JPH0646267Y2 - Control device in grain culm bundling device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a binding device for binding a fixed amount of cut grain culms or empty grain culms after threshing and binding them with a string and then releasing the bundle. The present invention relates to a control device.

[Conventional technology and problems to be solved]

Generally, this type of binding device is disclosed in, for example, Japanese Utility Model Publication No. 50-21942 and Japanese Utility Model Publication No. 59-29137.
A knotted part and multiple discharge arms for discharging bundled grain culms are arranged on one side with a guide deck plate for feeding and guiding cut grain culms or empty grain culms after cutting threshing, and a packer and a needle on the other side. The grain culms that have been set and bound are configured to be discharged to the outside by the movement of the plurality of discharge arms, and are attached to a combine provided with a pre-mowing treatment device and a mowing binding machine.

In this type of agricultural work machine, the power from one prime mover (engine) is usually configured to be distributed to the traveling unit such as a combine and other working units and the binding device. Since the grain culm moves in a so-called flow work so as to continue from the work such as the bundling work, the flow rate of the grain culm increases as the traveling speed and the cutting speed increase, and the time interval of the bundling work in the bundling device and thus the bundling work. The required power of the prime mover is increased, such that the discharge time pitch of the spent grain culm is also shortened.

In this case, if the discharging time pitch in the binding device is shortened below a certain level, causing the work to exceed the so-called binding processing capacity will cause the binding device at the end of the flow work to become clogged and the grain culm of the preceding stage. It causes various troubles in the work place, such as clogging of the processing part of the machine and overheating of the prime mover.

However, in the past, workers such as combine harvesters only performed judgment as to whether or not the prime mover was overloaded, so it is possible to achieve optimal safe work for the entire work equipment including the binding device. There was a problem saying that there is no.

The present invention aims to solve this problem by detecting the release time pitch of the bundled grain culms in the binding device.

[Means for solving problems]

In order to achieve this object, the present invention provides a binding device mounted on a traveling machine body equipped with a mowing device, and a knotting portion and a plurality of bundled grain cullets for discharging bundled grain culms on one side with a guide deck plate for feeding and guiding the grain culms sandwiched. A discharging arm and a packer and a needle are provided on the other side, respectively, and the binding device is provided with a pitch sensor for detecting a discharging time pitch for each binding operation, and is appropriately used once or a plurality of times. When the average release time pitch of the bundling work is less than or equal to a predetermined release time pitch, a control device is provided which gives a warning to the operator or outputs a signal for adjusting the work speed to decelerate.

[Operation and effect of device]

If the traveling speed and the mowing speed of the combine and the like increase, the flow rate of the grain culms (the amount of grain culm to be processed per unit time) increases, and the time interval for bundling each predetermined amount of bundles in the binding device becomes short, There is a correlation that the release time pitch of the bound grain culms in the so-called binding device is also shortened.

Therefore, the time interval required for one bundling operation in the bundling device, that is, the release time pitch of the bundled grain culms is detected by the pitch sensor, and the average value of the release time pitch in one or a plurality of this bundling operation is calculated. However, when this value is shorter than the predetermined discharge time pitch, the optimal processing capacity of the binding device is exceeded. Consequently, it can be judged that the processing capacity of the work equipment as a whole is close to the overloaded state.

In this way, when the time interval of the bundling work in the bundling device and thus the average release time pitch of the bundled culms is shorter than a predetermined value, a warning is issued to the worker or a signal for decelerating the work speed is controlled. By providing a device, it is possible to alert the operator before the binding device is overloaded, and it is possible to promptly deal with the work equipment so that the entire working equipment is in the optimum working state. If the speed of the traveling machine body is automatically decelerated by a signal for decelerating the work speed of No. 1, there is an effect that the safe operation can be more surely executed.

〔Example〕

A description will be given below of a case where the embodiment of the present invention is applied to a case of binding and releasing empty grain culms after cutting and threshing in a combine, and in the figure, reference numeral 1 indicates a conventionally known self-propelled self-decombining combine. The main body is shown, and in the cover case 2 provided at the rear portion thereof, the empty grain culm 3 connected to the feed chain (not shown) of the combine is fed along the inclined guide deck plate 4 in a direction perpendicular to the culm. A conventionally known bundling device 6 is provided so that the empty grain culms 5 thus obtained are bundled in an appropriate amount and then bundled and discharged rearward along the upper surface of the guide deck plate 4.

The binding device 6 includes a transmission case 7 having an L-shaped side surface, a bearing case 8 projecting from an upper portion of a side surface of the transmission case 7, and a knot portion 10 attached to a tip of a knot bearing 9 axially supported in the bearing case 8. The transmission case 7 includes an input shaft 11, which is axially supported in parallel with the knot shaft 9, in parallel with the knot shaft 9, a clutch shaft 12, and a converging portion 14 which is attached to the tip of a door shaft 13, and the knot portion 10 is the knot shaft 9. A bearing bracket 8 provided with a building 15 and a holder 16 driven by a link bracket 21 and a supporting bracket 20 having three discharge arms 17, 18 and 19 at appropriate intervals in the axial direction thereof.
On the other hand, by pivotally attaching the tip of the crank 22 fitted to the end of the knot shaft 9 to the bracket 20, the tip of each discharge arm 17, 18, 19 is moved to the first position by the rotation of the knot shaft 9. It is configured to swing in the direction of the arrow along the locus indicated by the chain double-dashed line 23 in FIG.

The focusing unit 14 includes a packer 24, a needle 25, and a door 26, and the input shaft 11 is constantly driven to rotate by power transmission from a combine power source. The base end of the packer 24 is connected to the transmission case 7 via a curved link 27, and the tip of a crank 28 fitted to the tip of the input shaft 11 is pivotally attached, whereby the input shaft 11 rotates. The tip of the packer 24 is configured to swing in the direction of the arrow along the locus indicated by the chain double-dashed line 29 in FIG. 4, and the needle 25 has its proximal end rotatably supported by the door shaft 13. At the same time, the tip of the crank 30 fitted to the tip of the clutch shaft 12 is pivotally attached, and the rotation of the clutch shaft 12 causes the tip of the needle 25 to move upward toward the bill 15 and the holder 16 in the knot 10. Then, a string (not shown) previously passed through the needle 25
The both ends of the guide deck plate 4 are configured to be bound by the bill 15 and the holder 16.
Is fitted to the door shaft 13 so as to project to the upper surface of the.

An idle gear 32, which meshes with a gear 31 fitted to the input shaft 11, is rotatably fitted onto the clutch shaft 12 in the transmission case 7, and a clutch 33 is provided to the clutch 33 and the door shaft. When the door 26 attached to the door shaft 13 is rotated rearward, the clutch 33 and the idling gear 32 are engaged by the action of the clutch interlocking mechanism 34. When the clutch shaft 12 starts rotating and the clutch shaft 12 makes one rotation, the clutch interlocking mechanism 34 automatically disengages the clutch 33 from the idle gear, and the clutch shaft 12 stops rotating. When the clutch shaft 12 is rotated once by transmitting the chain 41 from the sprocket 35 fitted to the clutch shaft 12 to the sprocket 40 on the knot shaft 9, the sprocket 39 of the intermediate shaft 36 is rotated at the same time. It is configured to rotate once and then stop.

Reference numeral 42 is a pitch sensor provided in the vicinity of the clutch shaft 12 or the knot shaft 9 that rotates once each time the binding work in the binding device 6 is performed, and the discharge time pitch after one binding work ( T) is detected.

In the embodiment, as shown in FIG. 5, a limit switch type pitch sensor 4 is turned on and off once each time the cam 43 fitted to the end of the knot shaft 9 protruding toward the transmission case 7 rotates once.
Although 2 is provided in the transmission case 7, a non-contact type sensor may be used as another embodiment.

FIG. 6 is a control circuit diagram relating to the pitch sensor 42. Reference numeral 44 is a threshing switch for turning on / off the drive of the handling cylinder of the threshing section 45, and reference numeral 46 is a cutting pretreatment device 47 with a culm. It is a grain culm sensor that determines whether or not, or whether the grain culm is flowing into the threshing section in an optimal state, and in the reference numeral 48,
Turn on the clutch (not shown) that transmits power to the binding device 6.
It is a binding switch that turns off.

The threshing switch 44, the grain culm sensor 46, and the binding switch 48.
In the central control unit 49, which enters the operating state when the three are ON, the release time pitch (T) for each binding operation detected by the pitch sensor 42 is added by an appropriate number (n). , If the average release time pitch (Tmp) of the bundling work once or a plurality of times is equal to or less than the predetermined release time pitch (Tmin.), An alarm device (alarm lamp, etc.) 50 for giving an alarm to the worker is provided. It has a function of outputting a signal or a signal for decelerating and adjusting the working speed, and this signal actuates the gear shift operation unit 51 to the gear shifting mechanism for decelerating and adjusting the power from the engine (not shown).

In addition, FIG. 8 shows O detected by the pitch sensor 42.
The N and OFF signals (signals that are turned on and off for each emission time pitch (T)) are plotted along the horizontal axis.

In this configuration, the empty grain culms 5 sent from the empty grain culm chain 3 onto both guide deck plates 4 are sequentially moved to the front portion of the door 26 by the swing motion of the track 29 of the packer 24 caused by the rotation of the input shaft 11. By focusing and repeating this, the amount of focusing on the front surface of the door 26 increases, and when a predetermined amount is reached, the packer 24 rotates the door 26 rearward through the focused grain culm, so that this door 26 can be attached. Clutch interlocking mechanism 34 by rotation of shaft 13.
As a result, the clutch 33 engages with the idling gear 32 and the clutch shaft 12 starts rotating, while the door 26 further rotates rearward and is retracted from the guide deck plate 4.

By this rotation of the clutch shaft 12, the knot shaft 9 also starts to rotate, and the needle 25 moves upward toward the bill 15 and the holder 16 by the rotation of the clutch shaft 12, so that the string passed through the needle 25 is collected. After wrapping around the culm, the building 15 and the holder 16 bind both ends of the string to bind them, while the discharge arms 17, 18, 19 move along the locus during this binding.
By moving backward along 28 and moving forward when the binding is finished, the bundled grain culms are guided to the guide deck board 4
It emits backwards along.

Thus, each time the binding work is performed once, the pitch sensor 42 outputs the ON / OFF signal once. Then, the central control unit 49 executes the control according to the flowchart shown in FIG.

That is, in step S1 to step S3 following the start, it is determined whether or not the threshing switch 44, the grain culm sensor 46, and the binding switch 48 are each ON, and when all three of them are ON, in step S4. ΣT = 0 and J = 0 are set as initial values, and the operation state is entered.

Here, ΣT means addition of the emission time pitch (T), and J is the number of ON / OFF signals detected by the pitch sensor 42.

Next, in step S5, ON / OF by the pitch sensor 42 is performed.
Each time F is output, the emission time pitch (T) is calculated, and the number of times is calculated in step S6. In step S7, addition ΣT of the emission time pitch (T) is executed until the number of times reaches a predetermined number (n).

In step S8, it is determined whether or not the number of detections is a predetermined number (n), and after addition ΣT is performed a predetermined number of times, the average release time pitch (Tmp) is calculated in step S9, and further in step S10. It is determined whether the average emission time pitch (Tmp) is smaller than a predetermined emission time pitch (Tmin.).

As a result, when the average discharge time pitch (Tmp) is less than (or less than) the predetermined discharge time pitch (Tmin.), A signal is sent to the alarm device (alarm lamp, etc.) 50 for giving an alarm to the worker in step S11. Then, if desired, in step S12, a signal for decelerating and adjusting the traveling speed and the working speed is further issued.

On the contrary, when the average discharge time pitch (Tmp) is larger than the predetermined discharge time pitch (Tmin.), The alarm is turned off.
Return to or hold state.

In calculating the average emission time pitch (Tmp), instead of adding a plurality of newly detected emission time pitches (T) to the calculation, the same number of times as the number of detection times from the oldest is used. A so-called moving average method, which excludes the emission time pitch (T) from the calculation, can be used.

When the control of the present invention is executed in this manner, the worker can grasp the limit of the processing capacity of the binding device 6, so that the work can be executed while ensuring the optimum working condition of the entire working equipment, and the occurrence of troubles related to the working equipment. It can be reduced.

Needless to say, the present invention can also be applied to a self-propelled cutting and binding machine that binds cut grain culms in appropriate amounts.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a side view of a combine, Fig. 2 is a plan view of II-II of Fig. 1, and Fig. 3 is a second view.
FIG. 4 is a side view of the drawing, FIG. 4 is a side view of the binding device, and FIG.
FIG. 6 is a sectional view taken along line V-V in FIG. 6, FIG. 6 is a side view of a main part taken along line VI-VI in FIG. 5, FIG. 7 is a block diagram of a control circuit, FIG. 8 is a diagram of a detection signal by a pitch sensor, and FIG. The figure is a flow chart. 6 ... Bundling device, 4 ... Guide deck plate, 7 ... Transmission case, 9 ... Knot shaft, 10 ... Knot part, 12 ... Clutch shaft, 14 ... Focusing part, 15 ... Building, 16 ... … Holder, 17,1
8, 19 …… Discharge arm, 24 …… Packer, 25 …… Needle, 26 …… Door, 42 …… Pitch sensor, 43 …… Cam,
49 ... Central control unit, 50 ... Alarm device, 51 ... Shift operation unit.

Claims (1)

[Scope of utility model registration request] 1. A binding device mounted on a traveling machine body equipped with a mowing device, with a guide deck plate for feeding and guiding grain culms being sandwiched on one side, a plurality of discharging arms for discharging the bundled grain culms, and the like. It is configured to include a packer and a needle respectively on the side, the binding device is provided with a pitch sensor that detects the release time pitch for each binding operation, and the average release of one or more binding operations is appropriately performed. When the time pitch is equal to or less than a predetermined release time pitch, a control device for providing an alarm to a worker or a signal for decelerating and adjusting a work speed is provided.