A standard modular cutterhead and its conversion operation method

Abstract

The present invention discloses a standard modular cutterhead and a conversion operation method thereof, wherein the modular cutterhead comprises a main drive connection ring plate and a cutterhead detachably mounted on the main drive connection ring plate, wherein the cutterhead is one of cutterhead a, cutterhead b, and cutterhead c. The advantages of the present invention are: compared with an integral cutterhead, the modular cutterhead has strong adaptability, low shield construction cost, and little impact on the construction period, and is applied in engineering practice, greatly improving the interchangeability of the cutterhead, saving construction costs, and generating good social and economic benefits and reputation.

Description

Technical Field

[0001] The invention relates to the field of modular design and assembly of a shield machine cutter head, and in particular to a standard modular cutter head and a conversion operation method thereof. Background Art

[0002] The shield machine is a special engineering machine for tunneling. Its advantage is that it is suitable for the construction of pipeline tunnels with great depth, long distance and various diameters. The cutterhead of the shield machine is the core part of the smooth tunneling of the shield machine.

[0003] In the past, when the shield machine was excavating, if the shield machine cutterhead was not suitable for the stratum geology, it was necessary to replace the integral cutterhead that was suitable for the stratum. Since the integral cutterhead has a long production cycle and high consumption cost, replacing the integral cutterhead will greatly increase the construction cycle and economic cost. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a standard modular cutter disc and a conversion operation method thereof. The standard modular cutter disc is achieved by modularly modifying and manufacturing the cutter disc components and by combining different cutter disc modules to meet the requirements of different working environments.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] A standard modular cutter disc, characterized in that the modular cutter disc comprises a main drive connecting ring plate and a cutter disc detachably mounted on the main drive connecting ring plate, wherein the cutter disc is one of cutter disc a, cutter disc b, and cutter disc c; wherein:

[0007] The cutter disc a comprises a cutter disc central panel, six cutter disc spokes I, six cutter disc outer peripheral ring plates and six cutter disc rib plates. Six connecting pins are distributed at equal angles on the outer edge of the cutter disc central panel. Each of the cutter disc spokes I is correspondingly mounted on the connecting pins. Each of the cutter disc outer peripheral ring plates is arc-shaped and is respectively mounted between the outer ends of adjacent cutter disc spokes I to form an outer ring of the cutter disc a as a whole. Each of the cutter disc rib plates is arc-shaped and is respectively mounted between the middle parts of adjacent cutter disc spokes I to form an inner ring of the cutter disc a as a whole.

[0008] The cutter disc b comprises a cross-shaped cutter disc center panel, four cutter disc spokes II and four fan-shaped cutter disc assemblies, the four cutter disc spokes II are respectively mounted on the cross-shaped cutter disc center panel, and the four fan-shaped cutter disc assemblies are respectively mounted between adjacent cutter disc spokes II;

[0009] The cutter disc c includes a cross-shaped cutter disc center panel, four cutter disc spokes II, two fan-shaped cutter disc assemblies, two peripheral connecting blocks and two inner peripheral connecting blocks. The four cutter disc spokes II are respectively installed on the cross-shaped cutter disc center panel, and every two adjacent cutter disc spokes II enclose a right-angled fan-shaped partition, which separates a total of four right-angled fan-shaped partitions; two fan-shaped cutter disc assemblies are installed in two obliquely symmetrical right-angled fan-shaped partitions, and the two peripheral connecting blocks and the two inner connecting blocks are respectively installed in the remaining two right-angled fan-shaped partitions to connect the outer ends and the middle parts of the adjacent cutter disc spokes II.

[0010] A detachable connection assembly is used between the cutter disc spoke I and the cutter disc outer peripheral plate, and the detachable connection assembly includes a first connection member and a second connection member. The first connection member is positioned on the cutter disc spoke I via a long pin shaft member and is fixed to the cutter disc spoke I via a plurality of bolt members. The second connection member is positioned on the cutter disc outer peripheral plate via a short pin shaft member and is fixed to the cutter disc outer peripheral plate via a plurality of bolt members. The connection between the cutter disc spoke I and the cutter disc outer peripheral plate is achieved by welding between the first connection member and the second connection member.

[0011] The connection between the blade disc spoke II and the fan-shaped blade disc assembly, and the connection between the blade disc spoke II and the peripheral connecting block both adopt the detachable connecting assembly.

[0012] The main drive connecting ring plate is connected to the cutter disc via a plurality of cutter disc brackets.

[0013] A conversion operation method involving any of the standard modular cutter discs, characterized in that the conversion operation method includes installing cutter disc a, converting from cutter disc a to cutter disc b, and converting from cutter disc b to cutter disc c, wherein:

[0014] The installation steps of the cutter disc a are as follows: six cutter disc brackets are installed on the main drive connecting ring plate, six cutter disc spokes I are installed on each of the cutter disc brackets respectively, six connecting pins of the cutter disc center panel are connected together respectively with each of the cutter disc spokes I, each cutter disc outer peripheral ring plate is installed between the outer ends of adjacent cutter disc spokes I through a detachable connecting component to form an outer ring of the cutter disc a as a whole, and each cutter disc rib plate is installed between the middle parts of adjacent cutter disc spokes I through the detachable connecting component to form an inner ring of the cutter disc a as a whole, thereby forming the cutter disc a;

[0015] The steps of converting the cutter disc a to the cutter disc b are as follows: removing the outer peripheral plates of each cutter disc, the rib plates of each cutter disc, the detachable connecting components, the cutter disc spokes I and the cutter disc center panel; installing the cutter disc spokes II on the four cutter disc brackets respectively, connecting the four pins of the cross-shaped cutter disc center panel to the four cutter disc spokes II respectively, and installing the four fan-shaped cutter disc components between the adjacent cutter disc spokes II via the detachable connecting components to form the cutter disc b;

[0016] The steps for transferring from the blade disc b to the blade disc c are as follows: removing the two fan-shaped blade disc assemblies that are symmetrically distributed at an oblique angle on the blade disc b, and then installing the outer connecting blocks and the inner connecting blocks in the right-angled fan-shaped partition from which the fan-shaped blade disc assembly was removed via detachable connecting assemblies to form the blade disc c.

[0017] The beneficial effects of the present invention are as follows: the standard modular cutter disc is applied in engineering practice, which greatly improves the interchangeability of the cutter disc, saves construction costs, and can produce better social and economic benefits and reputation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a cutter disc 1a of a standard modular cutter disc in the present invention;

[0019] Figure 2 It is a side view of the cutter head 1a of the present invention;

[0020] Figure 3 It is a structural schematic diagram of a cutter disc 1b of a standard modular cutter disc in the present invention;

[0021] Figure 4 It is a side view of the cutter head 1b of the present invention;

[0022] Figure 5 It is a schematic structural diagram of a cutter disc 1c of a standard modular cutter disc in the present invention;

[0023] Figure 6 It is a side view of the cutter head 1c of the present invention;

[0024] Figure 7 It is a schematic diagram of the connection between the outer peripheral ring plate of the cutter disc and the spokes of the cutter disc in the present invention;

[0025] Figure 8 A schematic diagram of a first connecting member and a second connecting member in a detachable connecting assembly structure of the present invention;

[0026] Fig. 9 This is a detailed diagram of the end interface of the first connecting member in the present invention. DETAILED DESCRIPTION

[0027] The features of the present invention and other related features are further described in detail below through embodiments in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

[0028] like Figure 1-9 In the figure, the reference numerals are respectively: cutter disc 1a, cutter disc 1b, cutter disc 1c, cutter disc outer ring plate 2, cutter disc rib plate 3, cutter disc spoke 4, cutter disc center panel 5, cutter disc bracket 6a, cutter disc bracket 6b, main drive connecting ring plate 7, fan-shaped cutter disc assembly 8, cutter disc spoke 9, cross-shaped cutter disc center panel 10, outer peripheral connecting block 11, inner peripheral connecting block 12, first connecting member 13, second connecting member 14, long pin shaft member 15, short pin shaft member 16, bolt member 17.

[0029] Example: Figure 1-9 As shown, the present embodiment specifically relates to a standard modular cutter disc and a conversion operation method thereof. The standard modular cutter disc mainly includes a main drive connecting ring plate 7 and a cutter disc detachably mounted on the main drive connecting ring plate 7 through cutter disc brackets 6a and 6b. The cutter disc can be one of the cutter disc 1a, cutter disc 1b, and cutter disc 1c, which can be converted into each other.

[0030] like Figure 1 , 2 As shown, the blade disc 1a includes a blade disc center panel 5, six blade disc spokes 4, six blade disc outer peripheral ring plates 2 and six blade disc ribs 3. Six connecting pins are distributed at equal angles on the outer edge of the blade disc center panel 5. Each blade disc spoke 4 is respectively installed on each connecting pin of the blade disc center panel 5. Each blade disc outer peripheral ring plate 2 is arc-shaped and is respectively installed between the outer ends of adjacent blade disc spokes 4 to form an outer ring of the blade disc 1a as a whole. Each blade disc rib 3 is arc-shaped and is respectively installed between the middle parts of adjacent blade disc spokes 4 to form an inner ring of the blade disc 1a as a whole. It should be noted that the blade disc outer peripheral ring plate 2 and the blade disc spokes 4 are connected by a detachable connecting component, and the blade disc ribs 3 and the blade disc spokes 4 are also connected by a detachable connecting component, and accessories are correspondingly provided on the blade disc ribs 3 and the blade disc outer peripheral ring plate 2.

[0031] like Figure 3 , 4 As shown, the cutter disc 1b includes a cross-shaped cutter disc center panel 10, four cutter disc spokes 9 and four fan-shaped cutter disc assemblies 8. The four cutter disc spokes 9 are respectively installed on the cross-shaped cutter disc center panel 10, and the four fan-shaped cutter disc assemblies 8 are respectively installed between adjacent cutter disc spokes 9. It should be noted that during the installation process, the fan-shaped cutter disc assembly 8 and the cutter disc spokes 9 are connected and fixed by a detachable connecting assembly.

[0032] like Figure 5 , 6As shown, the cutter disc 1c includes a cross-shaped cutter disc center panel, four cutter disc spokes 9, two fan-shaped cutter disc assemblies 8, two peripheral connecting blocks 12 and two inner peripheral connecting blocks 11. The four cutter disc spokes 9 are respectively installed on the cross-shaped cutter disc center panel 10, and each two adjacent cutter disc spokes 9 enclose a right-angled fan-shaped partition, which separates a total of four right-angled fan-shaped partitions; the two fan-shaped cutter disc assemblies are installed in two obliquely symmetrical right-angled fan-shaped partitions, and the two peripheral connecting blocks 12 and the two inner peripheral connecting blocks 11 are respectively installed in the remaining two right-angled fan-shaped partitions to connect the outer ends and the middle parts of the adjacent cutter disc spokes 9; it should be noted that during the installation process, the fan-shaped cutter disc assembly 8 and the cutter disc spokes 9 are connected and fixed by a detachable connecting assembly, the peripheral connecting block 12 and the cutter disc spokes 9 are also connected and fixed by the detachable connecting assembly, and the inner peripheral connecting block 11 and the cutter disc spokes 9 are also connected and fixed by the detachable connecting assembly.

[0033] like Figure 7-9 As shown, the detachable connecting component structure in this embodiment is illustrated by the connection between the cutter disc outer peripheral ring plate 2 and the cutter disc spoke 4 in the cutter disc 1a. The detachable connecting component includes a first connecting member 13 and a second connecting member 14. The first connecting member 13 is positioned on the cutter disc spoke 4 via a long pin shaft member 15 and is fixed to the cutter disc spoke 4 via a plurality of bolt members 17. The second connecting member 14 is positioned on the cutter disc outer peripheral ring plate 2 via a short pin shaft member 16 and is fixed to the cutter disc outer peripheral ring plate 2 via a plurality of bolt members 17. The connection between the cutter disc spoke 4 and the cutter disc outer peripheral ring plate 2 is realized between the first connecting member 13 and the second connecting member 14 according to the diagonal welding principle. After watertight welding and fixation, the detachable connecting component installation between the cutter disc outer peripheral ring plate 2 and the cutter disc spoke 4 is realized.

[0034] like Figure 1-9 As shown, the conversion operation method of the standard modular cutter disc in this embodiment includes the installation of the cutter disc 1a, the conversion from the cutter disc 1a to the cutter disc 1b, and the conversion from the cutter disc 1b to the cutter disc 1c, wherein:

[0035] The installation steps of the cutter disc 1a are as follows: six cutter disc corbels (cutter disc corbel 6a, cutter disc corbel 6b) are installed on the main drive connecting ring plate 7, six cutter disc spokes 4 are installed on each cutter disc corbel respectively, six connecting pins of the cutter disc center panel 5 are connected together with each cutter disc spoke 4 respectively, each cutter disc outer ring plate 2 is installed between the outer ends of adjacent cutter disc spokes 4 through a detachable connecting component to form an integral outer ring of the cutter disc 1a, each cutter disc rib plate 3 is installed between the middle parts of adjacent cutter disc spokes 4 through a detachable connecting component to form an integral inner ring of the cutter disc 1a, and the cutter disc 1a is formed.

[0036] The steps of converting the cutter disc 1a to the cutter disc 1b are as follows: removing each cutter disc outer peripheral plate 2, each cutter disc rib plate 3, each detachable connection assembly, each cutter disc spoke 4 and the cutter disc center panel 5; installing the cutter disc spokes 9 on the four cutter disc brackets 6a respectively, connecting the four pins of the cross-shaped cutter disc center panel 10 respectively with the four cutter disc spokes 9, and installing the four fan-shaped cutter disc assemblies 8 between the adjacent cutter disc spokes 9 via the detachable connection assembly to form the cutter disc 1b;

[0037] The steps for converting from cutter disc 1b to cutter disc 1c are as follows: remove two obliquely symmetrically distributed fan-shaped cutter disc assemblies 8 on cutter disc 1b, and then install the outer connecting block 12 and the inner connecting block 11 in the right-angled fan-shaped partition where the fan-shaped cutter disc assembly 8 is removed through the detachable connecting assembly to form cutter disc 1c.

[0038] The modes of the cutter disc 1a, the cutter disc 1b and the cutter disc 1c can be switched to each other according to the above steps or in reverse order.

[0039] It should be noted that the cutter disc 1a, cutter disc 1b, and cutter disc 1c in this embodiment have different formation adaptability working conditions. Specifically, the cutter disc 1a is suitable for sand, soil, pebbles and other formations; the cutter disc 1b is suitable for silty clay, silt, silt sand and other formations; the cutter disc 1c is suitable for silty clay, silt, silt sand and other formations containing pebbles, boulders, etc.

Claims

1. A standard modular cutterhead, characterized in that The modular cutterhead includes a main drive connecting ring plate and a cutterhead detachably mounted on the main drive connecting ring plate, and the cutterhead can be converted from cutterhead a to cutterhead b and from cutterhead b to cutterhead c; wherein: The cutter disc a comprises a cutter disc central panel, six cutter disc spokes I, six cutter disc outer peripheral ring plates and six cutter disc rib plates. Six connecting pins are distributed at equal angles on the outer edge of the cutter disc central panel. Each of the cutter disc spokes I is correspondingly mounted on the connecting pins. Each of the cutter disc outer peripheral ring plates is arc-shaped and is respectively mounted between the outer ends of adjacent cutter disc spokes I to form an outer ring of the cutter disc a as a whole. Each of the cutter disc rib plates is arc-shaped and is respectively mounted between the middle parts of adjacent cutter disc spokes I to form an inner ring of the cutter disc a as a whole. The cutter disc b comprises a cross-shaped cutter disc center panel, four cutter disc spokes II and four fan-shaped cutter disc assemblies, the four cutter disc spokes II are respectively mounted on the cross-shaped cutter disc center panel, and the four fan-shaped cutter disc assemblies are respectively mounted between adjacent cutter disc spokes II; The cutter disc c comprises a cross-shaped cutter disc central panel, four cutter disc spokes II, two fan-shaped cutter disc assemblies, two peripheral connecting blocks and two inner peripheral connecting blocks. The four cutter disc spokes II are respectively mounted on the cross-shaped cutter disc central panel, and each two adjacent cutter disc spokes II enclose a right-angled fan-shaped partition, thereby separating four right-angled fan-shaped partitions in total. The two fan-shaped cutter disc assemblies are mounted in two obliquely symmetrical right-angled fan-shaped partitions, and the two peripheral connecting blocks and the two inner connecting blocks are respectively mounted in the remaining two right-angled fan-shaped partitions to connect the outer ends and the middle parts of the adjacent cutter disc spokes II. The conversion operation of the modular cutter disc includes the installation of the cutter disc a, the conversion from the cutter disc a to the cutter disc b, and the conversion from the cutter disc b to the cutter disc c; the cutter disc a, the cutter disc b, and the cutter disc c respectively have different formation adaptability working conditions; the inner peripheral connecting block and the cutter disc spoke II are connected and fixed by a detachable connecting component.

2. A standard modular cutterhead according to claim 1, characterized in that A detachable connection assembly is used between the cutter disc spoke I and the cutter disc outer peripheral plate, and the detachable connection assembly includes a first connection member and a second connection member. The first connection member is positioned on the cutter disc spoke I via a long pin shaft member and is fixed to the cutter disc spoke I via a plurality of bolt members. The second connection member is positioned on the cutter disc outer peripheral plate via a short pin shaft member and is fixed to the cutter disc outer peripheral plate via a plurality of bolt members. The connection between the cutter disc spoke I and the cutter disc outer peripheral plate is achieved by welding between the first connection member and the second connection member.

3. A standard modular cutterhead according to claim 2, characterized in that The connection between the blade disc spoke II and the fan-shaped blade disc assembly, and the connection between the blade disc spoke II and the peripheral connecting block both adopt the detachable connecting assembly.

4. A standard modular cutterhead according to claim 1, characterized in that The main drive connecting ring plate is connected to the cutter disc via a plurality of cutter disc brackets.

5. A method for converting a standard modular cutterhead according to any one of claims 1 to 4, characterized in that The conversion operation method includes installing a cutter disc a, converting from the cutter disc a to the cutter disc b, and converting from the cutter disc b to the cutter disc c, wherein: The installation steps of the cutter disc a are as follows: six cutter disc brackets are installed on the main drive connecting ring plate, six cutter disc spokes I are installed on each of the cutter disc brackets respectively, six connecting pins of the cutter disc center panel are connected together respectively with each of the cutter disc spokes I, each cutter disc outer peripheral ring plate is installed between the outer ends of adjacent cutter disc spokes I through a detachable connecting component to form an outer ring of the cutter disc a as a whole, and each cutter disc rib plate is installed between the middle parts of adjacent cutter disc spokes I through the detachable connecting component to form an inner ring of the cutter disc a as a whole, thereby forming the cutter disc a; The steps of converting the cutter disc a to the cutter disc b are as follows: removing the outer peripheral plates of each cutter disc, the rib plates of each cutter disc, the detachable connecting components, the cutter disc spokes I and the cutter disc center panel; installing the cutter disc spokes II on the four cutter disc brackets respectively, connecting the four pins of the cross-shaped cutter disc center panel to the four cutter disc spokes II respectively, and installing the four fan-shaped cutter disc components between the adjacent cutter disc spokes II via the detachable connecting components to form the cutter disc b; The steps for transferring from the blade disc b to the blade disc c are as follows: removing the two fan-shaped blade disc assemblies that are symmetrically distributed at an oblique angle on the blade disc b, and then installing the outer connecting blocks and the inner connecting blocks in the right-angled fan-shaped partition from which the fan-shaped blade disc assembly was removed via detachable connecting assemblies to form the blade disc c.

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