Layered coal crusher

Abstract

The layered coal crusher comprises a main machine base, and a bearing table, a conveying belt and a collecting box are installed on the main machine base; a first motor and a material distribution box are installed on the bearing table. Two main tooth rollers are mounted in the material distribution box; the two main tooth rollers are connected with a smashing control assembly matched with the first motor. An inverted-U-shaped smashing base is further installed on the main machine base. A secondary smashing assembly is installed on the upper portion of the inverted-U-shaped smashing base. By controlling the two main tooth rollers to rotate in different directions and controlling the main pressing plate to slide up and down, double-layer automatic crushing of coal is achieved, and the crushing effect is relatively thorough. In the primary crushing process, the distance between the two main tooth rollers can be automatically adjusted, and the particle size of crushed coal can be controlled. The whole smashing process is convenient to control, the manual participation amount is small, and a large amount of manual labor can be saved.

Description

Technical Field

[0001] This invention relates to the field of coal resource mining and processing, specifically a layered coal crusher. Background Technology

[0002] Coal resources are one of the essential energy sources needed by humankind in daily life. After coal is mined, its large size makes it inconvenient to use, so appropriate mechanical equipment is needed to crush these large pieces of coal into small particles or powder.

[0003] Chinese invention patent application number CN93231930.0 discloses a coal crusher, which belongs to the category of machinery for crushing, pulverizing, or grinding. It includes a shell with an inlet and an outlet, inside which is a vertical main shaft. At least a portion of the shell is truncated conical in shape, and the length of the chain fixed to the outer perimeter of the shell is adapted to the internal space of the shell. Using this invention, coal blocks can be thoroughly crushed.

[0004] Although the aforementioned coal crusher can complete the coal crushing work, the crushing effect is relatively poor because it only uses one-time crushing. Summary of the Invention

[0005] In order to overcome the defects of the above-mentioned technology, the present invention proposes a layered coal crusher that employs a two-stage coal crushing process.

[0006] The technical problem to be solved by this invention is achieved by the following technical solution: A layered coal crusher includes a main base on which a support platform, a conveyor belt, and a collection box are mounted. A primary motor and a distribution box are mounted on the support platform. Two main toothed rollers are installed inside the distribution box. The two main toothed rollers are connected to a crushing control assembly adapted to the primary motor. The collection box abuts against the left side of the conveyor belt; the conveyor belt outputs the crushed coal into the collection box, completing the feeding process. The crushing control assembly controls the two main toothed rollers to perform the first layer of crushing on the coal. The two main toothed rollers are symmetrically distributed from left to right.

[0007] Preferably, the main unit is also equipped with an inverted U-shaped crushing seat; a secondary crushing assembly is installed on the upper part of the inverted U-shaped crushing seat. The secondary crushing assembly is used to perform a second crushing during the conveyor belt transport of coal.

[0008] Preferably, each main toothed roller has several rings of clamping teeth; in the front-to-back direction, the clamping teeth corresponding to the two main toothed rollers 3 are distributed alternately; each main toothed roller has short shafts at both ends. The distance between the two main toothed rollers determines the size of the coal during the first crushing.

[0009] Preferably, each of the short shaft sections on the front side is connected to a pulley; a rope connects the two pulleys, allowing them to rotate in opposite directions; the left short shaft section of the two short shaft sections on the front side is connected to a primary motor; the rope also has a tensioning system. That is, through the opposite-direction transmission of the rope, the two main toothed rollers and all the clamping tooth assemblies can rotate in opposite directions. When coal passes between the two main toothed rollers, the two main toothed rollers and all the clamping tooth assemblies will crush the coal through compression.

[0010] The beneficial effects of this invention are: 1. This invention achieves two-stage automatic crushing of coal by controlling the opposite rotation of the two main toothed rollers and the up-and-down sliding of the main pressure plate, resulting in a relatively thorough crushing effect.

[0011] 2. In the first crushing process, the present invention can also automatically adjust the distance between the two main toothed rollers, thereby controlling the size of the crushed coal particles.

[0012] 3. The entire crushing process of the present invention is easy to control, requires less manual intervention, and can save a lot of manual labor. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a first-view perspective perspective view of the present invention; Figure 2 This is a second-view perspective perspective view of the present invention; Figure 3 This is a third-view perspective view of the present invention; Figure 4 This is a top view of the present invention; Figure 5 yes Figure 4 AA section view; Figure 6 This is a structural diagram of two main toothed rollers; Figure 7 yes Figure 1 A magnified view of a portion of point I; Figure 8 yes Figure 2 Enlarged view of section II; Figure 9 yes Figure 4 BB cross-sectional view.

[0015] In the diagram: 1. Main unit base; 2. Feed box; 2a. Side channel; 3. Main toothed roller; 3a. Side channel; 3b. Short shaft; 4. Pulley; 5. Rope; 6. Support platform; 7. Conveyor belt; 8. Collection box; 9. Motor No. 1; 10. Type I movable bearing; 11. Tensioning wheel; 12. Inner shaft; 13. Type II movable bearing; 14. Front sliding sleeve; 15. Spring; 16. Inverted U-shaped crushing seat; 16a. Side channel; 16b. Support; 17. Feed hopper; 18. Discharge pipe; 19. Protective cover; 20. Type II motor; 21. Rotating shaft; 22. Long connecting rod; 23. Main pressure plate; 24. Hydraulic cylinder. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described more clearly and completely below with reference to the accompanying drawings in the embodiments. Of course, the described embodiments are only a part of the present invention and not all of it. Based on this embodiment, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of the present invention.

[0017] like Figure 1 , Figure 2 , Figure 4 as well as Figure 5 As shown, a layered coal crusher includes a main base 1, on which a support platform 6, a conveyor belt 7, and a collection box 8 are respectively installed. A primary motor 9 and a distribution box 2 are respectively installed on the support platform 6. Two main toothed rollers 3 are installed inside the distribution box 2. The two main toothed rollers 3 are connected to a crushing control component adapted to the primary motor 9. The collection box 8 abuts against the left side of the conveyor belt 7; the conveyor belt 7 outputs the crushed coal into the collection box 8, completing the feeding process. The crushing control component can control the two main toothed rollers 3 to perform the first layer of crushing on the coal. The two main toothed rollers 3 are symmetrically distributed from left to right.

[0018] like Figure 1 and Figure 3 As shown, an inverted U-shaped crushing seat 16 is also installed on the main unit base 1; a secondary crushing assembly is installed on the upper part of the inverted U-shaped crushing seat 16. The secondary crushing assembly is used to perform a second crushing during the coal conveying process of the conveyor belt 7.

[0019] like Figure 6 As shown, each main toothed roller 3 is provided with several rings of toothed groups 3a; in the front-to-back direction, the toothed groups 3a corresponding to the two main toothed rollers 3 are distributed alternately front and back; each main toothed roller 3 has a short shaft portion 3b at both its front and back ends. The distance between the two main toothed rollers 3 determines the size of the coal during the first coal crushing.

[0020] like Figure 1 and Figure 7As shown, each of the short shaft sections 3b on the front side is connected to a pulley 4; a rope 5 is provided between the two pulleys 4 to connect them in opposite directions; the left short shaft section 3b of the two short shaft sections 3b on the front side is connected to motor 9; the rope 5 is also equipped with a tensioning system. That is, through the opposite direction of the rope 5, the two main toothed rollers 3 and all the toothed assemblies 3a can rotate in opposite directions. When coal passes between the two main toothed rollers 3, the two main toothed rollers 3 and all the toothed assemblies 3a will crush the coal by compression.

[0021] like Figure 1 , Figure 2 as well as Figure 8 As shown, the two short shaft sections 3b on the left are mounted on the distribution box 2 via bearings; the two short shaft sections 3b on the right are connected to type I movable bearings 10; the distribution box 2 is provided with a lateral through groove 2a for slidingly mounting the type I movable bearings 10; any one of the two type I movable bearings 10 is connected to a hydraulic cylinder 24 fixedly mounted on the outside of the distribution box 2. This structure adjusts the distance between the two main toothed rollers 3 by controlling the sliding of the type I movable bearings 10, thereby controlling the size of the crushed coal during the first layer of coal crushing.

[0022] like Figure 7 As shown, the tensioning system includes a tensioning wheel 11 that engages with the belt 5, an inner shaft 12 connected to the tensioning wheel 11, a type II movable bearing 13 connected to the inner shaft 12, and a front sliding sleeve 14 that slidably mounts the type II movable bearing 13. A spring 15 connected to the type II movable bearing 13 is mounted on the front sliding sleeve 14. Through the elastic force of the spring 15, the belt 5 remains taut when the pulley 4 on the right side slides with the short shaft 3b, ensuring continuous transmission and stable operation of the crushing process.

[0023] like Figure 1 and Figure 7 As shown, the front sliding sleeve 14 is fixedly installed at the front end of the distribution box 2. The above is a conventional design for the fixed structure.

[0024] like Figure 5 As shown, a feed hopper 17 is installed on the upper side of the distribution box 2; a discharge pipe 18 is connected and fitted to the lower end of the distribution box 2. The discharge pipe 18 is located above the right side of the conveyor belt 7. The feed hopper 17 is inverted V-shaped, which allows coal to easily enter the distribution box 2 and pass between the two main toothed rollers 3 for crushing. After the first layer of crushing, the coal can enter the conveyor belt 7 through the discharge pipe 18.

[0025] like Figure 1 and Figure 2As shown, protective covers 19, which are fixedly installed on the main unit base 1, abut against both the front and rear sides of the conveyor belt 7. The protective covers 19 can ensure the stable transportation of coal.

[0026] like Figure 3 As shown, the crushing control assembly consists of a Type II motor 20 mounted on an inverted U-shaped crushing base 16, a rotating shaft 21 connected to the Type II motor 20, a long connecting rod 22 hinged to the rotating shaft 21, and a main pressure plate 23 hinged to the lower end of the long connecting rod 22. The inverted U-shaped crushing base 16 is provided with a side groove 16a for vertically sliding the main pressure plate 23. Each time a portion of coal is conveyed to the main pressure plate 23 for lowering, the rotating shaft 21 can be driven to rotate by the Type II motor 20, controlling the main pressure plate 23 to move up and down, thereby achieving a second crushing of the coal.

[0027] like Figure 4 and Figure 9 As shown, the lower part of the inverted U-shaped crushing seat 16 is provided with a support part 16b that abuts against the upper part of the conveyor belt 7. The support part 16b provides support for the conveyor belt 7, ensuring that the conveyor belt 7 will not be damaged during the coal crushing process.

[0028] As the first coal crushing method of this invention, in use, the operator only needs to pour large coal particles into the distribution box 2 through the feed funnel 17 and let them pass between the two main toothed rollers 3. At the same time, the rotation drive of the No. 1 motor 9 and the transmission of the rope belt 5 cause the two main toothed rollers 3 to rotate in opposite directions, realizing the first crushing of the coal.

[0029] As an improved adjustment method of the present invention, the distance between the two main toothed rollers 3 can be adjusted by driving the hydraulic cylinder 24 during the above-mentioned coal crushing process, so as to control the size of the coal after crushing.

[0030] As the second coal crushing method of this invention, after the first crushing, the coal falls onto the conveyor belt 7 through the feed pipe 18 and is conveyed from right to left by the conveyor belt 7. Whenever a portion of the coal is conveyed to below the main pressure plate 23, the conveying stops, and the type II motor 20 drives the rotating shaft 21 to rotate, controlling the main pressure plate 23 to move up and down, thus achieving a second crushing of the coal. The crushed coal is finally conveyed to the collection box 8.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely prisms of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A layered coal crusher, comprising a main base (1), characterized in that: The main base (1) is equipped with a support platform (6), a conveyor belt (7) and a collection box (8); the support platform (6) is equipped with a No. 1 motor (9) and a material distribution box (2); the material distribution box (2) is equipped with two main toothed rollers (3); the two main toothed rollers (3) are connected to a crushing control component that is compatible with the No. 1 motor (9); The main unit (1) is also equipped with an inverted U-shaped crushing seat (16); a secondary crushing component is installed on the upper part of the inverted U-shaped crushing seat (16).

2. The layered coal crusher according to claim 1, characterized in that: Each main toothed roller (3) is provided with several rings of toothed groups (3a); in the front-back direction, the toothed groups (3a) corresponding to the two main toothed rollers (3) are distributed alternately in front and back; each main toothed roller (3) is provided with a short shaft (3b) at both the front and back ends.

3. A layered coal crusher according to claim 2, characterized in that: The short shafts (3b) on the front side are connected to pulleys (4); a rope (5) is provided between the two pulleys (4) to connect them in opposite directions; the left short shaft (3b) of the two short shafts (3b) on the front side is connected to the first motor (9); the rope (5) is also equipped with a tensioning system.

4. A layered coal crusher according to claim 3, characterized in that: The two short shafts (3b) on the left are mounted on the distribution box (2) by bearings; the two short shafts (3b) on the right are connected to type I movable bearings (10); the distribution box (2) is provided with a lateral through groove (2a) for sliding installation of type I movable bearings (10); any one of the two type I movable bearings (10) is connected to a hydraulic cylinder (24) fixedly installed on the outside of the distribution box (2).

5. A layered coal crusher according to claim 3, characterized in that: The tensioning system includes a tensioning wheel (11) that is driven by the rope (5), an inner shaft (12) that connects to the tensioning wheel (11), a type II movable bearing (13) that connects to the inner shaft (12), and a front sliding sleeve (14) that slides the type II movable bearing (13); a spring (15) connected to the type II movable bearing (13) is installed on the front sliding sleeve (14).

6. A layered coal crusher according to claim 5, characterized in that: The front sliding sleeve (14) is fixedly installed at the front end of the material distribution box (2).

7. A layered coal crusher according to claim 1, characterized in that: The upper side of the material distribution box (2) is equipped with a feeding funnel (17); the lower end of the material distribution box (2) is connected to a discharge pipe (18).

8. A layered coal crusher according to claim 1, characterized in that: The front and rear sides of the conveyor belt (7) are fitted with protective plates (19) that are fixedly installed on the main unit base (1).

9. A layered coal crusher according to claim 1, characterized in that: The crushing control assembly consists of a Type II motor (20) mounted on an inverted U-shaped crushing base (16), a rotating shaft (21) connected to the Type II motor (20), a long connecting rod (22) hinged to the rotating shaft (21), and a main pressure plate (23) hinged to the lower end of the long connecting rod (22). The inverted U-shaped crushing base (16) is provided with a side groove (16a) for vertically sliding the main pressure plate (23).

10. A layered coal crusher according to claim 9, characterized in that: The lower part of the inverted U-shaped crushing seat (16) is provided with a support part (16b) that abuts against the upper part of the conveyor belt (7).

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