A tunnel lining segment assembling trolley

Abstract

The present invention provides a segment assembling trolley for tunnel lining, which comprises a frame, a traveling mechanism, an electric-hydraulic unit, a circumferential assembling mechanism, a longitudinal shifting and transporting mechanism, a jacking mechanism and a pressing mechanism; the circumferential trolley of the circumferential assembling mechanism is installed on a circumferential track, and a longitudinal shifting frame is connected above the circumferential trolley through a first jacking oil cylinder, an installation base is connected above the longitudinal shifting frame through a first longitudinal shifting oil cylinder, and a lining segment suction cup is connected above the installation base through a multi-degree-of-freedom adjustment unit; the longitudinal shifting and transporting mechanism has a longitudinal shifting chassis installed on a first longitudinal shifting track, a load-bearing slider installed on a second longitudinal shifting track, a transverse shifting frame connected above the longitudinal shifting chassis through a third transverse shifting oil cylinder, and the second longitudinal shifting track is installed above the transverse shifting frame through a third jacking oil cylinder; the pressing mechanisms are symmetrically installed on both sides of the frame close to the circumferential assembling mechanism. This assembling trolley can perform segmented assembling on the prefabricated lining, and has relatively high assembling efficiency and high precision.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel lining installation, and particularly to a segment assembling trolley for tunnel lining. Background Art

[0002] In the past two decades, China's transportation infrastructure has witnessed unprecedented development. Among them, mountain tunnels have evolved from traditional support structures to modern support structures, and from integral linings to composite linings. The construction methods of mountain tunnels have also developed from traditional mining methods to the New Austrian Tunneling Method (NATM) and Tunnel Boring Machine (TBM) construction methods. Currently, the NATM composite lining has been widely used around the world. However, the NATM has multiple construction processes, complex construction organization, a relatively long construction period, a harsh construction environment, and ineffective guarantee of construction quality. Nevertheless, it has good geological adaptability and unique advantages of economy and flexibility. The TBM method has simple processes, fast construction speed, and good safety. However, the TBM method is generally only used for circular long tunnels mainly composed of hard rocks and is not applicable to short tunnels and underground projects with complex geological conditions. In order to adapt to various geological conditions, speed up the construction speed, and improve the project quality, it is necessary to make some improvements to the current popular construction methods or lining structure forms in order to obtain good economic and technical benefits.

[0003] From the perspective of excavation methods, the drill and blast excavation method applied in the New Austrian Tunneling Method has strong adaptability and can be applied to various geological conditions. Based on meeting the tunnel construction clearance, cross-sections of various shapes can be excavated, with strong adaptability. In contrast, the TBM tunneling method has strict requirements for geological conditions, cross-section shapes, and tunnel lengths, reducing its application scope and having low adaptability. Compared with the New Austrian Tunneling Method, it lacks advantages. Additionally, from the perspective of lining structure forms, the composite lining structure adopted in the New Austrian Tunneling Method fully embodies its design and construction concept, that is, giving full play to the self-bearing capacity of the surrounding rock. However, its construction speed is slow, and the construction process is numerous, and it can no longer meet the requirements of modern tunnel construction for mechanization level, construction efficiency, safety, and environmental protection. Moreover, the secondary lining cannot bear load immediately after pouring. The precast lining adopted by the TBM method has fast lining construction speed, reliable quality, and the lining can bear load immediately, greatly improving the tunnel construction environment. And due to the existence of various joints in the precast lining, the flexibility of the lining is increased, which also reflects the concept of the New Austrian Tunneling Method to a certain extent. At the same time, with the development of tunnel construction mechanization and construction factory technology, precast linings are increasingly widely applied to various tunnels and underground projects. Precast tunnel linings have many advantages: (1) Once assembled, it does not require a curing time and can bear the pressure of the surrounding rock; (2) A large number of components can be mass-produced in the factory and assembled mechanized, thus improving the working conditions and saving labor; (3) When assembling, no temporary supports such as arch frames and formworks are required, thus saving a large amount of support materials and labor; (4) The assembling speed is increased due to the adoption of mechanization, shortening the construction period and possibly reducing the cost; (5) The precast lining has strong adaptability and can be adopted in some special environments such as high-cold areas.

[0004] In order to facilitate the installation of precast tunnel linings, currently, one ring of tunnel lining segments can be divided into multiple pieces for separate assembly. Usually, the assembly of one ring of tunnel lining segments includes the assembly of 1 arch lining segment and 2 side lining segments. Therefore, it is very necessary to provide a trolley that can install arch lining segments and side lining segments to solve the problems of speed, quality, and efficiency in current engineering construction. Summary of the Invention

[0005] The present invention provides a tunnel lining segment assembly trolley that can assemble precast linings in blocks with relatively high assembly efficiency and accuracy.

[0006] The technical solution adopted to achieve the above object of the present invention is as follows:

[0007] A tunnel lining segment assembly trolley includes at least a frame, a traveling mechanism connected to the bottom of the frame, and an electro-hydraulic unit. A circumferential assembly mechanism, a longitudinal movement and transportation mechanism, a jacking mechanism, and a pressing mechanism are installed on the frame;

[0008] The circumferential assembly mechanism includes a circumferential track, a circumferential trolley, a longitudinal moving frame, a mounting base, and a lining segment suction cup. The circumferential track is fixedly connected to the front end of the vehicle frame in the transverse direction. The circumferential trolley is installed on the circumferential track and moves along the circumferential track. The longitudinal moving frame is connected above the circumferential trolley through a first lifting oil cylinder. The telescopic movement of the first lifting oil cylinder drives the longitudinal moving frame to move in the vertical direction. The mounting base is connected above the longitudinal moving frame through a first longitudinal moving oil cylinder. The telescopic movement of the first longitudinal moving oil cylinder drives the mounting base to move longitudinally. The lining segment suction cup is connected above the mounting base through a multi-degree-of-freedom adjustment unit, enabling the lining segment suction cup to be adjusted with multiple degrees of freedom relative to the mounting base. The structure of the lining segment suction cup matches the structure of the lining segment.

[0009] The lifting mechanism includes a second lifting oil cylinder and a load-bearing frame. The load-bearing frame is installed at the rear end of the vehicle frame through the second lifting oil cylinder, enabling the load-bearing frame to move relative to the vehicle frame in the vertical direction.

[0010] The longitudinal moving and transporting mechanism includes a first longitudinal moving track, a longitudinal moving base frame, a transverse moving frame, a second longitudinal moving track, and a load-bearing slider. The first longitudinal moving track is fixedly connected to the vehicle frame between the circumferential assembly mechanism and the lifting mechanism. The longitudinal moving base frame is installed on the first longitudinal moving track and moves longitudinally along the first longitudinal moving track. The load-bearing slider is installed on the second longitudinal moving track and moves along the second longitudinal moving track. The transverse moving frame is connected above the longitudinal moving base frame through a third transverse moving oil cylinder. The telescopic movement of the third transverse moving oil cylinder drives the transverse moving frame to move transversely. The second longitudinal moving track is installed above the transverse moving frame through a third lifting oil cylinder. The telescopic movement of the third lifting oil cylinder drives the second longitudinal moving track to move in the vertical direction.

[0011] The pressing mechanism is symmetrically installed on both sides of the vehicle frame near the circumferential assembly mechanism and presses the side lining segments just installed on both sides of the circumferential assembly mechanism from the rear.

[0012] The pressing mechanism includes a pressing frame and longitudinal pressing oil cylinders. There are more than two longitudinal pressing oil cylinders distributed along an arc on the pressing frame, and the shape of this arc matches the shape of the lining segment. The rear ends of the longitudinal pressing oil cylinders are fixedly connected to the pressing frame. The pressing frame is fixedly connected to the vehicle frame, making the direction of the longitudinal pressing oil cylinders along the tunnel direction, and making the distance between the front end of the longitudinal pressing oil cylinder and the rear side of the just-installed side lining segment less than the elongation range of the longitudinal pressing oil cylinder. Moreover, the distance between the center points of the longitudinal pressing oil cylinders on both sides on the same horizontal line matches the distance between the center points of the lining segments on both sides of the tunnel on this horizontal line.

[0013] The multi-degree-of-freedom adjustment unit includes a first jacking adjustment oil cylinder, a second jacking adjustment oil cylinder, and a first longitudinal adjustment oil cylinder. The first jacking adjustment oil cylinder, the second jacking adjustment oil cylinder, and the first longitudinal adjustment oil cylinder are distributively connected between the mounting base and the lining segment suction cup. The rotation, up-and-down, left-and-right, and other multi-degree-of-freedom adjustments of the lining segment suction cup are controlled by the telescopic adjustments of the first jacking adjustment oil cylinder, the second jacking adjustment oil cylinder, and the first longitudinal adjustment oil cylinder. The lining segment suction cup is a vacuum suction cup.

[0014] The circumferential trolley runs along the circumferential track driven by a sprocket. The circumferential track is composed of two arc-shaped track beams. The bottom of the circumferential trolley is connected with a running wheel set, a back pressure wheel set, and a guiding wheel set. Four groups of running wheel sets, back pressure wheel sets, and guiding wheel sets are provided. Among them, the running wheel set straddles on the track beam, the back pressure wheel set is buckled on the inner side of the track beam, and the guiding wheel set is in contact with the side surface of the track beam.

[0015] Two wedge-shaped load-bearing beams are symmetrically arranged on the load-bearing frame of the jacking mechanism. When the lining segment is placed on the load-bearing beam, the lining segment fits with the load-bearing beam.

[0016] Supporting oil cylinders are fixedly arranged at the front end and the rear end of the vehicle frame in the vertical direction. When the second longitudinal moving track moves to the front end or the rear end of the vehicle frame along with the longitudinal moving base frame, the supporting oil cylinders support between the second longitudinal moving track and the vehicle frame.

[0017] Two second longitudinal moving tracks are symmetrically arranged and are connected as a whole through a track connecting beam. The track connecting beam is connected above the transverse moving frame through a third jacking oil cylinder, so that the second longitudinal moving track is connected above the transverse moving frame;

[0018] Two corresponding load-bearing sliders are provided. The load-bearing sliders are wedge-shaped. When carrying the lining segment, the lining segment fits with the load-bearing sliders.

[0019] Two first longitudinal moving tracks are provided. A wheel set is arranged at the bottom of the longitudinal moving base frame. The wheel set of the longitudinal moving base frame straddles on the first longitudinal moving track and runs driven by a sprocket.

[0020] The traveling mechanism is a wheel-rail type traveling structure, including 2 groups of active traveling wheel sets and 2 groups of driven traveling wheel sets installed at the bottom of the vehicle frame and a traveling track installed on the ground in the tunnel.

[0021] The vehicle frame is a gantry frame structure, including columns, cross beams, and longitudinal beams.

[0022] Compared with the prior art, the assembling trolley provided by the present invention has the following advantages: 1. The assembling trolley provided by the present invention transports the lining segments through the jacking mechanism and the longitudinal transportation mechanism. At the same time, the longitudinal transportation mechanism also assembles the arch lining segments, and assembles the side lining segments on both sides through the circumferential assembling mechanism and the pressing mechanism, realizing the block-by-block assembling of the tunnel lining.

[0023] 2. During the assembly of the previous lining segment in the present invention, the transportation of the next lining segment can be carried out simultaneously, saving installation time and having high installation efficiency.

[0024] 3. The longitudinal transportation mechanism in the present invention includes two - stage longitudinal movement. At the same time, the longitudinal transportation mechanism can also be adjusted horizontally and vertically, realizing the transfer and handover of lining segments in a narrow space and the precise alignment of the arch - part lining segments.

[0025] 4. In the present invention, the circumferential assembly mechanism stably adsorbs the side lining segments above the circumferential assembly mechanism through lining - segment suction cups, transports the side lining segments to the two - side assembly positions through circumferential tracks. At the same time, the lining - segment suction cups can also be adjusted with multiple degrees of freedom to ensure the precise alignment and assembly of the side lining segments.

[0026] 5. At the front and rear ends of the vehicle frame in the present invention, support oil cylinders are connected. When the longitudinal transportation mechanism moves to the front and rear of the vehicle frame, it supports the second longitudinal movement track of the longitudinal transportation mechanism to ensure the stability of the transportation and installation of lining segments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the structural schematic diagram of the tunnel lining - segment assembling trolley provided by the present invention Figure 1 ;

[0028] Figure 2 is the structural schematic diagram of the tunnel lining - segment assembling trolley provided by the present invention Figure 2 ;

[0029] Figure 3 is the structural schematic diagram of the vehicle frame in the present invention;

[0030] Figure 4 is the structural schematic diagram of the circumferential assembly mechanism in the present invention;

[0031] Figure 5 is the partial schematic diagram of the circumferential assembly mechanism installed on the vehicle frame in the present invention;

[0032] Figure 6 is the structural schematic diagram of the circumferential trolley of the circumferential assembly mechanism in the present invention;

[0033] Figure 7 is the connection schematic diagram of the circumferential trolley and the circumferential track of the circumferential assembly mechanism in the present invention;

[0034] Figure 8 is the structural schematic diagram of the longitudinal movement frame of the circumferential assembly mechanism in the present invention;

[0035] Figure 9 is the connection schematic diagram of the installation base and the longitudinal movement frame of the circumferential assembly mechanism in the present invention;

[0036] Figure 10 Schematic connection diagram of the installation base of the circumferential assembly mechanism and the lining sheet suction cup in the present invention;

[0037] Figure 11 Schematic installation diagram of the jacking mechanism on the vehicle frame in the present invention;

[0038] Figure 12 Schematic structural diagram of the longitudinal movement and transportation mechanism in the present invention;

[0039] Figure 13 Schematic structural diagram of the longitudinal movement chassis of the longitudinal movement and transportation mechanism in the present invention;

[0040] Figure 14 Schematic structural diagram of the transverse movement frame of the longitudinal movement and transportation mechanism in the present invention;

[0041] Figure 15 Connection structure diagram of the track connection beam and the second longitudinal movement track of the longitudinal movement and transportation mechanism in the present invention;

[0042] Figure 16 Schematic installation diagram of the pressing mechanism in the present invention;

[0043] Figure 17 Construction schematic of the assembly trolley provided by the present invention Figure 1 ;

[0044] Figure 18 Construction schematic of the assembly trolley provided by the present invention Figure 2 ;

[0045] Figure 19 Construction schematic of the assembly trolley provided by the present invention Figure 3 ;

[0046] Figure 20 Construction schematic of the assembly trolley provided by the present invention Figure 4 ;

[0047] Figure 21 Construction schematic of the assembly trolley provided by the present invention Figure 5 ;

[0048] Figure 22 Construction schematic of the assembly trolley provided by the present invention Figure 6 ;

[0049] Figure 23 Construction schematic of the assembly trolley provided by the present invention Figure 7 ;

[0050] Figure 24 Construction schematic of the assembly trolley provided by the present invention Figure 8 ;

[0051] Figure 25 Construction schematic diagram of the assembled trolley provided by the present invention Figure 9 ;

[0052] Figure 26 Construction schematic diagram of the assembled trolley provided by the present invention Figure 10 ;

[0053] Figure 27 Construction schematic diagram of the assembled trolley provided by the present invention Figure 10 One;

[0054] Figure 28 Construction schematic diagram of the assembled trolley provided by the present invention Figure 10 Two;

[0055] Figure 29 Construction schematic diagram of the assembled trolley provided by the present invention Figure 10 Three;

[0056] Figure 30 Construction schematic diagram of the assembled trolley provided by the present invention Figure 10 Four;

[0057] In the figure: 100 - arch lining piece, 200 - side lining piece;

[0058] 1 - vehicle frame, 2 - traveling mechanism, 21 - traveling track;

[0059] 3 - circumferential assembly mechanism, 31 - circumferential track, 311 - arc track, 312 - arc groove, 32 - circumferential trolley, 321 - running wheel set, 322 - counterweight wheel set, 323 - guide wheel set, 324 - first guide hole, 325 - first cylinder mounting hole, 33 - longitudinal moving frame, 331 - first guide column, 332 - guide rail, 34 - mounting base, 341 - guide rail mounting hole, 35 - lining piece suction cup, 36 - first lifting oil cylinder, 37 - first longitudinal moving oil cylinder, 38 - multi - degree - of - freedom adjustment unit, 381 - first lifting adjustment oil cylinder, 382 - second lifting adjustment oil cylinder, 383 - first longitudinal adjustment oil cylinder;

[0060] 4 - lifting mechanism, 41 - second lifting oil cylinder, 42 - load - bearing frame, 421 - second guide column, 43 - connecting beam, 431 - second guide hole, 44 - load - bearing beam;

[0061] 5 - longitudinal moving and transporting mechanism, 51 - first longitudinal moving track, 52 - longitudinal moving underframe, 521 - wheel set, 522 - second cylinder mounting hole, 53 - transverse moving frame, 531 - third guide hole, 532 - third cylinder mounting hole, 54 - track connecting beam, 541 - third guide column, 55 - second longitudinal moving track, 56 - load - bearing slider, 57 - third transverse moving oil cylinder, 58 - third lifting oil cylinder;

[0062] 6 - Compression mechanism, 61 - Compression frame, 62 - Longitudinal compression oil cylinder;

[0063] 7 - Support oil cylinder, 8 - Transport vehicle, 9 - Hoisting gantry. Detailed implementation mode

[0064] The present invention will be described in detail below with reference to the accompanying drawings.

[0065] In this embodiment, the segment erection trolley assembles each ring of lining segments into 2 side lining segments 200 and 1 arch top lining segment 100.

[0066] The overall structural schematic diagram of the tunnel lining segment erection trolley is as shown in Figure 1 and Figure 2 and includes a vehicle frame 1, a traveling mechanism 2 connected to the bottom of the vehicle frame, and a circumferential erection mechanism 3, a longitudinal movement and transportation mechanism 5, a jacking mechanism 4, a compression mechanism 6, and an electric - hydraulic unit (not shown in the figure) installed on the vehicle frame.

[0067] The vehicle frame is a gantry frame structure, including columns, cross - beams and longitudinal beams. The vehicle frame is the main load - bearing component of the whole machine. Among them, the circumferential track 31 of the circumferential erection mechanism, the connecting beam 43 of the jacking mechanism, the first longitudinal movement track 51 of the longitudinal movement and transportation mechanism, and the compression frame 61 of the compression mechanism are all fixed on the vehicle frame, as shown in Figure 3 .

[0068] The traveling mechanism is a wheel - rail traveling structure, including 2 groups of driving traveling wheel sets and 2 groups of driven traveling wheel sets installed at the bottom of the vehicle frame and a traveling track 21 installed on the ground in the tunnel, as shown in Figure 1 and Figure 2 .

[0069] The circumferential erection mechanism includes a circumferential track 31, a circumferential trolley 32, a longitudinal movement frame 33, a mounting base 34, and a lining segment suction cup 35, as shown in Figure 4 . Among them, the circumferential track is fixedly connected to the front end of the vehicle frame along the transverse direction. The circumferential trolley is installed on the circumferential track and moves along the circumferential track, as shown in Figure 2 and Figure 5 . In this embodiment, the circumferential trolley is driven by a sprocket (not shown in the figure) to run along the circumferential track. The sprocket drive is relatively common and will not be elaborated here. The circumferential track is composed of two arc - shaped track beams. The top of the track beam is provided with an arc - shaped rail 311, and the side of the track beam is provided with an inward - concave arc - shaped groove 312. The bottom of the circumferential trolley is connected with a running wheel set 321, a back - pressure wheel set 322, and a guiding wheel set 323. Four groups of running wheel sets, back - pressure wheel sets, and guiding wheel sets are all provided, as shown in Figure 6 . Among them, the running wheel set straddles the arc - shaped rail of the track beam, the back - pressure wheel set is buckled in the arc - shaped groove of the track beam, and the guiding wheel set is in contact with the side of the track beam, as shown in Figure 7 .

[0070] The longitudinal moving frame is connected above the circumferential trolley through the first jacking oil cylinder 36. Specifically, the circumferential trolley is provided with a first guiding hole 324 and a first cylinder body mounting hole 325, as shown in Figure 6 . The bottom of the longitudinal moving frame is connected with a first guiding column 331. As shown in Figure 8 , the first guiding column is installed in the first guiding hole, the cylinder body of the first jacking oil cylinder is fixed on the first cylinder body mounting hole, and the piston rod of the first jacking oil cylinder is fixedly connected with the longitudinal moving frame, as shown in Figure 4 . The telescopic movement of the first jacking oil cylinder drives the longitudinal moving frame to move in the vertical direction, and at the same time drives the mounting base and the lining segment suction cup above the longitudinal moving frame to move in the vertical direction, and the movement is limited by the first guiding hole. The mounting base is connected above the longitudinal moving frame through the first longitudinal moving oil cylinder 37. Specifically, a guide rail 332 is longitudinally connected on the longitudinal moving frame, and a guide rail mounting hole 341 is provided on the mounting base. The guide rail is connected with the guide rail mounting hole. The cylinder body of the first longitudinal moving oil cylinder is fixed on the longitudinal moving frame, and the piston rod of the first longitudinal moving oil cylinder is fixedly connected with the mounting base. As shown in Figure 9 , the telescopic movement of the first longitudinal moving oil cylinder drives the mounting base to move longitudinally, and at the same time drives the lining segment suction cup above the mounting base to move longitudinally.

[0071] The lining segment suction cup is connected above the mounting base through a multi-degree-of-freedom adjustment unit 38. Specifically, the multi-degree-of-freedom adjustment unit includes a first jacking adjustment oil cylinder 381, a second jacking adjustment oil cylinder 382 and a first longitudinal adjustment oil cylinder 383. The first jacking adjustment oil cylinder, the second jacking adjustment oil cylinder and the first longitudinal adjustment oil cylinder are distributively connected between the mounting base and the lining segment suction cup. As shown in Figure 10 , through the telescopic adjustment of the first jacking adjustment oil cylinder, the second jacking adjustment oil cylinder and the first longitudinal adjustment oil cylinder, the rotation, up and down, left and right and other multi-degree-of-freedom adjustments of the lining segment suction cup are controlled, so as to finely adjust the position of the lining segment placed thereon, and realize the precise assembly and positioning of the lining segment. The structure of the lining segment suction cup matches the structure of the lining segment. Specifically, the lining segment suction cup is a vacuum suction cup for fixing the lining segment.

[0072] The jacking mechanism includes a second jacking oil cylinder 41 and a load-bearing frame 42. The load-bearing frame is installed at the rear end of the vehicle frame through the second jacking oil cylinder. Specifically, a connecting beam 43 is fixed at the rear end of the vehicle frame, a second guiding hole 431 is provided on the connecting beam, a second guiding column 421 is connected to the bottom of the load-bearing frame, the second guiding column is installed in the second guiding hole, the cylinder body of the second jacking oil cylinder is fixedly connected with the connecting beam, and the piston rod of the second jacking oil cylinder is fixedly connected with the load-bearing frame. As shown in Figure 11As shown in the figure, the telescopic movement of the second lifting oil cylinder drives the load-bearing frame to move in the vertical direction. In this embodiment, two wedge-shaped load-bearing beams 44 are symmetrically arranged on the load-bearing frame to ensure that when the lining segment is placed on the load-bearing beam, the lining segment fits with the load-bearing beam, ensuring the stability of the lifting mechanism when transporting the lining segment.

[0073] The longitudinal movement and transportation mechanism includes a first longitudinal movement track 51, a longitudinal movement underframe 52, a transverse movement frame 53, a track connection beam 54, a second longitudinal movement track 55, and a load-bearing slider 56, as Figure 12 shown. Among them, the first longitudinal movement track is fixedly connected to the vehicle frame between the circumferential assembly mechanism and the lifting mechanism, and the longitudinal movement underframe is installed on the first longitudinal movement track and moves longitudinally along the first longitudinal movement track, as shown in Figure 1 . Specifically, two first longitudinal movement tracks are provided, and a wheel set 521 is arranged at the bottom of the longitudinal movement underframe. As Figure 13 shown, the wheel set of the longitudinal movement underframe straddles the first longitudinal movement track and travels through sprocket drive. The transverse movement frame is connected above the longitudinal movement underframe through a third transverse movement oil cylinder 57. Specifically, a second cylinder mounting hole 522 is provided on the longitudinal movement underframe, as shown in Figure 13 . The cylinder body of the third transverse movement oil cylinder is fixed in the second cylinder mounting hole, and the piston rod of the third transverse movement oil cylinder is fixedly connected to the transverse movement frame. The telescopic movement of the third transverse movement oil cylinder drives the transverse movement frame to move horizontally.

[0074] In this embodiment, two second longitudinal movement tracks are also symmetrically arranged and are connected into an integral body through a track connection beam. The track connection beam is connected above the transverse movement frame through a third lifting oil cylinder 58, so that the second longitudinal movement track is connected above the transverse movement frame. Specifically, a third guiding hole 531 and a third cylinder mounting hole 532 are provided on the transverse movement frame, as Figure 14 shown. A third guiding column 541 is connected to the bottom of the track connection beam. As Figure 15 shown, the third guiding column is installed in the third guiding hole, the cylinder body of the third lifting oil cylinder is fixed in the third cylinder mounting hole, and the piston rod of the third lifting oil cylinder is fixedly connected to the track connection beam. The telescopic movement of the third lifting oil cylinder drives the track connection beam and the second longitudinal movement track as a whole to move in the vertical direction. The load-bearing slider is installed on the second longitudinal movement track and moves along the second longitudinal movement track. Specifically, the load-bearing slider travels through gear and rack drive. Two load-bearing sliders are correspondingly provided, and the load-bearing sliders are wedge-shaped. When carrying the lining segment, the lining segment fits with the load-bearing sliders, ensuring the stable transportation of the lining segment during transportation.

[0075] The pressing mechanism is symmetrically installed on both sides of the vehicle frame close to the circumferential assembly mechanism, as shown in Figure 2 , and presses the side lining segments just installed on both sides of the circumferential assembly mechanism from the rear, as shown in Figure 16 and Figure 26。The pressing mechanism includes a pressing frame 61 and longitudinal pressing cylinders 62. There are more than two longitudinal pressing cylinders distributed along an arc on the pressing frame, and the shape of this arc matches the shape of the lining segment. In this embodiment, there are three longitudinal pressing cylinders distributed on each side of the pressing frame. One end of each longitudinal pressing cylinder is fixedly connected to the pressing frame. To facilitate the installation of the longitudinal pressing cylinders, the outer side of the pressing frame is an arc shape that matches the shape of the lining segment. The pressing frame is fixedly connected to the vehicle frame, so that the direction of the longitudinal pressing cylinders is along the tunnel direction, and the distance between the front end of the longitudinal pressing cylinder and the rear side of the just-installed side lining segment is less than the elongation range of the longitudinal pressing cylinder, ensuring that the longitudinal pressing cylinder can extend to press the side lining segment installed by the circumferential assembly mechanism, as Figure 16 shown. And the distance between the center points of the two longitudinal pressing cylinders on the same horizontal line matches the distance between the center points of the lining segments on both sides of the tunnel on this horizontal line, ensuring that the longitudinal pressing cylinder can be placed at the center of the rear side of the side lining segment, and ensuring that the side lining segment will not shift during later pressing.

[0076] Support cylinders 7 are fixedly installed at the front end and the rear end of the vehicle frame in the vertical direction, as shown in Figure 1 and Figure 2 . When the second longitudinal moving track moves to the front end or the rear end of the vehicle frame along with the longitudinal moving chassis, the support cylinder supports between the second longitudinal moving track and the vehicle frame, so as to ensure that when the load-bearing slider moves to the rear end or the front end of the second longitudinal moving track to carry the lining segment, the second longitudinal moving track can be supported between the support cylinder and the longitudinal moving chassis, as shown in Figure 19 and Figure 21 shown.

[0077] When the tunnel lining segment assembling trolley provided in this embodiment is used for tunnel lining installation, each ring of tunnel lining segments is assembled into 3 segments, including 1 arch lining segment 100 and 2 side lining segments 200. After the assembling trolley takes its position in the tunnel, first assemble 2 side lining segments, and then assemble the arch lining segment. The specific steps are as follows:

[0078] S1. Carry and hoist 1 side lining segment onto the lifting mechanism of the assembling trolley, as shown in Figure 17 , specifically, onto the two load-bearing beams of the lifting mechanism;

[0079] Both the side lining segment and the arch lining segment are carried by the transport vehicle 8 into the tunnel and hoisted onto the assembling trolley by the lifting gantry crane 9. After the lifting gantry crane completes the hoisting, it retreats to the transport vehicle to prepare for the next hoisting. When the transport vehicle carries the lining segment, it can transport 3 lining segments of one ring into the tunnel at the same time, saving transportation time and labor, or it can also carry the side lining segment and the arch lining segment separately. In this embodiment, 2 side lining segments or 1 arch lining segment are carried at a time.

[0080] S2. The jacking mechanism jacks up the side lining segment, as Figure 18 shown. Specifically, the second jacking oil cylinder jacks up the bearing frame and the bearing beam, thereby jacking up the side lining segment;

[0081] Meanwhile, the load-bearing slider of the longitudinal movement and transportation mechanism of the erection trolley moves to the position directly below the jacking mechanism. The specific steps are as follows:

[0082] S21. The longitudinal movement chassis of the longitudinal movement and transportation mechanism moves to the rear of the vehicle frame near the jacking mechanism, and the second longitudinal movement track of the longitudinal movement and transportation mechanism is located above the support oil cylinder at the rear end of the vehicle frame;

[0083] S22. The support oil cylinder jacks up until it contacts the second longitudinal movement track to support the second longitudinal movement track. This can ensure that when the load-bearing slider moves to the rear end of the second longitudinal movement track to carry the lining segment, the second longitudinal movement track is supported between the support oil cylinder and the longitudinal movement chassis.

[0084] S23. Then move the load-bearing slider to the position directly below the jacking mechanism.

[0085] S3. The jacking mechanism descends to place the side lining segment on the load-bearing slider of the longitudinal movement and transportation mechanism, as Figure 19 shown.

[0086] S4. The side lining segment moves and jacks up synchronously with the load-bearing slider to make the side lining segment located directly above the circumferential erection mechanism of the erection trolley. The specific steps are as follows:

[0087] S41. The side lining segment moves with the load-bearing slider to above the longitudinal movement chassis, as Figure 20 shown, and the support oil cylinder descends;

[0088] If the longitudinal movement chassis is directly moved, once the second longitudinal movement track leaves the support of the support oil cylinder, the weight of the side lining segment causes uneven force on the second longitudinal movement track, resulting in construction accidents

[0089] S42. The longitudinal movement chassis drives the load-bearing slider and the side lining segment to move to the front of the vehicle frame near the circumferential erection mechanism, and the second longitudinal movement track of the longitudinal movement and transportation mechanism is located above the support oil cylinder at the front end of the vehicle frame. The support oil cylinder and the longitudinal movement and transportation mechanism both jack up the second longitudinal movement track to support the second longitudinal movement track and make the second longitudinal movement track located above the circumferential erection mechanism, as Figure 21 shown;

[0090] S43. The side lining segment moves with the load-bearing slider on the second longitudinal movement track to directly above the lining segment suction cup of the circumferential erection mechanism, as Figure 22 shown.

[0091] S5. Jack up the lining segment suction cup of the circumferential erection mechanism to connect the lining segment suction cup with the side lining segment;

[0092] S6. The longitudinal transfer mechanism moves to the rear of the vehicle frame near the jacking mechanism and descends, as Figure 23 shown. At the same time, the circumferential assembly mechanism drives the side lining segment to move to the side assembly position, as Figure 24 shown;

[0093] S7. Jack, longitudinally transfer and adjust the lining segment suction cup so that the side lining segment is accurately positioned, as Figure 25 shown. The pressing mechanism of the assembly trolley jacks and presses the side lining segment from the rear, facilitating the assembly of the side lining segment with the already installed side lining segment, completing the assembly of 1 side lining segment, and the circumferential assembly mechanism returns to the top position;

[0094] S8. Complete the assembly of another side lining segment according to the above steps S1 - S7, as Figure 26 shown; Specifically, in order to save assembly time, when performing steps S4 - S6 for the assembly of 1 lining segment, steps S1 - S3 for another lining segment are carried out simultaneously, as Figure 20 、 Figures 22 to 24 shown.

[0095] S9. Place the arch lining segment on the longitudinal transfer mechanism according to the above steps S1 - S3. Similarly, this step can be carried out simultaneously when performing steps S4 - S6 for the assembly of the 2nd lining segment, see Figure 26 .

[0096] The arch lining segment moves and jacks synchronously with the load-bearing slider, moving the arch lining segment to the arch assembly position for alignment, completing the assembly of 1 ring of tunnel lining segments. Specifically:

[0097] S91. The arch lining segment moves with the load-bearing slider to above the longitudinal transfer chassis, and the support oil cylinder descends;

[0098] S92. The longitudinal transfer chassis drives the load-bearing slider and the arch lining segment to move to the front of the vehicle frame near the circumferential assembly mechanism, and makes the second longitudinal transfer track of the longitudinal transfer mechanism located above the support oil cylinder at the front end of the vehicle frame, as Figure 27 shown. The support oil cylinder and the longitudinal transfer mechanism both jack the second longitudinal transfer track to support the second longitudinal transfer track, as Figure 28 shown;

[0099] S93. The arch lining segment moves with the load-bearing slider on the second longitudinal transfer track to the arch assembly position, and the longitudinal transfer mechanism makes longitudinal and jacking adjustments to the arch lining segment to accurately position the arch lining segment, completing the assembly of the arch lining segment, as Figure 29 shown.

[0100] When placing the side lining segment or the arch lining segment on the longitudinal transfer mechanism from the lifting mechanism, placing it on the arch lifting mechanism from the longitudinal transfer mechanism, and directly installing the arch lining segment on the longitudinal transfer mechanism, the longitudinal transfer mechanism can not only make adjustments in the longitudinal and vertical directions (lifting and lowering), but also make lateral adjustments through the transverse frame and the third transverse oil cylinder.

[0101] S10. The longitudinal transfer mechanism descends and moves to a position near the lifting mechanism behind the vehicle frame. After the assembly trolley moves backward, the assembly of the next ring of tunnel lining segments is carried out. As Figure 30 shown, the process is cycled in sequence. After the assembly of 6 rings of tunnel lining segments is completed, grouting and backfilling are carried out once.

Claims

1. A tunnel lining segment assembling trolley, comprising at least a frame, a traveling mechanism connected to the bottom of the frame, and an electric-hydraulic unit, characterized in that: An annular assembling mechanism, a longitudinal moving and transporting mechanism, a jacking mechanism and a pressing mechanism are installed on the vehicle frame; The annular assembling mechanism includes an annular track, an annular trolley, a longitudinal moving frame, a mounting base and a lining segment suction cup. The annular track is fixedly connected to the front end of the vehicle frame along the transverse direction. The annular trolley is installed on the annular track and moves along the annular track. The longitudinal moving frame is connected above the annular trolley through a first jacking oil cylinder. The telescopic movement of the first jacking oil cylinder drives the longitudinal moving frame to move in the vertical direction. The mounting base is connected above the longitudinal moving frame through a first longitudinal moving oil cylinder. The telescopic movement of the first longitudinal moving oil cylinder drives the mounting base to move longitudinally. The lining segment suction cup is connected above the mounting base through a multi-degree-of-freedom adjustment unit, so that the lining segment suction cup can be adjusted with multiple degrees of freedom relative to the mounting base. The structure of the lining segment suction cup matches the structure of the lining segment; The jacking mechanism includes a second jacking oil cylinder and a load-bearing frame. The load-bearing frame is installed at the rear end of the vehicle frame through the second jacking oil cylinder, so that the load-bearing frame can move relative to the vehicle frame in the vertical direction; The longitudinal moving and transporting mechanism includes a first longitudinal moving track, a longitudinal moving bottom frame, a transverse moving frame, a second longitudinal moving track and a load-bearing slider. The first longitudinal moving track is fixedly connected to the vehicle frame between the annular assembling mechanism and the jacking mechanism. The longitudinal moving bottom frame is installed on the first longitudinal moving track and moves longitudinally along the first longitudinal moving track. The load-bearing slider is installed on the second longitudinal moving track and moves along the second longitudinal moving track. The transverse moving frame is connected above the longitudinal moving bottom frame through a third transverse moving oil cylinder. The telescopic movement of the third transverse moving oil cylinder drives the transverse moving frame to move transversely. The second longitudinal moving track is installed above the transverse moving frame through a third jacking oil cylinder. The telescopic movement of the third jacking oil cylinder drives the second longitudinal moving track to move in the vertical direction; The pressing mechanism is symmetrically installed on both sides of the vehicle frame close to the annular assembling mechanism and presses the side lining segments just installed on both sides of the annular assembling mechanism from the rear. The pressing mechanism includes a pressing frame and longitudinal pressing oil cylinders. Two or more longitudinal pressing oil cylinders are distributed along an arc on the pressing frame, and the arc shape matches the shape of the lining segment. The rear ends of the longitudinal pressing oil cylinders are fixedly connected to the pressing frame, and the pressing frame is fixedly connected to the vehicle frame, so that the direction of the longitudinal pressing oil cylinders is along the tunnel direction, and the distance between the front end of the longitudinal pressing oil cylinder and the rear side of the just-installed side lining segment is less than the elongation range of the longitudinal pressing oil cylinder, and the distance between the center points of the longitudinal pressing oil cylinders on both sides on the same horizontal line matches the distance between the center points of the lining segments on both sides of the tunnel on the same horizontal line.

2. The segment erection jumbo for tunnel lining according to claim 1, wherein: The multi-degree-of-freedom adjustment unit includes a first jacking adjustment oil cylinder, a second jacking adjustment oil cylinder and a first longitudinal adjustment oil cylinder. The first jacking adjustment oil cylinder, the second jacking adjustment oil cylinder and the first longitudinal adjustment oil cylinder are distributed and connected between the mounting base and the lining segment suction cup. The rotation, up and down, left and right and other multi-degree-of-freedom adjustments of the lining segment suction cup are controlled by the telescopic adjustments of the first jacking adjustment oil cylinder, the second jacking adjustment oil cylinder and the first longitudinal adjustment oil cylinder. The lining segment suction cup is a vacuum suction cup.

3. The segment erection jumbo for tunnel lining according to claim 1, characterized in that: The circumferential trolley runs along the circumferential track driven by a sprocket. The circumferential track consists of two arc-shaped track beams. The bottom of the circumferential trolley is connected with a running wheel set, a back pressure wheel set and a guiding wheel set. Four sets of running wheel sets, back pressure wheel sets and guiding wheel sets are provided. Among them, the running wheel set straddles the track beam, the back pressure wheel set is buckled on the inner side of the track beam, and the guiding wheel set is in contact with the side surface of the track beam.

4. The segment erection jumbo for tunnel lining according to claim 1, wherein: Two wedge-shaped load-bearing beams are symmetrically arranged on the load-bearing frame of the jacking mechanism. When the lining segment is placed on the load-bearing beam, the lining segment fits with the load-bearing beam.

5. The segment erection jumbo for tunnel lining according to claim 1, characterized in that: Supporting oil cylinders are fixedly arranged at the front end and the rear end of the vehicle frame in the vertical direction. When the second longitudinal moving track moves to the front end or the rear end of the vehicle frame along with the longitudinal moving chassis, the supporting oil cylinders support between the second longitudinal moving track and the vehicle frame.

6. The segment erection jumbo according to claim 1, characterized in that: Two second longitudinal moving tracks are symmetrically arranged and are connected into a whole through a track connecting beam. The track connecting beam is connected above the transverse moving frame through a third jacking oil cylinder, so that the second longitudinal moving track is connected above the transverse moving frame; Two corresponding load-bearing sliders are provided. The load-bearing sliders are wedge-shaped. When carrying the lining segment, the lining segment fits with the load-bearing sliders.

7. The segment erection trolley for tunnel lining according to claim 1, characterized in that: Two first longitudinal moving tracks are provided. A wheel set is arranged at the bottom of the longitudinal moving chassis. The wheel set of the longitudinal moving chassis straddles the first longitudinal moving track and runs driven by a sprocket.

8. The segment erection trolley for tunnel lining according to claim 1, characterized in that: The traveling mechanism is a wheel-rail type traveling structure, including 2 sets of active traveling wheel sets and 2 sets of driven traveling wheel sets installed at the bottom of the vehicle frame and a traveling track installed on the ground in the tunnel.

9. The segment erection jumbo according to claim 1, wherein: The vehicle frame is a gantry frame structure, including columns, cross beams and longitudinal beams.

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