Cutter head supporting structure for hob type rock tunneling machine

Abstract

The utility model relates to the technical field of operation machinery, in particular to a cutterhead supporting structure for a hob type rock tunneling machine, which comprises a cutterhead supporting seat, a connecting frame and a revolving platform, the rotary platform is rotatably connected to the front end of a machine body of the hob type rock tunneling machine in the horizontal direction; the connecting frame is rotatably connected to the front end of the rotary platform in the vertical direction; the cutterhead supporting seat is fixedly connected to the front end of the connecting frame and comprises a first connecting end, an annular structure is arranged at the bottom of the front end of the first connecting end and arranged in the horizontal direction, and the rotary cutterhead is arranged at the bottom of the annular structure. Through the combined arrangement of the driving device, the rotating platform and the connecting frame, various state changes of the rotating cutter head are achieved, the cutting range of the rotating cutter head is expanded, the flexibility of cutter head cutting operation is improved, and the application scenarios of the cutter head type cutting structure are increased. And by arranging the cutter head supporting frame structure, the rotary cutter head can be horizontally placed, so that the horizontal excavation operation of the operation machine is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of operating machinery, in particular to a cutter head supporting structure for a roller cutter type rock boring machine. Background Art

[0002] Hard rock is often encountered during coal mining or tunnel construction. The traditional excavation method is mainly drilling and blasting. During the construction process, drilling, charging, dust removal, and slag removal are all very time-consuming, and the construction efficiency is low. In addition, due to the use of drilling and blasting excavation, safety accidents are very likely to occur when the rock layer is unstable. Compared with drilling and blasting, mechanical excavation is safer and more efficient. In the construction of tunnels, there are mainly two types of cantilever tunneling machines and shield tunneling machines (TMBs) according to the geology and engineering volume. The cantilever tunneling machine has a light structure and limited rock breaking ability. Under complex geological conditions, the construction is difficult and the efficiency is low. It is mainly suitable for the construction of small and medium-sized tunnels such as coal mines, metal mines, and traffic tunnels. The shield machine has a complex structure and excavates through the cutter head as a whole. The construction efficiency is high, but it also has limitations such as inflexible turning and fixed circular cross-section. It is also costly and has poor economic efficiency. It is mainly used in infrastructure projects such as urban subways and tunnels.

[0003] For small-volume hard rock tunnels, cantilevered tunnel boring machines are generally used to dig tunnels. They are mainly composed of a traveling mechanism, a working mechanism, a loading mechanism, and a transfer mechanism. As the traveling mechanism moves forward, the cutting device in the working mechanism continuously breaks up the rock and transports the broken rock away. It has the advantages of safety, high efficiency, and good tunnel quality. However, due to the limitation of cutting hardness and cutting loss, the rock breaking capacity is limited, which greatly increases the cost of tunnel excavation.

[0004] Therefore, for the construction of short-distance, ultra-hard rock tunnel projects, it is urgent to develop a cutterhead support structure for a roller cutter rock tunnel boring machine, that is, combining the cutterhead cutting function of the TBM equipment and the lifting and swinging functions of the cantilever tunnel boring machine, and mounting the TBM cutterhead structure on the cantilever tunnel boring machine body, which can not only ensure the flexibility of equipment operation, but also greatly improve the rock breaking ability to meet market demand. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a cutterhead support structure for a roller cutter rock tunnel boring machine, which solves the technical problem that the existing cantilevered tunnel boring machines are inflexible in excavating small-volume tunnels in hard rock.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0009] A cutterhead support structure for a roller cutter type rock boring machine, used for supporting a rotating cutterhead, characterized in that it comprises: a cutterhead support seat, a connecting frame and a rotary platform;

[0010] The rotating platform is rotatably connected to the front end of the body of the roller cutter type rock boring machine along the horizontal direction; the connecting frame is rotatably connected to the front end of the rotating platform along the vertical direction;

[0011] The cutter disc support seat is fixedly connected to the front end of the connecting frame, and the cutter disc support seat includes a first connecting end, and a ring structure is provided at the bottom of the front end of the first connecting end. The ring structure is arranged in a horizontal direction, and the rotating cutter disc is arranged at the bottom of the ring structure.

[0012] A plug is provided on the side surface of the second connecting end, and the plug is inserted into the stopper at the front end of the connecting frame.

[0013] The slewing platform comprises a slewing center fixed on the fuselage, and an annular seat arranged concentrically with the slewing center;

[0014] Two first driving devices are symmetrically arranged at the rear end of the rotating platform. The first driving devices drive the annular seat to rotate relative to the rotation center, so that the rotating platform can rotate in the horizontal direction to drive the rotating cutter disc to rotate in the horizontal direction.

[0015] First hinged seats are symmetrically arranged on both sides of the annular seat, the extended end of the first driving device is rotatably connected to the first hinged seat, and the fixed end of the first driving device is rotatably connected to the fuselage.

[0016] A second hinge seat is symmetrically arranged at the front end of the annular seat, and a third hinge seat is extended downward from the second hinge seat.

[0017] A hinge hole is provided at the rear end of the connecting frame, and the hinge hole corresponds to the second hinge seat. A pin passes through the hinge hole and the second hinge seat, so that the connecting frame can rotate up and down relative to the rotating platform.

[0018] A second driving device is symmetrically arranged at the bottom of the connecting frame, and the fixed end of the second driving device is rotatably connected to the rotating platform through the third hinge seat; the extended end of the second driving device is rotatably connected to the cavity at the bottom of the connecting frame.

[0019] A flange plate is provided at the front end of the connecting frame, and the stopper is arranged on the side of the flange plate.

[0020] It also includes a protective member, which is arranged on the top of the rotating platform. The protective member includes a first cover plate, a second cover plate and a bracket. The first cover plate is arranged on the top of the rotating platform, the second cover plate is arranged on the top of the first driving device, and the bracket is used to support the first cover plate and the second cover plate.

[0021] (III) Beneficial effects

[0022] The beneficial effects of the utility model are:

[0023] The utility model provides a cutter head support structure for a roller cutter rock boring machine, which can realize the left-right swing state of a connecting frame by combining a driving device with a rotary platform; and can realize the up-and-down pitch state of the cutter head support frame by combining a driving device with the connecting frame.

[0024] Through the combined setting of the driving device, the rotating platform and the connecting frame, the various state changes of the rotating cutter disc can be realized, the cutting range of the rotating cutter disc is expanded, the flexibility of the cutter disc cutting operation is improved, and the application scenarios of the cutter disc cutting structure are increased. The rotating cutter disc can swing freely within a certain range and has a wider adaptability.

[0025] By setting up a cutter disc support frame structure, the rotating cutter disc can be placed horizontally to realize horizontal excavation operation of the operating machinery.

[0026] The utility model combines the vehicle-mounted TBM cutter disc support structure and multiple power devices to achieve stable connection of the rotating cutter disc in the horizontal direction, and at the same time realizes the up and down and left and right swings of the rotating cutter disc, changes the cutting position of the rotating cutter disc, realizes large-scale cutting, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a body of a roller cutter type rock boring machine provided with a cutter disc support structure;

[0028] Figure 2 This is a structural schematic diagram of the cutter head support structure of the utility model;

[0029] Figure 3 It is a top view of the cutter head support structure of the utility model;

[0030] Figure 4 A bottom view of the cutter head support structure of the utility model;

[0031] Figure 5 It is a structural schematic diagram (side view) of the annular seat of the utility model;

[0032] Figure 6 It is a structural schematic diagram (front view) of the annular seat of the utility model;

[0033] Figure 7 It is a structural schematic diagram (top view) of the annular seat of the utility model;

[0034] Figure 8 It is a structural schematic diagram (front view) of the connecting frame of the utility model;

[0035] Fig. 9 It is a structural schematic diagram (side view) of the connecting frame of the utility model;

[0036] Fig.10 It is a structural schematic diagram (top view) of the connecting frame of the utility model;

[0037] Fig.11 This is a structural schematic diagram (side view) of the cutter head support seat of the utility model;

[0038] Fig.12 It is a structural schematic diagram (top view) of the cutter disc support seat of the present utility model.

[0039] [Description of Reference Numerals]

[0040] 1: body; 11: first driving device; 12: second driving device;

[0041] 2: Rotating cutter disc;

[0042] 3: Cutter support seat; 31: Ring structure; 32: Bolt hole; 33: Plug;

[0043] 4: connecting frame; 41: flange plate; 42: stopper; 43: hinge hole;

[0044] 5: slewing platform; 51: slewing center; 52: annular seat; 53: first articulated seat; 54: second articulated seat; 55: third articulated seat;

[0045] 61: first cover plate; 62: second cover plate; 63: bracket. DETAILED DESCRIPTION

[0046] In order to better explain the utility model and facilitate understanding, the utility model is described in detail below with reference to the accompanying drawings and through specific embodiments. Figure 1 The orientation is used as a reference.

[0047] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail 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. On the contrary, 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.

[0048] See attached Figure 1-12 The utility model provides a cutterhead support structure for a roller cutter type rock boring machine, the cutterhead support structure comprises: a cutterhead support seat 3, a connecting frame 4 and a rotating platform 5, the cutterhead support seat 3 is fixedly connected to the front end of the connecting frame 4, and the cutterhead support seat 3 is used to install a rotating cutterhead 2. The connecting frame 4 is rotatably connected to the front end of the rotating platform 5 along the vertical direction, and the rotating platform 5 is rotatably connected to the front end of the body 1 of the roller cutter type rock boring machine along the horizontal direction. Through the combination of the connecting frame 4 and the rotating platform 5, the position of the rotating cutterhead 2 can be adjusted.

[0049] The rotating platform 5 is arranged in the horizontal direction, and includes a rotating center 51 fixed on the fuselage 1, and an annular seat 52 arranged concentrically with the rotating center 51, and the rotating center 51 is rotatably connected to the annular seat 52. Two first driving devices 11 are symmetrically arranged at the rear end of the rotating platform 5, and first articulated seats 53 are symmetrically arranged on both sides of the annular seat 52. The extended end of the first driving device 11 is rotatably connected to the first articulated seat 53, and the fixed end of the first driving device 11 is rotatably connected to the fuselage 1. The annular seat 52 is driven to rotate relative to the rotating center 51 by extending or retracting the extended end of the first driving device 11.

[0050] Preferably, the rotation center 51 is connected to the fuselage 1 by bolts.

[0051] A second hinge seat 54 is symmetrically disposed at the front end of the annular seat 52 , and a third hinge seat 55 is extended downward from the second hinge seat 54 .

[0052] The connecting frame 4 is rotatably connected to the front end of the rotary platform 5 . The connecting frame 4 is a box structure. A flange plate 41 is provided at the front end of the connecting frame 4 . A stopper 42 is provided on the side of the flange plate 41 . The stopper 42 is used to connect the cutter head support seat 3 .

[0053] A hinge hole 43 is provided at the rear end of the connecting frame 4 , and the hinge hole 43 corresponds to the second hinge seat 54 . The pin passes through the hinge hole 43 and the second hinge seat 54 , which is convenient for subsequent disassembly and maintenance. The connecting frame 4 can rotate up and down relative to the rotating platform 5 .

[0054] A cavity is provided at the bottom of the connecting frame 4, and two second driving devices 12 are symmetrically arranged in the cavity. The extended end of the second driving device 12 is rotatably connected to the connecting frame 4, and the fixed end of the second driving device 12 is rotatably connected to the rotating platform 5 through the third hinge seat 55. By extending or retracting the extended end of the second driving device 12, the connecting frame 4 can be pitched upward or downward, thereby adjusting the position of the rotating cutter head 2.

[0055] The cutter disc support seat 3 is fixed at the front end of the connecting frame 4. The cutter disc support seat 3 is an integral forging and is used to connect the rotating cutter disc 2. The cutter disc support seat 3 includes a first connecting end and a second connecting end. The front end bottom of the first connecting end is provided with an annular structure 31, which is arranged in the horizontal direction and corresponds to the circular rotating cutter disc 2. The annular structure 31 is provided with a plurality of bolt holes 32 for connecting the rotating cutter disc 2.

[0056] A plug 33 is provided on the side of the second connection end, and the plug 33 is inserted into the stopper 42 at the front end of the connecting frame 4. The plug 33 and the stopper 42 play a positioning role in the connection between the cutter disc support seat 3 and the connecting frame 4, and enhance the stability of the connection between the cutter disc support seat 3 and the connecting frame 4. The cutter disc support seat 3 and the connecting frame 4 are fixedly connected by bolts, which is convenient for subsequent disassembly.

[0057] The base of the rotary cutter head 2 is detachably fixed to the annular structure 31 by bolts, and the rotary cutter head 2 is arranged along the horizontal direction to realize horizontal excavation operation.

[0058] The cutter head support structure of the rotary cutter type rock boring machine of the utility model drives the rotary platform 5 and the connecting frame 4 to drive the cutter head support frame 3 through the driving device, and at the same time drives the rotating cutter head 2 on the cutter head support frame 3 to realize state change, thereby realizing the up and down and left and right swing cutting of the rotating cutter head 2.

[0059] Preferably, the rotatable connection between the first driving device 11 and the second driving device 12 is through a pin hinge, which can also be selected according to actual needs.

[0060] The cutter head support structure of the roller cutter rock boring machine also includes a protective member, which is arranged on the top of the rotary platform 5, and includes a first cover plate 61, a second cover plate 62 and a bracket 63. The first cover plate 61 is used to protect the rotary platform 5, the second cover plate 62 is used to protect the first driving device 11, and the bracket 63 is used to support the cover plate.

[0061] The cutterhead support structure works as follows:

[0062] Under the action of the first driving device 11, the slewing platform 5 performs slewing motion around the slewing center 51, and the slewing platform 5 drives the connecting frame 4 to perform slewing motion, and the connecting frame 4 then transmits the slewing motion to the cutter disc support seat 4, and the cutter disc support seat 4 drives the rotating cutter disc 2 to perform slewing motion together. Under the action of the second driving device 12, the connecting frame 4 and the slewing platform 5 perform up and down pitching motion at the hinge point, and similarly, the connecting frame 4 transmits the pitching motion to the cutter disc support seat 3, and the cutter disc support seat 3 drives the rotating cutter disc 2 to perform up and down pitching motion.

[0063] The utility model provides a cutter head support structure for a roller cutter rock boring machine, which can realize the left-right swing state of a connecting frame 4 by combining a driving device with a rotary platform 5; and can realize the up-and-down pitch state of a cutter head support frame 3 by combining a driving device with a connecting frame 4.

[0064] Through the combined arrangement of the driving device, the rotating platform 5 and the connecting frame 4, various state changes of the rotating cutter disc 2 can be realized, the cutting range of the rotating cutter disc 2 can be expanded, the flexibility of the cutter disc cutting operation can be improved, the application scenarios of the cutter disc cutting structure can be increased, and the rotating cutter disc 2 can swing freely within a certain range and has a wider adaptability.

[0065] By providing the cutterhead support frame 3 structure, the rotary cutterhead 2 can be placed horizontally to achieve horizontal excavation operation of the operating machine.

[0066] The utility model combines the vehicle-mounted TBM cutter disc support structure and multiple power devices to achieve a stable connection of the rotating cutter disc 2 in the horizontal direction, and at the same time realizes the up and down and left and right swings of the rotating cutter disc 2, changes the cutting position of the rotating cutter disc 2, realizes a large range of cutting, and improves work efficiency.

[0067] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0068] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0070] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations 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 the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0071] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A cutterhead support structure for a rotary cutter type rock boring machine, used to support a rotating cutterhead (2), characterized in that: include: A cutter head support seat (3), a connecting frame (4) and a rotary platform (5); The rotating platform (5) is rotatably connected to the front end of the body (1) of the roller cutter type rock boring machine in a horizontal direction; the connecting frame (4) is rotatably connected to the front end of the rotating platform (5) in a vertical direction; The cutter disc support seat (3) is fixedly connected to the front end of the connecting frame (4), and the cutter disc support seat (3) comprises a first connecting end, and a ring structure (31) is provided at the bottom of the front end of the first connecting end, and the ring structure (31) is arranged in a horizontal direction, and the rotating cutter disc (2) is arranged at the bottom of the ring structure (31).

2. The cutter head support structure for a roller cutter type rock boring machine according to claim 1, characterized in that: A plug (33) is provided on the side of the second connection end of the cutter disc support seat (3), and the plug (33) is inserted into the stopper (42) at the front end of the connecting frame (4).

3. The cutter head support structure for a roller cutter type rock boring machine according to claim 1, characterized in that: The slewing platform (5) comprises a slewing center (51) fixed on the fuselage (1), and an annular seat (52) arranged concentrically with the slewing center (51); Two first drive devices (11) are symmetrically arranged at the rear end of the rotating platform (5), and the first drive devices (11) drive the annular seat (52) to rotate relative to the rotation center (51), so that the rotating platform (5) can rotate in the horizontal direction, thereby driving the rotating cutter disc (2) to rotate in the horizontal direction.

4. The cutter head support structure for a roller cutter type rock boring machine according to claim 3, characterized in that: First hinged seats (53) are symmetrically arranged on both sides of the annular seat (52); the extended end of the first drive device (11) is rotatably connected to the first hinged seat (53); and the fixed end of the first drive device (11) is rotatably connected to the fuselage (1).

5. The cutter head support structure for a roller cutter type rock boring machine according to claim 3, characterized in that: A second hinge seat (54) is symmetrically arranged at the front end of the annular seat (52), and a third hinge seat (55) is arranged extending downward from the second hinge seat (54).

6. The cutter head support structure for a roller cutter type rock boring machine according to claim 5, characterized in that: A hinge hole (43) is provided at the rear end of the connecting frame (4), the hinge hole (43) corresponds to a second hinge seat (54), and a pin passes through the hinge hole (43) and the second hinge seat (54), so that the connecting frame (4) can rotate up and down relative to the rotating platform (5).

7. The cutter head support structure for a roller cutter type rock boring machine according to claim 5, characterized in that: A second driving device (12) is symmetrically arranged at the bottom of the connecting frame (4); a fixed end of the second driving device (12) is rotatably connected to the rotating platform (5) via the third hinge seat (55); and an extended end of the second driving device (12) is rotatably connected to the cavity at the bottom of the connecting frame (4).

8. The cutter head support structure for a roller cutter type rock boring machine according to claim 2, characterized in that: A flange plate (41) is provided at the front end of the connecting frame (4), and the stopper (42) is arranged on the side of the flange plate (41).

9. The cutter head support structure for a roller cutter type rock boring machine according to claim 4, characterized in that: The invention also comprises a protective member, which is arranged on the top of the rotating platform (5), and comprises a first cover plate (61), a second cover plate (62) and a bracket (63), wherein the first cover plate (61) is arranged on the top of the rotating platform (5), the second cover plate (62) is arranged on the top of the first driving device (11), and the bracket (63) is used to support the first cover plate (61) and the second cover plate (62).

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