CN113605448A - Assembling machine and assembling process for bottom layer structure of rail transit station - Google Patents

Abstract

The invention provides an assembling machine and an assembling process for a bottom layer structure of a rail transit station, and relates to the technical field of construction equipment of the rail transit station, wherein the assembling machine comprises a rack, a driving device, a lifting device and an assembling device; the frame comprises a machine arm, a front supporting leg, a middle supporting leg, a rear supporting leg, a first telescopic piece and at least one second telescopic piece, wherein the front supporting leg, the middle supporting leg and the rear supporting leg are respectively connected with the machine arm and support the machine arm; the driving device is arranged on the middle supporting leg and/or the rear supporting leg and is suitable for driving the rack to move; the hoisting device and the splicing device are respectively connected with the machine arm in a sliding mode, the hoisting device is suitable for hoisting the prefabricated part, and the splicing device is suitable for splicing the prefabricated part. According to the invention, the prefabricated parts with several rings at the tail can be spliced without spending a large amount of time and manually disassembling or moving the splicing machine, so that the splicing efficiency of the bottom layer structure of the rail transit station can be improved.

Description

Assembling machine and assembling process for bottom layer structure of rail transit station

Technical Field

The invention relates to the technical field of construction equipment of rail transit stations, in particular to an assembling machine and an assembling process for a bottom layer structure of a rail transit station.

Background

With the increase of urban population, rail transit is a travel mode which can well relieve urban traffic pressure. The construction of rail transit station, for example subway station, has often adopted the mode of cast in situ before, and not only construction conditions are abominable, are difficult to ensure safety, and construction cycle is longer moreover, needs to invest a large amount of manpowers, causes the cost higher. In order to improve the construction speed and solve the problem of longer construction period of rail transit engineering, more and more rail transit stations are selected for assembly type construction. The assembly type construction generally includes erecting assembly equipment in a foundation pit, transporting each prefabricated part of a station to the lower portion of the assembly equipment from the outside of a field through transportation equipment, and installing the prefabricated part at a proper position in the foundation pit through the assembly equipment.

Because there is certain discrepancy in elevation between the bottom of foundation ditch and the platform plane, when current equipment of assembling assembled the position at foundation ditch end, its landing leg support has taken the position of assembling of several rings of prefabricated component at the end bottom the foundation ditch, need spend a large amount of time and artifical dismantlement or remove and assemble equipment and vacate the space and assemble the prefabricated component again to make whole efficiency of construction lower.

Disclosure of Invention

The invention solves the problem of how to improve the assembly efficiency of the bottom layer structure of the rail transit station.

In order to solve the above problems, the present invention provides an assembling machine for a rail transit station substructure, comprising:

the support comprises a frame, a support frame and a support frame, wherein the frame comprises a machine arm, a front supporting leg, a middle supporting leg, a rear supporting leg, a first telescopic piece and at least one second telescopic piece, the front supporting leg, the middle supporting leg and the rear supporting leg are respectively connected with the machine arm and support the machine arm, the first telescopic piece is suitable for driving the front supporting leg to stretch and retract, and the second telescopic piece is suitable for driving the middle supporting leg and/or the rear supporting leg to stretch and retract;

the driving device is arranged on the middle supporting leg and/or the rear supporting leg and is suitable for driving the rack to move;

the lifting device and the splicing device are respectively connected with the machine arm in a sliding mode, the lifting device is suitable for lifting the prefabricated part, and the splicing device is suitable for splicing the prefabricated part.

Optionally, the first telescopic part is arranged on the front leg, the second telescopic part is arranged on the rear leg and is suitable for driving the rear leg to stretch and contract, and the driving device is arranged on the middle leg.

Optionally, the driving device includes a third telescopic member and a connecting seat, in the length direction of the frame, one end of the third telescopic member is connected to the middle support leg, the other end of the third telescopic member is connected to the connecting seat, and the connecting seat is adapted to be fixedly connected to the spliced prefabricated component.

Optionally, the hoisting device includes a first hoisting assembly, a second hoisting assembly and a hoisting main beam, the hoisting main beam is slidably connected to the boom in the length direction of the frame, the first hoisting assembly and the second hoisting assembly are respectively slidably connected to the hoisting main beam in the width direction of the frame, the prefabricated members include a first prefabricated member and a second prefabricated member, the first hoisting assembly is adapted to hoist the first prefabricated member, and the second hoisting assembly is adapted to hoist the second prefabricated member.

Optionally, the first hoisting assembly includes a first hoisting trolley, a first traverse cylinder, a first hoisting cylinder, and a first hoisting chain, the first hoisting trolley is disposed in the middle of the main hoisting beam and slidably connected to the main hoisting beam in the width direction of the rack, one end of the first traverse cylinder is connected to the main hoisting beam, the other end of the first traverse cylinder is connected to the first hoisting trolley, one end of the first hoisting cylinder is connected to the first hoisting trolley in the height direction of the rack, the other end of the first hoisting cylinder is connected to the first hoisting chain, and the first hoisting chain is adapted to be connected to the first prefabricated component.

Optionally, the second hoisting assembly comprises a second hoisting trolley, a second traverse oil cylinder, a second hoisting oil cylinder and a second hoisting chain, and in the width direction of the rack, the second hoisting trolley is arranged on the side part of the hoisting main beam and is in sliding connection with the hoisting main beam, one end of the second transverse oil cylinder is connected with the hoisting main beam, the other end of the second transverse oil cylinder is connected with the second hoisting trolley, the second hoisting oil cylinder and the second hoisting chain are arranged on the part of the second hoisting trolley close to the first hoisting trolley in the height direction of the frame, one end of the second lifting oil cylinder is connected with the second lifting trolley, the other end of the second lifting oil cylinder is connected with the second lifting chain, and the second lifting chain is suitable for being connected with the second prefabricated part.

Optionally, the second hoisting assembly further comprises a third hoisting cylinder and a third hoisting chain, the third hoisting cylinder and the third hoisting chain are arranged on a part of the second hoisting trolley far away from the first hoisting trolley, one end of the third hoisting chain is connected with the third hoisting cylinder, the other end of the third hoisting chain is suitable for being connected with the second prefabricated component, and the third hoisting cylinder is suitable for stretching along the width direction of the frame and driving the third hoisting chain to lift.

Optionally, the splicing device comprises a hoisting frame and a splicing assembly, wherein the hoisting frame is slidably connected with the machine arm and is suitable for hoisting the splicing assembly in the length direction of the rack, and the splicing assembly is suitable for splicing the prefabricated part to be spliced with the spliced prefabricated part.

Optionally, the concatenation subassembly includes L shape concatenation arm and fourth extensible member, the fourth extensible member sets up on the minor face of L shape concatenation arm to be suitable for the edge the long edge direction of L shape concatenation arm is flexible, L shape concatenation arm is kept away from the one end of fourth extensible member be suitable for with spliced prefabricated component fixed connection, the fourth extensible member be suitable for with treat the concatenation prefabricated component butt.

Compared with the prior art, the invention has the following beneficial effects:

the hoisting device and the splicing device are respectively connected with the machine arm in a sliding manner, the hoisting device is suitable for hoisting prefabricated parts, the splicing device is suitable for splicing the prefabricated parts, the hoisting and splicing of the prefabricated parts can be realized, the front support leg, the middle support leg and the rear support leg are respectively connected with the machine arm and support the machine arm, the first telescopic part is suitable for driving the front support leg to stretch and retract, the driving device is arranged on the middle support leg and/or the rear support leg and is suitable for driving the rack to move, when the splicing machine is spliced at the tail position of a foundation pit, the front support leg can be lifted, the driving device drives the rack to move so that the front support leg spans the height difference between the bottom of the foundation pit and the platform plane, meanwhile, the second telescopic part is suitable for driving the middle support leg and/or the rear support leg to stretch and retract, the posture of the machine arm is adjusted in real time, the balance of the whole machine is ensured, the prefabricated parts can be more accurately positioned, and therefore, the splicing machine can be spliced at the tail rings of the prefabricated parts without spending of a large amount of time and manual disassembly or movement, the assembly efficiency of the rail transit station bottom layer structure can be improved.

The invention also aims to provide an assembling process to improve the assembling efficiency of the bottom layer structure of the rail transit station.

In order to solve the above problems, the technical solution of the present invention is realized as follows:

the assembly process of the bottom layer structure of the rail transit station adopts a transport vehicle, a jack and the assembly machine, and comprises the following steps:

step 1, collecting front support legs of the erector, conveying a first prefabricated part of the prefabricated part to a first hoisting position by the carrier vehicle, and dropping the front support legs and supporting the front support legs at the bottom of a foundation pit;

step 2, moving a lifting device of the assembling machine to the first lifting position, lifting the first prefabricated part, moving the lifting device to the first assembling position, adjusting, and then dropping, wherein the transport vehicle exits;

step 3, the transport vehicle transports a second prefabricated part of the prefabricated part to a second hoisting position, the hoisting device moves to the second hoisting position and hoists the second prefabricated part, the hoisting device is moved to a second assembling position and falls down after adjustment, and the transport vehicle exits;

step 4, supporting the jack on the side wall of the foundation pit, and splicing the second prefabricated part and the first prefabricated part into the prefabricated part through the jack;

step 5, moving the lifting device to the front supporting leg, moving a splicing device of the splicing machine to a position corresponding to the prefabricated part to be spliced, and pressing the prefabricated part to be spliced and the prefabricated part which is spliced completely by the splicing device;

step 6, retracting the front supporting leg, and pushing the assembling machine to move to the next station by a driving device of the assembling machine;

and 7, repeating the steps 1 to 6 until the assembly of the bottom layer structure of the whole rail transit station is completed.

The advantages of the assembly process in the prior art are the same as those of the assembly machine, and are not described in detail herein.

Drawings

FIG. 1 is a schematic structural diagram of an assembling machine and prefabricated components of a bottom layer structure of a rail transit station in the embodiment of the invention;

FIG. 2 is a schematic structural diagram of an assembling machine and prefabricated components of a bottom layer structure of a railway station in another view according to an embodiment of the present invention;

FIG. 3 is an enlarged view of the embodiment of the present invention at A in FIG. 2;

FIG. 4 is an enlarged view of the embodiment of the present invention at B in FIG. 2;

FIG. 5 is a schematic structural diagram of another perspective of the erector of the rail transit station bottom structure in the embodiment of the present invention;

FIG. 6 is a schematic structural diagram of the assembly machine of the infrastructure of the railway station in another state according to the embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a splice assembly in an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a transport vehicle in an embodiment of the invention.

Description of reference numerals:

1-frame, 11-machine arm, 12-front supporting leg, 121-first telescopic piece, 13-middle supporting leg, 14-rear supporting leg, 141-second telescopic piece, 2-driving device, 21-third telescopic piece, 22-connecting seat, 3-lifting device, 31-first lifting component, 311-first lifting trolley, 312-first transverse oil cylinder, 313-first lifting oil cylinder, 314-first lifting chain, 32-second lifting component, 321-second lifting trolley, 322-second transverse oil cylinder, 323-second lifting oil cylinder, 324-second lifting chain, 325-third lifting oil cylinder, 326-third lifting chain, 33-lifting main beam, 4-splicing device, 41-hoisting frame, 42-splicing component, 421-L-shaped splicing arm, 422-fourth telescopic piece, 100-prefabricated part, 101-first prefabricated part, 102-second prefabricated part and 200-transport vehicle.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it is to be understood that the forward direction of "X" in the drawings represents the left direction, and correspondingly, the reverse direction of "X" represents the right direction; the forward direction of "Y" represents forward, and correspondingly, the reverse direction of "Y" represents rearward; the forward direction of "Z" represents the upward direction, and correspondingly, the reverse direction of "Z" represents the downward direction, and the directions or positional relationships indicated by the terms "X", "Y", "Z", etc. are based on the directions or positional relationships shown in the drawings of the specification, and are only for convenience of describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular direction, be constructed and operated in a particular direction, and thus should not be construed as limiting the present invention.

The terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or an implicit indication of the number of technical features indicated. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

To solve the above problems, as shown in fig. 1, 5 and 6, an embodiment of the present invention provides an erector for a substructure of a rail transit station, including: the telescopic device comprises a frame 1, wherein the frame 1 comprises a machine arm 11, a front supporting leg 12, a middle supporting leg 13, a rear supporting leg 14, a first telescopic piece 121 and at least one second telescopic piece 141, the front supporting leg 12, the middle supporting leg 13 and the rear supporting leg 14 are respectively connected with the machine arm 11 and support the machine arm 11, the first telescopic piece 121 is suitable for driving the front supporting leg 12 to stretch and contract, and the second telescopic piece 141 is suitable for driving the middle supporting leg 13 and/or the rear supporting leg 14 to stretch and contract; the driving device 2 is arranged on the middle supporting leg 13 and/or the rear supporting leg 14 and is suitable for driving the machine frame 1 to move; the lifting device 3 and the splicing device 4 are respectively connected with the machine arm 11 in a sliding mode, the lifting device 3 is suitable for lifting the prefabricated part 100, and the splicing device 4 is suitable for splicing the prefabricated part 100.

As shown in fig. 1, 5, and 6, in this embodiment, the horn 11 is a frame structure formed by connecting a front cross beam, a rear cross beam, a left longitudinal beam, and a right longitudinal beam end to end, two front legs 12, two middle legs 13, and two rear legs 14 are provided, which are respectively a left front leg, a right front leg, a left middle leg, a right middle leg, a left rear leg, and a right rear leg, each of the legs is respectively provided at the front portion, the middle portion, and the rear portion of the left longitudinal beam and the right longitudinal beam, the legs at each position on the left longitudinal beam and the right longitudinal beam correspond to each other, and can be connected with the left longitudinal beam and the right longitudinal beam by welding, riveting, or bolting, without limitation.

Each landing leg all can adopt the telescopic structure, for example, adopt by interior cylinder, the extending structure that outer cylinder and extensible member are constituteed, the inside cavity of outer cylinder, interior cylinder suit is in outer cylinder, the one end and the outer cylinder of extensible member are connected, the other end and the interior cylinder of extensible member are connected, it goes up and down to drive the landing leg through the flexible of extensible member, wherein, the cross-sectional shape of interior cylinder and outer cylinder can adopt circular, square or its shape of combination, the extensible member can adopt the cylinder, hydro-cylinder or electricity jar isotructure.

The driving device 2 can adopt a walking structure that a motor drives a tire or a track to roll, a cylinder or an oil cylinder drives a slide block to slide along a slide rail or other moving modes, and according to the specific structure condition and the actual driving requirement of the middle supporting leg 13 or the rear supporting leg 14, the driving device 2 can be respectively provided with one set on the left middle supporting leg and the right middle supporting leg, also can be respectively provided with one set on the left rear supporting leg and the right rear supporting leg, and also can be respectively provided with one set on the middle supporting leg, the right middle supporting leg, the left rear supporting leg and the right rear supporting leg; the lifting device 3 and the splicing device 4 can be connected with the machine arm in a sliding way through a sliding rail sliding groove structure or a hook wheel structure.

Thus, the hoisting device 3 is suitable for hoisting the prefabricated part 100, the splicing device 4 is suitable for splicing the prefabricated part 100, the hoisting device 3 is suitable for splicing the prefabricated part 100, the splicing device 4 is suitable for splicing the prefabricated part 100, the hoisting and splicing of the prefabricated part 100 can be realized, the front support leg 12, the middle support leg 13 and the rear support leg 14 are respectively connected with the machine arm 11 and support the machine arm 11, the first telescopic piece 121 is suitable for driving the front support leg 12 to stretch and contract, the driving device 2 is arranged on the middle support leg 13 and/or the rear support leg 14 and is suitable for driving the rack 1 to move, when the erector is at the tail position of the foundation pit, the front support leg 12 can be lifted, the driving device 2 drives the rack 1 to move, so that the front support leg 12 crosses the height difference between the bottom of the foundation pit and the platform plane, meanwhile, the second telescopic piece 141 is suitable for driving the middle support leg 13 and/or the rear support leg 14 to stretch and adjust the posture of the machine arm 11 in real time, the balance of the whole machine is guaranteed, the prefabricated part 100 can be accurately placed, therefore, the prefabricated part 100 with a plurality of rings at the tail can be assembled without spending a large amount of time and manually disassembling or moving the assembling machine, and the assembling efficiency of the bottom layer structure of the rail transit station can be improved.

Alternatively, the first telescopic member 121 is disposed on the front leg 12, the second telescopic member 141 is disposed on the rear leg 14 and adapted to drive the rear leg 14 to be telescopic, and the driving device 2 is disposed on the middle leg 13.

As shown in fig. 1, 5 and 6, in this embodiment, the front leg 12 and the rear leg 14 are of a telescopic structure, the middle leg 13 is of a structure that is not telescopic and has a fixed height, and the first telescopic part 121 and the second telescopic part 141 are both telescopic cylinders, which are commonly used in the engineering field, are low in price, economical, strong in universality and convenient to maintain.

Specifically, the front supporting leg 12 comprises a front supporting leg outer column, a front supporting leg inner column, a front telescopic oil cylinder, a front supporting leg supporting part and the like, the lower end of the front supporting leg outer column is fixedly connected with the front portion of the machine arm 11, the upper end of the front supporting leg outer column extends out of the machine arm 11 for a distance, the telescopic range of the front supporting leg 12 can be increased, the front supporting leg 12 can conveniently span the height difference between the bottom of the foundation pit and the platform plane, the upper end of the front supporting leg inner column is sleeved in the front supporting leg outer column, the fixed end of the front telescopic oil cylinder is fixedly connected with the front supporting leg outer column, the movable end of the front telescopic oil cylinder is movably connected with the lower end of the front supporting leg inner column, and the front supporting leg supporting part is connected with the lower end of the front supporting leg inner column.

The middle support leg 13 includes a middle support leg upright, a middle support leg sliding part and other structures, the upper end of the middle support leg upright is fixedly connected with the middle part of the horn 11, the lower end of the middle support leg upright is connected with the middle support leg sliding part, in the construction process, a sliding rail or a sliding groove is usually arranged on the assembled prefabricated part 100, for example, a rail made of i-steel or a sliding groove made of channel steel, and the middle support leg sliding part can be supported on the sliding rail or the sliding groove and is in sliding fit with the sliding rail or the sliding groove, so that the whole machine can move conveniently.

The structure of back landing leg 14 is similar with the structure of landing leg 12 before above-mentioned, and the difference is that the horn 11 is not stretched out above the upper end of the back landing leg outer column of back landing leg 14, and back telescopic cylinder is less than preceding telescopic cylinder flexible scope, sets up back landing leg 14 like this and is in order to reduce the whole height of erector for the erector can adapt to littleer construction space, improves the commonality. In addition, the rear supporting leg 14 can also finely adjust the height of the rear part of the machine arm 11 when the hoisting device 3 moves to the front part of the machine arm 11 for hoisting operation, and the balance of the machine arm 11 is controlled by matching with the front supporting leg 12, so that the posture of the whole machine is controlled, and the component placement is more accurate. In addition, the lower end of the rear leg inner column of the rear leg 14 is also provided with a rear leg sliding part, and the rear leg sliding part can be supported on the sliding rail or the sliding groove and is in sliding fit with the sliding rail or the sliding groove, so that the whole machine can move conveniently.

The third telescopic member 21 also adopts a telescopic cylinder, and the advantages of the telescopic cylinder are consistent with the above situation, and are not described again here. For convenience of description, the driving oil cylinder can be called as a driving oil cylinder, the driving oil cylinder is arranged along the length direction of the rack 1, an ear plate is arranged on the sliding part of the middle support leg, one end of the driving oil cylinder is hinged with the ear plate, the other end of the driving oil cylinder is hinged or fixedly connected with the connecting seat 22, a fixing position suitable for fixing the connecting seat 22 is arranged on the sliding rail or the sliding chute at intervals, for example, a groove structure of a fixing baffle plate or a locking hole structure of a locking bolt can be installed, when the whole machine needs to be moved to the next station, the connecting seat 22 can be fixed on a certain fixing position through the locking bolt or the fixing baffle plate, and the middle support leg 13 is driven by the driving oil cylinder to move along the sliding rail or the sliding chute.

As shown in fig. 1, the longitudinal direction of the gantry 1 is the Y-axis direction.

Optionally, the hoisting device 3 comprises a first hoisting assembly 31, a second hoisting assembly 32 and a hoisting main beam 33, the hoisting main beam 33 is slidably connected with the jib 11 in the length direction of the frame 1, the first hoisting assembly 31 and the second hoisting assembly 32 are slidably connected with the hoisting main beam 33 respectively in the width direction of the frame 1, the prefabricated part 100 comprises a first prefabricated part 101 and a second prefabricated part 102, the first hoisting assembly 31 is suitable for hoisting the first prefabricated part 101, and the second hoisting assembly 32 is suitable for hoisting the second prefabricated part 102.

As shown in fig. 2 and 5, in the present embodiment, the crane main beam 33 is disposed along the width direction of the frame 1, the upper end surfaces of the left longitudinal beam and the right longitudinal beam of the horn 11 are provided with slideways along the length direction of the frame 1, for example, a rail made of i-steel or a chute made of channel steel, and the lower end surface of the crane main beam 33 is provided with a roller adapted to roll in the slideways, wherein the power device for driving the crane main beam 33 to slide along the left longitudinal beam and the right longitudinal beam of the horn 11 may be a structure composed of a motor and a chain, or a structure similar to the above-mentioned driving device 2 or another type of power device, which is not limited herein.

The left side part of the hoisting main beam 33 extends out of the left longitudinal beam of the machine arm 11, the right side part of the hoisting main beam 33 extends out of the right longitudinal beam of the machine arm 11, the first hoisting assemblies 31 are arranged on the hoisting main beam 33 and are positioned between the left longitudinal beam and the right longitudinal beam of the machine arm 11, two groups of second hoisting assemblies 32 are arranged, the two groups of second hoisting assemblies 32 are respectively arranged on the left side part and the right side part of the hoisting main beam 33, the first hoisting assemblies 31 and the two groups of second hoisting assemblies 32 are both in sliding connection with the hoisting main beam 33 and can slide along the width direction of the rack 1, so that the position of the prefabricated part 100 can be finely adjusted during hoisting, and the falling position of the prefabricated part is more accurate.

In order to facilitate transportation and other operations in a limited construction space, the prefabricated part 100 comprises a first prefabricated part 101 and two second prefabricated parts 102, the first prefabricated part 101 is a middle part, the two second prefabricated parts 102 are a left part and a right part respectively, the first prefabricated part 101 and the second prefabricated parts 102 are respectively transported to a construction site by a transport vehicle 200 and then are hoisted in place for on-site splicing, wherein the first hoisting assembly 31 is used for hoisting the first prefabricated part 101, and the two groups of second hoisting assemblies 32 are respectively used for hoisting the second prefabricated parts 102 on the left side and the right side.

As shown in fig. 1, the width direction of the gantry 1 is the X-axis direction.

Optionally, the first hoisting assembly 31 includes a first hoisting trolley 311, a first traverse cylinder 312, a first hoisting cylinder 313 and a first hoisting chain 314, the first hoisting trolley 311 is disposed in the middle of the hoisting main beam 33 and is slidably connected to the hoisting main beam 33 in the width direction of the frame 1, one end of the first traverse cylinder 312 is connected to the hoisting main beam 33, the other end of the first traverse cylinder 312 is connected to the first hoisting trolley 311, one end of the first hoisting cylinder 313 is connected to the first hoisting trolley 311 in the height direction of the frame 1, the other end of the first hoisting cylinder 313 is connected to the first hoisting chain 314, and the first hoisting chain 314 is adapted to be connected to the first prefabricated component 101.

As shown in fig. 2 and 3, in this embodiment, the first lifting trolley 311 is disposed on the upper end surface of the lifting main beam 33, a slide rail structure, such as a rail made of i-steel or a chute made of channel steel, or a smooth pad block, may be disposed between the first lifting trolley 311 and the upper end surface of the lifting main beam 33, the left end and the right end of the first lifting trolley 311 are respectively provided with a first traverse cylinder 312, the two first traverse cylinders 312 are respectively fixedly connected with the lifting main beam 33, and the first lifting trolley 311 may be pushed to move along the width direction of the rack 1 by the mutual cooperation of the two first traverse cylinders 312, so that the first prefabricated component 101 may be more accurately positioned when lifted.

In one embodiment, the main crane beam 33 is a solid structure, the front portion of the first lifting trolley 311 exceeds the front portion of the main crane beam 33, and/or the rear portion of the first lifting trolley 311 exceeds the rear portion of the main crane beam 33, and the first lifting cylinder 313 and the first lifting chain 314 are arranged on the front portion of the first lifting trolley 311 and/or the rear portion of the first lifting trolley 311, so that the main crane beam 33 is stronger and has stronger lifting capability.

In another embodiment, the lifting girder 33 is of a frame structure with an installation space in the middle, the first lifting trolley 311 spans on the lifting girder 33, the first lifting cylinder 313 and the first lifting chain 314 are arranged at the bottom of the first lifting trolley 311 and extend out of the installation space in the middle of the lifting girder 33, so that the connection with the first prefabricated part 101 is realized, and the lifting device 3 of this embodiment has a more exquisite structure, lighter self weight, lower cost, space saving and stronger universality.

Optionally, the second hoisting assembly 32 includes a second hoisting trolley 321, a second traverse cylinder 322, a second hoisting cylinder 323, and a second hoisting chain 324, in the width direction of the rack 1, the second hoisting trolley 321 is disposed at the side of the main hoisting beam 33 and slidably connected to the main hoisting beam 33, one end of the second traverse cylinder 322 is connected to the main hoisting beam 33, the other end of the second traverse cylinder 322 is connected to the second hoisting trolley 321, the second hoisting cylinder 323 and the second hoisting chain 324 are disposed on a portion of the second hoisting trolley 321 close to the first hoisting trolley 311, in the height direction of the rack 1, one end of the second hoisting cylinder 323 is connected to the second hoisting trolley 321, the other end of the second hoisting cylinder 323 is connected to the second hoisting chain 324, and the second hoisting chain 324 is adapted to be connected to the second prefabricated component 102.

As shown in fig. 2 and 4, in the present embodiment, the second hoisting assembly 32 has a structure similar to that of the first hoisting assembly 31, except that, because the second hoisting assembly 32 is disposed at the side of the main girder 33, only one second traverse cylinder 322 of the second hoisting assembly 32 is provided, the second traverse cylinder 322 is disposed at a side of the second hoisting trolley 321 close to the first hoisting trolley 311 and is fixedly connected to the main girder 33, and the second traverse cylinder 322 can extend and contract in the width direction of the frame 1, so as to drive the second hoisting trolley 321 to move, so that the second hoisting assembly 32 can be more accurately positioned when hoisting the second prefabricated component 102.

As shown in fig. 1, the height direction of the gantry 1 is the Z-axis direction.

Optionally, the second lifting assembly 32 further includes a third lifting cylinder 325 and a third lifting chain 326, the third lifting cylinder 325 and the third lifting chain 326 are disposed on a portion of the second lifting trolley 321 away from the first lifting trolley 311, one end of the third lifting chain 326 is connected to the third lifting cylinder 325, the other end of the third lifting chain 326 is adapted to be connected to the second prefabricated component 102, and the third lifting cylinder 325 is adapted to extend and contract along the width direction of the frame 1 and drive the third lifting chain 326 to lift and lower.

As shown in fig. 2 and 4, in the present embodiment, since the cross-sectional shape of the second preform member 102 is substantially L-shaped, the height of the side thereof remote from the first prefabricated part 101 is greater than the height of the side thereof close to the first prefabricated part 101, therefore, the lifting height of the second lifting assembly 32 close to the side wall of the foundation pit is small, so that in order to avoid the damage of the second prefabricated part 102 due to the insufficient lifting height, a third lifting oil cylinder 325 and a third lifting chain 326 are further arranged on the part, far away from the first lifting trolley 311, of the second lifting trolley 321, the third lifting oil cylinder 325 is arranged on the upper end face of the second lifting trolley 321 along the width direction of the frame 1, a pulley is arranged at one end, close to the side wall of the foundation pit, of the second lifting trolley 321, the third lifting chain 326 is wound on the pulley, one end of the third lifting chain 326 is connected with the third lifting oil cylinder 325, and the other end of the third lifting chain 326 can be connected with the second prefabricated component 102.

Optionally, the splicing device 4 includes a hoisting frame 41 and a splicing assembly 42, the hoisting frame 41 is slidably connected with the machine arm 11 in the length direction of the machine frame 1 and is adapted to hoist the splicing assembly 42, and the splicing assembly 42 is adapted to splice the prefabricated components 100 to be spliced with the spliced prefabricated components 100.

As shown in fig. 2 and 5, in the present embodiment, since the first prefabricated part 101 and the second prefabricated part 102 have different sectional shapes, the conditions of occupying the bottom space of the frame 1 are different, therefore, in order to reasonably utilize the bottom space of the frame 1, the hoisting frame 41 comprises a first hoisting frame and a second hoisting frame, the first hoisting frame is used for hoisting and splicing the splicing component 42 of the first prefabricated part 101, the second hoisting frame is used for hoisting and splicing the splicing component 42 of the second prefabricated part 102, wherein the first hoisting frame is arranged below the machine arm 11 and is positioned between the left side supporting leg and the right side supporting leg of the machine frame 1 and can be connected with the left longitudinal beam and the right longitudinal beam of the machine arm 11 in a sliding way through a hook wheel structure, meanwhile, the electric hoist capable of lifting along the height direction of the rack 1 is further arranged on the first hoisting frame, so that the splicing assembly 42 can be conveniently stored on the first hoisting frame or taken down from the first hoisting frame for splicing operation.

The second hoists and erects and put up and be equipped with two, two second hoists and erects and put up the below that also sets up at horn 11, a second hoists and erects the left side landing leg left side that is located frame 1, another second hoists and erects the right side landing leg right side that is located frame 1, the lower part of left longitudinal beam and right longitudinal beam all is equipped with outside convex connecting portion, be equipped with the spout along 1 length direction of frame on the connecting portion, two second hoists are put up and are equipped with respectively and be suitable for with spout sliding connection's slide rail structure, the position department that corresponds with two second gallows still is equipped with little loop wheel machine on the hoist girder 33, be used for leave concatenation subassembly 42 in the second hoists and put up or take off from the second gallows and carry out the concatenation operation.

Optionally, the splicing assembly 42 includes an L-shaped splicing arm 421 and a fourth telescopic member 422, the fourth telescopic member 422 is disposed on a short side of the L-shaped splicing arm 421 and is adapted to be telescopic along a long side direction of the L-shaped splicing arm 421, one end of the L-shaped splicing arm 421, which is far away from the fourth telescopic member 422, is adapted to be fixedly connected with the spliced prefabricated component 100, and the fourth telescopic member 422 is adapted to be abutted to the prefabricated component 100 to be spliced.

As shown in fig. 5, 6 and 7, in this embodiment, the fourth telescopic member 422 also adopts a telescopic cylinder, and the advantage of the telescopic cylinder is the same as that described above, which is not described herein again. For convenience of description, the splicing oil cylinder may be referred to as a splicing oil cylinder, the splicing oil cylinder is fixed on the short side of the L-shaped splicing arm 421 and is arranged in parallel with the long side of the L-shaped splicing arm 421, the splicing assembly 42 is provided with a plurality of groups, after the first prefabricated part 101 and the second prefabricated part 102 are lifted to the splicing position, the prefabricated parts 100 are spliced by pushing from the left side and the right side to the middle through the thin-wall jacks abutted to the side walls of the foundation pit, one end of the L-shaped splicing arm 421 far away from the splicing oil cylinder is fixed on the upper end face of the prefabricated part 100 which is spliced at the previous station through bolts, the movable end of the splicing oil cylinder is abutted to the front end face of the prefabricated part 100 to be spliced, the plurality of groups of splicing assemblies 42 are sequentially and uniformly arranged on each pressing point along the width direction of the machine frame 1, and simultaneously drives the splicing oil cylinders of the splicing assemblies 42 to stretch, so that the splicing of the prefabricated parts 100 is completed, and the splicing efficiency and the splicing quality can be improved.

Another embodiment of the present invention provides an assembly process for a bottom layer structure of a rail transit station, which uses a transport vehicle 200, a jack and the assembly machine, and comprises the following steps:

step 1, collecting front supporting legs 12 of the erector, conveying a first prefabricated part 101 of the prefabricated part 100 to a first hoisting position by a transport vehicle 200, and dropping the front supporting legs 12 and supporting the front supporting legs at the bottom of a foundation pit;

specifically, as shown in fig. 1, 6 and 8, the transport vehicle 200 includes a first transport vehicle, the first prefabricated part 101 is a middle part of the prefabricated part 100, the structure of the first prefabricated part is regular, in an actual construction process, a track can be laid between two side legs of the erector at the bottom of a foundation pit according to site construction conditions, the track can be detached and transferred according to the project progress, and the first transport vehicle specially used for transporting the first prefabricated part 101 is arranged on the track, so that the construction efficiency is improved. When the first transport vehicle transports the first prefabricated part 101 from the outside to the vicinity of the erector, because the width of the first prefabricated part 101 is greater than the distance between the left front leg and the right front leg, the front legs 12 are retracted in order to facilitate the passage of the first transport vehicle, and after the first prefabricated part 101 is transported to the first hoisting position below the frame 1 by the first transport vehicle, the front legs 12 are dropped and supported at the bottom of the foundation pit so as to bear the load when the first prefabricated part 101 is hoisted together with the middle legs 13 and the rear legs 14.

The first lifting position is an area located in the middle between the front support leg 12 and the middle support leg 13 below the horn 11.

Step 2, moving the lifting device 3 of the assembling machine to a first lifting position, lifting the first prefabricated part 101, moving the lifting device 3 to the first assembling position, adjusting, then, allowing the prefabricated part to fall down, and withdrawing the transport vehicle 200;

specifically, before the first prefabricated part 101 is lifted, in order to ensure the balance and safety of the erector, the lifting device 3 is generally moved to the rear part of the frame 1, and the load of the lifting device 3 is borne by the middle support leg 13 and the rear support leg 14, when the first prefabricated part 101 is conveyed in place, the postures of the front support leg 12, the middle support leg 13 and the rear support leg 14 are adjusted, then the lifting device 3 is moved to the first lifting position, the first lifting assembly 31 of the lifting device 3 lifts the first prefabricated part 101, moves to the first assembly position, falls down, and then the unloaded first transport vehicle is withdrawn.

The first splicing position is a position where the distance between the bottom of the foundation pit and the spliced first prefabricated part of the previous ring is 10 mm.

Step 3, the transport vehicle 200 transports the second prefabricated part 102 of the prefabricated part 100 to a second hoisting position, the hoisting device 3 moves to the second hoisting position and hoists the second prefabricated part 102, the hoisting device 3 is moved to a second splicing position and falls down after adjustment, and the transport vehicle 200 is withdrawn;

specifically, the transport vechicle 200 still includes the second transport vechicle, and second prefabricated component 102 is the both sides part of prefabricated component 100, and its width is less than the interval between erector one side landing leg to the foundation ditch lateral wall, and in actual work progress, can lay the track according to site operation condition between the both sides landing leg that the foundation ditch bottom is located the erector and the foundation ditch lateral wall, and this track can be dismantled and shift according to the engineering progress to can set up the second transport vechicle that is exclusively used in the transportation second prefabricated component 102 on this track, thereby improve the efficiency of construction.

When the second prefabricated part 102 is conveyed to the proper position, the lifting device 3 is moved to the second lifting position, the second lifting assembly 32 of the lifting device 3 lifts the second prefabricated part 102, moves to the second assembly position, falls down after being adjusted, and then the unloaded second transport vehicle is withdrawn.

The second hoisting position is an area between the front supporting leg 12 and the middle supporting leg 13 below the machine arm 11 and positioned on the left side and the right side; the second splicing position is a position at which the distance between the bottom of the foundation pit and the spliced second prefabricated part of the previous ring is 10 mm.

Step 4, supporting a jack on the side wall of the foundation pit, and splicing the second prefabricated part 102 and the first prefabricated part 101 into a prefabricated part 100 through the jack;

specifically, after the device 3 to be lifted lifts a first prefabricated part 101 and two second prefabricated parts 102 in place, gaps with certain intervals are left between the outward side walls of the two second prefabricated parts 102 and the corresponding side walls of the foundation pit, the inward side walls of the two second prefabricated parts 102 are provided with butt joint structures matched with the outward side walls of the first prefabricated part 101, a thin-wall jack is arranged at the gap, one end of the thin-wall jack is abutted to the side walls of the foundation pit, the other end of the thin-wall jack is abutted to the outward side walls of the second prefabricated parts 102, and the second prefabricated parts 102 and the first prefabricated parts 101 are spliced to form the whole ring of prefabricated parts 100 through the pushing of the thin-wall jack.

Step 5, moving the lifting device 3 to the front supporting leg 12, moving the splicing device 4 of the splicing machine to a position corresponding to the prefabricated part 100 to be spliced in place, and pressing the prefabricated part 100 to be spliced and the prefabricated part 100 which is spliced by the splicing device 4;

specifically, during the hoisting operation, in order to prevent interference to the hoisting device 3, the splicing device 4 is usually moved to the rear part of the splicing machine, after the first prefabricated component 101 and the second prefabricated component 102 are spliced, the hoisting device 3 is moved to a position close to the front support leg 12 to make up an operation space for the splicing device 4, then the hoisting frame 41 of the splicing device 4 is moved to a position corresponding to the prefabricated component 100 to be spliced, the splicing assemblies 42 are put down and uniformly arranged on each compression point along the width direction of the rack 1, and meanwhile, the splicing oil cylinders of the splicing assemblies 42 are driven to stretch and retract, so that splicing of the prefabricated components 100 on the station is completed.

Step 6, retracting the front supporting leg 12, and pushing the assembling machine to move to the next station by the driving device 2 of the assembling machine;

specifically, the front support leg 12 is retracted to be separated from the bottom of the foundation pit, the last section of steel rail arranged on the spliced prefabricated part 100 behind the splicing machine is removed, the steel rail is laid on the foremost ring of prefabricated parts 100 which are just spliced, then the connecting seat 22 of the driving device 2 is fixed at the corresponding position on the steel rail, the splicing machine is integrally longitudinally moved forward to the next station by the aid of the propulsion of the driving oil cylinder, and the prefabricated parts 100 of the next ring are ready to be spliced.

And 7, repeating the steps 1 to 6 until the assembly of the bottom layer structure of the whole rail transit station is completed.

When the erector moves to the position that is close to the foundation ditch tail, in order not to occupy the construction space of several rings of prefabricated component 100 at the tail, can lift preceding landing leg 12 of erector to the height that is a little higher than the platform plane to through the whole forward movement of drive arrangement 2 drive erector, make preceding landing leg 12 can stride across the difference in height between foundation ditch bottom and the platform plane, then fall preceding landing leg 12 and make it support on the platform plane, thereby vacate construction space for several rings of prefabricated component 100 at the tail, improve the efficiency of construction.

In addition, the wheel-type or crawler-type transport vehicle 200 may be used for the first transport vehicle and the second transport vehicle according to specific construction conditions, and the first prefabricated part 101 and the second prefabricated part 102 may share the same transport vehicle 200 or may use different transport vehicles 200.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.

Claims (10)

1. The utility model provides a rail transit station substructure's erector which characterized in that includes:

the frame (1), the frame (1) comprises a machine arm (11), a front supporting leg (12), a middle supporting leg (13), a rear supporting leg (14), a first telescopic piece (121) and at least one second telescopic piece (141), the front supporting leg (12), the middle supporting leg (13) and the rear supporting leg (14) are respectively connected with the machine arm (11) and support the machine arm (11), the first telescopic piece (121) is suitable for driving the front supporting leg (12) to stretch and retract, and the second telescopic piece (141) is suitable for driving the middle supporting leg (13) and/or the rear supporting leg (14) to stretch and retract;

a driving device (2), wherein the driving device (2) is arranged on the middle supporting leg (13) and/or the rear supporting leg (14) and is suitable for driving the machine frame (1) to move;

hoisting accessory (3) and splicing apparatus (4), hoisting accessory (3) with splicing apparatus (4) respectively with horn (11) sliding connection, hoisting accessory (3) are suitable for lifting by crane prefabricated component (100), splicing apparatus (4) are suitable for the concatenation prefabricated component (100).

2. Machine according to claim 1, wherein said first telescopic member (121) is provided on said front leg (12), said second telescopic member (141) is provided on said rear leg (14) and is adapted to drive said rear leg (14) to telescope, said drive means (2) being provided on said middle leg (13).

3. The erector of claim 2, wherein the driving device (2) comprises a third telescopic member (21) and a connecting seat (22), one end of the third telescopic member (21) is connected with the middle leg (13) and the other end of the third telescopic member (21) is connected with the connecting seat (22) in the length direction of the frame (1), and the connecting seat (22) is suitable for being fixedly connected with the spliced prefabricated parts (100).

4. The erector of any one of claims 1 to 3, wherein the lifting means (3) comprises a first lifting assembly (31), a second lifting assembly (32) and a main crane beam (33), the main crane beam (33) is slidably connected to the horn (11) in a length direction of the frame (1), the first lifting assembly (31) and the second lifting assembly (32) are slidably connected to the main crane beam (33) in a width direction of the frame (1), respectively, the prefabricated member (100) comprises a first prefabricated member (101) and a second prefabricated member (102), the first lifting assembly (31) is adapted to lift the first prefabricated member (101), and the second lifting assembly (32) is adapted to lift the second prefabricated member (102).

5. The erector of claim 4, wherein the first lifting assembly (31) comprises a first lifting trolley (311), a first traverse cylinder (312), a first lifting cylinder (313) and a first lifting chain (314), the first lifting trolley (311) is arranged in the middle of the main lifting beam (33) and is slidably connected with the main lifting beam (33) in the width direction of the frame (1), one end of the first traverse cylinder (312) is connected with the main lifting beam (33), the other end of the first traverse cylinder (312) is connected with the first lifting trolley (311), one end of the first lifting cylinder (313) is connected with the first lifting trolley (311) in the height direction of the frame (1), and the other end of the first lifting cylinder (313) is connected with the first lifting chain (314), the first hoisting chain (314) is adapted to be connected with the first prefabricated element (101).

6. The erector of claim 5, wherein the second lifting assembly (32) comprises a second lifting trolley (321), a second traverse cylinder (322), a second lifting cylinder (323) and a second lifting chain (324), the second lifting trolley (321) is arranged at the side of the main lifting beam (33) and is slidably connected with the main lifting beam (33) in the width direction of the frame (1), one end of the second traverse cylinder (322) is connected with the main lifting beam (33), the other end of the second traverse cylinder (322) is connected with the second lifting trolley (321), the second lifting cylinder (323) and the second lifting chain (324) are arranged on the part of the second lifting trolley (321) close to the first lifting trolley (311) in the height direction of the frame (1), one end of the second lifting oil cylinder (323) is connected with the second lifting trolley (321), the other end of the second lifting oil cylinder (323) is connected with the second lifting chain (324), and the second lifting chain (324) is suitable for being connected with the second prefabricated part (102).

7. The erector of claim 6, wherein the second lifting assembly (32) further comprises a third lifting cylinder (325) and a third lifting chain (326), the third lifting cylinder (325) and the third lifting chain (326) are arranged on a portion of the second lifting trolley (321) away from the first lifting trolley (311), one end of the third lifting chain (326) is connected with the third lifting cylinder (325), the other end of the third lifting chain (326) is adapted to be connected with the second prefabricated component (102), and the third lifting cylinder (325) is adapted to extend along the width direction of the machine frame (1) and drive the third lifting chain (326) to move up and down.

8. The erector of any one of claims 1 to 3, wherein said splicing device (4) comprises a hoisting frame (41) and a splicing assembly (42), said hoisting frame (41) being slidably connected to said boom (11) in the length direction of said frame (1) and being adapted to hoist said splicing assembly (42), said splicing assembly (42) being adapted to splice said prefabricated elements (100) to be spliced with said spliced prefabricated elements (100).

9. The erector of claim 8, wherein the splice assembly (42) comprises an L-shaped splice arm (421) and a fourth telescopic member (422), wherein the fourth telescopic member (422) is arranged on a short side of the L-shaped splice arm (421) and is adapted to be telescopic along a long side direction of the L-shaped splice arm (421), wherein an end of the L-shaped splice arm (421) far away from the fourth telescopic member (422) is adapted to be fixedly connected with the spliced prefabricated parts (100), and the fourth telescopic member (422) is adapted to abut with the prefabricated parts (100) to be spliced.

10. Assembly process of a substructure of a railway station, using transport vehicles (200), jacks and an assembly machine according to any of claims 1 to 9, characterized in that it comprises the following steps:

step 1, retracting a front supporting leg (12) of the erector, conveying a first prefabricated part (101) of a prefabricated part (100) to a first hoisting position by a transport vehicle (200), and dropping the front supporting leg (12) and supporting at the bottom of a foundation pit;

step 2, moving a lifting device (3) of the assembling machine to the first lifting position, lifting the first prefabricated part (101), moving the lifting device (3) to the first assembling position, adjusting and then dropping, and withdrawing the transport vehicle (200);

step 3, the transport vehicle (200) transports a second prefabricated part (102) of the prefabricated part (100) to a second hoisting position, the hoisting device (3) moves to the second hoisting position and hoists the second prefabricated part (102), the hoisting device (3) is moved to a second splicing position and falls down after adjustment, and the transport vehicle (200) exits;

step 4, supporting the jack on the side wall of the foundation pit, and splicing the second prefabricated part (102) and the first prefabricated part (101) into the prefabricated part (100) through the jack;

step 5, moving the lifting device (3) to the front supporting leg (12), moving a splicing device (4) of the splicing machine to a position corresponding to the prefabricated part (100) to be spliced in place, and pressing the prefabricated part (100) to be spliced and the prefabricated part (100) which is spliced completely by the splicing device (4);

step 6, retracting the front supporting leg (12), and pushing the assembling machine to move to the next station by a driving device (2) of the assembling machine;

and 7, repeating the steps 1 to 6 until the assembly of the bottom layer structure of the whole rail transit station is completed.

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