JPH0446528Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention is a technology for a device that attaches a straw binding/cutter device to the rear of a combine harvester and switches the device to cut and bundle the straw after threshing in fixed amounts. It is related to.

(b) Prior art There is a known technology that automatically switches the straw after threshing between cutting with a cutter and binding with a binding device. The technology involved opening and closing the switching cover of the cutter supply port, and electrically opening and closing the switching cover for a certain period of time using a motor, solenoid, etc.

(c) Problems to be solved by the invention When switching is performed mechanically as in conventional technology, it is difficult to stop switching or finely adjust the switching interval as necessary. Adjustments required time and effort, and parts also needed to be replaced. On the other hand, when switching is performed electrically, motors, controllers, etc. are required, which is expensive. Also,
Some users may choose an inexpensive model or a model with simple operation and want to switch manually. However, when changing from automatic switching to manual switching or the reverse switching device, the frame itself had to be replaced, or all links and frames had to be removed and rearranged, making it difficult to change easily. be.

(d) Means for solving the problem In view of the above points, the present invention is constructed as follows.

In the switching device for switching the conveyance of waste straw to the cutter device A or the bundling device B, in the case of automatic switching, a motor 43 and a speed reduction device 42 are fixedly installed on one side of the frame 41, and a switching arm 46 and a limit switch 44 are installed on the other side. , 45, the shutter 40 and the rods 48, 47 connected to the guide stay 51 are pivotally supported on the switching arm 46, and in the case of manual switching, the switching arm 53 is pivotally supported on the frame 41,
Rods 48, 47' and a wire 55 connected to a switching lever 54 are pivotally supported on the switching arm 53.

(e) Embodiments and operations The purpose of the present invention is as described above, and the structure and operations of the present invention will be explained based on the configuration of the embodiment shown in the attached drawings.

Figure 1 is a side view of the straw binding and cutter device. Second
The figure is also a plan view. FIG. 3 is a perspective view of the cutter device. FIG. 4 is a perspective view of the automatic switching device. FIG. 5 is a front view when the automatic switching device is switched to the bundling side. FIG. 6 is a front view when the switch is also made to the cutting side.
FIG. 7 is a perspective view of the manual switching device. FIG. 8 is a perspective view of the manual switching arm.

In Figures 1, 2, and 3, straw binding and
To explain the cutter device, a cutter device A and a binding device B are attached to the rear end of the threshing device of the combine, and the waste straw after threshing is conveyed to the upper part of the cutter device A by a straw removal chain 1. Cutter device A
A low-speed rotary blade 2, a high-speed rotary blade 3, and a straw removal guiding rotary body 4 are installed horizontally on the rear side plate 17, and the straw is guided by the straw removal guiding rotary body 4 between the low-speed rotary blade 2 and the high-speed rotary blade 3. It will be sent to and cut off.

To drive the low-speed rotary blade 2, high-speed rotary blade 3, etc., power is transmitted from an output pulley on the machine side to an input pulley 6 fixed to the high-speed shaft 7 via a V-belt 5. A gear 10 and an output pulley 11 are fixed to the high-speed shaft 7 and the output pulley 11 is fixed to the other end, and the gear 10 meshes with a gear 13 fixed to the low-speed shaft 12 to drive the low-speed rotary blade 2. Further, by the crank movement of a link 14 pivotally connected to the gear 13, a stock alignment plate 16 provided at the stock end side end of the bundling device B is swung left and right via a shaft 15 and the like. A gear 19 is fixed to the low-speed shaft 12 and meshes with a gear 20 fixed to a shaft 4a that drives the straw removal guide rotating body 4. A sprocket 21 is fixed to the other side of the shaft 4a, and a chain 22, A backflow preventer 24 is driven via a sprocket 23. The backflow prevention body 24 is horizontally installed above the waste straw outlet cover 9, and rotates to smoothly send waste straw to the binding device.

The binding device B is pivotally supported on a rotation shaft 32 fixed to the rear end of the side plate 17L on the tip side of the cutter device A,
The stock side is locked by a release lever 31.
That is, by releasing the release lever 31 and rotating the binding device B backward to open it, maintenance of the cutter device A is facilitated. The power of the binding device B is transmitted from the output pulley 11 to the input shaft 27 via the V-belt 25 and the input pulley 26. Power is transmitted from the input shaft 27 to the binding mission case 30 via the joint 29. When the pack car 33 is driven from the binding mission case 30 and the door 34 is rotated after a certain amount of waste straw has accumulated in the binding space C, the clutch is engaged and the needle 35 is rotated, and the knotting device is activated to knot the straw. Then, the discharge arm 36 is operated and the bundled straw is discharged.

The switching device D, which is a main part of the present invention, opens and closes the shutter 40 at regular intervals in the case of automatic switching, and switches arbitrarily by operating a lever on the driver's seat in the case of manual switching. That is, the automatic switching device
As shown in Figures 5 and 6, a frame 41 is fixed on the top of the side plate 17L on the tip side, a motor 43 is fixed on one side via a speed reduction device 42, and a bent portion is provided on the other side. Limit switches 44 and 45 are fixed to the parts 41a and 41b, and a switching arm 46 is fixed to the output shaft of the reduction gear 42. The switching arm 46 has a contact portion 46 that is bent at right angles and protrudes.
a, 46b are provided, and when the motor 43 rotates forward or reverse, the limit switches 44, 4
It is arranged so as to come into contact with the contact point No. 5.

Further, one ends of rods 47 and 48 are pivotally supported on the switching arm 46, and the other end of the rod 47 is connected to a shaft 5 rotatably suspended horizontally on an upper cover 49 as shown in FIG.
The shaft 50 is pivotally supported by an arm 50a protruding from the shaft 50, and guide stays 51, 51, 51 are protruded from the shaft 50. The other end of the rod 48 is connected to a connecting rod 52.
The shutters 40, 4 are connected to the connecting rod 52.
The bases of 0.0 and 40 are pivoted at appropriate intervals. The shutters 40, 40, 40 have rotating shafts 53,
It is possible to rotate around 53, 53.

In such a configuration, if the interval between normal rotation and reverse rotation of the motor is set using the controller of the operation box, when the contact portion 46b is in the position where it is in contact with the limit switch 4 as shown in FIG. The rod 47 is pulled to lift the guide stay 51, the rod 48 is pushed and the shutter 40 is closed, and the waste straw passes over the shutter 40 and is guided by the backflow preventer 24 to the bundling device B. It is sent. When cutting straw after a certain period of time has elapsed, the motor 43 is rotated in the normal direction and when the contact portion 46a contacts the limit switch 45 as shown in FIG. 6, the rotation of the motor 43 is stopped and the rod 4
7 is pushed, the guide stay 51 is lowered, and the third
As shown in the figure, the straw is prevented from being fed to the outlet cover 9, and the rod 48 is pulled, the shutter 40 is rotated and opened, and the straw falls to the cutter device A and is cut.

On the other hand, in the case of manual switching, a rotating shaft 53c of a manual arm 53 shown in FIG. 8 is pivotally supported on the frame 41, and a pin hole 53b of the arm 53
A rod 48 is pivotally supported on the arm 53, and a wire 55 and a rod 47' are pivotally supported on a pin 53a protruding from the arm 53. The wire 55 is connected to a switching lever 54 provided on the seat, and the rod 47' has the same length as the rod 47 and is plate-shaped so that it can be pivotally supported together with the wire 55.

When manual switching is performed with such a configuration, when the switching lever 54 is rotated and the wire 55 is pulled, the rod 47' is lifted, the guide stay 51 is lowered, and the rod 48
is pulled, the shutter 40 is opened, and the waste straw is sent to the cutter device A. Also, when the switching lever 54 is rotated in the direction of lowering the wire 55, the rod 47' is lowered and the guide stay 51 is lowered.
is raised, the rod 48 is pushed, and the shutter 40
is closed, and the waste straw is sent to the bundling device B where it is tied.

(f) Effects of the invention With such a configuration, the present invention has the following effects.

First, the device for switching between bundling and cutting can now be easily reconfigured between automatic and manual switching by simply replacing a few parts, allowing us to quickly respond to user requests. It was summer.

Second, since there are fewer parts to replace, changes can be made at low cost, and inventory adjustment has become easier.

[Brief explanation of the drawing]

Figure 1 is a side view of the straw binding and cutter device. Second
The figure is also a plan view. FIG. 3 is a perspective view of the cutter device. FIG. 4 is a perspective view of the automatic switching device. FIG. 5 is a front view when the automatic switching device is switched to the bundling side. FIG. 6 is a front view when the switch is also made to the cutting side.
FIG. 7 is a perspective view of the manual switching device. FIG. 8 is a perspective view of the manual switching arm. A... Cutter device, B... Binding device, 40...
... Shutter, 41 ... Frame, 42 ... Reduction device, 43 ... Motor, 44, 45 ... Limit switch, 46, 53 ... Switching arm, 47,
47', 48...rod, 51...guide stay,
54...Switching lever, 55...Wire.

Claims (1)

[Scope of utility model registration request] In the switching device for switching the conveyance of waste straw to the cutter device A or the bundling device B, in the case of automatic switching, a motor 43 and a speed reduction device 42 are fixedly installed on one side of the frame 41, and a switching arm 46 and a limit switch 44 are installed on the other side. , 45, the shutter 40 and the rods 48, 47 connected to the guide stay 51 are pivotally supported on the switching arm 46, and in the case of manual switching, the switching arm 53 is pivotally supported on the frame 41,
A straw bundling and cutter switching device characterized in that a wire 55 connected to rods 48, 47' and a switching lever 54 is pivotally supported on the switching arm 53.