Outer-ring type shaft tunneling machine

Abstract

The present invention discloses an outer-ring shaft boring machine, comprising a track base and at least one boring machine, wherein the track base is fixed to the inner wall of the shaft along the circumference of the shaft, and the track base is provided with a walking beam and a drive beam; at least one boring machine is movably mounted on the track base, and the boring machine has a main frame provided with a driving mechanism and a walking mechanism, wherein the driving mechanism can cooperate with the driving beam, and when the driving mechanism cooperates with the driving beam, the walking mechanism can be movably mounted on the walking beam. The outer-ring shaft boring machine of the present invention can perform boring operations in large-sized circular, rectangular, elliptical, and other irregular-shaped shafts, greatly expanding the equipment's applicability, ensuring safety and efficiency, and improving the working environment for construction personnel.

Description

Technical Field

[0001] The present invention relates to the technical field of vertical shaft boring equipment, in particular to an outer ring type vertical shaft boring machine. Background Art

[0002] Compared with conventional circular shaft boring machines, the development of tunneling equipment capable of excavating shafts with irregular cross-sections is technically difficult and has progressed relatively slowly. However, large-sized circular, rectangular, and other irregular cross-sections also have their own advantages: first, there is a large market demand for large-sized cross-section applications, which are currently mainly based on traditional open-cut methods; second, compared with circular cross-sections, the effective usable area of irregular cross-sections is usually increased by more than a quarter. In urban vertical shafts, rainwater and sewage pipe network engineering wells, shield working shafts, and foundation pits for various large projects are mainly large-sized circular, rectangular, and other irregular cross-sections. Therefore, research on tunneling equipment technology capable of excavating large-diameter circular, rectangular, and other irregular cross-sections is imperative and is also an inevitable trend and direction for the development of shield technology.

[0003] At present, there are very few cases where shaft boring machines are directly applied in construction, and there are only a handful of related technical solutions. Therefore, it is important to design an excavation and driving equipment that can reduce construction costs and is efficient and safe. This will play a significant role and have far-reaching significance in improving the excavation and driving technology level of shaft projects. Summary of the Invention

[0004] The purpose of the present invention is to provide an outer ring shaft boring machine, which can realize the boring of large-sized circular, rectangular, elliptical and other special-shaped shafts, greatly improve the application range of the equipment, be safe and efficient, and greatly improve the working environment of construction personnel.

[0005] The above-mentioned implementation objectives of the present invention are mainly achieved by the following technical solutions:

[0006] An outer ring type shaft boring machine, comprising:

[0007] A track base is fixed on the inner wall of the shaft along the circumference of the shaft, and a walking beam and a driving beam are provided on the track base;

[0008] At least one excavation main machine is movably arranged on the track base. The excavation main machine has a main frame. The main frame is provided with a driving mechanism and a walking mechanism. The driving mechanism can cooperate with the driving beam. When the driving mechanism cooperates with the driving beam, the walking mechanism can be movably arranged on the walking beam.

[0009] In a preferred embodiment of the present invention, the driving beam is a chain arranged along the circumference of the shaft; the driving mechanism includes a gear located above the main frame, the gear is driven and connected to the chain, and the driving mechanism has a driving motor, and the rotating shaft of the driving motor is connected to the gear.

[0010] In a preferred embodiment of the present invention, the walking beam includes an upper walking beam and a lower walking beam arranged along the vertical direction of the track base, and the walking mechanism includes an upper walking wheel located at the upper end of the main frame and a lower walking wheel located at the lower end of the main frame, the upper walking wheel rollingly cooperates with the upper walking beam, and the lower walking wheel rollingly cooperates with the lower walking beam.

[0011] In a preferred embodiment of the present invention, the upper walking beam has an upper walking surface and a side walking surface perpendicular to the upper walking surface, the upper end of the main frame is connected to a first outer auxiliary wheel, the upper walking wheel is in rolling engagement with the upper walking surface, and the first outer auxiliary wheel is in rolling engagement with the side walking surface.

[0012] In a preferred embodiment of the present invention, the lower walking beam has a lower walking surface and an outer walking surface and an inner walking surface perpendicular to the lower walking surface, the lower end of the main frame is connected to a second outer auxiliary wheel and an inner auxiliary wheel that cooperate with the lower walking wheel, the lower walking wheel rolls with the lower walking surface, the second outer auxiliary wheel rolls with the outer walking surface, and the inner auxiliary wheel rolls with the inner walking surface.

[0013] In a preferred embodiment of the present invention, the tunneling main machine also includes a locking mechanism, which is arranged on at least one side of the main frame. The locking mechanism includes a connected locking cylinder and a brake, and the brake can be locked or separated from the walking beam.

[0014] In a preferred embodiment of the present invention, an excavation mechanism is connected to the main frame, and the excavation mechanism includes a first driving arm rotatably connected to the main frame, a second driving arm rotatably connected to the first driving arm, and an excavating head rotatably connected to the second driving arm; wherein, a first oil cylinder for driving the first driving arm to rotate is connected between the main frame and the first driving arm, a second oil cylinder for driving the second driving arm to rotate is connected between the first driving arm and the second driving arm, and a third oil cylinder for driving the excavating head to rotate is connected between the second driving arm and the excavating head.

[0015] In a preferred embodiment of the present invention, a hydraulic pump and a hydraulic oil tank are connected to the main frame, and the hydraulic oil tank is connected to the first oil cylinder, the second oil cylinder, and the third oil cylinder respectively through the hydraulic pump.

[0016] In a preferred embodiment of the present invention, the track base is arranged at the shaft opening of the shaft, and the outer ring shaft boring machine further comprises a tooling frame located outside the track base, and an excavating head can be placed on the tooling frame.

[0017] In a preferred embodiment of the present invention, the outer ring shaft boring machine further comprises a slag discharge mechanism, which comprises a crawler crane and an electro-hydraulic grab connected to the crawler crane, and the electro-hydraulic grab can extend into the shaft.

[0018] Compared with the prior art, the outer ring type shaft boring machine of the present invention has the following beneficial effects:

[0019] 1. The main engine of the outer ring shaft boring machine is fully utilized in conjunction with the track base for excavation operations, which greatly improves the adaptability of the cross-sectional shape of the outer ring shaft boring machine and can be used for excavation operations on circular, rectangular, elliptical and other excavation sections.

[0020] 2. According to different geological formations, excavation operations are carried out by replacing the excavation head at the front end of the outer ring shaft boring machine, which greatly improves the applicability of the equipment.

[0021] 3. The main engine of the outer ring shaft boring machine is equipped with an electro-hydraulic grab for slag removal, and the entire excavation operation can be automated and intelligent, which is safe and efficient.

[0022] 4. The cost of the outer ring shaft boring machine is low, which can effectively reduce the construction and installation costs of engineering projects. Compared with traditional manually operated excavators, it is safer, more stable and efficient, occupies a smaller area, and can also improve the construction environment of workers, which is more in line with the needs of urban construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the outer ring type shaft boring machine of the present invention;

[0025] Figure 2 for Figure 1 A partial enlarged schematic diagram of part A is shown;

[0026] Figure 3 This is a structural diagram of the tunneling main machine of the present invention;

[0027] Figure 4 It is a partial schematic diagram of the main frame of the present invention;

[0028] Figure 5 This is a partial schematic diagram of the cooperation between the main frame and the walking beam of the present invention;

[0029] Figure 6 This is another structural schematic diagram of the tunneling main machine of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the tooling frame of the present invention.

[0031] Description of Figure Numbers:

[0032] 10. Track base; 11. Travel beam; 111. Upper travel beam; 112. Lower travel beam; 113. Upper travel surface; 114. Side travel surface; 115. Lower travel surface; 116. Inner travel surface; 117. Outer travel surface; 12. Drive beam; 121. Chain; 20. Boring machine; 21. Mainframe; 22. Drive mechanism; 221. Gear; 222. Drive motor; 223. Battery; 23. Travel mechanism; 231. Upper travel wheel; 232. Lower travel wheel; 233 , first outer auxiliary wheel; 234, second outer auxiliary wheel; 235, inner auxiliary wheel; 24, locking mechanism; 241, locking cylinder; 242, brake; 25, excavation mechanism; 251, first driving arm; 252, second driving arm; 253, excavating head; 254, first cylinder; 255, second cylinder; 256, third cylinder; 26, hydraulic pump; 27, hydraulic oil tank; 30, tooling frame; 40, slag discharge mechanism; 41, crawler crane; 42, electro-hydraulic grab; 50, control unit. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0034] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an element centered thereon. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] The present invention provides an outer ring type shaft boring machine, such as Figure 1 and Figure 2 As shown, the outer ring type shaft boring machine includes:

[0037] The track base 10 is fixed to the inner wall of the shaft along the circumference of the shaft, and a walking beam 11 and a driving beam 12 are provided on the track base 10;

[0038] At least one tunneling machine 20 is movably arranged on the track base 10. The tunneling machine 20 has a main frame 21. The main frame 21 is provided with a driving mechanism 22 and a walking mechanism 23. The driving mechanism 22 can cooperate with the driving beam 12. When the driving mechanism 22 cooperates with the driving beam 12, the walking mechanism 23 can be movably arranged on the walking beam 11.

[0039] The main boring machine 20 in the present invention is mounted on the walking beam 11, and moves along the circumference of the track base 10 and performs excavation operations under the action of the driving mechanism 22 and the driving beam 12, which greatly improves the adaptability of the excavation section shape of the outer ring shaft boring machine and can perform excavation operations on circular, rectangular, elliptical and other excavation sections.

[0040] Specifically, such as Figure 1 and Figure 2As shown, the track base 10 is an annular structure located at the entrance of the shaft to be excavated. In this embodiment, the track base 10 is constructed of reinforced concrete. A running beam 11, a ring-shaped steel frame structure, is fixedly attached to the inner wall of the track base 10. Also fixedly attached to the inner wall of the track base 10 is a drive beam 12, which mates with a drive mechanism 22 on a tunneling machine 20. The drive beam 12 is a chain 121 arranged along the circumference of the shaft. The chain 121 is located above the running beam 11, and the two are arranged vertically parallel. A tunneling machine 20 is movably mounted on the inner wall of the track base 10. Of course, in other embodiments of the present invention, the number of tunneling machines 20 may be multiple, and this is not limited here. The tunneling machine 20 includes a mainframe 21 for mounting various structures. The mainframe 21 is a square frame structure. A running mechanism 23 and a drive mechanism 22 are connected to one end of the mainframe 21, which is adjacent to the inner side of the track base 10. The traveling mechanism 23 is connected in a rolling manner to the traveling beam 11 on the track base 10 . At the same time, the coordinated connection between the traveling mechanism 23 and the traveling beam 11 can fix the tunneling machine 20 on the track base 10 to prevent it from falling from the track base 10 . The driving mechanism 22 includes a gear 221 located above the main frame 21, and the gear 221 is driven and connected to the chain 121. The driving mechanism 22 also includes a driving motor 222 connected above the main frame 21. A battery 223 is installed next to the driving motor 222 for powering the driving motor 222; the rotating shaft of the driving motor 222 is connected to the gear 221 for driving the gear 221 to rotate, the gear 221 is fixed on the movable excavation host 20, and the chain 121 is fixed on the immovable track base 10, so when the driving motor 222 drives the gear 221 to rotate, the rotating gear 221 will move along the annular walking beam 11 under the action of the chain 121; in other embodiments of the present invention, the driving mechanism 22 can be in other forms, such as some common rotary drive methods such as gear racks.

[0041] In a feasible embodiment of the present invention, Figure 2 and Figure 3 As shown, the walking beam 11 includes an upper walking beam 111 and a lower walking beam 112 arranged in the vertical direction of the track base 10, and the walking mechanism 23 includes an upper walking wheel 231 located at the upper end of the main frame 21 and a lower walking wheel 232 located at the lower end of the main frame 21. The upper walking wheel 231 rolls with the upper walking beam 111, and the lower walking wheel 232 rolls with the lower walking beam 112.

[0042] The walking beam 11 in the present invention is divided into two parts, an upper part and an lower part, which are respectively connected in a rolling manner to the upper walking wheel 231 and the lower walking wheel 232. The design of the upper and lower double walking beams ensures the force requirements of the tunneling host 20 in the vertical direction, prevents the tunneling host 20 from being subjected to unbalanced force due to single-beam support, and makes the tunneling host 20 more firmly fixed on the circular track.

[0043] Specifically, the walking beam 11 includes an upper walking beam 111 and a lower walking beam 112 spaced apart in the vertical direction. The tunneling machine 20 is directly mounted on the walking beam 11 through the upper walking wheel 231 and the lower walking wheel 232. The contact rolling planes of the upper walking wheel 231 and the lower walking wheel 232 with the upper walking beam 111 and the lower walking beam 112 are parallel to the horizontal plane, and the rotation axes of the upper walking wheel 231 and the lower walking wheel 232 are parallel to the horizontal plane.

[0044] In a feasible embodiment of the present invention, Figure 5 As shown, the upper walking beam 111 has an upper walking surface 113 and a side walking surface 114 perpendicular to the upper walking surface 113, and the upper end of the main frame 21 is connected to the first outer auxiliary wheel 233, the upper walking wheel 231 rolls with the upper walking surface 113, and the first outer auxiliary wheel 233 rolls with the side walking surface 114.

[0045] The first outer auxiliary wheel 233 cooperates with the upper traveling wheel 231 to limit the excavation main machine 20 to prevent the excavation main machine 20 from tilting, thereby ensuring that the excavation main machine 20 can move along the traveling beam 11 .

[0046] Specifically, such as Figure 4 and Figure 5 As shown, the upper walking surface 113 that cooperates with the upper walking beam 111 and the upper walking wheel 231 is a ring surface parallel to the horizontal plane, and the side walking surface 114 that cooperates with the first outer auxiliary wheel 233 is a cylindrical surface located on the outer ring side of the upper walking surface 113 and arranged in the vertical direction. The upper walking surface 113 and the side walking surface 114 are connected and perpendicular to each other. The first outer auxiliary wheel 233 is fixedly mounted on the upper end of the main frame 21 and is adjacent to the installation position of the upper walking wheel 231. The axis of the first outer auxiliary wheel 233 is arranged in the vertical direction.

[0047] In a feasible embodiment of the present invention, Figure 5 As shown, the lower walking beam 112 has a lower walking surface 115 and an outer walking surface 117 and an inner walking surface 116 perpendicular to the lower walking surface 115. The lower end of the main frame 21 is connected to a second outer auxiliary wheel 234 and an inner auxiliary wheel 235 that cooperate with the lower walking wheel 232. The lower walking wheel 232 rolls with the lower walking surface 115, the second outer auxiliary wheel 234 rolls with the outer walking surface 117, and the inner auxiliary wheel 235 rolls with the inner walking surface 116.

[0048] With the cooperation of the second outer auxiliary wheel 234 and the inner auxiliary wheel 235 , the lower traveling wheel 232 further limits the boring machine 20 to prevent the boring machine 20 from tilting, thereby ensuring that the boring machine 20 can travel along the traveling beam 11 .

[0049] Specifically, such as Figure 4 and Figure 5 As shown, the lower walking surface 115 that cooperates with the lower walking beam 112 and the lower walking wheel 232 is a ring surface parallel to the horizontal plane, and the lower walking surface 115 is located directly below the upper walking surface 113; the outer walking surface 117 that cooperates with the second outer auxiliary wheel 234 is a cylindrical surface located on the outer ring side of the lower walking surface 115 and arranged in the vertical direction, and the inner walking surface 116 that cooperates with the inner auxiliary wheel 235 is a cylindrical surface located on the outer ring side of the lower walking surface 115 and arranged in the vertical direction. The lower walking surface 115 is perpendicular to the outer walking surface 117 and the inner walking surface 116, the inner walking surface 116 is parallel to the outer walking surface 117, and the inner walking surface 116 is located on the inner side of the outer walking surface 117. The second outer auxiliary wheel 234 and the inner auxiliary wheel 235 are installed at the lower part of the main frame 21 and adjacent to the installation position of the lower travel wheel 232. The axes of the second outer auxiliary wheel 234 and the inner auxiliary wheel 235 are both arranged along the vertical direction.

[0050] In a feasible embodiment of the present invention, Figure 6 As shown, the tunneling machine 20 also includes a locking mechanism 24, which is arranged on at least one side of the main frame 21. The locking mechanism 24 includes a locking cylinder 241 and a brake 242 connected to each other. The brake 242 can be locked with or separated from the walking beam 11.

[0051] The brake 242 can be locked and positioned with the walking beam 11 under the action of the base machine cylinder, thereby fixing the excavation host 20 at a certain position on the walking beam 11, and then the excavation host 20 can perform excavation operations at this position.

[0052] Specifically, such as Figure 2 and Figure 6 As shown, in this embodiment, locking mechanisms 24 are installed on both sides of the main frame 21, the locking cylinder 241 is vertical in the vertical direction, and the brake 242 connected to the locking cylinder 241 is set at the inner edge of the lower walking beam 112, and can be locked with the lower walking beam 112 under the action of the locking cylinder 241.

[0053] In a feasible embodiment of the present invention, Figure 3As shown, an excavation mechanism 25 is connected to the main frame 21, and the excavation mechanism 25 includes a first driving arm 251 rotatably connected to the main frame 21, a second driving arm 252 rotatably connected to the first driving arm 251, and an excavation head 253 rotatably connected to the second driving arm 252; wherein, a first oil cylinder 254 for driving the first driving arm 251 to rotate is connected between the main frame 21 and the first driving arm 251, a second oil cylinder 255 for driving the second driving arm 252 to rotate is connected between the first driving arm 251 and the second driving arm 252, and a third oil cylinder 256 for driving the excavation head 253 to rotate is connected between the second driving arm 252 and the excavation head 253.

[0054] Furthermore, a hydraulic pump 26 and a hydraulic oil tank 27 are provided in the main frame 21 , and the hydraulic oil tank 27 is connected to the first oil cylinder 254 , the second oil cylinder 255 , and the third oil cylinder 256 respectively through the hydraulic pump 26 .

[0055] The first driving arm 251 , the second driving arm 252 and the excavating head 253 , which are in communication with the hydraulic oil tank 27 and connected in sequence, can realize excavation at the location of the tunneling main machine 20 under the drive of the hydraulic pump 26 .

[0056] Specifically, such as Figure 3 and Figure 6 As shown, an excavation mechanism 25 is connected to the end face of the main frame 21 away from the walking beam 11. The excavation mechanism 25 has a structure similar to that of a common excavator excavator arm. A first oil cylinder 254, a second oil cylinder 255, and a third oil cylinder 256 are respectively connected between the main frame 21, the first driving arm 251, the second driving arm 252, and the excavation head 253, which are connected in sequence. A hydraulic pump 26 and a hydraulic oil tank 27 are fixedly installed inside the main frame 21. The hydraulic pump 26 is used to drive the first driving arm 251, the second driving arm 252 and the excavation head 253 to rotate. The excavation head 253 can be a bucket, a bucket with a breaker hammer, a milling head or a breaker hammer, etc., wherein the bucket and the breaker hammer can be operated separately or in combination. In this embodiment, the excavation head 253 is a bucket with a breaker hammer. According to different geological formations, excavation operations can be performed by replacing the excavation head 253 at the front end of the excavation mechanism 25, which greatly improves the applicability of the equipment. For ordinary soft soil layers, ordinary buckets can be used for construction; for layers with large-sized scattered rocks, buckets with breaker hammers can be installed for construction; for gravel layers, milling heads can be installed for construction.

[0057] In a feasible embodiment of the present invention, Figure 1 and Figure 7As shown, the track base 10 is arranged at the shaft mouth of the shaft, and the outer ring shaft boring machine also includes a tooling frame 30 located outside the track base 10, on which an excavation head 253 can be placed. The tooling frame 30 is provided with a replaceable excavation head 253, which can facilitate the replacement of the excavation head 253.

[0058] In a feasible embodiment of the present invention, Figure 1 As shown, the outer ring shaft boring machine further includes a slag discharge mechanism 40, which includes a crawler crane 41 and an electro-hydraulic grab 42 connected to the crawler crane 41, and the electro-hydraulic grab 42 can extend into the shaft.

[0059] The slag discharge is achieved by relying on a high-power electro-hydraulic grab 42 hoisted by a crawler crane 41, and the construction work is carried out in conjunction with the cantilever tunneling host 20. According to the actual situation of the project, especially the size of the space, the number of cantilever tunneling hosts 20 and slag discharge mechanisms 40 can be increased, which greatly improves work efficiency and shortens construction period.

[0060] In a feasible embodiment of the present invention, a control unit 50 is installed on the main frame 21 of the tunneling host 20. The control unit 50 can control and lock the movement of the tunneling host 20 on the walking beam 11, and at the same time can control the excavation mechanism 25 on the tunneling host 20 to realize intelligent excavation construction operations.

[0061] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An outer ring shaft boring machine, characterized in that: include: A track base is fixed on the inner wall of the shaft along the circumference of the shaft, and a walking beam and a driving beam are provided on the track base; At least one excavation main machine is movably arranged on the track base, the excavation main machine has a main frame, and the main frame is provided with a driving mechanism and a traveling mechanism, the driving mechanism can be driven in cooperation with the driving beam, and the traveling mechanism can be movably arranged on the traveling beam when the driving mechanism is in driving cooperation with the driving beam; The driving beam is a chain arranged along the circumference of the shaft; the driving mechanism includes a gear located above the main frame, the gear is drivingly connected to the chain, and the driving mechanism has a driving motor, the rotating shaft of the driving motor is connected to the gear; The walking beam includes an upper walking beam and a lower walking beam arranged in the vertical direction of the track base, and the walking mechanism includes an upper walking wheel located at the upper end of the main frame and a lower walking wheel located at the lower end of the main frame, the upper walking wheel rollingly cooperates with the upper walking beam, and the lower walking wheel rollingly cooperates with the lower walking beam; The tunneling mainframe further includes a locking mechanism, which is arranged on at least one side of the mainframe. The locking mechanism includes a locking cylinder and a brake that are connected to each other, and the brake can be locked with or separated from the walking beam.

2. The outer ring type shaft boring machine according to claim 1, characterized in that: The upper walking beam has an upper walking surface and a side walking surface perpendicular to the upper walking surface. The upper end of the main frame is connected to a first outer auxiliary wheel. The upper walking wheel rolls with the upper walking surface, and the first outer auxiliary wheel rolls with the side walking surface.

3. The outer ring type shaft boring machine according to claim 2, characterized in that: The lower walking beam has a lower walking surface and an outer walking surface and an inner walking surface perpendicular to the lower walking surface. The lower end of the main frame is connected to a second outer auxiliary wheel and an inner auxiliary wheel. The lower walking wheel rolls with the lower walking surface, the second outer auxiliary wheel rolls with the outer walking surface, and the inner auxiliary wheel rolls with the inner walking surface.

4. The outer ring type shaft boring machine according to claim 1, characterized in that: An excavation mechanism is connected to the main frame, and the excavation mechanism includes a first driving arm rotatably connected to the main frame, a second driving arm rotatably connected to the first driving arm, and an excavating head rotatably connected to the second driving arm; wherein, a first oil cylinder for driving the first driving arm to rotate is connected between the main frame and the first driving arm, a second oil cylinder for driving the second driving arm to rotate is connected between the first driving arm and the second driving arm, and a third oil cylinder for driving the excavating head to rotate is connected between the second driving arm and the excavating head.

5. The outer ring type shaft boring machine according to claim 4, characterized in that: A hydraulic pump and a hydraulic oil tank are connected to the main frame. The hydraulic oil tank is communicated with the first oil cylinder, the second oil cylinder, and the third oil cylinder respectively through the hydraulic pump.

6. The outer ring type shaft boring machine according to claim 1, characterized in that: The track base is arranged at the wellhead of the vertical shaft. The outer ring type vertical shaft boring machine further comprises a tooling frame located outside the track base, and an excavating head can be placed on the tooling frame.

7. The outer ring type shaft boring machine according to claim 1, characterized in that: The outer ring type shaft boring machine further comprises a slag discharge mechanism, which comprises a crawler crane and an electro-hydraulic grab connected to the crawler crane, and the electro-hydraulic grab can extend into the shaft.

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