CN117718126A - A mobile crushing and screening equipment - Google Patents

Abstract

The invention belongs to the technical field of coal mine screening, in particular to mobile crushing and screening equipment, which comprises an equipment main base; a processing conveyor is arranged on the main base of the equipment; the crushing and screening box is fixedly connected to the outer part of the main base of the equipment and far away from the processing conveyor; the crushing screening box through setting up is fixed on the top of removing the frame, rely on the vehicle to remove two wheels of frame traction cooperation, play the effect to the mobile crushing screening exploitation of colliery, utilize the pneumatic cylinder output to drive square board and support subaerial, and cooperate a plurality of kicking blocks to go deep into in granule and the lump material, play the effect to crushing screening equipment supports spacing, crushing roller cooperation short rod fast rotation, can be to the colliery crushing processing of exploitation, utilize a filter screen plate and No. two filter screen plates to the coal filtration of crushing, be convenient for follow-up processing to the coal, rely on the guide box to cooperate No. two guide blocks to fix on the top of crushing screening box, play the effect to the colliery direction is broken.

Description

A mobile crushing and screening equipment

Technical field

The invention belongs to the technical field of coal mine screening, and is specifically a mobile crushing and screening equipment.

Background technique

Minerals are natural substances contained underground. Minerals generally refer to coal mines, minerals, iron ores, etc. Coal mines are known as black gold and the food produced by industry. Although the value of coal is not as good as before, coal is still indispensable. One of the sources of energy.

When mining coal mines, crushing and screening equipment is usually used fixed in the mine cave to crush and screen the mined coal, thereby refining the mined coal and facilitating the subsequent processing and use of the coal mine in various industries.

In the process of coal mining, crushing and screening equipment is used to crush and screen the mined coal. Most of the mining crushing and screening equipment are usually installed in the mine for fixed assembly. However, due to the heavy weight of the equipment, it is not Mining will continue at a single location, making it difficult for crushing and screening equipment to facilitate mobile mining of minerals.

To this end, the present invention provides a mobile crushing and screening equipment.

Contents of the invention

In order to make up for the shortcomings of the existing technology, at least one technical problem raised in the background art is solved.

The technical solution adopted by the present invention to solve the technical problem is: a mobile crushing and screening equipment according to the present invention, including a main base of the equipment; a processing transporter is installed on the main base of the equipment; the outside of the main base of the equipment And a crushing and screening box is fixedly connected away from the processing conveyor; a servo motor is fixedly connected to the outside of the crushing and screening box; a crushing roller is fixedly connected to the output end of the servo motor, and the crushing roller is rotationally connected to the crushing and screening box. inside; a plurality of No. 1 short rods are fixedly connected to the outside of the crushing roller; a No. 1 guide block is symmetrically fixed to the inside of the crushing and screening box and close to the bottom of the crushing roller; the inside of the crushing and screening box is A conveyor is installed at the bottom of the crushing roller; a screening assembly is provided inside the crushing and screening box, and the screening assembly is used for screening coal mines; a moving mechanism is provided at the bottom of the crushing and screening box, and the moving mechanism is In conjunction with the position transfer of the crushing and screening box.

Preferably, the moving mechanism includes a moving frame, a trailer hook, a rotating shaft, wheels and a support assembly; the moving frame is fixed at the bottom end of the crushing and screening box; a trailer hook is fixed on the outside of the moving frame; A rotating shaft is rotatably connected to the bottom end of the mobile frame; wheels are fixedly connected to both ends of the rotating shaft; the support assembly is arranged at the bottom of the mobile frame, and the support assembly is used to park and support the crushing and screening box.

Preferably, the support assembly includes a hydraulic cylinder, a square plate and a top block; the hydraulic cylinder is fixed on the bottom end of the mobile frame, and there are multiple hydraulic cylinders; the square plate is fixed on the bottom end of the hydraulic cylinder. ; A plurality of the top blocks are fixed on the bottom end of the square plate.

Preferably, the screening assembly includes a No. 1 filter plate, a filter frame and a No. 2 filter plate; the No. 1 filter plate is fixed inside the crushing and screening box, and the No. 1 filter plate is located on the crushing roller. The lower position, and the No. 1 filter plate is set at an angle.

Preferably, a guide box is fixedly connected to the top of the crushing and screening box; a No. 2 guide block is symmetrically fixed inside the guide box.

Preferably, the top inner wall of the crushing and screening box is symmetrically fixed with blocking blocks, and the blocking blocks are located above the crushing roller; a plurality of crushing blocks are fixed on the outside of the two blocking blocks.

Preferably, an electric cylinder is fixedly connected to the interior of the crushing and screening box, and the electric cylinder is located above the No. 2 filter plate; a pressure plate is fixedly connected to the output end of the electric cylinder.

Preferably, a No. 2 short rod is fixedly connected to the bottom end of the pressure plate, and there are multiple No. 2 short rods; multiple No. 2 short rods correspond to the holes of the No. 2 filter plate.

Preferably, a threaded rod is fixed to the bottom end of the pressure plate; a threaded collar is rotatably connected to the top middle of the No. 2 filter plate; a scraper is fixed to the outside of the threaded collar; and a scraper is fixed to the outside of the threaded collar. A scraping groove is provided on the outside; a placing groove is formed on the bottom end of the pressure plate, and the placing groove corresponds to the shape of the scraping plate.

Preferably, a plurality of knocking blocks are fixed inside the crushing roller; a plurality of impact balls are provided inside the crushing roller.

The beneficial effects of the present invention are as follows:

1. The mobile crushing and screening equipment of the present invention is fixed on the top of the mobile frame through the crushing and screening box, and relies on the vehicle to pull the mobile frame and move it with two wheels to play a role in the mobile crushing and screening of coal mines. The output end of the hydraulic cylinder is used to drive the square plate to be supported on the ground, and is used with multiple top blocks to penetrate deeply into the particles and blocks to play a supporting and limiting role in the crushing and screening equipment. The crushing roller cooperates with the No. 1 The short rod rotates quickly to crush the mined coal. The No. 1 filter plate and the No. 2 filter plate are used to filter the broken coal to facilitate subsequent coal processing. The guide box is fixed on the No. 2 guide block with the No. 2 guide block. The top of the crushing and screening box plays a role in guiding and crushing the coal mine.

2. The mobile crushing and screening equipment of the present invention can crush the splashed coal for a second time by using the blocking block and the crushing block fixed above the crushing roller, and the output end of the electric cylinder is used to drive the pressure plate down. Pressure plays the role of squeezing and crushing the coal temporarily stored on the No. 2 filter plate. Multiple No. 2 short rods are used to fix the bottom end of the pressure plate. Multiple No. 2 short rods are inserted into the No. 2 plate as the pressure plate is pressed down. In the holes of the filter plate, the coal blocked in the holes of the No. 2 filter plate is reduced. The threaded rod and the threaded collar thread cooperate to drive the scraper to scrape the coal on the surface of the No. 2 filter plate, improving the efficiency of the No. 2 filter. The filtering effect of the plate is to use the impact ball to impact the percussion block when the crushing roller rotates, which has the effect of vibrating and cleaning the coal attached to the surface of the crushing roller.

Description of the drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Figure 1 is a plan view of the coal mining machine of the present invention;

Figure 2 is a perspective view of the present invention;

Figure 3 is a partial structural cross-sectional view of the crushing and screening box in the present invention;

Figure 4 is a schematic structural diagram of the medium pressure plate of the present invention;

Figure 5 is a schematic structural diagram of the scraper in the present invention;

Figure 6 is a schematic structural diagram of the square plate in the present invention;

Figure 7 is a partial structural cross-sectional view of the crushing roller in the present invention.

In the picture: 1. Crushing and screening box; 11. Servo motor; 12. Crushing roller; 13. No. 1 short rod; 14. No. 1 guide block; 15. Conveyor; 2. No. 1 filter plate; 21. Filter frame; 22. No. 2 filter plate; 3. Material guide box; 31. No. 2 guide block; 4. Blocking block; 41. Crushing block; 5. Electric cylinder; 51. Pressure plate; 6. No. 2 short Rod; 7. Threaded rod; 71. Threaded collar; 72. Scraper; 73. Placement slot; 8. Moving frame; 81. Tow hook; 82. Rotating shaft; 83. Wheel; 9. Hydraulic cylinder; 91. Square plate ; 92. Top block; 93. Percussion block; 94. Impact ball; 101. Equipment main base; 102. Processing transport machine.

Detailed ways

In order to make it easy to understand the technical means, creative features, objectives and effects achieved by the present invention, the present invention will be further elaborated below in conjunction with specific implementation modes.

As shown in Figures 1 to 3 and 7, a mobile crushing and screening equipment according to the embodiment of the present invention includes a main base 101 of the equipment; a processing transporter 102 is installed on the main base 101 of the equipment; A crushing and screening box 1 is fixedly connected to the outside of the main base 101 and away from the processing conveyor 102; a servo motor 11 is fixed to the outside of the crushing and screening box 1; a crushing roller 12 is fixedly connected to the output end of the servo motor 11 , and the crushing roller 12 is rotatably connected to the inside of the crushing and screening box 1; a plurality of No. 1 short rods 13 are fixed to the outside of the crushing roller 12; the inside of the crushing and screening box 1 and close to the bottom of the crushing roller 12 are symmetrical The No. 1 diversion block 14 is fixedly connected; a conveyor 15 is installed inside the crushing and screening box 1 and at the bottom of the crushing roller 12; a screening assembly is provided inside the crushing and screening box 1, and the screening assembly is used for Screening of coal mines; the bottom end of the crushing and screening box 1 is provided with a moving mechanism, which is used to cooperate with the position transfer of the crushing and screening box 1; when mining coal mines, the main base 101 of the equipment serves as the base of the entire coal mining machine The main structure, processing conveyor 102 and crushing and screening box 1 are installed on the top of the main base 101 of the equipment. The processing conveyor 102 is used to transport materials, and the crushing and screening box 1 is used to crush and screen coal. The crushing and screening box 1 It can be disassembled from the entire coal mining machine. First, the crushing and screening box 1 is fixed on the moving mechanism, and the front of the moving mechanism is connected to the vehicle for traction. The connected crushing and screening equipment is sent to the coal mine that needs to be driven, and the mined Coal is thrown into the crushing and screening box 1 from the top, and the coal falls between the crushing roller 12 and the No. 1 guide block 14. The output end of the servo motor 11 drives the crushing roller 12 to rotate rapidly. The No. 1 short rod 13 quickly crushes the coal on the No. 1 diversion block 14. The crushed coal falls to the screening assembly. The screening assembly carefully screens the broken coal, and finally the fine coal falls to the conveyor. 15 is transported out of the internal loading of the crushing and screening box 1. As the coal mine continues to be mined and the mining location continues to change, the vehicle tows the crushing and screening equipment to continue to move, thereby facilitating the crushing and screening equipment to mine minerals in a mobile manner.

As shown in Figures 1 to 3 and 6, the moving mechanism includes a moving frame 8, a tow hook 81, a rotating shaft 82, wheels 83 and a support assembly; the moving frame 8 is fixed on the bottom end of the crushing and screening box 1 ; A trailer hook 81 is fixedly connected to the outside of the mobile frame 8; a rotating shaft 82 is rotatably connected to the bottom end of the mobile frame 8; wheels 83 are fixedly connected to both ends of the rotating shaft 82; the support assembly is arranged on At the bottom of the mobile frame 8, the support assembly is used to park and support the crushing and screening box 1; during coal mining, the rear of the vehicle is connected to the trailer hook 81 installed outside the mobile frame 8, and the rotating shaft 82 supports the two wheels. 83 rotates at the bottom of the mobile frame 8. The vehicle pulls the mobile frame 8 and relies on the wheels 83 to rotate and move. The crushing and screening equipment is sent to the coal mine. The supporting components set up the crushing and screening equipment to work, thereby realizing the movement of the coal mine. style mining.

The support assembly includes a hydraulic cylinder 9, a square plate 91 and a top block 92; the hydraulic cylinder 9 is fixed on the bottom end of the mobile frame 8, and there are multiple hydraulic cylinders 9; the square plate 91 is fixed on the hydraulic The bottom end of the cylinder 9; a plurality of the top blocks 92 are fixed on the bottom end of the square plate 91; when the crushing and screening equipment is supported and limited, after the crushing and screening equipment moves to the coal mining position, the hydraulic cylinder 9 is used The output end of the hydraulic cylinder 9 extends downward, and two or four hydraulic cylinders 9 can be installed, depending on the actual weight of the crushing and screening equipment. The square plate 91 extends downward as the output end of the hydraulic cylinder 9 lifts the two wheels 83 overhead. Since there are many particles and lumps on the mine ground, the top block 92 relies on the top block 92 to contact the ground for support and penetrate deeply into the particles and lumps, thereby playing a role in supporting and limiting the mobile crushing and screening equipment.

As shown in Figures 1 to 3 and 5, the screening assembly includes a No. 1 filter plate 2, a filter frame 21 and a No. 2 filter plate 22; the No. 1 filter plate 2 is fixedly connected to the crushing screen. Inside the sub-box 1, the No. 1 filter plate 2 is located below the crushing roller 12, and the No. 1 filter plate 2 is tilted; when the coal is broken by multiple No. 1 short rods 13, the broken coal blocks fall to It is filtered on the No. 1 filter plate 2. After the coal mine is crushed, the finer coal will be filtered out by the No. 1 filter plate 2 and fall to the conveyor 15 for transportation and loading. The oversized coal falling on the No. 1 filter plate 2 The coal can roll down to the No. 2 filter plate 22 along with the inclination of the No. 1 filter plate 2. The filter frame 21 supports the No. 2 filter plate 22 to temporarily store the falling coal, thereby protecting the broken coal. The role of sorting and screening.

As shown in Figures 1 to 3, the top of the crushing and screening box 1 is fixed with a guide box 3; the inside of the guide box 3 is symmetrically fixed with a No. 2 guide block 31; when the coal mine is put into operation When crushing and screening the interior of the crushing and screening box 1, use the guide box 3 to be fixed at the feed port of the crushing and screening box 1, expand the feed diameter of the feed port of the crushing and screening box 1, and cooperate with the two No. 2 The guide block 31 is symmetrically fixed on the inner wall of the guide box 3. After the material enters the inside of the guide box 3, it falls to the middle of the crushing roller 12 with the slope guidance of the two No. 2 guide blocks 31, and can be crushed by multiple The No. 1 short rod 13 breaks quickly to improve the crushing effect of coal mines. At the same time, the two No. 2 guide blocks 31 are fixed above the crushing roller 12, which can block the splashing coal blocks crushed by the multiple No. 1 short rods 13. Reduce coal splashing out.

The top inner wall of the crushing and screening box 1 is symmetrically fixed with blocking blocks 4, and the blocking blocks 4 are located above the crushing roller 12; a plurality of crushing blocks 41 are fixed on the outside of the two blocking blocks 4; when the input When the coal inside the crushing and screening box 1 is crushed, the coal falls to the outside of the crushing roller 12 and is crushed by the No. 1 short rod 13. Since the rotation speed of the crushing roller 12 is too fast, the broken coal is easy to splash, and the blocking block 4 is used to fix it. On both sides of the top of the crushing roller 12, the splash of coal is reduced, and multiple broken blocks 41 are fixed outside the bottom end of the blocking block 4. The splashed coal hits the multiple broken blocks 41, which can achieve the purpose of crushing the splashed coal. The function of secondary crushing improves the mining effect of coal.

As shown in Figures 1 to 5, an electric cylinder 5 is fixedly connected to the interior of the crushing and screening box 1, and the electric cylinder 5 is located above the No. 2 filter plate 22; the output end of the electric cylinder 5 is fixedly connected to Pressing plate 51; when part of the coal filtered out by the No. 1 filter plate 2 falls on the No. 2 filter plate 22 for temporary storage, the output end of the electric cylinder 5 is extended downward to drive the pressure plate 51 to the No. 2 filter plate. The coal blocks on the No. 2 filter plate 22 are squeezed and broken, thereby achieving the crushing effect on the temporarily stored coal blocks falling on the No. 2 filter plate 22.

The bottom end of the pressure plate 51 is fixed with the No. 2 short rod 6, and there are multiple No. 2 short rods 6; the plurality of the No. 2 short rods 6 correspond to the holes of the No. 2 filter plate 22; when facing After the coal on the No. 2 filter plate 22 is broken, the No. 2 filter plate 22 filters the broken coal, and the No. 2 filter plate 22 filters the coal for a long time, and part of the coal easily adheres to the No. 2 filter plate 22 When the coal on the No. 2 filter plate 22 is squeezed and broken by the pressure plate 51, insert a plurality of No. 2 short rods 6 into the holes of the No. 2 filter plate 22 to crush the coal on the No. 2 filter plate 22. The holes of No. 22 are dredged, thereby reducing the blockage of part of the coal in the holes of No. 2 filter plate 22.

A threaded rod 7 is fixedly connected to the bottom end of the pressure plate 51; a threaded collar 71 is rotatably connected to the top middle of the second filter plate 22; a scraper 72 is fixedly connected to the outside of the threaded collar 71; A scraping groove is provided on the outside of the scraper 72; a placement groove 73 is provided at the bottom end of the pressure plate 51, and the placement groove 73 corresponds to the shape of the scraper 72; when the coal temporarily stored on the No. 2 filter plate 22 is During extrusion and crushing, the pressure plate 51 drives the threaded rod 7 to slide down synchronously, and the threaded rod 7 is inserted into the internal thread of the threaded collar 71 to fit. As the threaded rod 7 continues to slide down, the threaded collar 71 drives multiple scrapers 72 to rotate rapidly. A scraper 72 cooperates with the scraper groove to scrape the once-broken coal on the surface of the No. 2 filter plate 22, thereby improving the effect of filtering the coal on the No. 2 filter plate 22. When the pressure plate 51 presses against the No. 2 filter plate 22 When upward, the scraper 72 can be retracted in the placing groove 73 .

As shown in Figures 1 to 3 and 7, a plurality of knocking blocks 93 are fixed inside the crushing roller 12; a plurality of impact balls 94 are provided inside the crushing roller 12; when the crushing roller 12 cooperates with multiple When the No. 1 short rod 13 rotates rapidly to crush coal, because the partially crushed coal is easy to adhere to the surface of the crushing roller 12, coal adhering to the surface of the crushing roller 12 for a long time increases the load of the servo motor 11 and affects the rotation speed, using multiple impact balls 94 Placed inside the crushing roller 12, when the crushing roller 12 rotates rapidly, it continuously hits multiple knocking blocks 93 to generate vibrations. The vibration causes the coal on the surface of the crushing roller 12 to fall off, thereby reducing the adhesion of coal on the surface of the crushing roller 12.

Working process: When mining coal, the main base 101 of the equipment serves as the main structure of the entire coal mining machine. The processing conveyor 102 and the crushing and screening box 1 are installed on the top of the main base 101 of the equipment. The processing conveyor 102 is used to transport materials. , the crushing and screening box 1 is used to crush and screen coal. The crushing and screening box 1 can be disassembled from the entire coal mining machine. First, the crushing and screening box 1 is fixed on the moving mechanism, and the front of the moving mechanism is connected to the vehicle. Traction, send the connected crushing and screening equipment to the coal mine that needs to be driven, and put the mined coal into the interior of the crushing and screening box 1 from the top, and the coal will fall between the crushing roller 12 and the No. 1 diversion block 14. The output end of the servo motor 11 drives the crushing roller 12 to rotate rapidly. Multiple No. 1 short rods 13 outside the crushing roller 12 quickly crush the coal on the No. 1 diversion block 14. The crushed coal falls onto the screening assembly. , the broken coal is carefully screened by the screening assembly, and finally the fine coal falls on the conveyor 15 and is transported out of the crushing and screening box 1 for loading. With the continuous mining of the coal mine, the mining location continues to change, and the vehicle traction The crushing and screening equipment continues to move, thereby facilitating the crushing and screening equipment to mine minerals in a mobile manner; when mining coal, the rear of the vehicle is connected to the trailer hook 81 installed outside the mobile frame 8, and the rotating shaft 82 supports two The wheels 83 rotate at the bottom of the mobile frame 8, and the vehicle pulls and pulls the mobile frame 8 to rotate and move by the wheels 83, sending the crushing and screening equipment to the coal mining place, and the supporting components set up the crushing and screening equipment to work, thereby realizing the control of the coal mine. Mobile mining; when the crushing and screening equipment is supported and limited, after the crushing and screening equipment moves to the coal mining position, the output end of the hydraulic cylinder 9 is used to extend downward. Two or four hydraulic cylinders 9 can be set, depending on the crushing Depends on the actual weight of the screening equipment, the square plate 91 extends downward with the output end of the hydraulic cylinder 9, and lifts the two wheels 83 overhead. Since there are many particles and lumps on the mine ground, the top block 92 is required. It contacts the ground support and penetrates deep into the particles and blocks, thereby playing a role in supporting and limiting the mobile crushing and screening equipment;

When the coal mine is broken by multiple No. 1 short rods 13, the broken coal blocks fall on the No. 1 filter plate 2 for filtering. After the coal mine is broken, the finer coal will be filtered out by the No. 1 filter plate 2 and fall to the conveyor. The coal that is too large and falls on the No. 1 filter plate 2 can roll down to the No. 2 filter plate 22 along with the slope of the No. 1 filter plate 2 and is supported by the filter frame 21 The No. 2 filter plate 22 temporarily stores the falling coal and plays a role in sorting and screening the broken coal;

When the coal mine is put into the internal crushing and screening of the crushing and screening box 1, the guide box 3 is fixed at the feed port of the crushing and screening box 1 to expand the feed diameter of the feed port of the crushing and screening box 1, and The two No. 2 guide blocks 31 are symmetrically fixed on the inner wall of the guide box 3. After the material enters the inside of the guide box 3, it falls to the middle of the crushing roller 12 along the slope guidance of the two No. 2 guide blocks 31. , can be quickly broken by multiple No. 1 short rods 13, improving the crushing effect of mining coal. At the same time, two No. 2 guide blocks 31 are fixed above the crushing roller 12, and can crush multiple No. 1 short rods 13. The coal blocks are blocked to reduce the coal splashing out;

When the coal that is put into the crushing and screening box 1 is crushed, the coal falls to the outside of the crushing roller 12 and is crushed by the No. 1 short rod 13. Since the rotation speed of the crushing roller 12 is too fast, the crushed coal is easy to splash, and the blockage is used. The blocks 4 are fixed on both sides of the top of the crushing roller 12 to reduce the splashing of coal blocks, and are fixed on the outside of the bottom end of the blocking block 4 with multiple broken blocks 41. The splashed coal blocks hit the multiple broken blocks 41, which can achieve splash control. The secondary crushing effect of coal blocks improves the coal mining effect;

When part of the coal filtered out by the No. 1 filter plate 2 falls on the No. 2 filter plate 22 and is temporarily stored, the output end of the electric cylinder 5 is extended downward to drive the pressure plate 51 to press the pressure plate 51 against the No. 2 filter plate 22. The coal blocks are squeezed and broken, thereby crushing the temporarily stored coal blocks falling on the No. 2 filter screen plate 22; when the coal blocks on the No. 2 filter screen plate 22 are crushed, the No. 2 filter screen plate 22 will The coal is filtered, and the No. 2 filter plate 22 filters the coal for a long time. Part of the coal is easy to adhere to the holes of the No. 2 filter plate 22 and cause blockage inside. The pressure plate 51 is used to filter the coal on the No. 2 filter plate 22. During extrusion and crushing, a plurality of No. 2 short rods 6 are inserted into the holes of the No. 2 filter plate 22 to clear the holes of the No. 2 filter plate 22, thereby reducing partial coal blockage in the holes of the No. 2 filter plate 22;

When the coal temporarily stored on the No. 2 filter plate 22 is squeezed and broken, the pressure plate 51 drives the threaded rod 7 to slide down simultaneously. The threaded rod 7 is inserted into the internal thread of the threaded collar 71 to fit. As the threaded rod 7 continues to slide down, The threaded collar 71 drives multiple scrapers 72 to rotate rapidly, and the multiple scrapers 72 cooperate with the scraping grooves to scrape the once-broken coal on the surface of the No. 2 filter plate 22, thereby improving the filtration of coal on the No. 2 filter plate 22. The effect is that when the pressing plate 51 is pressed above the No. 2 filter plate 22, the scraper 72 can be contracted in the placing groove 73;

When the crushing roller 12 cooperates with multiple No. 1 short rods 13 to rapidly rotate to crush coal, because the partially crushed coal is easy to adhere to the surface of the crushing roller 12, the coal attached to the surface of the crushing roller 12 for a long time increases the load of the servo motor 11 and affects the rotation speed. Multiple impact balls 94 are placed inside the crushing roller 12, and when the crushing roller 12 rotates rapidly, they continuously hit multiple knocking blocks 93 to generate vibrations. The vibration causes the coal on the surface of the crushing roller 12 to fall off, thereby reducing the amount of coal in the crushing roller 12. Surface attachment.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have other aspects. Various changes and modifications are possible, which fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A mobile crushing and screening device, characterized in that: comprises a main base (101) of the equipment; a processing conveyor (102) is arranged on the equipment main base (101); the crushing and screening box (1) is fixedly connected to the outside of the equipment main base (101) and far away from the processing conveyor (102); a servo motor (11) is fixedly connected to the outside of the crushing and screening box (1); the output end of the servo motor (11) is fixedly connected with a crushing roller (12), and the crushing roller (12) is rotationally connected in the crushing and screening box (1); a plurality of first short rods (13) are fixedly connected to the outside of the crushing roller (12); a first guide block (14) is symmetrically and fixedly connected inside the crushing and screening box (1) and below the crushing roller (12); a conveyor (15) is arranged inside the crushing and screening box (1) and at the bottom of the crushing roller (12); a screening component is arranged in the crushing screening box (1) and is used for screening coal mines; the bottom of the crushing and screening box (1) is provided with a moving mechanism, and the moving mechanism is used for matching with the position transfer of the crushing and screening box (1).

2. A mobile crushing and screening apparatus according to claim 1, characterized in that: the moving mechanism comprises a moving frame (8), a trailer hook (81), a rotating shaft (82), wheels (83) and a supporting component; the movable frame (8) is fixedly connected to the bottom end of the crushing and screening box (1); a trailer hook (81) is fixedly connected to the outside of the movable frame (8); a rotating shaft (82) is rotatably connected inside the bottom end of the movable frame (8); wheels (83) are fixedly connected to two ends of the rotating shaft (82); the support component is arranged at the bottom of the movable frame (8) and is used for parking and supporting the crushing and screening box (1).

3. A mobile crushing and screening apparatus according to claim 2, characterized in that: the support assembly comprises a hydraulic cylinder (9), a square plate (91) and a top block (92); the hydraulic cylinders (9) are fixedly connected to the bottom ends of the movable frames (8), and a plurality of hydraulic cylinders (9) are arranged; the square plate (91) is fixedly connected to the bottom end of the hydraulic cylinder (9); the plurality of top blocks (92) are fixedly connected to the bottom end of the square plate (91).

4. A mobile crushing and screening apparatus according to claim 1, characterized in that: the screening component comprises a first filter screen plate (2), a filter screen frame (21) and a second filter screen plate (22); the first filter screen plate (2) is fixedly connected in the crushing and screening box (1), the first filter screen plate (2) is positioned below the crushing roller (12), and the first filter screen plate (2) is obliquely arranged.

5. A mobile crushing and screening apparatus according to claim 1, characterized in that: the top end of the crushing and screening box (1) is fixedly connected with a guide box (3); and a second guide block (31) is symmetrically and fixedly connected in the guide box (3).

6. A mobile crushing and screening apparatus according to claim 1, characterized in that: the top inner wall of the crushing and screening box (1) is symmetrically and fixedly connected with a blocking block (4), and the blocking block (4) is positioned above the crushing roller (12); a plurality of broken blocks (41) are fixedly connected to the outer parts of the two blocking blocks (4).

7. A mobile crushing and screening apparatus according to claim 4, wherein: an electric cylinder (5) is fixedly connected in the crushing and screening box (1), and the electric cylinder (5) is positioned above the second filter screen plate (22); the output end of the electric cylinder (5) is fixedly connected with a pressing plate (51).

8. A mobile crushing and screening apparatus according to claim 7, wherein: the bottom end of the pressing plate (51) is fixedly connected with a second short rod (6), and a plurality of second short rods (6) are arranged; and a plurality of second short rods (6) correspond to holes of the second filter screen plate (22).

9. A mobile crushing and screening apparatus according to claim 7, wherein: a threaded rod (7) is fixedly connected to the bottom end of the pressing plate (51); the middle part of the top end of the second filter screen plate (22) is rotationally connected with a threaded lantern ring (71); a scraper (72) is fixedly connected to the outer part of the threaded collar (71); a scraping groove is formed in the outer portion of the scraping plate (72); a placing groove (73) is formed in the bottom end of the pressing plate (51), and the placing groove (73) corresponds to the scraper (72) in shape.

10. A mobile crushing and screening apparatus according to claim 1, characterized in that: a plurality of knocking blocks (93) are fixedly connected in the crushing roller (12); a plurality of impact balls (94) are arranged inside the crushing roller (12).