Shield cutter head flushing device and shield machine

Abstract

The present invention provides a shield cutter head flushing device and a shield machine, which relate to the technical field of shield equipment, and to optimize the cutter head structure to a certain extent, reduce the formation of caking layers during the operation process, thereby reducing the risks of the equipment having a decrease in operating efficiency, an increase in cleaning costs, and even equipment damage. The shield cutter head flushing device provided by the present invention includes a cutter head mechanism and a flushing mechanism; the cutter head mechanism includes a cutter head body, two first convex blocks and at least one second convex block, the two first convex blocks are symmetrically distributed on both sides of the second convex block, and an arc-shaped channel is formed between the adjacent first convex block and the second convex block; the flushing mechanism includes a flushing member, a branch pipe and a main pipe, the flushing member is arranged on the side of the first convex block and the second convex block close to the channel, and the flushing member is connected to the main pipe through the branch pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of shield equipment structures, and particularly to a shield cutter head flushing device and a shield machine. Background Art

[0002] In the field of construction machinery, especially in the shield machine disk structure equipment for operations such as earth excavation and ore mining, the traditional disk is usually designed with a groove structure to accommodate or guide impurities such as sand, mud, etc. generated during the operation.

[0003] However, in practical applications, such structures have significant defects: due to the influence of gravity and fluidity, the mixtures of sand, gravel, mud, etc. generated during the operation are prone to converge towards the grooves along the disk surface and gradually deposit. As the operation time prolongs, the soil and sand accumulated in the grooves form a viscous mixture under the action of moisture, resulting in strong adhesion between the sand particles and the groove wall surface, and finally forming a hard crust layer. This hard crust layer is extremely difficult to clean, leading to a decrease in the operating efficiency of the equipment, an increase in the cleaning cost, and even possible damage to the equipment.

[0004] Therefore, there is an urgent need to provide a shield cutter head flushing device and a shield machine to solve the problems existing in the prior art to a certain extent. Summary of the Invention

[0005] The purpose of the present invention is to provide a shield cutter head flushing device and a shield machine to optimize the cutter head structure to a certain extent, reduce the formation of the hard crust layer during the operation, thereby reducing the risks of decreased operating efficiency, increased cleaning cost, and even equipment damage of the equipment.

[0006] A shield cutter head flushing device provided by the present invention includes a cutter head mechanism and a flushing mechanism; the cutter head mechanism includes a cutter head body, two first protrusions, and at least one second protrusion, the two first protrusions are symmetrically distributed on both sides of the second protrusion, and an arc-shaped channel is formed between the adjacent first protrusion and the second protrusion; the flushing mechanism includes a flushing member, a branch pipe, and a main pipe, the flushing member is arranged on the side of the first protrusion and the second protrusion close to the channel, and the flushing member is connected to the main pipe through the branch pipe;

[0007] The middle part of the cutter head body protrudes, and the height gradually decreases from the middle part to the outside; the cutter head body is formed with a hollowed-out part corresponding to the positions of the first protrusion and the second protrusion, the shape of the hollowed-out part is adapted to the shapes of the first protrusion and the second protrusion, and the size of the hollowed-out part is smaller than the sizes of the first protrusion and the second protrusion.

[0008] As an alternative, the cross-section of the first bump is fan-shaped, and the first bump includes a first base block and a first fixing block. A first long groove is formed at the edge of the first base block, and the first fixing block is installed in the first long groove; the cross-section of the second bump is hourglass-shaped, and the second bump includes a second base block and a second fixing block. A second long groove is formed at the edge of the second base block, and the second fixing block is installed in the second long groove; a plurality of mounting grooves are formed on both the first fixing block and the second fixing block, and the flushing member is correspondingly arranged in the mounting grooves.

[0009] As an alternative, the flushing member includes a cover body and a nozzle. The mounting groove includes a deep groove. A slot hole is formed at the bottom surface of the deep groove, and a limiting groove is provided on the vertical inner wall; the cover body is arranged in the deep groove. One end of the nozzle is connected to the branch pipe, and the other end passes through the cover body through the slot hole and forms a water spraying port; the cover body forms a plugging portion, and the plugging portion is inserted into the limiting groove for setting.

[0010] As an alternative, the flushing member further includes a cutter head, a guide post and a first elastic member. The nozzle includes an outer tube body, an inner tube body, a second elastic member, a valve body and a movable tube; the cover body forms a rectangular groove communicating with the deep groove, and the cutter head is fixed in the rectangular groove. The cutter head forms an inclined surface and a guide hole. The guide post is slidably connected with the guide hole, and one end of the guide post protrudes from the surface of the cutter head, and the other end abuts against the cover body; the water spraying port is formed at one end of the inner tube body. The outer tube body is sleeved outside the inner tube body, and the movable tube is located between the inner tube body and the outer tube body; the first elastic member is located between the cover body and the top end of the movable tube. The second elastic member is sleeved on one end of the inner tube body passing through the movable tube, and the second elastic member is located between the bottom end of the movable tube and the bottom of the inner cavity of the outer tube body; a flow channel is formed inside the inner tube body, and the flow channel is conical. The valve body is arranged in the flow channel, and the movable tube can drive the valve body to move in the flow channel to open or close the flow channel.

[0011] As an alternative, a first hob is further included. A plurality of first assembly grooves are formed on the first base block. The first hob is arranged corresponding to the first base block one by one, and the first hob is embedded in the first assembly groove.

[0012] As an alternative, a first cutter body is further included. A second assembly groove is further formed on the first base block, and the first cutter body is embedded in the second assembly groove.

[0013] As an alternative, it further includes a second hob. A plurality of third assembly grooves are formed on the second base block. The second hob is provided in one-to-one correspondence with the second base block, and the second hob is embedded in the third assembly groove.

[0014] As an alternative, it further includes a second tool body. A fourth assembly groove is further formed on the second base block. The second tool body is embedded in the fourth assembly groove.

[0015] Compared with the prior art, the shield cutter head flushing device provided by the present invention has the following advantages:

[0016] The shield cutter head flushing device provided by the present invention includes a cutter head mechanism and a flushing mechanism. The cutter head mechanism includes a cutter head body, two first convex blocks and at least one second convex block. The two first convex blocks are symmetrically distributed on both sides of the second convex block, and an arc-shaped channel is formed between the adjacent first convex block and the second convex block. The flushing mechanism includes a flushing member, a branch pipe and a main pipe. The flushing member is arranged on the side of the first convex block and the second convex block close to the channel, and the flushing member is connected to the main pipe through the branch pipe.

[0017] From the above analysis, it can be seen that during the excavation process, the stone debris generated and the muddy water generated by flushing are discharged downward through the arc-shaped channel. During the rotation of the cutter head body, there will be a situation where the two openings of one arc-shaped channel face downward or upward at the same time. When one arc-shaped channel faces downward at the same time, the sand and muddy water converged in the channel are discharged downward along the two openings. When facing upward at the same time, the generated sand and muddy water converge towards the bending part, so that they can be quickly discharged when rotating to face downward.

[0018] It can be understood that through the two formed arc-shaped channels, it is convenient to realize the convergence of muddy water and sand. The centrifugal force generated during the rotation process can also promote the discharge of sand and muddy water, thus solving the problem that in the traditional disk structure, the sand and muddy water generated during the excavation process converge to the groove of the disk surface. As the soil increases, the sand adheres together, so that the sand and soil inside the groove stick to the groove to form a hardening layer, which is not convenient to clean, affecting the equipment operation efficiency, cleaning cost and damage.

[0019] In addition, the present invention also provides a shield machine including the above-mentioned shield cutter head flushing device.

[0020] The shield machine adopting the shield cutter head flushing device provided by the present application can discharge sand and mud during the operation process, thus avoiding the formation of a hardening layer in the groove to a certain extent, and being able to ensure the stable operation of the equipment to a certain extent. At the same time, it reduces the difficulty and cost of cleaning the cutter head after stopping the operation, and ensures the operation efficiency of the equipment during operation. Description of the Drawings

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 Structural schematic diagram of the shield cutter head flushing device provided by the embodiment of the present invention;

[0023] Figure 2 Partial structural schematic diagram of the cutter head structure in the shield cutter head flushing device provided by the embodiment of the present invention;

[0024] Figure 3 Structural schematic diagram of the first convex block in the shield cutter head flushing device provided by the embodiment of the present invention;

[0025] Figure 4 Side view schematic diagram of the first convex block of the shield cutter head flushing device provided by the embodiment of the present invention;

[0026] Figure 5 For the present invention Figure 4 Schematic diagram of the A-A section;

[0027] Figure 6 For the present invention Figure 5 Enlarged schematic diagram at C;

[0028] Figure 7 Exploded schematic diagram of the first convex block in the shield cutter head flushing device provided by the embodiment of the present invention;

[0029] Figure 8 Exploded schematic diagram of the second convex block in the shield cutter head flushing device provided by the embodiment of the present invention;

[0030] Figure 9 Schematic diagram of the water supply pipeline of the shield cutter head flushing device provided by the embodiment of the present invention;

[0031] Figure 10 Back view schematic diagram of the cutter head in the shield cutter head flushing device provided by the embodiment of the present invention;

[0032] Figure 11 Schematic diagram of the first fixing block in the shield cutter head flushing device provided by the embodiment of the present invention;

[0033] Figure 12 Exploded schematic diagram of the flushing part in the shield cutter head flushing device provided by the embodiment of the present invention;

[0034] Figure 13Exploded view of the nozzle in the shield cutter head flushing device provided by the embodiment of the present invention;

[0035] Figure 14 For the present invention Figure 13 Schematic cross-sectional view taken along line B-B in it.

[0036] In the figure: 1 - cutter head body; 101 - cutter head surface; 102 - hollowed-out part; 2 - first convex block; 201 - first long groove; 202 - first assembly groove; 203 - second assembly groove; 204 - first step surface; 3 - second convex block; 301 - second long groove; 302 - third assembly groove; 303 - fourth assembly groove; 304 - second step surface; 4 - first cutter body; 5 - first hob; 6 - first fixing block; 601 - deep groove; 602 - slot hole; 603 - limiting groove; 604 - rectangular groove; 7 - second fixing block; 8 - flushing part; 801 - nozzle; 8011 - outer tube body; 8012 - nut; 8013 - movable tube; 8014 - second elastic member; 8015 - valve body; 8016 - inner tube body; 8017 - strip-shaped groove; 8018 - water spraying port; 8019 - flow channel; 802 - cutter head; 8021 - inclined surface; 8022 - guide hole; 803 - cover body; 8031 - inserting part; 804 - first elastic member; 805 - guide post; 9 - branch pipe; 10 - main pipe; 11 - second hob; 12 - second cutter body. Detailed implementation manners

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some, rather than all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0038] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0039] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0040] In the description of the embodiments of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "couple" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0041] As used herein, the term "and / or" includes any one of the listed related items and any combination of any two or more of them.

[0042] For ease of description, spatial relationship terms such as "above...", "upper part", "below...", and "lower part" can be used here to describe the relationship between one element and another as shown in the drawings. Such spatial relationship terms are intended to include different orientations of the device during use or operation in addition to the orientation depicted in the drawings.

[0043] The terms used herein are only for describing various examples and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. The terms "comprise", "include" and "have" enumerate the stated features, quantities, operations, components, elements and / or combinations thereof that exist, but do not preclude the existence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof.

[0044] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Accordingly, the examples described herein are not limited to the specific shapes shown in the drawings, but include changes in shape that occur during manufacturing.

[0045] The features of the examples described herein can be combined in various ways that will be apparent after understanding the disclosure of this application. In addition, although the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of this application. Additionally, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or inability to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0046] As Figure 1 shown in combination with Figure 2 and Figures 9 - 11 shown, the present invention provides a shield cutter head flushing device, comprising a cutter head mechanism and a flushing mechanism; the cutter head mechanism includes a cutter head body 1, two first bumps 2 and at least one second bump 3, the two first bumps 2 are symmetrically distributed on both sides of the second bump 3, and an arc-shaped channel is formed between the adjacent first bump 2 and the second bump 3; the flushing mechanism includes a flushing member 8, a branch pipe 9 and a main pipe 10, the flushing member 8 is arranged on the side of the first bump 2 and the second bump 3 close to the channel, and the flushing member 8 is connected to the main pipe 10 through the branch pipe 9.

[0047] Compared with the prior art, the shield cutter head flushing device provided by the present invention has the following advantages:

[0048] In the shield cutter head flushing device provided by the present invention, during the excavation process, the stone debris generated and the muddy water generated by flushing are discharged downward through the arc-shaped channel. During the rotation of the cutter head body 1, there will be a situation where the two openings of one arc-shaped channel face downward or upward simultaneously. When one arc-shaped channel faces downward simultaneously, the sand and muddy water converged in the channel are discharged downward along the two openings, and when facing upward simultaneously, the generated sand and muddy water converge towards the bending part, so that they can be quickly discharged when rotating to face downward.

[0049] It can be understood that through the two formed arc-shaped channels, it is convenient to realize the convergence of muddy water and sand and gravel. The centrifugal force generated during the rotation process can also promote the discharge of sand and gravel and muddy water, thus solving the problem of the traditional structure of the disk surface 101, where sand and gravel and muddy water generated during excavation converge at the groove of the disk surface 101. As the soil increases, the sand and gravel stick together, causing the sand and soil inside the groove to adhere to the groove to form a caking layer, which is not convenient for cleaning and affects the operation efficiency, cleaning cost, and damage of the equipment.

[0050] In addition, the flushing parts 8 are arranged regularly on the surface of the cutter head body 1. By increasing the water outlet points, it is convenient to realize the mixing of the excavated sand and gravel with water, improve the fluidity of the sand and gravel after excavation, and facilitate the convergence of sand and gravel and muddy water.

[0051] As an optional way, the middle part of the cutter head body 1 in this application protrudes, and the height gradually decreases from the middle to the outside; the cutter head body 1 is formed with a hollow part 102 corresponding to the positions of the first convex block 2 and the second convex block 3. The shape of the hollow part 102 is adapted to the shapes of the first convex block 2 and the second convex block 3, and the size of the hollow part 102 is smaller than the sizes of the first convex block 2 and the second convex block 3.

[0052] Through the formed hollow part 102, the overall weight of the cutter head body 1 can be effectively reduced, and the materials used can be reduced, thereby reducing the manufacturing cost.

[0053] In addition, after the middle part of the disk surface 101 bulges outwards to form an arc-shaped channel, the channel in the middle area is higher than the height of the two side outlet positions, which can promote the discharge of the excavated sand and gravel and muddy water to the periphery. At the same time, when the sand and gravel and muddy water are located on the outside, the centrifugal force received during rotation increases, which can also facilitate the discharge of sand and gravel and muddy water.

[0054] As an optional way, as Figures 1 - 8 shown, the cross-section of the first convex block 2 in this application is fan-shaped, and the first convex block 2 includes a first base block and a first fixing block 6. A first long groove 201 is formed at the edge of the first base block, and the first fixing block 6 is installed in the first long groove 201; the cross-section of the second convex block 3 is hourglass-shaped, and the second convex block 3 includes a second base block and a second fixing block 7. A second long groove 301 is formed at the edge of the second base block, and the second fixing block 7 is installed in the second long groove 301; a plurality of installation grooves are formed on both the first fixing block 6 and the second fixing block 7, and the flushing parts 8 are correspondingly arranged in the installation grooves.

[0055] In this application, the first long groove 201 and the second long groove 301 formed corresponding to the first base block and the second base block can provide an installation foundation for the first fixing block 6 and the second fixing block 7. Moreover, the formed first long groove 201 and second long groove 301 can enable the first step surface 204 and the second step surface 304 to be formed correspondingly on the first base block and the second base block, thereby providing a foundation for the following first assembly groove 202, second assembly groove 203, third assembly groove 302, and fourth assembly groove 303.

[0056] Preferably, after the first fixing block 6 is installed corresponding to the first long groove 201 and the second fixing block 7 is installed corresponding to the second long groove 301, the first fixing block 6 is flush with the first step surface 204, and the second fixing block 7 is flush with the second step surface 304. However, the first fixing block 6 and the second fixing block 7 themselves have a certain degree of amplitude, and this amplitude is also in the form of being high in the middle and low on the sides, as Figure 5 shown, so as to facilitate the rapid circumferential flow movement of the sediment in contact with the surface.

[0057] It can be understood that during the excavation process, the scouring part 8 is a consumable part and needs to be replaced when it is damaged. In addition, the first fixing block 6 and the second fixing block 7 are respectively installed on the sides of the first convex block 2 and the second convex block 3. During the rotation process, the sides are easily squeezed by the falling sand and gravel and damaged. Therefore, by making the first fixing block 6 and the second fixing block 7 have a split structure with the first base block and the second base block, the maintenance cost can be effectively reduced by replacing the first fixing block 6 or the second fixing block 7.

[0058] Optionally, as Figure 5 combined with Figure 6 and Figures 12 - 14 shown, the scouring part 8 in this application includes a cover body 803 and a nozzle 801. The installation groove includes a deep groove 601. A slot hole 602 is opened on the bottom surface of the deep groove 601, and a limiting groove 603 is provided on the vertical inner wall; the cover body 803 is arranged in the deep groove 601. One end of the nozzle 801 is connected to the branch pipe 9, and the other end passes through the cover body through the slot hole 602 and forms a water spraying port 8018; the cover body 803 forms an insertion part 8031, and the insertion part 8031 is inserted into the limiting groove 603 for setting.

[0059] Through the formed deep groove 601, an installation space can be provided for the cover body 803. And because a slot hole 602 is further opened on the bottom surface of the deep groove 601, and the nozzle 801 can pass through the cover body 803 through the slot hole 602 to communicate with the branch pipe 9. Therefore, the cover body 803 can be used to limit the nozzle 801, and at the same time, the function of the nozzle 801 spraying water to the outside can also be realized.

[0060] Preferably, to ensure the stability of the cover body 803, in this application, a limiting groove 603 communicating with the deep groove 601 is formed, and a plug-in portion 8031 is formed at the position of the cover body 803 corresponding to the limiting groove 603. Thus, by inserting the plug-in portion 8031 into the limiting groove 603, circumferential limitation of the cover body 803 can be achieved, thereby avoiding affecting the stability of the nozzle 801.

[0061] Optionally, as Figures 12 - 14 shown, the flushing member 8 in this application further includes a cutter head 802, a guide post, and a first elastic member 804. The nozzle 801 includes an outer tube body 8011, an inner tube body 8016, a second elastic member 8014, a valve body 8015, and a movable tube 8013; the cover body 803 forms a rectangular groove 604 communicating with the deep groove 601. The cutter head 802 is fixed in the rectangular groove 604. The cutter head 802 forms an inclined surface 8021 and a guide hole 8022. The guide post is slidably connected to the guide hole 8022, and one end of the guide post 805 protrudes from the surface of the cutter head 802, and the other end abuts against the cover body 803; a water spraying port 8018 is formed at one end of the inner tube body 8016. The outer tube body 8011 is sleeved outside the inner tube body 8016, and the movable tube 8013 is located between the inner tube body 8016 and the outer tube body 8011; the first elastic member 804 is located between the cover body 803 and the top end of the movable tube 8013. The second elastic member 8014 is sleeved on one end of the inner tube body 8016 passing through the movable tube 8013, and the second elastic member 8014 is located between the bottom end of the movable tube 8013 and the inner cavity bottom of the outer tube body 8011; a flow channel 8019 is formed inside the inner tube body 8016, and the flow channel 8019 is conical. The valve body 8015 is arranged in the flow channel 8019, and the movable tube 8013 can drive the valve body 8015 to move in the flow channel 8019 to open or close the flow channel 8019.

[0062] In this application, the diameter of the conical flow channel 8019 formed by the inner tube body 8016 gradually decreases from the end close to the branch pipe 9 to the end of the water spraying port 8018. Therefore, the valve body 8015 arranged in the flow channel 8019 can realize the opening and closing of the flow channel 8019. And because the diameter of the flow channel 8019 at the end of the water spraying port 8018 is smaller, the pressure is higher, thereby ensuring that the water outlet pressure can fully flush the sand and gravel.

[0063] It can be understood that, to ensure the movement of the valve body 8015, in this application, both sides of the valve body 8015 are connected with pin rods that can pass through the inner tube body 8016. Correspondingly, strip-shaped grooves 8017 extending axially are formed on the inner tube body 8016. The pin rods move along the strip-shaped grooves 8017, so as to be able to guide the movement of the valve body 8015. And, after actual cooperation, the bottom of the movable tube 8013 abuts against the pin rods, so as to be able to drive the valve body 8015 to move.

[0064] During actual operation, one end of the guide column protruding from the guide hole 8022 contacts the rock layer and is thereby squeezed. Since the guide column can slide along the guide column and one end of the guide column contacts the cover body 803, the cover body 803 can be pushed to move downward, and accordingly, the movable tube 8013 can be driven to move downward while compressing the first elastic member 804. The bottom of the movable tube 8013 abuts against the pin rod of the valve body 8015, and therefore, the valve body 8015 can be driven to move downward while compressing the second elastic member 8014, so that it can move to the area of ​​the flow channel 8019 with a larger diameter, thereby realizing the opening of the flow channel 8019, and water flows through the flow channel 8019 and is sprayed out from the water nozzle 8018, thereby realizing the cooling of the tool and the impact of sand and gravel.

[0065] When the guide column is separated from the rock layer, the cover body 803 is reset under the action of the first elastic member 804, and the movable tube 8013 that loses pressure is moved upward by the action of the second elastic member 8014, so that the valve body 8015 moves upward, thereby driving the movable tube 8013 to move upward, so that the overall nozzle 801 is reset, and the valve body 8015 can block the flow channel 8019 after reaching the corresponding position, so that the nozzle 801 stops spraying water.

[0066] It should be additionally explained here that the bottom end of the outer tube body 8011 in the present application passes through the cutter disc body 1 and is fitted with a nut 8012 to achieve positioning of the outer tube body 8011 .

[0067] Alternatively, if Figures 7 - 9 As shown, the present application also includes a first hob 5, a plurality of first assembly grooves 202 are formed on the first basic block, the first hob 5 is arranged in a one-to-one correspondence with the first basic block, and the first hob 5 is embedded in the first assembly groove 202; it also includes a first cutter body 4, a second assembly groove 203 is also formed on the first basic block, and the first cutter body 4 is embedded in the second assembly groove 203; it also includes a second hob 11, a plurality of third assembly grooves 302 are formed on the second basic block, the second hob 11 is arranged in a one-to-one correspondence with the second basic block, and the second hob 11 is embedded in the third assembly groove 302; it also includes a second cutter body 12, a fourth assembly groove 303 is also formed on the second basic block, and the second cutter body 12 is embedded in the fourth assembly groove 303.

[0068] The first roller cutter 5 and the second roller cutter 11 in the present application appear in a group, and a plurality of flushing members 8 are installed on one side. The water sprayed by the flushing members 8 rushes toward the first roller cutter 5 and the second roller cutter 11, so as to wash away the sand and gravel attached to the first roller cutter 5 and the second roller cutter 11, and cool down the installed first roller cutter 5 and the second roller cutter 11 at the same time, so as to solve the problem of damage to the roller cutters caused by long-term high-temperature operation.

[0069] In addition, the present invention also provides a shield machine, comprising the above-mentioned shield cutter head flushing device.

[0070] During the operation process, the shield machine adopting the shield cutter head flushing device provided by this application can discharge sand, gravel and slurry, thus to a certain extent avoiding the formation of a caking layer in the groove, further ensuring the stable operation of the equipment to a certain extent, and at the same time reducing the difficulty and cost of cleaning the cutter head after the operation stops, and ensuring the operation efficiency of the equipment during the operation.

[0071] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A shield cutter head flushing device, characterized in that: It includes a cutter disc mechanism and a flushing mechanism; The cutter disc mechanism comprises a cutter disc body, two first protrusions and at least one second protrusion, the two first protrusions are symmetrically distributed on both sides of the second protrusion, and an arc-shaped channel is formed between adjacent first protrusions and second protrusions; The flushing mechanism comprises a flushing member, a branch pipe and a main pipe, wherein the flushing member is arranged on the side of the first protrusion and the second protrusion close to the channel, and the flushing member is connected to the main pipe through the branch pipe; The middle part of the cutter disc body is protruding, and the height gradually decreases from the middle part to the outside; The cutter body is formed with a hollow portion at a position corresponding to the first protrusion and the second protrusion, the shape of the hollow portion is adapted to the shape of the first protrusion and the second protrusion, and the size of the hollow portion is smaller than the size of the first protrusion and the second protrusion; The cross section of the first protrusion is fan-shaped, and the first protrusion includes a first basic block and a first fixed block, a first long groove is formed on the edge of the first basic block, and the first fixed block is installed in the first long groove; The cross section of the second protrusion is hourglass-shaped, and the second protrusion includes a second base block and a second fixed block, a second long groove is formed at an edge of the second base block, and the second fixed block is installed in the second long groove; A plurality of mounting grooves are formed on the first fixing block and the second fixing block, and the flushing parts are correspondingly arranged in the mounting grooves; The flushing member includes a cover body and a nozzle, the mounting groove includes a deep groove, a slot hole is formed on the bottom surface of the deep groove, and a limiting groove is formed on the vertical inner wall; The cover body is arranged in the deep groove, one end of the nozzle is connected to the branch pipe, and the other end passes through the cover body through the slot hole to form a water spray port; The cover body is formed with an inserting portion, and the inserting portion is inserted into the limiting groove; The flushing member further comprises a cutter head, a guide column and a first elastic member, and the nozzle comprises an outer tube body, an inner tube body, a second elastic member, a valve body and a movable tube; The cover body is formed with a rectangular groove connected with the deep groove, the cutter head is fixed in the rectangular groove, the cutter head is formed with an inclined surface and a guide hole, the guide post is slidably connected with the guide hole, and one end of the guide post protrudes from the surface of the cutter head, and the other end abuts against the cover body; The water spray port is formed at one end of the inner tube body, the outer tube body is sleeved outside the inner tube body, and the movable tube is located between the inner tube body and the outer tube body; The first elastic member is located between the cover body and the top of the movable tube, the second elastic member is sleeved on one end of the inner tube body passing through the movable tube, and the second elastic member is located between the bottom end of the movable tube and the bottom of the inner cavity of the outer tube body; A flow channel is formed inside the inner tube body, and the flow channel is conical. The valve body is arranged in the flow channel, and the movable tube can drive the valve body to move in the flow channel to open or close the flow channel.

2. The shield cutter head flushing device according to claim 1, characterized in that: It also includes a first roller cutter. A plurality of first assembly grooves are formed on the first basic block. The first roller cutters are arranged in a one-to-one correspondence with the first basic blocks, and the first roller cutters are embedded in the first assembly grooves.

3. The shield cutter head flushing device according to claim 1, characterized in that: It also includes a first blade body. A second assembly groove is formed on the first base block. The first blade body is embedded in the second assembly groove.

4. The shield cutter head flushing device according to claim 1, characterized in that: It also includes a second roller cutter. A plurality of third assembly grooves are formed on the second basic block. The second roller cutters are arranged in a one-to-one correspondence with the second basic blocks, and the second roller cutters are embedded in the third assembly grooves.

5. The shield cutter head flushing device according to claim 1, characterized in that: It also includes a second blade body. A fourth assembly groove is formed on the second base block, and the second blade body is embedded in the fourth assembly groove.

6. A shield machine, characterized in that: The invention comprises the shield cutter head flushing device described in any one of claims 1 to 5.

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