Bucket wheel type vertical shaft tunneling cutter head and vertical shaft tunneling machine

Abstract

The invention relates to a bucket wheel type vertical shaft tunneling cutterhead and a vertical shaft tunneling machine. The vertical shaft tunneling cutterhead comprises a hollow annular bucket wheel disc, and hobs are arranged on the two opposite side faces and the rim face of the bucket wheel disc; the vertical shaft tunneling cutterhead further comprises buckets arranged on the bucket wheel disc at intervals in the circumferential direction of the bucket wheel disc and a slag collecting mechanism arranged in the bucket wheel disc. Channels penetrating through the inner side face and the outer side face of the bucket wheel disc are formed in the positions, corresponding to the buckets, of the bucket wheel disc, and the buckets communicate with the slag collecting mechanism through the corresponding channels, so that slag in the buckets enters the slag collecting mechanism through the corresponding channels. When the vertical shaft tunneling cutterhead is applied, the bucket wheel disc rotates in the direction of the central axis extending in the horizontal direction, the hobs on the two side faces and the wheel flange face of the bucket wheel disc can break rocks, meanwhile, in the rock breaking process, the bucket can convey slag to a slag collecting mechanism, cooperative continuous operation of rock breaking and slag discharging in the working process of a vertical shaft tunneling machine is achieved, and the working efficiency is improved. The tunneling efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of shaft excavation equipment technology, specifically to a bucket wheel type shaft excavation cutterhead and shaft excavation machine. Background Technology

[0002] To adapt to the complex, variable, and uncertain characteristics of vertical shaft drilling wells traversing geological formations, and given the practical challenges of high risks, serious occupational injuries, and equipment shortages associated with drill-and-blast well drilling, high-performance vertical shaft excavation equipment is urgently needed.

[0003] The cutterhead is an essential component of shaft tunneling equipment. However, existing cutterheads have complex structures, poor slag removal efficiency, low rock breaking efficiency, unstable surrounding rock, and low transportation efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a bucket wheel type shaft tunneling cutterhead and shaft tunneling machine, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0005] To achieve the aforementioned objective, a first aspect of the present invention provides a shaft excavation cutterhead, which includes a hollow ring-shaped bucket wheel, wherein the bucket wheel is provided with roller cutters on its opposite sides and rim surface. The shaft excavation cutterhead also includes buckets spaced circumferentially on the bucket wheel and a slag collection mechanism disposed inside the bucket wheel. The bucket wheel has channels that penetrate the inner and outer sides of the bucket wheel corresponding to the positions of each bucket. Each bucket is connected to the slag collection mechanism through the corresponding channel, so that the material in the bucket enters the slag collection mechanism through the corresponding channel.

[0006] Optionally, in the aforementioned vertical shaft excavation cutterhead, the bucket wheel includes an annular rim portion, a first side portion and a second side portion formed by connecting the two ends of the rim portion and extending inward to the rim portion respectively; The wheel rim is provided with the hobbing cutters at intervals along its circumferential direction, the first side is provided with the hobbing cutters at intervals along its circumferential direction, and the second side is provided with the hobbing cutters along its circumferential direction.

[0007] Optionally, each bucket extends sequentially through the first side, the rim, and the second side; each channel extends sequentially through the first side, the rim, and the second side.

[0008] Optionally, each bucket includes shovel teeth arranged sequentially along its length, with one end of each shovel tooth fixedly disposed on the bucket wheel disc and the end of the shovel tooth protruding from the outer side of the bucket wheel disc.

[0009] Optionally, the first side portion includes a body section whose end is connected to the wheel flange portion and an extension section connected to the other end of the body section and extending into the inner side of the bucket wheel disc. The extension section is annular and is used for the installation of the vertical shaft excavation cutterhead. The body section is provided with the roller cutters at intervals along the circumferential direction of the bucket wheel disc.

[0010] Optionally, the rim portion has an arc shape that convexes outward in the radial direction from the center.

[0011] Optionally, the slag collection mechanism includes a slag collection cylinder disposed inside the bucket wheel disc. The slag collection cylinder extends from the first side to the second side, with one end connected to the first side and the other end separated from the second side, such that a slag collection space for slag collection is formed between the outer surface of the slag collection cylinder and the bucket wheel disc. A slag outlet is formed between the other end of the slag collection cylinder and the second side. The slag collection space is connected to all the channels and communicates with the outside through the slag outlet.

[0012] Optionally, the outer diameter of the slag collecting cylinder gradually decreases from one end of the slag collecting cylinder to the other end of the slag collecting cylinder.

[0013] Optionally, in the aforementioned vertical shaft excavation cutterhead, the slag collection mechanism further includes partitions spaced circumferentially within the slag collection space. Each partition is connected to the outer surface of the bucket wheel and the slag collection cylinder, and all the partitions divide the slag collection space into several spatial units. Each spatial unit is connected to at least one of the channels, and all the spatial units are connected to the slag outlet.

[0014] Optionally, the number of partitions is the same as the number of channels, so that the space units are arranged in a one-to-one correspondence with the channels.

[0015] Optionally, each of the partitions is disposed on the side of the corresponding bucket.

[0016] To achieve the aforementioned objective, a second aspect of the present invention provides a shaft tunneling machine comprising the aforementioned shaft tunneling cutterhead, wherein the bucket wheel has a central axis and is rotatable about the central axis, the central axis extending in a horizontal direction.

[0017] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: When the cutterhead of the present invention is used in the vertical shaft excavation, the bucket wheel rotates along the central axis extending horizontally. The rollers on both sides of the bucket wheel and the rim can break the rock. At the same time, during the rock breaking process, the bucket can also send the slag to the slag collection mechanism, realizing the coordinated and continuous operation of rock breaking and slag removal during the operation of the vertical shaft excavator, thereby improving the excavation efficiency. Attached Figure Description

[0018] The disclosure of this invention will become more apparent from the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention.

[0019] Figures 1 to 2 This is a three-dimensional structural diagram of a bucket wheel type vertical shaft excavation cutterhead from different perspectives according to an embodiment of the present invention; Figure 3 for Figure 1 Left view of the shaft excavation cutterhead; Figure 4 for Figure 1 Right view of the shaft excavation cutterhead; Figure 5 for Figure 1 Front view of the shaft excavation cutterhead; In the picture: 1. Bucket wheel disc; 1a. First side section; 1a1. Main body section; 1a2. Extension section; 1b. Second side section; 1c. Wheel rim section; 2. Roller cutter; 3. Bucket; 4. Channel; 5. Slag collection cylinder; 6. Slag outlet; 7. Baffle plate; 101. Central axis line. Detailed Implementation

[0020] Referring to the accompanying drawings and specific embodiments, the structure, composition, features, and advantages of the shaft boring machine cutterhead of the present invention will be described below by way of example; however, all descriptions should not be construed as limiting the present invention in any way.

[0021] Furthermore, for any single technical feature described or implied in the embodiments submitted herein, or any single technical feature shown or implied in the various drawings, the present invention still operates to continue to combine or delete any of these technical features or their equivalents without any technical obstacle, and thus these further embodiments according to the present invention should also be considered to be within the scope of the description herein.

[0022] See Figures 1-2 This diagram shows a three-dimensional structural schematic of the bucket wheel type vertical shaft cutterhead from different perspectives. Figures 3 to 5 They are shown respectively Figure 1 The left, right and front views of the shaft excavation cutterhead show that the cutterhead can achieve rock breaking, slag guiding, slag collection and gravity-overcoming slag discharge functions, that is, efficient rock breaking and slag collection in one unit.

[0023] As shown in the figure, the shaft excavation cutterhead includes a hollow ring-shaped bucket wheel 1, buckets 3 spaced circumferentially on the bucket wheel 1, and a slag collection mechanism inside the bucket wheel 1. Channels 4 are opened on the bucket wheel 1 corresponding to the positions of each bucket 3, penetrating the inner and outer sides of the bucket wheel 1. Each bucket 3 is connected to the slag collection mechanism through the corresponding channel 4, so that the slag in the bucket 3 enters the slag collection mechanism through the corresponding channel 4. When the shaft excavation cutterhead is applied to a shaft excavator, the slag in the slag collection mechanism is transported outward by the vertical conveyor of the shaft excavator.

[0024] The bucket wheel 1 is equipped with cutter 2 on both sides and the rim surface, which is used for breaking rocks.

[0025] In an optional embodiment, see Figure 1 and Figure 2 The bucket wheel 1 includes an annular rim portion 1c, a first side portion 1a and a second side portion 1b connected to the two ends of the rim portion 1c and extending inward to the rim portion 1c respectively. The rim portion 1c has an arc shape that convexes outward in the radial direction in the middle. Roller cutters 2 are spaced apart on the rim portion 1c along its circumferential direction and are evenly distributed on the rim portion 1c along its circumferential direction. Roller cutters 2 are spaced apart on the first side portion 1a along its circumferential direction and are evenly distributed on the first side portion 1a along its circumferential direction. Roller cutters 2 are spaced apart on the second side portion 1b along its circumferential direction and are evenly distributed on the second side portion 1b along its circumferential direction.

[0026] As can be seen from the figure, each bucket 3 extends sequentially through the first side 1a, the rim 1c, and the second side 1b; each channel 4 extends sequentially through the first side 1a, the rim 1c, and the second side 1b. Each channel 4 is located on the side of the corresponding bucket 3. Each bucket 3 includes shovel teeth arranged sequentially along its length. One end of each shovel tooth is fixedly mounted on the bucket wheel 1, and the end of the shovel tooth protrudes from the outer side of the bucket wheel 1. Thus, the height of the bucket 3 is higher than the outer side of the bucket wheel 1, which facilitates shoveling materials.

[0027] The number of hobs 2 on the first side 1a, the second side 1b, and the rim 1c is unlimited, as shown in the following figure. Figure 1 and Figure 2 One or more cutters 2 are provided on the first side 1a between two adjacent buckets 3, one or more cutters 2 are provided on the second side 1b between two adjacent buckets 3, and one or more cutters 2 are provided on the wheel flange 1c between two adjacent buckets 3. The specific number can be adjusted according to the actual situation.

[0028] In an optional embodiment, the hob 2 is a disc hob.

[0029] See also Figure 2 and Figure 4 The first side portion 1a includes a body section 1a1 connected at one end to the wheel flange portion 1c and an extension section 1a2 connected to the other end of the body section 1a1 and extending towards the inside of the bucket wheel 1. The body section 1a1 is provided with roller cutters 2 at intervals along the circumferential direction of the bucket wheel 1. The extension section 1a2 is annular and is used for the installation of the shaft excavation cutterhead. When the shaft excavation cutterhead is applied to the shaft excavation machine, the shaft excavation cutterhead is connected to the cantilever of the shaft excavation machine through the extension section 1a2. The plane on which the extension section 1a2 is located is a vertical plane.

[0030] See Figure 1 and Figure 3 The slag collection mechanism includes a slag collection cylinder 5 disposed inside the bucket wheel disc 1. The slag collection cylinder 5 extends from the first side 1a to the second side 1b, with one end of the slag collection cylinder 5 connected to the first side 1a and the other end separated from the second side 1b, so that a slag collection space for slag collection is formed between the outer side of the slag collection cylinder 5 and the bucket wheel disc 1. A slag outlet 6 is formed between the other end of the slag collection cylinder 5 and the second side 1b. The slag collection space is connected to all channels 4 and is connected to the outside through the slag outlet.

[0031] In an optional embodiment, one end of the slag collection cylinder 5 is connected to the body section 1a1 of the first side portion 1a or to the connection between the body section 1a1 and the extension section 1a2.

[0032] To facilitate the downward discharge of slag under gravity, the outer diameter of the slag collecting cylinder 5 gradually decreases from one end of the slag collecting cylinder 5 (i.e. the end where the slag collecting cylinder 5 is connected to the first side part 1a) to the other end of the slag collecting cylinder 5, so that one side wall of the slag collecting space is a conical side wall. During slag discharge, as the bucket wheel 1 rotates, the slag in the slag collecting space is discharged downward through the conical side wall under gravity, making slag discharge convenient and quick.

[0033] Then by Figure 1 and Figure 3 As can be seen, the slag collection mechanism also includes baffles 7 spaced circumferentially along the bucket wheel 1 within the slag collection space. Each baffle 7 is connected to the inner side of the bucket wheel 1 and the outer side of the slag collection cylinder 5, respectively. All baffles 7 divide the slag collection space into several spatial units. The number of baffles 7 is the same as the number of channels 4, so that the spatial units correspond one-to-one with the channels 4. All spatial units are connected to the slag outlet 6, and each baffle 7 is located on the side of the corresponding bucket 3. The arrangement of these baffles 7 can prevent slag from spinning idly in the slag collection space, and combined with the conical sidewall of the slag collection space, it can promptly discharge the slag from the slag collection space to the cutterhead.

[0034] During the tunneling operation of this shaft excavator, the cutterhead is vertically positioned, while the lower end of the vertical conveyor of the shaft excavator is located inside the bucket wheel disc. (See [link]). Figure 5The bucket wheel 1 has a central axis 101, and the bucket wheel 1 can rotate around the central axis 101. The central axis 101 extends horizontally, and the central axis of the slag collection cylinder 5 is consistent with the central axis of the bucket wheel 1. Figure 3 The bucket wheel 1 rotates counterclockwise, and the roller cutter 2 on the bucket wheel 1 breaks the rock. At the same time, the bucket 3 shovels slag during the rotation. During the rotation, the slag in the bucket 3 falls into the corresponding space unit of the slag collection space and falls onto the partition plate 7. When the slag rotates to the highest point, the slag falls down through the conical side wall under its own gravity onto the vertical conveyor. The vertical conveyor is used to transport the slag to the outside of the shaft.

[0035] As the cutterhead rotates, the bucket breaks rocks, shovels and collects slag. During the rotation, the slag falls onto the vertical conveyor under its own weight and is transported to the outside of the shaft. This achieves the functions of cutting rock, shoveling slag, and collecting slag during the tunneling process of the shaft boring machine, thereby enabling continuous operation of rock breaking and slag removal in coordination during the operation of the shaft boring machine and improving tunneling efficiency.

[0036] In addition, in the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to direct connection or indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0037] The above embodiments are only used to illustrate the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the embodiments of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the embodiments of the present invention, and the patent protection scope of the embodiments of the present invention should be defined by the claims.

Claims

1. A vertical shaft tunneling cutterhead, characterized in that, The vertical shaft excavation cutterhead includes a hollow ring-shaped bucket wheel, and the bucket wheel is provided with roller cutters on its opposite sides and rim surface. The shaft excavation cutterhead also includes buckets spaced circumferentially on the bucket wheel and a slag collection mechanism disposed inside the bucket wheel. The bucket wheel has channels that penetrate the inner and outer sides of the bucket wheel corresponding to the positions of each bucket. Each bucket is connected to the slag collection mechanism through the corresponding channel, so that the material in the bucket enters the slag collection mechanism through the corresponding channel.

2. The shaft boring machine cutterhead according to claim 1, characterized in that, The bucket wheel includes an annular rim portion, a first side portion and a second side portion formed by connecting the two ends of the rim portion and extending inward to the rim portion respectively; The wheel rim is provided with the hobbing cutters at intervals along its circumferential direction, the first side is provided with the hobbing cutters at intervals along its circumferential direction, and the second side is provided with the hobbing cutters along its circumferential direction.

3. The shaft boring machine cutterhead according to claim 2, characterized in that, Each bucket extends sequentially through the first side, the rim, and the second side; each channel extends sequentially through the first side, the rim, and the second side.

4. The shaft boring machine cutterhead according to claim 3, characterized in that, Each bucket includes shovel teeth arranged sequentially along its length, with one end of each shovel tooth fixedly mounted on the bucket wheel disc and the end of the shovel tooth protruding from the outer side of the bucket wheel disc.

5. The shaft boring machine cutterhead according to claim 2, characterized in that, The first side portion includes a body section whose end is connected to the wheel rim portion and an extension section connected to the other end of the body section and extending inward toward the bucket wheel disc. The extension section is annular and is used for mounting the shaft boring cutterhead. The body section is provided with the roller cutters spaced apart along the circumferential direction of the bucket wheel disc; and / or, The rim portion has an arc shape that bulges outward in the radial direction from the center.

6. The shaft boring machine cutterhead according to claim 2, characterized in that, The slag collection mechanism includes a slag collection cylinder disposed inside the bucket wheel disc. The slag collection cylinder extends from the first side to the second side, with one end connected to the first side and the other end separated from the second side, so that a slag collection space for slag collection is formed between the outer surface of the slag collection cylinder and the bucket wheel disc. A slag outlet is formed between the other end of the slag collection cylinder and the second side. The slag collection space is connected to all the channels and communicates with the outside through the slag outlet.

7. The shaft boring machine cutterhead according to claim 6, characterized in that, The outer diameter of the slag collecting cylinder gradually decreases from one end of the slag collecting cylinder to the other end of the slag collecting cylinder.

8. The shaft boring machine cutterhead according to claim 6, characterized in that, The slag collection mechanism further includes partitions spaced circumferentially within the slag collection space. Each partition is connected to the outer side of the bucket wheel and the slag collection cylinder. All the partitions divide the slag collection space into several spatial units. Each spatial unit is connected to at least one of the channels, and all the spatial units are connected to the slag outlet.

9. The shaft boring machine cutterhead according to claim 8, characterized in that, The number of partitions is the same as the number of channels, so that the spatial units are arranged in a one-to-one correspondence with the channels; and / or, Each of the aforementioned baffles is disposed on the side of the corresponding bucket.

10. A shaft boring machine, characterized in that, A vertical shaft excavation cutterhead comprising any one of claims 1 to 9, wherein the bucket wheel has a central axis, the bucket wheel is rotatable about the central axis, and the central axis extends in a horizontal direction.

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