JPS6345165Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention has one surface in the rotation direction formed on the discharge outlet side of the binding space as a stalk culm focusing pressure sensing surface, and the other surface formed on the discharge outlet side of the binding space. The present invention relates to a culm binding device provided with a revolving door with a revolving arm formed on the discharge surface.

In this type of stem culm binding device, the diameter of the stem culm bundling is required to be changed depending on the variety of the stem culm, the recovery operation of the released stem culm, the content of post-processing such as sun drying, etc.

Conventionally, as a means to satisfy such requirements, as shown in Japanese Utility Model Publication No. 48-33718, the bundling diameter can be adjusted by changing the area of the bundling receptor, that is, the area of the stem culm focusing pressure sensing surface. changes were being made. However, in a device that changes the area of the sensing surface in this way, the pushing force of the picker for picking up the stem culm changes depending on the properties of the culm, that is, whether it is hard or soft. The pressing force acting on the pressure sensing surface also changes, making it difficult to obtain a desired diameter.

Therefore, as a means to change the bundle diameter without changing the area of the stem culm focused pressure sensing surface, Japanese Utility Model Application Publication No. 51-2535 proposes changing the position of the door relative to the door mounting seat. Changing the position of the focused pressure sensing surface has been shown. However, with this structure, the sensing surface intersects the radial line passing through the axis of the door shaft, so changing the position of the door relative to the door mounting seat changes the door's rotation radius. However, the larger the diameter of the bundle, the longer the arm of the turning moment used for the door, causing the door to turn with a small force, making it difficult to obtain the desired warp.

The purpose of this invention is to adopt a method that is not affected by changes in the hardness or softness of the culm, that is, a method that changes the position of the culm focusing pressure sensing surface, while still allowing the desired diameter to be easily obtained. shall be.

A characteristic configuration of the present invention to achieve the above object is to form a curved recessed portion that opens toward the binding space side in the stalk culm focusing action posture on the stalk culm focusing pressure sensing surface of the rotating arm of the revolving door. At the same time, an adjustment member is attached to change and adjust the recess amount of the curved recessed part, and further, the adjustment member is provided with a pressing surface along the radial direction of the rotation circle of the revolving door, and the pressing surface is attached to the rotating arm. The adjusting member is attached to the rotating arm so that it can be moved relative to the rotating arm and fixed so that the adjusting member can be adjusted to change its position forward and backward in the rotating direction,
This configuration provides the following effects.

That is, a curved recess is formed in the stem culm focusing pressure sensing surface of the rotating arm of the revolving door, and the recess is closed with an adjustment member having a pressing surface along the radial direction of the rotation circle of the revolving door. Since the adjusting member is configured to be able to adjust its position forward and backward in the rotational direction with respect to the rotary arm, and is configured to change the bundle diameter, even if the mounting position of the adjusting member forming the focused pressure sensing surface is changed, The radius of rotation of the focused pressure sensing surface does not change significantly, that is, the rotational moment acting on the revolving door does not change significantly. The pressing force acting on the stem and culm is approximately constant, so that it is easy to obtain a stem and culm bundle with a desired diameter.

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

To configure the waste straw binding processing section of the combine harvester,
The threshing device 1 is attached to the rear frame 2 of the threshing device 1.
A device 5 for tying the threshed waste straw (an example of stalk culm) supplied from the feed chain 3 via the waste straw chain 4 in a sideways position is placed in an inclined position with the tying space 6 facing upward from the front toward the bottom at the rear. In addition, an auxiliary lock is provided between the straw removal chain 4 and the bundling device 5 to convey and supply the waste straw to the bundling space 6. A transport device 7 is installed.

The binding device 5 includes a pair of constantly driven right and left scraping packers 9, 9, a binding string supply needle 10, The revolving door 11, which is equipped with a waste straw convergence pressure sensing surface 11a and a bundled waste straw bundle release surface 11b located at the back thereof, is operated while the needle 10 is located between the two packers 9, 9, and when the rotating door 11 is The door 11 is disposed on the outlet side of the binding space 6, and the case portion located on the upper side of the binding space 6 has a string knotting section 12 provided with a string holder 12a and a knotting building 12b. and the release arm 13 are deployed,
Based on the sensed rotation of the revolving door 11 when a predetermined amount of waste straw is collected in the bundling space 6, a well-known one-turn clutch for tying operation (not shown) is inserted and operated, thereby closing the bundling space. The structure is such that the collected waste straw group in 6 is bundled and discharged.

The revolving door 11 includes a first rotary arm 11A having a rising wall that is substantially crank-shaped in plan view, and a second rotary arm 11B having a flat plate shape, and these rotary arms 11A, 11B are connected to the first rotary arm. Within the range of the elongated hole 14 formed in the door shaft 11A, the door shaft 11C is fixedly connected via bolts and nuts 16, 16 in such a manner that the relative mounting position can be changed around the axis.

Thus, the straw removal focusing pressure sensing surfaces 11a, 11a of the two rotary arms 11A, 11B have an approximately V level toward the binding space 6 side in the straw removal focusing action posture.
Notch 1 as a curved recess that opens in a square shape
7 and 17, and the first rotary arm 1
1A, an adjustment member 18 having an L-shaped cross section for changing and adjusting the amount of recess of the notch 17 is removably installed,
By attaching and detaching the member 18, the opening area of the notch 17 can be changed in two stages.

One end side of the member 18 is connected to both door members 11.
Bolts and nuts 15 that fixedly connect A and 11B,
16 and are fastened together.

By changing the opening area of the notch 17, the bundle diameter of the waste straw can be changed into two stages.

Further, on the string guide plate 19 side on the string knotted portion 12 side, there is a rib 20 that partially overlaps with the tucking car 9 at the maximum raking position in side view, and a rib 20 that partially overlaps with the tucking car 9 at the maximum raking position in side view, and a rib 20 that partially overlaps with the tucking car 9 at the maximum raking position in side view. It is extensible and
and a separation spring 21 whose tip is located near the maximum raking position of the packer 9 in its maximum extension state.
Additionally, a tip pressing spring 22 prevents the tip of the waste straw collected in the bundling space 6 from shifting.
In addition, the transport frame 7a of the auxiliary locking and transporting device 7 is provided with a separation spring 23 that can be expanded as the transporting device 7 works to transport the waste straw.

In the above-mentioned embodiment, the opening area of the notch 17 is fixed in two stages by attaching and detaching the member 18. Swing or cutout 17
member 18 in a direction perpendicular to the opening width direction of
The opening area of the notch 17 may be changed and fixed stepwise or steplessly by the sliding movement of the cutout 17.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

FIG. 1 is a side view of a waste straw bundling processing section of a combine harvester, FIG. 2 is an enlarged side view of a bundling device, and FIG. 3 is an enlarged exploded perspective view of a revolving door. 6... Binding space, 11... Revolving door, 11A...
...Rotating arm, 11a... Stem culm focused pressure sensing surface, 11b
... Binding stem culm release surface, 17 ... Curved recessed part, 18
...Adjustment member.

Claims (1)

[Claims for Utility Model Registration] 1. On the discharge outlet side of the bundling space 6, one surface in the direction of rotation thereof is formed as a stem culm focusing pressure sensing surface 11a, and the other surface is formed as a stem culm focusing pressure sensing surface 11a, and the other surface is formed as a stem culm focusing pressure sensing surface 11a. Emission surface 11
In the stem culm binding device, which is provided with a revolving door 11 having a rotating arm 11A formed in FIG. A curved recess 17 that opens toward the space 6 side is formed, and the curved recess 1
An adjustment member 18 is attached to change and adjust the recess amount of the revolving door 1.
1, and the pressing surface is adjustable in position with respect to the rotary arm 11A in the direction of rotation. Part 1
8 is attached so as to be relatively movable and fixed along the rotational direction. 2. Utility model registration according to claim 1, wherein the means for adjusting the amount of recess of the curved recess 17 is rocking of the adjustment member 18 with one end side of the curved recess 17 in the opening width direction as a fulcrum. stem culm binding device. 3. The stem culm binding device according to claim 1, wherein the means for adjusting the amount of recess of the curved recess portion 17 is attachment and detachment of the adjustment member 18.