JPS5998618A - Handling depth control apparatus of combine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a working depth adjusting device for a combine harvester that enables emergency manual operation using a control lever even when the working depth is being adjusted by a power source such as a motor.

Previously, the technology that enabled emergency manual operation was disclosed in Japanese Patent Application Laid-open No. 5
This device is disclosed in Japanese Patent No. 4-91425, in which a link is operated in the center of a holding conveyor with a front sprocket shaft as a rotational fulcrum, and a link connected to an eight is pivoted, and a motor is used to rotate the link. Since the lock pin of the operation lever is locked between the teeth of the gear being rotated, it has the following disadvantages.In the case of an emergency adjustment in which the operation lever is moved while the gear is being rotated by the 3t1j+ motor, the lock pin cannot be It is not possible to quickly perform an operation to remove the gear from between the teeth and engage between another tooth of the rotating gear, and the user must often hold the operating lever by hand, making it difficult to concentrate on other operations.

・In order to provide a control lever at or near the operation control section, a complicated link mechanism, etc. should be interposed between the operation control section and the clamping conveyance body so that the conveyance section is bypassed and the conveyance of grain culms is not obstructed. Therefore, the equipment becomes larger and more complex.

+, 3+ Since the peripheral part of the gear is used, the amount of handling depth adjustment (one vertical drop of the end of the clamping/carrying unit) relative to the amount of motor rotation (rotation angle of the gear) depends on the position of the operating lever. Because it changes sharply, a complicated control circuit is required to keep it constant.

The present invention aims to solve these shortcomings all at once, and to simplify the device and improve its operability.

Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.

1 and 2, a side view and a plan view of a combine to which the handling depth adjustment device of the present invention is applied are shown, and the machine body ( 2), a reaping conveyance section (A) is arranged in front of the reaping conveyance section (A), and a driving operation section ('
A threshing section (C) is arranged in series behind the reaping conveyance section (A), and a straw discharge section (D) is arranged behind the threshing section (C). Furthermore, a paddy storage section (Fj) is provided behind the operation section (B) adjacent to the threshing section (C).

Reaping conveyance unit (h), l is a lifting case (4) installed diagonally behind each grass dividing plate (: () at the frontmost part, and a handle installed below this lifting case (4). The cutting blade (5), the star foil (6) located above each cutting blade (5), and the raking heel 1 to (7), and The lower conveyance cheno (8
), and a vertical conveyor cheno (pinching conveyor) (9) installed diagonally from a position close to the rear end of the lower conveyor cheno (8).
and the threshing section (C) from the north of the lower conveyance chain (8).
The tip conveyor (1) is installed obliquely toward the supply port (11) of the
0).

In addition, the threshing section (C) has a foot chain (12) and a foot chain (+3) on one side opposite to the operation section (B), and a foot chain (+3) at the rear of the supply port (11). The starting end (1,
2a'l is located close above the rear part (9d) of the vertical conveyance chain (9), and the culm conveyed by the vertical conveyance chain (9) is transferred from the rear part (9a) to the foot chain (J2). It is adapted to be inherited to the starting end (12a).

In this embodiment, the rear part (9a
) side is a support bracket (15) installed upright on the fuselage (2).
) is rotatably supported on the end of the cage via the arm (16), and as shown in FIGS. Control lever for manual operation (17
) are connected and fixed, and this operation lever (17
) is a substantially linear screw conveyor (spiral conveyor body) ('+
8') from the side, and when the front side of the vertical conveyor cheno (9) is swung by rotating the screw conveyor (18), the vertical conveyor cheno (9) ) rotates, and this rear part (9d)
is adapted to approach and move away from the starting end (12d) of the foot chain (12). At this time, the contact point between the operating lever (17) and the screw conveyor (18) is moved in the longitudinal direction of the operating lever (17).

In addition, in this embodiment, as shown in FIG. ) at the base of the screw conveyor (18) by constantly pressing this holding plate (19).
) is provided with a spring (20) to prevent it from coming off, and the presser plate (19) and the spring (20) constitute a biasing mechanism.

Furthermore, as shown in Fig. 2, the supply port (1) of the threshing section (C)
1) includes a processing depth detection device (2) that detects the processing depth of the shell culm.
2) is provided, and this handling depth detection device (22) is provided with a cross plate switch (2 phantoms, a neutral switch (24) and a deep handling switch (25), respectively, and a driving operation section. In (B), the control column (26) includes a cross board indicator lamp (27), a neutral indicator lamp (28), and a deep handling indicator that light up corresponding to each of the above-mentioned switches (23), (24), and (25). A lamp (29) is provided, and a main switch (30) and an automatic adjustment switch (31) are provided for operating the handling depth detection device (22) and the forward/reverse motor (M).
) and a semi-automatic adjustment switch (32).

Next, a circuit for automatically or semi-automatically operating the handling depth adjusting device according to the above embodiment is as shown in FIG.
@ Source (33) is connected to automatic adjustment switch 7 via main switch (30), notch (31) and semi-automatic adjustment switch 1 inch (32).
) in one row, and the automatic adjustment switch (3+)
l: l: Regular contact point of HU switch (23) (' 23
d'), the normally open contact (24a) of the medium switch (24)
) and the normally open contact (25a) of the deep handling switch (25) are connected in series, respectively, and a switching transistor (35) is connected in series to turn on/off a changeover relay (34) that switches the electrodes of the forward/reverse motor (~4). When connecting the 1st open contact (25a) to the base, the 1st to 2nd contact (25a) is turned on when the operating lever (17) reaches the end position of the screw conveyor (18).
to the switching l-run raster (35) via the
short-circuit the ground to ground. .

1. Also, connect the normally open contact (24c) of the neutral switch (24) to the normally open contact (23d) of the cross plate switch (23), and switch the electrodes of the forward/reverse motor (M). A 11] open contact (24o') is connected to the base of the switching transistor (38) of the screw relay (37) that momentarily stops the forward/reverse motor (M) of the lever, and the screw controller The base of the lever switch lid 1 helancing sister (38) is short-circuited to ground via the stroke end inch (39) which is turned on when the operating lever (17) reaches the lowest position of the hair (I8).

Further, the switching relay (34) shown in - is energized, and only occasionally, the switch relays (37) are energized at the same time.
The base of one switching transistor (35) is connected to the base of the other switching transistor (38) via a diode (40) te, and the switching relay (
34) Relay switch (37d) for glue lace inch (34a), (34b) and swivel relay (37)
Connect the forward/reverse motor (M) to the power source (33) via the breaker (41), which disconnects when a load above a certain level is applied to the forward/reverse motor (3711), and connect each contact +23a. ), (24r+>, (25a), when each relay (34'), (37) is activated, the forward/reverse motor (,v+) rotates in the forward direction, thereby causing the screw conveyor (1B) to rotate in the forward direction. and then press the operating lever (17) or I.
-'71 L, displace the rear part (9d) of the vertical conveyance cheno (1) from the deep handling position to the shallow handling position, and connect the screw 1 to the tube relay via each contact (23a) and (24c). When (37) is activated, the forward/reverse motor (M) reverses.

With this, the screw controller (18) is operated in the reverse direction and the eight (17) is lowered, and the rear part (9d) of the vertical conveyance cheno (9) is moved from the shallow handling position (1v) 6 to the deep handling position. It is designed to be displaced.

Next, the half-white M connected to the automatic adjustment switch (31) and the power supply (33) in the 46th column through the main switch (30)
The J adjustment switch (32) has each contact (25, 1), (
A pair of contacts (32) connected to the non-power side of 24 (・),
;i'), (32b), and 1 is an automatic adjustment switch (
32) is connected to one contact (32d), the forward/reverse motor (M) rotates forward, and the other contact (32b)
The forward/reverse motor (~1) reverses when the resistor is connected to 7.
The handling depth can be adjusted by , , and lL, and the non-power side of the main switch (30) is equipped with a crosspiece switch (23), a neutral switch (2/l), and a deep handling switch. (25) normally open contacts (23a), (24a)
, a normally open contact (2,'+a) that opens and closes in conjunction with (2,'+a)
23b), (24b), ('251)) are connected, and these normally open contacts (23b), (24b)
, (251. In addition, ]-recording open contact 23b ), (241)), (2,'+ b
), one normally closed contact (42a), ('42b), (43a), (4
31+), (44:+).

Two relays (42), (44b') that open (44b')
3) and (44) are connected, so that when the cross board sui-sochi (23) is on, the relay (4) is connected.
2) is excited and cuts off the power to the neutral indicator lamp (28) and deep handling indicator lamp (2!), and the neutral
4) When the relay (43) is turned on, the relay (43) is energized and the plate forming indicator lamp (27) and deep handling indicator lamp (29) are activated.
Cut off the current to /\1, and when the deep handling switch (25) is on, energize 1 l-(44) to turn on the plate forming indicator lamp (27) and the neutral indicator lamp (28) /\. It is designed to cut off electricity.

This invention is constructed as described above (11ζ?1:)
First, observe the length of grain grains and ears in the field, and manually operate the operating lever (17) to immobilize the front part of the vertical one-ship feed chain (9) in the - position to determine the handling depth. After roughly adjusting the depth, the main switch (30) and automatic adjustment switch (31) are turned on to perform the reaping work, and the cutting depth is controlled by the cutting depth detection device (22). In addition to being able to take off the grain in the threshing part (C) while matching the length of grain grains and ears in the field, long grain grains or short grain grains that are outside the range that can be automatically adjusted can be removed from the supply port (11). When 1 is also entered, either S] Heroku End Sue Inch (36L (3
9) is activated to support the vertical conveyance cheno (9) in a displaced state to the maximum position for shallow handling or deep handling, and by switching the semi-automatic switch (32), the vertical conveyance cheno (9) is further moved. The handling depth can be adjusted by displacing the position of.

Further, according to the present invention, the presser plate (19) is attached to a splinter (
To free the operation lever (17) by overcoming the pressing force of 20 degrees and rotating it, operate this operation lever (17) by hand, giving priority to automatic or semi-automatic operation. When an operator is on board separately from the driver, the control lever (17) can be moved to the driving control section (
If manual operation is enabled from B), it will be possible to use the converter even if the electric circuit is broken, and it will be possible to respond quickly if emergency depth adjustment is required. As mentioned above, the present invention provides a threshing section (C) in series behind the reaping conveyance section (△),
A threshing section (C) is connected to the reaping conveyance section (A) from behind the cutting blade (5).
) A flexible support carrier (9) is installed over the starting end of the foot chain (12) provided on the − side of On the other hand, in a combine harvester that is equipped with an operation part (13), the rear part of the above-mentioned: 1.
Support, 1°iii part 1. The bases of the two operation levers (7) are connected and fixed, and the tip of the lever (17) is connected to the substantially linear spiral conveyor body (18) that can rotate in the positive direction. Since the lever (17) is locked in the movement 10jt3 in the longitudinal direction, 1(d)V! has the following excellent effects. , suddenly hand'? When performing +9J operation, press the operating lever (
17) can be done extremely quickly and easily by simply engaging and disengaging.

(h) Without intervening a complicated Tj link mechanism, the operation control unit 1) or its neighboring value 1tjt can be operated to /<-(17
> can be arranged, and the entire device can be simplified.

((G) Even without implementing the means of Special Feature 811, the relationship between the amount of rotation of the seven spiral conveyors (]8) and the moving part of the one-hold conveyor (9) is independent of the position of the operating lever (I7). Jmi, operation because it is kept to be a certain number.

[Brief explanation of the drawing]

Figure 1 is a side view of a combine to which the C7 handling depth adjustment device according to the embodiment of the present invention is applied, Figure 2 is a plan view of Figure 1, and Figure 3 is the handling depth of this embodiment. 2 is a partial plan view showing the main parts of the fear device 11, 4th 1 is an explanatory view showing the principle of the handling depth adjustment device of the embodiment, and 5 is a partial plan view showing the principle of the handling depth adjustment device of the embodiment. 6M is a circuit diagram showing an example of the circuit of the embodiment 1-. (C) Reaping transportation section (B) ... Driving section (
C)... Threshing section (5)... Grass knife (9)
...Vertical conveyor cheno (41'!: carrier conveyor) (12)・
...Feet chain (17)...Operation lever

Claims (1)

[Claims] A threshing section (C) is provided in series behind the reaping transport section (Δ), and a threshing section (C) is installed in the reaping transport section (Δ) from the rear of the cutting blade (5).
A clamping conveyance body (9) is constructed over the starting end of the foot chain (12) provided on the - side of C), and the clamping conveyance body (9) is installed on the side of the reaping conveyance section (Δ) where the foot chain (12) is located. is a combine harvester provided with a driving operation part (B) on the opposite side, the rear part of the clamping conveyor (9) is pivotally supported, the base of the operating lever (17) is connected and fixed to the front part, and the lever (17) is ) is connected to the substantially linear spiral conveyor body (18) that can be rotated in forward and reverse directions at the point of contact between the two or the lever (18).
7) A handling depth adjustment device for a combine harvester, characterized in that it is movably locked in the longitudinal direction.