JP2723746B2 - Operation unit of threshing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation unit of a threshing apparatus provided with a tension type clutch for stopping operation of a handling cylinder.

[0002]

2. Description of the Related Art Conventionally, an operating tool and a tension pulley of a clutch are mechanically linked to each other, a clutch is manually operated by an operating tool, the clutch is operated, and a handle cylinder is activated.

[0003]

However, when the clutch is suddenly operated and operated, a large impact force acts on the power transmission system of the handling cylinder, and there is a danger that the power transmission system may be damaged. There is a high risk of breakage in heavy combiners. SUMMARY OF THE INVENTION An object of the present invention is to surely prevent damage to a power transmission system of a handling cylinder due to a sudden engagement operation of a clutch, and to enable the handling cylinder to be started as quickly as possible.

[0004]

According to a first aspect of the present invention, in a threshing apparatus provided with a tension type clutch for stopping operation of a handling cylinder, an actuator for operating the clutch is provided, and an instruction for operating the clutch by an operating tool is provided. The automatic operation means is provided for causing the actuator to perform the clutch engagement operation at an initially high set speed and at a late set speed at the end based on the above.

[0005]

[Function] In other words, even if the operating tool is rapidly turned on and operated, the actuator is engaged at the set speed by the automatic operating means, so that the set speed should be appropriately determined according to the starting load of the cylinder. Thus, it is possible to reliably prevent the power transmission system of the handling cylinder from being damaged due to the sudden engagement operation of the clutch. In addition, the set speed is increased in the initial stage of the clutch engagement operation when the power transmission function does not occur in the tension type clutch, and only the set speed at the end of the clutch engagement operation where the clutch has the power transmission function is handled to prevent damage to the power transmission system of the cylinder. In this case, the operation time required for the operation of engaging the actuator with the clutch can be reduced as much as possible, and the cylinder can be started as quickly as possible.

[0006]

According to a second feature of the present invention, in a threshing apparatus provided with a tension type clutch for stopping the operation of a handling cylinder, an actuator for engaging and disengaging a clutch is provided, and a load for the on-coming operation of the actuator is reduced. A sensor to detect is provided.Based on the clutch operation instruction from the operating tool and information from the sensor, the sensor detection load becomes faster and the sensor detection load becomes higher than the set value while the sensor load is less than the set value. After that, automatic operation means for causing the actuator to enter the clutch at a low set speed is provided.

[0007]

[Function] In other words, even if the operating tool is rapidly turned on and operated, the actuator is engaged at the set speed by the automatic operating means, so that the set speed should be appropriately determined according to the starting load of the cylinder. Thus, it is possible to reliably prevent the power transmission system of the handling cylinder from being damaged due to the sudden engagement operation of the clutch. In addition, the sensor detects the load for the on-coming operation of the actuator, that is, the transmission torque of the tension type clutch. Only when the transmission torque is greater than or equal to the set value, the actuator is turned on at the low speed required to prevent damage to the power transmission system of the cylinder, so that the operation time required for the clutch on operation of the actuator can be shortened as much as possible, The handling cylinder can be activated as quickly as possible.

[0008]

According to a third feature of the present invention, in a threshing apparatus provided with a tension type clutch for stopping operation of a handling cylinder, an actuator for engaging and disengaging a clutch is provided, and a stroke for the on-coming operation of the actuator is reduced. Provide a sensor to detect, based on the clutch operation instruction by the operating tool and the information from the sensor, at a high setting speed while the sensor detection stroke is less than the set value, and while the sensor detection stroke is more than the set value. Is provided with automatic operation means for causing the actuator to enter the clutch at a low set speed.

[0009]

[Function] In other words, even if the operating tool is rapidly turned on and operated, the actuator is engaged at the set speed by the automatic operating means, so that the set speed should be appropriately determined according to the starting load of the cylinder. Thus, it is possible to reliably prevent the power transmission system of the handling cylinder from being damaged due to the sudden engagement operation of the clutch. In addition, the sensor detects the stroke of the on-coming operation of the actuator, that is, the transmission state of the tension type clutch, and when the detected stroke is less than the set value, that is, at the beginning of the on-coming operation of the clutch when the power transmission function does not occur in the tension type clutch. At the fast setting speed, and only when the detection stroke is equal to or greater than the set value, that is, at the end of the clutch engagement operation when the clutch has a power transmission function, the actuator enters at the low speed necessary to prevent damage to the power transmission system of the cylinder Therefore, the operation time required for the operation of engaging the actuator with the clutch can be reduced as much as possible, and the handling cylinder can be started as quickly as possible.

[0010]

As a result, there is provided a threshing apparatus which is capable of reliably preventing the power transmission system of the handle cylinder due to a sudden engagement operation of the clutch and quickly starting up the handle cylinder, and which is more excellent in durability and operability. Now available.

[0011]

【Example】

(Embodiment 1) As shown in FIG. 1, a pre-cutting device 1 that can be raised and lowered freely, an axial flow threshing device 2 that processes grain culms from the pre-cutting device 1, and a process from an axial flow threshing device 2 A sorting unit 3 for sorting objects, a Glen tank 4 for collecting the first thing from the sorting unit 3, an unloader 5 for extracting grains from the Glen tank 4, a boarding operation unit 6, and a crawler-type traveling device 8 for driving the driving unit
To form a combine with all culms.

As shown in FIG. 2, a tension type threshing clutch 11 for stopping the operation of the sorting unit 3 and the handling cylinder 10 is interposed between a prime mover 9 provided in the prime mover and a handling cylinder 10 of the threshing device 2. It is. A switch 14 for turning on and off the threshing clutch 11 is provided in the boarding operation section 6, and an electric actuator 15 for operating the tension pulley 11 a of the threshing clutch 11 is provided so as to be operable forward and reverse by a power supply device 12. A sensor 13 for detection is provided, and based on a clutch operation instruction by the switch 14 and information from the sensor 13, at a fast setting speed by continuous current supply while the detection current of the sensor 13 is less than the set value, and After the detected current has become equal to or greater than the set value, the automatic operation means 1 for causing the actuator 15 to perform the clutching operation at a slow set speed by the intermittent current supply.
6 to ensure that damage to the power transmission system to the handling cylinder 10 due to sudden activation of the handling cylinder 10 can be prevented.
To be able to start quickly. Switch 1
The automatic operation means 16 is formed in such a state that the actuator 15 is continuously driven based on the disengagement operation 4 to perform the clutch disengagement operation at a set high speed, so that the handling cylinder 10 can be stopped quickly.

(Embodiment 2) As shown in FIG. 3, in the combine shown in FIG. 1, a switch 17 for turning on and off a tension-type threshing clutch 11 provided between a prime mover 9 and a handling cylinder 10 is operated by the riding operation unit 6. Threshing clutch 11
A hydraulic actuator 18 for operating the tension arm 11b is provided in a state operated by an electromagnetic valve 19,
A sensor 20 for detecting the angle of the tension arm 11b at the time of the clutch engagement operation is provided. Based on the clutch engagement operation instruction by the switch 17 and the information from the sensor 20, while the detection angle of the sensor 20 is less than the set value, the continuous pressure oil is provided. An automatic operation means 21 for clutching the actuator 18 is provided at a fast set speed by the supply and at a slow set speed by the intermittent pressure oil supply while the detection angle of the sensor 20 is equal to or more than the set value. In this way, it is possible to reliably prevent the power transmission system to the handling cylinder 10 from being damaged due to a short startup, and to quickly start the handling cylinder 10. Further, the automatic operation means 21 is formed in a state in which the actuator 18 is continuously driven based on the switching operation of the switch 17 to perform the clutch releasing operation at the set high speed, so that the handling cylinder 10 can be stopped quickly.

[Another embodiment] A tension type clutch is provided below the threshing clutch 11 so that the actuators 15, 1
8 may be used to operate a lower tension type clutch. Another type of operation means such as a lever may be provided in place of the switches 14 and 17, and the operation means of the tension type clutch 11 is generically referred to as operation tools 14 and 17.
The specific configuration of the actuators 15, 18 and the automatic operation means 16, 21 for operating the clutches at a set speed can be appropriately selected, and the speed of the clutch disengagement operation can be freely changed. The type of the threshing device 2 and the installation target may be any.

In the first aspect of the present invention, the timing for decreasing the set speed is determined by detecting the load torque in the transmission system to the tension type clutch 11 and when the detected load torque increases to the set value, the set speed is reduced. The timer may detect the time from the start of the clutch engagement operation of the actuators 15 and 18 and reduce the set speed after the set time, and various other configuration changes are possible. . In short, it is sufficient that the set speed is set to be slow for a short time just before the point where the tension type clutch 11 stops slipping.

In the second aspect of the present invention, the object to be detected by the sensor 13 may be appropriately selected according to the type of the actuator 15. For example, when the actuator 15 is of a hydraulic type, the pressure sensor detects the supply pressure of the hydraulic oil. In short, the configuration may be such that the load on the clutch 15 of the actuator 15 is detected by the sensor 13.

In the third aspect of the present invention, the sensor 20 such as a limit switch detects whether the tension arm 11b has reached a set position, or the sensor 20 detects the amount of extension of the telescopic actuator 18. The configuration can be changed appropriately, and in short, the actuator 18
The clutch 20 may be configured to detect the stroke of the clutch engagement operation indirectly or directly by the sensor 20.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a schematic configuration diagram of a drive system and an operation system of the handling cylinder.

FIG. 3 is a schematic configuration diagram of a drive system and an operation system of a handling cylinder according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Handling cylinder 11 Tension type clutch 13 Sensor 14 Operating tool 15 Actuator 16 Automatic operating means 17 Operating tool 18 Actuator 20 Sensor 21 Automatic operating means

Claims (3)

(57) [Claims] In a threshing apparatus provided with a tension type clutch (11) for stopping operation of a handling cylinder (10), an actuator (15,
18), and the actuators (15, 1) are provided based on an instruction to operate the clutch by operating tools (14, 17).
8) An operation unit of a threshing apparatus provided with automatic operation means (16, 21) for performing a clutch engagement operation at an initially high set speed and a late set speed at the end. 2. A threshing apparatus provided with a tension type clutch (11) for stopping operation of a handling cylinder (10), an actuator (15) for engaging and operating the clutch (11).
And a sensor (13) for detecting a load with respect to the entering operation of the actuator (15) is provided.
4) Clutching operation instruction and the sensor (1)
Based on the information from 3), the setting is performed at a high setting speed while the detected load of the sensor (13) is less than the set value, and is set to be slow after the detected load of the sensor (13) becomes equal to or more than the set value. An operating section of a threshing device provided with automatic operating means (16) for operating the actuator (15) to engage the clutch at a speed. 3. A threshing device provided with a tension type clutch (11) for deactivating a handling cylinder (10), an actuator (18) for engaging and operating the clutch (11).
And a sensor (20) for detecting the stroke of the entering operation of the actuator (18) is provided.
7) A clutch operation instruction and the sensor (2)
Based on the information from 0), at a fast set speed while the detection stroke of the sensor (20) is less than the set value, and at a slow set speed while the detection stroke of the sensor (20) is equal to or more than the set value. , The actuator (18)
Operating unit of a threshing device provided with an automatic operating means (21) for causing a clutch to operate.