CN111749270B - Concrete pipe gallery internal mold positioning and demolding method - Google Patents
Concrete pipe gallery internal mold positioning and demolding method Download PDFInfo
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- CN111749270B CN111749270B CN202010451576.5A CN202010451576A CN111749270B CN 111749270 B CN111749270 B CN 111749270B CN 202010451576 A CN202010451576 A CN 202010451576A CN 111749270 B CN111749270 B CN 111749270B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
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Abstract
The invention discloses a concrete pipe gallery inner mold positioning and demolding method, which comprises an inner mold frame and a lifting trolley for moving the inner mold frame to position; the inner mold frame comprises a portal frame, movable stand columns are arranged on two sides of the portal frame, side mold plates are installed on the movable stand columns, and the movable stand columns are connected with the portal frame through a translation driver; a top template is arranged at the top of the portal; the bottom of the movable stand column is provided with a stand column lifting support leg, and the height of the whole inner die frame is adjusted through the stand column lifting support leg; the bottom of the portal frame is also provided with a bottom middle supporting leg which can rise and fall. During construction, the lifting trolley lifts the inner mold frame to move and initially take place, and the position and the height of the side mold plate are adjusted by combining the inner mold frame, so that mold erecting and demolding are realized.
Description
Technical Field
The invention belongs to the technical field of pipe gallery concrete construction, and particularly relates to a concrete pipe gallery internal mold positioning and demolding method.
Background
Along with the rapid development of the urbanization process, the urban land resources are more and more deficient, the urban building engineering and public facilities are increased day by day, and particularly in the construction of various pipelines, if the planning and design are not proper, the problem of repeated excavation can occur, so that the normal traffic of the city can be influenced, and the service life of various pipelines can be influenced. Through using utility tunnel construction technique, can effectively solve above-mentioned problem, guarantee all kinds of pipeline safe operation. The mode such as wood mould, steel mould is adopted more in current piping lane concrete construction, and the dismouting time is long, and the template needs frequent dismouting, leads to the whole concrete quality of piping lane to be difficult to control, and relies on manual work more during the construction, and intensity of labour is big, and danger coefficient is high, and degree of mechanization is low. Therefore, the equipment for pipe gallery concrete construction and the use method solve the problems in the prior art and are used for pipe gallery concrete construction.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a concrete pipe gallery internal mold positioning and demolding method, solves the problems of high manual operation strength, poor concrete molding quality, long disassembly and assembly time, low mechanization degree and the like of the existing wood mold and steel mold for pipe gallery construction, ensures the concrete molding quality, ensures the construction period and reduces the construction cost. This equipment reasonable in design, function are abundant, the removal is convenient, are applicable to the piping lane concrete construction and use.
The invention is realized by the following technical scheme:
a concrete pipe gallery inner mold positioning and demolding method comprises the following steps: the inner mold frame and the lifting trolley are used for moving the inner mold frame in place;
the internal mold frame comprises a portal frame, a movable upright post, upright post lifting support legs, a side mold plate, a top mold plate, a translation driver, a transmission assembly and a motor;
the movable upright posts are positioned at the two transverse sides of the portal frame, and the tops of the movable upright posts are slidably mounted with flange plates at the outer ends of the top door beams of the portal frame through translation sliding seats;
the side templates are arranged on the movable upright posts, and the top template is arranged on a top door beam of the door frame;
each movable upright post is connected with the portal frame on the inner side of the movable upright post through N translation drivers, N is more than or equal to 1, and the movable upright posts are driven to do translation motion through the translation drivers, so that the side templates are driven to do translation motion;
the motor is arranged on the gantry, the transmission assembly is used for realizing transmission linkage between the motor and the translation driver, after the motor is started, the motor drives the translation driver to act through the transmission assembly, and the translation driver further drives the movable upright post connected with the translation driver to do translation motion, so that the horizontal movement of the side template is realized;
the bottom of each movable stand column is provided with a stand column lifting support leg, and the height of the whole inner die frame is adjusted through the stand column lifting support leg;
the lifting trolley is characterized in that a frame is provided with a travelling mechanism, hydraulic lifting support legs and a translation actuator, and wheels are separated from the ground by pushing and lifting the frame through the hydraulic lifting support legs; the whole frame is driven to transversely translate through the translation actuator, so that the frame drives the whole inner die frame to transversely move;
the bottom of the portal frame is also provided with a bottom middle supporting leg, the top of the bottom middle supporting leg is hinged on a bottom cross brace of the portal frame, and a driver for controlling the rising and falling states of the bottom middle supporting leg is arranged between the bottom middle supporting leg and the bottom cross brace of the portal frame; when the middle supporting leg at the bottom is in a retracted state, the middle supporting leg at the bottom is parallel to the cross brace at the bottom, so that the passing and the lifting work of the lifting trolley are not influenced; when the middle supporting leg at the bottom is in a falling state, the middle supporting leg at the bottom is vertical to the bottom cross brace, the middle supporting leg at the bottom is of a telescopic structure, and after the middle supporting leg at the bottom falls down, the extension length of the middle supporting leg at the bottom is controlled until the bottom end of the middle supporting leg at the bottom is contacted with the ground, so that the supporting effect is achieved;
during the construction, every piping lane be equipped with one lift the dolly can, according to the project needs, be equipped with the quantity of centre form die carrier, specifically include following step:
the method comprises the following steps: lifting a single inner mold frame by a lifting trolley, wherein the stand column lifting support leg and the movable stand column of the inner mold frame are both in a contraction state and the bottom middle support leg is in a retraction state, the lifting trolley conveys the inner mold frame to a steel bar binding waiting lining station, then the hydraulic lifting support leg of the lifting trolley pushes and lifts the frame to separate wheels from the ground, the whole frame is driven to transversely translate by a translation actuator, and the in-position posture of the inner mold frame is adjusted to complete primary positioning;
step two: then starting a motor of the inner mold frame, driving the movable upright post to translate outwards through a translation driver, and enabling the side mold plate to move to a specified construction position;
step three: then adjusting the upright lifting support legs of the inner mold frame to enable the upright lifting support legs to support the ground, thereby fixing the position of the inner mold frame;
step four: then the lifting trolley descends to lift the supporting legs to be separated from the inner mold frame in a hydraulic mode, the lifting trolley leaves the inner mold frame, and then the middle supporting legs at the bottom of the inner mold frame are placed down to support the ground;
step five: repeating the construction steps, and completing the positioning and supporting work of the next internal mold frame by using the lifting trolley;
step six: the inner die frame finishes lining, when demolding is needed, the middle supporting leg at the bottom of the inner die frame is firstly retracted, the lifting trolley travels to the position below the inner die frame needing demolding, the hydraulic lifting supporting leg of the lifting trolley is lifted to enable the top of the lifting trolley to be connected with the bottom of the inner die frame, then the stand column lifting supporting leg of the inner die frame is retracted, the movable stand column is controlled to drive the side die plate to horizontally move towards the direction of the central line of the tunnel, and demolding of the side die plate is finished; and then the lifting trolley descends to lift the supporting legs by hydraulic pressure, so that the inner die frame finishes the demoulding of the top template.
In the technical scheme, the portal frame comprises a top door beam, a bottom cross brace and side vertical braces, wherein the side vertical braces are fixedly arranged between the top door beam and the bottom cross brace, and two sides of each bottom cross brace are respectively provided with one side vertical brace; and a middle vertical support is also arranged between the top door beam and the bottom cross support, the middle vertical support and the bottom middle support leg in a falling state are in a collinear relationship, and preferably, the middle vertical support and the bottom middle support leg in the falling state are positioned on the vertical central axis of the door frame.
In the technical scheme, the translation driver comprises a screw rod, a rotating nut, a thrust bearing seat and a transmission chain wheel, the thrust bearing seat is fixedly installed on the gantry through a bolt, the rotating nut is installed in the thrust bearing seat, the screw rod is installed in the rotating nut, the outer end of the screw rod is connected with the movable stand column, the transmission chain wheel is fixedly sleeved on the rotating nut, when the transmission chain wheel is driven to rotate, the transmission chain wheel can drive the rotating nut to rotate in the thrust bearing seat, the screw rod inside the rotating nut is driven to perform ejection or shrinkage motion along the axial direction when the rotating nut rotates, and then the screw rod drives the movable stand column connected with the screw rod to perform translation motion.
In the above technical scheme, the drive assembly includes transmission shaft, fixed mounting at the transition sprocket at transmission shaft middle part, fixed mounting at the tip sprocket at transmission shaft both ends and installs the epaxial drive sprocket of pivot of motor, the transmission shaft is transversely installed on two lateral parts erects of portal, and the epaxial drive sprocket of motor shaft passes through the chain and links with the epaxial transition sprocket of transmission, and the tip sprocket at transmission shaft both ends all adopts double sprocket, and every tip sprocket links through two chains respectively rather than the drive sprocket one-to-one on the two translation drivers of homonymy. When the motor is started, the driving chain wheel on the rotating shaft of the motor drives the transmission shaft to rotate through the transition chain wheel connected with the driving chain wheel, so that the end chain wheels at the two ends of the transmission shaft synchronously rotate, the end chain wheels drive the transmission chain wheel on the rotating nut of the translation driver to rotate through the chain, the transmission chain wheel can drive the rotating nut to rotate in the thrust bearing seat, the screw rod inside the rotating nut is driven to do ejection or contraction motion along the axial direction when the rotating nut rotates, and then the screw rod drives the movable stand column connected with the screw rod to do translation motion, and the horizontal movement of the side template is realized.
In the technical scheme, the inner die frame can be longitudinally spliced into required sizes by a plurality of inner die frame units to adapt to different construction requirements, and each inner die frame unit comprises two gantries, four movable stand columns, eight translation drivers, a motor and a transmission shaft; the two gantries are longitudinally arranged at intervals from front to back, two movable upright columns are respectively arranged on two transverse sides of each gantry, the front movable upright column and the rear movable upright column on the same side are connected through a longitudinal beam and a cross brace, and each movable upright column is connected with the gantry part on the inner side of the movable upright column through two translation drivers; the motor and the transmission shaft are arranged on one portal, a driving chain wheel on a rotating shaft of the motor is linked with a transition chain wheel on the transmission shaft through a chain, end chain wheels at two ends of the transmission shaft adopt double-row chain wheels, and each end chain wheel is respectively linked with the transmission chain wheels on two translation drivers at the same side of the end chain wheel in a one-to-one correspondence mode through two chains; and the transmission chain wheels of the four translation drivers on the door frames provided with the motors and the transmission shafts are double-row chain wheels, and the double-row chain wheels are correspondingly linked with the transmission chain wheels of the four translation drivers on the other door frame in a front-back one-to-one manner, so that the eight translation drivers are synchronously linked under the driving of one motor.
In the above technical solution, the specific mounting structure of the thrust bearing seat and the swivel nut of the translation driver is: one end of the rotating nut is provided with a flange; the thrust bearing block comprises an upper cover and a base which are butted together through a bolt, a mounting cavity is formed between the upper cover and the base, a flange of the rotating nut is mounted in the mounting cavity, and, a plurality of circles of balls or lubricating slideways are arranged between the upper surface of the flange of the rotating nut and the upper cover of the thrust bearing seat, a plurality of circles of balls or lubricating slideways are also arranged between the lower surface of the flange of the rotating nut and the base of the thrust bearing seat, a plurality of circles of balls or lubricating slideways are also arranged between the outer side surface of the flange of the rotating nut and the upper cover of the thrust bearing seat, the structure ensures that the rotating nut and the thrust bearing seat are provided with balls axially and radially, therefore, the translation driver can bear enough axial thrust and certain radial pressure, and the service life and the working stability of the translation driver can be prolonged.
In the above technical solution, the structure of the transmission shaft is: the transmission shaft comprises a first rotating shaft, a second rotating shaft, a first bearing seat, a second bearing seat and a middle connecting shaft, the first rotating shaft is installed on one of the side vertical supports of the door frame through the first bearing seat, the second rotating shaft is installed on the other side vertical support of the door frame through the second bearing seat, an end chain wheel is fixedly installed at the outer end of the first rotating shaft through a key, the inner end of the first rotating shaft is connected with one end of the middle connecting shaft through a flange, and the transition chain wheel is fixedly installed on the first rotating shaft; the outer end of the second rotating shaft is fixedly provided with the other end part chain wheel through a key, and the inner end of the second rotating shaft is in flange connection with the other end of the middle connecting shaft.
In the technical scheme, the side templates comprise a straight template and a top corner template, the straight template is vertically arranged and fixed on the movable upright post through a back rib, and the top corner template is fixedly connected to the top of the straight template; the top template comprises a straight template and side corner templates, the straight template is horizontally arranged and fixed on a top door beam of the portal through a back rib, and the side corner templates are fixedly connected to the left end and the right end of the straight template; and a support assembly is also arranged between the top corner template of the side template and the movable upright post, and the support assembly is used for enhancing the support strength of the corner template.
In the technical scheme, the supporting component comprises a back edge, a first hinged support, a second hinged support and a connecting rod, the back edge is welded on the back face of the top corner template, the top end of the connecting rod is installed on the back edge through the first hinged support, and the bottom end of the connecting rod is installed on the movable stand column through the second hinged support.
In the technical scheme, the back edge on the back of the top corner template is exposed out of the top corner template for a distance, so that when the movable upright post drives the whole side template to be opened outwards in place, the exposed part of the back edge can support the side corner template of the top template, and the support strength of the whole corner template is ensured.
In the above technical solution, the middle vertical brace and the bottom middle support leg in the falling state are in a collinear relationship, and preferably, the middle vertical brace and the bottom middle support leg in the falling state are located on the vertical central axis of the gantry.
In the technical scheme, the frame of the lifting trolley is provided with four hydraulic lifting support legs and two translation actuators, and two ends of each translation actuator are respectively provided with one hydraulic lifting support leg.
In the technical scheme, the translation actuator comprises a guide sleeve, a guide core and a translation oil cylinder, the guide core is slidably mounted in the guide sleeve, two ends of the guide core are respectively connected with the hydraulic lifting support legs, the tail part of the translation oil cylinder is connected with the guide sleeve, the actuating end of the translation oil cylinder is connected with the hydraulic lifting support legs, and the frame is fixedly mounted on the guide sleeve; when 4 hydraulic lifting support legs of the lifting trolley rise, wheels of the lifting trolley are separated from the ground, the 4 hydraulic lifting support legs are supported on the ground, then the guide sleeve is driven by the translation oil cylinder to move transversely along the guide core, and the guide sleeve synchronously drives the frame to translate transversely.
The invention has the advantages and beneficial effects that:
1. this equipment can be applicable to the concrete piping lane construction of large-span, is provided with middle vertical braces between the top door beam of inner mould die carrier and the bottom stull to supporting leg in the middle of still being provided with the bottom in the portal bottom, thereby the intensity of reinforcing whole equipment prevents the cracked dangerous of emergence equipment. In addition, in order not to influence the passing and lifting work of the lifting trolley, the top of the bottom middle supporting leg is hinged on the bottom cross brace of the portal through a hinged support, a driver for controlling the rising and falling states of the bottom middle supporting leg is arranged between the bottom middle supporting leg and the bottom cross brace of the portal, and when the bottom middle supporting leg is in the retracted state, the bottom middle supporting leg is parallel to the bottom cross brace, so that the passing and lifting work of the lifting trolley cannot be influenced; when the middle supporting leg in bottom is in the whereabouts state, the middle supporting leg in bottom is perpendicular with the bottom stull, and the middle supporting leg in bottom is extending structure, falls behind as the middle supporting leg in bottom, controls its extension length again, and the bottom that is until the middle supporting leg in bottom contacts ground to play the supporting role.
2. The inner die frame can be transversely and longitudinally freely spliced into required sizes to meet the construction requirements of concrete pipe galleries of different specifications; the bottom of the movable stand column of the inner die frame is provided with a lifting support leg, and the supporting height of the whole inner die frame can be adjusted to adapt to different section requirements.
3. The internal mold frame can be formed by longitudinally splicing a plurality of internal mold frame units, each internal mold frame unit comprises two door frames, four movable stand columns, eight translation drivers, a motor and a transmission shaft, the eight translation drivers are driven by one motor to synchronously act, and the internal mold frame is simple in structure, stable in operation, convenient to control and low in manufacturing cost.
4. The inner die frame adopts a special translation driver to drive the movable stand column to move transversely, and then horizontal movement of the side die plate is realized. Translation driver reasonable in design, stable in structure, bearing capacity are strong, and axial and radial all have ball or lubricated slide between translation driver's swivel nut and the thrust bearing frame to not only make the translation driver can bear sufficient axial thrust, also can bear certain radial pressure, can strengthen the life and the job stabilization nature of translation driver.
5. Each pipe gallery only needs to be provided with one lifting trolley, and the plurality of inner die frames can be positioned and supported one by one through the lifting trolley; during construction, the lifting trolley lifts a single inner mold frame, at the moment, the upright lifting support leg and the movable upright of the inner mold frame are both in a contraction state, the middle support leg at the bottom is in a retraction state, the lifting trolley conveys the inner mold frame to a steel bar binding station for waiting for lining, then the hydraulic lifting support leg of the lifting trolley pushes and lifts the frame to separate wheels from the ground, the whole frame is driven to transversely translate through the translation actuator, and the in-position posture of the inner mold frame is adjusted to complete primary positioning; then starting a motor of the inner mold frame, driving the movable upright post to translate outwards through a translation driver, and enabling the side mold plate to move to a specified construction position; then adjusting the upright lifting support legs of the inner mold frame to enable the upright lifting support legs to support the ground, thereby fixing the position of the inner mold frame; then the lifting trolley descends to lift the supporting legs to be separated from the inner mold frame in a hydraulic mode, the lifting trolley leaves the inner mold frame, and then the middle supporting legs at the bottom of the inner mold frame are placed down to support the ground; and repeating the construction steps, and completing the positioning and supporting work of the next internal mold frame by utilizing the lifting trolley. The inner die frame finishes lining, when demolding is needed, the middle supporting leg at the bottom of the inner die frame is firstly retracted, the lifting trolley travels to the position below the inner die frame needing demolding, the hydraulic lifting supporting leg of the lifting trolley is lifted to enable the top of the lifting trolley to be connected with the bottom of the inner die frame, then the stand column lifting supporting leg of the inner die frame is retracted, the movable stand column is controlled to drive the side die plate to horizontally move towards the direction of the central line of the tunnel, and demolding of the side die plate is finished; and then the lifting trolley descends to lift the supporting legs by hydraulic pressure, so that the inner die frame finishes the demoulding of the top template.
In conclusion, the concrete lining device can effectively reduce the labor intensity of workers, ensure the concrete lining quality, improve the mechanization degree of pipe gallery construction, has simple structure, reasonable design, rich functions and convenient movement, and is suitable for the use in pipe gallery concrete construction.
Drawings
Fig. 1 is a schematic cross-sectional structure of the present invention.
Fig. 2 is a schematic view of the vertical cross-section structure of the present invention.
Fig. 3 is a partial enlarged view of the top of the movable upright of fig. 2.
Fig. 4 is a schematic structural view of the translation actuator of the present invention.
Fig. 5 is a side view of the translation actuator of the present invention.
Fig. 6 is a schematic structural view (bottom view) of the lifting trolley of the invention.
Fig. 7 is a schematic structural view (side view) of the lift truck of the present invention.
FIG. 8 is an enlarged schematic view of the present invention between the spin nut and the thrust bearing block of the translation driver.
Fig. 9 is a left side structural schematic view of a transmission assembly of the inner mold frame of the present invention.
Fig. 10 is a right side structural view of a driving assembly of the inner mold frame of the present invention.
Fig. 11 is a schematic structural view of a corner of the inner mold frame of the present invention.
FIG. 12 is a schematic view of the present invention with the addition of the intermediate vertical support and the bottom intermediate support leg (with the bottom intermediate support leg in a stowed position).
FIG. 13 is a schematic view of the present invention with the addition of the intermediate vertical support and the bottom intermediate support leg (with the bottom intermediate support leg in a falling position).
FIG. 14 is a schematic view of the present invention with the addition of the intermediate vertical support and the bottom intermediate support leg (the bottom intermediate support leg in a lowered and extended condition).
FIG. 15 is a schematic structural view of the present invention when the translational actuator of the lift truck employs a translational cylinder.
FIG. 16 is a schematic structural view of the translational actuator of the lift truck of the present invention using a linear slide.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the present invention is further described below with reference to specific examples.
Example one
A mechanized apparatus for concrete piping lane construction, comprising: the inner die frame part and the lifting trolley part are used for moving the inner die frame to be in place.
Referring to the attached drawings 1-5, the internal mold frame part comprises a door frame 1, a movable upright post 2, upright post lifting support legs 3, a side mold plate 4, a top mold plate 5, a translation driver 6, a transmission assembly and a motor 8.
The portal frame 1 consists of a top portal beam 1-1, a bottom cross brace 1-2 and a side vertical brace 1-3, wherein the top portal beam is formed by splicing and welding H-shaped steel or steel plates and can be formed by bolting a plurality of sections so as to meet the use of sections with different widths; the side vertical braces 1-3 are fixedly arranged between the top door beam 1-1 and the bottom cross braces 1-2 and play a role in connecting the top door beam and the bottom cross braces, and one side vertical brace 1-3 is arranged on each of two sides of each bottom cross brace;
the movable upright posts 2 are positioned at two sides of the portal frame 1 in the transverse direction (width direction), namely two movable upright posts 2 are respectively arranged at two sides of each portal frame 1; the top end of the movable upright post is provided with a translation sliding seat 2-1, and the top of the movable upright post is arranged in a sliding way with an outer end flange plate of a top door beam 1-1 of the portal frame through the translation sliding seat; furthermore, the movable upright post is positioned on the outer side of the side vertical support of the door frame.
The side formworks 4 are installed on the movable upright posts 2, and the top formworks 5 are installed on the top door beams 1-1 of the door frame.
Each movable upright post 2 is connected with the door frame on the inner side of the movable upright post through two translation drivers 6 (preferably, one translation driver is installed on a side vertical support of the door frame, the other translation driver is installed at the end part of a bottom cross support of the door frame, or two translation drivers are installed on the side vertical support), and the movable upright posts 2 are driven to do translation motion through the translation drivers 6, so that the translation motion of the side templates is driven, and the positioning and demoulding actions of the side templates are met.
The translation driver 6 comprises a screw rod 6-1, a rotating nut 6-2, a thrust bearing seat 6-3 and a transmission chain wheel 6-4, the thrust bearing seat 6-3 is fixedly arranged on the gantry through a bolt, the rotating nut 6-2 is arranged in the thrust bearing seat 6-3, the screw rod 6-1 is arranged in the rotating nut 6-2, the outer end of the screw rod is connected with the movable upright post 2, the transmission chain wheel 6-4 is fixedly sleeved on the rotating nut 6-2 through a key a, when the transmission chain wheel 6-4 is driven to rotate, the transmission chain wheel can drive the rotating nut 6-2 to rotate in the thrust bearing seat 6-3, the rotating nut drives the screw rod 6-1 inside the rotating nut to perform ejection or contraction motion along the axial direction, and then the screw rod drives the movable upright post 2 connected with the screw rod to perform translational motion.
The transmission assembly is used to realize a transmission link between the motor 8 and the translation drive 6, in particular: the transmission assembly comprises a transmission shaft 7-1, a transition chain wheel 7-2 fixedly installed in the middle of the transmission shaft, end chain wheels 7-3 fixedly installed at two ends of the transmission shaft, and a driving chain wheel 7-4 installed on a motor rotating shaft, wherein the transmission shaft is transversely installed on two side vertical supports of the door frame, a motor 8 is fixed on one side vertical support of the door frame through a motor installation seat, the driving chain wheel 7-4 on the motor rotating shaft is connected with the transition chain wheel 7-2 on the transmission shaft through a chain, the end chain wheels 7-3 at two ends of the transmission shaft are double-row chain wheels (namely double-row chain teeth are arranged on the chain wheels), and each end chain wheel 7-3 is correspondingly connected with the transmission chain wheels 6-4 on the two translation drivers 6 on the same side through two chains. When the motor 8 is started, the driving chain wheel on the rotating shaft of the motor drives the transmission shaft 7-1 to rotate through the transition chain wheel connected with the driving chain wheel, so that the end chain wheels at the two ends of the transmission shaft synchronously rotate, the end chain wheel drives the transmission chain wheel 6-4 on the rotating nut of the translation driver 6 to rotate through the chain, the transmission chain wheel can drive the rotating nut 6-2 to rotate in the thrust bearing seat, the screw 6-1 inside the rotating nut is driven to do ejection or contraction motion along the axial direction when the rotating nut rotates, and then the screw drives the movable upright post 2 connected with the screw to do translation motion, so that the horizontal movement of the side template is realized.
The bottom of each movable stand column 2 is provided with a stand column lifting supporting leg 3, and the height of the whole inner die frame is adjusted through the stand column lifting supporting leg.
Referring to fig. 6-7, the lifting trolley 21 includes a frame 21-1, and at least 4 wheels are disposed on the frame 21-1 and driven by a motor and a transmission mechanism, so as to control the lifting trolley 21 to actively travel. A hydraulic lifting support leg 21-2 and a translational actuator 21-3 are arranged on the frame 21-1, and the frame 21-1 is lifted by the hydraulic lifting support leg to separate the wheels from the ground; then the whole vehicle frame 21-1 is driven to transversely translate through the translation actuator, so that the vehicle frame 21-1 drives the whole inner die frame to transversely move.
During construction, each pipe gallery is provided with one lifting trolley, and the number of the inner die frames is matched according to project requirements. Specifically, the use method of the lining equipment for pipe gallery construction of the invention is as follows:
the method comprises the following steps: a single inner mold frame is lifted by a lifting trolley, at the moment, a stand column lifting support leg 3 and a movable stand column 2 of the inner mold frame are both in a contraction state, the inner mold frame is conveyed to a steel bar binding waiting lining station by the lifting trolley, then a frame is pushed and lifted by a hydraulic lifting support leg of the lifting trolley, wheels are separated from the ground, the whole frame 21-1 is driven to transversely translate by a translation actuator, and the in-position posture of the inner mold frame is adjusted to complete primary positioning;
step two: then starting a motor 8 of the internal mold frame, driving the movable upright post 2 to translate outwards through a translation driver 6, and enabling the side mold plate 4 to move to a specified construction position;
step three: then adjusting the upright lifting support legs 3 of the inner mold frame to enable the upright lifting support legs 3 to support the ground, thereby fixing the position of the inner mold frame;
step four: then the lifting trolley descends to lift the supporting legs to separate from the internal mold frame by hydraulic pressure;
step five: repeating the construction steps, and completing the positioning and supporting work of the next internal mold frame by using the lifting trolley;
step six: when the inner die frame finishes lining demolding, the lifting trolley travels to the position below the inner die frame needing demolding, the hydraulic lifting support legs of the lifting trolley are lifted to enable the top of the lifting trolley to be connected with the bottom of the inner die frame, then the stand column lifting support legs 3 of the inner die frame are folded, and then the movable stand columns 2 are controlled to drive the side die plates 4 to horizontally move towards the center line direction of the tunnel, so that demolding of the side die plates is finished; and then the lifting trolley descends to lift the supporting legs by hydraulic pressure, so that the internal mold frame finishes the demolding of the top template 5.
Example two
On the basis of the first embodiment, furthermore, the internal mold frame can be longitudinally spliced into required sizes by a plurality of internal mold frame units to meet different construction requirements, and each internal mold frame unit can realize that one motor 8 can simultaneously drive eight translation drivers 6 to synchronously act. Specifically speaking, the two methods are as follows: each internal mold frame unit comprises two door frames 1, four movable upright posts 2, eight translation drivers 6, a motor 8 and a transmission shaft 7-1.
The two door frames are longitudinally arranged in a front-back spaced mode, two movable upright columns are respectively arranged on two sides of each door frame in the transverse direction (width direction), the front movable upright column and the rear movable upright column on the same side are connected through a longitudinal beam 9 and a cross brace 10, the function of stabilizing the structure is achieved, the internal mold frame unit is prevented from being stressed and deformed, each movable upright column 2 is connected with the door frame part on the inner side of the movable upright column through two translation drivers 6, namely four translation drivers 6 are installed on each door frame 1; the motor 8 and the transmission shaft 7-1 are installed on one portal, a driving chain wheel 7-4 on a rotating shaft of the motor is connected with a transition chain wheel 7-2 on the transmission shaft through a chain, end chain wheels 7-3 at two ends of the transmission shaft are double-row chain wheels, and each end chain wheel is respectively connected with the transmission chain wheels 6-4 on the two translation drivers 6 at the same side through two chains in a one-to-one correspondence mode; and the transmission chain wheels of the four translation drivers on the door frames provided with the motors and the transmission shafts are double-row chain wheels, and the double-row chain wheels are respectively linked with the transmission chain wheels of the four translation drivers on the other door frame in a front-back (longitudinal) one-to-one correspondence manner, so that the eight translation drivers are synchronously linked under the driving of one motor.
EXAMPLE III
On the basis of the first embodiment, further referring to fig. 8, the specific mounting structure of the thrust bearing seat 6-3 and the rotating nut 6-2 of the translation driver 6 is as follows: one end of the rotating nut 6-2 is provided with a flange 6-21; the thrust bearing seat 6-3 comprises an upper cover 6-31 and a base 6-32, the upper cover 6-31 and the base 6-32 are butted together through bolts, an installation cavity is formed between the upper cover 6-31 and the base 6-32, a flange 6-21 of the rotating nut 6-2 is installed in the installation cavity, a plurality of circles of balls 6-3a are arranged between the upper surface of the flange 6-21 of the rotating nut 6-2 and the upper cover 6-31 of the thrust bearing seat 6-3, a plurality of circles of balls 6-3b are also arranged between the lower surface of the flange 6-21 of the rotating nut 6-2 and the base 6-32 of the thrust bearing seat 6-3, a plurality of circles of balls 6-3c are also arranged between the outer side surface of the flange 6-21 of the rotating nut 6-2 and the upper cover 6-31 of the thrust bearing seat 6-3, the structure enables the rotating nut 6-2 and the thrust bearing seat 6-3 to be provided with balls axially and radially, so that the translation driver 6 can bear enough axial thrust and certain radial pressure, and the service life and the working stability of the translation driver 6 can be prolonged.
Furthermore, an oil filling hole 6-33 communicated with an internal installation cavity of the thrust bearing seat 6-3 is arranged on the upper cover 6-31 and used for filling lubricating oil, and a sealing nozzle is arranged on the oil filling hole in a matching mode.
Furthermore, in order to simplify the installation between the thrust bearing seat 6-3 and the rotating nut 6-2, the balls 6-3a, 6-3b and 6-3c are not required to be arranged, and instead, a plurality of rings of lubricating slideways are arranged between the upper surface of the flange 6-21 of the rotating nut 6-2 and the upper cover 6-31 of the thrust bearing seat 6-3, a plurality of rings of lubricating slideways are arranged between the lower surface of the flange 6-21 of the rotating nut 6-2 and the base 6-32 of the thrust bearing seat 6-3, and a plurality of rings of lubricating slideways are arranged between the outer side surface of the flange 6-21 of the rotating nut 6-2 and the upper cover 6-31 of the thrust bearing seat 6-3, so that the sufficient lubrication between the thrust bearing seat 6-3 and the rotating nut 6-2 is ensured, the installation is simplified, and the manufacturing and processing cost is saved.
Example four
On the basis of the first embodiment, further referring to fig. 9-10, the structure of the transmission shaft 7-1 is as follows: the transmission shaft 7-1 comprises a first rotating shaft 7-11, a second rotating shaft 7-12, a first bearing seat 7-13, a second bearing seat 7-14 and an intermediate connecting shaft 7-15, the first rotating shaft 7-11 is installed on one side vertical support of the door frame through the first bearing seat 7-13, the second rotating shaft 7-12 is installed on the other side vertical support of the door frame through the second bearing seat 7-14, an end chain wheel is fixedly installed at the outer end of the first rotating shaft 7-11 through a key, the inner end of the first rotating shaft 7-1 is connected with one end of the intermediate connecting shaft 7-15 through a flange b, and the transition chain wheel 7-2 is fixedly installed on the first rotating shaft 7-11; the outer end of the second rotating shaft 7-12 is fixedly provided with another end part chain wheel through a key, and the inner end of the second rotating shaft 7-12 is connected with the other end of the middle connecting shaft 7-15 through a flange.
Further, the intermediate connecting shafts 7 to 15 may be an integral shaft rod or may be formed by splicing a plurality of shaft rods, so as to meet the requirement of variable cross-section.
EXAMPLE five
On the basis of the first embodiment, further referring to fig. 11, the side formworks 4 comprise straight formworks 4-1 and top corner formworks 4-2, the straight formworks are vertically arranged and fixed on the movable upright posts 2 through back ribs (the back ribs adopt C-shaped steel), and the top corner formworks 4-2 are fixedly connected to the tops of the straight formworks 4-1;
the top template 5 comprises a straight template 5-1 and a side corner template 5-2, the straight template is horizontally arranged and fixed on a top door beam 1-1 of the door frame through a back rib (the back rib adopts C-shaped steel), and the side corner template 5-2 is fixedly connected to the left end and the right end of the straight template 5-1.
Further, a support assembly 11 (with reference to fig. 1) is further arranged between the top corner template 4-2 of the side template and the movable upright post 2, and the support assembly is used for enhancing the support strength of the corner template; the supporting component comprises a back edge 11-1, a first hinged support 11-2, a second hinged support 11-3 and a connecting rod 11-4, the back edge 11-1 is made of square steel and welded to the back of the top corner template 4-2, the top end of the connecting rod 11-4 is installed on the back edge through the first hinged support, and the bottom end of the connecting rod is installed on the movable stand column through the second hinged support.
Further, the back edge on the back of the top corner template is exposed out of the top corner template for a certain distance, so that when the movable upright posts drive the whole side template to be opened outwards in place, the exposed part of the back edge can support the side corner template of the top template, and the supporting strength of the whole corner template is guaranteed.
EXAMPLE six
On the basis of the first embodiment, further referring to fig. 12-14, for the construction of a large-span concrete pipe gallery, the transverse span (i.e., width) of the pipe gallery may be as long as 4-6 m, and then the width of the corresponding portal frame may be greatly increased, so that the length of the top door beam and the bottom cross brace of the portal frame is too long, and the risk of the equipment collapsing is greatly increased.
In order to enhance the strength of the whole lining equipment and prevent the danger of equipment fracture, an intermediate vertical support 12 is arranged between the top door beam and the bottom cross support of the portal frame, and a bottom intermediate support leg 13 is arranged at the bottom of the portal frame, so that the strength of the whole lining equipment is enhanced.
Furthermore, in order not to influence the passing and lifting work of the lifting trolley, the top of the bottom middle supporting leg 13 is hinged on the bottom cross brace of the portal frame through a hinged support, and a driver 14 for controlling the rising and falling states of the bottom middle supporting leg is arranged between the bottom middle supporting leg and the bottom cross brace of the portal frame. When the middle supporting leg at the bottom is in a retracted state, the middle supporting leg at the bottom is parallel to the cross brace at the bottom, so that the passing and the lifting work of the lifting trolley are not influenced; when the middle supporting leg in bottom is in the whereabouts state, the middle supporting leg in bottom is perpendicular with the bottom stull, and the middle supporting leg in bottom is extending structure, falls behind as the middle supporting leg in bottom, controls its extension length again, and the bottom that is until the middle supporting leg in bottom contacts ground to play the supporting role.
Specifically, the construction method comprises the following steps:
furthermore, the middle vertical support and the bottom middle support leg in the falling state are in a collinear relationship, and preferably, the middle vertical support and the bottom middle support leg in the falling state are located on a vertical central axis of the door frame.
The method comprises the following steps: lifting a single inner mold frame by a lifting trolley, wherein the stand column lifting support leg and the movable stand column of the inner mold frame are both in a contraction state and the bottom middle support leg is in a retraction state, the lifting trolley conveys the inner mold frame to a steel bar binding waiting lining station, then the hydraulic lifting support leg of the lifting trolley pushes and lifts the frame to separate wheels from the ground, the whole frame is driven to transversely translate by a translation actuator, and the in-position posture of the inner mold frame is adjusted to complete primary positioning;
step two: then starting a motor of the inner mold frame, driving the movable upright post to translate outwards through a translation driver, and enabling the side mold plate to move to a specified construction position;
step three: then adjusting the upright lifting support legs of the inner mold frame to enable the upright lifting support legs to support the ground, thereby fixing the position of the inner mold frame;
step four: then the lifting trolley descends to lift the supporting legs to be separated from the inner mold frame in a hydraulic mode, the lifting trolley leaves the inner mold frame, and then the middle supporting legs at the bottom of the inner mold frame are placed down to support the ground;
step five: repeating the construction steps, and completing the positioning and supporting work of the next internal mold frame by using the lifting trolley;
step six: the inner die frame finishes lining, when demolding is needed, the middle supporting leg at the bottom of the inner die frame is firstly retracted, the lifting trolley travels to the position below the inner die frame needing demolding, the hydraulic lifting supporting leg of the lifting trolley is lifted to enable the top of the lifting trolley to be connected with the bottom of the inner die frame, then the stand column lifting supporting leg of the inner die frame is retracted, the movable stand column is controlled to drive the side die plate to horizontally move towards the direction of the central line of the tunnel, and demolding of the side die plate is finished; and then the lifting trolley descends to lift the supporting legs by hydraulic pressure, so that the inner die frame finishes the demoulding of the top template.
EXAMPLE seven
On the basis of the first embodiment, further, the frame of the lifting trolley is provided with 4 hydraulic lifting legs 21-2 and two translational actuators 21-3, and two ends of each translational actuator 21-3 are respectively provided with one hydraulic lifting leg 21-2, see fig. 15 for specific details:
the translation actuator 21-3 comprises a guide sleeve 21-31, a guide core 21-32 and a translation oil cylinder 21-33, wherein the guide core 21-32 is slidably mounted in the guide sleeve 21-31, two ends of the guide core 21-32 are respectively connected with the hydraulic lifting support legs 21-2, the tail part of the translation oil cylinder 21-33 is connected to the guide sleeve 21-31, the action end of the translation oil cylinder 21-33 is connected to the hydraulic lifting support legs 21-2, and the frame is fixedly mounted on the guide sleeve 21-31;
when 4 hydraulic lifting support legs 21-2 of the lifting trolley rise, wheels of the lifting trolley are separated from the ground, the 4 hydraulic lifting support legs 21-2 are supported on the ground, then the guide sleeves 21-31 are driven by the translation oil cylinders 21-33 to move transversely along the guide cores 21-32, and then the guide sleeves 21-31 synchronously drive the frame to translate transversely.
Example eight
On the basis of the first embodiment, further, the frame of the lifting trolley is provided with four hydraulic lifting legs 21-2 and two translational actuators 21-3, and two ends of each translational actuator 21-3 are respectively provided with one hydraulic lifting leg 21-2, see fig. 16 for details:
the translational actuator 21-3 adopts a linear sliding table, the linear sliding table comprises a shell 21-3a, a lead screw 21-3g, a sliding table 21-3b and a driving motor 21-3f, two ends of the shell 21-3a are respectively connected with hydraulic lifting support legs 21-2, the lead screw 21-3g is horizontally arranged in the shell 21-3a through two bearing seats 21-3e, the driving motor 21-3f is fixedly arranged on the shell, an output shaft of the driving motor 21-3f is in transmission connection with the lead screw 21-3g, the frame 21-1 is fixed on the sliding table 21-3b, the sliding table 21-3b is arranged on the shell 21-3a in a sliding manner through a sliding rail 21-3d, and the sliding table 21-3b is connected with the lead screw 21-3g through a lead screw nut 21-3c at the bottom, when the driving motor 21-3f drives the screw 21-3g to rotate, the screw 21-3g drives the sliding table 21-3b to move transversely, and the sliding table 21-3b drives the frame 21-1 to move.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The invention has been described in an illustrative manner, and it is to be understood that any simple variations, modifications or other equivalent changes which can be made by one skilled in the art without departing from the spirit of the invention fall within the scope of the invention.
Claims (7)
1. A concrete pipe gallery internal mold positioning and demolding method is characterized in that: the device comprises an inner die frame and a lifting trolley for moving the inner die frame in place;
the internal mold frame comprises a portal frame, a movable upright post, upright post lifting support legs, a side mold plate, a top mold plate, a translation driver, a transmission assembly and a motor;
the movable upright posts are positioned at the two transverse sides of the portal frame, and the tops of the movable upright posts are slidably mounted with flange plates at the outer ends of the top door beams of the portal frame through translation sliding seats;
the side templates are arranged on the movable upright posts, and the top template is arranged on a top door beam of the door frame;
each movable upright post is connected with the portal frame on the inner side of the movable upright post through N translation drivers, N is more than or equal to 1, and the movable upright posts are driven to do translation motion through the translation drivers, so that the side templates are driven to do translation motion;
the motor is arranged on the gantry, the transmission assembly is used for realizing transmission linkage between the motor and the translation driver, after the motor is started, the motor drives the translation driver to act through the transmission assembly, and the translation driver further drives the movable upright post connected with the translation driver to do translation motion, so that the horizontal movement of the side template is realized;
the bottom of each movable stand column is provided with a stand column lifting support leg, and the height of the whole inner die frame is adjusted through the stand column lifting support leg;
the transmission assembly comprises a transmission shaft, transition chain wheels fixedly arranged in the middle of the transmission shaft, end chain wheels fixedly arranged at two ends of the transmission shaft and driving chain wheels arranged on a rotating shaft of the motor, the transmission shaft is transversely arranged on two side vertical supports of the gantry, the driving chain wheels on the rotating shaft of the motor are linked with the transition chain wheels on the transmission shaft through chains, the end chain wheels at two ends of the transmission shaft adopt double-row chain wheels, and each end chain wheel is respectively linked with the transmission chain wheels on two translation drivers at the same side of the transmission shaft in a one-to-one correspondence manner through two chains; when the motor is started, a driving chain wheel on a rotating shaft of the motor drives a transmission shaft to rotate through a transition chain wheel connected with the driving chain wheel, so that end chain wheels at two ends of the transmission shaft synchronously rotate, the end chain wheels drive a transmission chain wheel on a rotating nut of a translation driver to rotate through a chain, the transmission chain wheel can drive the rotating nut to rotate in a thrust bearing seat, a lead screw in the rotating nut is driven to perform ejection or contraction motion along the axial direction when the rotating nut rotates, and then the lead screw drives a movable upright post connected with the lead screw to perform translation motion, so that the horizontal movement of the side template is realized;
the translation driver comprises a screw rod, a rotating nut, a thrust bearing seat and a transmission chain wheel, the thrust bearing seat is fixedly installed on the gantry through a bolt, the rotating nut is installed in the thrust bearing seat, the screw rod is installed in the rotating nut, the outer end of the screw rod is connected with the movable upright post, the transmission chain wheel is fixedly sleeved on the rotating nut, when the transmission chain wheel is driven to rotate, the transmission chain wheel can drive the rotating nut to rotate in the thrust bearing seat, the screw rod in the rotating nut is driven to perform ejection or contraction motion along the axial direction when the rotating nut rotates, and then the screw rod drives the movable upright post connected with the screw rod to perform translation motion;
the lifting trolley is characterized in that a frame is provided with a travelling mechanism, hydraulic lifting support legs and a translation actuator, and wheels are separated from the ground by pushing and lifting the frame through the hydraulic lifting support legs; the whole frame is driven to transversely translate through the translation actuator, so that the frame drives the whole inner die frame to transversely move;
the internal mold frame can be longitudinally spliced into required sizes by a plurality of internal mold frame units to adapt to different construction requirements, and each internal mold frame unit comprises two gantries, four movable stand columns, eight translation drivers, a motor and a transmission shaft; the two gantries are longitudinally arranged at intervals from front to back, two movable upright columns are respectively arranged on two transverse sides of each gantry, the front movable upright column and the rear movable upright column on the same side are connected through a longitudinal beam and a cross brace, and each movable upright column is connected with the gantry part on the inner side of the movable upright column through two translation drivers; the motor and the transmission shaft are arranged on one portal, a driving chain wheel on a rotating shaft of the motor is linked with a transition chain wheel on the transmission shaft through a chain, end chain wheels at two ends of the transmission shaft adopt double-row chain wheels, and each end chain wheel is respectively linked with the transmission chain wheels on two translation drivers at the same side of the end chain wheel in a one-to-one correspondence mode through two chains; in addition, the transmission chain wheels of the four translation drivers on the door frames provided with the motors and the transmission shafts also adopt double-row chain wheels, and the double-row chain wheels are respectively correspondingly linked with the transmission chain wheels of the four translation drivers on the other door frame in a front-back one-to-one manner, so that the eight translation drivers synchronously link under the driving of one motor;
the bottom of the portal frame is also provided with a bottom middle supporting leg, the top of the bottom middle supporting leg is hinged on a bottom cross brace of the portal frame, and a driver for controlling the rising and falling states of the bottom middle supporting leg is arranged between the bottom middle supporting leg and the bottom cross brace of the portal frame; when the middle supporting leg at the bottom is in a retracted state, the middle supporting leg at the bottom is parallel to the cross brace at the bottom, so that the passing and the lifting work of the lifting trolley are not influenced; when the middle supporting leg at the bottom is in a falling state, the middle supporting leg at the bottom is vertical to the bottom cross brace, the middle supporting leg at the bottom is of a telescopic structure, and after the middle supporting leg at the bottom falls down, the extension length of the middle supporting leg at the bottom is controlled until the bottom end of the middle supporting leg at the bottom is contacted with the ground, so that the supporting effect is achieved;
during the construction, every piping lane be equipped with one lift the dolly can, according to the project needs, be equipped with the quantity of centre form die carrier, specifically include following step:
the method comprises the following steps: lifting a single inner mold frame by a lifting trolley, wherein the stand column lifting support leg and the movable stand column of the inner mold frame are both in a contraction state and the bottom middle support leg is in a retraction state, the lifting trolley conveys the inner mold frame to a steel bar binding waiting lining station, then the hydraulic lifting support leg of the lifting trolley pushes and lifts the frame to separate wheels from the ground, the whole frame is driven to transversely translate by a translation actuator, and the in-position posture of the inner mold frame is adjusted to complete primary positioning;
step two: then starting a motor of the inner mold frame, driving the movable upright post to translate outwards through a translation driver, and enabling the side mold plate to move to a specified construction position;
step three: then adjusting the upright lifting support legs of the inner mold frame to enable the upright lifting support legs to support the ground, thereby fixing the position of the inner mold frame;
step four: then the lifting trolley descends to lift the supporting legs to be separated from the inner mold frame in a hydraulic mode, the lifting trolley leaves the inner mold frame, and then the middle supporting legs at the bottom of the inner mold frame are placed down to support the ground;
step five: repeating the construction steps, and completing the positioning and supporting work of the next internal mold frame by using the lifting trolley;
step six: the inner die frame finishes lining, when demolding is needed, the middle supporting leg at the bottom of the inner die frame is firstly retracted, the lifting trolley travels to the position below the inner die frame needing demolding, the hydraulic lifting supporting leg of the lifting trolley is lifted to enable the top of the lifting trolley to be connected with the bottom of the inner die frame, then the stand column lifting supporting leg of the inner die frame is retracted, the movable stand column is controlled to drive the side die plate to horizontally move towards the direction of the central line of the tunnel, and demolding of the side die plate is finished; and then the lifting trolley descends to lift the supporting legs by hydraulic pressure, so that the inner die frame finishes the demoulding of the top template.
2. The concrete pipe gallery inner mold positioning and demolding method according to claim 1, wherein: the portal comprises a top door beam, bottom cross braces and side vertical braces, wherein the side vertical braces are fixedly arranged between the top door beam and the bottom cross braces, and two side vertical braces are respectively arranged on two sides of each bottom cross brace; and a middle vertical support is also arranged between the top door beam and the bottom cross support, and the middle vertical support and the bottom middle support leg in a falling state are in a collinear relationship.
3. The concrete pipe gallery inner mold positioning and demolding method according to claim 1, wherein: the specific mounting structure of the thrust bearing seat and the rotating nut of the translation driver is as follows: one end of the rotating nut is provided with a flange; the thrust bearing seat comprises an upper cover and a base, the upper cover and the base are in butt joint through bolts, an installation cavity is formed between the upper cover and the base, the flange of the rotary nut is installed in the installation cavity, a plurality of rings of balls or lubricating slideways are arranged between the upper surface of the flange of the rotary nut and the upper cover of the thrust bearing seat, a plurality of rings of balls or lubricating slideways are also arranged between the lower surface of the flange of the rotary nut and the base of the thrust bearing seat, and a plurality of rings of balls or lubricating slideways are also arranged between the outer side surface of the flange of the rotary nut and the upper cover of the thrust bearing seat.
4. The concrete pipe gallery inner mold positioning and demolding method according to claim 1, wherein: the structure of transmission shaft does: the transmission shaft comprises a first rotating shaft, a second rotating shaft, a first bearing seat, a second bearing seat and a middle connecting shaft, the first rotating shaft is installed on one of the side vertical supports of the door frame through the first bearing seat, the second rotating shaft is installed on the other side vertical support of the door frame through the second bearing seat, an end chain wheel is fixedly installed at the outer end of the first rotating shaft through a key, the inner end of the first rotating shaft is connected with one end of the middle connecting shaft through a flange, and the transition chain wheel is fixedly installed on the first rotating shaft; the outer end of the second rotating shaft is fixedly provided with the other end part chain wheel through a key, and the inner end of the second rotating shaft is in flange connection with the other end of the middle connecting shaft.
5. The concrete pipe gallery inner mold positioning and demolding method according to claim 1, wherein: the side templates comprise a straight template and a top corner template, the straight template is vertically arranged and fixed on the movable upright post through a back rib, and the top corner template is fixedly connected to the top of the straight template; the top template comprises a straight template and side corner templates, the straight template is horizontally arranged and fixed on a top door beam of the portal through a back rib, and the side corner templates are fixedly connected to the left end and the right end of the straight template; a support assembly is also provided between the top corner formwork of the sideform and the movable upright.
6. The concrete pipe gallery inner mold positioning and demolding method according to claim 1, wherein: four hydraulic lifting support legs and two translation actuators are arranged on a frame of the lifting trolley, and one hydraulic lifting support leg is arranged at each of two ends of each translation actuator.
7. The concrete pipe gallery inner mold positioning and demolding method according to claim 6, wherein: the translation actuator comprises a guide sleeve, a guide core and a translation oil cylinder, the guide core is slidably mounted in the guide sleeve, two ends of the guide core are respectively connected with the hydraulic lifting support legs, the tail part of the translation oil cylinder is connected with the guide sleeve, the action end of the translation oil cylinder is connected to the hydraulic lifting support legs, and the frame is fixedly mounted on the guide sleeve; when 4 hydraulic lifting support legs of the lifting trolley rise, wheels of the lifting trolley are separated from the ground, the 4 hydraulic lifting support legs are supported on the ground, then the guide sleeve is driven by the translation oil cylinder to move transversely along the guide core, and the guide sleeve synchronously drives the frame to translate transversely.
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| CN114439222B (en) * | 2022-03-03 | 2023-09-01 | 中国建筑第八工程局有限公司 | Construction device for concrete cylinder |
| CN114991201B (en) * | 2022-08-04 | 2022-10-04 | 中国能源建设集团山西电力建设有限公司 | Butt joint and foot-covering pouring method for support stand column and base of photovoltaic power generation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1473658A (en) * | 1973-10-23 | 1977-05-18 | Acrow Ltd | Concrete formwork |
| KR100402436B1 (en) * | 2001-05-23 | 2003-10-22 | 주식회사유신코퍼레이션 | The method for carrying out of underground structure object using a fiberglass reinforced plastics and a hydraulic jack |
| KR20090040712A (en) * | 2007-10-22 | 2009-04-27 | 보림기계공업 주식회사 | Steel materials mold for underground box construction formation |
| CN103397598A (en) * | 2013-08-09 | 2013-11-20 | 中铁科工集团有限公司 | Supporting device for girder erection at tunnel portal and in tunnel and application thereof |
| CN207063988U (en) * | 2017-02-22 | 2018-03-02 | 南通铁军机械有限公司 | A kind of automatic telescopic feed screw apparatus for working jumbo for tunnel lining |
| CN207212365U (en) * | 2017-09-22 | 2018-04-10 | 中铁十二局集团有限公司 | A kind of wall arch is separable can Monolithic lining chassis |
| CN107956487B (en) * | 2017-12-05 | 2023-06-23 | 中铁四局集团有限公司 | Automatic inner formwork equipment suitable for pipe gallery construction and construction method thereof |
| CN107905819A (en) * | 2017-12-21 | 2018-04-13 | 湖南五新隧道智能装备股份有限公司 | A kind of template bearing-type lining trolley |
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