Pipeline mounting equipment and method

Abstract

The invention discloses pipeline mounting equipment and method, and belongs to the technical field of building machinery, and the equipment comprises a working platform A, a working platform B, height-adjustable supporting legs, a sliding trolley A, a sliding trolley B, an arc-shaped positioning plate, a guide rod, a guide hole, a flexible guide piece, a fixing mechanism and a butt joint mechanism. According to the using method, the complex pipeline butt joint procedure is simplified into two simple steps, wherein the first step is accurate positioning between the to-be-installed pipeline and the sliding trolley A or the sliding trolley B; according to the second one, accurate butt joint between the two to-be-installed pipelines is achieved through accurate positioning between the sliding trolley A and the sliding trolley B. Through the arrangement, the difficulty of pipeline butt joint installation is effectively reduced, and the butt joint installation quality is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of construction machinery, and in particular relates to a pipeline installation device and method. Background Art

[0002] Pipeline installation involves docking between adjacent pipelines, and the docked pipelines are connected by hot melting or welding. Since pipelines are relatively heavy, commonly used docking means are mostly with the help of lifting equipment, such as the pipeline installation equipment based on BIM technology disclosed in the patent document with application number CN202411342630, including a hoisting mechanism that can be detachably suspended from a tower crane hook, the hoisting mechanism includes two lifting platforms, and electric hoists are installed inside both ends of the lifting platform. A rope 1 is traction-driven on the outer side of the electric hoist, and a rope 2 is detachably fixed under the two adjacent ropes 1, and a plurality of steel balls are fixed in series on the outer side of one rope 2. In the present invention, by observing whether the bubble of the level bubble on the traction rope is in the middle position, it is judged whether the two pipelines are at the same position height, which is convenient for construction personnel to quickly identify whether the pipeline is in the installation position, and the rope 1 is respectively rolled up and released by the two electric hoists, so that the rope 2 is driven with the steel ball to support the gap between the bottom of the pipeline and the bottom surface of the buried trench, so as to prevent the bottom of one end of the pipeline from being lowered and causing the pipeline interface position to tilt and generate shear force, which is conducive to ensuring the safety of the pipe mouth after the pipeline is docked.

[0003] The shortcomings of this technology are:

[0004] 1. Not only is the structure complex, but the operation is also cumbersome. When the lifting equipment lifts the pipeline, the pipeline will inevitably shake, so it is extremely difficult to find the pipeline docking during the lifting process, especially when it comes to hot melting and welding of the pipeline. Slight shaking will cause the effect of hot melting or welding at the interface to be destroyed.

[0005] 2. Although the equipment can be moved to a new installation location after one end of the pipe is connected, the assembly line operation of the pipe installation cannot be truly realized due to the lack of continuity of the previous and subsequent installation work. Summary of the invention

[0006] In view of the problems described in prior arts 1 and 2, the present invention discloses a pipeline installation device and method.

[0007] To achieve the above purpose, the technical solution of the present invention is:

[0008] A pipeline installation device comprises a working platform A and a working platform B, wherein the bottoms of the working platforms A and B are respectively provided with adjustable height support legs, and the working platforms A and B are respectively provided with sliding trolleys A and B, and the bottoms of the sliding trolleys A and B are respectively provided with a plurality of arc-shaped positioning plates arranged along the length direction, wherein the plurality of arc-shaped positioning plates have the same structure and are coaxially arranged, and the curvature of the arc-shaped positioning plates is smaller than the curvature of the pipeline to be installed, and the pipeline to be installed is placed in the plurality of arc-shaped positioning plates, and due to the effect of gravity, the busbar at the bottom end of the pipeline to be installed contacts the busbar at the bottom end of the inner surface of the arc-shaped positioning plates, so as to realize the preliminary positioning of the pipeline to be installed relative to the sliding trolley A or the sliding trolley B, and the two busbars are parallel to the center dividing line of the bottom plate of the sliding trolley A or the sliding trolley B and the side walls on both sides of the bottom plate, A plurality of guide rods are provided in the longitudinal direction on the top of the side wall, and guide holes are provided on the top of the guide rods. The inner diameters of the guide holes of the sliding trolley A and the sliding trolley B are consistent, and the vertical distances of the hole centers relative to the bottom upper surface of the working platform A or the working platform B are the same. The guide holes on the same side of the sliding trolley A or the sliding trolley B are coaxial. The guide holes on both sides of the sliding trolley A and the sliding trolley B are respectively connected in series through flexible guide members, and when the flexible guide members are straightened, the coaxial relative position of two pipes to be installed is realized. The coaxial relative position has an error within the control range due to the elasticity of the flexible guide members. The inner sides of the sliding trolley A and the sliding trolley B are respectively provided with fixing mechanisms for further fixing the pipes to be installed, and the opposite ends of the sliding trolley A and the sliding trolley B are provided with docking mechanisms for docking and tightening the two pipes and finally accurately positioning them.

[0009] Preferably, the working platform A and the working platform B have the same structural dimensions and both include a first support body with a U-shaped cross-section and open front and rear ends. The four corners of the bottom end of the first support body are provided with adjustable height support legs. The bottom ends of the adjustable height support legs are provided with a first universal wheel with a brake. A spirit level is installed on the first support body. The sliding trolley A and the sliding trolley B have the same structure, and their bottom plate and side walls constitute a second support body of a U-shaped structure. Second universal wheels are provided at the four corners of the bottom end of the bottom plate to enable the sliding trolley A and the sliding trolley B to slide on the inner surface of the bottom of the first support body. The length of the second support body is greater than the width of the first support body, and the inner surface of the bottom plate of the second support body is parallel to the inner surface of the bottom of the first support body.

[0010] Preferably, the flexible guide member is a rope for passing through the guide hole, and the outer surface of the rope is gap-fitted with the inner surface of the guide hole. The ends of the two ropes facing the working platform B are commonly connected to a first U-shaped clip, and the first U-shaped clip is used to clamp with the outer end of the top of the working platform B; the other ends of the two ropes are commonly connected to a second U-shaped clip, and the second U-shaped clip is clamped with the outer end of the top of the working platform A; limit blocks are respectively provided on the tops of the two side walls of the working platform A or the working platform B where the opposite ends of the first U-shaped clip and the second U-shaped clip are located, so as to limit the first U-shaped clip or the second U-shaped clip from sliding inward, and pulling cylinders are respectively provided on both sides of the top of the second U-shaped clip, which are arranged along the direction in which the ropes are straightened and are respectively connected to the rope ends on the same side. After the two ropes are straightened, they are used to provide guidance for the toward-toward movement of the sliding trolley A and the sliding trolley B.

[0011] Preferably, there are multiple groups of the fixing mechanisms, and each group of the fixing mechanisms includes an electric cylinder horizontally arranged on the inner surfaces of the two side walls of the second support body, the fixed ends of the electric cylinders are fixedly connected to the mounting plates preset on the inner surfaces of the side walls of the second support body by bolts, and the mounting plate is provided with a plurality of threaded holes arranged in a matrix, and the threaded holes are used to adjust the position of the electric cylinder in the up and down, front and back directions, and the telescopic ends of the electric cylinders are detachably connected with an arc-shaped pressure plate, and the two opposing arc-shaped pressure plates are used to clamp the pipe to be installed, and the arc-shaped pressure plates are provided with a variety of models according to the size of the pipe to be installed.

[0012] Preferably, the docking mechanism includes a threaded hole provided on the two side walls of the sliding trolley A toward the middle of one end of the sliding trolley B, the axis of the threaded hole is parallel to the bottom plate of the second support body and extends into the side wall, a cast iron rod is screwed into the threaded hole, and a truncated cone guide head is provided at the end of the cast iron rod. The docking mechanism also includes a docking hole provided on the two side walls of the sliding trolley B toward the middle of one end of the sliding trolley A, an electromagnet is provided at the bottom of the docking hole, and the sliding trolley B is provided with a power socket for powering the electromagnet and an adjustment button for controlling the power of the electromagnet.

[0013] Preferably, the inner surface of the arc-shaped positioning plate is provided with a plurality of ball grooves arranged in a matrix, balls are rollingly connected in the ball grooves, and the tops of the balls protrude from the upper ports of the ball grooves.

[0014] Preferably, when the rope is straightened by the pulling cylinder, its elasticity satisfies: the displacement range of the truncated cone guide head is always within the range projected from the docking hole to one side of the sliding trolley A.

[0015] Preferably, four laser ranging sensors are respectively provided at one end facing the same direction as the work platform A and the work platform B, and detection plates used in conjunction with the four laser ranging sensors are respectively provided at the other ends of the work platform A and the work platform B. When the distances detected by the four laser ranging sensors are the same, it represents that the work platform A and the work platform B are facing each other.

[0016] A pipeline installation method for pipeline installation equipment comprises the following steps:

[0017] Step 1: Set the work platform A and the work platform B relative to each other, and adjust the height-adjustable support feet so that the bottom upper surfaces of the two first support bodies are in the same horizontal plane. At the same time, make the distances detected by the four laser distance measuring sensors consistent. At this time, the preparation work is completed;

[0018] Step 2: Place the sliding trolley A in the working platform A, place the sliding trolley B in the working platform B, and use the lifting equipment to place the first section of the pipe to be installed on the multiple arc-shaped positioning plates on the sliding trolley B to achieve the initial positioning of the first section of the pipe to be installed relative to the sliding trolley B; then use the lifting equipment to place the second section of the pipe to be installed on the multiple arc-shaped positioning plates of the sliding trolley A to achieve the initial positioning of the second section of the pipe to be installed relative to the sliding trolley A;

[0019] Step 3: Clamp the second U-shaped clamping plate with the outer end setting position of the top of the working platform A, clamp the first U-shaped clamping plate with the outer end setting position of the top of the working platform B, pass the ropes through the guide holes on the sides in turn and connect them to the corresponding pulling cylinders. Under the pulling force of the pulling cylinders, the ropes are tightened, and the sliding trolley A and the sliding trolley B drive the second section of the pipeline to be installed and the first section of the pipeline to be installed to be coaxially opposite; push the opposite ends of the first section of the pipeline to be installed and the second section of the pipeline to be installed to move inward until the bottom of the joint of the first section of the pipeline to be installed and the second section of the pipeline to be installed are aligned with the inner end of the sliding trolley B or the sliding trolley A respectively;

[0020] Step 4: In order to overcome the defect of uneven mass distribution of the outer wall caused by the preparation process of the pipeline to be installed, the fixing mechanism is started, and the two electric cylinders in the same group are extended to the same length, and the first section of the pipeline to be installed and the second section of the pipeline to be installed are fixed relative to the sliding trolley B or the sliding trolley A through two arc-shaped pressing plates. At this time, the generatrix of the pipeline to be installed is aligned with the generatrix of the arc-shaped positioning plate;

[0021] Step 5. Under the guidance of the rope, move the sliding trolley A and the sliding trolley B toward each other, and rotate the cast iron rod to a set length. The set length refers to the length that matches the insertion depth of the joint of the first section of the pipe to be installed and the second section of the pipe to be installed under the hot melt condition; when hot melt is required, the hot melt operation of the joint is completed before the cast iron rod is inserted into the docking hole, and then the cast iron rod is inserted into the docking hole, and the electromagnet with gradually increased power tightens the joint by tightening the cast iron rod to complete the entire hot melt process; under welding conditions, the set length refers to the joint of the first section of the pipe to be installed and the second section of the pipe to be installed tightly abut when the cast iron rod is tightly attracted by the electromagnet;

[0022] Step 6. After the first section of the pipeline to be installed and the second section of the pipeline to be installed are butt-jointed, the fixing mechanism is released, and the working platform A and the working platform B are moved to the side of the second section of the pipeline to be installed to expose the first section of the pipeline to be installed, and supported by a temporary support frame, and the height and level of the working platform A and the working platform B are adjusted to make them face each other, and the second section of the pipeline to be installed is placed on the arc-shaped positioning plate of the sliding trolley B. The lifting equipment places the third section of the pipeline to be installed on the arc-shaped positioning plate of the sliding trolley A, and the above steps are repeated to perform the butt-joint installation between the third section of the pipeline to be installed and the second section of the pipeline to be installed, and so on. After all the pipelines are installed, the working platform A and the working platform B together with the sliding trolley A and the sliding trolley B are moved out of all the pipelines;

[0023] Step 7. With the help of lifting equipment, remove the temporary support frame and place the installed pipes at the designated location on the construction ground.

[0024] The beneficial effects of the pipeline installation device and method of the present invention are:

[0025] 1. The present invention greatly reduces the difficulty of placing the pipeline by lifting equipment. The pipeline to be installed can be placed on the arc-shaped positioning plate only by adjusting the position of the sliding trolley A or the sliding trolley B. At the same time, the initial positioning between the pipeline to be installed and the sliding trolley A or the sliding trolley B is achieved through the arc-shaped positioning plate.

[0026] 2. The present invention simplifies the complicated pipeline docking procedure into two simple steps. The first is the precise positioning between the pipeline to be installed and the sliding trolley A or sliding trolley B. First, the pipeline to be installed is placed on the arc-shaped positioning plate by a lifting device to achieve preliminary positioning, and then the precise positioning between the pipeline to be installed and the sliding trolley A or sliding trolley B is achieved by the equal extension of the electric cylinder; the second is to achieve precise docking between the two pipelines to be installed through the precise positioning between the sliding trolley A and the sliding trolley B, which is specifically embodied in that the relative positioning between the sliding trolley A and the sliding trolley B within a certain error range is first achieved by tightening the rope, and then the precise positioning between the sliding trolley A and the sliding trolley B is achieved by the cooperation between the cast iron rod and the docking hole. Since the precise positioning between the pipeline to be installed and the sliding trolley A or sliding trolley B is achieved, the precise positioning between the two pipeline interfaces is indirectly achieved. Through the above arrangement, the difficulty of pipeline docking installation is effectively reduced and the quality of docking installation is improved.

[0027] 3. The present invention can realize the assembly line operation of the continuous butt joint installation project of pipelines. After the butt joint installation of two pipelines is completed, the work platform B can be moved to the bottom of the pipeline at the end, and the work platform A is used to receive the new pipeline to be installed. It is only necessary to correct the relative position between the work platform A and the work platform B to continue the butt joint and installation of the pipelines. During the installation, other workers can also level the ground at the location where the pipeline is to be installed: for example, lay a pad, thereby reducing the difficulty of correcting the work platform A and the work platform B. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view structural schematic diagram of the pipelines of the present invention when they are butt-jointed.

[0029] Figure 2 It is a side view structural schematic diagram of the pipelines of the present invention when they are butt-jointed.

[0030] Figure 3 It is a schematic diagram of the top view of the structure of the pipes of the present invention when they are butt-jointed.

[0031] Figure 4 It is a schematic diagram of the working principle of the pipeline butt-jointed installation assembly line of the present invention.

[0032] The figure shows: 1-working platform A, 2-working platform B, 3-second U-shaped pallet, 4-first U-shaped pallet, 5-limiting block, 6-pulling cylinder, 7-connecting block at the front end of the first U-shaped pallet, 8-rope, 9-guide rod, 10-guide hole, 11-adjustable height support leg, 12-sliding trolley A, 13-arc-shaped positioning plate, 14-ball, 15-pipeline to be installed, 16-electric cylinder, 17-mounting plate, 18-arc-shaped pressure plate, 19-detection plate, 20-second universal wheel, 21-second section of pipeline to be installed, 22-first section of pipeline to be installed, 23-cast iron rod, 24-docking hole, 25-electromagnet, 26-exposed first section of pipeline to be installed, 27-temporary support frame. DETAILED DESCRIPTION

[0033] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0034] The following embodiments may be understood as individually expressing a part of a local structure or method of the present invention, or may be understood as a combination of the embodiments to explain the connotation of a larger structure or method of the present invention.

[0035] In the initial embodiment, the present invention provides a pipeline installation device, such as Figure 1-4As shown, it includes a working platform A1 and a working platform B2, the bottoms of the working platforms A1 and B2 are respectively provided with adjustable height support legs 11, the working platforms A1 and B2 are respectively provided with sliding trolleys A12 and sliding trolleys B (not marked in the figure), the bottoms of the sliding trolleys A12 and B are respectively arranged with multiple arc positioning plates 13 along the length direction, the multiple arc positioning plates 13 have the same structure and are coaxially arranged, the curvature of the arc positioning plates 13 is smaller than the curvature of the pipes to be installed 15, the pipes to be installed 15 are placed in the multiple arc positioning plates 13, due to the effect of gravity, the busbars at the bottom ends of the pipes to be installed 15 are in contact with the busbars at the bottom ends of the inner surfaces of the arc positioning plates 13, so as to realize the preliminary positioning of the pipes to be installed 15 relative to the sliding trolley A12 or the sliding trolley B, and the busbars are parallel to the center dividing line of the bottom plate of the sliding trolley A or the sliding trolley B and the side lines on both sides of the bottom plate. The top of the side wall is provided with a plurality of guide rods 9 in the longitudinal direction, and the top of the guide rod 9 is provided with a guide hole 10. The inner diameters of the guide holes 10 of the sliding trolley A12 and the sliding trolley B are consistent, and the vertical distances of the hole centers relative to the bottom upper surface of the working platform A1 or the working platform B2 are the same. The guide holes 10 on the same side of the sliding trolley A12 or the sliding trolley B are coaxial, and the guide holes 10 on both sides of the sliding trolley A12 and the sliding trolley B are respectively connected in series through flexible guide members, and when the flexible guide members are straightened, the coaxial relative of two pipes 15 to be installed is realized. The coaxial relative error exists in the controllable range due to the elasticity of the flexible guide members. The inner sides of the sliding trolley A12 and the sliding trolley B are respectively provided with fixing mechanisms for further fixing the pipes 15 to be installed, and the opposite ends of the sliding trolley A12 and the sliding trolley B are provided with docking mechanisms for realizing the docking, tightening and final precise positioning of the two pipes.

[0036] In a further embodiment, Figure 1-4 As shown, the working platform A1 and the working platform B2 have the same structural dimensions, both of which include a first support body with a U-shaped cross section and open front and rear ends, and adjustable height support legs 11 are provided at the four corners of the bottom end of the first support body, and the bottom end of the adjustable height support legs 11 is provided with a first universal wheel with a brake, and a level (not shown in the figure) is installed on the first support body, and the sliding trolley A12 and the sliding trolley B have the same structure, and the bottom plate and side walls thereof constitute a second support body of a U-shaped structure, and the bottom end of the bottom plate is provided with a second universal wheel 20 for sliding the sliding trolley A12 and the sliding trolley B on the inner surface of the bottom of the first support body, and the length of the second support body is greater than the width of the first support body, and the inner surface of the bottom plate of the second support body is parallel to the inner surface of the bottom of the first support body. Because the trolley can slide, the difficulty of placing the pipeline by the lifting equipment is greatly reduced, and at the same time, the pipeline placed on the arc positioning plate also realizes the preliminary positioning between the pipeline to be installed and the sliding trolley A or the sliding trolley B.

[0037] In a further embodiment, Figure 1-4 As shown, the flexible guide member is a rope 8 for passing through the guide hole 10, such as a rope 8 with a wear-resistant nitrile rubber layer on the outer surface, the outer surface of the rope 8 is in clearance with the inner surface of the guide hole 10, and the ends of the two ropes 8 facing the working platform B2 are commonly connected to a first U-shaped card plate 4, and the first U-shaped card plate 4 is used to clamp with the outer end of the top of the working platform B2; the other ends of the two ropes 8 are commonly connected to a second U-shaped card plate 3, and the second U-shaped card plate 3 is clamped with the outer end of the top of the working platform A1. The top of the two side walls of the working platform A1 or the working platform B2 where the first U-shaped pallet 4 and the second U-shaped pallet 3 are located are provided with limit blocks 5 to limit the first U-shaped pallet 4 or the second U-shaped pallet 3 from sliding inwards. The two sides of the top of the second U-shaped pallet 3 are provided with pulling cylinders 6, which are arranged along the direction of the rope straightening and are respectively connected to the ends of the ropes 8 on the same side. After the two ropes 8 are straightened, they are used to provide guidance for the sliding trolley A12 and the sliding trolley B to move toward each other. It should be emphasized that the straightening of the ropes 8 is not to tighten the pipes for docking, but to locate and guide the relative positions of the sliding trolleys A12 and B.

[0038] In a further embodiment, Figure 1-4 As shown, there are multiple groups of fixing mechanisms, and each group of fixing mechanisms includes an electric cylinder 16 horizontally arranged on the inner surfaces of the two side walls of the second support body. The fixed end of the electric cylinder 16 is fixedly connected to a mounting plate 17 preset on the inner surface of the side wall of the second support body by bolts. A plurality of threaded holes (not shown in the figure) are arranged in a matrix on the mounting plate 17. The threaded holes are used to adjust the position of the electric cylinder 16 in the up and down, front and back directions. The telescopic end of the electric cylinder 16 is detachably connected with an arc pressure plate 18. The two opposite arc pressure plates 18 are used to clamp the pipe 15 to be installed. The arc pressure plate 18 is provided with a variety of models according to the size of the pipe 15 to be installed.

[0039] In a further embodiment, Figure 1-4 As shown, the docking mechanism includes threaded holes provided on two side walls of the sliding trolley A12 toward the middle of one end of the sliding trolley B, the axis of the threaded hole is parallel to the bottom plate of the second support body and extends into the side wall, a cast iron rod 23 is screwed into the threaded hole, and a truncated cone-shaped guide head is provided at the end of the cast iron rod 23. The docking mechanism also includes a docking hole 24 provided on two side walls of the sliding trolley B toward the middle of one end of the sliding trolley A, an electromagnet 25 is provided at the bottom of the docking hole 24, and the sliding trolley B is provided with a power socket for powering the electromagnet and an adjustment button for controlling the power of the electromagnet.

[0040] In a further embodiment, Figure 1-4As shown, the inner surface of the arc-shaped positioning plate 13 is arranged in a matrix with a plurality of ball grooves (not marked in the figure), in which balls 14 are rollingly connected, and the tops of the balls 14 protrude from the upper ports of the ball grooves to facilitate the movement of the pipeline.

[0041] In a further embodiment, Figure 1-4 As shown, the rope 8, when being straightened by the pulling cylinder 6, has elasticity sufficient to ensure that the displacement range of the truncated cone guide head is always within the range projected from the docking hole 24 to one side of the sliding trolley A. That is, the straightening of the rope is the preliminary positioning between the trolleys, and within this range, the precise positioning between the trolleys can be further achieved.

[0042] In a further embodiment, Figure 1-4 As shown, four laser ranging sensors (not shown in the figure) are respectively provided at one end facing the same direction as the working platform A1 and the working platform B2, and detection plates 19 used in conjunction with the four laser ranging sensors are respectively provided at the other ends of the working platform A1 and the working platform B2. When the distances detected by the four laser ranging sensors are consistent, it represents that the working platform A1 and the working platform B2 are facing each other.

[0043] Based on the above embodiments, this embodiment discloses: a pipeline installation method for pipeline installation equipment, such as Figure 1-4 As shown, the following steps are included:

[0044] Step 1: Set the work platform A1 and the work platform B2 relative to each other, and adjust the adjustable height support feet 11 so that the bottom upper surfaces of the two first support bodies are in the same horizontal plane, and at the same time, make the distances detected by the four laser distance measuring sensors consistent, and the preparation work is completed at this time; it can be understood that the opposite ends of the work platform A1 and the work platform B2 can be offset, or can be made into one piece;

[0045] Step 2: Place the sliding trolley A12 in the working platform A1, and the sliding trolley B in the working platform B2. Use a lifting device (not shown) to place the first section of the pipe to be installed 22 on the multiple arc-shaped positioning plates 13 on the sliding trolley B, so as to achieve the initial positioning of the first section of the pipe to be installed 22 relative to the sliding trolley B; then use the lifting device to place the second section of the pipe to be installed 21 on the multiple arc-shaped positioning plates 13 of the sliding trolley A12, so as to achieve the initial positioning of the second section of the pipe to be installed 21 relative to the sliding trolley A12;

[0046] Step 3, clamp the second U-shaped clamping plate 3 with the outer end setting position of the top of the working platform A1, clamp the first U-shaped clamping plate 4 with the outer end setting position of the top of the working platform B2, pass the rope 8 through the guide hole 10 on the side in turn and connect it with the corresponding pulling cylinder 6. Under the pulling force of the pulling cylinder 6, the rope 8 is tightened, and the sliding trolley A12 and the sliding trolley B drive the second section of the pipeline to be installed 21 and the first section of the pipeline to be installed 22 to be coaxially opposite; push the opposite ends of the first section of the pipeline to be installed 22 and the second section of the pipeline to be installed 21 to move inward until the bottom of the joint of the first section of the pipeline to be installed 22 and the second section of the pipeline to be installed 21 are aligned with the inner end of the sliding trolley B or the sliding trolley A12, respectively. Figure 3 As shown, interference is avoided during docking;

[0047] Step 4: In order to overcome the defect of uneven mass distribution of the outer wall caused by the preparation process of the pipeline to be installed, the fixing mechanism is started, and the two electric cylinders 16 of the same group are extended to the same length, and the first section of the pipeline to be installed 22 and the second section of the pipeline to be installed 21 are fixed relative to the sliding trolley B or the sliding trolley A through the two arc-shaped pressing plates 18. At this time, the generatrix of the pipeline to be installed is aligned with the generatrix of the arc-shaped positioning plate 13;

[0048] Step 5. Under the guidance of the rope 8, the sliding trolley A12 and the sliding trolley B are moved toward each other, and the cast iron rod 23 is rotated out to a set length, wherein the set length refers to a length that matches the insertion depth of the joint of the first section of the pipe to be installed 22 and the second section of the pipe to be installed 21 under the hot melt condition; when hot melt is required, the hot melt operation of the joint is completed before the cast iron rod 23 is inserted into the docking hole 24, and then the cast iron rod 23 is inserted into the docking hole 24, and the electromagnet 25 with gradually increasing power tightens the joint by tightening the cast iron rod to complete the entire hot melt process; under welding conditions, the set length refers to that when the cast iron rod 23 and the electromagnet 25 are tightly sucked, the joint of the first section of the pipe to be installed 22 and the second section of the pipe to be installed 21 are tightly abutted, and welding is performed at this time;

[0049] Step 6: After the first section of the pipeline to be installed 22 and the second section of the pipeline to be installed 21 are butt-jointed, the fixing mechanism is released, and the working platform A1 and the working platform B2 are moved toward the side of the second section of the pipeline to be installed 21. Figure 4As shown, the first section of the pipeline to be installed is exposed and supported by a temporary support frame 27, the height and level of the working platform A1 and the working platform B2 are adjusted so that the two are facing each other, and the second section of the pipeline to be installed is placed on the arc-shaped positioning plate 13 of the sliding trolley B2, and the lifting device places the third section of the pipeline to be installed on the arc-shaped positioning plate 13 of the sliding trolley A12, and the above steps are repeated to perform docking installation between the third section of the pipeline to be installed and the second section of the pipeline to be installed, and so on. After all pipelines are installed, the working platform A1 and the working platform B2 together with the sliding trolley A12 and the sliding trolley B are moved out of all pipelines;

[0050] Step 7: Remove the temporary support frame 27 by using the lifting equipment, and place the installed pipe at the designated location on the construction ground.

Claims

1. A pipeline installation device, characterized by: It includes a working platform A and a working platform B. The bottoms of the working platforms A and B are respectively provided with adjustable height support legs. The working platforms A and B are respectively provided with sliding trolleys A and B. The bottoms of the sliding trolleys A and B are respectively arranged with multiple arc-shaped positioning plates along the length direction. The multiple arc-shaped positioning plates have the same structure and are coaxially arranged. The curvature of the arc-shaped positioning plates is smaller than the curvature of the pipes to be installed. The pipes to be installed are placed in the multiple arc-shaped positioning plates. Due to the action of gravity, the busbars at the bottom ends of the pipes to be installed are in contact with the busbars at the bottom ends of the inner surfaces of the arc-shaped positioning plates, so as to realize the preliminary positioning of the pipes to be installed relative to the sliding trolley A or the sliding trolley B. The two busbars are parallel to the center dividing line of the bottom plate of the sliding trolley A or the sliding trolley B and the side walls on both sides of the bottom plate. The side walls A plurality of guide rods are provided in the longitudinal direction at the top, and guide holes are provided at the tops of the guide rods. The inner diameters of the guide holes of the sliding trolley A and the sliding trolley B are consistent, and the vertical distances of the hole centers relative to the bottom upper surface of the working platform A or the working platform B are the same. The guide holes on the same side of the sliding trolley A or the sliding trolley B are coaxial, and the guide holes on both sides of the sliding trolley A and the sliding trolley B are respectively connected in series through flexible guide members, and when the flexible guide members are straightened, the coaxial relative position of two pipes to be installed is realized. The coaxial relative position has an error within the control range due to the elasticity of the flexible guide members. The inner sides of the sliding trolley A and the sliding trolley B are respectively provided with fixing mechanisms for further fixing the pipes to be installed, and the opposite ends of the sliding trolley A and the sliding trolley B are provided with docking mechanisms for docking and tightening the two pipes and finally accurately positioning them.

2. A pipeline installation device as claimed in claim 1, characterized in that: The working platform A and the working platform B have the same structural dimensions and both include a first support body with a U-shaped cross-section and open front and rear ends. The four corners of the bottom end of the first support body are provided with adjustable height support legs. The bottom ends of the adjustable height support legs are provided with a first universal wheel with a brake. A spirit level is installed on the first support body. The sliding trolley A and the sliding trolley B have the same structure, and their bottom plate and side walls constitute a second support body of a U-shaped structure. Second universal wheels are provided at the four corners of the bottom end of the bottom plate to enable the sliding trolley A and the sliding trolley B to slide on the inner surface of the bottom of the first support body. The length of the second support body is greater than the width of the first support body, and the inner surface of the bottom plate of the second support body is parallel to the inner surface of the bottom of the first support body.

3. A pipeline installation device as claimed in claim 2, characterized in that: The flexible guide member is a rope for passing through the guide hole, and the outer surface of the rope is gap-fitted with the inner surface of the guide hole. The ends of the two ropes facing the working platform B are commonly connected to a first U-shaped pallet, and the first U-shaped pallet is used to clamp with the outer end of the top of the working platform B; the other ends of the two ropes are commonly connected to a second U-shaped pallet, and the second U-shaped pallet is clamped with the outer end of the top of the working platform A; limit blocks are respectively provided on the tops of the two side walls of the working platform A or the working platform B where the opposite ends of the first U-shaped pallet and the second U-shaped pallet are located, so as to limit the first U-shaped pallet or the second U-shaped pallet from sliding inward, and pulling cylinders are respectively provided on both sides of the top of the second U-shaped pallet, which are arranged along the direction in which the ropes are straightened and are respectively connected to the rope ends on the same side. After the two ropes are straightened, they are used to provide guidance for the toward-toward movement of the sliding trolley A and the sliding trolley B.

4. A pipeline installation device as claimed in claim 3, characterized in that: There are multiple groups of fixing mechanisms, and each group of fixing mechanisms includes an electric cylinder horizontally arranged on the inner surfaces of the two side walls of the second support body. The fixed end of the electric cylinder is fixedly connected to a mounting plate preset on the inner surface of the side wall of the second support body by bolts. A plurality of threaded holes are arranged in a matrix on the mounting plate. The threaded holes are used to adjust the position of the electric cylinder in the up and down, front and back directions. The telescopic end of the electric cylinder is detachably connected with an arc pressure plate. The two opposing arc pressure plates are used to clamp the pipe to be installed. The arc pressure plate is provided with a variety of models according to the size of the pipe to be installed.

5. A pipeline installation device as claimed in claim 4, characterized in that: The docking mechanism includes a threaded hole provided on the two side walls of the sliding trolley A toward the middle of one end of the sliding trolley B, the axis of the threaded hole is parallel to the bottom plate of the second support body and extends into the side wall, a cast iron rod is screwed into the threaded hole, and a truncated cone guide head is provided at the end of the cast iron rod. The docking mechanism also includes a docking hole provided on the two side walls of the sliding trolley B toward the middle of one end of the sliding trolley A, an electromagnet is provided at the bottom of the docking hole, and the sliding trolley B is provided with a power socket for powering the electromagnet and an adjustment button for controlling the power of the electromagnet.

6. A pipeline installation device as claimed in claim 5, characterized in that: The inner surface of the arc-shaped positioning plate is provided with a plurality of ball grooves arranged in a matrix, and balls are rollingly connected in the ball grooves, and the tops of the balls protrude from the upper ports of the ball grooves.

7. A pipeline installation device as claimed in claim 6, characterized in that: When the rope is straightened by the pulling cylinder, its elasticity satisfies: the displacement range of the truncated cone guide head is always within the range projected from the docking hole to one side of the sliding trolley A.

8. A pipeline installation device as claimed in claim 7, characterized in that: The working platform A and the working platform B are provided with four laser ranging sensors at one end facing the same direction, and the working platform A and the working platform B are provided with detection plates used in conjunction with the four laser ranging sensors at the other ends. When the distances detected by the four laser ranging sensors are consistent, it means that the working platform A and the working platform B are facing each other.

9. The assembly line installation method of a pipeline installation device according to claim 8, characterized in that: The steps include: Step 1: Set the work platform A and the work platform B relative to each other, and adjust the height-adjustable support feet so that the bottom upper surfaces of the two first support bodies are in the same horizontal plane. At the same time, make the distances detected by the four laser distance measuring sensors consistent. At this time, the preparation work is completed; Step 2: Place the sliding trolley A in the working platform A, place the sliding trolley B in the working platform B, and use the lifting equipment to place the first section of the pipe to be installed on the multiple arc-shaped positioning plates on the sliding trolley B to achieve the initial positioning of the first section of the pipe to be installed relative to the sliding trolley B; then use the lifting equipment to place the second section of the pipe to be installed on the multiple arc-shaped positioning plates of the sliding trolley A to achieve the initial positioning of the second section of the pipe to be installed relative to the sliding trolley A; Step 3: Clamp the second U-shaped clamping plate with the outer end setting position of the top of the working platform A, clamp the first U-shaped clamping plate with the outer end setting position of the top of the working platform B, pass the ropes through the guide holes on the sides in turn and connect them to the corresponding pulling cylinders. Under the pulling force of the pulling cylinders, the ropes are tightened, and the sliding trolley A and the sliding trolley B drive the second section of the pipeline to be installed and the first section of the pipeline to be installed to be coaxially opposite; push the opposite ends of the first section of the pipeline to be installed and the second section of the pipeline to be installed to move inward until the bottom of the joint of the first section of the pipeline to be installed and the second section of the pipeline to be installed are aligned with the inner end of the sliding trolley B or the sliding trolley A respectively; Step 4: In order to overcome the defect of uneven mass distribution of the outer wall caused by the preparation process of the pipeline to be installed, the fixing mechanism is started, and the two electric cylinders in the same group are extended to the same length, and the first section of the pipeline to be installed and the second section of the pipeline to be installed are fixed relative to the sliding trolley B or the sliding trolley A through two arc-shaped pressing plates. At this time, the generatrix of the pipeline to be installed is aligned with the generatrix of the arc-shaped positioning plate; Step 5. Under the guidance of the rope, move the sliding trolley A and the sliding trolley B toward each other, and rotate the cast iron rod to a set length. The set length refers to the length that matches the insertion depth of the joint of the first section of the pipe to be installed and the second section of the pipe to be installed under the hot melt condition; when hot melt is required, the hot melt operation of the joint is completed before the cast iron rod is inserted into the docking hole, and then the cast iron rod is inserted into the docking hole, and the electromagnet with gradually increased power tightens the joint by tightening the cast iron rod to complete the entire hot melt process; under welding conditions, the set length refers to the joint of the first section of the pipe to be installed and the second section of the pipe to be installed tightly abut when the cast iron rod is tightly attracted by the electromagnet; Step 6. After the first section of the pipeline to be installed and the second section of the pipeline to be installed are butt-jointed, the fixing mechanism is released, and the working platform A and the working platform B are moved to the side of the second section of the pipeline to be installed to expose the first section of the pipeline to be installed, and supported by a temporary support frame, and the height and level of the working platform A and the working platform B are adjusted to make them face each other, and the second section of the pipeline to be installed is placed on the arc-shaped positioning plate of the sliding trolley B. The lifting equipment places the third section of the pipeline to be installed on the arc-shaped positioning plate of the sliding trolley A, and the above steps are repeated to perform the butt-joint installation between the third section of the pipeline to be installed and the second section of the pipeline to be installed, and so on. After all the pipelines are installed, the working platform A and the working platform B together with the sliding trolley A and the sliding trolley B are moved out of all the pipelines; Step 7. With the help of lifting equipment, remove the temporary support frame and place the installed pipes at the designated location on the construction ground.

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