JPS62261621A - Travel control device for mobile agricultural machinery - Google Patents

Abstract

PURPOSE:To obtain quick and stable load control by means of a motor, by detecting the sinkage of a work vehicle by means of a vehicle body sinkage sensor and, when the amount of the sinkage thus detected becomes large, automatically activating a supercharger of the motor. CONSTITUTION:When a traveling equipment 2 reaches a soft soil foundation, the equipment 2 sinks, and the amount of the sinkage of this work vehicle body 3 is detected by a vehicle body sinkage sensor 4. As soon as the amount of the sinkage detected by the vehicle body sinkage sensor 4 exceeds the present value, a supercharger 5 is activated in a linked motion with the sensor 4 so as to heighten the supercharging pressure of the fuel, thereby increasing the output of a motor 1. After the preset running speed is once obtained through an increase in the output of the motor 1, the sinkage of the travelling equipment 2 becomes less, thereby ensuring the smooth and stable work.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a traveling control device for a mobile agricultural machine such as a combine harvester, which is propelled by driving a traveling device δ. This activates the supercharger of the prime mover that transmits power.

Conventional technology A prime mover with a supercharger is mounted on a combiner/tractor, etc., and the supercharger is operated to move one step according to the load to increase output.

Problems that IN + is intended to solve Con Z
The I fluctuations are quite large, especially the load on the running device 11. If this running device sinks into the soft soil surface, the load on the running device will be large! (Therefore, it is likely that there will be insufficient propulsion and it will not be possible to escape from the sinking state.)

Normally, it is sufficient to detect the transmission load on this traveling device and set the output of the prime mover to node A, but it is difficult to accurately detect this transmission load, and the configuration is not simple.

Means for Solving the Problem This test 151 is a vehicle body subsidence A! test that detects the subsidence of a working vehicle body (3) having a traveling device (2) driven by a prime mover (1) with respect to the soil surface. Answer 4) detects the subsidence of the vehicle body (3) using the vehicle body subsidence sensor (t), and the supercharger (5) of the prime mover (1) can be moved and supercharged. The running 11 control device (configured as 21).

When the driving force fi (1) of the invention is driven, the driving type motor (2) is transmitted, and the working parts of each part of the working vehicle body (3) are also transmitted.
Traveling type 21 that performs prescribed work while traveling on the soil surface
(2) sinks when it reaches soft soil, and the car body subsidence senna (
4) detects the subsidence of this work vehicle body (3). When the amount of subsidence detected by the vehicle body subsidence sensor (4) exceeds a predetermined value, the supercharger a(5) is operated in conjunction with this, increasing the supercharging pressure of the fuel and increasing the output of the prime mover (1). When the predetermined traveling speed is obtained by increasing the output of the prime mover (1) in this way, it becomes a traveling type! (2) Subsidence is also reduced, allowing for smooth and stable work.

When the traveling device (2) sinks less due to the hard surface of the running soil, etc., the vehicle body sinking sensor (4) stops the operation of the supercharger (5), and the motor (1) returns to its normal output state. . For this reason, the speed at which the vehicle is traveling at high speed is reduced by reducing the vehicle body sinking, and a predetermined traveling speed is maintained.

Effects of the invention In this way, the sinking of the working vehicle body (3) can be detected by the vehicle body sinking sensor (4).
), and when the amount of subsidence increases, the prime mover (
Since the supercharging 411 (5) of 1) is activated automatically, the sinking of the running gear (2) can be detected with a simple configuration and accurate by using a ground type vehicle body sinking sensor (4), etc. It is possible to perform load control work using the prime mover (1) quickly and stably.

Embodiment In the illustrated example, the combine harvester has a vehicle body (3) equipped with a traveling device (2) consisting of a pair of left and right crawlers, a threshing gear fi (8), a prime mover (1), a grain tank (9),
A culm cutter (10), a culm notter (11), etc. are installed or installed. In addition, a reaping device 21 (7) is installed in front of this threshing device (8), and a culm transfer device 21 (1) is installed in front of the threshing device (8).
In step 2), the cut husk is transferred and supplied to the grain rack 21 (8).

Original fha (1) cr + supercharging It (5) is provided with a compression 41 (1G) in the middle of the fuel intake passage (15) communicating from the air cleaner (13) to the cylinder head (14), and connects it to the cylinder head (14). An exhaust turbine (14) provided in the middle of an exhaust path (18) communicating with a muffler (17)
9), and a switching valve (20) provided in this exhaust passage (18) directs the exhaust gas to the exhaust turbine (18).
The switching valve (20) can be operated by the solenoid pulp (21) to control the hydraulic cylinder (22) of the hydraulic circuit (22).
23) is activated to link the merits and disciplines.
(24) is a surge tank provided in the suction passage (15), which communicates with the diaphragm chamber (25) at the base of the switching valve (20), and the pressure from this surge tank (24) causes the switching valve (20) to ) is normally operated to prevent exhaust from being discharged to the exhaust turbine (19) side. By switching the solenoid valve (21), this! /J exchange valve (20) is operated against the pressure of the diaphragm chamber (25), and the exhaust gas is initially directed to the exhaust turbine (13) side. (2B) is a control device which controls the solenoid valve (21) to the supercharger (
5) is provided in a switching operation relationship so that it works.

(27) is a monitor that displays the relationship between transmission load and supercharging pressure in a graph.

The vehicle body subsidence sensor (4) is located at the bottom of the combine harvester vehicle body (3) between the left and right traveling devices (2), and is installed so as to be in the form of a long sled in the front and rear direction and to be in contact with the soil surface.
3) is springed downward at a predetermined height by a spring (47). Due to the sinking of the traveling type 21 (2) with respect to the soil surface, this vehicle body sinking sensor (4) slides on the ground and is pushed up against the spring (47), so that the working vehicle body (3) is moved by this amount of upward movement. The amount of subsidence.

The traveling transmission device (28) of the traveling device (2) is provided with a hydraulic continuously variable transmission (6) at the upper end, and this hydraulic continuously variable transmission type 21
The input shaft (29) of (6) is configured to transmit power from the prime mover (1), creating a traveling transmission system! The final pair of left and right wheel shafts (30) in (2B) provide a pair of left and right running type 2! i
(2) It is a configuration that can transmit.

The hydraulic continuously variable transmission type 2i (6) transmits and rotates the output shaft (31) in a continuously variable manner by the drive rotation of the input shaft (29), and by rotating the slant plate shaft (32). ,
When the transmission is rotated from the neutral position where transmission is stopped to one side, it becomes a forward position where transmission is sequentially performed at high speeds in the forward rotation direction, and when it is rotated to the opposite side, it is set to a reverse position where transmission is sequentially transmitted at high speeds in the reverse direction, allowing continuously variable speed transmission.

The input shaft (33) at the upper end of the traveling transmission device m (2B) is
connected to the output shaft [31], and provided with a transmission gear (34);
A reaping output pulley (3B) capable of belt-transmitting a reaping transmission device (35) that transmits each part of the reaping device (7) and the grain culm transfer device (12) is provided at the tip. (37) is a running clutch shaft, and side gears (3
8) to constitute a strike clutch (40), and furthermore, a strike brake (41) is provided on the outer side of this side gear (38).
, and the side gear (39) is connected to the center gear (38).
), the strike clutch (40) is disengaged, and the strike brake (41) is braked by moving it further outward.
The braking of 1) stops the rotation of the wheel shaft (30) and the traveling gear r1 (2) on the side where the running clutch (40) is disengaged.

The reaping device (7) is equipped with a culm lifting device (42), a raking device (43) for scraping the raised culm, a cutting blade device (44), etc. for power transmission, and a grain culm transfer device 22 (+2). ) consists of a stock head transfer device that clamps and transfers the stock base of the cut culm, and a tip transfer device that engages and transfers and guides the tip of the transferred shell culm, each of which is configured in an interlocking manner. .

The threshing device (8), the transfer spiral of the grain tank (9), etc. are configured to be transmitted from the drive ja (1) via the threshing transmission device (45) and the grain tank transmission device (4B).

Driven by the prime mover (1), the hydraulic continuously variable transmission (6)
The input shaft (29), the threshing transmission (45), and the grain tank transmission (4B) '8 can be transmitted.

When the slope shaft (32) is operated to the forward position and the output shaft (31) is rotated, the human power shaft (33) of the traveling transmission device (2B)
is rotated, the transmission gear (34) and the strike crank (4) are rotated.
0), etc., the traveling device (2) is transmitted from the wheel shaft (30). In addition, each part of the reaping device (7) and the grain culm transfer device m are connected from the reaping output pulley (36) to the reaping transmission bag m (35).
(12) etc. can be transmitted to perform reaping work.

The culm, which is guided to a certain posture by the culm lifting bag 2t (42), is not raked by the raking device m (43) and then moved to the cutting blade device (
44), transferred by the culm transfer device 27 (12), and supplied to the threshing device (8). The culm threshed by the threshing device (8) is processed by a culm cutter (10) or a culm knocker.
It is transferred to (11) and subjected to culm treatment. The threshed grains are sorted by a crushing sorter or the like and then stored in a grain tank (9). When taking out grains from the grain tank (9), use this grain tank transmission bag, i! fi (4G) can be used to transmit the shell lifting equipment, etc., and eject it out of the aircraft.

[1] If the running ground at the site is soft and the running gear sinks, running resistance increases and a large power load is required for running transmission. In such a case, the rotation of the output shaft (31) decreases due to an increase in transmission load, and the vehicle body subsidence sensor (4) detects the subsidence of the traveling equipment f1 (2) with respect to the soil surface, and this subsidence detection iJ1: When the value exceeds a predetermined value, the solenoid/help (21) is activated. J is obtained, νJl'F valve (2
0) is activated, the exhaust gas is moved to the exhaust turbine (19), the compressor (16) is rotated at high speed, the fuel is supercharged, the output of the prime mover (1) is increased, and the five-man power shaft ( 29), (3
3) and the reduction in transmission rotation of the threshing transmission device (45), etc.

When the traveling device (2) as described above starts traveling on a hard soil surface and the vehicle body no longer sinks, the load decreases and the input shaft (33) rotates at a high speed. Also, car body subsidence Senna (4)
As a result, the solenoid valve (21) is turned back to its original state, and the supercharger (5) returns to its non-operating state.

4. The simple explanatory diagrams in Figure i'I'11 show one embodiment of the present invention. Figure 1 is a partial cross-sectional mechanism diagram, Figure 2 is a block transmission diagram, and Figure 3 is a partial diagram. FIG. 4 is a side view.

[In 4, code (1) is the prime mover, (2) is the traveling device, and (3
) indicates the working vehicle body, (4) indicates the 81 (underbody sensor), and (5) indicates the supercharger.

Claims (1)

[Claims] A vehicle body subsidence sensor (4) detects the subsidence of a working vehicle body (3) having a traveling device (2) driven and propelled by a prime mover (1) with respect to the soil surface. ) by detecting the subsidence of the prime mover (
A travel control device for a mobile agricultural machine, etc., which is configured in conjunction with the supercharger (5) of 1) to enable supercharging.