JPH0325550Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] This invention relates to harvesting machines such as reaping and threshing machines (combines) and mobile threshing machines (harvesters). This invention relates to a grain lifting device for a harvester that lifts grains into a grain tank.

[Prior art] Conventional mobile threshing machines (harvesters) are not equipped with a grain tank for storing grain after threshing, so when threshing is carried out while traveling, the grain bag becomes full. Since grains are left in the field at the bagging position before moving on to the next threshing operation, grain bags filled with grains are scattered here and there in the field after traveling. Therefore, there was a problem in that after the work was completed, the grain bags scattered around the field had to be collected separately.

A reaping and threshing machine (combiner) is used as a harvesting machine to solve this problem, and a grain tank is mounted on the machine body separately from the threshing machine. Not only does it require two grain lifting devices, one for hoisting grain into a grain tank and the other for discharging grain from the grain tank, but it also requires two separate grain lifting devices. The problem was that the size of the grain tank made the aircraft larger.

Further, a grain tank discharge device for a combine harvester is implemented, which is configured such that a discharge tube connected to a discharge spiral provided at the lower part of the grain tank and containing a built-in grain lifting spiral can be swung around the lower end of the discharge spiral. Kimiaki
This is proposed by Publication No. 56-27696.

However, this device requires two spiral feeding devices, a grain lifting tube and a discharge tube, to feed grain to the grain tank, which increases the size of the device and increases manufacturing costs. It was hot.

[Purpose of the invention] The present invention was devised in view of the above-mentioned conventional circumstances and to solve these problems. It is an object of the present invention to provide a grain lifting device in a harvester which can also be used for discharging grains from a grain tank.

[Structure of the invention] A grain lifting device in a harvester according to the present invention for achieving the above object includes a grain tank provided above a threshing machine having a first spiral, and a grain tank provided at a transfer end of the first spiral. The connected first grain lifting device is selectively tilted around the axis of the first spiral into a lifting position in an upright position for supplying grains to the grain tank and a discharging position in a lying down position. In addition to being freely fixed,
The grain discharge spiral provided in the grain tank and the guide case surrounding the transfer end of the first spiral are communicated by a discharge tub, and at the discharge position of the first grain lifting device, grains are The grain discharge spiral provided in the tank is rotated, and the stored grains in the grain tank are discharged by the first grain lifting device via the first spiral.

[Example of practical example] Hereinafter, drawings showing the present invention as an example of practical example will be described.

As shown in FIG. 1, the mobile threshing machine 1 is run by a traveling device 4 on which a pair of left and right crawlers 3, 3 are wound around the lower part of the machine base 2. A threshing machine 5 having a handling trunk shaft 8 disposed in a direction perpendicular to the direction of movement of the machine body 2 is disposed, and an engine and a transmission mechanism connected to this engine are installed behind the threshing machine 5. A built-in cover 6 is provided, and an operating handle 7 that projects rearward is fixed to the rear surface of the cover 6, and a grain bag hanging device 10 is provided on the right side of the rear surface of the cover 6. , this grain bag hanging device 1
0 is as follows.

That is, as shown in FIG. 4, a pair of left and right bag hangers 11, 11 extending rearward are fixed to the bracket 9 fixed to the cover 6, and upper and lower bag hangers 11, 11 are located at the center of the base end of these bag hangers 11, 11. A support column 12 in the direction is fixed, and a downwardly inclined grain discharge tube 13 is fixed to the upper end of this column 12. Above this grain discharge tube 13, a guide portion 1 having a U-shape in rear view is fixed.
A bag holder 15 is provided at the rear of the machine base 2 below the left and right pair of bag hangers 11, 11, and a bag holder 15 that projects rearward is provided, and the grain bag 16 is attached to the left and right pair of bag hangers 11. , 11, grain bag 16
It can be hung by inserting the eyelets provided on both the left and right ends of the handle.

The thresher 5 is provided with a handling barrel chamber 20 as shown in FIG. 7, and this handling barrel chamber 20 is provided with a handling barrel 17 fixed to the aforementioned handling barrel shaft 8. A large number of handling teeth 18 are implanted around the barrel 17, and a handling barrel 19 is stretched over a predetermined range below the handling barrel 17 with a predetermined distance from the tip of the handling teeth 18. At the rear of this handling trunk chamber 20 is a handling trunk shaft 8.
A handling port 21 is provided which is opened in the direction along the axial direction of the feed chain 21 , and an upper feed chain 22 is disposed outside the handling port 21 along the handling port 21 . Opposing lower pinching rails 23 are arranged along the handling opening 21.

The handling barrel chamber 20 of the threshing machine 5 is communicated with a dust exhaust chamber 25 on the front side through a dust inlet 24, and this dust exhaust chamber 25 includes a suction impeller chamber 27 for storing a suction impeller 26. A suction port 28 is opened in the center of the suction blade chamber 27, and a suction blade axle 29 is rotatably supported in an axial direction parallel to the axis of the handling barrel shaft 8. A suction blade wheel 26 is fixed to the blade axle 29, and this suction blade wheel chamber 2
The discharge port 30 of No. 7 is oriented obliquely downward to the front.
Further, an upper recess 31 located above the dust inlet 24 is formed between the handling barrel chamber 20 and the dust evacuation chamber 25.

At the rear of the handling net 19 of the handling barrel chamber 20, there is provided a pressure-type main winnowing wheel (not shown), and the main winch wheel below the handling net 19 and the suction impeller 26 of the dust removal chamber 25 are provided. A main sorting air passage 33 is formed between the two and the first spiral 32, and the first spiral 32 is arranged in the axial direction parallel to the axial direction of the handling barrel shaft 8. It is fixed to the first helical shaft 34.

As shown in FIG. 5, the first grain frying device 55 includes a connecting case 38 connected to the transfer end of the first spiral 32 described above, and a first grain frying device 55 integrally connected to the connecting case 38. A first grain frying spiral shaft 43 having a grain frying spiral 44, a first grain frying spiral cylinder 45 surrounding these, and an adjusting cylinder 51 provided above the first grain frying spiral cylinder 45. The details are as follows.

That is, a guide case 36 surrounding the transfer end of the first helix 32 is fixed to the outside of the machine wall 35 of the threshing machine 5, and a guide tube portion 37 is formed outside the guide case 36. A fitting hole 39 of a connecting case 38 is fitted into this guide cylinder portion 37.
This connection case 38 is provided so that its position can be changed and fixed in the left and right directions around the axis X-X of the first helical shaft by tightening and loosening the mounting bolts 50.
The end of the first helical shaft 33 is a guide case 36.
It penetrates through and is supported within the connection case 38. A bevel gear 39 is fixed to the shaft end of this first helical shaft 33, and this bevel gear 39 is attached to a vertical shaft 4 supported vertically within a connecting case 38.
It is designed to mesh with a bevel gear 41 which is fixed at zero, and furthermore, a drive sprocket 42 is fixed to the lower end of the vertical shaft 40.

The connection case 38 has the axis X-X of the first helical shaft.
The lower part of the first grain lifting helical shaft 43 is disposed in the vertical direction orthogonal to the first grain lifting spiral shaft 43. 44 is fixed, and the lower end of the first grain lifting spiral cylinder 45 surrounding the first grain lifting spiral 44 is fixed to the connecting case 38. The grain spiral shaft 43 is driven and rotated from the first spiral shaft 34 by a transmission chain 47 wound around the drive sprocket 42 and a passive sprocket 46 fixed to the lower end thereof.

Above the first grain frying spiral cylinder 45, there is a discharge port 4.
8 is opened, and the upper end of the first grain lifting helical shaft 43 is pivotally supported, and a jump blade 48 is attached to the first grain lifting helical shaft 43 facing the discharge port 49. It is connected to and fixed to the grain spiral 44, and furthermore, above the first grain lifting spiral tube 45, it is movable and fixed within a predetermined angular range around the axis of the first grain lifting spiral shaft 43. An adjustment cylinder 51 is fitted into the adjustment cylinder 51, and a discharge hole 52 is opened in the adjustment cylinder 51. In addition, elongated holes 53, 53 around the axis of the first grain lifting helical shaft 43 are provided in the top plate portion of the adjustment cylinder 51, extending at a predetermined angle. Bolts 54, 54 protruding from the top plate portion of 45 and into which the elongated holes 53, 53 are fitted are fixed, and a flat washer is fitted into each bolt 54, and a wing nut is screwed into each bolt 54.

As shown in FIGS. 2 and 3, the inclination angle K of the discharge port 49 that opens above the first grain lifting spiral cylinder 45 with respect to the axis X-X of the first helical shaft is approximately 45.
The discharge hole 52 of the adjustment cylinder 51, which is fitted above the first grain lifting spiral cylinder 45, is opened so that the center angle M is approximately 115 degrees. The tube 51 is designed to rotate over a range of about 75 degrees.

Further, above the threshing machine 5, a grain tank 56 capable of storing the first grain is disposed, and the upper part of the grain tank 56 is connected to the first grain lifting device 55. A receiving port corresponding to the side discharge port 49 is formed in an open auxiliary tank 57 , and a bottom plate 58 is provided at the bottom of the grain tank 56 . It is designed to be removably fixed.

A grain discharge spiral 59 is disposed approximately in the center of the bottom plate 58 of the grain tank 56 in an axial direction parallel to the axial direction of the first helical shaft 34, and a grain discharge spiral 59 is fixed thereto. A grain discharge spiral shaft 60 is rotatably supported, and the transfer end portion of the grain discharge spiral 56 is surrounded by a guide trough 61 that protrudes furthest toward the grain lifting device 55 than the width of the grain tank 56. This guide gutter 61 and the communication hole 62 provided in the guide case 36 described above are connected by a vertical discharge gutter 63, and the grain discharge spiral shaft 6
0 penetrates this guide gutter 61 and extends outward,
A discharge spiral pulley 64 is fixed to this extended end. A V-belt 66 is wound between the discharge helical pulley 64 of the grain discharge helical shaft 60 and a drive pulley 65 fixed to the handling barrel shaft 8.
A tension clutch 67 is provided oppositely to each other.
Although not shown, a shutter that can be opened and closed is provided above the grain discharge spiral 59.

This tension clutch 67 and an operating lever 68 provided on the side surface of the grain discharge tube 13 are connected by a Bowden wire 69. In addition, a fitting 70 is fixed to the middle part of the first grain lifting cylinder 45, and a fixing metal 71 that fixes this fitting 70 is connected to the grain lifting position Y. Grain tank 5
6 side wall and the upper part of the cover 6 at the discharge position Z, and as shown in FIG. A grain culm supply stand 72 is disposed which can be freely switched between the two positions, and a grain culm supply table 72 is provided on the terminal end side of the handling cylinder 17, which can be freely switched between a folded position when not working and an extended position when working using the end side of the pinching rail 23 as a fulcrum. A culm conveying device 73 is provided. When the culm transport device 73 is in the folded position, the grain lifting device 55 can be tilted to the most laid-down position Z.

In the present invention configured in this manner, the grain stems supplied to the starting end side of the pinching rail 23 are transferred to the terminal end side while the grain stem is held between the pinching rail 23 and the feed chain 22. The tip side is the handling barrel 17
The threshed culm is threshed by the culm, and the threshed culm is transferred to a culm conveying device 73 at the end of the pinch rail 23 and carried out of the machine. The grains being threshed by the handling cylinder 17 leak through the handling net 19 and pass through the main sorting air passage 33, where they are sorted and fall into the first spiral gutter 32a and collected. The dust from the dust outlet 25 inside the dust exhaust chamber 25 is caused by the wind from the main sorting air passage 33.
The waste is re-sorted together with the waste from the engine, and the debris is discharged to the outside of the aircraft via the suction impeller chamber 27.

Then, as shown in FIG. 1, the first spiral 32
The first grain lifting device 55 connected to the transfer end of the
A grain hoisting position Y in an upright position where the first grain is hoisted into the grain tank 56 above the threshing machine 5 centering on the axis X-X of the first helix, and a discharge position Z in a lying down position. At the grain lifting position Y of the first grain lifting device 55, the shutter above the grain discharge spiral 59 is in the closed state and the first spiral gutter 32a is in a closed state. The grains in the grain tank 5
A predetermined amount can be stored in 6, and
When the first grain lifting device 55 is set to the discharging position Z in the laid down position, the first grain lifting device 45 is the first grain lifting device 1
The grain discharge tube 13 is guided by a U-shaped guide portion 14 provided at the grain discharge tube 13, and the tension clutch 67 tensions the V-belt 66 by operating an operating lever 68 provided on the side surface of the grain discharge tube 13. By opening the shutter after rotating the grain discharge spiral 59 in the grain tank 56, the grains stored in the grain tank 56 are passed through the discharge gutter 63 and the grains are discharged from the first spiral 32.
The first grain lifting device 55 feeds the first grain into the grain tank 56 by supplying the first grain to the first grain lifting device 55.
The grains can be discharged from 6. This allows the bagging work to be carried out all at once at a predetermined location, eliminating the need to leave full grain bags in the field each time, as in conventional mobile threshing machines. This solves the problem of having to collect grain bags scattered around the field after the work is completed.

In addition, a grain tank 56 provided at the top of the threshing machine 5
Although the first grain frying device 55 is for frying the first grain at the same time, the first grain frying device 55 can also be used for discharging grains from the grain tank 56. , unlike the conventional reaping and threshing machine equipped with a grain tank, it requires two grain lifting devices, one for lifting the first grain and one for discharging the grain. The problem of increasing size can be solved.

The adjusting cylinder 51 is adjusted to the position shown in FIG. 2 at the grain lifting position Y, and to the position shown in FIG. 3 at the discharge position Z. There is an advantage that the grain device 55 can be used for both the grain lifting position Y and the grain discharging position Z, whose discharge directions differ by 90 degrees. In addition, in the upright position Y shown in FIG. 2, it is desirable to provide a removable discharge port cover 74 on the side surface of the adjustable cylinder 51 on the collapsed side.

In addition, as shown in FIG. 7, the grain ejection spiral 59
A spiral bottom plate 59a provided below is formed into a substantially semicircular shape and protrudes below the bottom plate 58, and this protruding spiral bottom plate 59a is formed between the handling barrel chamber 20 and the dust removal chamber 25 of the threshing machine 5. By sinking into the upper recess 31, the height of the grain tank 56 disposed above the threshing machine 5 can be lowered by the height of the spiral bottom plate 59a inserted into the upper recess 31. There are advantages.

[Effect of the invention] The grain lifting device in the harvester according to the present invention includes a grain tank provided above the threshing machine having the first spiral, and a first grain tank connected to the transfer end of the first spiral. The grain lifting device is provided so as to be selectively tiltable and fixed at a lifting position in an upright position for supplying grains to the grain tank and in a discharging position in a collapsed position around the axis of the first helix; A discharge gutter is provided between the grain discharge spiral provided in the grain tank and a guide case surrounding the transfer end of the first spiral, so that at the discharge position of the first grain lifting device, the grain is in the grain tank. The provided grain discharge spiral is rotated so that the grains are discharged through the stored grains in the grain tank and by the first grain lifting device.

Therefore, the first grain hoisting device is placed at an upright hoisting position centered on the axis of the first helix and supplies the first grain to the grain tank installed above the threshing machine, and at the first helical axis. It can be tilted to the ejecting position where it is laid down around the center.

At the grain lifting position of the first grain lifting device, the grains in the first spiral gutter can be stored in the grain tank. By rotating the grain discharge spiral in the grain tank, the grains in the grain tank can be discharged via the first mouth spiral using the first grain lifting device.

In this way, by using the first grain lifting device as a device for discharging grains from the grain tank, bagging operations can be carried out all at once at a predetermined position in the field.

On the other hand, in the case of a conventional mobile threshing machine, the full grain bags are left in the field each time, and after the work is completed, the grain bags scattered around the field are collected. However, in the present invention, such work is completely unnecessary.

The device according to the present invention uses the first grain lifting spiral as the original first grain lifting spiral and also as a discharge spiral for discharging grains from the grain tank. This simplifies the device.
In addition, the problem of having to install the grain tank separately and increasing the size of the aircraft can also be solved at the same time.

[Brief explanation of the drawing]

The drawing shows an example of the present invention, and
Figure 1 is an overall side view of the mobile thresher, Figure 2 is the
AA arrow sectional view in the figure, Figure 3 is B-B in Figure 1
Fig. 4 is a rear view of the movable threshing machine, Fig.
The figure is a rear vertical sectional view of the first grain lifting device, and FIG. 6 is an exploded perspective view of the upper part of the first grain lifting device.
FIG. 7 is an overall side view of the mobile threshing machine, broken away to show the main parts. 5... Threshing machine, 20... Handling barrel room, 25... Dust removal room, 3
DESCRIPTION OF SYMBOLS 1... Upper recessed part, 32... First mouth spiral, 36... Guide case, 55... First grain frying device, 56... Grain tank, 59... Grain discharge spiral, 61... Guide gutter, 63...
Discharge gutter, X-X...axis of the first spiral, Y...grain frying position, Z...discharge position.

Claims (1)

[Scope of utility model registration request] A grain tank 56 provided above the threshing machine 5 having the first helix 32 and a first grain lifting device 55 connected to the transfer end of the first helix 32 are connected to The grains provided in the grain tank 56 can be selectively tilted and fixed at a lifting position in an upright position for supplying grains to the grain tank 56 about the shaft center and a discharge position in a lying down position. A discharge tub 63 communicates between the discharge spiral 59 and the guide case 36 surrounding the transfer end of the first spiral 32, and is provided in the grain tank 56 at the discharge position of the first grain lifting device 55. The grain discharge spiral 59 is rotated to remove the stored grains in the grain tank 56 from the top spiral
A grain lifting device in a harvester configured to discharge grains through the first grain lifting device 55 via the grain lifting device 55.