JPH0577568B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to improvements to grain tank augers in harvesters.

[Prior Art] As shown in Fig. 1, a grain tank auger A in a harvesting machine is used when a grain tank 1 mounted on a body a of a harvesting machine (combiner) is filled with harvested grains. This is a grain feeding device for discharging grains that is installed in the grain tank 1 in order to transfer the grains collected in the grain tank 1 to a transport vehicle that is placed in the field or on a farm road around the field. , a cross-feeding auger 2 for transporting grains from the bottom of the inner cavity of the grain tank 1, a vertically-feeding auger 3 for transporting the grains upward, and a terminal end of the cross-feeding auger 2. and a connecting cylindrical portion 4 that connects the lower end of the vertical feed auger 3.

At this connection part, a bearing support part 50 that projects upwardly in a cylindrical shape on the upper surface side is usually provided in the connection cylinder part 4 that connects the lower end of the vertical feed auger 3 with the terminal end of the lateral feed auger 2. A bearing support part 51 is provided on one side of the bearing support part 51 which projects laterally in the form of a protrusion, and a gear box 5 housing the transmission gears G and G is disposed therein. The lower end shaft end of the auger shaft 31a of the vertical feed auger 3 is rotatably supported on the bearing support part 50, and the auger shaft of the lateral feed auger 2 is mounted on the bearing support part 51 which protrudes cylindrically from the side surface of the gear box 5. 21a
The auger shaft 3
1a and the auger shaft 21a are configured to be electrically connected by a transmission gear G stored in the gear box 5.

In addition, as described in Japanese Utility Model Application No. 57-9274, this connection part is made by inserting the terminal end of the cross-feeding auger into the upper surface side of the gearbox in the connecting cylinder part, and vertically connecting the terminal end of the cross-feeding auger. The lower end of the feed auger is in a state where it crosses in side view,
The shaft end on the terminal side of the auger shaft of this cross-feeding auger is guided to the side of the gear box at the bottom of the connecting cylinder through a transmission mechanism that bypasses the side of the connecting cylinder, and the transmission is carried out inside the gear box. A known method is to transmit power to the lower end of the auger shaft of a vertically feeding auger via a gear.

[Problems to be Solved by the Invention] The grain tank auger in the above-mentioned harvester has a cross-feeding auger, and in the case of the former, the conduction between the auger shaft of the horizontal-feeding auger and the auger shaft of the vertical-feeding auger is simple. However, the grains sent by the horizontal feed auger tend to accumulate and stay on the top surface of the gearbox, which obstructs the grain lifting action of the vertical feed auger. There's a problem.

In the latter case, the terminal end of the horizontal feed auger and the lower end of the vertical feed auger are parallel to each other in plan view inside the connecting cylinder, so the connecting cylinder is formed to have a large diameter. In addition, in order to conduct the transmission between the auger shaft of the horizontal feed auger and the auger shaft of the vertical feed auger, a transmission mechanism that bypasses the side of the connection cylinder is required, so the overall volume of the connection part is increase, and
There is a problem in that the structure becomes complicated and manufacturing becomes troublesome.
Furthermore, the grains fed into the connecting tube by the cross-feeding auger are lifted upward by the vertical feed auger located on the side of the cross-feeding auger in plan view. Within the department,
The horizontal flow of grains caused by the cross-feed auger and the vertical flow of grains caused by the vertical feed auger are located adjacent to each other in plan view, and the cross-feed auger and the vertical feed auger There is a problem in that the respective grain feeding operations interfere with each other, reducing the efficiency of each grain feeding operation, and making it impossible to obtain an efficient grain lifting operation.

[Objective] The present invention has been made in order to solve these problems occurring in the conventional means. The vertical feeding auger efficiently lifts grains fed by the horizontal feeding auger while preventing interference between grain feeding operations of the horizontal feeding auger and the vertical feeding auger. The aim is to provide new means to enable

[Means for Solving the Problems] In the present invention, as a means for achieving this object, there is provided a cross-feeding auger in which spiral grain feeding blades are provided on the outer peripheral surface of an auger shaft with the axial direction being the transverse direction. The upper surface of the connecting cylinder connects the terminal end side in the conveying direction of the vertical feeding auger and the lower end side of the vertical feeding auger, which has a spiral grain feeding blade for frying grain on the outer peripheral surface of the auger shaft with the axial direction being the vertical direction. The gear box is provided with a bearing support portion projecting upward in a cylindrical shape on one side, a bearing support portion projecting in a cylindrical shape toward the side on one side, and a gear box housing a transmission gear therein. The terminal end of the auger shaft of the horizontal feed auger is supported on the bearing support on one side, and the lower end of the auger shaft of the vertical feed auger is supported on the bearing support on the top side of the gearbox. In the grain tank auger of the harvester, the auger shaft and the auger shaft are rotatably supported and the auger shaft is transmitted through a transmission gear housed in the gear box, and the auger shaft of the vertical feed auger has an auger shaft on the outer peripheral surface of the auger shaft. A grain feeding blade for grain frying is provided at the lower end side, and projects diagonally downward from the outer peripheral surface of the lower end of the auger shaft toward the side of the bearing support that pivotally supports the lower end of the auger shaft. The present invention proposes a grain tank auger for a harvester, characterized in that a downwardly extending grain feeding blade is provided whose lower end edge rotates a peripheral portion of the bearing support portion along the upper surface of the gearbox.

[Example] Next, an example of implementation will be described in detail with reference to the drawings. In addition,
The same reference numerals in the drawings shall be used for constituent members having the same effect as those in the prior art.

Figure 3 shows Glentank Auger A according to the present invention.
It shows a longitudinal side view of the main part of the

In the figure, 1 is the body a of the harvesting machine (Figure 1)
A part of the tank is shown by chain lines.

Reference numeral 2 denotes a cross-feeding auger for carrying out the grains that can be accumulated in the grain tank 1. The terminal end of the conveying cylinder 20 in the conveying direction protrudes from the machine wall of the grain tank 1, and the auger 21 is connected to the conveying cylinder 20. protrudes further from the end.

Reference numeral 4 denotes a connecting cylinder connected to the terminal end of the transport cylinder 20, which is formed in an elbow shape, and has an inner diameter larger than that of the transport cylinder 20. A gearbox 5 is installed at the inclined bottom inside the connecting cylinder 4, and a bearing support part 5 is provided so as to protrude in a cylindrical shape from the side surface of the gearbox 5.
1 is the auger shaft 21a of the horizontal feed auger 21.
The shaft end on the terminal side of the auger shaft 21a is pivotally supported, and the part of the auger shaft 21a facing inside the connecting cylinder part 4 has a
The spiral grain feeding blade 2 is formed to have a larger diameter than the spiral grain feeding blade 21b wrapped around the outer peripheral surface of the auger shaft 21a.
1c is installed.

3 is a vertical feed auger whose lower end is connected to the upper opening 40 of the connecting cylinder portion 4;
The grain lifting cylinder 30 that accommodates the connecting cylinder part 4 has an inner diameter that is
It is formed to have a smaller diameter than the inner diameter of the upper opening 40 of. The lower end of the grain lifting cylinder 30 is fitted into the upper opening 40 so as to freely turn around the axis of the auger shaft 21a of the auger 31. The auger 31
The shaft end 80 on the lower end side of the auger shaft 31a is rotatably supported by a bearing support part 50 that protrudes cylindrically from the upper surface side of the gear box 5 in the connection cylinder part 4, and is mounted in the gear box 5. The power is transmitted to the shaft end of the auger shaft 21a of the lateral feed auger 2 via a transmission gear (not shown) provided.

Reference numeral 6 denotes a guide cylinder installed at the lower end of the grain lifting cylinder 30, and its inner surface is formed into a reverse funnel-shaped guide surface 6a whose inner diameter gradually expands downward. And the funnel-shaped guide surface 6 in the opposite direction
a is formed so that the inner diameter on the upper end side substantially matches the inner diameter of the grain lifting cylinder 30, and the lower end side substantially matches the inner diameter of the upper opening 40 of the connecting cylinder part 4, and the inner diameter of the grain lifting cylinder 30, respectively. and the upper opening 40 of the connecting cylinder part 4
As a result, the upper opening 40 of the connecting cylinder 4 formed with a large diameter connects to the lower end of the grain frying cylinder 30 through the inner surface 6a of the funnel-shaped guide cylinder 6 in the opposite direction. It is ready to connect.

In this embodiment, the guide cylinder part 6 is located at the tip of a discharge cylinder 32 (FIG. 1) that is installed at the upper end of the grain lifting cylinder 30 by rotating the grain lifting cylinder 30 with respect to the connecting cylinder part 4. In order to change the direction, the body of the rotating drive gear 70 attached to the grain lifting cylinder 30 is used, but if it is formed separately from the gear 70 and attached to the lower end of the grain lifting cylinder 30, It may be formed as appropriate, such as when it is installed at the lower end of the grain cylinder 30 integrally and continuously with the grain cylinder 30.

Reference numeral 8 denotes a grain feeding blade for frying grains, which is located in the inner cavity of the above-mentioned connecting cylinder portion 4 on the lower end side of the spiral grain feeding blade 31b that is wound around the outer peripheral surface of the auger shaft 31a of the vertical feeding auger 3. Shaft end 8 on the lower end side of the shaft 31a
It is formed integrally with the shaft end 80 on the outer circumferential surface of the shaft. The grain feeding blade 8 is a perfect circular disk as shown in FIG. 4 when viewed from the direction of its axis w. And, the axial center line w of it is the auger shaft 31a
The grain feeding blade 8 is attached to the outer circumferential surface of the shaft end portion 80 on the lower end side of the auger shaft 31a in an oblique position as shown in FIG. is eccentric with respect to the axis p of the auger shaft 31a so that its axis o is closer to the downwardly inclined side of the grain feeding blade 8, which is installed obliquely, in plan view. This means that at the end of the downward slope,
It has a large diameter R that is twice the distance from the axial center line y of the auger shaft 31a to the lower end edge 8a of the grain feeding blade 8. Each auger shaft 31 has a small diameter r that is twice the distance to the upper edge 8b of the blade 8.
It is designed to rotate around the axis y of point a.

Furthermore, the lower end of the grain feeding blade 8 is connected to the vertical feeding auger 3 as shown in FIG.
The bearing support part 5 on the upper surface side of the gear box 5 which pivotally supports the shaft end part 80 on the lower end side of the auger shaft 31a.
The downwardly extending grain feeding blade 8c extends downward on the side of the grain feeding blade 8c, whereby the downwardly extending portion rotates the side peripheral portion of the bearing support portion 50 along the upper surface of the gear box 5. is formed. This downward extending grain feeding blade 8c is connected to the gearbox 5 described above.
The grains accumulated on the upper surface of the gear box 5, which is located one step below, are dredged up around the bearing support part 50.

In the illustrated embodiment, the grain feeding blade 8 is formed integrally and continuously with the shaft end portion 80 on the lower end side of the auger shaft 31a, but is formed separately from the shaft end portion 80 on the lower end side. The shaft end portion 8 on the lower end side
In some cases, the auger shaft 31a may be fitted onto the circumferential surface of the auger shaft 31a, and furthermore, the auger shaft 31a may be rotatably supported on the connecting cylinder portion 4 and driven and rotated through a transmission path separate from the auger shaft 31a. .

In addition, in the drawings, 71 is the above-mentioned grain lifting cylinder 30.
A transmission gear that drives and rotates a gear 70 for swing drive, and a bracket 7 installed on the machine wall of the grain tank 1.
A rack 75, which is attached to the tip of a support shaft 73 that is pivotally supported by the support shaft 73 and which meshes with a pinion 74 fitted in the middle of the support shaft 73, moves up and down by the operation of a hydraulic cylinder 76 (Fig. 2). The gear 70 is driven and rotated via the pinion 74 to rotate the gear 70 described above.

[Effects of the Invention] The grain tank auger in the harvester according to the present invention configured as described above has the following effects.

A gearbox in which the terminal end side of the horizontal feed auger 2 that carries out the grains from the grain tank 1 and the lower end side of the vertical feed auger 3 that lifts the grains carried out thereby are arranged in the connecting cylindrical part 4. The transmission mechanism is simplified by transmitting power through a transmission gear G that is rotatably supported by a bearing support part 51 provided on the side surface of the transmission gear 5 and a bearing support part 50 provided on the top surface side of the transmission gear G and housed in the gearbox 5. and interferes with the flow of grains fed into the connecting cylinder part 4 by the horizontal feed auger 2 and the flow of grains fed into the connecting cylinder part 4 and lifted by the vertical feed auger 3. In such a state that grains are fed into the upper surface of the gear box 5 by the horizontal feed auger 2, the downwardly extending grain feed blade 8c provided on the shaft end 80 on the lower end side of the vertical feed auger 3 is moved by a bearing. Since the peripheral surface of the support part 50 is rotated along the upper surface of the gear box 5 to dredge, the auger shaft 21a of the horizontal feed auger 2 and the auger shaft 31 of the vertical feed auger 3
The grain feeding operation of the cross-feed auger 2 and the vertical feed auger 3 is prevented from interfering with each other by simplifying the conduction with the a and having a small volume structure, and by preventing interference between the grain feeding operations of the cross-feed auger 2 and the vertical feed auger 3. The grains being fed can be efficiently transported by the vertical feeding auger 3.

[Brief explanation of the drawing]

Fig. 1 is an overall schematic perspective view of the conventional means, Fig. 2 is a partially cutaway side view of the main parts of the same, Fig. 3 is a longitudinal sectional side view of the main parts of the apparatus according to the embodiment of the present invention, and Fig. 4 5 is an explanatory view of the same grain feeding blade before assembly, and FIG. 5 is a cross-sectional plan view of the main part of the same. Explanation of drawing symbols, A...Glentank, a...
Aircraft, 1...Glen tank, 2...Transverse feed auger, 20...Transport tube, 21...Auger, 21a
... Auger shaft, 21b, 21c ... Spiral grain feeding blade, 3 ... Vertical feeding auger, 30 ... Grain lifting tube, 3
1...Auger shaft, 31a...Auger shaft, 31
b...Spiral grain feeding blade, 32...Discharge tube, 4...Connection cylinder part, 40...Upper opening, 5...Gear box, 50, 51...Bearing support part, 6...Guide cylinder part, 6a... Guide surface, 70... Gear, 71... Transmission gear, 72... Bracket, 73... Support shaft, 7
4... Pinion, 75... Rack, 76... Hydraulic cylinder, 8... Grain feeding blade, 8a... Upper edge, 8b
...Lower edge, 8c...Downward extending grain feeding blade, 80...
Lower end side shaft end, w, y...Axis center line, o, p...
Axial center, R...large diameter, r...small diameter.

Claims (1)

[Claims] 1. The terminal end side in the conveying direction of the cross-feeding auger 2, which has spiral grain feeding blades 21b, 21c on the outer peripheral surface of the auger shaft 21a with the axial direction as the horizontal direction, and the outer periphery of the auger shaft 31a with the axial direction as the vertical direction. A bearing support part 50 that protrudes upward in a cylindrical shape on the upper surface side in the connecting cylinder part 4 that connects the lower end side of the vertical feeding auger 3 whose surface is provided with a spiral grain feeding blade 31b for frying grains.
A gear box 5 is disposed, which is provided with a bearing support part 51 that protrudes laterally in a cylindrical shape on one side, and houses a transmission gear G therein. 51 pivotally supports the terminal end of the auger shaft 21a of the transverse feed auger 2, and the bearing support portion 5 on the upper surface side of the gear box 5
The lower shaft end of the auger shaft 31a of the vertical feed auger 3 is pivotally supported at 0, and the auger shaft 21a and the auger shaft 31a are transmitted through a transmission gear G stored in the gear box 5. In the grain tank auger of the machine, the auger shaft 31a of the vertical feeding auger 3 has grain feeding blades 31 for lifting grain provided on the outer peripheral surface of the auger shaft 31a.
At the lower end side of the auger shaft 31a, a lower end protrudes obliquely from the outer circumferential surface of the lower end of the auger shaft 31a toward the side of the bearing support 50 that pivotally supports the lower end of the auger shaft 31a. A grain tank auger for a harvester, characterized in that a downwardly extending grain feeding blade 8c is provided around the bearing support portion 50 and rotates along the upper surface of the gear box 5.