CN112813802B - Ultra-high-strength concrete prefabricated swivel spherical hinge, prefabricated mould and preparation method thereof - Google Patents
Ultra-high-strength concrete prefabricated swivel spherical hinge, prefabricated mould and preparation method thereof Download PDFInfo
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- CN112813802B CN112813802B CN202110275768.XA CN202110275768A CN112813802B CN 112813802 B CN112813802 B CN 112813802B CN 202110275768 A CN202110275768 A CN 202110275768A CN 112813802 B CN112813802 B CN 112813802B
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- 239000011372 high-strength concrete Substances 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 46
- 239000010959 steel Substances 0.000 claims description 46
- 229910001220 stainless steel Inorganic materials 0.000 claims description 31
- 239000010935 stainless steel Substances 0.000 claims description 31
- 238000009417 prefabrication Methods 0.000 claims description 30
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 29
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 29
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 9
- 238000004080 punching Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 239000004574 high-performance concrete Substances 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 abstract description 7
- 238000003754 machining Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 7
- 239000004567 concrete Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/022—Means for inserting reinforcing members into the mould or for supporting them in the mould
- B28B23/024—Supporting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
- B28B7/0055—Mould pallets; Mould panels
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The invention discloses an ultra-high strength concrete prefabricated swivel spherical hinge, a prefabricated die and a preparation method thereof, wherein the ultra-high strength concrete prefabricated swivel spherical hinge comprises an upper spherical hinge, a lower spherical hinge and a rotating shaft, the lower end surface of the upper spherical hinge is provided with a convex spherical surface, the upper end surface of the lower spherical hinge is provided with a concave spherical surface, the convex spherical surface at the lower side of the upper spherical hinge is adapted to the concave spherical surface at the upper side of the lower spherical hinge, the axle centers of the upper spherical hinge and the lower spherical hinge are reserved with axle holes, the two ends of the rotating shaft are respectively and rotatably fit in shaft holes on the upper spherical hinge and the lower spherical hinge, the upper spherical hinge and the lower spherical hinge are reinforced concrete prefabricated components, a first protection plate is arranged outside a convex spherical surface on the lower side of the upper spherical hinge, a second protection plate is arranged outside a concave spherical surface on the upper side of the lower spherical hinge, and the outer surface of the first protection plate is matched with the outer surface of the second protection plate to form a spherical hinge rotating friction pair. The invention reduces the processing difficulty and the manufacturing cost of the swivel spherical hinge and shortens the production period.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to an ultra-high-strength concrete prefabricated swivel spherical hinge, a prefabricated die and a preparation method thereof.
Background
In recent years, along with the increasing maturity of bridge technology in China, the development of high-speed railway bridges in China is rapid, and along with the high-speed development of bridges, the cross construction of bridges and existing railways and highways is more and more, and in recent years, railway departments require that swivel construction methods must be adopted across the existing railways and highways, so the demand for swivel spherical hinges is increasing.
At present, most of rotating spherical hinges manufactured in domestic production are steel spherical hinges, the steel spherical hinges are made of all steel materials, the steel consumption is large, the processing and welding deformation is difficult to control, the diameter size of the spherical hinges is large, the transportation difficulty is large, and finally, spherical surfaces are required to be processed through large-scale machining equipment, so that the processing difficulty is large, the period is long, the transportation cost is high, and the spherical surfaces are ultra-wide objects in general; in addition, the rotating spherical hinge is an RPC-steel combined spherical hinge (refer to Chinese patent CN105088966A specifically), the processing name of the RPC-steel combined spherical hinge is the mixed use of steel and RPC, firstly, the steel is pressed, secondly, concrete is poured into a steel shell, and then, after the concrete is cured to reach the design strength, the spherical surface finish machining is carried out, and although the volume ratio of the spherical surface finish machining is smaller than that of the steel ball hinge, the problems of ensuring the construction period and the processing difficulty are not solved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an ultra-high strength concrete prefabricated swivel spherical hinge, a prefabricated die and a preparation method thereof, so as to solve the problems of high processing difficulty, high manufacturing cost and long production period of the existing swivel spherical hinge.
In one aspect, the invention provides an ultra-high strength concrete prefabricated swivel spherical hinge, which comprises an upper spherical hinge, a lower spherical hinge and a rotating shaft, wherein a convex spherical surface is arranged on the lower end surface of the upper spherical hinge, a concave spherical surface is arranged on the upper end surface of the lower spherical hinge, the convex spherical surface on the lower side of the upper spherical hinge is adapted to the concave spherical surface on the upper side of the lower spherical hinge, shaft holes are reserved in the shaft centers of the upper spherical hinge and the lower spherical hinge, two ends of the rotating shaft are respectively rotatably adapted to the shaft holes of the upper spherical hinge and the lower spherical hinge, the upper spherical hinge and the lower spherical hinge are reinforced concrete prefabricated members, a first protection plate is arranged outside the convex spherical surface on the lower side of the upper spherical hinge, a second protection plate is arranged outside the concave spherical surface on the upper side of the lower spherical hinge, and the outer surface of the first protection plate is matched with the outer surface of the second protection plate so as to form a spherical hinge rotating friction pair.
Further, a plurality of circles of first annular steel belts which are concentrically arranged are embedded in the convex spherical surface at the lower side of the upper spherical hinge, the first protection plate is fixed on the first annular steel belts, a plurality of circles of second annular steel belts which are concentrically arranged are embedded in the concave spherical surface at the upper side of the lower spherical hinge, and the second protection plate is fixed on the second annular steel belts.
Further, the first protection plate adopts the corrosion resistant plate, the corrosion resistant plate welded fastening is in first annular steel is out of band, the second protection plate adopts the ultra-high molecular weight polyethylene board, be provided with countersunk head screw hole on the ultra-high molecular weight polyethylene board, the ultra-high molecular weight polyethylene board is through screwing in countersunk head screw fixation in the second annular steel is out of band.
Further, the upper spherical hinge and the lower spherical hinge form the shaft hole by embedding sleeves in the shaft center respectively.
On the other hand, the invention provides a prefabricated die for an ultrahigh-strength concrete prefabricated swivel spherical hinge, which comprises an upper spherical hinge prefabricated die and a lower spherical hinge prefabricated die, wherein the upper spherical hinge prefabricated die comprises an upper spherical hinge bottom die and an upper spherical hinge side annular die fixedly arranged on the upper spherical hinge bottom die, the top surface of the upper spherical hinge bottom die is provided with a concave spherical surface, the lower spherical hinge prefabricated die comprises a lower spherical hinge bottom die and a lower spherical hinge side annular die fixedly arranged on the lower spherical hinge bottom die, and the top surface of the lower spherical hinge bottom die is provided with a convex spherical surface.
Further, the prefabricated mold is provided with a plurality of upper spherical hinge side ring molds and lower spherical hinge side ring molds with different diameters, wherein the upper spherical hinge side ring molds with different diameters can be respectively fixed on the upper spherical hinge bottom mold through bolts, and the lower spherical hinge side ring molds with different diameters can be respectively fixed on the lower spherical hinge bottom mold through bolts.
Further, the upper spherical hinge side ring die is formed by splicing at least two arc-shaped modules through bolts, and the lower spherical hinge side ring die is also formed by splicing at least two arc-shaped modules through bolts.
On the other hand, the invention provides a preparation method of the ultra-high strength concrete prefabricated swivel spherical hinge, which comprises the following steps:
S10, assembling an upper spherical hinge prefabrication die and a lower spherical hinge prefabrication die;
Step S20, binding reinforcing steel bars, respectively loading the reinforcing steel bars of the upper spherical hinge into an upper spherical hinge prefabrication mould, and loading the reinforcing steel bars of the lower spherical hinge into a lower spherical hinge prefabrication mould;
step S30, installing sleeves at the centers of an upper spherical hinge prefabrication die and a lower spherical hinge prefabrication die respectively;
S40, pouring high-performance concrete into an upward spherical hinge prefabricating die and a lower spherical hinge prefabricating die respectively;
S50, demolding and curing;
Step S60, installing a first protection plate on the convex spherical surface of the prefabricated upper spherical hinge, and installing a second protection plate on the concave spherical surface of the prefabricated lower spherical hinge.
Further, the first protection plate is a stainless steel plate, and the stainless steel plate is installed by the following steps:
step S511, punching the stainless steel plate into the shape of the convex spherical surface of the upper spherical hinge, and punching holes in the punched stainless steel plate at positions corresponding to the convex spherical surface of the upper spherical hinge and embedded with the first annular steel belt;
step S512, adhering a stainless steel plate to the convex spherical surface of the upper spherical hinge, and welding the position of an opening of the stainless steel plate to the first annular steel belt;
and step S513, polishing the welding part of the stainless steel plate.
Further, the second protection plate is an ultra-high molecular weight polyethylene plate, and the mounting steps of the ultra-high molecular weight polyethylene plate are as follows:
Step S521, manufacturing an ultra-high molecular weight polyethylene plate into the shape of the concave spherical surface of the lower spherical hinge, and arranging countersunk screw holes on the ultra-high molecular weight polyethylene plate at positions corresponding to the positions of the concave spherical surface of the lower spherical hinge, where the second annular steel belt is embedded;
And step S522, attaching the ultra-high molecular weight polyethylene plate into the concave spherical surface of the upper spherical hinge, and screwing countersunk screws into the countersunk screw holes so as to fix the ultra-high molecular weight polyethylene plate on the second annular steel belt through the countersunk screws.
The beneficial effects of the invention are as follows: the upper spherical hinge and the lower spherical hinge of the ultra-high strength concrete prefabricated swivel spherical hinge are made of reinforced concrete prefabricated components, the upper spherical hinge and the lower spherical hinge are directly prefabricated through the prefabricated mold, after the upper spherical hinge and the lower spherical hinge are prefabricated and formed, the convex spherical surface of the upper spherical hinge and the concave spherical surface of the lower spherical hinge are respectively provided with a protection plate to form a friction pair, the front stage is only required to be put into the prefabricated mold, the later stage is only required to be put into reinforced concrete materials, the cost is greatly reduced, the upper spherical hinge and the lower spherical hinge are directly prefabricated and formed by reinforced concrete, a steel shell is not required to be manufactured, and large-scale machining equipment is not required to be used for finish machining the spherical surface, so that the machining difficulty is greatly reduced, and the production period is shortened.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic structural view of an ultra-high strength concrete prefabricated swivel ball joint according to an embodiment of the invention;
FIG. 2 is a schematic structural view of a spherical hinge prefabricating mold according to an embodiment of the present invention;
Fig. 3 is a schematic structural view of a spherical hinge prefabricating mold according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating the prefabrication of a ball joint according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating prefabrication of a spherical hinge according to an embodiment of the present invention.
In the attached drawing, a 100-upper spherical hinge; 110-a first protective plate; 120-a first endless steel belt; 200-lower spherical hinge; 210-a second protective plate; 220-a second endless steel belt; 230-countersunk head screws; 300-rotating shaft; 310-shaft holes; 320-sleeve; 400-upper spherical hinge prefabricating a die; 410-upper spherical hinge bottom die; 420-upper spherical hinge side ring mold; 500-prefabricating a die for the lower spherical hinge; 510-a bottom die of a lower spherical hinge; 520-lower spherical hinge side ring mould.
Detailed Description
Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.
As shown in fig. 1, an embodiment of the present invention provides an ultra-high strength concrete prefabricated swivel ball joint, which includes an upper ball joint 100, a lower ball joint 200, and a rotation shaft 300.
The lower terminal surface of going up the ball pivot 100 is provided with the convex sphere, the up end of lower ball pivot 200 is equipped with the concave sphere, the convex sphere of going up the ball pivot 100 downside is adapted in the concave sphere of lower ball pivot 200 upside, the axle center of going up ball pivot 100 and lower ball pivot 200 is all reserved with shaft hole 310, the both ends of pivot 300 rotate respectively in the shaft hole 310 of adaptation on going up ball pivot 100 and lower ball pivot 200, go up ball pivot 100 and lower ball pivot 200 and be reinforced concrete prefabricated component, install first protection shield 110 outside the convex sphere of going up the ball pivot 100 downside, install second protection shield 210 outside the concave sphere of lower ball pivot 200 upside, the surface of first protection shield 110 and the surface cooperation of second protection shield 210, in order to constitute ball pivot revolute friction pair.
In order to facilitate the installation and fixation of the first protection plate 110 on the convex spherical surface of the upper spherical hinge 100, a plurality of circles of first annular steel belts 120 concentrically arranged are pre-embedded in the convex spherical surface of the lower side of the upper spherical hinge 100, the first protection plate 110 is fixed on the first annular steel belts 120, and likewise, in order to facilitate the installation and fixation of the second protection plate 210 on the concave spherical surface of the lower spherical hinge 200, a plurality of circles of second annular steel belts 220 concentrically arranged are pre-embedded in the concave spherical surface of the upper side of the lower spherical hinge 200, and the second protection plate 210 is fixed on the second annular steel belts 220.
Preferably, the first protection plate 110 is made of a stainless steel plate, the thickness of the stainless steel plate is about 3mm thick, the stainless steel plate is welded and fixed outside the first annular steel belt 120, when the stainless steel plate is welded, holes are formed in the stainless steel plate, the positions of the holes of the stainless steel plate are welded on the first annular steel belt 120, the welded positions of the stainless steel plate are polished after the welding is finished, the second protection plate 210 is made of an ultra-high molecular weight polyethylene plate, the thickness of the ultra-high molecular weight polyethylene plate is about 8mm thick, countersunk screw holes are formed in the ultra-high molecular weight polyethylene plate, and the ultra-high molecular weight polyethylene plate is fixed outside the second annular steel belt 220 through countersunk screw 230 screwed into the countersunk screw holes.
In this embodiment, the upper spherical hinge 100 and the lower spherical hinge 200 are respectively embedded with the sleeve 320 to form the shaft hole 310, and when the upper spherical hinge 100 and the lower spherical hinge 200 are prefabricated, the sleeve 320 is installed at the axial center position of the upper spherical hinge 100 and the lower spherical hinge 200, and then concrete is poured to form the shaft hole 310.
As shown in fig. 2 to 5, the embodiment of the present invention further provides a prefabricated mold for ultra-high strength concrete prefabricated swivel spherical hinge, which comprises an upper spherical hinge prefabricated mold 400 and a lower spherical hinge prefabricated mold 500, wherein the upper spherical hinge prefabricated mold 400 comprises an upper spherical hinge bottom mold 410 and an upper spherical hinge side annular mold 420 fixedly mounted on the upper spherical hinge bottom mold 410, the top surface of the upper spherical hinge bottom mold 410 is provided with a concave spherical surface, the lower spherical hinge prefabricated mold 500 comprises a lower spherical hinge bottom mold 510 and a lower spherical hinge side annular mold 520 fixedly mounted on the lower spherical hinge bottom mold 510, and the top surface of the lower spherical hinge bottom mold 510 is provided with a convex spherical surface.
The upper spherical hinge prefabrication die 400 is used for prefabricating the upper spherical hinge 100, the lower spherical hinge prefabrication die 500 is used for prefabricating the lower spherical hinge 200, the upper spherical hinge prefabrication die 400 and the lower spherical hinge prefabrication die 500 are formed by casting ZG270-500 materials, the materials are common materials in the die industry, the performance is stable, the processing is easy, the materials are cast according to the structural dimension designed according to the drawing, the finish machining is carried out by using machining equipment, and the design requirement is met.
Preferably, the prefabricated mold is provided with a plurality of upper spherical hinge side ring molds 420 and lower spherical hinge side ring molds 520 of different diameters, the upper spherical hinge side ring molds 420 of different diameters may be respectively fixed to the upper spherical hinge bottom mold 410 by bolts, and the lower spherical hinge side ring molds 520 of different diameters may be respectively fixed to the lower spherical hinge bottom mold 510 by bolts. According to the application, the upper spherical hinge 100 with different diameters can be prefabricated by installing the upper spherical hinge side ring mold 420 with different diameters on the upper spherical hinge bottom mold 410, and the lower spherical hinge 200 with different diameters can be prefabricated by installing the lower spherical hinge side ring mold 520 with different diameters on the lower spherical hinge bottom mold 510, so that the production of the spherical hinge with different tonnages can be realized according to the requirements, and the adaptability is very strong. It should be noted that, in the prefabrication, the bolt holes on the upper spherical hinge bottom die 410 located at the inner side of the installed upper spherical hinge side ring die 420 and the bolt holes on the lower spherical hinge bottom die 510 located at the inner side of the installed lower spherical hinge side ring die 520 need to be plugged so as to avoid slurry leakage of the bolt holes on the upper spherical hinge bottom die 410 and the lower spherical hinge bottom die 510.
More optionally, in order to facilitate the demolding, the upper spherical hinge side ring mold 420 is formed by splicing at least two arc-shaped modules through bolts, and the lower spherical hinge side ring mold 520 is also formed by splicing at least two arc-shaped modules through bolts.
As shown in fig. 1 to 5, the embodiment of the invention also provides a preparation method of the ultra-high strength concrete prefabricated swivel spherical hinge, which comprises the following steps:
Step S10, assembling an upper spherical hinge prefabrication die 400 and a lower spherical hinge prefabrication die 500;
step S20, binding reinforcing steel bars, and respectively loading the reinforcing steel bars of the upper spherical hinge 100 into an upper spherical hinge prefabrication mould 400, and loading the reinforcing steel bars of the lower spherical hinge 200 into a lower spherical hinge prefabrication mould 500;
Step S30, installing sleeves 320 at the centers of the upper spherical hinge prefabrication mould 400 and the lower spherical hinge prefabrication mould 500 respectively;
s40, pouring high-performance concrete in an upward spherical hinge prefabrication mould 400 and a lower spherical hinge prefabrication mould 500 respectively, wherein the strength of the high-performance concrete is C120-C200;
Step S50, demolding and curing, strength before demolding and curing flow after demolding are strictly controlled, the curing process flow of concrete is not described in detail, and the concrete is cured after the strength completely meets the design requirement;
In step S60, the first protection plate 110 is installed on the convex spherical surface of the pre-formed upper spherical hinge 100, and the second protection plate 210 is installed on the concave spherical surface of the pre-formed lower spherical hinge 200.
In this embodiment, the first protection plate 110 is specifically a stainless steel plate, and the steps of installing the stainless steel plate are as follows:
Step S511, punching a stainless steel plate into the shape of the convex spherical surface of the upper spherical hinge 100, and punching holes on the punched stainless steel plate at positions corresponding to the convex spherical surface of the upper spherical hinge 100 and embedding the first annular steel belt 120;
Step S512, adhering a stainless steel plate to the convex spherical surface of the upper spherical hinge 100, and welding the opening position of the stainless steel plate to the first annular steel belt 120;
and step S513, polishing the welding part of the stainless steel plate.
According to the application, the stainless steel plate is fixed on the convex spherical surface of the upper spherical hinge 100 through the steps of stamping forming, punching, welding and polishing, so that the stainless steel plate is fixed, the convex spherical surface formed on the outer surface of the stainless steel plate is smooth, the design requirement can be met, and the convex spherical surface of the upper spherical hinge 100 does not need to be finished by large-scale machining equipment, so that the machining difficulty is greatly reduced.
In this embodiment, the second protection plate 210 is an ultra-high molecular weight polyethylene plate, and the mounting steps of the ultra-high molecular weight polyethylene plate are as follows:
step S521, manufacturing an ultra-high molecular weight polyethylene plate into the shape of the concave spherical surface of the lower spherical hinge 200, and arranging countersunk screw holes on the ultra-high molecular weight polyethylene plate at positions corresponding to the concave spherical surface of the lower spherical hinge 200 where the second annular steel belt 220 is embedded;
In step S522, an ultra-high molecular weight polyethylene plate is attached to the concave spherical surface of the upper spherical hinge 100, and countersunk screws 230 are screwed into the countersunk screw holes, so that the ultra-high molecular weight polyethylene plate is fixed to the second annular steel belt 220 by the countersunk screws 230.
The ultra-high molecular weight polyethylene plate is fixed on the second annular steel belt 220 embedded in the concave spherical surface of the lower spherical hinge 200 through the countersunk head screw 230, so that the installation is convenient and quick.
In summary, the upper spherical hinge 100 and the lower spherical hinge 200 of the ultra-high strength concrete prefabricated swivel spherical hinge of the application are all made of reinforced concrete prefabricated components, during manufacturing, the upper spherical hinge 100 and the lower spherical hinge 200 are directly prefabricated and produced by a prefabricated mold, after the upper spherical hinge 100 and the lower spherical hinge 200 are prefabricated and molded, the convex spherical surface of the upper spherical hinge 100 and the concave spherical surface of the lower spherical hinge 200 are respectively provided with the protection plate to form a friction pair, the front stage only needs to be put into the prefabricated mold, the later stage only needs to be put into reinforced concrete materials, the cost is greatly reduced, the upper spherical hinge 100 and the lower spherical hinge 200 are directly prefabricated and molded by reinforced concrete, the steel shell is not required to be manufactured, and large-scale machining equipment is not required to be used for finish machining the spherical surfaces, so that the machining difficulty is greatly reduced, and the production period is shortened.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
Claims (6)
1. A preparation method of an ultra-high strength concrete prefabricated swivel spherical hinge is characterized by comprising the following steps of:
The ultra-high strength concrete prefabricated swivel spherical hinge comprises an upper spherical hinge, a lower spherical hinge and a rotating shaft, wherein a convex spherical surface is arranged on the lower end face of the upper spherical hinge, a concave spherical surface is arranged on the upper end face of the lower spherical hinge, the convex spherical surface on the lower side of the upper spherical hinge is adapted to the concave spherical surface on the upper side of the lower spherical hinge, shaft holes are reserved in the shaft centers of the upper spherical hinge and the lower spherical hinge, and two ends of the rotating shaft are respectively rotatably adapted to the shaft holes on the upper spherical hinge and the lower spherical hinge;
the upper spherical hinge and the lower spherical hinge are reinforced concrete prefabricated parts, a first protection plate is arranged outside a convex spherical surface at the lower side of the upper spherical hinge, a second protection plate is arranged outside a concave spherical surface at the upper side of the lower spherical hinge, and the outer surface of the first protection plate is matched with the outer surface of the second protection plate to form a spherical hinge rotation friction pair;
a plurality of circles of first annular steel belts which are concentrically arranged are embedded in the convex spherical surface at the lower side of the upper spherical hinge, the first protection plate is fixed on the first annular steel belts, a plurality of circles of second annular steel belts which are concentrically arranged are embedded in the concave spherical surface at the upper side of the lower spherical hinge, and the second protection plate is fixed on the second annular steel belts;
the preparation method of the ultra-high strength concrete prefabricated swivel spherical hinge comprises the following steps:
S10, assembling an upper spherical hinge prefabrication die and a lower spherical hinge prefabrication die, wherein the upper spherical hinge prefabrication die comprises an upper spherical hinge bottom die and an upper spherical hinge side annular die fixedly installed on the upper spherical hinge bottom die, the top surface of the upper spherical hinge bottom die is provided with a concave spherical surface, the lower spherical hinge prefabrication die comprises a lower spherical hinge bottom die and a lower spherical hinge side annular die fixedly installed on the lower spherical hinge bottom die, and the top surface of the lower spherical hinge bottom die is provided with a convex spherical surface;
Step S20, binding reinforcing steel bars, respectively loading the reinforcing steel bars of the upper spherical hinge into an upper spherical hinge prefabrication mould, and loading the reinforcing steel bars of the lower spherical hinge into a lower spherical hinge prefabrication mould;
step S30, installing sleeves at the centers of an upper spherical hinge prefabrication die and a lower spherical hinge prefabrication die respectively;
S40, pouring high-performance concrete into an upward spherical hinge prefabricating die and a lower spherical hinge prefabricating die respectively;
S50, demolding and curing;
Step S60, installing a first protection plate on the convex spherical surface of the prefabricated upper spherical hinge, and installing a second protection plate on the concave spherical surface of the prefabricated lower spherical hinge.
2. The method for preparing the ultra-high strength concrete prefabricated rotating body spherical hinge according to claim 1, which is characterized in that: the first protection plate adopts the corrosion resistant plate, the corrosion resistant plate welded fastening is in first annular steel is out of band, the second protection plate adopts the ultra-high molecular weight polyethylene board, be provided with countersunk screw hole on the ultra-high molecular weight polyethylene board, the ultra-high molecular weight polyethylene board is through the countersunk screw of screwing in countersunk screw hole be fixed in the second annular steel is out of band.
3. The method for preparing the ultra-high strength concrete prefabricated rotating body spherical hinge according to claim 1, which is characterized in that: the prefabrication die is provided with a plurality of upper spherical hinge side ring dies and lower spherical hinge side ring dies with different diameters, wherein the upper spherical hinge side ring dies with different diameters can be respectively fixed on an upper spherical hinge bottom die through bolts, and the lower spherical hinge side ring dies with different diameters can be respectively fixed on a lower spherical hinge bottom die through bolts.
4. The method for preparing the ultra-high strength concrete prefabricated rotating body spherical hinge according to claim 3, which is characterized in that: the upper spherical hinge side ring die is formed by splicing at least two arc-shaped modules through bolts, and the lower spherical hinge side ring die is also formed by splicing at least two arc-shaped modules through bolts.
5. The method for preparing the ultra-high strength concrete prefabricated rotating body spherical hinge according to claim 1, which is characterized in that: the first protection plate is a stainless steel plate, and the stainless steel plate is installed by the following steps:
step S511, punching the stainless steel plate into the shape of the convex spherical surface of the upper spherical hinge, and punching holes in the punched stainless steel plate at positions corresponding to the convex spherical surface of the upper spherical hinge and embedded with the first annular steel belt;
step S512, adhering a stainless steel plate to the convex spherical surface of the upper spherical hinge, and welding the position of an opening of the stainless steel plate to the first annular steel belt;
and step S513, polishing the welding part of the stainless steel plate.
6. The method for preparing the ultra-high strength concrete prefabricated rotating body spherical hinge according to claim 1, which is characterized in that: the second protection plate is an ultra-high molecular weight polyethylene plate, and the mounting steps of the ultra-high molecular weight polyethylene plate are as follows:
Step S521, manufacturing an ultra-high molecular weight polyethylene plate into the shape of the concave spherical surface of the lower spherical hinge, and arranging countersunk screw holes on the ultra-high molecular weight polyethylene plate at positions corresponding to the positions of the concave spherical surface of the lower spherical hinge, where the second annular steel belt is embedded;
And step S522, attaching the ultra-high molecular weight polyethylene plate into the concave spherical surface of the upper spherical hinge, and screwing countersunk screws into the countersunk screw holes so as to fix the ultra-high molecular weight polyethylene plate on the second annular steel belt through the countersunk screws.
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| CN102359064A (en) * | 2011-10-26 | 2012-02-22 | 中铁二十四局集团福建铁路建设有限公司 | Reinforced concrete spherical hinge structure of swing bridge and manufacturing process thereof |
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| CN206204800U (en) * | 2016-08-30 | 2017-05-31 | 洛阳双瑞特种装备有限公司 | A kind of Bridge Rotation Construction Technique rotary body device |
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| CN105155429A (en) * | 2015-07-02 | 2015-12-16 | 北京交达铁工科技有限公司 | Spherical hinge for swivel construction, machining method for spherical hinge and installation method for spherical hinge |
| CN206581156U (en) * | 2017-03-07 | 2017-10-24 | 中铁十局集团第二工程有限公司 | Ball pivot model sheetinstallat structure on a kind of bridge plane swivel |
| CN107142842A (en) * | 2017-06-12 | 2017-09-08 | 柳州东方工程橡胶制品有限公司 | One kind has high-bearing capacity Rotary ball hinge device |
| CN214882896U (en) * | 2021-03-15 | 2021-11-26 | 陕西国华基业科工贸有限公司 | Ultrahigh-strength concrete prefabricated swivel spherical hinge and prefabricated mould thereof |
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