阅读说明：本技术 采煤机滚筒自动调高系统 (Automatic height-adjusting system for coal mining machine roller ) 是由 崔超超 于 2020-03-04 设计创作，主要内容包括：本发明公开了一种采煤机滚筒自动调高系统,包括机架、设置在机架上方的活动架、安装在活动架上的滚筒本体和设置在机架内部的PLC编程控制器,活动架的底端通过转轴连接机架一端,该转轴上安装有角度传感器,角度传感器电连接PLC编程控制器；滚筒本体靠近机架的一侧固定转动柱,转动柱远离滚筒本体的一端安装在升降板上,升降板的前后侧均设置齿条,且齿条分别设置在升降板的外沿处,升降板的两侧均设置固定架,固定架两侧面均设置开口槽,固定架内均设置有两组升降机构,升降板的两侧分别伸入两个固定架向内一侧的开口槽内。(The invention discloses an automatic height adjusting system for a roller of a coal mining machine, which comprises a rack, a movable frame arranged above the rack, a roller body arranged on the movable frame and a P L C programming controller arranged in the rack, wherein the bottom end of the movable frame is connected with one end of the rack through a rotating shaft, an angle sensor is arranged on the rotating shaft, the angle sensor is electrically connected with the P L C programming controller, a rotating column is fixed on one side of the roller body close to the rack, one end of the rotating column, far away from the roller body, is arranged on a lifting plate, racks are arranged on the front side and the rear side of the lifting plate and are respectively arranged at the outer edge of the lifting plate, fixing frames are respectively arranged on the two sides of the lifting plate, open slots are respectively arranged on the two sides of the fixing frames, two groups of lifting mechanisms are respectively arranged in the fixing frames, and.)

1. The automatic heightening system for the roller of the coal mining machine comprises a rack (1), a movable frame (2) arranged above the rack (1), a roller body (3) arranged on the movable frame (2) and a P L C programming controller arranged inside the rack (1), and is characterized in that the bottom end of the movable frame (2) is connected with one end of the rack (1) through a rotating shaft, one end of the rotating shaft is fixedly arranged to penetrate through the rack (1), an angle sensor (11) is arranged on the rotating shaft, the angle sensor (11) is electrically connected with the P L C programming controller through a data wire, a rotating column (26) is fixed on one side, close to the rack (1), of the roller body (3), one end, far away from the roller body (3), of the rotating column (26) is arranged on a lifting plate (17), racks (25) are arranged on the front side and the rear side of the lifting plate (17), the racks (25) are respectively arranged at the outer edge of the lifting plate (17), two sides of the lifting plate (17) are respectively provided with fixed frames (12), two side faces of the fixed frames (12) are respectively provided with a open slot (20), and two sets of the lifting mechanisms (20) extend into two sets of the lifting plate (17) symmetrically.

2. The shearer drum automatic height adjustment system of claim 1, wherein: this pivot's this end is fixed with gear (4) No. one, one side of gear (4) is provided with No. two gear (5), gear (4) and No. two gear (5) are connected through chain (6) No. two, No. two gear (5) are fixed on the connecting axle, and the inside one end of this connecting axle is passed through the bearing and is installed in frame (1), and the outside one end of this connecting axle is fixed with driven gear (7) No. one, one side of driven gear (7) is provided with driving gear (8) No. one, driving gear (8) are connected with driven gear (7) through No. two chain (9), driving gear (8) are fixed on the output shaft of a servo motor (10), just servo motor (10) are installed in frame (1).

3. The shearer drum automatic height adjustment system of claim 1, wherein: the lifting mechanisms comprise a plurality of driving gears (21), the driving gears (21) are meshed with racks (25) on the lifting plate (17), one side of the driving gear (21) far away from the lifting plate (17) is provided with a transmission gear (22), all the transmission gears (22) are connected through a third chain (23), the driving gear (21) and the corresponding transmission gear (22) are both fixed on the rotating rod (24), one side of one of the transmission gears (22) is provided with a second servo motor (16), the second servo motor (16) is arranged on the inner wall of the fixed frame (12), the output shaft of the second servo motor (16) is connected with a corresponding rotating rod (24) through a coupling, the other end of the rotating rod (24) and the two ends of the other rotating rods (24) are both arranged on the inner wall of the fixed frame (12) through bearings.

4. The shearer drum automatic height adjustment system of claim 1, wherein: both sides face of lifter plate (17) all is fixed with a plurality of slider (15), the position that corresponds slider (15) on the inner wall of adjustable shelf (2) all is provided with slide rail (13), lifter plate (17) reciprocate along slide rail (13) through slider (15).

5. The automatic coal cutter drum height adjusting system according to claim 1, characterized in that the lower end surface of the lifting plate (17) is connected with the bottom end of the movable frame (2) through an expansion bracket (18), the lower part of the lifting plate (17) is provided with a detected element (19), a displacement sensor (14) is installed at the bottom of the movable frame (2) corresponding to the detected element (19), and the displacement sensor (14) is electrically connected with a P L C programming controller through a data lead.

6. The shearer drum automatic height adjustment system of claim 1, wherein: rotate the post (26) and keep away from the one end of cylinder body (3) and pass through the bearing and install on lifter plate (17), be fixed with No. two driven gear (27) on rotating post (26), one side of No. two driven gear (27) is provided with No. two driving gear (28), No. two driven gear (27) and No. two driving gear (28) are connected through No. four chains (29), No. two driving gear (28) are fixed on the output shaft of No. three servo motor (30), install on lifter plate (17) No. three servo motor (30).

Technical Field

The invention relates to a height adjusting system, in particular to an automatic height adjusting system for a coal mining machine roller.

Background

The coal mining machine is a large complex system integrating machinery, electricity and hydraulic pressure, the working environment is severe, and if a fault occurs, the whole coal mining work is interrupted, so that huge economic loss is caused. The machine is used for cutting bottom slots on the coal face of a common medium and small-sized mine underground slow-dip thin coal seam and an extremely thin composite coal seam, and achieves the effect of cutting and coal falling.

The drum is a component on the coal mining machine, and the height of the drum needs to be adjusted when the drum works. At present, the height adjustment mode is manually adjusted, and a worker visually checks the position of the roller and then adjusts the roller to a proper position. The adjustment of the adjustment mode is not accurate enough, which leads to the reduction of the coal mining efficiency, and for this reason, improvement is needed.

Disclosure of Invention

The invention aims to provide an automatic height-adjusting system for a roller of a coal mining machine, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the automatic height adjusting system for the roller of the coal mining machine comprises a rack, a movable frame arranged above the rack, a roller body arranged on the movable frame and a P L C programming controller arranged inside the rack, wherein the bottom end of the movable frame is connected with one end of the rack through a rotating shaft, one end of the rotating shaft is fixedly arranged to penetrate through the rack, an angle sensor is arranged on the rotating shaft and is electrically connected with the P L C programming controller through a data wire, a rotating column is fixed on one side, close to the rack, of the roller body, one end, far away from the roller body, of the rotating column is arranged on a lifting plate, racks are arranged on the front side and the rear side of the lifting plate and are respectively arranged at the outer edge of the lifting plate, fixing frames are arranged on two sides of the lifting plate, open slots are arranged on two side faces of the fixing frames, two groups of symmetrical lifting mechanisms are arranged in the fixing frames, and two sides of the lifting plate respectively extend into the open.

As a further scheme of the invention: the utility model discloses a servo motor, including a servo motor, a connecting axle, a driven gear, a driving gear, a driven gear, a servo motor, a chain, a connecting axle, a driven gear, a driving gear, a bearing, a driven gear, a driving gear, a servo motor's output shaft, a servo motor installs in the frame, a gear is fixed with the gear to the this end of this pivot, one side of a gear and No. two gears is connected through No. two chains, one side of a gear is provided with a driven gear, No. one the driving gear is connected with a driven gear through No. two chains, a driving gear is fixed on a servo motor's output shaft, just.

As a further scheme of the invention: this elevating system all includes a plurality of drive gear, the rack mesh on drive gear and the lifter plate mutually, one side that the lifter plate was kept away from to drive gear all is provided with the conveying gear, and all conveying gears all are connected through No. three chains, drive gear all fixes on the dwang rather than the conveying gear that corresponds, and one side of one of them conveying gear is provided with servo motor No. two, servo motor No. two is installed on the inner wall of mount, servo motor's output shaft passes through coupling joint rather than the dwang that corresponds, and the other end of this dwang and the both ends of all the other dwang are all installed on the inner wall of mount through the bearing.

As a further scheme of the invention: the two side faces of the lifting plate are fixed with a plurality of sliding blocks, sliding rails are arranged on the inner wall of the movable frame and correspond to the sliding blocks, and the lifting plate moves up and down along the sliding rails through the sliding blocks.

According to a further scheme of the invention, the lower end face of the lifting plate is connected with the bottom end of the movable frame through an expansion frame, the lower part of the lifting plate is provided with a detected element, the bottom part of the movable frame is provided with a displacement sensor at a position corresponding to the detected element, and the displacement sensor is electrically connected with a P L C programming controller through a data lead.

As a further scheme of the invention: the roller body is installed on the lifting plate through a bearing in one end of the rotating column, a second driven gear is fixed on the rotating column, a second driving gear is arranged on one side of the second driven gear, the second driven gear and the second driving gear are connected through a fourth chain, the second driving gear is fixed on an output shaft of a third servo motor, and the third servo motor is installed on the lifting plate.

Compared with the prior art, the invention has the beneficial effects that:

1. the first gear is connected with the second gear through the first chain by arranging the first gear and the second gear, then the first driven gear is arranged on one side of the second gear, the first driving gear is arranged on one side of the first driven gear, the first driving gear is connected with the first driven gear through the second chain, the first driving gear can rotate to drive the first driven gear to rotate, the first driven gear rotates to drive the second gear to rotate, then the second gear drives the first chain to move, then the first chain moves to drive the first gear to rotate, the first gear rotates to drive the rotating shaft to rotate, thereby driving the movable frame to move, the height of the roller body can be changed through the rotation of the movable frame, the effect of adjusting the height of the roller body is conveniently achieved, in addition, an angle sensor is arranged on the rotating shaft, the angle sensor detects the inclined angle, the height of the roller body is convenient to control, and the adjustment accuracy is improved;

2. the lifting mechanism and the lifting plate are arranged in the movable frame, and then the plurality of driving gears and the transmission gears are arranged in the lifting mechanism, the second servo motor can drive the rotating rod fixedly connected with the second servo motor to rotate, so that the rotating rod rotates to drive the transmission gear fixedly connected with the second servo motor to rotate, and further, the third chain outside the transmission gear is driven to move, the third chain moves to drive other transmission gears to rotate, other transmission gears rotate to drive other rotating rods to rotate, all rotating rods are rotated, all driving gears are rotated to drive racks on the lifting plate to move up and down, and therefore the lifting plate can move up and down to drive the fixing columns to move, and the effect of driving the roller body to move up and down is achieved; then a detected element is arranged at the lower part of the lifting plate, a displacement sensor is arranged at the bottom of the movable frame, and the height of the roller body which is lifted can be detected through the displacement sensor, so that the height of the roller can be accurately adjusted.

Drawings

Fig. 1 is an overall structural view of an automatic drum height adjusting system of a coal mining machine according to the present invention;

fig. 2 is an internal structural view of a movable frame of the automatic drum height adjusting system of the coal mining machine of the present invention;

FIG. 3 is a side view of the lift mechanism of the shearer drum automatic height adjustment system of the present invention;

FIG. 4 is a side view of the mounting bracket of the automatic shearer drum height adjustment system of the present invention;

FIG. 5 is a front view of the lift mechanism of the automatic shearer drum height adjustment system of the present invention;

fig. 6 is an installation view of a drum body of the automatic drum height adjustment system for a shearer of the present invention;

fig. 7 is a front view of the lifter plate of the shearer drum automatic height adjustment system of the present invention.

Reference numerals:

1. the automatic detection device comprises a rack, 2 a movable frame, 3 a roller body, 4 a first gear, 5 a second gear, 6 a first chain, 7 a first driven gear, 8 a first driving gear, 9 a second chain, 10 a first servo motor, 11 an angle sensor, 12 a fixed frame, 13 a sliding rail, 14 a displacement sensor, 15 a sliding block, 16 a second servo motor, 17 a lifting plate, 18 an expansion frame, 19 a detected element, 20 an open slot, 21 a driving gear, 22 a transmission gear, 23 a third chain, 24 a rotating rod, 25 a rack, 26 a rotating column, 27 a second driven gear, 28 a second driving gear, 29 a fourth chain and 30 a third servo motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, in the embodiment of the invention, an automatic height adjustment system for a roller of a coal mining machine comprises a rack 1, a movable frame 2 arranged above the rack 1, a roller body 3 arranged on the movable frame 2, and a P L C programming controller arranged inside the rack 1, wherein the bottom end of the movable frame 2 is connected with one end of the rack 1 through a rotating shaft, one end of the rotating shaft is fixedly arranged to penetrate through the rack 1, an angle sensor 11 is arranged on the rotating shaft, the angle sensor 11 is electrically connected with the P L C programming controller through a data wire, a rotating column 26 is fixed on one side of the roller body 3 close to the rack 1, one end of the rotating column 26 far away from the roller body 3 is arranged on a lifting plate 17, racks 25 are arranged on the front side and the rear side of the lifting plate 17, the racks 25 are respectively arranged at the outer edge of the lifting plate 17, fixing frames 12 are arranged on both sides of the lifting plate 17, open slots 20 are arranged on both side surfaces of the fixing frames 12, two symmetrical lifting frames are arranged in the fixing frames 12, both sides of the two sides of the lifting frame 17, two sides of the two fixing frames are respectively provided with two sets of the angle sensors 11, the.

Referring to fig. 1, a first gear 4 is fixed at the end of the rotating shaft, a second gear 5 is arranged at one side of the first gear 4, the first gear 4 and the second gear 5 are connected through a first chain 6, the second gear 5 is fixed on a connecting shaft, the inward end of the connecting shaft is mounted on a frame 1 through a bearing, a first driven gear 7 is fixed at the outward end of the connecting shaft, a first driving gear 8 is arranged at one side of the first driven gear 7, the first driving gear 8 is connected with the first driven gear 7 through a second chain 9, the first driving gear 8 is fixed on an output shaft of a first servo motor 10, and the first servo motor 10 is mounted on the frame 1; a driving gear 8 rotates and drives driven gear 7 and rotates, makes driven gear 7 rotate and drives No. two gears 5 and rotate, and then makes No. two gears 5 drive a chain 6 and remove, then makes a chain 6 remove and drives a gear 4 and rotate, makes a gear 4 rotate and drives the pivot and rotate to drive adjustable shelf 2 and remove, can rotate the height that changes cylinder body 3 through adjustable shelf 2, conveniently reaches the effect of adjusting the height of cylinder body 3.

Referring to fig. 2 to 5 and 7, each of the lifting mechanisms includes a plurality of driving gears 21, the driving gears 21 are engaged with racks 25 on the lifting plate 17, one side of each of the driving gears 21 away from the lifting plate 17 is provided with a transmission gear 22, all the transmission gears 22 are connected through a third chain 23, the driving gears 21 and the corresponding transmission gears 22 are fixed on a rotating rod 24, one side of one of the transmission gears 22 is provided with a second servo motor 16, the second servo motor 16 is installed on the inner wall of the fixed frame 12, an output shaft of the second servo motor 16 is connected with a rotating rod 24 corresponding thereto through a coupling, the other end of the rotating rod 24 and two ends of the remaining rotating rods 24 are installed on the inner wall of the fixed frame 12 through bearings, two side surfaces of the lifting plate 17 are respectively fixed with a plurality of sliders 15, a slide rail 13 is installed on the inner wall of the movable frame 2 at a position corresponding to the slider 15, the lifting plate 17 is connected with the bottom end of the movable frame 2 through a telescopic frame 18, a detected element 19 is installed on the bottom of the movable frame 2, the bottom of the movable frame 2 is electrically connected with a displacement sensor 3514 capable of being capable of accurately controlled by a displacement sensor installed on the lifting plate 14, and the lifting plate 17, the lifting plate 17 is capable of accurately moving up and capable of moving up and down through a displacement sensor, the detected element, the detected displacement sensor is installed on the lifting plate 17, and the lifting plate, the lifting plate 17, the lifting plate is capable of moving up and down, the lifting.

Referring to fig. 6, one end of the rotary column 26 away from the roller body 3 is mounted on the lifting plate 17 through a bearing, a second driven gear 27 is fixed on the rotary column 26, a second driving gear 28 is arranged on one side of the second driven gear 27, the second driven gear 27 is connected with the second driving gear 28 through a fourth chain 29, the second driving gear 28 is fixed on an output shaft of a third servo motor 30, and the third servo motor 30 is mounted on the lifting plate 17; can rotate through No. two driving gear 28 and drive No. four chains 29 and remove, and then make No. four chains 29 remove and drive No. two driven gear 27 and rotate, make No. two driven gear 27 rotate and drive the rotation post 26 and rotate, make the rotation post 26 rotate and drive cylinder body 3 and rotate, make things convenient for cylinder body 3 work.

The working principle is as follows: if the angle of the movable frame 2 does not need to be adjusted, the second servo motor 16 is firstly started, the second servo motor 16 is enabled to work to drive the rotating rod 24 fixedly connected with the second servo motor to rotate, the rotating rod 24 is enabled to rotate to drive the transmission gear 22 and the driving gear 21 fixed on the rotating rod to rotate, the transmission gear 22 is enabled to rotate to drive the third chain 23 on the outer side of the transmission gear to move, the third chain 23 is enabled to move to drive other transmission gears 22 to rotate, other transmission gears 22 are enabled to rotate to drive other rotating rods 24 to rotate, the rotating rods 24 are enabled to rotate to drive the driving gear 21 fixed on the transmission gears to rotate, and all the driving gears 21 are enabled to drive the racks 25 on the lifting plate 17 meshed with the driving gears to move up and down, so that the effect of adjusting the lifting plate 17 to; the lifting plate 17 moves along the slide rail 13 through the slide blocks 15 at the two ends of the lifting plate 17, the lifting plate 17 moves up and down to drive the roller body 3 to move up and down, when the lifting plate 17 moves up and down, the telescopic frame 18 at the bottom of the lifting plate extends and retracts, meanwhile, the displacement sensor 14 can detect the distance between the lifting plate and the detected element 19, meanwhile, the angle sensor 11 can detect the rotating angle of the rotating shaft, and further the moving distance of the roller body 3 in the vertical direction can be calculated through the pythagorean theorem, so that the effect of accurately adjusting the height is achieved; when the height of the roller body 3 cannot be adjusted as required by only adjusting the lifting mechanism, the first servo motor 10 is started, the first servo motor 10 is enabled to work to drive the first driving gear 8 fixedly connected with the first servo motor to rotate, the first driving gear 8 is enabled to rotate to drive the second chain 9 on the outer side of the first driving gear to move, the second chain 9 is enabled to move to drive the first driven gear 7 to rotate, the first driven gear 7 is enabled to rotate to drive the connecting shaft fixedly connected with the first driven gear to rotate, the connecting shaft is enabled to rotate to drive the second gear 5 to rotate, the second gear 5 is enabled to rotate to drive the first chain 6 to move, the first chain 6 is enabled to move to drive the first gear 4 to rotate, the first gear 4 is enabled to rotate to drive the rotating shaft to rotate to drive the movable frame 2 to rotate, the roller body 3 in front of the movable frame 2 is driven to rotate, and then the inclined angle of the movable frame 2 is detected, and the distance between the bottom of the movable frame 2 and the detected element 19 is detected by matching with the displacement sensor 14, and the distance of the roller body 3 in the vertical direction is calculated according to the pythagorean theorem, so that the effect of accurately adjusting the height of the roller body 3 is achieved.