JPH04124041U - General-purpose combine harvester net structure - Google Patents

Abstract

(57) [Summary] (with modifications) [Purpose] To provide a receiving net structure for a general-purpose combine harvester that can improve the leakage rate from the receiving net without reducing sorting performance. [Structure] In a general-purpose combine harvester, the receiving net installed in the handling chamber consists of a crimp net in the front half of the handling barrel in the lengthwise direction and a concave in the rear half of the handling barrel. A leakage hole is provided between the rod-shaped bodies. [Effect] The leakage rate of the entire receiving network can be improved without reducing the sorting performance.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention can be applied to the handling room of a general-purpose combine harvester where harvested stem culms are thrown and fed. Regarding the structure of the receiving net in the handling room, in more detail, the receiving net in the handling room is Concerning the receiving net structure of a general-purpose combine consisting of a pump net and a concave in the rear half .

0002

[Conventional technology]

A general-purpose combine harvester throws the harvested stalks of rice, wheat, buckwheat, soybeans, etc. into the starting end of the handling room. provided. The reaped stem culm that is thrown in is handled by spiral blades along the length of the barrel. Threshing is done while moving from the starting end to the ending side in the handling room along the Since the entire stem culm is thrown into the handling chamber and supplied, the amount of stem culm that moves within the handling chamber is insignificant. always more.

0003 If there is a large amount of stem culms moving in the handling room, they may get mixed in with the threshing stem culms and leak through the receiving net. The problem is that a large amount of grain is transported to the discharge port at the end of the handling room without being lowered. There is.

0004

[Problem that the invention attempts to solve]

In order to solve this problem, conventionally a receiving net installed opposite to the handling barrel was used for rice, wheat, etc. When threshing grains such as grains, crimped nets have a relatively low leakage rate but are good at threshing. Alternatively, use a punched iron plate with many leak holes perforated by the material to be threshed. The reality is that they are used differently.

[0005] However, it is troublesome to replace the receiving net each time, and it is difficult to replace the receiving net each time. Reception nets made of punched iron plates still have a low grain leakage rate, especially for soybeans. Damage occurs due to products being carried around in the handling room without being able to be unloaded, resulting in quality deterioration and product failure. There is a problem that income will decrease as the rating grade as a If the entire receiving net is made of a receiving net with a high leakage rate, the grain sorting function will decrease the most. There was a problem with the process.

[0006] Therefore, in view of the conventional situation mentioned above, this invention was devised to solve the problems. The receiving net in the handling room is a crimp net in the front half where the threshing process is good, and a By composing with a concave in the rear half where the rate is high, the sorting function is reduced. To provide a receiving net structure for a general-purpose combine harvester that can improve the leakage rate from the receiving net without The purpose of this project is to:

[0007]

[Means to solve the problem]

The present invention achieves the above object by installing spiral blades in the handling chamber where the harvested grain culm is thrown and fed. In a general-purpose combine harvester equipped with a handling barrel having a It consists of a crimp net placed in the front half of the length and a concave net placed in the back half. This concave is formed between a number of rod-shaped bodies arranged in parallel along the length of the handling cylinder. It is equipped with leak holes for each.

[0008]

[Effect]

Therefore, since the harvested stem culms are thrown into the handling room 7 and supplied, the inside of the handling room 7 has to be moved. Even in the case of a general-purpose combine harvester C in which the amount of moving stem culms is large, the receiving net 13 installed in the handling room 7 The crimp net 34 is disposed in the front half of the handling cylinder 10 in the longitudinal direction, and the crimp net 34 is disposed in the rear half of the handling cylinder 10. By constructing the concave 35, the grains can be seen on the crimp net 34 in the front half. Smooth threshing process is achieved by utilizing the characteristics of the crimp net while allowing the grain to leak.

[0009] In addition, in the concave 35 in the rear half, there are many By providing each leakage hole 37 formed between the rod-shaped bodies 36 of Threshing grains that have been smoothly threshed on the limp net 34 pass over the concave 35 in the rear half. When moving, the threshing and grains leak smoothly through the leakage hole 37 provided along the length of the handling barrel. The leakage rate from the concave 35 installed in the rear half is improved, so the soybean During the threshing process, there is less damage caused by the rotation phenomenon in the handling room, and the process is much easier than before. There is no need to replace the receiving net depending on the material.

0010 Furthermore, the threshed grains and grains that leaked from concave 35 in the rear half were removed from the tube sieve. 44, the second material swinging transfer sorting plate 47, the stroke rack 49, etc. The first swinging transfer sorting plate 43 and the tube sheave 44 fall onto the second sorting mechanism. Since it does not fall directly onto the first grain sorting mechanism, which consists of the front half of the There is no reduction in the sorting function.

[0011]

【Example】

Hereinafter, the drawings showing the present invention as an embodiment will be explained. In FIG. 12, The general-purpose combine C has a front-side reaping section 1 disposed near the field, and a reaping section 1. The stem culms harvested by the reaping unit 1 are placed between the rear threshing unit 2 and the rear threshing unit 2, which is located higher than the A feeder 3 for lifting and conveying the grain is disposed in the rear upper threshing section 2. said reaping The part 1 includes a clipper-type cutting blade 5 and a hair-raising grain culm to the clipper-type cutting blade 5 while rotating. A guiding reel 4 and a cutting blade 5 are arranged behind the cutting blade 5 to move the reaped stem culm toward the center of the width of the machine. and an auger 6 that conveys the feeder toward the starting end of the feeder 3. Said The harvested stem culm is lifted up and conveyed by the feeder 3, and the whole stem culm is placed in the threshing section 2. It is thrown into the starting end of the girder handling room 7 and supplied.

0012 In the handling chamber 7 of the threshing section 2, a handling barrel 10 whose starting end side is formed with an inclined part 9 is disposed. However, the handling chamber 7 and the handling cylinder 10 are at an angle θ with respect to the front surface of the inclined part 9. The feeder is installed diagonally with the rear side facing upward, and is conveyed from the end of the feeder 3. The stem culm can be transferred smoothly, and a predetermined resistance can be applied to the conveyance by the spiral blades 12, which will be described later. Provides resistance and enables good threshing work.

[0013] This obliquely installed handling cylinder 10 is fixed to a handling cylinder shaft 11 installed along the inclination direction. A continuous spiral blade 12 is fixed to the outer periphery of the body 10. The pitch P of the blade 12 and the length L of the inclined portion 9 provided on the starting end side are provided so as to substantially match. The spiral blade 12 provided on the inclined portion 9 has a double spiral structure. Ma The spiral blade 12 except for the sloped part 9 has a height that projects beyond the outer diameter of the blade 12. The processed tooth 8 thus formed is attached with a mounting bolt, and this processed tooth 8 is as shown in FIG. They are respectively attached at positions that divide the circumference of the spiral blade 12 into nine equal parts when viewed from the front. As shown in FIG. 2, the outer diameter of the spiral blade 12 protruding from the outer diameter of the handling cylinder 10 is A receiving net 13 configured in a cylindrical shape with a gap narrower on the lower side and wider on the upper side is provided in between. has been done. In other words, the inner diameter D of the receiving net 13 is the inside diameter of the handling cylinder shaft 11 that supports the handling cylinder 10. A cylindrical shape with a radius centered on a center point O that is eccentric by a height H above the center. It is configured. This cylindrical receiving net 13 has an angle of 120 degrees as shown in FIGS. 2 and 3. The unit receiving net The first half Y of the crimp net 34 and the second half Z of the concave 35 are A total of six pieces are removably provided so as to be integrally connected to the other parts. Further, as shown in FIG. 1, the cylindrical receiving net 13 has both front and rear ends in the longitudinal direction and A pair of left and right drive rollers 16 that support the front and rear sides of the divided portion 15 from below, respectively. Supported by This drive roller 16 extends along the axial direction of the handling cylinder shaft 11. The roller drive shafts 17 are mounted and fixed to a pair of left and right roller drive shafts 17 that extend A bearing 19 fixed to the front partition wall, and front and rear drive rollers 16 below the dividing part 15, A bearing 20 fixed to a bracket 20a provided between 16 and a bracket provided at the end. They are each rotatably supported by bearings 20 fixed to the studs 20a.

[0014] A sprocket is attached to the shaft end of each roller drive shaft 17 that protrudes forward from the bearing 19. sprockets 21 are each fixed, and each sprocket 21 is connected via a transmission chain (not shown). By being driven in the same direction, the cylindrical receiving net 13 is moved in the opposite direction in standard threshing work. The roller drive shaft 17 drives only one side. It's okay.

[0015] As shown in Fig. 11, the upper part of the handling chamber 7 is covered by a removably installed handling chamber cover 22. However, this handling room cover 22 has three pieces that support the cylindrical receiving net 13 from above. guide rollers 23 are provided, and each guide roller 23 is provided inside the handling chamber cover 22. They are each freely rotatably supported by a bracket 23a having a U-shaped cross section fixed to the side. The three guide rollers 23 move the cylindrical receiving net 13 at both longitudinal ends and at the dividing portion 1. 5 and are provided at respective positions for guiding.

[0016] Furthermore, the unit receiving net X of the first half Y configured in the crimp net 34 is shown in FIGS. 3 and 6. A pair of front and rear horizontal supports curved in an arc along a direction perpendicular to the axis of the handling trunk shaft 11 as shown in FIG. The holding frame 13a and the left and right sides of this horizontal support frame 13a are connected along the axis of the handling barrel shaft 11. A pair of left and right front and rear support frames 13b to be fixed, and this front and rear support frame 13b and the above-mentioned horizontal support frame 13a and a plurality of horizontal reinforcing frames 13c and front and rear reinforcing frames 13d. A crimp net 34 is attached on a diameter D centering on the O point.

[0017] In addition, the unit reception network X of the rear half Z configured in the concave 35 is as shown in FIGS. 3 and 7. A pair of front and rear horizontal support frames curved in an arc along a direction perpendicular to the axis of the handling trunk shaft 11 36a and both left and right sides of this vertical support frame 36a are connected and fixed along the axis of the handling barrel shaft 11. A pair of left and right front and rear support frames 36b, and both left and right sides are fixed to this front and rear support frame 13b. A plurality of front and rear reinforcements are curved in an arc shape along a direction perpendicular to the axis of the handling trunk shaft 11. It consists of a strong frame 36c, and each front and rear lateral support frame is arranged on a diameter D centered at point O. 36a and a large number of rod-shaped bodies 36, 36, 36 fixed in parallel to each front and rear reinforcing frame 36c. are arranged between the many rod-shaped bodies 36, 36, 36 along the length direction of the handling cylinder. Leakage holes 37, 37, 37 are formed. This rod-shaped body 36 has a cross section as shown in FIG. The damage to the grain can be reduced by using a circular bar, but if the cross section is oval or triangular, Any rod-shaped body such as a square, quadrilateral or hexagon may be used, and the shape should be centered at point O as shown in Figure 8. The upper surface (inner surface) of the horizontal support frame 35a and the front and rear reinforcement frames 36c curve along the circular arc locus. They are arranged on a diameter D centered on point O by being fixed side by side on the side surface).

[0018] The pitch of the rod-shaped body 36 provided in the concave 34 is determined at the rear as shown in FIGS. 3 and 9. Although the entire unit receiving network X constituting half part Z may be configured to be the same P, other As shown in Figure 10, the pitch of the starting end along the length of the rear half Z is P1, and the pitch of the middle part is P1. If the pitch is P2 and the pitch at the end is P3, the Therefore, so that the pitch between each rod-shaped body 36 gradually increases, P1<P2<P3 It may be configured as follows. In this case, two front and rear reinforcing frames 36c form a set as shown in FIG. So that the polymerization is fixed. The above-mentioned pair of front and rear horizontal support frames 13a and 36a are provided with A pair of front and rear designs that curve in an arc shape along the direction of The inner rails 25 are fixed respectively, and each guide rail 25 is connected to the outside when combined into a cylindrical shape. The guide rail 25 is divided into three equal parts in the circumferential direction so that there are no steps on the circumference. It has a structure in which it is supported by a drive roller 16. Furthermore, the front and rear support frames 13b and In order to connect three unit receiving nets X adjacent to each other in the circumferential direction, A large number of joint pipes 26 provided alternately are fixed to each other, and the joint pipes The pipe 26 connects adjacent unit receiving nets It is configured with a hinged joint to connect the pipe.

[0019] This connecting rod 27 includes a rear connecting rod 27a inserted from the rear side as shown in FIG. and the front insertion rod 27b, which has a short overall length and is inserted from the front side, allows the receiving net 13 to be It is located over the length. Three front insertion rods 2 inserted from the front side 7b connects the unit receiving net X, which becomes the front half Y, in a cylindrical shape, but is inserted from the rear side. The three rear side insertion rods 27a connect the three unit receiving nets 26, and at the same time, it is longer than the unit receiving net X that becomes the rear half Z. It protrudes forward and connects the front half Y and the rear half Z in the length direction via the dividing part 15. Set in length. In addition, there is a horizontal support on the front side of the unit receiving net X that makes up the rear half Z. A spacer 29 is fixed to the front surface of the frame 13a, and a longitudinal dividing portion 15 is formed. It is.

[0020] A supply port 30 connected to the terminal end of the feeder 3 is opened in the front wall of the handling chamber 7; The inlet side of the supply port 30 is a horizontally long rectangle with a wide width and a low height when viewed from the front as shown in FIG. It is formed into a shape, and its width B substantially matches the outer diameter E of the processed tooth 8. Also supply The depth side of the mouth 30 is a circular guide that surrounds the outer diameter of the cylindrical portion of the handling barrel 10 at intervals. A receiving net is formed in a cylindrical shape on the outer diameter of the depth side of the guide tube 31. The inner diameter of 13 is facing.

[0021] The above describes an example in which the cylindrical receiving net 13 is rotationally driven, but this receiving net 13 is It may be fixed so that it can be turned upside down without being rotated. Moreover, the receiving net 13 has a cylindrical shape. It is configured in a semicircular arc shape provided only on the lower side of the handling cylinder 10 without being configured in a fixed manner. may be set. As shown in FIG. 12, at the end of the handling chamber 7, there is a handling cylinder 1 behind the rear end of the cylindrical receiving net 13. A discharge chamber 40 formed by a plurality of discharge blades fixed to the terminal end of the discharge chamber 40 is provided, A discharge port 42 is opened in the discharge chamber 40 . On the other hand, in the lower part of the handling room 7 there is a sorting machine. This sorting section is designed to shake and sort leakage from the receiving net 13. A diagonally upward first swinging transfer sorting plate 43 that is transferred backward while the sorting plate 43 is The tube sheave 44 is connected to the rear end, and the tube sheave 44 is arranged lower than this and is directed diagonally upward. a second swinging transfer sorting plate 45 and a sorting net 46 connected to the rear end of the sorting plate 45; a second object swinging transfer sorting plate 47 disposed at a predetermined distance from the rear end of the sorting net 46; and a plurality of strollers connected diagonally upward to the rear end of the sorting plate 47. A switch 49 is provided.

[0022] Further, a first fan 50 and a second swinging transfer selection plate 43 are provided below the first swinging transfer selection plate 43. A second fan 51 is disposed below the separate plate 45, and the second fan 51 In front of is a first grain conveying spiral 52 for collecting the first grains leaked from the sorting net 46. It is arranged. A third fan 53 is disposed behind this first grain conveying spiral 52. In front of this third fan 53, a second object conveying spiral 54 is disposed. Said The first grain return flow plate 55 is disposed between the first grain conveying spiral 52 and the third fan 53. At the same time, the second object return flow plate 56 extends from the bottom to the top of the stroke rack 49. is arranged from above to the rear of this second return flow plate 56 to discharge dust to the outside of the machine. A second dust exhaust port 57 is opened, and a pair of left and right crawlers are installed below these sorting sections. 59 are provided.

[0023]

[Effect of the idea] As explained above, in this invention, the harvested stem culms are thrown into the handling room and supplied. Even with general-purpose combine harvesters, where a large amount of stem culms are moved within the handling room, The receiving net to be installed is composed of a crimp net in the first half of the lengthwise direction of the handling cylinder and a concave net in the second half. By doing so, the crimp net in the front half allows grains to leak out while the crimp net Smooth threshing process can be achieved by utilizing the characteristics.

[0024] Moreover, the threshing process that has been carried out smoothly on the crimp net in the first half is done in the second half. When moving on the handling barrel, threshing and grain leak holes formed along the length of the handling barrel. The leakage rate from the concave in the rear half is improved, making it possible to reduce the leakage rate from the concave at the rear. This eliminates the need to replace the receiving net depending on the material. Furthermore, the threshed grains and grains leaking from the concave in the rear half are removed from the second sorting mechanism. The grains fall directly onto the grain sorting mechanism, so the grain sorting machine in the sorting section There is no reduction in performance.

[0025] Therefore, we need a general-purpose method that can improve the leakage rate of the entire receiving network without reducing the sorting performance. It can provide a receiving net structure for commercial combine harvesters.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional side view of a receiving net embodying the present invention.

FIG. 2 is a longitudinal sectional front view of a cylindrical receiving net showing a crimp net divided into three equal parts in the circumferential direction.

FIG. 3 is a side view of a unit receiving net showing a crimp net in the first half and a concave net in the second half.

FIG. 4 is a longitudinal sectional front view showing the main parts of the dividing section.

FIG. 5 is a longitudinal side view showing how the receiving net is attached to the supply port.

FIG. 6 is an enlarged longitudinal sectional side view showing the main parts of a receiving net configured as a crimp net.

FIG. 7 is an enlarged vertical cross-sectional side view showing the main parts of a concave receiving net.

FIG. 8 is a longitudinal sectional front view showing an enlarged main part of a concave receiving net.

9 is a plan view taken along arrow F in FIG. 8; FIG.

FIG. 10 is a plan view taken along arrow F in FIG. 8, showing another example.

FIG. 11 is a front view of the threshing section showing the handling room.

FIG. 12 is an overall side view of the general-purpose combine harvester, with main parts shown in cross section.

[Explanation of symbols]

C Combine harvester 7 Handling room 12 Spiral blade 1
3 Receiving net 10 Handling barrel 34 Crimp net 35 Concave 36 Rod-shaped body 37 Leakage hole 43
First swinging transfer sorting plate 44 Chubby sieve 47
Second object swinging transfer sorting plate 49 Stroller rack X
Unit receiving net Y First half Z Second half.

Claims (1)

[Scope of utility model registration request] Claim 1: A general-purpose combine harvester in which a handling barrel having spiral blades is disposed in a handling chamber into which harvested grain culm is thrown and supplied, in which a receiving net provided in the handling chamber is combined with a crimp net in the front half of the handling barrel in the longitudinal direction. A general-purpose combine receiving net structure comprising a concave at the rear half, and a leakage hole formed between rod-shaped bodies arranged in parallel along the length direction of a handling barrel in the concave.