JP2907725B2 - Combining conveyer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feed chain for a rear threshing apparatus, which is provided on a body of a machine so as to be able to freely swing up and down around a rear fulcrum and changes a cutting grain culm in an upright posture to a laterally inclined posture. For a vertical transport device in a rearwardly upward posture for transporting toward the starting end, in a state where the vertical transport device is disposed on the opposite side of the vertical transport device with respect to the transport path of the vertical transport device,
It is attached to the vertical transport device so as to be swingable integrally, and is driven by the same drive source as the vertical transport device via a vertical drive shaft, so that the harvested grain culm from the mowing device can be moved to the beginning of the transport path. The present invention relates to a combine transfer device for a combine to be joined to a unit.

[0002]

2. Description of the Related Art Conventionally, in the above-mentioned combine merging and conveying apparatus, a disk having a plurality of projections for locking a harvested grain culm on a peripheral portion is fixed to a lower end portion of the drive shaft so as to be integrally rotatable. .

[0003]

According to the above-mentioned conventional structure, a disk provided with a plurality of projections for locking the harvested stalks on the periphery is fixed to the lower end of the drive shaft. If the amount of harvested cereal stems is excessive, excessive force is applied to the projections for locking the harvested grain culm, and there is a possibility that the projections for locking the harvested grain culm may be damaged. Was.

Therefore, the disk and a pair of friction plates sandwiching the disk are fitted to the lower end of the drive shaft so as to be relatively rotatable, and a pair of torque transmitting plates are driven with the pair of friction plates sandwiched. Externally rotatably fitted to the shaft,
The disk, the pair of friction plates, and the pair of torque transmitting plates are elastically clamped by a clamping member attached to the drive shaft via an elastic member such as a disc spring fitted on the drive shaft. It is conceivable that when the external force applied to the stopping projections reaches a certain level, the disc and the friction plate are slipped to prevent damage to the cutting grain stem locking projections.

[0005] However, in the case of such a construction, the work of attaching a plurality of parts such as the disc and the friction plate to the lower end of the drive shaft and the operation of adjusting the elastic clamping force are performed by the lower end of the drive shaft in which various devices are involved. There is a problem that it is necessary to perform the operation in a narrow space around the device, and it takes time to carry out these operations and further the maintenance operation.

[0006] The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a system in which, when the amount of harvested culm supplied thereto is excessive, for example, a force which cannot withstand the harvested grain is applied. It is possible to prevent the protrusion for locking the culm from being damaged by preventing it from being added to the protrusion for locking the culm, and to mount the disc, the friction plate, etc. on the drive shaft, and to elastically clamp the shaft. An object of the present invention is to provide a combine merging and conveying device that can easily perform a force adjustment operation and a maintenance operation.

[0007]

SUMMARY OF THE INVENTION A characteristic feature of a combine merging / transporting device according to the present invention is that a cylindrical shaft having a flange at one end and a male thread at an outer peripheral portion, and a projection for locking a harvested grain culm on a peripheral portion. A disk having a plurality of portions and a pair of friction plates sandwiching the disk are rotatably fitted to each other, and a pair of torque transmitting plates are rotatably integrated with the cylinder shaft by sandwiching the pair of friction plates. The disk, the pair of friction plates, and the pair of torque transmitting plates are elastically sandwiched between the nut member screwed to the male screw portion and the flange portion via an elastic member fitted and externally fitted to the cylindrical shaft. In this state, the cylindrical shaft is mounted on the lower end of the drive shaft so as to be integrally rotatable and detachable.

[0008]

According to the above construction, for example, if the amount of the harvested grain culm supplied becomes large and the external force applied to the projection for locking the harvested grain culm becomes a predetermined constant magnitude. Therefore, the disk having a plurality of the hull grain locking projections on the periphery and the friction plate slip, so that a force greater than the set force is not applied to the hull grain culling locking projection.

A disk for the lower end of the drive shaft;
When mounting a plurality of parts such as a friction plate and a torque transmission plate, the disk, the pair of friction plates and the pair of torque transmission plates are fitted to the cylinder shaft in advance in a large space outside the fuselage. And a flange at one end of the cylindrical shaft,
After the cylinder shaft is elastically clamped by a nut member screwed to the male screw portion of the cylinder shaft and the elastic clamping force is adjusted, the cylinder shaft can be attached to the lower end of the drive shaft.

At the time of maintenance, a disk,
The cylinder shaft can be removed from the lower end of the drive shaft while a plurality of components such as a friction plate and a torque transmission plate are mounted, and maintenance can be performed in a wide space outside the body.

As described above, since the work of attaching the plurality of parts, the work of adjusting the elastic holding force by the elastic member, and the maintenance work can be performed in a wide space outside the body, the work can be easily performed. be able to.

[0012]

As described above, since a force greater than the preset force is not applied to the cutting grain stalk locking projections, the cutting grain stalk locking projections can be prevented from being damaged. Attaching of a disc and a friction plate, etc., having a projection for locking the harvested grain culm to the drive shaft, adjustment of elastic pinching force, and maintenance work can be easily performed, and a merger of a combine having good workability. A transfer device could be provided.

[0013]

Embodiments will be described below with reference to the drawings. FIG.
Shows a self-contained combine. This combine
Airframe 2 equipped with a pair of left and right crawler traveling devices 1
A threshing device 3 is mounted thereon, and a pre-cutting unit 4 is connected to the front of the machine so as to be able to move up and down, and a boarding operation unit 5 is provided on the right side of the pre-cutting unit 4.

The pre-cutting processing unit 4 includes a weeding tool 6 for sorting and culling the culm to be cut, a raising device 7 for raising the lodging grain culm in an upright posture, and cutting the root of the raised culm. The harvesting device 8, a plurality of auxiliary transport devices 9a, 9b, 9c (see FIG. 3) for gathering the harvested grain culm of each row toward the central side in the cutting width direction (see FIG. 3), and gradually moving the collected grain culm in the standing posture. A vertical conveying device 11 and the like in a rearwardly rising posture for conveying toward the start end of the feed chain 10 in the rear threshing device 3 while changing the posture to the falling posture are provided. And is supported on the body frame 2 so as to be able to move up and down freely.

The vertical transport device 11 comprises a tip-side locking transport device 11a, and a stock-side nip transport device 11b disposed below the tip-side locking transport device 11a. As shown in FIG. 3, the tip-side locking and conveying device 11a includes a chain 3 having a large number of locking claws 32 capable of locking the tip side of a grain stem.
3 is wound around a drive wheel body 34 on the feed chain 10 side to a free wheel body 35 on the auxiliary transport device side. In addition, the stock side holding and conveying device 11b includes a chain 3 with a conveying claw wound from a driving wheel body to an idle wheel body.
6, the holding rails are arranged close to each other.

On the opposite side of the vertical transfer device 11 from the tip-side locking transfer device 11a with respect to the transfer path R of the vertical transfer device 11, the vertical transfer device 11 is set in a standing posture in which the transfer is performed from the auxiliary transfer devices 9a, 9b, 9c. A merging and conveying device 12 for merging the harvested grain culm with the start end of the conveying route R is arranged.

The merging and conveying device 12 includes a vertical conveying device 11
Is attached to the vertical transport device 11 via an inverted U-shaped support pipe 13 extending from the right side to the left side over the upper part thereof. As shown in FIG. 1, a drive shaft 14 driven by the same drive source (not shown) as that of the vertical transport device 11 is bent in a support pipe 13 along a shaft center via a bevel gear mechanism 15. Housed.

The merging and conveying device 12 will be described in detail below. As shown in FIGS.
a, a disk 18 in which a plurality of raking claws 17 (an example of a cutting grain culm locking projection) are pivotally connected to a cylindrical shaft 16 in a vertical position having a male screw portion 16 b on the outer periphery of the upper end, A pair of friction plates 19 sandwiching the disk 18 are externally fitted so as to be relatively rotatable, and a pair of torque transmitting plates 20 are externally fitted to the cylindrical shaft 16 so as to be rotatable integrally with the pair of friction plates 19 interposed therebetween. The disc 18 and the pair of friction plates 1 are connected via a disc spring 21 (an example of an elastic member) externally fitted to the cylindrical shaft 16.
9 and a pair of torque transmitting plates 20, a nut member 22 screwed into the male screw portion 16 b and a flange portion 16.
The cylindrical shaft 16 is externally fitted to the lower end of the drive shaft 14 so as to be integrally rotatable and detachable in a state of being elastically held between the cylindrical shaft 16 and the shaft a.

The scraping claw 17 is pivotally connected by an upward pin 23 with one side surface of the base end portion being in contact with the upper surface on the outer peripheral side of the disk 18. And disk 18
As the is driven and rotated by the drive shaft 14, the base end of the raking claw 17 is brought into contact with the raking claw 17, and the raking claw 17 is passed through the transport path R of the vertical transport device 11 in the upright posture, and transported. After exiting the path R, the ring-shaped upright rail 24, which is brought into the down state until it enters the transport path R again, surrounds the lower end portion of the drive shaft 14, and the outer surface of the upright rail 24 has the scraping claws 17 Is disposed so as to face the base end portion of the main body.

Then, a cover 25 that covers the upper surface of the base end of the raking claw 17 standing in the transport path R and the entire raking claw 17 lying down outside the transport path R is provided. , Is attached to the lower end of the support pipe 13.

The cylindrical shaft 16 has a prism-shaped base end on the flange portion 16a side and a spline formed on the inner peripheral portion. The spline is spline-fitted to the spline at the lower end of the drive shaft 14. It is. The upper end of the cylindrical shaft 16 is brought into contact with the lower end surface of the bearing B externally fitted to the drive shaft 14 in a state where the lower end of the drive shaft 14 is brought into contact with the enlarged step portion of the drive shaft 14 from below. Male screw part 14 formed in the part
The nut 26 is screwed into the nut a, and the cylindrical shaft 16 is fixedly held between the nut 26 and the bearing B.

As described above, the torque transmitting plate 20 is rotatable integrally with the cylindrical shaft 16 by fitting a square hole formed in the center of the torque transmitting plate 20 to the prism portion of the cylindrical shaft 16.

Since the merging and conveying device 12 is constructed as described above, for example, the amount of cut culm supplied is increased, and the external force applied to the scraping claw 17 is reduced to a predetermined constant value. When this happens, the disc 18 and the friction plate 19 do not slip, so that a force greater than the force of the set magnitude is not applied to the raking claws 17.

When a plurality of parts such as the disk 18, the friction plate 19, the torque transmitting plate 20 and the like are to be attached to the lower end of the drive shaft 14, the disk 18 is previously set in a wide space outside the machine body. A pair of friction plates 19 and a pair of torque transmitting plates 20 are externally fitted to the cylinder shaft 16, and elastically formed by the flange portion 16 a of the cylinder shaft 16 and the nut member 22 screwed to the male screw portion 16 b of the cylinder shaft 16. The cylinder shaft 16 in the elastic clamping state can be attached to the lower end of the drive shaft 14 while clamping and adjusting the elastic clamping force.

At the time of maintenance, the disk 1
8, the cylindrical shaft 16 can be removed from the lower end of the drive shaft 14 while a plurality of components such as the friction plate 19 and the torque transmitting plate 20 are attached, and the maintenance can be performed in a wide space outside the machine body.

As described above, since the work of attaching the plurality of parts, the work of adjusting the elastic clamping force, and the maintenance work can be performed in a wide space outside the machine body, the work can be easily performed. .

[Another Embodiment] The scraping claw 17 may be upright without falling down.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a side view of a longitudinal section around a merging and conveying device.

FIG. 2 is an exploded perspective view of a main part of the merging and conveying device.

FIG. 3 is a plan view of a pre-cutting unit.

FIG. 4 is a side view of the front part of the combine.

[Description of Signs] 3 Threshing device 8 Cutting device 10 Feed chain 11 Vertical transport device 14 Drive shaft 16 Cylindrical shaft 16a Flange portion 16b Male screw portion 18 Disk 19 Friction plate 20 Torque transmission plate 21 Elastic member 22 Nut member P Support point R Transport path

Claims (1)

(57) [Claims] 1. A feed chain (3) in a rear threshing device (3), which is provided on a body so as to be capable of swinging up and down around a rear fulcrum (P) so as to change a cutting culm in a standing position to a sideways posture. In contrast to the vertical transport device (11) which is transported toward the starting end of the vertical transport device (11), the vertical transport device (1) is sandwiched by the transport path (R) of the vertical transport device (11).
In a state arranged on the side opposite to 1), it is attached to the vertical transport device (11) so as to be able to swing integrally, and is connected to the vertical transport device (11) via a vertical drive shaft (14). A combine merging and conveying device that is driven by the same drive source and merges the harvested grain culm from the mowing device (8) with the start end of the conveying route (R), wherein a flange portion (16a) is provided at one end. Male thread (1
A disk (18) provided with a plurality of projections (17) for locking the harvested grain culm on a peripheral portion thereof, and a pair of friction plates (19) sandwiching the disk (18) are provided on a cylindrical shaft (16) provided with 6b). The friction plates (1)
9), a pair of torque transmitting plates (20) is fitted around the cylinder shaft (16) so as to be rotatable integrally with the cylinder shaft (16), and the cylinder shaft (1) is rotated.
The disc (18), a pair of friction plates (19), and a pair of torque transmitting plates (20) were screwed to the male screw portion (16b) via an elastic member (21) externally fitted to 6). Nut member (22) and the flange portion (16a)
And a resiliently sandwiched cylindrical shaft (16) mounted on a lower end portion of the drive shaft (14) so as to be integrally rotatable and detachably fitted to the outside.