Shield tunneling machine

Abstract

The utility model discloses a shield tunneling machine, and belongs to the technical field of shield tunneling machines. According to the technical scheme, the shield tunneling machine comprises a shield tunneling machine body, a positioning disc is arranged on one side of the shield tunneling machine body, a plurality of cutters are arranged on the side, away from the shield tunneling machine body, of the positioning disc, cutter edges are arranged on the sides, away from the positioning disc, of the cutters, and the cutters are connected with the positioning disc through detachable assemblies. The tool has the advantages that in the working process, when one tool body is damaged and cannot be used, the tool body can be independently detached and replaced through the detachable assembly, the whole tool body does not need to be scrapped, and user loss and cost loss are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shield tunneling, in particular to a shield tunneling machine. Background Art

[0002] The full name of the shield machine is the shield tunnel boring machine. It is a special engineering machinery for tunnel excavation. After continuous improvement and development, it has become the most advanced underground tunnel boring machine in the world. At present, the application of shield machines in underground engineering construction is becoming more and more extensive. When the shield machine is excavating, the leading cutter on the shield machine cutter head needs to pre-loosen the rock first, so as to facilitate the further excavation of various subsequent cutters.

[0003] The publication number is CN210977487U, which discloses a center cutter of a shield machine. The device uses bolts to install the cutter disc on the top of the shield machine through threaded holes, and then installs various components. Then the shield machine is started, at which time the entire cutter disc rotates, and the rotating edge cutter located on the front of the protective disc is used to crush stones. The entire protective disc rotates, and the pull rope spring is used to relieve the vibration of the clamping sleeve, thereby alleviating the vibration of the protective disc. Once the rotating edge cutter collapses, it is only necessary to loosen the fixed shaft, detach the protective disc located on the outside from the inside of the clamping sleeve, and replace it with a new protective disc.

[0004] Since the cutter of the shield machine is easy to come into contact with hard objects during the excavation process, the friction between the cutter and the hard object may easily cause it to be damaged and need to be replaced. However, in the prior art, the cutter and the cutterhead are both integrated structures, which means that the entire cutter can only be replaced or scrapped, which will cause great cost losses to users and is not conducive to promotion and use. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that when part of the cutting tools are damaged, the cutting tools can only be completely replaced and scrapped, which will cause great cost loss to the user and is not conducive to popularization and use. A shield machine that is easy to replace the cutting tools separately is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A shield machine comprises a shield machine body, a positioning plate is arranged on one side of the shield machine body, a plurality of cutting tools are arranged on the side of the positioning plate away from the shield machine body, a cutting edge is arranged on the side of the plurality of cutting tools away from the positioning plate, and the plurality of cutting tools and the positioning plate are connected through a detachable component. The utility model can fix the cutting tool on the positioning plate through the detachable component, and the positioning plate and the cutting tool are driven to work together through the shield machine body. When a cutting tool body is damaged and cannot be used, the detachable component can be used to disassemble and replace it separately, without the need to scrap all of them, thereby reducing the loss of users and costs.

[0008] Furthermore, the detachable component includes a through hole arranged on the top surface of the tool and a circular groove arranged on the side wall of the positioning disk, the through hole is connected to the circular groove, a card slot is arranged on the side of the circular groove away from the through hole, the inner diameter of the card slot is larger than the inner diameter of the circular groove, a slide rod is arranged to slide in the through hole, a card block is arranged at the outer extension position of the bottom end of the slide rod, and the through hole is connected to the inner wall of the circular groove to arrange a slide slot for the card block to slide. This structure uses the slide rod to send the card block into the card slot so that the tool and the positioning disk are fixed, first the card block is inserted into the slide slot, the slide rod is pressed to make the card block and the slide rod slide in the direction of the card slot until the card block enters the inside of the card slot, and then the slide rod is rotated to stagger the card block and the card slot, so as to achieve the fixation of the tool and the positioning disk.

[0009] Furthermore, the detachable component also includes a spring disposed in the slot, one end of the spring being fixedly connected to the inner wall of the slot, and the other end being fixedly connected to the pressure block, and the pressure block is slidably connected to the slot. This structure can facilitate the operator to remove the slide bar and the card block through the reset function of the spring. When in use, the operator rotates the slide bar to drive the card block to rotate in the slot. When the card block rotates to overlap with the slot, the spring reset will drive the pressure block to move toward the tool direction, thereby squeezing the card block into the slot.

[0010] Furthermore, a rotating disk is fixedly arranged at one end of the slide bar away from the through hole, the diameter of the rotating disk is larger than the inner diameter of the through hole, and a rotating block is fixedly arranged at one side of the rotating disk away from the slide bar. This structure facilitates the operator to rotate the slide bar, and when in use, the operator twists the rotating block, thereby driving the rotating disk and the slide bar to rotate, and at the same time, the rotating disk can also limit the slide bar from moving in the direction of the slot.

[0011] Furthermore, a flushing assembly is also provided inside the shield machine body, and the flushing assembly includes a water tank fixedly provided on the inner wall of the shield machine body, a connecting pipe is provided on the side of the water tank close to the tool, and the other end of the connecting pipe is fixedly connected to the drain pipe, and the drain pipe is fixedly surrounded on the side of the water tank close to the tool, and a water collecting bin is also provided on the side of the water tank close to the tool, and a groove for the water supply and drainage pipe and the water collecting bin to pass through is provided on the side of the positioning plate away from the tool, and a nozzle is fixedly provided on the side of the water collecting bin away from the positioning plate, and a branch pipe is provided in communication with the side wall of the drain pipe, and the other end of the branch pipe is connected to the water collecting bin, and a water pump is provided in the water tank, and the water outlet end of the water pump is fixedly connected to the drain pipe. During the working process of this structure, the tool can be cooled by the flushing assembly to increase the service life of the tool, and at the same time, the soil can be softened, thereby increasing the service life of the tool. When in use, the water in the water tank is sent into the drain pipe by the water pump, and then enters the water collecting bin through the branch pipe, and then sprayed to the outside through the nozzle, so as to cool the tool and the blade, increase the service life of the tool and the blade, and at the same time, the surrounding soil can be softened to improve the excavation work efficiency.

[0012] Furthermore, a metal protective net is fixedly arranged on the inner wall of the positioning plate, and the nozzle is located on the side of the metal protective net away from the tool. This structure can protect the nozzle through the protective net, and can prevent foreign objects and soil from clogging it during excavation.

[0013] Furthermore, a placement hole is provided on the side of the cutter away from the positioning plate, an electric push rod is fixedly provided in the placement hole, and the output end of the electric push rod is fixedly connected to the side of the cutter edge close to the cutter. This structure can adjust the position of the cutter edge through the electric push rod, which can ensure the efficiency when using the device for excavation. At the same time, when the device is not in use, it is convenient for the staff to clean the soil, thereby facilitating the increase of the contact area during excavation when dealing with soft soil.

[0014] It can be seen from the above technical solutions that the advantages of the utility model are:

[0015] 1. During the operation of the utility model, the tool can be cooled by the flushing component to increase the service life of the tool. At the same time, when a tool body is damaged and cannot be used, the detachable component can be disassembled and replaced separately without the need to scrap all of them, thereby reducing the loss of users and costs.

[0016] 2. The utility model can adjust the position of the blade through an electric push rod, which can ensure the efficiency when using the device for excavation. At the same time, the device is convenient for workers to clean the soil when not in use, thereby increasing the contact area during excavation when dealing with soft soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a specific implementation method of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of a positioning plate according to a specific implementation mode of the utility model;

[0020] Figure 3 For the specific implementation of the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 This is a schematic diagram of the water storage tank structure of a specific implementation method of the utility model;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the shield machine body according to a specific implementation mode of the utility model;

[0023] Figure 6 It is a schematic diagram of the knife edge structure of a specific implementation method of the utility model.

[0024] The reference numerals are as follows:

[0025] 1. Shield machine body; 2. Positioning plate; 3. Cutter; 4. Slot; 5. Spring; 6. Pressure plate; 7. Slide bar; 8. Block; 9. Rotating plate; 10. Water tank; 11. Connecting pipe; 12. Drain pipe; 13. Water collection bin; 14. Nozzle; 15. Placement hole; 16. Electric push rod; 17. Knife edge. DETAILED DESCRIPTION

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

[0027] like Figure 1-6 As shown, it relates to a shield machine, including a shield machine body 1, specifically: a positioning plate 2 is arranged on one side of the shield machine body, a plurality of cutters 3 are arranged on the side of the positioning plate 2 away from the shield machine body, a cutting edge 17 is arranged on the side of the cutters 3 away from the positioning plate 2, the cutters 3 are connected to the positioning plate 2 through a detachable component, a flushing component is arranged inside the shield machine body, a placement hole 15 is arranged on the side of the cutter 3 away from the positioning plate 2, an electric push rod 16 is fixedly arranged in the placement hole 15, and the output end of the electric push rod 16 is fixedly connected to the side of the cutting edge 17 close to the cutter 3. When the device is in use, the shield machine body 1 will drive the positioning plate 2 and the cutter 3 to work together. The position of the cutting edge 17 can be adjusted by the electric push rod 16, which can ensure the efficiency of excavation when the device is used. At the same time, the device is convenient for the staff to clean the soil when not in use, so as to increase the contact area during excavation when dealing with soft soil. During operation, the cutter 3 can be cooled by the flushing component to increase the service life of the cutter 3. At the same time, the detachable component can be used to disassemble and replace a cutter 3 when the cutter body is damaged and cannot be used, without the need for all of them to be scrapped, thereby reducing the loss of users and costs.

[0028] like Figure 2~3As shown, the detachable component includes a through hole arranged on the top surface of the tool 3 and a circular groove arranged on the side wall of the positioning disk 2, the through hole is connected with the circular groove, and the circular groove is connected with a slot 4 away from the through hole, the inner diameter of the slot 4 is larger than the inner diameter of the circular groove, a slide bar 7 is slidably arranged in the through hole, a block 8 is arranged at the outer position of the bottom end of the slide bar 7, the through hole is connected with the inner wall of the circular groove to set a slide groove for the block 8 to slide, a spring 5 is fixedly arranged in the slot 4, one end of the spring 5 is fixedly connected to the inner wall of the slot 4, and the other end is fixedly connected to the pressure block, the pressure block is slidably connected to the slot 4, a rotating disk 9 is fixedly arranged at one end of the slide bar 7 away from the through hole, the diameter of the rotating disk 9 is larger than the inner diameter of the through hole, and the rotating disk 9 is away from the side of the slide bar 7 The rotating block is fixedly set. When the tool 3 and the positioning disk 2 need to be fixed, the operator aligns the block 8 with the slide slot, presses the rotating disk 9 to make the slide bar 7 and the block 8 slide in the direction of the slot 4 until the block 8 enters the slot 4, and twists the rotating block. The rotating block drives the slide bar 7 and the block 8 to rotate, so that the block 8 and the slot 4 are staggered to achieve the fixation of the tool 3 and the positioning disk 2. When the tool 3 needs to be replaced, it is only necessary to twist the rotating block. During the twisting process, the slide bar 7 and the block 8 will rotate together. When the position of the block 8 coincides with the slot 4, the spring 5 will push the pressure plate 6 to push the block 8 to slide into the slot 4, and the operator only needs to take it out.

[0029] like Figures 4 and 5 As shown, the flushing component includes a water tank 10 fixedly arranged on the inner wall of the shield machine body, a connecting pipe 11 is arranged on the side of the water tank 10 close to the tool 3, and the other end of the connecting pipe 11 is fixedly connected to the drain pipe 12, and the drain pipe 12 is fixedly surrounded on the side of the water tank 10 close to the tool 3. A water collecting bin 13 is also arranged on the side of the water tank 10 close to the tool 3, a groove for the drainage pipe 12 and the water collecting bin 13 to pass through is arranged on the side of the positioning plate 2 away from the tool 3, a nozzle 14 is fixedly arranged on the side of the water collecting bin 13 away from the positioning plate 2, a branch pipe is connected to the side wall of the drain pipe 12, and the other end of the branch pipe is connected to the water collecting bin 13, a water pump is arranged in the water tank 10, and the water outlet end of the water pump is fixedly connected to the drain pipe 12, a metal protective net is fixedly arranged on the inner wall of the positioning plate 2, and the nozzle 14 is located on the side of the metal protective net away from the tool 3. When the structure is in use, the water in the water tank 10 will be sprayed to the outside, which can cool the tool 3 and the blade 17 during the working process, thereby increasing the service life of the tool 3 and the blade 17, and at the same time soften the surrounding soil, thereby increasing the excavation efficiency of the tool 3.

[0030] The method of using the utility model is as follows: when the device is used, the tool 3 and the positioning disk 2 are first fixed by the detachable connecting assembly, the block 8 is aligned with the slide slot, the rotating disk 9 is pressed to make the slide bar 7 and the block 8 slide in the direction of the slot 4, until the block 8 enters the slot 4, the rotating block is twisted, and the rotating block drives the slide bar 7 and the block 8 to rotate, so that the block 8 and the slot 4 are staggered, so that the tool 3 and the positioning disk 2 are fixed. During the working process, the water pump is started, and the water pump sends the water in the water storage tank 10 into the drain pipe 12, and then into the water collection bin 13 through the branch pipe, and is sprinkled out through the nozzle 14, so as to cool the tool 3 and the blade 17 and soften the surrounding soil at the same time; during the working process, the electric push rod 16 can be adjusted according to the temperature of the water tank 10. The position of the blade 17 can be adjusted according to the situation, so as to ensure the efficiency of excavation when the device is used. At the same time, the device is convenient for the staff to clean the soil when not in use, so as to increase the contact area during excavation when dealing with soft soil. When the tool 3 needs to be replaced due to a malfunction or other reasons, the operator only needs to twist the rotating disk 9 through the rotating block. During the twisting process, the slide bar 7 and the block 8 will rotate together. When the position of the block 8 coincides with the slot 4, the spring 5 pushes the pressure plate 6 to move toward the tool 3, thereby pushing the block 8 into the slot 4, and the operator can take it out. After disassembly, the new tool 3 is placed on the positioning disk 2 and the above steps of fixing the tool 3 and the positioning disk 2 are repeated.

[0031] It can be seen from the above embodiments that the beneficial effects of the utility model are: during operation, the tool 3 can be cooled by the flushing component to increase the service life of the tool 3. At the same time, the detachable component can be used to disassemble and replace a tool 3 when the tool body is damaged and cannot be used, without the need to scrap all of them, thereby reducing the loss of users and costs.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A shield machine, comprising a shield machine body (1), characterized in that: A positioning plate (2) is arranged on one side of the shield machine body (1); a plurality of cutting tools (3) are arranged on a side of the positioning plate (2) away from the shield machine body (1); a cutting edge (17) is arranged on a side of the plurality of cutting tools (3) away from the positioning plate (2); and the plurality of cutting tools (3) are connected to the positioning plate (2) via a detachable component; The detachable component comprises a through hole arranged on the top surface of the tool (3) and a circular groove arranged on the side wall of the positioning plate (2), the through hole being connected to the circular groove, the circular groove being connected to a slot (4) arranged on a side away from the through hole, the inner diameter of the slot (4) being larger than the inner diameter of the circular groove, a slide bar (7) being slidably arranged in the through hole, a block (8) being arranged at an extended position at the bottom end of the slide bar (7), the through hole being connected to the inner wall of the circular groove to form a slide groove for the block (8) to slide; the detachable component also comprises a spring (5) arranged in the slot (4), one end of the spring (5) being fixedly connected to the inner wall of the slot (4), the other end of the spring (5) being fixedly connected to a pressure block, and the pressure block being slidably connected to the slot (4).

2. A shield machine according to claim 1, characterized in that: A rotating disk (9) is fixedly arranged at one end of the slide bar (7) away from the through hole, the diameter of the rotating disk (9) is larger than the inner diameter of the through hole, and a rotating block is fixedly arranged at one side of the rotating disk (9) away from the slide bar (7).

3. A shield machine according to claim 1, characterized in that: A flushing assembly is arranged inside the shield machine body (1), and the flushing assembly comprises a water storage tank (10) fixedly arranged on the inner wall of the shield machine body (1); a connecting pipe (11) is arranged on the side of the water storage tank (10) close to the tool (3); the other end of the connecting pipe (11) is fixedly connected to a drainage pipe (12); the drainage pipe (12) is fixedly surrounded on the side of the water storage tank (10) close to the tool (3); a water collection bin (13) is also arranged on the side of the water storage tank (10) close to the tool (3); a groove for the drainage pipe (12) and the water collection bin (13) to pass through is arranged on the side of the positioning plate (2) away from the tool (3); a nozzle (14) is fixedly arranged on the side of the water collection bin (13) away from the positioning plate (2); a branch pipe is arranged on the side wall of the drainage pipe (12); the other end of the branch pipe is connected to the water collection bin (13); a water pump is arranged in the water storage tank (10); the water outlet end of the water pump is fixedly connected to the drainage pipe (12).

4. A shield machine according to claim 3, characterized in that: A metal protective net is fixedly arranged on the inner wall of the positioning plate (2), and the nozzle (14) is located on a side of the metal protective net away from the tool (3).

5. A shield machine according to claim 1, characterized in that: A placement hole (15) is provided on the side of the tool (3) away from the positioning plate (2), an electric push rod (16) is fixedly provided in the placement hole (15), and an output end of the electric push rod (16) is fixedly connected to a side of the blade (17) close to the tool (3).

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