Straw pulverizer for rice planting

Abstract

The utility model discloses a straw pulverizer for rice planting, which comprises a case, feeding barrels are arranged on the end faces of the two sides of the case, pulverizing rollers are symmetrically and rotatably arranged in the case, fluted discs are arranged at the ends of the pulverizing rollers, spiral blades are rotatably arranged in the feeding barrels, and the fluted discs are arranged in the feeding barrels. Bevel gears are rotationally mounted at the top and the middle of the top end of the side end face of the feeding barrel, and driving wheels are mounted in the middles of the side end faces of the fluted disc and the bevel gears. Straw can be crushed in a circulating mode, the straw grinding difficulty is effectively reduced, the stability and convenience of straw crushing work are effectively improved, and the straw grinding efficiency is improved. The straw particle uniformity is greatly improved, the crushing quality and the crushing effect are effectively improved, the separation efficiency of up-to-standard straw particles and non-up-to-standard straw particles is improved, the screening plate is prevented from being blocked, the blocking failure rate of the device is reduced, and the endurance stability and the crushing efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of straw mills, in particular to a straw mill used for rice planting. Background Art

[0002] The use of crop straw has a long history, but due to the low level of agricultural production, low yield and small amount of straw in the past, most of the straw was burned as fuel, except for a small amount used for gaskets and livestock feeding, and some used for composting. With the advancement of science and technology and the improvement of agricultural mechanization, the utilization of straw has changed from composting to direct return of straw to the fields. During the rice planting process, the straw should be crushed and ground when it is returned to the fields.

[0003] However, the straw grinding machines currently on the market cannot guarantee the consistency of particle specifications after straw crushing and grinding. The final straw particles are very likely to carry a large amount of non-standard particles that have not been effectively crushed, making them difficult to use normally, necessitating manual rework. In addition, the device is prone to frequent blockages, making the straw crushing work extremely unstable and inconvenient, and the crushing effect and efficiency are extremely poor. Utility Model Content

[0004] The utility model provides a straw grinding machine for rice planting, which can effectively solve the problem raised in the above background technology that the straw grinding machines currently on the market are difficult to ensure the consistency of the particle specifications after the straw is crushed during the crushing and grinding of the straw, and the straw particles finally obtained are very likely to carry a large amount of non-standard particles that have not been effectively crushed, making them difficult to use normally, so that manual rework is required, and the device is very likely to frequently get blocked, resulting in the problem that the straw crushing work is extremely unstable and inconvenient, and the crushing effect and efficiency are extremely poor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a straw mill for rice planting, comprising a chassis, both side end surfaces of the chassis are equipped with feeding barrels, crushing rollers are symmetrically and rotatably installed inside the chassis, a toothed disc is installed at the end of the crushing roller, a spiral blade is rotatably installed inside the feeding barrel, a bevel gear is rotatably installed at the top and the middle of the top end of the side end surface of the feeding barrel, a driving wheel is installed at the middle of the toothed disc and the side end surface of the bevel gear, a driving belt is sleeved on the outside of the driving wheel, and a motor is installed on one side of the side end surface of the chassis;

[0006] On the other side end face of the chassis, linkage wheels are symmetrically and rotatably installed. A linkage belt is sleeved outside the linkage wheels. A clamping column is rotatably installed in the middle of the side end face of the linkage belt. A scraping and leaking plate is slidably installed at the bottom position of the crushing roller inside the chassis. A linkage frame is installed at the corner of the side end face of the scraping and leaking plate. A conversion seat is installed at the end of the linkage frame corresponding to the position of the clamping column. A screening plate is embedded and installed at the bottom position of the scraping and leaking plate inside the chassis. An aggregate drawer is embedded and slidably installed at the bottom of the side end face of the chassis.

[0007] Preferably, the spiral directions of the two spiral blades are opposite. The spiral blades are connected to the driving wheel through bevel gears. The output shaft of the motor is connected to the toothed disc through the driving wheel. One of the linkage wheels is fixedly connected to the crushing roller. The input end of the motor is electrically connected to the output end of an external power supply.

[0008] Preferably, the size of the screening holes of the screening plate is the same as the size of the leaking holes of the scraping and leaking plate. The bottom end of the scraping and leaking plate fits with the top end of the screening plate.

[0009] Preferably, the length of the linkage frame is greater than twice the width of the screening plate. The bottom end of the feeding port of the feeding barrel is flush with the bottom end of the scraping and leaking plate. The bottom end of the discharging port of the feeding barrel is higher than the highest point of the crushing roller.

[0010] Preferably, a wind box is installed at the bottom of the other side end face of the chassis. Exhaust pipes are symmetrically installed at the top edge of the wind box. Air extraction pipes are symmetrically installed at the bottom edge of the wind box. Check valves are installed at the ends of the air extraction pipes and the exhaust pipes. A piston plate is slidably installed inside the wind box. A driving frame is installed in the middle of the side end face of the piston plate. A diversion seat is embedded and installed at the bottom of the side end face of the chassis. A dust collection box is installed at the bottom end of the feeding barrel.

[0011] Preferably, the piston plate is connected to the diversion seat through the air extraction pipe. The piston plate is connected to the dust collection box through the exhaust pipe. A dust collection drawer is embedded and slidably installed on the side end face of the dust collection box. A filter screen is arranged in the middle of the side end face of the diversion seat. The aperture of the filter screen is smaller than the aperture of the screening plate. The piston plate is connected to the linkage frame through the driving frame.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The structure of the present utility model is scientific and reasonable, and it is safe and convenient to use;

[0013] 1. A feeding bucket is provided. Through the cooperation of a toothed disc, bevel gears, a driving wheel and a driving belt, the driving force of the motor can be transmitted and redirected, effectively improving the effective utilization rate of the driving force, greatly enhancing the synchronization of the straw powder grinding work. With the directional conveying function of the feeding bucket and the spiral blade, the crushing roller can be used to perform cyclic crushing on the straw, achieving multiple crushing of the straw that does not meet the crushing standard, effectively reducing the difficulty of straw powder grinding, effectively improving the stability and convenience of the straw crushing work. With the screening function of the screening plate, the particle uniformity of the straw particles is greatly improved, effectively enhancing the crushing quality and effect, effectively avoiding secondary rework, and indirectly improving the straw powder grinding efficiency.

[0014] 2. Through the cooperation of a linkage wheel, a linkage belt, a linkage frame, a conversion seat and a clamping post, the driving force can be further conducted and transformed. While further improving the energy utilization rate, the straw powder can be pushed and scraped by the scraping and leaking plate, effectively improving the separation efficiency of the qualified straw particles and the unqualified straw particles, enhancing the stability and smoothness of the straw cyclic crushing work, effectively avoiding the blockage of the screening plate, thereby effectively reducing the device blockage failure rate, greatly improving the endurance stability and crushing efficiency of the grinder. Through the cooperation of the machine case and the aggregate drawer, the straw powder can be centrally collected, making the straw crushing work more convenient and reliable.

[0015] 3. A wind box is provided. Through the cooperation of particles, a piston plate and a driving frame, the driving force of the motor can be converted into a directional negative pressure to adsorb the generated straw dust during the straw powder grinding work. On the one hand, it effectively prevents the escape of straw dust, effectively avoiding the irritation of the skin of the grinder user by the dust or the inhalation of the dust into the lungs, which has an adverse impact on the personal health of the user, greatly improving the use experience of the grinder. On the other hand, it effectively prevents the escape of straw dust into the air, causing adverse effects on the atmosphere, thereby effectively improving the environmental protection of the grinder;

[0016] On the other hand, it greatly improves the timeliness of the dust adsorption work. In cooperation with the suction pipe, the exhaust pipe and the one-way valve, the straw dust can be adsorbed and diverted in real time, greatly improving the adsorption efficiency and stability of the straw dust. With the secondary effect of the diversion seat on the adsorption negative pressure, the adsorption comprehensiveness of the dust is greatly improved, significantly reducing the adsorption dead angle, increasing the effective adsorption rate of the straw dust, making the straw dust adsorption work more comprehensive and reliable. In cooperation with the dust collection box, it improves the convenience of collecting the straw dust, while reducing the escape of the straw dust, indirectly increasing the effective recycling rate of the straw dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention.

[0018] In the attached drawings:

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a schematic installation structure diagram of the crushing roller of the present utility model;

[0021] Figure 3 is a schematic installation structure diagram of the scraping and leaking plate of the present utility model;

[0022] Figure 4 is a schematic installation structure diagram of the diversion seat of the present utility model;

[0023] The reference numerals in the figure: 1, chassis; 2, feeding barrel; 3, crushing roller; 4, toothed disc; 5, spiral blade; 6, bevel gear; 7, driving wheel; 8, driving belt; 9, motor; 10, linkage wheel; 11, linkage belt; 12, scraping and leaking plate; 13, linkage frame; 14, conversion seat; 15, clamping column; 16, aggregate drawer; 17, screening plate; 18, air box; 19, suction pipe; 20, exhaust pipe; 21, one-way valve; 22, piston plate; 23, driving frame; 24, diversion seat; 25, dust collection box. Specific Embodiments

[0024] The following is a description of the preferred embodiments of the present utility model with reference to the attached drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present utility model, and are not used to limit the present utility model.

[0025] Embodiment: As Figures 1-4 shown, the present utility model provides a technical solution, a straw pulverizer for rice planting, including a chassis 1, feeding barrels 2 are installed on both end faces of the chassis 1, crushing rollers 3 are symmetrically and rotatably installed inside the chassis 1, toothed discs 4 are installed at the ends of the crushing rollers 3, spiral blades 5 are rotatably installed inside the feeding barrels 2, bevel gears 6 are rotatably installed at the top of the side end face and the middle of the top end of the feeding barrel 2, driving wheels 7 are installed in the middle of the side end faces of the toothed discs 4 and the bevel gears 6, driving belts 8 are sleeved outside the driving wheels 7, a motor 9 is installed on one side of the side end face of the chassis 1, the spiral directions of the two spiral blades 5 are opposite, the spiral blades 5 are connected to the driving wheels 7 through the bevel gears 6, the output shaft of the motor 9 is connected to the toothed discs 4 through the driving wheels 7, a linkage wheel 10 is fixedly connected to the crushing roller 3, and the input end of the motor 9 is electrically connected to the output end of an external power supply, so as to conduct and turn the driving force to achieve cyclic crushing;

[0026] On the other side end face of the chassis 1, a linkage wheel 10 is symmetrically and rotatably installed. A linkage belt 11 is sleeved outside the linkage wheel 10. In the middle of the side end face of the linkage belt 11, a clamping column 15 is rotatably installed. Inside the chassis 1, at the bottom position of the crushing roller 3, a scraping and leaking plate 12 is slidably installed. At the corner of the side end face of the scraping and leaking plate 12, a linkage frame 13 is installed. At the position corresponding to the clamping column 15 at the end of the linkage frame 13, a conversion seat 14 is installed. Inside the chassis 1, at the bottom position of the scraping and leaking plate 12, a screening plate 17 is embedded and installed. The length of the linkage frame 13 is greater than twice the width of the screening plate 17. The bottom end of the feeding port of the feeding barrel 2 is flush with the bottom end of the scraping and leaking plate 12. The bottom end of the discharging port of the feeding barrel 2 is higher than the highest point of the crushing roller 3 to provide a stable driving force. The size of the screening holes of the screening plate 17 is the same as the size of the leaking holes of the scraping and leaking plate 12. The bottom end of the scraping and leaking plate 12 fits with the top end of the screening plate 17 to promote the separation of straw particles and avoid blockage. At the bottom of the side end face of the chassis 1, an aggregate drawer 16 is embedded and slidably installed.

[0027] At the bottom of the other side end face of the chassis 1, an air box 18 is installed. At the top edge of the air box 18, air extraction pipes 19 are symmetrically installed. At the bottom edge of the air box 18, exhaust pipes 20 are symmetrically installed. One-way valves 21 are installed at the ends of the air extraction pipes 19 and the exhaust pipes 20. Inside the air box 18, a piston plate 22 is slidably installed. In the middle of the side end face of the piston plate 22, a driving frame 23 is installed. At the bottom of the side end face of the chassis 1, a diversion seat 24 is embedded and installed. At the bottom end of the feeding barrel 2, a dust collection box 25 is installed. The piston plate 22 is connected to the diversion seat 24 through the air extraction pipe 19. The piston plate 22 is connected to the dust collection box 25 through the exhaust pipe 20. On the side end face of the dust collection box 25, a dust collection drawer is embedded and slidably installed. In the middle of the side end face of the diversion seat 24, a filter screen is provided. The aperture of the filter screen is smaller than the aperture of the screening plate 17. The piston plate 22 is connected to the linkage frame 13 through the driving frame 23 to centrally collect the straw dust.

[0028] The working principle and usage process of the present utility model: When the straw grinder for rice planting is actually used, first, the chassis 1 is stably placed on the ground of the working area to be worked. Check the tightness of the driving belt 8 and the linkage belt 11, and check the space allowance inside the aggregate drawer 16 and the dust collection box 25. After confirmation, the motor 9 can be started. Manually or through an external conveying mechanism, the straw is fed into the chassis 1 to perform the crushing and grinding work of the straw;

[0029] During the crushing and grinding work, the output shaft of the motor 9 drives the gear disk 4 to rotate through the driving wheel 7. Then, under the meshing action of the external teeth of the gear disk 4, the gear disk 4 drives the two crushing rollers 3 to rotate towards each other, causing the straw fed into the chassis 1 to be gradually crushed under the crushing action of the two crushing rollers 3. The crushed straw will then fall onto the surface of the screening plate 17. The straw with particle size meeting the crushing standard will then pass through the screening plate 17 under the action of gravity and fall into the aggregate drawer 16 for centralized collection. The straw with particle size not meeting the crushing standard will temporarily stay on the surface of the screening plate 17;

[0030] During the above process, during the rotation of the crushing roller 3, the linkage wheel 10 connected to the crushing roller 3 will also rotate synchronously driven by the crushing roller 3. Further, the linkage wheel 10 will force the linkage belt 11 to rotate, causing the clamping column 15 to displace accordingly. Under the limiting and conversion action of the clamping column 15 and the conversion seat 14, the conversion seat 14 will drag the scraping and leaking plate 12 to reciprocate in the chassis 1 through the linkage frame 13. Further, with the displacement movement of the scraping and leaking plate 12, the non-standard straw particles staying on the surface of the screening plate 17 will be scraped and pressed into the feeding bucket 2. At this time, under the driving action of the linkage wheel 10 and the linkage belt 11, the linkage wheel 10 will drive the spiral blade 5 to rotate through the bevel gear 6. Further, with the rotation of the spiral blade 5, it will send the non-standard straw particles entering the feeding bucket 2 above the crushing roller 3 into the chassis 1 again to crush the non-standard straw particles again. This process repeats until they meet the standards;

[0031] Similarly, during the crushing and grinding work, as the linkage frame 13 reciprocates, the linkage frame 13 will drive the piston plate 22 to reciprocate in the air box 18 through the driving frame 23. Further, under the current-limiting and conducting action of the air extraction pipe 19 and the exhaust pipe 20, a negative pressure will be formed at the diversion seat 24, causing the dust generated during the crushing process inside the chassis 1 to be entrained by the air flow, enter the air box 18 through the air extraction pipe 19, and enter the dust collection box 25 through the exhaust pipe 20 for centralized collection under the conducting action of the exhaust pipe 20 and the one-way valve 21.

[0032] Finally, it should be noted that the above are only preferred examples 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 described 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 within the protection scope of the present invention.

Claims

1. A straw grinder for rice planting, comprising a chassis (1), characterized in that: Feeding barrels (2) are installed on both side end faces of the chassis (1). Crushing rollers (3) are symmetrically and rotatably installed inside the chassis (1). Tooth discs (4) are installed at the ends of the crushing rollers (3). A spiral blade (5) is rotatably installed inside the feeding barrel (2). Bevel gears (6) are rotatably installed at the top of the side end face and the middle of the top end of the feeding barrel (2). Driving wheels (7) are installed in the middle of the side end faces of the tooth discs (4) and the bevel gears (6). A driving belt (8) is sleeved outside the driving wheels (7). A motor (9) is installed on one side of the side end face of the chassis (1). Linkage wheels (10) are symmetrically and rotatably installed on the other side end face of the chassis (1). A linkage belt (11) is sleeved outside the linkage wheels (10). A clamping column (15) is rotatably installed in the middle of the side end face of the linkage belt (11). A scraping and leaking plate (12) is slidably installed at the bottom position of the crushing roller (3) inside the chassis (1). Linkage frames (13) are installed at the corners of the side end face of the scraping and leaking plate (12). A conversion seat (14) is installed at the end of the linkage frame (13) corresponding to the position of the clamping column (15). A screening plate (17) is embedded and installed at the bottom position of the scraping and leaking plate (12) inside the chassis (1). An aggregate drawer (16) is embedded and slidably installed at the bottom of the side end face of the chassis (1).

2. The straw pulverizer for rice planting according to claim 1, characterized in that, The spiral directions of the two spiral blades (5) are opposite. The spiral blade (5) is connected to the driving wheel (7) through the bevel gear (6). The output shaft of the motor (9) is connected to the tooth disc (4) through the driving wheel (7). One of the linkage wheels (10) is fixedly connected to the crushing roller (3). The input end of the motor (9) is electrically connected to the output end of an external power supply.

3. A straw pulverizer for rice planting according to claim 1, characterized in that, The sieve hole size of the screening plate (17) is the same as the leaking hole size of the scraping and leaking plate (12). The bottom end of the scraping and leaking plate (12) fits with the top end of the screening plate (17).

4. A straw pulverizer for rice planting according to claim 1, characterized in that, The length of the linkage frame (13) is more than twice the width of the screening plate (17). The bottom end of the feeding port of the feeding barrel (2) is flush with the bottom end of the scraping and leaking plate (12). The bottom end of the discharging port of the feeding barrel (2) is higher than the highest point of the crushing roller (3).

5. A straw grinder for rice planting according to claim 1, characterized in that, An air box (18) is installed at the bottom of the other side end face of the chassis (1). Air extraction pipes (19) are symmetrically installed at the top edge of the air box (18). Exhaust pipes (20) are symmetrically installed at the bottom edge of the air box (18). Check valves (21) are installed at the ends of the air extraction pipes (19) and the exhaust pipes (20). A piston plate (22) is slidably installed inside the air box (18). A driving frame (23) is installed in the middle of the side end face of the piston plate (22). A diversion seat (24) is embedded and installed at the bottom of the side end face of the chassis (1). A dust collection box (25) is installed at the bottom end of the feeding barrel (2).

6. A straw grinder for rice planting according to claim 5, characterized in that, The piston plate (22) is connected to the diversion seat (24) through an air extraction pipe (19), the piston plate (22) is connected to the dust collection box (25) through an exhaust pipe (20), a dust collection drawer is slidably installed by being embedded in the side end face of the dust collection box (25), a filter screen is arranged in the middle of the side end face of the diversion seat (24), the aperture of the filter screen is smaller than the aperture of the screening plate (17), and the piston plate (22) is connected to the linkage frame (13) through a driving frame (23).

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