A five-boom roof bolter for coal mines

Abstract

The present invention discloses a five-arm bolt drill rig for coal mines, comprising: a rotary bottom platform, a traveling mechanism, a roof bolt bearing assembly, a rib bolt drill arm assembly and a power assembly. The traveling mechanism is connected to the rotary bottom platform through a first rotary drive and is located below the rotary bottom platform. A push-out platform is slidably arranged on one side of the top surface of the rotary bottom platform along the length direction. A scissors frame assembly is installed on the push-out platform, and the upper part of the scissors frame assembly is connected to the roof bolt bearing assembly. The rib bolt drill arm assemblies are two groups and are symmetrically arranged at both ends of the other side of the top surface of the rotary bottom platform along the length direction. The power assembly is arranged on the rotary bottom platform and is located between the two groups of rib bolt drill arm assemblies, and is used to provide power support for the respective actions of the first rotary drive, the traveling mechanism, the scissors frame assembly, the roof bolt bearing assembly and the rib bolt drill arm assembly. The five-arm bolt drill rig for coal mines of the present invention has a compact structure design and high operation efficiency, greatly improving the safety of operators and the support safety performance.

Description

Technical Field

[0001] The present invention relates to the technical field of underground roadway equipment in coal mines, and more particularly to a five-arm bolt drill rig for coal mines. Background Art

[0002] With the rapid development of China's economy, the demand for energy, especially coal, is increasing, and the domestic coal production is also rising steadily. While the coal output increases year by year, the safety work in coal mines becomes more and more important, and many original operation methods are facing challenges from advanced technologies. At present, in many coal mine tunneling faces, roadheaders have been widely used, and the tunneling speed has been greatly improved compared with the past. However, based on the premise of coal mine safety production, for each cut of coal by the roadheader, bolt support operations need to be carried out on the roof and sidewalls. Currently, in many coal mines, in addition to manual anchoring support, the method of separately carrying out roof anchoring and sidewall anchoring is mostly used. One set of equipment is used for roof support, and manual or simple anchoring equipment is used for sidewall support. This not only has low efficiency, but also wastes a lot of manpower and material resources, and the effect is not good. Summary of the Invention

[0003] The present invention aims to solve at least one of the above technical problems in the prior art to some extent. In view of this, the present invention provides a five-arm bolt drill rig for coal mines with a compact structure design, high operation efficiency, and greatly improved safety for operators and support safety performance.

[0004] The present invention provides a five-arm bolt drill rig for coal mines, including: a rotary bottom platform, a traveling mechanism, a roof anchor bearing assembly, a side anchor drill arm assembly, and a power assembly. The traveling mechanism is connected to the rotary bottom platform through a first rotary drive and is located below the rotary bottom platform; on one side of the top surface of the rotary bottom platform along the length direction, a push-out platform is slidably provided, and a scissors frame assembly is installed on the push-out platform. The upper part of the scissors frame assembly is connected to the roof anchor bearing assembly; the side anchor drill arm assemblies are two groups and are symmetrically arranged at both ends on the other side of the top surface of the rotary bottom platform along the length direction; the power assembly is arranged on the rotary bottom platform and is located between the two groups of side anchor drill arm assemblies, and is used to provide power support for the respective actions of the first rotary drive, the traveling mechanism, the scissors frame assembly, the roof anchor bearing assembly, and the side anchor drill arm assembly.

[0005] According to an embodiment of the present invention, a plurality of push-out guide rails are provided between the push-out platform and the rotary bottom platform, and a plurality of push-out oil cylinders are provided on the rotary bottom platform. The top end of the push-out oil cylinder is connected to the push-out platform to drive the push-out platform to move on the push-out guide rails, wherein the push-out guide rails are arranged along the width extension direction of the rotary bottom platform.

[0006] According to an embodiment of the present invention, the scissors support assembly includes a scissors support lifting mechanism and a lifting oil cylinder for pushing the scissors support lifting mechanism to move up and down.

[0007] According to an embodiment of the present invention, the roof bolt bearing assembly includes a roof bolt bearing frame body, bearing guide rails arranged inside the roof bolt bearing frame body, a moving oil cylinder, a sliding frame and a roof bolt drilling arm. The roof bolt bearing frame body is arranged at the top end of the scissors support lifting mechanism. There are multiple bearing guide rails which are evenly arranged in the horizontal direction. A sliding frame is slidably arranged on each bearing guide rail and is driven by the moving oil cylinder to move. A roof bolt drilling arm is installed on each sliding frame.

[0008] According to an embodiment of the present invention, the rib bolt drilling arm assembly includes a first rib bolt drilling frame, a second rib bolt drilling frame and a rib bolt drilling arm. The first rib bolt drilling frame is fixed on the rotary bottom platform through a second rotary drive. The second rib bolt drilling frame is connected to the first rib bolt drilling frame through a third rotary drive. The rib bolt drilling arm is arranged on the second rib bolt drilling frame.

[0009] According to an embodiment of the present invention, the power assembly includes an electric drive unit, a hydraulic station and a magnetic starter. The electric drive unit is used to provide the required power support for the roof bolter. The hydraulic station is used to provide the required hydraulic source in the roof bolter. The magnetic starter is connected to the power motor in the roof bolter.

[0010] According to an embodiment of the present invention, two relatively arranged temporary support assemblies are arranged on the roof bolt bearing frame body.

[0011] According to an embodiment of the present invention, the temporary support assembly includes a support rod, a support oil cylinder and a support plate. The bottom end of the support rod is hinged to the roof bolt bearing frame body. The bottom end of the support oil cylinder is hinged to the roof bolt bearing frame body. The top end of the support oil cylinder is hinged to the support rod. The support plate is hinged to the top end of the support rod.

[0012] According to an embodiment of the present invention, two symmetrically arranged legs are arranged below the pushing platform. A leg oil cylinder is arranged between the legs and the pushing platform.

[0013] According to an embodiment of the present invention, the traveling mechanism is a hydraulic motor crawler traveling mode.

[0014] The five-arm bolt drill rig for coal mines of the present invention combines roof support and sidewall support into one. After the roadheader completes tunneling, the five-arm bolt drill rig can complete the anchoring support of the roadway roof and sidewalls at one time, effectively saving manpower and greatly improving the operation efficiency of roadway support, thereby significantly increasing the daily footage of roadway tunneling operations. The five-arm bolt drill rig is controlled by a wireless remote control mode, greatly improving the safety of operators and the support safety performance, with a compact structure design and high operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is a perspective view of a five-arm bolt drill rig for coal mines according to the present invention.

[0016] Figure 2 FIG. is a front view of a five-arm bolt drill rig for coal mines according to the present invention.

[0017] Figure 3 FIG. is a left view of a five-arm bolt drill rig for coal mines according to the present invention.

[0018] Figure 4 is Figure 3 a schematic structural view of the view in the A-A direction in FIG.

[0019] Figure 5 FIG. is a top view of a five-arm bolt drill rig for coal mines according to the present invention.

[0020] Figure 6 is Figure 5 a schematic structural view of the view in the B-B direction in FIG.

[0021] Reference numerals: 1 - slewing bottom platform; 2 - traveling mechanism; 3 - top anchor bearing assembly; 4 - side anchor drill arm assembly; 5 - power assembly; 6 - first slewing drive; 7 - pushing platform; 8 - scissors frame assembly; 9 - temporary support assembly; 10 - wireless remote control receiver; 31 - top anchor bearing frame; 32 - bearing guide rail; 33 - moving oil cylinder; 34 - carriage; 35 - top anchor drill arm; 41 - first side anchor drill frame; 42 - second side anchor drill frame; 43 - side anchor drill arm; 44 - second slewing drive; 45 - third slewing drive; 51 - electric drive unit; 52 - hydraulic station; 53 - magnetic starter; 71 - pushing guide rail; 72 - pushing oil cylinder; 73 - support leg; 74 - support leg oil cylinder; 81 - scissors frame lifting mechanism; 91 - support rod; 92 - support oil cylinder; 93 - support plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0023] As Figures 1 to 6 shown, a five-arm bolt drill rig for coal mines includes: a rotary bottom platform 1, a traveling mechanism 2, a roof bolt bearing assembly 3, a rib bolt drill arm assembly 4, and a power assembly 5. The traveling mechanism 2 is connected to the rotary bottom platform 1 through a first rotary drive 6 and is located below the rotary bottom platform 1. A push-out platform 7 is slidably provided on one side of the top surface of the rotary bottom platform 1 along the length direction. A scissors lift assembly 8 is installed on the push-out platform 7. The upper part of the scissors lift assembly 8 is connected to a roof bolt bearing assembly 3 for performing roof bolt support and anchoring operations. The rib bolt drill arm assembly 4 is in two groups and is symmetrically arranged at both ends of the other side of the top surface of the rotary bottom platform 1 along the length direction. The rib bolt drill arm assembly 4 can be used for side rib support and anchoring operations. The power assembly 5 is provided on the rotary bottom platform 1 and is located between the two groups of rib bolt drill arm assemblies 4 to provide power support for the respective actions of the first rotary drive 6, the traveling mechanism 2, the scissors lift assembly 8, the roof bolt bearing assembly 3, and the rib bolt drill arm assembly 4.

[0024] The five-arm bolt drill rig for coal mines of the present invention combines roof support and side rib support into one. After the roadheader completes tunneling, the five-arm bolt drill rig can complete the anchoring support of the roadway roof and side ribs at one time, effectively saving manpower and greatly improving the operation efficiency of roadway support, thereby significantly increasing the daily footage of roadway tunneling operations. The five-arm bolt drill rig is controlled in a wireless remote control mode, greatly improving the safety of operators and the support safety performance, with a compact structure design and high operation efficiency.

[0025] As Figures 1 to 4 shown, a plurality of push-out guide rails 71 are provided between the push-out platform 7 and the rotary bottom platform 1. A plurality of push-out cylinders 72 are provided on the rotary bottom platform 1. The top end of the push-out cylinder 72 is connected to the push-out platform 7 to drive the push-out platform 7 to move on the push-out guide rails 71. Among them, the push-out guide rails 71 are arranged along the width extension direction of the rotary bottom platform 1. Two symmetrically arranged legs 73 are provided below the push-out platform 7. A leg cylinder 74 is provided between the leg 73 and the push-out platform 7. The push-out cylinder 72 drives the push-out platform 7 to extend along the side direction of the bolt drill rig, and then the legs 73 are extended to support the push-out platform 7 to complete the preliminary support process.

[0026] As Figure 1 、 Figure 2 and Figure 4As shown, the scissors lift assembly 8 includes a scissors lift mechanism 81 and a lift cylinder (not shown in the figure) for pushing the scissors lift mechanism 81 up and down. The scissors lift mechanism 81 is lifted by the lift cylinder pushing upwards, so that the roof bolt bearing assembly 3 rises to the predetermined working height.

[0027] As Figures 1 to 4 shown, the roof bolt bearing assembly 3 includes a roof bolt bearing frame body 31, a bearing guide rail 32 arranged inside the roof bolt bearing frame body 31, a moving cylinder 33, a carriage 34 and a roof bolt drilling arm 35. The roof bolt bearing frame body 31 is arranged at the top end of the scissors lift mechanism 81. There are multiple bearing guide rails 32 which are evenly arranged in the horizontal direction. A carriage 34 is slidably arranged on each bearing guide rail 32 and is driven by the moving cylinder 33. A roof bolt drilling arm 35 is installed on each carriage 34. It should be understood that the roof bolt drilling arm 35 uses a hydraulic cylinder in the prior art to drive a chain to drive the roof bolt drilling arm to move up and down. After the scissors lift mechanism 81 rises to the predetermined working height, the anchoring work of the roof bolt drilling arm 35 can be started. In the five-arm bolt drill of the present invention, the number of roof bolt drilling arms 35 is three, and the relative distance between two adjacent roof bolt drilling arms 35 can be effectively controlled by the moving cylinder 33 driving the carriage 34, so as to quickly and stably complete the anchoring work at the specified position.

[0028] As Figure 1 and Figure 5 shown, the rib bolt drilling arm assembly 4 includes a first rib bolt drill frame 41, a second rib bolt drill frame 42 and a rib bolt drilling arm 43. The first rib bolt drill frame 41 is fixed on the rotary base platform 1 through a second slewing drive 44. The second rib bolt drill frame 42 is connected to the first rib bolt drill frame 41 through a third slewing drive 45. The rib bolt drilling arm 43 is arranged on the second rib bolt drill frame 42. It should be understood that in the first rib bolt drill frame 41, a hydraulic cylinder in the prior art is used to drive a chain to drive the second rib bolt drill frame 42 to move up and down. Similarly, in the second rib bolt drill frame 42, a hydraulic cylinder in the prior art is also used to drive a chain to drive the rib bolt drilling arm 43 to move up and down. The hydraulic cylinder is provided with hydraulic power by a hydraulic station and drives the chain to move. Its specific structure will not be described in detail here. Through the second slewing drive 44, it is convenient to control the rotation angle of the first rib bolt drill frame 41. Through the third slewing drive 45, it is convenient to control the rotation angle of the rib bolt drilling arm 43.

[0029] As Figure 1 、 Figure 5 and Figure 6As shown in the figure, the powertrain 5 includes an electric drive unit 51, a hydraulic station 52, and a magnetic starter 53. The electric drive unit 51 is used to provide the required power support for the bolter drill jumbo. The hydraulic station 52 is used to provide the required hydraulic source in the bolter drill jumbo, that is, the hydraulic station 52 provides a hydraulic power source for various cylinders in the bolter drill jumbo. The magnetic starter 53 is connected to the power motor in the bolter drill jumbo, and the power motor provides a power source for the operation of each component of the bolter drill jumbo.

[0030] As Figures 1 to 4 shown in the figure, there are two relatively arranged temporary support assemblies 9 on the top anchor bearing frame 31. The temporary support assembly 9 includes a support rod 91, a support cylinder 92, and a support plate 93. The bottom end of the support rod 91 is hinged to the top anchor bearing frame 31. The bottom end of the support cylinder 92 is hinged to the top anchor bearing frame 31. The top end of the support cylinder 92 is hinged to the support rod 91. The support plate 93 is hinged to the top end of the support rod 91. When the top anchor bearing frame 31 rises to the predetermined working height, the support cylinder 92 is pushed out to make the support plate 93 press against the roadway roof.

[0031] As Figure 1 shown in the figure, a wireless remote control system for controlling the movement of the traveling mechanism 2 is provided on the slewing base platform 1. The wireless remote control system can adopt the remote control mode in the existing technology. At the same time, a wireless remote control receiver 10 is provided on the slewing base platform 1. It should be understood that the wireless remote control receiver 10 is used in cooperation with the remote control transmitter to perform remote and effective operation on the traveling action of the bolter drill jumbo. The remote control transmitter has both manual and remote control modes, so as to effectively improve the operation accuracy and safety of the bolter drill jumbo, and effectively improve the safety factor of the operator.

[0032] As Figures 1 to 6 shown in the figure, the traveling mechanism 2 is a hydraulic motor crawler traveling mode, and the crawler is driven by a low-speed high-torque hydraulic motor, and the driving process is stable and easy to control.

[0033] As Figures 1 to 6 shown in the figure, the specific operation process of the five-arm bolter drill jumbo for coal mines of the present invention is as follows:

[0034] During operation, the roadheader retreats, and the traveling mechanism 2 is driven through the wireless remote control system to travel to the front of the roadheader and between the coal wall. The slewing base platform 1 rotates 90 degrees through the first slewing drive 6, and the top anchor bearing frame 31 is parallel to the coal wall of the working face. The pushing platform 7 is driven by the pushing cylinder 72 to extend. Subsequently, the outrigger 73 is extended to support the pushing platform 7. Then, the scissor lift mechanism 81 is driven to raise the top anchor bearing frame 31 to the predetermined working height. The support cylinder 92 of the temporary support assembly 9 is driven to raise the support plate 93 to press against the roadway roof. The lateral position of the top anchor drill arm 35 is adjusted by driving the moving cylinder 33. When the drilling position of the top anchor drill arm 35 is determined, the top anchor drill arm 35 can be operated to perform the anchoring operation;

[0035] During the operation of the roof anchor, the side anchor drilling boom 43 can be operated simultaneously. At this time, the first side anchor drilling rig 41 is rotated 90 degrees through the second slewing drive 44 to deploy the side anchor drilling boom 43. Then, the side anchor drilling boom 43 is rotated 90 degrees perpendicular to the sidewall of the roadway through the third slewing drive 45. The height of the side anchor drilling boom 43 is adjusted by the first side anchor drilling rig 41 and the second side anchor drilling rig 42.

[0036] When the anchoring operation is completed, adjust each mechanism to the initial position according to the reverse steps above, and then retreat the vehicle to the rear of the roadheader. The roadheader continues the coal cutting operation for the next cycle.

[0037] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A five-arm bolt drill jumbo for coal mines, characterized in that, Including: A rotary bottom platform, a traveling mechanism, a roof bolt bearing assembly, a rib bolt drilling arm assembly, and a power assembly. The traveling mechanism is connected to the rotary bottom platform through a first rotary drive and is located below the rotary bottom platform. On one side of the top surface of the rotary bottom platform along the length direction, a push-out platform is slidably arranged. A scissors lift assembly is installed on the push-out platform, and the roof bolt bearing assembly is connected to the upper part of the scissors lift assembly. The rib bolt drilling arm assembly is divided into two groups and symmetrically arranged at both ends of the other side of the top surface of the rotary bottom platform along the length direction. The power assembly is arranged on the rotary bottom platform and is located between the two groups of rib bolt drilling arm assemblies, and is used to provide power support for the actions of the first rotary drive, the traveling mechanism, the scissors lift assembly, the roof bolt bearing assembly, and the rib bolt drilling arm assembly respectively. A plurality of push-out guide rails are arranged between the push-out platform and the rotary bottom platform. A plurality of push-out oil cylinders are arranged on the rotary bottom platform. The top end of the push-out oil cylinder is connected to the push-out platform to drive the push-out platform to move on the push-out guide rails, wherein the push-out guide rails are arranged along the width extension direction of the rotary bottom platform. The scissors lift assembly includes a scissors lift mechanism and a lift oil cylinder for pushing the scissors lift mechanism to move up and down. The roof bolt bearing assembly includes a roof bolt bearing frame body, bearing guide rails arranged inside the roof bolt bearing frame body, moving oil cylinders, and sliding frames and roof bolt drilling arms. The roof bolt bearing frame body is arranged at the top end of the scissors lift mechanism. The bearing guide rails are multiple and evenly arranged in the horizontal direction. A sliding frame is slidably arranged on each bearing guide rail and is driven to move by the moving oil cylinder. A roof bolt drilling arm is installed on each sliding frame.

2. The five-arm bolt drill jumbo for coal mine according to claim 1, wherein, The rib bolt drilling arm assembly includes a first rib bolt drill frame, a second rib bolt drill frame, and a rib bolt drilling arm. The first rib bolt drill frame is fixed on the rotary bottom platform through a second rotary drive. The second rib bolt drill frame is connected to the first rib bolt drill frame through a third rotary drive. The rib bolt drilling arm is arranged on the second rib bolt drill frame.

3. A five-arm bolt drill rig for coal mines according to claim 1, characterized in that, The power assembly includes an electric drive unit, a hydraulic station, and a magnetic starter. The electric drive unit is used to provide the required power support for the bolt drill jumbo. The hydraulic station is used to provide the required hydraulic source in the bolt drill jumbo. The magnetic starter is connected to the power motor in the bolt drill jumbo.

4. A five-arm bolt drill rig for coal mines according to claim 1, characterized in that, Two relatively arranged temporary support assemblies are arranged on the roof bolt bearing frame body.

5. A five-arm bolt drill rig for coal mines according to claim 4, characterized in that, The temporary support assembly includes a support rod, a support oil cylinder, and a support plate. The bottom end of the support rod is hinged to the roof bolt bearing frame body. The bottom end of the support oil cylinder is hinged to the roof bolt bearing frame body. The top end of the support oil cylinder is hinged to the support rod. The support plate is hinged to the top end of the support rod.

6. The five-arm bolt drill jumbo for coal mines according to claim 1, wherein, Two symmetrically arranged legs are arranged below the push-out platform. A leg oil cylinder is arranged between the leg and the push-out platform.

7. A five-arm roof bolter for coal mines according to claim 1, characterized in that, The traveling mechanism is a hydraulic motor crawler traveling mode.

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