CN112813802A - Ultrahigh-strength concrete prefabricated swivel spherical hinge, prefabricated mold and preparation method thereof - Google Patents
Ultrahigh-strength concrete prefabricated swivel spherical hinge, prefabricated mold and preparation method thereof Download PDFInfo
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- CN112813802A CN112813802A CN202110275768.XA CN202110275768A CN112813802A CN 112813802 A CN112813802 A CN 112813802A CN 202110275768 A CN202110275768 A CN 202110275768A CN 112813802 A CN112813802 A CN 112813802A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000004567 concrete Substances 0.000 title abstract description 12
- 239000011372 high-strength concrete Substances 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 10
- 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 33
- 239000010935 stainless steel Substances 0.000 claims description 33
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 29
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 29
- 238000003466 welding Methods 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000004574 high-performance concrete Substances 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 4
- 238000009417 prefabrication Methods 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 2
- 238000012545 processing Methods 0.000 abstract description 7
- 238000003754 machining Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 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
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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- 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
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- 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
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- 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
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- 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
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- 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 a super-high strength concrete prefabricated swivel spherical hinge, a prefabricated mould and a preparation method thereof, the ultrahigh-strength concrete prefabricated swivel spherical hinge comprises an upper spherical hinge, a lower spherical hinge and a rotating shaft, wherein 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 matched with the concave spherical surface at the upper side of the lower spherical hinge, shaft holes are reserved on the axes of the upper spherical hinge and the lower spherical hinge, two ends of the rotating shaft are respectively and rotatably matched in the shaft holes on the upper spherical hinge and the lower spherical hinge, the upper spherical hinge and the lower spherical hinge are both reinforced concrete prefabricated components, a first protection plate is arranged outside the convex spherical surface at the lower side of the upper spherical hinge, a second protection plate is arranged outside the concave spherical surface at the upper side of the lower spherical hinge, 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. 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 ultrahigh-strength concrete prefabricated swivel spherical hinge, a prefabricated mold and a preparation method thereof.
Background
In recent years, with the increasingly mature bridge technology in China, the high-speed railway bridge in China develops rapidly, and with the high-speed development of bridges, the cross construction of bridges and the existing railway and highway is more and more, in recent years, the railway department requires that a swivel construction method is required to be adopted to cross the existing railway and highway, so the demand of swivel ball joints is increasing day by day.
At present, most of swivel spherical hinges produced in China are steel spherical hinges, all machining materials of the steel spherical hinges are steel materials, the steel consumption is large, the machining and welding deformation is difficult to control, the diameter size of the spherical hinges is large, the transportation difficulty is large, finally, machining of spherical surfaces is required to be carried out through large-scale machining equipment, the machining difficulty is large, the period is long, the transportation cost is high, and the swivel spherical hinges are ultra-wide objects under normal conditions; in addition, the swivel ball hinge is an RPC-steel combined ball hinge (refer to Chinese invention patent CN105088966A specifically), the processing of the RPC-steel mixed ball hinge is the mixed use of steel and RPC as the name suggests, firstly, the steel needs to be pressed, secondly, concrete is poured into a steel shell, then, after curing is carried out to reach the design strength, and then, the spherical surface is finely processed, although the volume is smaller than that of the steel ball hinge, the guarantee of 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 mold and a preparation method thereof, and aims to solve the problems of high processing difficulty, high manufacturing cost and long production period of the existing swivel spherical hinge.
On one hand, the invention provides an ultrahigh-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 matched with the concave spherical surface on the upper side of the lower spherical hinge, shaft holes are reserved on the axes of the upper spherical hinge and the lower spherical hinge, two ends of the rotating shaft are respectively and rotatably matched with the shaft holes on the upper spherical hinge and the lower spherical hinge, the upper spherical hinge and the lower spherical hinge are both reinforced concrete prefabricated components, 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.
Furthermore, a plurality of circles of first annular steel belts which are concentrically arranged are pre-buried in the convex spherical surface on 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 pre-buried in the concave spherical surface on the upper side of the lower spherical hinge, and the second protection plate is fixed on the second annular steel belts.
Further, first protection shield adopts corrosion resistant plate, corrosion resistant plate welded fastening in outside the first annular steel band, the second protection shield adopts ultra high molecular weight polyethylene board, be provided with countersunk screw hole on the ultra high molecular weight polyethylene board, ultra high molecular weight polyethylene board is fixed in outside the second annular steel band through the countersunk screw who twists countersunk screw hole.
Furthermore, 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 prefabricating die for prefabricating a swivel ball hinge by ultrahigh-strength concrete, which comprises an upper ball hinge prefabricating die and a lower ball hinge prefabricating die, wherein the upper ball hinge prefabricating die comprises an upper ball hinge bottom die and an upper ball hinge side ring die fixedly installed on the upper ball hinge bottom die, the top surface of the upper ball hinge bottom die is provided with a concave spherical surface, the lower ball hinge prefabricating die comprises a lower ball hinge bottom die and a lower ball hinge side ring die fixedly installed on the lower ball hinge bottom die, and the top surface of the lower ball hinge bottom die is provided with a convex spherical surface.
Furthermore, the prefabricated mould is provided with a plurality of upper spherical hinge side ring moulds and lower spherical hinge side ring moulds with different diameters, the upper spherical hinge side ring moulds with different diameters can be respectively fixed on the upper spherical hinge bottom mould through bolts, and the lower spherical hinge side ring moulds with different diameters can be respectively fixed on the lower spherical hinge bottom mould through bolts.
Furthermore, 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 ultrahigh-strength concrete prefabricated swivel ball hinge, which comprises the following steps:
step S10, assembling an upper spherical hinge prefabricated mould and a lower spherical hinge prefabricated mould;
step S20, binding the reinforcing mesh, and respectively loading the reinforcing mesh of the upper spherical hinge into an upper spherical hinge prefabricated mold, and loading the reinforcing mesh of the lower spherical hinge into a lower spherical hinge prefabricated mold;
step S30, respectively installing sleeves in the centers of the upper spherical hinge prefabricated mould and the lower spherical hinge prefabricated mould;
step S40, respectively pouring high-performance concrete into the upper spherical hinge prefabricated mould and the lower spherical hinge prefabricated mould;
step S50, demolding and maintaining;
and step S60, mounting a first protection plate on the convex spherical surface of the upper spherical hinge which is prefabricated and formed, and mounting a second protection plate on the concave spherical surface of the lower spherical hinge which is prefabricated and formed.
Further, the first protection plate is a stainless steel plate, and the stainless steel plate is mounted by the following steps:
step S511, stamping the stainless steel plate into the shape of a convex spherical surface of the upper spherical hinge, and punching holes at positions of the stamped stainless steel plate corresponding to the positions of the pre-embedded first annular steel bands of the convex spherical surface of the upper spherical hinge;
step S512, attaching a stainless steel plate to the convex spherical surface of the upper spherical hinge, and welding the hole position of the stainless steel plate on the first annular steel belt;
step S513, polishing the welding position of the stainless steel plate.
Further, the second protection plate is an ultra-high molecular weight polyethylene plate, and the ultra-high molecular weight polyethylene plate is mounted by the following steps:
step S521, manufacturing the ultra-high molecular weight polyethylene plate into the shape of a concave spherical surface of the lower spherical hinge, and arranging a countersunk head screw hole at a position, corresponding to the second annular steel belt pre-embedded in the concave spherical surface of the lower spherical hinge, on the ultra-high molecular weight polyethylene plate;
step S522, the ultra-high molecular weight polyethylene plate is attached to the concave spherical surface of the upper spherical hinge, and countersunk screws are screwed into the countersunk screw holes, so that the ultra-high molecular weight polyethylene plate is fixed on the second annular steel band by the countersunk screws.
The invention has the beneficial effects that: this prefabricated swivel spherical hinge of super high strength concrete goes up spherical hinge and lower spherical hinge and all adopts reinforced concrete prefabricated component, during the manufacturing, go up spherical hinge and lower spherical hinge direct through prefabricated mould prefabricated production, go up spherical hinge and lower spherical hinge prefabricated shaping back, respectively last spherical hinge convex spherical surface and lower spherical hinge concave spherical surface installation protection shield form friction pair can, only need drop into prefabricated mould earlier stage, only need drop into reinforced concrete material later stage, great reduction in cost, go up spherical hinge and lower spherical hinge and all adopt the direct prefabricated shaping of reinforced concrete, need not make the steel casing, also need not use large-scale machine tooling equipment to carry out the finish machining to the sphere, greatly reduced the processing degree of difficulty, production cycle has been shortened.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural diagram of a super-high-strength concrete prefabricated swivel ball hinge according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of an upper spherical hinge prefabricating mold according to an embodiment of the invention;
fig. 3 is a schematic structural view of a lower spherical hinge prefabricated mold according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a prefabricated upper spherical hinge according to an embodiment of the present invention;
fig. 5 is a schematic diagram of the prefabrication of the lower spherical hinge according to the embodiment of the invention.
In the drawing, 100-is a 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 annular steel strip; 230-countersunk head screws; 300-a rotating shaft; 310-shaft hole; 320-a sleeve; 400-prefabricating a mould by using a spherical hinge; 410-mounting a spherical hinge bottom die; 420-upper spherical hinge side ring die; 500-lower spherical hinge prefabricating a mould; 510-lowering the spherical hinge bottom die; 520-lower spherical hinge side ring mold.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
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 rotating shaft 300.
The lower end surface of the upper spherical hinge 100 is provided with a convex spherical surface, the upper end surface of the lower spherical hinge 200 is provided with a concave spherical surface, the convex spherical surface at the lower side of the upper spherical hinge 100 is matched with the concave spherical surface at the upper side of the lower spherical hinge 200, shaft holes 310 are reserved at the axes of the upper spherical hinge 100 and the lower spherical hinge 200, two ends of the rotating shaft 300 are respectively and rotatably matched with the shaft holes 310 on the upper spherical hinge 100 and the lower spherical hinge 200, the upper spherical hinge 100 and the lower spherical hinge 200 are both reinforced concrete prefabricated components, a first protective plate 110 is arranged outside the convex spherical surface at the lower side of the upper spherical hinge 100, a second protective plate 210 is arranged outside the concave spherical surface at the upper side of the lower spherical hinge 200, and the outer surface of the first protective plate 110 is matched with the outer surface.
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 concentrically arranged first annular steel strips 120 are embedded in the convex spherical surface on the lower side of the upper spherical hinge 100, the first protection plate 110 is fixed to the first annular steel strips 120, and similarly, 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 concentrically arranged second annular steel strips 220 are embedded in the concave spherical surface on the upper side of the lower spherical hinge 200, and the second protection plate 210 is fixed to the second annular steel strips 220.
Preferably, the first protection plate 110 is a stainless steel plate, the thickness of the stainless steel plate is about 3mm, the stainless steel plate is welded and fixed outside the first annular steel band 120, when the stainless steel plate is welded, a hole needs to be formed in the stainless steel plate firstly, then the hole of the stainless steel plate is welded on the first annular steel band 120, after the welding is completed, the welding position of the stainless steel plate needs to be polished, the second protection plate 210 is an ultra-high molecular weight polyethylene plate, the thickness of the ultra-high molecular weight polyethylene plate is about 8mm, a countersunk screw hole is formed in the ultra-high molecular weight polyethylene plate, and the ultra-high molecular weight polyethylene plate is fixed outside the second annular steel band 220 through a countersunk screw 230 screwed into the countersunk screw.
In this embodiment, the upper spherical hinge 100 and the lower spherical hinge 200 respectively form the shaft hole 310 by embedding the sleeve 320 in the shaft center, and when the upper spherical hinge 100 and the lower spherical hinge 200 are prefabricated, the sleeve 320 is installed at the shaft 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, an embodiment of the present invention further provides a prefabricating mold for an ultrahigh-strength concrete prefabricating swivel ball hinge, including an upper ball hinge prefabricating mold 400 and a lower ball hinge prefabricating mold 500, where the upper ball hinge prefabricating mold 400 includes an upper ball hinge bottom mold 410 and an upper ball hinge side ring mold 420 fixedly mounted on the upper ball hinge bottom mold 410, a concave spherical surface is disposed on a top surface of the upper ball hinge bottom mold 410, the lower ball hinge prefabricating mold 500 includes a lower ball hinge bottom mold 510 and a lower ball hinge side ring mold 520 fixedly mounted on the lower ball hinge bottom mold 510, and a convex spherical surface is disposed on a top surface of the lower ball hinge bottom mold 510.
The upper spherical hinge prefabricating mould 400 is used for prefabricating the upper spherical hinge 100, the lower spherical hinge prefabricating mould 500 is used for prefabricating the lower spherical hinge 200, the upper spherical hinge prefabricating mould 400 and the lower spherical hinge prefabricating mould 500 are cast by adopting ZG270-500 materials, the materials are common materials in the mould industry, the performance is stable, the processing is easy, the materials are cast according to the structural size designed by a drawing, and the subsequent machining equipment is used for performing finish machining to meet the design requirement.
Preferably, the prefabricated mold is equipped with a plurality of upper and lower spherical hinge side ring molds 420 and 520 of different diameters, the upper spherical hinge side ring molds 420 of different diameters may be respectively bolted to the upper spherical hinge bottom mold 410, and the lower spherical hinge side ring molds 520 of different diameters may be respectively bolted to the lower spherical hinge bottom mold 510. According to the method, the upper spherical hinge side ring molds 420 with different diameters can be installed on the upper spherical hinge bottom mold 410 to prefabricate the upper spherical hinges 100 with different diameters, and the lower spherical hinge side ring molds 520 with different diameters can be installed on the lower spherical hinge bottom mold 510 to prefabricate the lower spherical hinges 200 with different diameters, so that the production of spherical hinges with different tonnages can be realized according to requirements, and the adaptability is high. It should be noted that, during the prefabrication, the bolt holes on the upper spherical hinge bottom die 410 located inside the installed upper spherical hinge side ring die 420 and the bolt holes on the lower spherical hinge bottom die 510 located inside the installed lower spherical hinge side ring die 520 need to be plugged, so as to prevent the bolt holes on the upper spherical hinge bottom die 410 and the lower spherical hinge bottom die 510 from leaking slurry.
More preferably, in order to facilitate the removal of the mold, the upper spherical hinge side ring mold 420 is formed by splicing at least two arc-shaped modules by bolts, and the lower spherical hinge side ring mold 520 is also formed by splicing at least two arc-shaped modules by bolts.
As shown in fig. 1 to 5, an embodiment of the present invention further provides a method for manufacturing an ultra-high-strength concrete prefabricated swivel ball hinge, including the following steps:
step S10, assembling the upper spherical hinge prefabricated mold 400 and the lower spherical hinge prefabricated mold 500;
step S20, binding the reinforcing mesh, and respectively loading the reinforcing mesh of the upper spherical hinge 100 into an upper spherical hinge prefabricated mould 400 and loading the reinforcing mesh of the lower spherical hinge 200 into a lower spherical hinge prefabricated mould 500;
step S30, installing the sleeve 320 in the center of the upper spherical hinge prefabricated mold 400 and the lower spherical hinge prefabricated mold 500 respectively;
step S40, respectively pouring high-performance concrete into the upper spherical hinge prefabricated mould 400 and the lower spherical hinge prefabricated mould 500, wherein the strength of the high-performance concrete is C120-C200;
step S50, demolding and curing, the strength before demolding and the curing process after demolding are strictly controlled, the curing process of concrete is not described in detail in the application, and the concrete can be cured after the strength completely meets the design requirement;
in step S60, the first protection plate 110 is mounted on the convex spherical surface of the preformed upper spherical hinge 100, and the second protection plate 210 is mounted on the concave spherical surface of the preformed lower spherical hinge 200.
In this embodiment, the first protection plate 110 is specifically a stainless steel plate, and the installation steps of the stainless steel plate are as follows:
step S511, stamping the stainless steel plate into the shape of the convex spherical surface of the upper spherical hinge 100, and punching holes at positions of the stamped stainless steel plate corresponding to the convex spherical surface of the upper spherical hinge 100 and pre-embedding the first annular steel belt 120;
step S512, attaching a stainless steel plate to the convex spherical surface of the upper spherical hinge 100, and welding the hole position of the stainless steel plate on the first annular steel belt 120;
step S513, polishing the welding position of the stainless steel plate.
According to the method, the stainless steel plate is fixed on the convex spherical surface of the upper spherical hinge 100 through the steps of punch 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 requirements can be met, large-scale machining equipment is not needed for finish machining of the convex spherical surface of the upper spherical hinge 100, and the machining difficulty is greatly reduced.
In this embodiment, the second protection plate 210 is an ultra-high molecular weight polyethylene plate, and the installation steps of the ultra-high molecular weight polyethylene plate are as follows:
step S521, manufacturing the ultra-high molecular weight polyethylene plate into the shape of a concave spherical surface of the lower spherical hinge 200, and forming countersunk screw holes in the ultra-high molecular weight polyethylene plate at positions corresponding to the second annular steel belt 220 pre-embedded in the concave spherical surface of the lower spherical hinge 200;
step S522, the ultra-high molecular weight polyethylene plate is attached to the concave spherical surface of the upper spherical hinge 100, and the countersunk screws 230 are screwed into the countersunk screw holes, so that the ultra-high molecular weight polyethylene plate is fixed on the second annular steel band 220 through 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 screws 230, and the installation is convenient and rapid.
To sum up, the last spherical hinge 100 and lower spherical hinge 200 of the prefabricated swivel spherical hinge of super high strength concrete of this application all adopt reinforced concrete prefabricated component, during the manufacturing, go up spherical hinge 100 and lower spherical hinge 200 and directly through the prefabricated mould prefabricated production, go up spherical hinge 100 and lower spherical hinge 200 prefabricated shaping back, the convex sphere of ball hinge 100 again respectively last and the concave sphere installation protection shield of ball hinge 200 down form the friction pair can, only need drop into prefabricated mould earlier stage, only need drop into reinforced concrete material later stage, great reduction in cost, go up spherical hinge 100 and lower spherical hinge 200 and all adopt the direct prefabricated shaping of reinforced concrete, do not need to make the steel casing, also need not use large-scale machine tooling equipment to carry out the finish machining to the sphere, greatly reduced the processing degree of difficulty, production cycle has been shortened.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (10)
1. The utility model provides a super high strength concrete prefabrication ball pivot of turning, includes ball pivot, lower ball pivot and pivot, the lower terminal surface of going up the ball pivot is provided with convex spherical surface, the up end of ball pivot is equipped with concave spherical surface down, go up the convex spherical surface adaptation of ball pivot downside in the concave spherical surface of ball pivot upside down, the axle hole has all been reserved in the axle center of going up ball pivot and ball pivot down, the both ends of pivot rotate respectively in the axle hole of adaptation on last ball pivot and ball pivot down, its characterized in that:
the upper spherical hinge and the lower spherical hinge are both 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 rotation friction pair.
2. The ultra-high strength concrete prefabricated swivel ball hinge of claim 1, characterized in that: a plurality of circles of first annular steel belts which are concentrically arranged are pre-buried in the convex spherical surface on 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 pre-buried in the concave spherical surface on the upper side of the lower spherical hinge, and the second protection plate is fixed on the second annular steel belts.
3. The ultra-high strength concrete prefabricated swivel ball hinge of claim 2, characterized in that: the first protection plate is made of a stainless steel plate, the stainless steel plate is fixed to the outside of the first annular steel band in a welded mode, the second protection plate is made of an ultra-high molecular weight polyethylene plate, countersunk head screw holes are formed in the ultra-high molecular weight polyethylene plate, and the ultra-high molecular weight polyethylene plate is fixed to the outside of the second annular steel band through countersunk head screws screwed into the countersunk head screw holes.
4. The ultra-high strength concrete prefabricated swivel ball hinge of claim 1, characterized in that: the upper spherical hinge and the lower spherical hinge form the shaft hole respectively by embedding sleeves in the shaft center.
5. A prefabricated mold for an ultra-high-strength concrete prefabricated swivel ball hinge according to any one of claims 1 to 4, wherein: including last prefabricated mould of spherical hinge and the prefabricated mould of lower spherical hinge, go up the prefabricated mould of spherical hinge include spherical hinge die block and fixed mounting in go up last spherical hinge side ring mould on the spherical hinge die block, the top surface of going up the spherical hinge die block is provided with concave spherical surface, the prefabricated mould of spherical hinge includes spherical hinge die block and fixed mounting down in lower spherical hinge side ring mould on the spherical hinge die block down, the top surface of spherical hinge die block is provided with protruding sphere down.
6. The prefabricated mould of prefabricated swivel ball hinge of ultra-high strength concrete of claim 5, characterized in that: the prefabricated mould is provided with a plurality of upper spherical hinge side ring moulds and lower spherical hinge side ring moulds with different diameters, the upper spherical hinge side ring moulds with different diameters can be respectively fixed on the upper spherical hinge bottom mould through bolts, and the lower spherical hinge side ring moulds with different diameters can be respectively fixed on the lower spherical hinge bottom mould through bolts.
7. The prefabricated mould of prefabricated swivel ball hinge of ultra-high strength concrete of claim 6, 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.
8. A preparation method of a super-high-strength concrete prefabricated swivel spherical hinge is characterized by comprising the following steps: the preparation method adopts the prefabricated mould as claimed in claim 5, and comprises the following steps:
step S10, assembling an upper spherical hinge prefabricated mould and a lower spherical hinge prefabricated mould;
step S20, binding the reinforcing mesh, and respectively loading the reinforcing mesh of the upper spherical hinge into an upper spherical hinge prefabricated mold, and loading the reinforcing mesh of the lower spherical hinge into a lower spherical hinge prefabricated mold;
step S30, respectively installing sleeves in the centers of the upper spherical hinge prefabricated mould and the lower spherical hinge prefabricated mould;
step S40, respectively pouring high-performance concrete into the upper spherical hinge prefabricated mould and the lower spherical hinge prefabricated mould;
step S50, demolding and maintaining;
and step S60, mounting a first protection plate on the convex spherical surface of the upper spherical hinge which is prefabricated and formed, and mounting a second protection plate on the concave spherical surface of the lower spherical hinge which is prefabricated and formed.
9. The method for preparing the ultra-high strength concrete prefabricated swivel ball hinge according to claim 8, 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, stamping the stainless steel plate into the shape of a convex spherical surface of the upper spherical hinge, and punching holes at positions of the stamped stainless steel plate corresponding to the positions of the pre-embedded first annular steel bands of the convex spherical surface of the upper spherical hinge;
step S512, attaching a stainless steel plate to the convex spherical surface of the upper spherical hinge, and welding the hole position of the stainless steel plate on the first annular steel belt;
step S513, polishing the welding position of the stainless steel plate.
10. The method for preparing the ultra-high strength concrete prefabricated swivel ball hinge according to claim 8, characterized in that: the second protection plate is an ultra-high molecular weight polyethylene plate, and the ultra-high molecular weight polyethylene plate is installed by the following steps:
step S521, manufacturing the ultra-high molecular weight polyethylene plate into the shape of a concave spherical surface of the lower spherical hinge, and arranging a countersunk head screw hole at a position, corresponding to the second annular steel belt pre-embedded in the concave spherical surface of the lower spherical hinge, on the ultra-high molecular weight polyethylene plate;
step S522, the ultra-high molecular weight polyethylene plate is attached to the concave spherical surface of the upper spherical hinge, and countersunk screws are screwed into the countersunk screw holes, so that the ultra-high molecular weight polyethylene plate is fixed on the second annular steel band by the countersunk screws.
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