Mode conversion assembly and cutter head

Abstract

The utility model relates to the technical field of engineering machinery heading machines, in particular to a mode conversion assembly and a cutterhead. The mode conversion assembly comprises a plurality of sealing pieces and a plurality of supporting pieces; the supporting piece comprises a supporting frame and a supporting rod arranged on the supporting frame, and the sealing piece is configured to be detachably connected to the panel opening of the cutterhead in a TBM mode so as to seal the panel opening; the supporting frame and the supporting rod are configured to be detachably connected to the cutterhead in a TBM mode. According to the mode conversion assembly, the mode conversion efficiency of the cutterhead is improved.

Description

Technical Field

[0001] The present application relates to the technical field of engineering machinery tunnel boring machines, and in particular to a mode conversion component and a cutterhead. Background Art

[0002] With the development of tunnel boring machine technology, tunnel boring machines are more widely used in tunnel construction. Faced with complex and changeable strata, single-mode shield tunneling can no longer meet the tunneling needs, and the development of tunnel boring machines towards dual-mode or even multi-mode is an inevitable trend.

[0003] The earth pressure / TBM dual-mode tunnel boring machine has two modes: earth pressure and TBM (Tunnel Boring Machine). Through mode conversion, it can adapt to the complex geological conditions of long-distance alternating soft and hard rock formations. In the earth pressure mode, the cutter is installed in the panel opening; when converted to TBM mode, it is necessary to weld a sealing plate to close the panel opening on the cutter head, and then weld a supporting structure to form a slag channel; when converted to the earth pressure mode again, the welded sealing plate and supporting structure need to be removed.

[0004] However, in actual application, due to the large differences in the functional structure of the cutter disc under different modes, the mode conversion is often faced with complex conversion processes, the need for welding operations, time-consuming conversion operations, and impact on project progress. Utility Model Content

[0005] The present application provides a mode conversion component and a cutter disc, which are used to solve the problem that the process of cutter disc mode conversion is complicated and time-consuming.

[0006] In one aspect, the present application provides a mode conversion assembly, comprising a plurality of sealing members and a plurality of supporting members; the supporting members comprise a supporting frame and a supporting rod disposed on the supporting frame;

[0007] The seal is configured to be detachably connected to the panel opening of the cutter disc in TBM mode to seal the panel opening; the support frame and the support rod are configured to be detachably connected to the cutter disc in TBM mode, the support frame is used to be attached to the cutter disc, one side of the support frame is used to be connected to the large ring of the cutter disc, and the other side of the support frame is used to be connected to the cutter disc leg, one end of the support rod is used to be connected to the inner wall of the bucket of the cutter disc, and the support frame constitutes a slag guiding channel.

[0008] In some embodiments, the support frame includes a support plate and a plurality of connecting plates, the plurality of connecting plates are sequentially arranged around the circumference of the support plate, the connecting plate is used to connect to the cutter disc, and one end of the support rod is connected to one of the connecting plates.

[0009] In some embodiments, a plurality of the support frames are arranged along the circumference of the cutter disc, and the plane where the support plates are located is arranged along the radial plane of the cutter disc.

[0010] In some embodiments, the mode conversion component also includes a plurality of slag chute plates, which are used to be set on the back plate of the cutter disc, and the slag chute plates are located between the support plate and the center of the cutter disc, and correspond one-to-one with the support plate, and the slag chute plates are parallel to the corresponding support plates.

[0011] In some embodiments, the mode conversion assembly also includes a support mounting member, which includes a first mounting block and a second mounting block, wherein the first mounting block is used to be set on the support leg of the cutter disc, and the second mounting block is used to be set on the peripheral wall of the cutter disc, and the two sides of the support frame are respectively detachably connected to the first mounting block and the second mounting block.

[0012] In some embodiments, the support mounting member also includes a third mounting block, which is used to be set on the large circular ring of the cutter disc. One end of the support rod is detachably connected to the third mounting block, and the other end is detachably connected to the support frame.

[0013] In some embodiments, the mode conversion assembly also includes a plurality of protective plates, which are configured such that, in the soil pressure mode, the protective plates are respectively disposed on the first mounting block, the second mounting block and the third mounting block to cover the first mounting block, the second mounting block and the third mounting block that are disconnected from the support member.

[0014] In some embodiments, the sealing member includes a sealing plate and two connecting blocks, wherein the two connecting blocks are respectively connected to two sides of the sealing plate, and the connecting blocks are detachably connected to the cutter seat of the panel opening.

[0015] In some embodiments, the sealing member further comprises at least two diagonal support blocks, one side of the diagonal support block is fixed to the sealing plate, and the other side of the diagonal support block is fixed to the connecting block.

[0016] On the other hand, the present application provides a cutter disc, including a cutter disc body and a mode conversion assembly disposed on the cutter disc body.

[0017] The present application provides a mode conversion component and a cutter disc. The mode conversion component is provided with a seal, a support frame and a support rod. When the cutter disc is converted to TBM mode, the seal is installed on the panel opening of the cutter disc to seal the panel opening. The support frame and the support rod are connected to the cutter disc, so as to strengthen the structural strength of the cutter disc while constructing a slag chute. When the cutter disc is converted to earth pressure mode, the sealing plate, the support frame and the support rod are removed, and the cutter is installed in the panel opening. The mode conversion component is disassembled and assembled through a detachable connection method, thereby avoiding welding operations, being reusable, reducing the time consumption of conversion operations, and improving the efficiency of mode conversion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] Figure 1 A schematic diagram of the structure of the front side of the cutter disc provided in the embodiment of the present application;

[0020] Figure 2 for Figure 1 Schematic diagram of the back structure of the middle cutter disc;

[0021] Figure 3 A schematic diagram of the local structure of the cutterhead in the earth pressure mode provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the local structure of the cutterhead in TBM mode provided in an embodiment of the present application;

[0023] Figure 5 A schematic diagram of the structure of the support frame of the cutter head provided in the embodiment of the present application when in TBM mode;

[0024] Figure 6 for Figure 5 Schematic diagram of the structure of the middle support rod;

[0025] Figure 7 for Figure 5 A schematic diagram of the structure of the middle support frame from another angle;

[0026] Figure 8 for Figure 1 Schematic diagram of the structure of the middle seal.

[0027] Description of reference numerals:

[0028] 1. Cutter head; 2. Legs; 3. Panel opening; 4. Slag inlet;

[0029] 100, sealing member; 110, sealing plate; 120, connecting block; 130, diagonal support block;

[0030] 200, support member; 210, support frame; 211, support plate; 212, connecting plate; 220, support rod;

[0031] 300, slag slide plate;

[0032] 400, support mounting member; 410, first mounting block; 420, second mounting block; 430, third mounting block;

[0033] 500. Protection plate.

[0034] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0035] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0036] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In this application, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] As mentioned in the background technology, with the development of tunnel boring machine technology, tunnel boring machines are more widely used in tunnel construction. Faced with complex and changeable strata, single-mode shield tunneling can no longer meet the needs of tunneling, and the development of tunnel boring machines to dual-mode or even multi-mode has become a general trend. The earth pressure / TBM dual-mode tunnel boring machine has two modes: earth pressure and TBM (Tunnel Boring Machine). Through mode conversion, it can adapt to the complex geological conditions of long-distance alternating soft and hard rock strata. In the earth pressure mode, a cutter is installed in the panel opening; when converted to TBM mode, it is necessary to weld a sealing plate to close the panel opening on the cutterhead, and then weld a supporting structure to construct a slag chute; when converted to the earth pressure mode again, the welded sealing plate and supporting structure need to be removed.

[0040] However, in actual application, due to the large differences in the functional structure of the cutter disc under different modes, the mode conversion is often faced with complex conversion processes, the need for welding operations, time-consuming conversion operations, and impact on project progress.

[0041] In order to solve the above problems, the present application provides a mode conversion component and a cutter disc. The mode conversion component is provided with a seal, a support frame and a support rod. When the cutter disc is converted to TBM mode, the seal is installed on the panel opening of the cutter disc to seal the panel opening, and the support frame and the support rod are connected to the cutter disc, so as to strengthen the structural strength of the cutter disc while constructing a slag chute; when the cutter disc is converted to earth pressure mode, the sealing plate, the support frame and the support rod are removed, and the cutter is installed in the panel opening; the mode conversion component is disassembled and assembled through a detachable connection method, thereby avoiding welding operations, being reusable, reducing the time consumption of conversion operations, and improving the efficiency of mode conversion.

[0042] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0043] On the one hand, the present application provides a mode conversion component, referring to Figures 1 to 8 The mode conversion assembly includes a plurality of sealing members 100 and a plurality of supporting members 200 ; the supporting member 200 includes a supporting frame 210 and a supporting rod 220 disposed on the supporting frame 210 .

[0044] The seal 100 is configured to be detachably connected to the panel opening 3 of the cutter disc 1 in TBM mode to seal the panel opening 3; the support frame 210 and the support rod 220 are configured to be detachably connected to the cutter disc 1 in TBM mode, the support frame 210 is used to be attached to the cutter disc 1, one side of the support frame 210 is used to be connected to the large ring of the cutter disc 1, and the other side of the support frame 210 is used to be connected to the leg 2 of the cutter disc 1, one end of the support rod 220 is used to be connected to the inner wall of the bucket of the cutter disc 1, and the support frame 210 constitutes a slag guiding channel.

[0045] In this application, reference is made to Figure 1 , Figure 2 and Figure 3 There are legs 2 between the main body of the cutterhead 1 and the main body of the tunnel boring machine to support the cutterhead 1. A panel opening 3 is provided on the panel of the cutterhead 1. The panel opening 3 is located in the middle of the panel of the cutterhead 1 to ensure the opening rate of the cutterhead 1 in the soil pressure mode and provide a cutter installation space. The panel opening 3 needs to be closed in the TBM mode; the panel edge of the cutterhead 1 has a slag inlet, which is circumferentially arranged on the panel of the cutterhead 1. This is a prior art and will not be described in detail here.

[0046] In some embodiments, reference Figure 4 and Figure 5 The support frame 210 includes a support plate 211 and a plurality of connecting plates 212 . The plurality of connecting plates 212 are sequentially arranged around the support plate 211 . The connecting plates 212 are connected to the cutter disc 1 . One end of the support rod 220 is connected to a connecting plate 212 .

[0047] Specifically, the connection plate 212 is welded and fixed on the circumference of the support plate 211 to facilitate the connection and fixation between the support plate 211 and the cutter head 1 .

[0048] The support plate 211 is attached to the cutter disc, and the three adjacent sides of the support plate 211 are connected to the cutter disc 1, the bottom of the support plate is connected to the support legs of the cutter disc 1, the middle side is connected to the cutter disc 1 body by bolts, and the top is connected to the large ring of the cutter disc 1.

[0049] In the present application, the side where the support plate 211 is attached to the panel of the cutter disc 1 is not provided with a connecting plate 212. The shape of the support plate 211 is adapted to the internal space of the cutter disc 1 to facilitate the installation of the support plate 211. The support plate 211 is installed on the side of the leg 2 of the cutter disc 1 close to the peripheral wall of the cutter disc 1, so that the support strength of the panel of the cutter disc 1 is improved by the setting of the support plate 211 to meet the strength requirements of the cutter disc 1 in the TBM mode.

[0050] Among them, a plurality of support frames 210 are arranged along the circumference of the cutter disc 1, and the plane where the support plate 211 is located is arranged along the radial plane of the cutter disc 1. The support frames 210 form a slag guide channel for the slag to pass through and be discharged. The slag and gravel enter from the slag inlet 4, and the support frames 210 rotate synchronously with the cutter disc 1. The slag and gravel are attached to the support frames 210 and move, thereby guiding the discharge of the slag and gravel.

[0051] A support plate 211 is arranged behind the slag inlet 4. In the TBM mode, the slag and gravel produced by the cutter head 1 enter the slag guiding channel from the slag inlet 4, and flow to the collecting device for collection following the rotation of the cutter head 1 and the support plate 211. The support plate 211 blocks the slag and gravel from rotating randomly in the cutter head 1, thereby reducing the damage of the slag and gravel to the internal structure of the cutter head 1 and meeting the slag sliding requirements in the TBM mode.

[0052] Further, in some embodiments, referring to Figure 5 , Figure 6 and Figure 7 The mode conversion component also includes a plurality of slag chute plates 300, which are used to be set on the back plate of the cutter disc 1. The slag chute plates 300 are located between the support plate 211 and the center of the cutter disc 1, and correspond one to one with the support plate 211. The slag chute plates 300 are located on the same circumference coinciding with the center of the cutter disc 1, and the slag chute plates 300 are parallel to the corresponding support plates 211.

[0053] The slag slide plate 300 is detachably connected to the inner wall of the cutter head 1, so as to facilitate the disassembly and assembly of the slag slide plate 300 when the cutter head 1 switches modes.

[0054] In the present application, the slag plate 300 is fixed to the inner wall of the cutter head 1 by bolts. Of course, in other embodiments, other detachable connection methods can also be adopted, and there is no excessive restriction here, as long as the detachable connection of the slag plate 300 can be achieved.

[0055] By adopting the above technical solution, the slag chute plate 300 extends the slag chute length of the support plate 211, thereby making the slag guiding channel more perfect, so that the slag and gravel in the middle of the cutter head 1 are also in the slag guiding channel, so as to provide a better slag chute effect.

[0056] In some embodiments, reference Figure 3 and Figure 5 The mode conversion component also includes a support mounting member 400, which includes a first mounting block 410 and a second mounting block 420. The first mounting block 410 is used to be set on the support leg 2 of the cutter disc 1, and the second mounting block 420 is used to be set on the large circular ring of the cutter disc 1. The two sides of the support frame 210 are detachably connected to the first mounting block 410 and the second mounting block 420 respectively.

[0057] Specifically, the first mounting block 410 is welded and fixed on the supporting leg 2 , and the second mounting block 420 is welded and fixed on the large circular ring of the cutter disc 1 .

[0058] In the present application, the support frame 210 is connected to the first mounting block 410 and the second mounting block 420 by bolts. A plurality of threaded holes are provided on the first mounting block 410 and the second mounting block 420. During installation, the support frame 210 can be detachably connected by using bolts to pass through the connecting plate 212 and threadedly connect with the threaded holes on the first mounting block 410 or the second mounting block 420. This facilitates the disassembly and assembly of the support frame 210 when the cutter head 1 switches modes, thereby improving the efficiency of mode switching.

[0059] In some embodiments, reference Figure 5 The support mounting member 400 also includes a third mounting block 430, which is used to be set on the large circular ring of the cutter disc 1. One end of the support rod 220 is detachably connected to the third mounting block 430, and the other end is detachably connected to the support frame 210.

[0060] Specifically, the third mounting block 430 is a triangular block, and one side of the third mounting block 430 is welded and fixed to the large circular ring of the cutter disc 1 .

[0061] Similarly, a threaded hole is provided on the third mounting block 430, one end of the support rod 220 is fixedly connected to the third mounting block 430 by bolts, and the other end of the support rod 220 is fixedly connected to the connecting plate 212 on the side of the support plate 211 away from the blade disc 1 panel by bolts.

[0062] In some embodiments, reference Figure 3 The mode conversion assembly also includes a plurality of protection plates 500, which are configured such that, in the soil pressure mode, the protection plates 500 are respectively disposed on the first mounting block 410, the second mounting block 420 and the third mounting block 430 to cover the first mounting block 410, the second mounting block 420 and the third mounting block 430 that are disconnected from the support member 200.

[0063] By adopting the above technical solution, when the cutter disc is converted to the soil pressure mode, after removing the support frame 210 and the support rod 220, the protection plate 500 is installed on the first mounting block 410, the second mounting block 420 and the third mounting block 430 to protect the bolt holes on the first mounting block 410, the second mounting block 420 and the third mounting block 430 to prevent soil debris from contaminating the bolt holes.

[0064] For example, refer to Figure 1The side of the support plate 211 is welded and fixed to the middle of the connecting plate 212, so that the cross-section of the support frame 210 is T-shaped, and support rods 220 are provided on both sides of the support plate 211. The support rods 220 on both sides are symmetrically fixed on the connecting plates 212 on both sides of the support plate 211 to improve the supporting strength of the cutter disc 1.

[0065] Exemplarily, the side of the support plate 211 is welded and fixed to the side of the connecting plate 212 to form an L-shape. The two support plates 211 are symmetrically welded and fixed so that the two connecting plates 212 are respectively located on both sides of the support plates to form a T-shaped support frame 210. The two support rods 220 are respectively connected to the two connecting plates 212 to further improve the support strength.

[0066] In some embodiments, reference Figure 1 The sealing member 100 includes a sealing plate 110 and two connecting blocks 120 . The two connecting blocks 120 are respectively connected to two sides of the sealing plate 110 . The connecting blocks 120 are detachably connected to the cutter seat of the panel opening 3 .

[0067] Specifically, two connection blocks 120 are welded and fixed to both ends of the sealing plate 110 to be connected into a groove shape.

[0068] The connection block 120 is L-shaped, and the two connection blocks 120 are symmetrically fixed on the sealing plate 110. When the sealing plate 110 is installed, the connection block 120 is partially inserted into the panel opening 3 of the cutter head 1 and is detachably connected to the panel opening 3.

[0069] Furthermore, the connecting block 120 is connected to the panel opening 3 of the cutter disc 1 by bolts, sharing the installation hole of the cutter, so as to facilitate the disassembly and assembly of the sealing plate 110 when the cutter disc 1 is in the switching mode.

[0070] Furthermore, the sealing member 100 further includes at least two diagonal support blocks 130 , one side of the diagonal support block 130 is fixed on the sealing plate 110 , and the other side of the diagonal support block 130 is fixed on the connecting block 120 .

[0071] The diagonal support block 130 is a right triangle, one right-angled side of the diagonal support block 130 is welded and fixed to the sealing plate 110 , and the other right-angled side is welded and fixed to the connecting block 120 . The two diagonal support blocks 130 are symmetrically arranged to improve the strength of the sealing plate 110 .

[0072] On the other hand, the present application provides a cutter disc, including a cutter disc body and a mode conversion assembly disposed on the cutter disc body.

[0073] Among them, the mode conversion component in this embodiment has the same structure as the mode conversion component provided in any of the above embodiments, and can bring the same or similar technical effects, which will not be described one by one here, and the details can be referred to the description of the above embodiments.

[0074] When cutterhead 1 switches from earth pressure mode to TBM mode:

[0075] 1. Remove the protective block 500 and clean the corresponding bolt holes;

[0076] 2. Install the support frame 210. Align the support frame 210 with the first mounting block 410 and the second mounting block 420 on the cutter head 1, and install the support frame 210 by bolts.

[0077] 3. Install the support rod 220. Align the bolt holes at both ends of the support rod 220 with the bolt holes of the support frame 210 and the third mounting block 430, and install the support rod 220 by bolts.

[0078] 4. Install the slag plate 300. Fix the slag plate 300 to the inner side of the leg 2 of the cutter head 1 by bolts.

[0079] 5. Install the seal 100 . Remove the cutter and use the bolt holes on the panel opening 3 as the installation holes of the seal 100 to fix the seal 100 .

[0080] When cutterhead 1 switches from TBM mode to earth pressure mode:

[0081] The support frame 210 , the support rod 220 , the slag slide plate 300 and the sealing member 100 are removed, the cutter is installed in the panel opening, and the corresponding protection plate 500 is installed.

[0082] The present application provides a cutter disc, through the setting of a seal 100, a support frame 210 and a support rod 220, when the cutter disc 1 is converted to TBM mode, the seal 100 is installed on the panel opening 3 of the cutter disc 1 to seal the panel opening 3, and the support frame 210 and the support rod 220 are both connected to the cutter disc 1, so as to strengthen the structural strength of the cutter disc 1 while constructing a slag channel; when the cutter disc 1 is converted to earth pressure mode, the sealing plate 110, the support frame 210 and the support rod 220 are removed, and the cutter is installed in the panel opening 3; the mode conversion assembly is disassembled and assembled by a detachable connection method, so that welding operations are avoided, it can be reused, the time consumption of conversion operations is reduced, and the efficiency of mode conversion is improved. After considering the specification and practicing this application, it will be easy for those skilled in the art to think of other embodiments of this application. This application is intended to cover any variants, uses or adaptive changes of this application, which follow the general principles of this application and include common knowledge or conventional technical means in this technical field that are not disclosed in this application. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

[0083] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A mode conversion component, characterized in that: It comprises a plurality of sealing members (100) and a plurality of supporting members (200); the supporting member (200) comprises a supporting frame (210) and a supporting rod (220) arranged on the supporting frame (210); The sealing member (100) is configured to be detachably connected to the panel opening (3) of the cutter disc (1) in TBM mode to seal the panel opening (3); the support frame (210) and the support rod (220) are configured to be detachably connected to the cutter disc (1) in TBM mode, the support frame (210) being used to be attached to the inside of the cutter disc (1), one side of the support frame (210) being used to be connected to the large circular ring of the cutter disc (1), and the other side of the support frame (210) being used to be connected to the support leg (2) of the cutter disc (1), one end of the support rod (220) being used to be connected to the inner wall of the bucket of the cutter disc (1), and the support frame (210) forming a slag guide channel.

2. The mode conversion component according to claim 1, characterized in that: The support frame (210) comprises a support plate (211) and a plurality of connecting plates (212), wherein the plurality of connecting plates (212) are sequentially arranged around the support plate (211), the connecting plates (212) are used to be connected to the cutter disc (1), and one end of the support rod (220) is connected to one of the connecting plates (212).

3. The mode conversion component according to claim 2, characterized in that: The plurality of support frames (210) are used to be arranged along the circumference of the cutter disc (1), and the plane where the support plate (211) is located is arranged along the radial plane of the cutter disc (1).

4. The mode conversion component according to claim 2, characterized in that: It also includes a plurality of slag chute plates (300), which are used to be arranged on the back plate of the cutter disc (1), and the slag chute plates (300) are located between the support plate (211) and the center of the cutter disc (1), and correspond one to one with the support plate (211), and the slag chute plates (300) are parallel to the corresponding support plates (211).

5. The mode conversion component according to any one of claims 1 to 4, characterized in that: It also includes a support mounting member (400), the support mounting member (400) including a first mounting block (410) and a second mounting block (420), the first mounting block (410) being used to be arranged on the support leg (2) of the cutter disc (1), the second mounting block (420) being used to be arranged on the large circular ring of the cutter disc (1), and the two sides of the support frame (210) are respectively detachably connected to the first mounting block (410) and the second mounting block (420).

6. The mode conversion component according to claim 5, characterized in that: The support mounting member (400) further comprises a third mounting block (430), wherein the third mounting block (430) is used to be arranged on the large circular ring of the cutter disc (1), and one end of the support rod (220) is detachably connected to the third mounting block (430), and the other end is detachably connected to the support frame (210).

7. The mode conversion component according to claim 6, characterized in that: The invention also comprises a plurality of protection plates (500), wherein the protection plates (500) are configured such that, in the soil pressure mode, the protection plates (500) are respectively arranged on the first mounting block (410), the second mounting block (420) and the third mounting block (430) to cover the first mounting block (410), the second mounting block (420) and the third mounting block (430) which are disconnected from the support member (200).

8. The mode conversion component according to any one of claims 1 to 4, characterized in that: The sealing member (100) comprises a sealing plate (110) and two connecting blocks (120), wherein the two connecting blocks (120) are respectively connected to two sides of the sealing plate (110), and the connecting blocks (120) are detachably connected to a cutter seat of the panel opening (3).

9. The mode conversion component according to claim 8, characterized in that: The sealing member (100) further comprises at least two diagonal support blocks (130), one side of the diagonal support block (130) being fixed on the sealing plate (110) and the other side of the diagonal support block (130) being fixed on the connecting block (120).

10. A cutter disc, characterized in that: The utility model comprises a cutter disc body and a mode conversion assembly as claimed in any one of claims 1 to 9 arranged on the cutter disc body.

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