WO2015194722A1

WO2015194722A1 - Cutting blade structure for combine harvester

Info

Publication number: WO2015194722A1
Application number: PCT/KR2014/012219
Authority: WO
Inventors: 엄성만
Original assignee: 엄성만
Priority date: 2014-06-18
Filing date: 2014-12-11
Publication date: 2015-12-23
Also published as: KR101593647B1; KR20140089496A

Abstract

The present invention relates to a cutting blade structure for a combine harvester and, more specifically, to a cutting blade structure for a combine harvester which comprises a middle cutting member between an upper cutting member and a lower cutting member and allows the middle cutting member to cut grain such as rice and the like at two points while reciprocating. The present invention comprises: an upper cutting member (10) which has a plurality of upper cutting blades (15) coupled to one side thereof toward the front along the lengthwise direction; a lower cutting member (20) which is provided at the lower section of the upper cutting member (10), and which has a plurality of lower cutting blades (25) coupled at positions corresponding to the upper cutting blades (15); a middle cutting member (30) which is installed between the upper cutting member (10) and the lower cutting member (20) so as to reciprocate horizontally, and which has middle cutting blades formed in close contact with the upper cutting blades (15) and the lower cutting blades (25), respectively, so as to cut two points of rice; and a cutting member fixing part (40) which is installed on the upper section of the upper cutting member (10) so as to couple only the upper cutting member (10) and the lower cutting member (20) to each other, and which causes the upper cutting blades (15), the middle cutting blades, and the lower cutting blades (25) to be in close contact with one another.

Description

Cutting Blade Structures for Combines

The present invention relates to a harvesting blade structure for combines, and more particularly, a harvesting blade for combines that has an intermediate cutting unit between the upper cutting table and the lower cutting table to cut grains such as rice at two points while the intermediate cutting unit reciprocates. It is about a structure.

The combine is a harvesting machine for grains such as rice, barley and soybeans in farms. It is a harvesting machine that automatically harvests and threshes grains and packs them in a certain amount. Play a role.

The combine is an indispensable farming machine for farmers who are currently experiencing severe labor shortages and is helping busy hands at harvest time. The combine is provided with a cutting blade structure for cutting the bottom of cereals such as rice.

The cutting blade structure is the upper cutting table is coupled to the upper cutting blade, the lower cutting table is coupled to the lower cutting blade, and the upper cutting blade to press the upper cutting blade to the upper cutting blade to adhere to the lower cutting blade It is included.

Therefore, the rice introduced into between the upper cutting blade and the lower cutting blade is cut while the left and right reciprocating movement.

However, the existing cutting blade structure is cut at one point (between the upper cutting blade and the lower cutting blade), so it is often impossible to cut partly precisely depending on the field conditions such as road surface or the driving direction of the combine. When the adhesive force of the lower cutting blade and the gap is lowered to each other there was a problem that is not cut more smoothly.

The present invention was devised to solve the above problems, and an object of the present invention is to cut the grains of rice and the like by fixing the upper mowing table and the lower mowing table and having an intermediate cutting section therebetween to reciprocate. It is to provide a cutting blade structure for combines to be cut at two points (upper cutting blade and intermediate cutting blade, lower cutting blade and intermediate cutting blade) to improve the cutting efficiency.

In addition, the present invention is formed by the movement guide portion and the movement limiting projection to limit the reciprocating movement distance of the intermediate cutting portion to effectively cut, as well as to reduce the breakage of parts, the oil in the injection hole through the injection hose It is to provide a cutting blade structure for combines that can be easily injected.

The configuration of the present invention for achieving the above object, the upper mowing table coupled to the plurality of upper cutting blades in the longitudinal direction toward one side; A lower mowing table provided at a lower portion of the upper cutting table and having a plurality of lower cutting blades coupled to a position corresponding to the upper cutting blade; An intermediate cutting unit installed between the upper cutting table and the lower cutting table in a reciprocating direction in a left and right direction, and having an intermediate cutting blade formed in close contact with the upper cutting blade and the lower cutting blade to cut two points of rice; It is installed to combine only the upper cutting table and the lower cutting table to the top of the upper cutting table, the upper cutting blade and the middle cutting blade for the lower cutting blade to be in close contact with each other; characterized in that it comprises a.

At this time, the upper guide table and the lower cutting table is formed in the movement guide portion formed with a predetermined length on the inside in the longitudinal direction to face each other at one or more locations, the intermediate cutting portion in the moving space of the moving guide portion Protruding to be located in the movement space is characterized in that the movement limiting projection is formed to limit the moving distance of the intermediate harvesting portion.

According to the combine blade structure consisting of the above configuration, by installing the intermediate cutting unit reciprocally moved between the upper cutting table and the lower cutting table, two points (upper cutting blades and one point) when grain cutting such as rice by the intermediate cutting unit The cutting efficiency can be greatly increased by being cut from the intermediate cutting blade, the lower cutting blade and the intermediate cutting blade, and the moving guide portion and the movement limiting protrusion are formed to limit the reciprocating movement distance of the intermediate cutting portion to effectively mow the parts. The breakage can be reduced, and the oil can be easily injected to reduce the occurrence of corrosion along with the smooth movement of the intermediate cutting unit, thereby extending the life.

1 is a perspective view of a cutting blade structure for combines according to the present invention,

2 is an exploded perspective view of the cutting blade structure for combine according to the present invention,

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a cross-sectional view taken along the line B-B of FIG.

Figure 5 is a state diagram showing the intermediate harvesting portion of the first embodiment in the combine harvester blade structure according to the present invention,

Figure 6 is a state diagram showing an intermediate harvesting portion of the second embodiment in the combine harvester blade structure according to the present invention,

Figure 7 is a state diagram showing the intermediate harvesting portion of the third embodiment in the combine harvester blade structure according to the present invention,

Figure 8 is a state diagram showing a cutting blade structure for a combine installed injection hose according to the invention,

Figure 9 is a cross-sectional structural view of the cutting blade structure for a combine installed injection hose according to the present invention.

Hereinafter, a cutting blade structure for combine according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in detail.

As shown in Figures 1 to 9, the cutting blade structure for combines according to an embodiment of the present invention is the upper cutting table 10, the lower cutting table 20, the intermediate cutting unit 30, the cutting unit fixing portion 40 ), And the intermediate harvesting unit 30 cuts grains such as rice while being reciprocated between the upper harvesting table 10 and the lower harvesting table 20.

The upper cutting table 10 is formed of a metal plate body of a predetermined length, the plurality of upper cutting blades 15 are coupled in the longitudinal direction toward one side toward the front.

The upper cutting blade 15 is a metal piece formed in a substantially triangular shape like a known cutting blade, one side is coupled to the upper cutting table 10, the blade is formed on both edges protruding to the outside.

The lower cutting table 20 is provided at the lower portion of the upper cutting table, is formed of a metal plate of a predetermined length, a plurality of lower cutting blades 25 toward the front in a position corresponding to the upper cutting blade 15 on one side Is combined.

The lower cutting blade 25 is also formed in the same shape as the upper cutting blade 15 may be made so that one side is coupled to the lower cutting table 20, as shown in the accompanying drawings at a predetermined interval to the lower cutting table 20 The blade pieces 20a may be extended to support the lower cutting blade 25 on the wing pieces 20a to be coupled to each other.

At this time, the upper cutting table 10 and the lower cutting table 20 is formed in the same length to each other according to the specification of the cutting blade structure or the upper cutting table 10 is separated into two at the top of the lower cutting table (20) It may be provided, the upper mowing table 10 and the lower mowing table 20 is fixed so as not to move while being coupled to each other.

The intermediate cutting table 30 is installed to reciprocate in the left and right directions between the upper cutting table 10 and the lower cutting table 20 in a coupled state, the upper cutting blade 15 and the lower through the reciprocating movement The middle cutting blade on the cutting blade 25 is to be cut each other, and the rice is cut between the upper cutting blade and the middle cutting blade, and between the lower cutting blade and the middle cutting blade is cut at two points instead of one point, It may be cut at two points in time, or may be cut first at the point of contact with rice first of the two points.

Here, as rice is cut at two points, for example, rice may be cut at another point even when rice is not cut at one point due to various factors during rice cutting, thereby solving the problem of rice not being cut. As a result, cutting efficiency can be increased.

The lower pruning table 30 may be configured as shown in Figures 5 to 7, the detailed configuration will be described later.

The cutting table fixing unit 40 is to be installed to couple only the upper cutting table 10 and the lower cutting table 20 to each other, except for the intermediate cutting unit 30, the upper portion of the upper cutting table 10 Is provided in the upper cutting blade 15 and the intermediate cutting blade and the lower cutting blade 25 to perform a role to be in close contact with each other.

The cutting table fixing unit 40, the coupling bolt for coupling the upper cutting table 10 and the lower cutting table 20 through the other portion of the upper cutting table 10 and the lower cutting table 20 ( 41) and a filling plate 42 positioned behind the intermediate harvesting unit 30 to fill a space between the upper harvesting table 10 and the lower harvesting table 20 and penetrating the coupling bolt 41. And a fixing plate 43 provided at an upper portion of the upper cutting table 10 and having one side penetrated through the coupling bolt 41 and a bolt hole 43a formed at the other side thereof, and a bolt hole of the fixing plate 43. 43a) is a helical coupling to press the upper surface of one side of the upper cutting table 10, the end of which is coupled to the upper cutting blade 15, the upper bolt 15 and the intermediate cutting blade and the lower cutting blade 25 in close contact with each other And 44.

The filling plate 41 may be formed of one thick plate, but because it is difficult to precisely process the space between the upper cutting table 10 and the lower cutting table 20, by stacking a single piece of metal Configure the filler plate.

A screw thread is formed on the inner circumferential surface of the bolt hole 43a for helical coupling of the pressure bolt 44, and the pressure bolt 44 is coupled to the bolt hole 43a through rotation to form the upper cutting table ( The upper surface is pressed while being in contact with the upper surface of one side of 10), and the left and right reciprocating movement of the intermediate cutting unit by adjusting the adhesion degree of the upper cutting blade 15 and the intermediate cutting blade and the lower cutting blade 25 according to the pressure degree It can be made smoothly while the rice is cut.

Here, in order to limit the left and right reciprocating movement distance of the intermediate harvesting portion 30, and to guide the intermediate harvesting portion 30 to move smoothly without shaking, the movement guide portion 21 and the movement limiting projection portion 50 are formed. do.

The movement guide portion 21 is formed in the lower mowing table 20, and is formed at each one or more positions along the longitudinal direction of the lower mowing table, and the moving space 22 is formed at a predetermined length inside. The movement limiting projection unit 50 will be guided in the movement so that it can be moved only in the moving space to limit the moving distance of the intermediate harvesting portion.

The movement limiting projection portion 50 is formed to protrude on the lower surface of the intermediate harvesting portion 30, is provided to be located in the moving space 22 of the moving guide portion 21, the intermediate harvesting portion 30 When the left and right reciprocating movement of the reciprocating movement in the moving space (22).

In this case, the movement limiting projection unit 50 is scratched on the outer surface during the reciprocating movement in the moving space 22, the edge of the moving space 22 hit the outer surface is not made smooth movement, this In order to solve, the rotary bushing 51 may be provided on the outside of the movement limiting protrusion 50.

A nut or the like may be spirally coupled to the movement limiting protrusion 50 to prevent the rotation of the rotary bushing 51.

Here, the movement guide portion 21 may also be formed on the upper mowing table 10, and the movement limiting projection portion 50 may also protrude on the upper surface of the intermediate harvesting portion to guide the movement of the intermediate harvesting portion. .

The intermediate cutting unit 30 of the present invention is to cut the rice while the intermediate cutting blade alternates with the upper cutting blade and the lower cutting blade, it can be configured in various forms.

As the first embodiment of the intermediate cutting unit 30, as shown in FIG. 5, the intermediate cutting table 31 having a length equal to or smaller than the length of the upper cutting table 10 and the lower cutting table 20; And a pair of intermediate cutting blades 32 coupled to the upper and lower surfaces of the intermediate cutting table 31 to face each other and provided to be in close contact with the upper cutting blade 15 and the lower cutting blade 25, respectively. Can be.

The intermediate cutting blade is coupled to the upper and lower surfaces of the intermediate cutting table 31, and the length between the two points of the rice to be cut in the case of cutting the rice is as long as the total thickness of the intermediate cutting table 31 and a pair of intermediate cutting blades It will have a length of, and the rice is cut at two points apart from each other by that length.

The intermediate cutting blade 32 is formed in a substantially triangular shape, as in the upper cutting blade, both edges are formed with a concave-convex blade 32a inclined in the direction of the upper cutting blade 15 and the lower cutting blade 25, respectively.

In addition, as shown in FIG. 6, the intermediate cutting unit 30 of the second embodiment has an intermediate cutting table 34 having a length equal to or smaller than the length of the upper cutting table 10 and the lower cutting table 20. And a pair of intermediate cutting blades 35, in which one surface of the upper and lower surfaces of the intermediate cutting table 34 is coupled to each other to be interviewed.

In this case, the intermediate cutting table 34 is installed so that the upper cutting blade 15 or the lower cutting blade 25 is located in the stepped portion formed as one side of each cutting table is coupled to the pair of intermediate cutting blade 35 The upper cutting blade 15 and the lower cutting blade 25 are provided in close contact with each other.

As such, the intermediate cutting unit of the second embodiment is coupled to one surface of the intermediate cutting table 34 in a state in which the intermediate cutting blades 35 overlap each other, and the length between two points of rice to be cut when cutting rice is The pair of intermediate cutting blades 35 have a length equal to the sum of the thicknesses, and rice is cut at two points separated from each other by the length thereof.

On both edges of the intermediate cutting blade 35, like the intermediate cutting blade of the first embodiment, uneven blades 35a are formed to be inclined toward the upper cutting blade 15 and the lower cutting blade 25, respectively.

The two point distances of the second embodiment have a shorter length than the two point distances of the first embodiment.

In addition, as shown in FIG. 7, the intermediate cutting unit 30 of the third embodiment includes an intermediate cutting table 37 having a length equal to or smaller than that of the upper cutting table 10 and the lower cutting table 20. The cutting blade is pressed to be coupled to any one of the upper and lower surfaces of the intermediate cutting table 37 and formed on the one side with a plurality of intermediate cutting blades 39 at the same interval as the upper cutting blade 15 and the lower cutting blade 25 integrally. The plate 38 is comprised.

At this time, the intermediate cutting table 37 is installed so that the upper cutting blade 15 or the lower cutting blade 25 is located in the stepped portion formed as one side of each cutting table is coupled to the intermediate cutting blade 39 is The upper cutting blade 15 and the lower cutting blade 25 are provided to be in close contact with each other.

As such, the intermediate cutting portion of the third embodiment is that the cutting blade plate 38 on which the intermediate cutting blade 39 is formed is coupled to one surface of the intermediate cutting table 37, and two points of rice to be cut when cutting rice. The length of the gap is to have a length equal to the thickness of the intermediate cutting blade 39, the rice is cut at two points apart from each other by the length.

Since the two point distances of the third embodiment are equal to the thickness of one intermediate cutting blade 39, they are formed with a length shorter than the two point distances of the second embodiment.

Here, since only one intermediate cutting blade 39 is provided to form a single layer without overlapping each other when viewed from the side, the blade 39a formed at both edges of the intermediate cutting blade should be formed in an uneven shape in the vertical direction.

That is, when the intermediate cutting blades are provided in pairs as in the first and second embodiments, the blades are formed to be inclined to face the upper cutting blade and the lower cutting blade, respectively, whereas only one intermediate cutting blade of the third embodiment is used. As provided, the blade is formed vertically to face the upper cutting blade and the lower cutting blade direction.

On the other hand, the cutting blade structure of the present invention as shown in Figure 8 and 9 is formed of a structure capable of injecting oil without separating the cutting blade structure from the combine, thereby smooth movement of the intermediate cutting portion, as well as corrosion It is possible to prolong the life by preventing the damage.

An injection hose 60 in which injection nozzles 61 are formed at regular intervals for injecting oil into the intermediate harvesting unit 30 is installed on the upper surface of the upper cutting table 10 for oil injection.

The injection hose 60 is installed along the longitudinal direction of the upper mowing table 10, and an oil supply nozzle 65 is connected to one side to supply oil to the injection hose. In the accompanying drawings, the inlet hose 60 is inserted into the fixing plate 43 so as to be fixed without a separate fixing means, and an installation position of the oil supply nozzle 65 also protrudes upward through the fixing plate 43. To be supported by the fixing plate 43 to prevent breakage or damage.

In addition, an injection hole 11 is formed in the upper mowing table 10 at intervals between installation of the injection nozzle 61 to supply oil discharged through the injection nozzle 61 to the intermediate cutting unit 30. .

The injection hole 11 may be formed so as not to generate a gap therebetween by coupling the injection nozzle 61, and may be formed larger than the injection nozzle 61 so that the injection nozzle is formed at the center of the injection hole 11. It may be arranged to be located.

According to the present invention configured as described above, conventionally, while the upper cutting table is reciprocating, the upper cutting blade is a method of making rice cut through a staggering operation with the lower cutting blade, or various problems such as field conditions according to cutting at one point. While there is a problem in that the rice is not cleanly cut due to the partial partial inaccuracy due to cutting, the present invention has two points (between the upper cutting blade and the middle cutting blade, while the intermediate cutting blade reciprocates between the upper cutting blade and the lower cutting blade). The rice is cut between the cutting blade and the intermediate cutting blade) so that the rice can be cut cleanly and accurately even if it is not cut at one point but cut again at another point.

Claims

An upper cutting table 10 coupled with a plurality of upper cutting blades 15 in a longitudinal direction toward one side;

A lower mowing table 20 provided below the upper cutting table 10 and having a plurality of lower cutting blades 25 coupled to a position corresponding to the upper cutting blade 15;

Intermediate cutting blade is installed between the upper cutting table 10 and the lower cutting table 20 to reciprocate in left and right directions, and close to the upper cutting blade 15 and the lower cutting blade 25 so as to cut two points of rice. The intermediate harvesting portion 30 is formed;

Only the upper cutting stand 10 and the lower cutting stand 20 are installed on the upper portion of the upper cutting stand 10 to allow the upper cutting blade 15 and the intermediate cutting blade and the lower cutting blade 25 to be in close contact with each other. Harvesting high government (40);

Cutting blade structure for combines comprising a.
The method of claim 1,

In the lower mowing table 20, a moving guide part 21 having a moving space 22 formed at a predetermined length in the inner side along a longitudinal direction is formed at one or more positions, respectively.

The lower limit of the intermediate harvesting portion 30 is protruded to be located in the moving space 22 and the reciprocating movement in the moving space 22 to limit the moving distance of the intermediate harvesting portion 30 is the movement limiting projection (50) Cutting blade structure for combines, characterized in that formed.
The method according to claim 1 or 2,

The intermediate cutting unit 30, the intermediate cutting table 31 having a length equal to or less than the length of the upper cutting table 10 and the lower cutting table 20, and the upper surface of the intermediate cutting table 31 and Combine harvester blade structure characterized in that it comprises a pair of intermediate cutting blades (32) which are coupled to face each other facing each other on the lower surface and provided in close contact with the upper cutting blade (15) and the lower cutting blade (25), respectively.
The method of claim 3,

Combine cutting blade structure for the combine, characterized in that the concave-convex blades (32a) are formed to be inclined in the direction of the upper cutting blade (15) and the lower cutting blade (25), respectively on both edges of the pair of intermediate cutting blades (32).
The method according to claim 1 or 2,

The intermediate cutting unit 30, the middle cutting table 34 having a length equal to or less than the length of the upper cutting table 10 and the lower cutting table 20, and the upper and lower surfaces of the intermediate cutting table 34 One side facing each other is configured to include a pair of intermediate cutting blade 35 which is coupled to interview each other,

The intermediate cutting table 34 is installed so that the upper cutting blade 15 or the lower cutting blade 25 is located in the stepped portion formed as one side of each cutting table is coupled to the pair of intermediate cutting blade 35 Cutting blade structure for combines, characterized in that provided in close contact with the upper cutting blade 15 and the lower cutting blade 25, respectively.
The method according to claim 1 or 2,

The intermediate cutting unit 30, the middle cutting table 37 having a length equal to or smaller than the length of the upper cutting table 10 and the lower cutting table 20, and the upper and lower surfaces of the intermediate cutting table 37; It is configured to include a cutting blade plate 38 which is bonded to any one surface and pressed to one side to form a plurality of intermediate cutting blades 39 at the same interval as the upper cutting blade 15 and the lower cutting blade 25,

The intermediate cutting table 37 is installed so that the upper cutting blade 15 or the lower cutting blade 25 is located in the stepped portion formed as one side of each cutting table is coupled to the intermediate cutting blade 39 is the upper cutting blade Cutting blade structure for combines, characterized in that provided in close contact with each of the (15) and the lower cutting blade (25).
The method of claim 6,

Cutting blade structure for combines, characterized in that the blade (39a) of irregularities in the vertical direction formed on both edges of the intermediate cutting blade (39).
The method of claim 1,

The cutting table fixing portion 40, the coupling bolt 41 for coupling the upper cutting table 10 and the lower cutting table 20 to each other through the other portion of the upper cutting table 10 and the lower cutting table 20. And a filling plate 42 positioned behind the intermediate harvesting unit 30 to fill a space between the upper harvesting table 10 and the lower harvesting table 20 and penetrating the coupling bolt 41. A fixing plate 43 provided at an upper portion of the upper cutting table 10 and having one side penetrated through the coupling bolt 41 and a bolt hole 43a formed at the other side thereof, and a bolt hole 43a of the fixing plate 43. Pressurized bolts that are spirally coupled to one end of the upper cutting edge 10 to which the upper cutting edge 15 is coupled to the end and the upper cutting blade 15 and the intermediate cutting blade and the lower cutting blade 25 are in close contact with each other. A cutting blade structure for combines, comprising: 44).
The method according to any one of claims 1, 2 and 8,

An injection hose provided on the upper surface of the upper cutting table 10 along the longitudinal direction of the upper cutting table 10 and having injection nozzles 61 formed at regular intervals to inject oil into the intermediate cutting unit 30 ( 60 is installed, the oil supply nozzle 65 is connected to one side of the injection hose 60,

The upper cutting table 10 is characterized in that the injection hole 11 is formed at the installation interval of the injection nozzle 61 to supply the oil discharged through the injection nozzle 61 to the intermediate cutting unit 30 Cutting blade structures for combines.