CN114808994B - Single-bin prefabricated pipe gallery assembling vehicle and pipe gallery installation method - Google Patents
Single-bin prefabricated pipe gallery assembling vehicle and pipe gallery installation method Download PDFInfo
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- CN114808994B CN114808994B CN202210501752.0A CN202210501752A CN114808994B CN 114808994 B CN114808994 B CN 114808994B CN 202210501752 A CN202210501752 A CN 202210501752A CN 114808994 B CN114808994 B CN 114808994B
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000009434 installation Methods 0.000 title claims description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 10
- 238000003032 molecular docking Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
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Classifications
-
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/14—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for both lifting and manoeuvring
- B60S9/205—Power driven manoeuvring fittings, e.g. reciprocably driven steppers or rotatably driven cams
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
-
- 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
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to a single-bin prefabricated pipe gallery assembling vehicle, wherein the front end of a chassis of the vehicle is provided with front wheels, the rear end of the chassis of the vehicle is provided with rear wheels, and the vehicle is also provided with a balancing mechanism, a jacking mechanism and a moving mechanism; the jacking mechanism comprises four synchronously controlled jacking jacks, and the jacking jacks support the pipe gallery segments to be assembled; the balance mechanism comprises a support jack, wherein the piston end of the support jack is downwards arranged and is abutted against the ground, so that the chassis of the vehicle is horizontal; the moving mechanism comprises a sliding seat plate fixedly connected with the jacking jack and a moving driving assembly for driving the sliding seat plate to move; the method for installing the single-bin prefabricated pipe gallery comprises the following steps: the front wheels stop in the tail ends of the installed pipe galleries, and the rear wheels pass through the pipe gallery segments to be assembled and stop outside the pipe gallery segments to be assembled; the jacking mechanism is stopped in the pipe gallery section to be assembled; the chassis is restored to be horizontal by a supporting jack; and the pipe gallery segment is lifted by the lifting mechanism and is moved in the middle of the chassis by the moving mechanism, and the pipe gallery segment is accurately assembled with the tail end of the pipe gallery.
Description
Technical Field
The invention relates to comprehensive pipe gallery installation construction engineering, in particular to a single-cabin prefabricated pipe gallery assembly vehicle and a pipe gallery installation method.
Background
At present, as the assembly technology and the technological level of the prefabricated assembly comprehensive pipe rack are limited by the on-site hoisting and docking technology conditions, when the pipe rack sections are spliced on site, hoisting equipment such as an automobile crane or a crawler crane is generally used for hoisting the pipe rack sections to realize docking, the lifting and moving precision of the automobile crane or the crawler crane is generally more than ten millimeters, and in addition, the factors such as instability of a site foundation of a crane, deformation and vibration of a suspension arm and the like, each docking of one pipe rack section takes a long time, the docking quality is difficult to ensure, so that the on-site splicing of the pipe rack sections consumes time, the construction efficiency is low, and the construction quality is difficult to ensure.
Disclosure of Invention
The invention aims to solve the problems of low installation and adjustment precision and long docking time of a single-bin pipe gallery in the prior art, thereby providing a ground assembly vehicle which is arranged in the pipe gallery for operation.
The invention solves the problems, and adopts the following technical scheme:
a single-bin prefabricated pipe gallery assembling vehicle comprises a vehicle chassis, wherein front wheels and rear wheels are arranged below the vehicle chassis, and a balancing mechanism, a jacking mechanism and a moving mechanism are further arranged below the vehicle chassis; the front end of the chassis is provided with a first motor for driving front wheels, a second motor for driving a lifting mechanism and a third motor for driving a balancing mechanism, the lifting mechanism comprises four lifting jacks which are arranged in a square array, each lifting jack is connected with a distributor, and the distributor is connected with the second motor; the piston end of the jacking jack is upwards arranged and is abutted against the lower surface of the top plate of the section of the pipe gallery to be assembled; the balance mechanism comprises a support jack which is connected with the third motor; the rear end of the chassis is vertically fixedly connected with a stand column, the top end of the stand column is fixedly connected with a cross beam, the cross beam is fixedly connected with a cantilever beam, and the supporting jack is fixedly connected to the outer end of the cantilever beam; the piston end of the supporting jack is arranged downwards; the moving mechanism comprises a sliding seat plate fixedly connected with the four lifting jacks and a moving driving assembly for driving the sliding seat plate to move.
Compared with the prior art, the invention adopting the structure has the beneficial effects that:
the fulcrum of the jacking mechanism of the assembly vehicle provided by the invention approaches to the opposite side of the assembly, the jack can react to the pipe gallery segment when acting, an operator can easily observe the assembly condition of the pipe gallery segment in the jacking movement process, and can directly observe the opposite displacement state of the pipe gallery segment assembly when controlling the pipe gallery to move, so that the control of the vehicle body is more accurate, and the accurate butt joint control is realized. The invention has the advantages of large longitudinal span of the vehicle body, balanced supporting points, simple structure of the vehicle frame body and good stability.
Preferably, the invention further adopts the technical scheme that:
the front wheels are arranged at the front end of the chassis and stop in the tail end of the pipe rack; the rear wheels are arranged at the rear end of the chassis, penetrate through the pair pipe gallery segments to be assembled and stop at the outer sides of the pair pipe gallery segments to be assembled; the jacking mechanism is arranged in the middle of the chassis; the piston end of the supporting jack is abutted with the ground, so that the chassis is horizontal; the piston end of the jacking mechanism is abutted with the pipe gallery top plate. In the pipe gallery section, the center of gravity of the pipe gallery section is basically the same as the distance between the ground support points at the two ends of the vehicle body, and the center of gravity is centered, so that the balance and stability of the vehicle body in the single-bin pipe gallery moving process can be ensured.
The vehicle chassis, the upright posts, the cross beams and the cantilever beams are light steel, and the vehicle chassis is of a high-strength steel frame structure; the front wheels and the rear wheels are metal rail wheels; the front wheel and the rear wheel are respectively provided with a locker. The light-weight vehicle frame body is adopted in the scheme, the light-weight vehicle frame body is small in size, low in weight and large in bearing capacity, and the load of the all-steel vehicle body is large, so that the load of a single-cabin pipe gallery can be completely met.
The mobile driving assembly comprises a longitudinal push rod arranged at the rear end of the chassis and a transverse push rod arranged at the right side of the chassis; the piston end of the longitudinal push rod is connected with the rear side of the sliding seat plate, so that the sliding seat plate is pushed and pulled to move forwards and backwards; the piston end of the transverse push rod is connected with the right side of the sliding seat plate, so that the sliding seat plate is pushed and pulled to move left and right; a first heavy universal ball array group for reducing friction force is arranged between the chassis and the sliding seat plate. The combined structure of the double push rods and the sliding surface ensures that the pipe gallery segment realizes double accurate positioning of front and back positions and left and right positions.
The first heavy universal balls contained in the first heavy universal ball array group are uniformly and densely arranged in a region on the chassis for the sliding seat plate to move, and the sliding seat plate slides on the first heavy universal ball array group. The structure is an embodiment that the first heavy universal ball array group is arranged on the chassis, so that the arrangement and the installation are convenient; the number of the first heavy universal balls is large, and each first heavy universal ball has smaller bearing capacity.
The first heavy universal balls contained in the first heavy universal ball array group are assembled in a collecting plate, the collecting plate is fixedly connected to the bottom surface of the sliding seat plate, the upper surface of the chassis is a flat and smooth plate surface, and the first heavy universal ball array group slides on the chassis. The scheme is an embodiment that the first heavy universal ball array group is arranged on the sliding seat plate, and the scheme is installed in an assembling unit mode, so that the installation, the disassembly and the replacement are convenient.
The rear side and the right side of the sliding seat plate are respectively provided with a sliding groove, the sliding groove comprises a box-shaped groove, and a plurality of second heavy universal balls are arranged at the bottom of the box-shaped groove; a push plate is fixedly connected with the piston ends of the longitudinal push rod and the transverse push rod; the pushing plate is arranged in the chute and is in sliding contact with the second heavy universal ball; the chute also comprises a limiting rod arranged on the outer side of the push plate, and the limiting rod is fixedly connected with the box-shaped groove. The second heavy type universal balls in the structure have strong load bearing capacity, and the pressure of the pushing plate on the sliding groove is shared by a plurality of the second heavy type universal balls, so that the sliding groove is not easy to damage; when one push rod pushes the sliding seat plate, the push plate of the other push rod moves in the corresponding sliding groove, and the movement is sliding on the second heavy universal ball, so that the movement resistance is small, and the sliding seat plate moves smoothly and stably; the limiting rod prevents the push plate from being separated from the chute.
The length of the sliding chute positioned on the right side of the sliding seat plate is more than or equal to the push-pull stroke of the longitudinal push rod; the length of the sliding chute positioned at the rear side of the sliding seat plate is more than or equal to the push-pull stroke of the transverse push rod; the sliding seat plate is also provided with a cross reinforcing frame, and the four outer ends of the cross reinforcing frame are fixedly connected with balancing weights; the chute is fixedly connected with the balancing weight. The thrust of the push rod to the balancing weight is directly transmitted to the whole sliding seat plate by the cross reinforcing frame, so that the stress of welding seams is reduced.
Based on the single-cabin prefabricated pipe gallery assembling vehicle, the invention also provides a single-cabin prefabricated pipe gallery installation method, which comprises the following specific operation steps:
1) Hoisting the pipe gallery segments to be assembled to the tail end of the pipe gallery, longitudinally correcting the pipe gallery segments with the tail end of the pipe gallery, and then falling onto a cushion layer close to the tail end of the pipe gallery;
2) Controlling the single-bin prefabricated pipe gallery assembly vehicle to move along the pipe gallery, enabling rear wheels to move forwards and pass through the pipe gallery segments to be assembled, enabling the rear wheels to fall on cushion layers outside the pipe gallery segments to be assembled, and enabling front wheels to stop in tail ends of the pipe gallery;
3) Starting a third motor, and supporting a supporting jack on the cushion layer to enable the chassis to recover to a horizontal state;
4) Starting a second motor, synchronously controlling four lifting jacks and simultaneously supporting a top plate of the pipe gallery segment to be assembled, so that the pipe gallery segment to be assembled is separated from the ground of the cushion layer;
5) The pipe gallery segments to be assembled are longitudinally moved along the pipe gallery by the moving driving assembly, and the distance between the pipe gallery segments to be assembled and the tail end of the pipe gallery is reduced; then the pair pipe gallery segments to be assembled are moved left and right, and the pair pipe gallery segments to be assembled are butted with the end face of the tail end of the pipe gallery;
6) And 3, the jack is lowered to enable the pipe gallery to be assembled to realize accurate butt joint.
Compared with the prior art, the invention adopting the method has the beneficial effects that:
the method provided by the invention can accurately and quickly dock the pipe gallery segments, thereby improving the construction efficiency and the construction quality of single-cabin prefabricated pipe gallery assembly, and being widely popularized in the field of single-cabin prefabricated pipe gallery installation. According to the method, the vehicle body stretches across the pipe gallery section to be installed, the pipe gallery section to be assembled is arranged in the middle of the vehicle chassis, the ground support is realized through wheels in the jacking process, and the support points at the two ends of the vehicle body are based on symmetry of the pipe gallery section in the whole moving process of the pipe gallery section, so that balance of the vehicle body is guaranteed.
Drawings
FIG. 1 is a schematic illustration of the ready-to-work condition of the modular cart moving to a pipe rack to be installed during installation of pipe rack segments;
FIG. 2 is a schematic view of the assembled roof header gallery of the present invention during installation of the pipe gallery segments;
FIG. 3 is a schematic view of a precise docking station for piping lane segments during installation of the piping lane segments;
FIG. 4 is a diagram showing a construction of a movement mechanism of the assembled vehicle according to an embodiment of the present invention;
FIG. 5 is a block diagram of the lift mechanism of the modular car of the present invention;
FIG. 6 is an enlarged view of a portion of the present invention relating to a traction motor on a modular vehicle;
FIG. 7 is a diagram showing the construction of a second embodiment of the present invention of the movement mechanism for the assembled vehicle;
FIG. 8 is a top view of a second embodiment of the present invention of a modular car movement mechanism;
FIG. 9 is a partial block diagram of a longitudinal push rod of the modular vehicle of the present invention;
FIG. 10 is a partial block diagram of the present invention for a modular car relating to a transverse push rod.
In the figure: 1. a tube lane tail end; 2. a pair pipe gallery segment to be assembled; 3. a chassis; 4. a front wheel; 5. a jack is jacked; 6. a rear wheel; 7. cantilever beam; 8. a support jack; 9. a first motor; 10. a second motor; 11. a third motor; 12. a dispenser; 13. a sliding seat plate; 14. a slide rail; 15. a pulley limit plate; 16. a traction motor; 17. a pulley; 18. a traction hook; 19. a traction rope roller; 20. the first heavy universal ball array group; 21. a longitudinal push rod; 22. a chute; 22-1, a box-shaped groove; 22-2, a limiting rod; 23. a motor; 24. balancing weight; 25. a cross reinforcing frame; 26. a push plate; 27. a transverse push rod; 28. and a second heavy type universal ball.
Detailed Description
The invention is further described below in connection with the following examples which are provided for the purpose of better understanding of the present invention and are, therefore, not to be construed as limiting the scope of the invention.
Referring to fig. 1 to 10, the single-cabin prefabricated pipe gallery assembling vehicle provided by the invention comprises a vehicle chassis 3, wherein front wheels 4 and rear wheels 6 are arranged below the vehicle chassis 3, and a first motor 9 for driving the front wheels 4 is arranged at the front end of the vehicle chassis 3. The front wheels 4 are arranged at the front end of the chassis 3, and the rear wheels 6 are arranged at the rear end of the chassis 3. The chassis 3 is also provided with a balancing mechanism, a jacking mechanism and a moving mechanism. The jacking mechanism is arranged in the middle of the supporting die frame 3, the front wheels 4 are stopped in the pipe gallery tail end 1, the rear wheels pass through the outer sides of the pipe gallery segments 2 to be assembled and hoisted beside the pipe gallery tail end 1 and fall on cushion layers outside the pipe gallery segments 2 to be assembled, and the jacking mechanism is positioned in the pipe gallery segments 2 to be assembled. Because the bottom plate of the pipe gallery has a certain thickness, the rear wheel 6 has a height difference with the front wheel 4 after falling to the ground, and the chassis 3 is in an inclined state.
The balancing mechanism, the jacking mechanism and the moving mechanism in the present invention will be described in detail below.
Jacking mechanism: referring to fig. 5, four jack-up jacks 5 are arranged in a square array on the chassis 3, each jack-up jack 5 is connected to a dispenser 12, and the dispenser 12 is connected to a second motor 10. The piston end of the jacking jack 5 is upwards arranged and is abutted against the lower surface of the top plate of the pipe gallery segment 2 to be assembled. In the invention, the lifting jack 5 selects a hydraulic jack and an electric hydraulic cylinder with corresponding tonnages according to the weight of the pipe gallery. The distributor 12 enables the four lifting jacks 5 to receive the synchronous signals, so that the synchronous lifting of the four hydraulic cylinders is ensured. In order to avoid the damage of the top plate structure of the jacking mechanism when jacking the pipe gallery section, the piston end of the jacking jack 5 is fixedly connected with a flange plate, and the contact area of the flange plate is enlarged. Further, the interface of the flange plate and the pipe gallery segment is provided with a flexible gasket.
Balance mechanism: referring to fig. 1 to 4, the rear end of the chassis 3 is vertically and fixedly connected with a column, the top end of the column is fixedly connected with a beam, a cantilever beam 7 is fixedly connected on the beam, and the outer end of the cantilever beam 7 is fixedly connected with a supporting jack 8. The support jack 8 is connected to a third motor 11. The piston end of the supporting jack 8 is downwards arranged and is abutted with the cushion layer, so that the chassis 3 is restored to be horizontal.
And a moving mechanism: in the invention, the four lifting jacks 5 are required to ensure the consistency of lifting actions and the consistency of moving actions. The use of four synchronous jacks 5 is not limited in practice. Each jack-up jack 5 is fixedly connected to the sliding seat plate 13, and the sliding seat plate 13 is controlled to move through the moving driving assembly, so that the accurate moving position of the jack-up pipe gallery segment 2 to be assembled is adjusted. The present invention provides two configurations of the mobile drive assembly.
Example 1
Referring to fig. 4 and 6, the movement driving assembly includes a pulley 17 provided on the lower surface of the sliding seat plate 13, the pulley 17 is installed in a slide rail 14, and the slide rail 14 is fixedly connected with the chassis 3 and disposed along the front-rear direction of the chassis 3. The movable driving assembly in this embodiment further comprises a traction motor 16, a traction rope roller 19 is mounted at the shaft end of the traction motor 16, the free end of the traction rope is connected with a traction hook 18, and the traction hook 18 is fixedly connected with the front end of the sliding seat plate 13. The traction motor 16 is mounted at the front end of the chassis 3 and may be located inside the second motor 10. The sliding seat plate 13 may be a one-piece mounting plate on which all four lifting jacks 5 are mounted. One or two towing hooks 18 are provided in front of the mounting plate. The sliding seat plates 13 may be four split mounting plates corresponding to the four jack-up jacks 5, respectively, as shown in fig. 5, and traction hooks 18 are provided, respectively, so that the four sliding seat plates 13 should be simultaneously towed.
The chassis 3 is provided with two slide rails 14, one on the left and right. Four pulleys 17 are arranged at the bottom of the whole sliding seat plate 13, and two pulleys 17 on each side are arranged in the corresponding side sliding rail 14. Four sliding seat boards 13 are separated, four pulleys 17 are arranged below each sliding seat board, two groups of pulleys are coaxial with each other. Only the two pulleys 17 at the outside of the bottom of each sliding seat plate 13 are disposed in the slide rails 14. The cost of the slide rail 14 should be reduced as much as possible based on the guiding effect, and the slide rail 14 adopts C-shaped channel steel. Further, the two ends of the sliding rail 14 are provided with pulley limiting plates 15, and the pulley limiting plates 15 prevent the sliding seat plate 13 from moving beyond the limit.
Example two
Referring to fig. 7 to 10, another structure of a moving driving assembly is provided in the present invention, and this embodiment is a combination of a double push rod and a sliding surface. The mobile drive assembly comprises a longitudinal push rod 21 mounted at the rear end of the chassis 3 and a transverse push rod 27 mounted on the right side of the chassis 3. The longitudinal pushers 21 are parallel to the pipe lane axis and the transverse pushers 27 are perpendicular to the pipe lane axis. The piston end of the longitudinal push rod 21 is connected with the rear side of the sliding seat plate 13, so that the sliding seat plate 13 is pushed and pulled to move forwards and backwards; the piston end of the transverse push rod 27 is connected to the right side of the sliding seat plate 13, so that the sliding seat plate 13 is pushed and pulled to move left and right. The longitudinal push rod 21 and the transverse push rod 27 are respectively provided with a motor 23, the longitudinal push rod 21 and the transverse push rod 27 are all electric push-pull hydraulic cylinders with remote controllers, and the remote controllers respectively control the power supplies of the two motors 23, so as to control the expansion and contraction of the corresponding push rods. And a remote controller is adopted to finely control the displacement of the pipe gallery segment while observing the approaching condition of the pipe gallery segment and the tail end of the pipe gallery.
The second embodiment of the moving driving assembly further comprises a first heavy-duty universal ball array group 20 arranged on the upper surface of the chassis 3 or the bottom surface of the sliding seat plate 13. The first heavy duty ball array 20 includes a plurality of first heavy duty balls arranged uniformly and densely. When the first heavy-duty universal ball array group 20 is arranged on the chassis 3, the first heavy-duty universal balls are distributed in the area of the chassis 3 for the sliding seat plate 13 to move. The lower surface of the sliding seat plate 13 is smooth, and the sliding seat plate 13 slides on the first heavy universal ball array 20. When the first heavy-duty universal ball array 20 is disposed at the bottom of the sliding seat plate 13, each first heavy-duty universal ball may be assembled in one integrated board and then integrally installed at the bottom of the sliding seat plate 13. The support frame 3 in this example is a flat and smooth plate surface, and the first heavy-duty ball array 20 slides on the chassis 3. The structure realizes double accurate positioning of the front and back positions, the left and right positions of the pipe gallery segments 2 to be assembled.
The specific connection structure of the push rod and the sliding seat plate 13 is as follows: the rear side and the right side of the sliding seat plate 13 are respectively provided with a sliding chute 22, the sliding chute 22 comprises a box-shaped groove 22-1, and a plurality of second heavy universal balls 28 are arranged at the bottom of the box-shaped groove 22-1; the piston ends of the longitudinal push rod 21 and the transverse push rod 27 are fixedly connected with a push plate 26 respectively, and the push plate 26 is arranged in the sliding groove 22 and is in sliding contact with a second heavy universal ball 28. When the push plate 26 pushes the sliding seat plate 13 and the load components thereon, the plate surface is simultaneously pressed on the plurality of second heavy universal balls 28, the load force of the heavy universal balls is strong, the plurality of second heavy universal balls 28 share the pressure together, and the pressure born by each second heavy universal ball 28 is in the range that the second heavy universal ball can load. The push plate 26 slides on the surface of the second universal ball 28 when moving in the chute 22, so that the movement of the push plate 26 is prevented little, and the sliding seat plate 13 moves smoothly and smoothly. The slide groove 22 further comprises a limiting rod 22-2 arranged on the outer side of the push plate 26, the limiting rod 22-2 is fixedly connected with the box-shaped groove 22-1, and the limiting rod 22-2 prevents the push plate 26 from being separated from the slide groove 22, so that pushing out and pulling back of the sliding seat plate 13 are realized.
When the truck crane places the pipe rack segment 2 to be assembled beside the pipe rack tail end 1, the left-right position deviation is small, and the front-back position deviation is large (the front-back position refers to the distance between the pipe rack segment 2 to be assembled and the pipe rack tail end 1). Thus, in the case of the structural arrangement according to the invention, the push-pull travel of the longitudinal push rod 21 is greater than that of the transverse push rod 27. The length of the sliding chute 22 positioned on the right side of the sliding seat plate 13 is greater than or equal to the push-pull stroke of the longitudinal push rod 21; the length of the sliding chute 22 positioned at the rear side of the sliding seat plate 13 is greater than or equal to the push-pull stroke of the transverse push rod 27.
Still further, the sliding seat plate 13 is also provided with a cross reinforcing frame 25, and four outer end parts of the cross reinforcing frame 25 are fixedly connected with balancing weights 24; the chute 22 is fixedly connected with the counterweight 24. The thrust of the push rod to the balancing weight 24 in the scheme is directly transmitted to the whole sliding seat plate 13 by the cross reinforcing frame 25, so that the stress of welding seams is reduced.
The definitions of the push rod arrangement direction in this embodiment, namely, "front end", "rear end", "front side" and "right side", are merely for convenience of description and should not be limiting of the present technical solution.
According to the invention, the chassis 3, the upright posts, the cross beams and the cantilever beams 7 are light steel, and the chassis 3 is of a high-strength steel frame structure; the front wheels 4 and the rear wheels 6 are metal rail wheels, and the front wheels 4 and the rear wheels 6 are respectively provided with a locker. The structure further lightens the weight of the vehicle body, the all-steel vehicle body has large load, and the weight of the pipe gallery section can be completely met.
The traction motor 16 and the traction rope drum 19 are structures for pulling the jacking mechanism and the pipe lane segments, and the structures can be replaced by a winch which is arranged in the pipe lane in front of the chassis 3.
Based on the single-cabin prefabricated pipe gallery assembling vehicle, the invention also provides a comprehensive pipe gallery assembling and installing method, which comprises the following specific operation steps:
1) The pipe gallery segments 2 to be assembled are hoisted to the pipe gallery tail end 1 and fall onto the cushion layer near the pipe gallery tail end 1 after being longitudinally aligned with the pipe gallery.
2) The single-bin prefabricated pipe rack assembly vehicle is controlled to move along the pipe rack, the rear wheels 6 move in front to pass through the pipe rack segments 2 to be assembled, the rear wheels 6 fall on the cushion layer outside the pipe rack segments 2 to be assembled, and the front wheels 4 stop in the pipe rack tail end 1.
3) The third motor 11 is started, and the supporting jack 8 is supported on the cushion layer, so that the chassis 3 is restored to the horizontal state.
4) The second motor 10 is started, and the four lifting jacks 5 are synchronously controlled to simultaneously support the top plate of the pipe gallery segment 2 to be assembled, so that the pipe gallery segment 2 to be assembled is separated from the bedding ground.
5) The pipe gallery segments 2 to be assembled are longitudinally moved along the pipe gallery by moving the driving assembly, and the distance between the pipe gallery segments 2 to be assembled and the tail end 1 of the pipe gallery is reduced; and then the pair pipe gallery segment 2 to be assembled is moved left and right, so that the pair pipe gallery segment 2 to be assembled is in butt joint with the end face of the pipe gallery tail end 1.
6) And the lifting jack 5 is lowered to enable the pipe gallery segments 2 to be assembled to land, so that accurate butt joint is realized.
The following details the operation steps of the present invention in connection with specific construction examples:
(1) The first joint pipe gallery is hoisted in place by a conventional method, the assembled vehicle runs into the first joint pipe gallery along the center line of the pipe joint after being electrified, and the rear wheels 6 stop on the bottom plate of the first joint pipe gallery.
(2) Hoist and mount second festival piping lane (waiting to organize pair pipe corridor section 2) to first festival piping lane rear, the position aligns along the central line with first festival piping lane, and the makeup car is followed first festival piping lane inside and is fallen to travel to second festival piping lane rear side, makes climbing mechanism stop in second festival piping lane roof below, and assembly car front wheel 4 stops on first festival piping lane bottom plate simultaneously, and rear wheel 6 stops outside the second festival piping lane.
(3) And opening a switch of the support jack 8 at the tail part of the assembled vehicle, and uniformly controlling a flange plate at the top of a piston rod of the jack to fall onto a concrete cushion layer at the rear side of the second pipe section gallery so as to enable the vehicle body to be restored to the horizontal state.
(4) And (3) opening a switch of a synchronous hydraulic jack (a jacking jack 5) to slowly jack up the second joint pipe gallery so that the second joint pipe gallery is leveled with the top of the first joint pipe gallery.
(5) One winch is placed in front of the assembly vehicle, one end of the winch is connected with two steel wire ropes with equal length, the other end of the winch is respectively hooked on traction hooks 18 at two ends of the synchronous hydraulic jack, the winch is started, the jack is slowly pulled to slide forwards, and finally the second joint pipe gallery is tightly attached to the first joint pipe gallery, so that accurate butt joint of the second joint pipe gallery is realized.
(6) Repeating the steps until the splicing of the whole pipe gallery is completed.
The invention is borne by the chassis 3 when the pipe gallery segment 2 to be assembled is lifted, the front wheels 4 are left supporting feet of the chassis 3, the supporting jacks 8 are right supporting feet of the chassis 3, the distances between the two supporting feet and the pipe gallery segment are basically the same, namely, when the pipe gallery is installed, the pipe gallery segment is always positioned in the middle of a vehicle body, supporting points on two sides of the pipe gallery segment are balanced, and the vehicle body is ensured not to topple due to overlarge load in the moving process of the pipe gallery segment 2 to be installed, so that the pipe gallery is stable.
The invention has the advantages of light weight, small volume and high bearing capacity.
The assembly vehicle is arranged in the pipe gallery section, the supporting points on the pipe gallery section are very close to the opposite surfaces of the pipe gallery group, the action of the jack can act on the pipe gallery in real time, an operator can observe the butt joint condition of the opposite surfaces of the group easily, then the displacement of the pipe gallery section can be controlled timely and accurately, and the accurate butt joint control is realized.
The invention is suitable for the assembly engineering of the single-bin prefabricated pipe gallery, realizes accurate and rapid butt joint of the pipe gallery, effectively improves the construction efficiency and the construction quality of the assembly of the single-bin prefabricated pipe gallery, and can be widely popularized in the field of installation of the single-bin prefabricated pipe gallery.
The foregoing description of the preferred embodiments of the invention is not intended to limit the scope of the claims, but rather to cover all equivalent modifications within the scope of the present invention as defined by the appended claims.
Claims (7)
1. A single-bin prefabricated pipe gallery assembling vehicle comprises a vehicle chassis (3), wherein front wheels (4) and rear wheels (6) are arranged below the vehicle chassis (3), and a balancing mechanism, a jacking mechanism and a moving mechanism are further arranged; the front end of the chassis (3) is provided with a first motor (9) for driving the front wheels (4), a second motor (10) for driving the jacking mechanism and a third motor (11) for driving the balancing mechanism, and is characterized in that:
the jacking mechanism comprises four jacking jacks (5) which are arranged in a square array, each jacking jack (5) is connected with a distributor (12), and the distributor (12) is connected with a second motor (10); the piston end of the jacking jack (5) is upwards arranged and is abutted against the lower surface of the top plate of the pipe gallery segment (2) to be assembled;
the balance mechanism comprises a supporting jack (8), and the supporting jack (8) is connected with a third motor (11); the rear end of the chassis (3) is vertically fixedly connected with a stand column, the top end of the stand column is fixedly connected with a cross beam, the cross beam is fixedly connected with a cantilever beam (7), and the supporting jack (8) is fixedly connected with the outer end of the cantilever beam (7); the piston end of the supporting jack (8) is downwards arranged;
the moving mechanism comprises a sliding seat plate (13) fixedly connected with the four lifting jacks (5), and further comprises a moving driving assembly for driving the sliding seat plate (13) to move, wherein the moving driving assembly comprises a longitudinal push rod (21) arranged at the rear end of the chassis (3) and a transverse push rod (27) arranged at the right side of the chassis (3); the piston end of the longitudinal push rod (21) is connected with the rear side of the sliding seat plate (13), so that the sliding seat plate (13) is pushed and pulled to move forwards and backwards; the piston end of the transverse push rod (27) is connected with the right side of the sliding seat plate (13), so that the sliding seat plate (13) is pushed and pulled to move left and right; a first heavy universal ball array group (20) for reducing friction force is arranged between the chassis (3) and the sliding seat plate (13);
the front wheel (4) is arranged at the front end of the chassis (3) and stops in the tail end (1) of the pipe rack; the rear wheel (6) is arranged at the rear end of the chassis (3) and penetrates through the pair pipe gallery segment (2) to be assembled to stop at the outer side of the pair pipe gallery segment (2) to be assembled; the jacking mechanism is arranged in the middle of the chassis (3); the piston end of the supporting jack (8) is abutted with the ground, so that the chassis (3) is horizontal; the piston end of the jacking mechanism is abutted with the pipe gallery top plate.
2. The single-deck prefabricated pipe rack assembly vehicle of claim 1, wherein: the vehicle chassis (3), the upright posts, the cross beams and the cantilever beams (7) are light steel, and the vehicle chassis (3) is of a high-strength steel frame structure; the front wheels (4) and the rear wheels (6) are metal rail wheels, and locking devices are respectively arranged on the front wheels (4) and the rear wheels (6).
3. The single-deck prefabricated pipe rack assembly vehicle of claim 1, wherein: the first heavy-duty universal balls contained in the first heavy-duty universal ball array group (20) are uniformly and densely arranged in a region on the chassis (3) for the sliding seat plate (13) to move, and the sliding seat plate (13) slides on the first heavy-duty universal ball array group (20).
4. The single-deck prefabricated pipe rack assembly vehicle of claim 1, wherein: the first heavy universal ball array (20) is assembled in a collecting plate, the collecting plate is fixedly connected to the bottom surface of the sliding seat plate (13), the upper surface of the chassis (3) is a flat and smooth plate surface, and the first heavy universal ball array (20) slides on the chassis (3).
5. The single-deck prefabricated pipe rack assembly vehicle of claim 1, wherein: the rear side and the right side of the sliding seat plate (13) are respectively provided with a sliding groove (22), the sliding groove (22) comprises a box-shaped groove (22-1), and a plurality of second heavy universal balls (28) are arranged at the bottom of the box-shaped groove (22-1); the piston ends of the longitudinal push rod (21) and the transverse push rod (27) are fixedly connected with a push plate (26); the push plate (26) is arranged in the chute (22) and is in sliding contact with the second heavy universal ball (28); the chute (22) also comprises a limiting rod (22-2) arranged on the outer side of the push plate (26), and the limiting rod (22-2) is fixedly connected with the box-shaped groove (22-1).
6. The single-deck prefabricated pipe rack assembly vehicle of claim 1, wherein: the length of a sliding groove (22) positioned on the right side of the sliding seat plate (13) is more than or equal to the push-pull stroke of the longitudinal push rod (21); the length of the sliding groove (22) positioned at the rear side of the sliding seat plate (13) is more than or equal to the push-pull stroke of the transverse push rod (27); the sliding seat plate (13) is also provided with a cross reinforcing frame (25), and the four outer ends of the cross reinforcing frame (25) are fixedly connected with balancing weights (24); the sliding groove (22) is fixedly connected with the balancing weight (24).
7. A single-cabin prefabricated pipe gallery installation method based on the single-cabin prefabricated pipe gallery assembly vehicle in claim 1, which is characterized in that:
1) Hoisting the pipe gallery segment (2) to be assembled to the pipe gallery tail end (1), longitudinally correcting the pipe gallery tail end (1), and then falling onto a cushion layer close to the pipe gallery tail end (1);
2) The single-bin prefabricated pipe gallery assembling vehicle is controlled to move along the pipe gallery, the rear wheels (6) move forwards to penetrate through the pipe gallery segments (2) to be assembled, the rear wheels (6) fall on the cushion layer outside the pipe gallery segments (2) to be assembled, and the front wheels stop in the tail ends (1) of the pipe gallery;
3) Starting a third motor (11), and supporting a supporting jack (8) on the cushion layer to enable the chassis (3) to recover to a horizontal state;
4) Starting a second motor (10), synchronously controlling four lifting jacks (5) to simultaneously support the top plate of the pair pipe gallery segment (2) to be assembled, so that the pair pipe gallery segment (2) to be assembled is separated from the ground of the cushion layer;
5) The pipe gallery segments (2) to be assembled are longitudinally moved along the pipe gallery by the moving driving assembly, and the distance between the pipe gallery segments (2) to be assembled and the tail end (1) of the pipe gallery is reduced; then the pair pipe gallery segments (2) to be assembled are moved left and right, so that the pair pipe gallery segments (2) to be assembled are in butt joint with the end face of the tail end (1) of the pipe gallery;
6) And the jack (5) is lowered to enable the pipe gallery segments (2) to be assembled to land, so that accurate butt joint is realized.
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| CN202210501752.0A CN114808994B (en) | 2022-05-10 | 2022-05-10 | Single-bin prefabricated pipe gallery assembling vehicle and pipe gallery installation method |
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| CN114808994B true CN114808994B (en) | 2024-03-26 |
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| CN114808994A (en) | 2022-07-29 |
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