Height adjusting device for press wheel of seeder

Abstract

The utility model belongs to the technical field of seeder press wheels, and particularly relates to a seeder press wheel height adjusting device which comprises a mounting plate and a rectangular frame, the rectangular frame is fixedly connected to the right side of the mounting plate, a movable plate is slidably connected to the inner side of the rectangular frame, and a round rod is fixedly connected to the lower side of the right end of the movable plate. The inner and outer ends of the rectangular frame and the lower ends of the round rods are connected with adjusting mechanisms. According to the height adjusting device for the press wheel of the seeding machine, before the press wheel is used, a handle is rotated to drive a first threaded rod to rotate in a first threaded hole and drive an adjusting plate to move, meanwhile, a rotating plate is rotated in a through groove and drives the press wheel to rotate to the required angle, then a motor is started, and an output shaft of the motor rotates to drive a second threaded rod to rotate; a movable plate on the outer side of a second threaded rod is driven to slide along the inner side of a rectangular frame until a press wheel below the movable plate is driven to move to the required working height, then a motor is stopped, and the seeder is started to work.

Description

Technical Field

[0001] The utility model relates to the technical field of seed drill pressing wheels, in particular to a seed drill pressing wheel height adjustment device. Background Art

[0002] There are several pressing wheels installed behind the seed box of the seeder. The pressing wheels are mainly used to cover the grooves after the seeder sows the seeds.

[0003] At present, the seeder needs to adjust the height of the pressing wheel when sowing in different soil types. The height of the pressing wheel needs to be adjusted sequentially. The adjustment process is cumbersome, wastes the staff's time, and affects the sowing efficiency of the seeder.

[0004] For example, the height adjustment device for the seed drill pressing wheel disclosed in Chinese patent CN204762009U sets a gear rotating shaft to mesh with the transverse gear, and the transverse gear is meshed with the vertical gear. By shaking the adjustment handle, the gear rotating shaft drives the transverse gear and the longitudinal gear, and the pressing wheel is adjusted at the same time to keep the adjustment height consistent. The adjustment is relatively convenient, which improves the seeding efficiency and does not affect the seed growth.

[0005] However, the pressing wheel in this seeder has a fixed angle and cannot be adjusted according to the angle of the ridge, so its adaptability is limited.

[0006] For this reason, we urgently need to provide a seeder pressing wheel height adjustment device with adjustable angle. Utility Model Content

[0007] The purpose of the utility model is to provide a height adjustment device for the pressure wheel of a seeder to solve the problem in the above background technology that the pressure wheel of the seeder has a fixed angle and cannot be adjusted according to the angle of the ridge, resulting in limited adaptability.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a height adjustment device for a seed drill pressing wheel, comprising a mounting plate and a rectangular frame, the rectangular frame being fixedly connected to the right side of the mounting plate, a movable plate being slidably connected to the inner side of the rectangular frame, a round rod being fixedly connected to the lower right side of the movable plate, an adjustment mechanism being connected to the inner and outer ends of the rectangular frame and the lower end of the round rod, the adjustment mechanism comprising an angle adjustment unit and a height adjustment unit, the angle adjustment unit being arranged at the lower end of the round rod, and the height adjustment unit being arranged at the inner and outer ends of the rectangular frame.

[0009] The angle adjustment unit includes a top plate, a side plate, a first threaded rod, a handle, a first bearing, an adjustment plate, a rotating plate and a pressing wheel. The top plate is fixedly connected to the lower end of the round rod, the side plate is fixedly connected to the front and rear ends of the lower side of the top plate, the first threaded rod is connected to the middle position inside the top plate, the handle is fixedly connected to the upper end of the first threaded rod, the first bearing is fixedly connected to the outer side of the lower end of the first threaded rod, the adjustment plate is fixedly connected to the outer side of the first bearing, the rotating plate is hinged to the left and right ends of the adjusting plate, and the pressing wheel is rotatably connected to the end of the rotating plate away from the adjusting plate.

[0010] A further improvement is that a first threaded hole is formed in the middle of the top plate, and the outer side of the first threaded rod is threadedly connected to the inner side of the first threaded hole. Therefore, when the handle is turned to drive the first threaded rod in the first threaded hole, the first threaded rod can be moved relative to the top plate, and the adjustment plate can be moved together with it.

[0011] A further improvement is that a through slot is formed at the lower end of the inner side plate, and the outer side of the rotating plate is slidably connected to the inner side of the through slot. Therefore, when the adjustment plate moves and drives the rotating plate to move, the rotating plate will rotate in the through slot, thereby driving the pressing wheel to rotate together, so that the angle of the pressing wheel can be adjusted to the desired angle.

[0012] A further improvement is that the height adjustment unit includes a motor, a second threaded rod, a second bearing and a limit rod, the motor is fixedly connected to the upper middle position of the rectangular frame, the second threaded rod is fixedly connected to the lower end of the output shaft of the motor, the second bearing is fixedly connected to the middle position of the inner bottom end of the rectangular frame, and the limit rod is vertically fixedly connected to the front and rear ends of the inner side of the rectangular frame.

[0013] A further improvement is that the movable plate has limit holes at the front and rear ends on the left side, and the outer side of the limit rod is slidably connected to the inner side of the limit hole. Therefore, when the movable plate is located inside the rectangular frame and moves, it can only move along the outer side of the limit rod, thus limiting the movement of the movable plate.

[0014] A further improvement is that a second threaded hole is provided in the center of the left side of the movable plate. The lower outer side of the second threaded rod is fixedly connected to the inner side of the second bearing, and the outer side of the second threaded rod is threadedly connected to the inner side of the second threaded hole. Thus, when the motor is started and its output shaft rotates, driving the second threaded rod to rotate, the movable plate outside the second threaded rod can be driven to slide along the inner side of the rectangular frame, thereby driving the pressing wheel below the movable plate to move together, so that the height of the pressing wheel can be adjusted according to the needs of sowing in different soil types.

[0015] A further improvement is that mounting holes are provided at the four corners of the mounting plate so that the pressing wheel can be installed by passing bolts through the mounting holes and then threading them onto the planter.

[0016] In summary, the present application discloses a height adjustment device for a seed drill pressing wheel.

[0017] In this technical solution, when the adjustment plate moves and drives the rotating plate to move, the rotating plate will rotate in the through slot, thereby driving the pressing wheel to rotate together, so that the angle of the pressing wheel can be adjusted to the desired angle.

[0018] Furthermore, by starting the motor and rotating its output shaft to drive the second threaded rod to rotate, the movable plate on the outside of the second threaded rod can be driven to slide along the inner side of the rectangular frame, thereby driving the pressing wheel under the movable plate to move together, so as to adjust the height of the pressing wheel according to the needs of sowing in different soil types. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a structural diagram of the height adjustment unit of the present invention;

[0021] Figure 3 This is a structural diagram of the pressing wheel of the present utility model;

[0022] Figure 4 This is a structural diagram of the angle adjustment unit of the present invention.

[0023] In the figure: 1. Mounting plate; 2. Rectangular frame; 3. Moving plate; 4. Round rod; 501. Top plate; 502. Side plate; 503. First threaded rod; 504. Handle; 505. First bearing; 506. Adjusting plate; 507. Rotating plate; 508. Pressing wheel; 601. Motor; 602. Second threaded rod; 603. Second bearing; 604. Limiting rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 4 , the utility model provides a technical solution: Example

[0026] A seed drill pressing wheel height adjustment device includes a mounting plate 1 and a rectangular frame 2. The rectangular frame 2 is fixedly connected to the right side of the mounting plate 1. A movable plate 3 is slidably connected to the inner side of the rectangular frame 2. A round rod 4 is fixedly connected to the lower right side of the movable plate 3. The inner and outer ends of the rectangular frame 2 and the lower end of the round rod 4 are connected to an adjustment mechanism. The adjustment mechanism includes an angle adjustment unit and a height adjustment unit. The angle adjustment unit is arranged at the lower end of the round rod 4, and the height adjustment unit is arranged at the inner and outer ends of the rectangular frame 2.

[0027] The angle adjustment unit includes a top plate 501, side plates 502, a first threaded rod 503, a handle 504, a first bearing 505, an adjustment plate 506, a rotating plate 507, and a pressure wheel 508. The top plate 501 is fixedly connected to the lower end of the round rod 4, the side plates 502 are fixedly connected to the front and rear ends of the lower side of the top plate 501, the first threaded rod 503 is connected to the middle position inside the top plate 501, the handle 504 is fixedly connected to the upper end of the first threaded rod 503, the first bearing 505 is fixedly connected to the outer side of the lower end of the first threaded rod 503, the adjustment plate 506 is fixedly connected to the outer side of the first bearing 505, the rotating plate 507 is hinged to the left and right ends of the adjustment plate 506, and the pressure wheel 508 is rotatably connected to the end of the rotating plate 507 away from the adjustment plate 506. A first threaded hole is opened in the middle position inside the top plate 501, and the outer side of the first threaded rod 503 is threadedly connected to the inner side of the first threaded hole. Therefore, when the handle 504 is rotated to drive the first threaded rod 503 located in the first threaded hole to rotate, the first threaded rod 503 can be moved relative to the top plate 501, and the adjustment plate 506 can be driven to move together.

[0028] A through slot is formed at the lower end of the side plate 502, and the outer side of the rotating plate 507 is slidably connected to the inner side of the through slot. Therefore, when the adjustment plate 506 moves and drives the rotating plate 507 to move, the rotating plate 507 rotates in the through slot, thereby driving the pressing wheel 508 to rotate together, so that the angle of the pressing wheel 508 can be adjusted to the desired angle. Example

[0029] Based on Example 1: The height adjustment unit includes a motor 601, a second threaded rod 602, a second bearing 603, and a limit rod 604. The motor 601 is fixedly connected to the upper middle position of the rectangular frame 2, the second threaded rod 602 is fixedly connected to the lower end of the output shaft of the motor 601, the second bearing 603 is fixedly connected to the middle position of the inner bottom end of the rectangular frame 2, and the limit rod 604 is vertically fixedly connected to the front and rear ends of the inner side of the rectangular frame 2. Limiting holes are provided at the front and rear ends of the left side of the interior of the movable plate 3, and the outer side of the limit rod 604 is slidably connected to the inner side of the limiting hole. Therefore, when the movable plate 3 is located inside the rectangular frame 2 and moves, it can only move along the outer side of the limit rod 604, thereby limiting the movement of the movable plate 3.

[0030] A second threaded hole is provided in the center of the left side of the movable plate 3. The lower outer side of the second threaded rod 602 is fixedly connected to the inner side of the second bearing 603. The outer side of the second threaded rod 602 is threadedly connected to the inner side of the second threaded hole. Therefore, when the motor 601 is started and its output shaft rotates, the second threaded rod 602 rotates, which drives the movable plate 3 outside the second threaded rod 602 to slide along the inner side of the rectangular frame 2, thereby driving the pressing wheel 508 below the movable plate 3 to move together, so that the height of the pressing wheel 508 can be adjusted according to the needs of different soil types when sowing. Example

[0031] On the basis of the first embodiment: mounting holes are provided at the four corners of the mounting plate 1. Thus, the pressing wheel 508 can be installed by passing bolts through the mounting holes and then threading them onto the planter.

[0032] Working principle: Before using the pressing wheel 508, first turn the handle 504 to drive the first threaded rod 503 in the first threaded hole to rotate, drive the adjustment plate 506 to move, and at the same time, the rotating plate 507 in the through groove rotates, driving the pressing wheel 508 to rotate to the required angle, then start the motor 601 and its output shaft rotates to drive the second threaded rod 602 to rotate, driving the movable plate 3 outside the second threaded rod 602 to slide along the inner side of the rectangular frame 2, until the pressing wheel 508 under the movable plate 3 moves to the required working height, then turn off the motor 601, and start the seeder to work.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A height adjustment device for a seed drill press wheel, comprising a mounting plate (1) and a rectangular frame (2), wherein the rectangular frame (2) is fixedly connected to the right side of the mounting plate (1), and is characterized in that: A movable plate (3) is slidably connected to the inner side of the rectangular frame (2); a round rod (4) is fixedly connected to the lower right side of the movable plate (3); an adjustment mechanism is connected to the inner and outer ends of the rectangular frame (2) and the lower end of the round rod (4); the adjustment mechanism comprises an angle adjustment unit and a height adjustment unit; the angle adjustment unit is arranged at the lower end of the round rod (4); and the height adjustment unit is arranged at the inner and outer ends of the rectangular frame (2); The angle adjustment unit comprises a top plate (501), a side plate (502), a first threaded rod (503), a handle (504), a first bearing (505), an adjustment plate (506), a rotating plate (507) and a pressing wheel (508), wherein the top plate (501) is fixedly connected to the lower end of the round rod (4), the side plate (502) is fixedly connected to the front and rear ends of the lower side of the top plate (501), the first threaded rod (503) is connected to the middle position inside the top plate (501), the handle (504) is fixedly connected to the upper end of the first threaded rod (503), the first bearing (505) is fixedly connected to the outer side of the lower end of the first threaded rod (503), the adjustment plate (506) is fixedly connected to the outer side of the first bearing (505), the rotating plate (507) is hinged to the left and right ends of the adjustment plate (506), and the pressing wheel (508) is rotatably connected to one end of the rotating plate (507) away from the adjustment plate (506).

2. The height adjustment device for the press wheel of a seeder according to claim 1, characterized in that: A first threaded hole is provided in the middle of the top plate (501), and the outer side of the first threaded rod (503) is threadedly connected to the inner side of the first threaded hole.

3. The height adjustment device for the press wheel of a seed drill according to claim 1, characterized in that: A through slot is provided at the lower end of the inner part of the side plate (502), and the outer side of the rotating plate (507) is slidably connected to the inner side of the through slot.

4. The height adjustment device for the press wheel of a seeder according to claim 1, characterized in that: The height adjustment unit comprises a motor (601), a second threaded rod (602), a second bearing (603) and a limit rod (604); the motor (601) is fixedly connected to the middle position of the upper side of the rectangular frame (2); the second threaded rod (602) is fixedly connected to the lower end of the output shaft of the motor (601); the second bearing (603) is fixedly connected to the middle position of the inner bottom end of the rectangular frame (2); and the limit rod (604) is vertically fixedly connected to the front and rear ends of the inner side of the rectangular frame (2).

5. The height adjustment device for the press wheel of a seeder according to claim 4, characterized in that: Limiting holes are provided at the front and rear ends of the left interior of the movable plate (3), and the outer side of the limiting rod (604) is slidably connected to the inner side of the limiting hole.

6. The height adjustment device for the press wheel of a seeder according to claim 4, characterized in that: A second threaded hole is provided in the middle of the left side of the movable plate (3); the outer side of the lower end of the second threaded rod (602) is fixedly connected to the inner side of the second bearing (603); and the outer side of the second threaded rod (602) is threadedly connected to the inner side of the second threaded hole.

7. The height adjustment device for the press wheel of a seeder according to claim 1, characterized in that: The four corners of the mounting plate (1) are provided with mounting holes.

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