Comprehensive mechanized operation system for coal mine roof-cutting entry retaining

Abstract

The utility model relates to the technical field of mine gob-side entry retaining, in particular to a comprehensive mechanized operation system for coal mine roof-cutting entry retaining, which is characterized in that a running track is mounted at the top of a roadway, a monorail crane device is mounted on the running track and comprises a traction device, an air valve and a pneumatic hoist, and a lifting hook is connected below the pneumatic hoist; the anchor cable drill carriage device, the hydraulic drill carriage device and the roadway shaping vehicle device are sequentially arranged on the roadway bottom plate from front to back; a translation oil cylinder is arranged above a first crawler walking motor of the anchor cable drill carriage device, and a control handle and an automatic anchor rod drill arm are arranged above the translation oil cylinder. An oil cylinder and an operating handle device are arranged above a crawler walking motor II of the hydraulic drill carriage device, and a hydraulic motor is arranged on a connected drill rod; a shovel plate is installed on the front portion of a third crawler walking motor of the roadway shaping vehicle device, and a control handle and a working arm are arranged on the upper portion of the third crawler walking motor. The operation system realizes mechanical connection of entry retaining construction, and is time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of mine gob-side lane retention, in particular to a comprehensive mechanized operation system for coal mine top cutting and lane retention. Background Art

[0002] Cutting the top and retaining the lane is a new type of lane retaining method along the goaf. It is proposed based on the "cutting the top and short wall beam" theory. The main principle is to use the mine pressure, adopt advanced pre-splitting blasting, constant resistance large deformation anchor cable, lane retaining surrounding rock support and other technologies to actively control the movement state of the roadway roof and the goaf roof, and make full use of the crushing and expansion of the goaf gangue to achieve goaf protection and coal pillar-free mining. This technology can realize the recovery of the section coal pillars left by the traditional coal mining method, significantly improve the mine resource recovery rate, reduce the 10,000-ton excavation rate, and effectively reduce the impact ground pressure, gas outburst, and large deformation of the roadway caused by the stress concentration of the coal pillar. At the same time, it changes the traditional ventilation method and realizes Y-type ventilation, which can well solve the problem of gas accumulation in the corners of the working face.

[0003] At present, the construction speed of coal tunnels along the goaf is slow, and the level of mechanization and automation is low. The top eye cutting and reinforcement anchor cable processes are realized by conventional bolting machine operation, and the materials are transported manually. The tunnel shaping is also dispatched by manual excavation and renovation according to specific needs. It takes a long time, requires a large number of personnel, has high labor intensity, and has low safety, which cannot meet the requirements of high production and high efficiency of mines. How to reduce personnel input, reduce the labor intensity of employees, improve the level of mechanization connection, and improve production efficiency is an urgent need for each coal mine to increase production efficiency. Utility Model Content

[0004] In view of the technical problems of low level of mechanized connection of lanes retained along the goaf and high labor intensity of employees, the utility model provides a comprehensive mechanized operation system for coal mine roof cutting and lane retaining, which uses an anchor cable drilling vehicle device to carry out anchor cable support, a hydraulic drilling vehicle device to carry out roof cutting operations, a monorail crane device to transport materials back and forth in the coal mine lanes, and a lane shaping vehicle device to dig grooves to relieve force and repair lanes. Mechanized connection can realize one-time completion of lanes without rework, release coal pillar mining, and reduce mining costs.

[0005] The utility model provides a comprehensive mechanized operation system for coal mine roof cutting and lane retention, comprising a running track installed on the top of the lane and running through the lane, a monorail hanging device installed on the running track, the monorail hanging device comprising a traction device, the traction device is provided with an air valve, the traction device is connected to a pneumatic hoist through a connecting rod, the bottom of the pneumatic hoist is connected to a lifting hook through a lifting chain, and a control handle is also provided on the pneumatic hoist;

[0006] An anchor cable drilling vehicle device, a hydraulic drilling vehicle device and a roadway shaping vehicle device are placed on the roadway floor in sequence;

[0007] The anchor drilling vehicle device comprises a crawler travel motor, a translation cylinder is arranged above the crawler travel motor, an anchor drilling vehicle housing is arranged above the translation cylinder, a control handle and a control arm are arranged on the anchor drilling vehicle housing, and an automatic anchor drilling arm is arranged at one end of the control arm;

[0008] The hydraulic drilling vehicle device comprises two crawler travel motors, a hydraulic drilling vehicle housing is mounted on the crawler travel motors, an oil cylinder and an operating handle device are arranged on the hydraulic drilling vehicle housing, the oil cylinder and the operating handle device are respectively connected to the middle section and the tail section of the drill rod, and a hydraulic motor is arranged on the drill rod;

[0009] The tunnel shaping vehicle device includes a crawler travel motor three, a shovel plate is installed in front of the crawler travel motor three, a tunnel shaping vehicle body is installed on the crawler travel motor three, a control handle and a working arm are arranged on the tunnel shaping vehicle body, a bucket is connected to the working arm, and the bucket and the shovel plate are on the same side of the crawler travel motor three.

[0010] Furthermore, the operating handle is connected to the pneumatic hoist through an air control line.

[0011] Furthermore, the number of lifting hooks is two.

[0012] Furthermore, the lifting hook includes a pneumatic hoist lifting hook and a special hook for containers.

[0013] Different lifting hooks can be replaced according to different materials.

[0014] Furthermore, the control handle of the anchor drilling vehicle device includes an action handle, an operating handle, a rotating handle and a clamping handle.

[0015] Furthermore, a drilling rod clamping mechanism is provided at one end of the automatic anchor drill arm, and a fixing rod is provided at the other end. When in use, the automatic anchor drill arm can rotate with the control arm connected to the automatic anchor drill arm as the axis, and the maximum rotation angle is 360°.

[0016] The drilling rod clamping mechanism facilitates the loading and unloading of the drilling rod and the guiding of the drilling rod. The fixing rod is fixed in contact with the bottom plate or the side wall in the direction relative to the drilling direction of the drilling rod, thereby improving the hole forming quality of the drilling rod and facilitating the subsequent installation of the directional blasting energy-gathering tube into the hole.

[0017] Furthermore, when in use, the working arm can rotate along the axis of the vehicle body, with a maximum rotation angle of 360°, a swing amplitude of ≥5000mm, and an up and down movement of ≤350mm.

[0018] The beneficial effects of the utility model are:

[0019] The utility model provides a comprehensive mechanized operation system for coal mine roof cutting and lane retention, which increases the economic and social benefits of the coal mine through the coordinated use of a monorail hanging device, an anchor cable drilling vehicle device, a hydraulic drilling vehicle device and a lane shaping vehicle device, solves the problems of slow efficiency and poor forming quality of lane retention construction along the goaf, reduces the labor intensity of employees, realizes mechanized connection of lane retention construction, and provides technical guarantee for extending the mine mining period and stabilizing economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 The utility model is a structural schematic diagram of a comprehensive mechanized operating system for coal mine top cutting and lane retention.

[0022] In the figure, 1-running track, 2-traction device, 3-pneumatic hoist, 4-lifting hook, 5-air valve, 6-control handle, 7-crawler travel motor 1, 8-control handle, 9-translation cylinder, 10-automatic anchor drill arm, 11-drill rod, 12-hydraulic motor, 13-cylinder, 14-operating handle device, 15-crawler travel motor 2, 16-working arm, 17-control handle, 18-bucket, 19-shovel board. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present invention, 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, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] Example 1

[0025] Reference Figure 1A comprehensive mechanized operating system for coal mine top cutting and lane retention, comprising a running track 1 installed on the top of the lane and running through the lane, a monorail hanging device installed on the running track 1, the monorail hanging device comprising a traction device 2, the traction device 2 is provided with an air valve 5, the traction device 2 is connected to a pneumatic hoist 3 through a connecting rod, the number of the pneumatic hoists 3 is two, the bottom of one of the pneumatic hoists is connected to a pneumatic hoist lifting hook through a lifting chain, the bottom of the other pneumatic hoist is connected to a container-specific hook through a lifting chain, and the pneumatic hoist 3 is connected to a control handle 6 through an air control line;

[0026] An anchor cable drilling vehicle device, a hydraulic drilling vehicle device and a roadway shaping vehicle device are placed on the roadway floor in sequence;

[0027] The anchor drilling vehicle device includes a crawler travel motor 7, a translation cylinder 9 is arranged above the crawler travel motor 7, an anchor drilling vehicle housing is arranged above the translation cylinder 9, a control handle 8 and two control arms are arranged on the anchor drilling vehicle housing, the control handle 8 includes an action handle, an operating handle, a rotation handle and a clamp handle, an automatic anchor drilling arm 10 is arranged at one end of the control arm, a drilling rod clamping mechanism is arranged at one end of the automatic anchor drilling arm 10, and a fixing rod is arranged at the other end. When in use, the automatic anchor drilling arm can rotate with the control arm connected to the automatic anchor drilling arm as the axis, and the maximum rotation angle is 360°;

[0028] The hydraulic drilling vehicle device includes a crawler travel motor 15, a hydraulic drilling vehicle housing is installed on the crawler travel motor 15, a cylinder 13 and an operating handle device are arranged on the hydraulic drilling vehicle housing, the cylinder 13 and the operating handle device 14 are respectively connected to the middle section and the tail section of the drill rod 11, and a hydraulic motor 12 is arranged on the drill rod 11;

[0029] The tunnel shaping vehicle device includes a crawler travel motor three, a shovel plate 19 is installed in front of the crawler travel motor three, a tunnel shaping vehicle body is installed on the crawler travel motor three, and a control handle 17 and a working arm 16 are arranged on the tunnel shaping vehicle body. When in use, the working arm can rotate along the axis of the vehicle body, the maximum rotation angle is 360°, the swing amplitude is ≥5000mm, and the up and down movement is ≤350mm. The bucket 18 is connected to the working arm 16, and the bucket 18 and the shovel plate 19 are on the same side of the crawler travel motor three.

[0030] When the comprehensive mechanized operation system for coal mine top cutting and lane retention is in operation, the anchor cable drilling vehicle device is responsible for driving anchor cables and anchor rods in the lane to provide reinforcement support. The operator manually operates the action handle to control the crawler travel motor 7 of the anchor cable drilling vehicle device to run in the lane, and the translation cylinder 9 adjusts the lifting position. The two control arms are regulated to work independently at the same time by the operating handle and the rotating handle. The clamp handle regulates the drilling rod clamping mechanism at one end of the automatic anchor rod drilling arm 10, and the drilling rod is installed on the automatic anchor rod drilling arm 10, which is convenient for loading and unloading the drilling rod and guiding the drilling rod. The operating handle controls the fixed rod at the other end of the automatic anchor drill arm 10. The fixed rod is fixed in contact with the bottom plate or side wall in the relative direction of the drilling direction of the drilling rod. The drill bit of the drilling rod is located on the tunnel cutting line and drills a hole with a depth of 300mm-400mm. The anchor drilling vehicle device can achieve one-key start and stop. No multiple people need to intervene. One person can complete the remote control operation. At the same time, it can drill holes in the entire tunnel in all directions at 360°. It has strong adaptability. One drill only takes one minute, which reduces the labor intensity of workers, improves construction efficiency by 30%, and reduces one person per shift.

[0031] The anchor drilling rig device completes the tunnel reinforcement support in the front, and the hydraulic drilling rig device follows closely behind. The operating handle device 14 controls the running speed of the crawler travel motor 2 15, lifts the cylinder 13 to the required working height, and the hydraulic motor 12 adjusts the angle of the vertical plane. After the angle is adjusted, it automatically locks. The drill rod 11 with a drill bit is responsible for evenly and continuously drilling the top cutting holes, and the spacing between the top cutting holes is 0.4 meters.

[0032] The anchor drilling rig device and the hydraulic drilling rig device are used in coordination with each other. The distance between the tunnel reinforcement anchor cable driven by the anchor drilling rig device and the top cutting eye driven by the hydraulic drilling rig device is between 1.2-1.5m. When the distance between the top cutting eye and the anchor cable support of the tunnel roof is less than 20cm, the hydraulic motor 12 is adjusted and the top cutting eye is driven at 80°-85°, which prevents the damage of the top cutting blasting to the roof support and improves the support efficiency of the tunnel retained along the air.

[0033] During the post-maintenance of leaving a tunnel along the goaf, the tunnel floor and both sides are easily deformed due to pressure. The tunnel shaping machine device runs after the anchor drilling vehicle device and the hydraulic drilling vehicle device to dig a pressure relief groove in the post-maintenance section to reduce the deformation of the bottom drum. The bucket 18 of the working arm 16 is controlled by the operating handle 17 to dig a groove with a depth of 1 meter and a width of 80 cm in the middle of the tunnel floor to release pressure and reduce tunnel deformation, avoiding secondary maintenance and renovation of the tunnel by personnel. Impurities such as broken rocks and floating coal generated in the process of digging the groove can be cleaned by the bucket 18 and the shovel plate 19, thereby leveling the tunnel and reducing manual labor.

[0034] The monorail crane device slides on the running track 1, and cooperates with the anchor cable drilling vehicle device, the hydraulic drilling vehicle device and the tunnel shaping vehicle device to transport materials and equipment. The traction device 2 realizes the operation and stop of the monorail crane device in the tunnel under the power of the air valve 5. When it is necessary to transport materials or equipment, the monorail crane device is controlled to stay on the upper part of the materials or equipment by operating the control handle 6. There are two pneumatic hoists 3 on the monorail crane device. Each pneumatic hoist 3 is connected to the lifting hook 4 through a lifting chain. After the lifting hook 4 firmly hangs the material or equipment, the control handle 6 is controlled to adjust the distance between the material or equipment and the bottom plate to 200-500mm; the safety distance between the monorail crane device and the two sides of the tunnel is not less than 300mm. The power effect of the air valve 5 is adjusted by operating the control handle 6, so that the monorail crane device can run smoothly on the running track 1 to transport materials or equipment to the destination for loading and unloading.

[0035] The monorail crane device can work freely in a variety of complex environments such as horizontal curves and pitches, realizing the rapid transportation of materials in the tunnel, avoiding the need for workers to lift or pull materials. Mechanical handling replaces physical labor, reducing the labor intensity of workers, increasing construction efficiency by five times, and reducing one person per shift.

[0036] In the comprehensive mechanized operation system of coal mine top cutting and lane retention, the coordinated use of monorail hanging device, anchor cable drilling vehicle device, hydraulic drilling vehicle device and lane shaping vehicle device has increased the economic and social benefits of coal mines. Compared with the conventional bolting machine used in the top cutting and reinforcement anchor cable process, the material transportation and lane shaping are carried out by manual transportation and construction, according to the calculation of improving the construction of lane retention along the air by 100m, 4,116 tons of coal resources are recovered, the direct investment in tunneling is reduced by 590,000 yuan, and the benefits of coal resources are recovered by 773,600 yuan, with a total economic benefit of 1,363,600 yuan, the investment cost of lane retention along the air is 290,600 yuan, and the net benefit is 1,073,000 yuan.

[0037] Although the present invention is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person skilled in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person skilled in the art who is familiar with the present technical field may easily think of changes or substitutions within the technical scope disclosed in the present invention, and these shall be within the scope of protection of the present invention.

Claims

1. A comprehensive mechanized operation system for coal mine top cutting and lane retaining, comprising a running track (1) installed on the top of the lane and running through the lane, characterized in that: A monorail hanging device is installed on the running track (1), the monorail hanging device comprises a traction device (2), the traction device (2) is provided with an air valve (5), the traction device (2) is connected to a pneumatic hoist (3) via a connecting rod, the bottom of the pneumatic hoist (3) is connected to a lifting hook (4) via a lifting chain, and the pneumatic hoist (3) is also provided with a control handle (6); An anchor cable drilling vehicle device, a hydraulic drilling vehicle device and a roadway shaping vehicle device are placed on the roadway floor in sequence; The anchor drilling vehicle device comprises a crawler travel motor (7), a translation cylinder (9) is arranged above the crawler travel motor (7), an anchor drilling vehicle housing is arranged above the translation cylinder (9), a control handle (8) and a control arm are arranged on the anchor drilling vehicle housing, and an automatic anchor drilling arm (10) is arranged at one end of the control arm; The hydraulic drilling vehicle device comprises a crawler travel motor (15) having a hydraulic drilling vehicle housing mounted on the crawler travel motor (15), a cylinder (13) and an operating handle device (14) being arranged on the hydraulic drilling vehicle housing, the cylinder (13) and the operating handle device (14) being connected to the middle section and the tail section of a drill rod (11) respectively, and a hydraulic motor (12) being arranged on the drill rod (11); The tunnel shaping vehicle device comprises a crawler travel motor three, a shovel plate (19) is installed at the front of the crawler travel motor three, a tunnel shaping vehicle body is installed on the crawler travel motor three, a control handle (17) and a working arm (16) are provided on the tunnel shaping vehicle body, a bucket (18) is connected to the working arm (16), and the bucket (18) and the shovel plate (19) are on the same side of the crawler travel motor three.

2. A comprehensive mechanized operation system for coal mine top cutting and lane retention as claimed in claim 1, characterized in that: The operating handle (6) is connected to the pneumatic hoist (3) via a pneumatic control line.

3. A comprehensive mechanized operation system for coal mine top cutting and lane retention as claimed in claim 1, characterized in that: The number of lifting hooks (4) is two.

4. A comprehensive mechanized operation system for coal mine top cutting and lane retention as claimed in claim 1, characterized in that: The lifting hook (4) includes a pneumatic hoist lifting hook and a special container hook.

5. A comprehensive mechanized operation system for coal mine top cutting and lane retention as claimed in claim 1, characterized in that: The control handle (8) of the anchor drilling vehicle device comprises an action handle, an operating handle, a rotating handle and a clamping handle.

6. A comprehensive mechanized operation system for coal mine top cutting and lane retention as claimed in claim 1, characterized in that: A drilling rod clamping mechanism is arranged at one end of the automatic anchor drill arm (10), and a fixing rod is arranged at the other end.

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