Mechanical top cutting equipment for fully-mechanized face dynamic pressure area

Abstract

The utility model discloses mechanical roof cutting equipment for a fully mechanized face dynamic pressure area, which comprises a vehicle body, a crawler walking assembly used for driving the vehicle body to move is arranged at the bottom end of the vehicle body, a working mechanism is arranged at the front end of the vehicle body, and the working mechanism comprises a drilling assembly and a stroke compensation assembly. The working mechanism is connected with the vehicle body through a stroke compensation assembly and comprises a vertical beam, a hydraulic clamp holder, a power head and a longitudinal thrust oil cylinder. Wherein a translation track is arranged at the front end of the vertical beam, the thrust oil cylinder is contained in the lower side of the translation track, a sliding plate capable of sliding along the translation track is arranged at the telescopic end of the longitudinal thrust oil cylinder, and the power head is installed at the front end of the sliding plate. A pressure sensor is arranged between the sliding plate and the telescopic end of the longitudinal thrust oil cylinder and used for monitoring pressure change data during roof cutting pressure relief.

Description

Technical Field

[0001] This utility model belongs to the technical field of underground coal mining equipment, specifically a mechanical roof cutting device for the dynamic pressure zone of a fully mechanized mining face. Background Technology

[0002] Fully mechanized mining faces often employ automated mining, intelligent control, and high-efficiency coal mining techniques to improve mining efficiency, while using various methods to ensure operational safety during the mining process. Among these, roof cutting and pressure relief technology is a crucial safety measure for personnel and equipment underground. Currently, roof cutting drill rigs are mainly used to achieve roof cutting and pressure relief operations in fully mechanized mining faces.

[0003] Existing coal mine roof cutting drilling rigs include a main body, a traveling assembly, a drilling assembly, and an electrical and hydraulic system. When performing roof cutting and depressurization, existing roof cutting drilling rigs use the traveling assembly to move to the corresponding roof cutting position and then use the drill rod to perform the roof cutting operation. Since the working conditions and pressure changes at different roof positions in the fully mechanized mining face are different, safety risks are likely to occur when directly cutting the roof to relieve pressure.

[0004] In view of this, a mechanical roof cutting device for the dynamic pressure zone of a fully mechanized mining face is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a mechanical roof-cutting device for the dynamic pressure zone of a fully mechanized mining face in order to solve the problems mentioned above.

[0006] The technical solution adopted by this utility model is as follows: A mechanical roof cutting device for the dynamic pressure zone of a fully mechanized mining face includes a vehicle body. The bottom end of the vehicle body is provided with a tracked walking assembly for driving its movement. The front end of the vehicle body is provided with a working mechanism. The working mechanism includes a drilling assembly and a stroke compensation assembly. The working mechanism is connected to the vehicle body via the stroke compensation assembly. The working mechanism includes a vertical beam, a hydraulic clamp, a power head, and a longitudinal propulsion cylinder. The front end of the vertical beam is provided with a translation track. The propulsion cylinder is housed inside the lower side of the translation track. The telescopic end of the longitudinal propulsion cylinder is provided with a sliding plate that can slide along the translation track. The power head is installed at the front end of the sliding plate. A pressure sensor is provided between the sliding plate and the telescopic end of the longitudinal propulsion cylinder for monitoring pressure change data during roof cutting and pressure relief.

[0007] In a preferred embodiment, a chuck for fixing the drill rod is provided at the top of the power head, and a hydraulic clamp coaxial with the chuck is also installed on the upper front side of the vertical beam.

[0008] In a preferred embodiment, the stroke compensation component includes a horizontal rotary drive, the vehicle body is mounted on the vehicle body, and a lateral thrust cylinder is installed at the front end of the rotating part of the horizontal rotary drive for adjusting the lateral position of the drilling component.

[0009] In a preferred embodiment, the stroke compensation component further includes a vertical rotary drive, which is installed at the telescopic end of the transverse propulsion cylinder. The rotating part of the vertical rotary drive is equipped with a longitudinal rotary drive, and the back of the vertical beam is provided with an ear seat connected to the rotating part of the longitudinal rotary drive.

[0010] In a preferred embodiment, the vehicle body is further provided with a hydraulic pump station and an electrical control box, and the working mechanism and the tracked walking assembly are both controlled by the electrical control box.

[0011] In a preferred embodiment, the vehicle body has lower hydraulic support frames extending vertically downward at its four corners, and upper hydraulic support frames extending vertically upward are symmetrically provided on both sides of the top of the vehicle body.

[0012] In a preferred embodiment, both the lower hydraulic support frame and the upper hydraulic support frame have pressure plates at their extended ends, and a second pressure sensor electrically connected to the electrical control box is embedded in the outer end face of the pressure plate.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this utility model, a pressure sensor for monitoring the cutting pressure is designed in the drilling assembly. It can monitor the pressure change data during the cutting and depressurization in real time, thereby achieving precise and efficient cutting. It can ensure that the pressure released from the top plate at each position is basically consistent, and can ensure the quality of cutting and depressurization.

[0015] In this invention, an upper support portion and a lower support portion are designed at the upper and lower ends of the vehicle body, respectively. The upper support portion and the lower support portion are in contact with the tunnel roof and the ground, respectively, thereby improving the overall stability of the vehicle body during operation. In addition, they can also play a role in supporting the roof to improve the safety of operation. Attached Figure Description

[0016] Figure 1 This is a frontal plan view of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the planar structure of the working mechanism in this utility model;

[0018] Figure 3 This is a side view of the drilling assembly in this utility model.

[0019] Figure 4 This is a cross-sectional planar structural diagram of the pressure plate of this utility model.

[0020] The markings in the diagram are: 1-tracked walking assembly, 2-vehicle body, 3-hydraulic pump station, 4-upper hydraulic support frame, 5-lower hydraulic support frame, 6-working mechanism, 601-horizontal slewing drive, 602-lateral propulsion cylinder, 603-longitudinal slewing drive, 604-power head, 605-chuck, 606-slide plate, 607-vertical beam, 608-translation track, 609-hydraulic gripper, 610-longitudinal propulsion cylinder, 611-pressure sensor, 612-longitudinal slewing drive, 7-electrical control box, 8-pressure plate, 801-second pressure sensor. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0022] Reference Figure 1-4 A mechanical roof cutting device for the dynamic pressure zone of a fully mechanized mining face includes a vehicle body 2. The bottom end of the vehicle body 2 is provided with a tracked walking assembly 1 for driving its movement. The tracked walking assembly 1 can drive the vehicle body 2 to the desired position (moving and transporting it to the connection between the underground working face and the mining roadway during drilling), which makes the vehicle body 2 more maneuverable and the drilling operation range wider.

[0023] Among them, the tracked walking assembly 1 is a well-known existing technology, and its specific structure will not be described.

[0024] Specifically, the front end of the vehicle body 2 is provided with a working mechanism 6, which includes a drilling assembly and a stroke compensation assembly. The working mechanism 6 is connected to the vehicle body 2 via the stroke compensation assembly. The working mechanism 6 includes a vertical beam 607, a hydraulic clamp 609, a power head 604, and a longitudinal propulsion cylinder 610. The front end of the vertical beam 607 is provided with a translation rail 608. The propulsion cylinder 610 is housed inside the lower side of the translation rail 608. The telescopic end of the longitudinal propulsion cylinder 610 is provided with a sliding plate 606 that can slide along the translation rail 608. The power head 604 is installed at the front end of the sliding plate 606. A pressure sensor 611 is provided between the sliding plate 606 and the telescopic end of the longitudinal propulsion cylinder 610 to monitor the pressure change data during top cutting and pressure relief. The top of the power head 604 is provided with a chuck 605 for fixing the drill rod (not shown in the figure). The upper front end of the vertical beam 607 is also provided with a hydraulic clamp 609 coaxial with the chuck 605.

[0025] Furthermore, the stroke compensation component includes a horizontal rotary drive 601, which is mounted on the vehicle body 2. A transverse thrust cylinder 602 is installed at the front end of the rotating part of the horizontal rotary drive 601 to adjust the transverse position of the drilling component. The stroke compensation component also includes a vertical rotary drive 603, which is installed at the telescopic end of the transverse thrust cylinder 602. A longitudinal rotary drive 612 is installed on the rotating part of the vertical rotary drive 603. The back of the upright beam 607 is provided with an ear seat connected to the rotating part of the longitudinal rotary drive 612. The transverse thrust cylinder 602 and the longitudinal thrust cylinder 610 can also adjust the transverse position and vertical thrust depth of the drilling, so that drilling operations at multiple holes can be achieved without adjusting the position of the vehicle body.

[0026] Among them, rotary drive and propulsion cylinder are technologies that have already been realized, and will not be elaborated on here.

[0027] Furthermore, the vehicle body 2 is also equipped with a hydraulic pump station 3 and an electrical control box 7, and the working mechanism 6 and the tracked walking assembly 1 are both controlled by the electrical control box 7.

[0028] Furthermore, lower hydraulic support frames 5 extend vertically downwards from the four corners of the vehicle body 2, and upper hydraulic support frames 4 extend vertically upwards symmetrically from both sides of the top of the vehicle body 2. Upper hydraulic support frames 4 and lower hydraulic support frames 5 are designed at the upper and lower ends of the vehicle body, respectively. The upper hydraulic support frames 4 and lower hydraulic support frames 5 are in contact with the tunnel roof and the ground, respectively, thereby improving the overall stability of the vehicle body during operation. Secondly, they can also play a role in supporting the roof, thereby improving the safety of operation.

[0029] Furthermore, both the lower hydraulic support frame 5 and the upper hydraulic support frame 4 are provided with pressure plates 8 at their extended ends, and a second pressure sensor 801 that is electrically connected to the electrical control box 7 is embedded on the outer end face of the pressure plate 8.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mechanical roof-cutting device for the dynamic pressure zone of a fully mechanized mining face, characterized in that, The system includes a vehicle body, with a tracked walking assembly at the bottom for driving its movement. A working mechanism is located at the front of the vehicle body, comprising a drilling assembly and a stroke compensation assembly. The working mechanism is connected to the vehicle body via the stroke compensation assembly. The working mechanism includes a vertical beam, a hydraulic clamp, a power head, and a longitudinal propulsion cylinder. The front end of the vertical beam has a translation track, and the propulsion cylinder is housed inside the lower side of the translation track. The telescopic end of the longitudinal propulsion cylinder has a sliding plate that can slide along the translation track. The power head is mounted at the front end of the sliding plate. A pressure sensor is located between the sliding plate and the telescopic end of the longitudinal propulsion cylinder to monitor pressure changes during top cutting and pressure relief.

2. The mechanical roof-cutting equipment for the dynamic pressure zone of a fully mechanized mining face as described in claim 1, characterized in that: The top of the power head is equipped with a chuck for fixing the drill rod, and a hydraulic clamp coaxial with the chuck is also installed on the upper front side of the vertical beam.

3. The mechanical roof-cutting equipment for the dynamic pressure zone of a fully mechanized mining face as described in claim 1, characterized in that: The stroke compensation component includes a horizontal rotary drive, the vehicle body is mounted on the vehicle body, and the front end of the rotating part of the horizontal rotary drive is equipped with a lateral propulsion cylinder for adjusting the lateral position of the drilling component.

4. The mechanical roof-cutting equipment for the dynamic pressure zone of a fully mechanized mining face as described in claim 3, characterized in that: The stroke compensation component also includes a vertical rotary drive, which is installed at the telescopic end of the transverse propulsion cylinder. The rotating part of the vertical rotary drive is equipped with a longitudinal rotary drive, and the back of the vertical beam is provided with an ear seat connected to the rotating part of the longitudinal rotary drive.

5. The mechanical roof-cutting equipment for the dynamic pressure zone of a fully mechanized mining face as described in claim 1, characterized in that: The vehicle body is also equipped with a hydraulic pump station and an electrical control box, and the working mechanism and tracked walking assembly are both controlled by the electrical control box.

6. The mechanical roof-cutting equipment for the dynamic pressure zone of a fully mechanized mining face as described in claim 5, characterized in that: The vehicle body has lower hydraulic support frames extending vertically downwards at its four corners, and upper hydraulic support frames extending vertically upwards are symmetrically arranged on both sides of the top of the vehicle body.

7. The mechanical roof-cutting equipment for the dynamic pressure zone of a fully mechanized mining face as described in claim 6, characterized in that: Both the lower hydraulic support frame and the upper hydraulic support frame have pressure plates at their extended ends, and a second pressure sensor that is electrically connected to the electrical control box is embedded on the outer end face of the pressure plate.

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