Push type slope coal mining machine and mining method

Abstract

The invention discloses a push type slope coal mining machine and a mining method. The slope coal mining machine comprises a base body platform; the moving system is used for driving the base body platform to ascend, descend, move or steer; the anchoring system is used for fixing the base body platform moving to the target position; the digging and mining system is used for crushing and stripping materials, collecting the materials and conveying the materials to the conveying system; the conveying system comprises one or a plurality of conveying units which are sequentially connected in series step by step, one end of each conveying unit is connected with the digging and mining system, the other end of each conveying unit is detachably connected with the propelling system, and the conveying units are used for continuously conveying materials mined by the digging and mining system to the base body platform through the conveying system; the propelling system is used for pushing and pulling the connected conveying system to move back and forth so as to drive the digging system to perform footage mining or withdrawing; and the disassembling and assembling system is arranged on the side of the base body platform and can disassemble and move the conveying unit located on the base body platform out of the conveying system or move the conveying unit to the base body platform to be connected into the conveying system.

Description

Technical Field

[0001] The invention belongs to the technical field of side wall coal mining in open-pit mines, and in particular relates to a push-type side wall coal mining machine and a mining method. Background Art

[0002] Open-pit mining is widely used as an important mining method. A large number of open-pit side coal, hillside outcrop coal and other resources have been abandoned due to mining technology, economic rationality, environmental damage risks and other restrictions. In particular, the residual and abandoned coal resources in old mining areas have been shelved due to technical limitations. Although there are currently attempts to mine with shaft workshop pillar mining technology, it cannot be actually promoted and applied due to hidden dangers such as low recovery efficiency, high safety risks, and poor system reliability.

[0003] The applicant has found through research that the current mining of the sidewall has the following problems: 1. At present, there is no mature sidewall mining technology in domestic open-pit mines, which is far behind that in foreign countries. A large amount of exposed coal has been abandoned to prevent environmental damage.

[0004] 2. The mining technology of the sidewall is backward, and there is a lack of specialized and integrated mining equipment. Although some adaptive modifications have been made to the pillar mining method of the well workshop, the resource recovery rate is low, the adaptability to working conditions is poor, the equipment system is scattered, and the technology maturity is low. It is still in the trial and exploration stage. 3. Difficulty in sidewall mining. In the process of open-pit mining, the sidewall coal or hillside outcrop coal resources are often thinner and the terrain is inclined. Without efficient mining technology or equipment, it is difficult to adapt to the on-site conditions, or the resource recovery effect cannot achieve the expected effect.

[0005] 4. The sidewall plays a role in stabilizing the open-pit mining area. Once the risks of sidewall landslide, surface vegetation destruction, fire and spontaneous combustion occur, they will cause major safety accidents. The construction safety must be ensured in sidewall mining.

[0006] 5. There is a large amount of mountain vegetation on the surface of open-pit coal seams. Only environmentally friendly and intelligent mining processes and technologies can protect the surface ecological environment and meet the needs of green mine construction. Summary of the invention

[0007] Purpose: In view of at least one of the above technical problems, the present invention provides a push-type side coal mining machine and a mining method.

[0008] Technical solution: To solve the above technical problems, the technical solution adopted by the present invention is: According to a first aspect of the present invention, there is provided a push-type sidewall coal mining machine, comprising a base platform, a moving system, an anchoring system, a mining system, a propulsion system, a conveying system, a rear conveyor and a disassembly and assembly system; The moving system is installed around the base platform and is used to drive the base platform to lift, move or turn; An anchoring system, used to fix the base platform moved to the target position; Excavation system, used for material crushing and stripping, collecting materials and transporting them to the connected conveying system; A conveying system, comprising one or a plurality of conveying units connected in series in sequence, one end of which is connected to the excavation system and the other end of which is detachably connected to the propulsion system, and is used to continuously convey the materials mined by the excavation system to the conveying unit on the base platform through the conveying system; The propulsion system is arranged on the base platform, and is used to slide forward to push the connected conveying system forward to drive the excavation system to advance and mine, or to pull the connected conveying system backward to drive the excavation system to withdraw; A rear conveyor, which is arranged at the rear side of the base platform and extends to the base platform, and is used to continue conveying the materials coming out of the conveying unit on the base platform to the rear side of the base platform; The disassembly and assembly system is arranged on the side of the base platform, and can remove the conveying unit located on the base platform from the conveying system, or move the conveying unit onto the base platform and connect it to the conveying system.

[0009] According to a second aspect of the present invention, a sidewall mining method is provided, using the push-type sidewall coal mining machine, the method comprising: Transfer: The side coal mining machine is located on the outer platform of the side working face as a whole, and the whole machine moves or turns to a position perpendicular to the mining system and the working face; Anchoring: The mobile system drives the whole machine down to the bottom of the base platform to contact the bottom surface, and the base platform is fixed relatively to the ground through the anchoring system; Mining: A plurality of the conveying units are connected in series at the rear end of the mining system to form a conveying system. The end of the conveying system is connected to the propulsion system. The propulsion system pushes the conveying system and the mining system at the front end to move as a whole. After the propulsion system moves to the front end limit position, the conveying system is disconnected and moves independently back to the rear end limit position. The grabbing mechanism grabs the conveying unit on the side and moves it to the middle of the base platform. The front and rear of the conveying unit are respectively connected to the rear end of the conveying system and the front end of the propulsion system. The propulsion system repeatedly advances in sequence. The mining system goes deep into the side working face, and forms a mining hole after breaking and peeling off the working face materials during the advancement process. The mining system can collect the peeled materials and transport them to the conveying system. The conveying system continuously transports the materials from the connection end of the mining system to the conveying unit of the base platform. Withdrawal: The propulsion system pulls the rear end of the conveying system to the rear limit position, disconnects the front and rear of the conveying unit at the rear end of the conveying system from the front end of the conveying system and the propulsion system, and the disassembly system removes the conveying unit on the base platform from the conveying system to the side. The propulsion system repeatedly pushes and moves to the front limit position and then connects to the rear end of the conveying system, and repeatedly pulls out the units from the rear end of the conveying system in sequence.

[0010] Beneficial effects: The push-type side coal mining machine and mining method provided by the present invention have the following advantages: (1) The specialized sidewall mining equipment adopts fully mechanized construction, which solves the problem of resource mining equipment such as sidewall compression coal or hillside outcrop coal in open-pit mines or old mines. (2) The push-type sidewall mining method relies on integrated mechanical equipment for integrated operation, and does not need to imitate the column-type mining operation of the mine workshop, which solves the problem of scattered sidewall mining systems and the use of mine equipment for sidewall mining. (3) The construction is safe, and the stratum disturbance is small during the mining process. The operator only needs to operate on the sidewall platform or remote control platform to control the mining angle, speed and other parameters. It has methane alarm and ventilation measures, and can cooperate with the filling process to make the sidewall more stable. (4) The resource recovery rate is high, which improves the resource mining efficiency of the mining area. The continuous mining and continuous transportation system is adopted, and the mining does not require a large number of personnel and equipment. (5) The whole machine has the functions of walking, steering, lifting, etc., and can be modularly disassembled and assembled, making the on-site construction positioning more flexible and the working face transfer more convenient. (6) The ecological environment has little impact, and the mining process will not cause damage to the surface ecological vegetation. (7) It has good adaptability to working conditions and can be continuously adjusted according to the conditions of different coal seams to meet the mining requirements of different mining areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a side coal mining machine provided by the present invention; Figure 2 It is a schematic diagram of the main structure of the sidewall coal mining machine provided by an embodiment of the present invention; Figure 3 It is a schematic diagram of the main structure of the side coal mining machine provided by an embodiment of the present invention; Figure 4 is a partial cross-sectional structural schematic diagram of a conveying unit provided in an embodiment of the present invention; Figure 5 is a structural schematic diagram of a disassembly and assembly system provided by an embodiment of the present invention; Figure 6 is a working schematic diagram of the disassembly and assembly system provided by an embodiment of the present invention; In the figure: base platform 1, mobile system 2, propulsion system 3, conveying unit 4, excavation system 5, anchoring system 6, reel system 7, disassembly and assembly system 8, control box 9, cab 10, rear conveyor 11; crawler mechanism 21, slewing mechanism 22, lifting mechanism 23, propulsion frame 31, power station 32, drilling rig 61, latch 62, reel mechanism 71, reel rack 72; cutting mechanism 51, material receiving mechanism 52, transfer frame 53; propulsion box 41, double screw 42; grabbing mechanism 81, carrying frame 82. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0014] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only used to explain the relative positional relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0015] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0017] The study found that the existing open-pit sidewall coal mining equipment all use belt conveyors as the transportation structure for mining coal. This structure requires the main machine to be pulled at the front, and its operation and maintenance must be performed in the cave. In addition, the belt conveyor mechanism is large in size and inconvenient to walk. It is only suitable for mining coal in thicker coal seams, not for mining coal in thinner coal seams. As a result, the overall equipment has poor versatility, poor operation and maintenance, and poor safety, which is inconsistent with the needs of unmanned and less-manned coal mines.

[0018] In view of this, the present application provides a push-type sidewall coal mining machine, which changes the feeding of the front-end cutting mechanism from the front-end drive of the main engine in the tunnel to the rear-end propulsion structure of the multi-section propulsion arm cascade outside the tunnel. Since the propulsion arm is small in size, it can adapt to the mining of various coal seams and realize unmanned operation and maintenance in the tunnel. The present invention changes the feeding drive of the cutting mechanism from the traditional front-end main engine drive in the tunnel to the rear-end main engine drive outside the tunnel, integrates the propulsion function of the cutting mechanism with the tunnel transportation function of the fallen coal, and changes the traditional main engine feeding to the drilling tool feeding.

[0019] Example 1: Figures 1 to 6 As shown, a push-type sidewall coal mining machine includes a base platform 1, a moving system 2, an anchoring system 6, a mining system 5, a propulsion system 3, a conveying system, a rear conveyor 11 and a disassembly and assembly system 8; The moving system 2 is installed around the base platform 1 and is used to drive the base platform 1 to lift, move or turn; An anchoring system 6, used to fix the base platform 1 moved to the target position; The excavation system 5 is used for crushing and peeling materials, collecting materials and conveying them to the connected conveying system; A conveying system, comprising one or a plurality of conveying units 4 connected in series in sequence, one end of which is connected to the excavation system 5 and the other end of which is detachably connected to the propulsion system 3, and is used to continuously convey the materials mined by the excavation system 5 to the conveying units on the base platform 1 through the conveying system; The propulsion system 3 is arranged on the base platform 1, and is used to slide forward to push the connected conveying system forward to drive the excavation system 5 to advance and mine, or to pull the connected conveying system backward to drive the excavation system 5 to withdraw; The rear conveyor 11 is arranged at the rear side of the base platform 1 and extends onto the base platform 1, and is used to continue conveying the materials coming out of the conveying unit on the base platform 1 to the rear side of the base platform 1; The disassembly and assembly system 8 is arranged at the side of the base platform 1, and can remove the conveying unit located on the base platform 1 from the conveying system, or move the conveying unit onto the base platform 1 and connect it to the conveying system.

[0020] In some embodiments, Figure 1 As shown, two bearing structures are arranged on the base platform 1, namely a front bearing structure and a rear bearing structure.

[0021] On this basis, if Figure 1 As shown, the push-type side coal mining machine also includes: A control box 9 is arranged on the rear bearing structure, and an electric power system, a hydraulic control system, and a cooling system are arranged in the control box 9; The cab 10 is arranged above the control box 9 and is used to control the operation of the main engine.

[0022] It also includes a reel system 7, which is arranged on the front bearing structure of the base platform 1. The reel of the reel system 7 rotates to follow the movement of the conveying system to reel in and release the power drag chain wrapped around the reel. The power drag chain is arranged with oil pipelines and cables, which are connected to the excavation system 5 to provide power for the excavation system 5.

[0023] Furthermore, a ventilation system is also provided in the control box 9 , and ventilation pipelines can be arranged in the power drag chain of the reel system 7 to ventilate the inside of the mining cave.

[0024] Furthermore, the cab 10 can restrict various actions of the host and can communicate with a remote control terminal, which can be a mobile cab or a fixed cab.

[0025] In some embodiments, Figure 2 As shown, the reel system 7 comprises: a reel mechanism 71 and a reel frame 72; A reel frame 72, the bottom of which is rigidly connected to the front bearing structure, and the top of which is hinged to the reel mechanism 71, and the rotation axis of the reel mechanism 71 is perpendicular to the sliding direction of the propulsion system 3; The reel mechanism 71 has a power drag chain wound around the axis and can rotate along the rotation axis. The rotation follows the sliding of the propulsion system 3 and the linear speed of the outermost circle of rotation is the same as the push-pull speed of the propulsion system. The inner end of the power drag chain is connected to the reel mechanism 71, and the outer side passes through the power drag chain and is connected to the rear side of the mining system 5 through the conveying system.

[0026] In some embodiments, Figure 5 , Figure 6 As shown, the disassembly and assembly system 8 comprises: The carrier frame 82 is arranged at the side of the base platform 1 and is used to place the conveying unit. The spiral moving direction of the conveying unit is parallel to the sliding direction of the propulsion system. The grabbing mechanism 81 can grab the conveying unit and drive the conveying unit to move between the base platform and the carrier 82. In this embodiment, the grabbing mechanism 81 is provided with a grabbing mechanism for connecting with the bracket on the conveying unit. The grabbing mechanism 81 is hinged to the base platform 1 through a hinge shaft and can rotate along the hinge shaft, thereby driving the conveying unit to move between the base platform 1 and the carrier 82.

[0027] In some embodiments, Figure 1 , Figure 4 As shown, the conveying system includes one or more conveying units 4 connected in series, each conveying unit 4 includes: The propulsion box 41 has a receiving cavity in the middle for the material to pass through; The twin screws 42 are arranged in parallel in the accommodating cavity and rotate in opposite directions; The screw positioning connection mechanism rigidly inserts the adjacent twin screws to transmit torque and rotate together to form a conveying system. This allows materials to be transported over long distances in the conveying system.

[0028] In other embodiments, a belt transmission structure may also be used in the conveying unit 4, and a plurality of belt transmission structures may be connected through a positioning connection mechanism to form a conveying system for conveying materials over long distances.

[0029] In some embodiments, Figure 1 , Figure 3 As shown, the excavation system 5 includes: a cutting mechanism 51, a material receiving mechanism 52 and a transfer frame 53; The transfer frame 53 is a box-shaped structure, and a conveyor is arranged inside. The rear end can be connected to the conveying system. The conveyor conveys the material from the receiving mechanism 52 to the front end of the conveying system. The cutting mechanism 51 is hinged to the front end of the transfer frame 53 and can swing up and down. A rotating roller is arranged at the front end of the cutting mechanism 51. With the up and down swing, the material on the working surface can be broken and peeled off and fall into the receiving mechanism 52. The material receiving mechanism 52 is hinged to the front end of the transfer base frame 53 and can swing up and down. The materials peeled off by the cutting mechanism 51 are collected by the material receiving mechanism 52 to the front end of the conveyor inside the transfer base frame 53.

[0030] Furthermore, the cutting mechanism 51 is a horizontal axis drum cutting form of a continuous miner or a digging and anchoring machine. Furthermore, the material collecting mechanism 52 is a shovel mechanism, which collects materials by rotating the star wheel or swinging the rake claw.

[0031] In some embodiments, Figure 1 , Figure 2 As shown, the propulsion system 3 comprises: The propulsion base frame 31 is arranged in the base platform, and a push-pull structure is arranged on both sides to slide along the front-rear direction of the whole machine; The power station 32 is arranged at the front end of the propulsion base 31 and can be detachably rigidly connected to the conveying unit 4 located on the base platform, thereby driving the conveying system to slide back and forth, and at the same time is connected to the twin screws 42 of the conveying system to transmit torque and drive the twin screws 42 to rotate.

[0032] In some embodiments, Figure 1 , Figure 2 As shown, the mobile system 2 includes: a crawler mechanism 21, a lifting mechanism 23 and a rotating mechanism 22; the crawler mechanism 21 includes a plurality of crawler walking mechanisms, and the crawler walking mechanism is connected to the base platform through a lifting mechanism 23 and a rotating mechanism 22, which can drive the relative lifting and rotation between the crawler mechanism 21 and the base platform. Furthermore, in the present embodiment, the track mechanism 21 is a conventional four-wheel one-belt track walking mechanism capable of normal walking, and a sliding guide rod structure is provided above the track mechanism 21, including a fixed rod and an extending guide rod, wherein the fixed rod is relatively fixedly connected to the track mechanism 21, and the bottom of the extending guide rod is sleeved in the fixed rod, and can rotate relative to the fixed rod and slide up and down; a slewing mechanism 22 is nested in the extending guide rod above the track mechanism 21, and can drive the track mechanism 21 to rotate through a rotating power element, and the extending guide rod of the track mechanism 21 can slide in the slewing mechanism 22; a lifting mechanism 23 is connected between the base platform 1 and the extending guide rod of the track mechanism 21, and can drive the track mechanism 21 to telescope and slide up and down.

[0033] In some embodiments, Figure 1 , Figure 2 As shown, the anchoring system 6 comprises: The drilling machine 61 can be rotated to drill and lifted to drill, the drilling direction passes through the pin hole of the base platform and is perpendicular to the ground, and can be pushed out and slid to one side after drilling; The latch 62 can slide to the top of the hole drilled by the drill rig 61 and be lifted and lowered. The lifting direction passes through the base platform and is perpendicular to the ground and inserted into the hole drilled by the drill rig 61, so that the base platform and the ground are fixed by the latch.

[0034] Embodiment 2: A sidewall mining method, using the push-type sidewall mining machine described in Embodiment 1, the method comprising: Transfer: The side coal mining machine is located on the outer platform of the side working face as a whole, and the whole machine moves or turns to a position perpendicular to the mining system 5 and the working face; Anchoring: The mobile system 2 drives the whole machine to be lowered to the bottom of the base platform 1 to contact the bottom surface, and the base platform 1 is fixed relatively to the ground through the anchoring system 6; Mining: The rear end of the excavation system 5 is connected in series with a plurality of the conveying units 4 to form a conveying system, and the end of the conveying system is connected to the propulsion system 3. The propulsion system 3 pushes the conveying system and the front end of the excavation system 5 to move as a whole. After the propulsion system 3 moves to the front end limit position, the conveying system is disconnected and moves independently back to the rear end limit position. The grabbing mechanism 81 grabs the conveying unit 4 on the side and moves it to the middle of the base platform 1. The front and rear of the conveying unit 4 are respectively connected to the rear end of the conveying system and the front end of the propulsion system 3, and the propulsion system 3 is repeatedly advanced in sequence; the excavation system 5 goes deep into the side working face, and the working face materials are crushed and peeled off during the advancement process to form a mining cave. The excavation system 5 can collect the peeled materials and transport them to the conveying system, and the conveying system continuously transports the materials from the connection end of the excavation system 5 to the conveying unit of the base platform 1; Retraction: The propulsion system 3 pulls the rear end of the conveying system to the rear limit position, disconnects the front and rear of the conveying unit 4 at the rear end of the conveying system from the conveying system and the front end of the propulsion system 3, and the disassembly system 8 removes the conveying unit on the base platform 1 from the conveying system to the side. The propulsion system 3 repeatedly pushes and moves to the front end limit position and then connects to the rear end of the conveying system, and repeatedly pulls out the conveying units from the rear end of the conveying system in sequence.

[0035] Furthermore, at the same time, the reel of the reel system 7 rotates following the movement of the conveying system, and the power drag chain wound on the reel is connected to the rear side of the excavation system 5 through the conveying system to provide power for it. When withdrawing, the power drag chain of the reel system 7 is turned over and retracted to be wound on the reel.

[0036] Furthermore, the mining and withdrawal can be carried out intelligently and automatically according to the exploration conditions of the coalfield and coal seams, and the mining angle, speed and efficiency can be intelligently and automatically adjusted according to the formation conditions.

[0037] Furthermore, the sidewall mining method also includes: after retreating, a mining hole filling process can be added to supplement backfilling.

[0038] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above-mentioned technical features. The present invention has been disclosed above with preferred embodiments, but it is not used to limit the present invention. Any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention.

Claims

1. A push-type side coal mining machine, characterized in that: It includes base platform, mobile system, anchoring system, excavation system, propulsion system, conveying system, rear conveyor and disassembly and assembly system; The moving system is installed around the base platform and is used to drive the base platform to lift, move or turn; An anchoring system, used to fix the base platform moved to the target position; Excavation system, used for material crushing and stripping, collecting materials and transporting them to the connected conveying system; A conveying system, comprising one or a plurality of conveying units connected in series in sequence, one end of which is connected to the excavation system and the other end of which is detachably connected to the propulsion system, and is used to continuously convey the materials mined by the excavation system to the conveying unit on the base platform through the conveying system; The propulsion system is arranged on the base platform, and is used to slide forward to push the connected conveying system forward to drive the excavation system to advance and mine, or to pull the connected conveying system backward to drive the excavation system to withdraw; A rear conveyor, which is arranged at the rear side of the base platform and extends to the base platform, and is used to continue conveying the materials coming out of the conveying unit on the base platform to the rear side of the base platform; The disassembly and assembly system is arranged on the side of the base platform, and can remove the conveying unit located on the base platform from the conveying system, or move the conveying unit onto the base platform and connect it to the conveying system.

2. The push-type side coal mining machine according to claim 1, characterized in that: The base platform is provided with a bearing structure, a front bearing structure and a rear bearing structure.

3. The push-type side coal mining machine according to claim 2, characterized in that: Also includes: A centralized control box is arranged on the rear bearing structure, and an electrical power system, a hydraulic control system, and a cooling system are arranged in the centralized control box; The driving cab is arranged above the central control box.

4. The push-type side coal mining machine according to claim 2, characterized in that: It also includes a reel system, which is arranged on the supporting structure on the front side of the base platform. The reel of the reel system rotates to follow the movement of the conveying system to reel in and release the power drag chain wrapped around the reel. The power drag chain is arranged with oil pipelines and cables, which are connected to the excavation system to provide power for the excavation system.

5. The push-type side coal mining machine according to claim 4, characterized in that: The reel system comprises: a reel mechanism and a reel frame; A reel frame, the bottom of which is rigidly connected to the front bearing structure, the top of which is hinged to the reel mechanism, and the rotation axis of the reel mechanism is perpendicular to the sliding direction of the propulsion system; The reel mechanism has a power drag chain wound around the axis and can rotate along the rotating axis. The rotation follows the sliding of the propulsion system and the linear speed of the outermost circle of rotation is the same as the push-pull speed of the propulsion system. The inner end of the power drag chain is connected to the reel mechanism, and the outer side passes through the power drag chain and is connected to the rear side of the mining system through the conveying system.

6. The push-type side coal mining machine according to claim 1, characterized in that: The disassembly and assembly system comprises: A carrier frame is arranged on the side of the base platform and is used to place the conveying unit, wherein the spiral moving direction of the conveying unit is parallel to the sliding direction of the propulsion system; The grabbing and moving mechanism can grab the conveying unit and drive the conveying unit to move between the base platform and the supporting frame.

7. The push-type side coal mining machine according to claim 1, characterized in that: The conveying system comprises one or more conveying units connected in series, each conveying unit comprising: The propulsion box has a receiving cavity in the middle for materials to pass through; Twin screws are arranged in parallel in the accommodating cavity and rotate in opposite directions; The screw positioning connection mechanism rigidly inserts the adjacent twin screws into each other, transmits torque and rotates together to form a conveying system.

8. The push-type side coal mining machine according to claim 1, characterized in that: The excavation system comprises: a cutting mechanism, a material receiving mechanism and a transfer frame; The transfer frame is a box-shaped structure, and a conveyor is arranged inside. The rear end can be connected to the conveying system, and the conveyor transports the material from the receiving mechanism to the front end of the conveying system; A cutting mechanism is hinged to the front end of the transfer frame and can swing up and down. A rotating roller is arranged at the front end of the cutting mechanism, and the material on the working surface can be broken and peeled off and fall into the receiving mechanism as the roller swings up and down. The material receiving mechanism is hinged to the front end of the transfer base frame and can swing up and down. The materials peeled off by the cutting mechanism are collected by the material receiving mechanism to the front end of the conveyor inside the transfer base frame.

9. The push-type side coal mining machine according to claim 1, characterized in that: The propulsion system comprises: The propulsion base frame is arranged in the base platform, with push-pull structures arranged on both sides, and slides along the front and rear direction of the whole machine; The power station is arranged at the front end of the propulsion base frame and can be detachably rigidly connected to the conveying unit located on the base platform, thereby driving the conveying system to slide back and forth, and at the same time is connected to the twin-screw drive of the conveying system to transmit torque and drive the twin-screw to rotate.

10. The push-type side coal mining machine according to claim 1, characterized in that: The mobile system includes: a crawler mechanism, a lifting mechanism and a rotating mechanism; The crawler mechanism includes a plurality of crawler walking mechanisms, and the crawler walking mechanisms are connected to the base platform via a lifting mechanism and a rotating mechanism, so as to drive the relative lifting and rotating between the crawler mechanism and the base platform.

11. The push-type side coal mining machine according to claim 1, characterized in that: The anchoring system comprises: The drilling machine can rotate and lift to drill, the drilling direction passes through the pin hole of the base platform and is perpendicular to the ground, and after drilling, it can be pushed out and slid to one side; The latch can slide to the top of the drilling hole and be lifted and lowered. The lifting direction passes through the base platform and is perpendicular to the ground and inserted into the hole drilled by the drilling rig, so that the base platform and the ground are fixed by the latch.

12. A sidewall mining method, characterized in that: Using the push-type sidewall coal mining machine according to any one of claims 1 to 11, the method comprises: Transfer: The side coal mining machine is located on the outer platform of the side working face as a whole, and the whole machine moves or turns to a position perpendicular to the mining system and the working face; Anchoring: The mobile system drives the whole machine down to the bottom of the base platform to contact the bottom surface, and the base platform is fixed relatively to the ground through the anchoring system; Mining: A plurality of the conveying units are connected in series at the rear end of the mining system to form a conveying system. The end of the conveying system is connected to the propulsion system. The propulsion system pushes the conveying system and the mining system at the front end to move as a whole. After the propulsion system moves to the front end limit position, the conveying system is disconnected and moves independently back to the rear end limit position. The grabbing mechanism grabs the conveying unit on the side and moves it to the middle of the base platform. The front and rear of the conveying unit are respectively connected to the rear end of the conveying system and the front end of the propulsion system. The propulsion system repeatedly advances in sequence. The mining system goes deep into the side working face, and forms a mining hole after breaking and peeling off the working face materials during the advancement process. The mining system can collect the peeled materials and transport them to the conveying system. The conveying system continuously transports the materials from the connection end of the mining system to the conveying unit of the base platform. Withdrawal: The propulsion system pulls the rear end of the conveying system to the rear limit position, disconnects the front and rear of the conveying unit at the rear end of the conveying system from the front end of the conveying system and the propulsion system, and the disassembly system removes the conveying unit on the base platform from the conveying system to the side. The propulsion system repeatedly pushes and moves to the front limit position and then connects to the rear end of the conveying system, and repeatedly pulls out the conveying units from the rear end of the conveying system in sequence.

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