Safety protection device and method for mine roadway tunneling operation

Abstract

The invention provides a mine roadway tunneling operation safety protection device and a mine roadway tunneling operation safety protection method. A hydraulic rod, a supporting rod, a fixed top and a forward telescopic top are arranged above a supporting frame, the fixed top comprises two transverse fixed rods and a ceiling clamped and fixed to the inner sides of the two transverse fixed rods, and the two transverse fixed rods are arranged on the upper portion of the supporting frame; the forward telescopic roof comprises a movable roof close to the ceiling and movable transverse rods arranged on the two sides of the movable roof, the movable transverse rods are connected with hydraulic cylinders, and the forward telescopic roof comprises walking tires connected with a driving device. Therefore, the tires drive the supporting frame to advance under the mine roadway along with tunneling of the tunneling personnel through the driving device, manpower waste is reduced, the movable jacking and lifting protection device is arranged, the accident that pumice hurts people can be effectively avoided, and the safety of operators is guaranteed through the leakproofness of protection of the tunneling working face.

Description

Technical Field

[0001] The present invention relates to the technical field of mining, and more specifically, to a safety protection device and method for mine tunneling operations. Background Art

[0002] With the development of my country's mineral resources and the increase in mining depth, mining conditions are becoming more and more difficult. When mechanized excavation cannot be used for underground tunnels, manual excavation is necessary. Especially in areas with high ground pressure or broken surrounding rock, spalling and roof collapse often occur, which poses a great threat to the life safety of front-line workers.

[0003] The traditional construction method is that before excavation, floating rocks must be manually checked and pried out, which is time-consuming and physically demanding. During the operation, floating rocks are easily dropped and injured due to vibration or incomplete checking and prying. In order to ensure the safety of the workers, a device is needed to protect the workers from injury. However, the current protection device needs to be moved, which is extremely labor-intensive. In addition, since the tunnel workload is not constructed and the space above is larger, dangerous objects such as falling rocks often fall at the end of the protection device.

[0004] Therefore, there is an urgent need for a safety protection device and method for mine horizontal tunnel excavation operations that has a simple structure, can protect tunnel excavation personnel over a large range, is easy to move, can effectively avoid floating stone injuries, and ensure the safety of operators. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to provide a safety protection device and method for mine tunneling operations, so as to solve the problems in the prior art that the current protection device needs to be moved, which is extremely labor-intensive, and because the tunnel workload is not constructed and the space above is larger, dangerous objects such as falling rocks often occur at the end of the protection device.

[0006] The present invention provides a safety protection device for mine tunneling operation, comprising a support frame adapted to the mine and a travel tire arranged under the support frame;

[0007] A retractable support column is arranged above the support frame; wherein,

[0008] The support column includes a hydraulic rod and a support rod;

[0009] A transversely retractable protective roof is provided above the supporting column; wherein,

[0010] The protective roof includes a fixed roof and a forward telescopic roof;

[0011] The fixed roof comprises two transverse fixing rods and a roof clamped and fixed inside the two transverse fixing rods;

[0012] The forward telescopic roof comprises a movable roof arranged close to the ceiling, and movable cross bars arranged on both sides of the movable roof, and the movable cross bars are connected to hydraulic cylinders;

[0013] The traveling tire is connected with a driving device, and the driving device is used for driving the traveling tire to move.

[0014] Preferably, the hydraulic rod is arranged at the bottom of the support rod, and the hydraulic rod is connected to a hydraulic pump station for driving the support rod to move up and down.

[0015] Preferably, the top end of the support rod is fixed to the bottom of the fixed top by welding.

[0016] Preferably, the movable roof is arranged at the bottom of the ceiling.

[0017] The movable cross bar is arranged between the two transverse fixed bars;

[0018] Furthermore, when the movable cross bar is pushed out by the hydraulic cylinder, the movable top is driven to move toward the front end; the maximum extension state of the movable top is that the tail of the movable top is horizontally connected to the ceiling.

[0019] Preferably, a mesh is arranged above the fixed top.

[0020] Preferably, the support columns are arranged in two rows, and each row is arranged with at least five support columns;

[0021] The two rows of supporting columns are arranged opposite to each other.

[0022] Preferably, a transverse reinforcement rod and a longitudinal reinforcement rod are provided below the fixed top;

[0023] The transverse reinforcement rod is arranged in parallel between the two transverse fixing rods;

[0024] The longitudinal fixing rod connects two supporting columns which are arranged opposite to each other.

[0025] Preferably, symmetrically arranged diagonal support rods are provided between the support columns and the transverse support rods.

[0026] Preferably, the hydraulic cylinder and the hydraulic rod are connected to a hydraulic pump station, and the hydraulic pump station is arranged behind the support frame.

[0027] The present invention also provides a safety protection method for mine tunneling operation, which is characterized in that the mine tunneling operation safety protection device as described above is used to protect the tunneling personnel in the tunnel, including:

[0028] The driving device enables the traveling tires to drive the support frame to move forward under the mine tunnel as the excavation personnel excavate;

[0029] The hydraulic rod is synchronously adjusted to lift the support rod so that the fixed top fits the lowest point of the tunnel, and the movable cross bar is adjusted to drive the movable top forward by adjusting the hydraulic cylinder so that the end of the movable top abuts against the working surface of the tunnel.

[0030] It can be seen from the above technical scheme that the safety protection device and method for mine tunneling operations provided by the present invention are provided by arranging a retractable support column above the support frame, the support column includes a hydraulic rod and a support rod, a transversely retractable protective top is arranged above the support column, the protective top includes a fixed top and a forward retractable top, the fixed top includes two transverse fixed rods and a ceiling clamped and fixed inside the two transverse fixed rods, the forward retractable top includes a movable top arranged close to the ceiling, and movable cross bars arranged on both sides of the movable top, and the movable cross bars are connected to a hydraulic cylinder , and includes a walking tire connected to a driving device, so that the walking tire drives the support frame to move forward under the mine level tunnel as the excavation personnel excavate through the driving device, reducing manpower waste, and lifting the support rod by synchronously adjusting the hydraulic rod to make the fixed top fit the lowest point of the tunnel, and by adjusting the hydraulic cylinder, the movable cross bar drives the movable top forward, so that the end of the movable top abuts against the working surface of the tunnel, thereby improving the airtightness of the protection device on the excavation working surface, which can effectively avoid floating stone injuries and ensure the safety of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] By referring to the following description in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other objects and results of the present invention will become more clear and easy to understand. In the accompanying drawings:

[0032] Figure 1 A side view of a safety protection device for mine tunneling operation according to an embodiment of the present invention;

[0033] Figure 2 It is a rear view of the safety protection device for mine tunneling operation according to an embodiment of the present invention;

[0034] Figure 3 The present invention is a flowchart of a safety protection method for mine tunneling operations according to an embodiment of the present invention.

[0035] The accompanying drawings are marked as follows: 1. support frame; 2. support column; 3. hydraulic rod; 4. support rod; 5. protective top; 6. fixed top; 7. forward telescopic top; 8. hydraulic cylinder; 9. hydraulic pump station; 10. walking tire; 11. diagonal support rod. DETAILED DESCRIPTION

[0036] The traditional construction method is that before excavation, floating rocks must be manually checked and pried out, which is time-consuming and physically demanding. During the operation, floating rocks are easily dropped and injured due to vibration or incomplete checking and prying. In order to ensure the safety of the workers, a device is needed to protect the workers from injury. However, the current protection device needs to be moved, which is extremely labor-intensive. In addition, since the tunnel workload is not constructed and the space above is larger, dangerous objects such as falling rocks often fall at the end of the protection device.

[0037] In view of the above problems, the present invention provides a safety protection device and method for mine tunneling operations. The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] In order to illustrate the mine tunneling operation safety protection device and method provided by the present invention, Figure 1-Figure 3 The embodiments of the present invention are exemplarily indicated.

[0039] The following description of exemplary embodiments is merely illustrative in nature and is not intended to limit the present invention and its application or use. Technologies and devices known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technologies and devices should be considered as part of the specification.

[0040] like Figure 1-Figure 2 As shown together, an embodiment of the present invention provides a safety protection device for mine tunneling operations, including a support frame 1 adapted to the mine and a traveling tire 10 arranged under the support frame 1, wherein the traveling tire 10 is connected to a driving device for driving the traveling tire to move, thereby enabling the entire protection device to achieve electric steady-speed forward movement in the tunnel without the need for human push, thereby reducing human labor.

[0041] In this embodiment, a retractable supporting column 2 is arranged above the supporting frame 1; wherein the supporting column 2 includes a hydraulic rod 3 and a supporting rod 4; a transversely retractable protective roof 5 is arranged above the supporting column 2; wherein the protective roof includes a fixed roof 6 and a forward retractable roof 7; the fixed roof 6 includes two transverse fixed rods and a ceiling clamped and fixed on the inner sides of the two transverse fixed rods; the forward retractable roof 7 includes a movable roof arranged close to the ceiling, and movable cross bars arranged on both sides of the movable roof, and the movable cross bars are connected to a hydraulic cylinder.

[0042] Specifically, there is no restriction on the upper and lower positions of the hydraulic rod and the support frame, as long as all the supporting columns can be raised and lowered synchronously. In a specific embodiment of the present invention, the hydraulic rod is arranged at the bottom of the support rod, and the hydraulic rod is connected to a hydraulic pump station for driving the support rod to move up and down. The top end of the support rod is welded and fixed to the bottom of the fixed top, thereby improving the stability of the supporting column and the fixed top, and the hydraulic rod is arranged at the bottom, which is convenient for maintenance in case of a fault.

[0043] There is no specific restriction on the specific setting method of the protective roof. In a specific embodiment, the movable roof is arranged at the bottom of the ceiling, and two movable cross bars are arranged, both of which are arranged between two transverse fixed bars; the two sides of the movable roof are respectively fixed to the two movable cross bars, so that when the movable cross bars are pushed out by the hydraulic cylinder, the movable roof is driven to move toward the front end (the end close to the excavation working face); the maximum extension state of the movable roof is that the tail of the movable roof is laterally connected to the ceiling, so that even when the movable roof is extended to the maximum state, there will be no gap between the movable roof and the fixed roof.

[0044] The movable roof does not need to be used every time. For example, when the working surface to be excavated in the tunnel is completely vertical downward and is in a state similar to that of the tunnel top, there is no need to open the movable roof. When excavating, the front end of the fixed surface can be directly against the working surface to protect the excavation workers below to the greatest extent. However, when the working surface to be excavated in the tunnel is completely vertical downward, for example, the wall above the working surface is concave or inclined, or the tunnel top is roughly perpendicular to the working surface, but there is tunnel space on the side of the vertical line close to the working surface, the movable roof can be opened to make the movable roof as close to the front as possible until it is as close to the side wall space above the tunnel working surface as possible. In this way, the excavation workers can be protected from falling rocks from above to the greatest extent.

[0045] The specific number of the support columns is not limited and can be determined according to the space of the tunnel. In this embodiment, the support columns are arranged in two rows, each row is provided with at least five support columns; and the two rows of support columns are arranged opposite to each other. In addition, a transverse reinforcement rod and a longitudinal reinforcement rod are arranged below the fixed top; the transverse reinforcement rod is arranged in parallel between the two transverse fixing rods, and the longitudinal fixing rod connects the two oppositely arranged support columns. A symmetrically arranged diagonal support rod 11 is arranged between the support column and the transverse support rod, thereby further improving the stability of the entire device.

[0046] In addition, a mesh is provided above the fixed top to further prevent gravel from falling and hitting the fixed top to avoid producing noisy sounds.

[0047] The hydraulic cylinder and the hydraulic rod are connected with a hydraulic pump station, and the hydraulic pump station is arranged behind the support frame. While providing power for the hydraulic cylinder and the hydraulic rod, it is reasonably arranged to prevent the hydraulic pump station from occupying the space in the excavation direction. The fixing method of the hydraulic cylinder and the end of the movable cross bar, and the fixing method of the hydraulic rod and the bottom of the supporting column are not restricted here. Welding, casing connection, or even flange connection can be used, as long as it can meet the requirements of stable fixation.

[0048] More specifically, in a detailed embodiment, the bottom support frame can be processed with channel steel of specification [20, the width and height are determined according to the specifications of the construction tunnel, the length can be about 3m, which can accommodate the excavation workers, the support rod can be processed with channel steel of model [14, the spacing can be set to about 0.6m, and a hydraulic rod with a stroke of about 0.8 meters can be used to facilitate height adjustment. The top uses square steel with a specification of 180×180mm as a fixed rod. The entire device is easy to obtain materials and simple to manufacture.

[0049] As described above, the safety protection device for mine tunneling operations provided by the present invention has a simple operation mode, a fast travel speed, can be moved at any time, and can be moved automatically to avoid wasting manpower. The setting of the forward telescopic top increases the shielding distance of the overall equipment and improves the safety performance. It is also easy to install, has good stability, low cost, and saves manpower and material resources.

[0050] like Figure 3 As shown, the present invention also provides a safety protection method for mine horizontal tunnel excavation operation, using the above-mentioned mine horizontal tunnel excavation operation safety protection device to protect the excavation personnel in the tunnel, comprising:

[0051] S1: The driving device enables the traveling tires to drive the support frame to move forward under the mine tunnel as the excavation personnel excavate;

[0052] S2: synchronously adjusting the hydraulic rod to lift the support rod so that the fixed top fits the lowest point of the tunnel, and adjusting the hydraulic cylinder so that the movable cross bar drives the movable top forward so that the end of the movable top abuts against the working surface of the tunnel.

[0053] For a more specific implementation of the above-mentioned mine tunneling operation safety protection method, please refer to the specific embodiment of the above-mentioned mine tunneling operation safety protection device, which will not be described in detail here.

[0054] As described above with reference to the accompanying drawings, the safety protection device and method for mine tunneling operations proposed in the present invention are described by way of example. However, those skilled in the art should understand that various improvements can be made to the safety protection device and method for mine tunneling operations proposed in the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the attached claims.

Claims

1. A safety protection device for mine tunneling operation, characterized in that: It includes a support frame adapted to the mine and a traveling tire arranged under the support frame; A retractable support column is arranged above the support frame; wherein, The support column includes a hydraulic rod and a support rod; A transversely retractable protective roof is provided above the supporting column; wherein, The protective roof includes a fixed roof and a forward telescopic roof; The fixed roof comprises two transverse fixing rods and a roof clamped and fixed inside the two transverse fixing rods; The forward telescopic roof comprises a movable roof arranged close to the ceiling, and movable cross bars arranged on both sides of the movable roof, and the movable cross bars are connected to hydraulic cylinders; The traveling tire is connected with a driving device, and the driving device is used for driving the traveling tire to move.

2. The safety protection device for mine tunneling operation according to claim 1, characterized in that: The hydraulic rod is arranged at the bottom of the supporting rod, and the hydraulic rod is connected to a hydraulic pump station for driving the supporting rod to move up and down.

3. The safety protection device for mine tunneling operation according to claim 2, characterized in that: The top end of the support rod is welded and fixed to the bottom of the fixed top.

4. The safety protection device for mine tunneling operation as claimed in claim 3 is characterized in that: The movable roof is arranged at the bottom of the ceiling, The movable cross bar is arranged between the two transverse fixed bars; Furthermore, when the movable cross bar is pushed out by the hydraulic cylinder, the movable top is driven to move toward the front end; the maximum extension state of the movable top is that the tail of the movable top is horizontally connected to the ceiling.

5. The safety protection device for mine tunneling operation according to claim 1, characterized in that: A mesh is arranged above the fixed top.

6. The safety protection device for mine tunneling operation according to claim 1, characterized in that: The support columns are arranged in two rows, and each row is arranged with at least five support columns; The two rows of supporting columns are arranged opposite to each other.

7. The safety protection device for mine tunneling operation according to claim 6, characterized in that: A transverse reinforcement rod and a longitudinal reinforcement rod are arranged below the fixed top; The transverse reinforcement rod is arranged in parallel between the two transverse fixing rods; The longitudinal fixing rod connects two supporting columns which are arranged opposite to each other.

8. The safety protection device for mine tunneling operation according to claim 7, characterized in that: Symmetrically arranged diagonal support rods are arranged between the support columns and the transverse support rods.

9. The safety protection device for mine tunneling operation as described in claim 2, characterized in that: The hydraulic cylinder and the hydraulic rod are connected with a hydraulic pump station, and the hydraulic pump station is arranged behind the support frame.

10. A safety protection method for mine tunneling operation, characterized in that: The mine tunneling safety protection device as claimed in any one of claims 1 to 9 is used to protect tunneling personnel in the tunnel, comprising: The driving device enables the traveling tires to drive the support frame to move forward under the mine tunnel as the excavation personnel excavate; The hydraulic rod is synchronously adjusted to lift the support rod so that the fixed top fits the lowest point of the tunnel, and the movable cross bar is adjusted to drive the movable top forward by adjusting the hydraulic cylinder so that the end of the movable top abuts against the working surface of the tunnel.

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