Tunnel brush help disc structure
Patent Information
- Application Number
- CN202522208829.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-20
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-10-20
AI Technical Summary
为了解决上述问题，目前常用的方法是先通过掘进机开挖出圆形断面，然后再利用人工或者其他设备进行二次修型开挖；这种施工方式不仅效率低、成型效果差，而且还会延长施工工期，施工成本增加
（1）本实用新型通过在位移组件沿其位移方向的左右两侧均设置一组刷帮刀盘，且两组刷帮刀盘采用一件支撑臂相连，使其在旋转时旋转方向相反，从而有利于平衡破岩时，左右刷帮刀盘所受的反力。
Smart Images
Figure CN224755740U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of full-face rock tunnel boring machine (TBM) excavation devices, and relates to a tunnel side brush cutterhead structure. Background Technology
[0002] With societal development and increasing demands for tunnel functionality, the need for excavating irregularly shaped tunnels (such as archways, horseshoe-shaped tunnels, and straight-walled semi-circular arches) is growing. In the tunnel construction field, tunnel boring machines (TBMs) are widely used both domestically and internationally due to their high efficiency, safety, environmental friendliness, high degree of mechanization, and low manual labor intensity. However, currently, the cross-sections excavated by TBMs are all circular. To address this issue, the common method is to first excavate a circular cross-section using a TBM, and then use manual labor or other equipment for secondary reshaping excavation. This construction method is not only inefficient and produces poor results, but it also prolongs the construction period and increases construction costs.
[0003] Therefore, developing a device that can excavate and form a horseshoe-shaped tunnel in one go has become an urgent problem to be solved. Utility Model Content
[0004] The purpose of this utility model is to provide a tunnel cutterhead structure that enables the one-time excavation and forming of a horseshoe-shaped tunnel using a full-face rock tunneling machine.
[0005] This utility model provides a tunnel brush cutter head structure, including a displacement component, a brush cutter head, a support arm, and an adjustment component; The middle part of the support arm is rotatably connected to the displacement component; A set of brush cutter discs is installed at both ends of the support arm, and the two sets of brush cutter discs are arranged symmetrically to each other. One end of the adjustment component is connected to the displacement component, and the other end of the adjustment component is connected to the support arm. It is used to drive the support arm to rotate relative to the displacement component, so as to adjust the excavation diameter of the brush cutter head 5.
[0006] Furthermore, the brush cutterhead has a hollow wheel-type disc structure, and the main drive of the tunneling machine is installed in the hollow position of the brush cutterhead.
[0007] Furthermore, the single-unit brush blade disc includes a first section, a second section, a third section, and a fourth section that are connected to each other. The first section, the second section, the third section, and the fourth section are connected to each other by bolts to form a hollow wheel-type disc structure.
[0008] Furthermore, the first segment includes an inner ring plate, a tool box web plate, a connecting plate, and a tool holder plate; The inner ring plate is provided with multiple pieces that are spliced together, and a blade box panel is provided between two adjacent inner ring plates; At least one connecting plate is provided between two adjacent blade box plates, which is arranged along the central axis of the brush cutter disc. Two tool holder plates are provided between two adjacent tool box plates, arranged along the central axis of the brush cutter disc, and a hob is installed on each tool holder plate.
[0009] Furthermore, the first block, the second block, the third block, and the fourth block have the same structure.
[0010] Furthermore, the displacement assembly includes a traveling trolley and a sliding saddle, a sliding guide rail, and a propulsion cylinder mounted on the traveling trolley; The traveling trolley can be connected to the supporting trolley system at the rear of the tunneling machine; The sliding guide rail includes a guide rail part and a slider part that match each other. The guide rail part is fixedly installed on the upper end surface of the traveling trolley, and the slider part is fixedly connected to the sliding saddle frame so that the sliding saddle frame and the traveling trolley can slide relative to each other. One end of the propulsion cylinder is connected to the traveling trolley, and the other end of the propulsion cylinder is connected to the sliding saddle, providing power for the relative sliding between the sliding saddle and the traveling trolley.
[0011] Furthermore, the traveling trolley includes traveling wheels, a platform, and a support frame; The traveling wheels are provided in multiple sets, all of which are set on the lower end face of the support frame, for driving the horseshoe-shaped tunnel side brushing device to make overall displacement on the tunnel surface; The platform is located on the upper surface of the support frame and is used to provide an installation position for the sliding guide rail.
[0012] Furthermore, the support frame is a hollow welded structure.
[0013] Furthermore, the propulsion cylinder has two parts respectively disposed on two parallel side end faces of the sliding saddle.
[0014] Furthermore, the adjustment assembly includes a rotary table and a swing arm cylinder; The fixed end of the rotary table is installed on the lower end face of the sliding saddle, and the driving end of the rotary table is fixedly connected to the middle part of the support arm, which is used to drive the support arm to rotate relative to the sliding saddle. The fixed end of the swing arm cylinder is connected to the traveling trolley, and the driving end of the swing arm cylinder is connected to the support arm. It is used to provide power for the support arm to rotate relative to the sliding saddle, thereby achieving the purpose of adjusting the excavation diameter of the brush cutter head.
[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) This utility model provides a set of brush cutter discs on both the left and right sides of the displacement component along its displacement direction, and the two sets of brush cutter discs are connected by a support arm so that they rotate in opposite directions when rotating, which helps to balance the reaction force on the left and right brush cutter discs when breaking rocks.
[0016] (2) This utility model arranges the brush cutter head on the sliding saddle of the traveling trolley, with an independent drive system and swing arm cylinder, so that it does not interfere with the rock breaking of the full-section rock tunneling machine in front.
[0017] (3) The brush cutter head in this utility model can adjust the excavation position through the swing arm cylinder on the traveling trolley, and can adapt to the horseshoe-shaped cross-section forming of tunnels with different diameters.
[0018] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description
[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a tunnel brush cutterhead structure according to an embodiment of this utility model; Figure 2 yes Figure 1 A side view sectional diagram; Figure 3 yes Figure 1 A diagram showing the view from below; Figure 4 yes Figure 1 A schematic diagram of the structure of the brush head.
[0020] in: 1. Traveling trolley; 101. Traveling wheels; 102. Platform; 103. Support frame; 2. Sliding saddle frame; 3. Sliding guide rail; 4. Propulsion cylinder; 5. Brush cutter head; 501. Inner ring plate; 502. Cutter box web plate; 503. Connecting plate; 504. Cutter holder plate; 6. Support arm; 7. Rotary table; 8. Swing arm cylinder. Detailed Implementation
[0021] To make the above-mentioned objectives, features, and advantages of this utility model clearer and easier to understand, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that the accompanying drawings of this utility model are all in a simplified form and use non-precise proportions, and are only used to facilitate and clearly assist in illustrating the implementation of this utility model; the "several" mentioned in this utility model are not limited to the specific number shown in the examples in the drawings; the directions or positional relationships indicated by "front," "middle," "rear," "left," "right," "up," "down," "top," "bottom," and "middle" mentioned in this utility model are all based on the directions or positional relationships shown in the accompanying drawings of this utility model, and do not indicate or imply that the device or component referred to must have a specific orientation, nor should they be construed as limitations on this utility model.
[0022] Example: See Figures 1 to 3 As shown, the tunnel brush cutter head structure provided by this utility model includes a traveling trolley 1 and a sliding saddle frame 2, a sliding guide rail 3, a propulsion cylinder 4, a brush cutter head 5, a support arm 6, a rotary table 7, and a swing arm cylinder 8, all mounted on the traveling trolley 1. The traveling trolley 1 can be connected to the supporting trolley system at the rear of the tunneling machine; The sliding guide rail 3 includes a guide rail part and a slider part that match each other. The guide rail part is fixedly installed on the upper end surface of the traveling trolley 1, and the slider part is fixedly connected to the sliding saddle 2 so that the sliding saddle 2 and the traveling trolley 1 can slide relative to each other. One end of the propulsion cylinder 4 is connected to the traveling trolley 1, and the other end of the propulsion cylinder 4 is connected to the sliding saddle 2, providing power for the relative sliding between the sliding saddle 2 and the traveling trolley 1. The fixed end of the rotary table 7 is installed on the lower end surface of the sliding saddle 2, and the driving end of the rotary table 7 is fixedly connected to the middle part of the support arm 6, which is used to drive the support arm 6 to rotate relative to the sliding saddle 2. A set of brush cutter discs 5 are installed at both ends of the support arm 6, and the two sets of brush cutter discs 5 are arranged symmetrically to each other. The fixed end of the swing arm cylinder 8 is connected to the traveling trolley 1, and the driving end of the swing arm cylinder 8 is connected to the support arm 6. It is used to provide power for the support arm 6 to rotate relative to the sliding saddle 2, thereby achieving the purpose of adjusting the excavation diameter of the brush cutter head 5.
[0023] Preferably, in order to enable the sliding saddle 2 to slide smoothly on the guide rail, the propulsion cylinder 4 is provided with two parts respectively disposed on two parallel side end faces of the sliding saddle 2.
[0024] As a further embodiment of this utility model, see [link to relevant documentation]. Figure 4 As shown, the brush cutterhead 5 has a hollow wheel-type disc structure, and the main drive of the tunneling machine is installed in the hollow position of the brush cutterhead 5.
[0025] More preferably, the brush blade disc 5 is configured as a segmented structure. Specifically, in this embodiment, the brush blade disc 5 is configured to include a first segment, a second segment, a third segment, and a fourth segment that are connected to each other. The first segment, the second segment, the third segment, and the fourth segment are connected to each other by bolts to form a hollow wheel-type disc structure.
[0026] More preferably, the first block, the second block, the third block and the fourth block have the same structure. Taking the first block as an example, it includes an inner ring plate 501, a tool box web plate 502, a connecting plate 503 and a tool holder plate 504. The inner ring plate 501 is provided with multiple pieces spliced together, and a knife box web plate 502 is provided between two adjacent inner ring plates 501. At least one connecting plate 503 is provided between two adjacent blade box plates 502, which is arranged along the central axis of the brush blade disc 5. Two tool holder plates 504 are provided between two adjacent tool box plates 502, which are arranged along the central axis of the brush cutter disc 5, and a hob is installed on each tool holder plate 504.
[0027] As a further embodiment of the present invention, the traveling trolley 1 includes traveling wheels 101, a platform 102 and a support frame 103; the traveling wheels 101 are disposed on the lower end surface of the support frame 103 and are used to drive the horseshoe-shaped tunnel brushing device to make overall displacement on the tunnel surface; the platform 102 is disposed on the upper end surface of the support frame 103 and is used to provide an installation position for the sliding guide rail 3.
[0028] Preferably, the support frame 103 is a hollow welded structure, and the hollow area can serve as a material transport channel.
[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A tunnel brush cutterhead structure, characterized in that, It includes a displacement assembly, a brush cutter head (5), a support arm (6), and an adjustment assembly; The middle part of the support arm (6) is rotatably connected to the displacement component; A set of brush cutter discs (5) is installed at both ends of the support arm (6), and the two sets of brush cutter discs (5) are arranged symmetrically to each other; One end of the adjustment component is connected to the displacement component, and the other end of the adjustment component is connected to the support arm (6), which is used to drive the support arm (6) to rotate relative to the displacement component, so as to adjust the excavation diameter of the brush cutter head (5).
2. The tunnel brush cutterhead structure according to claim 1, characterized in that, The brush cutterhead (5) has a hollow wheel-type disc structure, and the main drive of the tunneling machine is installed in the hollow position of the brush cutterhead (5).
3. The tunnel brush cutterhead structure according to claim 2, characterized in that, The single-group brush blade disc (5) includes a first section, a second section, a third section and a fourth section that are connected to each other. The first section, the second section, the third section and the fourth section are connected to each other by bolts to form a hollow wheel-type disc structure.
4. The tunnel brush cutterhead structure according to claim 3, characterized in that, The first section includes an inner ring plate (501), a tool box web plate (502), a connecting plate (503), and a tool holder plate (504). The inner ring plate (501) is provided with multiple pieces spliced together, and a knife box panel (502) is provided between two adjacent inner ring plates (501). At least one connecting plate (503) is provided between two adjacent blade box plates (502) along the central axis of the brush blade disc (5); Two tool holder plates (504) are provided between two adjacent tool box plates (502) and are arranged along the central axis of the brush cutter disc (5). A hob is installed on each tool holder plate (504).
5. The tunnel brush cutterhead structure according to claim 4, characterized in that, The first block, the second block, the third block, and the fourth block have the same structure.
6. The tunnel brush cutterhead structure according to any one of claims 1-5, characterized in that, The displacement assembly includes a traveling trolley (1) and a sliding saddle (2), a sliding guide rail (3) and a propulsion cylinder (4) mounted on the traveling trolley (1). The traveling trolley (1) can be connected to the supporting trolley system behind the tunneling machine; The sliding guide rail (3) includes a guide rail part and a slider part that match each other. The guide rail part is fixedly installed on the upper end surface of the traveling trolley (1). The slider part is fixedly connected to the sliding saddle (2) so that the sliding saddle (2) and the traveling trolley (1) can slide relative to each other. One end of the propulsion cylinder (4) is connected to the traveling trolley (1), and the other end of the propulsion cylinder (4) is connected to the sliding saddle (2), providing power for the relative sliding between the sliding saddle (2) and the traveling trolley (1).
7. The tunnel brush cutterhead structure according to claim 6, characterized in that, The traveling trolley (1) includes traveling wheels (101), a platform (102) and a support frame (103). The traveling wheels (101) are provided in multiple sets, all of which are set on the lower end face of the support frame (103), for driving the tunnel brush cutter head structure to make overall displacement on the tunnel surface; The platform (102) is located on the upper surface of the support frame (103) and is used to provide an installation position for the sliding guide rail (3).
8. The tunnel brush cutterhead structure according to claim 7, characterized in that, The support frame (103) is a hollow welded structure.
9. The tunnel brush cutterhead structure according to claim 7, characterized in that, The propulsion cylinder (4) has two parts respectively set on two parallel side end faces of the sliding saddle (2).
10. The tunnel brush cutterhead structure according to any one of claims 7-9, characterized in that, The adjustment assembly includes a rotary table (7) and a swing arm cylinder (8); The fixed end of the rotary table (7) is installed on the lower end surface of the sliding saddle (2), and the driving end of the rotary table (7) is fixedly connected to the middle part of the support arm (6) to drive the support arm (6) to rotate relative to the sliding saddle (2). The fixed end of the swing arm cylinder (8) is connected to the traveling trolley (1), and the driving end of the swing arm cylinder (8) is connected to the support arm (6). It is used to provide power for the support arm (6) to rotate relative to the sliding saddle (2), thereby achieving the purpose of adjusting the excavation diameter of the brush cutter head (5).