CN209930893U

CN209930893U - Opposed belt type accurate seed throwing device

Info

Publication number: CN209930893U
Application number: CN201920786669.6U
Authority: CN
Inventors: 陈玉龙; 张隆梅; 兰玉彬; 李建勇; 王兵; 张彦斐; 耿端阳; 刘瑞军; 张华强
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-01-14
Anticipated expiration: 2029-05-28

Abstract

The utility model discloses an accurate kind device of throwing of opposition belt, include the seed metering pipe of constituteing by U shell and apron, set up two conveyer in the seed metering intraduct side by side, locate the conveying board of seed metering pipe lower extreme. The utility model belongs to the field of agricultural machinery. The seed movement is guided by a tubular seed conveying pipe in the seeding machine, but the movement of the seeds in the seed conveying pipe has certain randomness, so that the consistency of the grain distance of the seeds in a seed bed is reduced. The utility model discloses a conveyer has realized the seed steady motion to the control of seed and has guaranteed the uniformity of the grain distance of seed in the seedbed.

Description

Opposed belt type accurate seed throwing device

Technical Field

The utility model relates to an accurate seed metering technical field among the agricultural machine field, concretely relates to opposition belt type accurate seed feeding device.

Background

The seed metering device on the seeder is generally higher, seeds can fall to a seed bed after leaving the seed metering device after a certain distance, a tubular seed conveying pipe is generally adopted to guide the movement of the seeds, but the movement of the seeds in the seed conveying pipe has certain randomness, the movement track of the seeds can be changed after the seeds collide with the seed conveying pipe, the movement direction and speed of the seeds are changed, and the variation of the grain distance of the seeds falling into the seed bed is increased; and the speed of the seeds falling into the seed bed after the seeds are accelerated by gravity in the descending process is higher than the speed of the seeds leaving the seeding unit, the larger the speed is, the larger the jumping of the seeds at the moment of touching the ground is, and the consistency of the grain distances of the seeds in the seed bed is reduced. How to improve the consistency of the seed feeding speed and direction of the seeds after leaving the seed sowing device becomes an urgent need

Disclosure of Invention

The to-be-solved technical problem of the utility model is: an opposed belt precision seed feeder with better control of the motion trajectory of the seeds and the consistency of the seed spacing of the seeds in the seed bed is provided.

The to-be-solved technical problem of the utility model is that:

the utility model provides an accurate kind device of throwing of opposition belt, includes the seed metering pipe of constituteing by U shell and apron, its characterized in that: the seed metering intraduct is provided with two conveyer side by side the seed metering pipe lower part is equipped with the conveying board, conveyer includes drive shaft, driven shaft and conveyer belt, upper portion and lower part that drive shaft and driven shaft pass through the bearing to be fixed in the seed metering pipe, the conveyer belt cover is established on drive shaft and driven shaft, two be equipped with the clearance between conveyer belt looks proximal surface of conveyer belt for the centre gripping seed, and the at least one end of at least one drive shaft extends to the outside of seed metering pipe, two on the drive shaft or two be equipped with intermeshing's gear on the driven shaft, the upper portion of conveying board is located two between the conveyer belt.

Preferably, the outer side of the conveying belt is provided with a soft layer consisting of fluff or brushes.

Preferably, the thickness of the soft layer is 5-10 mm.

Preferably, the distance between the upper part of the gap between the two conveyor belts is larger than the distance between the lower part of the gap between the two conveyor belts.

Preferably, the maximum distance between the two conveying belts is 10-14 mm, and the minimum distance is 3-5 mm.

Preferably, the conveying plate comprises a guide plate positioned on the upper portion and a V-shaped sliding groove positioned on the lower portion, and the lower end of the conveying belt is tightly attached to the connecting portion of the guide plate and the sliding groove.

Preferably, the guide plate is formed in a shape that is wide at the top and narrow at the bottom, the edge of the guide plate portion located between the two conveyor belts is parallel to the surface of the conveyor belt, and the edge of the guide plate is inserted into the inside of the soft layer.

Preferably, the depth of the guide plate inserted into the soft layer is 1-2 mm.

The beneficial effects of the utility model reside in that:

the seed that utilizes the installation to grasp from the seed metering ware throw-out in the soft layer of the conveyer belt of seed metering ware bottom opposition, utilizes the cooperation of conveyer belt and conveying board, sends the seed to the position that is nearer apart from the seedbed according to same speed and orbit, has: 1. the seeds are effectively protected, and the seeds are prevented from being damaged due to impact in the pipe wall; 2. the movement track and the movement speed of the seeds are effectively controlled, the collision and bounce between the seeds and the soil are reduced, and the consistency of the grain distances of the seeds is improved.

Drawings

Figure 1 is an exploded view of one embodiment of the present invention,

figure 2 is a front view of an embodiment of the present invention,

figure 3 is a cross-sectional view taken in the direction a of figure 2,

figure 4 is a side view of an embodiment of the invention,

figure 5 is a cross-sectional view taken in the direction B of figure 4,

fig. 6 is a schematic view of a transfer plate according to an embodiment of the present invention.

In the figure:

15. a chute; 14. a guide plate; 13. a soft layer; 6. a gear; 2. a bearing; 4. a conveyor belt; 8. a driven shaft; 7. a drive shaft; 9. a transfer plate; 1. a cover plate; 5. a U-shaped shell;

Detailed Description

In order to make the technical solution and the beneficial effects of the present invention clearer, the following is a further detailed explanation of the embodiments of the present invention.

As shown in figure 1, the opposite belt type precise seed feeding device comprises a seed discharging pipe, two conveying devices arranged in the seed discharging pipe and a conveying plate 9 arranged at the lower part of the seed discharging pipe. The upper end of the seed discharging pipe is connected with or corresponds to the seed outlet of the seed metering device and is used for catching seeds discharged from the seed outlet of the seed metering device and pouring the seeds into a seed bed through the seed discharging pipe. In order to stabilize the track of the seeds and reduce the track change and seed damage caused by impacting the inner wall of the seed sowing pipe, a conveying device is arranged, and the seeds enter a seed bed through a conveying plate 9 after being subjected to speed limiting and limiting conveying of the conveying device.

In order to facilitate maintenance, the seed discharging pipe is of a detachable structure and comprises a U-shaped shell 5 and a cover plate 1, the cover plate 1 is covered at an opening of the U-shaped shell 5 to form a tubular structure, and the cover plate 1 is in threaded connection with the U-shaped shell 5. As shown in fig. 2, the cover plate 1 is provided with screw holes, and the opening of the U-shaped shell 5 is provided with fixing bolts, which are correspondingly connected in parallel and screwed. When maintenance is needed, the screws are disassembled.

The conveying device adopts a conveyor belt type conveying mechanism, and as shown in fig. 1, the conveying device comprises a driving shaft 7, a driven shaft 8 and a conveying belt 4. The driving shaft 7 and the driven shaft 8 are arranged up and down and are arranged at the upper part and the lower part of the inner pipe wall of the seed sowing pipe through the bearing 2. The conveyer belt 4 is sleeved on the upper parts of the driving shaft 7 and the driven shaft 8, the driving shaft 7 is linked with an external rotating mechanism, and the driven shaft 8 is driven to rotate through the conveyer belt 4. Thus, at least one end of the at least one drive shaft 7 extends outside the seed tube and is connected to an external rotation mechanism. The two conveying devices are arranged in parallel inside the seed sowing pipe, and a gap is arranged between the adjacent surfaces of the conveying belts 4 of the two conveying devices. The gap between the adjacent surfaces of the conveyor belt 4 is used for clamping the seeds and driving the seeds to descend.

The two conveying devices can be arranged in parallel, namely the length directions of the two conveying devices are parallel and parallel to the length direction of the seed sowing pipe. The gap between the two conveyor belts 4 of the two conveyors is thus equally spaced.

Preferably, the gap between the two belts 4 is shaped as a cone with a larger top and a smaller bottom, i.e. the upper part of the gap has a larger distance than the lower part, in order to better receive the seeds discharged from the seed metering device outlet. Preferably, the maximum distance of the gap between the two conveyor belts 4 is 10-14 mm, and the minimum distance is 3-5 mm.

In order to realize the descending of the seeds, the moving directions of the adjacent surfaces of the conveying belts 4 of the conveying devices must be the same, therefore, the two driving shafts 7 or the two driven shafts 8 are provided with the gears 6 which are meshed with each other, and the gears 6 not only realize the transmission between the two conveying devices, but also ensure that the moving directions of the adjacent surfaces of the two conveying belts 4 are consistent. As shown in fig. 1, 3 and 4, the gear 6 is preferably disposed outside the seed tube to prevent the seed from being crushed and damaged by being disposed inside the seed tube. Meanwhile, the soft layer arranged on the outer side surface of the conveying belt 4 can reduce the extrusion of the two conveying belts to the seeds, particularly, the positions of the upper end and the lower end of the gap at the adjacent positions of the two driving shafts 7 or the adjacent positions of the two driven shafts 8 are realized, and the seeds are better protected.

Preferably, the conveyor belt 4 is externally provided with a soft layer 13 consisting of fluff or brushes, for better gripping and protecting the seeds. And the thickness of the soft layer 13 is set to 5-10 mm so as to clamp seeds of various sizes.

The conveying plate 9 is used for pouring seeds conveyed by the conveying device into the seed bed, the conveying plate 9 is obliquely arranged or designed into an arc shape, the upper part of the conveying plate 9 is positioned inside the seed sowing pipe and inside a gap between the two conveying belts 4, and the lower part of the conveying plate 9 extends out of the seed sowing pipe.

Preferably, as shown in fig. 6, the transfer plate 9 includes a guide plate 14 at the upper part and a V-shaped chute 15 at the lower part, and the joint of the guide plate 14 and the chute 15 is closely attached to the lower end of the conveyor belt 4. The guide plate 14 is arranged in the gap between the two conveyor belts 4 in a clamping mode, after the seeds fall to the position of the guide plate 14, the movement track of the seeds is changed by the guide plate 14, and after the seeds enter the sliding groove 15, the sliding groove is V-shaped, so that the track of the seeds can be better limited. The track of the seeds is limited by the conveyor belt 4 and the guide plate 14 in the seed discharging pipe, and the V-shaped sliding groove 15 can limit the movement track of the seeds outside the seed discharging pipe, so that the controllability of the movement track of the seeds can be realized in the whole movement process of the seeds.

Preferably, the guide plate 14 is also configured to have a shape that is wide at the top and narrow at the bottom in order to accommodate the design that the gap between the conveyor belts 4 of the conveyor is large at the top and small at the bottom. And the part of the edge of the guide plate 14 located between the two conveyor belts 4 is parallel to the surface of the conveyor belt 4. Preferably, if the outer surface of the conveyor belt 4 is provided with a softer layer, the edges of the guiding plate 14 can be inserted inside the softer layer 14.

Preferably, the depth of the guide plate 14 inserted into the soft layer 13 is 1 to 2 mm.

The working principle of the utility model is that:

the utility model discloses install in the lower part of seed metering ware, the upper end in the clearance between two conveyer belts of the inside of seed metering pipe corresponds with the play seed outlet of seed metering ware, and the utility model discloses a drive shaft links with the slewing mechanism of seed metering ware. After the seeds come out of the seed outlet, the seeds enter the inside of the seed sowing pipe and fall into the inside of the gap, and are clamped by the conveying belt 4 or the soft layer on the conveying belt 4, and at the moment, the seeds lose the original falling speed and move downwards along with the conveying belt. Due to the linkage of the gear 6, the rotating directions of the two conveyor belts are opposite, so that the moving directions of one surfaces of the two conveyor belts forming the gap are the same, and the seeds can be clamped to move downwards. After reaching the position of the transfer plate, it is guided by the transfer plate 9 and enters the seedbed. Because the rotating speed of the conveyor belt 4 is constant, the consistency of the grain distance of the seed bed can be ensured.

In summary, the present invention is only a preferred embodiment, and not intended to limit the scope of the present invention, and various changes and modifications can be made by workers in the light of the above description without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the content of the specification, and all the equivalent changes and modifications of the shape, structure, characteristics and spirit according to the scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides an accurate kind device of throwing of opposition belt, includes the seed metering pipe of constituteing by U shell (5) and apron (1), its characterized in that:

two conveying devices are arranged in parallel in the seed sowing pipe, a conveying plate (9) is arranged at the lower part of the seed sowing pipe,

the transmission device comprises a driving shaft (7), a driven shaft (8) and a transmission belt (4),

the driving shaft (7) and the driven shaft (8) are fixed at the upper part and the lower part in the seed tube through the bearing (2),

the transmission belt (4) is sleeved on the driving shaft (7) and the driven shaft (8),

a gap is arranged between the adjacent surfaces of the conveyor belts (4) of the two conveyor devices for clamping seeds,

at least one end of at least one driving shaft (7) extends to the outside of the seed discharging pipe,

gears (6) which are meshed with each other are arranged on the two driving shafts (7) or the two driven shafts (8),

the upper part of the transfer plate (9) is positioned between the two conveyor belts (4).

2. An opposed belt precision seeding device according to claim 1, wherein:

and a soft layer (13) consisting of fluff or brushes is arranged on the outer side of the conveyor belt (4).

3. An opposed belt precision seeding device according to claim 2, wherein:

the thickness of the soft layer (13) is 5-10 mm.

4. An opposed belt precision seeding device according to claim 1, wherein:

the distance between the upper parts of the gaps between the two conveyor belts (4) is larger than that between the lower parts.

5. An opposed belt precision seeding device according to claim 4, wherein:

two the biggest interval in clearance is 10 ~ 14mm between conveyer belt (4), and the minimum interval is 3 ~ 5 mm.

6. An opposed belt precision seeding device according to claim 1 or 2, wherein:

the conveying plate (9) comprises a guide plate (14) positioned on the upper portion and a V-shaped sliding groove (15) positioned on the lower portion, and the lower end of the conveying belt (4) is tightly attached to the joint of the guide plate (14) and the sliding groove (15).

7. An opposed belt precision seeding device according to claim 6, wherein:

the guide plate (14) is in a shape with a wide upper part and a narrow lower part, the edge of the part of the guide plate (14) positioned between the two conveyor belts (4) is parallel to the surface of the conveyor belts (4), and the edge of the guide plate (14) is inserted into the soft layer (13).

8. An opposed belt precision seeding device according to claim 7, wherein:

the depth of the guide plate (14) inserted into the soft layer (13) is 1-2 mm.