An excavator for TRD construction method

Abstract

The present invention discloses an excavator for TRD method construction, which includes multiple groups of cutting tools. The multiple groups of cutting tools are installed on the excavator body through a bearing ring; each cutting tool is respectively connected to the bearing ring through a corresponding installation component; the installation component includes a trapezoidal groove formed on the bearing ring, a bearing plate is fixedly connected to the cutting tool, a trapezoidal block is fixedly connected to the bottom of the bearing plate, the trapezoidal block is slidably connected in the trapezoidal groove, and a locking member is arranged between the bearing plates. When it is necessary to fix the cutting tool, the trapezoidal block can be installed inside the trapezoidal groove to improve the stability during the installation of the cutting tool. Therefore, after the trapezoidal block is installed inside the trapezoidal groove. On the contrary, when the cutting tool is damaged and needs to be replaced, the trapezoidal block is unlocked, and the trapezoidal block drives the bearing plate to slide out from inside the trapezoidal groove, so that the cutting tool can be removed from the bearing ring, which is convenient for the installation and use of the cutting tool.

Description

Technical Field

[0001] The present invention relates to the technical field of construction, and specifically to an excavator for TRD method construction. Background Art

[0002] The TRD method was developed and developed in Japan in the early 1990s. It is a complete set of equipment and construction method that can continuously form a wall in various soil layers and gravel layers. Its basic principle is to use a chain saw type cutter box to vertically insert into the formation, and then make a horizontal lateral movement. At the same time, the cutter is driven by the chain to make a rotary movement up and down, stirring and mixing the original soil and pouring in cement slurry to form a wall with a certain thickness, so as to replace the columnar diaphragm walls composed of commonly used high-pressure jet grouting, single-axis and multi-axis soil-cement mixing piles at present. In the construction method, the traditional SMW method has the defect that the joints of the continuous wall are not well combined and leakage occurs; when the SMW method is used for deep foundation pit enclosure, the general depth does not exceed 20m. When it exceeds, the effect of deep mixing is extremely poor, and it is impossible to ensure the overlapping effect between piles. In addition, when the SMW method is constructed, a large amount of groundwater needs to be pumped out, resulting in extremely wasteful use of water resources; in addition, it also causes ground settlement and damages the surrounding buildings; the SMW method has relatively high noise and affects the lives of surrounding residents.

[0003] For example, a Chinese invention patent with the application number 201720817662.7 and the name of a cutter for an excavator for TRD method construction discloses a cutter for an excavator for TRD method construction, including a chain wheel and a cutter box body. Through holes are evenly opened on the chain wheel, a cutter blocking piece is fixed on the through holes, a chain is installed on the chain wheel, tool holders are evenly installed on the chain, cutters are installed at both ends of the tool holder, and the chain wheel is fixed to the cutter box body by means of a T-shaped fixing frame fixedly connected to a fixing block. The T-shaped fixing frame is fixed on the cutter box body, and the fixing block is welded on the chain wheel. An auxiliary cutter is fixed on the surface of the cutter box body, and the upper end of the cutter box body is fixed to the lower end of the hydraulic lifting mechanism of the machine body through a fixing shaft. Fixing holes are opened at the positions of the cutter box body and the hydraulic lifting mechanism of the machine body corresponding to the fixing shaft. In the above patent, it has the advantages that the excavation work is more thorough and the excavation underground is smoother. At the same time, it can avoid soil being adsorbed onto the chain wheel during the excavation process and avoid blockage inside the box body caused by the long-term operation of the chain wheel.

[0004] It is well known that an excavator usually needs to be used in cooperation with a cutting tool. The driving component on the excavator drives the tool to rotate, so as to realize the excavation operation. However, the existing tool is fixedly installed on the driving part. When the tool encounters a harder object during the excavation operation, the tool may be damaged, and it is difficult to quickly disassemble and replace the tool, affecting the use of the excavator. Summary of the Invention

[0005] The object of the present invention is to provide a digging machine for TRD construction to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a digging machine for TRD construction, comprising multiple sets of cutting tools, which are mounted on the digging machine body through supporting rings; each of the cutting tools is connected to the supporting ring through a corresponding mounting assembly; the mounting assembly comprises a trapezoidal groove provided on the supporting ring, a supporting plate is fixedly connected to the cutting tool, a trapezoidal block is fixedly connected to the bottom of the supporting plate, the trapezoidal block is slidably connected in the trapezoidal groove, and a locking member is provided between the supporting plates.

[0007] Furthermore, the locking member includes a connecting block fixedly connected to the bearing plate, a fixing plate fixedly connected to the connecting block, and a threaded rod is provided between the fixing plate and the bearing ring.

[0008] Furthermore, a threaded hole is provided on the carrying ring, and the threaded rod passes through the fixing plate and is threadedly connected to the carrying ring.

[0009] Furthermore, a clamping assembly is provided between the interior of the carrying ring and each of the carrying plates.

[0010] Furthermore, the clamping assembly includes a clamping rod vertically slidably connected to the inside of the carrying ring, and a plug-in slot is provided on the carrying plate, and the clamping rod is plugged into and matched with the plug-in slot.

[0011] Furthermore, a driving unit for driving the clamping rod to slide vertically is provided inside the carrying plate.

[0012] Furthermore, the driving unit includes a force-bearing block fixedly connected to the top of the clamping rod, and a driving block is provided inside the carrying ring, and the driving block abuts against the force-bearing block.

[0013] Furthermore, a trigger rod is fixedly connected to the force-bearing block, and a trigger block is fixedly connected to the connecting block. When the bearing plate is installed inside the trapezoidal groove, the trigger block drives the trigger rod to slide, so that the trigger rod drives the driving block to slide.

[0014] Furthermore, a return spring is provided between the force-bearing block and the carrying ring.

[0015] Furthermore, a driving member is provided inside the carrying ring, and the driving member includes two sprockets installed on the excavator, and the two sprockets are connected by a chain transmission; the excavator body is provided with a driving part for driving one of the sprockets to rotate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: For the excavator used in the TRD method construction, through the cooperation among the cutter, the bearing ring, the mounting component, the trapezoidal groove, the bearing plate and the locking member, when it is necessary to fix the cutter, the trapezoidal block can be installed inside the trapezoidal groove to improve the stability during the installation of the cutter. Therefore, after the trapezoidal block is installed inside the trapezoidal groove, the trapezoidal block is fixed by the locking member, and then the cutter can be fixed, which is convenient for the excavation operation. On the contrary, when the cutter is damaged and needs to be replaced, the trapezoidal block is unlocked, and the trapezoidal block drives the bearing plate to slide out of the trapezoidal groove, and then the cutter can be removed from the bearing ring, which is convenient for the installation and use of the cutter, thereby improving the replacement efficiency of the cutter, meeting the work requirements, and having good effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of the overall structure provided by the embodiment of the present invention;

[0019] Figure 2 Schematic diagram of another perspective of the overall structure provided by the embodiment of the present invention;

[0020] Figure 3 Schematic diagram of the driving member structure provided by the embodiment of the present invention;

[0021] Figure 4 Schematic diagram of the cutter installation method provided by the embodiment of the present invention;

[0022] Figure 5 Schematic diagram of another perspective of the cutter installation method provided by the embodiment of the present invention;

[0023] Figure 6 Schematic diagram of the cutter structure provided by the embodiment of the present invention.

[0024] Description of the reference numerals: 1, bearing ring; 2, sprocket; 3, chain; 4, cutter; 5, bearing plate; 6, connecting block; 7, fixing plate; 8, threaded rod; 9, trigger block; 10, trigger rod; 11, driving block; 12, stress block; 13, clamping rod; 14, return spring; 15, insertion slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figure 1-6 , the present invention provides a technical solution: a boring machine for TRD method construction, including a plurality of groups of cutters 4, and the plurality of groups of cutters 4 are installed on the boring machine body through a bearing ring 1; each cutter 4 is respectively connected to the bearing ring 1 through a corresponding installation component; the installation component includes a trapezoidal groove opened on the bearing ring 1, a bearing plate 5 is fixedly connected to the cutter 4, a trapezoidal block is fixedly connected to the bottom of the bearing plate 5, the trapezoidal block is slidably connected in the trapezoidal groove, and a locking member is arranged between the bearing plates 5.

[0027] Specifically, the boring machine for TRD method construction includes a plurality of groups of cutters 4. During use, the boring operation is completed by the rotation of the plurality of groups of cutters 4 to meet the requirements of the working environment. Among them, the plurality of groups of cutters 4 are installed on the boring machine body through the bearing ring 1, which is convenient for the installation and disassembly of the plurality of groups of cutters 4, and the effect is good. Among them, each cutter 4 is respectively connected to the bearing ring 1 through a corresponding installation component, which is convenient for the installation and use of the cutter 4. Among them, the installation component includes a trapezoidal groove opened on the bearing ring 1, a bearing plate 5 is fixedly connected to the cutter 4, a trapezoidal block is fixedly connected to the bottom of the bearing plate 5, and the trapezoidal block is slidably connected in the trapezoidal groove, which improves the stability of the cutter 4 during installation and is convenient for the installation and use of the cutter 4, and the effect is good. Among them, a locking member is arranged between the bearing plate 5 and the bearing ring 1. Therefore, after the trapezoidal block is installed inside the trapezoidal groove, the trapezoidal block can be fixed by the locking member, and then the cutter 4 can be fixed. On the contrary, when the cutter 4 is damaged and needs to be replaced, the trapezoidal block is unlocked, and the trapezoidal block drives the bearing plate 5 to slide out of the trapezoidal groove, and then the cutter 4 can be removed from the bearing ring 1, which is convenient for the installation and use of the cutter 4, thereby improving the replacement efficiency of the cutter 4, meeting the working requirements, and having a good effect.

[0028] The beneficial effects of the present invention are as follows: For the excavator used in the TRD construction method, through the cooperation among the cutting tool, the bearing ring, the mounting component, the trapezoidal groove, the bearing plate and the locking member, when it is necessary to fix the cutting tool, the trapezoidal block can be installed inside the trapezoidal groove to improve the stability during the installation of the cutting tool. Therefore, after the trapezoidal block is installed inside the trapezoidal groove, the trapezoidal block is fixed by the locking member, and then the cutting tool can be fixed, which is convenient for the excavation operation. On the contrary, when the cutting tool is damaged and needs to be replaced, the trapezoidal block is unlocked, and the trapezoidal block drives the bearing plate to slide out from inside the trapezoidal groove, and then the cutting tool can be removed from the bearing ring, which is convenient for the installation and use of the cutting tool, thereby improving the replacement efficiency of the cutting tool, meeting the work requirements, and having good effects.

[0029] In the embodiment provided by the present invention, the locking member includes a connecting block 6 fixedly connected to the bearing plate 5. A fixing plate 7 is fixedly connected to the connecting block 6. A threaded rod 8 is arranged between the fixing plate 7 and the bearing ring 1. Specifically, during use, by rotating the threaded rod 8, the fixing plate 7 and the bearing ring 1 are fixed, thereby improving the stability during the installation and use of the fixing plate 7 and facilitating the disassembly of the fixing plate 7.

[0030] In the embodiment provided by the present invention, a threaded hole is formed in the bearing ring 1, and the threaded rod 8 is threadedly connected to the bearing ring 1 after passing through the fixing plate 7, which is convenient for the use of the threaded rod 8. When it is necessary to disassemble the cutting tool 4, first reverse the threaded rod 8. When the threaded rod 8 slides out of the threaded hole, it can drive the fixing plate 7 to drive the connecting block 6 and the bearing plate 5 to slide out of the trapezoidal groove where they are located, which is convenient for disassembling the cutting tool 4 and has good effects.

[0031] In the embodiment provided by the present invention, a clamping component is arranged between the inside of the bearing ring 1 and each bearing plate 5. By setting the clamping component, the stability of the cutting tool 4 installed inside the bearing ring 1 can be improved again, and the effects are good.

[0032] In the embodiment provided by the present invention, the clamping component includes a clamping rod 13 vertically slidably connected to the inside of the bearing ring 1. A plugging groove 15 is formed in the bearing plate 5, and the clamping rod 13 is in plugging fit with the plugging groove 15. When the clamping rod 13 is plugged inside the plugging groove 15, the stability during the installation of the bearing plate 5 can be further improved, and the situation that the cutting tool 4 shakes during use can be avoided, and the effects are good.

[0033] In the embodiment provided by the present invention, a driving unit for driving the clamping rod 13 to slide vertically is arranged inside the bearing plate 5. By setting the driving unit, it is convenient to drive the clamping rod 13 to be plugged inside the plugging groove 15, and the effects are good.

[0034] In the embodiment provided by the present invention, the driving unit includes a force-bearing block 12 fixedly connected to the top of the clamping rod 13, and a driving block 11 is provided inside the carrying ring 1, and the driving block 11 abuts against the force-bearing block 12. Therefore, when in use, when the carrying plate 5 slides toward the inside of the trapezoidal groove, it can drive the driving block 11 to slide. More specifically, the driving block 11 and the force-bearing block 12 are both wedge-shaped blocks, and the wedge-shaped surfaces of the two wedge-shaped blocks abut. Therefore, when the driving block 11 slides, it can drive the force-bearing block 12 to slide downward, thereby driving the driving block 11 to slide downward through the force-bearing block 12, clamping the clamping rod 13 inside the plug-in slot 15, which can improve the stability of the tool 4 during use and has a good use effect.

[0035] In the embodiment provided by the present invention, a trigger rod 10 is fixedly connected to the force block 12, and a trigger block 9 is fixedly connected to the connecting block 6. When the carrying plate 5 is installed inside the trapezoidal groove, the trigger block 9 drives the trigger rod 10 to slide, so that the trigger rod 10 drives the driving block 11 to slide. More specifically, during use, when the carrying plate 5 slides toward the inside of the trapezoidal groove, it drives the trigger block 9 to slide. When the trigger block 9 slides, it can drive the trigger rod 10 to slide. Since the trigger rod 10 is fixedly connected to the driving block 11, it can drive the driving block 11 to slide. More specifically, the driving block 11 and the force block 12 are both wedge-shaped blocks, and the wedge-shaped surfaces of the two wedge blocks abut against each other. Therefore, when the driving block 11 slides, it can drive the force block 12 to slide downward, thereby driving the driving block 11 to slide downward through the force block 12, and clamping the connecting rod 13 into the inside of the plug-in slot 15, which can improve the stability of the tool 4 during use and has a good use effect.

[0036] In the embodiment provided by the present invention, a return spring 14 is provided between the force block 12 and the carrying ring 1, wherein when the tool 4 needs to be disassembled, the threaded rod 8 is first reversed, and when the threaded rod 8 slides out of the threaded hole, the fixing plate 7 can be driven to drive the connecting block 6 and the carrying plate 5 to slide out of the trapezoidal groove where they are located. At the same time, when the trigger block 9 is not in contact with the trigger rod 10, the return spring 14 restores its elastic deformation and drives the force block 12 to slide upward, thereby driving the driving block 11 to slide, and finally realizing that the force block 12 drives the plug-in rod to slide out of the plug-in groove 15 where it is located, thereby releasing the restriction on the carrying plate 5, facilitating the disassembly of the carrying plate 5, and having a good effect.

[0037] In the embodiment provided by the present invention, a driving member is provided inside the supporting ring 1, and the driving member includes two sprockets 2 installed on the excavator, and the two sprockets 2 are connected by a chain 3; a driving part for driving one of the sprockets 2 to rotate is provided on the excavator body, and specifically, the driving part is a driving motor.

[0038] Working principle: When the bearing plate 5 slides into the trapezoidal groove, it can drive the driving block 11 to slide. More specifically, both the driving block 11 and the stress block 12 are wedge-shaped blocks, and the wedge surfaces of the two wedge-shaped blocks are in contact. Therefore, when the driving block 11 slides, it can drive the stress block 12 to slide downward, and then drive the driving block 11 to slide downward through the stress block 12, so that the clamping rod 13 is clamped inside the insertion slot 15, which can improve the stability of the tool 4 during use and has a good use effect. When the bearing plate 5 slides into the trapezoidal groove, it drives the trigger block 9 to slide. When the trigger block 9 slides, it can drive the trigger rod 10 to slide. Since the trigger rod 10 is fixedly connected to the driving block 11, it can drive the driving block 11 to slide. More specifically, both the driving block 11 and the stress block 12 are wedge-shaped blocks, and the wedge surfaces of the two wedge-shaped blocks are in contact. Therefore, when the driving block 11 slides, it can drive the stress block 12 to slide downward, and then drive the driving block 11 to slide downward through the stress block 12, so that the clamping rod 13 is clamped inside the insertion slot 15, which can improve the stability of the tool 4 during use and has a good use effect. When it is necessary to disassemble the tool 4, first reverse the threaded rod 8. When the threaded rod 8 slides out of the threaded hole, the fixing plate 7 can be driven to drive the connecting block 6 and the bearing plate 5 to slide out of the trapezoidal groove where they are located. At the same time, when the trigger block 9 is not in contact with the trigger rod 10, during the process of the return spring 14 restoring its elastic deformation, it drives the stress block 12 to slide upward, so that the driving block 11 can be driven to slide. Finally, the stress block 12 drives the insertion rod to slide out of the insertion slot 15 where it is located, releasing the restriction on the bearing plate 5 and facilitating the disassembly of the bearing plate 5, with a good effect.

[0039] It should be noted that the electrical equipment involved in this application can be powered by a storage battery or an external power supply.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting machine for TRD construction, comprising a plurality of sets of cutting tools (4), characterized in that: A plurality of sets of cutting tools (4) are mounted on the excavator body via a carrying ring (1); Each of the cutting tools (4) is connected to the carrying ring (1) via a corresponding mounting assembly; The mounting assembly comprises a trapezoidal groove formed on a carrying ring (1); a carrying plate (5) is fixedly connected to the tool (4); a trapezoidal block is fixedly connected to the bottom of the carrying plate (5); the trapezoidal block is slidably connected in the trapezoidal groove; a locking member is provided between the carrying ring (1) and the carrying plate (5); The locking member comprises a connecting block (6) fixedly connected to the bearing plate (5), a fixing plate (7) fixedly connected to the connecting block (6), and a threaded rod (8) is provided between the fixing plate (7) and the bearing ring (1); A clamping assembly is provided between the interior of the carrying ring (1) and each of the carrying plates (5); The clamping assembly comprises a clamping rod (13) vertically slidably connected to the inside of the carrying ring (1); a plug-in slot (15) is provided on the carrying plate (5); the clamping rod (13) is plugged into and matched with the plug-in slot (15); A driving unit for driving the clamping rod (13) to slide vertically is provided inside the carrying plate (5); The driving unit comprises a force-bearing block (12) fixedly connected to the top of the clamping rod (13); a driving block (11) is provided inside the carrying ring (1); the driving block (11) abuts against the force-bearing block (12); A trigger rod (10) is fixedly connected to the driving block (11), and a trigger block (9) is fixedly connected to the connecting block (6); when the carrying plate (5) is installed inside the trapezoidal groove, the trigger block (9) drives the trigger rod (10) to slide, so that the trigger rod (10) drives the driving block (11) to slide; The driving block (11) and the force-bearing block (12) are both wedge-shaped blocks, and the wedge-shaped surfaces of the two wedge-shaped blocks are in contact with each other.

2. The cutting machine for TRD method construction according to claim 1, characterized in that: A threaded hole is provided on the carrying ring (1), and the threaded rod (8) passes through the fixing plate (7) and is threadedly connected to the carrying ring (1).

3. The cutting machine for TRD method construction according to claim 1, characterized in that: A return spring (14) is provided between the force-bearing block (12) and the bearing ring (1).

4. A boring machine for TRD method construction according to claim 1, characterized in that: A driving member is provided inside the carrying ring (1), and the driving member comprises two sprockets (2) mounted on the excavator, and the two sprockets (2) are connected in transmission via a chain (3).

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