Shield cutter head with cutters arranged in layered and multi-point mode

Abstract

The utility model relates to the technical field of shield cutterheads, and discloses a shield cutterhead with cutters arranged in a layered multi-point mode, the shield cutterhead comprises a shield cutterhead main body, a crushing mechanism is arranged on the surface of the top of the shield cutterhead main body, an installation mechanism is arranged at the bottom of the shield cutterhead main body, and a supporting column is arranged in the installation mechanism. According to the shield cutterhead with the cutters arranged in the layered and multi-point mode, through the arranged crushing mechanism and the arranged tearing cutters arranged in the layered and multi-point mode, when the shield cutterhead body encounters hard rocks, the hard rocks can be rapidly crushed, and therefore the purpose that the shield cutterhead body normally advances can be achieved; according to the shield cutter head, under the cooperation of the cutter, the center cutter, the gauge protection cutter and the main cutter, the stress of the shield cutter head main body can be reduced, so that the abrasion degree of the shield cutter head main body is reduced, and the shield cutter head main body can be detached and maintained in time when the shield cutter head main body is damaged through the arranged mounting mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of shield cutter discs, in particular to a shield cutter disc with cutters arranged in layers and multiple points. Background Art

[0002] The shield machine is a tunnel boring machine that uses the shield method. The shield method is that the tunnel boring machine builds (lays) the tunnel "shield" (referring to the supporting segments) while excavating. It is different from

[0003] Open construction method. Internationally, the general shield machine can also be used in rock formations, but it is different from

[0004] Open (non-shield) tunnel boring machine. In my country, tunnel boring machines used in soft soil are usually called (narrowly defined) shield machines.

[0005] The shield cutterhead is the main component of the shield machine and is mainly used for tunnel mining. The cutters on the existing shield cutterheads are mostly arranged in a single layer. When encountering hard rock, it is difficult to crush it quickly, which reduces the efficiency of rock crushing and has defects. Utility Model Content

[0006] The utility model aims to provide a shield cutter head with cutters arranged in layers and multiple points, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shield cutter head with cutters arranged in layers and multiple points, comprising a shield cutter head body, a crushing mechanism is arranged on the top surface of the shield cutter head body, a mounting mechanism is arranged on the bottom of the shield cutter head body, and a support column is arranged inside the mounting mechanism.

[0008] The crushing mechanism includes a gauge knife, which is fixedly connected to the top of the shield cutter head body. The number of gauge knives is several, and the several gauge knives are distributed in a ring shape on the top of the shield cutter head body. A mounting part is fixedly connected inside the shield cutter head body, and a main knife is fixedly connected to the top of the mounting part.

[0009] Preferably, a groove is provided in the mounting member, and a tearing knife is rotatably connected in the groove. The tearing knives are provided in a plurality of numbers, and the tearing knives can be supported by the mounting member.

[0010] Preferably, a fixing piece is fixedly connected inside the shield cutter head body, and a center cutter is fixedly connected to the middle of the top of the fixing piece, so that the center cutter is supported and fixed by the setting of the fixing piece.

[0011] Preferably, a groove is provided in the fixing member, and a tearing knife is rotatably connected in the groove. The tearing knife is arranged in layers at multiple points on the top of the fixing member. By arranging the tearing knives in layers at multiple points, when the shield cutter head body encounters relatively hard rock, the hard rock can be quickly crushed.

[0012] Preferably, the mounting mechanism includes a groove, the groove is opened on the right side of the shield cutter head body, a limiting groove is opened on the right side of the shield cutter head body, the groove and the limiting groove are connected, the support column is inserted into the groove, and the shield cutter head body can be initially limited by the set limiting groove.

[0013] Preferably, a limiting plate is inserted in the limiting groove, and the limiting plate is fixedly connected to the surface of the support column. The surface of the support column is fixedly connected to a second connecting plate, and a hole groove is opened in the second connecting plate. A limiting rod is inserted in the hole groove, and the limiting rod is fixedly connected to the right side of the shield cutter head body. The surface of the limiting rod is provided with a thread, and the surface of the limiting rod is threadedly connected with a locking nut, and the shield cutter head body can be further positioned by the provided locking nut.

[0014] Preferably, a first connecting plate is fixedly connected to the surface of the support column, and bolts are threadedly connected inside the first connecting plate and the shield cutter head body. By threading the bolts into the first connecting plate and the inside of the shield cutter head body, the support column can be positioned, thereby achieving the installation of the shield cutter head body.

[0015] Compared with the prior art, the utility model provides a shield cutter head with cutters arranged in layers and multiple points, which has the following beneficial effects:

[0016] 1. The shield cutter disc with tools arranged in layers and multiple points has a crushing mechanism and tearing knives arranged in layers and multiple points. When the shield cutter disc main body encounters relatively hard rock, the hard rock can be quickly crushed, thereby achieving the purpose of normal advancement of the shield cutter disc main body. Through the cooperation of the cutting knife, the center knife, the gauge knife and the main knife, the force on the shield cutter disc main body can be reduced, thereby reducing the degree of wear of the shield cutter disc main body and extending the service life of the shield cutter disc main body.

[0017] 2. The cutters of the shield cutterhead are arranged in layers and at multiple points. Through the installation mechanism, the support column can be positioned by threading the bolts into the first connecting plate and the inside of the shield cutterhead body, thereby realizing the installation of the shield cutterhead body. At the same time, the shield cutterhead body can be disassembled. By setting a shield cutterhead body that is easy to install and disassemble, when the shield cutterhead body is damaged, the shield cutterhead body can be disassembled and repaired in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the overall front view of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the back of the overall structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the crushing mechanism of the utility model;

[0022] Figure 4 It is a schematic diagram of the installation mechanism of the utility model.

[0023] In the figure: 1. Shield cutter body; 2. Crushing mechanism; 21. Cutter; 22. Fixing piece; 23. Center cutter; 24. Mounting piece; 25. Main cutter; 26. Gauge cutter; 27. Tearing cutter; 3. Mounting mechanism; 31. Limit rod; 32. Groove; 33. Limit slot; 35. First connecting plate; 36. Bolt; 37. Limit plate; 38. Second connecting plate; 39. Locking nut; 4. Support column. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides a technical solution:

[0026] Embodiment 1:

[0027] Combination Figure 1-2 to Figure 3 A shield cutterhead with cutters arranged in layers and multiple points, comprising a shield cutterhead body 1, a crushing mechanism 2 is arranged on the top surface of the shield cutterhead body 1, a mounting mechanism 3 is arranged at the bottom of the shield cutterhead body 1, and a support column 4 is arranged inside the mounting mechanism 3.

[0028] The crushing mechanism 2 includes a gauge knife 26, which is fixedly connected to the top of the shield cutter head body 1. A plurality of gauge knives 26 are arranged, and the plurality of gauge knives 26 are distributed in a ring shape on the top of the shield cutter head body 1. A mounting part 24 is fixedly connected inside the shield cutter head body 1, and a main knife 25 is fixedly connected to the top of the mounting part 24.

[0029] Furthermore, a groove 32 is provided in the mounting member 24 , and a tearing knife 27 is rotatably connected in the groove 32 . A plurality of tearing knives 27 are provided, and the tearing knives 27 can be supported by the provided mounting member 24 .

[0030] Furthermore, a fixing part 22 is fixedly connected inside the shield cutter head body 1, and a center cutter 23 is fixedly connected to the middle of the top of the fixing part 22. The setting of the fixing part 22 supports and fixes the center cutter 23.

[0031] Furthermore, a groove 32 is opened in the fixing part 22, and a tearing knife 27 is rotatably connected in the groove 32. The tearing knife 27 is arranged in layers at multiple points on the top of the fixing part 22. By setting the tearing knife 27 arranged in layers at multiple points, when the shield cutter head body 1 encounters relatively hard rock, the hard rock can be quickly crushed.

[0032] Embodiment 2:

[0033] See also Figure 4 On the basis of the first embodiment, the mounting mechanism 3 further comprises a groove 32, the groove 32 is arranged on the right side of the shield cutter head body 1, a limiting groove 33 is arranged on the right side of the shield cutter head body 1, the groove 32 and the limiting groove 33 are connected, the support column 4 is inserted into the groove 32, and the shield cutter head body 1 can be initially limited by the setting of the limiting groove 33.

[0034] Furthermore, a limiting plate 37 is inserted in the limiting groove 33, and the limiting plate 37 is fixedly connected to the surface of the support column 4. A second connecting plate 38 is fixedly connected to the surface of the support column 4. A hole groove is opened in the second connecting plate 38, and a limiting rod 31 is inserted in the hole groove. The limiting rod 31 is fixedly connected to the right side of the shield cutter head body 1. A thread is provided on the surface of the limiting rod 31, and a locking nut 39 is threadedly connected to the surface of the limiting rod 31. The shield cutter head body 1 can be further positioned by the provided locking nut 39.

[0035] Furthermore, a first connecting plate 35 is fixedly connected to the surface of the support column 4, and bolts 36 are threadedly connected inside the first connecting plate 35 and the shield cutter head body 1. By threading the bolts 36 into the first connecting plate 35 and the shield cutter head body 1, the support column 4 can be positioned, thereby realizing the installation of the shield cutter head body 1.

[0036] In actual operation, when this device is used, first, the support column 4 is placed on the right side of the shield cutter head body 1. When the support column 4 is inserted into the inside of the groove 32, the limit plate 37 can be inserted into the inside of the limit groove 33, and the limit rod 31 can be inserted into the hole groove inside the second connecting plate 38. At the same time, the locking nut 39 is threaded into the surface of the limit rod 31, and then the bolt 36 is threaded into the inside of the first connecting plate 35 and the inside of the shield cutter head body 1. The support column 4 can be positioned, thereby realizing the installation of the shield cutter head body 1. According to the above principle, the shield cutter head body 1 can be disassembled by repeating the reverse steps. By setting a shield cutter head body 1 that is easy to install and disassemble, when the shield cutter head body 1 is damaged, the shield cutter head body 1 can be disassembled and repaired in time;

[0037] By setting up the tearing knives 27 arranged in layers and multiple points, when the shield cutter head body 1 encounters relatively hard rock, the hard rock can be quickly crushed, thereby achieving the purpose of normal advancement of the shield cutter head body 1. Through the cooperation of the cutting knife 21, the center knife 23, the gauge knife 26 and the main knife 25, the force on the shield cutter head body 1 can be reduced, thereby reducing the degree of wear of the shield cutter head body 1 and extending the service life of the shield cutter head body 1.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A shield cutterhead with cutters arranged in layers and multiple points, comprising a shield cutterhead body (1), characterized in that: A crushing mechanism (2) is provided on the top surface of the shield cutter head body (1), a mounting mechanism (3) is provided on the bottom of the shield cutter head body (1), and a support column (4) is provided inside the mounting mechanism (3); The crushing mechanism (2) comprises a gauge knife (26), the gauge knife (26) is fixedly connected to the top of the shield cutter head body (1), the gauge knife (26) is arranged in a plurality of pieces, and the plurality of gauge knives (26) are distributed in a ring shape on the top of the shield cutter head body (1), a mounting part (24) is fixedly connected inside the shield cutter head body (1), and a main knife (25) is fixedly connected to the top of the mounting part (24).

2. The shield cutter head with cutters arranged in layers and multiple points according to claim 1 is characterized in that: A groove (32) is provided in the mounting member (24), and a tearing knife (27) is rotatably connected in the groove (32), and a plurality of tearing knives (27) are provided.

3. The shield cutter head with cutters arranged in layers and multiple points according to claim 1 is characterized in that: A fixing part (22) is fixedly connected inside the shield cutter head body (1), and a center cutter (23) is fixedly connected to the middle of the top of the fixing part (22).

4. The shield cutter head with cutters arranged in layers and multiple points according to claim 3 is characterized in that: A groove (32) is provided in the fixing member (22), and a tearing knife (27) is rotatably connected in the groove (32). The tearing knife (27) is arranged in layers at multiple points on the top of the fixing member (22).

5. The shield cutter head with cutters arranged in layers and multiple points according to claim 1 is characterized in that: The mounting mechanism (3) comprises a groove (32), the groove (32) being arranged on the right side of the shield cutter head body (1), a limiting groove (33) being arranged on the right side of the shield cutter head body (1), the groove (32) and the limiting groove (33) being connected, and the support column (4) being inserted into the groove (32).

6. The shield cutter head with cutters arranged in layers and multiple points according to claim 5, characterized in that: A limiting plate (37) is inserted into the limiting groove (33), and the limiting plate (37) is fixedly connected to the surface of the support column (4). A second connecting plate (38) is fixedly connected to the surface of the support column (4). A hole groove is provided in the second connecting plate (38), and a limiting rod (31) is inserted into the hole groove. The limiting rod (31) is fixedly connected to the right side of the shield cutter head body (1). The surface of the limiting rod (31) is provided with a thread, and a locking nut (39) is threadedly connected to the surface of the limiting rod (31).

7. The shield cutter head with cutters arranged in layers and multiple points according to claim 6, characterized in that: A first connecting plate (35) is fixedly connected to the surface of the support column (4), and a bolt (36) is threadedly connected inside the first connecting plate (35) and the shield cutter head body (1).

Images