A TBM cutterhead

Abstract

The utility model discloses a kind of TBM cutterheads, belong to tunneling equipment technical field, including cutterhead body, the cutterhead body includes panel and butt joint in the panel backplate, the backplate is fixedly connected with the panel, the panel central position is provided with center cutter, the center cutter is provided with multiple groups of positive cutter assembly around, adjacent the positive cutter assembly between is provided with side cutter assembly, every group the side cutter assembly is provided with multiple cutting knives, the backplate includes fixed ring and the deslagging component connected with the fixed ring.The utility model uses above-mentioned a kind of TBM cutterhead, is broken to large block slag soil by setting cutting knife, and effectively prevents slag soil accumulation by setting deslagging component, improves deslagging efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tunneling equipment technology, and in particular to a TBM cutterhead. Background Technology

[0002] In the field of tunnel engineering, full-face tunnel boring machines (TBMs) have become the core equipment for tunnel construction under complex geological conditions due to their advantages such as high efficiency, safety and environmental protection. As the key component of the TBM that comes into direct contact with the rock and soil, the structural design of the cutterhead directly affects the tunneling efficiency, tool life and construction safety.

[0003] In actual construction, the existing TBM cutterhead has insufficient matching between the slag removal system and the cutter layout, the slag conveying path is tortuous, and the slag removal channel is prone to blockage. Especially in water-rich strata or clay layers, the phenomenon of slag agglomeration is aggravated. Large pieces of slag may cause blockage after entering the slag removal system, reducing slag removal efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a TBM cutter head to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a TBM cutter head, including a cutter head body. The cutter head body includes a front panel and a back plate connected to the front panel. The back plate is fixedly connected to the front panel. A central roller cutter is provided at the center of the front panel. Multiple sets of positive roller cutter assemblies are arranged around the central roller cutter. Side roller cutter assemblies are arranged between adjacent positive roller cutter assemblies. Multiple cutting blades are provided on each set of side roller cutter assemblies. The back plate includes a fixing ring and a slag discharge assembly connected to the fixing ring.

[0006] Preferably, a slag discharge port is provided between adjacent side cutter assemblies and the front cutter assembly, and multiple slag discharge ports form a slag discharge port group.

[0007] Preferably, each group of the forward hobbing cutter assembly is provided with multiple forward hobbing cutters, and the forward hobbing cutters are arranged along the central axis.

[0008] Preferably, each set of the edge roller assembly includes a fan-shaped plate and multiple edge rollers, the fan-shaped plate being fixedly connected to the panel, and the multiple edge rollers being disposed on the curved side of the fan-shaped plate.

[0009] Preferably, a plurality of the cutting blades are disposed on the remaining two sides of the sector plate.

[0010] Preferably, the slag discharge assembly includes a connector, multiple partitions and a connecting plate. The multiple partitions are arranged around the connector, and the inner side of the partition is fixedly connected to the connector. One side of the partition is fixedly connected to the fixing ring, and the other side is fixedly connected to the connecting plate. A gap is provided between the connector and the connecting plate, and a through hole is provided on the connecting plate.

[0011] Preferably, a slag discharge trough is formed between adjacent partitions, and the slag discharge trough corresponds to the slag discharge port, the positive roller cutter assembly, and the side roller cutter, respectively.

[0012] Therefore, the present invention employs the above-mentioned TBM cutter head, which has the following beneficial effects:

[0013] (1) Equipped with a cutting blade, it can crush large pieces of slag and soil, effectively reducing the situation of slag discharge system blockage;

[0014] (2) The slag discharge troughs correspond to the slag discharge port, the positive roller cutter assembly, and the side roller cutter, respectively, which optimizes the slag discharge path and improves the slag discharge efficiency.

[0015] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a front view of an embodiment of a TBM cutter head according to the present invention;

[0017] Figure 2 This is a schematic diagram of the back plate of an embodiment of a TBM cutter head according to the present invention;

[0018] Figure 3 This is a schematic diagram of the connection between the connector and the partition plate in an embodiment of the TBM cutter head according to this utility model;

[0019] Figure Labels

[0020] 1. Panel; 2. Center roller cutter; 3. Cutting blade; 4. Fixing ring; 5. Slag discharge port; 6. Front roller cutter; 7. Side roller cutter; 8. Fan-shaped plate; 9. Connecting ring; 10. Connecting piece; 11. Partition plate; 12. Connecting plate; 13. Through hole; 14. Slag discharge trough. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0022] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Example

[0024] like Figure 1-3 As shown, this utility model provides a TBM cutterhead, including a cutterhead body. The cutterhead body includes a front panel 1 and a back plate connected to the front panel 1. The back plate is fixedly connected to the front panel 1. A central roller cutter 2 is arranged at the center of the front panel 1. Four sets of forward roller cutter assemblies are arranged around the central roller cutter 2. Side roller cutter assemblies are arranged between adjacent forward roller cutter assemblies. Each set of side roller cutter assemblies is equipped with multiple cutting blades 3, which are used to crush large pieces of slag. The back plate includes a fixing ring 4 and a slag discharge assembly connected to the fixing ring 4.

[0025] A slag discharge port 5 is provided between the adjacent side cutter assembly and the front cutter assembly. Multiple slag discharge ports 5 form a slag discharge port group for slag discharge.

[0026] Each set of forward hobbing cutter assemblies is provided with multiple forward hobbing cutters 6, and the forward hobbing cutters 6 are arranged along the central axis.

[0027] Each set of edge hobbing cutter assemblies includes a fan-shaped plate 8 and multiple edge hobbing cutters 7. The fan-shaped plate 8 is fixedly connected to the panel 1 via a connecting ring 9, which is fixedly mounted on the panel 1. The multiple edge hobbing cutters 7 are mounted on the curved side of the fan-shaped plate 8.

[0028] Multiple cutting blades 3 are set on the other two sides of the fan-shaped plate 8 to crush large pieces of slag. The crushed slag is then sent to the slag discharge assembly.

[0029] The slag discharge assembly includes a connector 10, multiple partitions 11, and a connecting plate 12. The partitions 11 are arranged around the connector 10, and the inner side of each partition 11 is fixedly connected to the connector 10. One side of each partition 11 is fixedly connected to a fixing ring 4, and the other side is fixedly connected to the connecting plate 12. A gap is provided between the connector 10 and the connecting plate 12, allowing slag to fall onto the conveyor belt through the gap. The connecting plate 12 has through holes 13. In actual use, the conveyor belt passes through the through holes 13 to facilitate the conveying of slag. Figure 2 As shown.

[0030] A slag discharge trough 14 is formed between adjacent partitions 11, and the slag discharge trough 14 corresponds to the slag discharge port 5, the positive roller cutter assembly, and the side roller cutter 7, respectively. Since the positive roller cutter assembly is arranged axially, multiple positive roller cutters 6 are located on a straight line, and the slag discharge trough 14 corresponds to multiple positive roller cutters 6.

[0031] In this embodiment, the specific connection methods of each component all adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0032] Working principle: When the tunneling starts, the cutterhead body rotates around the central axis. The central cutter 2, the forward cutter 6, and the side cutter 7 work together to break the tunnel face. At the same time, the cutting blade 3 performs secondary cutting on the broken muck, refining the large pieces of muck and pushing the fine muck towards the muck discharge port 5. The broken muck enters the back plate area, and the muck discharge chute 14 is precisely aligned with the muck discharge port 5, the forward cutter assembly, and the side cutter assembly, so that the muck in different areas can flow along the directional channel.

[0033] Therefore, this utility model adopts the above-mentioned TBM cutter head, which is equipped with cutting blades to crush large pieces of slag. The slag discharge troughs correspond to the slag discharge port, the forward rolling cutter assembly, and the side rolling cutter, which effectively prevents slag accumulation and improves slag discharge efficiency.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A TBM cutter head, characterized in that: The device includes a cutter head body, which includes a front panel and a back plate connected to the front panel. The back plate is fixedly connected to the front panel. A central roller cutter is provided at the center of the front panel. Multiple sets of positive roller cutter assemblies are arranged around the central roller cutter. Side roller cutter assemblies are arranged between adjacent positive roller cutter assemblies. Multiple cutting blades are provided on each set of side roller cutter assemblies. The back plate includes a fixing ring and a slag discharge assembly connected to the fixing ring.

2. The TBM cutter head according to claim 1, characterized in that: A slag discharge port is provided between adjacent side cutter assemblies and front cutter assemblies, and multiple slag discharge ports form a slag discharge port group.

3. A TBM cutter head according to claim 1, characterized in that: Each group of the forward hobbing cutter assembly is provided with multiple forward hobbing cutters, and the forward hobbing cutters are arranged along the central axis.

4. A TBM cutter head according to claim 2, characterized in that: Each set of the edge rolling cutter assembly includes a fan-shaped plate and multiple edge rolling cutters. The fan-shaped plate is fixedly connected to the panel, and the multiple edge rolling cutters are disposed on the curved side of the fan-shaped plate.

5. A TBM cutter head according to claim 4, characterized in that: Multiple cutting blades are disposed on the remaining two sides of the sector plate.

6. A TBM cutter head according to claim 5, characterized in that: The slag discharge assembly includes a connector, multiple partitions, and a connecting plate. The multiple partitions are arranged around the connector, and the inner side of the partition is fixedly connected to the connector. One side of the partition is fixedly connected to the fixing ring, and the other side is fixedly connected to the connecting plate. A gap is provided between the connector and the connecting plate, and a through hole is provided on the connecting plate.

7. A TBM cutter head according to claim 6, characterized in that: A slag discharge trough is formed between adjacent partitions, and the slag discharge trough corresponds to the slag discharge port, the positive roller cutter assembly, and the side roller cutter, respectively.

Images