A portal frame system with detachable top frame and TPD construction method
The detachable gantry system solves the adaptability problem of traditional TPD construction machines in height-restricted environments, enabling flexible height adjustment and improved construction efficiency, while ensuring the stability and precision of the chain cutter assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SEFTEC PRECISION MACHINERY MANUFACTURING CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-06-05
Smart Images
Figure CN224326277U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of underground continuous wall construction equipment, and in particular to a gantry system with a detachable top frame and a TPD construction method machine. Background Technology
[0002] In the field of diaphragm wall construction, the TPD (Trenching Pile Diaphragm) machine is a core construction equipment, mainly used for high-precision and high-efficiency trenching operations for diaphragm walls. This equipment forms a deep and continuous wall structure through the continuous cutting and vertical lifting motion of the cutter assembly, and is widely used in projects such as subway tunnels, deep foundation pit support, and hydraulic seepage prevention walls. The core structure of a traditional TPD machine typically includes the following parts: chassis system, frame, gantry system, and cutter assembly. The chassis system uses a tracked or wheeled walking mechanism to provide stable support and mobility for the equipment, adapting to the terrain requirements of complex construction sites. The frame is fixed to the chassis system, serving as the main frame supporting the gantry system and cutter assembly, ensuring the rigidity of the overall structure. The gantry system is vertically mounted on the frame, controlling the lifting motion of the cutter assembly through rigid guide rails to ensure the vertical accuracy of the trenching. The cutter assembly performs continuous cutting operations guided by the gantry system, and its motion stability directly affects the straightness of the trench and the quality of the wall.
[0003] However, in actual construction, traditional TPD (Transportation-to-Depth) machines face significant limitations: their gantry systems are typically fixed, integral structures, making them difficult to adapt to height restrictions in the construction environment. For example, in urban subway construction or near existing buildings, there are often overhead obstacles (such as viaducts, pipelines, low bridges, etc.) that cause the overall height of the gantry system to exceed the height limit. In such cases, traditional solutions require disassembling or adjusting the equipment structure, or even replacing the equipment, severely impacting construction efficiency and increasing costs.
[0004] To address the aforementioned issues, existing technologies lack a solution that can maintain the operational stability of the cutterhead assembly while flexibly adjusting the height of the gantry system. Therefore, there is an urgent need for a modularly detachable gantry system that can meet different construction depth requirements and flexibly adapt to height-restricted environments, thereby improving the scenario adaptability and construction economy of the TPD (Transmission Method) machine. Summary of the Invention
[0005] To address the aforementioned issues, the present invention aims to provide a gantry system with a detachable top frame and a TPD construction method machine, which offers advantages such as flexible adaptation to height-restricted environments, improved construction efficiency, and cost-effectiveness.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] This application provides a gantry system with a detachable top frame, the technical solution of which is as follows: it includes a gantry body on which a main body track extending vertically is provided; a top frame, detachably fixed to the top of the gantry body, on which a top frame track is provided; and a lifting frame, which is provided with a chain knife assembly, and the lifting frame is movably arranged on the main body track of the gantry body; when the top frame is installed on the gantry body, the lower end of the top frame track and the upper end of the main body track form a continuous docking track, and the lifting frame can move along the continuous docking track to the top frame track area.
[0008] Furthermore, this application also proposes that a positioning and fitting structure is provided between the lower end of the top frame track and the upper end of the main body track. The positioning and fitting structure includes a plug-in post provided on one side and a plug-in groove provided on the other side. When the top frame is connected to the upper end of the gantry body, the plug-in post is inserted into the plug-in groove to form track positioning.
[0009] Furthermore, this application also proposes that the gantry body includes two parallel main frame longitudinal beams and a main frame crossbeam connecting the upper ends of the two main frame longitudinal beams, and the main body track is symmetrically arranged on the outer side surface of the two main frame longitudinal beams; the top frame includes two parallel top frame longitudinal beams and a top frame crossbeam connecting the upper ends of the two top frame longitudinal beams, the lower end of the top frame longitudinal beam is detachably connected to the upper end of the main frame longitudinal beam, and the top frame track is symmetrically arranged on the outer side surface of the two top frame longitudinal beams.
[0010] Furthermore, this application also proposes that a first flange is provided at the upper end of the main frame longitudinal beam; a second flange corresponding to the first flange is provided at the lower end of the top frame longitudinal beam; and the first flange and the second flange are connected by a ring array of bolt assemblies.
[0011] Furthermore, this application also proposes that the plug-in post is vertically arranged on the lower end face of the top frame longitudinal beam; and the plug-in slot is correspondingly opened on the upper end face of the main frame longitudinal beam.
[0012] Furthermore, this application also proposes that the main track includes a first sliding column group disposed on both sides of the outer side of the main frame longitudinal beam, and the top frame track includes a second sliding column group disposed on both sides of the outer side of the top frame longitudinal beam; the upper end of the first sliding column group and the lower end of the second sliding column group form a sleeve-type insertion structure through the cooperation of the insertion column and the insertion slot.
[0013] Furthermore, this application also proposes that sliding grooves are provided on both sides of the lifting frame, and the inner contour of the sliding grooves matches the shape of the main track / top frame track to form an enclosing sliding pair.
[0014] Furthermore, this application also proposes a TPD (Transmission Method) machine, including a chassis system, a frame, a gantry system, and a chain cutter assembly. The frame is mounted on the chassis system, the gantry system is vertically mounted on the frame, and the chain cutter assembly is mounted on the lifting frame of the gantry system. The gantry system adopts the aforementioned top-frame detachable gantry system.
[0015] As can be seen from the above, the gantry system with a detachable top frame and the TPD construction method machine provided in this application, through the design of the detachable top frame, enable the gantry system to flexibly adapt to height-restricted environments, improve construction efficiency and economy, and have significant application value. Attached Figure Description
[0016] Figure 1 The present application provides a three-dimensional assembly diagram of the gantry body and the top frame.
[0017] Figure 2 The present application provides a front view of the assembly of the gantry body and the top frame.
[0018] Figure 3 This is a schematic diagram showing the completed assembly of the gantry body and top frame provided in this application.
[0019] Figure 4 This is a schematic diagram of the TPD process machine in Example 2. Detailed Implementation
[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.
[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Example 1
[0025] like Figure 1-4As shown, this embodiment relates to a gantry system with a detachable top frame, including a gantry body 1, a top frame 2, and a lifting frame 3. A main track 11 extending vertically is provided on the gantry body 1. The top frame 2 is detachably fixed to the top of the gantry body 1, and a top frame track 21 is provided on it. The lifting frame 3 is provided with a chain cutter assembly 4 and is movably mounted on the main track 11 of the gantry body 1. When the top frame 2 is installed on the gantry body 1, the lower end of the top frame track 21 and the upper end of the main track 11 form a continuous docking track, and the lifting frame 3 can move along the continuous docking track to the area of the top frame track 21. This technical solution, through the design of the detachable top frame 2, allows the gantry system to be flexibly adjusted according to the height restrictions of the construction environment. In scenarios requiring a higher construction height, the top frame 2 can be installed on the gantry body 1, expanding the movement range of the lifting frame 3; while in height-restricted environments, the top frame 2 can be detached, reducing the overall height of the gantry system. This design solves the problem that traditional gantry systems, due to their fixed integral structure, are difficult to adapt to height-restricted environments, thus improving construction flexibility and efficiency. Compared with existing technologies, the gantry system of this application achieves a high degree of flexible adjustment while maintaining the operational stability of the chain cutter assembly 4, significantly improving the equipment's adaptability to different scenarios and construction economy.
[0026] Furthermore, a positioning and fitting structure is provided between the lower end of the top frame track 21 and the upper end of the main body track 11. This positioning and fitting structure includes a plug-in post 51 disposed on one side and a plug-in groove 52 disposed on the other side. When the top frame 2 is connected to the upper end of the gantry body 1, the plug-in post 51 is inserted into the plug-in groove 52 to form track positioning. As a preferred embodiment, the cross-sectional shape of the plug-in post 51 and the plug-in groove 52 can be circular, square, or other polygonal to ensure stability and accuracy during insertion. In addition, the material of the plug-in post 51 and the plug-in groove 52 can be high-strength steel to enhance their durability and resistance to deformation. Furthermore, the surfaces of the plug-in post 51 and the plug-in groove 52 can be hardened to improve their wear resistance and service life. Specifically, the positioning and fitting structure achieves precise positioning between the top frame track 21 and the main body track 11 through the cooperation of the plug-in post 51 and the plug-in groove 52. When the top frame 2 is installed on the gantry body 1, the insertion post 51 is inserted into the insertion slot 52, ensuring a seamless connection between the two and thus avoiding the problem of inaccurate track alignment. This structure is simple and effective, improving the stability and reliability of the gantry system. Furthermore, the initial alignment of the insertion post 51 and the insertion slot 52 facilitates subsequent flange alignment, making construction more convenient. Therefore, the technical solution of this application, by setting up a positioning and mating structure for the insertion post 51 and the insertion slot 52, ensures precise alignment between the top frame track 21 and the main body track 11, solving the problem of inaccurate track positioning in the prior art. Compared with the prior art, this solution has advantages such as simple structure, convenient installation, and high positioning accuracy, significantly improving the overall performance and construction efficiency of the gantry system.
[0027] In a more specific design, the insertion post 51 is vertically positioned on the lower end face of the top frame longitudinal beam 22, and the insertion slot 52 is correspondingly located on the upper end face of the main frame longitudinal beam 12. The design of the insertion post 51 and insertion slot 52, by vertically positioning them on the lower end face of the top frame longitudinal beam 22 and the upper end face of the main frame longitudinal beam 12, achieves precise docking between the top frame track 21 and the main track 11. After the insertion post 51 is inserted into the insertion slot 52, a stable positioning structure is formed, ensuring that the track will not misalign during connection, thereby guaranteeing that the lifting frame 3 can move smoothly along the continuously docked track. This design achieves high-precision docking of the track through a simple mechanical structure, solving the technical problem of track misalignment affecting equipment operation. Furthermore, by positioning the insertion post 51 on the lower end face of the top frame longitudinal beam 22, rather than on the upper end of the main frame longitudinal beam 12, it is ensured that when the top frame 2 is removed, the top end of the main frame longitudinal beam 12 will not be raised due to the insertion post 51.
[0028] like Figure 1-3 As shown, the gantry body 1 includes two parallel main frame longitudinal beams 12 and a main frame crossbeam 13 connecting the upper ends of the two main frame longitudinal beams 12. Main track 11 is symmetrically arranged on the outer surfaces of the two main frame longitudinal beams 12. The top frame 2 includes two parallel top frame longitudinal beams 22 and a top frame crossbeam 23 connecting the upper ends of the two top frame longitudinal beams 22. The lower ends of the top frame longitudinal beams 22 are detachably connected to the upper ends of the main frame longitudinal beams 12. Top frame track 21 is symmetrically arranged on the outer surfaces of the two top frame longitudinal beams 22. Thus, the gantry body 1 forms a stable frame structure through the two main frame longitudinal beams 12 and the main frame crossbeam 13. The symmetrical arrangement of the main track 11 on the outer surfaces of the two main frame longitudinal beams 12 ensures the stability of the lifting frame 3 during movement. The top frame 2 forms a frame structure corresponding to the gantry body 1 through the two top frame longitudinal beams 22 and the top frame crossbeam 23. The symmetrical arrangement of the top frame track 21 on the outer surfaces of the two top frame longitudinal beams 22 ensures the stability of the lifting frame 3 during movement within the top frame 2 area. The lower end of the top frame longitudinal beam 22 is detachably connected to the upper end of the main frame longitudinal beam 12, making the connection between the top frame 2 and the gantry body 1 simple and easy to achieve stable docking. Compared with the prior art, this technical solution simplifies the connection structure between the gantry body 1 and the top frame 2 through modular design, improves the convenience of installation and disassembly, and ensures the stability and accuracy of the lifting frame 3 during movement.
[0029] Furthermore, a first flange 61 is provided at the upper end of the main frame longitudinal beam 12; a second flange 62 corresponding to the first flange 61 is provided at the lower end of the top frame longitudinal beam 22; the first flange 61 and the second flange 62 are connected by a ring-shaped bolt assembly. The design of the first flange 61 and the second flange 62 makes the connection between the main frame longitudinal beam 12 and the top frame longitudinal beam 22 more stable. The first flange 61 is usually fixed to the upper end of the main frame longitudinal beam 12 by welding or bolting, while the second flange 62 is fixed to the lower end of the top frame longitudinal beam 22 in the same way. The flange can be round, square, or other suitable shapes to ensure the stability and accuracy of the connection. The bolt assembly typically includes multiple bolts and nuts, which are evenly distributed in a ring-shaped array on the edge of the flange. By tightening the bolts, the first flange 61 and the second flange 62 can be tightly connected together, thereby ensuring a stable connection between the main frame longitudinal beam 12 and the top frame longitudinal beam 22. As a preferred embodiment, the bolt assembly can use high-strength bolts to further improve the stability of the connection. Furthermore, the surface of the flange can be textured or coated with anti-slip material to increase friction and prevent slippage or loosening at the connection. During installation, a torque wrench can be used to ensure consistent tightening force on each bolt, thus avoiding unstable connections caused by uneven bolt tightness. To address this, the technical solution of this application achieves a detachable connection between the main frame longitudinal beam 12 and the top frame longitudinal beam 22 through the cooperation of flanges 61 / 62 and bolt assemblies, while ensuring the stability and precision of the connection. Compared with existing technologies, this solution not only solves the problem of traditional gantry systems being unable to adapt to height restrictions but also improves the flexibility and construction efficiency of the gantry system. Through this design, the gantry system can be quickly disassembled and reinstalled when needed, adapting to different construction environments and height restrictions, reducing inconvenience and costs during construction.
[0030] In the specific design, the main track 11 includes a first sliding column group 111 disposed on both sides of the outer surface of the main frame longitudinal beam 12, and the top frame track 21 includes a second sliding column group 211 disposed on both sides of the outer surface of the top frame longitudinal beam 22. The upper end of the first sliding column group 111 and the lower end of the second sliding column group 211 form a sleeve-type insertion structure through the cooperation of the insertion column 51 and the insertion slot 52. The first sliding column group 111 and the second sliding column group 211 are respectively disposed on both sides of the outer surface of the main frame longitudinal beam 12 and the top frame longitudinal beam 22; this symmetrical arrangement ensures the stability of the track. Furthermore, a guide structure, such as a chamfer or bevel, can be provided between the insertion column 51 and the insertion slot 52 to facilitate the smooth insertion of the insertion column 51 into the insertion slot 52. In addition, a locking mechanism, such as a spring pin or bolt, can be provided between the insertion column 51 and the insertion slot 52 to enhance the fixing effect after insertion. Thus, through the cooperation of the insertion post 51 and the insertion slot 52, the upper end of the first sliding post group 111 and the lower end of the second sliding post group 211 form a sleeve-type insertion structure. This structure not only achieves continuous track connection but also enhances track stability and smooth sliding. Specifically, the sleeve-type insertion structure can effectively disperse the stress at the track connection point, reducing track deformation or jamming caused by uneven or loose connections. Therefore, this design solves the technical problem of forming a continuous and stable sliding track structure when the main track 11 and the top frame track 21 are connected, ensuring the smooth movement of the lifting frame 3 on the track. Compared with the prior art, this technical solution achieves rapid track connection and stable operation through a simple insertion structure, improving construction efficiency and equipment reliability.
[0031] like Figure 4 As shown, the lifting frame 3 has sliding grooves 31 on both sides. The inner contour of the sliding grooves 31 matches the shape of the main track 11 / top frame track 21, forming a wrapping sliding pair. The design of the sliding grooves 31 allows the lifting frame 3 to tightly wrap around the main track 11 and the top frame track 21, ensuring the stability of the lifting frame 3 during movement. Through the matching of the sliding grooves 31 with the tracks, the lifting frame 3 can move smoothly between the gantry body 1 and the top frame 2, avoiding motion instability caused by track discontinuity or mismatch of the sliding pairs. Specifically, the inner contour of the sliding grooves 31 matches the shape of the main track 11 and the top frame track 21, forming a wrapping sliding pair structure. This structure not only improves the lifting accuracy of the chain cutter assembly 4, but also enhances the reliability and durability of the entire gantry system. Therefore, the technical solution of this application effectively solves the problem of stable sliding of the lifting frame 3 on the tracks of the gantry body 1 and the top frame 2 through the design of the sliding grooves 31. Compared with existing technologies, this solution not only improves the lifting accuracy of the chain cutter assembly 4, but also enhances the reliability and durability of the entire gantry system, demonstrating significant technical advantages. Example 2
[0032] like Figure 4 As shown, this application also proposes a TPD (Transmission Method) machine, including a chassis system 5, a frame 6, a gantry system, and a chain cutter assembly 4. The frame 6 is mounted on the chassis system 5, the gantry system is vertically mounted on the frame 6, and the chain cutter assembly 4 is mounted on the lifting frame 3 of the gantry system. The gantry system adopts the top-frame detachable gantry system described in Embodiment 1.
[0033] Therefore, this application solves the problem of construction efficiency being affected by the height limitation of traditional gantry systems by adopting a detachable top frame gantry system. The chassis system 5 provides stable support and mobility, while the frame 6 serves as the main frame supporting the gantry system and the cutter assembly 4, ensuring the rigidity of the overall structure. The gantry system is vertically installed on the frame 6, and the lifting and lowering movement of the cutter assembly 4 is controlled by rigid guide rails 11 / 21, ensuring the vertical accuracy of the trenching. The cutter assembly 4 performs continuous cutting operations guided by the gantry system, and its movement stability directly affects the straightness of the trenching and the quality of the wall. The detachable top frame gantry system can flexibly adapt to height-restricted environments, improving the scene adaptability and construction economy of the TPD method machine. In addition, during the cutter box installation stage of the cutter assembly 4 of the TPD method machine, the top frame 2 can be added to the gantry body 1 to meet the installation height requirements of the cutter box; while in height-restricted scenarios, the top frame 2 can be removed for construction.
[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0035] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.
Claims
1. A gantry system with a detachable top frame, characterized in that, include: The main body of the gantry (1) is provided with a main track (11) extending in the vertical direction. The top frame (2) is detachably fixed to the top of the gantry body (1), and a top frame track (21) is provided on it. The lifting frame (3) is equipped with a chain knife assembly (4), and the lifting frame (3) is movably mounted on the main track (11) of the gantry body (1); When the top frame (2) is installed on the gantry body (1), the lower end of the top frame track (21) and the upper end of the main body track (11) form a continuous docking track, and the lifting frame (3) can move along the continuous docking track to the area of the top frame track (21).
2. The gantry system according to claim 1, characterized in that: A positioning and fitting structure is provided between the lower end of the top frame track (21) and the upper end of the main track (11), the positioning and fitting structure including: The plug-in post (51) is set on one of the sides. A plug slot (52) is provided on the other side; When the top frame (2) is connected to the upper end of the gantry body (1), the plug-in post (51) is inserted into the plug-in slot (52) to form a track positioning.
3. The gantry system according to claim 1, characterized in that: The main body (1) of the gantry includes two parallel main frame longitudinal beams (12) and a main frame crossbeam (13) connecting the upper ends of the two main frame longitudinal beams. The main body track (11) is symmetrically arranged on the outer side of the two main frame longitudinal beams (12). The top frame (2) includes two parallel top frame longitudinal beams (22) and a top frame crossbeam (23) connecting the upper ends of the two top frame longitudinal beams. The lower end of the top frame longitudinal beam (22) is detachably connected to the upper end of the main frame longitudinal beam (12). The top frame track (21) is symmetrically arranged on the outer side of the two top frame longitudinal beams (22).
4. The gantry system according to claim 3, characterized in that: The upper end of the main frame longitudinal beam (12) is provided with a first flange (61); The lower end of the top frame longitudinal beam (22) is provided with a second flange (62) corresponding to the first flange (61); The first flange (61) and the second flange (62) are connected by a bolt assembly in an annular array.
5. The gantry system according to claim 2, characterized in that: The plug-in post (51) is vertically installed on the lower end face of the top frame longitudinal beam (22); The insertion slot (52) is correspondingly opened on the upper end face of the main frame longitudinal beam (12).
6. The gantry system according to claim 5, characterized in that: The main track (11) includes a first sliding column group (111) disposed on both sides of the outer side of the main frame longitudinal beam (12), and the top frame track (21) includes a second sliding column group (211) disposed on both sides of the outer side of the top frame longitudinal beam (22). The upper end of the first sliding post group (111) and the lower end of the second sliding post group (211) form a sleeve-type plug-in structure through the cooperation of the plug-in post (51) and the plug-in groove (52).
7. The gantry system according to claim 1, characterized in that: The lifting frame (3) is provided with sliding grooves (31) on both sides. The inner contour of the sliding grooves (31) matches the shape of the main track (11) / top frame track (21) to form a covering sliding pair.
8. A TPD (Transmission Method) machine, comprising a chassis system (5), a frame (6), a gantry system, and a chain cutter assembly (4), wherein the frame (6) is mounted on the chassis system (5), the gantry system is vertically mounted on the frame (6), and the chain cutter assembly (4) is mounted on the lifting frame (3) of the gantry system, characterized in that: The gantry system adopts the top-mounted gantry system as described in any one of claims 1-7.