High-efficiency tunneling device and process for large-gradient top-coal fully-mechanized tunneling

Abstract

The present application relates to the technical field of coal mine construction, in particular to a high-efficiency tunneling device and process for large-gradient top-coal fully-mechanized excavation, the high-efficiency tunneling process for large-gradient top-coal fully-mechanized excavation comprises an installation process of an auxiliary device, a preparation process before operation, and an operation process of the auxiliary device, in the installation process of the auxiliary device, the auxiliary device is first disassembled into a main frame, a left walking mechanism, a right walking mechanism, and a bottom support assembly, then the disassembled main frame, left walking mechanism, right walking mechanism, and bottom support assembly are sequentially transported to the underground, and then sequentially installed, the bottom support assembly is composed of a mounting seat, a rotating rod, a ground grabbing plate, and a secondary hydraulic assembly, the lower end of the ground grabbing plate is driven by the secondary hydraulic assembly to be inserted into the soil layer, so that the ground grabbing plate forms a grabbing effect with the ground, and then the main frame is moved by the traction of the primary hydraulic assembly, thereby assisting the left walking mechanism and the right walking mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mine construction, in particular to a large-gradient top-coal supporting fully-mechanized excavation high-efficiency excavation device and process. BACKGROUND

[0002] The fully-mechanized excavation machine, a short form of comprehensive mechanized excavation machine, is a comprehensive mechanized equipment integrating excavation, rock loading, coal transportation, and even supporting and nailing;

[0003] In the prior art, the fully-mechanized excavation machine can realize autonomous movement when excavating at a gradient of 24° or less, but in some areas affected by the rising of the lower plate of a fault, the gradient of some sections is as high as 32°, and the climbing ability of the fully-mechanized excavation machine is greatly weakened in this gradient environment, thereby seriously affecting the overall excavation efficiency of the fully-mechanized excavation machine. To solve the above problems, the present application proposes a large-gradient top-coal supporting fully-mechanized excavation high-efficiency excavation device and process. SUMMARY

[0004] The present application aims to provide a large-gradient top-coal supporting fully-mechanized excavation high-efficiency excavation device and process to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a large-gradient top-coal supporting fully-mechanized excavation high-efficiency excavation process, which comprises:

[0006] Step one: installation process of the auxiliary device, in which the auxiliary device is first disassembled into a main frame, a left walking mechanism, a right walking mechanism, and a bottom support assembly, and then the disassembled main frame, left walking mechanism, right walking mechanism, and bottom support assembly are sequentially transported to the underground and then sequentially installed.

[0007] Step two: preparation process before operation, in which the components of the auxiliary device are first inspected, and then the auxiliary device is subjected to forward and backward trial operation.

[0008] Step three: operation process of the auxiliary device, in which the rear side of the excavation machine is first fixed to the front side of the auxiliary device, and then the auxiliary device assists the excavation machine in the forward and backward process.

[0009] Preferably, in the forward and backward trial operation process of the preparation process before operation, the situation of the surrounding roof is first checked to determine whether the roof will collapse or coal gangue will fall under the roof support state of the auxiliary device, and the operation personnel within a range of ten meters before and after the working area of the auxiliary device are evacuated, a warning is set ten meters away from the auxiliary device, and the handles of the auxiliary device are ensured to be in the middle position before the excavation machine is started.

[0010] Preferably, during the operation of the auxiliary device, when the slope is small, the auxiliary device is driven to move forward and backward by the left walking mechanism and the right walking mechanism.

[0011] Preferably, during the operation of the auxiliary device, when the slope is large, the auxiliary device is driven to move forward and backward by the left walking mechanism, the right walking mechanism and the bottom support assembly.

[0012] A large slope top coal fully mechanized excavation high efficiency excavation device, the large slope top coal fully mechanized excavation high efficiency excavation device assists driving the excavator in the large slope top coal fully mechanized excavation high efficiency excavation process: the excavating device comprises an excavator and an auxiliary device.

[0013] Preferably, the auxiliary device comprises a main frame, a left walking mechanism, a right walking mechanism and a bottom support assembly, a first hydraulic assembly is fixedly installed at the bottom of the main frame, the left walking mechanism and the right walking mechanism are respectively installed on the left and right sides of the main frame, and the left walking mechanism and the right walking mechanism are both driven by a driving structure, and the bottom support assembly is fixedly connected with the telescopic rod of the first hydraulic assembly.

[0014] Preferably, the bottom support assembly is composed of a mounting seat, a rotating rod, a ground grabbing plate and a second hydraulic assembly, the rotating rod and the ground grabbing plate are weldedly connected, the rotating rod is rotatably installed on the mounting seat through a first rotating shaft, the cylinder end of the second hydraulic assembly is fixedly connected with a first rotating seat, the telescopic rod end of the second hydraulic assembly is fixedly connected with a second rotating seat, the first rotating seat is rotatably connected with the mounting seat through a second rotating shaft, and the second rotating seat is rotatably installed on the upper side of the ground grabbing plate through a third rotating shaft.

[0015] Preferably, when the second hydraulic assembly is in the process state, the ground grabbing plate is in the vertical state, and when the auxiliary device is in the preparation stage of moving forward and backward, the telescopic rod of the first hydraulic assembly is in the half-process state.

[0016] Preferably, the lower side of the ground grabbing plate is provided with first ground grabbing teeth and second ground grabbing teeth, the first ground grabbing teeth and the second ground grabbing teeth are integrally formed with the ground grabbing plate, and the first ground grabbing teeth and the second ground grabbing teeth are arranged in a herringbone shape.

[0017] Preferably, the front and rear sides of the main frame are both fixedly installed with a base, a through hole is formed in the base, a support rod is fixedly connected with the edge position of the through hole on the upper surface of the base, the upper end of the support rod is fixedly connected with a top plate, the lower surface of the top plate is fixedly connected with a third hydraulic assembly, the telescopic rod of the third hydraulic assembly passes through the through hole on the base, the telescopic rod end of the third hydraulic assembly is fixedly connected with a positioning seat, and the lower surface of the positioning seat is integrally formed with ground grabbing clamping teeth, the ground grabbing clamping teeth are in a quadrangular pyramid structure, and multiple groups of ground grabbing clamping teeth are uniformly arranged on the lower surface of the positioning seat.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] 1. By setting up the auxiliary device composed of the main frame, the left walking mechanism, the right walking mechanism and the bottom support assembly, and by setting up the bottom support assembly composed of the mounting seat, the rotating rod, the ground grabbing plate and the secondary hydraulic assembly, the lower end of the ground grabbing plate is inserted into the soil layer by the secondary hydraulic assembly, so that the ground grabbing plate forms a gripping action with the ground, and then the main frame is moved by the traction of the primary hydraulic assembly, so as to assist the left walking mechanism and the right walking mechanism to move.

[0020] 2. By setting up the support rod, the top plate, the tertiary hydraulic assembly and the positioning seat on the base of the front and rear sides of the main frame, the positioning seat is inserted into the soil layer by the tertiary hydraulic assembly, so that the main frame can maintain stability when the ground grabbing plate is flat. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of the present application;

[0022] Figure 2 is Figure 1 is an enlarged structural schematic diagram of position A in the middle;

[0023] Figure 3 is a lower side view of the present application;

[0024] Figure 4 is Figure 3 is an enlarged structural schematic diagram of position B in the middle.

[0025] In the figure: main frame 1, left walking mechanism 2, right walking mechanism 3, bottom support assembly 4, mounting seat 5, rotating rod 6, ground grabbing plate 7, secondary hydraulic assembly 8, primary rotating shaft 9, primary rotating seat 10, secondary rotating seat 11, secondary rotating shaft 12, tertiary rotating shaft 13, primary ground grabbing tooth 14, secondary ground grabbing tooth 15, base 16, support rod 17, top plate 18, tertiary hydraulic assembly 19, positioning seat 20, ground grabbing tooth 21, primary hydraulic assembly 22. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely 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 scope of protection of the present application.

[0027] In order to make the purpose, technical scheme of the present application clear, complete and the advantages more clear and obvious, the embodiments of the present application are further described in detail below in combination with the drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present application, rather than all the embodiments, and are only used to explain the embodiments of the present application, and do not limit the embodiments of the present application, and all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by referring to examples. In the following description, many specific details are presented to provide a thorough understanding of the embodiments. However, it is obvious to those skilled in the art that the embodiments can not be limited to these specific details in practice. In some examples, well-known methods and structures are not described in detail to avoid unnecessarily complicating the embodiments. In addition, all embodiments can be used in combination with each other.

[0031] Please refer to Figures 1-4 The present application provides the following three preferred schemes:

[0032] Embodiment one: a large slope top coal fully mechanized excavation high efficiency excavation process, the large slope top coal fully mechanized excavation high efficiency excavation process comprises:

[0033] Step one: the installation process of the auxiliary device, in the installation process of the auxiliary device, the auxiliary device is first disassembled into the main frame 1, the left walking mechanism 2, the right walking mechanism 3 and the bottom support assembly 4, and then the disassembled main frame 1, left walking mechanism 2, right walking mechanism 3 and bottom support assembly 4 are sequentially transported to the underground, and then sequentially installed;

[0034] Step two: the preparation process before operation, in the preparation process before operation, the parts of the auxiliary device are first inspected, and then the auxiliary device is tested for forward and backward movement;

[0035] Step three: the operation process of the auxiliary device, in the operation process of the auxiliary device, the rear side of the tunneling machine is first fixed with the front side of the auxiliary device, and then the auxiliary device is used to assist the forward and backward movement of the tunneling machine.

[0036] In the preparation process before operation, the forward and backward movement test process, it is necessary to first check the condition of the surrounding roof, determine that the roof will not collapse and coal gangue will not fall in the state of the auxiliary device supporting the roof, and remove the operating personnel within ten meters in front and behind the working area of the auxiliary device, set up a warning ten meters away from the auxiliary device, and ensure that the handles of the auxiliary device are all in the middle position before starting the tunneling machine.

[0037] In the operation process of the auxiliary device, when the slope is small, the left walking mechanism 2 and the right walking mechanism 3 are used to drive the auxiliary device to move forward and backward.

[0038] In the operation process of the auxiliary device, when the slope is large, the left walking mechanism 2, the right walking mechanism 3 and the bottom support assembly 4 are used to drive the auxiliary device to move forward and backward.

[0039] Example two: based on example one, a large slope roof supporting coal fully mechanized tunneling efficient tunneling device, the large slope roof supporting coal fully mechanized tunneling efficient tunneling device assists the driving of the tunneling machine in the above large slope roof supporting coal fully mechanized tunneling efficient tunneling process: the tunneling device includes a tunneling machine and an auxiliary device.

[0040] The auxiliary device includes a main frame 1, a left walking mechanism 2, a right walking mechanism 3 and a bottom support assembly 4, the bottom of the main frame 1 is fixedly installed with a first hydraulic assembly 22, the left walking mechanism 2 and the right walking mechanism 3 are installed on the left and right sides of the main frame 1 respectively, and the left walking mechanism 2 and the right walking mechanism 3 are driven by driving structures, and the bottom support assembly 4 is fixedly connected with the telescopic rod of the first hydraulic assembly 22.

[0041] The bottom support assembly 4 is composed of the mounting seat 5, the rotating rod 6, the ground grabbing plate 7 and the secondary hydraulic assembly 8, the rotating rod 6 and the ground grabbing plate 7 are connected by welding, the rotating rod 6 is rotatably installed on the mounting seat 5 through the primary rotating shaft 9, the cylinder end of the secondary hydraulic assembly 8 is fixedly connected with the primary rotating seat 10, the telescopic rod end of the secondary hydraulic assembly 8 is fixedly connected with the secondary rotating seat 11, the primary rotating seat 10 is rotatably connected with the mounting seat 5 through the secondary rotating shaft 12, and the secondary rotating seat 11 is rotatably installed on the upper side of the ground grabbing plate 7 through the tertiary rotating shaft 13.

[0042] When the secondary hydraulic assembly 8 is in the process state, the ground grabbing plate 7 is in the vertical state, and when the auxiliary device is in the preparation stage of moving forward and backward, the telescopic rod of the primary hydraulic assembly 22 is in the half-process state, the auxiliary device composed of the main frame 1, the left walking mechanism 2, the right walking mechanism 3 and the bottom support assembly 4 is arranged, and the bottom support assembly 4 is composed of the mounting seat 5, the rotating rod 6, the ground grabbing plate 7 and the secondary hydraulic assembly 8, so that the lower end of the ground grabbing plate 7 is inserted into the soil layer by the secondary hydraulic assembly 8, so that the ground grabbing plate 7 and the ground form a gripping effect, and then the main frame 1 is moved by the traction of the primary hydraulic assembly 22, so that the left walking mechanism 2 and the right walking mechanism 3 are assisted to move.

[0043] In the embodiment three, the lower side of the ground grabbing plate 7 is provided with the primary ground grabbing teeth 14 and the secondary ground grabbing teeth 15, the primary ground grabbing teeth 14 and the secondary ground grabbing teeth 15 are integrally formed with the ground grabbing plate 7, and the primary ground grabbing teeth 14 and the secondary ground grabbing teeth 15 are arranged in a herringbone shape, so that when the ground grabbing plate 7 is stressed in the forward and backward directions, sufficient stress intensity can be ensured.

[0044] In the embodiment four, the bottom support assembly 4 is composed of the mounting seat 5, the rotating rod 6, the ground grabbing plate 7 and the secondary hydraulic assembly 8, the rotating rod 6 and the ground grabbing plate 7 are connected by welding, the rotating rod 6 is rotatably installed on the mounting seat 5 through the primary rotating shaft 9, the cylinder end of the secondary hydraulic assembly 8 is fixedly connected with the primary rotating seat 10, the telescopic rod end of the secondary hydraulic assembly 8 is fixedly connected with the secondary rotating seat 11, the primary rotating seat 10 is rotatably connected with the mounting seat 5 through the secondary rotating shaft 12, and the secondary rotating seat 11 is rotatably installed on the upper side of the ground grabbing plate 7 through the tertiary rotating shaft 13.

[0045] While the forgoing detailed description of the application has shown specific embodiments of the application, it is to be understood that changes and modifications can be made to the specific embodiments without departing from the spirit and scope of the application as defined by the claims set forth below.

Claims

1. A high-efficiency tunneling device for large-slope top-supporting coal seam, characterized in that: The high-efficiency tunneling device for large-slope top coal support includes a tunneling machine and an auxiliary device. The auxiliary device includes a main frame (1), a left traveling mechanism (2), a right traveling mechanism (3), and a bottom support assembly (4). A primary hydraulic assembly (22) is fixedly installed at the bottom of the main frame (1). The left traveling mechanism (2) and the right traveling mechanism (3) are respectively installed on the left and right sides of the main frame (1), and both the left traveling mechanism (2) and the right traveling mechanism (3) are driven by a drive structure. The bottom support assembly (4) is fixedly connected to the telescopic rod of the primary hydraulic assembly (22). The bottom support assembly (4) is composed of a mounting base (5), a rotating rod (6), a gripping plate (7), and a secondary hydraulic assembly (8). The rotating rod (6) and the gripping plate (7) are welded together. The rotating rod (6) is rotatably mounted on the mounting base (5) via a primary rotating shaft (9). The cylinder end of the secondary hydraulic assembly (8) is fixedly connected to a primary rotating seat (10), and the telescopic rod end of the secondary hydraulic assembly (8) is fixedly connected to a secondary rotating seat (11). The primary rotating seat (10) is rotatably connected to the mounting base (5) via a secondary rotating shaft (12), and the secondary rotating seat (11) is rotatably mounted on the upper side of the gripping plate (7) via a tertiary rotating shaft (13). When the secondary hydraulic component (8) is in the process state, the gripping floor (7) is in the vertical state, and when the auxiliary device is in the preparation stage of moving forward and backward, the telescopic rod of the primary hydraulic component (22) is in the half-process state. The lower side of the gripping floor (7) is provided with primary gripping teeth (14) and secondary gripping teeth (15). The primary gripping teeth (14) and secondary gripping teeth (15) are integrally formed with the gripping floor (7), and the primary gripping teeth (14) and secondary gripping teeth (15) are arranged in a herringbone pattern.

2. The high-efficiency tunneling device for large-slope top-supporting coal seam mining according to claim 1, characterized in that: The main frame (1) is fixedly installed with a base (16) on both the front and rear sides. The base (16) has a through hole, and a support rod (17) is fixedly connected to the upper surface of the base (16) at the edge of the through hole. The upper end of the support rod (17) is fixedly connected to a top plate (18), and the lower surface of the top plate (18) is fixedly connected to a three-stage hydraulic assembly (19). The telescopic rod of the three-stage hydraulic assembly (19) passes through the through hole on the base (16), and the end of the telescopic rod of the three-stage hydraulic assembly (19) is fixedly connected to a positioning seat (20). The lower surface of the positioning seat (20) is integrally formed with a gripping tooth (21). The gripping tooth (21) is a four-sided pyramid structure, and multiple sets of gripping teeth (21) are evenly arranged on the lower surface of the positioning seat (20).

3. A high-efficiency tunneling technology for large-slope top-supported coal seam, characterized in that: The high-slope roof-supporting coal seam tunneling high-efficiency tunneling process is used to operate any one of the high-slope roof-supporting coal seam tunneling high-efficiency tunneling devices described in claims 1-2 above: The high-slope roof-supporting coal seam tunneling high-efficiency tunneling process includes: Step 1: Installation process of auxiliary device. During the installation process of the auxiliary device, the auxiliary device is first disassembled into main frame (1), left travel mechanism (2), right travel mechanism (3), and bottom support assembly (4). Then, the disassembled main frame (1), left travel mechanism (2), right travel mechanism (3), and bottom support assembly (4) are transported to the well in sequence and then installed in sequence. Step 2: Preparation process before operation. In the preparation process before operation, first check each component of the auxiliary device, and then test run the auxiliary device by moving it forward and backward. Step 3: Operation of the auxiliary device. During the operation of the auxiliary device, the rear side of the tunneling machine is first fixed to the front side of the auxiliary device, and then the auxiliary device assists the tunneling machine in moving forward and backward.

4. The high-efficiency tunneling technology for large-slope top-supporting coal seam as described in claim 3, characterized in that: During the preparation process before operation, when moving forward and backward for trial operation, it is necessary to first check the condition of the nearby roof to ensure that the roof will not collapse or coal and gangue fall when the auxiliary device is supporting the roof. Personnel within ten meters before and after the auxiliary device's working area should be evacuated, and a warning line should be set up ten meters away from the auxiliary device. Before starting the tunneling machine, all handles of the auxiliary device should be in the neutral position.

5. The high-efficiency tunneling technology for large-slope top-supporting coal seam as described in claim 3, characterized in that: During the operation of the auxiliary device, when the slope is small, the auxiliary device is driven to move forward and backward by the left walking mechanism (2) and the right walking mechanism (3).

6. The high-efficiency tunneling technology for large-slope top-supporting coal seam as described in claim 3, characterized in that: During the operation of the auxiliary device, when the slope is large, the auxiliary device is driven to move forward and backward by the left walking mechanism (2), the right walking mechanism (3), and the bottom support assembly (4).

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