Needle beam inverted arch trolley matched with TBM

Abstract

The utility model relates to a needle beam inverted arch trolley matched with a TBM (tunnel boring machine), which comprises a needle beam part, a beam frame part and a transverse plate part, and the beam frame part is a rectangular frame formed by connecting square tubes; after the needle beam part penetrates through the beam frame part, the needle beam part and the beam frame part are arranged in a sliding manner; the beam frame part is a rectangular frame formed by connecting square tubes; the transverse plate part is fixed to the bottom end of the beam frame part in a recoverable mode and extends in the length direction of the transverse plate part. The needle beam part comprises a needle beam, at least two needle beam bases and at least two needle beam transverse moving mechanisms, through the needle beam transverse moving mechanisms which extend in the transverse direction of the needle beam and are arranged on the needle beam bases in a sliding mode, position adjustment of the whole needle beam part in the transverse direction is extremely conveniently achieved, and then adjustment of the needle beam inverted arch trolley in different working procedure positions is achieved. And the construction efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering construction, in particular to a needle beam inverted arch trolley matched with a TBM. Background Art

[0002] Currently, the TBMs used in my country are primarily open-type. Typically, initial support and secondary concrete lining are required after tunnel excavation, resulting in a long total tunnel construction period. There are two common arrangements for the transition between TBM excavation and secondary concrete lining construction. The first involves completing the entire tunnel excavation before carrying out the secondary concrete lining. This not only results in a long construction period but also poses a high safety risk due to the long delay in lining construction after tunnel excavation. The second involves simultaneous lining construction using precast invert blocks, cast-in-place side walls, and top arch lining after tunnel excavation has reached a certain distance. However, some tunnels require full-section cast-in-place concrete structures, which do not allow for precast invert blocks.

[0003] To address the challenges of existing technologies, researchers have conducted extensive research and proposed various solutions. For example, the Chinese patent document titled "Method for Synchronous TBM Excavation and Secondary Lining Construction During Mucking with a Continuous Belt Conveyor and Trolley" (Application No. 200910228168.7) describes a method in which a precast invert provides the track foundation for the TBM transport vehicle, and cast-in-place low sidewalls serve as the secondary lining trolley track. Construction is organized by first installing the precast invert, followed by the sidewall and top arch lining.

[0004] The above solution solves the inconvenience problem between existing TBM excavation and concrete secondary lining construction to a certain extent. However, the solution still has the following problems: for tunnel projects with design requirements such as overflow and structural integrity, prefabricated invert blocks are not allowed to be laid at the bottom, and only cast-in-place concrete inverts can be used. The existing trolley occupies a large space at the bottom, making the construction of cast-in-place concrete inverts inconvenient and the construction efficiency low. In addition, the specifications of the needle beam inverts provided are single, and only uniform size specifications can be used for a single construction, which leads to many restrictions during transportation and construction.

[0005] In view of this, there is an urgent need for a needle beam inverted arch trolley to match the TBM. The beam-frame system can move along the needle beam, thereby driving the trolley support and the outer formwork to move. In this way, TBM excavation and concrete secondary lining can be carried out simultaneously, and the side walls and top arch can be carried out simultaneously with the excavation construction. When the excavation construction is completed, the inverted arch construction can be carried out in reverse. The beam-frame system can be lifted and changed, which extends the use scenario of the entire set of needle beam inverted arch trolleys and thus improves construction efficiency. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a needle beam inverted arch trolley for TBM to solve the problems raised in the above-mentioned background technology. The needle beam inverted arch trolley for TBM provided by the present invention has a simple structure and is easy to install. It can realize automatic distribution of concrete. On the basis of reducing the labor intensity of construction workers, it saves pouring time, improves work efficiency, reduces construction costs and safety risks, and improves pouring quality.

[0007] To achieve the above-mentioned purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0008] A needle beam inverted arch trolley for TBM, comprising a needle beam portion, a beam frame portion and a cross plate portion, wherein the beam frame portion is a rectangular frame formed by connecting square tubes; the needle beam portion passes through the beam frame portion and is slidably arranged with the beam frame portion; the beam frame portion is a rectangular frame formed by connecting square tubes; the cross plate portion is recyclably fixed to the bottom end of the beam frame portion and extends along the length direction of the cross plate portion; the needle beam portion comprises a needle beam, at least two sets of needle beam bases and at least two sets of needle beam transverse movement mechanisms, wherein the needle beam is a double-web box structure formed by welding a panel and a supporting rib. Structure; the needle beam base is arranged on the bottom surface of the two end sides of the needle beam, and is connected to the needle beam through a needle beam transverse movement mechanism; the needle beam transverse movement mechanism has one end that is slidable on the top surface of the fixed needle beam base, extending along the transverse direction of the needle beam, and the other end that is relatively arranged is fixed to the needle beam as a whole and moves together; through the needle beam transverse movement mechanism that extends along the transverse direction of the needle beam and is slidably arranged with the needle beam base, the position adjustment of the entire needle beam part in the transverse direction can be realized extremely conveniently, and then the needle beam arch trolley can be adjusted at different process positions, which greatly improves the construction efficiency.

[0009] Furthermore, the needle beam transverse movement mechanism includes a base, a translation seat and a first telescopic cylinder, wherein the base is fixed on the top end surface of the needle beam base and extends along the width direction of the needle beam; the translation seat is slidably fixed to the needle beam base through one end of the base, and the other end oppositely arranged is connected to the needle beam as a whole, and is arranged to move together; one end of the first telescopic cylinder is fixed on the base, and the other end oppositely arranged is fixed to the translation seat as a whole, and is arranged to move together.

[0010] Furthermore, it also includes a needle beam transverse movement mechanism and a needle beam lifting mechanism between the needle beam, one end of the needle beam lifting mechanism is fixed to the needle beam base through the needle beam transverse movement mechanism, and the other end is fixed to the needle beam as a whole and is retractable along the vertical direction.

[0011] Furthermore, the needle beam lifting mechanism includes a needle beam lifting sleeve, a needle beam guide rod and a needle beam lifting cylinder, wherein the bottom end of the needle beam guide rod is fixed on the top surface of the needle beam transverse movement mechanism, and the other end arranged oppositely extends upward along the vertical direction; the needle beam lifting sleeve is ring-mounted on the outer peripheral side of the needle beam guide rod, and is fixed as a whole with the needle beam and is arranged to move together; the needle beam lifting cylinder is embedded in the internal cavity of the needle beam guide rod, one end is fixed on the needle beam transverse movement mechanism, and the other end arranged oppositely is fixed to the needle beam telescopically.

[0012] Furthermore, the beam frame portion includes at least two groups of beam frames and at least one group of connecting frames, wherein the beam frames are a combination structure of trusses, the beam frames are arranged in parallel, fixed into one body by the connecting frames, and moved together; the two ends of the connecting frames are respectively detachably connected to the beam frames and extended along the width direction of the beam frame portion.

[0013] Furthermore, it also includes at least two groups of beam frame lifting mechanisms that are adjustable with the height position of the beam frame. The beam frame lifting mechanisms are arranged at both ends of the beam frame and extend along the height direction of the beam frame.

[0014] Furthermore, the beam frame lifting mechanism includes a beam frame lifting base, a beam frame guide rod and a beam frame lifting sleeve, wherein the beam frame guide rod is fixed on the top surface of the beam frame lifting base and extends along the height direction of the beam frame; the beam frame lifting sleeve is ring-mounted on the beam frame guide rod and is slidable relative to the beam frame guide rod, and the outer peripheral side of the beam frame lifting sleeve is fixed to the beam frame as a whole and is arranged to move together.

[0015] Furthermore, the transverse plate portion includes a bottom plate and at least two sets of transverse plate lifting mechanisms. The transverse plate is arranged at the bottom of the beam frame portion and is lifted and connected to the beam frame through the transverse plate lifting mechanism. The transverse plate lifting mechanisms are arranged at intervals along the length direction of the transverse plate, and one end of the transverse plate lifting mechanism is fixed to the transverse plate, and the other end arranged oppositely is retractably fixed to the beam frame.

[0016] Furthermore, the transverse plate includes a bottom plate and a reinforcing beam, and the bottom plate is welded by a panel and supporting ribs; the reinforcing beam is fixed on the top surface of the bottom plate close to the beam frame and extends along the length direction of the transverse plate.

[0017] Furthermore, it also includes a horizontal plate support and retraction mechanism fixed as a whole with the horizontal plate and arranged to move together, one end of the horizontal plate support and retraction mechanism is fixed on the horizontal plate, and the other end is arranged to be slidable with the beam frame.

[0018] The needle beam inverted arch trolley provided in the above embodiment and matched to the TBM has at least the following advantages compared to the prior art:

[0019] The needle beam portion provided in the preferred embodiment of the present invention is driven by the first telescopic cylinder, and the translation seat drives the needle beam to slide along the transverse direction of the needle beam, thereby realizing the position adjustment of the needle beam in its width direction; through the needle beam lifting cylinder telescopically arranged with the needle beam, the needle beam can be conveniently adjusted and controlled in the height direction as required, thereby realizing the position optimization and adjustment of the needle beam portion in the operation process, which has a wider range of application scenarios and significantly improves the construction efficiency;

[0020] The needle beam provided in the preferred embodiment of the present invention can realize automatic and intelligent control through the beam frame lifting cylinder embedded in the internal cavity of the beam frame guide rod, thereby improving the accuracy of height adjustment of the entire beam frame; the walking mechanism spaced along the trajectory of the needle beam part moving inside the beam frame part converts sliding friction into rolling friction, thereby reducing the resistance encountered by the needle beam part during the movement; the beam frame lifting sleeve ring-shaped on the beam frame guide rod can ensure that the beam frame lifting mechanism can be raised or lowered in a preset direction, and the beam frame sliding sleeve fixed to the beam frame as a whole drives the entire beam frame to achieve height adjustment;

[0021] The needle beam portion provided in the preferred embodiment of the present invention, through the reinforcing beam fixed on the base plate, not only improves the strength, but also provides a platform connected to the cross-plate lifting mechanism, which effectively solves the problem of concentrated force on the base plate during the lifting process, ensures the functionality of the base plate, and extends the working life; driven by the formwork telescopic cylinder, the formwork sleeve slides on the formwork guide rod, and then drives the screw rod to move along the width direction of the beam frame. Under the joint action of the cross-plate lifting mechanism, the cross plate is driven along the width direction of the beam frame, relative to the beam frame, to switch between the retractable and retractable states, thereby realizing the expansion and extension of the working space of the cross plate, making the use scenarios of the needle beam arch trolley more diverse, and can be applied to the construction of tunnels of different sizes and specifications, which significantly improves the overall construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of an embodiment of a needle beam inverted arch trolley equipped with a TBM;

[0023] Figure 2 A schematic diagram of the partial structure of another embodiment of a needle beam inverted arch trolley for use with a TBM;

[0024] Figure 3 A schematic diagram of the partial structure of another embodiment of a needle beam inverted arch trolley for use with a TBM;

[0025] Figure 4 This is a schematic diagram of the partial structure of another embodiment of a needle beam inverted arch trolley equipped with a TBM. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] It should be noted that if the embodiments of the present invention involve directional indications, such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly. In addition, if the embodiments of the present invention involve descriptions such as "first, second", "S1, S2", "step one, step two", etc., then such descriptions are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features or indicating the execution order of the method, etc. Those skilled in the art can understand that anything that does not violate the gist of the invention under the technical concept of the invention should be included in the scope of protection of the present invention.

[0028] like Figures 1 to 3 As shown, according to some exemplary embodiments, a needle beam arch trolley for TBM includes a needle beam part 10, a beam frame part 20 and a cross plate part 30, wherein the beam frame part 20 is a rectangular frame formed by connecting square tubes; after the needle beam part 10 passes through the beam frame part 20, it is slidably arranged with the beam frame part 20; the beam frame part 20 is a rectangular frame formed by connecting square tubes; the cross plate part 30 is recyclably fixed to the bottom end of the beam frame part 20, and is extended along the length direction of the cross plate part 30; the needle beam part 10 includes a needle beam 11, at least two sets of needle beam bases 12 and at least two sets of needle beam transverse movement mechanisms 14, wherein the needle beam 11 is a panel and support ribs A double-web box-type structure formed by welding; the needle beam base 12 is arranged on the bottom surface of the two end sides of the needle beam 11, and is connected to the needle beam 11 through a needle beam transverse movement mechanism 14; the needle beam transverse movement mechanism 14 has one end that is slidably fixed on the top surface of the needle beam base 12, extending along the transverse direction of the needle beam 11, and the other end that is relatively arranged is fixed to the needle beam 11 as a whole, and is arranged to move together; thus, through the needle beam transverse movement mechanism that extends along the transverse direction of the needle beam and is slidably arranged with the needle beam base, the position adjustment of the entire needle beam part in the transverse direction is extremely convenient, and then the adjustment of the needle beam arch trolley in different process positions is realized, which greatly improves the construction efficiency.

[0029] Furthermore, to enhance the stability of the needle beam inverted arch trolley after assembly at the tunnel construction site, the side surface of the needle beam base 12, distal to the extreme end of the needle beam 11, is designed as a circular arc. Tracks are provided on the top and bottom surfaces of the needle beam 11 in the height direction to reduce friction during sliding movement with the beam frame 20.

[0030] Specifically, in a preferred embodiment of the present invention, Figure 2 As shown, the needle beam transverse movement mechanism 14 includes a base 141, a translation seat 142, and a first telescopic cylinder 143. The base 141 is fixed to the top surface of the needle beam base and extends along the width direction of the needle beam 11. The translation seat 142 is slidably fixed to the needle beam base 12 at one end of the base 141, and its other end, which is oppositely disposed, is integrally connected to the needle beam 11 and moves together. The first telescopic cylinder 143 is fixed to the base 141 at one end, and its other end, which is oppositely disposed, is integrally fixed to the translation seat 142 and moves together. Thus, driven by the first telescopic cylinder 143, the translation seat 142 drives the needle beam 11 to slide along the transverse direction of the needle beam 11, thereby adjusting the position of the needle beam 11 in its width direction.

[0031] Optionally, to adjust the height of the needle beam 10, a needle beam lifting mechanism 13 is further included between the needle beam transverse movement mechanism 14 and the needle beam 11. One end of the needle beam lifting mechanism 13 is fixed to the needle beam base 12 via the needle beam transverse movement mechanism 14, and the other end, which is oppositely disposed, is fixed integrally to the needle beam 11 and is retractable in the vertical direction. Preferably, the needle beam lifting mechanism 13 is retractably fixed to the end side surface of the short side of the needle beam 11. Furthermore, the needle beam lifting mechanism 13 includes a needle beam lifting sleeve 131, a needle beam guide rod 132, and a needle beam lifting cylinder 133. The bottom end of the needle beam guide rod 132 is fixed to the top surface of the needle beam transverse movement mechanism 14, and the other end, which is arranged opposite, extends upward in the vertical direction. The needle beam lifting sleeve 131 is encircled around the outer periphery of the needle beam guide rod 132 and is fixed as a whole with the needle beam 11, moving together. The needle beam lifting cylinder 133 is embedded in the internal cavity of the needle beam guide rod 132, with one end fixed to the needle beam transverse movement mechanism 14 and the other end, which is arranged opposite, being retractably fixed to the needle beam 11. Thus, the needle beam can be conveniently adjusted and controlled in height as needed through the needle beam lifting cylinder, which is retractably arranged with the needle beam.

[0032] In summary, the needle beam portion provided in the preferred embodiment of the present invention, under the drive of the first telescopic cylinder, the translation seat drives the needle beam to slide along the transverse direction of the needle beam, thereby realizing the position adjustment of the needle beam in its width direction; through the needle beam lifting cylinder telescopically arranged with the needle beam, the needle beam can be conveniently adjusted and controlled in the height direction as needed, and then the position optimization and adjustment of the needle beam portion in the operation process can be realized, the applicable scenarios are wider, and the construction efficiency is significantly improved.

[0033] In the preferred embodiment of the present application, Figure 1 and Figure 3 As shown, the beam frame portion 20 includes at least two sets of beam frames 21 and at least one set of connecting frames 22. The beam frames 21 are a combination of trusses. The beam frames 21 are arranged in parallel and fixed together by the connecting frames 22, and are arranged to move together. The connecting frames 22 are detachably connected to the beam frames 21 at both ends and extend along the width direction of the beam frame portion 20. Preferably, in order to provide a larger construction space, the connecting frames 22 are fixed to the top surface of the beam frames 21 and extend upward in the vertical direction.

[0034] Optionally, the beam frame 21 includes at least two main beams 211 and at least two support beams 212, wherein the main beams 211 are arranged in parallel and spaced apart, and the support beams 212 are arranged between the main beams 211 and welded and fixed to form a truss structure as a whole, thereby having sufficient rigidity to load and withstand uncertain position loads.

[0035] Optionally, in order to ensure the passability of the entire needle beam inverted arch trolley and the flexibility of the height adjustment of the construction platform, at least two sets of beam frame lifting mechanisms 23 that are adjustable with the height position of the beam frame 21 are also included. The beam frame lifting mechanisms 23 are arranged at both ends of the beam frame 21 and extend along the height direction of the beam frame 21. Specifically, the beam frame lifting mechanism 23 includes a beam frame lifting base 231, a beam frame guide rod 232 and a beam frame lifting sleeve 233, wherein the beam frame guide rod 232 is fixed on the top surface of the beam frame lifting base 231 and extends along the height direction of the beam frame 21; the beam frame lifting sleeve 233 is ring-mounted on the beam frame guide rod 232 and is slidable relative to the beam frame guide rod 232. The outer peripheral side of the beam frame lifting sleeve 233 is fixed to the beam frame 21 as a whole and moves together. Therefore, by means of the beam frame lifting sleeve which is looped on the beam frame guide rod, it can be ensured that the beam frame lifting mechanism can be raised or lowered in a preset direction, and the beam frame sleeve which is fixed as a whole with the beam frame can drive the entire beam frame to realize position adjustment in the height direction.

[0036] Furthermore, in order to achieve automated and intelligent control and improve the accuracy of height adjustment of the entire beam frame, it also includes a beam frame lifting cylinder 234 embedded in the internal cavity of the beam frame guide rod 232. One end of the beam frame lifting cylinder 234 is fixed on the beam frame lifting base 231, and the other end is relatively set and is telescopically connected to the beam frame 21 through the beam frame lifting sleeve 233.

[0037] Optionally, to enhance the ease with which the needle beam 10 slides within the beam frame 20, at least one set of running mechanisms 24 is secured to the beam frame 21. The running mechanisms 24 are spaced apart along the trajectory of the needle beam 10 within the beam frame 20. Specifically, the running mechanisms 24 are secured to the beam frame 20 in pairs, positioned at corresponding positions at the top and bottom of the trajectory of the needle beam 10 within the beam frame 20. Furthermore, there are six sets of running mechanisms 24, with three sets each located at the top and bottom of the trajectory within the beam frame 20. Specifically, the travel mechanism 24 includes a fixed frame 241 and a pulley 242. The fixed frame 241 is fixed to the beam frame 21 and has a cavity with a side opening. The pulley 242 is rotatably disposed within the internal cavity of the fixed frame 241. Thus, when the needle beam 10 passes through the beam frame 20, the needle beam 10 contacts the beam frame 21 via the pulley 242, thereby converting sliding friction into rolling friction, thereby reducing the resistance encountered by the needle beam 10 during travel. Preferably, flanges are provided on both sides of the pulley 242 to prevent the needle beam 10 from running off the track during travel.

[0038] In summary, the needle beam portion provided in the preferred embodiment of the present invention can realize automatic and intelligent control through the beam frame lifting cylinder embedded in the internal cavity of the beam frame guide rod, thereby improving the accuracy of height position adjustment of the entire beam frame; the walking mechanism spaced along the trajectory of the needle beam portion moving inside the beam frame portion converts sliding friction into rolling friction, thereby reducing the resistance encountered by the needle beam portion during movement; the beam frame lifting sleeve ringed on the beam frame guide rod can ensure that the beam frame lifting mechanism can be raised or lowered in a preset direction, and the beam frame sleeve fixed as a whole with the beam frame can drive the entire beam frame to achieve position adjustment in the height direction.

[0039] The horizontal plate portion 30 can be of various suitable structures. In the preferred embodiment of the present application, Figure 1 and Figure 3 As shown, the transverse plate portion 30 includes a transverse plate 31 and at least two sets of transverse plate lifting mechanisms 32. The transverse plate 31 is arranged at the bottom of the beam frame portion 20 and is lifted and connected to the beam frame 21 through the transverse plate lifting mechanism 32. The transverse plate lifting mechanism 32 is arranged at intervals along the length direction of the transverse plate 31. One end of the transverse plate lifting mechanism 32 is fixed to the transverse plate 31, and the other end arranged oppositely is telescopically fixed to the beam frame 21.

[0040] Preferably, the cross plate 31 comprises a base plate 311 and a reinforcement beam 312. The base plate 311 is welded from a panel and supporting ribs. The reinforcement beam 312 is fixed to the top surface of the base plate 311 near the beam frame 20 and extends along the length of the cross plate 31. The reinforcement beam 312 fixed to the base plate 311 not only improves strength but also provides a platform for connection to the cross plate lifting mechanism 32. This effectively solves the problem of concentrated force on the base plate 311 during the lifting process, ensuring the functionality of the base plate 311 while also extending its service life.

[0041] The horizontal plate lifting mechanism 32 can be various appropriate mechanisms, as long as it is capable of lifting the horizontal plate 31. Preferably, the horizontal plate lifting mechanism 32 includes at least one second telescopic cylinder 321 and at least one third telescopic cylinder 322, wherein the second telescopic cylinder 321 and the third telescopic cylinder 322 are respectively arranged on both sides of the beam frame 21, and are telescopically connected to the beam frame 21 and the horizontal plate 31 respectively, and the second telescopic cylinder 321 and the third telescopic cylinder 322 are arranged at intervals along the length direction of the horizontal plate 31.

[0042] Optionally, in order to improve the utilization efficiency of the transverse board and expand the working space of the transverse board, it also includes a transverse board support and retraction mechanism 33 that is fixed as a whole with the transverse board 31 and is arranged to move together. One end of the transverse board support and retraction mechanism 33 is fixed on the transverse board 31, and the other end is arranged to be slidable with the beam frame 21. Specifically, the cross-plate support and retraction mechanism 33 includes a formwork guide rod 331, a formwork sleeve 332, a formwork telescopic cylinder 333 and a screw rod 334, wherein the formwork guide rod 331 is fixed on the side of the beam frame 21, and extends along the width of the beam frame 21 in the direction away from the beam frame 21; the formwork sleeve 332 is ring-circled on the formwork guide rod 331, and is slidably arranged with the formwork guide rod 331; one end of the formwork telescopic cylinder 333 is fixed on the beam frame 21, and the other end oppositely arranged is telescopically connected to the formwork sleeve 332; one end of the screw rod 334 is fixed on the cross-plate 31, and the other end oppositely arranged extends along the height direction of the beam frame 21, and is slidably connected to the formwork sleeve 332. Therefore, driven by the formwork telescopic cylinder 332, the formwork sleeve 332 slides on the formwork guide rod 331, and then drives the screw rod 334 to move along the width direction of the beam frame 21. Under the joint action of the cross-plate lifting mechanism 32, the cross-plate 31 is driven along the width direction of the beam frame 21, and switches between the telescopic and retractable states relative to the beam frame 21, thereby realizing the expansion and extension of the working space of the cross-plate 31, making the use scenarios of the needle beam arch trolley more diverse, and can be applied to the construction operations of tunnels of different sizes and specifications, significantly improving the overall construction efficiency.

[0043] In summary, the needle beam portion provided in the preferred embodiment of the present invention, through the reinforcing beam fixed on the base plate, not only improves the strength, but also provides a platform connected to the cross-plate lifting mechanism, which effectively solves the problem of concentrated force on the base plate during the lifting process, ensures the functionality of the base plate, and extends its working life; driven by the formwork telescopic cylinder, the formwork sleeve slides on the formwork guide rod, and then drives the screw rod to move along the width direction of the beam frame. Under the joint action of the cross-plate lifting mechanism, the cross plate is driven along the width direction of the beam frame, switching between the retractable and retractable states relative to the beam frame, thereby realizing the expansion and extension of the working space of the cross plate, making the use scenarios of the needle beam arch trolley more diverse, and can be applied to the construction of tunnels of different sizes and specifications, which significantly improves the overall construction efficiency.

[0044] In addition, the telescopic cylinder in the present application can be an oil cylinder, an air cylinder, or a combination of an oil cylinder and an air cylinder, as long as it can provide the driving force for telescoping. It can also be other mechanisms with the same function. This should be easy for technical personnel in this field to conceive, so it will not be described here one by one.

[0045] In addition, other auxiliary equipment such as a hydraulic system and its control system are also included. For example, a control switch, etc., which should be easy to conceive for those skilled in the art, will not be described in detail here.

[0046] The needle beam inverted arch trolley provided in the above embodiment of the present application and used in conjunction with a TBM has at least the following features:

[0047] The needle beam portion provided in the preferred embodiment of the present invention is driven by the first telescopic cylinder, and the translation seat drives the needle beam to slide along the transverse direction of the needle beam, thereby realizing the position adjustment of the needle beam in its width direction; through the needle beam lifting cylinder telescopically arranged with the needle beam, the needle beam can be conveniently adjusted and controlled in the height direction as required, thereby realizing the position optimization and adjustment of the needle beam portion in the operation process, which has a wider range of application scenarios and significantly improves the construction efficiency;

[0048] The needle beam provided in the preferred embodiment of the present invention can realize automatic and intelligent control through the beam frame lifting cylinder embedded in the internal cavity of the beam frame guide rod, thereby improving the accuracy of height adjustment of the entire beam frame; the walking mechanism spaced along the trajectory of the needle beam part moving inside the beam frame part converts sliding friction into rolling friction, thereby reducing the resistance encountered by the needle beam part during the movement; the beam frame lifting sleeve ring-shaped on the beam frame guide rod can ensure that the beam frame lifting mechanism can be raised or lowered in a preset direction, and the beam frame sliding sleeve fixed to the beam frame as a whole drives the entire beam frame to achieve height adjustment;

[0049] The needle beam portion provided in the preferred embodiment of the present invention, through the reinforcing beam fixed on the base plate, not only improves the strength, but also provides a platform connected to the cross-plate lifting mechanism, which effectively solves the problem of concentrated force on the base plate during the lifting process, ensures the functionality of the base plate, and extends the working life; driven by the formwork telescopic cylinder, the formwork sleeve slides on the formwork guide rod, and then drives the screw rod to move along the width direction of the beam frame. Under the joint action of the cross-plate lifting mechanism, the cross plate is driven along the width direction of the beam frame, relative to the beam frame, to switch between the retractable and retractable states, thereby realizing the expansion and extension of the working space of the cross plate, making the use scenarios of the needle beam arch trolley more diverse, and can be applied to the construction of tunnels of different sizes and specifications, which significantly improves the overall construction efficiency.

[0050] The above description is only a specific implementation method of the present invention. The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A needle beam inverted arch trolley for TBM, characterized in that: The invention comprises a needle beam portion (10), a beam frame portion (20) and a transverse plate portion (30), wherein the beam frame portion (20) is a rectangular frame formed by connecting square tubes; after the needle beam portion (10) passes through the beam frame portion (20), it is slidably arranged with the beam frame portion (20); the beam frame portion (20) is a rectangular frame formed by connecting square tubes; the transverse plate portion (30) is recyclably fixed to the bottom end of the beam frame portion (20) and is extended along the length direction of the transverse plate portion (30); the needle beam portion (10) comprises a needle beam (11), at least two sets of needle beams A base (12) and at least two sets of needle beam transverse movement mechanisms (14), wherein the needle beam (11) is a double-web box-type structure formed by welding a panel and supporting ribs; the needle beam base (12) is arranged on the bottom surface of the two end sides of the needle beam (11), and is connected to the needle beam (11) through the needle beam transverse movement mechanism (14); one end of the needle beam transverse movement mechanism (14) is slidably fixed on the top surface of the needle beam base (12), extending along the transverse direction of the needle beam (11), and the other end is fixed to the needle beam (11) as a whole, and is arranged to move together.

2. The needle beam inverted arch trolley according to claim 1, characterized in that: The needle beam transverse movement mechanism (14) includes a base (141), a translation seat (142) and a first telescopic cylinder (143), wherein the base (141) is fixed on the top surface of the needle beam base and extends along the width direction of the needle beam (11); the translation seat (142) is slidably fixed to the needle beam base (12) through one end of the base (141), and the other end oppositely arranged is connected to the needle beam (11) as a whole and is arranged to move together; one end of the first telescopic cylinder (143) is fixed on the base (141), and the other end oppositely arranged is fixed to the translation seat (142) as a whole and is arranged to move together.

3. The needle beam inverted arch trolley according to claim 1 or 2, characterized in that: It also includes a needle beam lifting mechanism (13) between the needle beam transverse movement mechanism (14) and the needle beam (11), wherein one end of the needle beam lifting mechanism (13) is fixed to the needle beam base (12) through the needle beam transverse movement mechanism (14), and the other end thereof is fixed to the needle beam (11) as a whole and is telescopically arranged in the vertical direction.

4. The needle beam inverted arch trolley according to claim 3, characterized in that: The needle beam lifting mechanism (13) includes a needle beam lifting sleeve (131), a needle beam guide rod (132) and a needle beam lifting cylinder (133), wherein the bottom end of the needle beam guide rod (132) is fixed on the top surface of the needle beam transverse movement mechanism (14), and the other end arranged oppositely extends upward along the vertical direction; the needle beam lifting sleeve (131) is ringed on the outer peripheral side of the needle beam guide rod (132) and is fixed to the needle beam (11) as a whole and is arranged to move together; the needle beam lifting cylinder (133) is embedded in the internal cavity of the needle beam guide rod (132), one end is fixed on the needle beam transverse movement mechanism (14), and the other end arranged oppositely is telescopically fixed to the needle beam (11).

5. The needle beam inverted arch trolley according to claim 1, characterized in that: The beam frame portion (20) includes at least two groups of beam frames (21) and at least one group of connecting frames (22), wherein the beam frames (21) are a combined structure of trusses, the beam frames (21) are arranged in parallel, fixed into one body by the connecting frames (22), and are arranged to move together; the two ends of the connecting frames (22) are respectively detachably connected to the beam frames (21) and are extended along the width direction of the beam frame portion (20).

6. The needle beam inverted arch trolley according to claim 5, characterized in that: It also includes at least two groups of beam frame lifting mechanisms (23) that are adjustable in height with the beam frame (21). The beam frame lifting mechanisms (23) are arranged at both ends of the beam frame (21) and extend along the height direction of the beam frame (21).

7. The needle beam inverted arch trolley according to claim 6, characterized in that: The beam frame lifting mechanism (23) includes a beam frame lifting base (231), a beam frame guide rod (232) and a beam frame lifting sleeve (233), wherein the beam frame guide rod (232) is fixed on the top surface of the beam frame lifting base (231) and extends along the height direction of the beam frame (21); the beam frame lifting sleeve (233) is ring-shaped on the beam frame guide rod (232) and is slidable relative to the beam frame guide rod (232); the outer peripheral side of the beam frame lifting sleeve (233) is fixed to the beam frame (21) as a whole and is configured to move together.

8. The needle beam inverted arch trolley according to claim 1, characterized in that: The transverse plate portion (30) includes a transverse plate (31) and at least two sets of transverse plate lifting mechanisms (32). The transverse plate (31) is arranged at the bottom of the beam frame portion (20) and is connected to the beam frame (21) in a lifting manner through the transverse plate lifting mechanism (32). The transverse plate lifting mechanism (32) is arranged at intervals along the length direction of the transverse plate (31). One end of the transverse plate lifting mechanism (32) is fixed to the transverse plate (31), and the other end arranged opposite to it is retractably fixed to the beam frame (21).

9. The needle beam inverted arch trolley according to claim 8, characterized in that: The transverse plate (31) includes a bottom plate (311) and a reinforcing beam (312). The bottom plate (311) is welded from a panel and supporting ribs. The reinforcing beam (312) is fixed on the top surface of the bottom plate (311) close to the beam frame portion (20) and extends along the length direction of the transverse plate (31).

10. The needle beam inverted arch trolley according to claim 1, characterized in that: It also includes a transverse plate support and retraction mechanism (33) fixed integrally with the transverse plate (31) and arranged to move together, wherein one end of the transverse plate support and retraction mechanism (33) is fixed on the transverse plate (31) and the other end thereof is arranged to be slidable with the beam frame (21).

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