Assembling machine and assembly process of rail transit station substructure

Abstract

The present invention provides an assembling machine and an assembling process for the substructure of a rail transit station, and relates to the technical field of rail transit station construction equipment. The assembling machine includes a frame, a driving device, a lifting device and a splicing device; the frame includes a machine arm, a front leg, a middle leg, a rear leg, a first telescopic member and at least one second telescopic member, the front leg, the middle leg and the rear leg are respectively connected to the machine arm and support the machine arm, the first telescopic member is suitable for driving the front leg to be telescopic, and the second telescopic member is suitable for driving the middle leg and / or the rear leg to be telescopic; the driving device is arranged on the middle leg and / or the rear leg and is suitable for driving the frame to move; the lifting device and the splicing device are respectively connected to the machine arm in a sliding manner, the lifting device is suitable for lifting prefabricated components, and the splicing device is suitable for splicing prefabricated components. In the present invention, the prefabricated components of the last few rings can be assembled without spending a lot of time and manually disassembling or moving the assembling machine, which can improve the assembly efficiency of the substructure of the rail transit station.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit station construction equipment, and in particular to an assembling machine and an assembling process for a rail transit station substructure. Background Art

[0002] With the increase of urban population, rail transit is a mode of travel that can effectively alleviate the pressure of urban traffic. In the past, rail transit stations, such as subway stations, were mostly constructed by on-site casting. Not only are the construction conditions poor and difficult to ensure safety, but the construction period is long and requires a lot of manpower, resulting in high costs. In order to increase the construction speed and solve the problem of long construction period of rail transit projects, more and more rail transit stations choose prefabricated construction. Prefabricated construction generally involves setting up assembly equipment in the foundation pit, transporting the various prefabricated components of the station from off-site to the bottom of the assembly equipment through transportation equipment, and the assembly equipment installs the prefabricated components in the appropriate position in the foundation pit.

[0003] Due to the certain height difference between the bottom of the foundation pit and the platform plane, when the existing assembly equipment is assembled to the end of the foundation pit, its legs are supported at the bottom of the foundation pit, occupying the assembly positions of the last few rings of prefabricated components. It takes a lot of time and manual work to dismantle or move the assembly equipment to make room before assembling the prefabricated components, which makes the overall construction efficiency low. Summary of the invention

[0004] The problem solved by the invention is how to improve the assembly efficiency of the substructure of a rail transit station.

[0005] In order to solve the above problems, the present invention provides an assembly machine for the substructure of a rail transit station, comprising:

[0006] A frame, the frame comprising an arm, a front leg, a middle leg, a rear leg, a first telescopic member and at least one second telescopic member, the front leg, the middle leg and the rear leg are respectively connected to the arm and support the arm, the first telescopic member is suitable for driving the front leg to extend and retract, and the second telescopic member is suitable for driving the middle leg and / or the rear leg to extend and retract;

[0007] A driving device, which is arranged on the middle leg and / or the rear leg and is suitable for driving the frame to move;

[0008] A lifting device and a splicing device, wherein the lifting device and the splicing device are respectively connected to the machine arm in a sliding manner, the lifting device is suitable for lifting prefabricated components, and the splicing device is suitable for splicing the prefabricated components.

[0009] Optionally, the first telescopic member is arranged on the front leg, the second telescopic member is arranged on the rear leg and is suitable for driving the rear leg to be telescopic, and the driving device is arranged on the middle leg.

[0010] Optionally, the driving device includes a third telescopic member and a connecting seat, and in the length direction of the frame, one end of the third telescopic member is connected to the middle leg, and the other end of the third telescopic member is connected to the connecting seat, and the connecting seat is suitable for fixed connection with the spliced ​​prefabricated components.

[0011] Optionally, the lifting device includes a first lifting assembly, a second lifting assembly and a lifting main beam, the lifting main beam is slidably connected to the arm in the length direction of the frame, and the first lifting assembly and the second lifting assembly are respectively slidably connected to the lifting main beam in the width direction of the frame, the prefabricated component includes a first prefabricated component and a second prefabricated component, the first lifting assembly is suitable for lifting the first prefabricated component, and the second lifting assembly is suitable for lifting the second prefabricated component.

[0012] Optionally, the first lifting assembly includes a first lifting trolley, a first transverse cylinder, a first lifting cylinder and a first lifting chain. In the width direction of the frame, the first lifting trolley is arranged in the middle of the lifting main beam and is slidably connected to the lifting main beam, one end of the first transverse cylinder is connected to the lifting main beam, and the other end of the first transverse cylinder is connected to the first lifting trolley. In the height direction of the frame, one end of the first lifting cylinder is connected to the first lifting trolley, and the other end of the first lifting cylinder is connected to the first lifting chain. The first lifting chain is suitable for connecting to the first prefabricated component.

[0013] Optionally, the second lifting assembly includes a second lifting trolley, a second transverse cylinder, a second lifting cylinder and a second lifting chain. In the width direction of the frame, the second lifting trolley is arranged on the side of the lifting main beam and is slidably connected to the lifting main beam, one end of the second transverse cylinder is connected to the lifting main beam, and the other end of the second transverse cylinder is connected to the second lifting trolley. The second lifting cylinder and the second lifting chain are arranged on the part of the second lifting trolley close to the first lifting trolley. In the height direction of the frame, one end of the second lifting cylinder is connected to the second lifting trolley, and the other end of the second lifting cylinder is connected to the second lifting chain. The second lifting chain is suitable for connecting to the second prefabricated component.

[0014] Optionally, the second lifting assembly also includes a third lifting cylinder and a third lifting chain, and the third lifting cylinder and the third lifting chain are arranged on a part of the second lifting trolley away from the first lifting trolley, one end of the third lifting chain is connected to the third lifting cylinder, and the other end of the third lifting chain is suitable for connecting to the second prefabricated component, and the third lifting cylinder is suitable for extending and retracting along the width direction of the frame and driving the third lifting chain to rise and fall.

[0015] Optionally, the splicing device includes a hanging frame and a splicing assembly. In the length direction of the frame, the hanging frame is slidably connected to the machine arm and is suitable for hanging the splicing assembly. The splicing assembly is suitable for splicing the prefabricated components to be spliced ​​with the prefabricated components that have been spliced.

[0016] Optionally, the splicing assembly includes an L-shaped splicing arm and a fourth telescopic member, the fourth telescopic member is arranged on the short side of the L-shaped splicing arm and is suitable for telescoping along the long side direction of the L-shaped splicing arm, one end of the L-shaped splicing arm away from the fourth telescopic member is suitable for fixed connection with the spliced ​​prefabricated component, and the fourth telescopic member is suitable for abutting against the prefabricated component to be spliced.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By slidingly connecting the lifting device and the splicing device to the machine arm respectively, the lifting device is suitable for lifting prefabricated components, and the splicing device is suitable for splicing prefabricated components, the lifting and splicing of prefabricated components can be realized, and the front legs, middle legs and rear legs are respectively connected to the machine arm and support the machine arm, the first telescopic member is suitable for driving the front legs to be extended and retracted, the driving device is arranged on the middle legs and / or the rear legs and is suitable for driving the frame to move, when the assembling machine is assembled to the end position of the foundation pit, the front legs can be raised, and the driving device drives the frame to move so that the front legs span the height difference between the bottom of the foundation pit and the platform plane, and at the same time, the second telescopic member is suitable for driving the middle legs and / or the rear legs to be extended and retracted, thereby adjusting the posture of the machine arm in real time, ensuring the balance of the whole machine, and making the prefabricated components fall into place more accurately. As a result, the prefabricated components of the last few rings can be assembled without spending a lot of time and manual disassembly or moving the assembling machine, which can improve the assembly efficiency of the underlying structure of the rail transit station.

[0019] Another object of the present invention is to provide an assembly process to solve the problem of how to improve the assembly efficiency of the substructure of a rail transit station.

[0020] To solve the above problems, the technical solution of the present invention is achieved as follows:

[0021] An assembly process for the substructure of a rail transit station, using a transport vehicle, a jack and the assembly machine as described above, comprises the following steps:

[0022] Step 1: fold up the front legs of the assembling machine, transport the first prefabricated component of the prefabricated component to the first lifting position, drop the front legs and support them at the bottom of the foundation pit;

[0023] Step 2, moving the lifting device of the assembling machine to the first lifting position and lifting the first prefabricated component, moving the lifting device to the first assembly position, adjusting and then lowering it, and the transport vehicle exits;

[0024] Step 3, the transport vehicle transports the second prefabricated component of the prefabricated component to the second lifting position, the lifting device moves to the second lifting position and lifts the second prefabricated component, moves the lifting device to the second assembly position for adjustment and then falls, and the transport vehicle exits;

[0025] Step 4, supporting the jack on the side wall of the foundation pit, and splicing the second prefabricated component and the first prefabricated component into the prefabricated component by the jack;

[0026] Step 5, moving the lifting device to the front legs, and moving the splicing device of the assembling machine to a position corresponding to the prefabricated component to be spliced, and then the splicing device presses the prefabricated component to be spliced ​​with the prefabricated component that has been spliced;

[0027] Step 6: Fold up the front legs, and the driving device of the assembling machine propels the assembling machine to move to the next station;

[0028] Step 7: Repeat steps 1 to 6 until the assembly of the entire rail transit station substructure is completed.

[0029] The advantages of the assembly process over the prior art are the same as those of the above-mentioned assembly machine and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of an assembling machine and prefabricated components of the underlying structure of a rail transit station in an embodiment of the present invention;

[0031] Figure 2 It is a structural schematic diagram of an assembling machine and prefabricated components of the rail transit station substructure in an embodiment of the present invention from another perspective;

[0032] Figure 3 For the embodiment of the present invention Figure 2 The enlarged view of point A in the middle;

[0033] Figure 4 For the embodiment of the present invention Figure 2 The enlarged view of point B in the middle;

[0034] Figure 5It is a structural schematic diagram of another perspective of the assembly machine of the underlying structure of a rail transit station in an embodiment of the present invention;

[0035] Figure 6 It is a structural schematic diagram of another state of the assembly machine of the rail transit station substructure according to an embodiment of the present invention;

[0036] Figure 7 It is a structural schematic diagram of a splicing assembly in an embodiment of the present invention;

[0037] Figure 8 Schematic diagram of the structure of the transport vehicle in an embodiment of the present invention.

[0038] Description of reference numerals:

[0039] 1-frame, 11-arm, 12-front outrigger, 121-first telescopic member, 13-middle outrigger, 14-rear outrigger, 141-second telescopic member, 2-driving device, 21-third telescopic member, 22-connecting seat, 3-lifting device, 31-first lifting assembly, 311-first lifting trolley, 312-first transverse cylinder, 313-first lifting cylinder, 314-first lifting chain, 32-second lifting assembly, 321- The second lifting trolley, 322-the second transverse cylinder, 323-the second lifting cylinder, 324-the second lifting chain, 325-the third lifting cylinder, 326-the third lifting chain, 33-the lifting main beam, 4-the splicing device, 41-the lifting frame, 42-the splicing assembly, 421-the L-shaped splicing arm, 422-the fourth telescopic member, 100-the prefabricated component, 101-the first prefabricated component, 102-the second prefabricated component, 200-the transport vehicle. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0041] In the description of the present invention, it is necessary to understand that the positive direction of "X" in the drawings represents the left, and correspondingly, the reverse direction of "X" represents the right; the positive direction of "Y" represents the front, and correspondingly, the reverse direction of "Y" represents the back; the positive direction of "Z" represents the top, and correspondingly, the reverse direction of "Z" represents the bottom. 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 the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0042] The terms "first", "second", "third" and "fourth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Moreover, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0043] To solve the above problems, Figure 1 , Figure 5 and Figure 6 As shown, an embodiment of the present invention provides an assembling machine for the underlying structure of a rail transit station, comprising: a frame 1, the frame 1 comprising an arm 11, a front leg 12, a middle leg 13, a rear leg 14, a first telescopic member 121 and at least one second telescopic member 141, the front leg 12, the middle leg 13 and the rear leg 14 are respectively connected to the arm 11 and support the arm 11, the first telescopic member 121 is suitable for driving the front leg 12 to extend and retract, and the second telescopic member 141 is suitable for driving the middle leg 13 and / or the rear leg 14 to extend and retract; a driving device 2, the driving device 2 is arranged on the middle leg 13 and / or the rear leg 14 and is suitable for driving the frame 1 to move; a lifting device 3 and a splicing device 4, the lifting device 3 and the splicing device 4 are respectively slidably connected to the arm 11, the lifting device 3 is suitable for lifting prefabricated components 100, and the splicing device 4 is suitable for splicing prefabricated components 100.

[0044] like Figure 1 , Figure 5 and Figure 6 As shown, in this embodiment, the arm 11 adopts a frame structure formed by connecting the front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam end to end. The front legs 12, the middle legs 13 and the rear legs 14 are each provided with two, namely the left front leg, the right front leg, the left middle leg, the right middle leg, the left rear leg and the right rear leg. The legs are respectively arranged at the front, middle and rear of the left longitudinal beam and the right longitudinal beam. The legs at various positions on the left longitudinal beam and the right longitudinal beam correspond to each other and can be connected to the left longitudinal beam and the right longitudinal beam by welding, riveting or bolting, which is not limited here.

[0045] Each leg can adopt a telescopic structure, for example, a telescopic structure composed of an inner cylinder, an outer cylinder and a telescopic part, wherein the outer cylinder is hollow inside, the inner cylinder is inserted into the outer cylinder, one end of the telescopic part is connected to the outer cylinder, and the other end of the telescopic part is connected to the inner cylinder, and the legs are driven to rise and fall through the extension and retraction of the telescopic part, wherein the cross-sectional shape of the inner cylinder and the outer cylinder can be circular, square or a combination thereof, and the telescopic part can adopt a structure such as a cylinder, an oil cylinder or an electric cylinder.

[0046] The driving device 2 can adopt a walking structure in which a motor drives a tire or track to roll, a cylinder or oil cylinder drives a slider to slide along a slide rail, or other moving methods. According to the specific structure of the middle leg 13 or the rear leg 14 and the actual driving requirements, the driving device 2 can be set with one set on the left middle leg and the right middle leg, or one set on the left rear leg and the right rear leg, or one set on the middle leg, the right middle leg, the left rear leg and the right rear leg at the same time; the lifting device 3 and the splicing device 4 can be slidably connected to the machine arm through a slide rail slot structure or a hook wheel structure.

[0047] In this way, by slidingly connecting the lifting device 3 and the splicing device 4 to the machine arm 11 respectively, the lifting device 3 is suitable for lifting the prefabricated component 100, and the splicing device 4 is suitable for splicing the prefabricated component 100, the lifting and splicing of the prefabricated component 100 can be realized, and the front leg 12, the middle leg 13 and the rear leg 14 are respectively connected to the machine arm 11 and support the machine arm 11, the first telescopic member 121 is suitable for driving the front leg 12 to extend and retract, and the driving device 2 is arranged on the middle leg 13 and / or the rear leg 14 and is suitable for driving the frame 1 to move. When the assembling machine is assembled to the foundation pit When the machine reaches the rear end position, the front leg 12 can be raised, and the driving device 2 drives the frame 1 to move so that the front leg 12 spans the height difference between the bottom of the foundation pit and the platform plane. At the same time, the second telescopic member 141 is suitable for driving the middle leg 13 and / or the rear leg 14 to extend and retract, thereby adjusting the posture of the machine arm 11 in real time to ensure the balance of the whole machine and make the prefabricated component 100 fall into place more accurately. As a result, the last few rings of prefabricated components 100 can be assembled without spending a lot of time and manual disassembly or moving the assembly machine, which can improve the assembly efficiency of the underlying structure of the rail transit station.

[0048] Optionally, 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 is suitable for driving the rear leg 14 to telescope, and the driving device 2 is disposed on the middle leg 13 .

[0049] like Figure 1 , Figure 5 and Figure 6 As shown, in this embodiment, the front leg 12 and the rear leg 14 adopt a retractable structure, the middle leg 13 adopts a non-retractable structure with a fixed height, and the first telescopic member 121 and the second telescopic member 141 both adopt a telescopic cylinder. Telescopic cylinders are commonly used in the engineering field, are affordable, relatively economical, and have strong versatility and are easy to maintain.

[0050] Specifically, the front support leg 12 includes a front support leg outer column, a front support leg inner column, a front telescopic cylinder and a front support leg support part and other structures. The lower end of the front support leg outer column is fixedly connected to the front part of the machine arm 11, and the upper end of the front support leg outer column extends a certain distance above the machine arm 11. This arrangement can increase the telescopic range of the front support leg 12 and facilitate the front support leg 12 to cross the height difference between the bottom of the foundation pit and the platform plane. The upper end of the front support leg inner column is sleeved in the front support leg outer column, the fixed end of the front telescopic cylinder is fixedly connected to the front support leg outer column, the movable end of the front telescopic cylinder is movably connected to the lower end of the front support leg inner column, and the front support leg support part is connected to the lower end of the front support leg inner column.

[0051] The middle leg 13 includes structures such as a middle leg column and a middle leg sliding part. The upper end of the middle leg column is fixedly connected to the middle part of the arm 11, and the lower end of the middle leg column is connected to the middle leg sliding part. During the construction process, a slide rail or a slide groove is usually provided on the assembled prefabricated component 100, such as a track made of I-beam or a slide groove made of groove-shaped steel. The middle leg sliding part can be supported on the above-mentioned slide rail or slide groove and slide with the slide rail or slide groove to facilitate the movement of the entire machine.

[0052] The structure of the rear leg 14 is similar to that of the front leg 12, except that the upper end of the rear leg outer column of the rear leg 14 does not extend above the machine arm 11, and the telescopic range of the rear telescopic cylinder is smaller than that of the front telescopic cylinder. The rear leg 14 is provided in this way to reduce the overall height of the assembler, so that the assembler can adapt to a smaller construction space and improve versatility. Moreover, the rear leg 14 can also fine-tune the height of the rear part of the machine arm 11 when the lifting device 3 moves to the front part of the machine arm 11 for lifting operations, and cooperate with the front leg 12 to control the balance of the machine arm 11, thereby controlling the posture of the whole machine and making the component placement 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, which can be supported on the above-mentioned slide rail or slide groove, and slide with the slide rail or slide groove, so as to facilitate the movement of the whole machine.

[0053] The third telescopic member 21 also uses a telescopic cylinder. The advantages of using a telescopic cylinder are the same as those mentioned above and will not be repeated here. For the convenience of description, it can be called a driving cylinder. The driving cylinder is arranged along the length direction of the frame 1. An ear plate is provided on the sliding part of the middle leg. One end of the driving cylinder is hinged to the ear plate, and the other end of the driving cylinder is hinged or fixedly connected to the connecting seat 22. A fixed position suitable for fixing the connecting seat 22 is provided at every interval on the above-mentioned slide rail or slide groove, such as a groove structure for installing a fixed baffle or a locking hole for installing a locking bolt. When the whole machine needs to be moved to the next station, the connecting seat 22 can be fixed to a certain fixed position by a locking bolt or a fixed baffle, and the middle leg 13 is driven by the telescopic drive of the driving cylinder to drive the whole machine to move along the slide rail or slide groove.

[0054] Among them, Figure 1 As shown, the length direction of the rack 1 refers to the direction of the Y axis.

[0055] Optionally, the lifting device 3 includes a first lifting assembly 31, a second lifting assembly 32 and a lifting main beam 33. In the length direction of the frame 1, the lifting main beam 33 is slidably connected to the arm 11. In the width direction of the frame 1, the first lifting assembly 31 and the second lifting assembly 32 are respectively slidably connected to the lifting main beam 33. The prefabricated component 100 includes a first prefabricated component 101 and a second prefabricated component 102. The first lifting assembly 31 is suitable for lifting the first prefabricated component 101, and the second lifting assembly 32 is suitable for lifting the second prefabricated component 102.

[0056] like Figure 2 and Figure 5 As shown, in this embodiment, the lifting main beam 33 is arranged along the width direction of the frame 1, and the upper end surfaces of the left and right longitudinal beams of the arm 11 are provided with slideways along the length direction of the frame 1, such as tracks made of I-beams or slideways made of grooved steel, and the lower end surface of the lifting main beam 33 is installed with rollers, which are suitable for rolling in the slideways. The power device that drives the lifting main beam 33 to slide along the left and right longitudinal beams of the arm 11 can adopt a structure composed of a motor and a chain, or a structure similar to the above-mentioned driving device 2 or other types of power devices, which are not limited here.

[0057] The left side of the lifting beam 33 extends out of the left longitudinal beam of the arm 11, and the right side of the lifting beam 33 extends out of the right longitudinal beam of the arm 11. The first lifting assembly 31 is arranged on the lifting beam 33 and is located between the left longitudinal beam and the right longitudinal beam of the arm 11. The second lifting assembly 32 is provided with two groups, and the two groups of second lifting assemblies 32 are respectively arranged on the left side and the right side of the lifting beam 33. The first lifting assembly 31 and the two groups of second lifting assemblies 32 are all slidably connected to the lifting beam 33 and can slide along the width direction of the frame 1, so that the position of the prefabricated component 100 can be fine-tuned during lifting to make its placement more accurate.

[0058] In order to facilitate transportation and carry out other operations in a limited construction space, the prefabricated component 100 includes a first prefabricated component 101 and two second prefabricated components 102, the first prefabricated component 101 is the middle part, and the two second prefabricated components 102 are respectively the left part and the right part. The first prefabricated component 101 and the second prefabricated component 102 are respectively transported to the construction site by a transport vehicle 200, hoisted into place, and then spliced ​​on site, wherein the first lifting assembly 31 is used to lift the first prefabricated component 101, and the two sets of second lifting assemblies 32 are respectively used to lift the second prefabricated components 102 on the left and right sides.

[0059] Among them, Figure 1As shown, the width direction of the frame 1 refers to the direction of the X axis.

[0060] Optionally, the first lifting assembly 31 includes a first lifting trolley 311, a first transverse cylinder 312, a first lifting cylinder 313 and a first lifting chain 314. In the width direction of the frame 1, the first lifting trolley 311 is arranged in the middle of the lifting main beam 33 and is slidably connected to the lifting main beam 33, one end of the first transverse cylinder 312 is connected to the lifting main beam 33, and the other end of the first transverse cylinder 312 is connected to the first lifting trolley 311. In the height direction of the frame 1, one end of the first lifting cylinder 313 is connected to the first lifting trolley 311, and the other end of the first lifting cylinder 313 is connected to the first lifting chain 314. The first lifting chain 314 is suitable for connecting to the first prefabricated component 101.

[0061] like Figure 2 and Figure 3 As shown, in the present embodiment, the first lifting trolley 311 is arranged on the upper end surface of the lifting main beam 33, and a slide rail structure can be arranged between the first lifting trolley 311 and the upper end surface of the lifting main beam 33, such as a track made of I-beam or a slide groove made of grooved steel, or a smooth pad can be arranged, and a first transverse movement cylinder 312 is respectively provided at the left end and the right end of the first lifting trolley 311, and the two first transverse movement cylinders 312 are respectively fixedly connected to the lifting main beam 33, and the mutual cooperation of the two first transverse movement cylinders 312 can push the first lifting trolley 311 to move along the width direction of the frame 1, so that the first prefabricated component 101 can be more accurately positioned when being lifted.

[0062] In one embodiment, the lifting main beam 33 adopts a solid structure, the front part of the first lifting trolley 311 exceeds the front part of the lifting main beam 33, and / or the rear part of the first lifting trolley 311 exceeds the rear part of the lifting main beam 33, the first lifting cylinder 313 and the first lifting chain 314 are arranged on the front part of the first lifting trolley 311 and / or on the rear part of the first lifting trolley 311. In this embodiment, the lifting main beam 33 is stronger and the lifting capacity is stronger.

[0063] In another embodiment, the lifting main beam 33 adopts a frame structure with an installation space in the middle. The first lifting trolley 311 spans the lifting main beam 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 from the installation space in the middle of the lifting main beam 33, thereby achieving connection with the first prefabricated component 101. The lifting device 3 in this embodiment has a more sophisticated structure and a lighter weight, which can not only reduce costs, but also save space and has stronger versatility.

[0064] Optionally, the second lifting assembly 32 includes a second lifting trolley 321, a second transverse cylinder 322, a second lifting cylinder 323 and a second lifting chain 324. In the width direction of the frame 1, the second lifting trolley 321 is arranged on the side of the lifting main beam 33 and is slidably connected to the lifting main beam 33, one end of the second transverse cylinder 322 is connected to the lifting main beam 33, and the other end of the second transverse cylinder 322 is connected to 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 cylinder 323 is connected to the second lifting trolley 321, and the other end of the second lifting cylinder 323 is connected to the second lifting chain 324. The second lifting chain 324 is suitable for connecting to the second prefabricated component 102.

[0065] like Figure 2 and Figure 4 As shown, in the present embodiment, the structure of the second lifting assembly 32 is similar to that of the first lifting assembly 31, with the difference being that, since the second lifting assembly 32 is arranged on the side of the lifting main beam 33, only one second transverse cylinder 322 of the second lifting assembly 32 is provided, and the second transverse cylinder 322 is arranged on the side of the second lifting trolley 321 close to the first lifting trolley 311 and is fixedly connected to the lifting main beam 33. The second transverse cylinder 322 can be extended and retracted along the width direction of the frame 1, thereby driving the second lifting trolley 321 to move, so that the second lifting assembly 32 can more accurately place the second prefabricated component 102 when lifting it.

[0066] Among them, Figure 1 As shown, the height direction of the rack 1 refers to the direction of the Z axis.

[0067] Optionally, the second lifting assembly 32 also includes a third lifting cylinder 325 and a third lifting chain 326, and the third lifting cylinder 325 and the third lifting chain 326 are arranged on the part 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, and the other end of the third lifting chain 326 is suitable for being connected to the second prefabricated component 102, and the third lifting cylinder 325 is suitable for extending and retracting along the width direction of the frame 1 and driving the third lifting chain 326 to rise and fall.

[0068] like Figure 2 and Figure 4As shown, in the present embodiment, since the cross-sectional shape of the second prefabricated component 102 is generally L-shaped, its height away from the first prefabricated component 101 is greater than its height close to the first prefabricated component 101. Therefore, the lifting height of the second lifting assembly 32 close to the side wall of the foundation pit is relatively small. In order to avoid the second prefabricated component 102 from bottoming out and being damaged due to insufficient lifting height, a third lifting cylinder 325 and a third lifting chain 326 are further provided on the part of the second lifting trolley 321 away from the first lifting trolley 311. The third lifting oil cylinder 325 is arranged on the upper end surface of the second lifting trolley 321 along the width direction of the frame 1. A pulley is provided at one end of the second lifting trolley 321 close to the side wall of the foundation pit. The third lifting chain 326 is wound around the pulley. One end of the third lifting chain 326 is connected to the third lifting cylinder 325, and the other end of the third lifting chain 326 can be connected to the second prefabricated component 102.

[0069] Optionally, the splicing device 4 includes a hoisting frame 41 and a splicing assembly 42. In the length direction of the frame 1, the hoisting frame 41 is slidably connected to the arm 11 and is suitable for hoisting the splicing assembly 42. The splicing assembly 42 is suitable for splicing the prefabricated component 100 to be spliced ​​with the prefabricated component 100 that has been spliced.

[0070] like Figure 2 and Figure 5 As shown, in this embodiment, since the cross-sectional shapes of the first prefabricated component 101 and the second prefabricated component 102 are different, the space they occupy at the bottom of the frame 1 is different. Therefore, in order to reasonably utilize the space at the bottom of the frame 1, the hanging frame 41 includes a first hanging frame and a second hanging frame. The first hanging frame is used to hang and splice the splicing assembly 42 of the first prefabricated component 101, and the second hanging frame is used to hang and splice the splicing assembly 42 of the second prefabricated component 102. The first hanging frame is arranged below the arm 11 and is located between the left leg and the right leg of the frame 1. It can be slidably connected to the left longitudinal beam and the right longitudinal beam of the arm 11 through a hook wheel structure. At the same time, the first hanging frame is also provided with an electric hoist that can be lifted and lowered along the height direction of the frame 1, so that the splicing assembly 42 can be stored on the first hanging frame or removed from the first hanging frame for splicing operations.

[0071] There are two second hoisting frames, which are also arranged below the arm 11. One second hoisting frame is located on the left side of the left leg of the frame 1, and the other second hoisting frame is located on the right side of the right leg of the frame 1. The lower parts of the left longitudinal beam and the right longitudinal beam are provided with connecting parts protruding outward, and the connecting parts are provided with sliding grooves along the length direction of the frame 1. The two second hoisting frames are respectively provided with slide rail structures suitable for sliding connection with the sliding grooves. A small crane is also provided at the position corresponding to the two second hoisting frames on the lifting main beam 33, which is used to store the splicing assembly 42 on the second hoisting frame or remove it from the second hoisting frame for splicing operations.

[0072] Optionally, the splicing assembly 42 includes an L-shaped splicing arm 421 and a fourth telescopic member 422, the fourth telescopic member 422 is arranged on the short side of the L-shaped splicing arm 421, and is suitable for telescoping along the long side direction of the L-shaped splicing arm 421, and one end of the L-shaped splicing arm 421 away from the fourth telescopic member 422 is suitable for being fixedly connected to the spliced ​​prefabricated component 100, and the fourth telescopic member 422 is suitable for abutting against the prefabricated component 100 to be spliced.

[0073] like Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, the fourth telescopic member 422 also adopts a telescopic cylinder. The advantages of using a telescopic cylinder are the same as those described above and will not be described in detail here. For the convenience of description, it can be called a splicing cylinder. The splicing cylinder is fixed on the short side of the L-shaped splicing arm 421 and is arranged parallel to the long side of the L-shaped splicing arm 421. There are multiple groups of splicing components 42. After the first prefabricated component 101 and the second prefabricated component 102 are hoisted to the assembly position, they are pushed from the left and right sides to the middle by the thin-walled jacks abutting on the side walls of the foundation pit to splice into a prefabricated component 100. Then, the end of the L-shaped splicing arm 421 away from the splicing cylinder is fixed to the upper end surface of the prefabricated component 100 that has been spliced ​​in the previous station by bolts, and the movable end of the splicing cylinder is abutted against the front end surface of the prefabricated component 100 to be spliced. In this way, multiple groups of splicing components 42 are evenly arranged at each clamping point along the width direction of the frame 1 in turn, and the splicing cylinders of each splicing component 42 are driven to retract and retract at the same time, thereby completing the splicing of the prefabricated components 100, which can improve the splicing efficiency and splicing quality.

[0074] Another embodiment of the present invention provides an assembly process of a rail transit station substructure, using a transport vehicle 200, a jack and the assembly machine as described above, and comprising the following steps:

[0075] Step 1: fold up the front legs 12 of the assembling machine, transport the first prefabricated component 101 of the prefabricated component 100 to the first lifting position by the transport vehicle 200, drop the front legs 12 and support them at the bottom of the foundation pit;

[0076] Specifically, Figure 1 , Figure 6 and Figure 8As shown, the transport vehicle 200 includes a first transport vehicle, and the first prefabricated component 101 is the middle part of the prefabricated component 100, and its structure is relatively regular. In the actual construction process, according to the on-site construction conditions, a track can be laid between the two side legs of the assembling machine at the bottom of the foundation pit. The track can be disassembled and transferred according to the progress of the project, and the first transport vehicle dedicated to transporting the first prefabricated component 101 is set on the track, thereby improving the construction efficiency. When the first transport vehicle transports the first prefabricated component 101 from outside the site to the vicinity of the assembling machine, since the width of the first prefabricated component 101 is greater than the distance between the left front leg and the right front leg, in order to facilitate the passage of the first transport vehicle, the front leg 12 is folded up. After the first transport vehicle transports the first prefabricated component 101 to the first lifting position below the frame 1, the front leg 12 is dropped and supported at the bottom of the foundation pit so as to bear the load when lifting the first prefabricated component 101 together with the middle leg 13 and the rear leg 14.

[0077] The first lifting position refers to the middle area between the front supporting leg 12 and the middle supporting leg 13 below the machine arm 11 .

[0078] Step 2, move the lifting device 3 of the assembling machine to the first lifting position and lift the first prefabricated component 101, move the lifting device 3 to the first assembly position, adjust it, and then drop it, and the transport vehicle 200 exits;

[0079] Specifically, before lifting the first prefabricated component 101, in order to ensure the balance and safety of the assembler, the lifting device 3 will generally move to the rear of the frame 1 and the middle leg 13 and the rear leg 14 will bear the load of the lifting device 3. When the first prefabricated component 101 is delivered to the position and the postures of the front leg 12, the middle leg 13 and the rear leg 14 are adjusted, the lifting device 3 will be moved to the first lifting position, and the first lifting component 31 of the lifting device 3 will lift the first prefabricated component 101, move it to the first assembly position, adjust the position, and then fall down, and then withdraw the first transport vehicle after unloading.

[0080] Among them, the first assembly position refers to the position at the bottom of the foundation pit that is 10 mm away from the first prefabricated component of the previous ring.

[0081] Step 3, the transport vehicle 200 transports the second prefabricated component 102 of the prefabricated component 100 to the second lifting position, the lifting device 3 moves to the second lifting position and lifts the second prefabricated component 102, moves the lifting device 3 to the second assembly position, adjusts it, and then drops it, and the transport vehicle 200 exits;

[0082] Specifically, the transport vehicle 200 also includes a second transport vehicle. The second prefabricated component 102 is the two side parts of the prefabricated component 100, and its width is smaller than the distance between the support legs on one side of the assembler and the side wall of the foundation pit. In the actual construction process, according to the on-site construction conditions, a track can be laid at the bottom of the foundation pit between the two side legs of the assembler and the side wall of the foundation pit. The track can be disassembled and transferred according to the progress of the project, and a second transport vehicle dedicated to transporting the second prefabricated component 102 can be set on the track, thereby improving construction efficiency.

[0083] When the second prefabricated component 102 is delivered to the location, 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 component 102, moves it to the second assembly position, adjusts the position and then drops it, and then the unloaded second transport vehicle withdraws.

[0084] Among them, the second lifting position refers to the area between the front support leg 12 and the middle support leg 13 on the left and right sides below the arm 11; the second assembly position refers to the position 10 mm away from the bottom of the foundation pit and the second prefabricated component that has been spliced ​​in the previous ring.

[0085] Step 4: Support the jack on the side wall of the foundation pit, and use the jack to splice the second prefabricated component 102 and the first prefabricated component 101 into the prefabricated component 100;

[0086] Specifically, after the lifting device 3 lifts all the first prefabricated component 101 and the two second prefabricated components 102 into place, a gap with a certain spacing is left between the outward side walls of the two second prefabricated components 102 and their corresponding side walls of the foundation pit, and the inward side walls of the two second prefabricated components 102 are provided with a docking structure matching the outward side walls of the first prefabricated component 101, and a thin-walled jack is arranged in the gap, one end of the thin-walled jack is abutted against the side wall of the foundation pit, and the other end of the thin-walled jack is abutted against the outward side wall of the second prefabricated component 102, and the second prefabricated component 102 is spliced ​​with the first prefabricated component 101 through the pushing of the thin-walled jack to form a complete ring of prefabricated components 100.

[0087] Step 5, move the lifting device 3 to the front leg 12, and move the splicing device 4 of the assembling machine to a position corresponding to the prefabricated component 100 to be spliced. After the splicing device 4 is in place, the prefabricated component 100 to be spliced ​​and the prefabricated component 100 that has been spliced ​​are pressed tightly;

[0088] Specifically, during the lifting operation, in order to prevent interference with the lifting device 3, the splicing device 4 is usually moved to the rear of the assembling machine. After the first prefabricated component 101 and the second prefabricated component 102 are spliced, the lifting device 3 is moved to a position close to the front support leg 12 to make room for the splicing device 4. Then, the lifting frame 41 of the splicing device 4 is moved to a position corresponding to the prefabricated component 100 to be spliced, and the splicing components 42 are lowered and evenly arranged at each clamping point along the width direction of the frame 1. At the same time, the splicing cylinders of each splicing component 42 are driven to extend and retract, thereby completing the splicing of the prefabricated components 100 at this workstation.

[0089] Step 6, retract the front legs 12, and the driving device 2 of the assembling machine propels the assembling machine to move to the next station;

[0090] Specifically, the front support leg 12 is retracted to break away from the bottom of the foundation pit, the last section of rail installed on the prefabricated components 100 that have been spliced ​​behind the assembling machine is removed, and it is laid on the frontmost ring of prefabricated components 100 that have just been spliced. Then, the connecting seat 22 of the driving device 2 is fixed to the corresponding position on the rail, and the driving cylinder is used to propel the assembling machine as a whole to the next workstation, ready to assemble the next ring of prefabricated components 100.

[0091] Step 7: Repeat steps 1 to 6 until the assembly of the entire rail transit station substructure is completed.

[0092] When the assembling machine moves to a position near the end of the foundation pit, in order not to occupy the construction space of the last few rings of prefabricated components 100, the front legs 12 of the assembling machine can be raised to a height slightly higher than the platform plane, and the driving device 2 can be used to drive the assembling machine to move forward as a whole, so that the front legs 12 can span the height difference between the bottom of the foundation pit and the platform plane, and then the front legs 12 are lowered to support them on the platform plane, thereby freeing up construction space for the last few rings of prefabricated components 100 and improving construction efficiency.

[0093] It should be noted that the first transport vehicle and the second transport vehicle may also be wheeled or tracked transport vehicles 200 according to specific construction conditions. The first prefabricated component 101 and the second prefabricated component 102 may share the same transport vehicle 200 or may use different transport vehicles 200.

[0094] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. An assembly process of an assembly machine based on the underlying structure of a rail transit station, characterized in that: A transport vehicle (200), a jack and the assembling machine are used, and the assembling machine comprises: A frame (1), the frame (1) comprising a frame arm (11), a front support leg (12), a middle support leg (13), a rear support leg (14), a first telescopic member (121), and at least one second telescopic member (141), the front support leg (12), the middle support leg (13), and the rear support leg (14) being respectively connected to the frame arm (11) and supporting the frame arm (11), the first telescopic member (121) being used to drive the front support leg (12) to be telescopic, the first telescopic member (121) being arranged on the front support leg (12), the second telescopic member (141) being arranged on the rear support leg (14) and being used to drive the rear support leg (14) to be telescopic, and the driving device (2) being arranged on the middle support leg (13) and being used to drive the frame (1) to move; A lifting device (3) and a splicing device (4), wherein the lifting device (3) and the splicing device (4) are respectively slidably connected to the machine arm (11), the lifting device (3) is used to lift the prefabricated component (100), and the splicing device (4) is used to splice the prefabricated component (100); The lifting device (3) comprises a first lifting assembly (31), a second lifting assembly (32) and a lifting main beam (33); in the length direction of the frame (1), the lifting main beam (33) is slidably connected to the arm (11); in the width direction of the frame (1), the first lifting assembly (31) and the second lifting assembly (32) are respectively slidably connected to the lifting main beam (33); the prefabricated component (100) comprises a first prefabricated component (101) and a second prefabricated component (102); the first lifting assembly (31) is used to lift the first prefabricated component (101), and the second lifting assembly (32) is used to lift the second prefabricated component (102); The first lifting assembly (31) comprises a first lifting trolley (311), a first transverse oil cylinder (312), a first lifting cylinder (313) and a first lifting chain (314); in the width direction of the frame (1), the first lifting trolley (311) is arranged in the middle of the lifting main beam (33) and is slidably connected to the lifting main beam (33); one end of the first transverse oil cylinder (312) is connected to the lifting main beam (33); the other end of the first transverse oil cylinder (312) is connected to the first lifting trolley (311); in the height direction of the frame (1), one end of the first lifting cylinder (313) is connected to the first lifting trolley (311); the other end of the first lifting cylinder (313) is connected to the first lifting chain (314); the first lifting chain (314) is used to be connected to the first prefabricated component (101); The assembly process of the assembly machine based on the rail transit station substructure includes the following steps: Step 1: fold up the front legs (12) of the assembling machine, and the transport vehicle (200) transports the first prefabricated component (101) of the prefabricated components (100) to a first lifting position, and lowers the front legs (12) to support them at the bottom of the foundation pit, wherein the first lifting position refers to the area between the front legs (12) and the middle legs (13) below the machine arm (11); Step 2, moving the lifting device (3) of the assembling machine to the first lifting position and lifting the first prefabricated component (101), moving the lifting device (3) to the first assembly position, adjusting and then lowering, and the transport vehicle (200) withdrawing, wherein the first assembly position refers to the position at which the bottom of the foundation pit is 10 mm away from the first prefabricated component that has been assembled in the previous ring; Step 3, the transport vehicle (200) transports the second prefabricated component (102) of the prefabricated component (100) to a second lifting position, the lifting device (3) moves to the second lifting position and lifts the second prefabricated component (102), moves the lifting device (3) to the second assembly position, adjusts it, and then drops it, and the transport vehicle (200) exits, wherein the second lifting position refers to the area between the front support leg (12) and the middle support leg (13) below the arm (11) and located on the left and right sides, and the second assembly position refers to the position at the bottom of the foundation pit that is 10 mm away from the second prefabricated component that has been assembled in the previous ring; Step 4: supporting the jack on the side wall of the foundation pit, and using the jack to splice the second prefabricated component (102) and the first prefabricated component (101) into the prefabricated component (100); Step 5, moving the lifting device (3) to the front leg (12), and moving the splicing device (4) of the assembling machine to a position corresponding to the prefabricated component (100) to be spliced, wherein the splicing device (4) presses the prefabricated component (100) to be spliced ​​and the prefabricated component (100) that has been spliced ​​tightly; Step 6: fold up the front legs (12), and the driving device (2) of the assembling machine drives the assembling machine to move to the next station; Step 7: Repeat steps 1 to 6 until the assembly of the entire rail transit station substructure is completed.

2. The assembly process of the assembly machine based on the rail transit station substructure according to claim 1 is characterized in that: The driving device (2) comprises a third telescopic member (21) and a connecting seat (22); in the length direction of the frame (1), one end of the third telescopic member (21) is connected to the middle leg (13), and the other end of the third telescopic member (21) is connected to the connecting seat (22); the connecting seat (22) is used for fixed connection with the prefabricated components (100) that have been spliced.

3. The assembly process of the assembly machine based on the rail transit station substructure according to claim 1 is characterized in that: The second lifting assembly (32) comprises a second lifting trolley (321), a second transverse oil cylinder (322), a second lifting cylinder (323) and a second lifting chain (324). In the width direction of the frame (1), the second lifting trolley (321) is arranged on the side of the lifting main beam (33) and is slidably connected to the lifting main beam (33), one end of the second transverse oil cylinder (322) is connected to the lifting main beam (33), and the other end of the second transverse oil cylinder (322) is connected to the second lifting trolley (321). 1) connection, 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 cylinder (323) is connected to the second lifting trolley (321), and the other end of the second lifting cylinder (323) is connected to the second lifting chain (324), and the second lifting chain (324) is used to connect to the second prefabricated component (102).

4. The assembly process of the assembly machine based on the rail transit station substructure according to claim 3 is characterized in that: The second lifting assembly (32) also includes a third lifting cylinder (325) and a third lifting chain (326), wherein 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 to the third lifting cylinder (325), and the other end of the third lifting chain (326) is used to connect to the second prefabricated component (102), and the third lifting cylinder (325) is used to extend and retract along the width direction of the frame (1) and drive the third lifting chain (326) to rise and fall.

5. The assembly process of the assembly machine based on the rail transit station substructure according to claim 1 is characterized in that: The splicing device (4) comprises a hanging frame (41) and a splicing assembly (42); in the length direction of the frame (1), the hanging frame (41) is slidably connected to the machine arm (11) and is used to hang the splicing assembly (42); the splicing assembly (42) is used to splice the prefabricated component (100) to be spliced ​​with the prefabricated component (100) that has been spliced.

6. The assembly process of the assembly machine based on the rail transit station substructure according to claim 5 is characterized in that: The splicing assembly (42) comprises an L-shaped splicing arm (421) and a fourth telescopic member (422); the fourth telescopic member (422) is arranged on the short side of the L-shaped splicing arm (421) and is used to be telescopic along the long side of the L-shaped splicing arm (421); an end of the L-shaped splicing arm (421) away from the fourth telescopic member (422) is used to be fixedly connected to the spliced ​​prefabricated component (100); and the fourth telescopic member (422) is used to abut against the prefabricated component (100) to be spliced.

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