CN207672416U - A kind of weather-proof spherical bearing of anti-corrosion - Google Patents
A kind of weather-proof spherical bearing of anti-corrosion Download PDFInfo
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- CN207672416U CN207672416U CN201721292088.4U CN201721292088U CN207672416U CN 207672416 U CN207672416 U CN 207672416U CN 201721292088 U CN201721292088 U CN 201721292088U CN 207672416 U CN207672416 U CN 207672416U
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Abstract
The utility model provides a kind of weather-proof spherical bearing of anti-corrosion comprising upper bracket plate, with lower plane, and the lower plane is provided with limiting device；Lower support plate with upper concave spherical surface and is provided with lateral boss, which is located at the outer edge on lower support plate top, and it is in contact with limiting device；Spherical crown liner plate, it is arranged between upper bracket plate and lower support plate, the spherical crown liner plate has upper plane and lower convex spherical, is slidably matched by sliding friction auxiliary structure between lower plane and upper plane, is slidably matched by pivoting friction auxiliary structure between lower convex spherical and upper concave spherical surface；Upper bracket plate, lower support plate and spherical crown liner plate are made of low temperature resistant atmospheric corrosion resistance cast steel；The surface of the upper bracket plate, lower support plate and spherical crown liner plate is both provided with anticorrosive coating layer, which includes prime coat, intermediate primer layers and top coat layer；And the prime coat, intermediate primer layers are respectively the prime coat and intermediate primer layers formed by nano composite dope, finishing coat is fluorine carbon finishing paint.
Description
Technical field
The utility model is about a kind of spherical bearing, more particularly in the building fields such as a kind of bridge, high-speed railway
The weather-proof spherical bearing of anti-corrosion.
Background technology
In railroad bridge, high-speed railway and the design process of other building structure, it is often necessary to consider bearing used
The influence to building of structure and performance.
In addition, it is contemplated that the great number cost that the importance of spherical bearing function and repair are replaced, the master of high-speed railway bearing
Body component projected life presses to be considered with bridge equivalent life.But over time, some degradation phenomenas of bearing also go out
In the high ferro circuit for opening operation such as now Beijing-Shanghai, the steel part corrosion that wherein accounting is maximum, most common deterioration state is bearing,
Heavier B grades deterioration is had reached even in the worst case, by runing and activity duration and space are limited, how quickly and efficiently to be disposed bad
It is the problem for perplexing works department to change bearing；Meanwhile increasing with the propulsion of high ferro construction and international pro-ject, it is distributed in coastal
The railway engineering in area, extremely cold area and Wind-sandy Area proposes higher requirement to bridge pad, that is, what is enhanced is corrosion-resistant
Property, higher anti-severe cold ability and more durable sealing and exterior protection construction.The key to solve the above problems is to improve bridge
The anti-corrosion weatherability of beam support determines more applicable anticorrosive coating system and support body material, optimization branch by experimental study
The seal construction and protective device of seat deteriorate disease in conjunction with the bearing having found, propose practicable processing method.
Therefore, it is necessary to a kind of weather-proof spherical bearing of anti-corrosion be provided, to overcome drawbacks described above.
Utility model content
The purpose of this utility model is to provide a kind of weather-proof spherical bearings of anti-corrosion.
In order to achieve the above object, the utility model provides a kind of weather-proof spherical bearing of anti-corrosion, wherein the weather-proof ball of anti-corrosion
Type bearing includes：
Upper bracket plate, with lower plane, and the lower plane is provided with limiting device；
Lower support plate with upper concave spherical surface, and is provided with lateral boss, which is located at lower support plate top
Outer edge, and it is in contact with the limiting device；
Spherical crown liner plate is arranged between the upper bracket plate and the lower support plate, which has upper plane
With lower convex spherical, it is slidably matched by sliding friction auxiliary structure between the lower plane and the upper plane, the lower convex spherical
It is slidably matched by pivoting friction auxiliary structure between the upper concave spherical surface；
The upper bracket plate, lower support plate and spherical crown liner plate are the upper brackets made of low temperature resistant atmospheric corrosion resistance cast steel
Plate, lower support plate and spherical crown liner plate；
The surface of the upper bracket plate, lower support plate and spherical crown liner plate is both provided with anticorrosive coating layer, the anticorrosive coating layer
Including prime coat, intermediate primer layers and top coat layer；
And the prime coat, intermediate primer layers are respectively the prime coat and intermediate primer layers formed by nano composite dope, it is described
Finishing coat is fluorine carbon finishing paint.
The weather-proof spherical bearing of anti-corrosion as described above, wherein prepare used in upper bracket plate, lower support plate and spherical crown liner plate
Low temperature resistant atmospheric corrosion resistance cast steel (《Low temperature resistant atmospheric corrosion resistance steel-casting》, T/CFA02010120.01-2017) and it is this field
The conventional material used.
Currently, the ontology of the main bodys steel part such as upper bracket plate, spherical crown liner plate, lower support plate of this field routine spherical bearing
Material is all made of common cast steel ZG270-500 or structural steel Q345, these materials itself are anti-corrosion to rely primarily on painting compared with easy-to-rust
Dress system.But in coastal area, marine climate can reduce the barrier propterty of coating layer, shorten its work period, especially bearing
The mating surfaces such as internal liner plate do not do preservative treatment usually, but only understand accelerating corrosion by smearing the component that grease is protected,
The bearing capacity of influence bearing and sliding or rotating property when serious.The temperature applicable range of common bearing steel is usual simultaneously
It is -40 DEG C to 60 DEG C, -40 DEG C is less than for extreme temperature and longer area of holding time, lower temperature can influence material
Impact resistance and fatigue properties, increase the disease probability of happening of bearing, shorten the military service period of bearing.
And upper bracket plate, the sheet of lower support plate main body steel part of the weather-proof spherical bearing of anti-corrosion provided by the utility model
Body material uses low temperature resistant atmospheric corrosion resistance cast steel, and the operation principle of the low temperature resistant atmospheric corrosion resistance cast steel is：First, it is becoming rusty
Since steel surface trace element enrichment forms one layer of fine and close amorphous state rusty scale tissue after erosion a period of time, and combined with matrix
Very securely, this layer-stabilizing rusty scale can resist the intrusion of aqueous vapor and harmful ion in air to a certain extent, prevent base
Body metal further corrodes；Secondly, it can directly be exposed in air or simple application uses, generally after one or two year
Rusty scale gradually stablizes corrosion not developing deeply；It can take into account with good lower temperature resistance and impact resistance, and keep mechanical property
Not less than the common iron of ad eundem.
The weather-proof spherical bearing of anti-corrosion as described above, wherein the sliding friction auxiliary structure includes upper stainless steel plate peace
Face slide plate, the upper stainless steel plate are welded in the lower plane of the upper bracket plate；The plane slide plate is embedded in the ball
It is preced with the upper plane of liner plate.
The weather-proof spherical bearing of anti-corrosion as described above, wherein the pivoting friction auxiliary structure includes spherical slide plate and chromium plating
Layer or stainless steel plate, the spherical slide plate are embedded in the upper concave spherical surface of lower support plate, the chrome layer or stainless steel plate
It is set to the lower convex spherical of the spherical crown liner plate.The chrome layer or stainless steel plate can be closed according to method specified in GT/T17955
Reason is configured.
The weather-proof spherical bearing of anti-corrosion as described above, wherein the weather-proof spherical bearing of the anti-corrosion further includes upper sealing ring, described
Upper sealing ring is sleeved on the outside of the plane slide plate, and the bottom build-in of the upper sealing ring is in the upper flat of the spherical crown liner plate
Face, top are slightly above the upper surface of the plane slide plate.And those skilled in the art know how setting upper sealing ring so that
Its top is slightly above the upper surface of the plane slide plate, in specific embodiment of the present invention, the top of the upper sealing ring
Difference in height between the upper surface of plane slide plate is usually within 1mm.
The weather-proof spherical bearing of anti-corrosion as described above, wherein the weather-proof spherical bearing of the anti-corrosion further includes lower sealing ring, described
Lower sealing ring is sleeved on the outside of the spherical slide plate, and the bottom build-in of the lower sealing ring is in the fovea superior ball of the lower support plate
Face, top are slightly above the upper surface of the spherical slide plate.And those skilled in the art know how setting lower sealing ring so that
Its top is slightly above the upper surface of the spherical slide plate, in specific embodiment of the present invention, the top of the lower sealing ring
Difference in height between the upper surface of spherical slide plate is usually within 1mm.
Wherein, after the anti-corrosion weather-proof spherical bearing assembling, upper sealing ring can form sealing space with upper bracket plate, under
Sealing ring can be with the lower convex spherical of spherical crown liner plate at sealing space, the two sealing spaces can be respectively to plane slide plate and ball
Lubrication silicone grease on the slide plate of face plays the role of seal protection.
The weather-proof spherical bearing of anti-corrosion as described above, wherein the weather-proof spherical bearing of the anti-corrosion further includes dust-proof coaming plate, described
Dust-proof coaming plate is set to the surrounding of the spherical bearing lateral surface, and it passes through steel plate press strip and bolt and upper bracket plate lateral surface
Bolt hole is fixedly connected.
The weather-proof spherical bearing of anti-corrosion as described above, wherein the dust-proof coaming plate is the rubber strip with one fixed width.This
Field technology personnel can need to reasonably select the width of the rubber strip as dust-proof coaming plate according to field operation.
The weather-proof spherical bearing of anti-corrosion as described above, in specific embodiment of the present invention, the upper bracket plate is
Four ends angle of cuboid, the upper bracket plate is provided with anchor bolt (bolt, sleeve and screw rod)；The lower support plate is also rectangular
Four ends angle of the bodily form, the lower support plate is also equipped with anchor bolt.And those skilled in the art know how that the anchor is specifically arranged
All parts in bolt.
Spherical bearing plays a part of bearing load and transmits load, in addition to meeting self-bearing capacity, the utility model
The structure design of the bearing provided has also fully considered Path of Force Transfer, meets not only reliable but also succinct power transmission requirement.The anti-corrosion
The critical piece of weather-proof spherical bearing bears vertical load, and the transmission path of power is：Vertical load by beam body bottom surface → on
Support plate → flat frictional pair (sliding friction auxiliary structure) → spherical crown liner plate → spherical surface friction secondary (pivoting friction auxiliary structure) → under
Support plate → pier pinner → pier.In this process, each component is critical component, is both needed to be designed vertical load
Intensity inspection under effect is calculated, therefore vertical load size determines the planar dimension and structure height of each component, is the master of bearing
Load.
Fixed, one-way movable support in addition to vertical load also subject to transmit horizontal loading, the transmission path of power is：It is horizontal
Load is lateral by beam body bottom surface → upper bracket plate → upper bracket plate lateral limiting device (block or spacing ring) → lower support plate
Boss → lower support plate → pier pinner → pier.In this process, upper bracket plate lateral limiting device and bolt are power transmissions
Key position, block (or spacing ring) root are acted on by pulling force, shearing and moment of flexure, easily cause stress concentration, therefore, block or
Spacing ring is process with upper bracket plate using integral cast steel part or monoblock steel plate, and eliminate the tectonic sieving of stress concentration
(tectonic sieving of the elimination stress concentration is that this field conventional technical means is in specific embodiment of the present invention
Chamfered is carried out in component right angle).The lateral boss can add in the upper outer edges machine of lower support plate by drawing
Work is formed, and is an entirety with lower support plate, which forms contact surface with limiting device, can play transmission level
The effect of power and limit；Bolt then uses high strength steel 40Cr, and carries out modifier treatment (this field conventional technical means), and
Allowable shearing stress inspection is carried out to the diameter of bolt to calculate, and ensures that its is safe and reliable.
Wherein, it should be noted that：For one-way movable type bearing, the limiting device is block, and block is symmetrical cloth
It sets in the both sides of upper bracket plate lower plane, U slot structures is constituted together with the plane stainless steel plate of upper bracket plate；For fixed branch
Seat, is spacing ring；Spacing ring is 1, and peviform structure is constituted together with the plane stainless steel plate of upper bracket plate.
The weather-proof spherical bearing of anti-corrosion as described above, wherein the thickness of the prime coat is 40-80 μm, intermediate primer layers
Thickness is 40-60 μm, and the thickness of finishing coat is 40-80 μm.
The weather-proof spherical bearing of anti-corrosion as described above, wherein the nano composite dope and fluorine carbon finishing paint are this field
The conventional substances used, any commercially available nano composite dope and fluorine carbon finishing paint may be incorporated for the utility model.The nanometer
Composite coating refers to increasing size in organic coating in the component of 1-100nm, can effectively promote the corrosion-resistant of coating
Property and adhesive force.The operation principle of nano composite dope is to promote coating compactness, effectively extraneous " corrosion factor " is prevented to penetrate into
Caused base material corrosion；Nanometer component takes electronic action by force with powerful simultaneously, and can seize the electronics of base material iron makes iron become
To stablize iron ion at high price, forms one layer of fine and close iron ion film and play antisepsis；Electronic action is led due to nano material,
When coating damage, broken edges, which can form electronics transfer effect, makes corrosion be effectively controlled and cannot stretch.
The anticorrosive coating layer of common bridge pad steel part is essential protection together like the skin of the mankind
Barrier, it protects bearing steel part ontology from the destruction of harmful components in air, to extending the time of disease generation, slowing down disease
Development speed play conclusive effect.If this road barrier occur it is damaged, steel part will corrosion, peeling or even failure,
Therefore, in order to ensure the overall performance of bridge pad, the period of being on active service for improving product, reduce daily maintenance cost, drop
The caused calamity source of low bearing failure, the protective capacities of enhancing anticorrosive coating layer is the homework that must be done.Existing
In technological document and product design specifications, without the Special coating technology requirement for bridge pad, conventional ball type bearing steel part
Anticorrosive coating use for reference use《Railway steel bridge protects application and coating supply of material technical conditions》(TB/T1527-2011) in standard
It suitable for the 6th set of painting design in the more serious area of corrosive environment, is shown in Table 4, the system is by priming paint, middle paint, finishing coat group
At priming paint is combined with surface treated base's steel part, the main adhesive force and corrosion proof function for providing coating, the layer thickness
It is not more thicker better, generally roads 1-2；Intermediate coat is mainly used for increasing the thickness of paint film, because seeming the paint film of densification not
It is the structure of sealing, there are many aperture, only guaranteed certain thickness could prevent the intrusion of erosion, slow down the hair of corrosion
It is raw；The smoother exquisiteness of finishing coat is beautiful, and the more fillers of base-material are few, good film-forming property, the main effect for playing decoration, protecting.6th set
The priming paint of painting design uses special epoxy zinc-rich anti-corrosive primer or aqueous inorganic zinc-rich anti-corrosive primer, thickness of dry film to be not less than 80
μm, the thickness of dry film of cloud iron hoop oxygen intermediate coat is not less than 40 μm, and the thickness of dry film of acrylated aliphatic urethane finishing coat is not less than
80 μm, i.e. paint film overall thickness is not less than 200 μm.The standard requires to be shown in Table 5 to the technology of the said goods, wherein coating
Bending property, impact resistance, adhesive force, hardness of paint film, salt fog resistance, elongation at break, alkali resistance, acid resistance, resistance to artificial
Accelerated ageing is the key element for influencing corrosion-inhibiting coating overall performance, wherein salt fog resistance is the indispensable supply of material item of priming paint
Part, and prevent the crucial Con trolling index of matrix steel corrosion.It is generally believed that salt spray resistance is equal to natural environment 1 in 100 hours
Year, in technical indicator the test requirements document of 1000h be equivalent to 10 years service phases of bearing, i.e. 10 after the completion of application year inner coating
Serious corrosion should not occur, and this is relative to the design in 100 years of high-speed railway bridge agent structure and support body steel part
Service life is much to can not meet requirement, and at least 5 times paintings will be carried out in entire design life by being equivalent to
Layer upkeep operation, the bridge pad quantity hundreds thousand of in face of tens thousand of kilometers of bridge mileages, this will be an arduousness to being difficult to
At task.
The 6th set of painting design of 4 TB/T1527-2011 of table
The 6th set of painting design of table 5 is required with coating technology
The weather-proof spherical bearing power transmission of anti-corrosion provided by the utility model is clear, constructs compact, component uniform force, whole
Property is good, can meet the requirement of the buildings such as bridge, high-speed railway；In addition, the main body steel part of the weather-proof spherical bearing of the anti-corrosion
Bulk material be made of low temperature resistant atmospheric corrosion resistance cast steel, therefore the weather-proof ball-type branch of the anti-corrosion provided by the utility model
Seat such as is adapted to the requirement of extremely cold area and can cope with rural area, city, industrial atmosphere, ocean at all kinds of atmospheric environments；
Meanwhile using special anticorrosive coating layer, (prime coat, intermediate primer layers are respectively by nano combined painting to the weather-proof spherical bearing of the anti-corrosion
Expect the prime coat and intermediate primer layers that are formed, finishing coat is fluorine carbon finishing paint) so that it has more excellent anti-corrosion weatherability.
Description of the drawings
Fig. 1-Fig. 2 is the structural schematic diagram for the weather-proof spherical bearing of anti-corrosion that the utility model embodiment 1 provides；
Fig. 3 is the friction auxiliary structure schematic diagram for the weather-proof spherical bearing of anti-corrosion that the utility model embodiment 1 provides.
Main Reference label declaration：
1, upper bracket plate；
2, spherical crown liner plate；
3, lower support plate；
4, upper stainless steel plate；
5, plane slide plate；
6, chrome layer or stainless steel plate；
7, spherical slide plate；
8, upper sealing ring and lower sealing ring；
9, anchor bolt (bolt, sleeve and screw rod)；
10, dust-proof coaming plate.
Specific implementation mode
The implementation process of the utility model and having for generation is described in detail below by way of specific embodiment and Figure of description
Beneficial effect, it is intended to help reader to more fully understand the essence and feature of the utility model, not as can practical range to this case
Restriction.
Embodiment 1
A kind of weather-proof spherical bearing of anti-corrosion is present embodiments provided, the structural schematic diagram of the weather-proof spherical bearing of anti-corrosion is such as
Shown in Fig. 1-Fig. 2, as can be seen from the figure include：
Upper bracket plate 1, with lower plane, and the lower plane is provided with lateral block (it is one whole with upper bracket plate
Body)；
Lower support plate 3 with upper concave spherical surface, and is provided with lateral boss (it is an entirety with lower support plate)；Institute
The outer edge that lateral boss is located at lower support plate top is stated, and it is in contact with the lateral block；
Spherical crown liner plate 2 is arranged between the upper bracket plate 1 and the lower support plate 3, which has upper
Plane and lower convex spherical, are slidably matched between the lower plane and the upper plane by sliding friction auxiliary structure, convex under described
It is slidably matched by pivoting friction auxiliary structure between spherical surface and the upper concave spherical surface；The friction pair knot of the weather-proof spherical bearing of the anti-corrosion
Structure schematic diagram is as shown in Figure 3；
The upper bracket plate 1, lower support plate 3 and spherical crown liner plate 2 are the upper branch made of low temperature resistant atmospheric corrosion resistance cast steel
Seat board, lower support plate and spherical crown liner plate；
The surface of the upper bracket plate 1, lower support plate 3 and spherical crown liner plate 2 is both provided with anticorrosive coating layer, the anticorrosive coating
Layer includes prime coat, intermediate primer layers and top coat layer；
The prime coat, intermediate primer layers are respectively the prime coat and intermediate primer layers formed by nano composite dope, the face
Paint is fluorine carbon finishing paint；And the thickness of the prime coat is 40-80 μm, the thickness of intermediate primer layers is 40-60 μm, and the thickness of finishing coat is
40-80μm；
The sliding friction auxiliary structure includes upper stainless steel plate 4 and plane slide plate 5, and the upper stainless steel plate 4 is welded in institute
State the lower plane of upper bracket plate 1；The plane slide plate 5 is embedded in the upper plane of the spherical crown liner plate 2；
The pivoting friction auxiliary structure includes spherical slide plate 7 and chrome layer or stainless steel plate 6, and the spherical slide plate 7 is inlayed
In in the upper concave spherical surface of lower support plate 3, the chrome layer or stainless steel plate 6 are set to convex ball under the spherical crown liner plate 2
Face；
The weather-proof spherical bearing of anti-corrosion further includes upper sealing ring 8, and the upper sealing ring 8 is sleeved on the plane slide plate 5
Outside, and the bottom build-in of the upper sealing ring 8, in the upper plane of the spherical crown liner plate 2, top is slightly above the plane slide plate 5
Upper surface；
The weather-proof spherical bearing of anti-corrosion further includes lower sealing ring 8, and the lower sealing ring 8 is sleeved on the spherical slide plate 7
Outside, and the bottom build-in of the lower sealing ring 8 is in the upper concave spherical surface of the lower support plate 3, and top is slightly above the spherical surface and slides
The upper surface of plate 7；
The weather-proof spherical bearing of anti-corrosion further includes dust-proof coaming plate 10, and the dust-proof coaming plate 10 is set to outside the spherical bearing
The surrounding of side, and it is fixedly connected by steel plate press strip and bolt with the bolt hole of 1 lateral surface of upper bracket plate；
The dust-proof coaming plate 10 is the rubber strip with one fixed width；
The upper bracket plate 1 is cuboid, and four ends angle of the upper bracket plate 1 is provided with anchor bolt (bolt, sleeve and spiral shell
Bar) 9；The lower support plate 3 is also cuboid, and four ends angle of the lower support plate 3 is again provided with anchor bolt 9.
As the following table 1 give the utility model used in normal steel casting used in low temperature resistant atmospheric corrosion resistance cast steel and this field
Mechanical property comparative situation, table 2 give the corrosion resistance of the low temperature resistant atmospheric corrosion resistance cast steel, and it is resistance to low that table 3 gives this
The use environment of warm atmospheric corrosion resistance cast steel and with the requirement of the fit applications of anticorrosive coating layer.
The mechanical property contrast table of table 1 low temperature resistant atmospheric corrosion resistance cast steel and normal steel casting
The corrosion resistance of 2 low temperature resistant atmospheric corrosion resistance cast steel of table
The application model of 3 low temperature resistant atmospheric corrosion resistance cast steel of table
Wherein, described ZGS10CrNiCu, ZGS10Cr3NiCu and ZGS10Cr5NiCu are the commercially available conventional material in this field
Material.
By table 1 as it can be seen that low temperature resistant atmospheric corrosion resistance cast steel is while keeping intensity to be not less than ZG270-500, low temperature
Impact characteristics have obtained great promotion, adapt to the requirement of extremely cold area；Data in table 2 and table 3 are also shown, resistance to low
The rate of corrosion of warm atmospheric corrosion resistance cast steel is gradually reduced with being incremented by for nickel content, when using ZGS10Cr5NiCu, completely
The protection of anticorrosive coating system is not needed, you can all kinds of atmospheric environments such as reply rural area, city, industrial atmosphere, marine atmosphere.
Table 6 is the performance of nano composite dope and the 6th set of painting design priming paint of this field routine used in the utility model
Measured value contrast table.
The measured performance contrast table of 6 nano combined primary coat of table and the 6th set of painting design primary coat of TB/T 1527
| Project | Unit | Nano combined primary coat | TB/T 1527-2011 system priming paint |
| Bending property | mm | ≤2 | ≤2 |
| Impact resistance | cm | ≥50 | ≥50 |
| Adhesive force (pulls open method) | MPa | ≥25 | ≥5 |
| Salt fog resistance | h | ≥7000 | ≥1000 |
| Resistance to 10% sulfuric acid | d | ≥200 | No technology requirement |
| Resistance to 10% hydrochloric acid | d | ≥200 | No technology requirement |
| Resistance to 10% caustic soda | d | ≥200 | No technology requirement |
| Wearability (knockout method) | L/um | 3.14 | No technology requirement |
| Wearability (emery wheel method) | g | 0.021 | No technology requirement |
| Resistance to artificial accelerated aging | h | ≥2000 | No technology requirement |
As can be seen from Table 6, by being promoted obviously with the now cated visible properties that compare.Wherein, adhesive force index
It is the key parameter for weighing priming paint and bearing substrate steel material binding ability, the index is bigger, then the combination of priming paint and substrate steel material
Closer, coating is less susceptible to be fallen off by the influence of extraneous factor, on the contrary, can then be easier to occur coating foaming, cracking and
Obscission.Salt fog resistance, acid and alkali-resistance, alkali resistance, resistance to artificial accelerated aging are the adaptations for weighing coating to complicated climatic environment
And protective capacities, the higher environment for showing that coating is suitable for of These parameters is more severe, the regional extent of application is more extensive, to China
The coverage rate of railroad bridge engineering is higher, and practical application effect is better.Wearability has then reacted adaptation of the coating to wind sand environment
Ability, the lower explanation of the index falls off fewer in Wind-sandy Area using floating coat abrasion, and the guard time of coating is longer, to wind resistance
Husky ability is stronger.
Compared with the acrylated aliphatic urethane finishing coat of this field routine, fluorine carbon finishing paint used in the utility model is being broken
Elongation, resistance to artificial accelerated aging etc. have larger advantage than acrylated aliphatic urethane finishing coat；Fluorine carbon finishing paint
It compares and shows with the index of acrylated aliphatic urethane finishing coat, acrylated aliphatic urethane finishing coat is to elongation at break without skill
Art requirement, and the elongation at break of fluorine carbon finishing paint can reach 50% or more.Elongation at break has reacted finishing coat to the temperature difference significantly
The adaptive capacity to environment in area, such as in northwest China area, the morning and evening temperature difference can reach 30 DEG C, if the acrylate that selection is common
Fat race polyurethane finish, since finishing coat and the linear expansion coefficient of bearing substrate steel material are inconsistent, base material can occur bright in one day
Aobvious phenomenon of expanding with heat and contract with cold will be detached from when finishing coat can not adapt to the variation with bearing substrate steel material, generate depainting phenomenon, together
Sample, for resistance to artificial accelerated aging, the technical indicator of acrylated aliphatic urethane finishing coat is only 1000h, and fluorine carbon finishing paint
Index request be 3000h.Resistance to artificial accelerated aging has reacted adaptability of the finishing coat to complex environment, such as seriously polluted
Urban environment and industrial sublimity, the strong altitude environment of the marine environment and ultraviolet light of seriously corroded, thus with the 6th set
Painting design is compared, and has superior anti-corrosion weathering characteristics using the bridge pad after fluorine carbon finishing paint.
Claims (8)
1. a kind of weather-proof spherical bearing of anti-corrosion, which is characterized in that the weather-proof spherical bearing of anti-corrosion includes：
Upper bracket plate, with lower plane, and the lower plane is provided with limiting device；
Lower support plate with upper concave spherical surface and is provided with lateral boss, which is located at the outside on lower support plate top
Edge, and it is in contact with the limiting device；
Spherical crown liner plate is arranged between the upper bracket plate and the lower support plate, which has upper plane under
Convex spherical is slidably matched between the lower plane and the upper plane by sliding friction auxiliary structure, the lower convex spherical and institute
It states and is slidably matched by pivoting friction auxiliary structure between concave spherical surface；
The upper bracket plate, lower support plate and spherical crown liner plate be the upper bracket plate made of low temperature resistant atmospheric corrosion resistance cast steel, under
Support plate and spherical crown liner plate；
The low temperature resistant atmospheric corrosion resistance cast steel is ZGS10CrNiCu, ZGS10Cr3NiCu or ZGS10Cr5NiCu；
The surface of the upper bracket plate, lower support plate and spherical crown liner plate is both provided with anticorrosive coating layer, which includes
Prime coat, intermediate primer layers and top coat layer；
And the prime coat, intermediate primer layers are respectively the prime coat and intermediate primer layers formed by nano composite dope, the finishing coat
For fluorine carbon finishing paint.
2. the weather-proof spherical bearing of anti-corrosion according to claim 1, which is characterized in that the sliding friction auxiliary structure includes upper
Stainless steel plate and plane slide plate, the upper stainless steel plate are welded in the lower plane of the upper bracket plate；The plane slide plate
It is embedded in the upper plane of the spherical crown liner plate.
3. the weather-proof spherical bearing of anti-corrosion according to claim 1, which is characterized in that the pivoting friction auxiliary structure includes ball
Face slide plate and chrome layer or stainless steel plate, the spherical slide plate are embedded in the upper concave spherical surface of lower support plate, the chromium plating
Layer or stainless steel plate are set to the lower convex spherical of the spherical crown liner plate.
4. the weather-proof spherical bearing of anti-corrosion according to claim 2, which is characterized in that the weather-proof spherical bearing of the anti-corrosion further includes
Upper sealing ring, the upper sealing ring is sleeved on the outside of the plane slide plate, and the bottom build-in of the upper sealing ring is in the ball
It is preced with the upper plane of liner plate, top is slightly above the upper surface of the plane slide plate.
5. the weather-proof spherical bearing of anti-corrosion according to claim 3, which is characterized in that the weather-proof spherical bearing of the anti-corrosion further includes
Lower sealing ring, the lower sealing ring is sleeved on the outside of the spherical slide plate, and the bottom build-in of the lower sealing ring is under described
The upper concave spherical surface of support plate, top are slightly above the upper surface of the spherical slide plate.
6. the weather-proof spherical bearing of anti-corrosion according to claim 1, which is characterized in that the weather-proof spherical bearing of the anti-corrosion further includes
Dust-proof coaming plate, the dust-proof coaming plate are set to the surrounding of the spherical bearing lateral surface, and its by steel plate press strip and bolt with it is upper
The bolt hole of support plate lateral surface is fixedly connected.
7. the weather-proof spherical bearing of anti-corrosion according to claim 6, which is characterized in that the dust-proof coaming plate is with a fixed width
The rubber strip of degree.
8. the weather-proof spherical bearing of anti-corrosion according to claim 1, which is characterized in that the thickness of the prime coat is 40-80 μ
The thickness of m, intermediate primer layers are 40-60 μm, and the thickness of finishing coat is 40-80 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721292088.4U CN207672416U (en) | 2017-09-30 | 2017-09-30 | A kind of weather-proof spherical bearing of anti-corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721292088.4U CN207672416U (en) | 2017-09-30 | 2017-09-30 | A kind of weather-proof spherical bearing of anti-corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207672416U true CN207672416U (en) | 2018-07-31 |
Family
ID=62953243
Family Applications (1)
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| CN201721292088.4U Active CN207672416U (en) | 2017-09-30 | 2017-09-30 | A kind of weather-proof spherical bearing of anti-corrosion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108951876A (en) * | 2018-08-24 | 2018-12-07 | 张惠奇 | A kind of corrosion resisting alloy spherical bearing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951876A (en) * | 2018-08-24 | 2018-12-07 | 张惠奇 | A kind of corrosion resisting alloy spherical bearing |
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