CN106835965A - Bimetallic spherical crown liner plate and preparation method thereof, spherical steel support - Google Patents
Bimetallic spherical crown liner plate and preparation method thereof, spherical steel support Download PDFInfo
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- CN106835965A CN106835965A CN201710233940.9A CN201710233940A CN106835965A CN 106835965 A CN106835965 A CN 106835965A CN 201710233940 A CN201710233940 A CN 201710233940A CN 106835965 A CN106835965 A CN 106835965A
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- spherical crown
- spherical
- plate
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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
- E01D19/042—Mechanical bearings
- E01D19/046—Spherical bearings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/36—Bearings or like supports allowing movement
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a kind of bimetallic spherical crown liner plate and preparation method thereof and the spherical steel support of the bimetallic spherical crown liner plate is used, be related to bridge, technical field of buildings.The preparation method is comprised the following steps：Spherical crown substrate is prepared, spherical crown substrate is made of carbon steel or cast iron.Formation alloy spherical crown, the composite casting alloy spherical crown on the surface of spherical crown substrate, a side surface of alloy spherical crown is convex spherical.The bimetallic spherical crown liner plate that the preparation method is formed has good anti-wear performance, antiseptic property and less coefficient of friction, and is tightly combined between Rotating fields, in the absence of the problem that inside is come to nothing.
Description
Technical field
The present invention relates to bridge, technical field of buildings, in particular to a kind of bimetallic spherical crown liner plate and its preparation side
Method, spherical steel support.
Background technology
At present, on the one hand ball shaped steel bearing plays support superstructure load as bridge, the important component of building field
Effect, on the other hand by the load of superstructure and deformation delicately pass to substructure.Ball shaped steel bearing is generally included
The lower support plate that the upper bracket plate being connected with superstructure is connected with substructure, and the ball between upper lower support plate
Hat.Spherical crown is used as transmission superstructure, the main member of substructure load and deformation, it is desirable to have anti-wear performance higher, compared with
Small roughness and coefficient of friction.
In order that spherical crown sphere can delicately transmit load and the deformation of superstructure, at the same with upper bracket plate bottom surface
There is preferable anti-wear performance during rubs mutually, domestic relevant railway, road criterion are proposed can only be using cladding sphere not
Rust steel plate or sphere chromium plating two ways.
In practical operation, spherical crown cladding stainless steel materials need by spherical frock be pressed into it is corresponding spherical
, then be positioned over the spherical stainless steel plate on spherical crown by (frock size is slightly smaller than spherical crown sphere size), by what is pressurizeed, weld
Mode combines both.The technical process is repeatedly pressurizeed to stainless steel materials, greatly reduces the wearability of stainless steel plate
Energy and surface smoothness, meanwhile, stainless steel plate there is also during being combined with spherical crown cannot be brought into close contact, inside is come to nothing
Position, can also reduce the anti-wear performance of spherical crown.The mode of spherical crown chrome-faced can increase the anti-wear performance of spherical crown, after polishing
Less coefficient of friction is ensure that, but the technique process-cycle is more long, and uneven coating is even, easy to fall off, big for environment pollution.
Therefore, design that a kind of anti-wear performance is good, coefficient of friction is small, the close spherical crown of high in machining efficiency and Coating combination and
Its preparation method is technical problem urgently to be resolved hurrily at present.
The content of the invention
It is an object of the invention to provide a kind of bimetallic spherical crown liner plate and preparation method thereof, it aims to solve the problem that existing ball
Hat preparation method processing efficiency is low, and spherical crown anti-wear performance is poor, coefficient of friction is big and the untight technical problem of Coating combination.
It is an object of the invention to provide a kind of spherical steel support, it aims to solve the problem that the spherical crown in existing frictional bearing
Anti-wear performance is poor, coefficient of friction is big and the untight technical problem of Coating combination.
The first technical scheme that the present invention is provided：A kind of preparation method of bimetallic spherical crown liner plate is comprised the following steps：
Spherical crown substrate is prepared, the spherical crown substrate is made of carbon steel or cast iron；
Form alloy spherical crown, the alloy spherical crown described in composite casting on the surface of the spherical crown substrate, the alloy spherical crown
A side surface be convex spherical.
Further, the alloy spherical crown using in 1Cr3,2Cr13,3Cr3, Cr17 any one be made.
Second technical scheme that the present invention is provided：A kind of bimetallic spherical crown liner plate includes spherical crown substrate and alloy spherical crown；
The spherical crown substrate is made of carbon steel or cast iron；
The spherical crown substrate is combined with the alloy spherical crown by composite casting；The surface of the alloying pellet side is convex
Sphere.
Further, the surface that the spherical crown substrate is used to connect the alloy spherical crown is convex spherical, the alloy spherical crown
Surface for connecting the spherical crown substrate is concave spherical surface.
Further, the surface that the spherical crown substrate is used to connect the alloy spherical crown is serrated-surface, the alloy
The surface that spherical crown is used to connect the spherical crown substrate is serrated-surface.
Further, the surface that the spherical crown substrate is used to connect the alloy spherical crown is stepped surface, the alloy
The surface that spherical crown is used to connect the spherical crown substrate is stepped surface.
The third technical scheme that the present invention is provided：A kind of spherical steel support includes upper anchorage rod iron, upper bracket plate, upper resistance to
Nog plate, lower support plate, lower wearing plate, lower anchorage rod iron and above-mentioned bimetallic spherical crown liner plate；
The upper anchorage rod iron is fixedly mounted on the top of the upper bracket plate, for connecting bridge span structure；It is described to cast anchor
Heavy stone used as an anchor rod iron is fixedly mounted on the bottom of the lower support plate, for connecting bridge pier；
The upper bracket plate, the upper wearing plate, the bimetallic spherical crown liner plate, the lower wearing plate, the undersetting
Plate is cascading from top to bottom；The upper surface of the lower support plate include concave spherical surface, the lower surface of the lower wearing plate with
The concave spherical surface of the lower support plate matches, the convex spherical phase of the upper surface of the lower wearing plate and the bimetallic spherical crown liner plate
Matching.
Further, the upper surface of the bimetallic spherical crown liner plate opens up fluted, and the upper wearing plate is arranged on described
In groove.
Further, described spherical steel support also includes upper anchorage bolt and lower anchorage bolt；The upper anchorage bolt
For the upper anchorage rod iron to be connected into the upper bracket plate；The lower anchorage bolt is used to connect the lower anchorage rod iron
It is connected in the lower support plate.
Compared to existing spherical crown and preparation method thereof, bimetallic spherical crown liner plate that the present invention is provided and preparation method thereof has
Beneficial effect is：
First, alloy spherical crown is combined with spherical crown substrate by composite casting, and alloy spherical crown is firmly wrapped in spherical crown
On matrix, alloy spherical crown is tightly combined with spherical crown matrix, and the convex spherical of bimetallic spherical crown liner plate is had well
Anti-wear performance, antiseptic property and less coefficient of friction.Secondly, spherical crown substrate is made of carbon steel or cast iron, materials side
Just, cost is relatively low.Finally, bimetallic spherical crown liner plate simple structure, it is convenient to prepare, and the process-cycle is short, and processing cost is low.
Compared to existing frictional bearing, the beneficial effect of the spherical steel support of present invention offer is：Employ above-mentioned double
Metal spherical crown liner plate, fits with good anti-wear performance, antiseptic property and less coefficient of friction, and between Rotating fields
Closely, make that spherical steel support performance is better, service life is longer, and the process-cycle is shorter.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be attached to what is used needed for embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, thus be not construed as it is right
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
The half-sectional structural representation of the spherical steel support that Fig. 1 is provided for first embodiment of the invention.
Another structural representation at the visual angle of the spherical steel support that Fig. 2 is provided for first embodiment of the invention.
Fig. 3 is the first structural representation of bimetallic spherical crown liner plate in Fig. 1.
Fig. 4 is second structural representation of bimetallic spherical crown liner plate in Fig. 1.
The half-sectional structural representation of the spherical steel support that Fig. 5 is provided for second embodiment of the invention.
The schematic flow sheet of the preparation method of the bimetallic spherical crown liner plate that Fig. 6 is provided for second embodiment of the invention.
Icon：100- spherical steel supports；The upper anchorage rod irons of 110-；The upper anchorage bolts of 120-；130- upper bracket plates；On 140-
Wearing plate；Wearing plate under 150-；160- lower support plates；Anchorage rod iron under 170-；Anchorage bolt under 180-；200- bimetallic spherical crowns
Liner plate；210- spherical crown substrates；211- grooves；220- alloy spherical crowns.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Present invention implementation generally described and illustrated in accompanying drawing herein
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.
In the description of the invention, it is to be understood that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, or should
Orientation or position relationship that invention product is usually put when using, or the orientation or position that those skilled in the art usually understand
Relation is put, the description present invention is for only for ease of and is simplified description, it is necessary rather than the equipment or element for indicating or imply meaning
With specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
Additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that indicating or implying
Relative importance.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or one
The connection of body ground；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to indirect by intermediary
It is connected, can is two connections of element internal.For the ordinary skill in the art, can be with concrete condition understanding
State term concrete meaning in the present invention.
First embodiment
The half-sectional structural representation of the spherical steel support 100 that Fig. 1 is provided for first embodiment of the invention, Fig. 2 is the present invention
The structural representation at another visual angle of the spherical steel support 100 that first embodiment is provided, refers to Fig. 1 and Fig. 2.Need explanation
, the reference with arrow refers to empty body structure, such as hole, groove, chamber etc. in all accompanying drawings, without the accompanying drawing mark of arrow
Note refers to entity structure.
Present embodiments provide a kind of spherical steel support 100.Spherical steel support 100 includes upper anchorage rod iron 110, upper anchorage
Bolt 120, upper bracket plate 130, upper wearing plate 140, lower wearing plate 150, lower support plate 160, lower anchorage rod iron 170, lower anchorage
Bolt 180 and bimetallic spherical crown liner plate 200.
Upper anchorage rod iron 110 is fixedly mounted on the top of upper bracket plate 130, for connecting bridge span structure.Lower anchorage rod iron
170 bottoms for being fixedly mounted on lower support plate 160, for connecting bridge pier.
Upper bracket plate 130, upper wearing plate 140, bimetallic spherical crown liner plate 200, lower wearing plate 150, lower support plate 160 are from upper
It is cascading under.The upper surface of lower support plate 160 includes concave spherical surface, the lower surface and lower support plate of lower wearing plate 150
160 concave spherical surface matches, and upper surface and the convex spherical of bimetallic spherical crown liner plate 200 of lower wearing plate 150 match.
Upper anchorage bolt 120 is used to for upper anchorage rod iron 110 to be connected to upper bracket plate 130.Lower anchorage bolt 180 is used for
Lower anchorage rod iron 170 is connected in lower support plate 160.
Fig. 3 is the first structural representation of bimetallic spherical crown liner plate 200 in Fig. 1, refers to Fig. 3, bimetallic spherical crown lining
Plate 200 includes spherical crown substrate 210 and alloy spherical crown 220.
Spherical crown substrate 210 is made of carbon steel or cast iron.Alloy spherical crown 220 is appointed using in 1Cr3,2Cr13,3Cr3, Cr17
Meaning one kind is made, or is varied from the renewal of the stainless steel steel trade mark, or using the excellent conjunction of other wear-resisting, antiseptic properties
Golden material.
The surface that spherical crown substrate 210 is used to connect alloy spherical crown 220 is convex spherical, and alloy spherical crown 220 is used to connect spherical crown
The surface of substrate 210 is concave spherical surface.It is convex spherical that alloy spherical crown 220 is used to support the surface of lower support plate 160.Bimetallic spherical crown
The upper surface of liner plate 200 opens up fluted 211, and upper wearing plate 140 is arranged in groove 211.Spherical crown substrate 210 and alloy spherical crown
220 are combined by composite casting.
Here composite casting refers to：Alloy spherical crown 220 is combined with spherical crown substrate 210 using casting.Specifically,
The raw material of the alloy spherical crown 220 of the surface upper molten condition of spherical crown substrate 210, solidifies by liquid phase on compound interface, consolidates
Mutually the Rotating fields of plastic deformation generation alloy spherical crown 220, aggravate atoms permeating, so as to strengthen while being combined constituent element close contact
The fastness at the Rotating fields coated ball crown base bottom 210 of alloy spherical crown 220.
It is easily understood that spherical crown substrate 210 can also have other types of attachment with the compound interface of alloy spherical crown 220,
For example, using the complex form of stepped surface, as shown in figure 4, spherical crown substrate 210 is used to connect the surface of alloy spherical crown 220
It is stepped surface, the surface that spherical crown substrate 210 is used to connect alloy spherical crown 220 is stepped surface, both stairstepping tables
Face cooperates, and makes to be tightly combined between spherical crown substrate 210 and alloy spherical crown 220, will not find dislocation or play phenomenon.
Additionally, spherical crown substrate 210 can also be using the complex of serrated-surface with the compound interface of alloy spherical crown 220
Formula.That is, the surface that spherical crown substrate 210 is used to connect alloy spherical crown 220 is serrated-surface, alloy spherical crown 220 is used for
The surface at connected ball crown base bottom 210 is serrated-surface.
The spherical steel support 100 that the present embodiment is provided, first, using composite casting on the surface of spherical crown substrate 210
Mode forms alloy spherical crown 220, is not only simple in structure, and makes to be tightly combined between spherical crown substrate 210 and alloy spherical crown 220,
Will not find that dislocation or play phenomenon and inside are come to nothing phenomenon.Secondly, alloy spherical crown 220 has bimetallic spherical crown liner plate 200
There are good anti-wear performance, antiseptic property and less coefficient of friction.
Additionally, the present embodiment provide spherical steel support 100 can not only be used in bridge construction, may be also used in compared with
In big building construction, play a part of to improve shock resistance.
Second embodiment
The half-sectional structural representation of the spherical steel support that Fig. 5 is provided for second embodiment of the invention, refers to Fig. 5.This reality
Example is applied there is provided a kind of spherical steel support 100, its structure is close with the structure in first embodiment, and difference is：This reality
The spherical steel support 100 for applying example uses bi-curved spherical crown liner plate 200, and the ball of single-curved surface is used in first embodiment
Hat liner plate 200.
Accordingly, in the spherical steel support 100 of the present embodiment, the lower surface of upper bracket plate 130 includes concave curved surface, undersetting
The upper surface of plate 160 includes concave curved surface, and concave curved surface here is concave spherical surface.The upper and lower surface of spherical crown liner plate 200 is equal
It is convex spherical.Groove 211, upper wearing plate 140 and lower wearing plate are provided with the upper and lower surface of spherical crown liner plate 200
150 are arranged in corresponding groove 211.
The spherical steel support 100 of the present embodiment employs bi-curved spherical crown liner plate 200, with good anti-wear performance,
Fitted between antiseptic property and less coefficient of friction, and alloy spherical crown 220 and spherical crown substrate 210 closely, in the absence of interior
The problem that portion comes to nothing.
3rd embodiment
The present embodiment provides a kind of preparation method of bimetallic spherical crown liner plate, as shown in fig. 6, the system of bimetallic spherical crown liner plate
Preparation Method is comprised the following steps：
S1：Prepare spherical crown substrate.
Spherical crown substrate is made of carbon steel or cast iron, specifically, No. 45 steel or magnesium iron can be used.The blank of spherical crown substrate can
To be cast member, forge piece or select section bar, the blank of spherical crown substrate is set to form multiple surfaces by machining.So, no
Only convenient material drawing, and the cost of material is low.
The structure type of spherical crown substrate is not limited to above-mentioned form, can be according to the ball needed for bimetallic spherical crown liner plate during processing
Radius surface and high flexible are designed.
S2：Form alloy spherical crown.
The composite casting alloy spherical crown on the surface of spherical crown substrate, a side surface of alloy spherical crown is convex spherical.
The surface that spherical crown substrate is combined with alloy spherical crown, shape is mutually matched, for example, spherical crown substrate is used to connect alloy
The surface of spherical crown is convex spherical, and the surface that alloy spherical crown is used for connected ball crown base bottom is concave spherical surface；Or use stepped surface
Complex form, or using serrated-surface complex form.So, make to be combined tightly between spherical crown substrate and alloy spherical crown
It is close, dislocation or play phenomenon will not be found.
Alloy spherical crown using in 1Cr3,2Cr13,3Cr3, Cr17 any one be made, or with the stainless steel steel trade mark more
Newly it is varied from, or using the excellent alloy material of other wear-resisting, antiseptic properties.Alloy spherical crown can significantly improve bimetallic
The wear-resisting of spherical crown liner plate, antifriction performance and antiseptic property.
Using composite casting technology, in the raw material of the alloy spherical crown of the surface upper molten condition of spherical crown substrate, multiple
Close by liquid phase solidification, the Rotating fields of solid phase plastic deformation generation alloy spherical crown on interface, while compound constituent element is in close contact and makes original
Son diffusion aggravation, so as to strengthen the fastness at the Rotating fields coated ball crown base bottom of alloy spherical crown.
The beneficial effect of the preparation method of the bimetallic spherical crown liner plate that the present embodiment is provided：First, the sphere of spherical crown liner plate
With good wear-resisting, antifriction, antiseptic property.Secondly, spherical crown substrate is made mutually to be tied with alloy spherical crown by the way of composite casting
Close, alloy spherical crown can be made to be coated on spherical crown substrate securely, be not in the problem that middle part is come to nothing, and, improve double gold
Belong to the pressure-resistant performance of spherical crown liner plate.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of preparation method of bimetallic spherical crown liner plate, it is characterised in that the preparation method bag of the bimetallic spherical crown liner plate
Include following steps：
Spherical crown substrate is prepared, the spherical crown substrate is made of carbon steel or cast iron；
Form alloy spherical crown, the alloy spherical crown described in composite casting on the surface of the spherical crown substrate, the one of the alloy spherical crown
Side surface is convex spherical.
2. the preparation method of bimetallic spherical crown liner plate according to claim 1, it is characterised in that the alloy spherical crown is used
Any one is made in 1Cr3,2Cr13,3Cr3, Cr17.
3. a kind of bimetallic spherical crown liner plate, it is characterised in that the bimetallic spherical crown liner plate includes spherical crown substrate and alloy spherical crown；
The spherical crown substrate is made of carbon steel or cast iron；
The spherical crown substrate is combined with the alloy spherical crown by composite casting；One side surface of the not alloying pellet hat is convex
Sphere.
4. bimetallic spherical crown liner plate according to claim 3, it is characterised in that the alloy spherical crown using 1Cr3,
Any one is made in 2Cr13,3Cr3, Cr17.
5. bimetallic spherical crown liner plate according to claim 3, it is characterised in that the spherical crown substrate is used to connect the conjunction
The surface of gold goal hat is convex spherical, and the surface that the alloy spherical crown is used to connect the spherical crown substrate is concave spherical surface.
6. bimetallic spherical crown liner plate according to claim 3, it is characterised in that the spherical crown substrate is used to connect the conjunction
The surface of gold goal hat is serrated-surface, and the surface that the alloy spherical crown is used to connect the spherical crown substrate is serrated-surface.
7. bimetallic spherical crown liner plate according to claim 3, it is characterised in that the spherical crown substrate is used to connect the conjunction
The surface of gold goal hat is stepped surface, and the surface that the alloy spherical crown is used to connect the spherical crown substrate is stepped surface.
8. a kind of spherical steel support, it is characterised in that the spherical steel support includes upper anchorage rod iron, upper bracket plate, upper wear-resisting
Bimetallic spherical crown liner plate described in plate, lower support plate, lower wearing plate, lower anchorage rod iron and claim 3；
The upper anchorage rod iron is fixedly mounted on the top of the upper bracket plate, for connecting bridge span structure；The lower anchorage steel
Rod is fixedly mounted on the bottom of the lower support plate, for connecting bridge pier；
The upper bracket plate, the upper wearing plate, the bimetallic spherical crown liner plate, the lower wearing plate, the lower support plate from
Up to it is cascading down；The upper surface of the lower support plate include concave spherical surface, the lower surface of the lower wearing plate with it is described
The concave spherical surface of lower support plate matches, the convex spherical phase of the upper surface of the lower wearing plate and the bimetallic spherical crown liner plate
Match somebody with somebody.
9. spherical steel support according to claim 8, it is characterised in that the upper surface of the bimetallic spherical crown liner plate opens up
Fluted, the upper wearing plate is arranged in the groove.
10. spherical steel support according to claim 8, it is characterised in that described spherical steel support also includes upper anchorage
Bolt and lower anchorage bolt；The upper anchorage bolt is used to for the upper anchorage rod iron to be connected to the upper bracket plate；It is described
Lower anchorage bolt is used to for the lower anchorage rod iron to be connected to the lower support plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710233940.9A CN106835965A (en) | 2017-04-11 | 2017-04-11 | Bimetallic spherical crown liner plate and preparation method thereof, spherical steel support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710233940.9A CN106835965A (en) | 2017-04-11 | 2017-04-11 | Bimetallic spherical crown liner plate and preparation method thereof, spherical steel support |
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| Publication Number | Publication Date |
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| CN106835965A true CN106835965A (en) | 2017-06-13 |
Family
ID=59146666
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| CN201710233940.9A Pending CN106835965A (en) | 2017-04-11 | 2017-04-11 | Bimetallic spherical crown liner plate and preparation method thereof, spherical steel support |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988898A (en) * | 2017-10-13 | 2018-05-04 | 武汉海润工程设备有限公司 | A kind of spheroidal graphite cast-iron bridge pad |
| CN108330819A (en) * | 2018-03-09 | 2018-07-27 | 安徽尚德科技有限公司 | A kind of combined type spherical crown and its manufacturing process |
| CN113279327A (en) * | 2021-06-05 | 2021-08-20 | 衡水中交信德工程橡塑有限公司 | Bridge or house building support friction part convenient for realizing rotation or sliding and preparation method thereof |
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| US20140026498A1 (en) * | 2011-02-21 | 2014-01-30 | Politecnico Di Milano | Antiseismic support |
| CN201962598U (en) * | 2011-02-23 | 2011-09-07 | 衡水宝力工程橡胶有限公司 | Composite cast steel ball-shaped support |
| CN205637209U (en) * | 2016-03-14 | 2016-10-12 | 武汉鑫拓力工程技术有限公司 | Novel building shock insulation support |
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| CN107988898A (en) * | 2017-10-13 | 2018-05-04 | 武汉海润工程设备有限公司 | A kind of spheroidal graphite cast-iron bridge pad |
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| CN113279327A (en) * | 2021-06-05 | 2021-08-20 | 衡水中交信德工程橡塑有限公司 | Bridge or house building support friction part convenient for realizing rotation or sliding and preparation method thereof |
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Application publication date: 20170613 |