Graded crushing device for coal

Abstract

The invention discloses a graded crushing device for coal, and belongs to the technical field of crushing devices.The graded crushing device comprises a shell, a feeding port is formed in the shell, a screening part is arranged in the shell, materials entering from the feeding port can fall on the screening part, a discharging channel is arranged below the screening part, and crushing rollers are arranged in the discharging channel; the screening part is obliquely arranged, a first screening plate area and a second screening plate area are arranged on the screening part, the first screening plate area is located above the second screening plate area, materials firstly pass through the first screening plate area and then slide to the second screening plate area, and a stopping block is arranged between the first screening plate area and the second screening plate area. When the device is used, materials of different sizes can be distinguished and crushed so as to guarantee the crushing effect, the materials which cannot be crushed by the device can be pushed out of the device, the requirements of users are met, and it can be guaranteed that the device can be used for a long time.

Description

Technical Field

[0001] The invention belongs to the technical field of crushing devices, in particular to a classification crushing device for coal. Background Art

[0002] Existing coal crushing devices in most cases adopt a relatively simple processing method, that is, mixing coal of different sizes together for crushing. However, this processing method often cannot meet the diversified needs of modern industrial production, because coal particles of different sizes have different characteristics and requirements in terms of combustion, transportation and storage. Summary of the invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides the following technical solutions: a coal grading and crushing device, comprising a shell, a feed port is arranged on the shell, a screening element is arranged inside the shell, materials entering from the feed port can fall on the screening element, a material dropping channel is arranged below the screening element, a crushing roller is arranged in the material dropping channel,

[0004] The screening element is arranged obliquely, and a first screening plate area and a second screening plate area are arranged on the screening element. The first screening plate area is located above the second screening plate area. The material first passes through the first screening plate area and then slides to the second screening plate area. A blocking block is arranged between the first screening plate area and the second screening plate area. There are two material dropping channels, which correspond to the first screening plate area and the second screening plate area respectively.

[0005] A fin plate is fixedly connected to the side of the screening element, and a rack is arranged on the fin plate. A motor is fixedly connected to the side of the housing, and a first gear is fixedly connected to the output end of the motor. The first gear meshes with the rack. When the motor is running, the screening element can reciprocate.

[0006] A material pushing assembly is also provided at the end of the screening element, one end of which extends out of the housing, and along with the reciprocating motion of the screening element, the material pushing assembly can push the materials gathered at the end of the screening element out of the housing.

[0007] Furthermore, the pushing assembly includes a protrusion, a stirring roller and a blanking plate. The protrusion is fixed at the end of the screening element and is arc-shaped. The stirring roller is located above the protrusion. The stirring roller is installed on the screening element and can rotate. A blanking plate is installed on the side of the protrusion away from the screening element. The stirring roller includes a rotating shaft and a tooth portion, and the tooth portion is evenly distributed on the surface of the rotating shaft.

[0008] Furthermore, a toggle shaft is fixedly connected to one end of the rotating shaft, and a slot is opened in the outer shell, the toggle shaft can be inserted into the slot, and an arc block is arranged on the surface of the toggle shaft. There are multiple arc blocks, and they are evenly distributed on the surface of the toggle shaft. A toggle block is arranged in the slot, and the toggle block can cooperate with the arc block so that when the screening element slides to one side, the toggle block can push the arc block, thereby causing the toggle shaft to rotate.

[0009] Furthermore, a fixed block is fixedly connected to the inner wall of the slot, a slide groove is opened in the fixed block, the toggle block can be inserted into the slide groove, and the toggle block is connected to the inner wall of the slide groove by a spring. Between two adjacent arc blocks, the tail end of the previous arc block passes over the plane where the head end of the rear arc block is located, so that when the screening element slides to the other side, the toggle block can slide and pass over the arc block, so that the toggle shaft can only rotate in one direction.

[0010] Furthermore, a connecting plate is provided at the connection between the first sieve plate area and the second sieve plate area, and the blocking block is installed on the connecting plate. There are several blocking blocks, and when the blocking block is in the initial position, the blocking block and the screening element have a certain angle. The several blocking blocks are connected together by a fixed shaft, and a rotatable control rod is provided outside the outer shell, and when the control rod is rotated, the fixed shaft can rotate to make the blocking block tilt up / down.

[0011] Furthermore, a first tooth plate and a second tooth plate are provided in the outer shell, and a second gear is provided outside the control rod. The first tooth plate and the second tooth plate are respectively located on both sides of the second gear, and the second gear is respectively meshed with the first tooth plate and the second tooth plate, so that when the second gear rotates, the first tooth plate can extend and the second tooth plate can be retracted, or the second tooth plate extends and the first tooth plate is retracted. A worm gear is fixed outside the fixed shaft, and the first tooth plate and the second tooth plate can rotate the worm gear in different directions.

[0012] Furthermore, a rotatable rotating block is provided in the screening element, and an upper and lower tooth areas are provided on the surface of the rotating block. Each tooth area cooperates with the first tooth plate and the second tooth plate respectively, and smooth sections are provided on the two tooth areas respectively. A worm is fixedly connected to the upper end of the rotating block, and the worm cooperates with the worm wheel.

[0013] Furthermore, a mounting block is fixedly connected to the outside of the housing, and the control rod is arranged in the mounting block.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] When the device is used, it can not only distinguish and crush materials of different sizes to ensure the crushing effect, but also push the materials that cannot be crushed by the device out of the device, which not only meets the needs of users, but also ensures that the device can be used for a long time;

[0016] By providing the protrusions, the materials can be blocked to prevent them from sliding out of the device directly, thereby ensuring that the materials that meet the size can fall through the second screen plate area. At the same time, the rotation of the paddle roller can push the larger materials outward, so that they pass the protrusions and fall on the unloading plate, and then are discharged out of the shell;

[0017] When the user turns the control lever, the control lever causes the first tooth plate to extend, at which time the second tooth plate is retracted, and the first tooth plate can cooperate with the rotating block, so that the rotating block rotates until the smooth section on the tooth area is opposite to the first tooth plate, and the rotating block no longer rotates (at this position, when the second tooth plate is extended, the second tooth plate can cooperate with another tooth area), and as the rotating block rotates, the worm rotates accordingly, and the worm gear drives the fixed shaft to rotate, thereby causing the blocking block to tilt up, and when the material is pressed on the blocking block, the blocking block will not fall down, and when the user wants to put down the blocking block, he only needs to turn the control lever in the opposite direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the internal structure of one side of the whole invention;

[0020] Figure 2 It is a schematic diagram of the internal top view of the outer shell when the blocking block of the present invention has multiple blocks;

[0021] Figure 3 It is a structural schematic diagram of the shifting roller of the present invention;

[0022] Figure 4 It is a schematic diagram of the combination of the toggle shaft, the arc block and the toggle block of the present invention;

[0023] Figure 5 It is a schematic diagram of the internal partial structure of the housing of the present invention;

[0024] Figure 6 It is a schematic diagram of the internal partial structure of the screening element of the present invention;

[0025] Figure 7 It is a schematic diagram of the transmission structure of the control rod and the fixed shaft of the present invention;

[0026] Figure 8 This is a schematic diagram of the internal top view of the housing when the blocking block of the present invention is in the shape of a plate.

[0027] In the figure: 1. shell; 2. feed inlet; 3. screening element; 4. material discharge channel; 5. crushing roller; 6. blocking block; 7. protrusion; 8. toggle roller; 9. material discharge plate; 10. fin plate; 11. motor; 12. first gear; 13. first sieve plate area; 14. second sieve plate area; 15. toggle shaft; 16. slot; 17. control lever; 18. arc block; 19. toggle block; 20. fixed block; 21. spring; 22. first tooth plate; 23. second tooth plate; 24. worm; 25. rotating block; 26. worm wheel; 27. fixed shaft. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] Depend on Figure 1-8 The present invention discloses a coal classification crushing device, comprising a shell 1, a feed port 2 is arranged on the shell 1, a screening element 3 is arranged inside the shell 1, materials entering from the feed port 2 can fall on the screening element 3, a material drop channel 4 is arranged below the screening element 3, a crushing roller 5 is arranged in the material drop channel 4,

[0030] When the device is used, the coal to be crushed enters the housing 1 through the feed port 2, and then falls into the material drop channel 4 after being screened by the screening element 3, and enters the crushing roller 5 to be crushed. After being crushed, the material falls down.

[0031] The screening element 3 is arranged at an angle to facilitate the sliding of materials, and a first screen plate area 13 and a second screen plate area 14 are arranged on the screening element 3. The screening capabilities of the first screening area 13 and the second screening area 14 are different. Smaller particles can fall through the first screening area 13, and larger materials can fall through the second screening area 14. The first screen plate area 13 is located above the second screen plate area 14. The material first passes through the first screen plate area 13 and then slides to the second screen plate area 14. A blocking block 6 is arranged between the first screen plate area 13 and the second screen plate area 14. The blocking block 6 can block the material to a certain extent to ensure that smaller materials can be screened by the first screening area 13. The material dropping channels 4 have two, and the two material dropping channels 4 correspond to the first screen plate area 13 and the second screen plate area 14 respectively.

[0032] In order to prevent the material from gathering on the screening element 3 and not falling, the following technical solution is provided so that the screening element 3 can slide back and forth. Of course, this technical solution can also be implemented by using the structure in the prior art. A fin plate 10 is fixedly connected to the side of the screening element 3, and a rack is provided on the fin plate 10. A motor 11 is fixedly connected to the side of the housing 1. A first gear 12 is fixedly connected to the output end of the motor 11. The first gear 12 meshes with the rack. When the motor 11 is running, the screening element 3 can reciprocate.

[0033] A material pushing assembly is also provided at the end of the screening element 3, one end of which extends out of the housing 1, and as the screening element 3 reciprocates, the material pushing assembly can push the material gathered at the end of the screening element 3 out of the housing 1.

[0034] The material may be mixed with some larger-sized materials that cannot pass through the second screen plate area 14. This part of the material gathers at the end of the screening element 3 and is pushed out of the device by the pushing assembly to avoid clogging of the device.

[0035] When the device is in use, it can not only distinguish and crush materials of different sizes to ensure the crushing effect, but also push materials that cannot be crushed by the device out of the device, which not only meets the needs of users but also ensures that the device can be used for a long time.

[0036] The pushing assembly includes a protrusion 7, a stirring roller 8 and a discharge plate 9. The protrusion 7 is fixed at the end of the screening element 3, and the protrusion 7 is arc-shaped. The stirring roller 8 is located above the protrusion 7. The stirring roller 8 is installed on the screening element 3 and can rotate. The discharge plate 9 is installed on the side of the protrusion 7 away from the screening element 3. The stirring roller 8 includes a rotating shaft and a tooth portion, and the tooth portion is evenly distributed on the surface of the rotating shaft.

[0037] By providing the protrusion 7, the material can be blocked to prevent it from directly sliding out of the device, thereby ensuring that the material that meets the size can fall through the second screen plate area 14. At the same time, the rotation of the paddle roller 8 can push the larger material outward so that it passes over the protrusion 7 and falls on the discharge plate 9, and is then discharged out of the outer shell 1.

[0038] In order to enable the toggle roller 8 to rotate, the following technical scheme is provided: a toggle shaft 15 is fixedly connected to one end of the rotating shaft, a slot 16 is provided in the outer shell 1, the toggle shaft 15 can be inserted into the slot 16, an arc block 18 is provided on the surface of the toggle shaft 15, there are multiple arc blocks 18, and they are evenly distributed on the surface of the toggle shaft 15, a toggle block 19 is provided in the slot 16, the toggle block 19 can cooperate with the arc block 18, so that when the screening element 3 slides to one side, the toggle block 19 can push the arc block 18, thereby causing the toggle shaft 15 to rotate.

[0039] Since the screening element 3 reciprocates, in order to prevent the toggle roller 8 from also reciprocating and pulling the material discharged out of the shell 1 back into the shell 1, the following technical scheme is provided, so that the rotating roller 8 can only be actively moved in one direction, a fixed block 20 is fixedly connected to the inner wall of the slot 16, a slide groove is provided in the fixed block 20, a toggle block 19 can be inserted into the slide groove, and the toggle block 19 is connected to the inner wall of the slide groove by a spring 21, between two adjacent arc blocks 18, the tail end of the previous arc block 18 passes over the plane where the head end of the next arc block 18 is located, so that when the screening element 3 slides to the other side, the toggle block 19 can slide and pass over the arc block 18, so that the toggle shaft 15 can only rotate in one direction.

[0040] like Figure 4 As shown, when the toggle shaft 15 moves to the left, the toggle block 19 cooperates with one of the arc blocks 18, so that the toggle shaft 15 rotates, and when the toggle block 19 moves to the end of the arc block 18, the toggle shaft 15 moves in the opposite direction (backward), and then the toggle block 19 contacts the next arc block 18. At this time, the toggle block 19 can slide and the spring 21 is compressed. When the toggle block 19 is separated from the arc block 18, the spring 21 resets the toggle block 19, and then the rotating shaft 15 moves to the left again, and the toggle block 19 can cooperate with the arc block 18 again, so that the rotating shaft 15 can only rotate in one direction.

[0041] In order to allow the material to stay on the first screen plate area 13 for a sufficient time, the following technical solution is provided: a connecting plate is provided at the connection between the first screen plate area 13 and the second screen plate area 14, the blocking block 6 is installed on the connecting plate, there are several blocking blocks 6, and when the blocking block 6 is in the initial position, the blocking block 6 has a certain angle with the screening element 3, and several blocking blocks 6 are connected together by a fixed shaft 27, and a rotatable control rod 17 is provided outside the housing 1, and when the control rod 17 rotates, the fixed shaft 27 can rotate to make the blocking block 6 tilt up / down. Of course, when implementing, the blocking block 6 can also be set to a plate-like structure.

[0042] During the use of the present device, in order to control the position of the blocking block 6 without stopping the machine, the following technical scheme is provided: a first tooth plate 22 and a second tooth plate 23 are provided in the housing 1, and a second gear is provided outside the control rod 17, the first tooth plate 22 and the second tooth plate 23 are respectively located on both sides of the second gear, and the second gear is respectively meshed with the first tooth plate 22 and the second tooth plate 23, so that when the second gear rotates, the first tooth plate 22 can extend and the second tooth plate 23 can be retracted, or the second tooth plate 23 extends and the first tooth plate 22 is retracted, and a worm gear 26 is fixedly connected to the outside of the fixed shaft 27, and the first tooth plate 22 and the second tooth plate 23 can rotate the worm gear 26 in different directions.

[0043] A rotatable rotating block 25 is also provided in the screening element 3. The surface of the rotating block 25 is provided with upper and lower tooth areas. Each tooth area cooperates with the first tooth plate 22 and the second tooth plate 23 respectively, and smooth sections are provided on the two tooth areas respectively. A worm 24 is fixedly connected to the upper end of the rotating block 25, and the worm 24 cooperates with the worm wheel 26.

[0044] A mounting block is fixedly connected to the outside of the housing 1, and the control rod 17 is arranged in the mounting block. The control rod 17 and the mounting block can be threadedly connected. The user can control the control rod 17 by using a wrench, and the threaded connection has a certain friction force, so when the rotating block 25 cooperates with the first tooth plate 22, the control rod 17 will not be pushed.

[0045] When the user rotates the control lever 17, the control lever 17 extends the first tooth plate 22, at which time the second tooth plate 23 is retracted, and the first tooth plate 22 can cooperate with the rotating block 25, so that the rotating block 25 rotates until the smooth section on the tooth area is opposite to the first tooth plate 22, and the rotating block 25 no longer rotates (at this position, when the second tooth plate 23 extends, the second tooth plate 23 can cooperate with another tooth area), and as the rotating block 25 rotates, the worm 24 rotates accordingly, and then the worm wheel 26 drives the fixed shaft 27 to rotate, thereby causing the blocking block 6 to tilt, and when the material is pressed on the blocking block 6, the blocking block 6 will not fall, and when the user wants to put down the blocking block 6, he only needs to rotate the control lever 17 in the opposite direction.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal classification crushing device, characterized in that: The invention comprises a housing (1), wherein a feed port (2) is arranged on the housing (1), a screening element (3) is arranged inside the housing (1), materials entering from the feed port (2) can fall on the screening element (3), a material drop channel (4) is arranged below the screening element (3), and a crushing roller (5) is arranged inside the material drop channel (4), The screening element (3) is arranged obliquely, and a first screening plate area (13) and a second screening plate area (14) are provided on the screening element (3), the first screening plate area (13) is located above the second screening plate area (14), the material first passes through the first screening plate area (13) and then slides to the second screening plate area (14), and a blocking block (6) is provided between the first screening plate area (13) and the second screening plate area (14), the material drop channel (4) has two, and the two material drop channels (4) correspond to the first screening plate area (13) and the second screening plate area (14) respectively, A fin plate (10) is fixedly connected to the side of the screening element (3), and a rack is arranged on the fin plate (10). A motor (11) is fixedly connected to the side of the housing (1), and a first gear (12) is fixedly connected to the output end of the motor (11). The first gear (12) meshes with the rack. When the motor (11) is running, the screening element (3) can reciprocate. A material pushing assembly is also provided at the end of the screening element (3), one end of the material pushing assembly extends out of the outer shell (1), and as the screening element (3) reciprocates, the material pushing assembly can push the material gathered at the end of the screening element (3) out of the outer shell (1).

2. A coal classification and crushing device according to claim 1, characterized in that: The pushing assembly comprises a protrusion (7), a stirring roller (8) and a material discharge plate (9); the protrusion (7) is fixed at the end of the screening element (3), and the protrusion (7) is arc-shaped; the stirring roller (8) is located above the protrusion (7); the stirring roller (8) is mounted on the screening element (3) and is rotatable; a material discharge plate (9) is mounted on the side of the protrusion (7) away from the screening element (3); the stirring roller (8) comprises a rotating shaft and a tooth portion, and the tooth portion is evenly distributed on the surface of the rotating shaft.

3. A coal classification and crushing device according to claim 2, characterized in that: A toggle shaft (15) is fixedly connected to one end of the rotating shaft, a slot (16) is provided in the housing (1), the toggle shaft (15) can be inserted into the slot (16), an arc block (18) is provided on the surface of the toggle shaft (15), a plurality of arc blocks (18) are provided, and the arc blocks (18) are evenly distributed on the surface of the toggle shaft (15), a toggle block (19) is provided in the slot (16), the toggle block (19) can cooperate with the arc block (18), so that when the screening element (3) slides to one side, the toggle block (19) can push the arc block (18), thereby causing the toggle shaft (15) to rotate.

4. A coal classification and crushing device according to claim 3, characterized in that: A fixed block (20) is fixedly connected to the inner wall of the slot (16), a slide groove is provided in the fixed block (20), a toggle block (19) can be inserted into the slide groove, and the toggle block (19) is connected to the inner wall of the slide groove via a spring (21). Between two adjacent arc blocks (18), the tail end of the previous arc block (18) passes over the plane where the head end of the next arc block (18) is located, so that when the screening element (3) slides to the other side, the toggle block (19) can slide and pass over the arc block (18), so that the toggle shaft (15) can only rotate in one direction.

5. A coal classification and crushing device according to claim 1, characterized in that: A connecting plate is provided at the connection between the first sieve plate area (13) and the second sieve plate area (14), and the blocking block (6) is mounted on the connecting plate. There are a plurality of blocking blocks (6), and when the blocking blocks (6) are in an initial position, the blocking blocks (6) and the screening element (3) have a certain angle. The plurality of blocking blocks (6) are connected together via a fixed shaft (27). A rotatable control rod (17) is provided outside the housing (1), and when the control rod (17) is rotated, the fixed shaft (27) can be rotated to cause the blocking blocks (6) to tilt up / down.

6. A coal classification and crushing device according to claim 5, characterized in that: A first toothed plate (22) and a second toothed plate (23) are arranged inside the housing (1), and a second gear is arranged outside the control rod (17). The first toothed plate (22) and the second toothed plate (23) are respectively located on both sides of the second gear, and the second gear is respectively meshed with the first toothed plate (22) and the second toothed plate (23), so that when the second gear rotates, the first toothed plate (22) can extend and the second toothed plate (23) can be retracted, or the second toothed plate (23) can extend and the first toothed plate (22) can be retracted. A worm wheel (26) is fixedly connected outside the fixed shaft (27), and the first toothed plate (22) and the second toothed plate (23) can rotate the worm wheel (26) in different directions.

7. A coal classification and crushing device according to claim 6, characterized in that: A rotatable rotating block (25) is also provided in the screening element (3). The surface of the rotating block (25) is provided with upper and lower tooth areas. Each tooth area is respectively matched with the first tooth plate (22) and the second tooth plate (23). Smooth sections are respectively provided on the two tooth areas. A worm (24) is fixedly connected to the upper end of the rotating block (25). The worm (24) is matched with a worm wheel (26).

8. A coal classification and crushing device according to claim 7, characterized in that: A mounting block is fixedly connected to the outside of the housing (1), and the control rod (17) is arranged inside the mounting block.

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