Straw pulverizer with high safety

Abstract

The utility model relates to the technical field of crushers, and discloses a high-safety straw crusher which comprises a crushing box, supporting legs are fixedly installed at the bottom of the crushing box, a feeding port is communicated with the top of the crushing box, a dust removal mechanism is arranged at the top of the crushing box, and the dust removal mechanism comprises a groove body, a frame body, a negative pressure fan, a connecting pipe and a cover body. The tank body is fixedly installed at the top of the crushing box, an opening of the tank body faces downwards, and the frame body is arranged on the front face of the tank body in a communicating mode; straw is poured into the smashing box from the feeding port to be smashed, the motor is started to drive the negative pressure fan to rotate in the smashing process, negative pressure is generated in the groove body, suction force is generated at the position of the cover body, the cover body sucks smashed powder and dust generated in the smashing process into the collecting box, and the smashed powder and the dust are collected through the collecting box. And environmental pollution and adverse effects on the health of workers are avoided, and the safety and the environmental protection property of the pulverizer are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to a straw crusher with high safety. Background Technique

[0002] Straw returning to the field is a widely emphasized yield-increasing measure for soil fertility improvement in the world today. While eliminating the air pollution caused by straw burning, it also has the effect of increasing fertilizer and yield. Straw returning to the field can increase soil organic matter, improve soil structure, make the soil loose, increase porosity, reduce bulk density, and promote the activity of microorganisms and the development of crop roots. The effect of straw returning to the field on increasing fertilizer and yield is significant, generally increasing production by 5% to 10%. However, if the method is improper, it will also lead to an increase in soil pathogens, an aggravation of crop diseases, and poor phenomena such as seedling shortage. Therefore, reasonable straw returning to the field measures must be taken to achieve good returning effects.

[0003] There are some defects in the existing straw crushers during use. Generally, they do not have a dust removal device, which easily causes a large amount of straw fragments and dust during the crushing process, seriously polluting the air. Workers staying in such an environment for a long time are prone to respiratory diseases, seriously endangering their physical health. Therefore, a straw crusher with high safety is proposed to solve the above problems. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a straw crusher with high safety in view of the above deficiencies in the existing technology.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is: a straw crusher with high safety, including a crushing box. The bottom of the crushing box is fixedly installed with support legs, and the top is communicated with a feed inlet. A dust removal mechanism is arranged on the top of the crushing box. The dust removal mechanism includes a trough body, a frame body, a negative pressure fan, a connecting pipe and a cover body. The trough body is fixedly installed on the top of the crushing box and has an opening facing downwards. The frame body is communicated with the front of the trough body, and the negative pressure fan is fixedly installed inside the frame body. The connecting pipe is communicated with the top of the trough body, and the cover body is communicated with one end of the connecting pipe and is located above the feed inlet.

[0006] Preferably, a filter screen I is fixedly installed inside the trough body, and a collection box is arranged on the back of the filter screen I. The collection box penetrates through the left side of the trough body and is slidably connected with the trough body. By setting the filter screen I, it can be avoided that the inhaled crushed materials and fragments affect the negative pressure fan, achieving the purpose of separation.

[0007] Preferably, a handle is fixedly installed on the left side of the collection box, and a filter screen II is fixedly installed on the front of the frame body. By setting the handle, it is convenient to pull out the collection box. By setting the filter screen II, it is for dust prevention to avoid dust and other sundries from entering the inside of the frame body.

[0008] Preferably, a crushing mechanism is provided at the top of the crushing box. The crushing mechanism includes a rotating rod and blades. The rear end of the rotating rod is rotatably connected to the inner wall of the feed inlet through a bearing, and the front end penetrates through the front surface of the inner wall of the feed inlet and extends to the outside of the feed inlet. The blades are fixedly installed on the outer wall of the rotating rod and are located inside the feed inlet. The rotating rod is provided to drive the plurality of blades to rotate and crush the straw.

[0009] Preferably, the rotating rod is rotatably connected to the feed inlet. A rotating shaft is fixedly installed on the front surface of the negative pressure fan, and a first transmission wheel is fixedly installed at the front end of the rotating shaft. A second transmission wheel is fixedly installed at the front end of the rotating rod. A conveyor belt is sleeved on the first transmission wheel and the second transmission wheel. A rectangular hole is opened on the right side of the frame body. The rectangular hole is provided to allow the conveyor belt to pass through without affecting its transmission effect.

[0010] Preferably, the conveyor belt passes through the rectangular hole and is movably connected to the rectangular hole. The conveyor belt is movably connected to the first transmission wheel and the second transmission wheel.

[0011] The present utility model adopts the above technical solutions and can bring the following beneficial effects:

[0012] 1. For the straw crusher with high safety, the straw is poured into the inside of the crushing box from the feed inlet for crushing. During the crushing process, the motor is started to drive the negative pressure fan to rotate, so that a negative pressure is generated inside the tank body, and thus a suction force is generated at the hood. The hood sucks the debris and dust generated during the crushing process into the inside of the collection box, avoiding environmental pollution and adverse effects on the physical health of the staff, and improving the safety and environmental protection of the crusher. [[ID=I4]] ]

[0013] 2. For the straw crusher with high safety, when the negative pressure fan rotates during the dust removal process, it will drive the first transmission wheel to rotate through the rotating shaft. The first transmission wheel drives the blades on the rotating rod to rotate through the transmission of the conveyor belt and the second transmission wheel. The blades perform preliminary crushing on the poured straw, making the crushed straw easier to crush and improving the crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model Figure 1 ;

[0015] Figure 2 is a schematic structural diagram of the present utility model Figure 2 ;

[0016] Figure 3 is a schematic diagram of the internal structure of the frame body of the present utility model.

[0017] In the figure: 1. Crushing box; 2. Support leg; 3. Feed inlet; 4. Dust removal mechanism; 41. Tank body; 42. Frame body; 43. Negative pressure fan; 44. First filter screen; 45. Collection box; 46. Handle; 47. Connecting pipe; 48. Cover body; 5. Second filter screen; 6. Crushing mechanism; 61. Rotating shaft; 62. First transmission wheel; 63. Rectangular hole; 64. Conveyor belt; 65. Second transmission wheel; 66. Rotating rod; 67. Blade. Detailed implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0020] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "several" means two or more, unless otherwise clearly and specifically defined.

[0022] Please refer to Figures 1-3, an embodiment of the present utility model is: a straw crusher with high safety, including a crushing box 1, a support leg 2 is fixedly installed at the bottom of the crushing box 1, and a feed inlet 3 is communicated at the top. A discharge port is arranged on the right side of the crushing box 1. In actual operation, a cloth bag is sleeved on the discharge port to collect the crushed straw, which can avoid dust overflow. A dust removal mechanism 4 is arranged on the top of the crushing box 1. The dust removal mechanism 4 includes a trough body 41, a frame body 42, a negative pressure fan 43, a connecting pipe 47 and a cover body 48. The trough body 41 is fixedly installed on the top of the crushing box 1 and the opening faces downward. The frame body 42 is communicated on the front of the trough body 41, and the negative pressure fan 43 is fixedly installed inside the frame body 42. The negative pressure fan 43 is driven by a motor, and the motor is prior art and not shown. The connecting pipe 47 is communicated on the top of the trough body 41, and the cover body 48 is communicated at one end of the connecting pipe 47 and is located above the feed inlet 3. A filter screen one 44 is fixedly installed inside the trough body 41, and a collection box 45 is arranged on the back of the filter screen one 44. The collection box 45 penetrates through the left side of the trough body 41 and is slidably connected with the trough body 41. By setting the filter screen one 44, it can avoid the crushed materials and powder inhaled from affecting the negative pressure fan 43 and achieve the purpose of separation. A handle 46 is fixedly installed on the left side of the collection box 45, and a filter screen two 5 is fixedly installed on the front of the frame body 42. By setting the handle 46, it is convenient to pull out the collection box 45. By setting the filter screen two 5, it is for dust prevention to avoid dust and other sundries from entering the inside of the frame body 42.

[0023] Working principle: The straw is poured into the inside of the crushing box 1 from the feed inlet 3 for crushing treatment. During the crushing process, the motor is started to drive the negative pressure fan 43 to rotate, so that a negative pressure is generated inside the trough body 41, and thus a suction force is generated at the cover body 48. The cover body 48 sucks the powder and dust generated during the crushing process into the inside of the collection box 45, avoiding environmental pollution and adverse effects on the physical health of the staff, and improving the safety and environmental protection of the crusher.

[0024] Please refer to Figures 2-3, on the basis of the above embodiments, in another embodiment of the present utility model, a crushing mechanism 6 is provided at the top of the crushing box 1. The crushing mechanism 6 includes a rotating rod 66 and blades 67. The rear end of the rotating rod 66 is rotatably connected to the inner wall of the feeding port 3 through a bearing, and the front end penetrates through the front surface of the inner wall of the feeding port 3 and extends to the outside of the feeding port 3. The blades 67 are fixedly installed on the outer wall of the rotating rod 66 and are located inside the feeding port 3. The rotating rod 66 is provided to drive the plurality of blades 67 to rotate and crush the straw. The rotating rod 66 is rotatably connected to the feeding port 3. A rotating shaft 61 is fixedly installed on the front surface of the negative pressure fan 43, and a first transmission wheel 62 is fixedly installed at the front end of the rotating shaft 61. A second transmission wheel 65 is fixedly installed at the front end of the rotating rod 66. A conveyor belt 64 is sleeved on the first transmission wheel 62 and the second transmission wheel 65. A rectangular hole 63 is opened on the right side of the frame body 42. The rectangular hole 63 is provided to allow the conveyor belt 64 to pass through without affecting its transmission effect. The conveyor belt 64 passes through the rectangular hole 63 and is movably connected to the rectangular hole 63. The conveyor belt 64 is movably connected to the first transmission wheel 62 and the second transmission wheel 65.

[0025] Working principle: During the dust removal process, when the negative pressure fan 43 rotates, it will drive the first transmission wheel 62 to rotate through the rotating shaft 61. The first transmission wheel 62 drives the blades 67 on the rotating rod 66 to rotate through the transmission of the conveyor belt 64 and the second transmission wheel 65. The blades 67 perform preliminary crushing on the poured straw, making the crushed straw easier to be pulverized and improving the pulverization efficiency.

[0026] It should be noted that the crushed straw falls into the crushing box 1 for pulverization. During pulverization, it is pulverized by the pulverization mechanism inside the crushing box 1. The motor and the driving equipment of the pulverization mechanism are both controlled by the controller. The above are all prior arts and not the main innovation points, so no detailed description will be made here.

[0027] The present utility model provides a straw pulverizer with high safety. There are many methods and ways to specifically implement this technical solution. The above description is only the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. Each component not clearly defined in this embodiment can be realized by using the prior art.

Claims

1. A straw shredder with high safety, comprising a shredding box (1), characterized in that: The bottom of the crushing box (1) is fixedly installed with support legs (2), and a feed inlet (3) is communicated with the top. A dust removal mechanism (4) is arranged on the top of the crushing box (1). The dust removal mechanism (4) includes a tank body (41), a frame body (42), a negative pressure fan (43), a connecting pipe (47) and a cover body (48). The tank body (41) is fixedly installed on the top of the crushing box (1) and has an opening facing downwards. The frame body (42) is communicated with the front of the tank body (41), and the negative pressure fan (43) is fixedly installed inside the frame body (42). The connecting pipe (47) is communicated with the top of the tank body (41), and the cover body (48) is communicated with one end of the connecting pipe (47) and is located above the feed inlet (3).

2. The straw crusher with high safety according to claim 1, characterized in that: A first filter screen (44) is fixedly installed inside the tank body (41), and a collection box (45) is arranged on the back of the first filter screen (44). The collection box (45) penetrates through the left side of the tank body (41) and is slidably connected with the tank body (41).

3. The straw crusher with high safety according to claim 2, characterized in that: A handle (46) is fixedly installed on the left side of the collection box (45), and a second filter screen (5) is fixedly installed on the front of the frame body (42).

4. A straw crusher with high safety according to claim 1, characterized in that: A crushing mechanism (6) is arranged on the top of the crushing box (1). The crushing mechanism (6) includes a rotating rod (66) and blades (67). The rear end of the rotating rod (66) is rotatably connected with the inner wall of the back of the feed inlet (3) through a bearing, and the front end penetrates through the inner wall of the front of the feed inlet (3) and extends to the outside of the feed inlet (3). The blades (67) are fixedly installed on the outer wall of the rotating rod (66) and are located inside the feed inlet (3).

5. The straw crusher with high safety according to claim 4, characterized in that: The rotating rod (66) is rotatably connected with the feed inlet (3). A rotating shaft (61) is fixedly installed on the front of the negative pressure fan (43), and a first transmission wheel (62) is fixedly installed at the front end of the rotating shaft (61). A second transmission wheel (65) is fixedly installed at the front end of the rotating rod (66). A conveyor belt (64) is sleeved on the first transmission wheel (62) and the second transmission wheel (65). A rectangular hole (63) is opened on the right side of the frame body (42).

6. The straw crusher with high safety according to claim 5, characterized in that: The conveyor belt (64) passes through the rectangular hole (63) and is movably connected with the rectangular hole (63). The conveyor belt (64) is movably connected with the first transmission wheel (62) and the second transmission wheel (65).

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