JPS6040112Y2 - reaper - Google Patents

Description

[Detailed description of the invention] The present invention pivots the reaping section on the traveling machine body around a horizontal axis so that it can swing vertically, and also erects a reaping section lifting support device between the traveling machine body and the reaping section. Regarding the reaper.

Conventionally, the reaping section elevating support device is attached to the machine body by erecting a support bracket on the machine body, or by installing a special support shaft.

(For example, Utility Application No. 52-151 proposed earlier by the present applicant)
(Reaper described in No. 797) The problem to be solved by the present invention is that the reaping section lifting support device cannot be installed on the machine body side without adding a new special structure. It is in.

Therefore, the technical measures taken by this invention to solve the problem are:
A supporting shaft for loosely fitting a gear mounted in a mission case on the machine body side is made to protrude through the outside of the mission case, and this protruding shaft portion is configured as a part for mounting the reaping part lifting and lowering support device on the machine body side. This has the following effects.

According to the technical means of the present invention, since the spindle that is originally mounted inside the transmission case is effectively used, reaping can be achieved with a very simple modification of making the spindle protrude through the transmission case. The lifting support device can be mounted on the fuselage side, and this mounting on the fuselage side has the effect of making the part extremely simple.

Hereinafter, embodiments of the present invention will be described based on the drawings.

A pulling device 1 that pulls up planted stem culms in the field, a reaping device 2 that reaps the raised stem culms, a raking conveyance device 3 that rakes in the cut stem culms and supplies them to the rear, and A reaping section 6 comprises a vertical conveying device 5 that conveys the harvested stem culm backwards, changes its posture to a sideways posture, and delivers it to the feed chain 4, and a cutting section 6 that carries the stem culm while holding and conveying it between the feed chain soil 4 and threshing the stem culm. The threshing device 7 is sequentially connected to a traveling machine which is equipped with a crawler traveling device 8 and a control section 9, and as it travels, the planted stems and culms in the field can be harvested continuously. A reaper - an example of a combine harvester - is configured to handle the process.

As shown in FIG. 2, a cover unit 12 having a locking pawl 11 pivotally connected thereto is fitted onto the upper part of the sprocket shaft 10 on the conveyance start end side of the vertical conveyance device 5, and is slid into a predetermined position by sliding contact with the guide plate 13. The locking claws 11 are configured to stand up and protrude within the range, and are configured to reliably scrape and supply the reaped stem culm to the vertical conveyance device 5.

A dish-shaped cover 15 is provided in succession between the locking claws 11 and the starting end side sprocket 14 of the vertical conveyance device 5, and the locking claws 11 are provided between the peripheral edge of this cover 15 and the cover 12.
・A narrow opening 16 is formed to allow it to protrude,
The locking claw 11 is configured to prevent the stem culm from wrapping around as much as possible.

The reaping section 6 is integrally supported by a reaping blanket 17, and the reaping blanket 17 is pivotally connected to the transmission case 18 so as to be swingable around the horizontal axis 1.
The mower is configured to be able to move up and down and switch between a raised non-working position such as crossing ridges or running on the road, and a lowered working position, as well as adjust the cutting height in the working position.

The transmission case 18 includes an input shaft 19 for inputting power from the engine E, a back shaft 20, first and second shift shafts 21 and 22, a steering clutch shaft 23, and a travel drive shaft 24.
, 24, a feed chain drive shaft 25, an output shaft 26 that is input midway through the reaping blanket 17 to drive the lifting device 1, the reaping device 2, and the scraping conveyance device 3, and a bevel shaft 27 for driving the vertical conveyance device 5. is mounted on a shaft and transmits the power from the engine E to the reaping section 6 and the feed chain 4. It is configured to transmit transmission to the traveling device 8 via a second transmission mechanism 29 formed between the two shafts 22 so as to be variable in six forward speeds and two reverse speeds.

Further, a reaping section elevating support device that holds the reaping section 6 at multiple vertical positions is installed across the reaping section 6 and the traveling machine body.In this embodiment, the reaping section elevating support device is As shown in FIG. 3 of the drawings, the supporting parts (the parts that are attached to the fuselage side) of the lifting arms 32 and arms 33 are extended to the outside of the mission case 18 with both ends protruding from the back shaft 20. It is composed of parts 20a and 20b to simplify the configuration.

That is, as shown in FIG.
The lifting arm 32 is engaged with a pin shaft attached to the back shaft 20, has a ratchet pawl 31 on the other end, and has an intermediate portion supported by the protruding portion 20a of the back shaft 20, and is supported by a spring 30a. Therefore, the locking mechanism 30 is capable of releasing the engagement with the ratchet pawl 31 and separating it, and is supported by the protruding portion 20b of the back shaft 20, and the elevating arm is The arm 35 is attached to the protruding portion 20b so as to be able to swing together with the arm 32, and is connected to the rod 35 on the other end of which is fitted a balance spring 34 for moving and biasing the reaping section 6 in the upward direction. It is composed of 33.

In the drawing of FIG. 1, the reference numeral 6A is a grip lever fixed to the reaping section 6 for raising and lowering, and the reference numeral 6B is a knob for disengaging the ratchet pawl 31 through the release wire 36. .

In the reaper in this embodiment, the vertical swing adjustment of the reaping section 6 is performed as follows.

The operator who performs the vertical swing adjustment first pushes the knob 6B while holding the grip lever 6A to disengage the ratchet pawl 31 from the locking mechanism 3°, and then, with the help of the force of the balance spring 34, the operator The operator lifts or pushes down the reaping part 6 with his own power to adjust the swing, and at the desired position, he releases his finger from the knob 6B to lock it.

A spring 30a provided in the locking mechanism 30 functions as a safety device that releases the ratchet pawl 31 in order to release the thrusting force when the cutting section 6 hits a raised object or the like.

In the above embodiment, the back shaft 20 on which the back gear 36 is loosely fitted is also used as the part for mounting the reaping section lifting and lowering support device on the machine body side. If so, these speed change shafts may also be used to attach the reaping section lifting/lowering support device to the machine body side, and they will be collectively referred to as the support shafts 20.

[Brief explanation of drawings]

The drawings show an embodiment of the reaping machine according to the present invention, in which Fig. 1 is a partially omitted side view of a combine, Fig. 2 is a partially cutaway side view of the main parts, and Fig. 3 is a cross-sectional view of Fig. 1. It is a partially expanded cross-sectional view of the line. 6... Reaping part, 18... Mission case, 20... Support shaft, back shaft, 20a, 20
b... Protruding part, 36... Back gear, P... Swing axis of the reaping part.

Claims (1)

[Claims for Utility Model Registration] 1. A reaping section 6 is pivotally supported on the traveling machine body so as to be vertically swingable around a horizontal axis 1, and a reaping section lifting support device is installed across the traveling machine body and the reaping section 6. In this reaper, a support shaft 20 for loosely fitting a gear, which is mounted in a mission case 18 on the machine body side, is made to protrude through the outside of the mission case 18, and these protruding shaft portions 20a and 20b are used to support the reaping part up and down. The device is attached to the body side of the reaper. 2. The reaping machine according to claim 1, wherein the support shaft 20 is a back shaft into which a back gear 36 is loosely fitted.