
The present invention uses following technical scheme：
A kind of bionical bearing of diamond-film-like, including upper bracket plate and the lower support plate with ball-and-socket, and match somebody with somebody with ball-and-socket
The spherical crown liner plate of conjunction and the skateboard component between spherical crown liner plate and upper bracket plate, the skateboard component include：
Rubber slab, fixed plane is formed between the lower surface of the rubber slab and spherical crown liner plate and is coordinated, and upper surface then array
There are the first groove and the first round pool；
Polyfluortetraethylene plate, the lower surface of the polyfluortetraethylene plate have corresponding with the first groove raised and justified with first
Corresponding plush copper is cheated, bionic plate is formed so as to the lower surface of the polyfluortetraethylene plate and the upper surface contraposition cooperation of rubber slab；
The upper surface of slide plate, the lower surface of the slide plate and polyfluortetraethylene plate forms the first friction structure, the slide plate it is upper
Surface then coordinates with the lower surface of upper bracket plate；
The surface of the ball-and-socket is slidably matched formed with diamond-film-like for being formed with spherical crown liner plate.
The above-mentioned bionical bearing of diamond-film-like, alternatively, first groove is straight trough；
The trend of straight trough is a direction of the first groove array, and in this direction, the first groove sequentially connects adjacent
First round pool.
Alternatively, the trend of the first groove with along bridge to parallel.
Alternatively, the depth of first groove is the half of rubber plate thickness.
Alternatively, adjacent first round pool spacing is 35mm ~ 55mm.
Alternatively, the upper surface of the spherical crown liner plate is formed with pit so that rubber slab middle and lower part be embedded into pit and
Form the fixation in spherical crown liner plate.
Alternatively, between upper bracket plate lower surface and spherical crown liner plate upper surface, sealing ring is provided with around pit.
Alternatively, the ball-and-socket array has the second groove and the second round pool, wherein, on a selected array direction,
Second round pool is connected by the second groove.
Alternatively, it is provided with sealing ring in the periphery of the second groove and the second round pool array.
Alternatively, it is provided with dust-proof enclose around skateboard component and ball-and-socket and spherical crown liner plate between upper bracket plate and lower support plate
Plate.
According to the present invention, rubber slab substitutes existing face face to coordinate with polyfluortetraethylene plate, and both are in addition to cooperation, also
It is connected with plush copper with raised, the first round pool in the presence of the first groove, when polyfluortetraethylene plate and slide plate generation dynamic friction or quiet rubs
During wiping, deformation caused by above-mentioned connection can produce certain power consumption, so as to be effectively protected polyfluortetraethylene plate.And
For spherical crown liner plate, based on foregoing deformation and the diamond-film-like constructed under conditions of with compared with energy impact, from
The coefficient of friction of body frictional interface reduces, it is possible to increase the service life of spherical crown liner plate, and mitigate the burden of rubber slab.It is overall and
Speech, it is possible to increase the service life of whole bearing.
Brief description of the drawings
Fig. 1 is the main view half section structure diagram according to a kind of bionical bearing of diamond-film-like of the present invention.
Fig. 2 is bionic plate part-structure schematic diagram.
Fig. 3 is bionic plate overlooking the structure diagram.
A kind of lower support plate main view half section structure diagrams of Fig. 4.
Fig. 5 is a kind of lower support plate overlooking the structure diagram.
In figure：1. upper bracket plate, 2. bolts, 3. plane stainless steel plates, 4. polyfluortetraethylene plates, 5. rubber slabs, 6. sealings
Circle, 7. spherical crown liner plates, 8. sealing rings, 9. dust-proof coaming plates, 10. lower support plates, 11. diamond-film-likes, 12. bolts, 501. first
Groove, 502. first round pools, 101. second grooves, 102. second round pools.
Embodiment
On diamond-like carbon film-coating（DLC, Diamond-like carbon）, it is a kind of be made up of carbon, in nature
It is similar with diamond, while there is the material of graphite atom composition structure again.DLC film is a kind of noncrystalline membrane, due to
With high rigidity and high elastic modulus, low friction coefficient, wear-resistant and good vacuum tribological property, conduct is well suited for
Wear-resistant coating, so as to cause the attention of friction educational circles.
DLC film not only has excellent wearability, and has very low coefficient of friction, and generally below 0.2, it is a kind of excellent
Different surface abrasion Modified Membrane.DLC the friction coefficient preparation technology difference and film in composition change and change, it rubs
It is minimum up to 0.005 to wipe coefficient.Doped metallic elements may reduce its coefficient of friction, but addition H can improve lubrication, environment
Also coefficient of friction is had a certain impact.
Bridge pad shown in Fig. 1 is the further improvement to traditional spherical bearing, employs biomimetic features and anti-attrition
Structure, it is referred to collectively as the bionical bearing of diamond-film-like.
In Fig. 1, the bolt 2 set in upper bracket plate 1 is used to be connected with the beam body of such as bridge, for by caused by beam body
Vibration（Vibrations）, movement be delivered in upper bracket plate 1, carried in other words by upper bracket plate 1.
Lower support plate 10 is then arranged on for example on bridge pier column using the bolt 12 shown in Fig. 1, and finally load is married again
To for example on bridge pier column.
Bridge pad is not rigid switching it is necessary to have certain to sliding, rotating, the certain response of generation such as shaking
Ability, the responding ability come from the structure of bridge pad itself.
For spherical bearing, responding ability is the skateboard component portion on its ball-type construction part and ball-type construction part top
Point.
Specifically, for the bionical bearing of diamond-film-like under the conditions of concept of the present invention, its basic structure and traditional ball-type
Bearing is the same, the lower support plate 10 including upper bracket plate 1 and with ball-and-socket, and the spherical crown liner plate 7 coordinated with ball-and-socket and Jie
Skateboard component between spherical crown liner plate 7 and upper bracket plate, wherein the conventional structures such as position that open up on ball-and-socket are no longer gone to live in the household of one's in-laws on getting married herein
State, those skilled in the art should be clearly understood to this.
Relative to traditional spherical bearing, the structural modification of the bionical bearing of diamond-film-like based on the present invention relates generally to
Two places, a place be as shown in Figure 1 by be sequentially stacked from top to bottom plane stainless steel plate 3, polytetrafluoroethylene (PTFE)
The skateboard component that plate 4 and rubber slab 5 are formed, another place are then the fit structures of spherical crown liner plate 7 and ball-and-socket, two places
Change exist and influence each other, be one slip circle that to be spherical crown liner plate 7 coordinate with ball-and-socket for two sliding interfaces first
Face, another is sliding interface possessed by skateboard component, under conditions of the improvement of bionic plate partial properties, to sliding interface
Impact can be lowered, and the lifting of sliding capability, then the influence to bionical plate part weakens.
Below referring initially to first place, i.e., described skateboard component, it includes：
Rubber slab 5, fixed plane is formed between the lower surface of the rubber slab 5 and spherical crown liner plate 7 and is coordinated, i.e., rubber slab 5 with
It is fixedly connected between spherical crown liner plate 7, it is to be understood that, because rubber slab 5 has upper and lower pressure-bearing relation, in this direction
Constrained by self structure under bridge pad attribute conditions.And in the horizontal direction, then using straight between spherical crown liner plate 7
Connect in succession.
The structure of rubber slab 5 specifically may refer to Figure of description 2 and 3, it is seen that different from traditional upper surface of rubber slab 5
Planar structure, but then array has the first groove 501 and the first round pool 502 in the upper surface of rubber slab 5.
Traditional planar structure is mainly used in providing a friction structure, produces multiple friction structures according to this, whole to reduce
The coefficient of friction of body, so as to improve the responding ability to the bearing load of upper bracket plate 1, but as it was previously stated, this kind of structure although rubbing
It is more to wipe structure, but is easily damaged polyfluortetraethylene plate 4 or rubber slab 5（It is mainly used in subtracting shock insulation）Although pass through above-mentioned knot
Structure reduces a friction structure, but can be consumed energy by deforming, and when deforming excessive, the friction structure both deposited can act as
With energy dissipating portion, i.e. rubber slab 5 will not be damaged again.
On polyfluortetraethylene plate 4, its structure and rubber slab 5 are then aligning structures, so as under the polyfluortetraethylene plate 4
Surface have it is corresponding with the first groove 501 raised and with 502 corresponding plush copper of the first round pool so that the polyfluortetraethylene plate 4
The upper surface contraposition of lower surface and rubber slab 5 coordinate and form bionic plate as shown in Figure 2, this kind of structure is analogous to joggle,
But traditional connection is not used in, but for being deformed, so as to for buffering or producing power consumption.
Be analogous to tissue herein, by for example skin surface is impacted when, can be deformed, be described in change
Perhaps in the range of, skin will not be damaged, certainly, if producing sliding friction, it is likely that skin is frayed.Such as knee actuator current amplifier
Point, if knee joint, which is in, curls state, skin surface is tight, and it will decline in the cushioning effect of skin surface, and compare
Easily it is scratched.
Based on said structure, due to crushed element and the part that can be slid, both phase interworkings perpendicular to normal direction be present
Close, row buffering can be entered in the range of deformation is allowed, and outside the scope beyond buffering, buffering has consumed necessarily first
Energy, followed by slide, then further consumed energy, the on the whole damage to skateboard component are lowered for sliding.
The part of sliding, plane stainless steel plate 3 as shown in Figure 3, with polyfluortetraethylene plate 4 can referring to be produced
Coordinate and form Sliding Structures.
Specifically, plane stainless steel plate 3 forms slide plate, the lower surface of the slide plate and the upper surface shape of polyfluortetraethylene plate 4
Into the first friction structure, the upper surface then lower surface cooperation with upper bracket plate 1 of the slide plate, in the movement of caused horizontal direction
When smaller, first friction structure is in a kind of static friction state, and foregoing biomimetic features can be deformed, to consume energy
Amount.When the first friction structure produces dynamic friction state, under conditions of biomimetic features part then serves cushioning effect, experience certainly
To damage be also reduced by.
Another friction structure is then the slip that the surface of the ball-and-socket is formed with the spherical cap portion sphere of spherical crown liner plate 7
Friction structure, a friction structure is further provided for herein, the part-structure mainly produces the response of rotation, in some conditions
Under, micro mobile response can also be produced, its coefficient of friction is reduced and is also beneficial to protect rubber slab 5, specifically, in ball-and-socket
Surface is slidably matched for being formed with spherical crown liner plate 7 formed with diamond-film-like 11, improves the friction duty of spherical bearing.
The spherical crown liner plate 7 of spherical bearing and the improvement of ball-and-socket friction duty, it can further mitigate the burden of skateboard component,
The damage for being subject to rubber slab 5 reduces.
On the shape of the first groove 501, if only deformation is considered, its shape can be simple circular groove or side
Groove, and processing is also relatively easy, need to only consider the cooperation of polyfluortetraethylene plate 4.
In a preferred embodiment, first groove 501 is straight trough, and the deformation direction of straight trough is easier to control, and
In a particular direction, its deformability is higher than other directions, the characteristics of showing a kind of anisotropy in other words, so as to
Determine therefrom that the default direction for allowing maximum distortion for bridge pad installation when it needs to be determined that direction, such as along bridge to.
Further, the trend of straight trough is a direction of the array of the first groove 501, and in this direction, the first groove
501 sequentially connect adjacent first round pool 502, so as to as shown in figure 3, passing through the equivalent to the first round pool 502 formed in figure
The tandem of one groove 501 connection, multiple trends of the series connection with first order direction, i.e. straight trough, and for the vertical side of straight trough
Upwards, then it is another direction of array, this kind of array way can be clearly indicated out in Fig. 3.
In general, along bridge to being the easy direction for producing moderate finite deformation with direction across bridge, the trend of the first groove 501 with it is suitable
Bridge to parallel, for carry may maximum deformation.
In addition the groove profile that the cooperation of straight trough and round pool is formed, for example along bridge to can possess certain guidance capability,
Polyfluortetraethylene plate 4 along bridge in having predetermined activity space in groove profile, now, shape on groove profile and polyfluortetraethylene plate 4
Into protrusion structure not fully match, the width of straight trough is less than the diameter of the first round pool 502, is fitted to produce the structure slided
Width with straight trough, comparatively, lubricating oil or lubricating grease can be stored in the second round pool 502, the second circle being sequentially connected with
Hole 502 can store relatively large number of lubricating oil or lubricating grease.
Preferably, the depth of first groove 501 is the half of the thickness of rubber slab 5, is on the one hand reduced to rubber slab 5
Damage, meanwhile, deformation is can be at controllable maximum possible.
Further, consider to reduce under the damaging condition of rubber slab 5, obtain deformability as big as possible, adjacent the
The spacing of one round pool 502 is 35mm ~ 55mm.
The upper surface of the spherical crown liner plate 7 is formed with pit, so that the middle and lower part of rubber slab 5 is embedded into pit and formed
Fixation in spherical crown liner plate 7, fixed form is simple, and the constraint of the circumference based on pit formation, and rubber slab 5 is reliably limited
In spherical crown liner plate 7.
Preferably, between the lower surface of upper bracket plate 1 and the upper surface of spherical crown liner plate 7, sealing ring 6 is provided with around pit, is used for
Friction structure is protected, especially, pervasive environments are severe in the field that bridge pad is applied, to keep friction structure to be in good
Good state to it, it is necessary to carry out a certain degree of sealing.
In addition, in order to further improve the friction environment between spherical crown liner plate 7 and ball-and-socket, the ball-and-socket array has second recessed
The round pool 102 of groove 101 and second, wherein, on a selected array direction, the second round pool 102 is connected by the second groove 101
Logical, for this kind of structure although so that area of friction surface reduces, carrying environment becomes severe, but because groove and round pool can store profit
Consistent lubricant or lubricating oil, it can effectively improve friction condition.
In addition, for diamond-film-like 11, its thickness is unsuitable excessive, and otherwise cost of manufacture is too high, and its thickness control is existed
0.01mm is more suitable.
It is deep-controlled in 1mm or so for the second groove 101 or the thickness of the second round pool 102, it can specifically select
1mm。
Based on same consideration, sealing ring 8 is provided with the periphery of the second groove 101 and the array of the second round pool 102, with to rubbing
Structure is wiped to be protected.
On the whole, it is provided between upper bracket plate 1 and lower support plate 10 around skateboard component and ball-and-socket and spherical crown liner plate 7 dust-proof
Coaming plate 9.
Claims (10)
1. a kind of bionical bearing of diamond-film-like, including upper bracket plate（1）With the lower support plate with ball-and-socket（10）, and and ball
The spherical crown liner plate that nest coordinates（7）With between spherical crown liner plate（7）Skateboard component between upper bracket plate, it is characterised in that the cunning
Board component includes：
Rubber slab（5）, the rubber slab（5）Lower surface and spherical crown liner plate（7）Between form fixed plane and coordinate, and upper surface is then
Array has the first groove（501）With the first round pool（502）；
Polyfluortetraethylene plate（4）, the polyfluortetraethylene plate（4）Lower surface have and the first groove（501）It is corresponding raised and
With the first round pool（502）Corresponding plush copper, so as to the polyfluortetraethylene plate（4）Lower surface and rubber slab（5）Upper surface pair
Position coordinates and forms bionic plate；
Slide plate, the lower surface of the slide plate and polyfluortetraethylene plate（4）Upper surface formed the first friction structure, the upper table of the slide plate
Face then with upper bracket plate（1）Lower surface coordinate；
The surface of the ball-and-socket is formed with diamond-film-like（11）, it is used for and spherical crown liner plate（7）Formation is slidably matched.
2. the bionical bearing of diamond-film-like according to claim 1, it is characterised in that first groove（501）It is straight
Groove；
The trend of straight trough is the first groove（501）One direction of array, and in this direction, the first groove（501）Sequentially connect
Connect adjacent first round pool（502）.
3. the bionical bearing of diamond-film-like according to claim 2, it is characterised in that the trend of the first groove with along bridge to
It is parallel.
4. according to any described bionical bearings of diamond-film-like of claim 1-3, it is characterised in that first groove
（501）Depth be rubber slab（5）The half of thickness.
5. the bionical bearing of diamond-film-like according to claim 4, it is characterised in that adjacent first round pool（502）Spacing
For 35mm ~ 55mm.
6. according to any described bionical bearings of diamond-film-like of claim 1-3, it is characterised in that the spherical crown liner plate（7）
Upper surface formed with pit so that rubber slab（5）Middle and lower part is embedded into pit and formed in spherical crown liner plate（7）On consolidate
It is fixed.
7. the bionical bearing of diamond-film-like according to claim 6, it is characterised in that in upper bracket plate（1）Lower surface with
Spherical crown liner plate（7）Between upper surface, sealing ring is provided with around pit（6）.
8. according to any described bionical bearings of diamond-film-like of claim 1-3, it is characterised in that the ball-and-socket array has the
Two grooves（101）With the second round pool（102）, wherein, on a selected array direction, the second round pool（102）Pass through second
Groove（101）Connection.
9. the bionical bearing of diamond-film-like according to claim 8, it is characterised in that in the second groove（101）With second
Round pool（102）The periphery of array is provided with sealing ring（8）.
10. according to any described bionical bearings of diamond-film-like of claim 1-3, it is characterised in that upper bracket plate（1）With under
Support plate（10）Between surround skateboard component and ball-and-socket and spherical crown liner plate（7）Provided with dust-proof coaming plate（9）.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610992995.3A CN106638283B (en) | 2016-11-11 | 2016-11-11 | The bionical bearing of diamond-film-like |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610992995.3A CN106638283B (en) | 2016-11-11 | 2016-11-11 | The bionical bearing of diamond-film-like |
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| CN106638283B true CN106638283B (en) | 2018-02-09 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107090769B (en) * | 2017-06-07 | 2023-05-09 | 济南大学 | Bridge support |
| CN107354864B (en) * | 2017-08-31 | 2023-05-05 | 山东龙祥新材料科技有限公司 | Bridge support |
| CN107354865B (en) * | 2017-08-31 | 2023-05-05 | 济南大学 | Support for preventing bridge from overturning |
| CN114320804B (en) * | 2021-12-23 | 2022-11-18 | 燕山大学 | Seawater axial plunger pump flow distribution pair with bionic composite texture on surface |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476284B (en) * | 2009-01-31 | 2010-08-11 | 江苏万宝桥梁构件有限公司 | Turning spherical support |
| JP4766176B2 (en) * | 2010-02-15 | 2011-09-07 | 横浜ゴム株式会社 | Adhesive of carbon thin film coated article and rubber |
| CN103013090A (en) * | 2011-09-21 | 2013-04-03 | 重庆信合塑胶有限公司 | Polyaryletherketone composite material and application of the same in bridge bearing |
| US9284980B1 (en) * | 2012-11-06 | 2016-03-15 | Us Synthetic Corporation | Heavy load bearings and related methods |
| CN105064205B (en) * | 2015-08-25 | 2017-01-04 | 中铁大桥局武汉桥梁特种技术有限公司 | spherical bearing |
| CN206173792U (en) * | 2016-11-11 | 2017-05-17 | 济南大学 | Bionical support of diamond -like membrane |
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2016
- 2016-11-11 CN CN201610992995.3A patent/CN106638283B/en active Active
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