Cutter head of vertical shaft heading machine and vertical shaft heading machine
By designing a detachable shaft boring machine cutter plate, the problems of waste of resources and high construction costs of multiple equipment are solved, and efficient excavation of wellbores of multiple diameters and convenient replacement of hobs is achieved.
Patent Information
- Application Number
- CN202422110569.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-29
AI Technical Summary
The existing shaft boring machine requires multiple equipment to meet the demand for shaft bores of different diameters, resulting in waste of resources and increased construction costs, and difficulty in replacing the hob.
A detachable shaft boring machine cutter plate is designed, including an intermediate cutter plate body and an annular cutter plate body. It can be detachably connected through the connecting parts, combined with the support system to achieve rapid replacement and support stability of cutter plates of different diameters.
A single shaft boring machine is realized to meet the excavation needs of wellbores of multiple diameters, reduce resource waste and construction costs, and facilitate the replacement of hobs and posture adjustment to prevent deviation.
Smart Images
Figure CN223075539U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shaft boring machines, in particular to a cutter head of a shaft boring machine and a shaft boring machine. Background Art
[0002] Shaft boring machines are widely used in shaft construction projects due to their safety and high efficiency. With the needs of social development, the shaft construction also shows diverse requirements. For example, the same shaft project requires shaft wells with multiple diameters, and the diameter of the same shaft well needs to be reduced in size as the depth increases. In order to meet the excavation requirements of shaft wells with multiple diameters and the need for large-size diameter reduction as the depth of the same shaft well increases, it is necessary to configure multiple shaft boring machines with different diameters for excavation, which will inevitably cause waste of resources and greatly increase the construction cost. In addition, when replacing the hob on the cutter head, the gravity of the cutter head and the upper mechanism acts on the hob, resulting in the hob being tightly attached to the working face and the position space between the working face and the cutter head being insufficient to replace a new hob, making it difficult to replace the hob.
[0003] In summary, there is an urgent need to provide a cutter head of a shaft boring machine and a shaft boring machine to solve the problems existing in the prior art. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a cutter head of a shaft boring machine and a shaft boring machine, and the specific technical solutions are as follows:
[0005] A cutter head of a shaft boring machine includes a cutter head main body and a support system; the cutter head main body includes an intermediate cutter head body and an annular cutter head body, the annular cutter head body is sleeved on the outer periphery of the intermediate cutter head body, and the annular cutter head body is detachably connected to the intermediate cutter head body through a connecting member; the support system is arranged on the intermediate cutter head body.
[0006] Further, the intermediate cutter head body includes an intermediate connecting frame and a plurality of radial arms evenly arranged along the circumference of the intermediate connecting frame. The first ends of the plurality of radial arms are fixedly connected to the intermediate connecting frame and form a conical structure; the second ends of the plurality of radial arms are all provided with connecting bosses.
[0007] Further, a conical surface is provided on the annular cutter head body, a groove is provided on the side of the annular cutter head body away from the conical surface, and the boss is matched with the groove and is detachably connected through a connecting member.
[0008] Further, the annular cutter head body includes a plurality of annular segments, and the groove is arranged on the annular segment; the number of annular segments is the same as the number of radial arms.
[0009] Further, an annular rib plate and a panel are connected between two adjacent arm portions. The annular rib plate is disposed on the side surface of the intermediate cutter head body and connects two adjacent arm portions. The panel is disposed on the conical structure side, and the panel connects two adjacent arm portions and the annular rib plate. The annular rib plate, the panel and the arm portion cooperate to form an annular box structure.
[0010] Further, the support system is disposed inside the annular box structure. A plurality of groups of the support system are arranged circumferentially along the intermediate connecting frame, and the central axis of the support system is parallel to the central axis of the intermediate connecting frame.
[0011] Further, the support system includes a support fixing cylinder, a driving mechanism and a movable support. The support fixing cylinder is fixedly disposed on the annular rib plate at the second end of the arm portion. The fixed end of the driving mechanism is fixedly connected to the support fixing cylinder, and the telescopic end of the driving mechanism is connected to the movable support;
[0012] A through hole for the movable support to pass through is provided on the panel.
[0013] Further, the movable support includes a fixing frame and a support shoe. The upper end of the fixing frame is fixedly connected to the telescopic end of the driving mechanism, and the lower end of the fixing frame is hinged to the support shoe.
[0014] Further, hob cutters are provided on both the intermediate cutter head body and the annular cutter head body.
[0015] A shaft tunneling machine includes the shaft tunneling machine cutter head as described above.
[0016] Applying the technical solution of the present utility model has the following beneficial effects:
[0017] (1) The present utility model provides a shaft tunneling machine cutter head, including a cutter head main body and a support system; the cutter head main body includes an intermediate cutter head body and an annular cutter head body. The annular cutter head body is sleeved on the outer periphery of the intermediate cutter head body, and the annular cutter head body and the intermediate cutter head body are detachably connected by a connecting member; the support system is disposed on the intermediate cutter head body. In the present utility model, the intermediate cutter head body and the annular cutter head body are combined to form the cutter head main body. By replacing the annular cutter head bodies with different diameters, it is possible to meet the excavation requirements of shaft wells with multiple diameters using one tunneling machine, and it is also possible to meet the excavation requirements of a large-size reduction in diameter as the depth of the same shaft well increases. This solves the problems of resource waste and cost increase caused by the need to configure multiple shaft tunneling machines in the prior art; by providing a support system to support and lift the cutter head main body, a certain distance is formed between the cutter head main body and the working face, which is convenient for replacing the hob cutters.
[0018] (2) In the present utility model, the intermediate cutter head body and the annular cutter head body are positioned through connecting bosses and grooves and are detachably connected through connecting pieces, so that the disassembly and assembly of the annular cutter head body are simple and efficient; in addition, the connection method of the connecting bosses and the grooves has relatively low requirements for connection accuracy, reducing the manufacturing difficulty and cost.
[0019] (3) In the present utility model, multiple groups of the support systems are provided, which can improve the support stability. At the same time, the tunneling attitude can be adjusted by adjusting the support heights of different support systems to prevent the cutter head from tunneling off track.
[0020] In addition to the purposes, features and advantages described above, the present utility model has other purposes, features and advantages. The following will refer to the drawings to make a further detailed description of the present utility model. Description of the Drawings
[0021] The drawings constituting a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:
[0022] Figure 1 is a schematic structural view of the cutter head of the shaft tunneling machine in the embodiment of the present utility model;
[0023] Figure 2 is a schematic structural view of the cutter head body in the embodiment of the present utility model, wherein, Fig. (a) is a bottom view of the cutter head body, and Fig. (b) is a top view of the cutter head body;
[0024] Figure 3 is a schematic structural view of the intermediate cutter head body;
[0025] Figure 4 is Figure 3 a cross-sectional view taken along B-B in
[0026] Figure 5 is a three-dimensional perspective view of the intermediate cutter head body, wherein, Fig. (a) is a bottom view of the intermediate cutter head body, and Fig. (b) is a top view of the intermediate cutter head body;
[0027] Figure 6 is a schematic view of the assembly of the intermediate cutter head body and the annular cutter head body;
[0028] Figure 7 is a schematic view of the assembly of the intermediate cutter head body and annular cutter head bodies with different diameters, wherein, Figs. (a)-(c) are arranged in ascending order of the diameter of the annular cutter head body;
[0029] Figure 8 is a schematic view of a part of the structure of the shaft tunneling machine;
[0030] Among them, 1. Cutter head main body, 1.1 Intermediate cutter head body, 1.1.1 Intermediate connecting frame, 1.1.2 Spoke arm, 1.1.3 Connecting boss, 1.1.4 Annular rib plate, 1.1.5 Panel, 1.2 Annular cutter head body, 1.3 Connecting piece, 2. Support system, 2.1 Support fixing cylinder, 2.2 Driving mechanism, 2.3 Movable support, 2.3.1 Fixing frame, 2.3.2 Support shoe, 3. Hob, 4. Main drive, 5. Shield support system. Detailed implementation manners
[0031] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. However, the present utility model can be implemented in many different ways as defined and covered.
[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0033] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.
[0034] Embodiment
[0035] See Figures 1-6 , this embodiment provides a cutter head for a shaft tunneling machine, including a cutter head main body 1 and a support system 2; the cutter head main body 1 includes an intermediate cutter head body 1.1 and an annular cutter head body 1.2, the annular cutter head body 1.2 is sleeved on the outer periphery of the intermediate cutter head body 1.1, and the annular cutter head body 1.2 and the intermediate cutter head body 1.1 are detachably connected by a connecting piece 1.3; the support system 2 is arranged on the intermediate cutter head body 1.1.
[0036] The middle cutter head body 1.1 includes a middle connecting frame 1.1.1 and a plurality of radial arms 1.1.2 evenly arranged circumferentially along the middle connecting frame 1.1.1. The first ends of the plurality of radial arms 1.1.2 are fixedly connected to the middle connecting frame 1.1.1 and form a conical structure; connection bosses 1.1.3 are provided at the second ends of the plurality of radial arms 1.1.2. In this embodiment, preferably, 6 radial arms 1.1.2 are provided, and the first ends of the 6 radial arms 1.1.2 are welded to the middle connecting frame 1.1.1.
[0037] See Figure 2 Figures (a) and (b) in, a conical surface is provided on the annular cutter head body 1.2, a groove is provided on a side of the annular cutter head body 1.2 away from the conical surface, and the boss 1.1.3 is matched with the groove and is detachably connected through a connecting member 1.3; See Figure 6 , in this embodiment, preferably, the connecting member 1.3 is a bolt.
[0038] Preferably, the annular cutter head body 1.2 includes a plurality of annular segments, and the groove is provided on the annular segment; the number of annular segments is the same as the number of radial arms 1.1.2, and the plurality of annular segments are combined to form the annular cutter head body 1.2. By dividing the annular cutter head body 1.2 into a plurality of annular segments, it is convenient for assembly and transportation.
[0039] See Figure 2 , Figure 3 and Figure 5 Figures (a) and (b) in, an annular rib plate 1.1.4 and a panel 1.1.5 are connected between two adjacent radial arms 1.1.2. The annular rib plate 1.1.4 is provided on a side surface of the middle cutter head body 1.1 and connects two adjacent radial arms 1.1.2; the panel 1.1.5 is provided on the side of the conical structure, and the panel 1.1.5 connects two adjacent radial arms 1.1.2 and the annular rib plate 1.1.4; the annular rib plate 1.1.4, the panel 1.1.5 and the radial arms 1.1.2 cooperate to form an annular box structure.
[0040] See Figure 3 and Figure 4 , the support system 2 is arranged inside the annular box structure. A plurality of groups of the support system 2 are arranged circumferentially along the middle connecting frame 1.1.1, and the central axis of the support system 2 is parallel to the central axis of the middle connecting frame 1.1.1. Preferably, in this embodiment, 3 groups of the support system 2 are provided, and each group of the support system 2 is arranged between two adjacent radial arms 1.1.2. The included angle between two adjacent groups of the support system 2 is 120°. By providing 3 groups of the support system 2, the stability of the support can be improved. At the same time, by adjusting the support height of different support systems 2, the tunneling attitude can be adjusted to prevent the cutter head from tunneling off track.
[0041] SeeFigure 4 , the support system 2 includes a support fixed cylinder 2.1, a driving mechanism 2.2 and a movable support 2.3. The support fixed cylinder 2.1 is fixedly arranged on the annular rib plate 1.1.4 at the second end of the boom 1.1.2. The fixed end of the driving mechanism 2.2 is fixedly connected to the support fixed cylinder 2.1, and the telescopic end of the driving mechanism 2.2 is connected to the movable support 2.3; preferably, the movable support 2.3 includes a fixed frame 2.3.1 and a support shoe 2.3.2. The upper end of the fixed frame 2.3.1 is fixedly connected to the telescopic end of the driving mechanism 2.2, and the lower end of the fixed frame 2.3.1 is hinged to the support shoe 2.3.2; in this embodiment, the driving mechanism 2.2 adopts an oil cylinder; a through hole for the movable support 2.3 to pass through is provided on the panel 1.1.5.
[0042] See Figure 1 and Figure 3 , on the boom 1.1.2 of the conical surface of the intermediate cutter head body 1.1, a plurality of hob cutters 3 are evenly distributed along the length direction of the boom 1.1.2, and a plurality of hob cutters 3 are staggered on the conical surface of the annular cutter head body 1.2.
[0043] When the shaft tunneling machine needs to replace the cutters, start the 3 groups of support systems 2, make the support shoes 2.3.2 support on the working face, and jack up the shaft tunneling machine in the reverse direction by a certain distance through the support force of the oil cylinder, so as to form a certain spacing between the hob cutters 3 on the cutter head body 1 and the working face, which is convenient for the replacement of the hob cutters 3; after the replacement of the hob cutters 3 is completed, the oil cylinder slowly contracts. At the same time, the tunneling attitude of the cutter head is adjusted by adjusting the support height of different oil cylinders to prevent the tunneling attitude of the cutter head from deviating. In addition, during the tunneling process, when the tunneling attitude deviates, the support system 2 inside the cutter head body 1 can be used at any time to adjust the cutter head attitude.
[0044] In the present utility model, the intermediate cutter head body 1.1 and the annular cutter head body 1.2 are combined to form the cutter head body 1. By replacing the annular cutter head body 1.2 with different diameters, it is possible to meet the excavation requirements of shaft wells with multiple diameters using one tunneling machine, and it can also meet the excavation requirements of a large-size reduction in diameter as the depth of the same shaft well increases, solving the problems of resource waste and cost increase caused by the need to configure multiple shaft tunneling machines in the prior art.
[0045] This embodiment also provides a shaft tunneling machine, including the shaft tunneling machine cutter head as described above, and having the same beneficial effects. See Figure 8 , in this embodiment, the intermediate cutter head body 1.1 is connected to the main drive 4, and the main drive 4 is preferably a drive motor; shield support systems 5 are provided on both sides of the main drive 4. The shield support systems 5 can support the inner wall of the shaft, play a role in stabilizing the shaft tunneling machine, and provide a reaction force for tunneling. The structure and operation principle of the shield support systems 5 refer to the prior art.
[0046] When multiple vertical shafts with different diameters need to be excavated, the diameter of the cutter head can be changed by replacing the annular cutter head body 1.2, meeting the excavation requirements of vertical shafts with different diameters. The operation is simple. The diameter change process can be achieved by using the intermediate cutter head body 1.1 and annular cutter head bodies 1.2 with different diameters, as Figure 7 shown.
[0047] In the same shaft, when necking excavation is required at different shaft depths, the annular cutter head body 1.2 with different diameters can be replaced according to different excavation requirements. Specifically, when the shaft depth is relatively shallow, the shaft boring machine can be directly lifted to the ground to complete the replacement of the annular cutter head body 1.2, and then secondary excavation can be carried out; when the shaft depth is relatively deep and it is not convenient to lift the shaft boring machine to the ground, multiple annular segments of the annular cutter head body can be transported to the bottom of the cutter head and then assembled and replaced, so as to achieve the change of the excavation diameter of the cutter head.
[0048] The following method can be used to replace the annular cutter head body 1.2 underground: Lift the whole shaft boring machine and tighten it against the inner wall of the shaft; Demolish the annular cutter head body 1.2 in blocks and transport the annular segments to the outside of the shaft one by one along the central transportation channel of the boring machine; Use the drill and blast method to expand the inner wall of the bottom of the shaft to the required diameter and transport the annular segments of the new annular cutter head body 1.2 to the bottom of the vertical shaft; Install the annular cutter head body 1.2, lower the shaft boring machine so that the connecting boss 1.1.3 on the outer periphery of the intermediate cutter head body 1.1 is embedded in the groove of the annular cutter head body 1.2, and then fasten it with bolts to complete the process of replacing the annular cutter head body 1.2.
[0049] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A cutter head of a shaft tunneling machine, characterized in that, It includes a cutter head main body (1) and a support system (2); the cutter head main body (1) includes an intermediate cutter head body (1.1) and an annular cutter head body (1.2), the annular cutter head body (1.2) is sleeved on the outer periphery of the intermediate cutter head body (1.1), and the annular cutter head body (1.2) is detachably connected to the intermediate cutter head body (1.1) through a connecting member (1.3); the support system (2) is arranged on the intermediate cutter head body (1.1).
2. The cutter head of the shaft tunneling machine according to claim 1, characterized in that, The intermediate cutter head body (1.1) includes an intermediate connecting frame (1.1.1) and a plurality of radial arms (1.1.2) evenly arranged along the circumference of the intermediate connecting frame (1.1.1). The first ends of the plurality of radial arms (1.1.2) are fixedly connected to the intermediate connecting frame (1.1.1) and form a conical structure; the second ends of the plurality of radial arms (1.1.2) are all provided with connecting bosses (1.1.3).
3. The cutter head of the shaft tunneling machine according to claim 2, wherein, The annular cutter head body (1.2) is provided with a conical surface, and a groove is provided on the side of the annular cutter head body (1.2) away from the conical surface. The boss (1.1.3) is matched with the groove and is detachably connected through a connecting member (1.3).
4. The cutter head of the shaft tunneling machine according to claim 3, characterized in that The annular cutter head body (1.2) includes a plurality of annular segments, and the groove is arranged on the annular segment; the number of annular segments is the same as the number of radial arms (1.1.2).
5. The cutter head of the shaft tunneling machine according to claim 2, wherein An annular rib plate (1.1.4) and a panel (1.1.5) are connected between two adjacent radial arms (1.1.2). The annular rib plate (1.1.4) is arranged on the side surface of the intermediate cutter head body (1.1) and connects two adjacent radial arms (1.1.2); the panel (1.1.5) is arranged on the side of the conical structure, and the panel (1.1.5) connects two adjacent radial arms (1.1.2) and the annular rib plate (1.1.4); the annular rib plate (1.1.4), the panel (1.1.5) and the radial arms (1.1.2) cooperate to form an annular box structure.
6. The cutter head of the shaft tunneling machine according to claim 5, characterized in that, The support system (2) is arranged inside the annular box structure. A plurality of groups of the support system (2) are arranged along the circumference of the intermediate connecting frame (1.1.1), and the central axis of the support system (2) is parallel to the central axis of the intermediate connecting frame (1.1.1).
7. The cutter head of the shaft tunneling machine according to claim 6, characterized in that, The support system (2) includes a support fixed cylinder (2.1), a driving mechanism (2.2) and a movable support (2.3). The support fixed cylinder (2.1) is fixedly arranged on the annular rib plate (1.1.4) at the second end of the radial arm (1.1.2). The fixed end of the driving mechanism (2.2) is fixedly connected to the support fixed cylinder (2.1), and the telescopic end of the driving mechanism (2.2) is connected to the movable support (2.3); The panel (1.1.5) is provided with a through hole for the movable support (2.3) to pass through.
8. The cutter head of the shaft tunneling machine according to claim 7, wherein, The movable support (2.3) includes a fixed frame (2.3.1) and a support shoe (2.3.2). The upper end of the fixed frame (2.3.1) is fixedly connected to the telescopic end of the driving mechanism (2.2), and the lower end of the fixed frame (2.3.1) is hinged to the support shoe (2.3.2).
9. The cutter head of the shaft tunneling machine according to any one of claims 1-8, characterized in that, Hob cutters (3) are arranged on both the intermediate cutter head body (1.1) and the annular cutter head body (1.2).
10. A shaft tunneling machine, characterized in that, Comprising a cutter head of a shaft tunneling machine according to any one of claims 1-9.