Vertical shaft fretsaw excavation construction device and method

Abstract

The invention discloses a vertical shaft fretsaw excavation method and a fretsaw machine thereof, and relates to the technical field of vertical shaft construction. The device is mainly composed of a fretsaw body, a telescopic derrick, a tower crane and a vertical shaft body. The fretsaw body comprises a case, a fixing piece, a tightener, a threading pipe, a telescopic drill bit, a threading drill rod, a bucket, a fretsaw chain, a foldable arm and a main drill bit. A special fretsaw cutting process is adopted, the method can adapt to various geologies such as soft rocks, hard rocks and soil layers, and the construction efficiency and quality are high; the equipment size can be flexibly designed, the construction requirements of vertical shafts with different calibers and depths are met, light weight and miniaturization can be achieved, and transportation under mountainous regions and severe conditions is facilitated; the construction process is simple, long-distance unmanned construction can be achieved, and the labor cost and the safety risk are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of shaft excavation construction, more particularly to a shaft wire saw excavation method. BACKGROUND

[0002] The excavation of geological bedrock is one of the most important processes in current open or underground construction, and the current main means is blasting or mechanical excavation. The blasting method cannot accurately control the blasting energy, has low energy utilization rate, and has high safety risks in the use of explosive devices, which does not meet the requirements of green construction, and is gradually being eliminated. The mechanical excavation method currently includes wire saw cutting and cutter cutting. The "wire saw method shaft excavation system" with application number CN202510066324.3 needs to first construct an auxiliary tunnel at the bottom of the shaft and set a pilot hole along the shaft profile, which has high requirements for the terrain conditions and complex preliminary preparation work, which does not meet the actual construction conditions of most shafts. The rock breaking methods in the schemes with application numbers CN202311236482.6 and CN202311416737.7 all use cutters or drill bits to cut chips, which has low construction efficiency when the rock layer is too hard to be cut by the cutters or drill bits. At the same time, the cutters and drill bits cut the rock into fine particles, which is convenient for slag removal but has large energy loss. In the real situation, the rock layer may be mixed with soft and hard rock, and the soil layer may be mixed with boulders, etc. Therefore, a shaft excavation method and machine that can cope with hard rock conditions and soft rock conditions need to be designed. At present, unmanned construction has begun to be explored and implemented in the fields of construction and mining, but there is no mature scheme for shaft construction. The plan for building a lunar scientific research station is steadily advancing, and the best living space on the moon known so far is below the lunar surface. Unmanned construction of a shaft on the lunar surface will also be a future trend. Therefore, it is worth exploring to design a shaft construction scheme that has a simple construction process, small and lightweight design of construction equipment and materials, and remote unmanned construction prospects. In combination with the previously filed patents with application numbers CN202510634764.4 and CN202521454940.8, and the name of "a anchor cable and shaft support structure" and "a shaft construction derrick", and this patent, the method, equipment and material aspects of shaft construction are basically complete.

[0003] In order to improve the adaptability to the excavated stratum, and to achieve a simple construction process, high energy utilization rate, and lightweight and small-sized design of the mechanical scheme as much as possible, based on the previous invention patents CN202310104767.8 and CN202410666476.2 filed by the applicant, the shaft construction scheme is further optimized and upgraded. SUMMARY

[0004] The application discloses a shaft wire saw excavation construction device and method, and aims to solve the technical problems of poor geological adaptability, inconvenient transportation, low construction efficiency and high safety risk of the existing shaft excavation equipment.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a shaft wire saw excavation method and a wire saw machine used in the method, which comprises a wire saw machine body 1, a telescopic derrick 2, a tower crane 3 and a shaft body 4. The wire saw machine body comprises a wire saw machine box 11, a wire saw fixing part 12, a wire saw tensioner 13, a wire saw machine threading pipe 14, a wire saw machine telescopic drill bit 15, a group of wire saw machine threadable drill rods 16, a wire saw machine bucket 17, a wire saw chain 18, two groups of wire saw machine foldable arms 19 and a wire saw main drill bit 20.

[0006] The wire saw tensioner 13 comprises a tensioner fixed column 131, a tensioner movable column 132, a tensioner controller 133, a tensioner main shaft roller 134, a tensioner auxiliary shaft roller 135, a tensioner motor and gear 136, a tensioner tooth groove 137, a tensioner sliding groove 138 and a tensioner sliding module 139. The tensioner controller 133 comprises a controller movable end 1331, a controller fixed end 1332 and a controller signal line 1333.

[0007] The wire saw tensioner 13 is installed in the wire saw machine box 11 and used for adjusting the tension degree of the wire saw chain 18. The wire saw tensioner 13 comprises the tensioner fixed column 131, the tensioner movable column 132, the tensioner controller 133, the tensioner main shaft roller 134, the tensioner auxiliary shaft roller 135, the tensioner motor and gear 136, the tensioner tooth groove 137, the tensioner sliding groove 138 and the tensioner sliding module 139. The tensioner fixed column 131 and the tensioner movable column 132 are each provided with multiple groups and arranged in two rows. The surfaces of the two columns are each provided with the tensioner auxiliary shaft roller 135, and the two sides are each provided with the tensioner main shaft roller 134. The wire saw chain 18 is sleeved between the tensioner main shaft roller 134 and the tensioner auxiliary shaft roller 135, so as to realize the support and transmission of the wire saw chain 18.

[0008] The bottom of the tensioner movable column 132 is fixedly connected with the tensioner sliding module 139. The tensioner sliding module 139 is driven by the tensioner motor and gear 136 and can move along the tensioner tooth groove 137 and the tensioner sliding groove 138, so as to adjust the spacing between the tensioner fixed column 131 and the tensioner movable column 132 and realize the tension adjustment of the wire saw chain 18. The opening and closing of the tensioner controller 133 is automatically controlled by the tension degree of the wire saw chain 18, so as to ensure that the wire saw chain 18 is always in a proper tension state and guarantee the cutting stability.

[0009] The threading pipe 14 of the wire saw machine is used for guiding and protecting the wire saw chain 18, and is arranged inside the wire saw machine box 11 and the wire saw machine threadable drill rod 16, including a threading pipe outer frame 141, a threading pipe roller 142, a main rod of an extension rod 143, a threading pipe universal joint 144, a bearing fixing piece 145, a roller bearing 146, and a secondary rod of the extension rod 147.

[0010] The threading pipe outer frame 141 is arranged in multiple groups, and each two groups of the threading pipe outer frame 141 are movably connected through multiple groups of the main rod of the extension rod 143 and the threading pipe universal joint 144, so that multiple groups of the threading pipe outer frame 141 are connected in series to form a complete threading pipe, and the length and angle of the threading pipe can be adjusted according to the construction requirement. The bearing fixing piece 145 is fixedly arranged on the inner wall of the threading pipe outer frame 141, one end of the bearing fixing piece 145 away from the threading pipe outer frame 141 is connected with the roller bearing 146, and the threading pipe roller 142 is movably arranged on the roller bearing 146. When the wire saw chain 18 passes through the threading pipe 14 of the wire saw machine, the threading pipe roller 142 provides a sliding fulcrum for the wire saw chain 18, reduces the abrasion of the wire saw chain 18, and ensures smooth transmission.

[0011] The wire saw machine telescopic drill bit 15 includes a drill bit end 151, a drill bit force transmission rod body 152, a saw chain force transmission rod body 153, and a drill bit shell 154. The drill bit end 151 includes a drill bit force receiving mortise 1512. The drill bit force transmission rod body 152 includes a drill bit force transmission rod telescopic tooth 1521, a drill bit force transmission rod force receiving tooth 1522, and a drill bit force transmission rod force transmission tenon 1523. The saw chain force transmission rod body 153 includes a saw chain force transmission tooth 1531, a saw chain force transmission rod telescopic tooth 1532, and a saw chain force transmission rod force receiving tooth 1533. The drill bit shell 154 includes a saw chain limiting wheel 1541, a saw chain hole 1542, a saw chain force transmission rod telescopic power device 1543, a saw chain force transmission rod telescopic force transmission tooth 1544, a saw chain force transmission rod power device 1545, a saw chain force transmission rod force transmission tooth 1546, a drill bit force transmission rod telescopic power device 1547, a drill bit force transmission rod telescopic force transmission tooth 1548, and a drill bit force transmission rod power device 1549. The drill bit force transmission rod power device 1549 includes a drill bit force transmission rod force transmission tooth 15491.

[0012] The wire saw machine telescopic drill bit 15 is used for cooperating with the wire saw chain 18 to complete rock block cutting, and includes the drill bit end 151, the drill bit force transmission rod body 152, the saw chain force transmission rod body 153, and the drill bit shell 154. Each part is provided with corresponding connection, transmission, and power structures.

[0013] The drill bit end 151 is connected with the drill bit force transmission rod tenon 1523 of the drill bit force transmission rod body 152 by mortise and tenon joint through the internally opened drill bit force bearing mortise 1512, the connection is firm and convenient to disassemble and assemble. The drill bit force transmission rod body 152 is externally sleeved with the saw chain force transmission rod body 153, and the surfaces of the two are provided with force transmission rod expansion teeth and force transmission rod stress teeth; the drill bit shell 154 is internally provided with a corresponding power device, the expansion and contraction adjustment of the force transmission rod and the rotation control of the drill bit are realized through the meshing transmission of the force transmission rod expansion teeth and the force transmission rod stress teeth, and the cutting demand of different thicknesses of rock blocks is adapted.

[0014] The wire saw machine bucket (17) is used for collecting the slag produced by cutting construction, and the slag is transported to the outside of the shaft body (4) by cooperating with the tower crane (3) to complete the slag cleaning operation; the wire saw chain (18) extends to the wire saw main drill bit (20) from the wire saw machine box (11) through the wire saw machine threading pipe (14) and is finally wound on the plurality of wire saw machine telescopic drill bits (15) to form a complete cutting transmission link; the wire saw machine foldable arm (19) can be flexibly adjusted in angle according to the construction space, and the operation range of the wire saw machine body (1) is further expanded.

[0015] The shaft body 4 comprises a shaft rock anchor beam 41, a shaft wall 42 and a shaft excavation surface 43.

[0016] Based on the above device structure, the core steps of the shaft wire saw excavation construction method of the present application are as follows: first, the telescopic derrick 2 is installed inside the shaft body 4 and fixed on the shaft rock anchor beam 41 through the telescopic structure at the bottom of both ends, and the height and levelness of the telescopic derrick 2 are adjusted; then the wire saw machine body 1 is connected with the sliding groove at the bottom of the telescopic derrick 2 through the wire saw fixing piece 12, and the position of the wire saw machine body 1 is adjusted so that it is aligned with the rock surface to be cut; The wire saw machine is started, the wire saw chain 18 is adjusted to a suitable tensioning degree by the wire saw tightener 13, the tensioning state of the wire saw chain 18 is monitored and maintained in real time by the wire saw tightener controller 133, the drill bit is controlled to rotate by the power device of the wire saw machine telescopic drill bit 15, and the wire saw chain 18 is driven to move, so that the rock blocks at the corresponding position of the wire saw machine body 1 are cut; During the cutting process, the wire saw machine body 1 can be moved by the telescopic derrick 2 and slid along the sliding groove, and can be moved to any position of the section of the shaft body 4, so that the rock cutting of the whole section of the shaft is realized; the slag produced by cutting falls into the wire saw machine bucket 17, and the slag in the wire saw machine bucket 17 is hoisted to the outside of the shaft body 4 by the tower crane 3 at regular intervals to complete the slag transportation. The cutting and transportation of the rock slag inside the shaft body 4 are completed, the required space is formed inside the shaft, then the shaft wall of the shaft body 4 is supported, the shaft wall is kept stable, and thus the whole shaft excavation and support operation is completed. Since the present application mainly studies the shaft excavation work, the remaining support and other corresponding work are not described here.

[0017] The cutting and slag transporting steps are repeated to gradually advance the shaft excavation operation until the shaft excavation of the preset depth and size is completed.

[0018] In a preferred embodiment, the telescopic derrick is arranged on the inner wall of the shaft, and the bottom of each end of the telescopic derrick is provided with a telescopic structure. Each set of telescopic structures is provided with a walking wheel at the end away from the telescopic derrick. The walking wheels can roll and walk on the rock anchor beam of the shaft. The bottom of the telescopic derrick is provided with a sliding groove, and the sliding groove is movably connected to the top end of the wire saw fixing member.

[0019] In a preferred embodiment, the wire tightener fixing column and the wire tightener moving column are arranged in two rows, and the surfaces of the wire tightener fixing column and the wire tightener moving column are provided with wire tightener auxiliary shaft rollers. The wire tightener fixing column is provided with wire tightener main shaft rollers on both sides, and the wire tightener main shaft rollers and the wire tightener auxiliary shaft rollers are sleeved with a wire saw chain.

[0020] In a preferred embodiment, the wire tightener controller includes a controller movable end, a controller fixed end, and a controller signal line. The controller movable end and the controller fixed end correspond to each other.

[0021] In a preferred embodiment, the wire saw machine threading pipe is arranged inside the wire saw machine box and the wire saw machine drill rod, and is used to guide the sliding direction of the wire saw chain of the wire saw machine. The outer frame of the threading pipe is provided with multiple groups, and multiple groups of main telescopic rods and auxiliary telescopic rods are arranged between every two groups of the outer frame of the threading pipe. The inner wall of the outer frame of the threading pipe is provided with multiple bearing fixing members. The end of the bearing fixing member away from the outer frame of the threading pipe is connected to a roller bearing, and the threading pipe roller is rotatably installed on the roller bearing.

[0022] In a preferred embodiment, the drill bit end is provided with a drill bit stress mortise, the drill bit stress mortise is connected to a drill bit force transmission rod force transmission tenon, the drill bit force transmission rod body is sleeved on the outer surface of the drill bit force transmission rod, and the drill bit force transmission rod body and the saw chain force transmission rod body are externally sleeved with a drill bit shell.

[0023] In a preferred embodiment, the drill bit force transmission rod body includes a drill bit force transmission rod telescopic tooth, a drill bit force transmission rod stress tooth, and a drill bit force transmission rod force transmission tenon. The drill bit force transmission rod force transmission tenon is connected to the drill bit stress mortise at the end of the drill bit. The saw chain force transmission rod body includes a saw chain force transmission tooth, a saw chain force transmission rod telescopic tooth, and a saw chain force transmission rod stress tooth.

[0024] In a preferred embodiment, the drill bit shell is internally provided with a saw chain limiting wheel, a saw chain hole, a saw chain power rod telescopic power device, a saw chain power rod telescopic power tooth, a saw chain power rod power device, a saw chain power rod power tooth, a drill bit power rod telescopic power device, a drill bit power rod telescopic power tooth, a drill bit power rod power device and a drill bit power rod power tooth. The equipment provided in the drill bit shell is connected with the corresponding positions of the drill bit power rod and the saw chain power rod.

[0025] The present application provides a vertical shaft wire saw excavation method and a wire saw machine used in the method, and has the following beneficial effects: 1. The wire saw excavation method uses a special wire saw machine and construction process, and can easily cope with various geological conditions such as soft rock, hard rock and soil layer, thereby improving construction efficiency and quality. 2. The mechanical structure size can be flexibly designed to meet the construction requirements of vertical shafts of different sizes and depths. 3. The construction process is simple, and remote unmanned construction can be realized to reduce labor costs and safety risks. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure arrangement of the present application.

[0027] Figure 2 It is a schematic diagram of the appearance structure of the wire saw machine of the present application.

[0028] Figure 3 It is a schematic diagram of the front view structure of the wire saw machine wire tightener of the present application.

[0029] Figure 4 It is a schematic diagram of the rear side view structure of the wire saw machine wire tightener of the present application.

[0030] Figure 5 It is a schematic diagram of the structure of the wire saw machine wire tightener controller of the present application.

[0031] Figure 6 It is a schematic diagram of the side view structure of the wire saw machine wire pipe of the present application.

[0032] Figure 7 It is a schematic diagram of the front view structure of the wire saw machine wire pipe of the present application.

[0033] Figure 8 It is a schematic diagram of the explosion view structure of the wire saw auxiliary drill bit of the present application.

[0034] Figure 9 It is a schematic diagram of the cross-sectional view structure of the wire saw auxiliary drill bit shell of the present application.

[0035] Figure 10 Flow chart of the shaft wire saw excavation construction method of the present application.

[0036] The figure marks are: 1, wire saw machine body; 11, wire saw machine box; 12, wire saw fixing part; 13, wire saw tightener; 131, tightener fixing column; 132, tightener moving column; 133, tightener controller; 1331, controller movable end; 1332, controller fixed end; 1333, controller signal line; 134, tightener main shaft roller; 135, tightener auxiliary shaft roller; 136, tightener motor and gear; 137, tightener tooth groove; 138, tightener sliding groove; 139, tightener sliding module; 14, wire saw machine threading pipe; 141, threading pipe outer framework; 142, threading pipe roller; 143, main rod of telescopic rod; 144, universal joint of threading pipe; 145, bearing fixing part; 146, roller bearing; 147, auxiliary rod of telescopic rod; 15, telescopic drill bit of wire saw machine; 151, end of drill bit; 1512, drill bit force eye; 152, drill bit force transmission rod body; 1521, drill bit force transmission rod telescopic tooth; 1522, drill bit force transmission rod force tooth; 1523, drill bit force transmission rod force tenon; 153, saw chain force transmission rod body; 1531, saw chain force transmission tooth; 1532, saw chain force transmission rod telescopic tooth; 1533, saw chain force transmission rod force tooth; 154, drill bit shell; 1541, saw chain limiting wheel; 1542, saw chain hole; 1543, saw chain force transmission rod telescopic power device; 1544, saw chain force transmission rod telescopic force transmission tooth; 1545, saw chain force transmission rod power device; 1546, saw chain force transmission rod force transmission tooth; 1547, drill bit force transmission rod telescopic power device; 1548, drill bit force transmission rod telescopic force transmission tooth; 1549, drill bit force transmission rod power device; 15491, drill bit force transmission rod force transmission tooth; 16, drill rod with threading of wire saw machine; 17, shovel of wire saw machine; 18, wire saw chain; 19, foldable arm of wire saw machine; 20, main drill bit of wire saw; 2, telescopic derrick; 3, tower crane; 4, shaft body; 41, shaft rock anchor beam; 42, shaft wall; 43, shaft excavation face. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0038] The application provides a vertical shaft wire saw excavation method and a wire saw machine used in the method, which comprises a wire saw machine body 1, a telescopic derrick 2, a tower crane 3 and a vertical shaft body 4, and is characterized in that the wire saw machine body 1 comprises a wire saw machine box 11, a wire saw fixing part 12, a wire saw tightener 13, a wire saw machine threading pipe 14, a wire saw machine telescopic drill bit 15, a group of wire saw machine drill rods 16, a wire saw machine bucket 17, a wire saw chain 18, two groups of wire saw machine foldable arms 19 and a wire saw main drill bit 20. The wire saw tightener 13 comprises a tightener fixing column 131, a tightener moving column 132, a tightener controller 133, a tightener main shaft roller 134, a tightener auxiliary shaft roller 135, a tightener motor and gear 136, a tightener tooth groove 137, a tightener sliding groove 138 and a tightener sliding module 139. The wire saw machine threading pipe 14 comprises a threading pipe outer framework 141, a threading pipe roller 142, a telescopic rod main rod 143, a threading pipe universal joint 144, a bearing fixing part 145, a roller bearing 146 and a telescopic rod auxiliary rod 147. The wire saw machine telescopic drill bit 15 comprises a drill bit end 151, a drill bit force transmission rod body 152, a saw chain force transmission rod body 153 and a drill bit shell 154. The vertical shaft body 4 comprises a vertical shaft rock anchor beam 41, a vertical shaft wall 42 and a vertical shaft excavation surface 43.

[0039] On the basis of the above, the above scheme is further refined in combination with the specific working mode as follows.

[0040] As shown in the figure, the telescopic derrick 2 is arranged on the inner wall of the vertical shaft, and the two ends of the telescopic derrick 2 are respectively provided with telescopic structures. Figures 1 to 9 Each telescopic structure is respectively provided with a traveling wheel at an end away from the telescopic derrick 2, the traveling wheel can roll and walk on the vertical shaft rock anchor beam 41, and the bottom of the telescopic derrick 2 is provided with a sliding groove, and the sliding groove is movably connected with the top end of the wire saw fixing part 12.

[0041] As shown in the figure, the telescopic derrick 2 is arranged on the inner wall of the vertical shaft, and the two ends of the telescopic derrick 2 are respectively provided with telescopic structures. Figures 1 to 9 Each telescopic structure is respectively provided with a traveling wheel at an end away from the telescopic derrick 2, the traveling wheel can roll and walk on the vertical shaft rock anchor beam 41, and the bottom of the telescopic derrick 2 is provided with a sliding groove, and the sliding groove is movably connected with the top end of the wire saw fixing part 12.

[0042] As shown in the figure, the telescopic derrick 2 is arranged on the inner wall of the vertical shaft, and the two ends of the telescopic derrick 2 are respectively provided with telescopic structures. Figures 1 to 9As shown in the figure; the tightener controller 133 includes the controller active end 1331, the controller fixed end 1332 and the controller signal line 1333, and the controller active end 1331 corresponds to the controller fixed end 1332. When the cutting surface of the cutting rock mass is continuously reduced, the wire saw chain 18 outside the wire saw machine box 11 will gradually become loose, at this time the controller active end 1331 of the tightener controller 133 moves downward due to gravity, and finally contacts with the controller fixed end 1332, so that the controller signal line 1333 forms a signal path, and then the tightener motor and gear 136 are started to perform the tight line movement.

[0043] As shown in the figure; Figures 1 to 9 The wire saw machine threading pipe 14 is arranged inside the wire saw machine box 11 and the wire saw machine drill rod 16, the threading pipe outer frame 141 is provided with a plurality of groups, and a plurality of groups of telescopic rod main rods 143 and threading pipe universal joints 144 are arranged between every two groups of threading pipe outer frames, the inner wall of the threading pipe outer frame is provided with a bearing fixing piece 145, and the end of the bearing fixing piece 145 away from the threading pipe outer frame is connected with a roller bearing 146.

[0044] As shown in the figure; Figures 1 to 9 The drill bit end 151 is provided with a connecting structure drill bit stress mortise 1512, the drill bit stress mortise is connected with a drill bit force transmission rod force transmission tenon 1523, the outer surface of the drill bit force transmission rod is provided with a saw chain force transmission rod body 153, and the drill bit force transmission rod body 152 and the saw chain force transmission rod body 153 are externally provided with a drill bit shell 154.

[0045] As shown in the figure; Figures 1 to 9 The drill bit force transmission rod body 152 includes a drill bit force transmission rod telescopic tooth 1521, a drill bit force transmission rod stress tooth 1522 and a drill bit force transmission rod force transmission tenon 1523, the drill bit force transmission rod force transmission tenon 1523 is connected with the connecting structure drill bit stress mortise 1512, and the saw chain force transmission rod includes a saw chain force transmission tooth 1531, a saw chain force transmission rod telescopic tooth 1532 and a saw chain force transmission rod stress tooth 1533.

[0046] As shown in the figure; Figures 1 to 9 The drill bit shell 154 is internally provided with a saw chain limiting wheel 1541, a saw chain hole 1542, a saw chain force transmission rod telescopic power device 1543, a saw chain force transmission rod telescopic force transmission tooth 1544, a saw chain force transmission rod power device 1545, a saw chain force transmission rod force transmission tooth 1546, a drill bit force transmission rod telescopic power device 1547, a drill bit force transmission rod telescopic force transmission tooth 1548, a drill bit force transmission rod power device 1549 and a drill bit force transmission rod force transmission tooth 15491, and the devices arranged inside the drill bit shell 154 are connected with the corresponding positions of the drill bit force transmission rod and the saw chain force transmission rod.

[0047] When cutting in a ring direction, the wire saw chain is sleeved on the saw chain transmission rod body, the saw chain transmission rod power device transmits power to the saw chain transmission rod body through the saw chain transmission rod power transmission teeth, and the saw chain transmission rod body drives the wire saw chain to cut rock through the saw chain transmission teeth. After the ring cutting is completed, the saw chain transmission rod telescopic power device and the drill bit transmission rod telescopic power device drive the saw chain transmission rod body and the drill bit transmission rod body to move backward through the saw chain transmission rod telescopic power transmission teeth and the drill bit transmission rod telescopic power transmission teeth, so that the wire saw chain falls off from the saw chain transmission rod body, and the back cutting of the rock mass is continued.

[0048] After the back cutting of the rock mass, the rock mass is completely separated from the mountain, and the rock mass or soil and rock completely separated from the mountain after cutting is loaded into the sling basket of the tower crane by the wire saw machine bucket, and is hoisted by the tower crane to transport the slag soil to a distance outside the well for disposal.

[0049] In summary, the working process of the present application is as follows: The tower crane 3, the telescopic derrick 2 and the wire saw machine are used for shaft excavation, and the wire saw machine mainly comprises a wire saw machine box 11, a group of wire saw machine wire penetrable drill rods 16 (main drill rods), at least two groups of wire saw machine foldable arms 19 (auxiliary drill rods), a wire saw machine bucket 17 and a wire saw chain 18. The wire saw machine is installed on the surface of the telescopic derrick 2 through wire saw machine fixing members and can slide along the telescopic derrick 2 below the telescopic derrick 2. Meanwhile, the telescopic derrick 2 is of telescopic structure, and walking wheels are installed at both ends of the telescopic derrick 2. The telescopic derrick 2 can move along the shaft periphery under the driving of the walking wheels. In this way, the wire saw machine reaches any position on the shaft plane through the movement of the telescopic derrick 2 and the sliding of the wire saw machine. The shaft plane is divided into several regions, and when the wire saw machine is composed of three drill rods, the small regions are triangular, and when the wire saw machine is composed of four drill rods, the small regions are quadrangular, and so on. The excavated shaft is polygonal on the plane, which is different from the current circular shaft or rectangular shaft. The present application can easily excavate shafts with different surrounding rocks and different depths. For the excavation of a deep shaft, the telescopic derrick 2 can be first retained on the ground outside the shaft, and the wire saw machine is lowered to the bottom of the shaft for excavation through the telescopic extension characteristics of the wire saw machine fixing members. For an ultra-deep shaft, the telescopic derrick 2 is lowered to the rock anchor beam inside the shaft together with the wire saw machine. The telescopic derrick 2 moves along the shaft wall on the rock anchor beam to drive the wire saw machine to excavate the shaft. The hard rock shaft rock anchor beam 41 can reserve the shaft wall surrounding rock during excavation, and then automatically form a rock anchor beam, which can be used after simple anchoring. The soft rock shaft can use reinforced concrete to make a rock anchor beam, which can be fixed on the shaft wall by anchor rods and anchor cables. The rock anchor beam used by the wire saw machine can be immediately removed or retained as a liaison platform for personnel to go up and down. The vertical shaft excavation scheme is portable, is not limited by the location of the vertical shaft, and can be used in high mountains and valleys or on other planets; meanwhile, the wire saw machine does not have requirements on the hardness of the rock stratum of the vertical shaft, and thus is not affected by hard rock or boulders during the excavation process; the excavation construction process is simple, and remote unmanned operation of the vertical shaft with shallow and hard surrounding rock is expected to be realized.

[0050] It should be noted that, in this document, the terms such as first and second are used merely to distinguish one entity or action from another, and do not necessarily require or imply that these entities or actions occur in any particular temporal or spatial order. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A wire saw machine for vertical shaft excavation, comprising a wire saw machine body (1), a telescopic shaft frame (2), a tower crane (3), and a vertical shaft body (4), characterized in that: The wire saw body (1) includes a wire saw fixing part (12) and a wire saw bucket (17). The tower crane (3) is located next to the shaft body (4), the telescopic derrick (2) is located inside the shaft body (4), and the wire saw machine body (1) is movably connected to the bottom of the telescopic derrick (2) through the wire saw fixing parts (12); Construction debris is transported to the outside of the shaft body (4) by the wire saw bucket (17) in conjunction with the tower crane (3).

2. The wire saw machine according to claim 1, characterized in that: The main body of the wire saw (1) also includes a wire saw housing (11), a wire saw tensioner (13), a wire saw conduit (14), a wire saw retractable drill bit (15), a wire saw drill rod (16), a wire saw chain (18), a wire saw foldable arm (19), and a wire saw main drill bit (20). The wire saw tensioner (13) is located inside the wire saw housing (11), the wire saw conduit (14) is located inside the wire saw housing (11) and the wire saw drill rod (16), and the wire saw chain (18) passes through the wire saw conduit (14) to cut the rock.

3. The wire saw machine according to claim 1, characterized in that: The telescopic derrick (2) has telescopic sliding structures at both ends and is supported by the vertical shaft rock anchor beam (41). The bottom of the telescopic derrick (2) is provided with a sliding groove, which is movably connected to the top of the wire saw fixing part (12).

4. The wire saw machine according to claim 2, characterized in that: The wire saw tensioner (13) includes a tensioner fixed post (131), a tensioner moving post (132), a tensioner controller (133), a tensioner main shaft roller (134), a tensioner secondary shaft roller (135), a tensioner motor and gear (136), a tensioner tooth groove (137), a tensioner slide groove (138), and a tensioner sliding module (139). The tensioner controller (133) controls the opening and closing of the wire saw chain (18) by the tension of the wire saw chain.

5. The wire saw machine according to claim 4, characterized in that: The wire tensioner fixed column (131) and the wire tensioner moving column (132) are provided with multiple sets and arranged in two rows. The surface is provided with a wire tensioner secondary shaft roller (135), and the two sides are provided with a wire tensioner main shaft roller (134). The wire saw chain (18) is sleeved between the main shaft and the secondary shaft roller. The bottom of the tensioner moving column (132) is fixedly connected to the tensioner sliding module (139) and moves along the tooth groove and slide under the drive of the motor and gear.

6. The wire saw machine according to claim 2, characterized in that: The wire saw conduit (14) includes a conduit outer frame (141), a conduit roller (142), a telescopic rod main rod (143), a conduit universal joint (144), a bearing fixing component (145), a roller bearing (146), and a telescopic rod auxiliary rod (147).

7. The wire saw machine according to claim 6, characterized in that: Multiple sets of conduit outer frame (141) are connected in series by telescopic rod main rod (143) and conduit universal joint (144) to form an integral conduit; The inner wall of the outer skeleton (141) of the wire saw is connected to the roller bearing (146) and the wire saw roller (142) through the bearing fastener (145), providing sliding support for the wire saw chain (18).

8. The wire saw machine according to claim 2, characterized in that: The retractable drill bit (15) of the wire saw includes a drill bit end (151), a drill bit transmission rod body (152), a saw chain transmission rod body (153), and a drill bit housing (154). The drill bit end, the force transmission rod body, the saw chain force transmission rod body, and the drill bit housing are all equipped with corresponding connection, transmission, and power structures.

9. The wire saw machine according to claim 8, characterized in that: The drill bit end (151) is mortised and tenoned with the drill bit force transmission rod body (152); The drill bit force transmission rod body (152) is fitted with a saw chain force transmission rod body (153). The drill bit housing (154) controls the extension and retraction of the force transmission rod and the rotation of the drill bit through the internal power unit and transmission gear structure.

10. The wire saw machine according to claim 2, characterized in that: The wire saw body (1) can be moved along the telescopic derrick (2) to any position on the vertical shaft cross section; The wire saw chain (18) extends from the wire saw housing (11) through the wire saw conduit (14) to the main wire saw drill bit (20) and is wound around multiple wire saw telescopic drill bits (15).

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