Coal mining machine with adjustable coal mining depth

Abstract

The utility model discloses a coal mining machine with adjustable coal mining depth, which relates to the technical field of coal mining machines, and comprises a walking seat, an adjusting arm and a cutting disc, movable seats are symmetrically inserted in the walking seat, a mounting seat is arranged on the upper sides of the movable seats, the top of the mounting seat is connected with the adjusting arm, and one end of the adjusting arm is provided with the cutting disc. According to the coal mining machine with the adjustable coal mining depth, the cutting direction of the cutting disc can be adjusted through the protection seat and the rotating seat, so that the cutting disc is better driven by the adjusting arm to cut a coal seam at different depths, and the cutting position of the cutting disc can be further adjusted, so that the cutting depth of the coal seam is adjusted again; according to the coal mining machine with the adjustable coal mining depth, the problems that an existing coal mining machine can only drive the cutting roller to conduct vertical cutting, and the cutting mode of the cutting roller on a coal seam cannot be adjusted according to the coal mining depth are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal winning machine technical field, concretely is a coal winning machine of coal winning depth adjustable. BACKGROUND

[0002] The coal winning machine is the core mechanical equipment of coal mine exploitation, is mainly used for realizing the efficient stripping and automatic loading of coal through cutting, crushing and the like, and is used for completing continuous exploitation operation in cooperation with the conveying system, and as the key equipment of coal mine mechanization and intelligent exploitation, the coal winning machine is directly related to coal winning efficiency, safety and resource utilization, and is the core equipment of modern mine construction.

[0003] According to the coal winning machine of adjustable coal winning depth of the announcement number CN111188615B, two turntables are fixed on the machine body, a rotary arm is rotationally connected to the turntable, a counterweight box is fixed to one end of the rotary arm, an installation box body is rotationally connected to the other end of the rotary arm, a rocker arm is rotationally connected to the end of the installation box body away from the counterweight box, and a cutting drum is rotationally connected to the end of the rocker arm away from the installation box body, so that the cutting drum can rotate and be angle-adjusted in the vertical plane and the horizontal plane, and the mining depth and angle of the cutting drum in the horizontal and vertical directions are changed.

[0004] But the above-mentioned coal winning machine can only drive the cutting drum to cut vertically, and cannot adjust the cutting mode of the cutting drum to the coal seam according to the depth of coal winning, so that the single cutting direction leads to great limitation of the coal winning machine when coal winning, and affects the progress of coal winning work. Utility model content

[0005] The utility model aims at providing a coal winning machine of adjustable coal winning depth to solve the problem that the existing coal winning machine can only drive the cutting drum to cut vertically and cannot adjust the cutting mode of the cutting drum to the coal seam according to the depth of coal winning.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a coal winning machine of adjustable coal winning depth, including a walking seat, an adjusting arm and a cutting disc, the inside of the walking seat is symmetrically inserted with a moving seat, the upper side of the moving seat is provided with a mounting seat, the top of the mounting seat is connected with the adjusting arm, one end of the adjusting arm is provided with the cutting disc, the cutting disc is connected with a driving motor through a shaft coupling in the middle, and the upper side of the mounting seat is connected with a control box.

[0007] The end close to the cutting disc of the adjusting arm is connected with a protection seat, a servo motor and a hydraulic rod are arranged in the protection seat, a rotating seat is rotatably connected to the middle of the protection seat, one end of the rotating seat is connected with a limiting disc, the output end of the servo motor is connected with the limiting disc through a shaft coupling, limiting grooves are equidistantly arranged in the limiting disc, one end of the hydraulic rod is connected with a limiting block, and the outer side of the limiting block is inserted into the limiting groove, and one side of the driving motor one is connected with the rotating seat.

[0008] Preferably, the bottom of the mounting seat is rotatably connected with the moving seat through a bearing seat, and the lower side of the mounting seat is connected with a driven gear.

[0009] Preferably, the outer side of the driven gear is engaged with a driving gear, a driving motor two is arranged in the moving seat, and the output end of the driving motor two is connected with the driving gear through a shaft coupling.

[0010] Preferably, the moving seat is screw-connected with a bidirectional adjusting screw through screw holes, and the two ends of the bidirectional adjusting screw are rotatably connected with the walking seat through bearing seats.

[0011] Preferably, a transmission gear is arranged in the middle of the bidirectional adjusting screw, the bottom of the transmission gear is engaged with a driving gear, and a stepping motor is arranged in the walking seat.

[0012] Preferably, the output end of the stepping motor is connected with the driving gear through a shaft coupling, and hydraulic push rods are symmetrically arranged in the walking seat.

[0013] Preferably, plug-in grooves are symmetrically arranged in the walking seat, plug-in rods are connected with the bottoms of the hydraulic push rods, and the bottoms of the plug-in rods are inserted into the plug-in grooves on the adjacent side.

[0014] Compared with the prior art, the coal mining machine with adjustable coal mining depth has the advantages that the cutting direction of the cutting disc can be adjusted through the protection seat and the rotating seat, so that the adjusting arm can better drive the cutting disc to cut the coal seam at different depths, and the cutting position of the cutting disc can be further adjusted, so that the cutting depth of the coal seam can be adjusted again, and the problem that the existing coal mining machine can only drive the cutting drum to cut vertically and cannot adjust the cutting mode of the cutting drum according to the coal mining depth is solved.

[0015] 1. The coal mining machine with adjustable coal mining depth, in order to adjust the cutting direction of the cutting disc according to the required cutting depth of the coal seam, a hydraulic rod is started, the hydraulic rod drives the limiting block to disengage from the insertion of the limiting groove, a servo motor is started, the output end of the servo motor drives the limiting disc and the rotating seat to rotate, and then the hydraulic rod is started again, the limiting block is pushed to be inserted into the limiting groove again, at this time, the adjusting arm can be started to drive the cutting disc to cut the coal seam at different depths in the correct cutting direction, the coal mining depth of the coal mining machine can be adjusted, the cutting direction of the cutting disc can be adjusted through the protection seat and the rotating seat, so that the adjusting arm can better drive the cutting disc to cut the coal seam at different depths;

[0016] 2. The coal mining machine with adjustable coal mining depth, in order to further adjust the cutting depth of the coal seam, a stepping motor is started, the output end of the stepping motor drives the driving gear to rotate and engage with the transmission gear through the shaft coupling, so as to drive the bidirectional adjusting screw connected in the middle of the transmission gear to rotate, and the thread hole in the moving seat is screwed to drive the moving seat, the mounting seat and the adjusting arm to drive the cutting disc to move to the coal seam, thereby realizing the adjustment of the cutting depth of the coal seam, the cutting position of the cutting disc can be further adjusted, so as to realize the re-adjustment of the cutting depth of the coal seam. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the coal mining machine of the utility model;

[0018] Figure 2 It is a three-dimensional sectional structure schematic diagram of the protection seat of the utility model;

[0019] Figure 3 It is a three-dimensional sectional structure schematic diagram of the walking seat of the utility model;

[0020] Figure 4 It is a three-dimensional structure schematic diagram of the transmission gear of the utility model.

[0021] In the drawing: 1, walking seat; 2, moving seat; 201, mounting seat; 202, adjusting arm; 203, cutting disc; 204, driving motor one; 205, control box; 206, driven gear; 207, driving gear; 208, driving motor two; 3, protection seat; 301, rotating seat; 302, limiting disc; 303, servo motor; 304, limiting groove; 305, limiting block; 306, hydraulic rod; 4, bidirectional adjusting screw; 401, transmission gear; 402, driving gear; 403, stepping motor; 404, hydraulic push rod; 405, insertion rod; 406, insertion groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0023] Please refer to Figure 1 and Figure 2 The utility model provides a kind of technical scheme: a coal mining machine with adjustable coal mining depth, including walking seat 1, adjusting arm 202 and cutting disc 203, the inside symmetry of walking seat 1 is inserted with moving seat 2, the upper side of moving seat 2 is provided with mounting seat 201, the top of mounting seat 201 is connected with adjusting arm 202, one end of adjusting arm 202 is provided with cutting disc 203, the middle part of cutting disc 203 is connected with driving motor one 204 by coupling, the upper side of mounting seat 201 is connected with control box 205, the bottom of mounting seat 201 is rotatably connected with moving seat 2 by bearing seat, and the lower side of mounting seat 201 is connected with driven gear 206, the outside of driven gear 206 is engaged with driving gear 207, driving motor two 208 is installed in the inside of moving seat 2, the output end of driving motor two 208 is connected with driving gear 207 by coupling;

[0024] The end of adjusting arm 202 close to cutting disc 203 is connected with protective seat 3, servo motor 303 and hydraulic rod 306 are installed in the inside of protective seat 3, rotary seat 301 is rotatably connected in the middle part of protective seat 3, and one end of rotary seat 301 is connected with limit disc 302, the output end of servo motor 303 is connected with limit disc 302 by coupling, limit groove 304 is equidistantly opened in the inside of limit disc 302, one end of hydraulic rod 306 is connected with limit block 305, and the outside of limit block 305 is inserted with limit groove 304, one side of driving motor one 204 is connected with rotary seat 301.

[0025] In practice, to facilitate the adjustment of the cutting direction of the cutting disc 203 according to the required cutting depth of the coal seam, the hydraulic rod 306 connected inside the protective seat 3 is activated. The hydraulic rod 306 drives the limiting block 305, which is inserted into the limiting groove 304 inside the limiting disc 302, to move until the limiting block 305 is completely disengaged from the limiting groove 304. Then, the servo motor 303 installed inside the protective seat 3 is activated. The output end of the servo motor 303 drives the limiting disc 302 and the rotating seat 301 connected to the limiting disc 302 to rotate through the shaft coupling. The hydraulic rod 306 is restarted, pushing the limit block 305 to engage with the limit groove 304 inside the limit plate 302 again, limiting the limit plate 302 and the rotating seat 301. At this time, the adjusting arm 202 can be started to drive the cutting plate 203 to cut the coal seam to different depths in the correct cutting direction. This coal mining machine with adjustable mining depth can adjust the cutting direction of the cutting plate 203 through the protective seat 3 and the rotating seat 301, so that the adjusting arm 202 can better drive the cutting plate 203 to cut the coal seam to different depths.

[0026] See Figure 1 , Figure 3 and Figure 4 It is known that both movable seats 2 are threadedly connected to bidirectional adjusting screws 4 through threaded holes, and both ends of the bidirectional adjusting screws 4 are rotatably connected to the walking seat 1 through bearing seats. A transmission gear 401 is installed in the middle of the bidirectional adjusting screws 4, and the bottom of the transmission gear 401 meshes with the drive gear 402. A stepper motor 403 is installed inside the walking seat 1, and the output end of the stepper motor 403 is connected to the drive gear 402 through a coupling. Hydraulic push rods 404 are symmetrically installed inside the walking seat 1, and insertion slots 406 are symmetrically opened inside the walking seat 1. An insertion rod 405 is connected to the bottom of the hydraulic push rod 404, and the bottom of the insertion rod 405 is inserted into the insertion slot 406 on the adjacent side.

[0027] In particular, to further adjust the cutting depth of the coal seam, the step motor 403 installed in the walking seat 1 is started, the output end of the step motor 403 drives the driving gear 402 to rotate through the shaft coupling, the driving gear 402 is in mesh with the transmission gear 401 when rotating, thereby driving the bidirectional adjusting screw 4 connected to the middle part of the transmission gear 401 to rotate, the bidirectional adjusting screw 4 is in threaded action with the threaded hole in the inside of the moving seat 2 when rotating, thereby driving the moving seat 2 to move along the groove in the inside of the walking seat 1, thereby driving the mounting seat 201 and the adjusting arm 202 on the upper side of the moving seat 2 to drive the cutting disc 203 to move to the coal seam, thereby realizing the adjustment of the cutting depth of the coal seam, and the hydraulic push rod 404 installed in the walking seat 1 is started, the hydraulic push rod 404 bottom pushes the plug-in rod 405 to move downward along the plug-in groove 406, and is plugged with the ground at the bottom of the walking seat 1, thereby limiting the position of the walking seat 1, the coal mining machine with adjustable coal mining depth can further adjust the cutting position of the cutting disc 203, thereby realizing the re-adjustment of the cutting depth of the coal seam.

[0028] In summary, when the coal mining machine with adjustable coal mining depth is used, the step motor 403 is started, the output end of the step motor 403 drives the driving gear 402 to rotate through the shaft coupling and is in mesh with the transmission gear 401, thereby driving the bidirectional adjusting screw 4 connected to the middle part of the transmission gear 401 to rotate and in threaded action with the threaded hole in the inside of the moving seat 2, thereby driving the moving seat 2, the mounting seat 201 and the adjusting arm 202 to drive the cutting disc 203 to move to the coal seam, after that, the drive motor two 208 in the inside of the moving seat 2 is started through the control box 205, the output end of the drive motor two 208 drives the driving gear 207 to rotate through the shaft coupling and is in mesh with the driven gear 206 at the lower side of the mounting seat 201, thereby driving the adjusting arm 202 and the cutting disc 203 to adjust the working direction, after the adjustment is completed, the drive motor one 204 is started, the output end of the drive motor one 204 drives the cutting disc 203 to cut the coal seam through the shaft coupling, and the contents not described in detail in the description belong to the prior art known by the professional technical personnel in the field.

[0029] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A coal mining machine with adjustable mining depth, comprising a walking base (1), an adjusting arm (202) and a cutting disc (203), characterized in that: The walking seat (1) is symmetrically inserted with a moving seat (2), the upper side of the moving seat (2) is provided with a mounting seat (201), the top of the mounting seat (201) is connected with an adjusting arm (202), one end of the adjusting arm (202) is provided with a cutting disc (203), the middle part of the cutting disc (203) is connected with a driving motor (204) through a shaft coupling, and the upper side of the mounting seat (201) is connected with a control box (205). The end of the adjusting arm (202) close to the cutting disc (203) is connected with a protection seat (3), the inside of the protection seat (3) is mounted with a servo motor (303) and a hydraulic rod (306), the middle part of the protection seat (3) is rotatably connected with a rotating seat (301), one end of the rotating seat (301) is connected with a limiting disc (302), the output end of the servo motor (303) is connected with the limiting disc (302) through a shaft coupling, a limiting groove (304) is equidistantly formed in the limiting disc (302), one end of the hydraulic rod (306) is connected with a limiting block (305), and the outer side of the limiting block (305) is inserted with the limiting groove (304), and one side of the driving motor (204) is connected with the rotating seat (301).

2. A shearer with adjustable cutting height according to claim 1, characterized in that: The bottom of the mounting seat (201) is rotatably connected with the moving seat (2) through a bearing seat, and the lower side of the mounting seat (201) is connected with a driven gear (206).

3. A shearer with adjustable cutting height according to claim 2, characterized in that: The outer side of the driven gear (206) is engaged with a driving gear (207), the inside of the moving seat (2) is mounted with a driving motor (208), and the output end of the driving motor (208) is connected with the driving gear (207) through a shaft coupling.

4. A shearer with adjustable cutting height according to claim 3, characterized in that: The inside of the two moving seats (2) is threadedly connected with a bidirectional adjusting screw (4) through screw holes, and the two ends of the bidirectional adjusting screw (4) are rotatably connected with the walking seat (1) through bearing seats.

5. A shearer with adjustable cutting height according to claim 4, characterized in that: The middle part of the bidirectional adjusting screw (4) is mounted with a transmission gear (401), the bottom of the transmission gear (401) is engaged with a driving gear (402), and the inside of the walking seat (1) is mounted with a stepping motor (403).

6. A shearer with adjustable cutting height according to claim 5, characterized in that: The output end of the stepping motor (403) is connected with the driving gear (402) through a shaft coupling, and the inside of the walking seat (1) is symmetrically mounted with a hydraulic push rod (404).

7. A shearer with adjustable cutting height according to claim 6, characterized in that: The inside of the walking seat (1) is symmetrically provided with an insertion groove (406), the bottom of the hydraulic push rod (404) is connected with an insertion rod (405), and the bottom of the insertion rod (405) is inserted with the insertion groove (406) on the adjacent side.

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