JPH09252639A - Discharging mechanism driving device for grain tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a discharging mechanism driving device for a grain tank, which easily turns the grain tank outside without individually providing a decelerating mechanism. SOLUTION: A transmission part connecting a driving mechanism 39 driving a discharging mechanism provided for the grain tank 9 for storing threshed grains to a driving force output part 31 provided at the side of a device body is made as a gear transmission mechanism 41 fitted in the state of housing the grain tank 9 and separated due to the turning of the grain tank 9 to the outside of the device body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge device driving device for a grain tank, which is provided in a combine and temporarily stores threshered grains.

[0002]

2. Description of the Related Art Conventional combine harvesters have a grain tank on the right side of a threshing unit for temporarily storing the grains threshed by the threshing unit. The Glen tank is provided with a horizontal helix at the bottom corner, and a vertical helix is erected at the end of the horizontal helix. By rotating the horizontal helix and the vertical helix, the inside of the Glen tank is rotated. It was general that the grains of the above can be discharged from a discharge auger cylinder provided above the Glen tank via a horizontal spiral and a vertical spiral. On the other hand, some Glen tanks have a mechanism in which a vertical spiral case that covers the vertical spiral is horizontally rotated to the outside of the machine to open a space for maintenance on the right side of the threshing section.

[0003]

However, the Glen tank is generally one in which the driving force is obtained from the airframe side by belt transmission in order to drive the horizontal helix and the vertical helix. In the structure in which the tank rotates horizontally, it is necessary to remove the belt for transmitting the driving force once and then rotate it when rotating, which is a problem that the Glen tank cannot be easily rotated. In addition, some of the structures have a structure in which the driving force is transmitted from the machine side to a lateral spiral through a clutch that can be separated from each other, but in this case, it is necessary to provide a speed reducing mechanism to reduce the speed during transmission. There was a drawback that the mechanism became complicated.

[0004]

In order to solve the above-mentioned problems, the drive mechanism for the discharge mechanism of the grain tank of the present invention is arranged so that the grain tank 9 for storing the threshed grains can be rotated to the outside of the machine body 3. A supporting mechanism is provided with a discharging mechanism 38 for discharging the grains in the Glen tank 9 to the outside, and a driving mechanism 39 for driving the discharging mechanism 38 and a driving force output section provided on the machine body 3 side. 31 is connected via a transmission section that transmits a driving force by rotating the transmission in a coordinated manner, the transmission section is meshed with the Glen tank 9 in a housed state,
The first feature is that the gear transmission mechanism 41 is separated as the Glen tank 9 rotates outward.

Further, the distance between the center of rotation of the gear 28 on the side of the drive mechanism 39 and the center of rotation of the gear 32 on the side of the drive force output section 31 is determined by the transmission state of the drive force from the drive force output section 31 to the drive mechanism 39. The second characteristic is that the holding member 48 for holding is provided so as to be detachable in diameter.

[0006]

1 and 2 are a plan view and a right side view of a self-removing combine according to the present invention. A machine body 3 is provided on a machine body frame 2 supported by the traveling device 1, and a pre-processing unit 4 for performing a mowing operation or the like is provided in front of the machine body 3.
And a driver's seat 6 are provided on the right front side. An engine 5 is provided below the driver's seat 6. The pretreatment unit 4 has a structure in which the pretreatment frame 4a of the pretreatment unit 4 and an elevating cylinder (not shown) connecting the body 3 side are expanded and contracted to swing up and down with respect to the body 3. .

Further, a threshing section 8 is provided on the left side of the machine body 3 and a grain tank 9 is provided on the right side thereof. Between the threshing section 8 and the grain tank 9, threshed grains and threshing section 8 are provided. Lifting barrel 11 that is lifted and conveyed from the bottom into the Glen tank 9
Is provided. The grain tank 9 has a height from the upper surface of the machine frame 2 to above the threshing unit 8 and occupies the machine frame 2 on the right side of the fried cylinder 11.

Next, the structure of the Glen tank 9 will be described. The grain tank 9 is provided with a horizontal spiral case 13 in the front-rear direction in which a horizontal spiral 12 for discharging a grain having a horizontal spiral shaft 12a is inserted at the bottom right corner side. At the rear end position of the horizontal spiral case 13, a hollow cylindrical vertical spiral case 16 having a vertical spiral 14 inserted therein is provided.
It stands from the side.

The rear part of the Glen tank 9 is the support member 1.
The vertical spiral case 16 is supported by the vertical spiral case 16 so as to be horizontally rotatable, and the rear end of the horizontal spiral case 13 is horizontally rotatably connected to the lower side of the vertical spiral case 16 via a connecting portion 17. There is. The horizontal spiral case 13 has a structure in which the grains in the Glen tank 9 can freely flow into the horizontal spiral 12.

At the upper end of the vertical spiral case 16, the grains in the grain tank 9 which are lifted and conveyed above the vertical spiral case 16 by a horizontal spiral 12 and a vertical spiral 14 driven as will be described later are discharged. A long discharge auger cylinder 22 is provided so as to be vertically swingable with respect to the vertical spiral case 16, and the grains that have been lifted and conveyed are discharged into the discharge auger cylinder 22 from the tip of the discharge auger cylinder 22. A discharge auger 23 (see FIG. 4) is provided. The vertical spiral case 16 is horizontally rotatable as described later.

On the other hand, a driven pulley 24 is provided at the front end of the horizontal spiral shaft 12a so as to project from the horizontal spiral case 13, and is rotatably provided below the front surface of the Glen tank 9 as shown in FIG. It is connected to the drive pulley 26 via a belt 27 which is a transmission means. A driven gear 28 that rotates coaxially with the drive pulley 26 is provided on the drive pulley 26 side. The driven gear 28 is rotationally driven from the engine 5 side provided on the machine body frame 2. It meshes with a drive gear 32 provided so as to project from a drive force output portion 31 that outputs force.

A tension pulley 33 is provided at a lower position of the belt 27 between the drive pulley 26 and the driven pulley 24 so as to be vertically swingable. The tension pulley 33 is located above the front of the Glen tank 9. It is connected to the side of the clutch lever 34 that is vertically swingable by a wire 35 that is an interlocking device. When the clutch lever 34 is swung, the tension pulley 33 swings upward to apply tension to the belt 27, and is transmitted from the engine 5 side to the drive pulley 26 side via the drive gear 32 and the driven gear 28. The driving force is transmitted to the driven pulley 24 side, and the horizontal spiral 12 is rotationally driven.

On the other hand, as shown in the transmission diagram of FIG. 4, the rear end of the horizontal spiral shaft 12a and the lower end of the vertical spiral shaft 14a for operating the vertical spiral 14 are connected by a bevel gear 36 and the upper end of the vertical spiral shaft 14a. And discharge auger 23
Are also connected by the bevel gear 37, and when the horizontal spiral 12 is rotationally driven as described above, the vertical helix 14 is rotated by the rotation of the horizontal spiral 12 and the discharge auger 23 is rotationally driven by the rotation of the vertical spiral 14. .

With the structure described above, when the clutch lever 34 is operated to transmit the driving force to the horizontal helix 12, the horizontal helix 12 and the vertical helix 14 are operated, and the horizontal helix case 13 extends from the bottom of the Glen tank 9 to the horizontal helix case 13. The grain flowing therein is lifted and conveyed above the vertical spiral case 16 by the horizontal spiral 12 and the vertical spiral 14. Then, by the discharge auger 23 that is rotationally driven by the operation of the vertical spiral 14, the grain that has been lifted and conveyed as described above is discharged from the tip of the discharge auger cylinder 22.

That is, the drive pulley 26 and the driven pulley 2
4, a driven mechanism 28, a tension pulley 33, etc. drive a driving mechanism 39 for driving a discharging mechanism 38 for discharging the grains in the grain tank 9 composed of the horizontal spiral 12, the vertical spiral 14, the discharge auger 23, etc. to the outside. The driving mechanism 39 and the driving force output section 31 are connected by a gear transmission mechanism 41 configured by the driven gear 28 and the driving gear 32, and the driving force is transmitted from the driving force output section 31 to the driving mechanism 39. ing. At this time, the driven gear 28 has a larger diameter (has more teeth) than the drive gear 32, and the rotational drive force of the drive force output portion 31 is decelerated and transmitted to the side spiral 12 side. The driven gear 28 and the drive gear 32 are arranged so as to mesh with each other from the front side.

On the other hand, as shown in FIGS. 1 and 4, the engine 5
The transmission of the driving force from the side to the driving force output unit 31 is performed by connecting the input pulley 42 provided on the driving force output unit 31 side to the output pulley 43 provided on the engine 5 side by a transmission means such as a belt 44. Is being done. At this time, the output pulley 43 is provided on the output shaft 46 that outputs the driving force to the threshing unit 8 provided on the engine 5 side.

As described above, when the Glen tank 9 is rotated to the outside of the machine body 3 about the vertical spiral case 16, the Glen tank 9 has the front surface of the Glen tank 9 as shown in FIG.
However, since the driven gear 28 and the drive gear 32 are meshed with each other from the front side as described above, the meshing is easily released from the front direction and the Glen tank 9 is easily separated. It can be rotated. When the Glen tank 9 is stored in the state before the rotation (storage position), the driven gear 28 and the drive gear 32 are meshed from the front direction as described above, and the Glen tank 9 is easily returned to the storage position. ,
The gear transmission mechanism (the driven gear 28 and the drive gear 32) is in a state in which the driving force can be transmitted (the gears 28 and 32 are in mesh).

It should be noted that the Glen tank 9 and the body frame 2 are provided with fixing holes (not shown) whose positions in plan view overlap when the Glen tank 9 is in the storage position. As shown in FIG.
By simultaneously penetrating both fixing holes, the position of the Glen tank 9 is fixed.

By rotating the Glen tank 9 to the outside of the machine body 3 as described above, maintenance of the Glen tank 9 and the right side of the threshing unit 8 can be easily carried out. The gear meshing is automatically released during movement, and the Glen tank 9 can be easily rotated. At the same time, the gear meshing that was released when the Glen tank 9 was rotated to the storage position meshes, and transmission is automatically performed. Since it is performed, it is not necessary to remove a driving belt or the like when rotating the Glen tank 9, unlike the conventional case, and the Glen tank 9 can be easily rotated.

Further, since the rotation speed of the horizontal helix 12 is usually lower than the rotation speed input to the threshing section 8, the discharging mechanism 38 is used.
It is necessary to lower the rotational speed of the rotational drive force input to the rotary engine than the rotational drive force input to the threshing unit 8 side. Therefore, in the present embodiment, as described above, the driven gear 28 and the drive gear 32 are
The gear ratio is set, and the gear transmission mechanism 41 is configured.

That is, since the transmission portion connecting the driving mechanism 39 and the driving force output portion 31 is composed of the gear transmission mechanism 41 in which the driven gear 28 and the driving gear 32 directly mesh with each other as described above, By setting the gear ratio of the drive gear 32 so that the rotation speed of the horizontal helix 12 is lower than the rotation speed of the input side (driving force output section 31 side), deceleration transmission can be performed without a separate reduction mechanism. And the structure of the transmission part is simplified.

On the other hand, as shown in FIGS. 5A and 5B, a lever 48 is provided on the driving force output section 31 side so as to be vertically swingable,
The lever 48 may be configured to hold a space between the driven gear 28 and the drive gear 32 in a meshed state. The rotation center of the driven gear 28, which is a gear on the drive mechanism 39 side,
The structure of the lever 48 that is a holding member that holds the distance from the rotation center of the drive gear 32 that is the gear on the side of the driving force output unit 31 will be described in detail.

As shown in FIGS. 5 (a) and 5 (b), one end of the lever 48 pivots so as to swing up and down around the rotation shaft 49 of the drive gear 32 toward the drive force output section 31 side. The lever 48 is freely attached, and a notch 52 is provided in a portion of the lever 48 facing the rotation shaft 51 of the driven gear 28. At this time, a roller 53 having a concave central portion is rotatably provided at a portion of the rotary shaft 51 of the driven gear 28 facing the cutout portion 52. When the lever 48 is swung downward, The notch portion 52 is configured to hold the concave portion of the roller 53.

That is, by swinging the lever 48 downward and sandwiching the concave portion of the roller 53 with the cutout portion 52, the rotary shaft 51 of the driven gear 28 is held in the cutout portion 52, and the rotation center of the drive gear 32. The distance between the (rotation shaft 49) and the rotation center (rotation shaft 51) of the driven gear 28 (inter-axis distance) is the lever 48.
The driven gear 28 and the drive gear 32 are securely meshed with each other, and the disengagement is prevented. At this time, the driven gear 2
Since the rotating shaft 51 of No. 8 is held on the lever 48 side via the rotatable roller 52, the rotating shaft 51 is rotatable even while being held by the lever 48.

A lever 48 is provided on the front of the Glen tank 9.
5 is provided with a holding portion 54 for detachably holding the tip end side of the lever 48. The lever 48 has a curved tip end side held by the holding portion 54 so as not to contact the driven pulley 24 and the like as shown in FIG. 5B. By doing so, the position is fixed while maintaining the axial distance between the drive gear 32 and the driven gear 28 as described above. When the Glen tank 9 is rotated, the tip end side of the lever 48 is removed from the holding portion 54, the lever 48 is swung upward, and the above-mentioned inter-axis holding of the driven gear 28 and the drive gear 32 is released. The Glen tank 9 can be easily rotated.

On the other hand, the vertical spiral case 16 is rotatable with respect to the body frame 2 as described above, and the discharge auger cylinder 22 rotates the vertical spiral case 16 and vertically swings the discharge auger cylinder 22 itself. Thus, the body 3 can be horizontally rotated (turned) and vertically swung. At this time, the vertical spiral case 16 is driven by the motor 56 shown in FIG. 6B to rotate.

As shown in FIGS. 6 (a), 6 (b) and 7, a cam 57 is provided on the outer periphery of the vertical spiral case 16 and abuts on the machine body 3 side following the cam 57. A potentiometer 59 having a guide portion 58 is provided, and the position of the cam 57 that rotates with the rotation of the vertical spiral case 16 is read by the potentiometer 59 to detect the rotation angle of the vertical spiral case 16. There is. Thereby, the horizontal rotation angle (turning angle) of the discharge auger cylinder 22 can be detected, and the position control of the discharge auger cylinder 22 can be performed more reliably.

[0028]

According to the present invention having the above-described structure, the grain discharging mechanism in the Glen tank has the driving force transmitted by the gear transmission mechanism, so that when the Glen tank rotates outward, Since the transmission is cut off due to disengagement etc., the Glen tank can be easily rotated without removing the drive belt etc. unlike the conventional case, and the maintenance on the right side of the Glen tank and the threshing part is easy. There is an effect that can be done. Further, since the transmission mechanism is simple and the speed can be easily reduced by the gear ratio of the gear transmission mechanism, there is an effect that it is not necessary to provide the reduction mechanism alone.

Further, when the driving force is transmitted to the discharging mechanism,
The distance between the center of rotation of the gear on the drive mechanism side and the center of rotation of the gear on the driving force output side is kept releasable by the holding member, so the center distance between the two gears is held by the holding member when the Glen tank is stored. The transmission is reliably carried out by holding, and at the time of outward rotation of the Glen tank, the Glen tank can be easily rotated by removing the holding member from the gear side.

[Brief description of drawings]

FIG. 1 is a plan view of a combine.

FIG. 2 is a right side view of the combine.

FIG. 3 is a front view of a Glen tank portion.

FIG. 4 is a transmission linkage diagram of a driving force of a Glen tank portion.

5 (a) and 5 (b) are a front view and a plan view of a Glen tank portion provided with a lever.

6 (a) and 6 (b) are a side view and a bottom view showing a cam portion of a vertical spiral case.

FIG. 7 is a plan view of a cam portion.

[Explanation of symbols]

 3 Aircraft 9 Glen Tank 28 Driven Gear (Gear) 31 Driving Force Output Section 32 Drive Gear (Gear) 38 Ejection Mechanism 39 Drive Mechanism 41 Gear Transmission Mechanism 48 Lever (Holding Member)

Claims (2)

[Claims] 1. A grain tank (9) for storing grains that have undergone threshing is rotatably supported outside the machine body (3), and the grain tank (9) is provided with grains in the grain tank (9). A discharging mechanism (38) for discharging the particles to the outside is provided, and a driving mechanism (39) for driving the discharging mechanism (38) and a driving force output section (31) provided on the machine body (3) side are linked and rotated. A gear that is connected via a transmission unit that transmits a driving force by engaging the transmission unit with the Glen tank (9) in the housed state, and is disengaged as the Glen tank (9) rotates outward. A driving mechanism driving device for a Glen tank, which is a transmission mechanism (41). 2. The driving force output section (31) to drive mechanism (3).
9) Holding the distance between the center of rotation of the gear (28) on the drive mechanism (39) side and the center of rotation of the gear (32) on the drive force output section (31) in the transmission state of the drive force to 9). Member (4
8. The drive mechanism for the discharge mechanism of the grain tank according to claim 1, wherein 8) is provided so as to be detachable.