CN110080803B - Self-walking steering type two-lining template trolley and walking steering method thereof - Google Patents
Self-walking steering type two-lining template trolley and walking steering method thereof Download PDFInfo
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- CN110080803B CN110080803B CN201910284074.5A CN201910284074A CN110080803B CN 110080803 B CN110080803 B CN 110080803B CN 201910284074 A CN201910284074 A CN 201910284074A CN 110080803 B CN110080803 B CN 110080803B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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Abstract
The invention belongs to a self-walking steering type two-lining template trolley and a walking steering method thereof. The two-lining template trolley comprises a matching movable supporting device, a traveling device and a transverse moving device. The method comprises a step of forward straight movement or retreating of the two-lining template trolley, a step of transverse movement and steering in the tunnel, wherein the lengths of the four bearing bases and the lower end surface of the bottom beam are prolonged, so that the lower end surface of the bottom beam is lifted to simultaneously lift the front walking column, the rear walking column and the lengthened column seat or the steering connecting seat thereof until the front walking column and the rear walking column leave the ground, and the front walking column and the lengthened column seat or the steering connecting seat thereof are lifted to land after moving forwards by a step distance and then hydraulically move the two-lining template trolley. The invention can solve the defects of the prior two-lining template trolley by using a simple structure and has the advantages of simple structure, convenient and flexible walking and transverse movement, time and labor saving, low cost, good construction quality, good safety and good use effect.
Description
Technical Field
The invention belongs to a self-walking steering type two-lining template trolley and a walking steering method thereof.
Background
When the secondary lining of the tunnel construction is carried out, a secondary lining template trolley is required to provide an inner side template and form a seal with primary support to carry out concrete pouring. The traditional two-lining template trolley adopts a rail type traveling system, before the trolley travels each time, the rails need to be laid in the traveling direction of the trolley, and after the trolley travels to a laying position, the previous group of rails is removed to prepare for laying the next group.
The traditional rail type two-lining template trolley consumes long time and has low efficiency when walking. At least 8 persons are needed to cooperate in the walking process. The track laying process needs the guidance of measuring personnel and the working procedure is complicated. Meanwhile, the risk of derailment and sliding rail exists in the construction process. On the other hand, the traditional two-lining template trolley has the defects of overlarge transverse moving radius (including transverse integral moving or steering) in the construction of a two-lining of a small-radius tunnel, complex process, time consumption and labor consumption.
Disclosure of Invention
The invention aims to design a self-walking steering type two-lining template trolley and a walking steering method thereof, which can solve the defects of the existing two-lining template trolley by using a simple structure and have the advantages of simple structure, convenient and flexible walking and transverse movement, time and labor saving, low cost, good construction quality, good safety and good use effect.
Therefore, the self-walking steering type two-lining template trolley comprises a bottom beam, a portal frame, a template hydraulic rod, an upper top frame, a top template and a side template, wherein:
the supporting device is moved in a matching way: the supporting device for the second lining template trolley is matched with the walking device to move the second lining template trolley. The lower ends of a plurality of vertical support columns forming two sides of the portal frame are fixed side by side at intervals on the upper end surface of the middle part of two bottom beams arranged side by side at intervals, and the upper ends of the vertical support columns are fixed with the two sides of the upper top frame into a whole. Two ends of the bottom beams on two sides are respectively and vertically provided with a bottom beam cylinder seat. Four bottom beam steel columns are respectively matched in the four bottom beam cylinder seats in a sliding mode. The lower end of each bottom beam steel column is connected with the upper end of a bearing base positioned at the lower end of the bottom beam cylinder base into a whole through a base connecting flange plate, the upper end of each bottom beam steel column is connected with the lower end of a vertical hydraulic rod positioned at the upper end of the bottom beam cylinder base into a whole, and the upper end of each vertical hydraulic cylinder is fixed on a vertical supporting base of a vertical supporting column corresponding to the upper end of the bottom beam cylinder base.
A traveling device: for the straight movement of the two-lined formwork trolley. The walking device is positioned in the middle of the lower end of the bottom beam between the bottom beam cylinder seats and consists of a front walking column, a rear walking column, a connecting rod, a lengthened column seat, a walking hydraulic cylinder and a walking hydraulic rod. The bottom beam is an I-shaped steel beam. Two ends of the connecting rod are respectively connected with the middle parts of the front side surface and the rear side surface of the corresponding front walking column and the rear walking column into a whole through the rod connecting flange. The upper ends of the front and rear walking columns are provided with grooves. The convex rail edges at the two sides of the lower end of the bottom beam are positioned in the groove. The convex rails on two sides in the groove are respectively provided with two upper wheel rollers at intervals in the front and at the back along the upper end surface, the central part of each upper wheel roller is internally provided with an upper shaft rod, and the outer side end of each upper shaft rod is fixedly connected with the side edge of the groove at the corresponding part. Two lower wheel rollers are arranged in the front and at the back of the groove of the lower end surface of the bottom beam at intervals, a lower shaft lever is arranged in the central part of each lower wheel roller, and two side ends of each lower shaft lever are fixedly connected with the side edges of the groove of the corresponding part. The middle part of the lower end surface of the bottom beam is fixed with a beam bottom connecting lug.
The bottom of the walking hydraulic cylinder is coupled with the rear walking column through a column coupling lug and a bolt shaft which are fixed in the middle of the front side surface of the rear walking column, and the front end of a walking hydraulic rod of the ejection walking hydraulic cylinder is coupled with a beam bottom coupling lug; or the bottom of the walking hydraulic cylinder is coupled with the front walking column through a column coupling lug and a bolt shaft which are fixed in the middle of the rear side surface of the front walking column, and the front end of a walking hydraulic rod of the ejection walking hydraulic cylinder is coupled with a beam bottom coupling lug.
The upper end of the lengthened column base is provided with a column base connecting flange. The lower ends of the front travelling column and the rear travelling column are provided with travelling column connecting flange plates, and the upper end of each lengthened column seat can be butted with the lower ends of the front travelling column and the rear travelling column through the column seat connecting flange plates and the travelling column connecting flange plates.
A transverse moving device: for lateral movement and steering of the two-lined template trolley. The transverse moving device consists of a top moving device and a steering connecting seat. The top moving device is characterized in that two ends of the outer side edge of the bottom beam are respectively provided with a top moving column. The rear end of the jack-moving hydraulic cylinder is connected with the front end of the jack-moving column through a jack-moving hydraulic cylinder shaft, and the front end of the jack-moving hydraulic rod is provided with a top plate. The steering connecting seat is provided with a connecting seat connecting flange at the upper end of the steering connecting seat. The lower ends of the front travelling column and the rear travelling column are provided with travelling column connecting flange plates, and the upper end of each steering connecting seat can be butted with the lower ends of the front travelling column and the rear travelling column through the connecting seat connecting flange plates and the travelling column connecting flange plates. The lower end of the steering connecting seat is provided with a rolling ball seat, a plurality of rolling ball grooves are densely distributed in the lower part of the rolling ball seat at intervals, and the upper parts of a plurality of rolling balls are sealed in the rolling ball grooves by a ball sealing plate with holes.
The length ratio of the connecting rod to the bottom beam is 6-7: 12. The distance between the front and rear walking columns and the bearing base at the corresponding side is 1.6-2 m. The upper end of the bearing base is supported at the lower end of the corresponding bottom beam, and the height of the bearing base is greater than the height of the front travelling column and the height of the rear travelling column which are positioned at the lower end of the bottom beam. The sum of the heights of a front or rear walking column and a lengthened column seat or a steering connecting seat at the lower end of the bottom beam is greater than the height of the bearing base. The moving range of the front or rear walking column along the lower end of the bottom beam is 1.5-1.6 m.
A walking steering method of a self-walking steering type two-lining template trolley comprises the following steps:
(1) according to the design, two ends of bottom beams on two sides of a two-lining template trolley are respectively and vertically fixed with bottom beam cylinder seats, four bottom beam steel columns are respectively and slidably matched in the four bottom beam cylinder seats, and the lower ends of the bottom beam steel columns are respectively connected with the upper end of a bearing base into a whole through base connecting flange plates. The upper end of each bottom beam steel column is connected with the lower end of a vertical hydraulic rod positioned at the upper end of the bottom beam cylinder base into a whole. The upper ends of the vertical hydraulic cylinders are respectively fixed on the vertical supporting seats corresponding to the upper ends of the bottom beam cylinder seats.
And (3) mounting a walking device in the middle of the lower end of the bottom beam between the same bottom beam cylinder bases, and preparing the lengthened column base and the steering connecting base. The outer sides of the two ends of the bottom beam are provided with a top moving column, the rear end of the top moving hydraulic cylinder is connected with the front end of the top moving column through a top moving hydraulic cylinder shaft, and the front end of the top moving hydraulic rod is provided with a top plate.
(2) The fixing bolt, washer and fixing nut are prepared.
(3) When the self-walking steering type two-lining formwork trolley is used for carrying out two-lining formwork construction and concrete pouring in a tunnel, the vertical hydraulic rod retracts into the vertical hydraulic cylinder, the bottom beam cylinder bases at the two ends of the bottom beam are respectively supported on the bearing bases at the lower end of the bottom beam cylinder base, and the front walking columns and the rear walking columns are suspended.
(4) The self-walking steering type two-lining template trolley moves in the tunnel in a straight way: comprises a two-lining template trolley, wherein the two-lining template trolley is straight forwards and is straight backwards.
The forward straight-moving step of the second lining template trolley comprises the following steps:
(a) and (4) completing demoulding of the top template and the side template, and separating the top template and the side template of the two-lining template trolley from the tunnel two-lining concrete pouring layer.
The bottom of the walking hydraulic cylinder is coupled with the rear walking column through a column coupling lug and a bolt shaft which are fixed in the middle of the front side surface of the rear walking column, and the front end of a walking hydraulic rod of the ejection walking hydraulic cylinder is coupled with a beam bottom coupling lug.
(b) Starting the four vertical hydraulic cylinders to synchronously eject the four vertical hydraulic rods, driving the four bottom beam steel columns to move downwards along the corresponding bottom beam cylinder seats, so that the lengths of the upper end surfaces of the four bearing bases and the lower end surfaces of the bottom beams are prolonged, lifting the front walking columns and the rear walking columns simultaneously until the front walking columns and the rear walking columns leave the ground for a certain height, and locking the four vertical hydraulic cylinders;
(c) the lower ends of the front travelling column and the rear travelling column are additionally connected with a lengthened column base.
(d) And starting the traveling hydraulic cylinders at the lower ends of the two bottom beams to enable the traveling hydraulic rods to retract into the traveling hydraulic cylinders, and simultaneously driving the front and rear traveling columns with the lengthened column bases to synchronously move along the convex rails at the lower ends of the bottom beams in the advancing direction.
(e) And stopping the running of the walking hydraulic cylinder after the front walking column and the rear walking column synchronously move to finish one step. The two-lining template trolley is integrally fixed, four vertical hydraulic cylinders are started to gradually take the vertical hydraulic rods into the vertical hydraulic cylinders, so that each bearing base is lifted upwards, after the lengthening column at the lower end of the front walking column and the rear walking column is located on the ground to bear the weight, the vertical hydraulic cylinders are stopped to operate, and each bearing base is suspended.
(f) And starting the walking hydraulic cylinder, and ejecting the walking hydraulic rod out of the walking hydraulic cylinder so as to drive the two bottom beams and the integral self-walking steering type two-lining template trolley to move towards the advancing direction by taking the upper and lower wheel rollers in the grooves of the front and rear walking columns as rolling shafts to finish a step.
(g) After the self-walking steering type two-lining template trolley walks by one step distance, the four vertical hydraulic cylinders are started to enable the four vertical hydraulic rods to be synchronously ejected out, so that the four bottom beam steel columns are driven to move downwards along the corresponding bottom beam cylinder bases, the lengths of the four bearing bases and the lower end faces of the bottom beams are prolonged, the lower end faces of the bottom beams ascend to enable the front and rear walking columns and the lengthened column bases to be lifted simultaneously until the four vertical hydraulic cylinders are separated from the ground, and the four vertical hydraulic cylinders are locked.
(h) And (d), repeating the steps (e), (f) and (g) in sequence until the self-walking steering type second-lining template trolley finishes the straight movement in the tunnel.
The backward straight-back step of the second lining template trolley comprises the following steps:
(a) and (4) completing demoulding of the top template and the side template, and separating the top template and the side template of the two-lining template trolley from the tunnel two-lining concrete pouring layer.
The bottom of the walking hydraulic cylinder is separated from the column connecting lug in the middle of the rear side face of the rear walking column, the bottom of the walking hydraulic cylinder is connected with the front walking column through the column connecting lug fixed in the middle of the rear side face of the front walking column and a bolt shaft, and the front end of the walking hydraulic rod of the ejection walking hydraulic cylinder is connected with the beam bottom connecting lug in a shaft mode.
The rest steps are the same as the forward straight-going step of the second lining template trolley except for the reverse direction.
(5) The self-walking steering type two-lining template trolley moves and turns in the tunnel in the transverse direction: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
(a) and (4) completing demoulding of the top template and the side template, and separating the top template and the side template of the two-lining template trolley from the tunnel two-lining concrete pouring layer.
(b) And starting the four vertical hydraulic cylinders to synchronously eject the four vertical hydraulic rods, and driving the four bottom beam steel columns to move downwards along the corresponding bottom beam cylinder seats, so that the lengths of the four bearing bases and the lower end surfaces of the bottom beams are simultaneously prolonged, and the lower end surfaces of the bottom beams rise to simultaneously lift the front and rear walking columns until the front and rear walking columns leave the ground.
(c) The lower ends of the front and rear walking columns are additionally connected with a steering connecting seat.
(d) Starting the traveling hydraulic cylinders at the lower ends of the two bottom beams to enable the traveling hydraulic rods to retract into the traveling hydraulic cylinders, and simultaneously driving the front and rear traveling columns with the steering connecting seats to synchronously move along the convex rails at the lower ends of the bottom beams in the forward direction;
(e) when the front and rear walking columns synchronously move to finish a step distance, the operation of the walking hydraulic cylinder is stopped, the two-lining template trolley is integrally fixed, the vertical hydraulic rod is gradually taken into the vertical hydraulic cylinder, each bearing base is lifted upwards to wait for the steering connection base at the lower ends of the front and rear walking columns to fall on the ground to bear the weight, the operation of the vertical hydraulic cylinder is stopped, and each bearing base is suspended.
(f) And starting the walking hydraulic cylinder, ejecting the walking hydraulic rod out of the walking hydraulic cylinder, and driving the two bottom beams and the integral self-walking steering type two-lining template trolley to move towards the advancing direction by taking the upper and lower wheel rollers in the grooves of the front and rear walking columns as rolling shafts to finish a step.
(g) And (3) transverse movement and steering of the self-walking steering type two-lining template trolley:
wherein the steering is: the top plate at the front end of a top moving hydraulic rod on a top moving column parallel to the opposite bottom beam in the opposite direction opposite to the rotating direction is placed on the opposite tunnel wall or the tunnel ground in the opposite direction, a top moving hydraulic cylinder is started to push the top moving hydraulic rod out, the top moving hydraulic rod drives the bottom beam and the two-lining template trolley to move to the rotating direction under the cooperation of a plurality of rolling balls at the lower end of the steering connecting seat through the top moving column, and the self-walking steering type two-lining template trolley is steered;
or a top plate at the front end of a top moving hydraulic rod on a top moving column parallel to the opposite bottom beam in the opposite direction is arranged on the opposite tunnel wall or the tunnel ground in the opposite direction, and a top plate at the front end of a top moving hydraulic rod on a top moving column on the bottom beam at the rear end and at the same side with the rotating direction is arranged on the tunnel wall at the same side at the rear end or the tunnel ground, and simultaneously two top moving hydraulic cylinders are started to eject the two top moving hydraulic rods, so that the two top moving hydraulic rods drive the bottom beam and the two lining template trolleys to move towards the rotating direction under the matching action of a plurality of rolling balls at the lower end of the steering connecting seat through the top moving columns.
Wherein the lateral movement is: the top plates at the front ends of the two jacking hydraulic rods on the two jacking columns at the two ends of the opposite bottom beam opposite to the transverse moving direction are respectively arranged on the opposite tunnel wall or the tunnel ground, two jacking hydraulic cylinders are started to simultaneously push out the two jacking hydraulic rods, and the two jacking hydraulic rods drive the bottom beam and the two lining template trolleys to integrally move towards the transverse moving direction under the cooperation of a plurality of rolling balls at the lower end of the steering connecting seat through the jacking columns, so that the transverse integral movement of the self-walking steering type two lining template trolleys is completed.
(6) After the self-walking steering type two-lining formwork trolley moves in place in a tunnel, four vertical hydraulic cylinders are started to enable four vertical hydraulic rods to be synchronously ejected out, four bottom beam steel columns are driven to move downwards along corresponding bottom beam cylinder bases, the lengths of the four bearing bases and the lower end faces of the bottom beams are simultaneously prolonged, the lower end faces of the bottom beams rise to enable the front and rear walking columns and the lengthened column bases or the steering connection bases thereof to be lifted simultaneously until the four bottom beam steel columns leave the ground, the four vertical hydraulic cylinders are locked to operate, the lengthened column bases or the steering connection bases located at the lower ends of the front and rear walking columns are dismounted, the four vertical hydraulic cylinders are started again to enable the four vertical hydraulic rods to be synchronously retracted into the vertical hydraulic cylinders, the bottom beam cylinder bases at the two ends of the bottom beams are respectively supported on the bearing bases at the lower ends of the bottom beam cylinder bases, the front and rear.
The lower end surface of the bottom beam rises to enable the front and rear walking columns to be lifted simultaneously until the height of the front and rear walking columns away from the ground is larger than the height of the lengthened column seat or the steering connecting seat. The lower end of the steering connecting seat is provided with an iron plate with the thickness of 1-4 cm and the area larger than the moving length of the steering connecting seat. The steering connecting seat can replace a lengthened column seat.
The above method and apparatus achieve the objects of the present invention.
The invention can solve the defects of the prior two-lining template trolley by using a simple structure and has the advantages of simple structure, convenient and flexible walking and transverse movement, time and labor saving, low cost, good construction quality, good safety and good use effect.
The invention does not need to circularly lay a track, can move forwards and backwards at any time, has no limit on the moving distance, sometimes needs to withdraw the trolley out of the hole for mechanical position adjustment because the clearance of the small-radius tunnel is limited, and has the characteristic of moving forwards and backwards at any time, thereby having great advantage. The transverse moving and steering of the trolley in the tunnel are very convenient and flexible, the transverse moving of the trolley in the tunnel can be realized, the integral adjustment of the centering position of each trolley and the position of a template is facilitated, the steering radius is small (20-30 m), and the integral movement of the trolley is facilitated.
Compared with the traditional rail trolley, the traveling speed of the invention is greatly improved, and the traveling speed of the invention can be 15m per hour, which is 3 times of the speed of the traditional rail trolley. The trolley is easy to operate when walking, the trolley can walk by only 2 persons, and the needed labor is one fourth of that of the traditional rail trolley. Because of need not to receive the track restriction, reduced the operation cost of platform truck by a wide margin, the platform truck walks and does not have the risk of derailing and slide rail in the positioning process.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic side view of the present invention.
Fig. 3 is a partially enlarged side view of the present invention.
Fig. 4 is a partial structural view of the bottom beam and the rear traveling column of the present invention.
Fig. 5 is a schematic structural view of the steering mount of the present invention.
Fig. 6 is a schematic bottom structure view of the steering seat of the present invention.
Fig. 7 is a schematic view of the state of the present invention at the time of steering.
Detailed Description
As shown in fig. 1 to 6, a self-propelled steering type two-lining formwork trolley comprises a bottom beam 9, a gantry 4, a formwork hydraulic rod 5, an upper top frame 7, a top formwork 1 and a side formwork 3, wherein:
the supporting device is moved in a matching way: the supporting device for the second lining template trolley is matched with the walking device to move the second lining template trolley. The lower ends of a plurality of vertical support columns 11 forming two sides of the portal frame are fixed side by side at intervals on the upper end surfaces of the middle parts of two bottom beams arranged side by side at intervals, and the upper ends of the vertical support columns are fixed with the two sides of the upper top frame into a whole. The top template is positioned at the upper end of the upper top frame, and the side templates are positioned on two side surfaces of the door frame through template hydraulic rods. When the self-walking steering type second lining formwork platform is used, the self-walking steering type second lining formwork platform is arranged on the tunnel ground 10, and a second cast concrete space is formed between the formworks on the two sides and the top formwork and the tunnel wall 2. The invention is the same as the traditional two-lining template trolley in the structures of the portal, the template hydraulic rod, the upper top frame, the top template and the side template, so the description is not repeated.
Two ends of the bottom beams on two sides are respectively vertically provided with a bottom beam cylinder seat 16. Four bottom beam steel columns 15 are respectively matched in the four bottom beam cylinder seats in a sliding mode. The lower end of each bottom beam steel column 17 is connected with the upper end of a bearing base 25 positioned at the lower end of the bottom beam cylinder base into a whole through a base connecting flange 26, a connecting flange butted with the base connecting flange can be fixed at the upper end of the bearing base, and two connecting flanges are fixedly connected through bolts and nuts, so that the lower end of the bottom beam steel column and the upper end of the bearing base are fixed into a whole structure.
The upper end of each bottom beam steel column is respectively connected with the lower end of a vertical hydraulic rod 15 positioned at the upper end of the bottom beam cylinder seat into a whole, and the upper end of each vertical hydraulic cylinder 14 is respectively fixed on a vertical supporting seat 13 corresponding to a vertical supporting column at the upper end of the bottom beam cylinder seat. The fixing structure is the same as above, so the description is not repeated.
A traveling device: for the straight movement of the two-lined formwork trolley. The walking device is positioned in the middle of the lower end of the bottom beam between the same bottom beam cylinder bases. The walking device is composed of a front walking column 24, a rear walking column 18, a connecting rod 23, a lengthened column base 6, a walking hydraulic cylinder 20 and a walking hydraulic rod 21. The bottom beam is an I-shaped steel beam. The two ends of the connecting rod are respectively connected with the middle parts of the front and rear side surfaces of the corresponding front and rear walking columns into a whole through a rod connecting flange 29 and a fixing bolt 28. The two ends of the connecting rod are respectively fixed (welded) with the rod connecting flange, and the two ends of the connecting rod are connected with the middle parts of the front side and the rear side of the corresponding front walking column and the rear walking column into a whole by penetrating the screw holes arranged on the periphery of the rod connecting flange by the fixing bolts.
The upper ends of the front and rear walking columns are provided with grooves 32. The raised rail edges 91 on both sides of the lower end of the bottom beam are positioned in the grooves. The convex rails on two sides in the groove are respectively provided with two upper rollers 31 at the front and the back along the upper end surface at intervals, the central part of each upper roller is internally provided with an upper shaft lever 36, and the outer side end of each upper shaft lever is fixedly connected with the side edge of the groove at the corresponding part. Two lower rollers 37 are arranged in the groove of the lower end surface of the bottom beam at intervals in the front and at the back, a lower shaft lever 27 is arranged in the center of each lower roller, and two side ends of each lower shaft lever are fixedly connected with the side edges of the groove of the corresponding part. The middle part of the lower end surface of the bottom beam is fixed with a beam bottom connecting lug 22.
The bottom of the walking hydraulic cylinder is coupled with the rear walking column through a column coupling lug 19 and a bolt shaft which are fixed in the middle of the front side surface of the rear walking column, and the front end of a walking hydraulic rod of the ejection walking hydraulic cylinder is coupled with a beam bottom coupling lug; or the bottom of the walking hydraulic cylinder is coupled with the front walking column through a column coupling lug and a bolt shaft which are fixed in the middle of the rear side surface of the front walking column, and the front end of a walking hydraulic rod of the ejection walking hydraulic cylinder is coupled with a beam bottom coupling lug. The rear end of the walking hydraulic cylinder can be provided with a lug with a shaft hole, the lug with the shaft hole is positioned in a column connecting lug with the shaft hole, and a bolt shaft penetrates through the two shaft holes to realize the shaft connection of the bottom of the walking hydraulic cylinder and the front or rear walking column. The front end of the walking hydraulic rod of the ejection walking hydraulic cylinder is coupled with the beam bottom connecting lug by the method.
The upper end of the lengthened column base 6 is provided with a column base connecting flange plate 62. The lower ends of the front and rear travelling columns are provided with travelling column connecting flange discs 30, and the upper ends of the lengthened column bases can be butted with the lower ends of the front and rear travelling columns through the column base connecting flange discs and the travelling column connecting flange discs. Bolt holes 61 on the periphery of the column base connecting flange plate and the walking column connecting flange plate are fixedly penetrated by bolts and nuts, so that the lower ends of the front walking column and the rear walking column and the upper ends of the lengthened column bases are fixed into an integral structure.
A transverse moving device: for lateral movement and steering of the two-lined template trolley. The lateral moving means is constituted by a jack and a steering shoe 69. The top moving device is characterized in that two ends of the outer side edge of the bottom beam are respectively outwards fixed with a top moving column 12. The rear end of the jack-moving hydraulic cylinder 8 is connected with the front end of the jack-moving column through a jack-moving hydraulic cylinder shaft 35. The front end of the top moving hydraulic rod 33 is provided with a top plate 34, and the top plate is used for facilitating the top holding of the top moving hydraulic rod and the tunnel wall at the corresponding side end of the top moving column or the ground at the side when the top plate moves transversely; when the device is not used, the top moving hydraulic cylinder is upwards turned around the axial direction of the top moving hydraulic cylinder and is arranged on the bottom beam at the upper end of the top moving column, so that construction is not influenced.
The steering connecting seat 63 is: the upper end of the steering connecting seat is provided with a connecting seat connecting flange 68. The lower ends of the front travelling column and the rear travelling column are provided with travelling column connecting flange plates, and the upper end of each steering connecting seat can be butted with the lower ends of the front travelling column and the rear travelling column through the connecting seat connecting flange plates and the travelling column connecting flange plates. Bolt holes are fixedly penetrated through bolt holes positioned at the periphery of the connecting flange plate of the connecting and fixing seat and the walking column connecting flange plate by bolts and nuts, so that the lower ends of the front walking column and the rear walking column are fixed with the upper ends of the steering connecting seats into an integral structure. The lower end of the steering joint seat is provided with a rolling ball seat 65, a plurality of rolling ball grooves 67 are densely distributed in the lower part of the rolling ball seat at intervals, and the upper parts of a plurality of rolling balls 64 are sealed in the rolling ball grooves by a perforated ball sealing plate 66, so that the rolling balls on the lower end surface of the steering joint seat can drive the steering joint seat to roll in any direction. Screw holes 69 may be provided around the lower end of the holed ball-sealing plate, and bolts may be passed through the screw holes to fix the holed ball-sealing plate and the lower end of the rolling ball seat as a whole.
The length ratio of the connecting rod to the bottom beam is 6-7: 12. The distance between the front and rear walking columns and the bearing base at the corresponding side is 1.6-2 m.
The upper end of the bearing base is supported at the lower end of the corresponding bottom beam, and the height of the bearing base is greater than the height of the front travelling column and the height of the rear travelling column which are positioned at the lower end of the bottom beam. So that the bearing base can bear the pressure of the whole platform when the concrete is poured.
The sum of the heights of a front or rear walking column and a lengthened column seat or a steering connecting seat at the lower end of the bottom beam is greater than the height of the bearing base. The moving range of the front or rear walking column along the lower end of the bottom beam is 1.5-1.6 m.
A walking steering method of a self-walking steering type two-lining template trolley comprises the following steps:
(1) according to the design, two ends of bottom beams on two sides of a two-lining template trolley are respectively and vertically fixed with bottom beam cylinder seats, four bottom beam steel columns are respectively and slidably matched in the four bottom beam cylinder seats, and the lower ends of the bottom beam steel columns are respectively connected with the upper end of a bearing base into a whole through base connecting flange plates. The upper end of each bottom beam steel column is connected with the lower end of a vertical hydraulic rod positioned at the upper end of the bottom beam cylinder base into a whole. The upper ends of the vertical hydraulic cylinders are respectively fixed on the vertical supporting seats corresponding to the upper ends of the bottom beam cylinder seats.
And (3) mounting a walking device in the middle of the lower end of the bottom beam between the same bottom beam cylinder bases, and preparing the lengthened column base and the steering connecting base. The outer sides of the two ends of the bottom beam are provided with a top moving column, the rear end of the top moving hydraulic cylinder is connected with the front end of the top moving column through a top moving hydraulic cylinder shaft, and the front end of the top moving hydraulic rod is provided with a top plate.
(2) And preparing a fixing bolt, a gasket, a fixing nut, a connecting tool and the like.
(3) When the self-walking steering type two-lining formwork trolley is used for carrying out two-lining formwork construction and concrete pouring in a tunnel, the vertical hydraulic rod retracts into the vertical hydraulic cylinder, the bottom beam cylinder bases at the two ends of the bottom beam are respectively supported on the bearing bases at the lower end of the bottom beam cylinder base, and the front walking columns and the rear walking columns are suspended. The hydraulic cylinders provide power for the operation of the hydraulic rods, the power of the hydraulic cylinders is provided by the self-contained hydraulic equipment of the two-lining template trolley, and the two-lining template trolley is of a traditional structure, so the description is not repeated.
(4) The self-walking steering type two-lining template trolley moves in the tunnel in a straight way: comprises a two-lining template trolley, wherein the two-lining template trolley is straight forwards and is straight backwards.
As shown in fig. 2: the forward straight-moving step of the second lining template trolley comprises the following steps:
(a) the top template and the side template are demoulded, so that the top template and the side template of the two-lining template trolley are separated from the tunnel two-lining concrete pouring layer.
The bottom of the walking hydraulic cylinder is coupled with the rear walking column through a column coupling lug and a bolt shaft which are fixed in the middle of the front side surface of the rear walking column 18, and the front end of a walking hydraulic rod (the walking hydraulic rod pushes the walking hydraulic cylinder to the maximum) of the ejection walking hydraulic cylinder is coupled with a beam bottom coupling lug.
(b) And starting the four vertical hydraulic cylinders to synchronously eject the four vertical hydraulic rods, driving the four bottom beam steel columns to move downwards along the corresponding bottom beam cylinder seats, so that the lengths of the upper end surfaces of the four bearing bases and the lower end surfaces of the bottom beams are prolonged, and the lower end surfaces of the bottom beams rise (so that the two-lining-template trolley integrally rises) to simultaneously lift the front and rear walking columns until the front and rear walking columns leave the ground for a certain height, and locking the four vertical hydraulic cylinders.
(c) The lower ends of the front travelling column and the rear travelling column are additionally connected with a lengthened column base.
(d) And starting the traveling hydraulic cylinders at the lower ends of the two bottom beams to enable the traveling hydraulic rods to retract into the traveling hydraulic cylinders, and simultaneously driving the front and rear traveling columns with the lengthened column bases to synchronously move along the convex rails at the lower ends of the bottom beams in the advancing direction.
(e) And stopping the running of the walking hydraulic cylinder after the front walking column and the rear walking column synchronously move to finish one step. The two-lining template trolley is integrally fixed, four vertical hydraulic cylinders are started to gradually take the vertical hydraulic rods into the vertical hydraulic cylinders, so that each bearing base is lifted upwards, after the lengthening column at the lower end of the front walking column and the rear walking column is located on the ground to bear the weight, the vertical hydraulic cylinders are stopped to operate, and each bearing base is suspended.
(f) And starting the walking hydraulic cylinder, and ejecting the walking hydraulic rod out of the walking hydraulic cylinder so as to drive the two bottom beams and the integral self-walking steering type two-lining template trolley to move towards the advancing direction by taking the upper and lower wheel rollers in the grooves of the front and rear walking columns as rolling shafts to finish a step.
(g) After the self-walking steering type second lining template trolley walks for a step distance, the distance is about 1.5m to 1.6 m. And starting the four vertical hydraulic cylinders to synchronously eject the four vertical hydraulic rods, so as to drive the four bottom beam steel columns to move downwards along the corresponding bottom beam cylinder seats, thereby prolonging the lengths of the four bearing bases and the lower end faces of the bottom beams, and lifting the lower end faces of the bottom beams (so as to integrally lift the two lining template trolleys) to simultaneously lift the front and rear walking columns and the lengthened column seats thereof until the front and rear walking columns and the lengthened column seats thereof leave the ground, and locking the four vertical hydraulic cylinders.
(h) And (d), repeating the steps (e), (f) and (g) in sequence until the self-walking steering type second-lining template trolley finishes the straight movement in the tunnel.
The backward straight-back step of the second lining template trolley comprises the following steps:
(a) and (4) completing demoulding of the top template and the side template, and separating the top template and the side template of the two-lining template trolley from the tunnel two-lining concrete pouring layer.
The bottom of the walking hydraulic cylinder is separated from the column connecting lug in the middle of the rear side face of the rear walking column, the bottom of the walking hydraulic cylinder is connected with the front walking column through the column connecting lug fixed in the middle of the rear side face of the front walking column and a bolt shaft, and the front end of the walking hydraulic rod of the ejection walking hydraulic cylinder is connected with the beam bottom connecting lug in a shaft mode.
The rest steps are the same as the forward straight-going step of the second lining template trolley except for the reverse direction.
(5) The self-walking steering type two-lining template trolley moves and turns in the tunnel in the transverse direction: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
(a) and (4) completing demoulding of the top template and the side template, and separating the top template and the side template of the two-lining template trolley from the tunnel two-lining concrete pouring layer.
(b) And starting the four vertical hydraulic cylinders to synchronously eject the four vertical hydraulic rods, and driving the four bottom beam steel columns to move downwards along the corresponding bottom beam cylinder seats, so that the lengths of the four bearing bases and the lower end surfaces of the bottom beams are simultaneously prolonged, and the lower end surfaces of the bottom beams rise to simultaneously lift the front and rear walking columns until the front and rear walking columns leave the ground.
(c) The lower ends of the front and rear walking columns are additionally connected with a steering connecting seat.
(d) Starting the traveling hydraulic cylinders at the lower ends of the two bottom beams to enable the traveling hydraulic rods to retract into the traveling hydraulic cylinders, and simultaneously driving the front and rear traveling columns with the steering connecting seats to synchronously move along the convex rails at the lower ends of the bottom beams in the forward direction;
(e) when the front and rear walking columns synchronously move to finish a step distance, the operation of the walking hydraulic cylinder is stopped, the two-lining template trolley is integrally fixed, the vertical hydraulic rod is gradually taken into the vertical hydraulic cylinder, each bearing base is lifted upwards to wait for the steering connection base at the lower ends of the front and rear walking columns to fall on the ground to bear the weight, the operation of the vertical hydraulic cylinder is stopped, and each bearing base is suspended.
(f) And starting the walking hydraulic cylinder, ejecting the walking hydraulic rod out of the walking hydraulic cylinder, and driving the two bottom beams and the integral self-walking steering type two-lining template trolley to move towards the advancing direction by taking the upper and lower wheel rollers in the grooves of the front and rear walking columns as rolling shafts to finish a step. Obviously, the steering connecting seat can replace an elongated column seat, and the forward straight movement and the backward straight retreat of the two-lining template trolley are realized.
(g) And (3) transverse movement and steering of the self-walking steering type two-lining template trolley:
wherein the steering is: the top plate at the front end of a top moving hydraulic rod on a top moving column parallel to the opposite bottom beam in the opposite direction is placed on the opposite tunnel wall or the ground of the tunnel, a top moving hydraulic cylinder is started to push the top moving hydraulic rod out, the top moving hydraulic rod drives the bottom beam and the two-lining template trolley to move to the rotating direction under the cooperation of a plurality of rolling balls at the lower end of the rotating connecting seat through the top moving column, and the rotation of the self-walking steering two-lining template trolley is completed. The device is suitable for turning with a large turning radius (more than or equal to 40 m).
Or a top plate at the front end of a top moving hydraulic rod on a top moving column parallel to the opposite bottom beam in the opposite direction is arranged on the opposite tunnel wall or the tunnel ground in the opposite direction, and a top plate at the front end of a top moving hydraulic rod on a top moving column on the bottom beam at the rear end and at the same side with the rotating direction is arranged on the tunnel wall at the same side at the rear end or the tunnel ground, and simultaneously two top moving hydraulic cylinders are started to eject the two top moving hydraulic rods, so that the two top moving hydraulic rods drive the bottom beam and the two lining template trolleys to move towards the rotating direction under the matching action of a plurality of rolling balls at the lower end of the steering connecting seat through the top moving columns. The turning with smaller turning radius (less than 40 m) is suitable.
The transverse movement (adjusting the width of the two-lining pouring space of the tunnel walls on two sides if necessary) is as follows: the top plates at the front ends of the two jacking hydraulic rods on the two jacking columns at the two ends of the opposite bottom beam opposite to the transverse moving direction are respectively arranged on the opposite tunnel wall or the tunnel ground, two jacking hydraulic cylinders are started to simultaneously push out the two jacking hydraulic rods, and the two jacking hydraulic rods drive the bottom beam and the two lining template trolleys to integrally move towards the transverse moving direction under the cooperation of a plurality of rolling balls at the lower end of the steering connecting seat through the jacking columns, so that the transverse integral movement of the self-walking steering type two lining template trolleys is completed.
The thickness of turning to the adapter lower extreme establish 1 ~ 4cm, the area is greater than the iron plate that turns to the adapter removal length, a plurality of spin press on iron plate to prevent that the spin from crushing tunnel ground, and do benefit to and turn to.
(6) After the self-walking steering type two-lining formwork trolley moves in place in a tunnel, four vertical hydraulic cylinders are started to enable four vertical hydraulic rods to be synchronously ejected out, four bottom beam steel columns are driven to move downwards along corresponding bottom beam cylinder bases, the lengths of the four bearing bases and the lower end faces of the bottom beams are simultaneously prolonged, the lower end faces of the bottom beams rise to enable the front and rear walking columns and the lengthened column bases or the steering connection bases thereof to be lifted simultaneously until the four bottom beam steel columns leave the ground, the four vertical hydraulic cylinders are locked to operate, the lengthened column bases or the steering connection bases located at the lower ends of the front and rear walking columns are dismounted, the four vertical hydraulic cylinders are started again to enable the four vertical hydraulic rods to be synchronously retracted into the vertical hydraulic cylinders, the bottom beam cylinder bases at the two ends of the bottom beams are respectively supported on the bearing bases at the lower ends of the bottom beam cylinder bases, the front and rear walking.
The lower end surface of the bottom beam rises to enable the front and rear walking columns to be lifted simultaneously until the height of the front and rear walking columns away from the ground is larger than the height of the lengthened column seat or the steering connecting seat.
In a word, the invention can solve the defects of the prior two-lining template trolley by using a simple structure, and has the advantages of simple structure, convenient and flexible walking and transverse movement, time and labor saving, low cost, good construction quality, good safety and good use effect.
Claims (10)
1. The utility model provides a two lining form jumbo of self-propelled steering formula, includes floorbar, portal, template hydraulic stem, goes up roof-rack, cope match-plate pattern and side form board, its characterized in that:
the supporting device is moved in a matching way: the support and the matched walking device for the two-lining template trolley enable the two-lining template trolley to move, the lower ends of a plurality of vertical support columns forming two side edges of a portal frame are fixed side by side at intervals on the upper end surfaces of the middles of two bottom beams arranged side by side at intervals, the upper ends of the vertical support columns are fixed with the two side edges of an upper top frame into a whole, bottom beam cylinder seats are vertically arranged at two ends of the bottom beams at two sides respectively, four bottom beam steel columns are arranged in the four bottom beam cylinder seats in a sliding mode respectively, the lower ends of the bottom beam steel columns are connected with the upper end of a bearing base at the lower end of each bottom beam cylinder seat into a whole through base connecting flange plates respectively, the upper ends of the bottom beam steel columns are connected with the lower ends of vertical hydraulic rods at the upper ends of the bottom beam cylinder seats into a whole respectively, and the upper ends of the vertical hydraulic cylinders are fixed on;
a traveling device: the walking device is positioned in the middle of the lower end of the bottom beam between the bottom beam cylinder seats, the walking device consists of a front walking column, a rear walking column, a connecting rod, an elongated column seat, a walking hydraulic cylinder and a walking hydraulic rod, the bottom beam is an I-shaped steel beam, two ends of the connecting rod are respectively connected with the middle of the front side surface and the middle of the rear side surface of the corresponding front walking column and the corresponding rear walking column into a whole through a rod connecting flange, the upper ends of the front walking column and the rear walking column are provided with grooves, the raised rail edges on two sides of the lower end of the bottom beam are positioned in the grooves, the raised rail edges on two sides in the grooves are respectively provided with two upper wheel rollers at intervals in the front and the rear on the upper end surface, the central shaft of each upper wheel roller is internally provided with an upper shaft rod, the outer side end of the upper shaft rod is fixedly connected with the side edge of the groove of the corresponding part, the grooves on the lower end surface of the bottom beam are internally provided with two lower wheel rollers at intervals in the front, the middle part of the lower end surface of the bottom beam is fixed with a beam bottom connecting lug;
the bottom of the walking hydraulic cylinder is coupled with the rear walking column through a column coupling lug and a bolt shaft which are fixed in the middle of the front side surface of the rear walking column, and the front end of a walking hydraulic rod of the ejection walking hydraulic cylinder is coupled with a beam bottom coupling lug; or the bottom of the walking hydraulic cylinder is coupled with the front walking column through a column coupling lug and a bolt shaft which are fixed in the middle of the rear side surface of the front walking column, and the front end of a walking hydraulic rod of the ejection walking hydraulic cylinder is coupled with a beam bottom coupling lug;
the upper end of each lengthened column seat can be butted with the lower ends of the front and rear travelling columns through the column seat connecting flange and the travelling column connecting flange;
a transverse moving device: the device is used for transverse movement and steering of the two-lining template trolley, the transverse movement device consists of a top moving device and a steering connecting seat, the top moving device is characterized in that two ends of the outer side edge of a bottom beam are respectively provided with a top moving column, the rear end of a top moving hydraulic cylinder is in shaft connection with the front end of the top moving column through a top moving hydraulic cylinder shaft, and the front end of a top moving hydraulic rod is provided with a top plate; the steering joint seat is characterized in that a joint seat connecting flange plate is arranged at the upper end of the steering joint seat, column-walking connecting flange plates are arranged at the lower ends of the front and rear walking columns, the upper end of each steering joint seat can be in butt joint with the lower ends of the front and rear walking columns through the joint seat connecting flange plate and the column-walking connecting flange plates, a rolling ball seat is arranged at the lower end of the steering joint seat, a plurality of rolling ball grooves are densely distributed in the lower portion of the rolling ball seat at intervals, and the upper shaft of the plurality of rolling balls is sealed in the rolling ball grooves by the ball sealing plate with holes.
2. A self-propelled, steerable two-lined form-pallet truck according to claim 1, characterized in that: the length ratio of the connecting rod to the bottom beam is 6-7: 12.
3. A self-propelled, steerable two-lined form-pallet truck according to claim 1, characterized in that: the distance between the front and rear walking columns and the bearing base at the corresponding side is 1.6-2 m.
4. A self-propelled, steerable two-lined form-pallet truck according to claim 1, characterized in that: the upper end of the bearing base is supported at the lower end of the corresponding bottom beam, and the height of the bearing base is greater than the height of the front travelling column and the height of the rear travelling column which are positioned at the lower end of the bottom beam.
5. A self-propelled, steerable two-lined form-pallet truck according to claim 1, characterized in that: the sum of the heights of a front or rear walking column and a lengthened column seat or a steering connecting seat at the lower end of the bottom beam is greater than the height of the bearing base.
6. A self-propelled, steerable two-lined form-pallet truck according to claim 1, characterized in that: the moving range of the front or rear walking column along the lower end of the bottom beam is 1.5-1.6 m.
7. A walking steering method of a self-walking steering type two-lining form car as claimed in claim 1, characterized in that: the method comprises the following steps:
(1) according to the design, bottom beam cylinder seats are vertically fixed at two ends of bottom beams on two sides of a two-lining template trolley respectively, four bottom beam steel columns are respectively matched in the four bottom beam cylinder seats in a sliding mode, the lower end of each bottom beam steel column is connected with the upper end of a bearing base into a whole through a base connecting flange plate respectively, the upper end of each bottom beam steel column is connected with the lower end of a vertical hydraulic rod positioned at the upper end of the bottom beam cylinder seat into a whole, and the upper end of each vertical hydraulic cylinder is fixed on a vertical supporting seat corresponding to the upper end of the bottom beam cylinder seat respectively;
a walking device is arranged in the middle of the lower end of the bottom beam between the same bottom beam cylinder bases, and a lengthened column base and a steering connecting base are prepared; the outer sides of the two ends of the bottom beam are provided with a top moving column, the rear end of the top moving hydraulic cylinder is connected with the front end of the top moving column through a top moving hydraulic cylinder shaft, and the front end of the top moving hydraulic rod is provided with a top plate;
(2) preparing a fixing bolt, a gasket and a fixing nut;
(3) when a self-walking steering type two-lining formwork trolley is used for carrying out two-lining formwork construction and concrete pouring in a tunnel, a vertical hydraulic rod retracts into a vertical hydraulic cylinder, bottom beam cylinder bases at two ends of a bottom beam are respectively supported on each bearing base at the lower end of each bottom beam cylinder base, and each front walking column and each rear walking column are suspended in the air;
(4) the self-walking steering type two-lining template trolley moves in the tunnel in a straight way: comprises a two-lining template trolley, wherein the two-lining template trolley is straight forwards and is straight backwards;
the forward straight-moving step of the second lining template trolley comprises the following steps:
(a) the top template and the side template are demoulded, so that the top template and the side template of the two-lining template trolley are separated from the tunnel two-lining concrete pouring layer;
the bottom of the walking hydraulic cylinder is coupled with the rear walking column through a column coupling lug and a bolt shaft which are fixed in the middle of the front side surface of the rear walking column, and the front end of a walking hydraulic rod of the ejection walking hydraulic cylinder is coupled with a beam bottom coupling lug;
(b) starting the four vertical hydraulic cylinders to synchronously eject the four vertical hydraulic rods, driving the four bottom beam steel columns to move downwards along the corresponding bottom beam cylinder seats, so that the lengths of the upper end surfaces of the four bearing bases and the lower end surfaces of the bottom beams are prolonged, lifting the front walking columns and the rear walking columns simultaneously until the front walking columns and the rear walking columns leave the ground for a certain height, and locking the four vertical hydraulic cylinders;
(c) the lower ends of the front travelling columns and the rear travelling columns are additionally connected with a lengthened column base;
(d) starting the traveling hydraulic cylinders at the lower ends of the two bottom beams to enable the traveling hydraulic rods to retract into the traveling hydraulic cylinders, and simultaneously driving the front and rear traveling columns with the lengthened column bases to synchronously move along the convex rails at the lower ends of the bottom beams in the forward direction;
(e) after the front walking column and the rear walking column synchronously move to finish a step pitch, stopping the running of the walking hydraulic cylinders, keeping the whole two-lining template trolley still, starting the four vertical hydraulic cylinders to gradually retract the vertical hydraulic rods into the vertical hydraulic cylinders, so that each bearing base is lifted upwards, stopping the running of the vertical hydraulic cylinders after the lengthening column seats at the lower ends of the front walking column and the rear walking column are fallen to the ground to bear the weight, and suspending each bearing base;
(f) starting a walking hydraulic cylinder, and ejecting a walking hydraulic rod out of the walking hydraulic cylinder so as to drive the two bottom beams and the upper and lower wheel rollers in the grooves of the front and rear walking columns of the integral self-walking steering type two-lining template trolley to move in the forward direction by taking the upper and lower wheel rollers as rolling shafts to finish a step;
(g) after the self-walking steering type two-lining template trolley walks by one step distance, starting the four vertical hydraulic cylinders to enable the four vertical hydraulic rods to be synchronously ejected out, so that four bottom beam steel columns are driven to downwards run along the corresponding bottom beam cylinder seats, the lengths of the four bearing bases and the lower end faces of the bottom beams are prolonged, the lower end faces of the bottom beams are lifted to enable the front walking columns, the rear walking columns and the lengthened column seats thereof to be lifted simultaneously until the four vertical hydraulic cylinders leave the ground, and locking the four vertical hydraulic cylinders;
(h) sequentially repeating the steps (d), (e), (f) and (g) until the self-walking steering type second-lining template trolley is straightly moved in the tunnel;
the backward straight-back step of the second lining template trolley comprises the following steps:
(a) the top template and the side template are demoulded, so that the top template and the side template of the two-lining template trolley are separated from the tunnel two-lining concrete pouring layer; separating the bottom of the walking hydraulic cylinder from a column connecting lug in the middle of the rear side surface of the rear walking column, and then connecting the bottom of the walking hydraulic cylinder with a front walking column through a column connecting lug and a bolt shaft which are fixed in the middle of the rear side surface of the front walking column, and connecting the front end of a walking hydraulic rod of the ejection walking hydraulic cylinder with a beam bottom connecting lug in a shaft connection manner;
the other steps are the same as the forward straight-going step of the second lining template trolley except the reverse direction;
(5) the self-walking steering type two-lining template trolley moves and turns in the tunnel in the transverse direction: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
(a) the top template and the side template are demoulded, so that the top template and the side template of the two-lining template trolley are separated from the tunnel two-lining concrete pouring layer;
(b) starting the four vertical hydraulic cylinders to synchronously eject the four vertical hydraulic rods, and driving the four bottom beam steel columns to move downwards along the corresponding bottom beam cylinder seats, so that the lengths of the four bearing bases and the lower end surfaces of the bottom beams are simultaneously prolonged, and the lower end surfaces of the bottom beams rise to simultaneously lift the front and rear walking columns until the front and rear walking columns leave the ground;
(c) the lower ends of the front and rear walking columns are additionally connected with a steering connecting seat;
(d) starting the traveling hydraulic cylinders at the lower ends of the two bottom beams to enable the traveling hydraulic rods to retract into the traveling hydraulic cylinders, and simultaneously driving the front and rear traveling columns with the steering connecting seats to synchronously move along the convex rails at the lower ends of the bottom beams in the forward direction;
(e) stopping the running of the walking hydraulic cylinder after the front walking column and the rear walking column synchronously move to finish a step pitch, keeping the whole two-lining template trolley still, gradually taking the vertical hydraulic rod into the vertical hydraulic cylinder, lifting each bearing base upwards, and stopping the running of the vertical hydraulic cylinder after the steering connection base at the lower ends of the front walking column and the rear walking column is fallen to the ground for bearing, wherein each bearing base is suspended;
(f) starting a walking hydraulic cylinder, ejecting a walking hydraulic rod out of the walking hydraulic cylinder, and driving the two bottom beams and the upper and lower wheel rollers in the grooves of the front and rear walking columns of the integral self-walking steering type two-lining template trolley to move in the advancing direction by taking the upper and lower wheel rollers as rolling shafts to finish a step pitch;
(g) and (3) transverse movement and steering of the self-walking steering type two-lining template trolley:
wherein the steering is: the top plate at the front end of a top moving hydraulic rod on a top moving column parallel to the opposite bottom beam in the opposite direction opposite to the rotating direction is placed on the opposite tunnel wall or the tunnel ground in the opposite direction, a top moving hydraulic cylinder is started to push the top moving hydraulic rod out, the top moving hydraulic rod drives the bottom beam and the two-lining template trolley to move to the rotating direction under the cooperation of a plurality of rolling balls at the lower end of the steering connecting seat through the top moving column, and the self-walking steering type two-lining template trolley is steered;
or a top plate at the front end of a top moving hydraulic rod on a top moving column parallel to the opposite bottom beam in the opposite direction opposite to the rotating direction is arranged on the opposite tunnel wall or the tunnel ground, and a top plate at the front end of a top moving hydraulic rod on a top moving column on the bottom beam at the rear end on the same side as the rotating direction is arranged on the tunnel wall at the same side at the rear end or the tunnel ground;
wherein the lateral movement is: the top plates at the front ends of two ejection moving hydraulic rods on two ejection moving columns at two ends of the bottom beam opposite to the transverse moving direction are respectively arranged on the opposite tunnel wall or the tunnel ground, two ejection moving hydraulic cylinders are started to simultaneously eject the two ejection moving hydraulic rods, and the two ejection moving hydraulic rods drive the bottom beam and the two lining template trolleys to integrally move towards the transverse moving direction under the cooperation of a plurality of rolling balls at the lower end of the steering connecting seat through the ejection moving columns so as to finish the transverse integral movement of the self-walking steering type two lining template trolleys;
(6) after the self-walking steering type two-lining formwork trolley moves in place in a tunnel, four vertical hydraulic cylinders are started to enable four vertical hydraulic rods to be synchronously ejected out, four bottom beam steel columns are driven to move downwards along corresponding bottom beam cylinder bases, the lengths of the four bearing bases and the lower end faces of the bottom beams are simultaneously prolonged, the lower end faces of the bottom beams rise to enable the front and rear walking columns and the lengthened column bases or the steering connection bases thereof to be lifted simultaneously until the four bottom beam steel columns leave the ground, the four vertical hydraulic cylinders are locked to operate, the lengthened column bases or the steering connection bases located at the lower ends of the front and rear walking columns are dismounted, the four vertical hydraulic cylinders are started again to enable the four vertical hydraulic rods to be synchronously retracted into the vertical hydraulic cylinders, the bottom beam cylinder bases at the two ends of the bottom beams are respectively supported on the bearing bases at the lower ends of the bottom beam cylinder bases, the front and rear.
8. The method of claim 7, wherein: the lower end surface of the bottom beam rises to enable the front and rear walking columns to be lifted simultaneously until the height of the front and rear walking columns away from the ground is larger than the height of the lengthened column seat or the steering connecting seat.
9. The method of claim 7, wherein: the lower end of the steering connecting seat is provided with an iron plate with the thickness of 1-4 cm and the area larger than the moving length of the steering connecting seat.
10. The method of claim 7, wherein: the steering connecting seat can replace a lengthened column seat.
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JP2001164894A (en) * | 1999-12-10 | 2001-06-19 | Tekken Constr Co Ltd | Tunnel concrete placing method by form with variable cross sectional shape and its device |
CN106761826A (en) * | 2016-12-23 | 2017-05-31 | 湖南五新隧道智能装备股份有限公司 | A kind of minitunnel lining trolley |
CN207161110U (en) * | 2017-09-01 | 2018-03-30 | 中建一局集团第一建筑有限公司 | Self-walking type moving trolley for tunnel roof with horseshoe-shaped cross section in construction open excavation |
CN107869352A (en) * | 2017-09-18 | 2018-04-03 | 贵州路桥集团有限公司 | A kind of combined tunnel double-lining trolley device and its construction method |
CN108386206B (en) * | 2018-01-02 | 2020-01-31 | 中国建筑第五工程局有限公司 | self-steering tunnel transverse tunnel lining trolley |
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