Adjustable soil covering and pressing device for seeding machine

Abstract

The adjustable soil covering and pressing device comprises a first installation frame, a second installation frame and an adjusting mechanism, the adjusting mechanism comprises a two-way threaded rod, the two ends of the two-way threaded rod are rotationally connected with the first installation frame and the second installation frame respectively, and sleeve blocks are arranged on the opposite threaded sections of the two-way threaded rod in a threaded and sleeved mode. Connecting rods are symmetrically hinged to the ends, close to each other, of the sleeve blocks, the connecting rods on the same side are hinged to the same connecting base, the ends, away from each other, of the connecting bases are connected with a first soil covering disc and a second soil covering disc respectively, and the adjusting mechanism further comprises limiting plates arranged at the bottom ends of the sleeve blocks. According to the soil covering and pressing device, the soil covering distance between the first soil covering disc and the second soil covering disc is adjusted through the adjusting mechanism, so that the soil covering distance can be adjusted according to the actual sowing condition, and the flexibility and universality of the soil covering and pressing device are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of seed drills, in particular to an adjustable soil covering and pressing device for seed drills. Background Art

[0002] The soil covering and compacting device of a seeder is usually used when planting crops to cover the sown seeds with soil and gently compact the soil to ensure that the seeds can grow smoothly.

[0003] In the prior art, the soil covering and suppressing device generally has a soil covering plate fixedly arranged on the seed drill, and the soil covering spacing of the soil covering plate is fixed, and the soil covering spacing cannot be adjusted according to the actual seeding situation, which makes the soil covering and suppressing device insufficiently flexible. Utility Model Content

[0004] The utility model aims at solving the problems in the prior art and proposes the following technical solutions:

[0005] The utility model provides an adjustable soil covering and pressing device for a seed drill, comprising:

[0006] Mounting frame 1 and mounting frame 2,

[0007] The adjusting mechanism comprises a bidirectional threaded rod, the two ends of the bidirectional threaded rod are respectively rotatably connected to the first mounting frame and the second mounting frame, the opposite threaded sections of the bidirectional threaded rod are threadedly sleeved with sleeve blocks, the ends of the sleeve blocks close to each other are symmetrically hinged with connecting rods, the connecting rods on the same side are hinged with the same connecting seat, the ends of the connecting seats away from each other are respectively connected with the first covering plate and the second covering plate, and the adjusting mechanism also comprises a limit plate arranged at the bottom end of the sleeve block;

[0008] The bidirectional threaded rod rotates to drive the sleeve blocks on the opposite threaded sections to move closer to or farther away from each other so as to adjust the distance between the first soil covering plate and the second soil covering plate.

[0009] As a preferred embodiment of the above technical solution, a suppression wheel is rotatably provided on the second mounting frame.

[0010] As a preferred embodiment of the above technical solution, the limiting plate is arranged in a U shape, the sleeve block is arranged at the open end of the limiting plate, and the sleeve block moves along the extending direction of the limiting plate.

[0011] As a preferred embodiment of the above technical solution, a driving member is further provided on the mounting frame, and an output end of the driving member is fixedly connected to the end portion of the bidirectional threaded rod.

[0012] As a preferred embodiment of the above technical solution, a "V"-shaped inclined surface structure is formed between the first soil covering plate and the second soil covering plate.

[0013] The beneficial effects of the utility model are:

[0014] The utility model realizes the adjustment of the soil covering distance between the first soil covering plate and the second soil covering plate by means of the adjustment mechanism, so that the soil covering distance can be adjusted according to the actual sowing situation, thereby increasing the flexibility and versatility of the soil covering and suppressing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The diagram shows a top view of the soil covering and pressing device in the embodiment;

[0016] Figure 2 The diagram shows the connection between the soil covering plate and the adjusting mechanism in the embodiment;

[0017] Figure numerals: 11, mounting frame 1; 12, mounting frame 2; 21, soil covering plate 1; 22, soil covering plate 2; 31, bidirectional threaded rod; 32, sleeve block; 33, connecting rod; 34, connecting seat; 35, limit plate; 36, driving member; 41, suppression wheel. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0019] Example

[0020] like Figure 1 , Figure 2 As shown, Figure 1 The diagram shows a top view of the soil covering and pressing device in the embodiment; Figure 2 The diagram shows the connection between the soil covering plate and the adjusting mechanism in the embodiment;

[0021] The device includes:

[0022] Mounting frame 11 and mounting frame 2 12,

[0023] The adjusting mechanism includes a bidirectional threaded rod 31, and the two ends of the bidirectional threaded rod 31 are respectively rotatably connected to the mounting frame 11 and the mounting frame 2 12. The opposite threaded sections of the bidirectional threaded rod 31 are threadedly sleeved with sleeve blocks 32. The ends of the sleeve blocks 32 close to each other are symmetrically hinged with connecting rods 33. The connecting rods 33 on the same side are hinged with the same connecting seat 34. The ends of the connecting seats 34 far away from each other are respectively connected with the covering plate 1 21 and the covering plate 2 22. The adjusting mechanism also includes a limit plate 35 arranged at the bottom of the sleeve block 32;

[0024] The bidirectional threaded rod 31 rotates to drive the sleeve blocks 32 on the opposite threaded sections to move closer to or farther away from each other so as to adjust the distance between the soil covering plate 1 21 and the soil covering plate 2 22 .

[0025] By means of the provided adjustment mechanism, the soil covering distance between the soil covering plate 1 21 and the soil covering plate 2 22 can be adjusted, so that the soil covering distance can be adjusted according to the actual sowing situation, thereby increasing the flexibility and versatility of the soil covering and suppressing device.

[0026] When the bidirectional threaded rod 31 rotates, the sleeve blocks 32 on the opposite threaded sections will approach or move away from each other. When approaching each other, the connecting seats 34 on both sides are driven to approach or move away from each other under the action of the connecting rod 33, so that the connecting seats 34 drive the covering plate 1 21 and the covering plate 2 22 to approach or move away from each other.

[0027] A "V"-shaped inclined surface structure is formed between the soil covering plate 1 21 and the soil covering plate 2 22 to generate a squeezing force on the soil in the seed trench during the operation, thereby achieving soil covering work.

[0028] Four connecting rods 33 are symmetrically arranged, and the connection modes of the connecting rods 33 with the sleeve block 32 and the connecting seat 34 are all hinged. Specifically, the hinge is realized by arranging a structure in which a shaft and an ear plate cooperate with each other, that is, a rotation connection.

[0029] The two ends of the limit plate 35 are respectively connected to the mounting frame 11 and the mounting frame 2 12, and are arranged parallel to the bidirectional threaded rod 31. The limit plate 35 is arranged in a U shape, and the sleeve block 32 is arranged at the open end of the limit plate 35, and the sleeve block 32 moves along the extension direction of the limit plate 35.

[0030] The shape of the sleeve block 32 matches that of the limit plate 35 , and the sleeve block 32 is movably embedded in the open end of the limit plate 35 . The limit plate 35 can limit the sleeve block 32 when the bidirectional threaded rod 31 rotates, thereby preventing the sleeve block 32 from rotating with the rotation of the bidirectional threaded rod 31 .

[0031] The mounting frame 12 is also provided with a pressing wheel 41 which is rotatable and compacts the covered soil by rotating.

[0032] After the soil covering plate 1 21 and the soil covering plate 2 22 complete the soil covering work, the pressing wheel 41 compacts the soil with a slight pressure.

[0033] A driving member 36 is also provided on the mounting frame 11 , and an output end of the driving member 36 is fixedly connected to the end of the bidirectional threaded rod 31 that is close to the output end.

[0034] The driving member 36 is a motor, and the driving member 36 is embedded and fixedly arranged on the mounting frame 11 near one end of the bidirectional threaded rod 31 , and the driving member 36 plays a role in driving the bidirectional threaded rod 31 to rotate.

[0035] Working principle: When the device is in use, the soil covering spacing can be adjusted according to the actual sowing situation through the adjustment mechanism. The adjustment principle is as follows: turn on the driving member 36, and the driving member 36 drives the bidirectional threaded rod 31 to rotate, thereby driving the sleeve blocks 32 on the opposite threaded segments to approach each other to increase the distance between the soil covering plate 1 21 and the soil covering plate 2 22. The driving member 36 can also be rotated in the opposite direction to drive the sleeve blocks 32 on the opposite threaded segments to move away from each other, thereby reducing the distance between the soil covering plate 1 21 and the soil covering plate 2 22.

[0036] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. An adjustable soil covering and pressing device for a seed drill, characterized in that: include: Mounting frame 1 (11) and mounting frame 2 (12), An adjustment mechanism, the adjustment mechanism comprising a bidirectional threaded rod (31), the two ends of the bidirectional threaded rod (31) being rotatably connected to a first mounting frame (11) and a second mounting frame (12), respectively; sleeve blocks (32) are threadedly sleeved on opposite threaded sections of the bidirectional threaded rod (31); connecting rods (33) are symmetrically hingedly arranged at the ends of the sleeve blocks (32) close to each other, the connecting rods (33) on the same side are hingedly arranged with the same connecting seat (34), and soil covering disc 1 (21) and soil covering disc 2 (22) are respectively connected at the ends of the connecting seats (34) away from each other, and the adjustment mechanism also comprises a limit plate (35) arranged at the bottom end of the sleeve block (32); The bidirectional threaded rod (31) rotates to drive the sleeves (32) on the opposite threaded sections to move closer to or farther away from each other so as to adjust the distance between the first soil covering plate (21) and the second soil covering plate (22).

2. The adjustable soil covering and pressing device for a seed drill according to claim 1, characterized in that: The second mounting frame (12) is also rotatably provided with a pressing wheel (41).

3. The adjustable soil covering and pressing device for a seed drill according to claim 1, characterized in that: The limiting plate (35) is arranged in a U shape, the sleeve block (32) is arranged at the open end of the limiting plate (35), and the sleeve block (32) moves along the extension direction of the limiting plate (35).

4. The adjustable soil covering and pressing device for a seed drill according to claim 1, characterized in that: A driving member (36) is also provided on the first mounting frame (11), and an output end of the driving member (36) is fixedly connected to the end of the bidirectional threaded rod (31) that is close to the output end.

5. The adjustable soil covering and pressing device for a seed drill according to claim 1, characterized in that: A "V"-shaped inclined surface structure is formed between the first soil covering plate (21) and the second soil covering plate (22).

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