JPS5823719A - 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 provides a control mechanism that automatically increases/decelerates a manually operable traveling transmission so that the threshing load is approximately constant based on information from a threshing load detection device. The present invention relates to a combine harvester provided with an operating tool for changing and setting the speed, switching the control mechanism between an operating state and a non-actuating state in accordance with a series of displacements, and changing and setting the maximum speed.

The above-mentioned combine harvester has one operation to switch between automatic transmission running and manual transmission running, and one operation to change and set the maximum speed that appears during automatic transmission driving according to the standing situation and the operator's wishes. However, when operating the operating tools, the machine vibrates, making the operator feel uncomfortable and causing vibrations. was there. This is because, for example, as shown in FIGS. 5 and 7, the operating position of the operating tool (to) is
The position (VAN) where the control mechanism is in an inoperative state is a speed higher than the first speed (V, ) of the maximum speed change when the control mechanism is configured to have a large maximum speed. (Vm), and when switching to automatic transmission driving, the maximum speed of shifting is set to 2nd speed (V,).
Furthermore, the speed to be output by the control mechanism when the vehicle is switched to automatic transmission running is equivalent to a higher speed (Vb) than the running speed (Va) before switching. , the operating tool (to) is in manual travel position 1! (VAN)
Since a signal indicating that the vehicle should shift to 1st gear (V, ) is input while the vehicle is being operated from 2nd gear (η) to 2nd gear (η), the vehicle speed increases from (Va) to (Vb). This is because the vehicle is decelerated once toward the speed (vl) during the speeding up, and conversely, the operating tool is set to the operating position from 2nd speed (V, ) to E and the vehicle is running at an automatic speed change. At the same time, if the vehicle speed is switched to manual gear shift driving when the vehicle speed is higher than 1st gear (V,), the 1st gear (V, ), the vehicle speed is once decelerated toward the speed (Va) by the control mechanism.

In view of the above-mentioned circumstances, it is an object of the present invention to solve the above-mentioned drawbacks by making it possible to prevent unequal speed changes caused by the control mechanism that are performed when switching between manual speed change driving and automatic speed change driving.

Next, an embodiment of the combine harvester of the present invention will be described in detail based on illustrative drawings.As shown in Fig. A cutting blade that cuts the base of the grain culm (
2), a device that clamps and conveys the rows of grain culms to the rear (31), while the grain culms being conveyed are clamped and conveyed by the tweed chain (4), they are post-processed by the rotary handling cylinder (5), and the processed material is By the blowing action of the chisel (6) and the feeding action of the oscillating sorting plate (7), the fine grains fall into the 18-hole (8) and are collected.
A threshing device (IG, a disk-shaped cutter 0 that shreds the threshed waste straw conveyed by a straw removal chain 1υ) that collects it at the slot (9) and sorts it so that it can be discharged automatically. Each of them is attached to a self-propelled aircraft having a crawler traveling device 113, an engine I for driving the various devices, a driver's seat (2), and a control box.

As shown in FIG. 3, a part of the output of the engine 14 is transmitted to a hydraulic continuously variable transmission device 071 by a belt, and the continuously variable transmission device a7! The output of the engine is transmitted to the driving drive case (one gear at a time), so that the vehicle speed can be changed steplessly.In addition, a part of the engine output is transmitted to the driving drive case (one gear), so that the vehicle speed can be changed steplessly. (The configuration is such that the information is transmitted to the threshing device αα and the cutter [13 in a state in which the threshing device αα and the cutter [13] can be operated intermittently using a moat. (1), the cutting blade (2), and the conveying device (31).

The continuously variable transmission (171vC gear shift lever) is connected to the ground via a link mechanism (2) to enable manual operation of the continuously variable transmission surface using the lever (2), thereby making it possible to artificially change the vehicle speed. .

As illustrated in FIG.
A device for detecting the rotational speed of the handling cylinder as the rotational speed of the engine I by using the constituent mechanism of the torque detection device (1).
is attached to the threshing device +1 (I), and a device (to) for detecting the input rotational speed of the traveling drive case as the vehicle speed is attached to the traveling drive case (181), and each of the detection devices, c13 (to) and the continuously variable transmission surface are linked within the control mechanism.As shown in FIGS. 2 and 8, the link mechanism (2), the continuously variable transmission (171) A reversibly rotatable electric motor fin is interlocked with the link mechanism +211 via a friction transmission mechanism ■ to enable priority operation, and this motor is operated while increasing the speed of the continuously variable transmission Uη. A circuit (28a) for driving the motor @ at a higher speed than the speed increasing operation drive circuit (28a) while decelerating the continuously variable transmission 071, a circuit (28b) for driving the motor @ at a higher speed than the speed increasing operation driving circuit (28a), when the vehicle speed is zero or close to zero. Reference drive of the threshing device QG A device (■) for setting the torque (T, ), and dividing the engine rotation speed (N, ) stored by the storage device (■) into set speed intervals (△N) toward low speeds 4
engine speed range (N,), (N,)@(N,
), (N,) and four threshing drive torque ranges (T,) divided into increasing and decreasing set torque intervals (8T) based on the reference threshing drive torque (T,) )
, (T,), (T,), and (T,), the larger the torque range, the better the speed range. As shown in Fig. 1, 16 balance states obtained based on 4 torques [(T,)... and 4 speed ranges (N &) It is divided into seven levels (C,) - (C,) by determining the magnitude of the value of the product with speed ■, and among these divided ranks (C1), (C,) is set as the appropriate balance relationship. Threshing drive torque (
1) and the engine speed ■ are ranked in the seven stages (C
1) Determine which rank of the fist it is located in, and based on this determination result, in rank (U), there is no need to change the vehicle speed, in rank (CJ-(C,), the amount of deceleration, rank (C,), (C
, ') determines the amount of speed increase, and also ranks (
The deceleration amount is set so that the direction from C1) to (C9) is very large, and the deceleration amount is set so that the direction from rank (C,) to rank (C,
), a vehicle speed change amount setting device (to) that sets the amount of speed increase in a state where the speed increase is greater than 200, and is set at each set time based on signals from the vehicle speed change amount setting device (to) and the vehicle speed detection device (to). A device for setting a target vehicle speed in increments of speed, while comparing and determining the signals from the target vehicle speed setting device (to) and the vehicle speed detecting device (2), the drive for speed increasing operation so that the target vehicle speed and the actual vehicle speed become the same. The control mechanism (c) is composed of each of the comparison circuits (to) that operate the circuit (28a) or the drive circuit for deceleration operation (28b). That is, the control mechanism (to) is controlled based on the information from ca and clI41 of each detection device to adjust the drive torque m of the threshing device QG and the rotation speed of the en$':/[141 to the appropriate balance relationship. The transmission device 0η is configured to automatically increase/decelerate in order to maintain the torque and speed within a certain torque range and speed range, and to perform deceleration control at a higher speed than speed increase control. - In short, apply a load as large as possible to the engine a41 within its allowable load range, and apply the load to the threshing device α [,
By automatically changing the vehicle speed to apply as large a load as possible within the allowable range, it is possible to work in a good condition that uses engine power effectively and without overload. By performing the deceleration control at a higher speed than the speed increase control, even if an overload occurs in the film removing device αC, it is quickly resolved, and hunting during speed increase is suppressed. .

As shown in FIG. 8, both drive circuits ('2am).

A switch for switching the (Bib) between an operating state and a non-operating state is linked to the clutch state for the cutting blade (2) so that it is turned on only when this clutch (to) is in the engaged state. In this way, the control mechanism (to) becomes operable only when the cutting blade (2) is being driven.

As shown in FIG. 8, the target vehicle speed setting device (to)
The target amount high vehicle relationship set thereby is set as the first to fourth
A device for changing the speed (V, L (Atsushi), ff,) l (V,) is attached, and both drive circuits (g8a),
(!8b) is attached with a device (to) that suddenly switches them between the operating state and the non-operating state, and the setting device and the switching device (to) are connected to the rotary operating tool (!8b) shown in Fig. 6. When the operating tool - is operated to the first operating position (MAN), the switching device (to) puts both drive circuits (+l!aa) and (B8b) into the inactive state. When the first operating state is suddenly turned on and the operating tool (to) is operated to the second operating position (vl) of the rotation range (AUT), the switching device (to) switches between both drive circuits. (28a
) and (28b) are in operation, the setting device (9) is in a state to set the target maximum speed ■ to the first speed (V, ), and the operating tool (support) is turned. Motion range (
When the switching device (to) is operated to the eighth operating position (V, ) of the switching device (AUT), the switching device (to) is in the eighth operating state and the setting device (
The target maximum speed M is set to the 8th speed (η), and the operating tool (to) is operated to the fourth operating position (■,) in the rotation range (AUT). Then, the switching device (to) is in the second operating state, the setting device is in a state to set the target maximum vehicle speed M to the eighth speed (V,), and furthermore, the operating tool ω is in the rotation range ( When the switching device (to) is operated to the fifth operating position (V, ) of the
In this state, the setting equipment is set to 4th gear (again) between the target maximum vehicle speeds.
It is configured so that the situation becomes urgent.

That is, by a series of displacement operations of the operating tool (to), the control mechanism (1) can be switched between the operating state and the non-operating state, and the maximum shifting speed M produced by the control mechanism can be set to 4.
This allows you to change settings in stages. Further, the detection device-1 is configured to detect that the operating tool (support) has been operated based on rotation detection of a nine rotor (not shown) in conjunction with the operating tool (support). Tights Circuit (2) is configured to operate every time the detection device (2) suddenly detects that the timer circuit (2) has been operated, and the timer circuit (2) operates. 4) The operating circuit acts on the switching device (to) so that it becomes the first effect sK only while the operating tool (to) is operated, thereby indicating that the operating tool (to) has been operated. Control tool based on detection (to)
A round operating mechanism that automatically acts on the control mechanism so that it is suddenly in a non-operating state for a preset period of time required for the full stroke operation of the operating tool after the operating tool is operated. The control mechanism (c) is configured such that the control mechanism (c) is switched to a non-operating state for the set time period each time the operating tool (c) is operated.

In short, by simply operating one operating tool, it is possible to switch between a state in which work is performed while traveling at a manual speed, and a state in which work is performed while traveling at an automatic speed within the control mechanism. It is possible to change the maximum gear shifting speed M that appears when shifting gears, and when switching between manual gear shifting driving and automatic gear shifting driving, even if the operating tool (to) is moved to the current operating position. (MAN), or to C) or ff,
Even when the operator (to) has to pass through another operating position ff, ) or V, ) that is different from the target operating position, as when operating the target operating position, as shown in FIG. The operator (to) is in the operating position (η) or C for automatic transmission driving)
Either the gear shift by the controller #f@ is performed only after reaching the
This is to prevent the vehicle speed from being changed due to passing through the operating position (V, ) or V, ) of the automatic transmission driving position (AUT) before reaching N).

As shown in the above embodiment, the control mechanism (G) is configured so that the deceleration control is performed at a higher speed than the acceleration control, and the target vehicle speed for control is updated by the set speed at each set time. If a vehicle configured as described above is equipped with the above-mentioned operating mechanism, the vehicle speed may be significantly reduced by passing through another operating position before operating p&(to) reaches the target operating position, or the operating Even if the equipment is operated to the target operating position, the vehicle passes through another maximum speed setting position and a lower maximum speed is set in the target vehicle speed setting device □□□, causing a time delay in speed increase control. It is advantageous to be able to eliminate this problem, but it is configured so that the controlled speed change on the speed increasing side and the controlled speed change on the deceleration side are performed at the same speed, or configured so that the control target vehicle speed can be changed instantly. Furthermore, the present invention can also be applied to a configuration in which the maximum speed of shifting increases as the operating position of the operating tool becomes closer to the position where the control mechanism is in an inactive state.

In summary, the present invention, in the above-mentioned combine harvester, allows the control mechanism ◎ to be inactivated for a set time after the operating tool ■ is operated based on the detection of the lever in which the operating tool ■ is operated. It is characterized by the provision of a mechanism that automatically operates so that the condition is reached.

In other words, according to the above configuration, by setting the time required for the full stroke operation of the operating tool ■ as the set time, even if the operating tool Even if the operating tool passes through an operating position other than the target operating position on the way to the target operating position, at least the amount control mechanism from the start of the operator's operation until the operating tool (to) reaches the target operating position ■ is non-crop #
Since the vehicle is in a barking position, unequal changes in vehicle speed caused by the operator passing an operating position other than the target operating position will not occur, and the operator will not experience undue discomfort or vibrations. Now they can work in a safer and less tiring manner.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the combine harvester according to the invention,
Figure 1 is the electric circuit side-1 Figure 2 is a power transmission system diagram, Figure 8 is a block diagram of the control system, Figure 8 is an explanatory diagram showing the relationship between the rotation range and torque range, and the state of change in vehicle speed in Figure 5. FIG. Two: Soft load detection device, Four: Control mechanism, Field: Operation tool, -... Action mechanism,
Closed... Maximum shifting speed.

Claims (1)

[Claims] A traveling transmission device (171) that can be operated manually so that the threshing load is almost constant based on information from the threshing load detection device.
Maximum speed M between control mechanisms that automatically increases and decelerates
an operating tool (to) that is provided in a state in which changing settings are possible, and is used to abruptly switch the control mechanism (2) between an activated state and a non-activated state in response to a series of displacements, and to change settings between the maximum shifting speeds. A combine harvester provided with the operating tool (to)
A mechanism is provided that automatically acts between the control mechanisms to suddenly put them in a non-operating state for a set time after the operation of the operating tool (to) based on the detection that the operating tool (to) has been operated. A combine harvester featuring a turret.