CN206173792U - Bionical support of diamond -like membrane - Google Patents

Abstract

The utility model discloses a bionical support of diamond -like membrane, the slide plate assembly that disposes includes: the rubber slab, polyfluortetraethylene plate, this polyfluortetraethylene plate's lower surface has the protruding and plush copper corresponding with first round pool of answering with first groove phase to this polyfluortetraethylene plate's lower surface is counterpointed the cooperation and is formed bionical board with the upper surface of rubber slab, slide, the lower surface of this slide and polyfluortetraethylene plate's upper surface form first friction structure, the upper surface of this slide then with the lower surfaces to mate of upper bracket board, the surface of ball socket is formed with the diamond -like membrane for form sliding fit with spherical crown lining board. The foundation the utility model discloses the coefficient of friction of the main friction surface of reduction that can be by a wide margin, and can effectively improve ball -type bridge beam supports's life.

Description

The bionical bearing of diamond-film-like

Technical field

This utility model is related 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, the first is by bridge load（Dynamic load and static load）Bridge pier is effectively passed to, second which be to overcome Beam body is because by brake force, ambient temperature, concrete shrinkage or creeping and beam body that the displacement that causes such as load effect is produced is inclined Pressure.For example in pontic laterally, if because ambient temperature changes, causing the beam body length of side, and the spacing between pier stud being constant, if It is rigid connection between beam body and pier stud, then rigidly connected part is possible to be cut off or beam body is produced to coupling part The very big shearing force of life.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 started 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 also preferably, but inspecting from the bridge pad of Beijing-Fuzhou expressway in 2016 There is sphere polyfluortetraethylene plate problem of aging in middle discovery, portion of standoff, have had a strong impact on the service life of bearing.

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.Aforesaid sphere polyfluortetraethylene plate it is aging, then so that the andfrictional conditions of mating spherical surfaces part are extremely severe.

As 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 and the stainless steel surfaces for rubbing therewith of the sliding bearing in the surface cleaning of rubbing surface, such as mobile model bearing Cleaning.And lubricant, such as 5201-2 silicone grease lubricating oil are imposed in friction engageable surface.However, nonetheless, friction engageable surface Coefficient of friction is still very big, and the responding ability to deforming is poor.

Typically, as Chinese patent literature CN101476284B discloses a kind of swivel spherical bearing, the bearing is provided Three friction wearing plates, and a sphere rubbing surface formed by ball-type supporter and sphere cavity, all of rubbing surface 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 description is pointed out, is passed through Sliding seat is arranged between upper bracket and undersetting to separate with the function of realizing the rotation and slip of spherical bearing, bearing can be avoided Local function overlapping causes stuck stress concentration, and when friction environment can be overcome to a certain extent to be sliding friction, slip environment is disliked Bad problem, but as the configuration of its friction structure remains the cooperation between conventional polyfluortetraethylene plate and ball-and-socket, to rubbing The improvement result for wiping environment is limited.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of diamond-film-like bionical bearing, significantly can be dropped The coefficient of friction in low primary friction face, and the service life of ball-type bridge pad can be effectively improved.

This utility model is employed the following technical solutions：

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, forms fixed plane and coordinates between the lower surface and spherical crown liner plate of the rubber slab, and upper surface then array There are the first groove and the first round pool；

Polyfluortetraethylene plate, the lower surface of the polyfluortetraethylene plate with it is corresponding with the first groove raised and with the first circle Corresponding plush copper is cheated, and bionic plate is formed so as to the lower surface of the polyfluortetraethylene plate is coordinated with the upper surface para-position of rubber slab；

Slide plate, the upper surface of the lower surface of the slide plate and polyfluortetraethylene plate form the first friction structure, the slide plate it is upper Surface is then coordinated with the lower surface of upper bracket plate；

The surface of the ball-and-socket is formed with diamond-film-like, is slidably matched for being formed with spherical crown liner plate.

The bionical bearing of above-mentioned 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, half of the depth of first groove for 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 during rubber slab middle and lower part is embedded into pit The fixation being formed 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 the array direction selected, Second round pool is connected by the second groove.

Alternatively, sealing ring is provided with the periphery of the second groove and the second round pool array.

Alternatively, skateboard component and ball-and-socket are surrounded between upper bracket plate and lower support plate and spherical crown liner plate is provided with dust-proof enclosing Plate.

According to this utility model, rubber slab replaces existing face face to coordinate with polyfluortetraethylene plate, and both are except coordinating it Outward, also there is the first groove be connected with plush copper with raised, the first round pool, when polyfluortetraethylene plate and slide plate generation dynamic friction or During static friction, the deformation produced by above-mentioned connection can produce certain power consumption such that it is able to be effectively protected politef Plate.And for spherical crown liner plate, based on aforesaid deformation and the diamond-film-like for being constructed with the condition compared with energy impact Under, the coefficient of friction at self friction interface is reduced, it is possible to increase the service life of spherical crown liner plate, and mitigates the burden of rubber slab. Generally speaking, it is possible to increase the service life of whole bearing.

Description of the drawings

Fig. 1 is the half-sectional structural representation of main view according to a kind of bionical bearing of diamond-film-like of the present utility model.

Fig. 2 is bionic plate part-structure schematic diagram.

Fig. 3 is bionic plate overlooking the structure diagram.

A kind of half-sectional structural representation of lower support plate main views of Fig. 4.

Fig. 5 is a kind of lower support plate overlooking the structure diagram.

In figure：1. upper bracket plate, 2. bolt, 3. plane stainless steel plate, 4. polyfluortetraethylene plate, 5. rubber slab, 6. seals Enclose, 7. spherical crown liner plate, 8. sealing ring, 9. dust-proof coaming plate, 10. lower support plate, 11. diamond-film-likes, 12. bolts, 501. first Groove, 502. first round pools, 101. second grooves, 102. second round pools.

Specific embodiment

With regard to diamond-like carbon film-coating（DLC, Diamond-like carbon）, it is that one kind is made up of carbon, in nature It is similar with diamond, while and the material of structure is constituted with graphite atom.Diamond like carbon 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 with very low coefficient of friction, generally below 0.2, is a kind of excellent Different surface abrasion Modified Membrane.The change of composition in the difference and film of the friction coefficient preparation technology of DLC and change, which rubs Wipe coefficient minimum up to 0.005.Doped metallic elements may reduce its coefficient of friction, but add H 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, is referred to collectively as the bionical bearing of diamond-film-like.

In Fig. 1, the bolt 2 arranged in upper bracket plate 1 for being connected with the beam body of such as bridge, for what beam body was produced Vibration（Vibrations）, movement be delivered in upper bracket plate 1, carried by upper bracket plate 1 in other words.

Lower support plate 10 is then arranged on such as bridge pier column using the bolt 12 shown in Fig. 1, and finally load is married again To on such as bridge pier column.

Bridge pad is not rigid switching, needs to produce certain response to sliding, rotation, vibrations etc. with certain Ability, the responding ability come from the structure of bridge pad itself.

For spherical bearing, responding ability is the skateboard component portion that its ball-type construction part and ball-type construct part top Point.

Specifically, for the bionical bearing of diamond-film-like under the conditions of this utility model concept, its basic structure with tradition Spherical bearing is the same, including upper bracket plate 1 and the lower support plate with ball-and-socket 10, and the spherical crown liner plate 7 coordinated with ball-and-socket And the skateboard component between spherical crown liner plate 7 and upper bracket plate, wherein opening up the conventional structure such as position here not with regard to ball-and-socket Repeat again, those skilled in the art should be clearly understood to this.

Relative to traditional spherical bearing, the structural modification based on the bionical bearing of diamond-film-like of the present utility model is main Be related to two it is local, place is as shown in Figure 1 by the plane stainless steel plate 3, polytetrafluoro being sequentially stacked from top to bottom The skateboard component formed by vinyl plate 4 and rubber slab 5, another place is then the fit structure of spherical crown liner plate 7 and ball-and-socket, two The change in place exists and influences each other, and is that, for two sliding interfaces, one is slip that spherical crown liner plate 7 is coordinated with ball-and-socket first Interface, another is the sliding interface that skateboard component has, under conditions of bionic plate partial properties improve, to sliding interface Impact can be lowered, and the lifting of sliding capability, the then impact to bionical plate part weaken.

It is local referring initially to first below, i.e., described skateboard component, which includes：

Rubber slab 5, forms fixed plane and coordinates between the lower surface and spherical crown liner plate 7 of the rubber slab 5, i.e., rubber slab 5 with It is fixedly connected between spherical crown liner plate 7, it is to be understood that, as 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 5 upper surface of rubber slab 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 1 bearing load of upper bracket plate, but as it was previously stated, this kind of structure is although rub Wipe structure many, but be easily damaged polyfluortetraethylene plate 4 or rubber slab 5（It is mainly used in subtracting shock insulation）Although passing 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 be acted as With will not damage energy dissipating portion, i.e. rubber slab 5 again.

With regard to polyfluortetraethylene plate 4, its structure and rubber slab 5 are then aligning structures, so as under the polyfluortetraethylene plate 4 Surface with it is corresponding with the first groove 501 raised and with 502 corresponding plush copper of the first round pool, so as to the polyfluortetraethylene plate 4 The upper surface para-position 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 being used to buffer or producing power consumption.

Be analogous to tissue herein, by for example skin surface is impacted when, can be deformed, describe in change Perhaps in the range of, will not injured skin, certainly, if produce sliding friction, it is likely that skin is frayed.Such as knee actuator current amplifier Point, if knee joint is in state is curled, skin surface is tight, and which will decline in the cushioning effect of skin surface, and compare Easily it is scratched.

Based on said structure, due to exist perpendicular to normal direction crushed element and can be with the part of sliding, both phase interworkings Close, row buffering can be entered in the range of deformation is allowed, and outside the scope beyond buffering, buffering has consumed certain first Energy, followed by sliding, sliding then further consumed energy, the on the whole damage to skateboard component are lowered.

The part of sliding, plane stainless steel plate as shown in Figure 33, with polyfluortetraethylene plate 4 can referring to be produced Coordinate and constitute Sliding Structures.

Specifically, plane stainless steel plate 3 constitutes 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 of the slide plate is then coordinated with the lower surface of upper bracket plate 1, in the movement of the horizontal direction for producing When less, first friction structure is in a kind of static friction state, and aforesaid 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 formed with the spherical cap portion sphere of spherical crown liner plate 7 by the surface of the ball-and-socket Friction structure, further provides for a friction structure herein, and the part-structure mainly produces the response of rotation, in some conditions Under, it is also possible to micro mobile response is produced, its coefficient of friction is reduced and is also beneficial to protect rubber slab 5, specifically, in ball-and-socket Surface is formed with diamond-film-like 11, is slidably matched for being formed with spherical crown liner plate 7, 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, can further mitigate the burden of skateboard component, Reduce the damage that rubber slab 5 is subject to.

With regard to the shape of the first groove 501, iff deformation is considered, its shape can be simple circular groove or side Groove, and process 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 easily controlled, and In a particular direction, its deformability is higher than other directions, the characteristics of present a kind of anisotropy in other words, such that it is able to Determine therefrom that the default direction for allowing maximum distortion for bridge pad install when it needs to be determined that direction, for example along bridge to.

Further, the trend of straight trough is a direction of 501 array of the first groove, and in this direction, the first groove 501 sequentially connect adjacent first round pool 502, so as to as shown in figure 3, formed in figure equivalent to the first round pool 502 by the The tandem of the connection of one groove 501, multiple series connection have a trend of first order direction, i.e. straight trough, and the side vertical for straight trough Upwards, then be array another direction, this kind of array way can be clearly indicated out in Fig. 3.

In general, along bridge to direction across bridge be easily produce moderate finite deformation direction, the trend of the first groove 501 with it is suitable Bridge is to parallel, maximum for carrying possibility deformation.

In addition the grooved formed by the cooperation of straight trough and round pool, for example along bridge to can possess certain guidance capability, Polyfluortetraethylene plate 4 is having predetermined activity space in grooved along bridge, now, shape on grooved and polyfluortetraethylene plate 4 Into prominent structure not fully match, the diameter of the width of straight trough less than the first round pool 502 is fitted to produce the structure for sliding Width with straight trough, comparatively, can store lubricating oil or grease in the second round pool 502, the second circle being sequentially connected with Hole 502 can store relatively large number of lubricating oil or grease.

Preferably, half of the depth of first groove 501 for 5 thickness of rubber slab, is on the one hand reduced to rubber slab 5 Damage, meanwhile, make deformation can be at controllable maximum possible.

Further, it is considered to reduce under damaging condition to rubber slab 5, obtain deformability as big as possible, adjacent the One round pool, 502 spacing is 35mm ~ 55mm.

The upper surface of the spherical crown liner plate 7 is formed with pit, so as to be formed in during 5 middle and lower part of rubber slab is embedded into pit Fixation in spherical crown liner plate 7, fixed form are simple, and the circumference based on pit formation is constrained, and rubber slab 5 is reliably limited In spherical crown liner plate 7.

Preferably, between 7 upper surface of 1 lower surface of upper bracket plate and spherical crown liner plate, sealing ring 6 is provided with around pit, is used for Protection friction structure, especially, in the field applied by bridge pad, pervasive environments are severe, are to keep friction structure in good Good state, needs to carry out a certain degree of sealing to which.

Additionally, 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 Groove 101 and the second round pool 102, wherein, on the array direction selected, the second round pool 102 is connected by the second groove 101 Logical, although so that area of friction surface reduces, carry environment becomes severe to this kind of structure, but as groove and round pool can store profit Consistent lubricant or lubricating oil, can effectively improve friction condition.

Additionally, 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.

For the second groove 101 or the thickness of the second round pool 102, severity control can be specifically selected in 1mm or so 1mm。

Based on same consideration, sealing ring 8 is provided with the periphery of 102 array of the second groove 101 and the second round pool, with to rubbing Wipe structure to be protected.

On the whole, skateboard component and ball-and-socket are surrounded between upper bracket plate 1 and lower support plate 10 and spherical crown liner plate 7 is provided with 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 with 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 and polyfluortetraethylene plate of the slide 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）, for 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 the arbitrary described bionical bearing 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 the arbitrary described bionical bearing of diamond-film-like of claim 1-3, it is characterised in that the spherical crown liner plate（7） Upper surface be formed with pit so that rubber slab（5）Spherical crown liner plate is formed in during middle and lower part is embedded into pit（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 the arbitrary described bionical bearing 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 the array direction selected, the second round pool（102）By 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 the arbitrary described bionical bearing 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）It is provided with dust-proof coaming plate（9）.