JPH0444042Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a conveyance device for a harvester, and in particular, a support arm having an auger part is attached to the side of the machine frame so that it can be freely rotated in the vertical direction. A harvester connected to a harvester while being biased downward in the direction, in which the biasing force of the support arm can be released and the gap between the auger part and the machine frame can be adjusted according to the properties of the harvested material. Regarding a conveyance device.

[Prior Art] Generally, a harvesting machine for harvesting crops such as grass has a configuration as shown in FIG.

As shown in the figure, a mounting frame 2 is provided at the rear of the tractor 1 in the direction of travel, and a transport vehicle 3 is connected to the mounting frame 2, and a forage harvester 6 is connected in parallel via a vertical rod 4 and a traction rod 5. are concatenated.

A pick-up unit 7 is formed in this forage harvester 6 in order to carry in the harvested material in front of the harvester in the direction of movement thereof, and this pick-up unit 7
is provided with a pickup section 10 having a power transmission device 8 and tines 9, and an auger section 13 having an auger drum 11 and a spiral plate 12 supported by an L-shaped machine frame 14; Sequential feed section 15 and cutting blow section 16,
A chute 17 is connected.

Further, the mounting frame 2 is provided with a transmission 18, and the input shaft of the transmission 18 is the first one.
It is connected to the output shaft of the tractor 1 via a universal transmission shaft 19, and the output shaft is connected to the input shaft of the forage harvester 6 via a second universal transmission shaft 20.

Therefore, from the tractor 1 to the first universal transmission shaft 1
9. Power is transmitted to the forage harvester 6 via the second universal transmission shaft 20, and the power rotates the pick-up section 10 and the auger section 13, as well as the feed section 15 and the cutting blower section 16.

Furthermore, support arms 21 are extended from both ends of the auger drum 11 which is rotatably driven on the front surface of the machine frame 14, facing the side surface of the machine frame 14, and these support arms 21 are shown in FIGS. As shown in the figure, it is connected to the machine frame 14 so as to be rotatable in the vertical direction, and is biased downward in the rotational direction. That is, a guide rod 22 is provided between the side surface of the machine frame 14 and the side surface of the support arm 21, and this guide rod 22 is pivotally supported by a support piece 23 extending from the support arm 21, and The support piece 24 is inserted through and supported by a support piece 24 extending from a side surface of the frame 14, and a spring 25 is provided between these support pieces 23 and 24.

Therefore, the harvest picked up by the pick-up section 10 is transferred to the feed section 1 by the auger section 13.
5, it is blown into the transport vehicle 3 via the cutting blower part 16 and the chute 17.

Further, the support arm 21 is always urged downward in the rotational direction by the spring 25, so that the auger section 1
3 stably transports the crops picked up by the pick-up section 10 to the supply port of the feed section 15, and the amount of upward rotation in the rotation direction is limited in order to prevent excessive supply of the crops to the feed section 15.

Note that the power transmission device 8 that drives the auger section 13 is provided with a slip clutch (not shown), and even though the auger section 13 is rotated to its upper limit position, the slip clutch does not allow the harvested material to be supplied to the auger section 13. When the auger part 13
It is designed to cut off the rotational drive of the

[Problem to be solved by the invention] By the way, the crops that are cut before being harvested by the forage harvester 6 are scattered on the field or collected in rows. The traveling speed of the tractor 1 is set according to the processing capacity of the forage harvester 6.

In actual harvesting operations, there are cases where excessive harvest is picked up due to picking up a dense part of the harvest collected in rows, entanglement of the harvest, or incorrect speed selection of the tractor 1, and the auger 13 becomes clogged, and the slip clutch of the power transmission device 8 operates, causing the auger section 1 to become clogged.
3 stops rotating and becomes unable to be transported.

Therefore, in order to make it possible to harvest, the auger section 13
However, in order to remove the clogged crops, it is necessary to work against the weight of the auger section 13 and the spring force of the spring 25 that biases it, which requires a large amount of work. I had a problem that required a lot of effort and time.

In addition, the spiral plate 12 of the auger part 13 and the machine frame 14
In order to maintain the gap _S1 constant and adjust the biasing force of the spring 25, insert a shim corresponding to the changed spring length between the support piece 24 and the spring 25 between the support piece 24 and the nut 26. move between or
Alternatively, it is conceivable to move in the opposite direction, but in this case there is a problem that the adjustment work is extremely complicated.

The present invention was created to effectively solve the above problems.

The present invention is a harvester in which a support arm having an auger part on the side of the machine frame is connected to each other so that it can freely rotate in the vertical direction and is biased downward in the rotational direction. The purpose of the present invention is to provide a conveyance device for a harvester that can be released, reduce work effort and work time, adjust the urging force applied to the support arm according to the properties of the harvested material, and improve the work ability. do.

[Means for Solving the Problems] The present invention has a support arm extending from the end of an auger section having a spiral plate rotatably driven on the front side of a machine frame into which harvested products are carried in to a side surface of the machine frame. , in a harvester in which the support arm is connected to the machine frame while being freely rotatable in the vertical direction and biased downward in the rotational direction, the harvester is provided between the side surface of the machine frame and the support arm, and a guide rod that is pivotally supported by a support piece extending from the support arm and inserted through the support piece that extends from the support arm; one end of the guide rod is locked to the support piece of the support arm along the guide rod; a biasing means for biasing the guide rod downward in its rotating direction; and a locking means for releasing the biasing force of the biasing means by allowing movement of the other end.

Further, the conveying device of this harvester includes a gap adjustment means for adjusting the gap between the machine frame and the auger portion by separating the support piece of the support arm from the support piece of the machine frame by a predetermined distance along the guide bar. It is composed of

Further, the conveying device of the harvester is configured to connect the lock means and the support piece of the support arm so that the gap can be adjusted, and to have a biasing force adjusting means for adjusting the biasing force of the biasing means.

[Operation] By releasing and locking the urging force of the urging means from the radial direction of the spring with the locking means, it is possible to easily lock and release the urging force applied to the support arm.

Since the gap between the auger part and the machine frame below it is indirectly expressed by the gap between the support piece extending from the machine frame and the support piece extending from the support arm, the gap adjustment means is adjusted to adjust the gap between these support pieces. This means adjusting the gap and keeping the gap constant. Therefore, it is possible to maintain a constant gap between the auger part and the machine frame depending on the properties of the harvested product.

Further, the biasing force adjusting means can adjust the biasing force of the biasing means against the support arm, and can set the biasing force in accordance with the harvested product.

[Example] An example of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows a forage harvester 30 being towed by a tractor.

This foliage harvester 30 is provided with a pick-up unit 31, a feed section 32, a cutting section 33, etc., as in the conventional case, and the pick-up unit 31 has a machine frame 35 extending in the direction of movement in an L-shape.
is provided, and tines 36 are provided on the front of this machine frame 35.
A pick-up section 37 is provided, and an auger section 40 having an auger drum 38 and a spiral plate 39 is rotatably driven.

A support arm 41 extends from both ends of the auger section 40, and the support arm 41 extends to the side surface of the machine frame 35 and is connected by a pivot shaft 42, and is rotatably movable in the vertical direction. I'm starting to be able to do it.

In particular, the side part of this machine frame 35 and the support frame 4
A guide rod 43 is provided between the machine frame 35 and the machine frame 35, and as shown in FIG. .

This support piece 44 is composed of a shaft body 45 extending from the side surface of the machine frame 35 and a cylinder body 46 that covers it. It is locked at 47.

Further, the guide rod 43 is inserted through a support piece 48 extending from the support arm 41, and a certain gap _S2 is formed between this support piece 48 and the support piece 44 of the machine frame 35, and this gap S ₂ is adjusted by the gap adjusting means 49.

This gap adjustment means 49 is mainly composed of a pair of nuts 50 and 51 that are screwed onto the guide rod 43, and a tube body 52 that covers the guide rod 43.
is connected to the support piece 48 via a washer 53 and an elastic body 54.

Therefore, as the nuts 50 and 51 move, the support pieces 44 and 48 are brought closer to each other and separated, and the gap between the auger section 40 and the machine frame 35 is adjusted accordingly.

Further, the guide rod 43 is provided with a biasing means 5 for biasing the support arm 41 downward in the rotational direction thereof.
5 is provided.

In this embodiment, this biasing means 55 is a spring 5
6, one end 57 of this spring 56 is locked to the support piece 48 via a pressure plate 58 and a tube body 59, and the other end 60 is locked to the locking means 6.
It is designed to be locked by 1.

In particular, the locking means 61 is provided with a sliding body 62 movably surrounding the guide rod 43, and this sliding body 62 is formed with a flange portion 63 whose diameter expands outward in the radial direction. Flange part 63
forms a seat for the other end 60 of the spring 56.

Furthermore, a clamping means 64 for clamping the guide rod 43 is integrally provided on the sliding body 62.

This clamping means 64 includes a brake bolt 65 eccentrically inserted into the sliding body 62 so as to be orthogonal to the guide rod 43, a brake nut 66 that engages with the brake bolt 65, and a brake piece 67 inserted into the brake bolt 65. These brake bolts 65 and brake pieces 67 are composed of, as shown in FIGS. 2 and 3,
The guide rods 43 are moved close to each other to clamp the guide rods 43 from the radial direction, and a handle lever member 68 extends from the brake nut 66 to move the guide rods 66 forward and backward along the brake bolt 65.

Further, each of the brake bolts 65 and the brake piece 67 has a stepped portion 6 for clamping the guide rod 43.
9 and 70 are formed, and cutout portions 71 and 72 are formed in the stepped portions 69 and 70 by cutting out the corner portions,
The notches 71 and 72 form clamping surfaces for clamping the guide rod 43.

Therefore, the locking means 61 is connected to the brake nut 66.
When the guide rod 43 is clamped by the brake bolt 65 and the brake piece 67, the movement of the other end 60 of the spring 56 is restricted from the radial direction, and the spring 5
In order to restrain both ends 57 and 60 of the support arm 6, a compressive force corresponding to the amount of rotational movement of the support arm 41 is generated in the spring 56.

Further, the locking means 61 is configured to release the clamp of the guide rod 43 to allow the other end 60 of the spring 56 to move, thereby releasing the biasing force of the spring 56 applied to the support arm 41.

Further, as shown in FIG. 2, an adjustment bolt 73 is inserted through the pressure plate 58, and the adjustment bolt 73 is inserted into and screwed into the flange portion 63 of the sliding body 62. The adjustment bolt 73 is provided with an adjustment nut 74 for adjusting the amount of screw engagement thereof. That is, these adjustment bolts 73 and adjustment nuts 74 constitute a biasing force adjusting means 75 that connects the sliding body 62 of the locking means 61 and the pressure plate 58 on the support piece 48 side so that the gap can be adjusted, and this biasing force adjusting means 75 compresses the spring 56 to release the spring 56 against the support arm 41;
It is designed to adjust the biasing force of

Next, we will discuss the effect.

As shown in FIGS. 1 and 2, the gap S ₃ between the machine frame 35 and the auger section 40 supported therein indirectly extends from the support piece 44 and the support arm 41 extending from the machine frame 35. This is represented by a gap S ₂ between the support piece 48 and the support piece 48 , and the gap S ₂ is adjusted by a gap adjustment means 49 . That is, by moving the nuts 50, 51 along the guide rod 43, the supporting pieces 44, 48
By fixing the machine frame 35 in a predetermined gap _S2 ,
The gap _S3 between the auger section 40 and the auger section 40 is maintained constant.

Next, when performing harvesting work, the spring 56 is
to obtain compressive force.

First, rotate the handle lever member 68 to loosen the brake nut 66 to release the clamping force between the brake bolt 65 and the brake piece 67, and move the sliding body 62 downward until the tube body 59 comes into contact with the support piece 48. Then, at the contact position, the handle lever member 68
is rotated in the closing direction to clamp the guide rod 43. The sliding body 62 includes a brake bolt 65 and a brake piece 67
Since the brake nut 66 strongly clamps the guide rod 43 via the guide rod 43, the brake nut 66 is integrally fixed to the guide rod 43.

As a result, both ends 57, 6 of the spring 56
0 is restrained from both the support piece 48 side and the sliding body 62 side, and the upward rotational movement of the support arm 41 generates a compressive force in the spring 56. At this time, the pressure plate 58 moves along the adjustment bolt 73.

Therefore, when the harvested product of the auger section 40 is supplied, the biasing force of the spring 56 against the support arm 41 increases, and a conveying force commensurate with the amount of harvested material supplied is obtained.

On the other hand, if an excessive amount of harvested material is supplied to the auger section 40 and a clutch (not shown) is actuated to stop the rotation of the auger section 40, the spring 5
Release the compression force in step 6.

To do this, first, the handle lever member 68 is rotated to loosen the brake nut 66, thereby releasing the clamping force exerted by the brake bolt 65 and the brake nut 66.
When this clamping force is released, the sliding body 62 is released from the previous restraining force and becomes movable along the guide rod 43, and the other end 6 of the spring 56
The binding force of 0 is released and its movement is allowed.

Therefore, since the biasing force applied to the support arm 41 is released, the auger section 40 can be easily lifted, and the harvested material stuck in the auger section 40 can be easily released.

Further, in order to adjust the biasing force of the auger section 40 depending on the properties of the harvested product, this can be achieved by loosening the adjusting nut 74 provided on the adjusting bolt 73 and adjusting the screwing amount of the adjusting bolt 73 into the sliding body 62. I can do it. Adjustment of the gap _S3 between the auger portion 40 and the machine frame 35 can also be facilitated by the nuts 50 and 51.

Note that the impact generated when the support arm 41 moves downward in the rotational direction is absorbed and alleviated by the elastic body 54.

As described above, in the present invention, when the auger section 40 becomes clogged, the urging force applied to the support arm 41 can be released by a simple operation, and the labor and time can be significantly reduced.

Furthermore, the biasing force of the auger section 40 can be arbitrarily adjusted according to the properties of the harvested material, thereby improving work efficiency. Furthermore, since the gap between the auger section 40 and the machine frame 35 below it can be arbitrarily adjusted according to the properties of the harvested product, the range of target harvested products is widened, and the versatility of the harvesting machine is increased.

Although the present invention has been explained about a foliage harvester having a pick-up unit 31,
It is not limited to this. In addition, there is a heaver, which has a mechanism that picks up grass in a pick-up section and feeds the grass into a compression chamber using a combination of an auger and a feeder, or a corn harvester, which has a mechanism that sends cut long-rod crops to a feed section using an auger. It is also effective for other purposes, and produces similar effects.

In addition, in the present invention, the auger section 40 that rotates
As described above, the spring 56 and the pressure plate 5
8. Even with a cross-feeding mechanism using a stationary auger section 40 by removing the adjustment bolt 73, etc., it becomes easy to release the load due to a blockage. Further, the biasing means 55 is not limited to the spring 56, and may be constructed of an air spring or synthetic rubber.

Furthermore, the pressure plate 58 and the tubular body 59, and the washer 53 and the tubular body 52 may each be formed integrally.

[Effects of the invention] In summary, the present invention provides the following excellent effects.

(1) According to claim 1, when the auger section becomes clogged, the urging force applied to the support arm can be released by a simple operation, and the labor and time for this operation can be significantly reduced.

(2) According to claim 2, the gap between the auger part and the machine frame below it can be arbitrarily adjusted according to the characteristics of the harvested product, so the range of harvested products that can be targeted is widened, and the versatility of the harvesting machine is improved. increases.

(3) According to claim 3, the biasing force of the auger section can be arbitrarily adjusted according to the properties of the harvested material, and the working capacity is improved.

[Brief explanation of the drawing]

Figure 1 is a side view showing the harvester according to the present invention, Figure 2 is an enlarged view showing the main parts of Figure 1, and Figure 3 is a side view of the harvester according to the present invention.
Figure 4 is a plan view showing the entire harvesting machine, Figure 5 is a side view showing a conventional harvesting machine,
FIG. 6 is a sectional view showing the main parts of the conventional device. In the figure, 35 is a machine frame, 40 is an auger part, 41 is a support arm, 43 is a guide rod, 44, 48 are support pieces, 49 is a gap adjustment means, 55 is a biasing means, 61
75 is a locking means, and 75 is a biasing force adjusting means.

Claims (1)

[Claims for Utility Model Registration] 1. A support arm extending from the end of an auger section having a spiral plate rotatably driven on the front side of a machine frame into which harvested products are carried in to a side surface of the machine frame; In a harvester in which the arm is connected to a machine frame while being freely rotatable in the vertical direction and biased downward in the rotational direction, a harvester is provided between the side surface of the machine frame and the support arm, and extends from the machine frame. a guide rod that is pivotally supported by the support piece extending from the support arm and inserted through the support piece; one end of the guide rod is locked to the support piece of the support arm along the guide rod;
A biasing means for biasing the support arm downward in the rotational direction thereof, and a biasing means for clamping the guide rod to lock the movement of the other end of the biasing means in the radial direction, and a biasing means for biasing the support arm downward in the rotational direction thereof, and a biasing means for clamping the guide rod to lock the movement of the other end of the biasing means in the radial direction. 1. A conveyance device for a harvester, comprising a locking means for permitting movement of the other end of the urging means and releasing the urging force of the urging means. 2. The harvester according to claim 1, further comprising gap adjustment means for adjusting the gap between the machine frame and the auger portion by separating the support piece of the support arm a predetermined distance from the support piece of the machine frame along the guide bar. Machine transport device. 3. The conveying device for a harvester according to claim 1, further comprising biasing force adjusting means for connecting the locking means and the support piece of the support arm so that the distance between them can be adjusted, and adjusting the biasing force of the biasing means.