JPH0750910Y2 - Combine speed control device - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial field of application The present invention relates to drive control of a combine feed chain and a straw chain.

(B) Conventional technology Conventionally, in a combine transport device, a mechanism for detecting the transport thickness of the sandwich transport device and the straw transport device is provided, and the transport speed of each transport device is based on the detected transport thickness of the mechanism. It is known that the technology for automatically changing For example, it is like the technique described in Japanese Utility Model Publication No. 56-104334.

Further, in order to convey the harvested grain culm of the combine in a good posture, the transmission lever of the operating lever and the conveying device and the traveling transmission can be changed so that the conveying speed of the raising device and the reaper can be changed according to the traveling speed of the combine. The technology of arranging the two is publicly known. For example, Japanese Utility Model Publication No. 56-7128.

In addition, a structure in which a sprocket shaft on the rear end side of the feed chain and a sprocket shaft on the front end of the straw chain are connected to drive the straw chain from the feed chain has been known in the past. Since it becomes difficult and the rotation of the straw chain becomes difficult, it has become common to drive them separately.

(C) Problems to be solved by the invention However, since the feed speeds of the feed chain and the straw chain are not matched, when the feed chain is passed from the feed chain to the straw chain, a jam occurs due to the difference in the feed speed, The posture of the transport culm was disturbed.

(D) Means for Solving the Problems The present invention has the following configuration in view of such a point.

In the combine conveyer, the sensors 40 and 62 for detecting the conveying speeds of the feed chain 7 and the straw chain 11 are provided, and the speed difference is calculated from the detection values of the both sensors, and the feed chain 7 is the straw chain. When rotating faster than 11, the conveying speed of the straw chain 11 is increased, and when the straw chain 11 is faster than the feed chain 7 and is rotating at a speed difference within a certain range, Or, if both are rotating at the same speed, the speed is maintained, and if the speed of the straw chain 11 becomes faster than the set value of the speed difference within a certain range, the straw chain 11
The transport speed of the straw chain is reduced, and only the transport speed of the straw chain is changed.

(E) Embodiment The object of the present invention is as described above, and the structure of the present invention will be described based on the structure of the embodiment shown in the accompanying drawings.

FIG. 1 is a system diagram of a combine drive system, and FIG. 2 is an overall plan view of the combine.

At the front end of the raising device 1 at the front of the combine, sprouting boards 2,2,2 are projectingly installed, and the grain culms are weeded by the shunting plates 2,2,2, and the lodging grain culms are placed on the raising device 1. The root of the grain culm is cut off by the cutting blade 3 by being raised. The cut grain culm is conveyed by the upper conveyor 5 and the vertical conveyor 6 of the stock carrier 4, the stock is inherited by the feed chain 7, and the tip is guided to the threshing device D.

The grain culm is shredded by rotating the handling cylinder 9 installed horizontally in the threshing device D, the fine grain after selection is stored in the Glen tank 10, and the straw after threshing is cut by the cutter device C or the straw chain 11 or It is sent to a bundling device or a bundling device.

Next, the drive system will be described. Output pulleys 13 and 14 are fixed to the output shaft 12 of the engine E, and a pulley 18 fixed to the input shaft 17 of the mission case 16 is provided from the output pulley 13 via the belt 15. The power is transmitted to the vehicle, the transmission case 16 changes the speed, and the axles 19, 19 are driven.

Then, the PTO shaft 20 protruding from the mission case 1
Power is transmitted from the pulley 21 fixed to the transmission case 24 to the transmission case 24 via the belt 22 and the pulley 23, the pulleys 26 and 27 are fixed to the output shaft 25 of the transmission case 24, and the belt 28 from the pulley 26. Power is transmitted to the reaping drive case 30 via the pulley 29.

However, the harvesting clutch 64 is placed between the pulley 26 and the pulley 29.
Is installed. The cutting blade 3 is driven from the output shaft 31 of the mowing drive case 30, the stock carrier transport device 4 and the upper transport device 5 are driven from the output shaft 32, and the vertical transport device 6 is driven from the pulley 33, the belt 34, and the pulley 35. is doing.

Further, the pulley 27 drives the feed chain 7 via the belt 36 and the pulley 37 via the feed chain drive shaft 39, and the feed chain drive shaft 39 is provided with a sensor 40 for detecting the number of revolutions. A conveyance clutch 65 is interposed between the pulley 27 and the pulley 37, and is configured to be interlocked with a threshing clutch 46 described later.

From the output pulley 14 of the engine E, the belt 41,
Power is transmitted from the pulleys 42, 43 to the pulley 45 via the belt 44 and the threshing clutch 46 and input to the threshing drive case 47.

A pulley 50 fixed to the output shaft 49 of the threshing drive case 47.
From the above, the handling cylinder 9 is driven via the belt 51, and the stepless transmission 54 on the output shaft 49, in this embodiment the split pulley 52 of the split pulley type transmission, is split via the belt 53 to the split pulley 54.
The power is transmitted to the split pulley 52, the width of the split pulley 52 is changed by the rotation of the motor 55, and the rotation speed can be changed.

Power is transmitted from the split pulley 54 to a drive shaft 59 via bevel gears 56 and 57, and the straw chain 11 is driven via bevel gears 60 and 61. The rotational speed of the drive shaft 59 is a sensor
Detected at 62. The sensors 40 and 62 and the motor 55 are connected to the control circuit 63.

(F) Action of the device In such a configuration, in order to detect the conveying speed of the feed chain 7, the rotation speed of the feed chain drive shaft 39 is detected by the sensor 40, and the value is input to the control circuit 63, Further, in order to detect the conveyance speed of the straw chain 11, it is detected by the rotation speed sensor 62 of the drive shaft 59 and the value is input to the control circuit 63.

Then, the difference between the values of the sensor 40 and the sensor 62 is calculated by the control circuit 63, and when the value becomes larger than 0, that is, the feed chain 7 rotates faster than the straw chain 11. Sometimes, the motor 55 is driven to narrow the gap between the split pulleys 52, and the belt 53 rotates on the outer peripheral side so that the drive shaft 59 rotates at high speed.
The transport speed of 11 is increased.

On the contrary, if the difference between the values of the sensor 40 and the sensor 62 is 0 or less and within the set value, that is, within a certain range, the straw chain 11 rotates faster than the feed chain 7 or at the same speed, that state. When the rotation speed of the straw chain 11 becomes faster than the set value, the motor 55 is reversely rotated until it becomes within the set value, and the interval between the split pulleys 52 is widened to lower the rotation speed.

(G) Effects of the Invention With the above-described structure and operation, the present invention has the following effects.

First, the transfer speed of the straw chain is always equal to or higher than the transfer speed of the feed chain, so that the transfer from the feed chain to the straw chain is smooth. It became possible to carry out the processing, and the clogging and the like were eliminated, and it was possible to carry the grain to the cutter device or the binding device in the next process without disturbing the posture of the transported grain culm.

Secondly, it becomes possible to constantly detect the conveying speed of the feed chain and the straw chain, and to control the conveying speed of the straw chain to the optimum speed according to the value, so that the conveying speed can be changed or the load changes. Even if the speed fluctuates, the transport speed of the straw chain can be changed according to the fluctuation, so that the straw can be effectively treated.

Thirdly, since only the speed of the straw chain 11 is changed, it is not necessary to change the speed of the feed chain 7, and by changing the speed of the feed chain 7, the stock carrier carrier 4 and the upper carrier 5 The balance of the transport speed with the vertical transport device 6 no longer deteriorates.

[Brief description of drawings]

FIG. 1 is a system diagram of a combine drive system. FIG. 2 is a plan view of the whole combine. 7 ... Feed chain 11 ... Straw chain 40, 62 ... Sensor 63 ... Control circuit

Claims (1)

[Scope of utility model registration request] 1. A combine transporting apparatus, wherein sensors 40 and 62 for detecting the transport speeds of the feed chain 7 and the straw chain 11 are provided, and the speed difference is calculated from the detection values of the both sensors to calculate the feed chain 7. If you are spinning faster than the Straw Chain 11, the Straw Chain 11
If the straw chain 11 is rotating faster than the feed chain 7 with a speed difference within a certain range, or if both are rotating at the same speed, that speed is increased. When the speed of the straw chain 11 becomes faster than the set value of the speed difference within a certain range, the straw chain 11 is configured to reduce the transfer speed, and only the transfer speed of the straw chain is set. A convey speed control device for a combine, characterized in that it is configured to change.