CN116442376A - Centrifugal forming method for precast reinforced concrete pipe pile - Google Patents
Centrifugal forming method for precast reinforced concrete pipe pile Download PDFInfo
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- CN116442376A CN116442376A CN202310291005.3A CN202310291005A CN116442376A CN 116442376 A CN116442376 A CN 116442376A CN 202310291005 A CN202310291005 A CN 202310291005A CN 116442376 A CN116442376 A CN 116442376A
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- pipe pile
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- tubular pile
- centrifugal
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000004567 concrete Substances 0.000 claims abstract description 55
- 238000013016 damping Methods 0.000 claims abstract description 38
- 238000000465 moulding Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 38
- 238000002347 injection Methods 0.000 claims description 22
- 239000007924 injection Substances 0.000 claims description 22
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 238000005119 centrifugation Methods 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000005336 cracking Methods 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 239000011178 precast concrete Substances 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000035939 shock Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/68—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts and applying centrifugal forces
-
- 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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
-
- 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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/76—Moulds
- B28B21/80—Moulds adapted to centrifugal or rotational moulding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention discloses a centrifugal forming method of a precast reinforced concrete pipe pile, which relates to the technical field of concrete pipe pile processing and comprises a supporting seat, a pipe pile precast die and transmission teeth, wherein an outer frame is fixed on the outer side of the upper part of the supporting seat, a bearing assembly is arranged on the middle lower part of the inner side of the outer frame, the pipe pile precast die is arranged above the bearing assembly, a convex ring is fixed on the outer part of the pipe pile precast die at equal distance, and the transmission teeth are arranged on the outer side of the convex ring and comprise a gear ring, a sleeve, a locking bolt and a rubber gasket. According to the centrifugal molding method for the precast reinforced concrete pipe pile, the centrifugal driving assembly is matched with the transmission teeth to facilitate centrifugal operation on the precast pipe pile mold, meanwhile, the bearing assembly can bear and limit the precast pipe pile mold, the side limit assembly, the upper limit assembly and the damping assembly can fully limit and prevent deflection on the precast pipe pile mold, buffering and damping can be further carried out, and therefore stability of the precast concrete pipe pile in the centrifugal process is improved.
Description
Technical Field
The invention relates to the technical field of concrete pipe pile processing, in particular to a centrifugal forming method of a prefabricated reinforced concrete pipe pile.
Background
The prefabricated reinforced concrete pipe pile is produced into hollow cylinder type concrete prefabricated part through pre-tensioned pre-stress centrifugal forming process and steam curing at about 180 deg.c and 10 atm (1.0 MPa). In the process of prefabricating reinforced concrete pipe piles, a centrifugal forming method is generally used.
The invention of the application number CN202011217397.1 discloses a centrifugal forming method of a precast reinforced concrete pipe pile, which is similar to the concrete pipe pile of the application, and has the following defects: in the centrifugal process of the concrete pipe pile, the concrete materials are tightly attached to the outer edge of the pipe pile under the influence of centrifugal force, so that the concrete materials on the inner side of the pipe pile are insufficient, and finally the problem of poor forming parts is caused.
Accordingly, in view of the above, research and improvement on the existing structure and defects have been made, and a method for centrifugally forming a precast reinforced concrete pipe pile has been proposed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a centrifugal forming method of a precast reinforced concrete pipe pile, which solves the problems in the prior art.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a precast reinforced concrete tubular pile centrifugal forming device, includes supporting seat, tubular pile prefabricated mould and drive tooth, the top outside of supporting seat is fixed with the frame, and the below is installed in the inboard of frame bears the subassembly, tubular pile prefabricated mould sets up in the top of bearing the subassembly, and the outside equidistance of tubular pile prefabricated mould is fixed with the bulge loop, the drive tooth sets up in the outside of bulge loop, and the drive tooth includes gear ring, sleeve, locking bolt and rubber packing ring, telescopic both sides are fixed with the gear ring, and telescopic middle part runs through there is the locking bolt, the inboard bonding of sleeve and gear ring has the rubber packing ring, centrifugal drive subassembly is installed to the middle part top of supporting seat, and centrifugal drive subassembly includes support framed plate, rotation axis and driving gear, the rotation of the inboard of support framed plate is installed the rotation axis, and the outside of rotation axis is fixed with the driving gear, the driving gear is connected with the gear ring meshing, the front and back side outside of tubular pile prefabricated mould is fixed with the steel sheet through the bolt, and annotates the material subassembly is installed to outside one side of steel sheet.
Further, bear the weight of the subassembly and include hydraulic telescoping rod, pivot and accepting the roller, the top of hydraulic telescoping rod is installed the accepting the roller through the pivot rotation, and accepting the roller and be provided with two sets of with respect to the vertical central line symmetry of tubular pile prefabricated mould.
Further, the side limit assembly is installed to the upper middle-upper inboard of frame, and side limit assembly includes curb plate, first telescopic link, installing frame and spacing roller, the curb plate is bolted connection with the frame, and the inboard of curb plate installs first telescopic link, the top of first telescopic link is fixed with the installing frame, and the installing frame is the arciform structure, the inside rotation of installing frame installs spacing roller.
Further, limit subassembly on the limit is installed to the middle part below of frame, and limit subassembly on the limit includes second telescopic link, U type frame, fixed axle, movable axle sleeve and spacing runner, the top of second telescopic link is fixed with U type frame, and the inboard of U type frame is fixed with the fixed axle, the outside of fixed axle is rotated through movable axle sleeve and is installed spacing runner.
Further, limit subassembly still includes third telescopic link and spacing outer loop on, the third telescopic link is installed to the front and back both sides below of frame, and the below of third telescopic link is fixed with spacing outer loop, spacing outer loop is located the outside of tubular pile prefabricated mould, and tubular pile prefabricated mould passes through the bearing and rotates with spacing outer loop and be connected.
Further, damping module is installed to one side of fixed axle, and damping module includes fixed connecting rod, damping spring, rubber gasbag, fixed frame and connecting plate, fixed frame is installed through the connecting plate to one side below of U shaped frame, fixed connecting rod and fixed axle fixed connection, and fixed connecting rod's top is fixed with damping spring, damping spring's top is fixed with rubber gasbag, and damping spring, rubber gasbag all are located the inside of fixed frame.
Further, centrifugal drive assembly still includes driving motor, motor shaft and drive belt, driving motor is installed to top one side of supporting seat, and driving motor's middle part is provided with the motor shaft to the outside cover between motor shaft and the rotation axis is equipped with the drive belt.
Further, annotate the material subassembly and include annotate charging tray, rotary joint, takeover and annotate the material mouth, annotate the outside intermediate junction of charging tray and be connected with rotary joint, and rotary joint's outside is connected with the takeover, annotate one side that the charging tray is close to tubular pile prefabricated mould and install annotate the material mouth, and annotate the inside that the material mouth is embedded to be fixed in the steel sheet to annotate the material mouth and be provided with six groups.
Further, the centrifugal forming method of the precast reinforced concrete pipe pile comprises the following specific steps:
step one, binding and molding: binding a reinforcing steel bar frame according to the specification of the prefabricated reinforced concrete pipe pile, wherein the reinforcing steel bar frame comprises a plurality of longitudinal reinforcing steel bars and a plurality of transverse stirrups, so that the longitudinal reinforcing steel bars are uniformly distributed circumferentially, and meanwhile, the transverse stirrups are arranged at intervals along the length direction of the pipe pile and are bound and connected at the joint of the intersection of each longitudinal reinforcing steel bar and each transverse stirrup;
step two, concrete pouring: then, the steel bar frame is sent into the interior of the tubular pile prefabricated mould so as to be fixed with the pipe wall of the tubular pile prefabricated mould, and then a certain amount of concrete is poured into the interior of the tubular pile prefabricated mould through a pouring truck, and after pouring is completed, the two ends of the tubular pile prefabricated mould are externally sealed and covered with steel plates and locked and fixed through bolts;
step three, centrifugal limiting: the tubular pile pre-molding is arranged on the upper side of the receiving roller of the bearing assembly, so that the bearing assembly bears and limits the tubular pile pre-molding, and meanwhile, the tubular pile pre-molding is fully limited and prevented from deflection through the side limit assembly, the upper limit assembly and the damping assembly;
step four, centrifugal molding: the rotation of the rotation shaft and the driving gear drives the rotation of the transmission gear, so that the rotation of the tubular pile prefabricated die inside the transmission gear is driven, and the concrete tubular pile in the tubular pile prefabricated die is centrifugally molded.
Further, the centrifugal forming method of the precast reinforced concrete pipe pile further comprises the following specific steps:
step five, centrifugally injecting: the concrete pouring equipment which is externally connected with the pipe pile is used for pouring concrete slurry into the pouring tray through the external connecting pipe and the rotary joint, so that the material is poured into the pipe pile prefabricated mould through six evenly distributed pouring nozzles, the material in the pipe pile prefabricated mould is sufficient, and the concrete is compacted in four stages of slow speed, low speed, medium speed and high speed during the centrifugation;
step six, autoclaved curing: taking out the tubular pile in the tubular pile prefabricated die after centrifugation, putting the tubular pile into an autoclaved pool, autoclaved curing the tubular pile, stopping the tubular pile for 1 to 1.5 hours at first to avoid loose cracking of the concrete surface caused by direct temperature rise, slowly heating the tubular pile at a heating rate of 20 to 30 ℃/h, autoclaved curing the tubular pile at a constant temperature of 60 to 85 ℃ for 4 to 5 hours, and finally cooling the tubular pile to finish the autoclaved curing process.
The invention provides a centrifugal forming method of a precast reinforced concrete pipe pile, which has the following beneficial effects:
according to the centrifugal molding method for the precast reinforced concrete pipe pile, the centrifugal driving assembly is matched with the transmission teeth to facilitate centrifugal operation on the precast pipe pile mold, meanwhile, the bearing assembly can bear and limit the precast pipe pile mold, the side limit assembly, the upper limit assembly and the damping assembly can fully limit and prevent deflection on the precast pipe pile mold, buffering and damping can be further carried out, and therefore stability of the precast concrete pipe pile in the centrifugal process is improved.
1. This precast reinforced concrete tubular pile centrifugal forming device is provided with the drive tooth, and outside gear ring, sleeve can overlap the bulge loop of locating the tubular pile prefabricated mould, can make the gap laminating between sleeve and the bulge loop through the quantity of adjusting annular rubber packing ring, runs through the sleeve through the locking bolt and is convenient for fix sleeve and bulge loop to realize the equipment between drive tooth and the tubular pile prefabricated mould, the drive tooth can cooperate centrifugal drive subassembly, so that follow-up tubular pile prefabricated mould's centrifugal operation.
2. This precast reinforced concrete tubular pile centrifugal forming device is provided with centrifugal drive subassembly, is convenient for drive the rotation of motor shaft through driving motor for the motor shaft can drive the rotation of rotation axis through the drive belt, and then makes the outside driving gear synchronous rotation of rotation axis, because driving gear is connected with the gear ring meshing, consequently can drive the rotation of gear ring, makes the inside tubular pile prefabricated mould of gear ring can centrifugal rotation, thereby promotes its inside concrete tubular pile centrifugal forming.
3. This precast reinforced concrete tubular pile centrifugal forming device is provided with bears the subassembly, is convenient for flexible adjustment top through the hydraulic telescoping rod and accepts the position of roller, is applicable to the tubular pile prefabricated mould of difference for two sets of accepting the roller and can bear the tubular pile prefabricated mould, and two sets of accepting the roller and can carry out spacingly to the both sides of tubular pile prefabricated mould simultaneously, prevent that tubular pile prefabricated mould centrifugation in-process position variation, accepting the roller and can rotate through the pivot and make accepting the roller and can cooperate the tubular pile to preform the centrifugal rotation of mould, it is comparatively convenient to use.
4. This precast reinforced concrete tubular pile centrifugation forming device is provided with limit subassembly and damper on, be convenient for go up and down the position of adjustment U shaped frame through the second telescopic link, spacing runner rotates through movable shaft sleeve and fixed axle and is connected and make spacing runner can rotate spacingly on the outside upside of tubular pile precast mould, spacing runner rotation in-process receives vibrations to influence and conducts vibrations to the fixed axle, fixed connecting rod top of fixed axle one side is provided with damping spring, make this damping spring can cushion the shock attenuation, and damping spring can conduct vibrations force to the further shock attenuation of rubber gasbag, and then promote the stability of concrete tubular pile centrifugation in-process, and fixed frame can be spacing its inside damping spring, thereby restrain damping spring and shake in reverse.
5. The centrifugal forming device for the precast reinforced concrete pipe pile is provided with a side limit assembly and an upper limit assembly, the positions of an installation frame and a limit roller shaft are convenient to be adjusted in a telescopic manner through a first telescopic rod, the limit roller shaft can rotate and limit the side edge of a pipe pile precast mould, the position of a limit outer ring is convenient to be adjusted in a telescopic manner through a third telescopic rod, the limit outer ring can be positioned outside the pipe pile precast mould, further limit is carried out on the pipe pile precast mould, deflection of the pipe pile precast mould is avoided, the pipe pile precast mould and the pipe pile precast mould can be matched with centrifugal rotation of the pipe pile precast mould through bearing connection,
6. this precast reinforced concrete tubular pile centrifugal forming device is provided with composite component, the outside of takeover can external concrete pouring equipment, through the offline rotation of rotary joint can the prefabricated mould of rotary fit tubular pile, be convenient for pour into concrete slurry into the inside of annotating the charging tray through takeover and rotary joint outward to annotate the material to the inside of the prefabricated mould of tubular pile through six evenly distributed's notes material mouth, make the inside material of the prefabricated mould of tubular pile abundant, avoid the concrete material to receive the centrifugal force to influence tight laminating in tubular pile outward flange in the centrifugal preparation in-process and cause the inboard concrete material of tubular pile not enough problem that finally leads to the shaping not good.
Drawings
FIG. 1 is a schematic diagram showing the external structure of a centrifugal forming device for precast reinforced concrete pipe piles in front view;
FIG. 2 is a schematic diagram showing the semi-sectional structure of a transmission gear of a centrifugal molding device for precast reinforced concrete pipe piles;
FIG. 3 is a schematic enlarged sectional view of a shock absorbing assembly of a centrifugal forming device for precast reinforced concrete pipe piles according to the present invention;
FIG. 4 is a schematic diagram showing the external side view structure of a centrifugal forming device for precast reinforced concrete tubular piles according to the present invention;
FIG. 5 is a schematic perspective view of a driving tooth of a centrifugal molding device for precast reinforced concrete pipe piles;
FIG. 6 is a schematic diagram showing a side view of a material injection assembly of a precast reinforced concrete tubular pile centrifugal forming device according to the present invention;
fig. 7 is a schematic diagram of a distribution structure of material injection nozzles of a centrifugal forming device for precast reinforced concrete tubular piles.
In the figure: 1. a support base; 2. an outer frame; 3. a carrier assembly; 301. a hydraulic telescopic rod; 302. a rotating shaft; 303. a receiving roller; 4. tubular pile prefabricated mould; 5. a convex ring; 6. a side limit assembly; 601. a side plate; 602. a first telescopic rod; 603. a mounting frame; 604. limiting roll shafts; 7. an upper limit assembly; 701. a second telescopic rod; 702. a U-shaped frame; 703. a fixed shaft; 704. a movable shaft sleeve; 705. a limit rotating wheel; 706. a third telescopic rod; 707. a limiting outer ring; 8. a shock absorbing assembly; 801. a fixed connecting rod; 802. a damping spring; 803. a rubber air bag; 804. fixing a frame; 805. a connecting plate; 9. a drive tooth; 901. a gear ring; 902. a sleeve; 903. a locking bolt; 904. a rubber gasket; 10. a centrifugal drive assembly; 1001. a support frame plate; 1002. a rotation shaft; 1003. a drive gear; 1004. a driving motor; 1005. a motor shaft; 1006. a transmission belt; 11. a steel plate; 12. a material injection assembly; 1201. a material injection disc; 1202. a rotary joint; 1203. an outer connecting pipe; 1204. and a material injection nozzle.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
Referring to fig. 1 to 7, the present invention provides the following technical solutions: the utility model provides a prefabricated reinforced concrete pipe pile centrifugal forming device, including supporting seat 1, tubular pile prefabricated mould 4 and driving tooth 9, the top outside of supporting seat 1 is fixed with frame 2, and install bearing assembly 3 below in the inboard of frame 2, tubular pile prefabricated mould 4 sets up in bearing assembly 3's top, and the outside equidistance of tubular pile prefabricated mould 4 is fixed with bulge loop 5, driving tooth 9 sets up in bulge loop 5's outside, and driving tooth 9 includes gear ring 901, sleeve 902, locking bolt 903 and rubber washer 904, the both sides of sleeve 902 are fixed with gear ring 901, and the middle part of sleeve 902 runs through there is locking bolt 903, sleeve 902 and the inboard of gear ring 901 bond has rubber washer 904, centrifugal drive assembly 10 is installed to the middle part top of supporting seat 1, and centrifugal drive assembly 10 includes supporting frame plate 1001, rotation axis 1002 and driving gear 1003, rotation installation rotation axis 1002 is installed to the inboard of supporting plate 1001, and the outside of rotation axis 1002 is fixed with the driving gear 1003, driving gear 1003 is meshed with gear ring 901 and is connected, the outside of the front and back side of prefabricated 4 is fixed with gear ring 901 through fixing the locking bolt 903, and the outside of steel plate 11 is installed with the outside of steel plate 11 and the outside is installed with the material 12 of steel plate injection molding assembly;
the gear ring 901 and the sleeve 902 can be sleeved outside the convex ring 5 of the tubular pile pre-molding 4, gaps between the sleeve 902 and the convex ring 5 can be attached by adjusting the number of the annular rubber gaskets 904, the sleeve 902 and the convex ring 5 can be fixed conveniently by penetrating the sleeve 902 through the locking bolt 903, accordingly, assembly between the transmission teeth 9 and the tubular pile pre-molding 4 is achieved, and the transmission teeth 9 can be matched with the centrifugal driving assembly 10 to facilitate centrifugal operation of the subsequent tubular pile pre-molding 4.
Referring to fig. 1, the bearing assembly 3 includes a hydraulic telescopic rod 301, a rotating shaft 302 and a receiving roller 303, the receiving roller 303 is rotatably mounted on the top end of the hydraulic telescopic rod 301 through the rotating shaft 302, and the receiving roller 303 is symmetrically provided with two groups about the vertical center line of the pipe pile pre-forming die 4;
the concrete operation is as follows, be convenient for stretch out and draw back the position of adjustment top uptake roller 303 through hydraulic telescoping rod 301, be applicable to the tubular pile prefabricated mould 4 of difference, make two sets of uptake roller 303 bear tubular pile prefabricated mould 4, two sets of uptake roller 303 can carry out spacing to tubular pile prefabricated mould 4's both sides simultaneously, prevent tubular pile prefabricated mould 4 centrifugation in-process position variation, uptake roller 303 can rotate through pivot 302 and make uptake roller 303 can cooperate tubular pile prefabricated mould 4's centrifugal rotation, it is comparatively convenient to use.
Referring to fig. 1, a side limit assembly 6 is mounted on the inner side of the middle upper part of the outer frame 2, and the side limit assembly 6 includes a side plate 601, a first telescopic rod 602, a mounting frame 603 and a limit roller 604, the side plate 601 is connected with the outer frame 2 by bolts, the first telescopic rod 602 is mounted on the inner side of the side plate 601, the mounting frame 603 is fixed on the top end of the first telescopic rod 602, the mounting frame 603 is in an arc-shaped structure, and the limit roller 604 is rotatably mounted in the mounting frame 603;
the concrete operation is as follows, the positions of the mounting frame 603 and the limiting roller shaft 604 are conveniently adjusted in a telescopic manner through the first telescopic rod 602, so that the limiting roller shaft 604 can rotate and limit the side edge of the tubular pile prefabricated die 4.
Referring to fig. 1 and 4, an upper limit component 7 is installed below the middle part of the outer frame 2, and the upper limit component 7 includes a second telescopic rod 701, a U-shaped frame 702, a fixed shaft 703, a movable shaft sleeve 704 and a limit rotating wheel 705, wherein the top end of the second telescopic rod 701 is fixed with the U-shaped frame 702, the inner side of the U-shaped frame 702 is fixed with the fixed shaft 703, and the limit rotating wheel 705 is rotatably installed outside the fixed shaft 703 through the movable shaft sleeve 704; the upper limit limiting assembly 7 further comprises a third telescopic rod 706 and a limit outer ring 707, the third telescopic rod 706 is installed below the front side and the rear side of the outer frame 2, the limit outer ring 707 is fixed below the third telescopic rod 706, the limit outer ring 707 is positioned outside the tubular pile prefabricated die 4, and the tubular pile prefabricated die 4 is rotationally connected with the limit outer ring 707 through a bearing;
the concrete operation is as follows, be convenient for go up and down the position of adjustment U type frame 702 through the second telescopic link 701, spacing runner 705 rotates with fixed axle 703 through movable shaft sleeve 704 and is connected and makes spacing runner 705 can rotate spacing on the outside upside of tubular pile prefabricated mould 4, the position of spacing outer loop 707 of the flexible adjustment of being convenient for through third telescopic link 706 makes spacing outer loop 707 can be located the outside of tubular pile prefabricated mould 4, and then carries out further spacing to tubular pile prefabricated mould 4, avoid tubular pile prefabricated mould 4 to appear the skew, and both pass through the bearing connection and can cooperate the centrifugal rotation of tubular pile prefabricated mould 4.
Referring to fig. 3, a damper assembly 8 is installed on one side of a fixed shaft 703, the damper assembly 8 includes a fixed link 801, a damper spring 802, a rubber airbag 803, a fixed frame 804 and a connecting plate 805, the fixed frame 804 is installed below one side of the u-shaped frame 702 through the connecting plate 805, the fixed link 801 is fixedly connected with the fixed shaft 703, the damper spring 802 is fixed above the fixed link 801, the rubber airbag 803 is fixed above the damper spring 802, and the damper spring 802 and the rubber airbag 803 are both located inside the fixed frame 804;
the concrete operation is as follows, the limiting runner 705 is influenced by vibrations in the rotation process and transmits vibrations to the fixed shaft 703, the damping spring 802 is arranged above the fixed connecting rod 801 on one side of the fixed shaft 703, so that the damping spring 802 can buffer and damp, the damping spring 802 can transmit vibration force to the rubber air bag 803 for further damping, and further stability in the concrete pipe pile centrifugation process is improved, and the fixed frame 804 can limit the damping spring 802 in the fixed frame, so that the damping spring 802 is restrained from reversely vibrating.
Referring to fig. 2 and 4, the centrifugal driving assembly 10 further includes a driving motor 1004, a motor shaft 1005 and a driving belt 1006, wherein the driving motor 1004 is installed on one side above the supporting seat 1, the motor shaft 1005 is arranged in the middle of the driving motor 1004, and the driving belt 1006 is sleeved on the outer side between the motor shaft 1005 and the rotating shaft 1002;
the concrete operation is as follows, the motor shaft 1005 is convenient to drive through driving motor 1004 to rotate for the motor shaft 1005 can drive the rotation of rotation axis 1002 through the drive belt 1006, and then makes the outside driving gear 1003 of rotation axis 1002 synchronous rotation, because driving gear 1003 and gear ring 901 meshing are connected, consequently can drive the rotation of gear ring 901, the inside tubular pile prefabricated mould 4 of gear ring 901 can centrifugal rotation, thereby promotes its inside concrete tubular pile centrifugal molding.
Referring to fig. 6, the injection assembly 12 includes an injection tray 1201, a rotary joint 1202, an external connection pipe 1203 and an injection nozzle 1204, the rotary joint 1202 is connected to the middle of the outside of the injection tray 1201, the external connection pipe 1203 is connected to the outside of the rotary joint 1202, the injection nozzle 1204 is mounted on one side of the injection tray 1201 close to the pipe pile pre-forming die 4, the injection nozzle 1204 is embedded and fixed in the steel plate 11, and the injection nozzle 1204 is provided with six groups;
the concrete operation is as follows, the outside of external pipe 1203 can external concrete pouring equipment, can rotate the offline rotation of cooperation tubular pile prefabricated mould 4 through rotary joint 1202, be convenient for pour into concrete slurry into the inside of annotating charging tray 1201 through external pipe 1203 and rotary joint 1202, thereby annotate the material to the inside of tubular pile prefabricated mould 4 through six evenly distributed's notes material mouth 1204, make the inside material of tubular pile prefabricated mould 4 sufficient, avoid the concrete material to receive the centrifugal force influence in the centrifugal preparation process and closely laminate in the tubular pile outward flange and cause the inboard concrete material of tubular pile not enough problem of finally leading to the shaping piece not good.
The centrifugal forming method of the precast reinforced concrete pipe pile comprises the following specific steps:
step one, binding and molding: binding a reinforcing steel bar frame according to the specification of the prefabricated reinforced concrete pipe pile, wherein the reinforcing steel bar frame comprises a plurality of longitudinal reinforcing steel bars and a plurality of transverse stirrups, so that the longitudinal reinforcing steel bars are uniformly distributed circumferentially, and meanwhile, the transverse stirrups are arranged at intervals along the length direction of the pipe pile and are bound and connected at the joint of the intersection of each longitudinal reinforcing steel bar and each transverse stirrup;
step two, concrete pouring: then, the steel bar framework is sent into the tubular pile prefabricated die 4 to be fixed with the pipe wall of the tubular pile prefabricated die 4, and then a certain amount of concrete is poured into the tubular pile prefabricated die 4 through a pouring truck, and after pouring is completed, the two ends of the tubular pile prefabricated die 4 are externally sealed and covered with steel plates 11 and locked and fixed through bolts;
step three, centrifugal limiting: the pipe pile pre-cast die 4 is arranged on the upper side of the receiving roller 303 of the bearing assembly 3, so that the bearing assembly 3 bears and limits the pipe pile pre-cast die 4, and meanwhile, the pipe pile pre-cast die 4 is fully limited and prevented from deflection through the side limit assembly 6, the upper limit assembly 7 and the damping assembly 8;
step four, centrifugal molding: the rotation of the rotation shaft 1002 and the driving gear 1003 drives the rotation of the transmission teeth 9, so that the rotation of the pipe pile prefabricated die 4 inside the transmission teeth 9 is driven, and the concrete pipe pile in the pipe pile prefabricated die 4 is centrifugally molded;
step five, centrifugally injecting: the concrete pouring equipment which is externally connected with the pipe pile pre-casting die 4 is centrifuged and simultaneously injects concrete slurry into the pouring tray 1201 through the external pipe 1203 and the rotary joint 1202, so that the material in the pipe pile pre-casting die 4 is fully filled through six evenly distributed pouring nozzles 1204, and the concrete is ensured to be compact by four stages of slow speed, low speed, medium speed and high speed during centrifugation;
step six, autoclaved curing: taking out the tubular pile in the tubular pile prefabricated die 4 after centrifugation, putting the tubular pile into an autoclaved pool, autoclaved curing the tubular pile, stopping the tubular pile for 1 to 1.5 hours at first to avoid loose cracking of the concrete surface caused by direct temperature rise, slowly heating the tubular pile at a heating rate of 20 to 30 ℃/h, autoclaved curing the tubular pile at a constant temperature of 60 to 85 ℃ for 4 to 5 hours, and finally cooling the tubular pile to finish the autoclaved curing process.
In summary, when the centrifugal molding method for the precast reinforced concrete pipe pile is used, firstly, a reinforcing steel bar frame can be bound according to the specification of the precast reinforced concrete pipe pile, and the reinforcing steel bar frame comprises a plurality of longitudinal reinforcing steel bars and a plurality of transverse stirrups, so that the longitudinal reinforcing steel bars are uniformly distributed circumferentially, and meanwhile, the transverse stirrups are arranged at intervals along the length direction of the pipe pile and are bound and connected at the joint of the intersection of each longitudinal reinforcing steel bar and each transverse stirrup; then, the steel bar framework is sent into the tubular pile prefabricated die 4 to be fixed with the pipe wall of the tubular pile prefabricated die 4, and then a certain amount of concrete is poured into the tubular pile prefabricated die 4 through a pouring truck, and after pouring is completed, the two ends of the tubular pile prefabricated die 4 are externally sealed and covered with steel plates 11 and locked and fixed through bolts; then the gear ring 901 and the sleeve 902 are sleeved outside the convex ring 5 of the tubular pile pre-molding 4, gaps between the sleeve 902 and the convex ring 5 can be attached by adjusting the number of the annular rubber gaskets 904, and then the sleeve 902 and the convex ring 5 are fixed by penetrating the sleeve 902 through the locking bolts 903, so that the assembly between the transmission teeth 9 and the tubular pile pre-molding 4 is realized;
then the pipe pile pre-forming die 4 is arranged on the upper side of the bearing roller 303 of the bearing assembly 3, the position of the bearing roller 303 at the top end is adjusted through the telescopic adjustment of the hydraulic telescopic rod 301, so that two groups of bearing rollers 303 can bear the pipe pile pre-forming die 4, meanwhile, the two groups of bearing rollers 303 can limit the two sides of the pipe pile pre-forming die 4, position variation in the centrifuging process of the pipe pile pre-forming die 4 is prevented, and the bearing rollers 303 can rotate through the rotating shaft 302, so that the bearing rollers 303 can cooperate with the centrifuging rotation of the pipe pile pre-forming die 4;
meanwhile, the side limit assembly 6, the upper limit assembly 7 and the damping assembly 8 are used for fully limiting and preventing deflection of the pipe pile pre-cast die 4, the positions of the mounting frame 603 and the limit roller shaft 604 are telescopically adjusted through the first telescopic rod 602, the limit roller shaft 604 can rotationally limit the side edge of the pipe pile pre-cast die 4, the position of the U-shaped frame 702 is adjusted through the second telescopic rod 701 in a lifting mode, the limit rotating wheel 705 can rotationally limit the upper side of the outer side of the pipe pile pre-cast die 4, vibration is conducted to the fixed shaft 703 under the influence of vibration in the rotating process of the limit rotating wheel 705, the damping spring 802 is arranged above the fixed connecting rod 801 on one side of the fixed shaft 703, so that the damping spring 802 can buffer and damp, the damping spring 802 can conduct vibration force to the rubber air bag 803 for further damping, the stability in the concrete pipe pile pre-cast die centrifuging process is improved, the fixed frame 804 can limit the inner damping spring 802, the damping spring 802 is accordingly restrained from reversely vibrating, the position of the limit outer ring is telescopically adjusted through the third telescopic rod 706, the limit outer ring can be located outside the pipe pile pre-cast die 4, the pipe pile pre-cast die 4 is prevented from being eccentrically matched with the pipe pile pre-cast die 4, and the pipe pile pre-cast die 4 is prevented from being rotated by the pipe pile pre-cast die 4;
then, the motor shaft 1005 is driven to rotate by the driving motor 1004, so that the motor shaft 1005 can drive the rotation of the rotating shaft 1002 through the driving belt 1006, and then the driving gear 1003 outside the rotating shaft 1002 synchronously rotates, as the driving gear 1003 is meshed with the gear ring 901, the rotation of the gear ring 901 can be driven, the pipe pile pre-manufacturing die 4 inside the gear ring 901 can centrifugally rotate, thereby promoting the centrifugal forming of the concrete pipe pile inside the gear ring 901, the external concrete pouring equipment connected with the external side of the external pipe 1203 can rotationally cooperate with the off-line rotation of the pipe pile pre-manufacturing die 4 through the rotary joint 1202, and then concrete slurry is poured into the pipe pile pre-manufacturing die 1201 through the external pipe 1203 and the rotary joint 1202, so that the six evenly distributed pouring nozzles 1204 pour the concrete into the pipe pile pre-manufacturing die 4, so that the internal materials of the pipe pile pre-manufacturing die 4 are sufficient, and the pipe pile pre-manufacturing process is carried out according to four stages of slow speed, low speed, medium speed and high speed during centrifugation, so as to ensure the compactness of the concrete;
finally, demolding the tubular pile in the tubular pile prefabricated mould 4 after centrifugation, then taking out, putting the tubular pile into an autoclaved pool, autoclaved curing the tubular pile, firstly, standing for 1-1.5h, avoiding loose cracking of the concrete surface caused by direct heating, then slowly heating up at a heating rate of 20-30 ℃/h, autoclaved curing at a constant temperature of 60-85 ℃ for 4-5h, and finally, cooling to complete the autoclaved curing process, thus completing the use process of the whole precast reinforced concrete tubular pile centrifugal molding method.
The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. The utility model provides a precast reinforced concrete tubular pile centrifugal forming device, its characterized in that, including supporting seat (1), tubular pile prefabricated mould (4) and driving tooth (9), the top outside of supporting seat (1) is fixed with frame (2), and installs carrier assembly (3) below in the inboard of frame (2), tubular pile prefabricated mould (4) set up in the top of carrier assembly (3), and the outside equidistance of tubular pile prefabricated mould (4) is fixed with bulge loop (5), driving tooth (9) set up in the outside of bulge loop (5), and driving tooth (9) include gear ring (901), sleeve (902), locking bolt (903) and rubber packing ring (904), the both sides of sleeve (902) are fixed with gear ring (901), and the middle part of sleeve (902) runs through there is locking bolt (903), the inboard bonding of sleeve (902) and gear ring (901) has rubber packing ring (904), centrifugal drive assembly (10) are installed to the middle part top of supporting seat (1), and centrifugal drive assembly (10) include supporting plate (1001), and gear plate (1002) and rotation (1002) are fixed with rotation axis (1003) and rotation axis (1002) are fixed with in the rotation axis (1002), the driving gear (1003) is meshed with the gear ring (901), a steel plate (11) is fixed outside the front side and the rear side of the tubular pile prefabricated die (4) through bolts, and a material injection assembly (12) is arranged on one side of the outer portion of the steel plate (11).
2. The centrifugal forming device for precast reinforced concrete pipe piles according to claim 1, wherein the bearing assembly (3) comprises a hydraulic telescopic rod (301), a rotating shaft (302) and a receiving roller (303), the receiving roller (303) is rotatably installed on the top end of the hydraulic telescopic rod (301) through the rotating shaft (302), and the receiving roller (303) is symmetrically provided with two groups about the vertical center line of the pipe pile precast die (4).
3. The centrifugal forming device for the precast reinforced concrete pipe pile according to claim 1, wherein a side limit component (6) is installed on the upper inner side of the outer frame (2), the side limit component (6) comprises a side plate (601), a first telescopic rod (602), a mounting frame (603) and a limit roller shaft (604), the side plate (601) is in bolted connection with the outer frame (2), the first telescopic rod (602) is installed on the inner side of the side plate (601), a mounting frame (603) is fixed on the top end of the first telescopic rod (602), the mounting frame (603) is of an arc-shaped structure, and the limit roller shaft (604) is installed in the mounting frame (603) in a rotating mode.
4. The centrifugal forming device for the precast reinforced concrete tubular pile according to claim 1, wherein an upper limit component (7) is installed below the middle of the outer frame (2), the upper limit component (7) comprises a second telescopic rod (701), a U-shaped frame (702), a fixed shaft (703), a movable shaft sleeve (704) and a limit rotating wheel (705), the top end of the second telescopic rod (701) is fixed with the U-shaped frame (702), the inner side of the U-shaped frame (702) is fixed with the fixed shaft (703), and the outer part of the fixed shaft (703) is rotatably provided with the limit rotating wheel (705) through the movable shaft sleeve (704).
5. The centrifugal forming device for precast reinforced concrete pipe piles according to claim 4, wherein the upper limit limiting assembly (7) further comprises a third telescopic rod (706) and a limit outer ring (707), the third telescopic rod (706) is installed below the front side and the rear side of the outer frame (2), the limit outer ring (707) is fixed below the third telescopic rod (706), the limit outer ring (707) is located outside the pipe pile precast die (4), and the pipe pile precast die (4) is rotationally connected with the limit outer ring (707) through a bearing.
6. The centrifugal forming device for the precast reinforced concrete tubular pile according to claim 4, wherein a damping component (8) is installed on one side of the fixed shaft (703), the damping component (8) comprises a fixed connecting rod (801), a damping spring (802), a rubber air bag (803), a fixed frame (804) and a connecting plate (805), the fixed frame (804) is installed on one side lower portion of the U-shaped frame (702) through the connecting plate (805), the fixed connecting rod (801) is fixedly connected with the fixed shaft (703), the damping spring (802) is fixed on the upper portion of the fixed connecting rod (801), the rubber air bag (803) is fixed on the upper portion of the damping spring (802), and the damping spring (802) and the rubber air bag (803) are both located inside the fixed frame (804).
7. The centrifugal forming device for the precast reinforced concrete tubular pile according to claim 1, wherein the centrifugal driving assembly (10) further comprises a driving motor (1004), a motor shaft (1005) and a transmission belt (1006), the driving motor (1004) is installed on one side above the supporting seat (1), the motor shaft (1005) is arranged in the middle of the driving motor (1004), and the transmission belt (1006) is sleeved on the outer side between the motor shaft (1005) and the rotating shaft (1002).
8. The precast reinforced concrete tubular pile centrifugal forming device according to claim 1, wherein the material injection assembly (12) comprises a material injection disc (1201), a rotary joint (1202), an external connection pipe (1203) and a material injection nozzle (1204), the rotary joint (1202) is connected in the middle of the outer part of the material injection disc (1201), the external connection pipe (1203) is connected to the outer side of the rotary joint (1202), the material injection nozzle (1204) is installed on one side, close to the tubular pile precast mould (4), of the material injection disc (1201), the material injection nozzle (1204) is embedded and fixed in the inner part of the steel plate (11), and the material injection nozzle (1204) is provided with six groups.
9. A method for forming a precast reinforced concrete pipe pile centrifugal forming device according to any one of claims 1 to 8, wherein the precast reinforced concrete pipe pile centrifugal forming method comprises the following specific steps:
step one, binding and molding: binding a reinforcing steel bar frame according to the specification of the prefabricated reinforced concrete pipe pile, wherein the reinforcing steel bar frame comprises a plurality of longitudinal reinforcing steel bars and a plurality of transverse stirrups, so that the longitudinal reinforcing steel bars are uniformly distributed circumferentially, and meanwhile, the transverse stirrups are arranged at intervals along the length direction of the pipe pile and are bound and connected at the joint of the intersection of each longitudinal reinforcing steel bar and each transverse stirrup;
step two, concrete pouring: then, the steel bar framework is sent into the pipe pile prefabricated die (4) to be fixed with the pipe wall of the pipe pile prefabricated die (4), then a certain amount of concrete is poured into the pipe pile prefabricated die (4) through a pouring truck, and after pouring is completed, the two ends of the pipe pile prefabricated die (4) are externally sealed and covered with steel plates (11) and locked and fixed through bolts;
step three, centrifugal limiting: the tubular pile pre-cast die (4) is arranged on the upper side of a receiving roller (303) of the bearing assembly (3), so that the bearing assembly (3) bears and limits the tubular pile pre-cast die (4), and meanwhile, the tubular pile pre-cast die (4) is fully limited and prevented from deflection through the side limit assembly (6), the upper limit assembly (7) and the damping assembly (8);
step four, centrifugal molding: the rotation of the rotation shaft (1002) and the driving gear (1003) drive the rotation of the transmission gear (9), so that the rotation of the pipe pile prefabricated die (4) inside the transmission gear (9) is driven, and the concrete pipe pile in the pipe pile prefabricated die (4) is centrifugally molded.
10. The method for forming the precast reinforced concrete pipe pile centrifugal forming device according to claim 9, wherein the precast reinforced concrete pipe pile centrifugal forming method further comprises the following specific steps:
step five, centrifugally injecting: the concrete pouring equipment which is externally connected with the pipe pile is used for pouring concrete slurry into the pouring tray (1201) through the external connecting pipe (1203) and the rotary joint (1202), so that the six evenly distributed pouring nozzles (1204) are used for pouring the concrete into the pipe pile prefabricated mould (4), the internal materials of the pipe pile prefabricated mould (4) are sufficient, and the concrete is compacted in four stages of slow speed, low speed, medium speed and high speed during the centrifugation;
step six, autoclaved curing: taking out the tubular pile in the tubular pile prefabricated die (4) after centrifugation, putting the tubular pile into an autoclaved pool, autoclaved curing the tubular pile, stopping the tubular pile for 1 to 1.5 hours at first to avoid loose cracking of the concrete surface caused by direct temperature rise, slowly raising the temperature at a temperature raising rate of 20 to 30 ℃/h, autoclaved curing the tubular pile at a constant temperature of 60 to 85 ℃ for 4 to 5 hours, and finally cooling the tubular pile to finish the autoclaved curing process.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117565218A (en) * | 2023-12-29 | 2024-02-20 | 江苏闽信新材料科技有限公司 | Production equipment and processing method of ultra-high strength prestressed concrete pipe pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117565218A (en) * | 2023-12-29 | 2024-02-20 | 江苏闽信新材料科技有限公司 | Production equipment and processing method of ultra-high strength prestressed concrete pipe pile |
| CN117565218B (en) * | 2023-12-29 | 2024-05-31 | 江苏闽信新材料科技有限公司 | Production equipment and processing method of ultra-high strength prestressed concrete pipe pile |
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