Cleaning and sorting device for coal mine

Abstract

The utility model discloses a cleaning and sorting device for a coal mine, and belongs to the technical field of coal mine production. The screening device comprises a bottom box frame, a screening device body is arranged in the bottom box frame and comprises a lower screening plate and a motor, a moving groove is formed in the top of the lower screening plate, an upper screening plate is slidably connected into the moving groove, a first fixing plate is connected to one side of the top of the lower screening plate, and a nut is embedded in the first fixing plate; a threaded rod is rotationally connected into the nut; the screening device is arranged, a crank is rotated to enable a rotary disc to drive a threaded rod to rotate, then the threaded rod is made to move through a nut in a first fixing plate, the threaded rod drives a second fixing plate to move, an upper screening plate is made to move, screening holes of the upper screening plate and screening holes of a lower screening plate are made to be staggered, and screening efficiency is improved. And therefore, the device can adapt to screening of coal briquettes with different sizes without replacing the upper screening plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine production, in particular to a cleaning and sorting device for coal mines. Background Art

[0002] Coal block, fossil energy, coal is a block shape sorted out after underground mining. The large pieces of bituminous coal left after simple screening are often screened by using mesh size to determine the minimum size of the block.

[0003] Chinese application number: CN202021508289.5 discloses a coal block sorting device for coal mine exploitation, which includes support rods, and the number of the support rods is four. Four conveying rollers are arranged between the four support rods, and the front and rear ends of the four conveying rollers respectively rotate and pass through the upper and lower ends of the four support rods. The four conveying rollers are driven by a conveyor belt, and the upper ends of the two support rods located in the front and the upper ends of the two support rods located in the rear are fixedly connected by a mounting plate, and a mounting shaft is arranged above the conveyor belt. However, in actual use, since the size of the sieve holes on the conveyor belt of the device is fixed, it cannot adapt to the screening needs of coal mines of different sizes, which makes its practicality low. Utility Model Content

[0004] The utility model aims to solve the problem that the size of the sieve holes of the sieve plate cannot be adjusted, and proposes a cleaning and sorting device for coal mines.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cleaning and sorting device for coal mines, comprising a bottom box frame, a screening device is arranged in the bottom box frame, the screening device comprises a lower screen plate and a motor, a movable groove is opened at the top of the lower screen plate, and an upper screen plate is slidably connected in the movable groove, a first fixed plate is connected to one side of the top of the lower screen plate, a nut is embedded in the first fixed plate, and a threaded rod is rotatably connected in the nut, and a turntable is connected at one end of the threaded rod, and a crank is connected to one side of the turntable, a second fixed plate is connected to one side of the top of the upper screen plate, two sliding rods are connected to the bottom of the lower screen plate, and a sliding sleeve seat is slidably connected to the outer wall of the sliding rod, and a spring is sleeved on the outer wall of the sliding rod, the motor output shaft is connected to a rotating rod, and two cams are connected to the outer wall of the rotating rod.

[0006] As a further description of the above technical solution:

[0007] One side of the sliding sleeve seat is connected to one side of the inner wall of the bottom box frame, and both sides of the lower screen plate are slidably connected to the inner wall of the bottom box frame, the two ends of the spring are respectively connected to one side of the lower screen plate and the top of the sliding sleeve seat, and one side of the motor is connected to one side of the outer wall of the bottom box frame, and the motor output shaft extends into the bottom box frame, and the outer wall of the cam fits the bottom of the lower screen plate, and a baffle is connected to one side of the upper screen plate.

[0008] As a further description of the above technical solution:

[0009] A bearing is embedded on one side of the second fixed plate, and a rotating shaft is rotatably connected in the bearing, and one end of the rotating shaft is connected to one end of the threaded rod. Pin rods are connected on both sides of the lower screen plate, and pin holes are opened on both sides of the inner wall of the bottom box frame, and the pin holes are plugged with the pin rods.

[0010] As a further description of the above technical solution:

[0011] Slide grooves are provided on both sides of the inner wall of the movable groove, and a sliding block is slidably connected in the slide groove, and one side of the sliding block is connected to one side of the upper screen plate.

[0012] As a further description of the above technical solution:

[0013] An output module is connected to one side of the bottom box frame, and two brackets are connected to the top of the conveying module, and two legs are connected to the bottom of the conveying module, and the tops of the two brackets are connected to the same cleaning device, the cleaning device includes two fixed frames, and one side of one of the fixed frames is embedded with multiple bearings, and a rotating shaft is rotatably connected in the bearing, and one end of the rotating shaft is connected to a connecting pipe, the bottom of the connecting pipe is connected to a nozzle, and the other end of the rotating shaft is connected to a gear, and the outer walls of multiple gears are meshed with the same rack, and one side of the rack is connected to an electric push rod, and the other end of the connecting pipe is rotatably connected to one side of the other fixed frame, and the side of the fixed frame close to the rack is connected to a fixing bar.

[0014] As a further description of the above technical solution:

[0015] A limiting groove is provided on the top of the fixing bar, and a slide bar is slidably connected in the limiting groove, and one side of the slide bar is connected to one side of the rack, one side of the electric push rod is fixedly installed on one side of one of the fixing frames, and the bottoms of the two fixing frames are respectively connected to the tops of the two brackets.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] 1. In the utility model, a screening device is provided, and a crank is turned to make the turntable drive the threaded rod to rotate, and then the threaded rod is moved through the nut in the first fixed plate, so that the threaded rod drives the second fixed plate to move, and then the upper screen plate is moved, so that the screen holes of the upper screen plate and the lower screen plate are misaligned, and then the size of the screen holes is changed, so that the device can adapt to the screening of coal blocks of different sizes without replacing the upper screen plate, thereby improving the practicality of the device.

[0018] 2. In the utility model, a cleaning device is provided, and an electric push rod drives the rack to move, which in turn drives the gear to rotate, and the gear drives the connecting pipe to rotate, which in turn drives the nozzle to swing, so that the clean water sprayed by the nozzle can fully clean the coal blocks, thereby improving the cleaning effect of the device on the coal blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a coal mine cleaning and sorting device proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a screening device for a coal mine cleaning and sorting device proposed by the utility model;

[0021] Figure 3 A coal mine cleaning and sorting device proposed by the utility model Figure 2 The enlarged structural diagram of part A in the middle;

[0022] Figure 4 This is a schematic diagram of the structure of a cleaning device for a coal mine cleaning and sorting device proposed by the utility model;

[0023] Figure 5 A coal mine cleaning and sorting device proposed by the utility model Figure 4 The enlarged structural diagram of part B is shown in the figure.

[0024] Legend: 1. Bottom box frame; 2. Bracket; 3. Support leg; 4. Conveying module; 5. Cleaning device; 501. Fixed frame; 502. Connecting pipe; 503. Electric push rod; 504. Fixed bar; 505. Gear; 506. Nozzle; 507. Rack; 508. Slide bar; 6. Screening device; 601. Lower sieve plate; 602. Threaded rod; 603. Crank; 604. Turntable; 605. First fixed plate; 606. Moving groove; 607. Slide bar; 608. Spring; 609. Sliding sleeve seat; 610. Motor; 611. Rotating rod; 612. Cam; 613. Pin rod; 614. Sliding block; 615. Upper sieve plate; 616. Baffle; 617. Second fixed plate; 618. Slide groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5The utility model provides a technical solution: a cleaning and sorting device for coal mines, comprising a bottom box frame 1, a screening device 6 is arranged in the bottom box frame 1, the screening device 6 comprises a lower screen plate 601 and a motor 610, a movable groove 606 is opened on the top of the lower screen plate 601, and an upper screen plate 615 is slidably connected in the movable groove 606, a first fixed plate 605 is connected to one side of the top of the lower screen plate 601, a nut is embedded in the first fixed plate 605, and a threaded rod 602 is rotatably connected in the nut, and a turntable 604 is connected to one end of the threaded rod 602, and a crank 603 is connected to one side of the turntable 604, a second fixed plate 617 is connected to one side of the top of the upper screen plate 615, two sliding rods 607 are connected to the bottom of the lower screen plate 601, and a sliding sleeve seat 609 is slidably connected to the outer wall of the sliding rod 607, and a spring 608 is sleeved on the outer wall of the sliding rod 607, the output shaft of the motor 610 is connected to a rotating rod 611, and the outer wall of the rotating rod 611 is connected to two Cam 612, one side of the sliding sleeve seat 609 is connected to one side of the inner wall of the bottom box frame 1, and both sides of the lower screen plate 601 are slidably connected to the inner wall of the bottom box frame 1, the two ends of the spring 608 are respectively connected to one side of the lower screen plate 601 and the top of the sliding sleeve seat 609, and one side of the motor 610 is connected to one side of the outer wall of the bottom box frame 1, and the output shaft of the motor 610 extends into the bottom box frame 1, and the outer wall of the cam 612 is in contact with the bottom of the lower screen plate 601, and the upper screen plate 615 is connected to a baffle 616 A bearing is embedded on one side of the second fixed plate 617, and a rotating shaft is rotatably connected in the bearing, and one end of the rotating shaft is connected to one end of the threaded rod 602, pin rods 613 are connected to both sides of the lower screen plate 601, and pin holes are opened on both sides of the inner wall of the bottom box frame 1, and the pin holes are plugged with the pin rods 613, and sliding grooves 618 are opened on both sides of the inner wall of the movable groove 606, and a slider 614 is slidably connected in the sliding groove 618, and one side of the slider 614 is connected to one side of the upper screen plate 615.

[0027] In a specific implementation, a screening device 6 is provided, and a crank 603 is rotated to drive a turntable 604 to rotate, and the turntable 604 drives a threaded rod 602 to rotate, so that the threaded rod 602 moves in a nut embedded in a first fixed plate 605, and then the threaded rod 602 drives the second fixed plate 617 to move, and the second fixed plate 617 drives the upper screen plate 615 to move, so that the screen holes of the upper screen plate 615 and the lower screen plate 601 are misaligned, so that the size of the screen holes falling between the upper screen plate 615 and the lower screen plate 601 is adjusted, so that the device can meet the needs of screening coal blocks of different sizes.

[0028] An output module is connected to one side of the bottom box frame 1, and two brackets 2 are connected to the top of the conveying module 4, and two legs 3 are connected to the bottom of the conveying module 4, and the tops of the two brackets 2 are connected to the same cleaning device 5, and the cleaning device 5 includes two fixed frames 501, and one side of one of the fixed frames 501 is embedded with multiple bearings, and a rotating shaft is rotatably connected in the bearing, and one end of the rotating shaft is connected to a connecting pipe 502, and the bottom of the connecting pipe 502 is connected to a nozzle 506, and the other end of the rotating shaft is connected to a gear 505, and the outer walls of the multiple gears 505 are meshed with the same gear. The rack 507 is connected to an electric push rod 503 on one side, and the other end of the connecting tube 502 is rotatably connected to one side of another fixed frame 501, and the fixed frame 501 on the side close to the rack 507 is connected to a fixing bar 504, a limiting groove is provided on the top of the fixing bar 504, and a sliding bar 508 is slidably connected in the limiting groove, and one side of the sliding bar 508 is connected to one side of the rack 507, one side of the electric push rod 503 is fixedly installed on one side of one of the fixed frames 501, and the bottoms of the two fixed frames 501 are respectively connected to the tops of the two brackets 2.

[0029] In a specific implementation manner, a cleaning device 5 is provided, and the electric push rod 503 is contracted to drive the rack 507 to move back and forth left and right. The sliding bar 508 is provided to slide in the limiting groove, so that the rack 507 is more stable when moving, thereby avoiding the rack 507 from getting stuck. Then, the gear 505 is driven to rotate by the rack 507, and the rotation of the gear 505 drives the connecting pipe 502 to rotate. The rotation of the connecting pipe 502 drives the nozzle 506 to swing, so that the water sprayed from the nozzle 506 can swing left and right, thereby fully cleaning the coal blocks.

[0030] Working principle: When in use, the coal blocks are transported through the conveying module 4, and the electric push rod 503 drives the rack 507 to move back and forth, and the rack 507 drives the gear 505 to rotate, and then the gear 505 rotates to drive the connecting pipe 502 to rotate, so that the connecting pipe 502 rotates to drive the nozzle 506 to swing, and then the water sprayed by the nozzle 506 swings, so that the coal blocks are fully cleaned, and the cleaned coal blocks fall onto the upper screen plate 615, and the motor 610 rotates to drive the rotating rod 611 to rotate, and then the rotating rod 611 drives the cam 612 to rotate, so that the cam 612 Hitting the lower sieve plate 601 causes the lower sieve plate 601 and the upper sieve plate 615 to vibrate, thereby screening the coal blocks. By turning the crank 603, the crank 603 drives the threaded rod 602 to rotate through the turntable 604, thereby causing the threaded rod 602 to move in the first fixed plate 605, thereby driving the second fixed plate 617 to move, and the second fixed plate 617 drives the upper sieve plate 615 to move, thereby causing the upper sieve plate 615 and the lower sieve plate 601 to be misaligned, thereby changing the size of the falling sieve holes between the upper sieve plate 615 and the lower sieve plate 601, thereby meeting the screening needs of different sizes.

[0031] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances;

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cleaning and sorting device for coal mines, comprising a bottom box frame (1), It is characterized in that The bottom box frame (1) is provided with a screening device (6), the screening device (6) comprising a lower screen plate (601) and a motor (610), a movable groove (606) is provided on the top of the lower screen plate (601), and an upper screen plate (615) is slidably connected in the movable groove (606), a first fixed plate (605) is connected to one side of the top of the lower screen plate (601), a nut is embedded in the first fixed plate (605), and a threaded rod (602) is rotatably connected in the nut, and one end of the threaded rod (602) is connected to a rotating The turntable (604) is provided with a crank (603) on one side, the top side of the upper sieve plate (615) is connected to a second fixed plate (617), the bottom of the lower sieve plate (601) is connected to two sliding rods (607), the outer wall of the sliding rod (607) is slidably connected to a sliding sleeve seat (609), and the outer wall of the sliding rod (607) is sleeved with a spring (608), the output shaft of the motor (610) is connected to a rotating rod (611), and the outer wall of the rotating rod (611) is connected to two cams (612).

2. A coal mine cleaning and sorting device according to claim 1, It is characterized in that One side of the sliding sleeve seat (609) is connected to one side of the inner wall of the bottom box frame (1), and two sides of the lower screen plate (601) are slidably connected to the inner wall of the bottom box frame (1), two ends of the spring (608) are respectively connected to one side of the lower screen plate (601) and the top of the sliding sleeve seat (609), and one side of the motor (610) is connected to one side of the outer wall of the bottom box frame (1), and the output shaft of the motor (610) extends into the bottom box frame (1), and the outer wall of the cam (612) is in contact with the bottom of the lower screen plate (601), and one side of the upper screen plate (615) is connected to a baffle (616).

3. A coal mine cleaning and sorting device according to claim 1, It is characterized in that A bearing is embedded on one side of the second fixed plate (617), and a rotating shaft is rotatably connected in the bearing, and one end of the rotating shaft is connected to one end of the threaded rod (602). Pin rods (613) are connected to both sides of the lower screen plate (601), and pin holes are opened on both sides of the inner wall of the bottom box frame (1), and the pin holes are plugged into the pin rods (613).

4. A coal mine cleaning and sorting device according to claim 1, It is characterized in that Slide grooves (618) are provided on both sides of the inner wall of the movable groove (606), and a slider (614) is slidably connected in the slide groove (618), and one side of the slider (614) is connected to one side of the upper screen plate (615).

5. A coal mine cleaning and sorting device according to claim 1, It is characterized in that The bottom box frame (1) is connected to an output module on one side, and the top of the conveying module (4) is connected to two brackets (2), and the bottom of the conveying module (4) is connected to two legs (3), and the tops of the two brackets (2) are connected to the same cleaning device (5), and the cleaning device (5) comprises two fixed frames (501), and one side of one of the fixed frames (501) is embedded with a plurality of bearings, and a rotating shaft is rotatably connected in the bearing, and one end of the rotating shaft is connected to a connecting pipe (502), the bottom of the connecting pipe (502) is connected to a nozzle (506), and the other end of the rotating shaft is connected to a gear (505), and the outer walls of the plurality of gears (505) are meshed with the same rack (507), and one side of the rack (507) is connected to an electric push rod (503), and the other end of the connecting pipe (502) is rotatably connected to one side of the other fixed frame (501), and the side of the fixed frame (501) close to the rack (507) is connected to a fixing bar (504).

6. A coal mine cleaning and sorting device according to claim 5, It is characterized in that A limiting groove is provided on the top of the fixing bar (504), and a slide bar (508) is slidably connected in the limiting groove, and one side of the slide bar (508) is connected to one side of the rack (507), one side of the electric push rod (503) is fixedly installed on one side of one of the fixing frames (501), and the bottoms of the two fixing frames (501) are respectively connected to the tops of the two brackets (2).

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