An intelligent side-wall coal shearer for coal mines

Abstract

The present invention discloses an intelligent side-wall coal shearer for coal mines, which includes a frame body and a collection bucket, a cutting device, a propulsion arm, a traveling device, a conveying device and a drive control device installed on the frame body; for the intelligent side-wall coal shearer provided by the present invention, the positions of the collection bucket and the cutting device are adjusted through the propulsion arm, and the coal mined by the cutting device can be directly collected and transported through the collection bucket. By controlling the telescopic length of the propulsion arm, the mining depth can be controlled, which helps to improve the recovery rate of the coal resources in the side coal pillar and the mining efficiency; moreover, the setting of the propulsion arm can limit the mining direction of the cutting device to prevent the occurrence of inclined mining. And through the setting of the traveling device, not only can the lateral movement distance of the frame body be accurately controlled, so as to conveniently control the safety width of the middle reserved coal pillar, but also through the setting of the traveling device, the position of the frame body can be locked to prevent the occurrence of device slippage and ensure the accuracy of the mining position.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining equipment, and particularly to an intelligent side-wall coal shearer for coal mines. Background Art

[0002] The open-pit coal mine side-wall mining technology is to maximize the extraction of the coal resources pressed by the side-wall under the premise of minimizing the damage to the surface rock and soil cover and ground vegetation.

[0003] Traditionally, the mining of the coal pressed by the side-wall of open-pit coal mines only relies on means such as manual cut-and-blast mining close to the coal wall, with low mining efficiency and poor safety. Although in the existing technologies, there are side-wall coal shearers used to mine the coal resources located at the edge of the open-pit mine, the existing side-wall coal shearers have limited mining depth and low recovery rate of the coal resources pressed by the side-wall; moreover, after the mining depth gradually increases, it is impossible to accurately ensure the safety width of the middle reserved coal pillar.

[0004] Therefore, there is an urgent need to provide an intelligent side-wall coal shearer for coal mines to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent side-wall coal shearer for coal mines to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above purpose, the present invention provides an intelligent side-wall coal shearer for coal mines, including a frame body and a collecting bucket, a cutting device, a propulsion arm, a traveling device, a conveying device and a drive control device installed on the frame body;

[0007] The collecting bucket is fixedly installed at the bottom of the frame body, and the collecting bucket is used for collecting and transporting coal;

[0008] The cutting device is installed at the top end of the collecting bucket, and the cutting device is used for coal mining;

[0009] The propulsion arm is installed at the bottom of the frame body, and the end of the propulsion arm is fixedly connected to the cutting device. The propulsion arm is used for adjusting the positions of the cutting device and the collecting bucket;

[0010] The traveling device is installed at the bottom of the frame body, and the traveling device is located below the collecting bucket. The traveling device is used for adjusting the position of the frame body;

[0011] The conveying device is installed at the bottom end of the frame body, and one end of the conveying device is correspondingly arranged with the discharge end of the collecting bucket;

[0012] The collecting bucket, the cutting device, the propulsion arm, the traveling device and the conveying device are all electrically connected to the drive control device.

[0013] Preferably, the collection bucket includes a chute fixedly installed at the bottom of the frame body. An outlet chute is arranged at the bottom of one end of the chute, and the conveying device is correspondingly arranged with the outlet chute; a feeding channel is slidably connected in the chute. The cutting device is installed at the top end of the feeding channel. The propulsion arm is fixedly arranged at one end of the chute close to the outlet chute, and the end of the propulsion arm is fixedly connected to the top of the feeding channel, and the propulsion arm is located above the outlet chute; one end of the feeding channel away from the propulsion arm is inclined downward, and a screw conveyor is installed inside the end of the feeding channel away from the propulsion arm. The drive motor of the screw conveyor is electrically connected to the drive control device.

[0014] Preferably, the cutting device includes a cutting arm hinged to the top end of the collection bucket. The cutting arm is a telescopic structure, and a cutting assembly is installed at the end of the cutting arm; a boom cylinder is hinged to the top end of the collection bucket, and the end of the boom cylinder is hinged to the outer cylinder of the cutting arm where the cutting assembly is installed; the cutting assembly is correspondingly arranged with the collection bucket, and both the boom cylinder and the cutting assembly are electrically connected to the drive control device.

[0015] Preferably, the cutting assembly includes a cutting drum installed on the cutting arm. A number of cutting teeth are fixedly installed on the outer wall of the cutting drum, and the drive motor of the cutting drum is electrically connected to the drive control device.

[0016] Preferably, the traveling device includes two parallel moving tracks. A slider is fixedly connected to the bottom end of the frame body, and the frame body is in limiting sliding fit with the moving tracks through the slider; a stop block is fixedly connected to one end of the moving track, and a stepping cylinder is hinged to the stop block. The end of the stepping cylinder is hinged to the slider corresponding to the stop block, and the stepping cylinder is electrically connected to the drive control device.

[0017] Preferably, a lifting cylinder is fixedly connected to the outer side wall of the slider. The bottom end of the lifting cylinder is fixedly connected with a backing plate. The lifting cylinder is used to lift the height of the frame body, and the lifting cylinder is electrically connected to the drive control device.

[0018] Preferably, it further includes:

[0019] A lifting device, the lifting device includes a slide rail fixedly installed on the top of the frame body. A moving frame is slidably connected to the slide rail. The middle of the bottom end of the moving frame is fixedly connected with a telescopic cylinder. The bottom end of the telescopic cylinder is fixedly connected with a lifting frame, and the telescopic cylinder is electrically connected to the drive control device.

[0020] Preferably, the feeding channel includes an inclined section and a plurality of horizontally arranged sections that are detachably connected in sequence. The inclined section is detachably connected to one of the horizontally arranged sections, and one end of the horizontally arranged section away from the inclined section is fixedly connected to the pushing arm. The auger is installed in the inclined section, and the cutting device is installed at the top of the horizontally arranged section connected to the inclined section.

[0021] Preferably, the conveying device includes a receiving plate fixedly connected to the bottom end of the frame body. One end of the receiving plate is hingedly installed with a scraper conveyor, and a motor is installed on the receiving plate for adjusting the inclination angle of the scraper conveyor.

[0022] Compared with the prior art, the present invention has the following advantages and technical effects:

[0023] The intelligent sidewall coal mining machine for coal mines provided by the present invention adjusts the positions of the collecting bucket and the cutting device through the pushing arm. The coal mined by the cutting device can be directly collected and transported through the collecting bucket. By controlling the telescopic length of the pushing arm, the mining depth can be controlled, which helps to improve the recovery rate of the coal resources in the sidewall coal pillar and the mining efficiency. Moreover, the setting of the pushing arm can limit the mining direction of the cutting device to prevent the occurrence of inclined mining. And through the setting of the traveling device, not only can the lateral moving distance of the frame body be accurately controlled, thus facilitating the control of the safe width of the middle reserved coal pillar, but also the position of the frame body can be locked through the setting of the traveling device to prevent the occurrence of device slippage and ensure the accuracy of the mining position. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of the intelligent sidewall coal mining machine for coal mines of the present invention without a lifting oil cylinder;

[0026] Figure 2 It is a schematic structural diagram of the intelligent sidewall coal mining machine for coal mines of the present invention with a lifting oil cylinder;

[0027] In the figure: 1, frame; 2, propulsion arm; 3, drive control device; 4, chute; 5, discharge chute; 6, feed channel; 7, auger; 8, cutting arm; 9, boom cylinder; 10, cutting drum; 11, cutting teeth; 12, moving track; 13, slider; 14, stop block; 15, stepping cylinder; 16, lifting cylinder; 17, backing plate; 18, slide rail; 19, moving frame; 20, telescopic cylinder; 21, lifting hook; 22, receiving plate; 23, scraper conveyor; 24, motor. Detailed implementation manner

[0028] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] As Figure 1 and Figure 2 shown, the present invention provides an intelligent side-wall coal shearer for coal mines, including a frame 1 and a collection bucket, a cutting device, a propulsion arm 2, a traveling device, a conveying device and a drive control device 3 installed on the frame 1;

[0030] The collection bucket is fixedly installed at the bottom of the frame 1, and the collection bucket is used for the collection and transfer of coal;

[0031] The cutting device is installed at the top of the collection bucket, and the cutting device is used for coal mining;

[0032] The propulsion arm 2 is installed at the bottom of the frame 1, and the end of the propulsion arm 2 is fixedly connected to the cutting device. The propulsion arm 2 is used to adjust the positions of the cutting device and the collection bucket;

[0033] The traveling device is installed at the bottom of the frame 1, and the traveling device is located below the collection bucket. The traveling device is used to adjust the position of the frame 1;

[0034] The conveying device is installed at the bottom end of the frame 1, and one end of the conveying device is correspondingly arranged with the discharge end of the collection bucket;

[0035] The collection bucket, the cutting device, the propulsion arm 2, the traveling device and the conveying device are all electrically connected to the drive control device 3.

[0036] In the present invention, the position of the collecting bucket and the cutting device is adjusted by the propulsion arm 2. The coal mined by the cutting device can be directly collected and transported through the collecting bucket. By controlling the telescopic length of the propulsion arm 2, the mining depth can be controlled, which helps to improve the recovery rate of the coal resources in the side coal pillar and the mining efficiency. Moreover, the setting of the propulsion arm 2 can limit the mining direction of the cutting device to prevent the occurrence of inclined mining. And through the setting of the traveling device, not only can the lateral movement distance of the frame body 1 be accurately controlled, thus facilitating the control of the safety width of the middle reserved coal pillar, but also the position of the frame body 1 can be locked through the setting of the traveling device to prevent the occurrence of device slippage and ensure the accuracy of the mining position.

[0037] In a further optimized solution, to facilitate the control of the moving direction of the collecting bucket, the collecting bucket includes a chute 4 fixedly installed at the bottom of the frame body 1. An outlet chute 5 is arranged at the bottom of one end of the chute 4, and the conveying device is correspondingly arranged with the outlet chute 5; a feeding channel 6 is slidably connected in the chute 4, and the cutting device is installed at the top end of the feeding channel 6. The propulsion arm 2 is fixedly arranged at one end of the chute 4 close to the outlet chute 5, and the end of the propulsion arm 2 is fixedly connected to the top of the feeding channel 6, and the propulsion arm 2 is located above the outlet chute 5; one end of the feeding channel 6 away from the propulsion arm 2 is inclined downward, and a screw conveyor 7 is installed inside the end of the feeding channel 6 away from the propulsion arm 2. The drive motor 24 of the screw conveyor 7 is electrically connected to the drive control device 3.

[0038] In a further optimized solution, to facilitate the adjustment of the mining position of the cutting device, the cutting device includes a cutting arm 8 hinged to the top end of the collecting bucket. The cutting arm 8 is a telescopic structure, and a cutting assembly is installed at the end of the cutting arm 8; a boom cylinder 9 is hinged to the top end of the collecting bucket, and the end of the boom cylinder 9 is hinged to the outer cylinder of the cutting arm 8 where the cutting assembly is installed; the cutting assembly is correspondingly arranged with the collecting bucket, and both the boom cylinder 9 and the cutting assembly are electrically connected to the drive control device 3.

[0039] In a further optimized solution, the cutting assembly includes a cutting drum 10 installed on the cutting arm 8. A plurality of cutting teeth 11 are fixedly installed on the outer wall of the cutting drum 10, and the drive motor 24 of the cutting drum 10 is electrically connected to the drive control device 3.

[0040] In a further optimized solution, to facilitate the movement of the frame body 1, the traveling device includes two parallel moving tracks 12. A slider 13 is fixedly connected to the bottom end of the frame body 1, and the frame body 1 is in limit sliding fit with the moving tracks 12 through the slider 13; a stop block 14 is fixedly connected to one end of the moving track 12, a stepping cylinder 15 is hinged to the stop block 14, and the end of the stepping cylinder 15 is hinged to the slider 13 corresponding to the stop block 14. The stepping cylinder 15 is electrically connected to the drive control device 3.

[0041] For a further optimized solution, to achieve the overall horizontal movement of the frame 1, a lifting oil cylinder 16 is fixedly connected to the outer side wall of the slider 13. The bottom end of the lifting oil cylinder 16 is fixedly connected with a backing plate 17. The lifting oil cylinder 16 is used to lift the height of the frame 1, and the lifting oil cylinder 16 is electrically connected to the drive control device 3.

[0042] For a further optimized solution, when the frame 1 moves integrally, to prevent the friction between the conveying device and the ground, it further includes:

[0043] A hoisting device, which includes a slide rail 18 fixedly installed on the top of the frame 1. A moving frame 19 is slidably connected to the slide rail 18. The middle of the bottom end of the moving frame 19 is fixedly connected with a telescopic cylinder 20. The bottom end of the telescopic cylinder 20 is fixedly connected with a hoisting frame 21. The telescopic cylinder 20 is electrically connected to the drive control device 3.

[0044] For a further optimized solution, to increase the mining depth, the feed channel 6 includes an inclined section and a number of horizontally arranged sections that are detachably connected in sequence. The inclined section is detachably connected to one of the horizontally arranged sections at one end. The end of the horizontally arranged section away from the inclined section is fixedly connected to the propulsion arm 2. The auger 7 is installed in the inclined section, and the cutting device is installed at the top of the horizontally arranged section connected to the inclined section.

[0045] For a further optimized solution, to facilitate the output of coal, the conveying device includes a receiving plate 22 fixedly connected to the bottom end of the frame 1. One end of the receiving plate 22 is hingedly installed with a scraper conveyor 23. A motor 24 is installed on the receiving plate 22, and the motor 24 is used to adjust the inclination angle of the scraper conveyor 23.

[0046] The working principle of the intelligent sidewall coal miner for coal mines provided by the present invention:

[0047] During use, by controlling the extension of the lifting oil cylinder 16, the frame 1 and the moving track 12 at the bottom of the frame 1 are disengaged from the ground. Then, the position of the moving track 12 is adjusted by the stepping oil cylinder 15. After the position of the moving track 12 is aligned with the mining face, the lifting oil cylinder 16 is controlled to shorten, so that the moving track 12 contacts the ground again. Then, by controlling the telescoping of the stepping oil cylinder 15, the relative position between the frame 1 and the moving track 12 can be adjusted, thereby realizing the position adjustment of the cutting device. Then, the propulsion arm 2 is controlled to extend, and the inclination angle of the cutting drum 10 is adjusted by the boom oil cylinder 9 to facilitate coal mining. While the propulsion arm 2 extends, the collecting bucket also slides out. The auger 7 is used to collect and convey the mined coal. When the maximum stroke of the propulsion arm 2 cannot meet the propulsion requirement, first control the propulsion arm 2 to shorten, and use the feeding channel 6 to push the coal in the chute 4 into the discharge chute 5. Then, control the propulsion arm 2 to extend to the maximum stroke, disconnect the connection between the propulsion arm 2 and the feeding channel 6, and control the propulsion arm 2 to shorten. At the same time, use the lifting device to hoist a horizontal section of the feeding channel 6 to the space between the propulsion arm 2 and the existing feeding channel 6. After completing the connection of the horizontal section with the existing feeding channel 6 and the propulsion arm 2, control the propulsion arm 2 to extend again to increase the mining depth of the cutting device. The mined coal moves to the chute 4 through the auger 7 and the feeding channel 6, and falls onto the conveying device through the discharge chute 5 on the chute 4, realizing the collection and transportation of the mined coal.

[0048] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. An intelligent side-wall coal mining machine for coal mines, characterized in that: It comprises a frame (1) and a collecting bucket, a cutting device, a propulsion arm (2), a walking device, a conveying device and a driving control device (3) installed on the frame (1); The collecting bucket is fixedly mounted on the bottom of the frame (1), and is used for collecting and transporting coal; The cutting device is installed at the top of the collecting bucket, and the cutting device is used for coal mining; The propulsion arm (2) is installed at the bottom of the frame (1), the end of the propulsion arm (2) is fixedly connected to the cutting device, and the propulsion arm (2) is used to adjust the position of the cutting device and the collecting bucket; The walking device is installed at the bottom of the frame (1), and the walking device is located below the collecting bucket, and the walking device is used to adjust the position of the frame (1); The walking device comprises two parallel movable rails (12); a slider (13) is fixedly connected to the bottom end of the frame (1); the frame (1) is limitedly slidably matched with the movable rail (12) through the slider (13); a stopper (14) is fixedly connected to one end of the movable rail (12); a stepping cylinder (15) is hingedly connected to the stopper (14); the end of the stepping cylinder (15) is hingedly connected to the slider (13) corresponding to the stopper (14); and the stepping cylinder (15) is electrically connected to the driving control device (3); A lifting cylinder (16) is fixedly connected to the outer wall of the sliding block (13), a pad (17) is fixedly connected to the bottom end of the lifting cylinder (16), the lifting cylinder (16) is used to lift the frame (1), and the lifting cylinder (16) is electrically connected to the driving control device (3); The conveying device is installed at the bottom end of the frame (1), and one end of the conveying device is arranged corresponding to the discharge end of the collecting bucket; The collecting bucket, the cutting device, the propulsion arm (2), the walking device and the conveying device are all electrically connected to the drive control device (3).

2. The intelligent side-wall coal mining machine for coal mines according to claim 1, characterized in that: The collecting bucket comprises a slide groove (4) fixedly mounted at the bottom of the frame (1), a discharge groove (5) being arranged at the bottom of one end of the slide groove (4), and the conveying device is arranged corresponding to the discharge groove (5); a feed channel (6) is slidably connected in the slide groove (4), the cutting device is installed at the top of the feed channel (6), the propulsion arm (2) is fixedly arranged at one end of the slide groove (4) close to the discharge groove (5), the end of the propulsion arm (2) is fixedly connected to the top of the feed channel (6), and the propulsion arm (2) is located above the discharge groove (5); the feed channel (6) is arranged to be tilted downward at one end away from the propulsion arm (2), and an auger (7) is installed on the inner side of one end of the feed channel (6) away from the propulsion arm (2), and the drive motor (24) of the auger (7) is electrically connected to the drive control device (3).

3. The intelligent side-wall coal mining machine for coal mines according to claim 1, characterized in that: The cutting device comprises a cutting arm (8) hinged on the top of the collecting bucket, the cutting arm (8) is a telescopic structure, and a cutting assembly is installed at the end of the cutting arm (8); a boom cylinder (9) is hinged on the top of the collecting bucket, and the end of the boom cylinder (9) is hinged to the outer tube of the cutting arm (8) on which the cutting assembly is installed; the cutting assembly is arranged corresponding to the collecting bucket, and the boom cylinder (9) and the cutting assembly are both electrically connected to the drive control device (3).

4. The intelligent side-wall coal mining machine for coal mines according to claim 3 is characterized in that: The cutting assembly comprises a cutting drum (10) mounted on the cutting arm (8), a plurality of cutting teeth (11) being fixedly mounted on the outer wall of the cutting drum (10), and a driving motor (24) of the cutting drum (10) being electrically connected to the driving control device (3).

5. The intelligent side-wall coal mining machine for coal mines according to claim 2, characterized in that: Also includes: A lifting device, the lifting device comprising a slide rail (18) fixedly mounted on the top of the frame (1), a movable frame (19) being slidably connected to the slide rail (18), a telescopic cylinder (20) being fixedly connected to the middle of the bottom end of the movable frame (19), a lifting frame (21) being fixedly connected to the bottom end of the telescopic cylinder (20), and the telescopic cylinder (20) being electrically connected to the drive control device (3).

6. The intelligent side-wall coal mining machine for coal mines according to claim 5, characterized in that: The feed channel (6) comprises an inclined section and a plurality of horizontal sections which are detachably connected in sequence, the inclined section being detachably connected to the horizontal section at one end, the end of the horizontal section away from the inclined section being fixedly connected to the propulsion arm (2), the auger (7) being installed in the inclined section, and the cutting device being installed at the top end of the horizontal section connected to the inclined section.

7. The intelligent side-wall coal mining machine for coal mines according to claim 5, characterized in that: The conveying device comprises a receiving plate (22) fixedly connected to the bottom end of the frame (1), a scraper (23) being hingedly mounted on one end of the receiving plate (22), a motor (24) being mounted on the receiving plate (22), and the motor (24) being used to adjust the inclination angle of the scraper (23).

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