CN111136776A - High-low temperature series steam-curing three-rail circulating operation device for precast beam and working method thereof - Google Patents
High-low temperature series steam-curing three-rail circulating operation device for precast beam and working method thereof Download PDFInfo
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- CN111136776A CN111136776A CN202010122746.5A CN202010122746A CN111136776A CN 111136776 A CN111136776 A CN 111136776A CN 202010122746 A CN202010122746 A CN 202010122746A CN 111136776 A CN111136776 A CN 111136776A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000004567 concrete Substances 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000009417 prefabrication Methods 0.000 claims abstract description 7
- 230000002787 reinforcement Effects 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 238000012423 maintenance Methods 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
- B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
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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
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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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
- B28B23/04—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 the elements being stressed
- B28B23/043—Wire anchoring or tensioning means for the reinforcements
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- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a three-rail circulating operation device for high-low temperature series steam curing of a precast beam and a working method thereof, the device comprises a battery-powered tractor, a flat-bed trolley, three long circular operation rails and a series operation system, wherein the series operation system comprises a template assembly and disassembly and reinforcement tire mold area, a concrete pouring area, a high-low temperature series steam curing area and a prestress tensioning area which are sequentially arranged along the operation advancing direction, the three long circular operation rails comprise a power rail for erecting the battery-powered tractor and two walking rails which are parallelly arranged on two sides of the power rail for erecting the flat-bed trolley, the battery-powered tractor advances along the walking rails along a plurality of flat-bed trolleys which are connected in a power rail traction mode, sequentially enters each working area of the series operation system, and the rapid prefabrication of the precast beam is completed in a closed circulating mode. The device and the working method thereof are beneficial to saving a prefabricating field, improving the beam manufacturing efficiency, effectively ensuring the prefabricating quality and simultaneously obviously reducing the cost.
Description
Technical Field
The invention belongs to the technical field of precast beam production, and particularly relates to a high-low temperature series steam-curing three-rail circulating operation device for precast beams and a working method thereof.
Background
In recent decades, with the rapid development of the traffic industry in China, a large number of bridges are built in China, wherein the precast concrete beam bridges are widely applied in China due to the characteristics of good structural performance, low construction cost, attractive appearance, convenience in construction and the like.
Traditional precast beam body construction mode, the precast site availability factor is low, and then influences the production efficiency of whole precast beam, from construction organization design and spray maintenance construction process, traditional "construction area is fixed, construction process circulation" construction method exists that the process alternates operation efficiency low, labour and mechanical equipment rate of utilization and can not obtain abundant performance to the precast site is big, maintenance cycle length, construction quality are difficult for obtaining shortcomings such as assurance.
Disclosure of Invention
The invention aims to provide a high-low temperature series steam-curing three-rail circulating operation device for a precast beam and a working method thereof, and the device and the working method thereof are favorable for saving a precast site and improving beam manufacturing efficiency.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a precast beam high low temperature series connection evaporates three rail circulation operation device of curing, includes battery powered tractor, platform truck, three long circular operation tracks and series operation system, series operation system installs and removes and reaches steam curing district and the prestressing force stretch-draw district that reinforcing bar child mould district, concrete placement district, high low temperature are established ties including the template that sets gradually along operation advancing direction, three long circular operation tracks include a power track that is used for erectting battery powered tractor and parallel arrangement in its both sides in order to erect two walking tracks of platform truck, battery powered tractor advances along walking track along a plurality of platform trucks that power track traction modulus connects, gets into each workspace of series operation system in proper order to the quick prefabrication of precast beam is accomplished to closed circulation's mode.
Furthermore, at least two sets of series operation systems are arranged on the three long circular operation tracks, and battery-powered tractors with corresponding numbers are arranged on the long circular operation tracks, so that the flat-plate trolley is respectively dragged by the battery-powered tractors to perform rapid prefabrication of the precast beam at the same time.
Furthermore, the steam curing area mainly comprises a first low-temperature steam curing chamber, a high-temperature steam curing chamber and a second low-temperature steam curing chamber which are sequentially connected in series, wherein the front part and the rear part of each steam curing chamber are respectively provided with an entrance guard capable of being automatically opened and closed, and the battery-powered tractor pulls each flat trolley to sequentially enter the first low-temperature steam curing chamber, the high-temperature steam curing chamber and the second low-temperature steam curing chamber, so that the precast beam which is poured and placed on each flat trolley is continuously led to the first low-temperature steam curing chamber, the high-temperature steam curing chamber and the second low-temperature steam curing chamber which are suitable for the precast beam concrete strength increase, and the precast beam curing is completed.
Furthermore, the battery-powered tractor mainly comprises a rack, a gear motor, two pairs of movable wheel shafts, a pair of positioning clamp shafts, a storage battery pack, an intelligent controller and a relay, wherein the storage battery pack supplies power for the gear motor and the intelligent controller, transmission gears at one ends of the two pairs of movable wheel shafts are respectively matched with motor gears of the gear motor, and movable wheels at the other ends of the two pairs of movable wheel shafts are clamped on an upper flange plate of a power track, so that the movable wheels and the upper flange plate of the power track are rubbed under the driving of the gear motor to generate traction force, and the battery-powered tractor and the flat trolley are driven to move; the relay and the positioning clamp shaft are arranged at the side of the web plate of the power track, the relay controls the positioning clamp shaft to reciprocate, the positioning clamp shaft is driven to be inserted into the positioning hole in the web plate of the power track to brake after the relay is powered on, and the positioning clamp shaft is driven to move out of the positioning hole to release the brake after the relay is powered off; the intelligent controller is respectively electrically connected with the control input end of the gear motor and the relay so as to control the gear motor to work and the relay to be switched on and off.
Furthermore, the power track is a steel rail formed by an upper flange plate, a web plate and a lower flange plate, and positioning holes are formed in the web plate at intervals along the length direction of the power track so as to be matched with a positioning clamp shaft of the battery-powered tractor to realize accurate braking limiting.
Furthermore, the flat-bed platform truck mainly comprises a pressure-bearing flat steel plate, transverse and longitudinal stiffening ribs arranged at the bottom of the pressure-bearing flat steel plate and four T-shaped steel unilateral wheel shafts, the flat-bed platform truck is erected on the two walking tracks through the T-shaped steel unilateral wheel shafts so as to prevent slippage and derailment, and the flat-bed platform truck is connected with movable bolts through steel pull rods to realize modular connection among the flat-bed platform trucks.
The invention also provides a working method of the three-rail circulating operation device for high-low temperature series steam curing of the precast beam, which comprises the following steps:
(1) installing battery-powered tractors on power rails of the three built long circular operation rails, installing a certain number of flat trolleys on the two walking rails according to the production requirements of the precast beam and the maximum operation capacity of the rails, and connecting the flat trolleys with the battery-powered tractors after the flat trolleys are subjected to modular connection;
(2) the battery-powered tractor pulls the flat-bed trolley to advance, enters a template assembly and disassembly area and a steel bar tire mold area to carry out template and steel bar framework installation, then pulls the flat-bed trolley to move to a concrete pouring area to pour beam concrete;
(3) the battery-powered tractor pulls the first batch of flat trolleys and the precast beams on which concrete pouring is completed to move to a first low-temperature steam curing chamber of the steam curing system; after the precast beams on the first batch of flat plate trolleys meet the requirement of preliminary maintenance, the battery-powered tractor pulls the first batch of flat plate trolleys and the precast beams thereon to leave the first low-temperature steam curing chamber and enter the high-temperature steam curing chamber, and then the second batch of flat plate trolleys and the precast beams thereon enter the first low-temperature steam curing chamber; after the precast beams on the first batch of flat plate trolleys meet the strength requirement, the battery-powered tractor pulls the first batch of flat plate trolleys and the precast beams thereon to leave the high-temperature steam curing chamber and enter the second low-temperature steam curing chamber, at the moment, the second batch of flat plate trolleys and the precast beams thereon leave the first low-temperature steam curing chamber and enter the high-temperature steam curing chamber, and the third flat plate trolley and the precast beams thereon enter the first low-temperature steam curing chamber; after the precast beams on the first batch of flat plate trolleys are cured, the battery-powered tractor pulls the first batch of flat plate trolleys and the precast beams on the first batch of flat plate trolleys to leave the second low-temperature steam curing chamber, namely leave the steam curing system, at the moment, the second batch of flat plate trolleys and the precast beams on the second batch of flat plate trolleys leave the high-temperature steam curing chamber and enter the second low-temperature steam curing chamber, and the third batch of flat plate trolleys and the precast beams on the third batch of flat plate trolleys leave the first low-temperature steam curing chamber and enter the high-temperature steam curing chamber; finishing low, high and low temperature maintenance of the precast beams on all the flat plate trolleys according to the rule;
(4) the precast beam after field maintenance moves to a prestress tensioning area along with the flat trolley, and installation, tensioning and grouting of a prestress cable are carried out;
(5) and (4) conveying or hoisting the beam body to a beam storage area, and moving the flat plate trolley to a prefabricating working area of the next beam body.
Compared with the prior art, the invention has the following beneficial effects: the invention adopts a closed cycle operation mode, completes each process task of the precast beam independently and regionally, and provides a high-low temperature steam curing environment suitable for the strength increase of precast beam concrete, so that the labor force, mechanical equipment and a steam curing system are fully utilized, the efficiency and the quality of the precast beam body are improved while the precast field is saved, and the beam cost is saved. The invention can be widely applied to the rapid prefabrication construction of the concrete bridge body and has very high economic and social values and market popularization potential.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a battery-powered tractor according to an embodiment of the invention.
Fig. 3 is a schematic drawing of the flatbed trolley in an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1, the three-rail cycle operation device for high-low temperature series steam curing of precast beam provided by the invention comprises a battery-powered tractor 1, a flat car 2, three long circular operation rails 3 and a series operation system, wherein the series operation system comprises a template assembly and disassembly and steel bar tire mold area 4, a concrete pouring area 5, a high-low temperature series steam curing area 6 and a prestress tension area 7 which are sequentially arranged along the operation advancing direction, and the three long circular operation rails 3 comprise a power rail 301 for erecting the battery-powered tractor 1 and two walking rails 302 arranged on two sides of the power rail in parallel to erect the flat car 2. The battery-powered tractor 1 draws a plurality of platform trolleys 2 connected in an modularized mode along a power track 301 to advance along a walking track 302, sequentially enters each working area (a template assembly and disassembly and reinforcement tire mold area 4, a concrete pouring area 5, a high-low temperature series steam curing area 6 and a prestress tension area 7) of a series operation system, and completes the rapid prefabrication of the precast beam in a closed cycle mode.
In order to fully exert the multi-station synchronous working advantages of the invention, at least two sets of series working systems are arranged on the three long circular working tracks 3 and are provided with a corresponding number of battery-powered tractors 1, so that the flat-bed trolleys 2 are respectively dragged by the multiple battery-powered tractors 1 to perform rapid prefabrication of precast beams.
In this embodiment, the steam curing area 6 mainly comprises a first low-temperature steam curing chamber 601, a high-temperature steam curing chamber 602, and a second low-temperature steam curing chamber 603, which are connected in series in sequence, wherein the front and rear parts of each steam curing chamber are respectively provided with an access control capable of being automatically opened and closed by system control, and the battery-powered tractor 1 pulls each flat car 2 to sequentially enter the first low-temperature steam curing chamber 601, the high-temperature steam curing chamber 602, and the second low-temperature steam curing chamber 603, so that precast beams cast and placed on each flat car are sequentially led to the first low-temperature steam curing chamber, the high-temperature steam curing chamber, and the second low-temperature steam curing chamber, which are suitable for increasing the concrete strength of the precast beams, and the quick, efficient, and energy-saving curing of the precast beams is completed.
As shown in fig. 2, the battery-powered tractor 1 mainly comprises a frame 107, a gear motor 101, two pairs of moving wheel shafts 102, a pair of positioning clamp shafts 103, a storage battery pack 104, an intelligent controller 105 and a relay 106, wherein the storage battery pack 104 supplies power to the gear motor 101 and the intelligent controller 105, the moving wheel shafts 102 are rotatably connected with the frame 107 through bearing seats, transmission gears 108 at one ends of the two pairs of moving wheel shafts 102 are respectively matched with motor gears 109 of the gear motor 101, and moving wheels 110 at the other ends clamp upper flange plates 3011 of the power track 301, so that the moving wheels 110 and the upper flange plates 3011 of the power track rub to generate traction force under the driving of the gear motor 101, and the battery-powered tractor 1 and the flatbed trolley 2 are driven to move. Because the upper flange 3011 of the power track has a certain width, it can support the frame 107, and the pair of moving axles clamps the power track from both sides of the upper flange 3011, therefore, the overall stability of the battery powered tractor 1 moving on the power track 301 can be ensured. The relay 106 and the positioning clamp shaft 103 are also mounted on the frame 107 and are arranged beside the power track web 3012, the relay 106 controls the positioning clamp shaft 103 to reciprocate, the relay 106 drives the positioning clamp shaft 103 to be inserted into the positioning hole 3014 on the power track web 3012 to brake after being electrified, and the relay 106 drives the positioning clamp shaft 103 to move out of the positioning hole 3014 to release the brake after being powered off. The intelligent controller 105 is electrically connected with the control input end of the gear motor 101 and the relay 106 respectively so as to control the gear motor 101 to work and the relay 106 to be powered on and powered off. Correspondingly, the power track 301 is a steel rail composed of an upper flange plate 3011, a web 3012 and a lower flange plate 3013, and positioning holes 3014 are arranged on the web 3012 at intervals along the length direction of the power track to match with a positioning clamp shaft of a battery-powered tractor to realize accurate braking and limiting.
As shown in fig. 3, the flat car 2 is mainly composed of a pressure-bearing flat steel plate 201, and a transverse and longitudinal stiffening rib 202 and four T-shaped steel unilateral wheel axles 203 which are arranged at the bottom of the pressure-bearing flat steel plate, the flat car 2 is erected on the two walking tracks 302 through the T-shaped steel unilateral wheel axles 203 to prevent slippage and derailment, and the flat car 2 is connected with movable bolts through steel tie rods to realize modular connection among the flat cars.
The invention also provides a working method of the precast beam high-low temperature series steam-curing three-rail circulating operation device, which comprises the following steps:
(1) and installing battery-powered tractors on power rails of the three built long circular operation rails, installing a certain number of flat trolleys on the two walking rails according to the production requirements of the precast beam and the maximum operation capacity of the rails, and connecting the flat trolleys with the battery-powered tractors after the flat trolleys are subjected to modular connection.
(2) The battery-powered tractor pulls the flat-bed trolley to advance, enters a template assembly and disassembly area and a steel bar tire mold area to install a template and a steel bar framework, then pulls the flat-bed trolley to move to a concrete pouring area, and pours beam concrete.
(3) The battery-powered tractor pulls the first batch of flat trolleys and the precast beams on which concrete pouring is completed to move to a first low-temperature steam curing chamber of the steam curing system; after the precast beams on the first batch of flat plate trolleys meet the requirement of preliminary maintenance, the battery-powered tractor pulls the first batch of flat plate trolleys and the precast beams thereon to leave the first low-temperature steam curing chamber and enter the high-temperature steam curing chamber, and then the second batch of flat plate trolleys and the precast beams thereon enter the first low-temperature steam curing chamber; after the precast beams on the first batch of flat plate trolleys meet the strength requirement, the battery-powered tractor pulls the first batch of flat plate trolleys and the precast beams thereon to leave the high-temperature steam curing chamber and enter the second low-temperature steam curing chamber, at the moment, the second batch of flat plate trolleys and the precast beams thereon leave the first low-temperature steam curing chamber and enter the high-temperature steam curing chamber, and the third batch of flat plate trolleys and the precast beams thereon enter the first low-temperature steam curing chamber; after the precast beams on the first batch of flat plate trolleys are cured, the battery-powered tractor pulls the first batch of flat plate trolleys and the precast beams on the first batch of flat plate trolleys to leave the second low-temperature steam curing chamber, namely leave the steam curing system, at the moment, the second batch of flat plate trolleys and the precast beams on the second batch of flat plate trolleys leave the high-temperature steam curing chamber and enter the second low-temperature steam curing chamber, and the third batch of flat plate trolleys and the precast beams on the third batch of flat plate trolleys leave the first low-temperature steam curing chamber and enter the high-temperature steam curing chamber; and finishing low-temperature, high-temperature and low-temperature maintenance of the precast beams on all the flat plate trolleys according to the rule.
(4) And moving the precast beam after field maintenance to a prestress tensioning area along with the flat trolley, and carrying out installation, tensioning and grouting on the prestress cable.
(5) And (4) conveying or hoisting the beam body to a beam storage area, and moving the flat plate trolley to a prefabricating working area of the next beam body.
In order to prolong the service life of the rechargeable tractor, in another embodiment of the invention, a winch may be disposed on the rechargeable tractor, the rechargeable tractor pulls the flatbed trolley through a traction rope on the winch, and the intelligent controller is electrically connected to a control input end of the winch to control the winch to adjust the length of the traction rope, so that the rechargeable tractor is located outside the steam curing system when the flatbed trolley enters the steam curing system. When the rechargeable tractor pulls the flat-bed trolley to enter the steam curing system, the rechargeable tractor extends the length of the traction rope through the winch on the rechargeable tractor, and on the premise that the flat-bed trolley is kept motionless, the rechargeable tractor continues to move until the rechargeable tractor leaves the steam curing system, so that the rechargeable tractor is prevented from being in a high-temperature environment for a long time and influencing the service life. When the precast beam on the flat trolley finishes the maintenance of the previous steam curing chamber and needs to enter the next steam curing chamber, the traction of the flat trolley is finished by rolling up the traction rope through the winch.
The above are preferred embodiments of the present invention, and all changes made according to the technical scheme of the present invention that produce functional effects do not exceed the scope of the technical scheme of the present invention belong to the protection scope of the present invention.
Claims (7)
1. The three-rail circulating operation device is characterized by comprising a battery-powered tractor, a flat-bed trolley, three long circular operation rails and a series operation system, wherein the series operation system comprises a template assembly and disassembly and a reinforcement tire mold area, a concrete pouring area, a high-temperature and low-temperature series steam curing area and a prestress tensioning area which are sequentially arranged along the operation advancing direction, the three long circular operation rails comprise a power rail for erecting the battery-powered tractor and two walking rails which are parallelly arranged on two sides of the power rail for erecting the flat-bed trolley, the battery-powered tractor pulls a plurality of flat-bed trolleys which are modularly connected along the power rail to advance along the walking rails, and sequentially enters each working area of the series operation system to finish the rapid prefabrication of a precast beam in a closed circulating mode.
2. The precast beam high and low temperature serial steam curing three-rail circulating operation device according to claim 1, wherein at least two sets of serial operation systems are arranged on the three long circular operation rails, and a corresponding number of battery-powered tractors are provided, so that the plurality of battery-powered tractors respectively drag the flat-bed trolley to perform rapid precast beam simultaneously.
3. The precast beam high and low temperature serial steam curing three-rail cycle operation device according to claim 1, wherein the steam curing area mainly comprises a first low temperature steam curing chamber, a high temperature steam curing chamber and a second low temperature steam curing chamber which are sequentially connected in series, the front part and the rear part of each steam curing chamber are respectively provided with an automatically openable and closable door access, and the battery-powered tractor pulls each flat car to sequentially enter the first low temperature steam curing chamber, the high temperature steam curing chamber and the second low temperature steam curing chamber, so that precast beams cast and placed on each flat car are sequentially led to enter the first low temperature steam curing chamber, the high temperature steam curing chamber and the second low temperature steam curing chamber which are suitable for the precast beam concrete strength increase, and the precast beams are cured.
4. The precast beam high and low temperature series connection steam-curing three-rail circulation operation device according to claim 1, wherein the battery-powered tractor mainly comprises a frame, a gear motor, two pairs of moving wheel shafts, a pair of positioning clamp shafts, a storage battery pack, an intelligent controller and a relay, the storage battery pack supplies power for the gear motor and the intelligent controller, transmission gears at one ends of the two pairs of moving wheel shafts are respectively matched with motor gears of the gear motor, and moving wheels at the other ends are clamped with upper flange plates of the power track, so that the moving wheels and the upper flange plates of the power track are rubbed to generate traction under the driving of the gear motor, and the battery-powered tractor and the flat trolley are driven to move; the relay and the positioning clamp shaft are arranged at the side of the web plate of the power track, the relay controls the positioning clamp shaft to reciprocate, the positioning clamp shaft is driven to be inserted into the positioning hole in the web plate of the power track to brake after the relay is powered on, and the positioning clamp shaft is driven to move out of the positioning hole to release the brake after the relay is powered off; the intelligent controller is respectively electrically connected with the control input end of the gear motor and the relay so as to control the gear motor to work and the relay to be switched on and off.
5. The precast beam high and low temperature series steam-curing three-rail circulating operation device as claimed in claim 4, wherein the power rail is a steel rail formed by an upper flange plate, a web plate and a lower flange plate, and positioning holes are formed in the web plate at intervals along the length direction of the power rail so as to realize accurate braking and limiting in cooperation with a positioning clamp shaft of a battery-powered tractor.
6. The precast beam high and low temperature series steam-curing three-rail circulating operation device as claimed in claim 1, wherein the flat-bed trolley mainly comprises a pressure-bearing flat steel plate, transverse and longitudinal stiffening ribs arranged at the bottom of the pressure-bearing flat steel plate and four T-shaped steel unilateral wheel shafts, the flat-bed trolley is erected on the two walking rails through the T-shaped steel unilateral wheel shafts so as to prevent slippage and derailment, and the flat-bed trolley is connected with movable bolts through steel pull rods so as to realize modular connection among the flat-bed trolleys.
7. A working method of a precast beam high and low temperature series steam-curing three-rail cycle working device according to any one of claims 1 to 6, characterized by comprising the following steps:
(1) installing battery-powered tractors on power rails of the three built long circular operation rails, installing a certain number of flat trolleys on the two walking rails according to the production requirements of the precast beam and the maximum operation capacity of the rails, and connecting the flat trolleys with the battery-powered tractors after the flat trolleys are subjected to modular connection;
(2) the battery-powered tractor pulls the flat-bed trolley to advance, enters a template assembly and disassembly area and a steel bar tire mold area to carry out template and steel bar framework installation, then pulls the flat-bed trolley to move to a concrete pouring area to pour beam concrete;
(3) the battery-powered tractor pulls the first batch of flat trolleys and the precast beams on which concrete pouring is completed to move to a first low-temperature steam curing chamber of the steam curing system; after the precast beams on the first batch of flat plate trolleys meet the requirement of preliminary maintenance, the battery-powered tractor pulls the first batch of flat plate trolleys and the precast beams thereon to leave the first low-temperature steam curing chamber and enter the high-temperature steam curing chamber, and then the second batch of flat plate trolleys and the precast beams thereon enter the first low-temperature steam curing chamber; after the precast beams on the first batch of flat plate trolleys meet the strength requirement, the battery-powered tractor pulls the first batch of flat plate trolleys and the precast beams thereon to leave the high-temperature steam curing chamber and enter the second low-temperature steam curing chamber, at the moment, the second batch of flat plate trolleys and the precast beams thereon leave the first low-temperature steam curing chamber and enter the high-temperature steam curing chamber, and the third batch of flat plate trolleys and the precast beams thereon enter the first low-temperature steam curing chamber; after the precast beams on the first batch of flat plate trolleys are cured, the battery-powered tractor pulls the first batch of flat plate trolleys and the precast beams on the first batch of flat plate trolleys to leave the second low-temperature steam curing chamber, namely leave the steam curing system, at the moment, the second batch of flat plate trolleys and the precast beams on the second batch of flat plate trolleys leave the high-temperature steam curing chamber and enter the second low-temperature steam curing chamber, and the third batch of flat plate trolleys and the precast beams on the third batch of flat plate trolleys leave the first low-temperature steam curing chamber and enter the high-temperature steam curing chamber; finishing low, high and low temperature maintenance of the precast beams on all batches of flat plate trolleys according to the rule;
(4) the precast beam after field maintenance moves to a prestress tensioning area along with the flat trolley, and installation, tensioning and grouting of a prestress cable are carried out;
(5) and (4) conveying or hoisting the beam body to a beam storage area, and moving the flat plate trolley to a prefabricating working area of the next beam body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010122746.5A CN111136776B (en) | 2020-02-27 | 2020-02-27 | Three-rail circulation operation device for precast beam high-low temperature series steam curing and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010122746.5A CN111136776B (en) | 2020-02-27 | 2020-02-27 | Three-rail circulation operation device for precast beam high-low temperature series steam curing and working method thereof |
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| Publication Number | Publication Date |
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| CN111136776A true CN111136776A (en) | 2020-05-12 |
| CN111136776B CN111136776B (en) | 2024-07-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977756A (en) * | 2021-11-17 | 2022-01-28 | 中铁一局集团有限公司 | Prefabricated T-beam steam curing module and annular production line |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02217377A (en) * | 1989-02-17 | 1990-08-30 | Takechi Koumushiyo:Kk | Method for steam curing of concrete column and apparatus therefor |
| CN107584650A (en) * | 2017-11-03 | 2018-01-16 | 福州大学 | Using the bridge prefabrication devices and methods therefor of self-propelled continuous productive process |
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| CN113977756A (en) * | 2021-11-17 | 2022-01-28 | 中铁一局集团有限公司 | Prefabricated T-beam steam curing module and annular production line |
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| CN111136776B (en) | 2024-07-05 |
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