A vibrating type covering device

Abstract

The application relates to a vibrating soil covering device, belonging to the technical field of agricultural machinery, which comprises a vibrating device, a state recovery device, an adjusting device and a soil covering disc, the vibrating device comprises a motor, a motor base and an eccentric wheel, the motor is fixed on the motor base; the state recovery device comprises a spring, a circular plate, a first connecting rod, an end cover, a bearing, a rectangular plate, a second connecting rod and a shaft; the adjusting device comprises an adjusting rod, an adjusting sleeve, a third locking bolt and a fourth locking bolt. The vibrating device provides external excitation consistent with the vibration frequency of the soil covering disc, so that the soil covering disc generates rapid vibration, the state recovery device absorbs vibration energy, the vibration rapidly disappears, and returns to the original state, thereby bringing great inertia, so that the soil on the soil covering disc rapidly falls, the soil covering disc is kept clean, and the problem that the soil on the film is not uniformly covered due to easy soil sticking during operation in the cohesive soil is solved.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically to a soil covering device with a high-frequency vibration stripping structure. Background Technology

[0002] In 2022, China's potato production was 18.516 million tons, corn production was 277 million tons, and soybean production was 91 million tons. These crops require mulch film during planting to reduce rainwater erosion, decrease soil moisture evaporation, maintain suitable temperatures for crop growth, accelerate fertilizer decomposition, and improve soil fertility. Covering pans are used to ensure better coverage and prevent the mulch film from being blown away.

[0003] The soil in hilly areas is mostly clay soil, which easily adheres to the cover plate, resulting in uneven soil coverage on the film and making it difficult to utilize the cover plate for continuous operation.

[0004] The existing soil covering device patent number: CN217445801U, "A Soil Covering Machine for Agricultural Sowing," utilizes an inclined mounting base and soil covering disc to cover two sets of soil piles after ridging during movement. It allows for more convenient and faster soil covering during agricultural machinery pulling, and the connecting mechanism allows for adjustment of the hole positions, thus adapting to different agricultural machinery. However, it is prone to soil adhesion in clay soils, resulting in uneven soil coverage on the film. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a vibrating soil covering device with a soil covering disc having a resonant frequency, which can efficiently peel off the soil adhering to the soil covering disc, so as to solve the problem in the prior art that cohesive soil is easy to adhere to the soil covering disc and is not easy to fall off.

[0006] This invention is achieved through the following technical solution:

[0007] A vibratory soil covering device includes a vibration device, a state recovery device, an adjustment device, and a soil covering disc.

[0008] The vibration device includes a motor, a motor base, and an eccentric wheel. The motor is fixed on the motor base, and the eccentric wheel is sleeved on the motor main shaft.

[0009] The state recovery device includes a spring, a circular plate, a first connecting rod, an end cap, a bearing, a rectangular plate, a second connecting rod, and a shaft. Both the first and second connecting rods are provided with bearing holes, and the bearings are fitted into the bearing holes. The first connecting rod is fixed to the circular plate, and the second connecting rod is fixed to the rectangular plate. The first and second connecting rods are fitted onto both ends of the shaft, and the spring is disposed between the circular plate and the rectangular plate.

[0010] The adjustment device includes an adjustment rod, an adjustment sleeve, a third locking bolt, and a fourth locking bolt. One end of the adjustment rod is connected to the rectangular plate via a second anti-loosening bolt, and the other end is connected to the adjustment sleeve via a third locking bolt. One end of the adjustment sleeve is fitted into the adjustment rod, and the other end is connected to the operating machinery. The adjustment sleeve adjusts the height and angle of the soil covering plate by changing its position on the adjustment rod.

[0011] The adjusting rod is connected to the rectangular plate by a connecting seat, and the motor base is detachably mounted on the connecting seat;

[0012] The eccentric wheel, driven by the motor, can act on the soil covering plate.

[0013] Furthermore, the rotational frequency of the motor is consistent with the resonant frequency of the soil covering disc.

[0014] Furthermore, the rotational frequency of the motor is 99.82Hz, 104.13Hz, or 133.03Hz.

[0015] Furthermore, one end of the spring is connected to a circular plate and the other end is connected to a rectangular plate. The soil-covering disc vibrates under the impact of the eccentric wheel and returns to its original shape through the spring.

[0016] Furthermore, the eccentric wheel has a base circle of 29mm, an eccentricity of 13.5mm, a far repose angle and a near repose angle of 0 degrees, a maximum thrust distance of 27mm, and the eccentric wheel strikes the soil-covering disc in an instantaneous line contact.

[0017] Furthermore, the eccentric wheel is radially provided with a first locking bolt for fixing the eccentric wheel to the motor.

[0018] Furthermore, both ends of the shaft are provided with end caps that are locked and fixed by second locking bolts, and each end cap is provided with a retaining ring.

[0019] The beneficial effects of this invention are as follows:

[0020] This invention provides external excitation with a vibration device that matches the vibration frequency of the cover plate, causing the cover plate to resonate and form a relatively large amplitude. This causes the soil adhering to the cover plate to vibrate significantly. Simultaneously, a state recovery device absorbs the vibration energy, causing the vibration to disappear quickly and return to its original state, allowing the soil on the cover plate to quickly come to rest, thus generating great inertia. This process is repeated, and under the action of large amplitude and great inertia, the soil on the cover plate will fall off on its own, thereby keeping the cover plate clean. This solves the problem of uneven soil coverage on the membrane caused by soil sticking when working in cohesive soil. Attached Figure Description

[0021] Figure 1 This is a three-dimensional view of a vibratory soil covering device according to the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of a vibrating soil covering device according to the present invention;

[0023] Figure 3 This is a cross-sectional view of the rotating mechanism of the state recovery device of the vibratory soil covering device described in this utility model.

[0024] Figure 4 This is a front view of a vibratory soil covering device according to the present invention.

[0025] Figure 5 This is a rear view of a vibratory soil covering device according to the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Vibration device; 2. State recovery device; 3. Adjustment device; 4. Soil covering plate; 5. First anti-loosening bolt; 6. Second anti-loosening bolt; 101. First locking bolt; 102. Motor; 103. Motor base; 104. Eccentric wheel; 201. Spring; 202. Circular plate; 203. First connecting rod; 204. End cap; 205. Second locking bolt; 206. Bearing; 207. Rectangular plate; 208. Second connecting rod; 209. Retaining ring; 210. Shaft; 301. Adjusting rod; 302. Adjusting sleeve; 303. Third locking bolt; 304. Fourth locking bolt; 305. Connecting seat. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the above description of the present invention, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0033] like Figures 1 to 5 As shown, a vibratory soil covering device according to this embodiment includes a vibration device 1, a state recovery device 2, an adjustment device 3, and a soil covering plate 4, wherein:

[0034] The adjustment device includes an adjustment rod 301 and an adjustment sleeve 302. One end of the adjustment sleeve is connected to the working machinery, and the other end is connected to the adjustment rod 301. The adjustment sleeve 302 can adjust the height and angle of the soil covering plate 4 by changing its position on the adjustment rod 301.

[0035] The vibration device includes a motor 102, a motor base 103, and an eccentric wheel 104. The motor 102 is fixed on the motor base 103, and the eccentric wheel 104 is fitted onto the motor main shaft. When the motor outputs rotational torque, the eccentric wheel 104 rotates accordingly and can act on the soil covering plate 4, causing the sticky mud on the soil covering plate to fall off.

[0036] The state restoration device includes a circular plate 202, a first connecting rod 203, an end cap 204, a second locking bolt 205, a bearing 206, a rectangular plate 207, a second connecting rod 208, a retaining ring 209, and a shaft 210. The bearing 206 is embedded in the first connecting rod 203 and the second connecting rod 208. The first connecting rod 203 and the second connecting rod 208 are welded and fixed to the circular plate 202 and the rectangular plate 207, respectively. The first connecting rod 203 and the second connecting rod 208 are sleeved on the shaft 210, thereby realizing a rotational connection with the shaft, equivalent to a hinge connection, so that the first connecting rod and the second connecting rod can rotate relative to each other. At the same time, threaded holes are opened at both ends of the shaft. The retaining ring 209 and the end cap 204 respectively play an axial limiting and fixing role for both ends of the bearing 206, and the end cap 204 is locked with the second locking bolt 205.

[0037] In this embodiment, the adjusting rod 301 is connected to the rectangular plate 207 by a connecting seat 305. The motor base 103 is detached and mounted on the connecting seat 305, thereby forming a connection and fixation for the adjusting device. Of course, to facilitate position adjustment, the fixing hole on the connecting seat is a strip hole, which facilitates the position adjustment of the motor base and achieves a better point of action.

[0038] When this utility model is working, the motor speed is adjusted to the speed corresponding to the resonant frequency of the soil covering plate through PWM control. The motor 102 drives the eccentric wheel 104 to rotate. When the eccentric wheel 103 reaches its maximum stroke in the horizontal direction, it strikes the soil covering plate 4. At this time, the first connecting rod 203 and the second connecting rod 208 rotate relative to each other and tend to move away from each other. At this time, the spring 201 generates tensile stress between itself and the soil covering plate and quickly returns to its original state, thus bringing great inertia. This process is repeated. Under the action of large amplitude and great inertia, the soil on the soil covering plate will fall off by itself.

[0039] Furthermore, through experiments, the first three resonant frequencies of the covering disc 4 were found to be 99.82Hz, 104.13Hz, and 133.03Hz, respectively. These correspond to speed adjustments of the PWM-controlled motor 102 of 5989r / min, 6248r / min, and 7981r / min. This makes the excitation effect on the covering disc more significant, generates a larger amplitude on the covering disc, facilitates the shaking off of clay from the covering disc, avoids unevenness of the covering disc, and ensures the continuous operation of the covering disc.

[0040] Specifically, in this embodiment, the base circle diameter of the eccentric wheel 104 is 29mm, the eccentricity is 13.5mm, the far repose angle and the near repose angle are both 0 degrees, the maximum thrust distance is 27mm, and the eccentric wheel 104 strikes the soil covering plate 4 with instantaneous line contact. Its action time is short, which helps to shorten the recovery time, increase the alternation frequency of the two actions, shorten the soil vibration cycle, and make the soil on the soil covering plate stay for a short time, resulting in a more obvious soil covering effect.

[0041] Furthermore, a first locking bolt 101 is radially provided on the eccentric wheel. The first locking bolt 101 is used to fix the eccentric wheel to the motor to prevent loosening. Figure 4 As shown.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A vibratory soil covering device, characterized in that: Includes a vibration device, a condition recovery device, an adjustment device, and a backfill plate. The vibration device includes a motor, a motor base, and an eccentric wheel. The motor is fixed on the motor base, and the eccentric wheel is sleeved on the motor main shaft. The state recovery device includes a spring, a circular plate, a first connecting rod, an end cap, a bearing, a rectangular plate, a second connecting rod, and a shaft. Both the first and second connecting rods are provided with bearing holes, and the bearings are fitted into the bearing holes. The first connecting rod is fixed to the circular plate, and the second connecting rod is fixed to the rectangular plate. The first and second connecting rods are fitted onto both ends of the shaft, and the spring is disposed between the circular plate and the rectangular plate. The adjustment device includes an adjustment rod, an adjustment sleeve, a third locking bolt, and a fourth locking bolt. One end of the adjustment rod is connected to the rectangular plate via a second anti-loosening bolt, and the other end is connected to the adjustment sleeve via a third locking bolt. One end of the adjustment sleeve is fitted into the adjustment rod, and the other end is connected to the operating machinery. The adjustment sleeve adjusts the height and angle of the soil covering plate by changing its position on the adjustment rod. The adjusting rod is connected to the rectangular plate by a connecting seat, and the motor base is detachably mounted on the connecting seat; Driven by a motor, the eccentric wheel acts on the soil-covering disc, and the rotational frequency of the motor is consistent with the resonant frequency of the soil-covering disc. The motor's rotational frequency is 99.82Hz, 104.13Hz, or 133.03Hz. One end of the spring is connected to a circular plate, and the other end is connected to a rectangular plate. The soil covering disc vibrates under the impact of the eccentric wheel and returns to its original shape through the spring.

2. The vibratory soil covering device according to claim 1, characterized in that: The eccentric wheel has a base circle diameter of 29mm, an eccentricity of 13.5mm, a far repose angle and a near repose angle of 0 degrees, a maximum thrust distance of 27mm, and the eccentric wheel strikes the soil-covering disc in an instantaneous line contact.

3. The vibratory soil covering device according to claim 1, characterized in that: The eccentric wheel is radially provided with a first locking bolt for fixing the eccentric wheel to the motor.

4. The vibratory soil covering device according to claim 1, characterized in that: Both ends of the shaft are provided with end caps that are locked and fixed by second locking bolts, and each end cap is provided with a retaining ring.

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