Coal crushing device for coal storage yard

Abstract

The utility model relates to the technical field of coal crushing, and discloses a coal crushing device for a coal storage yard, comprising a support frame, a material box is fixedly connected to the middle of the top of the support frame, a groove is provided at the bottom of the material box, a collecting box is arranged in the groove, screening mechanisms are arranged on both sides of the material box, a crushing mechanism is arranged on the top of the screening mechanism, a closed door is arranged on one side of the material box, the screening mechanism comprises a rectangular groove, a screening plate is arranged in the rectangular groove, the screening plate is arranged in the middle of the material box, and connecting plates are fixedly connected to both sides of the top of the screening plate. The coal crushing device for a coal storage yard can make the particle size of the coal uniform by selecting unqualified coal for secondary crushing through the screening mechanism, which is beneficial to the later use of the coal, and can realize the purpose of automatic crushing of the coal through the crushing mechanism by rotating the first crushing roller and the second crushing roller in opposite directions.

Description

Technical Field

[0001] The utility model relates to the technical field of coal crushing, in particular to a coal crushing device for a coal storage yard. Background Art

[0002] Coal is mainly composed of carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus. The total of carbon, hydrogen and oxygen accounts for more than 95% of organic matter. It is a very important energy source and an important raw material for metallurgy and chemical industry. It is classified into lignite, bituminous coal, anthracite and semi-anthracite. The famous writer Zhu Ziqing also wrote a poem with coal as the title, giving it a unique symbolic meaning.

[0003] The patent network announcement number CN 210496769 U discloses a coal crushing device, which relates to the field of coal production technology and solves the problem that the universal wheels of movable coal crushing devices in the prior art are easily damaged. The technical points are: it includes a crushing mechanism, the bottom of the crushing mechanism is fixedly connected to a mobile base, and the mobile base is fixedly connected with a universal wheel and a telescopic support for supporting the mobile base when working; the embodiment of the utility model uses a universal wheel and a hydraulic cylinder in combination, so that the crushing mechanism is fixed by the hydraulic cylinder when working and moved by the universal wheel when moving, thereby making the crushing mechanism more stable when working. Compared with the prior art, the utility model can effectively protect the universal wheel and increase the service life of the universal wheel.

[0004] The applicant believes that the following disadvantages exist: the coal crushing device does not have the function of screening the coal after crushing it, which results in uneven particle sizes of the crushed coal, affecting the subsequent use of the coal, and thus presents a defect. Utility Model Content

[0005] The utility model aims to provide a coal crushing device for a coal storage yard to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal crushing device for a coal storage yard, comprising a support frame, a material box is fixedly connected to the middle of the top of the support frame, a groove is provided at the bottom of the material box, a collecting box is provided in the groove, screening mechanisms are provided on both sides of the material box, a crushing mechanism is provided on the top of the screening mechanism, and a closed door is provided on one side of the material box.

[0007] The screening mechanism includes a rectangular groove, in which a screening plate is arranged, and the screening plate is arranged in the middle of the material box, and connecting plates are fixedly connected to both sides of the top of the screening plate, and a cam is arranged on the top of the connecting plate, and the inner ring of the cam is fixedly connected to a second rotating rod, and the surface of the second rotating rod is rotatably connected to a second support member, and the second support member is fixedly connected to the top of the support frame, and the surface of the second rotating rod is transmission-connected to a pulley group, and the side of the pulley group away from the second rotating rod is transmission-connected to the first rotating rod, and a first motor is fixedly connected to the middle of the surface of the first rotating rod, and the first motor is fixedly connected to the surface of the material box.

[0008] Preferably, the first rotating rod surface is rotatably connected to the first support members on both sides, the second support members are fixedly connected to the top of the support frame, the first rotating rod surface is rotatably connected to the support plates on both sides, the support plates are fixedly connected to the surface of the material box, and the first supporting members are arranged to support the first rotating rod to ensure the stability of the first rotating rod during rotation.

[0009] Preferably, both sides of the screening plate are slidably connected with fixed rods, the top and bottom of the fixed rods are fixedly connected with connecting blocks, and the connecting blocks are fixedly connected to the surface of the material box. Under the screening action of the screening plate, the purpose of screening the coal can be achieved.

[0010] Preferably, springs are sleeved on both sides of the surface of the fixing rod, and the springs are arranged between the connecting block and the screen plate. Under the elastic potential energy of the springs, the screen plate can be continuously reset, thereby achieving the purpose of continuous vibration of the screen plate.

[0011] Preferably, the crushing mechanism includes a first crushing roller, which is rotatably connected to a material box; a second crushing roller is provided on one side of the first crushing roller, which is rotatably connected to the material box; and the first crushing roller and the second crushing roller rotate in opposite directions, thereby achieving the purpose of automatic crushing of the coal.

[0012] Preferably, a first slab gear is fixedly connected to one side of the first crushing roller, a second slab gear is meshed on the surface of the first slab gear, and the second slab gear is fixedly connected to one side of the second crushing roller. With the mutual cooperation of the first slab gear and the second slab gear, the first crushing roller and the second crushing roller can be driven to rotate in opposite directions.

[0013] Preferably, a second motor is fixedly connected to one side of the second crushing roller, a mounting piece is fixedly connected to the bottom of the second motor, and the mounting piece is fixedly connected to the surface of the material box. The second motor can be fixed by the arranged mounting piece.

[0014] Compared with the prior art, the utility model provides a coal crushing device for a coal storage yard, which has the following beneficial effects:

[0015] The coal crushing device used in the coal storage yard can select unqualified coal for secondary crushing through the screening mechanism, so that the particle size of the coal can be uniform, which is beneficial to the later use of the coal.

[0016] The coal crushing device for a coal storage yard can realize the purpose of automatic crushing of coal by means of a crushing mechanism and by means of the first crushing roller and the second crushing roller rotating in opposite directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic oblique view of the overall structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the screening mechanism of the utility model;

[0021] Figure 4 It is a schematic diagram of the crushing mechanism of the utility model.

[0022] In the figure: 1. support frame; 2. screening mechanism; 21. cam; 22. connecting plate; 23. first rotating rod; 24. support plate; 25. first motor; 26. first support member; 27. second rotating rod; 28. connecting block; 29. ​​spring; 201. second support member; 202. fixing rod; 203. screening plate; 3. crushing mechanism; 31. second motor; 32. first flat gear; 33. first crushing roller; 34. second crushing roller; 35. second flat gear; 36. mounting member; 4. collecting box; 5. material box. DETAILED DESCRIPTION

[0023] 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 in 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.

[0024] The utility model provides a technical solution: Embodiment 1

[0025] Combination Figure 1-2 to Figure 3 A coal crushing device for a coal storage yard includes a support frame 1, a material box 5 is fixedly connected to the middle of the top of the support frame 1, a groove is opened at the bottom of the material box 5, a collecting box 4 is arranged in the groove, screening mechanisms 2 are arranged on both sides of the material box 5, a crushing mechanism 3 is arranged on the top of the screening mechanism 2, and a closed door is arranged on one side of the material box 5.

[0026] The screening mechanism 2 includes a rectangular groove, in which a screening plate 203 is arranged, and the screening plate 203 is arranged in the middle of the material box 5. Connecting plates 22 are fixedly connected to both sides of the top of the screening plate 203, and a cam 21 is arranged on the top of the connecting plate 22. The inner circle of the cam 21 is fixedly connected to a second rotating rod 27, and the surface of the second rotating rod 27 is rotatably connected to a second support member 201, and the second support member 201 is fixedly connected to the top of the support frame 1. The surface of the second rotating rod 27 is transmission-connected to a pulley group, and the side of the pulley group away from the second rotating rod 27 is transmission-connected to the first rotating rod 23, and the middle of the surface of the first rotating rod 23 is fixedly connected to a first motor 25, and the first motor 25 is fixedly connected to the surface of the material box 5.

[0027] Furthermore, both sides of the surface of the first rotating rod 23 are rotatably connected to the first support members 26, the second support members 201 are fixedly connected to the top of the support frame 1, and both sides of the surface of the first rotating rod 23 are rotatably connected to the support plates 24, and the support plates 24 are fixedly connected to the surface of the material box 5. The first support members 26 are set up to support the first rotating rod 23 to ensure the stability of the first rotating rod 23 during rotation.

[0028] Furthermore, both sides of the screening plate 203 are slidably connected with fixed rods 202, the top and bottom of the fixed rods 202 are fixedly connected with connecting blocks 28, and the connecting blocks 28 are fixedly connected to the surface of the material box 5. Under the screening action of the screening plate 203, the purpose of screening the coal can be achieved.

[0029] Furthermore, springs 29 are sleeved on both sides of the surface of the fixing rod 202. The springs 29 are arranged between the connecting block 28 and the screening plate 203. Under the elastic potential energy of the springs 29, the screening plate 203 can be continuously reset, thereby achieving the purpose of continuous vibration of the screening plate 203. Embodiment 2

[0030] See also Figure 4On the basis of the first embodiment, the crushing mechanism 3 further comprises a first crushing roller 33, which is rotatably connected to the material box 5, and a second crushing roller 34 is provided on one side of the first crushing roller 33, which is rotatably connected to the material box 5. By rotating the first crushing roller 33 and the second crushing roller 34 in opposite directions, the purpose of automatic crushing of coal can be achieved.

[0031] Furthermore, a first flat gear 32 is fixedly connected to one side of the first crushing roller 33, a second flat gear 35 is meshed on the surface of the first flat gear 32, and the second flat gear 35 is fixedly connected to one side of the second crushing roller 34. With the mutual cooperation of the first flat gear 32 and the second flat gear 35, the first crushing roller 33 and the second crushing roller 34 can be driven to rotate in opposite directions.

[0032] Furthermore, a second motor 31 is fixedly connected to one side of the second crushing roller 34 , a mounting member 36 is fixedly connected to the bottom of the second motor 31 , and the mounting member 36 is fixedly connected to the surface of the material box 5 . The second motor 31 can be fixed by the mounting member 36 .

[0033] In actual operation, when the device is used, firstly, the coal is placed between the first crushing roller 33 and the second crushing roller 34 on both sides, and then the first motor 25 is started, the first motor 25 drives the second flat gear 35 and the second crushing roller 34 to rotate synchronously, and drives the first flat gear 32 and the first crushing roller 33 to rotate synchronously. At this time, the first crushing roller 33 and the second crushing roller 34 rotate in opposite directions, so that the coal can be automatically crushed. The crushed coal falls into the inside of the screening plate 203, and then the first motor 25 is started, the first motor 25 drives the first rotating rod 23 to rotate synchronously, and under the linkage effect formed by the pulley group, the second rotating rod 2 7 is rotated and drives the cam 21 to rotate. Under the rotation of the cam 21, the screening plate 203 can be driven to slide on the surface of the fixed rod 202. Under the elastic potential energy of the spring 29, the screening plate 203 can be continuously reset, thereby achieving the purpose of continuous vibration of the screening plate 203. Under the continuous vibration of the screening plate 203, the coal can be quickly screened, and the qualified coal falls into the inside of the collecting box 4. The collecting box 4 can be taken out to take out the coal inside. When it is necessary to perform secondary crushing on the unqualified coal, the closed door can be opened to take out the coal from the inside of the screening plate 203 and perform secondary crushing, thereby ensuring the effect of coal crushing.

[0034] 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. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A coal crushing device for a coal storage yard, comprising a support frame (1), characterized in that: A material box (5) is fixedly connected to the middle of the top of the support frame (1), a groove is provided at the bottom of the material box (5), a collecting box (4) is arranged in the groove, screening mechanisms (2) are arranged on both sides of the material box (5), a crushing mechanism (3) is arranged on the top of the screening mechanism (2), and a closed door is arranged on one side of the material box (5); The screening mechanism (2) comprises a rectangular groove, a screening plate (203) is arranged in the rectangular groove, the screening plate (203) is arranged in the middle of the material box (5), the top of the screening plate (203) is fixedly connected to connecting plates (22) on both sides, the top of the connecting plate (22) is provided with a cam (21), the inner ring of the cam (21) is fixedly connected to a second rotating rod (27), the surface of the second rotating rod (27) is rotatably connected to a second support member (201), the second support member (201) is fixedly connected to the top of the support frame (1), the surface of the second rotating rod (27) is transmission-connected to a pulley group, the side of the pulley group away from the second rotating rod (27) is transmission-connected to the first rotating rod (23), the middle of the surface of the first rotating rod (23) is fixedly connected to a first motor (25), and the first motor (25) is fixedly connected to the surface of the material box (5).

2. A coal crushing device for a coal storage yard according to claim 1, characterized in that: The first rotating rod (23) has first support members (26) rotatably connected to both sides of its surface, the second support member (201) is fixedly connected to the top of the support frame (1), the first rotating rod (23) has support plates (24) rotatably connected to both sides of its surface, and the support plates (24) are fixedly connected to the surface of the material box (5).

3. The coal crushing device for coal storage yard according to claim 1, characterized in that: Both sides of the screening plate (203) are slidably connected to fixed rods (202), the top and bottom of the fixed rods (202) are fixedly connected to connecting blocks (28), and the connecting blocks (28) are fixedly connected to the surface of the material box (5).

4. The coal crushing device for coal storage yard according to claim 3, characterized in that: Springs (29) are sleeved on both sides of the surface of the fixing rod (202), and the springs (29) are arranged between the connecting block (28) and the screening plate (203).

5. The coal crushing device for coal storage yard according to claim 1, characterized in that: The pulverizing mechanism (3) comprises a first crushing roller (33), the first crushing roller (33) being rotatably connected to a material box (5), and a second crushing roller (34) being rotatably connected to a material box (5). A second crushing roller (34) is provided on one side of the first crushing roller (33), and the second crushing roller (34) is rotatably connected to a material box (5).

6. The coal crushing device for coal storage yard according to claim 5, characterized in that: A first spur gear (32) is fixedly connected to one side of the first crushing roller (33), a second spur gear (35) is meshed on the surface of the first spur gear (32), and the second spur gear (35) is fixedly connected to one side of the second crushing roller (34).

7. The coal crushing device for coal storage yard according to claim 6, characterized in that: A second motor (31) is fixedly connected to one side of the second crushing roller (34), a mounting member (36) is fixedly connected to the bottom of the second motor (31), and the mounting member (36) is fixedly connected to the surface of the material box (5).

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