Underground diaphragm wall TRD construction equipment with large-angle cutting function

Abstract

The invention relates to underground diaphragm wall TRD construction equipment with a wide-angle cutting function. The underground diaphragm wall TRD construction equipment comprises a chassis mechanism, a cab, a hydraulic system, a cutting system, a transverse guide rail frame, a vertical guide rail frame and a supporting assembly. The supporting assembly is composed of a first supporting rod, a second supporting rod and an angle adjusting oil cylinder, and the first supporting rod is connected with the second supporting rod through a knuckle bearing. The angle adjusting oil cylinder telescopically drives the supporting assembly to move to drive the transverse guide rail frame, the vertical guide rail frame and the cutting system to integrally rotate to adjust the cutting angle, so that the angle adjusting range is expanded, the equipment stability is improved, and stress concentration is avoided.

Description

Technical Field

[0001] This invention relates to the field of underground engineering construction equipment technology, and in particular to a large-angle cutting TRD construction equipment for underground continuous walls. Background Technology

[0002] TRD (Trench Cutting Re-mixing Deep Wall) is a construction technique widely used in underground engineering projects such as seepage barriers and retaining walls. This method involves inserting a cutting box equipped with a cutting chain and cutter head, meeting the design depth, into the ground to perform longitudinal cutting and transverse advancement to form a trench. Simultaneously, cement grout is injected and thoroughly mixed with the original foundation to ultimately form a continuous wall of uniform thickness.

[0003] In TRD (Diverterless Damping) construction equipment, the ability of the cutting system to flexibly and stably adjust the cutting angle is crucial for adapting to complex and variable geological conditions and ensuring the quality of the diaphragm wall. Existing technologies have explored various approaches to improve the stability and adjustability of the equipment. For example, Chinese utility model patent CN211113602U discloses a TRD construction equipment for diaphragm walls, which enhances overall stability by obliquely installing hydraulic support columns between the main frame and the support frame. Simultaneously, the equipment incorporates tilting cylinders on both sides of the cutting box to adjust the lateral angle of the cutting box relative to the trench, thereby controlling the verticality of the trench.

[0004] However, after in-depth analysis and practice, this existing technical solution still has significant limitations. Specifically, the adjustment range of the tilting cylinder is limited, only allowing for small-angle deflection of the cutting box, making it difficult to meet the special working conditions requiring large-angle tilting cutting. Furthermore, the layout of the rotation fulcrum and support structure of the cutting system in this solution may lead to an increased shift in the equipment's center of gravity during large-angle adjustments. To maintain stability, an external counterweight is required, which not only increases the equipment's manufacturing cost but also affects the equipment's operational flexibility and overall stability.

[0005] Therefore, there is an urgent need in this field for a new type of TRD construction equipment that can achieve a wide range of angle adjustments for the cutting system while maintaining high equipment stability, so as to broaden its process adaptability. Summary of the Invention

[0006] To address the aforementioned problems, the present invention aims to provide a large-angle cutting TRD construction device for underground continuous walls, which has the advantages of expanding the range of cutting angle adjustment, improving equipment stability, and avoiding stress concentration.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] This application provides a large-angle cutting TRD (Diverterless Damping) construction equipment for underground continuous walls, with the following technical solution: It includes a chassis mechanism, a driver's cab and hydraulic system mounted on the chassis mechanism, and a cutting system driven by the hydraulic system. The equipment further includes: a transverse guide rail frame, the lower end of which is hinged to the chassis mechanism via a first hinge; a vertical guide rail frame, movably mounted on the transverse guide rail frame, with the cutting system mounted on the vertical guide rail frame; and a support assembly, which includes a first strut, a second strut, and an angle adjustment cylinder. The bottom of the first strut is hinged to the chassis mechanism, and the top of the second strut is hinged to the transverse guide rail frame. The first and second struts are connected by a spherical bearing. The bottom of the angle adjustment cylinder is hinged to the chassis mechanism, and its output end is connected to the spherical bearing. The extension and retraction of the angle adjustment cylinder drives the support assembly to move, thereby rotating the transverse guide rail frame, the vertical guide rail frame, and the cutting system as a whole around the first hinge, thus adjusting the cutting angle.

[0009] Furthermore, this application also proposes that the lower end of the transverse guide rail frame is connected to the chassis mechanism via a first hinge, and the bottom of the angle adjustment cylinder is hinged to the first hinge; the hinge point between the first support rod and the chassis mechanism constitutes a second hinge, and the hinge point between the second support rod and the transverse guide rail frame constitutes a third hinge, and the first hinge, the second hinge and the third hinge are arranged in a triangular pattern in space.

[0010] Furthermore, this application also proposes that the vertical guide rail frame is driven to move along the horizontal guide rail frame by a horizontal drive mechanism, wherein the horizontal drive mechanism is a horizontal hydraulic cylinder disposed on the horizontal guide rail frame.

[0011] Furthermore, this application also proposes that when the cylinder shaft of the angle adjustment cylinder is at its maximum output stroke, the first support rod and the second support rod are on the same straight line, and the cutting system is in a vertical state.

[0012] Furthermore, this application also proposes that the cutting system is driven to move up and down along the vertical guide rail by a lifting drive mechanism.

[0013] Furthermore, this application also proposes that the lifting drive mechanism is a lifting cylinder mounted on the vertical guide rail frame.

[0014] Furthermore, this application also proposes that the chassis mechanism includes a track frame, with a first hinge disposed on the inner side of the track frame.

[0015] Furthermore, this application also proposes that the transverse guide rail, the vertical guide rail, and the cutting system are located on the side of the chassis mechanism, and a counterweight is provided on the other side of the chassis mechanism.

[0016] Furthermore, this application also proposes that the cutting angle adjustment range of the cutting system is 0° to 90°.

[0017] Furthermore, this application also proposes that the support components are in two sets, symmetrically arranged on both sides of the transverse guide rail frame.

[0018] As can be seen from the above, the TRD construction equipment for large-angle cutting of underground continuous walls and its angle adjustment method provided in this application drive the support component through the angle adjustment cylinder to drive the transverse guide rail frame to rotate around the hinge, thereby realizing the large-angle flexible adjustment of the cutting system. At the same time, the triangular arrangement of the hinge structure disperses stress, which has the advantages of expanding the cutting angle adjustment range, improving equipment stability and avoiding stress concentration. Attached Figure Description

[0019] Figure 1 A schematic diagram of a diaphragm wall TRD construction equipment provided for this application (the dotted line part is a schematic diagram after the cutting angle is adjusted).

[0020] Figure 2 A schematic diagram of the adjustment of the support components provided in this application (solid lines and dashed lines represent different states).

[0021] Figure 3 This application provides a schematic diagram of the transverse cutting of a TRD construction equipment for diaphragm walls (the dashed line represents the position of the cutting system after cutting). Detailed Implementation

[0022] Embodiments of the present invention are described in detail below, examples of which are illustrated 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 the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this invention, 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," and "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 invention 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 invention.

[0024] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more, unless explicitly defined otherwise.

[0025] In this invention, 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 invention according to the specific circumstances.

[0026] 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.

[0027] In existing technologies, the TRD (Transmission Damping) method uses a cutting box inserted into the ground to perform longitudinal cutting and transverse trenching, forming a continuous wall of uniform thickness. Current equipment uses tilting cylinders to adjust the cutting angle, but the adjustment range is limited, making it difficult to achieve large-angle cutting. To address these issues, designers found that the existing support structure could not adapt to the torque changes caused by large-angle adjustments. Analysis revealed that rigid connections caused motion interference, while independent cylinder drives lacked overall linkage support. By introducing a deformable linkage structure, linear telescopic motion is converted into rotational motion, while multiple hinge points distribute the force. Further consideration was given to setting a rotational fulcrum between the chassis and the guide rail frame, working in conjunction with dynamic support components to counteract overturning moments and form a stable triangular force system.

[0028] As shown in Figures 1-3, this embodiment presents a large-angle cutting TRD (Diverterless Damping) construction equipment, including a chassis mechanism 1, a driver's cab 2, a hydraulic system 3, and a cutting system 4. The lower end of the transverse guide rail frame 5 is connected to the chassis mechanism 1 via a hinge point. The vertical guide rail frame 7 is movably mounted on the transverse guide rail frame 5, and the cutting system 4 is installed on the vertical guide rail frame 7. The support assembly includes a first support rod 9 hinged at the bottom to the chassis mechanism 1 and a second support rod 10 hinged at the top to the transverse guide rail frame 5, connected by a spherical bearing 12. The angle adjustment cylinder 11 is hinged at the bottom to the chassis mechanism 1, and its output end is connected to the spherical bearing 12. The cylinder's extension and retraction drive the support assembly to deform, causing the transverse guide rail frame 5 to rotate around the hinge point, thus adjusting the cutting angle.

[0029] The transverse guide rail 5 refers to a guide structure extending horizontally, which can be implemented using a combination of welded steel beams and slide rails. Its lower hinge point serves as the rotation center axis, allowing the transverse guide rail 5 to rotate around this axis. The vertical guide rail 7 refers to a lifting guide mechanism perpendicular to the ground, which can be implemented using a frame structure with rollers. It changes the horizontal position of the cutting system 4 through lateral movement to achieve cutting. The spherical bearing 12 in the support assembly refers to a connecting component with multi-directional rotation capability, which can be implemented using a combination of spherical bearings and pins, allowing the first support rod 9 and the second support rod 10 to rotate relative to each other in three-dimensional space. The angle adjustment cylinder 11 refers to a hydraulic linear actuator, which can be implemented using a double-acting hydraulic cylinder. Its extension and retraction motion is converted into a change in the shape of the support assembly through the spherical bearing 12.

[0030] Specifically, when the cylinder shaft of the angle adjustment cylinder 11 is at its maximum output stroke, the first support rod 9 and the second support rod 10 are on the same straight line, and the cutting system 4 is in a vertical state. When the angle adjustment cylinder 11 retracts, it pulls the joint bearing 12 to move closer to the chassis mechanism 1, increasing the angle between the first support rod 9 and the second support rod 10. At this time, the second support rod 10 pulls the transverse guide rail 5 to rotate counterclockwise around the lower hinge point, causing the vertical guide rail 7 and the cutting system 4 to tilt synchronously. When the cylinder returns to its original position, the joint bearing 12 moves away from the chassis mechanism 1, the angle between the two support rods decreases, and the transverse guide rail 5 rotates clockwise to straighten. During this process, the hinge point between the first support rod 9 and the chassis mechanism 1, and the hinge point between the second support rod 10 and the transverse guide rail 5 form a dynamic support triangle, allowing for precise control of the cutting angle by adjusting the cylinder stroke. The spherical bearing 12 eliminates rigid connection constraints, avoiding stress concentration caused by the deflection of the transverse guide rail 5. Simultaneously, the continuous deformation of the support assembly maintains the force balance of the transverse guide rail 5. Through the above technical solution, this application enables continuous angle adjustment of the cutting system 4 within the range of 0 to 90 degrees, meeting the needs of various working conditions such as vertical cutting and horizontal grooving. The dynamic deformation of the support assembly effectively offsets the overturning force generated by large-angle adjustments, maintaining equipment stability without the need for external counterweights. The spherical bearing 12 and its multi-hinged joint design eliminate motion interference, ensuring a smooth and reliable angle adjustment process, adapting to construction requirements under complex geological conditions.

[0031] In the specific design, the lower end of the transverse guide rail frame 5 is connected to the chassis mechanism 1 via a first hinge 6, and the bottom of the angle adjustment cylinder 11 is hinged to the first hinge 6. The hinge point between the first support rod 9 and the chassis mechanism 1 forms the second hinge 13, and the hinge point between the second support rod 10 and the transverse guide rail frame 5 forms the third hinge 14. The first hinge 6, the second hinge 13, and the third hinge 14 are arranged in a triangular pattern in space. The first hinge 6 refers to the rotational fulcrum between the transverse guide rail frame 5 and the chassis mechanism 1, which can be implemented using a pin connection structure. Its function is to constrain the rotational movement of the transverse guide rail frame 5 within a single plane. The second hinge 13 refers to the connection point between the first support rod 9 and the chassis mechanism 1, which can be implemented using a hinge seat with a self-lubricating bearing. Its function is to provide a stable bottom fixing end for the support assembly. The third hinge 14 refers to the connection point between the second strut 10 and the end of the transverse guide rail 5. Specifically, it can be implemented using a ball joint structure. Its function is to allow the second strut 10 to undergo spatial angular changes when the transverse guide rail 5 rotates. The triangular arrangement refers to the three hinge axes forming a non-coplanar geometric relationship in three-dimensional space. This can be achieved by adjusting the installation position of each hinge. Its function is to distribute and transfer the load to the chassis mechanism 1 through the spatial truss effect.

[0032] Specifically, when the angle adjustment cylinder 11 extends or retracts, its bottom point, aligned with the first hinge 6, ensures that the driving force acts directly on the rotation axis of the transverse guide rail 5, preventing additional bending moments. The first support rod 9 and the second support rod 10 are connected via a joint bearing 12, forming a retractable support arm structure under the drive of the cylinder. The triangular arrangement of the three hinges forms a stable spatial force system. When the transverse guide rail 5 rotates around the first hinge 6, the constraint of the second hinge 13 and the third hinge 14 causes the support assembly to simultaneously bear axial pressure and transverse shear force. This layout converts the overturning moment generated by the cutting system 4 into the axial load of the support assembly through geometric constraints, effectively reducing the eccentric load on the chassis mechanism 1. Through the above technical solution, this application converts the overturning moment into the axial pressure of the support assembly through the triangularly arranged hinge structure when the transverse guide rail 5 rotates at a large angle, preventing the chassis mechanism 1 from bearing concentrated loads on one side. The spatial truss effect ensures that the support assembly maintains structural rigidity during adjustment, preventing hinge wear caused by excessive local stress. The geometric constraints of the three hinges enable the equipment to automatically adjust the load distribution when cutting at large angles, maintaining the stability of the whole machine without the need to add external counterweights.

[0033] In a specific implementation, the vertical guide rail frame 7 is driven to move along the horizontal guide rail frame 5 by a horizontal drive mechanism. The horizontal drive mechanism is a device that provides horizontal driving force to the vertical guide rail frame 7. Specifically, it can be implemented using linear drive components such as hydraulic cylinders, racks and pinions, or sprockets and chains. In this embodiment, the horizontal drive mechanism is a horizontal hydraulic cylinder mounted on the horizontal guide rail frame 5. Through this mechanism, the movement trajectory of the vertical guide rail frame 7 on the horizontal guide rail frame 5 is precisely controlled, ensuring that the cutting system 4 remains stable during horizontal movement, ultimately pushing the cutting system 4 to move laterally and achieve cutting. The horizontal guide rail frame 5 is a track structure that supports the movement of the vertical guide rail frame 7. Specifically, it can be implemented using a rigid frame with grooves or rollers. This guide rail frame serves as the moving reference for the vertical guide rail frame 7, limiting its movement range through its length and rigidity, preventing the cutting system 4 from shifting its center of gravity due to excessive lateral displacement. Specifically, after the horizontal drive mechanism is connected to the vertical guide rail frame 7, it drives the vertical guide rail frame 7 to move horizontally along the horizontal guide rail frame 5 through the extension or transmission of the linear drive components. When adjusting the cutting angle, the horizontal guide rail 5 rotates around the first hinge 6, which drives the vertical guide rail 7 and the cutting system 4 to adjust the angle synchronously. After the adjustment is completed, the horizontal drive mechanism drives the horizontal movement to achieve cutting.

[0034] Furthermore, the cutting system 4 is driven to rise and fall along the vertical guide rail 7 via a lifting drive mechanism. The lifting drive mechanism is a device that provides vertical power output, specifically a hydraulic cylinder, chain drive mechanism, or rack and pinion mechanism. Its function is to provide driving force for the lifting and lowering movement of the cutting system 4 along the vertical guide rail 7, and to fix the cutting system 4 at the target height position through a locking mechanism. In a specific embodiment, the lifting drive mechanism is a lifting hydraulic cylinder mounted on the vertical guide rail 7. The lifting drive mechanism is an execution unit that provides vertical movement power to the cutting system 4, specifically a single-stage or multi-stage hydraulic cylinder. Its cylinder body end is fixedly connected to the vertical guide rail 7, and its piston rod end is connected to the cutting system 4. The vertical guide rail 7 is a rigid support structure with vertical guiding function, specifically a metal frame with guide grooves or rollers. Its function is to provide precise guiding constraints for the lifting and lowering movement of the cutting system 4, preventing the cutting system 4 from deviating or swaying during movement.

[0035] Specifically, the lifting drive mechanism is rigidly connected to the vertical guide rail 7. When the drive mechanism is activated, the cutting system 4 moves vertically along the guide structure on the vertical guide rail 7. The lifting stroke of the cutting system 4 can be controlled by the stroke of the drive mechanism, such as adjusting the extension length of the hydraulic cylinder or the transmission distance of the chain. After moving to the target position, the cutting system 4 is fixed by a mechanical locking device or a hydraulic locking valve to ensure its stable position during operation. The vertical guide structure of the vertical guide rail 7 restricts the horizontal freedom of the cutting system 4, allowing it to move only in the vertical direction, thus preventing the overall center of gravity of the equipment from shifting due to changes in the position of the cutting system 4. Through the above technical solution, this application achieves independent position adjustment of the cutting system 4 in the vertical direction, enabling it to adapt to the cutting needs of strata at different depths. The lifting movement of the cutting system 4 is precisely guided by the vertical guide rail 7, avoiding swaying or offset during position adjustment, thereby improving cutting accuracy. At the same time, since the movement range of the cutting system 4 is limited within the vertical guide rail 7, the overall stability of the equipment is maintained, ensuring operational safety without the need for an external counterweight structure.

[0036] like Figure 1 As shown, the chassis mechanism 1 includes a track frame 17, with a first hinge 6 located on the inner side of the track frame 17. The track frame 17 refers to the main load-bearing frame constituting the chassis mechanism 1, which can be implemented using a welded steel structure. A tracked walking device is installed at its bottom to provide movement and support for the equipment. The inner area of ​​the track frame 17 refers to the area symmetrically distributed on both sides of the longitudinal centerline of the equipment, close to the geometric center of the chassis. The first hinge 6 is a rotary joint connecting the transverse guide rail frame 5 and the chassis mechanism 1, which can be implemented using a pin-bearing structure, and its installation position is located in the inner area of ​​the track frame 17.

[0037] Specifically, the transverse guide rail 5 is rotatably connected to the inner area of ​​the track frame 17 via the first hinge 6. When the support assembly drives the transverse guide rail 5 to rotate around the first hinge 6, the fulcrum of the first hinge 6 is restricted to the inner side of the track frame 17, making the axis of rotation closer to the longitudinal centerline of the equipment. In this state, the overlap between the movement trajectory of the transverse guide rail 5 and the cutting system 4 and the equipment's center of gravity distribution area increases. Furthermore, a counterweight 18 is installed on the other side to reduce the center of gravity offset during equipment operation and to reduce the weight of the external counterweight 18, ensuring that the working center of gravity is internal during cutting and making the operation more stable.

[0038] This application further proposes a technical solution where the transverse guide rail 5, the vertical guide rail 7, and the cutting system 4 are located on the side of the chassis mechanism 1, and a counterweight 18 is provided on the other side of the chassis mechanism 1. The cutting system 4 refers to an operating device comprising a cutting box and a drive chain, specifically implemented using a hydraulic motor-driven multi-row chainsaw structure. The spatial layout formed by integrating the transverse guide rail 5, the vertical guide rail 7, and the cutting system 4 on the side of the chassis ensures that the center of gravity of the operating module is always within the boundary of the chassis support surface. This solution, by confining the operating module to the side of the chassis and providing a counterweight 18 on the other side, ensures that the movement trajectory of the cutting system 4 coincides with the chassis support boundary, fundamentally eliminating the risk of excessive center of gravity offset. This innovative structural layout changes the traditional design approach of compensating for torque by superimposing counterweights, achieving a balance between equipment stability and operational flexibility.

[0039] In the above scheme, the cutting angle adjustment range of the cutting system 4 is set to 0° to 90°. The cutting angle adjustment range refers to the range of tilt angle changes of the cutting system 4 relative to the ground. Specifically, this is achieved through the hinge structure of the support assembly and the transverse guide rail 5. The support assembly transmits the thrust of the angle adjustment cylinder 11 through the first support rod 9 and the second support rod 10 connected by the spherical bearing 12, causing the transverse guide rail 5 to rotate around the hinge point. The 0° to 90° range refers to the full angular coverage of the cutting system 4 from the vertical to the horizontal direction. This can be achieved by adjusting the extension and retraction of the support assembly to control the rotation amplitude of the transverse guide rail 5. For example, the stroke design of the angle adjustment cylinder 11 must meet the displacement required for the guide rail to rotate to a horizontal position. Specifically, the cutting system 4 achieves angle adjustment through the linkage between the support assembly and the transverse guide rail 5. When the angle adjustment cylinder 11 extends, it pushes the spherical bearing 12 to extend the first support rod 9 and the second support rod 10, causing the transverse guide rail 5 to rotate around the hinge point of the chassis mechanism 1, and the cutting system 4 tilts synchronously with the vertical guide rail 7. During adjustment, the support components maintain the stability of the transverse guide rail 5 through triangularly distributed hinge points, preventing the center of gravity from shifting. The cutting system 4 performs conventional cutting perpendicular to the ground at 0°.

[0040] In a further preferred embodiment, the support components consist of two sets, symmetrically arranged on both sides of the transverse guide rail frame 5. Each support component comprises a first strut 9, a second strut 10, and an angle-adjusting cylinder 11, used to transmit driving force and maintain the balance of the transverse guide rail frame 5. Specifically, this can be achieved by combining two sets of symmetrically distributed hinged rod systems with cylinders, ensuring the symmetry of the support forces on both sides by synchronously controlling the cylinder extension and retraction. The symmetrically arranged support components can counteract the asymmetrical torque generated during large-angle adjustments of the cutting system 4, preventing the transverse guide rail frame 5 from twisting or overturning due to unilateral force. Through the above technical solution, this application solves the problem of equipment swaying caused by insufficient unilateral support during large-angle cutting. Through the force couple balancing effect of the symmetrical support components, the cutting system 4 can maintain balanced force on the transverse guide rail frame 5 even when adjusted within the range of 0° to 90°, avoiding local stress concentration, thereby improving the overall stability and operational safety of the equipment.

[0041] In summary, the TRD construction equipment for large-angle cutting of diaphragm walls and its angle adjustment method provided in this application drive the support assembly through the angle adjustment cylinder 11 to rotate the transverse guide rail frame 5 around the hinge, thereby realizing the large-angle flexible adjustment of the cutting system 4. At the same time, the triangular arrangement of the hinge structure disperses stress, which has the advantages of expanding the cutting angle adjustment range, improving equipment stability and avoiding stress concentration.

[0042] In the description of this specification, 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 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.

[0043] 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 large-angle cutting diaphragm wall (TRD) construction equipment, comprising a chassis mechanism (1), a driver's cab (2) mounted on the chassis mechanism (1) and a hydraulic system (3), and a cutting system (4) driven by the hydraulic system (3), characterized in that, Also includes: A transverse guide rail frame (5) is hinged at its lower end to the chassis mechanism (1); A vertical guide rail frame (7) is movably mounted on the horizontal guide rail frame (5), and the cutting system (4) is mounted on the vertical guide rail frame (7); The support assembly includes a first support rod (9), a second support rod (10), and an angle adjustment cylinder (11). The bottom of the first support rod (9) is hinged to the chassis mechanism (1), and the top of the second support rod (10) is hinged to the transverse guide rail frame (5). The first support rod (9) and the second support rod (10) are connected by a joint bearing (12). The bottom of the angle adjustment cylinder (11) is hinged to the chassis mechanism (1), and its output end is connected to the joint bearing (12). The extension and retraction of the angle adjustment cylinder (11) drives the support assembly to move, thereby causing the transverse guide rail (5), the vertical guide rail (7) and the cutting system (4) to rotate as a whole around the first hinge (6), thereby adjusting the cutting angle.

2. The large-angle cutting diaphragm wall TRD construction equipment according to claim 1, characterized in that, The lower end of the transverse guide rail frame (5) is connected to the chassis mechanism (1) through the first hinge (6), and the bottom of the angle adjustment cylinder (11) is hinged to the first hinge (6); the hinge point between the first support rod (9) and the chassis mechanism (1) forms the second hinge (13), and the hinge point between the second support rod (10) and the transverse guide rail frame (5) forms the third hinge (14), and the first hinge (6), the second hinge (13) and the third hinge (14) are arranged in a triangular pattern in space.

3. The large-angle cutting diaphragm wall TRD construction equipment according to claim 1, characterized in that, The vertical guide rail frame (7) is driven to move along the horizontal guide rail frame (5) by a horizontal drive mechanism, which is a horizontal hydraulic cylinder installed on the horizontal guide rail frame (5).

4. The large-angle cutting diaphragm wall TRD construction equipment according to claim 3, characterized in that; When the cylinder shaft of the angle adjustment cylinder (11) is at its maximum output stroke, the first support rod (9) and the second support rod (10) are on the same straight line, and the cutting system (4) is in a vertical state.

5. The large-angle cutting diaphragm wall TRD construction equipment according to claim 1, characterized in that, The cutting system (4) is driven to move up and down along the vertical guide rail (7) by a lifting drive mechanism.

6. The large-angle cutting diaphragm wall TRD construction equipment according to claim 5, characterized in that, The lifting drive mechanism is a lifting cylinder mounted on the vertical guide rail frame (7).

7. The large-angle cutting diaphragm wall TRD construction equipment according to claim 2, characterized in that, The chassis mechanism (1) includes a track frame (17), and the first hinge (6) is disposed on the inner side of the track frame (17).

8. The large-angle cutting TRD construction equipment for diaphragm walls according to any one of claims 1 to 7, characterized in that, The transverse guide rail (5), the vertical guide rail (7) and the cutting system (4) are located on the side of the chassis mechanism (1), and a counterweight (18) is provided on the other side of the chassis mechanism (1).

9. The large-angle cutting diaphragm wall TRD construction equipment according to claim 1, characterized in that, The cutting angle adjustment range of the cutting system (4) is 0° to 90°.

10. The large-angle cutting diaphragm wall TRD construction equipment according to claim 1, characterized in that, The support components are in two sets, symmetrically arranged on both sides of the transverse guide rail frame (5).

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