JPH036178Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is designed to be used in a combine harvester for two purposes: cutting with a cutter and scattering it on the field, and bundling it after drying for use or as feed. A cutter device and straw binding device are placed together,
This invention relates to a technology that makes it possible to switch between the two.

(B) Prior art The technology of arranging a cutter device at the rear of a combine harvester and arranging a straw tying machine attached to the rear of the cutter device is disclosed in Japanese Utility Model Application Publication No. 57-102947 and
Techniques such as those disclosed in Japanese Patent No. 57-104832 are known.

Furthermore, there is also a known technology in which a detection switch is provided to detect clogging of the straw binding machine.
For example, there is a technique described in Japanese Patent Application Laid-open No. 102325/1983.

(c) Issues to be solved by the invention In order to solve the problems of conventional clogging detection switches, this invention makes it easy to clean and remove the clogged straw when a clogging occurs around the clogging detection switch. The clogging detection switch part can be retracted from the straw removal inlet passage.

(d) Means for solving the problem The purpose of the present invention is as described above, and next, the configuration for achieving the purpose will be explained.

The cutter of the shutter 2 switches the intake guide 1 that guides the straw to the knotting part of the straw tying machine in the direction of the entrance passage of the straw tying machine, and the direction of guiding the straw between the cutter device and the straw tying machine. When the device is clogged, the intake guide 1 is biased by a spring and protrudes into the opening rotation locus. The intake guide 1 is configured to be pushed up against a force, and a clog detection switch is disposed at the position where the intake guide 1 is pushed up and rotated, and when removing clogged straw,
The clogging detection switch 5, the switch support 6, and the intake guide 1 can be retracted from the entrance passage of the straw tying machine at the same time.

(E) Embodiment The purpose and structure of the present invention are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

Figure 1 is a side perspective view of the cutter device and binding device placed side by side at the rear of the combine, Figure 2 is an enlarged side view showing another structure of the biasing part of the intake guide, and Figure 3 is the same as Figure 2. FIG. 4 is a perspective view of the binding device with the intake guide released to remove a jam in the cutter portion, and FIG. 5 is a plan view of the intake guide.

First, let's explain from Figure 1.

In FIG. 1, a switch support 6 is normally fixed with wing bolts 7, and a clogging detection switch 5 is fixed to this switch support 6.
The switch operating rod 5a of the clogging detection switch 5 is pressed and operated by the rotation of the intake guide 1.

The intake guide 1 itself is made of a spring plate and has a biasing force.

When a blockage occurs at the entrance A to the binding device, the intake guide 1 is pushed upward against the spring force, and the blockage detection switch 5 of the switch support 6 is turned on.

Then, the straw entering the cutter device consisting of the rotary blades 23, 23 becomes clogged at position B, and in order to remove the clog, the shutter 2 for switching both the cutter and bundling is rotated greatly to position 2 to clean it. If you want to make the work easier, if the switch support 6 is fixed with the butterfly bolt 7, it will not be possible to open it wide, so remove the butterfly bolt 7 from the screw plate 8, free the switch support 6, and pull it upward. Then, the locking rod 15 and locking spring 12 are fitted and fixed to the switch support rod 14 of the binding device.

As a result, the switching shutter 2 for both cutting and bundling operations starts from the 2'' position to notify the clogging detection switch 5 of the clogging state in the cutting device.
Furthermore, the release can be extended to the 2'' position, making it easier to clean the straw clog in section B of the cutter device.

Reference numeral 22 denotes a straw removal chain, in which the straw that is held by the feed chain passes through the handling drum, is threshed, and is carried to the top of the cutter device by the straw removal chain 22. .

First, when cutting with a cutter device, rotate the cutter/binding switching shutter 2 to the 2' position, open the shutter 2 position, and let the waste straw enter the rotary blades 23, 23 of the cutter. go.

There is a high possibility that the waste straw will become clogged in position B when the waste straw is cut with a cutter.

When the straw is clogged at position B, the clogged waste straw rotates the shutter 2 to escape to the 2'' position, and the opening rotation pushes the clog detection switch 5 to notify the clog.

Furthermore, in order to remove the clogged straw at position B, the shutter 2 needs to be rotated to position 2.

This configuration also allows the shutter 2 and the switch support 6 to be rotated open during cleaning.

26 is a cutter drive pulley, and 25 is a binding drive pulley. The V-belt from the threshing device is input to the cutter drive pulley 26.

The binding device includes a binding mission case 19, a needle 20, a discharge rod 16, a knot cover 11, a knot cover side guide 9, and the like.

Reference numeral 13 designates a pivot for the base of the discharge rod, 4 a clogging alarm buzzer, and 12 the aforementioned locking spring.

Further, 17 is a cover that covers the rotating part of the discharge rod of the binding device.

Next, the configuration of the intake guide and alarm switch shown in FIGS. 2, 3, and 4 will be explained.

The intake guide 1 is pivotally supported by a pivot shaft 18 at the tip of a support rod 14 so as to be able to rotate up and down.

The intake guide 1 is urged downward by the urging spring 28 and the spring guide 27.

When a blockage occurs in section A in FIG. 1, the intake guide 1 is pushed to position 1' and the blockage detection switch 29 is operated to sound a warning buzzer or stop the engine.

Furthermore, as mentioned above, a blockage occurred at the B position of the cutter section, and the shutter 2 was moved to the second position for cleaning.
If you want to rotate to the position shown in Fig. 3 to 4.
As shown in the figure, the biasing spring 28, the spring guide rod 27, and the switch support 30 are all rotated significantly upward.

For this purpose, a large diameter hole 32a is provided in the spring stopper 32.
is opened so that the biasing spring 28 can pass through the opening.

To change from the installed state shown in Fig. 3 to the released state shown in Fig. 4, remove the wing bolts 31, 31 from the spring stopper 3.
2 from the screw hole and remove the switch support. 30a, 30a are insertion holes for butterfly bolts 31, 31 provided in the switch support 30.

As a result, the spring guide rod 27, the switch support 30, and the switch 29 are all connected to the spring stopper 32.
It is possible to remove it from its attached state and lift it upwards. All that is required is to fit the locking rod 15 into the locking spring 12 in the raised state and stop the locking rod.

When the intake guide 1 is released, the blockage detection switch 29 is raised upward together with the biasing spring 28, so the intake guide switch operation piece 34 does not touch the blockage detection switch 29.

In FIG. 5, reference numerals 46a and 46b are stock intake guides that guide the stock portion, and are made of leaf springs.

(f) Function of the invention When cutting straw with a cutter, the switching shutter 2 is placed at the 2' position. Then, the waste straw flowing from the straw removal chain 22 falls directly below, enters the cutter rotary blades 23, 23, is cut, and is left as it is in the field.

In the case of cutter work, the straw often becomes clogged at position B, and in this case, the shutter 2 is pushed by the clogged straw and escapes to the position of shutter 2'', making it possible to rotate to open. Therefore, the escape rotation pushes up the intake guide 1, activates the clogging detection switch 5, and issues an alarm.

If the straw becomes clogged in position B and causes the shutter 2 to escape and rotate to the 2'' position and overflows to the bottom of the intake guide 1, the operator must remove the discharge rod cover 17 and turn the switch. Remove the support 6 at the butterfly bolt 7, rotate it back a lot to create some extra space, open the switching shutter 2 to position 2, insert your hand through this space, and pull out the waste straw. .

When the switching shutter 2 is to be rotated to position 2, the switch support 6 is rotated upwardly and the locking rod 15 is fitted into the locking spring 12 to release it from the fixed state.

When the next binding operation is to be carried out, the switching shutter 2 is fixed in position 2 and the entrance to the cutter is closed.

Then, the waste straw passes above the switching shutter 2, along the upper intake guide 1, and along the lower deck 40 toward the door 21 at the node.

The door is a knotting clutch, and when a certain amount or more is collected, the clutch is engaged, the needle 20 rotates, and knotting is performed by the bill and boulder inside the knotting cover 11. The intake guide 1 is inherited from this tuberosity cover 11, and the tuberosity cover side guide 9
a and 9b are protruded.

In addition, the intake guide 1 senses a blockage at position A and operates the blockage detection switch 5 to turn off the engine and issue an alarm.

If the straw becomes clogged in the cutter at position B, causing the shutter 2 to escape and turn to the 2'' position and overflowing to the bottom of the intake guide 1, in the case of Fig. 1, The wing bolt 7 of the intake guide 1 is removed, the intake guide 1 is rotated upward about the pivot shaft 18, the locking rod 15 is locked to the locking spring 12, and an extra space is created.

In the case of the configuration shown in Figure 2 or below, wing bolts 31, 3
1 allows the switch support 30 to be removed and the intake guide 1 to be rotated upward with sufficient margin.

(g) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, when a blockage occurs in the cutter device, it is necessary to widely open the shutter 2 to the rear and clean and remove the clogged waste straw inside.In this case, the blockage detection switch 5 If the intake guide 1 is present, the shutter 2 cannot be rotated open.

In the present invention, the clog detection switch 5, the switch support 6, and the intake guide 1 can be retreated from the straw removal passage at the same time, so the shutter 2 can be opened wide and the inside of the cutter device can be cleaned. .

Second, in the straw tying machine, even if a blockage occurs at the inlet, the blockage detection switch 5 and the intake guide 1 can be moved back to relieve the pinching of the straw in that part. This made it easier to clean and remove waste straw.

[Brief explanation of the drawing]

Figure 1 is a side perspective view of the cutter device and binding device placed side by side at the rear of the combine, Figure 2 is a drawing showing another structure of the biasing part of the intake guide,
3 is a perspective view of FIG. 2, FIG. 4 is a perspective view of the binding device with the intake guide released for removing jams in the cutter portion, and FIG. 5 is a plan view of the intake guide. 1...Intake guide, 2...Switching shutter, 4...Alarm buzzer, 5, 29...Clogging detection switch, 6, 30...Switch support, 28
...Biasing spring.

Claims (1)

[Scope of utility model registration request] The cutter of the shutter 2 switches the intake guide 1 that guides the straw to the knotting part of the straw tying machine in the direction of the entrance passage of the straw tying machine, and the direction of guiding the straw between the cutter device and the straw tying machine. When the device is clogged, the intake guide 1 is biased by a spring and protrudes into the opening rotation locus, and is rotated to open due to straw clogged in the inlet passage of the straw binding machine or clogged during cutter operation. The intake guide 1 is configured to be pushed up against spring force, and the blockage detection switch 5 is disposed at the position where the intake guide 1 is pushed up and rotated. A straw binding machine for a combine harvester, characterized in that a body 6 and an intake guide 1 can be retracted from an entrance passage of the straw binding machine at the same time.