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CN-121970573-A - Novel double-row sowing unit

CN121970573ACN 121970573 ACN121970573 ACN 121970573ACN-121970573-A

Abstract

A novel double-row sowing unit relates to the technical field of sowing of agricultural machinery, provides structural improvement for the complicated problem of the row spacing adjustment mode of the existing double-row sowing machine, replaces a swinging shaft with two mutually communicated hydraulic cylinders to realize the linkage function of double-row sowing, solves the complicated adjustment problem at the same time, and is mainly applied to double-row sowing operation of crops.

Inventors

  • CUI DONGYANG

Assignees

  • 崔东阳

Dates

Publication Date
20260505
Application Date
20260324

Claims (10)

  1. 1. The utility model provides a novel double row seeding unit, includes preceding adjustment roof beam, back adjustment roof beam, left stand, right stand, seeding unit first half, seeding unit left back half, seeding unit right back half, left double connecting rod, right double connecting rod, center pin, rocker, characterized by: the front half part of the seeding unit is provided with a front adjusting beam and a rear adjusting beam, the left upright post is detachably fixed on the rear adjusting beam, the right upright post is detachably fixed on the front adjusting beam, the front end of the left double-connecting rod is hinged with a double-connecting rod shaft fixedly arranged on the left upright post, the rear end of the left double-connecting rod is hinged with a double-connecting rod shaft fixedly arranged on the front end of the left rear half part of the seeding unit, the front end of the right double-connecting rod is hinged with a double-connecting rod shaft fixedly arranged on the right upright post, the rear end of the right double-connecting rod is hinged with a double-connecting rod shaft fixedly arranged on the front end of the right rear half part of the seeding unit, two ends of a swing shaft are respectively hinged with two rear half parts of the seeding unit, and the swing shaft is hinged with the front half part of the seeding unit through a central shaft.
  2. 2. The novel double row sowing unit as claimed in claim 1, wherein the double connecting rod is hinged with the double connecting rod shaft through a tapered roller bearing.
  3. 3. The novel double row sowing unit as claimed in claim 1, wherein the connecting shaft has a cylindrical structure.
  4. 4. The double-row sowing unit with the linkage of the hydraulic cylinders comprises a sowing unit front half part, a sowing unit left rear half part, a sowing unit right rear half part, a left double-connecting rod, a right double-connecting rod, a left hydraulic cylinder, a right hydraulic cylinder and an oil pipe, and is characterized in that the left double-connecting rod is hinged between the sowing unit front half part and the sowing unit left rear half part, the right double-connecting rod is hinged between the sowing unit front half part and the sowing unit right rear half part, the left hydraulic cylinder is hinged between the sowing unit front half part and the sowing unit left rear half part, the right hydraulic cylinder is hinged between the sowing unit front half part and the sowing unit right rear half part, and the oil pipe is communicated with the left hydraulic cylinder and the right hydraulic cylinder.
  5. 5. The hydraulic cylinder linked double-row sowing unit as claimed in claim 4, wherein the left and right hydraulic cylinders are double-acting.
  6. 6. The hydraulic cylinder linked double-row sowing unit as claimed in claim 4, wherein the oil pipe is provided with a ball valve.
  7. 7. The hydraulic cylinder linked double-row sowing unit as claimed in claim 4, wherein the left rear half of the sowing unit and the right rear half of the sowing unit realize a linkage function through two hydraulic cylinders which are mutually communicated.
  8. 8. The hydraulic cylinder linked double-row sowing unit as claimed in claim 4, wherein the left and right hydraulic cylinders are double-acting and have identical structures.
  9. 9. A hydraulic cylinder linked double-row sowing unit is characterized in that two mutually communicated hydraulic cylinders are used for replacing a swinging shaft to realize the linkage function of the left and right rear halves, the linkage function can be understood as that the left rear half of the sowing unit and the right rear half of the sowing unit do seesaw movement by taking the front half of the sowing unit as a fulcrum, one side of the sowing unit ascends and the other side descends, and vice versa, so that the double-row sowing unit can realize profiling ditching sowing, the adaptability of the inclined ridge condition is strong, the row spacing adjustment is greatly simplified, the adjustment row spacing is simpler as long as the length of a communicating oil pipe to be adjusted is reserved in advance, the row spacing can be adjusted at will only by loosening nuts of U-shaped screws 14, no traction is caused between the rear halves of the two sowing units, and the nuts of the U-shaped screws are screwed after the adjustment.
  10. 10. The hydraulic cylinder linked double-row sowing unit as claimed in claim 4, wherein the linkage function realized by the mutually communicated hydraulic cylinders can also be applied to the sowing machine land wheel.

Description

Novel double-row sowing unit Technical Field The invention belongs to agricultural seeding machinery, and particularly relates to a novel double-row seeding unit. Background The prior patent CN223943208U discloses a conjoined seeding unit, wherein the upper double connecting rods and the lower connecting shafts are required to be adjusted simultaneously during row spacing adjustment, the front ends of the upper double connecting rods are required to be adjusted separately, the lower connecting shaft ends adopt a shoe-shaped structure, the disassembling and the adjusting are inconvenient, the upper and the lower adjustment are required to be carried out simultaneously, the mutual involvement and the complicated adjustment are required, and the invention provides improvement aiming at the problem to enhance the practicability of machinery. Disclosure of Invention In order to overcome the defects in the prior art, the invention provides an adjustable double-row seeder which is used for solving the technical problems. The invention solves the technical problems by adopting a technical scheme that in order to overcome the defects of the prior art, the invention discloses a novel double-row sowing unit so as to solve the problems. The technical scheme adopted by the invention for solving the problems is as follows: the invention discloses a novel double-row sowing unit, which comprises four connecting rods, a front half part of the sowing unit, a left rear half part of the sowing unit, a right rear half part of the sowing unit, a left double-connecting rod, a right double-connecting rod, a left hydraulic cylinder, a right hydraulic cylinder, an oil pipe, a swinging shaft, a ditching disc, a depth limiting wheel and a pressing wheel, wherein the novel double-row sowing unit adopts a novel structure to replace a complex adjusting mechanism; aiming at the problem that the disassembly, assembly and adjustment of the connecting shaft below are inconvenient, the end part of the connecting shaft is changed into a cylindrical structure, the end part of the connecting shaft is provided with a pin hole, a movable flat gasket is used for replacing the shoe-shaped end part of the shoe-shaped gold ingot, and a B-shaped pin is used for blocking the flat gasket, so that the connecting shaft is prevented from falling off in working; When the row spacing is adjusted, the row spacing is widened, at the moment, two rear half parts of the sowing unit need to move outwards, the outer side is in a direction away from the swing shaft, a B-shaped pin is pulled out, a flat gasket is detached, a nut of a U-shaped screw is loosened, the rear half part of the sowing unit is moved to reach the position with the set row spacing, when the rear half part of the sowing unit moves outwards, the connecting shaft is driven to smoothly deviate from a long hole at the end part of the swing shaft, after the row spacing is adjusted, the nut of the U-shaped screw is screwed, the rear half part of the sowing unit is fixed in operation, then a single nut is loosened, the connecting shaft is rotated to move inwards (in the direction of the swing shaft) to be hinged with a recovery shaft hole of the swing shaft, the flat gasket is installed to be inserted back into the B-shaped pin, and the single nut is screwed to enable the connecting shaft to be fixed in operation. The other adjustment is to narrow the row spacing, at this time, the two rear halves of the sowing unit need to be adjusted to move towards the direction of the inward swinging shaft, namely, the B-shaped pin is pulled out, the flat gasket is removed, the single nut is unscrewed, the connecting shaft is rotated to enable the connecting shaft to move outwards, the connecting shaft is difficult to master due to the fact that the outward moving distance is too much, or the connecting shaft is removed for later use, the connecting shaft is reinstalled after the row spacing adjustment of the sowing unit is finished, the connecting shaft is hinged with the swinging shaft long hole in a restoration mode, the flat gasket is installed, the B-shaped pin is inserted back, the single nut is screwed, and the connecting shaft can be fixed in work. The new structure greatly simplifies the row spacing adjustment method and is more convenient to use. In order to simplify the adjustment of the row spacing and facilitate the use, the invention provides a brand new double-row sowing unit structure, which is characterized in that a swinging shaft, a connecting shaft and a central shaft are omitted on the original structure, two mutually communicated hydraulic cylinders are added, the left and right half parts of the sowing unit structure can be operated in a linkage way through the mutually communicated two hydraulic cylinders, thereby replacing the swinging shaft to operate, the double-row sowing unit structure is further modified, the row spacing can be adjusted only by loosening a nut of a U-shaped screw wh