Straw returning device

Abstract

The invention discloses a straw returning device which comprises a straw smashing mechanism and a fertilizing and mixing mechanism, the straw smashing mechanism is composed of a protective cover and a smashing cylinder, a gear box is arranged in the protective cover, a ratchet wheel is connected in the gear box through a first bevel gear set, the smashing cylinder is located above the protective cover, and a first bevel gear set is arranged in the smashing cylinder. A knife rest connected with a motor is arranged in the crushing cylinder, a blade is arranged on the knife rest, and a discharge pipe is arranged in the tangential direction of the inner wall of the crushing cylinder; the fertilizing and mixing mechanism consists of a carriage and an excrement tank; the rotation directions of the two ratchet wheels in the same gear box are opposite, straw on the ground is grabbed out, soil and the straw are separated through the ratchet wheels, then the straw is crushed, then the crushed straw and fermented livestock and poultry manure are mixed and stirred to be uniform, and finally the aim of rapidly degrading the straw and returning the straw to the field is achieved.

Description

Technical Field

[0001] The invention relates to a straw processing device, in particular to a straw returning device. Background Art

[0002] Continuous cultivation of the land and the application of chemical fertilizers have led to a lack of organic matter in the soil, soil compaction, and severe damage to the microbial community, resulting in a decline in soil fertility and reduced crop yields. At the same time, agricultural production produces a large amount of above-ground and underground straw, which affects spring seed germination, and conventional straw covering degrades too slowly, which is not conducive to the rapid circulation of organic matter.

[0003] SUMMARY OF THE INVENTION

[0004] The technical task of the present invention is to provide a straw returning device to the field in view of the deficiencies of the above prior art.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a straw returning device, including a straw crushing mechanism and a fertilizer mixing mechanism, the straw crushing mechanism is composed of a protective cover and a crushing barrel, an auxiliary wheel is arranged outside the protective cover, a gear box is arranged inside the protective cover, a first transmission shaft is arranged inside the gear box, a first active bevel gear is respectively arranged on the first transmission shafts at both ends of the gear box, a first driven bevel gear is meshed on the first active bevel gear, a first support shaft is arranged on the first driven bevel gear, the first support shaft is connected with the protective cover after passing through the gear box, a plurality of ratchets are arranged on the first support shaft between the protective cover and the gear box, the crushing barrel is located above the protective cover, a motor is arranged on the top of the crushing barrel, a knife holder connected to the motor is arranged inside the crushing barrel, a blade is arranged on the knife holder, and a discharge pipe is arranged in the tangential direction of the inner wall of the crushing barrel.

[0006] The fertilization mixing mechanism is composed of a carriage and a manure box. A second transmission shaft and a second supporting shaft are arranged in the carriage. A second active bevel gear is arranged at the end of the second transmission shaft. A second driven bevel gear, a sprocket and a plurality of plane bevel gears are arranged on the second supporting shaft. The second driven bevel gear is meshed with the second active bevel gear. A transmission bevel gear is meshed on the plane bevel gear. The end of the transmission bevel gear is connected to the second supporting shaft through a connecting shaft. Both ends of the connecting shaft are respectively connected to the transmission bevel gear and the second supporting shaft through bearings. A rotating mechanism is arranged at the front end of the transmission bevel gear. A hydraulic telescopic arm is connected to the middle of the rotating mechanism. The other end of the hydraulic telescopic arm is connected to the carriage.

[0007] A plurality of supporting wheels are provided at the bottom of the manure box, and a conveyor belt is provided on the supporting wheels. The sprocket is connected to the frontmost supporting wheel through a chain. The discharge port of the manure box is located at the front end of the carriage. After passing through the protective cover, both ends of the first transmission shaft are respectively connected to the output shaft and the second transmission shaft of the tractor through a universal coupling.

[0008] Further improvement: two gear boxes are arranged in the protective cover, the two first driving bevel gears in the same gear box are symmetrically arranged, and the two first driven bevel gears are of different sizes.

[0009] Further improvement: an arc-shaped baffle is provided at the outlet of the top of the protective cover, and the baffle faces the inlet of the discharge pipe.

[0010] Further improvement: both ends of the protective cover are connected to the tractor and the carriage respectively through pull rods.

[0011] The advantages of the present invention are as follows: the two ratchets in the same gear box rotate in opposite directions, grabbing the straw on the ground, and the ratchets separate the soil from the straw, and then crushing the straw, and then mixing it with fermented livestock and poultry manure and stirring it evenly, ultimately achieving the goal of quickly degrading the straw and returning it to the field. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention.

[0013] Figure 2 It is a schematic diagram of the top view of the structure inside the protective cover of the present invention.

[0014] Figure 3 It is a transmission schematic diagram of the gear box of the present invention.

[0015] Figure 4 It is a transmission schematic diagram in the carriage of the present invention.

[0016] Figure 5 It is a connection schematic diagram of the conveyor belt of the present invention.

[0017] Figure 6 It is a schematic diagram of the top view of the structure inside the grinding cylinder of the present invention.

[0018] Figure 7 It is a structural schematic diagram of the tool holder and the blade of the present invention.

[0019] In the figure: tractor 1, protective cover 2, coupling 21, auxiliary wheel 22, gear box 3, first transmission shaft 31, first active bevel gear 32, first driven bevel gear 33, first support shaft 34, ratchet 35, crushing cylinder 4, motor 41, tool holder 42, blade 43, discharge pipe 44, baffle 45, carriage 5, plane bevel gear 50, second transmission shaft 51, second active bevel gear 52, second driven bevel gear 53, second support shaft 54, transmission bevel gear 55, rotation mechanism 56, hydraulic telescopic arm 57, connecting shaft 58, sprocket 59, manure box 6, support wheel 61, conveyor belt 62, chain 63, pull rod 7. DETAILED DESCRIPTION

[0020] The present invention is described in detail below with reference to the accompanying drawings.

[0021] As shown in the figure, a straw returning device includes a straw crushing mechanism and a fertilizer mixing mechanism, wherein the straw crushing mechanism is composed of a protective cover 2 and a crushing barrel 4, an auxiliary wheel 22 is provided outside the protective cover 2, a gear box 3 is provided inside the protective cover 2, a first transmission shaft 31 is provided inside the gear box 3, a first active bevel gear 32 is provided on each of the first transmission shafts 31 at both ends of the gear box 3, a first driven bevel gear 33 is meshed on the first active bevel gear 31, a first support shaft 34 is provided on the first driven bevel gear 33, the first support shaft 34 passes through the gear box 3 and is connected to the protective cover 2, a plurality of ratchets 35 are provided on the first support shaft 34 between the protective cover 2 and the gear box 3, the crushing barrel 4 is located above the protective cover 2, a motor 41 is provided on the top of the crushing barrel 4, a knife holder 42 connected to the motor 41 is provided inside the crushing barrel 4, a blade 43 is provided on the knife holder 42, the lengths of the blades 43 are not the same, and a discharge pipe 44 is provided in the tangential direction of the inner wall of the crushing barrel 4.

[0022] The fertilization mixing mechanism is composed of a carriage 5 and a manure box 6. A second transmission shaft 51 and a second supporting shaft 54 ​​are provided in the carriage 5. A second active bevel gear 52 is provided at the end of the second transmission shaft 51. A second driven bevel gear 53, a sprocket 59 and a plurality of plane bevel gears 50 are provided on the second supporting shaft 54. The second driven bevel gear 53 is meshed with the second active bevel gear 52. A transmission bevel gear 55 is meshed on the plane bevel gear 50. The end of the transmission bevel gear 55 is connected to the second supporting shaft 54 ​​through a connecting shaft 58. Both ends of the connecting shaft 58 are respectively connected to the transmission bevel gear 55 and the second supporting shaft 54 ​​through bearings. A rotating mechanism 56 is provided at the front end of the transmission bevel gear 55. A hydraulic telescopic arm 57 is connected to the middle of the rotating mechanism 56. The other end of the hydraulic telescopic arm 57 is connected to the carriage 5.

[0023] A plurality of support wheels 61 are provided at the bottom of the manure box 6, and a conveyor belt 62 is provided on the support wheel 61. The sprocket 59 is connected to the frontmost support wheel 61 through a chain 63. The discharge port of the manure box 6 is located at the front end of the carriage 5. After passing through the protective cover 2, both ends of the first transmission shaft 31 are respectively connected to the output shaft and the second transmission shaft 51 of the tractor 1 through the universal coupling 21.

[0024] Two gear boxes 3 are provided in the protective cover 2, and the two first active bevel gears 32 in the same gear box 3 are symmetrically arranged, and the two first driven bevel gears 33 are of different sizes; an arc-shaped baffle 45 is provided at the outlet of the top of the protective cover 2, and the baffle 45 faces the inlet of the discharge pipe 44; both ends of the protective cover 2 are connected to the tractor 1 and the carriage 5 respectively through a pull rod 7.

[0025] Its working principle is: first, when the whole device is towed by the tractor 1 on the road, the auxiliary wheels 22 on both sides of the protective cover 2 are in a lowered state. When the straw in the field needs to be processed, the auxiliary wheels 22 on both sides of the protective cover 2 are retracted first. At this time, the ratchet 35 contacts the ground. When working, the output shaft at the rear of the tractor 1 drives the first transmission shaft 31 to rotate, and the power is delivered to the first supporting shaft 34 through the first active bevel gear 32 and the first driven bevel gear 33, and drives the ratchet 35 to rotate. At this time, since the two first active bevel gears 32 in the same gear box 3 are symmetrically arranged, the ratchet 35 on the two first supporting shafts 34 in the same gear box 3 can rotate. The straw on the ground is directly grabbed. At the same time, because the two first driven bevel gears 33 in the same gear box 3 are of different sizes, the rotation speeds of the ratchet wheels 35 on the two first support shafts 34 are different, so that when the straw passes through the ratchet wheels 35, the ratchet wheels 35 will also squeeze and grind the straw, so that the soil on the straw can be quickly removed, and the straw is directly sent into the protective cover 2. At the same time, the knife holder 42 in the crushing barrel 4 starts to rotate driven by the motor 41, so that negative pressure is generated in the crushing barrel 4, and the straw in the protective cover 2 is sucked into the crushing barrel 4. The rotating blade 43 crushes the straw and then discharges it from the discharge pipe 44 and falls back to the ground.

[0026] Next, the second transmission shaft 51, driven by the first transmission shaft 31, drives the second support shaft 54 ​​to rotate through the second active bevel gear 52 and the second driven bevel gear 53, and then drives the turning mechanism 56 to rotate through the plane bevel gear 50 and the transmission bevel gear 55. At the same time, the sprocket 59 on the second support shaft 54 ​​drives the conveyor belt 62 to move through the chain 63, and the manure (farmyard manure) between the two adjacent scrapers on the transmission belt 62 is transported to the ground through the discharge port on the manure box 6, and the straw fragments that fall to the ground are mixed with the soil.

[0027] In this process, by controlling the extension and retraction of the hydraulic telescopic arm 57, the angle of the bricks can be changed to meet the mixing and stirring requirements in different situations.

[0028] Finally, a covering machine can be towed behind the carriage to directly cover the mixed soil to promote the fermentation of microorganisms.

[0029] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A straw returning device, characterized in that: It comprises a straw crushing mechanism and a fertilizer mixing mechanism, wherein the straw crushing mechanism is composed of a protective cover and a crushing barrel, an auxiliary wheel is arranged outside the protective cover, a gear box is arranged inside the protective cover, a first transmission shaft is arranged inside the gear box, a first driving bevel gear is respectively arranged on the first transmission shafts at both ends of the gear box, a first driven bevel gear is meshed on the first driving bevel gear, a first supporting shaft is arranged on the first driven bevel gear, the first supporting shaft is connected with the protective cover after passing through the gear box, a plurality of ratchets are arranged on the first supporting shaft between the protective cover and the gear box, the crushing barrel is located above the protective cover, a motor is arranged on the top of the crushing barrel, a knife holder connected with the motor is arranged inside the crushing barrel, a blade is arranged on the knife holder, and a discharge pipe is arranged in the tangential direction of the inner wall of the crushing barrel; The fertilizer mixing mechanism is composed of a carriage and a manure box, a second transmission shaft and a second supporting shaft are arranged in the carriage, a second active bevel gear is arranged at the end of the second transmission shaft, a second driven bevel gear, a sprocket and a plurality of plane bevel gears are arranged on the second supporting shaft, the second driven bevel gear is meshed with the second active bevel gear, a transmission bevel gear is meshed on the plane bevel gear, the end of the transmission transmission bevel gear is connected to the second supporting shaft through a connecting shaft, both ends of the connecting shaft are respectively connected to the transmission transmission bevel gear and the second supporting shaft through bearings, a rotating mechanism is arranged at the front end of the transmission transmission bevel gear, a hydraulic telescopic arm is connected to the middle of the rotating mechanism, and the other end of the hydraulic telescopic arm is connected to the carriage; A plurality of supporting wheels are provided at the bottom of the manure box, and a conveyor belt is provided on the supporting wheels. The sprocket is connected to the frontmost supporting wheel through a chain. The discharge port of the manure box is located at the front end of the carriage. After passing through the protective cover, both ends of the first transmission shaft are respectively connected to the output shaft and the second transmission shaft of the tractor through a universal coupling.

2. A straw returning device according to claim 1, characterized in that: Two gear boxes are arranged in the protective cover, and the two first driving bevel gears in the same gear box are symmetrically arranged, and the two first driven bevel gears are different in size.

3. A straw returning device according to claim 1, characterized in that: An arc-shaped baffle is provided at the outlet of the top of the protective cover, and the baffle faces the inlet of the discharge pipe.

4. The straw returning device according to claim 1, characterized in that: Both ends of the protective cover are connected to the tractor and the carriage respectively through pull rods.

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