CN109917100A - A similar simulation test device for top coal caving for re-mining of residual coal - Google Patents

Abstract

A kind of residual coal second mining Sub-Level Caving analog simulation experimental rig, including mobile base, hydraulic leg is fixedly connected at surrounding on the downside of the mobile base, it is fixedly connected on the downside of hydraulic leg top and mobile base, the free end of hydraulic leg is arranged downward, the bottom end of the hydraulic leg free end is fixedly connected with support baseboard, is also fixedly connected with four rolling on the downside of the mobile base；It is fixedly connected on the upside of the mobile base by four lifting devices and puts coal storage tank, the left side for putting coal storage tank is openning shape, and the bottom for putting coal storage tank is hinged with baffle by hinge.The beneficial effects of the invention are as follows realized using lifting device put coal storage tank angle facilitate adjusting, so that the speed to Sub-Level Caving is effectively controlled；The release that baffle is realized using baffle limiting device realizes going on smoothly for Sub-Level Caving；It is obtained using process data of the survey meter to Sub-Level Caving, improves intelligent level.

Description

A similar simulation test device for top coal caving for re-mining of residual coal

technical field

The invention relates to the technical field of top coal caving, in particular to a similar simulation test device for residual coal re-mining top coal caving.

Background technique

The top coal caving mining method is to arrange a coal mining face with a mining height of 2 to 3 m along the bottom of the coal seam or the bottom within a certain thickness range of the coal seam when mining thick coal seams, and use a comprehensive mechanized method to mine and use the mine pressure. The top coal is broken into bulk and released from the "coal discharge window" behind or above the support, and is transported out of the working face by a scraper conveyor.

Due to the limitation of residual coal occurrence conditions, the use of solid coal low-level top coal caving technology for residual coal re-mining, the recovery rate is too low. , in order to obtain the best mining effect.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a similar simulation test device for top coal caving for re-mining of residual coal, so as to solve the problems raised in the above background technology.

To achieve the above object, the present invention provides the following technical solutions:

A similar simulation test device for top coal caving for re-mining of residual coal includes a movable base, hydraulic outriggers are fixedly connected around the lower side of the movable base, the top of the hydraulic outrigger is fixedly connected with the lower side of the movable base, and the hydraulic outriggers are free The bottom end of the free end of the hydraulic outrigger is fixedly connected with a support base plate, and the lower side of the movable base is also fixedly connected with four rollers; the upper side of the movable base is fixedly connected with a coal discharger through four lifting devices Storage box, the left side of the coal discharging storage box is open, the bottom of the coal discharging storage box is hinged with a baffle plate, and the upper side of the coal discharging storage box is fixedly connected with a baffle limiting device; the left side of the movable base A blanking box is placed on the side, a flat trolley is placed on the left side of the blanking box, and a detector is fixedly connected to the flat trolley.

As a further solution of the present invention, the coal discharging storage box is made of transparent plastic material.

As a further solution of the present invention, the lifting device includes a support column, the bottom end of the support column is fixedly connected with the upper side of the movable base, the support column is provided with a groove with the opening facing upward, and the groove is provided with a vertical thread The bottom end of the vertical threaded rod is fixedly connected with the bottom of the support column, the lower part of the vertical threaded rod is fixedly connected with a driven bevel gear, the right side of the driven bevel gear is meshed with a driving bevel gear, and the right end of the driving bevel gear is fixedly connected with a rotating bevel gear. The right end of the rotating rod is arranged through the support column, and the right end of the rotating rod is fixedly connected with the first motor output shaft; the groove above the vertical threaded rod is provided with a lifting column, and the lower part of the lifting column is provided with an opening facing downward In the provided threaded groove, the top of the vertical threaded rod is threadedly connected with the threaded groove, and the top of the lifting column is fixedly connected with the bottom of the coal discharging storage tank.

As a further solution of the present invention, two anti-rotation grooves are symmetrically opened on the inner side wall of the groove, and an anti-rotation rod is arranged in the anti-rotation groove, and the other end of the anti-rotation rod is fixedly connected to the side wall of the lifting column. .

As a further solution of the present invention, the baffle limiting device includes a fixed block, the fixed block is in the shape of a horizontal cuboid, the fixed block is provided with a moving groove with an upward opening, and a moving block is arranged in the moving groove , a threaded through hole is opened on the moving block, a horizontal threaded rod is threaded in the threaded through hole, both ends of the horizontal threaded rod are erected on the fixed block, and the right end of the horizontal threaded rod is fixedly connected with the output shaft of the second motor; The upper side of the moving block is fixedly connected with a horizontal rod through the connecting block, and the lower side of the left end of the horizontal rod is fixedly connected with a limiting baffle.

As a further solution of the present invention, the cross-sections of the moving block and the moving groove are both convex, and the moving block and the moving groove are matched.

The beneficial effects of the invention are that the lifting device is used to realize the convenient adjustment of the angle of the coal caving storage tank, so as to effectively control the speed of the top coal caving; The coal is carried out smoothly; the process data of top coal caving is acquired by the detector, which improves the level of intelligence.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structural representation of the lifting device of the present invention;

3 is a schematic structural diagram of the baffle limiting device of the present invention;

FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 3 of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, 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.

Please refer to FIG. 1-FIG. 4. In the embodiment of the present invention, a similar simulation test device for re-mining top coal caving of residual coal includes a movable base 1, and hydraulic outriggers 2 are fixedly connected around the lower side of the movable base 1. The top end of the hydraulic outrigger 2 is fixedly connected to the lower side of the movable base 1, the free end of the hydraulic outrigger 2 is arranged downward, the bottom end of the free end of the hydraulic outrigger 2 is fixedly connected with the support base plate 3, and the lower side of the movable base 1 is also Four rollers 4 are fixedly connected. When the present invention works, the hydraulic outriggers 2 drive the support base plate 3 to move downward to contact the ground, so that the stable operation of the device can be realized; after the work is completed, the hydraulic outriggers 2 can be used to Lift the support base plate 3, so that the roller 4 can drive the mobile base 1 to move easily;

The upper side of the movable base 1 is fixedly connected with a coal discharge storage box 6 through four lifting devices 5, and the left side of the coal discharge storage box 6 is open. The upper side of the mobile base 1 is fixedly connected, the support column 501 is provided with a groove 502 with an opening facing upward, a vertical threaded rod 503 is set in the groove 502, and the bottom end of the vertical threaded rod 503 is fixedly connected with the bottom of the support column 501, The lower part of the vertical threaded rod 503 is fixedly connected with a driven bevel gear 504, the right side of the driven bevel gear 504 is meshed with a driving bevel gear 505, the right end of the driving bevel gear 505 is fixedly connected with a rotating rod 506, and the right end of the rotating rod 506 passes through the support A column 501 is provided, the right end of the rotating rod 506 is fixedly connected with the output shaft of the first motor 507; a lifting column 5011 is arranged in the groove 502 above the vertical threaded rod 503, and the lower part of the lifting column 5011 is provided with an opening facing downward The top of the vertical threaded rod 503 is threadedly connected to the threaded groove 508, and the top of the lifting column 5011 is fixedly connected to the bottom of the coal discharge storage tank 6. The use of two lifting devices 5 can easily realize the coal discharge storage tank. 6, thus changing the speed of coal discharging. The specific method is to change the extension height of the lifting columns on both sides: start the first motor, the first motor drives the rotating rod, the rotating rod drives the driving bevel gear to rotate, and the driving bevel gear The driven bevel gear is driven to rotate, and the driven bevel gear drives the vertical threaded rod to rotate, and the lifting column 5011 matched with the vertical threaded rod extends or descends from the groove 502, thereby realizing the adjustment of the angle of the coal storage tank 6 .

Two anti-rotation grooves 509 are symmetrically opened on the inner side wall of the groove 502. An anti-rotation rod 5010 is arranged in the anti-rotation groove 509. The other end of the anti-rotation rod 5010 is fixedly connected to the side wall of the lifting column 5011. Under the action of the rotating rod 5010 , the lifting column 5011 cannot rotate together with the vertical threaded rod 503 , so the lifting column 5011 can only move up and down along the anti-rotation groove 509 .

The bottom of the coal discharging storage box 6 is hinged with a baffle 8 through a hinge 9, and a baffle limiting device 7 is fixedly connected to the upper side of the coal discharging storage box 6. The baffle limiting device 7 includes a fixing block 701, which is fixed The block 701 is in the shape of a horizontal cuboid, the fixed block 701 is provided with a moving slot 702 with an opening facing upward, a moving block 703 is arranged in the moving slot 702, and the moving block 703 is provided with a threaded through hole 704, and the threaded through hole 704 The inner thread is connected with a horizontal threaded rod 705, the two ends of the horizontal threaded rod 705 are erected on the fixed block 701, and the right end of the horizontal threaded rod 705 is fixedly connected with the output shaft of the second motor 706; the upper side of the moving block 703 passes through The connecting block 707 is fixedly connected with a horizontal rod 708, and the lower side of the left end of the horizontal rod 708 is fixedly connected with a limit baffle 709. Before the top coal caving, the baffle 8 is in a vertical state, and the limit baffle 709 fixes the baffle 8. It will not rotate around the hinge 9. When top coal caving is required, start the second motor 706, the second motor 706 drives the horizontal threaded rod 705 to rotate, and the moving block 703 matched with the horizontal threaded rod 705 moves to the left, thereby The horizontal rod 708 is driven to the left by the connecting block 703, so that the limiting baffle 709 moves to the left, and the limiting effect on the baffle 8 is lost, and the baffle 8 is rotated counterclockwise around the hinge 9 by the thrust of the material. , to realize the top coal caving action.

The cross-sections of the moving block 703 and the moving groove 702 are both convex, and the moving block 703 cooperates with the moving groove 702. The convex moving block 703 will not rotate with the horizontal threaded rod 705, and the moving block 703 will not rotate from the horizontal threaded rod 705. Move out in the moving slot 702 .

A blanking box 10 is placed on the left side of the mobile base 1, a flatbed cart 11 is placed on the left side of the blanking box 10, and a detector 12 is fixedly connected to the flatbed cart 11. During the top coal caving process, a detector is used. 12 to obtain data, thus realizing intelligent top-coal caving caving analysis.

The coal-drawing storage box 6 is made of transparent plastic material, which is convenient for observing the movement of the materials inside the coal-drawing storage box 6 .

The working process of the present invention is as follows: when the present invention is working, the hydraulic outriggers 2 drive the supporting bottom plate 3 to move downward and contact the ground, so that the stable operation of the device can be realized; when the work is finished, the hydraulic outriggers 2 can be used to make The supporting bottom plate 3 is lifted up, so that the rollers 4 can drive the mobile base 1 to move easily; the two lifting devices 5 can be used to easily realize the inclination angle of the coal discharging storage tank 6, thereby changing the speed of coal discharging. The specific method is to change the two sides. The extension height of the lifting column: start the first motor, the first motor drives the rotating rod, the rotating rod drives the driving bevel gear to rotate, the driving bevel gear drives the driven bevel gear to rotate, the driven bevel gear drives the vertical threaded rod to rotate, and the vertical threaded rod rotates. The lifting column 5011 matched with the straight threaded rod extends or descends from the groove 502, thereby realizing the adjustment of the angle of the coal storage tank 6;

Before top coal caving, the baffle 8 is in a vertical state, and the limit baffle 709 makes the baffle 8 fixed and will not rotate around the hinge 9. When the top coal caving needs to be carried out, start the second motor 706, the second motor 706 drives the horizontal threaded rod 705 to rotate, and the moving block 703 matched with the horizontal threaded rod 705 moves to the left, thereby driving the horizontal rod 708 to move to the left through the connecting block 703, so that the limit baffle 709 moves to the left, If the limiting effect on the baffle plate 8 is lost, the baffle plate 8 is rotated counterclockwise around the hinge 9 by the thrust of the material to realize the top coal caving action; during the top coal caving process, the detector 12 is used to obtain data, thereby Realize intelligent top coal caving caving analysis.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (6)

1. a similar simulation test device for re-mining top coal caving of residual coal, comprising a mobile base, it is characterized in that, a hydraulic outrigger is fixedly connected around the lower side of the mobile base, and the top of the hydraulic outrigger is fixedly connected with the lower side of the mobile base , the free end of the hydraulic outrigger is set downward, the bottom end of the free end of the hydraulic outrigger is fixedly connected with a support base plate, and the lower side of the mobile base is also fixedly connected with four rollers; the upper side of the mobile base is lifted by four The device is fixedly connected with a coal discharge storage box, the left side of the coal discharge storage box is open, the bottom of the coal discharge storage box is hinged with a baffle plate through hinges, and the upper side of the coal discharge storage box is fixedly connected with a baffle limit device ; A blanking box is placed on the left side of the mobile base, a flat trolley is placed on the left side of the blanking box, and a detector is fixedly connected to the flat trolley. 2 . The similar simulation test device for top coal caving for re-mining of residual coal according to claim 1 , wherein the coal caving storage tank is made of transparent plastic material. 3 . 3 . The similar simulation test device for re-mining top coal caving according to claim 1 , wherein the lifting device comprises a support column, the bottom end of the support column is fixedly connected with the upper side of the movable base, and the inner part of the support column is fixedly connected. 4 . A groove with an opening facing upward is provided, a vertical threaded rod is arranged in the groove, the bottom end of the vertical threaded rod is fixedly connected with the bottom of the support column, and a driven bevel gear is fixedly connected to the lower part of the vertical threaded rod, and the driven bevel gear is fixedly connected to the bottom of the vertical threaded rod. The right side of the bevel gear is meshed with a driving bevel gear, the right end of the driving bevel gear is fixedly connected with a rotating rod, the right end of the rotating rod is arranged through the support column, and the right end of the rotating rod is fixedly connected with the first motor output shaft; the vertical threaded rod The upper groove is provided with a lifting column, the lower part of the lifting column is provided with a threaded groove with an opening facing downward, the top of the vertical threaded rod is threadedly connected with the threaded groove, and the top of the lifting column is fixedly connected with the bottom of the coal storage tank. . 4 . The similar simulation test device for re-mining top coal caving according to claim 3 , wherein two anti-rotation grooves are symmetrically opened on the inner side wall of the groove, and an anti-rotation groove is provided in the anti-rotation groove. 5 . The other end of the anti-rotation rod is fixedly connected with the side wall of the lifting column. 5. A similar simulation test device for residual coal re-mining top coal caving according to claim 1, wherein the baffle limiting device comprises a fixed block, the fixed block is in the shape of a horizontal cuboid, and the fixed block is in the shape of a horizontal cuboid. There is a moving groove with an opening facing upward, a moving block is arranged in the moving groove, a threaded through hole is opened on the moving block, a horizontal threaded rod is threaded in the threaded through hole, and both ends of the horizontal threaded rod are erected on the fixed block. , the right end of the horizontal threaded rod is fixedly connected with the second motor output shaft; the upper side of the moving block is fixedly connected with a horizontal rod through the connecting block, and the lower side of the left end of the horizontal rod is fixedly connected with a limiting baffle. 6 . The similar simulation test device for re-mining top coal caving of residual coal according to claim 5 , wherein the cross-sections of the moving block and the moving groove are convex, and the moving block and the moving groove are matched. 7 .