Coal mining machine lifting and horizontal cutter laser indicator, easy-to-operate comprehensive coal mining equipment and use method thereof

Abstract

The present invention relates to a laser indicator for lifting and horizontal blades of a coal mining machine, an easy-to-operate comprehensive coal mining equipment and a method of using the same. To fill the gap in the prior art. The laser indicator for lifting and horizontal blades of a coal mining machine comprises a guide rail, a slider, a surface laser emission box, a first electric push rod and a second electric push rod, the slider is fixed on the guide rail and can slide on the guide rail, the rear end of the first electric push rod is fixed on the matching hydraulic support, the front end of the first electric push rod is fixed on the slider, the surface laser emission box is directly or indirectly connected to the slider through a hinge, the lower end of the second electric push rod is hinged to the lower end of the second electric push rod through a horizontal axis, the upper end of the second electric push rod is directly or indirectly hinged to the slider through a horizontal axis, and a surface emitting laser element is provided on the front side of the surface laser emission box, and the axis center lines of all horizontal axes are parallel to the axis center lines of the hinge. The present invention also relates to easy-to-operate comprehensive coal mining equipment and a method of using the same. The present invention reduces the occurrence of accidents of conveyors and is suitable for use on comprehensive mining working faces in coal mines.

Description

Technical Field

[0001] The invention relates to a coal mining machine lifting and horizontal cutter laser indicator, easy-to-operate fully mechanized coal mining equipment and a use method thereof. Background Art

[0002] When the coal mining machine turns back at both ends of the working face, the height of the coal mining machine walking on the rack rail changes due to the change in the height of the front scraper conveyor rack rail, and the height of the coal mining machine walking on the rack rail also changes. The lifting and lowering amplitude of the coal mining machine drum changes, and the coal mining machine driver can only control the lifting and lowering amount of the drum by feeling and experience. The working face bottom plate cannot be flush with the chute bottom plate. If the drum is too low, it will inevitably cut the working face bottom plate, resulting in pits or grooves on the working face bottom plate. If the drum is too high, it will lead to incomplete cutting of the coal wall and residual coal steps on the working face bottom plate. Various uneven bottom plates lead to substandard project quality, serious wear of the conveyor, and frequent electromechanical accidents. Safety problems are easily caused during the processing process, affecting safe production.

[0003] There is no special technology and equipment in the prior art to help the coal mining machine driver control the lifting and lying cutter, and the driver can only rely on the experience and sense of responsibility of the coal mining machine driver. Summary of the invention

[0004] The technical problem to be solved by the present invention is how to fill the above-mentioned gaps in the prior art and provide a coal mining machine lift-and-lie knife laser indicator, an easy-to-operate fully mechanized coal mining equipment and a method of using the same.

[0005] In order to solve the above technical problems, the present coal mining machine lifting and horizontal cutter laser indicator comprises a guide rail, a slider, a surface laser emission box, a first electric push rod and a second electric push rod, the slider is fixed on the guide rail and can slide on the guide rail, the rear end of the first electric push rod is fixed on the matching hydraulic support, the front end of the first electric push rod is fixed on the slider, the rear edge of the surface laser emission box is directly or indirectly connected to the slider through a hinge, the lower end of the second electric push rod is hinged to the surface laser emission box through a horizontal axis, the upper end of the second electric push rod is directly or indirectly hinged to the slider through a horizontal axis, and the front side of the surface laser emission box is provided with a surface emitting laser element, and the axis center lines of all horizontal axes are parallel to the axis center line of the hinge. With such a design, when in use, a laser reflection line parallel to the bottom plate of the working face can be drawn on the coal wall to be mined as a reference line for the horizontal cutter, thereby greatly improving the accuracy of the coal mining machine driver in lifting and horizontal cutter.

[0006] As an optimization, a protrusion is provided on the front side of the surface laser emission box, and there are two surface-emitting laser elements, which are arranged on the protrusion, and the laser surfaces emitted by the two surface-emitting laser elements partially overlap. This design can expand the width of the laser surface emitted by the surface laser emission box.

[0007] As an optimization, the slider and the surface laser emission box are connected through a universal ball joint and a connection box, the universal ball joint is provided with a locking screw, the upper end of the second electric push rod is hinged to the connection box through a horizontal axis, and the lower end of the second electric push rod is hinged to the connection box through a horizontal axis. This design is easy to adjust.

[0008] The easy-to-operate comprehensive mining equipment of the present invention comprises a comprehensive mining face coal mining machine, a scraper conveyor, a transfer machine, a belt conveyor and a plurality of hydraulic supports, wherein the hydraulic supports comprise a bearing top plate, a shield plate, a base and a hydraulic column, and the comprehensive mining face coal mining machine comprises an electric control box, two left and right traction parts, two left and right cutting parts, two left and right coal mining rollers, two left and right support legs and two left and right walking boxes, characterized in that: it also comprises a plurality of the aforementioned coal mining machine lifting and lying knife laser indicators, wherein two coal mining machine lifting and lying knife laser indicators are installed on the end head hydraulic supports at both ends of the working face, and the remaining coal mining machine lifting and lying knife laser indicators are installed at intervals on the middle hydraulic support, and the guide rail of each coal mining machine lifting and lying knife laser indicator is fixed on the bearing top plate of the corresponding hydraulic support, and the laser surfaces emitted by the adjacent coal mining machine lifting and lying knife laser indicators partially overlap. With such a design, when in use, a horizontal laser reflection line can be drawn on the coal wall to be mined as a reference line for the lying knife, thereby greatly improving the accuracy of the coal mining machine driver lifting and lying knife.

[0009] The method for using the aforementioned easy-to-operate fully mechanized coal mining equipment of the present invention comprises the following steps: 1. Installing the fully mechanized coal mining face coal mining machine, scraper conveyor, transfer machine, belt conveyor and multiple hydraulic supports in place before cutting the working face, and installing two coal mining machine lifting and horizontal knife laser indicators on the end hydraulic supports at both ends of the working face, and installing the remaining coal mining machine lifting and horizontal knife laser indicators at intervals on the hydraulic supports in the middle of the working face, and fixing the guide rails of each coal mining machine lifting and horizontal knife laser indicator on the bearing top plate of the corresponding hydraulic support,

[0010] ②. Automatically or manually operate the first electric push rod of the shearer's lifting and horizontal cutter laser indicator to extend forward to the front stop point;

[0011] ③. Turn on the surface emitting laser elements of the shearer lifting and horizontal blade laser indicators on the end hydraulic supports and the intermediate hydraulic supports, and adjust the second electric push rods on the shearer lifting and horizontal blade laser indicators to make the laser surface emitted by the surface emitting laser elements illuminate the coal wall of the working face, and form a laser reflection line on the coal wall of the working face parallel to the bottom plate of the working face.

[0012] ④. Open the left and right cutting parts of the fully mechanized face coal mining machine and the left and right coal mining drums on them, then open the left traction part or the right traction part, and cut and mine coal from the coal wall at one end of the cut hole to the coal wall at the other end. During the coal mining process, use the laser reflection line on the coal wall of the working face as a reference to control the lifting and lying motion of the left or right coal mining drum below, so that the distance between the left or right coal mining drum below and the laser reflection line is always kept constant. With this design, a horizontal laser reflection line is drawn on the coal wall to be mined as a reference line for the lying knife, thereby greatly improving the accuracy of the coal mining machine driver in lifting and lying the knife.

[0013] As an optimization, the laser reflection line described in step ④ is tangent to the upper edge of the left or right coal mining drum below or to the upper edge of the cutting tooth running track on the left or right coal mining drum. Such a design makes it easy to control the horizontal cutter amount of the left or right coal mining drum below.

[0014] The coal mining machine lift and lay-down cutter laser indicator, easy-to-operate comprehensive coal mining equipment and the use method thereof of the present invention reduce the operating difficulty of the coal mining driver, can make the working face bottom plate and the chute bottom plate level, the conveyor state is greatly improved, the accidents of the front conveyor are reduced, and the electromechanical accident rate of the conveyor is reduced by 80%, fully ensuring safe production and reliable operation, and is suitable for use in the comprehensive coal mining working face of a coal mine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following is a further description of the easy-to-operate fully mechanized coal mining equipment of the present invention in conjunction with the accompanying drawings:

[0016] Figure 1 It is a side view structural schematic diagram of the first embodiment of the coal machine lifting and horizontal blade laser indicator;

[0017] Figure 2 It is a structural schematic diagram of the first embodiment of the easy-to-operate fully mechanized coal mining equipment;

[0018] Figure 3 This is a structural schematic diagram of the second implementation mode of the coal machine lifting and horizontal knife laser indicator;

[0019] Figure 4 It is a partial three-dimensional schematic diagram of the usage status of the second implementation mode of the easy-to-operate fully mechanized coal mining equipment.

[0020] In the figure: 1 is a guide rail, 2 is a slider, 3 is a surface laser emission box, 31 is a protrusion, 4 is a first electric push rod, 5 is a second electric push rod, 6 is a hinge, 7 is a horizontal axis, 8 is a surface emitting laser element, 9 is a universal ball joint, 10 is a connecting box, 11 is a locking screw, 12 is a fully mechanized mining face coal mining machine, 121 is a left coal mining drum or a right coal mining drum at the bottom, 13 is a hydraulic support, 131 is a bearing top plate, 132 is a shield plate, 133 is a base, 134 is a hydraulic column, 14 is a working face coal wall, 15 is a laser reflection line, and 16 is a cover. DETAILED DESCRIPTION

[0021] Implementation method 1: Figure 1 As shown, the coal mining machine lifting and horizontal cutter laser indicator includes a guide rail 1, a slider 2, a surface laser emission box 3, a first electric push rod 4 and a second electric push rod 5. The slider 2 is fixed on the guide rail 1 and can slide on the guide rail 1. The rear end of the first electric push rod 4 is fixed on the load-bearing top plate 131 equipped with a hydraulic support 13, and the front end of the first electric push rod 4 is fixed on the slider 2. The rear edge of the surface laser emission box 3 is directly or indirectly connected to the slider 2 through a hinge 6. The lower end of the second electric push rod 5 is hinged to the surface laser emission box 3 through a horizontal axis 7. The upper end of the second electric push rod 5 is directly or indirectly hinged to the slider 2 through the horizontal axis 7. The front side of the surface laser emission box 3 is provided with a surface emitting laser element 8, and the axis center lines of all horizontal axes 7 are parallel to the axis center lines of the hinge 6.

[0022] The front side of the surface laser emitting box 3 is provided with a protrusion 31 , and there are two surface emitting laser elements 8 . The two surface emitting laser elements 8 are arranged on the protrusion 31 , and the laser emission surfaces of the two surface emitting laser elements 8 partially overlap.

[0023] The slider 2 is connected to the surface laser emission box 3 through a universal ball joint 9 and a connecting box 10. The universal ball joint 9 is provided with a locking screw 11. The upper end of the second electric push rod 5 is hinged to the connecting box 10 through a horizontal axis 7, and the lower end of the second electric push rod 5 is hinged to the surface laser emission box 3 through a horizontal axis 7.

[0024] like Figure 2As shown, the easy-to-operate comprehensive coal mining equipment of the present invention comprises a comprehensive mining working face coal mining machine 12, a scraper conveyor (not shown in the figure), a transfer machine (not shown in the figure), a belt conveyor (not shown in the figure) and a plurality of hydraulic supports 13, wherein the hydraulic support 13 comprises a bearing top plate 131, a shield plate 132, a base 133 and a hydraulic column 134, and the comprehensive mining working face coal mining machine comprises an electric control box, left and right traction parts, left and right cutting parts, left and right coal mining rollers, left and right support legs and left and right walking boxes, characterized in that: it also comprises a plurality of the aforementioned coal mining machine lifting and horizontal knife laser indicators, wherein two coal mining machine lifting and horizontal knife laser indicators are installed on the end hydraulic supports 13 at both ends of the working face, and the remaining coal mining machine lifting and horizontal knife laser indicators are installed at intervals on the middle hydraulic support 13, and the guide rail 1 of each coal mining machine lifting and horizontal knife laser indicator is fixed on the bearing top plate 131 of the corresponding hydraulic support 13, and the laser surfaces emitted by adjacent coal mining machine lifting and horizontal knife laser indicators partially overlap.

[0025] The method for using the aforementioned easy-to-operate fully mechanized coal mining equipment comprises the following steps:

[0026] ①. Install the coal mining machine 12, scraper conveyor, transfer machine, belt conveyor and multiple hydraulic supports 13 of the fully mechanized mining face in place before cutting the face, and install two coal mining machine lifting and horizontal knife laser indicators on the end hydraulic supports 13 at both ends of the working face, and the remaining coal mining machine lifting and horizontal knife laser indicators are installed at intervals on the hydraulic supports 13 in the middle of the working face. The guide rail 4 of each coal mining machine lifting and horizontal knife laser indicator is fixed on the corresponding bearing top plate 131 of the hydraulic support 13.

[0027] ②. Automatically or manually operate the first electric push rod 4 of each coal mining machine's lifting and horizontal cutter laser indicator to extend forward to the front stop point. (When coal mining is finished or maintenance is required or personnel pass by, the first electric push rod 4 can be operated to drive the coal mining machine's lifting and horizontal cutter laser indicator to retreat to the rear stop point to save space).

[0028] ③. Turn on the surface emitting laser element 8 of the shearer lifting and horizontal blade laser indicator on the end hydraulic support 13 and each intermediate hydraulic support 13, and adjust the second electric push rod 5 on each shearer lifting and horizontal blade laser indicator so that the laser surface emitted by the surface emitting laser element 8 is irradiated on the working face coal wall 14, and a laser reflection line 15 parallel to the working face bottom plate is formed on the working face coal wall 14,

[0029] ④. Open the left and right cutting parts of the coal mining machine on the comprehensive mining working face and the left and right coal mining drums thereon, then open the left traction part or the right traction part, and carry out cutting and mining from the coal wall at one end of the cutting eye to the coal wall at the other end, and during the coal mining process, use the laser reflection line 15 on the coal wall 14 of the working face as a reference to control the lifting and lowering movements of the left or right coal mining drum below, so that the distance between the left or right coal mining drum below and the laser reflection line 15 is always kept constant, based on the axis line or outer edge of the left or right coal mining drum below.

[0030] like Figure 2 As shown, the laser reflection line 15 described in step ④ is tangent to the upper edge of the left coal mining drum or the right coal mining drum 121 below or is tangent to the upper edge of the cutting tooth running track on the left coal mining drum or the right coal mining drum 121 below.

[0031] Implementation method 2: Figure 3 , 4 As shown, the slider 2, the universal ball joint 9 and the connection box 10 are also covered with a cover 16, and the remaining structure is as described in the first embodiment.

Claims

1. An easy-to-operate fully mechanized coal mining equipment, comprising a fully mechanized working face coal mining machine, a scraper conveyor, a transfer machine, a belt conveyor and a plurality of hydraulic supports, wherein the hydraulic supports comprise a bearing top plate, a shield plate, a base and a hydraulic column, and the fully mechanized working face coal mining machine comprises an electric control box, left and right traction parts, left and right cutting parts, left and right coal mining drums, left and right support legs and left and right walking boxes, characterized in that: It also includes a number of coal mining machine lifting and horizontal knife laser indicators, two of which are installed on the end hydraulic supports at both ends of the working face, and the remaining coal mining machine lifting and horizontal knife laser indicators are installed at intervals on the middle hydraulic support, and the guide rail of each coal mining machine lifting and horizontal knife laser indicator is fixed on the corresponding hydraulic support The bearing top plate, the laser surfaces emitted by adjacent coal mining machine lifting and horizontal knife laser indicators partially overlap, the coal mining machine lifting and horizontal knife laser indicator includes a guide rail, a slider, a surface laser emission box, a first electric push rod and a second electric push rod, the slider is fixed on the guide rail and can slide on the guide rail, the rear end of the first electric push rod is fixed on the matching hydraulic support, and the front end of the first electric push rod is fixed on the slider, and the rear edge of the surface laser emission box is directly or indirectly folded through a hinge Connected to the slider, the lower end of the second electric push rod is hinged to the surface laser emission box through a horizontal axis, the upper end of the second electric push rod is directly or indirectly hinged to the slider through a horizontal axis, a surface emitting laser element is provided on the front side of the surface laser emission box, the axis lines of all horizontal axes are parallel to the axis line of the fold, a protrusion is provided on the front side of the surface laser emission box, there are two surface emitting laser elements, the two surface emitting laser elements are arranged on the protrusion, and the laser surfaces of the two surface emitting laser elements partially overlap, the slider is connected to the surface laser emission box through a universal ball joint and a connecting box, the universal ball joint is provided with a locking screw, the upper end of the second electric push rod is hinged to the connecting box through a horizontal axis, and the lower end of the second electric push rod is hinged to the upper part of the surface laser emission box through a horizontal axis.

2. A method for using the easy-to-operate fully mechanized coal mining equipment according to claim 1, comprising the following steps: ①. Install the coal mining machine, scraper conveyor, transfer machine, belt conveyor and multiple hydraulic supports in place before cutting the working face, and install two coal mining machine lifting and horizontal blade laser indicators on the end hydraulic supports at both ends of the working face. The remaining coal mining machine lifting and horizontal blade laser indicators are installed at intervals on the hydraulic supports in the middle of the working face. The guide rails of each coal mining machine lifting and horizontal blade laser indicator are fixed on the corresponding hydraulic support's bearing top plate. ②. Automatically or manually operate the first electric push rod of the shearer's lifting and horizontal cutter laser indicator to extend forward to the front stop point; ③. Turn on the surface emitting laser elements of the shearer lifting and horizontal blade laser indicators on the end hydraulic supports and the intermediate hydraulic supports, and adjust the second electric push rods on the shearer lifting and horizontal blade laser indicators to make the laser surface emitted by the surface emitting laser elements illuminate the coal wall of the working face, and form a reflective line on the coal wall of the working face parallel to the bottom plate of the working face. ④. Open the left and right cutting parts of the coal mining machine on the fully mechanized mining face and the left and right coal mining drums thereon, then open the left traction part or the right traction part, and carry out cutting and mining from the coal wall at one end of the cutting eye to the coal wall at the other end. In the process of mining, use the reflective line on the coal wall of the working face as a reference to control the lifting and lowering movements of the left or right coal mining drum below, so that the distance between the bottom plate formed by the left or right coal mining drum after mining and the reflective line is always kept constant.

3. The method for using the easy-to-operate fully mechanized coal mining equipment according to claim 2 is characterized in that: The reflecting line described in step ④ is tangent to the upper edge of the left coal mining drum or the right coal mining drum below, or is tangent to the upper edge of the cutting tooth running track on the left coal mining drum or the right coal mining drum.

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