Crop straw smashing device

Abstract

The utility model discloses a crop straw smashing device, which relates to the technical field of straw smashing processing equipment and comprises a box body, four supporting rods are fixedly connected to four corners of the bottom of the box body, a feeding port is communicated with the top of the box body, and a discharging port is formed in the bottom of the box body. And two crushing rollers are symmetrically and rotationally connected between the front inner wall and the rear inner wall of the box body through two rotating rods. During use, the arranged hydraulic cylinder pushes the moving plate to move left and right, and the moving plate rotates through the fixed rod to drive the dispersing teeth to move left and right, so that straw particles falling from the crushing roller can be fully dispersed, and the crushed straw particles are more uniformly distributed on the whole horizontal plane; in this way, the smashed straw particles make more sufficient contact with the multiple electromagnetic rods, it is guaranteed that the smashed straw particles are subjected to more sufficient magnetic separation, the suction leakage problem is reduced, and damage caused after the fine smashing cutters collide with iron impurities is effectively prevented from happening.

Description

Technical Field

[0001] The utility model relates to the technical field of straw crushing and processing equipment, and particularly relates to a crop straw crushing device. Background Technique

[0002] Crop straw is the remaining stem part after the crops are maturely harvested. In the past, due to the lack of effective utilization means for these straws, the general treatment method for these straws was to directly burn them on the spot in the planting area.

[0003] With the development of technology, the technologies for reusing crop straws are becoming more and more diverse, such as being used as feed, as raw materials for weaving, and for making paper products. When reusing straws, most of them need to be crushed, so crushing devices will be used. Due to the large-scale application of agricultural machinery, it is inevitable that there will be impurities such as iron slag and iron powder in the farmland. These impurities such as iron slag and iron powder will be mixed in the straws, thus damaging the crushing tools for finely crushing the straws. Therefore, it is necessary to perform iron removal operations on the preliminarily crushed straws to protect the safety of the fine crushing tools.

[0004] The Chinese invention patent with the patent application number CN201710742303.4 records a protective device for a corn straw crusher. By setting a transverse support piece located between the first crushing tool and the second crushing device, and an iron-absorbing piece is provided on the transverse support piece, so as to perform iron absorption and iron removal work on the straw particles roughly crushed by the first crushing tool and the second crushing tool, thereby protecting the second crushing device from being damaged due to collision with the iron impurities mixed in the straw particles. However, in the above device, the iron impurities can only be adsorbed when the straw particles slide down along the transverse support piece, and it is difficult to adsorb the iron impurities blocked by multiple straw particles, and the iron removal rate is relatively low, resulting in a poor iron removal effect. Content of the Utility Model

[0005] The purpose of this application is to provide a crop straw crushing device to solve the problem that it is difficult to adsorb the iron impurities blocked by multiple straw particles, the iron removal rate is relatively low, and the iron removal effect is poor as mentioned in the above background technique.

[0006] To achieve the above object, the present application provides the following technical solution: A crop straw crushing device includes a box body. Four support rods are fixedly connected to the four corners of the bottom of the box body. The top of the box body is communicated with a feed inlet, and the bottom of the box body is provided with a discharge outlet. Between the front and rear inner walls of the box body, two crushing rollers are symmetrically rotatably connected by two rotating rods. Crushing teeth are arranged in a staggered manner on the outer circumferential surfaces of the two crushing rollers. Two motors are fixedly connected to the back of the box body. The rear ends of the two rotating rods penetrate the rear side wall of the box body and are respectively fixedly connected to the output shafts of the two motors. A dispersing component is arranged in the box body for dispersing the crushed crop straw particles. The dispersing component includes two moving plates symmetrically slidably connected to the front and rear inner side walls of the box body through sliders and chutes. Two hydraulic cylinders are symmetrically fixedly connected to the left side surface of the box body. The hydraulic rods of the two hydraulic cylinders penetrate the left side wall of the box body and are respectively fixedly connected to the left side surfaces of the two moving plates. A plurality of fixing rods are equidistantly connected between the side surfaces of the two moving plates close to each other. A plurality of dispersing teeth are fixedly connected to the tops of the plurality of fixing rods. A plurality of electromagnetic rods are equidistantly fixedly connected between the left and right inner side walls of the box body.

[0007] Preferably, the width of the dispersing teeth is not greater than two centimeters, the length of the dispersing teeth is not less than four centimeters, and the distance between adjacent two dispersing teeth is not less than fifteen centimeters. The advantage of such a setting is that the dispersing teeth will not cause serious obstruction to the crushed straw particles, ensuring that the straw particles can smoothly pass through the gaps between adjacent dispersing teeth, so that the dispersing teeth can effectively disperse the crushed straw particles. In this way, the crushed straw particles can be more evenly dispersed over the entire horizontal plane, so that the straw particles can fully contact with a plurality of electromagnetic rods, reducing the problem of missed suction, and effectively improving the reliability and effect of crushing and iron removal of crop straw particles.

[0008] Preferably, the dispersing component further includes a guide plate fixedly connected to the right side surface of the fixing rod. The top surface of the guide plate is an inclined surface, and the angle between the top surface of the guide plate and the horizontal plane is 30 degrees to 60 degrees. The width of the guide plate is less than half of the distance between adjacent two fixing rods. The advantage of such a setting is that more of the crushed straw particles fall on the top of the guide plate, and then due to the self-gravity of the straw particles and the inertia generated by the rightward movement of the guide plate, they pass through the gaps between the dispersing teeth, making the crushed straw particles more fully dispersed, further improving the dispersion uniformity of the straw particles over the entire horizontal plane, further improving the sufficiency of iron removal, and greatly improving the reliability and effect of crushing and iron removal of crop straw particles.

[0009] Preferably, the dispersing teeth are electromagnets. The advantage of such a setting is that it can increase the magnetic attraction intensity for crop straw particles, further reducing the probability of missed suction, and greatly improving the reliability and iron removal effect of the device.

[0010] Preferably, the dispersion component further includes a plurality of rotating shafts rotatably connected at equal intervals between the adjacent sides of the two moving plates. A plurality of the fixed rods are respectively fixedly sleeved on the outer circumferential surfaces of the plurality of rotating shafts. The front and rear ends of the plurality of rotating shafts respectively penetrate through the two moving plates and are fixedly connected with driving wheels. Torsion springs are symmetrically and fixedly connected between the outer sides of the two moving plates away from each other and the inner sides of the two driving wheels close to each other. The dispersion component further includes two driving bars symmetrically and fixedly connected to the front and rear inner side walls of the box body. The driving bars are located above the driving wheels and can be in contact with the outer circumferential surfaces of the driving wheels. The length of the driving bar is less than one-fifth of the axial length of the outer circumferential surface of the driving wheel. The advantage of such a setting is that during the process of the moving plate moving to the right, the driving wheel rotates counterclockwise under the drive of the driving bar, so as to drive the fixed rod, the dispersion teeth and the guide plate to rotate counterclockwise, thereby ensuring that the straw particles between the gaps of the guide plate, the fixed rod and the dispersion teeth can be completely and effectively poured to the lower side, preventing the retention of straw particles, ensuring the smooth progress of the straw crushing and iron removal work, and further improving the reliability of the device.

[0011] In summary, the technical effects and advantages of the present utility model are as follows:

[0012] 1. In the present utility model, the hydraulic cylinder is arranged to push the moving plate to move left and right. The moving plate drives the dispersion teeth to move left and right by rotating around the fixed rod, so as to fully disperse the straw particles falling from the crushing roller, making the crushed straw particles more evenly distributed on the entire horizontal plane. In this way, the crushed straw particles are more fully in contact with the plurality of electromagnetic rods, ensuring that the crushed straw particles are more fully subjected to magnetic separation, reducing the problem of missed suction, and effectively preventing the fine cutting tools from being damaged after colliding with iron impurities.

[0013] 2. In the present utility model, by arranging the guide plate, more of the crushed straw particles fall on the top of the guide plate, and then pass through the gaps between the dispersion teeth due to the self-gravity of the straw particles and the inertia generated by the rightward movement of the guide plate, so that the crushed straw particles are more fully dispersed, further improving the dispersion uniformity of the straw particles on the entire horizontal plane, further improving the adequacy of iron removal, and greatly improving the reliability and effect of crushing and iron removal of crop straw particles. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1It is the first structural schematic diagram of a crop straw crushing device in the embodiment of the present application;

[0016] Figure 2 It is the second structural schematic diagram of a crop straw crushing device in the embodiment of the present application;

[0017] Figure 3 It is the first partial structural schematic diagram of a crop straw crushing device in the embodiment of the present application;

[0018] Figure 4 It is the second partial structural schematic diagram of a crop straw crushing device in the embodiment of the present application;

[0019] Figure 5 It is the third partial structural schematic diagram of a crop straw crushing device in the embodiment of the present application;

[0020] Figure 6 It is the first structural schematic diagram of the dispersion component in the embodiment of the present application;

[0021] Figure 7 It is the first structural schematic diagram of the dispersion component in the embodiment of the present application;

[0022] Figure 8 In the embodiment of the present application Figure 3 The enlarged schematic diagram of part A.

[0023] In the figure: 1. Box body; 2. Support rod; 3. Feed inlet; 4. Discharge outlet; 5. Crushing roller; 6. Motor; 7. Dispersion component; 71. Moving plate; 72. Hydraulic cylinder; 73. Fixed rod; 74. Dispersion teeth; 75. Guide plate; 76. Rotating shaft; 77. Driving wheel; 78. Torsion spring; 79. Driving strip; 8. Electromagnetic rod. Detailed implementation manners

[0024] 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 of 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.

[0025] Embodiment: Refer to Figures 1-8A crop straw crushing device shown in the figure includes a box body 1. Four support rods 2 are fixedly connected to the four corners of the bottom of the box body 1. A feed inlet 3 is communicated with the top of the box body 1. A discharge outlet 4 is opened at the bottom of the box body 1. Two crushing rollers 5 are symmetrically and rotatably connected between the front and rear inner walls of the box body 1 through two rotating rods. Crushing teeth are arranged in a staggered manner on the outer circumferential surfaces of the two crushing rollers 5. Two motors 6 are fixedly connected to the back of the box body 1. The rear ends of the two rotating rods penetrate through the rear side wall of the box body 1 and are respectively fixedly connected to the output shafts of the two motors 6. A dispersing component 7 for dispersing the crushed crop straw particles is arranged in the box body 1. The dispersing component 7 includes two moving plates 71 symmetrically slidably connected to the front and rear inner side walls of the box body 1 through sliders and chutes. Two hydraulic cylinders 72 are symmetrically and fixedly connected to the left side surface of the box body 1. The hydraulic rods of the two hydraulic cylinders 72 penetrate through the left side wall of the box body 1 and are respectively fixedly connected to the left side surfaces of the two moving plates 71. A plurality of fixing rods 73 are equidistantly connected between the side surfaces of the two moving plates 71 close to each other. A plurality of dispersing teeth 74 are fixedly connected to the tops of the plurality of fixing rods 73. A plurality of electromagnetic rods 8 are equidistantly fixedly connected between the left and right inner side walls of the box body 1.

[0026] Reference Figure 6 and 7 , the width of the dispersing teeth 74 is not greater than two centimeters, the length of the dispersing teeth 74 is not less than four centimeters, and the distance between adjacent two dispersing teeth 74 is not less than fifteen centimeters.

[0027] Specifically, it makes the dispersing teeth not cause serious obstruction to the crushed straw particles, ensures that the straw particles can smoothly pass through the gaps between adjacent dispersing teeth, so that the dispersing teeth can effectively disperse the crushed straw particles. In this way, the crushed straw particles can be more evenly dispersed on the entire horizontal plane, so that the straw particles can fully contact with a plurality of electromagnetic rods, reduce the problem of missed suction, and effectively improve the reliability and effect of crushing and iron removal of crop straw particles.

[0028] Reference Figure 6 and 7 , the dispersing component 7 further includes a guide plate 75 fixedly connected to the right side surface of the fixing rod 73. The top surface of the guide plate 75 is an inclined surface, the included angle between the top surface of the guide plate 75 and the horizontal plane is 30 degrees to 60 degrees, and the width of the guide plate 75 is less than half of the distance between adjacent two fixing rods 73.

[0029] Specifically, it makes more of the crushed straw particles fall on the top of the guide plate, and then pass through the gaps between the dispersing teeth due to the self-gravity of the straw particles and the inertia generated by the rightward movement of the guide plate, so that the crushed straw particles are more fully dispersed, further improving the dispersion uniformity of the straw particles on the entire horizontal plane, further improving the sufficiency of iron removal, and greatly improving the reliability and effect of crushing and iron removal of crop straw particles.

[0030] Reference Figures 5-7 , the dispersing teeth 74 are electromagnets.

[0031] Specifically, it can increase the magnetic attraction intensity for crop straw particles, further reduce the probability of missed suction, and greatly improve the reliability of the device and the iron removal effect.

[0032] Reference Figures 5-8 , the dispersing assembly 7 further includes a plurality of rotating shafts 76 rotatably connected at equal intervals between the adjacent sides of the two moving plates 71. A plurality of fixing rods 73 are respectively fixedly sleeved on the outer circumferential surfaces of the plurality of rotating shafts 76. The front and rear ends of the plurality of rotating shafts 76 respectively penetrate through the two moving plates 71 and are fixedly connected with driving wheels 77. Torsion springs 78 are symmetrically and fixedly connected between the opposite sides of the two moving plates 71 and the adjacent sides of the two driving wheels 77. The dispersing assembly 7 further includes two driving strips 79 symmetrically and fixedly connected to the front and rear inner side walls of the box body 1. The driving strips 79 are located above the driving wheels 77 and can be in contact with the outer circumferential surfaces of the driving wheels 77. The length of the driving strips 79 is less than one-fifth of the axial length of the outer circumferential surface of the driving wheels 77.

[0033] Specifically, during the process of the moving plate 71 moving to the right, the driving wheel 77 rotates counterclockwise under the drive of the driving strip 79, thus driving the fixing rod 73, the dispersing teeth 74 and the guide plate 75 to rotate counterclockwise, so as to ensure that the straw particles between the gaps of the guide plate 75, the fixing rod 73 and the dispersing teeth 74 can be completely and effectively poured to the lower side, prevent the retention of straw particles, ensure the smooth progress of the straw crushing and iron removal work, and further improve the reliability of the device.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crop straw crushing device, comprising a box body (1), four support rods (2) are fixedly connected to the four corners of the bottom of the box body (1), a feed inlet (3) is connected to the top of the box body (1), and a discharge outlet (4) is provided at the bottom of the box body (1), characterized in that: Two crushing rollers (5) are symmetrically rotatably connected between the front and rear inner walls of the box body (1) via two rotating rods, and the outer peripheral surfaces of the two crushing rollers (5) are provided with crushing teeth distributed in an alternating manner. Two motors (6) are fixedly connected to the back of the box body (1), and the rear ends of the two rotating rods penetrate the rear side wall of the box body (1) and are respectively fixedly connected to the output shafts of the two motors (6). A dispersion component (7) for dispersing crushed crop straw particles is provided in the box body (1), and the dispersion component (7) comprises a slider and a slide groove symmetrically slidably connected to the box body (1). Two movable plates (71) are provided on the front and rear inner walls of the box body (1); the left side surface of the box body (1) is symmetrically and fixedly connected with two hydraulic cylinders (72); the hydraulic rods of the two hydraulic cylinders (72) penetrate the left side wall of the box body (1) and are respectively fixedly connected with the left sides of the two movable plates (71); a plurality of fixed rods (73) are equidistantly connected between the adjacent sides of the two movable plates (71); the tops of the plurality of fixed rods (73) are all fixedly connected with a plurality of dispersion teeth (74); and a plurality of electromagnetic rods (8) are equidistantly and fixedly connected between the left and right inner walls of the box body (1).

2. A crop straw crushing device according to claim 1, characterized in that: The width of the dispersing teeth (74) is not greater than two centimeters, the length of the dispersing teeth (74) is not less than four centimeters, and the distance between two adjacent dispersing teeth (74) is not less than fifteen centimeters.

3. A crop straw crushing device according to claim 2, characterized in that: The dispersion assembly (7) further comprises a guide plate (75) fixedly connected to the right side surface of the fixing rod (73); the top surface of the guide plate (75) is an inclined surface; the angle between the top surface of the guide plate (75) and the horizontal plane is in a range of thirty to sixty degrees; and the width of the guide plate (75) is less than half of the distance between two adjacent fixing rods (73).

4. A crop straw crushing device according to claim 3, characterized in that: The dispersion teeth (74) are electromagnets.

5. The crop straw crushing device according to claim 4, characterized in that: The dispersion component (7) further comprises a plurality of rotating shafts (76) equidistantly connected to the adjacent side surfaces of the two moving plates (71); the plurality of fixed rods (73) are respectively fixedly sleeved on the outer peripheral surfaces of the plurality of rotating shafts (76); the front and rear ends of the plurality of rotating shafts (76) respectively penetrate the two moving plates (71) and are fixedly connected to driving wheels (77); torsion springs (78) are symmetrically fixedly connected between the distant side surfaces of the two moving plates (71) and the adjacent side surfaces of the two driving wheels (77); the dispersion component (7) further comprises two driving strips (79) symmetrically fixedly connected to the front and rear inner side walls of the box body (1); the driving strips (79) are located on the upper side of the driving wheel (77) and can contact the outer peripheral surface of the driving wheel (77); the length of the driving strips (79) is less than one fifth of the axial length of the outer peripheral surface of the driving wheel (77).

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