CN212292494U

CN212292494U - Portal frame

Info

Publication number: CN212292494U
Application number: CN202021272282.8U
Authority: CN
Inventors: 刘同军; 王大陆; 张童; 杜海顺; 公维林
Original assignee: Power China Shandong Pipeline Engineering Corp ltd
Current assignee: Power China Shandong Pipeline Engineering Corp ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-01-05
Anticipated expiration: 2030-07-01

Abstract

The utility model relates to a pipeline installation equipment technical field especially relates to a portal frame. The portal frame is used for installing pipelines and comprises a frame body mechanism, a lifting mechanism and a traveling mechanism; a hoisting channel which is communicated along a first direction is formed in the frame body mechanism, the lifting mechanism is arranged on the frame body mechanism and is positioned in the hoisting channel, and the lifting mechanism can lift the pipeline to lift the pipeline; the travelling mechanism comprises a travelling wheel assembly, a track assembly and a conveying assembly, the track assembly comprises two groups of travelling tracks which are detachably connected along a first direction, and the travelling wheel assembly is arranged at the bottom of the frame body mechanism; the reverse transportation assembly can hoist the walking tracks along the first direction so that the two groups of walking tracks alternately support the walking wheel assemblies. The portal frame integrates the functions of pipeline alignment, butt joint and equipment self-walking, improves the working efficiency, saves equipment investment, and is convenient and energy-saving.

Description

Portal frame

Technical Field

The utility model relates to a pipeline installation equipment technical field especially relates to a portal frame.

Background

Prestressed reinforced concrete pipe (PCCP) is a water pipe made by winding hoop prestressed steel wire on a high-strength concrete pipe core with a steel cylinder and spraying a compact cement mortar protective layer on the steel wire. Has the characteristics of high compression resistance, corrosion resistance, high sealing property, high strength, high impermeability and the like. The pressure-type water-saving pipeline is widely applied to long-interval water delivery main lines, urban water supply projects, industrial pressure water delivery main lines, pressure pollution discharge main pipes and the like.

In the installation process of the PCCP, a groove is dug, and then the pipeline is hoisted on an installation line through a truck crane or a crawler crane and is distributed along an installation axis inside the groove.

In the process of butt joint installation of pipelines in the related art, a crane is needed to lift the pipelines, a commander instructs a driver, then the socket end of the PCCP is adjusted to be accurately aligned with the socket end of the installed pipeline through lifting of a main hook and amplitude variation control of an arm support, and then the socket end is inserted into the socket end of the installed pipeline through special pulling equipment and a professional method. The whole process needs comprehensive cooperation of a truck crane or a crawler crane, the mechanical equipment occupancy rate is high, the operation is complex, and the installation efficiency of the pipeline is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portal frame to need truck crane or crawler crane to cooperate comprehensively in the pipeline installation process who solves to a certain extent existence among the prior art, lead to mechanical equipment occupancy height, the technical problem that the installation effectiveness of operation complicacy and pipeline is low.

In order to achieve the above object, the present invention provides the following technical solutions;

based on the purpose, the utility model provides a portal frame for install the pipeline, the portal frame includes support body mechanism, lifting gear and running gear;

a hoisting channel which is communicated along a first direction is formed in the frame body mechanism, the lifting mechanism is arranged on the frame body mechanism and is positioned in the hoisting channel, and the lifting mechanism can lift a pipeline to lift the pipeline;

the travelling mechanism comprises a travelling wheel assembly, a track assembly and a conveying assembly, the track assembly comprises two groups of travelling tracks which are detachably connected along the first direction, and the travelling wheel assembly is arranged at the bottom of the frame body mechanism;

the conveying assembly can lift the walking rails along the first direction, so that the two groups of walking rails alternately support the walking wheel assemblies.

In any of the above technical solutions, optionally, the transportation component includes a hanger body, a trolley and a hanger, the hanger is disposed on the trolley, the hanger body is provided with a transportation rail extending along the first direction, and the trolley is movably disposed in the transportation rail.

In any of the above technical solutions, optionally, each group of the walking tracks includes a first walking track and a second walking track arranged along a second direction;

the two conveying assemblies are respectively arranged on two sides of the frame body mechanism along the second direction; wherein the second direction is perpendicular to the first direction.

In any of the above technical solutions, optionally, the lifting mechanism includes two hydraulic lift cylinder assemblies and a support cable arranged along the second direction, and two ends of the support cable are detachably connected to the driving rods of the two hydraulic lift cylinder assemblies respectively; the cylinder bodies of the two lifting hydraulic cylinder assemblies are pivoted with the frame body mechanism along a pivot axis, and the pivot axis extends along the first direction.

In any of the above technical solutions, optionally, the hydraulic cylinder assembly includes a plurality of hydraulic cylinders arranged in sequence along the first direction;

the lifting mechanism further comprises a pump station and an electromagnetic valve assembly, and the electromagnetic valve assembly is connected between the pump station and the lifting hydraulic cylinder so that the pump station can control the lifting hydraulic cylinder to work.

In any of the above technical solutions, optionally, the frame body mechanism includes a gantry beam, a walking main beam, and two sets of gantry columns;

the two groups of gantry upright columns are arranged at intervals along the second direction, and each group of gantry upright columns comprises a first upright column and a second upright column; the gantry beams are sequentially connected in an encircling manner to form a beam frame, and the top of the first upright column and the top of the second upright column are both connected with the beam frame;

every group support between the bottom of the first stand of portal stand and the bottom of second stand has the walking girder, the walking wheel subassembly set up in the walking girder.

In any of the above technical solutions, optionally, the frame body mechanism further includes a first support rod, a second support rod, a third support rod, a fourth support rod and a fifth support rod;

a plurality of first support rods are connected to the interior of the cross beam frame and are mutually crossed;

the second support rods are connected between the gantry beam and the first upright post and between the gantry beam and the second upright post respectively;

a plurality of third support rods are connected between the first upright post and the second upright post, and the third support rods are mutually crossed;

the fourth support rod extending along the first direction is connected between the top of the first upright post and the top of the second upright post;

and the fifth support rod is connected between the first upright column and the walking main beam and between the second upright column and the walking main beam respectively.

In any of the above technical solutions, optionally, the hanger body includes a first pull rod, a second pull rod, and a load-bearing beam, the load-bearing beam extends in a linear or curved shape along the first direction, both ends of the load-bearing beam are hung on the gantry cross beam through the first pull rod, and a middle portion of the load-bearing beam is connected to the first upright and the second upright through the second pull rod.

In any of the above technical solutions, optionally, the gantry further includes a generator, a control system, and an illumination lamp, the generator is disposed at the bottom of the gantry upright, the illumination lamp is disposed at the top of the gantry upright, and both the generator and the illumination lamp are electrically connected to the control system.

In any of the above technical solutions, optionally, the frame body mechanism further includes a ladder stand, and the ladder stand is disposed on the first upright column or the second upright column.

Adopt above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model provides a portal frame for the installation pipeline, this portal frame includes support body mechanism, lifting gear and running gear. The lifting mechanism is arranged on the frame body mechanism and can lift the pipeline and enable the pipeline to be lifted, so that the pipeline to be installed is aligned with the installed pipeline. In addition, the travelling mechanism comprises a travelling wheel assembly, a track assembly and a conveying assembly, so that on one hand, the frame body mechanism can move along the track assembly, and the aligned pipeline to be installed can be butted with the installed pipeline by pushing the frame body mechanism; on the other hand, the rail assembly comprises a first walking rail and a second walking rail, and the transfer mechanism can transfer the second walking rail from the back to the front of the first walking rail so that the second walking rail corresponds to the next station of the frame body mechanism, so that periodical continuous walking can be realized without the input of other equipment such as an automobile crane, and the continuous work of pipeline installation is realized. The portal frame integrates the functions of pipeline alignment, butt joint and equipment self-walking, improves the working efficiency, saves equipment investment, and is convenient and energy-saving.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a portal frame according to an embodiment of the present invention;

FIG. 2 is a schematic view of the gantry of FIG. 1 in a state of transport;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a left side view of FIG. 1;

fig. 5 is a schematic view of the gantry of fig. 4 in a hoisting state.

Icon: 1-a gantry upright post; 100-a first column; 101-a second upright; 2-a fifth brace rod; 3-a walking wheel assembly; 4-a walking main beam; 5-a track assembly; 50-a first set of travel tracks; 51-a second set of travel tracks; 6-gantry beam; 7-a second brace bar; 8-a fourth brace bar; 9-a third brace rod; 10-climbing a ladder; 11-a first brace bar; 12-a trolley; 13-a second tie rod; 14-a spandrel girder; 15-a first tie rod; 16-a generator; 17-a pump station; 18-a hydraulic lift cylinder assembly; 180-pivot axis; 19-a pipeline; 20-a supporting cable; 21-a lifting appliance.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

The portal frame provided by the embodiment is used for installing pipelines, in particular PCCP pipelines.

Referring to fig. 1 to 5, the portal frame provided in this embodiment includes a frame body mechanism, a lifting mechanism, and a traveling mechanism.

The inside hoist and mount passageway that link up along the first direction that forms of support body mechanism, wherein, the first direction is the butt joint direction between pipeline and the pipeline, and a in referring to fig. 2 is the first direction, and hoist and mount passageway provides the passageway for pipeline and pipeline 19 along the butt joint and the installation of first direction.

The lifting mechanism is arranged in the frame body mechanism and located in the hoisting channel, the lifting mechanism can lift the pipeline 19 to enable the pipeline 19 to lift, and the pipeline 19 is lifted through the lifting mechanism, so that the aim of aligning the pipeline to be installed with the installed pipeline is fulfilled.

The travelling mechanism comprises a travelling wheel assembly 3, a track assembly 5 and a conveying assembly. Track subassembly 5 includes can dismantle two sets of walking tracks of connection along the first direction, and walking wheel subassembly 3 sets up in the bottom of support body mechanism, and the first direction handling walking track can be followed to the component of transporting to make two sets of walking tracks support walking wheel subassembly 3 in turn. Specifically, the two sets of traveling rails are a first set of traveling rail 50 and a second set of traveling rail 51, respectively, and at the current installation station, the frame body mechanism is located at the first set of traveling rail 50, the second set of traveling rail 51 is located in front of the first set of traveling rail 50, and the second set of traveling rail 51 corresponds to the next installation station. After the pipeline installation work under the current installation station is completed, the frame body mechanism moves from the first group of walking rails 50 to the second group of walking rails 51 to perform the pipeline installation work of the next installation station, at the moment, the first group of walking rails 50 are idle, and the first group of walking rails 50 are lifted, transported and placed through the reverse transportation assembly, so that the first group of walking rails 50 move to the front of the second group of walking rails 51, and the frame body mechanism moves to the next installation station to perform the work.

Optionally, the walking mechanism further comprises a power transmission assembly capable of driving the walking wheel assembly 3 to rotate, so that the gantry realizes self-walking.

The portal frame in the embodiment comprises a frame body mechanism, a lifting mechanism and a traveling mechanism. The lifting mechanism is arranged on the frame body mechanism, and can lift the pipeline 19, so that the pipeline to be installed is aligned with the installed pipeline. In addition, the travelling mechanism comprises a travelling wheel assembly 3, a track assembly 5 and a conveying assembly, on one hand, the frame body mechanism can move along the track assembly 5, so that the aligned pipeline to be installed can be butted with the installed pipeline by pushing the frame body mechanism; on the other hand, the rail assembly 5 includes a first traveling rail and a second traveling rail, and the transfer mechanism can transfer the second traveling rail from the rear to the front of the first traveling rail so that the second traveling rail corresponds to the next station of the frame mechanism, and thus the periodic continuous traveling can be realized without the input of other equipment such as truck cranes, and the continuous operation of installing the pipeline 19 can be realized. The portal frame integrates the alignment and butt joint of the pipeline 19 and the self-walking function of the equipment, improves the working efficiency, saves the equipment investment, and is convenient and energy-saving.

In an alternative of this embodiment, each set of walking rails includes a first walking rail and a second walking rail arranged along a second direction; wherein the second direction is perpendicular to the first direction, which is shown in b in fig. 3. The two walking tracks can improve the walking stability of the frame body mechanism.

The quantity of the transporting components is two, the two transporting components are respectively arranged on two sides of the frame body mechanism along the second direction, and the first walking track and the second walking track are lifted, transported and placed in a one-to-one correspondence mode through the two transporting components.

Optionally, a centerline of the first and second running rails in the second direction coincides with an axis of the frame mechanism in the second direction.

In the alternative of this embodiment, the support body mechanism includes portal crossbeam 6, walking girder 4 and two sets of portal stands 1.

Two sets of portal stand 1 set up along the second direction interval, form the hoist and mount passageway between two sets of portal stand 1. Each set of gantry columns 1 comprises a first column 100 and a second column 101, and the first column 100 and the second column 101 are arranged at intervals along a first direction. Optionally, the line connecting the two first uprights 100 and the two second uprights 101 is square.

A plurality of portal crossbeams 6 enclose in order and connect and form the crossbeam frame, and the top of first stand 100 and the top of second stand 101 all are connected with the crossbeam frame, can provide the mounted position for landing gear on the one hand through setting up the crossbeam frame, and on the other hand can strengthen the structural strength of two sets of portal stands 1. Optionally, the beam frame is a square beam frame, and the top of the first upright 100 and the top of the second upright 101 are both connected to the vertex of the beam frame.

A walking main beam 4 is supported between the bottom of the first upright column 100 and the bottom of the second upright column 101 of each group of gantry upright columns 1, and the walking wheel assembly 3 is arranged on the walking main beam 4.

Optionally, the road wheel assembly 3 comprises a road wheel body, an axle and a shock absorber.

In an alternative of this embodiment, the frame body mechanism further comprises a first stay bar 11, a second stay bar 7, a third stay bar 9, a fourth stay bar 8 and a fifth stay bar 2.

The internal connection of crossbeam frame has a plurality of intercrossing's first vaulting pole 11, can improve the resistance to deformation of crossbeam frame along first direction and second direction through setting up first vaulting pole 11.

Be connected with second vaulting pole 7 between the portal crossbeam 6 that extends along the second direction and first stand 100, be connected with second vaulting pole 7 between the portal crossbeam 6 that extends along the second direction and second stand 101 to through setting up second vaulting pole 7, can avoid first stand 100 and second stand 101 to take place to topple over along the second direction, improved the resistance to deformation ability of portal stand 1 along the second direction. Optionally, the connection position of the second stay bar 7 and the first upright 100 and the connection position of the door frame cross beam 6 are both close to the top end of the first upright 100, and the connection position of the second stay bar 7 and the second upright 101 and the connection position of the door frame cross beam 6 are both close to the top end of the second upright 101, so that the second stay bar 7 plays a role in structural reinforcement and avoids a hoisting channel as much as possible.

In a group of portal columns 1, a plurality of third support rods 9 are connected between the first column 100 and the second column 101, and the third support rods 9 are crossed with each other, so that the deformation resistance of the portal columns 1 along the first direction and the supporting strength of the portal columns 1 to the cross beam frame along the top-bottom direction are improved.

Optionally, the third struts 9 are connected to each other at their crossing positions to further improve the supporting strength to the girder frame.

Be connected with the fourth vaulting pole 8 that extends along the first direction between the top of first stand 100 and the top of second stand 101, first stand 100 and second stand 101 respectively with the walking girder 4 between be connected with fifth vaulting pole 2, through setting up fourth vaulting pole 8 and fifth vaulting pole 2, further improve the frame deformability of portal stand 1's top and bottom along the first direction.

Optionally, the joints between the first support rod 11, the second support rod 7, the third support rod 9, the fourth support rod 8, the fifth support rod 2, the first stand column 100, the second stand column 101 and the gantry beam 6 are detachably connected through flanges and bolts, so that the strength and the bearing capacity of the frame mechanism can be improved, and meanwhile, the frame mechanism is convenient to disassemble, assemble and transfer for transportation.

In the alternative of this embodiment, the frame body mechanism further includes a ladder stand 10, the ladder stand 10 is arranged on the first upright 100 or the second upright 101, and by arranging the ladder stand 10, the frame body mechanism is conveniently climbed by an operator to overhaul the lifting mechanism and the transporting mechanism of the portal frame.

In an alternative of this embodiment, the transportation component includes a hanger body, a trolley 12 and a hanger 21, the hanger 21 is disposed on the trolley 12, the hanger body is provided with a transportation rail extending along a first direction, and the trolley 12 is movably disposed in the transportation rail.

For example, when the first group of running rails 50 needs to be transported, the first group of running rails 50 is lifted by the lifting appliance 21, then the operator pushes the lifted first running rails to move the trolley 12 forward along the reverse running rails along the first direction under the action of thrust, and when the first running rails are pushed to the position corresponding to the next station, the first running rails are lowered by the lifting appliance 21, so that the front ends of the first running rails and the second running rails are butted and placed in the dug grooves. The reverse transportation assembly is simple in structure, has obvious applicability advantages in the field of pipeline construction, is easy to operate and is beneficial to popularization and use.

Optionally, the spreader 21 is a chain block.

In an alternative of this embodiment, the hanger body includes a first pull rod 15, a second pull rod 13, and a load-bearing beam 14 provided with a transportation rail, the load-bearing beam 14 extends in a linear or curved shape along a first direction, both ends of the load-bearing beam 14 are hung on the gantry beam 6 through the first pull rod 15, and the middle portion of the load-bearing beam 14 is connected to the first upright 100 and the second upright 101 through the second pull rod 13. The bearing performance of the bearing beam 14 in the full stroke range of the first direction can be ensured through the first pull rod 15 and the second pull rod 13.

Optionally, the two ends of the bearing beam 14 correspond to the mounting positions of the rail assemblies 5 along the second direction, and the middle part of the bearing beam 14 is U-shaped to avoid the outer contour of the frame body mechanism, so that the lifting position and the lower position of the lifting appliance 21 are ensured to correspond to the traveling rail assemblies 5, and the smoothness of the traveling path of the lifting appliance 21 can also be ensured.

Optionally, the length of the load beam 14 in the first direction is greater than the length of each set of running rails in the first direction, so as to improve the flexibility of the transportation of the running rails. Meanwhile, the first pull rod 15 is obliquely arranged to improve the reliability of hoisting.

In an alternative embodiment, the landing gear includes two hydraulic lift cylinder assemblies 18 arranged along the second direction and a support cable 20, and both ends of the support cable 20 are detachably connected to the driving rods of the two hydraulic lift cylinder assemblies 18, respectively. Specifically, after the frame body mechanism is pushed to a position corresponding to the pipeline 19 to be lifted, the driving rod of the hydraulic lifting cylinder assembly 18 is extended to a position corresponding to the bottom of the pipeline 19, one end of the bearing cable 20 is connected with one of the hydraulic lifting cylinder assemblies 18, then the other end of the bearing cable 20 is supported to penetrate through the pipeline 19 to be lifted, the other end of the bearing cable 20 is connected with the driving rod of the other hydraulic lifting cylinder assembly 18, and finally the driving rod of the hydraulic lifting cylinder assembly 18 is shortened to lift the pipeline 19.

The cylinders of the two hydraulic lift cylinder assemblies 18 are pivotally connected to the frame mechanism along a pivot axis 180, the pivot axis 180 extending in a first direction. Through the flexible degree of the cylinder pole of controlling two hydraulic cylinder subassemblies 18 for the cylinder body, on the one hand can make hydraulic cylinder subassembly 18 change with the contained angle of cylinder body and second direction along with the flexible degree of actuating lever to make the contact length between bearing cable 20 and the pipeline 19 maximize all the time, on the other hand can adjust the height of the axis of pipeline 19 in the hoist and mount and the position along the second direction, so that the socket end of waiting to install the pipeline and the socket end of having installed the pipeline dock high-efficiently and accurately.

According to the technical scheme of the four chain blocks in the prior art, the position of the pipeline needs to be adjusted by manually operating the chain blocks so as to position the socket of the pipeline, the efficiency is low, the labor intensity is high, the pipeline is inconvenient to control, and an operator stands beside the pipeline and has safety implication. Hoist and mount and aim at pipeline 19 through two hydraulic cylinder subassemblies 18, compare in the scheme that the worker passes through four chain block adjusting position, have work efficiency height, easy operation and high advantage of security.

In an alternative to this embodiment, the hydraulic lift cylinder assembly 18 includes a plurality of hydraulic lift cylinders arranged in series in a first direction.

The lifting mechanism further comprises a pump station 17 and a solenoid valve assembly, wherein the solenoid valve assembly is connected between the pump station 17 and the lifting hydraulic cylinder, so that the pump station 17 can control the lifting hydraulic cylinder to work. Specifically, the solenoid valve assembly can control the plurality of lifting hydraulic cylinders to extend and retract cooperatively, and can also control a certain lifting hydraulic cylinder to extend and retract independently, so that the position of the pipeline 19 can be adjusted accurately.

Optionally, the hydraulic cylinder assembly 18 comprises two hydraulic cylinders, and the distance between the two hydraulic cylinders along the first direction is less than the total length of the pipeline 19 and greater than two thirds of the total length of the pipeline 19, so as to meet the requirement of adjusting the position of the pipeline 19 on the premise of using as few hydraulic cylinders as possible.

Optionally, the support cable 20 is a steel wire rope or a steel chain, a connecting ring or a connecting hook is disposed at an end of the driving rod of the hydraulic cylinder, which is far away from the cylinder body, and two ends of the support cable 20 are detachably connected to the connecting ring or the connecting hook of the hydraulic cylinder through snap rings respectively.

In the optional scheme of this embodiment, the portal frame further includes a generator 16, a control system and a lighting fixture, the generator 16 is disposed at the bottom of the portal column 1, the lighting fixture is disposed at the top of the portal column 1, and both the generator 16 and the lighting fixture are electrically connected to the control system. On one hand, the portal frame is provided with the generator 16, an external power supply is not needed, and the adaptability to the construction environment is improved; on the other hand, in the technical scheme of using the truck crane in the prior art, due to the view and safety considerations, a large range of illumination is required, so that the construction at night is difficult, and compared with the arrangement of the illumination lamp, the gantry reduces the illumination range required by the illumination lamp due to the advantages of the compact structure and the functional integration of the gantry, so that the night work can be realized.

Alternatively, the generator 16 is a diesel generator, which is low cost fuel and powerful.

Optionally, the control system is electrically connected to the solenoid valve assembly to control the solenoid valve assembly to cooperatively commutate.

Alternatively, the pumping station 17 comprises an electric motor and a hydraulic pump driven by the electric motor, the electric motor being supplied with power by the engine.

Example two

The second embodiment provides a pipeline installation method, the second embodiment comprises the portal frame in the first embodiment, the technical features of the portal frame disclosed in the first embodiment are also applicable to the second embodiment, and the technical features of the portal frame disclosed in the first embodiment are not repeatedly described.

With reference to fig. 1 to 5, the pipeline installation method provided in this embodiment adopts the portal frame in the first embodiment to perform pipeline installation operation, and the pipeline installation method specifically includes the following steps:

s101, arranging a plurality of pipelines 19 in sequence along the dug groove;

s102, hoisting the track assembly into the groove by using a truck crane or a crawler crane and arranging the track assembly along a first direction, so that the frame body mechanism is arranged on the track assembly 5 through the traveling wheel assembly;

s103, pushing the portal frame to a current station, and hoisting and aligning the pipeline to be installed through a lifting mechanism;

s104, mounting the pipeline to be mounted to a target position;

s105, continuously connecting the second group of travelling rails 51 to the front ends of the first group of travelling rails 50 through the reverse conveying mechanism;

and S106, repeating the steps S103 to S105 until all the pipelines 19 are installed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention. Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

Claims

1. A portal frame is used for installing pipelines and is characterized by comprising a frame body mechanism, a lifting mechanism and a traveling mechanism;

2. The gantry of claim 1, wherein the transfer assembly includes a hanger body, a trolley, and a spreader disposed on the trolley, the hanger body is provided with a transfer track extending in the first direction, and the trolley is movably disposed within the transfer track.

3. The gantry of claim 2, wherein each set of said travel rails comprises a first travel rail and a second travel rail arranged in a second direction;

4. The gantry of claim 3, wherein the lifting mechanism comprises two hydraulic lifting cylinder assemblies and a supporting cable arranged along the second direction, and two ends of the supporting cable are detachably connected with driving rods of the two hydraulic lifting cylinder assemblies respectively; the cylinder bodies of the two lifting hydraulic cylinder assemblies are pivoted with the frame body mechanism through a pivot axis, and the pivot axis extends along the first direction.

5. The gantry of claim 4, wherein said hydraulic lift cylinder assembly comprises a plurality of hydraulic lift cylinders arranged in series along said first direction;

6. The gantry of claim 4, wherein said frame mechanism comprises a gantry beam, a walking main beam, and two sets of gantry columns;

the two groups of gantry upright columns are arranged at intervals along the second direction, and each group of gantry upright columns comprises a first upright column and a second upright column;

the gantry beams are sequentially connected in an encircling manner to form a beam frame, and the top of the first upright column and the top of the second upright column are both connected with the beam frame;

7. The gantry of claim 6, wherein said frame mechanism further comprises a first brace, a second brace, a third brace, a fourth brace, and a fifth brace;

a plurality of first support rods which are mutually crossed are connected inside the cross beam frame;

the second support rods are connected between the gantry beam extending along the second direction and the first upright post and between the gantry beam and the second upright post respectively;

8. The gantry of claim 6, wherein the hanger body comprises a first pull rod, a second pull rod and a bearing beam provided with the transportation rail, the bearing beam extends in a linear or curved shape along the first direction, two ends of the bearing beam are hung on the gantry beam through the first pull rod, and the middle part of the bearing beam is respectively connected with the first upright and the second upright through the second pull rod.

9. The gantry of claim 6, further comprising a generator, a control system and a lighting fixture, wherein the generator is disposed at the bottom of the gantry column, the lighting fixture is disposed at the top of the gantry column, and both the generator and the lighting fixture are electrically connected to the control system.

10. The gantry of claim 6, wherein the frame body mechanism further comprises a ladder disposed on the first column or the second column.