A block-type cutterhead auxiliary assembly device, assembly system and assembly method

Abstract

The present invention relates to a segmented cutterhead auxiliary assembly device, assembly system, and assembly method, wherein the segmented cutterhead auxiliary assembly device comprises a frame and an upper support member; the upper support member is horizontally arranged above the frame; the frame and the upper support member are both axially symmetrical along the same central vertical plane, and the frame and the upper support member are coaxially arranged along a vertical axis; the center position of the upper support member is used to horizontally position the tooling above the cutterhead; the height of the segmented cutterhead auxiliary assembly device in the vertical direction is equal to the thickness of the cutterhead. The device is simple to operate and shortens the construction period; it simplifies the cutterhead assembly process and significantly improves the efficiency of the hob cutterhead riveting and cutterhead assembly; the hob cutterhead positioning accuracy is reliable, and the quality of the TBM cutterhead is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering construction equipment, and in particular to a block-type cutter head auxiliary assembly device, an assembly system and an assembly method. Background Art

[0002] As the primary equipment for tunnel excavation, the TBM (Transport Boring Machine) boasts high excavation speeds, environmental friendliness, and high overall efficiency. It enables the construction of deep, long tunnels in complex terrain, difficult to achieve with traditional drill-and-blast methods. Depending on the operating conditions, TBM cutterheads are available in various configurations, including monolithic and segmented. To facilitate hoisting, operation, assembly, disassembly, and storage, large-diameter TBM cutterheads are often segmented. During operation, the cutterhead gradually dislodges the rock at the tunnel face through the penetration, compression, and friction of the cutterheads, resulting in the gradual dislodging of rock from the tunnel face through rotation (around its axis) and revolution (around the cutterhead's center flange), completing the excavation process. The cutterheads and cutterhead holders experience significant wear and tear throughout the excavation process. Factors affecting cutter life and cutterhead holder wear include not only the materials of the cutter and cutterhead holder, as well as the type of geology being operated, but also the dimensional accuracy of the cutter and cutterhead holders.

[0003] The existing TBM block-type hob cutter assembly methods mainly include the following: 1. Design a special cutter mounting tool and tool template according to the excavation radius of each hob cutter, complete the riveting and welding of multiple blocks, and then complete the assembly of the middle block and the blocks. The cutter mounting tool is positioned on the cutter head panel with the middle block as the center. The tool template is connected to the cutter mounting tool. The cutter mounting tool is rotated and positioned using the tool template and the dummy tool to complete the riveting and positioning of the hob cutter seat in one go. 2. The connecting plate between the block and the middle block retains machining allowances. A single side block is assembled with the middle block. The cutter mounting tool is positioned at the center panel according to the direction of the machining allowance of the side block and the middle block. The cutter mounting tool is connected to the tool template. The cutter mounting tool is rotated and positioned using the tool template and the dummy tool to complete the riveting and positioning of a single side block hob cutter seat in one go. After completing the riveting of the hob cutter seat of one side block, assemble the other side blocks and the middle block in sequence to complete the positioning of the cutter mounting tool and the riveting of the hob cutter seat. Finally, complete the processing of the middle block and the side blocks. 3. After the center block and the side block are riveted and welded once, the cutter head center is determined by flange processing. The theoretical tool center of each hob cutter seat is determined by the determined cutter head center, and then the positioning device is used to complete the riveting welding of a single hob cutter seat. Finally, the machining of the middle block and the side block is completed.

[0004] When riveting and positioning the existing TBM cutterhead hob cutter holder, if the side blocks are machined first and then assembled with the middle block, the entire cutterhead hob cutter holder is riveted through the tool mounting fixture, tool template and hob dummy cutter, there is a risk of secondary alignment reference deviation, and there is no concession size between the block and the middle block connecting plate; if there is a large deviation in the position of the tool box, the position of the hob cutter holder cannot be guaranteed; if the side blocks and the middle block retain machining allowances, a single side block is assembled with the middle block, and the tool mounting fixture offset center cooperates with the hob dummy cutter to complete the riveting of the single side block hob cutter holder. Multiple blocks are assembled and repeated operations are performed, the process is complicated, the construction period is long, and the benchmark needs to be aligned multiple times, which increases the risk of deviation.

[0005] Therefore, developing a block-type cutterhead assembly method is a goal that needs to be solved urgently. Summary of the Invention

[0006] (1) Technical issues to be resolved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a block-type cutterhead auxiliary assembly device, assembly system and assembly method, which solve the technical problems of the risk of alignment reference deviation, repeated operations, multiple alignment references, complex process and long construction period in the existing TBM cutterhead hob assembly process.

[0008] (2) Technical solution

[0009] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0010] In the first aspect, an embodiment of the present invention provides a segmented cutter disc auxiliary assembly device, comprising a frame and an upper support member; the upper support member is horizontally arranged above the frame; the frame and the upper support member are both axially symmetrical along the same central vertical plane, and the frame and the upper support member are coaxially arranged along a vertical axis; the center position of the upper support member is used to horizontally position the tooling to above the cutter disc position; the height of the segmented cutter disc auxiliary assembly device in the vertical direction is equal to the thickness of the cutter disc.

[0011] Optionally, in the segmented cutter disc auxiliary assembly device, a first through hole is provided at the center of the upper support member for mounting a cutter tool that is adjustable along the vertical direction.

[0012] Optionally, the segmented cutter disc auxiliary assembly device further includes a fixed base; the fixed base is adjustably arranged above the upper support member in the vertical direction; a second through hole is opened on the fixed base in the vertical direction; the second through hole is coaxially arranged with the upper support member for horizontal positioning of the tooling.

[0013] Optionally, in the segmented cutter disc auxiliary assembly device, the fixed base and the upper support member are connected around the central axis of the upper support member by using a plurality of adjustment bolts arranged at intervals; a plurality of limit blocks are arranged between the fixed base and the upper support member in the vertical direction, and the limit blocks are located between the fixed base and the upper support member and are embedded in the fixed base and the upper support member at the same time to form a horizontal limit for the two; the plurality of limit blocks correspond one-to-one to the plurality of adjustment bolts, and the adjustment bolts are passed through the limit blocks.

[0014] Optionally, in the segmented cutter disc auxiliary assembly device, the frame includes a support portion and a lower support member; the lower support member and the upper support member are arranged opposite to each other at the two ends of the support portion in the vertical direction; the cross-sectional area of ​​the lower support member is larger than the cross-sectional area of ​​the upper support member; the support portion includes at least four ribs; at least four of the ribs are axially symmetrically distributed around the central axis of the upper support member; the two ribs axially symmetrically distributed are located in the same vertical plane; the ribs are trapezoidal plates with a larger upper portion and a smaller lower portion.

[0015] In a second aspect, an embodiment of the present invention provides a segmented cutter disc auxiliary assembly system, comprising the segmented cutter disc auxiliary assembly device described in the first aspect; further comprising a plurality of side blocks, a tool mounting tool, a tool template, a plurality of roller cutter holders and a roller cutter dummy; each two side blocks are horizontally placed relative to each other according to preset positions; the segmented cutter disc auxiliary assembly device is located at the same horizontal position as the two side blocks, and is located at the center position between the two side blocks; the tool mounting tool is arranged above the segmented cutter disc auxiliary assembly device, and the tool mounting tool can rotate around the central axis of the segmented cutter disc auxiliary assembly device to cover the cutter disc position where the side block is located; a plurality of roller cutter holders are used to be installed at corresponding preset positions on the side blocks; the tool template is arranged below the tool mounting tool; the roller cutter dummy equipped with the roller cutter holder can be detachably arranged below the tool template, and aligned with the preset position of the roller cutter holder on the side block under the rotation cooperation of the tool mounting tool; the roller cutter holder is positioned and installed to the corresponding preset position on the side block with the help of the roller cutter dummy.

[0016] In a third aspect, an embodiment of the present invention provides a method for assembling a segmented cutterhead, based on the segmented cutterhead auxiliary assembly system described in the second aspect, and the specific steps are as follows:

[0017] S1. Place the two side blocks at opposite positions on the cutter head at the same horizontal position according to the installation requirements, adjust the flatness, and determine the center between the two side blocks;

[0018] S2, installing the tooling fixture to the center position of the upper support member of the segmented cutter disc auxiliary assembly device, then installing the tool template onto the tooling fixture, adjusting the flatness of the tool template, and assembling to obtain a positioning assembly;

[0019] S3, placing the segmented cutterhead auxiliary assembly device in the positioning assembly between the two side blocks, aligning the central axis of the segmented cutterhead auxiliary assembly device with the center between the two side blocks, adjusting the tool template to correspond to the position of the side blocks, rotating the tool template to different preset hob seat positions, and cooperating with the hob dummy to complete the positioning riveting of all the hob seat on the two side blocks;

[0020] S4. Repeat steps S1 to S3 to complete the positioning and riveting of the hob cutter seats on all the side blocks, and then complete the assembly between the side blocks and between the side blocks and the middle block of the cutter head with reference to the position of the hob cutter seats on the side blocks.

[0021] Optionally, in the block-type cutterhead assembly method, in step S1, the two side blocks in relative positions are adjusted to a flatness of ≤5 mm with the excavation surface facing upwards, with the excavation panel as a reference.

[0022] Optionally, in the block-type cutter disc assembly method, in step S2, before the cutter template is installed on the cutter mounting tool, the cutter mounting tool is adjusted to a horizontal state.

[0023] Optionally, in the block-type cutter disc assembly method, in step S3, the specific process of adjusting the position of the tool template corresponding to the edge block is to adjust the flatness of the tool template to ≤1mm, and adjust the tool template to cover the entire edge block along the radial direction of the cutter disc.

[0024] (3) Beneficial effects

[0025] The beneficial effects of the present invention are as follows: the auxiliary assembly device, assembly system and assembly method of the block-type cutterhead of the present invention utilize the central axis of the auxiliary assembly device to provide the same central reference, and at the same time, the height of the auxiliary assembly device is equal to the thickness of the cutterhead. With the cooperation of the tooling and the tool template, the accurate positioning of the hob cutter holder on each cutterhead block is completed, that is, the positioning and riveting of the hob cutter holder on each side block can be completed without using an intermediate block. At the same time, the auxiliary assembly device is used for positioning once, so that the hob cutter holders on at least two blocks can be assembled and riveted at the same time, avoiding positioning deviation caused by multiple alignment references, and reducing the time for lifting the blocks and adjusting the tooling; because the positioning process of the hob cutter holder does not use an intermediate block, it does not affect the subsequent machining time of the intermediate block; compared with the existing technology, the operation is simple and the construction period is shortened; the cutterhead assembly process is simplified, and the efficiency of the hob cutter holder riveting and cutterhead assembly is greatly improved; the positioning accuracy of the hob cutter holder is reliable, and the quality of the TBM cutterhead is guaranteed.

[0026] A fixed base is used to connect the auxiliary assembly device and the knife-installing tool, which is beneficial for the knife-installing tool to adjust the water state; at the same time, a limit block is set between the fixed base and the upper support to ensure that the fixed base and the upper support do not move in the horizontal direction, thereby ensuring that the knife-installing tool is positioned at the center of the auxiliary assembly device; the support part adopts ribs arranged at intervals to ensure the supporting function while reducing the weight of the auxiliary assembly device, making it convenient to move and use; the auxiliary assembly device has a simple structure, is easy to manufacture, and is conducive to popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A side view schematic diagram of a segmented cutterhead auxiliary assembly device according to embodiment 1 of the present invention, a segmented cutterhead auxiliary assembly device, an assembly system, and an assembly method;

[0028] Figure 2 for Figure 1 A top view schematic diagram of the segmented cutterhead auxiliary assembly device;

[0029] Figure 3 for Figure 2 A schematic cross-sectional view of the upper middle support member and the fixed base along the AA line;

[0030] Figure 4 for Figure 2 A schematic cross-sectional view of the upper middle support member and the fixed base along the BB;

[0031] Figure 5 This is a structural diagram of the assembly system of Example 2 of a segmented cutter disc auxiliary assembly device, assembly system and assembly method of the present invention.

[0032] [Description of Reference Numerals]

[0033] 1: Segmented cutter disc auxiliary assembly device; 11: Frame; 111: Lower support member; 112: Support member; 1121: Rib; 12: Upper support member; 13: Fixed base; 131: Second through hole; 14: Adjusting bolt; 15: Limit block; 2: Side block; 3: Cutting tool; 4: Cutting tool template. DETAILED DESCRIPTION

[0034] The embodiments of the present invention propose a block-type cutter disc auxiliary assembly device, assembly system and assembly method, which address the technical problems of the risk of alignment reference deviation, repeated operations, multiple reference alignment, complex process and long construction period in the assembly process of the existing TBM cutter disc hob cutter holder. The central axis of the auxiliary assembly device is used to provide the same central reference. At the same time, the height of the auxiliary assembly device is equal to the thickness of the cutter disc. With the cooperation of the tool mounting tool and the tool template, the precise positioning of the hob cutter holder on each cutter disc block is completed, that is, the positioning and riveting of the hob cutter holder on each side block can be completed without using an intermediate block. At the same time, by using the auxiliary assembly device for positioning once, the hob cutter holders on at least two blocks can be assembled and riveted at the same time, avoiding positioning deviation caused by multiple alignment of the reference, and reducing the adjustment time of the block lifting and tooling; since the positioning process of the hob cutter holder does not use the intermediate block, it does not affect the subsequent machining time of the intermediate block; compared with the existing technology, it is simple to operate and shortens the construction period; it simplifies the cutter head assembly process, greatly improving the efficiency of the hob cutter holder riveting and cutter head assembly; the hob cutter holder positioning accuracy is reliable, and the TBM cutter head quality is guaranteed at the same time.

[0035] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0036] Example 1:

[0037] Reference Figure 1 and Figure 2This embodiment provides a segmented cutter disc auxiliary assembly device, including a frame 11 and an upper support member 12. The upper support member 12 is horizontally arranged above the frame 11. The frame 11 plays a supporting role, and the support member 112 provides a horizontal support platform. The frame 11 and the upper support member 12 are both axially symmetrical along the same central vertical plane, and the frame 11 and the upper support member 12 are coaxially arranged along a vertical axis. The center position of the upper support member 12 is used to horizontally position the tooling 3 above the cutter disc position. In this way, the segmented cutter disc auxiliary assembly device can provide a stable center axis for the installation of the tooling 3, so that the subsequent tooling 3 can accurately position the hob cutter seat. The height of the auxiliary assembly device in the vertical direction is equal to the thickness of the cutter disc, which can simulate the thickness of the middle block in the segmented cutter disc, which is conducive to positioning the height of the tooling 3. That is, the auxiliary assembly device as a whole is an axisymmetric structure, and the position of its central axis represents the central axis of the entire cutter disc. The tool mounting tool 3 is installed and positioned to the central axis. Then, the distance extending from the central axis of the auxiliary assembly device along the tool mounting tool 3 to the periphery is equal to the distance extending radially outward from the center of the cutter disc. In this way, the position of the hob on the cutter disc side block 2 can be directly and accurately positioned by the self-auxiliary assembly device, and there is no need to repeatedly use the cutter disc middle block as a reference.

[0038] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 This embodiment provides a segmented cutter disc auxiliary assembly device, which also includes a fixed base 13. A second through hole 131 is opened on the fixed base 13 in the vertical direction. The second through hole 131 is coaxially arranged with the upper support member 12. The tool mounting tool 3 is installed in the second through hole 131. The fixed base 13 is adjustably arranged above the upper support member 12 in the vertical direction to adjust the horizontal state of the tool mounting tool 3.

[0039] Specifically, refer to Figure 2 The fixed base 13 and the upper support member 12 are connected around the central axis of the upper support member 12 using a plurality of spaced adjustment bolts 14 to adjust the horizontal position of the fixed base 13 relative to the upper support member 12, thereby indirectly adjusting the horizontal position of the tool attachment 3. A plurality of limit blocks 15 are vertically disposed between the fixed base 13 and the upper support member 12. The limit blocks 15 are located between the fixed base 13 and the upper support member 12 and are embedded within both the fixed base 13 and the upper support member 12 to provide a horizontal limit for the two, preventing horizontal displacement of the fixed base 13 and the upper support member 12. The plurality of limit blocks 15 correspond one-to-one to the plurality of adjustment bolts 14, which are inserted into the limit blocks 15. This allows the limit blocks 15 to be vertically constrained, ensuring that they function as limiters within the grooves of the fixed base 13 and the upper support member 12, thereby ensuring that the tool attachment 3 is positioned at the center of the auxiliary assembly device.

[0040] In addition, refer to Figure 2 The fixed base 13 and upper support 12 are both nearly square plates, with four adjustment bolts 14 and four limit blocks 15 at the four corners, allowing the fixed base 13 to be leveled from four directions. Furthermore, the fixed base 13 and upper support 12 are hollowed out and have semi-moon-shaped notches around them to reduce the weight of the tooling and facilitate assembly and hoisting.

[0041] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 This embodiment provides a block-type cutter disc auxiliary assembly device, wherein the frame 11 includes a support portion and a lower support member 111. The lower support member 111 and the upper support member 12 are arranged at both ends of the support portion in the vertical direction. The cross-sectional area of ​​the lower support member 111 is larger than the cross-sectional area of ​​the upper support member 12, and the support is more stable. The lower support member 111 may be a plate, a block structure, etc. The support portion includes at least four ribs 1121, and the four ribs 1121 are axially symmetrically distributed around the central axis of the upper support member 12. The two axially symmetrical ribs 1121 are located in the same vertical plane, which can provide symmetrical support and facilitate leveling of the fixed base 13. The rib 1121 is a trapezoidal plate that is larger at the top and smaller at the bottom. The side of the trapezoidal plate facing the central axis of the upper support member 12 forms an acute angle greater than 45° with the upper surface of the lower support member 111. The two symmetrically arranged ribs 1121 cooperate with the lower support member 111 and the upper support member 12 in the plane where they are located to form a stable supporting effect. At the same time, the supporting part adopts ribs 1121 arranged at intervals, which ensures the supporting effect while reducing the weight of the auxiliary assembly device, making it convenient to move and use.

[0042] Furthermore, in this embodiment, an upper support member 12 can replace the fixed base 13. A first through-hole (not labeled) is provided at the center of the upper support member 12 for vertically adjustable mounting of the tool holder 3, for example, via a threaded connection. In this case, the tool holder 3 can be leveled by mechanically adding a horizontal contact surface between the support member 12 and the tool holder 3 to ensure levelness.

[0043] In general, the auxiliary assembly device has a simple structure, is easy to manufacture, and is conducive to popularization and use.

[0044] Example 2:

[0045] Reference Figure 5 This embodiment provides a block-type cutter disc auxiliary assembly system, including the block-type cutter disc auxiliary assembly device 1 in Example 1, and also includes multiple edge blocks 2, a tool mounting tool 3, a tool template 4, multiple hob cutter seats and hob dummy cutters.

[0046] To explain, in the prior art, a segmented cutterhead is assembled from multiple side blocks and a central block, with multiple hobs distributed and mounted on the working surfaces of the side blocks via corresponding hob holders. Before installing the hobs, the hob holders must be positioned and installed, and then the hobs are mounted on the holders. A tooling fixture is typically located above the cutterhead's side blocks to position and support the tool template, which in turn positions and supports the hob dummy. The hob dummy is used to position the hob holder, which then positions and installs the hob holder in its pre-set position.

[0047] In this embodiment, every two side blocks 2 are placed horizontally relative to each other according to a preset position, and the segmented cutterhead auxiliary assembly device 1 is located at the same horizontal position as the two side blocks 2 and is located at the center between the two side blocks 2. The tooling 3 is arranged above the segmented cutterhead auxiliary assembly device 1, and the tooling 3 can rotate around the central axis of the segmented cutterhead auxiliary assembly device 1 to cover the cutterhead position where the side blocks 2 are located. In this way, by rotating the tooling 3 one circle, it can be moved to any position above the two symmetrically arranged side blocks 2, which is convenient for positioning and installation construction at different positions on the two side blocks 2.

[0048] Because the side blocks 2 of the cutter disc have a mechanical margin before assembly, the two opposite side blocks 2 can be installed with the hob cutter holder at the same time, which is different from the way of installing the hob cutter holder on two adjacent side blocks 2 at the same time without affecting each other.

[0049] The hob dummy knife can be detachably set under the tool template 4, and aligned with the preset position of the hob cutter seat on the edge block 2 under the rotation cooperation of the tool mounting tool 3; the hob cutter seat is positioned and installed to the corresponding preset position on the edge block 2 with the help of the hob dummy knife.

[0050] Example 3:

[0051] Reference Figure 5 This embodiment provides a method for assembling a segmented cutterhead, based on the segmented cutterhead auxiliary assembly system in Example 2. The specific steps are as follows:

[0052] S1. Place the two side blocks 2 at opposite positions on the cutter head at the same horizontal position according to the installation requirements, adjust the flatness, and determine the center between the two side blocks 2. Here, the two side blocks can be placed on a horizontal welding platform to facilitate subsequent construction work.

[0053] S2. Install the tooling fixture 3 to the center position of the upper support 112 of the segmented tool disc auxiliary assembly device 1, then install the tool template 4 onto the tooling fixture 3, adjust the flatness of the tool template 4, and assemble to obtain a positioning assembly.

[0054] S3. Place the segmented cutter disc auxiliary assembly device 1 in the positioning assembly between the two side blocks 2, align the central axis of the segmented cutter disc auxiliary assembly device 1 with the center between the two side blocks 2, adjust the tool template 4 to correspond to the position of the side block 2, rotate the tool template 4 to different preset hob seat positions, and cooperate with the hob dummy knife to complete the positioning riveting of all hob seat on the two side blocks 2.

[0055] S4. Repeat steps S1 to S3 to complete the positioning and riveting of the hob cutter holders on all side blocks 2. Refer to the position of the hob cutter holders on side blocks 2 and machine the side blocks 2 to complete the assembly between the side blocks 2 and between the side blocks 2 and the cutter head middle block. Refer to the position of the hob cutter holders on side blocks 2 to ensure more precise assembly between the side blocks 2 and between the side blocks 2 and the middle block.

[0056] Here, by adopting the above-mentioned assembly method and using the auxiliary assembly device 1 for positioning once, the cutter heads on at least two blocks can be assembled and riveted at the same time, avoiding positioning deviation caused by multiple alignment of the reference, and reducing the adjustment time of the block lifting and the tooling 3; since the positioning process of the cutter head does not use the intermediate block, it does not affect the subsequent machining time of the intermediate block; the operation is simple and the construction period is shortened; the cutter head assembly process is simplified, and the efficiency of the cutter head riveting and assembly is greatly improved; the positioning accuracy of the cutter head is reliable, and the quality of the TBM cutter head is guaranteed at the same time.

[0057] This embodiment provides a method for assembling a segmented cutterhead. In step S1, two side blocks 2 at opposite positions are adjusted to a flatness of ≤5 mm with the excavation surface facing upwards, with the excavation panel as a reference.

[0058] This embodiment provides a method for assembling a segmented cutter head. In step S2, before the cutter template 4 is installed on the cutter mounting tool 3, the cutter mounting tool 3 is adjusted to a horizontal state.

[0059] This embodiment provides a method for assembling a segmented cutter disc. In step S3, the specific process of adjusting the position of the tool template 4 and the edge block 2 is to adjust the flatness of the tool template 4 to ≤1mm and to adjust the tool template 4 to cover the entire edge block 2 along the radial direction of the cutter disc.

[0060] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0061] It should also be noted that because the assembly process of the segmented cutter disc is relatively complicated, this application only provides detailed descriptions of the positioning of the hob cutter seat and the splicing between the side block 2 and the middle block with the help of the auxiliary assembly device 1. If there are other unclear statements, please refer to the existing technology.

[0062] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0063] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0064] In the description of this specification, the terms "one embodiment", "some embodiments", "embodiments", "examples", "specific examples" or "some examples" refer to the specific features, structures, materials or characteristics described in conjunction with the embodiment or example and included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples, unless they are mutually inconsistent.

[0065] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A block-type cutterhead auxiliary assembly system, characterized in that: It comprises a block-type cutter disc auxiliary assembly device (1); it also comprises a plurality of edge blocks (2), a cutter mounting tool (3), a cutter template (4), a plurality of hob cutter holders and hob cutter dummy cutters; Every two edge blocks (2) are placed horizontally relative to each other according to a preset position; The block-type cutterhead auxiliary assembly device (1) is located at the same horizontal position as the two side blocks (2), and is located at the center between the two side blocks (2); The tooling tool (3) is arranged above the segmented cutter disc auxiliary assembly device (1), and the tooling tool (3) is capable of rotating around the central axis of the segmented cutter disc auxiliary assembly device (1) to cover the cutter disc position where the edge block (2) is located; A plurality of the hob cutter seats are used to be installed at corresponding preset positions on the edge block (2); The tool template (4) is arranged below the tool mounting fixture (3); The hob dummy knife equipped with the hob cutter seat can be detachably arranged below the tool template (4), and aligned with the preset position of the hob cutter seat on the edge block (2) under the rotation cooperation of the tool mounting tool (3); The hob cutter seat is positioned and installed at a corresponding preset position on the edge block (2) by means of the hob dummy cutter; The segmented cutterhead auxiliary assembly device (1) comprises a frame (11) and an upper support member (12); The upper support member (12) is horizontally arranged above the frame (11); The frame (11) and the upper support member (12) are both axially symmetrical along the same central vertical plane, and the frame (11) and the upper support member (12) are coaxially arranged along a vertical axis; The center position of the upper support member (12) is used to horizontally position the tooling to above the position of the cutter disc; The height of the segmented cutter disc auxiliary assembly device in the vertical direction is equal to the thickness of the cutter disc.

2. The block-type cutterhead auxiliary assembly system according to claim 1, characterized in that: A first through hole is provided at the center of the upper support member (12) for mounting a tool that is adjustable in the vertical direction.

3. The segmented cutterhead auxiliary assembly system according to claim 1, characterized in that: The segmented cutterhead auxiliary assembly device (1) further includes a fixed base (13); The fixed base (13) is adjustably arranged above the upper support member (12) in a vertical direction; A second through hole (131) is provided on the fixed base (13) in the vertical direction; The second through hole (131) is coaxially arranged with the upper support member (12) and is used for horizontally positioning the tooling fixture.

4. The segmented cutterhead auxiliary assembly system according to claim 3, characterized in that: The fixed base (13) and the upper support member (12) are connected around the central axis of the upper support member (12) using a plurality of adjustment bolts (14) arranged at intervals; A plurality of limit blocks (15) are provided between the fixed base (13) and the upper support member (12) in the vertical direction. The limit blocks (15) are located between the fixed base (13) and the upper support member (12) and are embedded in the fixed base (13) and the upper support member (12) to form a horizontal limit for the two. The plurality of limit blocks (15) correspond one-to-one to the plurality of adjusting bolts (14), and the adjusting bolts (14) are passed through the interior of the limit blocks (15).

5. The segmented cutterhead auxiliary assembly system according to claim 1, characterized in that: The frame (11) comprises a support portion (112) and a lower support member (111); The lower support member (111) and the upper support member (12) are arranged opposite to each other at two ends of the support portion (112) in the vertical direction; The cross-sectional area of ​​the lower support member (111) is greater than the cross-sectional area of ​​the upper support member (12); The support portion (112) includes at least four ribs (1121); At least four of the ribs (1121) are axially symmetrically distributed around the central axis of the upper support member (12); The two ribs (1121) are axially symmetrically distributed and located in the same vertical plane; The ribs are trapezoidal plates that are larger at the top and smaller at the bottom.

6. A method for assembling a block-type cutter head, characterized in that: Based on the block-type cutter head auxiliary assembly system according to any one of claims 1 to 5, the specific steps are as follows: S1, placing the two side blocks (2) at opposite positions on the cutter head at the same horizontal position relative to each other according to the installation requirements, adjusting the flatness, and determining the center between the two side blocks (2); S2, installing the tooling fixture (3) to the center position of the upper support member (12) of the block-type tool disc auxiliary assembly device (1), then installing the tool template (4) to the tooling fixture (3), adjusting the flatness of the tool template (4), and assembling to obtain a positioning assembly; S3, placing the block-type cutter disc auxiliary assembly device (1) in the positioning assembly body between the two side blocks (2), aligning the central axis of the block-type cutter disc auxiliary assembly device (1) with the center between the two side blocks (2), adjusting the tool template (4) to correspond to the position of the side blocks (2), rotating the tool template (4) to different preset positions of the hob cutter seat, and cooperating with the hob dummy to complete the positioning riveting of all the hob cutter seats on the two side blocks (2); S4, repeating steps S1 to S3, after completing the positioning and riveting of the hob cutter seats on all the side blocks (2), complete the assembly between the side blocks (2) and between the side blocks (2) and the middle block of the cutter head with reference to the position of the hob cutter seats on the side blocks (2).

7. The method for assembling a segmented cutter head according to claim 6, wherein: In step S1, the two side blocks (2) at relative positions are adjusted to a flatness of ≤5 mm with the excavation surface facing upwards, with the excavation panel as a reference.

8. The method for assembling a segmented cutter head according to claim 6, wherein: In step S2, before the tool mounting tool (3) is installed on the tool template (4), the tool mounting tool (3) is adjusted to a horizontal state.

9. The method for assembling a segmented cutter head according to claim 6, wherein: In step S3, the specific process of adjusting the position of the tool template (4) and the edge block (2) is to adjust the flatness of the tool template (4) to ≤1 mm and to adjust the tool template (4) to cover the entire edge block (2) along the radial direction of the cutter disc.

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