JPS5836313A - Reamer - 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 invention is based on the detection result of a ground-type cutting height detection sensor attached to the mowing section, which is driven by a running wax and is capable of raising and lowering, so that the mowing section can be brought within a set height range by itself. A mechanism for mechanically linking the sensor and a switching valve of a hydraulic cylinder for raising and lowering the trunk of the reaping section is provided in order to maintain the operation, and one operating tool is provided between the switching valve and the front operating tool. When positioned at one end of the operation path 1, 11J
It contacts the sensor of the switching valve to prevent the reaping part from moving from the reaping part raising position to the reaping part lifting stop position, and when it is positioned at the other end of the operation movement path, the sensor of the switching valve When the interlocked reaping section Fi4 position contacts and prevents the operation J from the reaping section lifting/lowering stop position pupil side and is positioned at the center position t11 of the operation movement path, the operation wJ interlocked with the sensor of the switching valve The present invention relates to a reaper that is provided with a linkage mechanism that allows for.

In such a reaper, it is preferable to automatically raise and lower the reaping section based on the sensor at a relatively low speed in order to prevent malfunctions due to overrun, but it is recommended that the automatic raising and lowering of the reaping section be done at a relatively low speed when the machine is turning at the end of the field. In order to improve harvesting efficiency when using a cutting tool, it is desirable to raise and lower the reaping section as quickly as possible.

The purpose of the present invention is to reasonably satisfy both of these demands.

In the reaping machine according to the present invention, in the reaping machine according to the present invention, the switching valve is placed at each of the intermediate operation positions from the reaping part lifting and lowering stop position to the reaping part raised position and the reaping end position, and the reaping part R1 raised position and When the operating tool is located at the center position, the sensor of the switching valve Did you have 1 luck? : It is characterized in that it is configured to restrict the wound from coming into contact with the range between the intermediate positions of the t-double movement.

In other words, when the switching valve is used as a sensor for automatic lifting and lowering, the operating range of the switching valve is restricted between intermediate positions, so that the automatic lifting speed is lower than the manual lifting speed. However, in particular, it is not necessary to install the above-mentioned position regulating metal or a special operating tool for that purpose, but to perform it with manual operation that is not used when going up and down at the moment, but with a simple structure. In addition, the lifting speed can be easily and reliably slowed down during self-help lifting by switching the hand IjJk' tool to the operating position rIt in front of the second position, and the lifting speed can be easily and reliably reduced. When ascending and descending, the speed of elevation can be increased.

Hereinafter, embodiments of the present invention will be described based on the drawings.In the front part of the traveling main machine (41), which is equipped with a crawler traveling device (l), an FIR removal device (2), and a passenger driving section (3), 'i4
L tool +61, a raising device (6), a clipper type reaping device (7), and a device for transporting and supplying the harvested grain to the threshing device (2) mf81? r rIIi In a combine harvester (an example of a reaping plate) in which a reaping section (9) that has been cut is connected in a row so that the reaping section (9) can be raised and lowered by a drive, a ground-type cutting height sensor t is attached to the reaping section (9).
ltll is provided, and the sensor 01 and the reaping section (
9) is provided to mechanically link the switching valve tlW of the hydraulic cylinder 0υ (one example of a fluid pressure cylinder) for lifting the trunk side, and the rg free hand 1111J operation lever (141 (hand WJJ
An example of an operator) is provided, and this assistance operation lever (1
41 is connected to the switching box U811.

I] 1f sensor (IUI is a pair of left and right grounding bodies (10m) each swinging up F 1g1J with their front parts between the fulcrums, depending on the height above the ground hairstyle of the reaping part (9), (
10a) and throw this grounding body (10m), (
A spring (Job) and (10b) are provided to swing and bias each pair (10m) in the direction of contact with the ground.
The grounding body (10m), (10M)
The working posture of placing and supporting the pair in the storage position and the grounding body (1
0 m), (10 m) and a retracted non-operating posture that allows a pair of up-and-down movements of 11 J.
0m), (10m) vs. t - above-mentioned retracted position - lifting swing 1
The mechanism that regulates both the above-mentioned postures is the #IIw'J axis (&) of the lifting lever.
A lower member that also serves as a protector is provided along the circumference.
It constitutes a recess U (1B') for engaging the lifting rod ubl in each of the above-mentioned components, and also
It is constructed by providing a spring curve that urges movement in the ti+t− locking direction. and (Sl) are wires and springs that move during the lifting and rearing operations to self-restrictively and reversibly switch to the active position.

The niJM hydraulic cylinder UU operates the reaping section (
It is a single 11+J type cylinder that raises 91.

The switching valve uz in No. 911 has a rising spool (12A") and a descending spool (12A") which are biased toward one end of the moving path.
12B) is provided, and both spools (12A) and (12B) can be selectively operated by rocking against the bias. j'J member (12C) is provided.

When the rising side spool (12mm) is located at one end of the shuttle 1 path, only the tank port m is communicated with the pump port 1P), and when it is located in the middle of the moving path, the cylinder port (C) is connected to the pump port IPI. ) only in a half-open state, and when located at the other end of the movement path, pump port 1
P) is connected to the cylinder port extension) in a fully open state.

Note 91 When the F Igawa spool (12B) is located at the other end of the moving route, it cuts off the communication between the tank port (1) and the cylinder port (C1), Place the valve body (12D) that closes the X!! passage (12 holes) of ports (4) and (C) in half-open'
120) formed in the aperture passage (12b) 1 through both said ports (n).

By connecting the extension 1 and being located at the other end of the movement path,
The valve body (120) is fully opened #IJ to open both the ports (
1), which causes a delay of 1clli.

In other words, the switching valve (2) has both spools (12A) and (1
2B) at one end of the moving path, the supply of pressure oil to the cylinder oil and the oil return are cut off, the reaping 5 (9) is stopped moving up and down, and the lifting spool (12 mm) is moved.
The reaping section (91
By slowly raising the spool (12A) and positioning the raising spool (12A) at the other end of the movement path, the reaping part (91) is rapidly raised, and the lowering spool (12B)
By positioning it in the middle, the reaping part 1! dl km
By placing the lower spool (12B) at the other end of the I-J path, the reaping section (91) can be rapidly lowered. - in the figure is a hydraulic pump.

The first linkage mechanism oJ is configured to control the swing wI of the switching valve (2).
Spring c that swings and urges the Js material (12C) to the upward side
! 11, and a release wire that swings the switching valve u3 to the F lowering side and connects the other end of the inner wire to this release wire.
Only when both 0a) and (IOa) have swung higher than the position equivalent to the cutting height setting f[1ktl, the release wire -
When the inner wire is loosened and activated, and at least one of the grounding bodies (It]a) and (IOa) swings downward by more than a distance equivalent to the setting range, the inner wire will not release. The elongated hole 1 (2) is connected to both grounding bodies (10 m) so that the wire can be tensioned.

The figure above shows the lever for changing the cutting height by changing the position of the outer wire end of the release wire in the longitudinal direction of the wire. Moving member 2B) Spring CZ for urging
The spring is fixed to the other part of U, and as the smoke swings in the direction of high cutting. It reduces the phantom biasing force.

The second linkage mechanism U described in III has the swinging member (l)
A rod 3n is provided on the shaft (2) of the shaft (2) to link the member arm held by the company only in turn 1 with the hand #gJ operating lever (141), and the lever (141 is connected to its operating swing path - the first When it is moved to position tl11 (P,), the sensor (moved to II) of the switching valve 04, that is, the sensor (moved to When the lever (141) is in the second position (Pg) at the other end of its operation swing path, the pin ( 2) and prevents the swinging member (12G) from swinging from the lowering position (2) to the rising stop position (■), which moves in response to the sensor sound of the swinging member (12G).
The lever circle is in the front I ¥981 position w (Pl) and the second position (
When the rocking member (12C) is located at the third position (P,) between the
)'s sensor (II), and lever u4J was positioned at the fourth position (P4) between the first position tjIt(p,) and the third position (P,). When the sensor (11jK) of the member (12c) comes into contact with the bottle (2)
A pair of contact movement members (2) and (2) are provided to prevent the swing #Ih from the lower position (2) to the lower position (2).

Figure Churin is the assistant distance control bar u41t - 2nd place m
(P”) is a spring that swings and biases, and (2) is
This spring ball is operated by Moeki hand wJ against the biasing force of the spring peak to hold the bar circle at the third position 11m (P,).

Therefore, when the lever (14+) is in the third position (P), the sensor of the NTS recording VJ member (12G) is activated. (The swing 1 that has moved in the direction of ), the lever U ship
An insertion/extraction pin (2) for connection and release is provided on the shaft in the state where it is placed in the position of the pin (P).

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the reaper according to the present invention, and show the first embodiment of the reaper according to the present invention.
The figure is a side view of the main parts, Figure 2 is a hydraulic circuit diagram for Karishirobu Noboru,
The third cause is the operation system diagram of the switching valve, Figure 4 is an enlarged sectional view of the mounting part, Figure 5 is a sectional view taken along the line V-V in Figure 84, and Figure 6 (A).
, (Rof, (c), ni) are rμ sub-explanatory diagrams. (・1)・・・・・・Running σ main unit, (9(・・・・・・Kaitorito, (11・・・・Grounding cylinder, (2)・・・・
...Switching valve, u, il...Mechanical linkage mechanism, u
41...Planning operator, u811...Linkage mechanism.

Claims (1)

[Claims] How many meters does it run? 1 entrance/exit in +41" Reaping part f connected to Noh
Based on the detection result of the ground-type cutting height detection sensor OI attached to 9+ K, the sensor (IW) and the cutting section (!J
) of the drive 1 lifting river fluid pressure cylinder (III switching valve (l)
In addition to providing a mechanism (1) that connects ρ and T by fitting, a mechanism (1) is provided between the switching valve U and the manual operating tool U, and there is a , ), the sensor of the switching valve Oz (i! on the chest).
! ! 111J's rising position of the reaping part 111 (from [1 to reaping stop 4'M, direct) side is prevented by contacting rl:l &J', and the operator 1 moves to the other end position of the sea bream path (Pl )
When the sensor C of the above 9" replacement soup (I) is
l1jK Kariganto position 1#taJ) which was served by K, prevents the movement of Jkf woman to the Karutorito Shoutaku stop position * side, and moves to the central position CP of the operational movement route, position +4. When
The sensor of the switching cell u moved to ilt# wJ
In a reaper that is provided with a linkage mechanism a= that allows for
Set the switching valve (2) to the reaping section lifting/lowering stop position? ! f (from Nl to the rising position of the reaping part (goods) and the descending position of the reaping part 111 (2)
It is possible to make the operation IIF1 speed of the hydraulic cylinder (Ill) slower than when the mower 8Xs rise position + 111Ul and the reaping part 'Fl + position (2) K are in the middle of operation position (U") e (D") respectively. In addition, the operating tool 0# is configured to be able to move to the center position (P,
), the sensor (II) of the switching valve (2)
The operation linked to the operation intermediate position (u'), (D
A reaping machine characterized in that it is configured to restrict contact in a range between '>.