Coal mining roof cutting and pressure releasing device

Abstract

The utility model discloses a coal mining cuts top pressure relief equipment belongs to coal mining equipment technical field, including support seat, is fixedly connected with support on support seat, is provided with hydraulic rod in support, and the working end of hydraulic rod is fixedly connected with the bearing frame, and is connected with the drilling assembly on the bearing frame, is seted up in the storage groove in support seat, and the sliding plate is slidably arranged in the storage groove, and the wheel body is connected below the sliding plate, and the dust cover is seted up below support, and dust cover corresponds with drilling assembly, and the dust absorption machine is fixedly connected with the side wall of support seat, and the working end of dust absorption machine is communicated with dust cover, and the bearing frame is connected with dust cover through elastic sliding component. The present application can conveniently store the wheel body, thereby can guarantee the stability of equipment work, and simultaneously, the dust cover is connected with the bearing frame, can utilize the feeding of hydraulic rod when drilling, makes dust cover synchronous movement, thereby quickly completes the installation and disassembly of dust cover.

Description

TECHNICAL FIELD

[0001] The utility model provides a coal mining cuts top pressure relief equipment belongs to coal mining equipment technical field especially relates to a kind of drilling equipment for coal mining cuts top pressure relief. BACKGROUND

[0002] Coal mining cuts top pressure relief technology is a kind of technology for coal mining process in underground, by cutting top and pressure relief to control and reduce roof pressure. Main purpose is in coal mining process, roof is handled in advance, reduces the risk of roof collapse, to improve the safety and production efficiency of mine.

[0003] And in cutting top pressure relief technology, drilling equipment is a kind of often used equipment, for drilling on roof, by controlling drilling position and depth, can provide conditions for subsequent blasting, to complete cutting top pressure relief work;However, a large amount of dust is generated when drilling, which affects the construction environment;Existing technology usually sets up shielding component to reduce dust scattering;However, shielding component often needs to be completely surrounded by drill bit to achieve good dust reduction effect, for this type of shielding component, before drilling, it needs to be installed first, and then disassembled after drilling, which is inconvenient to install and disassemble;At the same time, the existing drilling equipment is usually provided with a wheel body for easy movement, which can easily affect the stability of the drilling equipment during work. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problems that the dust reduction effect of the drilling equipment used in coal mining is not good, the installation and disassembly of the dust cover are troublesome, and the stability of the drilling equipment during work is easily affected due to the presence of the wheel body.

[0005] The utility model solves the above problems by providing a coal mining cuts top pressure relief equipment, which comprises a support seat, a support connected to the support seat, a hydraulic rod arranged in the support, and

[0006] A bearing frame and a drilling assembly are arranged on the working end of the hydraulic rod, the bearing frame is connected to the drilling assembly, a receiving groove is formed in the support seat, a sliding plate is slidably arranged in the receiving groove, and a wheel body is connected to the lower side of the sliding plate.

[0007] A dust cover and a dust collector are arranged below the support, the dust cover corresponds to the drilling assembly, the side wall of the support seat is fixedly connected to the dust collector, the working end of the dust collector is in communication with the dust cover, and the bearing frame is connected to the dust cover through an elastic sliding assembly.

[0008] As improved, the drilling assembly comprises a rotating motor, a drill rod and a drill bit, the rotating motor is fixedly arranged in a bearing frame, and the drill rod is fixedly connected to an output shaft of the rotating motor; the drill bit is fixedly connected with the drill rod, and a dust cover is slidably arranged relative to the drill rod, and the drill bit is located in the dust cover.

[0009] As improved, the elastic sliding assembly comprises a fixed rod and a spring, the fixed rod is fixedly connected to the dust cover, a scale is arranged on the fixed rod, and the fixed rod slides through the bearing frame; the spring is located between the bearing frame and the dust cover, and the spring is sleeved on the fixed rod.

[0010] As improved, a limiting block is arranged on the bearing frame, and the limiting block is fixedly connected with the fixed rod; a dust suction pipe is connected to the working end of the dust suction machine, the dust suction pipe is a flexible pipe, and the dust suction pipe is communicated with the dust cover.

[0011] As improved, an adjusting motor is arranged on the support base, a screw rod rotatingly arranged in a receiving groove is fixedly connected to an output shaft of the adjusting motor; the sliding plate is threadedly connected to the screw rod.

[0012] As improved, the receiving groove is a cuboid structure, the sliding plate is a cuboid structure corresponding to the receiving groove, and the sliding plate and the inner wall of the receiving groove are mutually attached; two adjusting motors are arranged, the two adjusting motors are completely same, and the two adjusting motors are synchronously controlled by the same circuit.

[0013] The utility model discloses the beneficial effect:

[0014] 1, the working end of the hydraulic rod is fixedly connected with a bearing frame, and the bearing frame is connected with the dust cover through an elastic sliding assembly; connecting the dust cover with the bearing frame, utilizing the feeding work of the hydraulic rod, the dust cover can be driven synchronously to move, thereby quickly completing the installation and dismounting of the dust cover.

[0015] 2, a receiving groove is arranged in the support base, a sliding plate is slidably arranged in the receiving groove, and a wheel body is connected below the sliding plate; by arranging the wheel body below the slidable sliding plate, the wheel body can be conveniently stored, and when the equipment does not need to be moved, the wheel body is stored into the receiving groove, thereby guaranteeing the stability of the equipment work. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the coal mining top cutting pressure relief equipment.

[0017] Figure 2 It is a perspective view of the coal mining top cutting pressure relief equipment from another angle.

[0018] Figure 3 It is a partial sectional view of the coal mining top cutting pressure relief equipment.

[0019] Figure 4 This is a cross-sectional view of the support base of a coal mining roof cutting and pressure relief device according to the present invention.

[0020] 1. Support base; 2. Bracket; 3. Hydraulic rod; 4. Rotary motor; 5. Bearing frame; 6. Drill rod; 7. Vacuum cleaner; 8. Dust cover; 9. Suction pipe; 10. Storage slot; 11. Wheel; 12. Limiting block; 13. Fixing rod; 14. Spring; 15. Drill bit; 16. Adjusting motor; 17. Lead screw; 18. Sliding plate. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] according to Figures 1-4 As shown: This utility model provides a coal mining roof cutting and pressure relief device, including a support base 1, on which a bracket 2 is fixedly connected; a hydraulic rod 3 is installed inside the bracket 2; and also includes:

[0023] The bearing frame 5 and the drilling assembly are fixedly connected to the working end of the hydraulic rod 3. The drilling assembly is connected to the bearing frame 5. The support base 1 has a storage groove 10. A sliding plate 18 is slidably arranged in the storage groove 10. A wheel 11 is connected below the sliding plate 18.

[0024] Dust cover 8 and vacuum cleaner 7 are provided. Dust cover 8 is provided below the bracket 2 and corresponds to the drilling assembly. Vacuum cleaner 7 is fixedly connected to the side wall of support base 1. The working end of vacuum cleaner 7 is connected to dust cover. Carrying frame 5 is connected to dust cover 8 through elastic sliding assembly.

[0025] like Figure 1 , 3 As shown, the drilling assembly includes a rotary motor 4, a drill rod 6, and a drill bit 15. The rotary motor 4 is fixedly installed inside the bearing frame 5, and the drill rod 6 is fixedly connected to the output shaft of the rotary motor 4. The drill bit 15 is fixedly connected to the drill rod 6, and the dust cover is slidably installed relative to the drill rod 6. The drill bit 15 is located inside the dust cover 8, which can provide good protection for the drill bit 15 and prevent dust from spreading and affecting the environment.

[0026] like Figure 3As shown, the elastic sliding assembly includes a fixed rod 13, a spring 14, the fixed rod 13 is fixedly connected to the dust cover 8, the fixed rod 13 is provided with a scale, and the fixed rod 13 slides through the bearing frame 5; by observing the scale change of the fixed rod 13, the staff can conveniently monitor the drilling depth; the spring 14 is located between the bearing frame 5 and the dust cover 8, and the spring 14 is sleeved on the fixed rod 13. The bearing frame 5 is provided with a limiting block 12, and the limiting block 12 is fixedly connected with the fixed rod 13, which can prevent the dust cover from being separated from the bearing frame 5; the working end of the dust collector 7 is connected with a dust suction pipe 9, and the dust suction pipe 9 is communicated with the dust cover 8; the dust suction pipe 9 is a long enough hose, which can ensure that the dust cover 8 can still be communicated with the dust collector 7 during the sliding process, so that the dust collector 7 and the dust suction pipe 9 can play a dust-reducing role on the dust in the dust cover 8.

[0027] As shown in Figure 4 , the support seat 1 is provided with an adjusting motor 16, and the output shaft of the adjusting motor 16 is fixedly connected with a screw rod 17 rotatingly arranged in the storage groove 10. The sliding plate 18 is threadedly connected to the screw rod 17. The storage groove 10 is a cuboid structure, and the sliding plate 18 is a cuboid structure corresponding to the storage groove 10, and the sliding plate 18 and the inner wall of the storage groove 10 are mutually attached, which can limit the rotation of the sliding plate 18, so as to convert the rotation of the screw rod 17 into the movement of the sliding plate 18. The adjusting motor 16 is provided with two, the two adjusting motors 16 are completely same, and the two adjusting motors 16 are synchronously controlled by the same circuit, which can ensure the consistency of the movement of all the wheel bodies 11.

[0028] The principle of the utility model

[0029] As shown in Figure 1 , 2 , in use of the present application, the wheel body 11 is located in the storage groove 10, the support seat 1 is in contact with the ground, so as to ensure the stability of the equipment during the drilling work. Start the hydraulic rod 3, drive the bearing frame 5, the drill rod 6 and the dust cover 8 to move downward, at the same time, start the rotating motor 4 to drive the drill rod 6 and the drill bit 15 to rotate, as shown in Figure 3 , when the dust cover 8 and the drill bit 15 are in contact with the ground at the same time, with the continuous work of the hydraulic rod 3, the rotating drill bit 15 drills into the ground, and is blocked by the ground, the dust cover 8 remains stationary, which can play a role in all-round dust reduction around the drill bit 15; at the same time, when the bearing frame 5 moves downward, the spring 14 can be compressed, so that the spring 14 generates a rebound force, which increases the stability of the dust cover 8 and the ground. At the same time, start the dust collector 7, and use the dust collector 7 and the dust suction pipe 9 to suck the dust in the dust cover 8. When the drilling is finished, use the hydraulic rod 3 to drive the bearing frame 5 to move upward, and take out the drill bit 15, which can also make the dust cover 8 separate from the ground, and quickly complete the disassembly of the dust cover 8.

[0030] AsFigure 4 As shown, when the mobile device is needed, two adjusting motors 16 are started at the same time, the lead screw 17 is rotated, the sliding plate 18 drives the wheel body 11 to move downwards until the wheel body 11 is exposed from the storage groove 10, the wheel body 11 replaces the support seat 1 to contact the ground, thereby facilitating the movement of the whole device.

[0031] The above describes the utility model and its implementation mode, which is not restrictive, and the drawings shown are only one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structure modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A coal mining top cutting pressure releasing device, comprising a supporting seat (1), a support (2) is fixedly connected on the supporting seat (1); a hydraulic rod (3) is arranged in the support (2); characterized in that, Also include: The working end of the hydraulic rod (3) is fixedly connected with a bearing frame (5), and the bearing frame (5) is connected with a drilling assembly; a receiving groove (10) is formed in the support base (1), and a sliding plate (18) is slidably arranged in the receiving groove (10); a wheel body (11) is connected below the sliding plate (18); A dust cover (8) and a dust collector (7) are arranged below the support (2), and the dust cover (8) corresponds to the drilling assembly; a dust collector (7) is fixedly connected to the side wall of the support base (1), and the working end of the dust collector (7) is in communication with the dust cover; the bearing frame (5) is connected with the dust cover (8) through an elastic sliding assembly.

2. The coal mining roof cutting and pressure releasing apparatus according to claim 1, characterized in that: The drilling assembly includes a rotating motor (4), a drill rod (6) and a drill bit (15), the rotating motor (4) is fixedly arranged in the bearing frame (5), and the drill rod (6) is fixedly connected to the output shaft of the rotating motor (4); the drill bit (15) is fixedly connected with the drill rod (6), the dust cover is slidably arranged relative to the drill rod (6), and the drill bit (15) is located in the dust cover (8).

3. A coal extraction roof cutting and pressure releasing apparatus according to claim 2, characterized in that: The elastic sliding assembly includes a fixed rod (13) and a spring (14), the fixed rod (13) is fixedly connected to the dust cover (8), a scale is arranged on the fixed rod (13), and the fixed rod (13) slides through the bearing frame (5); the spring (14) is located between the bearing frame (5) and the dust cover (8), and the spring (14) is sleeved on the fixed rod (13).

4. A coal extraction roof cutting and pressure releasing apparatus according to claim 3, characterized in that: A limiting block (12) is arranged on the bearing frame (5), and the limiting block (12) is fixedly connected with the fixed rod (13); the working end of the dust collector (7) is connected with a dust collection pipe (9), the dust collection pipe (9) is a flexible pipe, and the dust collection pipe (9) is in communication with the dust cover (8).

5. The coal mining roof cutting and pressure releasing apparatus according to claim 1, characterized in that: An adjusting motor (16) is arranged on the support base (1), a screw rod (17) is fixedly connected to the output shaft of the adjusting motor (16) and rotatably arranged in the receiving groove (10); the sliding plate (18) is threadedly connected to the screw rod (17).

6. A coal extraction roof cutting pressure releasing apparatus according to claim 5, characterized in that: The receiving groove (10) is a cuboid structure, the sliding plate (18) is a cuboid structure corresponding to the receiving groove (10), and the sliding plate (18) and the inner wall of the receiving groove (10) are mutually attached; the adjusting motor (16) is provided with two, the two adjusting motors (16) are completely same, and the two adjusting motors (16) are synchronously controlled by the same circuit.

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