Adjustable shield tunneling machine cutterhead suitable for stratum with uneven hardness

Abstract

The utility model relates to an adjustable shield tunneling machine cutterhead suitable for stratum with uneven hardness, which comprises a cutterhead body, a cutter beam module and a hob module, the cutter beam module comprises a cross-shaped cutter beam, two first cutter beams and two second cutter beams, four partition intervals are formed by the cross-shaped cutter beam and the cutterhead body, and the cutter beam module and the hob module are arranged in the partition intervals. The two first cutter beams and the two second cutter beams are sequentially arranged in the four partition intervals in a pairwise spaced mode, the hob module comprises a center hob module, a front hob module, an edge hob module, a cutter module and an edge scraper module, and the center hob module is arranged in the center of the cross-shaped cutter beam; the front hob modules are arranged on four supporting beams of the cross-shaped cutter beam, the edge hob modules are arranged on the two first cutter beams and the two second cutter beams, the cutter modules are arranged on the two opposite side faces of the cross-shaped cutter beam and correspond to the front hob modules, and the edge scraper modules are arranged at the tail ends of the supporting beams of the cross-shaped cutter beam. The utility model can meet the use requirements of stratums with uneven hardness, and improves the construction efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to shield machine cutter technical field, concretely relates to an adjustable shield machine cutter head suitable for uneven soft and hard stratum. BACKGROUND

[0002] The shield machine is a tunnel boring machine using shield method. The shield construction method is that the tunnel boring machine constructs (lays) the shield (refers to the supporting segment) while tunneling, which is different from the open construction method. In the international community, the broad sense shield machine can also be used in rock stratum, which is only different from the open (non-shield method) tunnel boring machine. In China, the tunnel boring machine used in soft soil stratum is usually called (narrow sense) shield machine, and the one used in rock stratum is called (narrow sense) full-face hard rock tunnel boring machine.

[0003] The existing shield machine cutter cannot continuously excavate in the horizontal position when encountering uneven soft and hard stratum during use, which not only makes the construction difficult to proceed, but also damages the parts in the shield machine cutter, thereby reducing the construction efficiency. UTILITY MODEL CONTENT

[0004] To solve the problems in the background art, the utility model provides an adjustable shield machine cutter head suitable for uneven soft and hard stratum, which can meet the use requirements of uneven soft and hard stratum and improve the construction efficiency.

[0005] To solve the above problems, the utility model adopts the following technical scheme: an adjustable shield machine cutter head suitable for uneven soft and hard stratum, comprising a cutter body in a box structure, a cutter beam module is installed on the front face of the cutter body, a roller cutter module is installed on the cutter beam module, the cutter beam module comprises a cross cutter beam, two first cutter beams and two second cutter beams, the cross cutter beam is arranged in the radial direction along the front face of the cutter body, four partition intervals are formed between the cross cutter beam and the cutter body, the two first cutter beams and the two second cutter beams are sequentially and alternately arranged in the four partition intervals, the roller cutter module comprises a center roller cutter module, a front roller cutter module, an edge roller cutter module, a cutter module and an edge scraper module, the center roller cutter module is arranged at the center of the cross cutter beam, the front roller cutter module is arranged on the four support beams of the cross cutter beam, the edge roller cutter module is arranged on the two first cutter beams and the two second cutter beams, the cutter module is arranged on the two opposite sides of the cross cutter beam and corresponds to the front roller cutter module, and the edge scraper module is arranged at the end of the support beam of the cross cutter beam.

[0006] Further, the edge hobbing module comprises four eccentric hobs and six standard hobs, the first two tool beams are provided with the eccentric hobs and the standard hobs, the second two tool beams are provided with the eccentric hobs and two standard hobs, and the two eccentric hobs on the first two tool beams are centrally symmetric, and the eccentric hobs on the second two tool beams are arranged between the two standard hobs.

[0007] Further, the four partition intervals are provided with wear-resistant composite steel plates, and the edge hobbing module is arranged on the wear-resistant composite steel plates.

[0008] Further, the four wear-resistant composite steel plates are Y-shaped structures.

[0009] Further, the cross-shaped tool beam and the wear-resistant composite steel plate are provided with foam injection ports, and the foam injection ports are provided with nozzle protection knives.

[0010] Further, the center hobbing module comprises eight center hobs arranged at intervals, the interval of each center hob is 90 mm, and the tool height is 175 mm.

[0011] Further, the front hobbing module comprises 23 front hobs, the three supporting beams of the cross-shaped tool beam are provided with eight front hobs, and the other supporting beam is provided with seven front hobs, the interval between the front hobs is 90 mm, and the tool height is 175 mm.

[0012] Further, the cutter module comprises 32 cutters, the two opposite sides of the four supporting beams of the cross-shaped tool beam are provided with four cutters, the cutter width is 250 mm, the cutter interval is 240 mm, and the tool height is 140 mm.

[0013] Further, the edge scraper module comprises eight pairs of edge scrapers, the ends of the four supporting beams of the cross-shaped tool beam are provided with two pairs of edge scrapers, and the tool height of the edge scrapers is 140 mm.

[0014] Further, the opening rate of the cutter head body is 38%.

[0015] The utility model discloses the cooperation of center hobbing module, front hobbing module, edge hobbing module, cutter module and edge scraper module can adjust the tool type and quantity in time to the different stratum situation encountered in the construction process, carries out the combination configuration of different tools, compared with the prior art, the utility model discloses reduce the structure size, increase the opening rate of big dish, improve the wear resistance of whole cutter head body, adopt different tool configuration to can adapt to different geological conditions, improve work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model is further illustrated below in combination with the drawings and embodiments.

[0017] Figure 1 It is the structural schematic diagram of the utility model.

[0018] 1, cutter head body;2, cutter beam module;3, hobbing cutter module;4, cross cutter beam;5, first cutter beam;6, second cutter beam;7, center hobbing cutter module;8, front hobbing cutter module;9, edge hobbing cutter module;10, cutting knife module;11, edge scraper module;12, wear-resistant composite steel plate;13, alloy wear-resistant plate;14, foam injection port;15, nozzle protection knife. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] The utility model discloses the cooperation of center hobbing cutter module 7, front hobbing cutter module 8, edge hobbing cutter module 9, cutting knife module 10 and edge scraper module 11 can adjust the tool type and quantity in time to the different stratum situation encountered in the construction process, carry out the combination configuration of different tools, compared with prior art, the utility model reduces the structure size, increases the open rate of big dish, improves the wear resistance of whole cutter head body 1, adopts different tool configuration to adapt to different geological conditions, improves the work efficiency.

[0021] Specifically, as Figure 1As shown, a shield tunneling machine cutter head suitable for soft and hard uneven stratum, including box structure cutter head body 1, the front of the cutter head body 1 is provided with cutter beam module 2, the cutter beam module 2 is provided with cutter module 3, the cutter beam module 2 includes cross cutter beam 4, two first cutter beam 5 and two second cutter beam 6, the cross cutter beam 4 is arranged along the front of the cutter head body 1 radially, the cross cutter beam 4 and the cutter head body 1 form four partition intervals, two first cutter beam 5 and two second cutter beam 6 are sequentially and alternately arranged in four partition intervals, the cutter module 3 includes center cutter module 7, front cutter module 8, edge cutter module 9, cutter module 10 and edge scraper module 11, the center cutter module 7 is arranged at the center of the cross cutter beam 4, the front cutter module 8 is arranged on the four support beams of the cross cutter beam 4, the edge cutter module 9 is arranged on two first cutter beam 5 and two second cutter beam 6, the cutter module 10 is arranged on two opposite sides of the cross cutter beam 4 and corresponds to the front cutter module 8, and the edge scraper module 11 is arranged at the end of the support beam of the cross cutter beam 4.

[0022] Further, the edge cutter module 9 includes four eccentric cutters and six standard cutters, two first cutter beam 5 is provided with the eccentric cutter and the standard cutter, two second cutter beam 6 is provided with the eccentric cutter and two standard cutters, wherein the two eccentric cutters on two first cutter beam 5 are centrally symmetric, and the eccentric cutters on two second cutter beam 6 are arranged between two standard cutters.

[0023] Further, four partition intervals are welded with wear-resistant composite steel plates 12, the edge cutter module 9 is arranged on the wear-resistant composite steel plate 12, and the peripheral edge of the cutter head body 1 is welded with alloy wear-resistant plates 13.

[0024] Further, four wear-resistant composite steel plates 12 are Y-shaped structures.

[0025] Further, the cross cutter beam 4 and the wear-resistant composite steel plate 12 are provided with foam injection ports 14, and the foam injection ports 14 are provided with nozzle protection knives 15.

[0026] Further, the center cutter module 3 includes eight center cutters arranged at intervals, the interval of each center cutter is 90mm, and the cutter height is 175mm.

[0027] Further, the front cutter module 3 includes 23 front cutters, wherein eight front cutters are arranged on three support beams of the cross cutter beam 4, seven front cutters are arranged on another support beam, the interval of two front cutters is 90mm, and the cutter height is 175mm.

[0028] Further, the cutter module 10 includes 32 cutters, wherein two opposite sides of each of the four supporting beams of the cross cutter beam 4 are provided with 4 cutters, the cutter width is 250mm, the cutter spacing is 240mm, and the cutter height is 140mm.

[0029] Further, the edge scraper module includes 8 pairs of edge scrapers, and the end of each of the four supporting beams of the cross cutter beam 4 is provided with 2 pairs of edge scrapers, and the cutter height of the edge scraper is 140mm.

[0030] Further, the opening rate of the cutter disc body 1 is 38%.

[0031] The center cutter module 7, the front cutter module 8, the edge cutter module 9, the cutter module 10 and the edge scraper module 11 are matched, the types and the number of cutters can be adjusted in time for different stratum conditions encountered in the construction process, the combination and configuration of different cutters are carried out, compared with the prior art, the structure size is reduced, the opening rate of the disc is increased, the wear resistance of the whole cutter disc body 1 is improved, different cutter configurations can adapt to different geological conditions, and the working efficiency is improved.

[0032] The above only describes preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An adjustable shield machine cutter suitable for uneven soft and hard strata, comprising a box-shaped cutter body (1), a cutter beam module (2) is installed on the front face of the cutter body (1), and a roller cutter module (3) is installed on the cutter beam module (2), characterized in that: The cutter beam module (2) comprises a cross cutter beam (4), two first cutter beams (5) and two second cutter beams (6), the cross cutter beam (4) is arranged radially along the front face of the cutter disc body (1), the cross cutter beam (4) is formed with four partition intervals with the cutter disc body (1), two first cutter beams (5) and two second cutter beams (6) are arranged in the four partition intervals in sequence two by two, the cutter disc module (3) comprises a center cutter module (7), a front cutter module (8), an edge cutter module (9), a cutter module (10) and an edge scraper module (11), the center cutter module (7) is arranged at the center of the cross cutter beam (4), the front cutter module (8) is arranged on the four support beams of the cross cutter beam (4), the edge cutter module (9) is arranged on the two first cutter beams (5) and the two second cutter beams (6), the cutter module (10) is arranged on the two opposite sides of the cross cutter beam (4) and corresponds to the front cutter module (8), and the edge scraper module (11) is arranged at the end of the support beam of the cross cutter beam (4).

2. The adjustable shield machine cutter head suitable for soft and hard uneven strata according to claim 1, characterized in that: The edge cutter module (9) comprises four eccentric cutters and six standard cutters, two first cutter beams (5) are provided with the eccentric cutters and the standard cutters, and two second cutter beams (6) are provided with the eccentric cutters and two standard cutters, wherein the two eccentric cutters on the two first cutter beams (5) are centrally symmetric, and the eccentric cutters on the two second cutter beams (6) are arranged between the two standard cutters.

3. The adjustable shield machine cutter head for use in soft and hard uneven strata according to claim 1, characterized in that: Four partition intervals are welded with wear-resistant composite steel plates (12), the edge cutter module (9) is arranged on the wear-resistant composite steel plates (12), and the peripheral edge of the cutter disc body (1) is welded with an alloy wear-resistant plate (13).

4. The adjustable shield machine cutter head for use in soft and hard uneven strata according to claim 3, characterized in that: The four wear-resistant composite steel plates (12) are Y-shaped structures.

5. The adjustable shield machine cutter head for use in soft and hard uneven strata according to claim 3, characterized in that: The cross cutter beam (4) and the wear-resistant composite steel plate (12) are provided with foam injection ports (14), and the foam injection ports (14) are provided with nozzle protection knives (15).

6. The adjustable shield machine cutter head for use in soft and hard uneven strata according to claim 1, characterized in that: The center cutter module (3) comprises eight center cutters arranged at intervals, the interval of each center cutter is 90mm, and the cutter height is 175mm.

7. The adjustable shield machine cutter head for use in soft and hard uneven strata according to claim 1, characterized in that: The front cutter module (3) comprises 23 front cutters, wherein eight front cutters are arranged on each of the three support beams of the cross cutter beam (4), seven front cutters are arranged on the other support beam, the interval between the front cutters is 90mm, and the cutter height is 175mm.

8. The adjustable shield machine cutter head for use in soft and hard uneven strata according to claim 1, characterized in that: The cutter module (10) comprises 32 cutters, wherein four cutters are arranged on the two opposite sides of each of the four support beams of the cross cutter beam (4), the cutter width is 250mm, the cutter interval is 240mm, and the cutter height is 140mm.

9. The adjustable shield machine cutter head for use in soft and hard uneven strata according to claim 1, characterized in that: The edge scraper module comprises eight pairs of edge scrapers, two pairs of edge scrapers are arranged at the ends of the four support beams of the cross cutter beam (4), and the cutter height of the edge scrapers is 140mm.

10. The adjustable shield machine cutter head for use in soft and hard uneven strata according to claim 1, characterized in that: The opening rate of the cutter disc body (1) is 38%.

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