Seeding depth automatic regulating mechanism
阅读说明:本技术 一种播种深度自动调节机构 (Seeding depth automatic regulating mechanism ) 是由 杨丽 刘江 张东兴 崔涛 杜一童 于 2019-12-23 设计创作,主要内容包括:本发明属于农业机械领域,特别涉及一种播种深度自动调节机构。包括调节器1、限深轮拐臂2、限深轮转轴3、限深轮4、双圆盘开沟器5、机架6和机架立板7,所述双圆盘开沟器5通过机架立板7对称安装在机架6上,两个限深轮4分别与双圆盘开沟器5贴合,限深轮4安装在限深轮拐臂2一端,限深轮拐臂2另一端与限深轮转轴3铰接,限深轮转轴3安装在机架6上。本发明准确度高,响应速度迅速,能满足实时改变播种深度的要求;清洁方便,尺寸合理,便于控制;合理地利用了播种机机架的余留空间,整体结构更加紧凑;调节器零件主要采用键、螺栓、螺钉等进行连接,拆卸方便,重复组装性高,提高了拆装效率和安全性。(The invention belongs to the field of agricultural machinery, and particularly relates to an automatic sowing depth adjusting mechanism. Including regulator 1, depth wheel turning arm 2, depth wheel pivot 3, depth wheel 4, two disc furrow openers 5, frame 6 and frame riser 7, two disc furrow openers 5 pass through frame riser 7 symmetry and install in frame 6, and two depth wheels 4 laminate with two disc furrow openers 5 respectively, and depth wheel 4 is installed in 2 one ends of depth wheel turning arm, and the 2 other ends of depth wheel turning arm are articulated with depth wheel pivot 3, and depth wheel pivot 3 is installed in frame 6. The invention has high accuracy and quick response speed, and can meet the requirement of changing the seeding depth in real time; the cleaning is convenient, the size is reasonable, and the control is convenient; the remaining space of the seeder frame is reasonably utilized, and the whole structure is more compact; the regulator parts are mainly connected by keys, bolts, screws and the like, so that the regulator is convenient to disassemble and high in repeated assembling performance, and the disassembling efficiency and the safety are improved.)
1. An automatic sowing depth adjusting mechanism is characterized by comprising an adjuster (1), a depth wheel connecting lever (2), a depth wheel rotating shaft (3), a depth wheel (4), a double-disc furrow opener (5), a frame (6) and a frame vertical plate (7),
the double-disc furrow opener (5) is symmetrically installed on a rack (6) through a rack vertical plate (7), two depth wheels (4) are respectively attached to the double-disc furrow opener (5), the depth wheels (4) are installed at one ends of depth wheel turning arms (2), the other ends of the depth wheel turning arms (2) are hinged to depth wheel rotating shafts (3), and the depth wheel rotating shafts (3) are installed on the rack (6).
2. The automatic sowing depth adjusting mechanism according to claim 1, wherein the adjuster (1) comprises a worm wheel (101), a connecting rod (102), a worm wheel shaft (103), a gear (104), an adjuster short tube (106), an adjuster U-shaped plate (107), an adjuster rotating shaft (108), a stopper (109), a limiting rubber block (110), a fixing frame (111), an arc-shaped gear ring (112), a worm bearing (113), a gear housing (114), a housing (115), a motor (116), a worm (117), a motor housing (119), a sleeve (120), a lining (121) and a worm wheel shaft bearing (122).
3. The sowing depth automatic adjusting mechanism according to claim 2, wherein the frame (6) is designed into a circular arc shape in the adjusting area, an adjuster rotating shaft (108) is installed at the center of the circular arc, the adjuster rotating shaft (108) is connected with an adjuster U-shaped plate (107) and a stop block (109) at a certain angle, and an adjuster short pipe (106) is connected in the adjuster U-shaped plate (107).
4. The automatic sowing depth adjusting mechanism according to claim 2, wherein the motor (116) is connected with a worm (117), worm bearings (113) are symmetrically arranged at two ends of the worm (117), and the outer rings of the worm bearings (113) are attached to the outer shell (115); the worm (117) is engaged with the worm wheel (101), and the worm wheel (101) is mounted on the worm wheel shaft (103) through a key and is concentric with the housing (115).
5. The automatic sowing depth adjusting mechanism according to claim 2, wherein the gear (104), the sleeve (120), the worm gear shaft bearing (122) and the lining (121) are respectively and symmetrically installed on the worm gear shaft (103) from two sides to the middle in sequence, the outer walls of the sleeve (120) and the lining (121) and the outer ring of the worm gear shaft bearing (122) are attached to the inner wall of the boss of the shell (115), and the gear (104) is connected with the worm gear shaft (103) through a spline and meshed with the arc-shaped gear ring (112).
6. The sowing depth automatic adjusting mechanism according to claim 2, wherein the fixed frame (111) is symmetrically arranged on the machine frame (6) through bolts and nuts, the arc-shaped gear ring (112) is connected with the fixed frame (111) through uniformly distributed cross screws (105), and the center of the arc-shaped gear ring is positioned at the center of the arc-shaped part of the machine frame (6); the two limiting rubber blocks (110) are connected through bolts and nuts and are respectively arranged at the two ends of the arc of the fixed frame (111).
7. The sowing depth automatic adjusting mechanism according to claim 2, wherein the motor housing (119) is fixed on the housing (115), two symmetrical housings (115) are spliced together by bolts and nuts to cover the worm wheel (101) and the worm (117), bosses of the two symmetrical housings (115) are connected with two symmetrical connecting rods (102) by hexagon socket head cap screws (118) with uniform periphery and are connected with the gear housing (114), and rod-shaped parts of the two connecting rods (102) are spliced into a cylinder to be inserted into the adjuster short pipe (106).
Technical Field
The invention belongs to the field of agricultural machinery, and particularly relates to an automatic sowing depth adjusting mechanism.
Background
Precision agriculture is an important trend of agricultural development, and precision seeding is an important link of precision agriculture. Soil properties in different areas of the same land can be different, the sowing depth can be adjusted according to the soil properties, so that the seeds can be guaranteed to fall in a proper soil environment, moisture, nutrients and the like of the soil are fully utilized, the germination rate and the seedling emergence consistency of the seeds are improved, and the requirement of accurate sowing is met. Most of the seeding machines in the market at present adopt a passive seeding depth adjusting mode combining integral profiling and monomer profiling, such as adjusting springs, parallel four-bar linkages or manually adjusting profiling parts and the like to ensure the consistency of the ditching depth of the seeding machines, and can not realize real-time automatic seeding depth adjustment. In recent years, an active control mode adopting an electro-hydraulic control technology appears, but the main purpose of the technology is to ensure the consistency of the broadcasting depth, and the problems of complex installation, complex control and the like exist.
The research of the foreign countries on the real-time sowing depth control is relatively mature, the sowing single bodies are ensured to be attached to the ground by adjusting an air bag, hydraulic pressure and the like, the technology is effective in ensuring the sowing depth consistency, and the accuracy and the response speed of the technology for adjusting the sowing depth according to the soil property have defects. Most of domestic seeders adopt a copying mechanism to keep the stability of the seeding depth, the precision and the rapidity cannot meet the requirement of precise seeding, and the domestic electro-hydraulic control seeding depth technology is relatively immature and is not popularized in a large range.
The invention aims to provide an automatic sowing depth adjusting mechanism which can automatically adjust the sowing and ditching depth in real time according to the soil property under the condition of collecting the soil property, ensure that seeds fall in a soil environment suitable for germination, fully utilize water and nutrients in the soil and improve the germination rate and the teething consistency of the seeds. The method is characterized in that: the laminating of gauge wheel is in two disc furrow openers both sides, and through gauge wheel turning arm articulated gauge wheel pivot and seeder frame link to each other, the profile modeling is carried out on laminating ground, through regulator adjustment gauge wheel position, changes the difference in height of gauge wheel and two disc furrow openers, and then realizes the regulation of seeding ditching degree of depth. The regulator is driven by a motor, and compared with hydraulic pressure, the regulator is simple to control, convenient to clean and light in weight. The regulator adopts worm and gear transmission, has good self-locking performance, can ensure that the stop block of the regulator well props against the crank arm of the depth wheel, and ensures the stability of the current sowing depth; meanwhile, the worm and gear are driven by a large transmission ratio, so that torque can be effectively increased and speed can be reduced. The gear in the regulator is connected with the worm wheel shaft by a spline, the connection is tight, and the transmission stress is uniform; the gear and the arc-shaped gear ring adopt a large transmission ratio, so that the transmission torque is effectively increased; the arc-shaped gear ring is fixed on the fixing frame through evenly distributed screws, and the fixing frame is fixed on the rack through bolts and nuts, so that the installation is stable, and the disassembly is convenient. The seeding depth regulator takes a worm gear as a center, and the shell, the gear, the arc-shaped gear ring and the connecting rod are symmetrically arranged, so that the stress is symmetrically distributed uniformly, and the force born by the rack is reduced.
Disclosure of Invention
In order to overcome a series of defects in the prior art, the invention aims to provide an automatic sowing depth adjusting mechanism to solve the problems in the background technology.
The invention relates to an automatic sowing depth adjusting mechanism, which comprises an adjuster 1, a depth
the double-
preferably, the adjuster 1 includes a
Preferably, the
Preferably, the
Preferably, the
Preferably, the
Preferably, the bolt nuts are assembled together to cover the
The automatic sowing depth adjusting mechanism has the following beneficial effects:
1. the accuracy is high, and response speed is rapid, can satisfy the requirement that changes the seeding degree of depth in real time, is favorable to realizing accurate seeding.
2. The regulator adopts the motor as the driving source, and is clean convenient, and the size is reasonable, the control of being convenient for.
3. The regulator adopts the worm gear transmission, has not only increased transmission torque to a great extent, and the dog withstands the depth wheel turning arm, maintains current seeding depth's stability to worm gear's auto-lock performance.
4. The meshing of gear and arc ring gear makes the worm-gear shaft become the planet axle, and the transmission is steady, has improved driven accuracy, makes the final seeding degree of depth of adjusting more accurate, and simultaneously, the gear has played the effect that increases the square speed reduction with the big gear ratio of arc ring gear.
5. The symmetrical parts are distributed by taking the worm and gear as the center, so that the regulator is stressed uniformly, the remaining space of the frame of the seeder is reasonably utilized, and the whole structure is more compact.
6. The worm and gear and the gear ring are in two-stage transmission, so that the reduction ratio is greatly increased, the torque is amplified, and the torque required by the corresponding distance when the depth wheel is pressed down or lifted up can be met by using a small motor.
7. The regulator parts are mainly connected by keys, bolts, screws and the like, so that the regulator is convenient to disassemble and high in repeated assembling performance, and the disassembling efficiency and the safety are improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the sowing depth automatic adjusting mechanism of the present invention
FIG. 2 is a schematic view of the structure of the regulator of the automatic sowing depth adjusting mechanism of the present invention
FIG. 3 is a schematic sectional view of an adjuster of the automatic sowing depth adjusting mechanism according to the present invention
The reference numbers in the figures are:
1 adjuster, 101 worm wheel, 102 connecting rod, 103 worm wheel shaft, 104 gear, 105 cross screw, 106 adjuster
2 depth wheel crank arm
3 depth wheel rotating shaft
4 depth wheel
5 double-disc furrow opener
6 machine frame
7 vertical plate of machine frame
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments and the directional terms described below with reference to the drawings are exemplary and intended to be used in the explanation of the invention, and should not be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In one broad embodiment of the invention, as shown in fig. 1, an automatic sowing depth adjusting mechanism comprises an adjuster 1, a depth
Fig. 2 and 3 show the regulator 1 of the present invention, and fig. 2 is a view showing a gear housing, a housing, and a motor housing with one side removed, and the regulator 1 includes a
The double-
The position of the depth
When the sowing depth needs to be deepened, the regulator 1 drives the
The inside of two
The rod-shaped parts of the two connecting
The fixing
The
The rotation of
The
The
The limiting
The
The
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
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