Multi-row sowing row spacing synchronous automatic adjustment mechanism

Abstract

The invention discloses a synchronous automatic adjustment mechanism for row spacing of multiple rows of sowing, which belongs to agricultural machinery; a seat plate is fixed on the rear side of a fixed connecting frame, a stepper motor with a driving wheel is installed on the upper left end of the seat plate, a lead screw of a fixed follower wheel is installed on the left end of the seat plate, a transmission belt is sleeved on the driving wheel and the follower wheel, a horizontal transverse slide is installed on the rear side of the seat plate, and vertical slides are respectively installed on the left and right sides of the seat plate and at the outer parts of the left and right ends of the horizontal transverse slide, N single frames with fixed row spacing adjustment sliders are installed on the horizontal transverse slide, a combined seed metering device single body is installed on the single frame, a lifting plate is installed on the vertical slide, a row spacing adjustment slider is inserted into a strip row spacing adjustment groove on the lifting plate, a nut is sleeved on the lead screw, and the nut is fixedly connected to the lifting plate; this mechanism realizes stepless synchronous and unified adjustment of row spacing of multiple rows of sowing machines, has strong applicability, high adjustment accuracy, and simple, convenient and fast adjustment operation.

Description

Technical Field

[0001] The invention belongs to agricultural machinery, and mainly relates to a row spacing adjustment mechanism which can be equipped on a multi-row seeding machine. Background Art

[0002] In recent years, with the development of intensive agricultural production in my country, the scale of farms has been expanding and the area of ​​single land has increased. In order to adapt to and meet the needs of large-scale mechanized farming operations and improve operating efficiency, various large-scale agricultural machines have been continuously developed and successfully promoted and applied in agricultural production practices, including various large-scale multi-row sowing machines. On the existing large-scale multi-row sowing machines, multiple combined seeding devices are installed on the sowing machine frame in a single independent and separate manner. The row spacing of the multi-row sowing machine with the above-mentioned installation structure cannot be changed or adjusted. It can only adapt to and meet the use of a multi-row synchronous sowing operation with a certain row spacing. The use performance is single, the use efficiency is low, and the adaptability is poor. Therefore, it is very necessary to develop a multi-row sowing machine that adapts to and meets the use of multi-row sowing with different row spacings. Summary of the invention

[0003] The purpose of the present invention is to address the problems existing in the above-mentioned prior art, combine with the current requirements for the use of multi-row sowing operations with different row spacings, and study and design a multi-row sowing row spacing synchronous automatic adjustment mechanism to achieve the goals of high degree of commonality, strong adaptability, wide range of applications, simple, convenient and fast adjustment operation, and high spacing adjustment accuracy.

[0004] The purpose of the invention is achieved as follows: a seat plate is vertically fixed on the rear side of the fixed connecting frame, a stepper motor is installed on the upper left end of the seat plate, a driving wheel is fixed on the motor shaft of the stepper motor, a lead screw of a fixed follower wheel is rotatably installed on the left end of the seat plate, a transmission belt is sleeved on the driving wheel and the follower wheel, horizontal transverse slideways are installed parallel to each other on the rear side of the seat plate, vertical slideways are respectively installed parallel to each other on the left and right sides of the seat plate and at the outer sides of the left and right ends of the horizontal transverse slideways, and N single frames on which row spacing regulating sliders are respectively fixed can be It is mounted on a horizontal transverse slideway for horizontal transverse movement, N combined seed metering device units are respectively mounted on N unit frames in turn, a lifting plate is mounted on the vertical slideway for upward and downward movement, N strip-shaped row spacing regulating grooves are provided on the lifting plate with gradually increasing outward angles from the middle to both sides and symmetrically, the row spacing regulating sliders on the N unit frames are movably inserted into the corresponding strip-shaped row spacing regulating grooves in turn, a nut is mounted on the lead screw for upward and downward movement, and the nut is fixedly connected to the lifting plate, thereby constituting a synchronous automatic adjustment mechanism for multi-row sowing row spacing.

[0005] The invention realizes stepless synchronous unified adjustment of multi-row row spacing of multi-row seeding machines in seeding operations, and has the characteristics of unique, novel and reasonable structure, strong adaptability, high adjustment accuracy, simple, convenient and fast adjustment operation, and expands the use scope of multi-row seeding machines and improves utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the overall structure of a synchronous automatic adjustment mechanism for multi-row sowing row spacing;

[0007] Figure 2 yes Figure 1 Right view of

[0008] Figure 3 It is a three-dimensional schematic diagram of the overall structure of a multi-row sowing row spacing synchronous automatic adjustment mechanism.

[0009] Description of part numbers in the figure:

[0010] 1. Fixed connecting frame, 2. Base plate, 3. Horizontal transverse slide, 4. Single frame, 5. Vertical slide, 6. Row spacing control slider, 7. Lifting plate, 8. Combined seed metering device single body, 9. Strip row spacing control groove, 10. Nut, 11. Lead screw, 12. Transmission belt, 13. Driving wheel, 14. Follower wheel, 15. Stepping motor. DETAILED DESCRIPTION

[0011] The following is a detailed description of the implementation scheme of the invention in conjunction with the accompanying drawings. A synchronous automatic adjustment mechanism for multi-row sowing row spacing includes a combined seeding device unit 8 consisting of a seed box, a seeding device, a seed guide tube, and a furrow opener. A seat plate 2 is vertically fixed on the rear side of a fixed connecting frame 1, a stepper motor 15 is installed on the upper left end of the seat plate 2, a driving wheel 13 is fixed on the motor shaft of the stepper motor 15, a lead screw 11 fixed with a follower wheel 14 is rotatably installed on the left end of the seat plate 2, a transmission belt 12 is sleeved on the driving wheel 13 and the follower wheel 14, and horizontal transverse slideways 3 are installed parallel to each other on the rear side of the seat plate 2, and on the left and right parts of the seat plate 2, and at the outer parts of the left and right ends of the horizontal transverse slideways 3, the horizontal transverse slideways 3 are parallel to each other. A vertical slide 5 is mounted on the ground, and N single frames 4 with row spacing regulating sliders 6 respectively fixed thereon can be mounted on the horizontal transverse slide 3 by being clamped and moved horizontally. N combined seed metering device single bodies 8 are respectively mounted on the N single frames 4 in turn. A lifting plate 7 is mounted on the vertical slide 5 by being clamped and moved up and down. N strip-shaped row spacing regulating grooves 9 are symmetrically provided on the lifting plate 7 with gradually increasing outward angles from the middle to both sides. The row spacing regulating sliders 6 on the N single frames 4 are movably inserted into the corresponding strip-shaped row spacing regulating grooves 9 in turn. A nut 10 is mounted on the lead screw 11 which can be moved up and down, and the nut 10 is fixedly connected to the lifting plate 7.

[0012] When in operation, the mechanism is installed as a whole on the frame of the sowing machine by using the fixed connection frame 1 and moves forward, and the N combined seed metering device monomers 8 complete the sowing operation respectively. When the spacing between adjacent N combined seed metering device monomers 8, i.e., the sowing row spacing, is required, the stepper motor 15 is started to rotate forward or reverse, and the rotational movement of the stepper motor 15 drives the lead screw 11 to rotate forward or reverse through the driving wheel 13, the transmission belt 12, and the driven wheel 14 in turn, and the rotating lead screw 11 drives the lifting plate 7 to move upward or downward along the vertical vertical slide 5 on the seat plate 2 by the nut 10, and under the coordinated control of the N strip-shaped row spacing regulating grooves 9, the corresponding monomer frame 4 is driven to move inward or outward along the horizontal transverse slide 3 on the seat plate 2 through the row spacing regulating slider 6: when the lifting plate 7 moves upward, each monomer frame 4 drives the corresponding combined seed metering device monomer 8 to move inward synchronously, and the sowing row spacing becomes smaller; when the lifting plate 7 moves downward, each monomer frame 4 drives the corresponding combined seed metering device monomer 8 to move outward synchronously, and the sowing row spacing becomes larger, completing the synchronous equal spacing adjustment operation of multi-row sowing row spacing.

Claims

1. A synchronous automatic adjustment mechanism for multi-row sowing row spacing, comprising a combined seeding device monomer (8) consisting of a seed box, a seeding device, a seed guide tube, and a furrow opener, characterized in that: A seat plate (2) is fixedly mounted on the rear side of the fixed connection frame (1), a stepper motor (15) is mounted on the upper left end of the seat plate (2), a driving wheel (13) is fixedly mounted on the motor shaft of the stepper motor (15), a lead screw (11) of a fixed follower wheel (14) is rotatably mounted on the left end of the seat plate (2), a transmission belt (12) is sleeved on the driving wheel (13) and the follower wheel (14), a horizontal transverse slideway (3) is mounted parallel to each other on the rear side of the seat plate (2), vertical slideways (5) are respectively mounted parallel to each other on the left and right sides of the seat plate (2) and at the outer sides of the left and right ends of the horizontal transverse slideway (3), and a row spacing regulating slider ( N single frames (4) of the invention are mounted on a horizontal horizontal slideway (3) in a horizontally movably manner, and N combined seed metering device single bodies (8) are respectively mounted on the N single frames (4) in sequence. A lifting plate (7) is mounted on the vertical slideway (5) in a vertically movably manner. N strip-shaped row spacing regulating grooves (9) are provided on the lifting plate (7) in a symmetrical manner with gradually increasing outward angles from the middle to both sides. The row spacing regulating sliders (6) on the N single frames (4) are movably inserted into the corresponding strip-shaped row spacing regulating grooves (9) in sequence. A screw nut (10) is mounted on the lead screw (11) in a vertically movably manner. The screw nut (10) is fixedly connected to the lifting plate (7).

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