CN102124841B - Ditching machine for seeder - Google Patents

Abstract

The invention relates to a ditch opener for a seeder, which comprises a sower beam, a ditch opener and a shank connected between the sower beam and the ditch opener, and is characterized in that the upper end of the shank is hinged to the sower by a cylindrical pin The upper and lower ends of the crossbeam are fixedly connected with the opener. The crossbeam of the planter is provided with front and rear limiters on both sides of the handle column, so that when the handle column swings to the front limiter, the tip of the opener It is just below the cylindrical pin. When the handle column swings from the front limit block to the rear limit block, the swing angle of the handle column is 8-10°. An adjustment spring is added, and the upper end of the adjustment spring is fixed on the beam of the planter. And it is located at the front end of the front limit block, and the other end is hinged on the lower half of the handle column. A wet soil return cut is provided at the rear and lower part of the opener, and the lower ends of the fertilizer guide pipe and the seed guide pipe are inserted into the opener. The fertilizer guide pipe is located at the front end of the seed guide pipe, and the fertilizer discharge port of the fertilizer guide pipe is lower than the seed discharge port of the seed guide pipe. The invention ditches at one time, sows seeds at different depths at the same time, and has excellent working performance.

Description

Ditch openers for planters

technical field

The invention relates to a ditch opener for a seeder, which belongs to the technical field of agricultural machinery.

Background technique

As an important part of the seeder, the opener is commonly used as a fixed-position ditching method. Because the entry angle remains unchanged, this method can only meet the sowing requirements of arable land under single tillage conditions. For the current promotion of no-tillage For seeding, it is difficult to ensure the depth of trenching due to the fixed entry angle, which limits the versatility of the seeder application. Secondly, since most of the current sowing is the same application of seed and fertilizer, and the fertilization between rows is used, it not only increases the complexity of the structure of the planter, but also due to the small distance between the seed and fertilizer openers, often occurs in the no-tillage sowing process. The congestion of straw and weeds in front of the ditch has seriously affected the operation quality of the seeder, and sometimes it cannot even be sown. In addition, because the inter-row sowing is far away from the plants, the utilization rate of fertilizers is also affected.

The shovel type ditch opener is currently the most commonly used ditch opener for domestic corn no-tillage planters. It has stable working quality, but it is easy to block; and it has poor adaptability to different ground conditions; although the disc type ditch opener does not exist Congestion problem, but due to its poor soil penetration, it is difficult to guarantee the trenching depth for different ground conditions.

Contents of the invention

The object of the present invention is to provide a ditch opener for a seeder that can overcome the above-mentioned defects, improve the adaptability of the seeder, and have excellent working performance. Its technical solution is:

It includes a seeder beam, a ditch opener, and a shank connected between the sower beam and the ditch opener, and is characterized in that the upper end of the shank is hinged on the sower beam by a cylindrical pin, and the lower end is fixedly connected with the ditch opener , the crossbeam of the planter is provided with a front limit block and a rear limit block on both sides of the handle column, so that when the handle column swings to the front limit block, the tip of the opener is just below the cylindrical pin, and when the handle When the column swings from the front limit block to the rear limit block, the swing angle of the handle column is 8 to 10°. An adjustment spring is added. The upper end of the adjustment spring is fixed on the beam of the planter and is located at the front end of the front limit block. One end is hinged on the lower half of the handle column. A wet soil return cut is provided at the rear and lower part of the opener. The fertilizer outlet of the fertilizer pipe is lower than the seed outlet of the seed introduction pipe.

Its working principle is as follows: the upper end of the handle column is hinged on the beam of the planter by a cylindrical pin, and the lower end is fixedly connected with the opener. Usually, the adjustment spring is pulled forward to make the handle column close to the front limit block, and the opener The tip of the opener is just below the straight pin to ensure that the opener can sow on the cultivated land or soft cultivated land with a small entry angle; when the seeder is working on the hard stubble field, the adjustment spring is pulled due to the increase in the surface ditching resistance. Long, the handle column drives the opener to swing back around the cylindrical pin by 8-10°, and the entry angle of the opener increases to ensure the normal entry of the opener into the soil and the consistency of the trenching depth.

Compared with the prior art, the present invention has the following advantages:

1. The handle column can rotate around the cylindrical pin on the beam of the planter, which ensures the penetration of the opener on soft and hard stubble ground, and improves the adaptability of the planter to different operating environments.

2. The adjustment of the entry angle of the opener adopts the way of adjusting the spring to pull the hinged handle column, so as to realize the automatic adjustment of the entry angle of the opener under different ground conditions.

3. The ditch opener with the wet soil return cut can realize one ditching and prepare two seed beds with different depths for fertilizer and seeds, which is beneficial to improve the utilization rate of fertilizer.

4. The ditch opener with the wet soil return cut is beneficial to realize the fertilization control between species and bottom layer, and meet the fertilization and seeding requirements of crops with different agronomic requirements.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the figure: 1. Seeder beam 2. Adjusting spring 3. Handle post 4. Ditch opener 5. Front limit block 6. Rear limit block 7. Fertilizer guide tube 8. Seed guide tube 9. Straight pin 10. Wet Soil Reflow Cut

Detailed ways

The upper end of the handle column 3 is hinged on the seeder beam 1 by a cylindrical pin 9, and the lower end is fixedly connected with the opener 4. The seeder beam 1 is provided with a front limit block 5 and a rear limit block on both sides of the handle column 3. Block 6, so that when the handle column 3 swings to the front limit block 5, the tip of the opener 4 is just below the cylindrical pin 9, and when the handle column 3 swings from the front limit block 5 to the rear limit block 6 , The swing angle of the handle column 3 is 8-10°, the upper end of the adjustment spring 2 is fixed on the beam 1 of the planter, and is located at the front end of the front limit block 5, and the other end is hinged on the lower half of the handle column 3, ditching The back bottom of device 4 is provided with wet soil return otch 10, and the lower end of manure guide pipe 7, seed guide pipe 8 probes in ditch opener 4, and manure guide pipe 7 is positioned at the front end of seed guide pipe 8, the row of manure guide pipe 7. Fertilizer mouth is lower than the seed discharge port of seed introduction pipe 8.

During work, after the ditch opener 4 with the wet soil backflow otch 10 opened the seed ditch on the surface, the fertilizer guide pipe 7 at first introduced the fertilizer into the bottom of the ditch to realize fertilization at the bottom of the ditch; Enter the ditch opener 4 to complete the burial of the fertilizer at a fixed depth, and form a V-shaped seed ditch. The seeds fall into the formed seed bed through the seed guide tube 8, and the seeds are sown at a shallower depth.

Claims (1)

1. A ditch opener for a planter, comprising a sower crossbeam (1), a ditch opener (4) and a handle post (3) connected between the sower crossbeam (1) and the ditch opener (4), It is characterized in that: the upper end of the handle column (3) is hinged on the seeder beam (1) by a cylindrical pin (9), the lower end is fixedly connected with the opener (4), and the seeder beam (1) is located at the handle column ( 3) There are front limit blocks (5) and rear limit blocks (6) on both sides, so that when the handle column (3) swings to the front limit block (5), the tip of the opener (4) is exactly Right below the cylindrical pin (9), when the shank (3) swings from the front limit block (5) to the rear limit block (6), the swing angle of the shank (3) is 8-10°. Adjust the spring (2), the upper end of the adjustment spring (2) is fixed on the crossbeam (1) of the planter, and is located at the front end of the front limit block (5), and the other end is hinged on the lower half of the handle column (3). The back and lower part of the trencher (4) is provided with a wet soil return otch (10), and the lower ends of the fertilizer guide pipe (7) and the seed guide pipe (8) penetrate into the ditch opener (4), and the fertilizer guide pipe (7) Located at the front end of the seed introduction pipe (8), the fertilizer outlet of the fertilizer guide pipe (7) is lower than the seed outlet of the seed introduction pipe (8).