JP3118710B2 - Threshing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing machine such as a combiner in which a handling cylinder and an oscillating sorter are installed in a threshing machine casing.

[0002]

Conventionally, Japanese Utility Model Laid-Open No. 2-17
As shown in Japanese Patent No. 041, in a threshing structure in which a swing sorter is formed from synthetic resin to reduce the weight, a sealing material is sandwiched between upper and lower side walls of the swing sorter by metal holding plates and tightened with bolts. There is a technique to fix the sealing material and the tip of the sealing material to the left and right side walls of the threshing machine.However, there is a difference in the amount of expansion and contraction between the synthetic resin and metal due to changes in the outside temperature. The presser plate becomes defective or the bolt tightening force is excessive.The presser plate is deformed or the rocking sorter or the sealing material is easily compressed more than necessary. There is a problem that the durability cannot be easily improved.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a handling cylinder
Threshing machine with a swinging and sorting machine installed inside the threshing machine housing
To close the gap between the side wall of the threshing machine casing and the side wall of the swing sorting machine
Groove for fitting the sealing material to be formed is formed on the side wall of the swing sorting machine
And a locking part for engaging and fixing the hole provided inside the groove.
Rocking sorter made of synthetic resin
Having the groove open outward on the outer surface of the side wall of
The seal material that closes the gap between the side wall of the threshing machine casing and the side wall of the swinging sorter is fitted into the groove and connected and fixed without using a metal fixture, so that the material changes over time or is damaged due to excessive tightening. Can be easily improved, durability can be easily improved, and the seal material mounting structure can be simplified. In addition, since the groove for fitting the seal material is formed on the side wall of the swing sorter, the seal material mounting structure is simplified. In addition, it is possible to easily improve the operability of attaching and detaching the swinging sorter and the like, and the stopper is formed in the sealing material so as to be engaged and fixed to the hole provided in the groove .
The sealing material fixing structure and the fixing operation can be easily simplified, and the number of components and the manufacturing cost can be easily reduced.

[0004]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional view of a main part of a swing sorting machine, and FIG.
FIG. 3 is a plan view of the combine, and FIG. 3 is a plan view of the combine, wherein (1) is a track frame on which the traveling crawler (2) is mounted, and (3) is a machine base mounted on the track frame (1). , (4) is a threshing unit which is a threshing machine in which a feed chain (5) is stretched on the left side and has a built-in handling cylinder (6) and a processing cylinder (7), and (8) is a cutting blade and grain culm transport mechanism. (9) is attached to the rear side of the threshing unit (4), a straw processing unit facing the ends of the straw chain (10) and the straw tine (11), and (12) is a driver's seat (13) a driver's cab provided with a driving operation unit (14); (15) an engine unit provided at the front right side of the machine base (3) and having an engine (16) provided inside; (17) an engine unit; (15) A grain tank which is arranged at the rear and stores the grain from the threshing unit (4) through a fryer cylinder (18). It is configured to perform a continuously reaping-threshing work.

Further, as shown in FIGS. 4 and 5, (1)
9) is a handling room in which an axial-flow-type handling cylinder (6) that is suspended in the longitudinal direction of the fuselage is installed, (20) is a handling port for inserting grain culms into the handling room (19), and (21) is A crimping net stretched under the handling chamber (19), and a swing sorting machine (22) for swingably supporting in the front-rear direction via a swinging link (23) and a guide roller (24); A feed pan (25) located below the front of the crimp net (21) and a chaff sheave (2) located below the rear of the crimp net (21).
6), and a rear transfer rack (29) and a Glen sheave (27) disposed below the chaff sheave (26). The swing sorter (22) has a rear side of the swing sorter (22). Is fitted with a sieve line (28).

[0006] Further, in the figure, (30) is the sorter (2).
2) Karino, which feeds the sorting wind in the direction, (31) is the first conveyor that takes out the kernels into the tank (17) via the frying cylinder (18), and (32) is the second cylinder that returns the second product. A second conveyor which returns to the front part of the swinging sorter (22) through the oscillating sorter (22), and a suction / discharge fan (34) which faces the suction port (35) above the left side of the sieving line (28). ) And processing cylinder (7)
The grains that have been threshed are sorted by a sorter (22) and only the sized grains are taken out to the tank (17), and the straw is discharged through a straw chain (10) and a tine (11).
6) It is configured to be sent to the straw processing section (9) having (37), cut and discharged outside the machine.

As shown in FIG. 6, the sorter (22) is a resin molded product made of a synthetic resin such as polypropylene and formed in a saucer having an open upper and rear surface.
5), rear transfer rack (29), and Glen Sheave (2)
The back surface forming 7) and the left and right side walls (38) and (39) are integrally formed, and a pair of left and right support arms (40) are integrally formed on the front end bottom surface.

As shown in FIGS. 4 and 8, the rocking link (23) is provided on an outer surface of a front wall (42) of a threshing machine case (41) constituting a threshing unit (4). The upper end is rotatably supported on the front wall (42) via a fixed shaft (43), and is opened from the opening (44) below the front wall (42).
1) The lower end of the link (23) faces inside. A swing drive shaft (4) is provided on the lower portion of the outer surface of the front wall (42) of the machine housing (41).
5) is suspended. The disk cam (46) is eccentrically mounted on the shaft (45), and integrally mounted.
A bearing (47) is fitted around the outer periphery of (6), and a swing arm (49) is provided around the outer periphery of the bearing (47) to fasten a base end via a retaining ring (48). Then, the lower end of the swing link (23), the tip of the support arm (40), and the tip of the swing arm (49) are connected by one set shaft (50), and these three members are interlocked and connected, and the sorting machine ( 22) The front mounting support and the drive connection with the swing drive shaft (45) are simultaneously performed.

The set shaft (50) is inserted into the holes of the links (23) and the bearings (23a) (40a) (49a) of the arms (40) (49) from the left side of the machine casing (41). The set shaft (50) is prevented from coming off by the left swing link (23) and the bearing portion (23) of the support arm (40).
a) Inserting the split pin (51) into the pin hole (50a) (50b) provided in the shaft (50) in the radial direction at the position sandwiching the (40a), thereby improving the maintainability and improving the dimensional accuracy of the parts. At the same time, the number of parts has been reduced.

The tip of the set shaft (50) is tapered (50c) so that the shaft (50) can be easily inserted.

As shown in FIGS. 4 and 9, a sorting board (22)
At the rear end, a gate-shaped support frame (51) is attached. The left and right side walls (38) (3) of the sorting machine (22) are arranged on both sides of the arm (51).
9) A bolt is fixed to the outer surface of the rear end with a roller (24) rotatably supported on the outer surface on both sides of the arm (51) via a roller shaft (52).
Are swingably fitted to guide rails (55) fixed to the left and right side walls (53) and (54) of the casing (41).

The sieving line (28) is connected to the lower horizontal connecting rod (5).
6) is mounted on the upper surface of the arm (51) and fixed to the rear end side of the sorting board (29).

As shown in FIGS. 1, 4, 6 and 7, the chaff sheave (26) comprises nine chaff sheave fins (5) between the left and right side walls (38) and (39) of the sorter (22).
The fin (57) has a constant interval in the front-rear direction and is horizontally laid in a front-low-back-high inclination posture, and the fin (57) has an inverted T-shaped cross section and extends in the left-right width direction. Fin body (58), left and right flanges (59) provided on the left and right end surfaces of the fin body (58), a rotation fulcrum shaft (60) which is two parallel axes provided on the outer surface of the flange (59), and a rotation amount. The fin (57) is composed of a regulating shaft (61).
This is also a resin molded product integrally formed of a synthetic resin such as polypropylene similarly to the sorter (22).

The left and right side walls (38) and (3) of the sorter (22)
9) Attach fins (57) and chaff sheave (26)
The fins (57) are provided as fin entrances (62) for inserting and removing the fins (57) from the side of the sorting board (22).
8) Established in (39). A metal plate (63) for closing the entrance (62) is detachably fixed to the outer surfaces of the left and right side walls (38) and (39) with bolts. This metal plate (6
3) are formed with nine rotation fulcrum holes (64) and nine arc-shaped long holes (65) centered on the holes (64), and the rotation of both ends of each fin (57) is formed. The fulcrum shaft (60) is fitted into the rotation fulcrum hole (64) of the metal plate (63), and the rotation control shafts (61) at both ends of each fin (57) are elongated holes (65) of the metal plate (63). 9 fins (57) between the left and right side walls (38) and (39) of the sorting board (22) turn around the fulcrum shaft (60) within the range of the elongated hole (65). It is suspended so that it can move.

The fin (57) has flanges (5) at both ends.
9) is located outside the inner surfaces of the left and right side walls (38) and (39) of the sorting board (22), and is provided at a position where a gap is provided between the outer surface of the flange (59) and the metal plate (63). The width of the fin body (58) and the width of the flange (5)
9) is formed, and the flange (59) is leaked to the gap between each shaft (60) (61) and the hole (64) (65) by dust or a crimping net (21) to be sorted. (22) While serving as a cover for preventing the falling of paddy (sorted material) from biting, the rotation resistance of each fin is reduced by a hole (60) between the rotation fulcrum shaft (60) and the metal plate (63). 64) Only the sliding contact resistance with the peripheral surface is set.

The rotation restricting shafts (61) of the fins (57) are connected to each other by a connecting rod (66) on the outer surface of the metal plate (63), and the second fin (57) from the left is turned to the left. By operating the angle adjusting arm (67) in which the upper end side of the metal plate (63) is connected to the fulcrum shaft (60) and the left rotation restricting shaft (61), all the fins (57) have the same inclined posture. And is integrally rotated (angle adjustment). In the adjustment position, the locking hole (68) at the other end of the arm (67) is fitted to a locking pin (69) fixed to the metal plate (63) and fixed by a fastening member (not shown). (67) is fixed to the left side of the sorting board (22) at the adjustment position, and the three locking pins (69) are provided so that the angle of the fin (57) can be adjusted in three stages. ing. An opening (70) for operating the arm is provided on the left side wall (53) of the machine case (41) so that the adjusting operation can be performed from the left outside of the threshing unit (4). This opening (70) is always closed by a lid (not shown).

Each fin (5) with respect to the sorting board (22)
7) The left and right positioning is performed by a washer (71) fitted to the end of each shaft (60) (61) and a split pin (not shown) inserted into a pin hole (72) at the shaft end, and the fin ( 5
The flange (59) of (7) is prevented from contacting the metal plate (63) or coming out of the inner surfaces of the left and right side walls (38) and (39) of the sorter (22). ) Can be securely held.

As shown in FIGS. 1, 5, 6, 7, 8, 9, 10, and 11, the left and right side walls (38) and (39) of the sorter (22) and the casing (41). Left and right side walls (53)
A seal (73) is provided to fill the gap with the seal (54), and a groove (7) for attaching the seal (73) is provided.
4) is formed over the entire length on the upper outer surface of the left and right side walls (38) and (39) of the sorting board (22).

The groove (74) has a groove upper wall (75) extending horizontally and integrally from the upper edges of the left and right side walls (38) and (39) of the sorting board (22), and a lower side of the groove upper wall (75). In parallel with this, the groove lower wall (76) extending integrally from the left and right side walls (38) and (39) forms the left and right side walls (38) and (3) of the sorter (22).
9) A cross-section is formed on the upper outer surface toward the outside.
The tip of the groove upper wall (75) is formed in a holding portion (75a) that is inclined upward. Five circular holes (77) penetrating the inner surfaces of the left and right side walls (38) and (39) are formed at substantially equal intervals in the vertical surface (74a) behind the groove (74).

A sealing member (73) is fitted into the groove (74) from the outside.
4) a plate-shaped seal body (79) extending diagonally upward from the outer upper corner of the fitting portion (78) in the fitted state;
The fitting portion (7) corresponding to the vertical surface (74a) at the back of the groove (74)
8) On one side surface, a shaft-shaped projection (80) having a circular cross section to be fitted into the hole (77), a truncated cone-shaped retaining part (81) provided at the tip of the projection (80), and a retaining part ( 81) The protruding portion (80) and the axial guide portion (82) having a circular cross section that protrudes coaxially from the tip are integrally formed of an elastic material such as synthetic rubber or synthetic resin having elasticity.

The sealing member (73) has the fitting portion (78) fitted into the groove (74) by about half from the outside thereof, and the tip of the guide portion (82) fits into the hole (77) deep in the groove (74). After that, the fitting portion (78) is pushed all the way into the groove (74), and the hole (7) is guided by the guide portion (82).
The retaining portion (81) is press-fitted into 7), and the guide portion (8) is inserted.
2) and the retaining portion (81) project into the inner surfaces of the left and right side walls (38) and (39) of the sorting machine (22) on the back side of the groove (74), and the projection (80) is fitted into the hole (77). , A seal member (73) is fitted and fixed in the groove (74), and the seal body (7) is fixed.
9) extends diagonally outward and upward continuously from the upper edges of the left and right side walls (38) and (39) of the sorting board (22),
It bends and adheres upward along the left and right side walls (54) and (53) of 1), and the left and right side walls (38) and (39) of the sorter (22).
And the gap between the left and right side walls (53) and (54) of the casing (41). This allows the sorting machine (22) to receive the leaked material from the crimping net (21) without leakage.

As is apparent from the above description, in a threshing machine in which the handling cylinder (6) and the swinging sorter (22) are installed in the threshing machine casing (41), the side walls (53) ( 5
4) and a sealing material (73) for closing the gap between the side walls (38) and (39) of the swing sorting machine (22) are fitted and fixed, and the swing sorting machine (22) and the sealing material (73) are fixed. It is connected and fixed without using a metal fixing tool, reduces damage due to aging of the material or excessive tightening, improves durability and simplifies the mounting structure of the seal material (73), and fits the seal material (73). The groove (74) to be merged is rocked by the sorting machine (2
2) formed on the side walls (53) and (54),
3) Simplification of the mounting structure and improvement of the operability of the swinging and sorting machine (22), and the retaining portion which is press-fitted into the hole (77) of the swinging and sorting machine (22) to be engaged and fixed. 8
1) is formed on the sealing material (73), the structure for fixing the sealing material (73) and the fixing operation are simplified, the number of components is reduced, and the manufacturing cost is reduced.

A guide portion (82) for inserting the retaining portion (81) into the hole (77) is connected to the retaining portion (81) to simplify the operation of engaging the retaining portion (81). A thick fitting portion (78) to be fixed to the swing sorter (22) and a threshing machine housing (78) 41)
The seal member (73) is formed with a thin seal body (79) for elastic contact with the seal member (73), and the thicker fitting portion (78) improves the connection strength between the oscillating sorter (22) and the seal material (73). And threshing machine housing (41) with thin seal body (79)
It is configured so as to be able to improve the obstruction between the and the sealing material (73).

As shown in FIG. 11, when the sealing material (73) is in a free state, the height of the fitting portion (78) is limited to the groove (7).
4) The length and width of the protrusion (80) are slightly longer than the diameter and length of the hole (77), and the lateral width of the fitting portion (78) is the horizontal groove of the groove (74). Upper and lower walls (75)
(76) It is formed to be slightly longer than the length, and when the sealing material (73) is fitted into the groove (74), the upper surface of the fitting portion (78) is formed by plastic deformation of the sealing material (73). 74), the lower surface of the fitting portion (78) is in close contact with the lower wall surface of the groove (74), the peripheral surface of the projection (80) is in close contact with the peripheral wall of the hole (77), and the stopper is secured. The bottom surface of the portion (81) is brought into close contact with the inner surfaces of the left and right side walls (38) and (39), and the inner surface of the fitting portion (78) is perpendicular to the groove (74).
To the fitting part (7) at the retaining part (81).
8) The force that draws the inward of the groove (74) into the groove (74)
To be given. Further, the upward inclination angle (α1) of the pressing part (75a) at the tip of the groove upper wall (75) is changed to the upward inclination angle (α2) of the seal body (79) of the sealing material (73).
It is made smaller (α1 <α2), and the base end of the seal main body (79) is forcibly pressed from above by the pressing part (75a), and the plastic deformation force of the seal main body (79) (the force to be straightened) ), The adhesion to the left and right side walls (53) and (54) of the machine housing (41) is further increased to improve the sealing performance, and the sorting board (22) is directed obliquely upward and forward. When moving, seal body (79)
The turning-up is prevented by the holding portion (75a).

[0025]

As is apparent from the above embodiment, the present invention provides a handling cylinder (6) and an oscillating sorter (22) with a threshing machine housing (4).
In the threshing machine installed in 1), the threshing machine housing (41)
The side walls (53) and (54) and the side wall (3) of the swing sorter (22)
8) A sealing material (73) for closing the gap with (39) is fitted.
The groove (74) to be merged is aligned with the side wall (3) of the swing sorter (22).
8) A hole (7) formed in (39) and provided inside the groove (74)
7) Sealing member (81) to be engaged and fixed to sealing material
(73) and the swing sorting made of synthetic resin.
The outer surface of the side wall (38) (39) of the board (22) faces outward.
And the groove (74) is opened by the threshing machine housing (4).
Sealing material (7) for closing the gap between the side walls (53) and (54) of 1) and the side walls (38) and (39) of the swing sorting machine (22).
3) is fitted into the groove (74), and is connected and fixed without using a metal fixing tool. Therefore, it is possible to reduce the deterioration due to aging of the material or damage due to excessive tightening, improve durability, and simplify the mounting structure of the sealing material (73). Since the groove (74) for fitting the sealing material (73) is formed in the side walls (53) and (54) of the swinging sorter (22), the sealing material (73) can be easily formed. The mounting structure can be simplified and the swinging sorter (22) can be easily attached and detached, and the retaining portion (81) engaged and fixed in the hole (77) provided inside the groove (74) can be easily formed. ) Is formed on the sealing material (73), so that the fixing structure and the fixing operation of the sealing material (73) can be easily simplified, and the number of components and the manufacturing cost can be easily reduced. You can do it.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of an oscillating sorter.

FIG. 2 is an overall side view of the combine.

FIG. 3 is an overall plan view of the combine.

FIG. 4 is a sectional side view of the threshing machine.

FIG. 5 is a sectional front view of the threshing machine.

FIG. 6 is a perspective view of a swing sorter.

FIG. 7 is a side view of a swing sorting machine.

FIG. 8 is a front view of a swing sorting machine.

FIG. 9 is a rear view of the swing sorter.

FIG. 10 is a sectional view of a main part of the swing sorting machine.

FIG. 11 is an enlarged explanatory view of a seal portion.

[Explanation of symbols]

 (6) Handling cylinder (22) Swing sorting machine (38) (39) Side wall of swing sorting machine (41) Threshing machine case (53) (54) Threshing machine case (73) Seal material (74) Groove (77) Hole (81) Retaining part

Claims (1)

(57) [Claims] 1. A threshing machine in which a handling cylinder (6) and a swinging sorter (22) are installed in a threshing machine case (41), and swings with side walls (53) (54) of the threshing machine case (41). Sorting board (22)
The rocking sorter (22) is provided with a groove (74) in which a sealing material (73) for closing a gap between the side walls (38) and (39) is fitted.
Formed in the side wall (38) (39) of the groove (74) set therein
The seal member (73) is formed with a retaining portion (81) for engaging and fixing the hole (77).
The outer surfaces of the side walls (38) and (39) of the swing sorter (22)
A threshing machine characterized in that the groove (74) is opened toward the side .