JP2879430B2 - Fertilizer delivery device for tractor fertilizer spreader - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fertilizer delivery device for a tractor fertilizer spreader suitable for powdery fertilizer and granular fertilizer.

[0002]

2. Description of the Related Art Conventionally, in Hokkaido agriculture, most of the work is performed using a tractor. There is currently a fertilizer for granular tractor fertilizer application in the field, but none for powder. The reason is that the mechanism for sowing powder fertilizer accurately was difficult. At present, most fertilizers manufactured by each company are granular. In today's tough agricultural economy, many farmers are hoping for the emergence of tractor fertilizers that can accurately sow powdered fertilizers. This is because powder fertilizers have the same efficacy as granular fertilizers, but are inexpensive. It is a place where it is particularly desirable to use powdered superphosphate, which is consumed most.

[0003]

However, due to the nature of the powdered fertilizer, none of the powdered fertilizers can be accurately applied. It goes without saying that the most important part of the tractor manure spreader is the mechanism of the fertilizer delivery section. The requirements for the fertilizer delivery section are that the fertilizer powder has a structure that does not easily adhere to the equipment of the delivery device,
And materials.

[0004]

Means for Solving the Problems In order to achieve the above object, the present invention is as follows. That is,
In the present application, the front and rear inclined walls 2A and the right and left vertical walls 2B are formed in a pyramid shape, a lower surface opening 2C is formed at the lower end, and a downward U-shaped opening is formed at the lower end of the front inclined wall 2A. 2D
Is formed, and a feeding belt 3 that feeds fertilizer rotatably provided at a lower surface opening 2C of the fertilizer tank 2 and the feeding belt 3 is located in front of the lower surface opening 2C. Belt wheel 3A and lower surface opening 2C
, And a feed-out belt body 3C stretched between the two belt pulleys, and the front belt pulley 3A is attached to both ends of the front shaft 3A1. The left and right belt wheels 3A2, and the V pulley 3A3 attached to the middle of the left and right belt wheels, the rear belt wheel portion 3B has left and right belt wheels 3B2 attached to both ends of the rear shaft 3B1, The V-pulley 3B3 is attached to the middle of the left and right belt wheels. The delivery belt body 3C has a belt body 3C1 and a warp shape formed in a short round bar shape grouped on the surface of the belt body. The belt body 3C comprises a projection 3C2.
A V-belt-shaped ridge 3C3 fitted to the pulleys 3A3 and 3B3 is attached endlessly at the center of the back surface of the belt 1 and the side of the belt body 3C1 is perpendicular to the longitudinal direction of the belt body 3C1. A V-shaped cut 3C31 is engraved, and the upper part 3D of the feeding belt 3 is a fertilizer tank 2
Is disposed in a state of being close to the lower surface opening 2C from below,
The cover-shaped fertilizer increase / decrease adjusting plate 4 provided in the fertilizer tank so as to cover the upper part 3D of the feed belt 3
The front and rear edges of the fertilizer increase / decrease adjusting plate 4 are slid on rails 2C1 attached inside the front and rear edges of the lower opening 2C of the fertilizer tank 2 so as to follow the upper surface of the upper part 3D. The fertilizer increase / decrease adjusting plate 4 is movably fitted, is inserted from the fertilizer increase / decrease adjusting plate insertion opening 2B1 opened on one of the vertical walls 2B of the fertilizer tank 2, and supports the outer end of the fertilizer increase / decrease adjusting plate. This is a fertilizer delivery device in a tractor fertilizer spreader that can move in and out.

[0005] In this case, the configuration can be made as follows. A.
The wart-like projections are made of a medium-hard rubber and have a flat tip, a height of about 2 mm, a diameter of about 3 mm, and an adjacent space of about 3 mm. B. The width of the feeding belt is about 120 mm, the thickness is 3 mm, and the circumferential length is about 420 mm
The degree is configured. C. The rear inclined wall 2A is provided with a cleaning port 2E having a lid 2E1 that can be opened and closed.

[0006]

Embodiments of the present invention will be described with reference to the drawings. 1 is a fertilizer delivery device in the tractor fertilizer spreader of the present invention. 2 is a fertilizer tank,
The front and rear inclined walls 2A and the left and right vertical walls 2B are formed in a pyramid shape, a lower surface opening 2C is formed at a lower end, and a downward U-shaped opening 2D is formed at a lower end of the front inclined wall 2A. ing. Reference numeral 2E denotes a cleaning port having an openable and closable lid 2E1 provided on the rear inclined wall 2A.

Reference numeral 3 denotes a feeding belt rotatably provided in the lower opening 2C of the fertilizer tank 2 for feeding fertilizer, and a front belt wheel 3A located in front of the lower opening 2C.
Rear belt wheel 3B located behind lower opening 2C
And a feeding belt body 3 stretched between the two belt wheels.
C. The front belt wheel 3A includes left and right belt wheels 3A attached to both ends of the front shaft 3A1.
2 and a V pulley 3A3 mounted in the middle of the left and right belt wheels. Rear belt wheel 3B
Is composed of left and right belt wheels 3B2 attached to both ends of the rear shaft 3B1, and V pulleys 3B3 attached between the left and right belt wheels.

[0008] The feeding belt body 3C is a belt body 3C.
1 and a warp-shaped protrusion 3C2 formed in a short round bar shape and arranged on the surface of the belt body, and the warp-shaped protrusion has a flat tip, a height of about 2 mm and a diameter of about 3 mm.
mm, and the distance between adjacent ones is about 3 mm. The wart-like projections 3C2 are made of medium-hard rubber. Further, a V-belt-shaped ridge 3C3 fitted to the pulleys 3A3 and 3B3 is attached endlessly at the center of the back surface of the belt body 3C1.
A V-shaped notch 3C31 is cut in the right side of the belt main body 3C1 in a direction perpendicular to the longitudinal direction of the belt body 3C1.
The upper portion 3D of the feeding belt 3 is disposed so as to approach the lower surface opening 2C of the fertilizer tank 2 from below.

[0009] Therefore, when this feeding belt is rotated, the fertilizer on the wart-like projections arranged in a group becomes:
When the wart-like projections face downward, they are dropped and scattered. At the same time, the powdered fertilizer adhering to the surface of the feeding belt 3 is separated and falls because the surface of the feeding belt expands and contracts. The width of the feeding belt is about 12
0 mm, the thickness is 3 mm, and the circumferential length is about 420 mm.

Reference numeral 4 denotes a lid-shaped fertilizer increase / decrease adjusting plate provided in the fertilizer tank so as to cover the upper portion 3D of the feeding belt 3. That is, the fertilizer increase / decrease adjusting plate 4 is
Is formed in a horizontal plate shape so as to follow the upper surface of the upper portion 3D. In addition, the front and rear edges of the fertilizer increase / decrease adjusting plate 4 are slidably fitted to rails 2C1 attached inside the front and rear edges of the lower surface opening 2C of the fertilizer tank 2. And this fertilizer increase / decrease adjusting plate 4 is a fertilizer increase / decrease adjusting plate insertion opening 2B1 opened on one vertical wall 2B of the fertilizer tank 2.
The fertilizer increase / decrease adjusting plate can support the outer end of the fertilizer increasing / decreasing plate and move in and out.

Reference numeral 5 denotes a driving wheel, which is configured to interlock with the feeding belt 3. When the driving wheel rotates, the associated feeding belt rotates in the direction of the arrow. FIG. 1 shows a case in which an appropriate number of fertilizer delivery devices 1 are arranged on a frame F. In this case, the fertilizer increase / decrease adjusting plates 4 are connected by a connecting rod 6, and are operated at the same time. The amount of the fed fertilizer is increased or decreased by operating the fertilizer increase / decrease adjusting plate 4. Reference numeral 7 denotes a known agitator horizontally rotatably mounted in the fertilizer tank 2. 7A is the gear on the agitator side,
The chain 3B is connected to the gear 3E on the feeding belt 3 side.

[0012]

Since the present invention is configured as described above, the following effects can be obtained. 1. Wart-like projections are grouped on the surface of the feeding belt provided in the lower opening 2C of the fertilizer tank, and a lid-like fertilizer increase / decrease adjusting plate is provided along the outer periphery of the upper surface. By moving the fertilizer in and out, the amount of fertilizer sent out can be adjusted. 2. At the same time, the fertilizer placed on the group of wart-like projections 3C2 comes out of the fertilizer tank and falls. That is, when the fertilizer increase / decrease adjusting plate 4 is moved inward of the fertilizer tank (from arrow C to the left in FIG. 3), the group of wart-like projections for transporting fertilizer located in the fertilizer tank is covered, and The amount of fertilizer sent out becomes small, and when the fertilizer increase / decrease adjusting plate 4 is moved to the right, the amount of fertilizer sent out becomes large. As a result, it is possible to accurately apply the fertilizer in the form of powder and granular fertilizer not only on a flat land but also on a rising, falling, or right and left slope.

3. Since there is a wart-like projection on the surface of the feeding belt, there is no slip on the contact surface between the fertilizer and the feeding belt when feeding the fertilizer. 4. Since the height of the wart-like projections is about 2 mm, the function of the fertilizer increase / decrease adjusting plate is accurate. That is, one of the granular fertilizers 8
The size of the grains is mainly about 2 mm to 4 mm. Therefore, it is possible to make it hard to spill out from the gap between the fertilizer increase / decrease adjusting plate and the bottom of the fertilizer tank. (See FIG. 9) The height of the wart-like projections is about 2 mm, the diameter is about 3 mm, and the space between adjacent protrusions is about 3 mm. This makes it relatively difficult to fix the powdered fertilizer. Can be fertilized. Also in this case, it does not spill out from the gap between the fertilizer increase / decrease adjusting plate and the bottom of the fertilizer tank. 6. A V-belt-shaped ridge 3C is provided at the center of the back surface of the feeding belt.
Since the feed belt 3 is provided, the slippage of the feeding belt can be prevented, and the slippage of the feeding belt during rotation can be prevented. 7. A V-shaped notch 3 is formed on the V-belt-shaped ridge 3C3.
Since C31 is engraved, the feeding belt body 3C can be reliably rotated even if the V pulley has a small diameter. (See Fig. 8)

[Brief description of the drawings]

FIG. 1 is a perspective view of the entire device as viewed from the rear.

FIG. 2 is an enlarged perspective view of a main part, in which a part of the above is cut away.

FIG. 3 is an enlarged perspective view of a main part in which a feeding belt portion is omitted.

FIG. 4 is an enlarged perspective view of a main part viewed from a bottom surface direction.

FIG. 5 is a side view with a part cut away.

FIG. 6 is an enlarged sectional view taken along line AA.

FIG. 7 is an enlarged sectional view of a main part of the feeding belt.

FIG. 8 is an enlarged side view of a main part of the feeding belt.

FIG. 9 is an enlarged vertical cross-sectional view illustrating a relationship between an opening of a fertilizer tank, a feeding belt, and a fertilizer increase / decrease adjusting plate.

FIG. 10 is a sectional view taken along line BB.

FIG. 11 is an enlarged vertical cross-sectional view illustrating a relationship between a feeding belt, a fertilizer increase / decrease adjusting plate, and a fertilizer.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Fertilizer delivery device in tractor fertilizer spreader 2 Fertilizer tank 3 Feeding belt 4 Fertilizer increase / decrease adjusting plate 5 Driving wheel 6 Connecting rod 7 Agitator

Claims (4)

(57) [Claims] 1. A front and rear inclined wall (2A) and left and right vertical walls (2B) are formed in a pyramid shape, and a lower surface opening (2
C) is formed, a fertilizer tank (2) in which a downward U-shaped opening (2D) is formed at the lower end of the front inclined wall (2A), and a lower surface opening (2C) of the fertilizer tank (2). And a feed belt (3) for feeding fertilizer rotatably provided on the lower surface, wherein the feed belt (3) includes a front belt wheel portion (3A) located in front of the lower surface opening (2C), and a lower surface opening. Rear belt wheel (3B) located behind (2C)
And a feeding belt body (3C) stretched between the two belt wheel portions, and the front belt wheel portion (3A)
It is composed of left and right belt wheels (3A2) attached to both ends of the front shaft (3A1), and V pulleys (3A3) attached between the left and right belt wheels. A left and right belt wheels (3B2) attached to both ends of the rear shaft (3B1), and a V pulley (3B3) attached between the left and right belt wheels.
This feeding belt body (3C) is a belt body (3C1).
And a warp-shaped protrusion (3C2) formed in a short round bar shape grouped on the surface of the belt body, and the pulley (3A3, 3A3,
3B3), a V-belt-shaped ridge (3C3) fitted endlessly is attached thereto, and the belt body (3C1) has a V-shaped side surface in a direction orthogonal to the longitudinal direction of the belt body (3C1). The upper part (3D) of the feeding belt (3) is disposed in such a manner as to approach the lower surface opening (2C) of the fertilizer tank (2) from below, and
A lid-shaped fertilizer increase / decrease adjusting plate (4) provided in the fertilizer tank so as to cover an upper portion (3D) of the feeding belt (3) includes:
It is formed in a horizontal plate shape so as to follow the upper surface of the upper portion (3D) of the feeding belt (3).
C) is slidably fitted to the rail (2C1) attached inside the front and rear edges of the fertilizer tank, and this fertilizer increase / decrease adjusting plate (4) is set up on one vertical wall (2B) in the fertilizer tank (2). A fertilizer delivery device for a tractor fertilizer spreader, which is inserted from a fertilizer increase / decrease adjusting plate insertion opening (2B1) and supports an outer end of the fertilizer increase / decrease adjusting plate and can move in and out. 2. The wart-like projection is made of a medium hard rubber,
And a flat end, a height of about 2 mm, a diameter of about 3 mm, and an interval between adjacent ones of about 3 mm.
A fertilizer delivery device in the tractor fertilizer spreader described in the above. 3. The fertilizer delivery device for a tractor fertilizer spreader according to claim 1, wherein the width of the feeding belt is about 120 mm, the thickness is about 3 mm, and the circumferential length is about 420 mm. 4. An openable / closable lid (2) is provided on the rear inclined wall (2A).
The fertilizer delivery device for a tractor fertilizer spreader according to claim 1, further comprising a cleaning port (2E) having E1).