JPS635462Y2 - - Google Patents

Description

[Detailed description of the invention] In a combine harvester, the grain culm is disturbed at the transition section between the reaping device and the on-site conveyance device, and the transition section between the lifting conveyance device and the threshing section feed chain.
As a result, the stock origins of the grain culms discharged from the threshing section are uneven, and if these are tied as is with a binding machine, the grain culms may fall out of the binding bundles, resulting in poor bundling.

Therefore, in the past, a fixed guide plate was set up in the grain culm transfer direction on the stock end side of the tying machine, and the stock end of the grain culm was brought into sliding contact with the guide plate in order to align the grain culms. However, simply by making the sliding contact, there is little effect of pushing the grain culms in the direction of the culm, and it was not possible to reliably align the stock base.

Furthermore, in order to improve the above-mentioned drawbacks, it has been considered that the guide plate is forced to vibrate mechanically in the culm direction from an external power source via a link or the like. Indeed, this method is considered to have a good leveling effect as long as there is no change in the length of the grain culm.

However, the length of the culm varies greatly depending on the soil conditions of each field or the difference in variety, and if a guide plate is installed at a fixed position as described above, in the case of a short culm, the base of the culm will come into contact with the guide plate. In the case of long culms, they ended up climbing onto guide boards, and in the end, they were unable to achieve their intended purpose.

In view of the above-mentioned circumstances, the present invention aims to improve the above-mentioned problems and to provide a stock alignment device that has a simple structure and is inexpensive. In addition to exciting vibration, the alignment plate is brought into direct contact with the base of the plant, and the entire vibrating body including the alignment plate automatically moves in the direction of the culm following the change.

An example of a combine harvester in which the device of the present invention is applied is explained with reference to the drawings. 1 is a grain culm discharge section of a threshing machine mounted on the combine, 2 is a culm discharge device installed in the discharge section, and 3 is a grain culm discharge device installed at the rear of the threshing machine. The tying machine fixing frame 4 is a frame of the tying machine 5, which is supported by the tying machine fixing frame 3 and can be moved and fixed in the culm direction. The binding machine 5 is
It is located at the rear lower part of the culm evacuation device 2 and moves toward the culm as the frame 4 is adjusted. Reference numeral 6 denotes a bundling conveyance device, and numeral 7 denotes a stock alignment device provided on the stock side of the bundling machine 5. The entire device is supported by the fixed frame 3 and is constructed as described below.

That is, 10 is a bracket, and the cylindrical portion 10a and the culm 10b are fitted into a shaft support 8 provided on the fixed frame 3, and are fixed with bolts 9 so as to be adjustable in the axial direction. Reference numeral 11 designates a support member for the stock alignment plate 14, and a vertical shaft 11a is protruded from the lower side of the support member.
It is configured to be able to rotate freely in the horizontal direction around the center. 32 is a tension spring, and the support member 11
and the cylindrical portion 10a, and the support member 11 is biased toward the tip of the culm. 11e is a weight integrally attached to the support member 11, and is set so that the support member 11 maintains a predetermined inertia. Reference numeral 14 denotes a stock alignment plate, one side of which is provided so as to face the part through which the stock part of the culm passes, and a hole provided at the end of a mounting arm 14b protruding from the other side. Support shaft 1 protruding from support member 11
5, and the stock alignment plate 14 is supported so as to be rotatable about the support shaft 15. Reference numeral 16 denotes a tension spring that is stretched between the support member 11 and the stock leveling plate 14, and is set to have a stronger tension than the spring 32 described above. Numeral 17 is a bolt for adjusting the tension of the spring 16, and numeral 18 is an adjustment nut, which is biased toward the base passageway, that is, in the direction of B shown in FIG. 3, with the support shaft 15 as the center. Reference numeral 12 indicates a solenoid, and reference numeral 13 indicates a limit switch, which is provided in a self-excited circuit that causes the stock alignment plate 14 to self-excite vibration. and limit switch 13
The detection roller 13b is in elastic contact with the stock alignment plate base 14a, and when the tip of the stock alignment plate 14 is at B, the switch is turned "ON", and when it is at A, the switch is turned "OFF".
becomes. Also, the plunger 1 of the solenoid 12
2a protrudes when energized and pushes up the stock alignment plate base 14a, and retracts when not energized.

On the other hand, 29 is a clutch lever, and by raising and lowering this clutch lever, the belt 25 stretched between the driving shaft pulley 24 and the threshing main shaft pulley 23 is tensioned and loosened to transmit and cut off power. When the motor 29 is in a power transmission state, the main switch 21 is turned on, and the self-excitation circuit operates via the battery 20.

The present invention is constructed as described above, and while the clutch is disengaged, the main switch 21 is OFF, and the tip of the stock alignment plate 14 is positioned on the B side due to the tensile force of the spring 16. and the limit switch 13 is the detection roller 1.
3b is pushed by the stock alignment plate base 14a and turned "ON"
However, since the main switch 21 is "OFF", the plunger 12a of the solenoid 12 is recessed. When the clutch is engaged by operating the clutch lever 29, the main switch 2
1 becomes "ON", and at that time limit switch 1
3 remains "ON", the solenoid 12 is energized, and its electromagnetic action causes the plunger 12 to
a protrudes and pushes out the stock alignment plate base 14a, the stock alignment plate 14 rotates around the support shaft 15, and the tip of the stock alignment plate 14 swings in the A direction. that moment,
The detection roller 13b protrudes outward and the switch is turned OFF, which causes the solenoid 12 to become non-magnetic.
It is restored by the action of step 6, and the tip of the stock alignment plate 14 becomes B.
swing in the direction. Then, the stock alignment plate base 14a again
pushes the detection roller 13b, the limit switch 13 is turned "ON", and the above-mentioned operation is repeated. In this way, the self-excited vibration of the stock leveling device 7 continues, the stock leveling plate 14 vibrates with the amplitude A to B, and the grain stems passing through the grain culm discharge path are The bundles are flattened, and the center portions are bundled by the binding machine 5 with the stock ends aligned in a line, and the bundles are transferred to the binding bundle conveying device 6. What is shown by the chain line in Figure 1 is
For example, it shows a state in which the position of the stock head alignment plate 14 has been moved in response to a case where the stock base length (length below the binding part) protrudes from a normal one due to threshing depth adjustment, etc. When the stock head length increases in this way, the entire stock head alignment plate 14 is pushed in the opposite direction to the binding machine 5 due to the pressure of the stock head, and the entire stock head alignment device 7 moves around the vertical axis 11a as the spring 32 moves. It rotates in the direction that resists the tensile force, that is, in the opposite direction to the binding machine 5, and the tip of the stock head alignment plate 14 moves by a length L corresponding to the protruding length of the stock head at a position A.
It vibrates with the amplitude A'-B' which is the same amplitude as -B. The grain stems having a long stem length are then tied while being hammered by the stem alignment plate 14 which vibrates self-excited at the moved position as described above, and are transferred to the bundle conveying device 6. When grain culms with shorter stalk lengths are transferred again, the tension of the spring 32 automatically rotates the entire stalk alignment device 7 around the vertical shaft 11a in the direction of the binding machine 5, thereby separating the stalks. The original alignment plate 14 continues self-excited vibration at a position corresponding to the stock length at that time.

In other words, the spring 32 is used to return the stock alignment device, and its tension is weak, and the spring 32 itself does not have the effect of pushing the grain culms together.

In the above action, when the stock alignment plate 14 tries to push the grain culm by vibration, the tension of the spring 16 is strong, so the reaction force generated from the grain culm is almost transmitted to the support member 11 via the mounting arm 14b. Work at. At this time, the support member 11 is rotatable about the vertical axis 11a, but since the weight 11e is attached to the support member 11, its overall mass is large and the inertia is large, so , stock alignment board 14
However, due to the vibration, the support member 11 receives the reaction force without rotating during the short period of time when the grain culm is pushed in the direction B in Fig. 3, and eventually the stock alignment plate 1
Step 4 is to force the grain culms together by vibration.

Further, contrary to the above, even when the stock alignment plate 14 moves in the direction A in FIG.
Due to the mass of , the support member 11 will not be rotated by the spring 32.

As described above, the present invention includes a grain culm discharge passageway leading to a tying machine, in which a grain head alignment plate is provided which vibrates and is supported by a support shaft at a portion through which the grain head part of the discharged culm passes. A spring body that urges the stock alignment plate to rotate in one direction about the support shaft with respect to the support member to which the support shaft is attached, and a limit switch that detects the rotation of the stock alignment plate. and a solenoid that rotates the alignment plate in the opposite direction to the above-mentioned rotational direction in response to a signal from the switch. This is a stock alignment device which is pivotally supported on the machine body in an energized state, and is provided with a stock alignment plate that self-excited vibration in the direction of the culm at the part through which the stock base of the grain culm passes. The grain culms to be transferred have their stems aligned with the stem alignment board, so that the stems are naturally aligned, are transferred without any resistance, are tied together without disturbance, and are properly aligned. The entire vibrating body, including the alignment plate, automatically moves in the direction of the culm by directly contacting the base of the stock and following the change, so the base alignment plate is designed to adjust the length of the base of the stock. It can automatically respond quickly and accurately to the length and shortness of time.

Furthermore, by making the alignment plate self-excited to vibrate, the present invention allows grain culms to be well aligned through vibration, and by simply supporting the vibrating device on a support member, the entire vibrating device can be adjusted to the culm length. It is now possible to automatically move the vibrator in the direction of the culm by following changes in the culm length.For example, when the aligning plate is mechanically forced to vibrate, the entire vibrating device automatically moves by following the culm length. A sensor mechanism for sensing the culm length and a driving device such as a motor for moving the entire vibrating device based on the signal thereof are not required, and it is possible to obtain an inexpensive stock alignment device with a simple configuration.

[Brief explanation of the drawing]

The drawings show an embodiment of a threshing machine equipped with a binding machine equipped with the device of the present invention, in which Fig. 1 is a plan view of the main part, Fig. 2 is a rear view of the main part, and Fig. 3 shows the operation. A plan view showing the state, and FIG. 4 is a side view of the main parts, and the attachment part to the fuselage is shown in a developed view. 5... Binding machine, 7... Stock alignment device, 11...
Supporting member, 12... Solenoid, 13... Limit switch, 14... Stock alignment plate.

Claims (1)

[Scope of utility model registration request] A support member to which the support shaft is attached, in which a grain culm discharge passage leading to a binding machine is provided with a stock head alignment plate that is pivotally supported by a support shaft and vibrates at a portion through which the stock head of the discharged culm passes. , a spring body biases the stock alignment plate to rotate in one direction about the support shaft, a limit switch that senses the rotation of the stock alignment plate, and a signal from the switch to align the plate. A solenoid that rotates the plate in the opposite direction to the rotation direction causes the stock alignment plate to self-excite vibration, and the support member is pivoted to the body while being biased toward the tip of the culm. A stock alignment device in a grain culm binding machine.