KR940000187B1 - Combine - Google Patents

Abstract

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Description

combine

1 is a schematic side view of a combine according to the present invention.

2 is a longitudinal rear view showing the grain tank.

3 is a longitudinal rear view showing a grain tank in which the auxiliary tank is in a long-term position;

4 is a cross-sectional view showing a grain tank in which the auxiliary tank is opened.

5 is a block diagram of operation control of an auxiliary tank of a combine.

6 is a flowchart of operation control of the auxiliary tank of the combine.

7 is a longitudinal rear view showing the grain tank.

8 is a longitudinal rear view showing an auxiliary tank on the way to the side of the grain tank.

9 is a longitudinal rear view showing the auxiliary tank withdrawn to the grain tank side.

10 is a longitudinal rear view showing the top plate of the withdrawal posture when the grain remaining in the auxiliary tank is large;

11 is a transverse rear view showing the grain tank in which the auxiliary tank is opened.

* Explanation of symbols for main parts of the drawings

1: driving unit 2: threshing device

3: Grain tank 4: Feeding device

5: screw 6: grain dispensing device

The present invention provides a threshing apparatus, a tank for storing the grains supplied from the threshing apparatus, an auxiliary tank which is attached to the tank and is discharged out of the tank to increase the capacity of the tank, and an unloading for discharging the auxiliary tank out of the tank. A combine provided with the drive means which moves between a posture and the withdrawal tax | gas which enters and exits in the said tank.

The auxiliary tank installed in such a grain storage tank has a function that can be loaded as needed to increase the tank capacity during harvesting operations, and when not necessary, can be retracted into the tank to compactly store the outer shape of the tank. In the past, such switching between the long-term posture and the retirement tax was automatically performed according to the increase or decrease of the grain in the tank (see Japanese Patent Application Laid-Open No. 1-148656).

Or, described in Japanese Patent Application No. Hei 2-97198 is configured to manually select one of a long position posture, a retirement posture, and an automatic mode by a three-state changeover switch. In other words, the automatic mode that automatically switches to the exit tax when the change in the entry posture and the exit tax is made by the manual operation and the amount of grain falls below the set value is used in combination.

In any of the conventional examples, when the withdrawal command is given by the operation means, the drive means is operated and the auxiliary tank is withdrawn. However, when the amount of grain in the tank is large, since the load also acts on the auxiliary tank, a large driving force is required to retract the auxiliary tank against the load. In addition, the mechanical strength of the auxiliary tank and the drive system must be sufficiently relaxed. These conditions are not preferable because they are a barrier to miniaturization and cost reduction of the exit drive means.

The present invention has been made in view of the above circumstances, and an object thereof is to eliminate the above-mentioned barriers and to reduce the size of the driving means and reduce the cost.

In order to solve the above-mentioned problems in the combine described in the above, in the present invention, the control means for controlling the drive of the drive means, the grain amount detection means for detecting the amount of grain in the tank and sending a signal to the control means, and the drive means And an operation means for giving an operation command to the control means, wherein the control means is configured to permit an auxiliary tank retract operation command from the operation means only when the amount of grain in the tank is less than the set amount.

According to this configuration, when a retirement instruction is given to the control means by the operation means, the control means checks the detection information of the grain quantity detecting means, and activates the withdrawal and driving means only when the grain quantity is less than the set amount to retract the auxiliary tank. . In this case, the load of the grain hardly acts on the auxiliary tank.

When the withdrawal command is given, the driving force and mechanical strength of the withdrawal and drive means are relatively small because the drive means is operated only in a state in which the grain load is hardly applied to the auxiliary tank. Therefore, it is possible to reduce the size of the exit drive means and to reduce the cost.

Further, in a preferred embodiment of the present invention, the grain amount and the detection means are each composed of a plurality of sensors which signal by detecting different grain amounts, and the control means comprises at least two sensors of the plurality of sensors. Only when there is a signal from the subsidiary tank, the subtank withdrawal operation command is permitted.

According to this constitution, when the withdrawal command is given to the control means by the operation means, the control means checks the detection signals of the grain detection sensors provided at two different positions in the tank, and neither of them detects the grain. Only operate the exit drive means. In addition, if the lower grain detection sensor does not detect the grain, it is common that the upper grain detection sensor does not detect the grain.So-called bridges occur and sometimes a cavity is formed around the lower grain detection sensor. There is a case. In such a case, even if the lower grain detection sensor does not detect the grain, the control means does not operate the exit drive means because the upper grain detection sensor detects the grain.

That is, it is safe that there is no risk of overloading the exit drive means by reliably checking that the amount of kernels is less than the set amount even under conditions where so-called bridge phenomenon is likely to occur due to moisture of the grain. do.

Other features and advantages of the present invention will be apparent from the following description of the embodiments using the drawings.

EXAMPLE

EMBODIMENT OF THE INVENTION Hereinafter, the Example of this invention is described based on drawing.

1 shows a combine equipped with a grain reservoir according to the present invention. This combine is equipped with a grain tank 3 behind the driving unit 1 and on the side of the threshing apparatus 2, while the grain tank 3 is supplied from the grain apparatus 2 to the feeder 4. It is intended to store the old kernels.

At the bottom of the grain tank 3, the grain conveying screw 5 is provided along the front and rear direction, and at the rear end of the grain tank 3, the grain conveyed by the screw 5 is lifted up and taken out. The carrying out device 6 is provided in series. And the bottom surface of the grain tank 3 is formed as the inclined bottom surfaces 7, and 7 which have an inclination angle more than the angle which a grain can slip with respect to the screw 5, and is.

Next, the auxiliary tank 8 will be described.

As shown in Figs. 2 to 4, the grain tank 3 is switched to the elongation posture which is extended outwards horizontally on the side 3A facing the gas in the horizontal direction and the withdrawal posture which is retracted toward the grain tank 3; If possible, an auxiliary tank (8) for increasing storage capacity is installed. The auxiliary tank 8 has an outer wall 9 which forms the side surface 3A of the grain tank 3 when pulled out toward the crane tank 3, and the front and rear sidewalls 10 and 10 provided in series with the outer wall 9. ) And a top plate 11, and the withdrawal fluctuations are freely conical joined around the support shaft P which forms an axial center along the front-rear direction in the lower end side 3A of the grain tank 3. As shown in FIG. The top plate 11 is conical in the middle of its retracting direction, that is, one end side to the pivot shaft 13 which rotates integrally with the pinion gears 12 and 12 provided in front and rear pairs in the upper part of the grain tank 3. 11 A of bonded inner refractive plates and the outer refractive plate 11B which conical-bonded one end side to the upper end part of the outer side wall 9 of the auxiliary tank 8 are comprised so that relative swing is possible mutually.

The pinion gears 12 and 12 are formed in a circular arc centered on the support shaft P in an arc-shaped reinforcement member 14 which is flanged to the upper edge of the side walls 10 and 10 of the auxiliary tank 8. The gears 15 and 15 are formed to be engaged with each other, and the auxiliary tank 8 is provided through the gear parts 15 and 15 and further the side walls 10 and 10 by the rotational driving of the pinion gears 12 and 12. ) The whole is going to swing. In addition, the rotation drive of the pinion gears 12 and 12 transmits the power of the electric motor 16 installed outside the rear wall of the storage tank 3 to the rear end of the rotation shaft 12 as shown in FIG. By doing so. That is, the drive means 200 is comprised by the gear transmission mechanism 12,15 which uses the electric motor 16 as a power source.

As shown in FIG. 2 and FIG. 3, the awning-shaped member 18 as an inner wall part between the installation positions of the said two pinion gears 12 and 12 in the upper side inner side wall 17 in the grain tank 3 is shown. At the same time, the sunshade member 18 is fixed to the sunshade member 18 in a state in which a water wall made of sheet metal between the pinion gears 12 and 12 is installed. The lower edge portion 19a of the water wall 19 is deflected outwardly, and the edge portion 19a and the inner refracting plate 11A of the refracted top plate 11 of the retracted auxiliary tank 8 are formed therein. It is set to abut over the front and back length range.

Further, as shown in FIG. 2 and FIG. 3 and FIG. 4, the gear part of the arc-shaped reinforcing member 14 in the grain tank 13 is provided on the water wall 19 near the installation portion of the pinion gears 12 and 12. As shown in FIG. A scraper member 20 made of a rubber plate or a canvas that elastically abuts from above is attached to the 15. By the scraper member 20, the grain 2 placed on the arc-shaped reinforcing member 14 is removed at the time of loading of the auxiliary tank 8, and the grain of the grain is engaged with the pinion gear 12 and the gear portion 15. (2) It does not interfere with crushing.

In FIG. 2 and FIG. 3, 40 and 41 are limit switches provided in order to detect the opening limit or the withdrawal limit of the auxiliary tank 12. As shown in FIG. 42 is a contact rod for both limit switches, and is provided on the outer wall 9, the limit switch 41 at the time of the loading limit of the auxiliary tank 12, the limit switch 40 at the time of entering and exit limit of the auxiliary tank 12. ).

In addition, four grain detection sensors 50, 51, 52, and 53 are provided in sequence at different height positions from the lower portion of the inner wall of the tank 5 to the upper portion thereof. These grain detection sensors are switches that are turned on by the pressure from the grains, and it is possible to know whether the grains stored in the tank 5 have reached the respective grain detection sensors. That is, it functions as a grain quantity detecting means for detecting grain quantity step by step.

The control part 1 of FIG. 1 has a switching switch 60 as a means operating means for switching overload and retirement posture of the auxiliary tank 8, and a push-button stop switch for emergency stop of the changeover operation ( 61) is installed. The stop switch 61 also serves as a stop switch for turning drive or lifting drive of the auger 6.

Next, the charging control for switching between the charging posture and the withdrawal posture of the auxiliary tank 8 will be described.

As shown in FIG. 5, a control means 100 constructed on the basis of a microcomputer is provided, and the changeover switch 60, the stop switch 61, and the grain detection sensors 50, 51, 52, and 53 are provided. Contact signal is input. The signals from the limit switches 40 and 41 are also input. Based on these signals, a control signal is output to the drive means 200 including the electric motor 16. In addition, although the control means 100 performs the control which raises and turns the said auger 6, etc., the description about these control is abbreviate | omitted.

The control means (H) causes the auxiliary tank (8) to be ejected from the tank (5) or retracted into the tank (5) based on the charge command or the eject command from the telephone switch (60). )). That is, the electric motor 16 of the driving means 200 is electrostatic or reversed. In addition, the driving means 200, that is, the electric motor 16 is stopped by the stopping force from the stop switch 61.

Next, control of the auxiliary tank 8 of the present invention will be described based on the flowchart of FIG.

First, this control flow is largely divided into three types of blocks: drive stop control blocks of steps # 10 to # 20, elongation control blocks of steps # 40 to # 48, and steps # 80 to # 86. It can be divided into the egress control block, and the egress control block includes a subblock for the sensor check of steps (# 80 to # 86).

When entering the auxiliary tank drive control routine, it is checked whether the value of the control variable plug STOPFLG is 1 or 0 (# 10). In this control, 1 is inserted into the plug STOP when the processing in the drive stop block is to be performed. That is, 1 is inserted into the plug STOP to stop the swing drive of the auxiliary tank. If positive STOP is 1 at this step, the state of the changeover switch 60 is again checked (# 12). The state check of the changeover switch 60 checks the change from the retracted position to the ejected position or the erupted position to the retracted position, or the state without change, which is time-division by, for example, interruption of the computer. The processing is obtained by examining the state of the changeover switch at a certain time interval, and the obtained state is stored in a predetermined memory area for use by this control routine. If the state of the changeover switch changes in step # 12, 0 is substituted into the plug STOP, and the flow advances to the next step # 16. If the state of the changeover switch is not changed, the process proceeds directly to step # 16, and the timer described later is reset, and this also substitutes 0 into the plug SCFLG as a control variable described later (# 18). Thereafter, a process of stopping the drive motor 16, for example, a process of stopping power supply to the motor is executed (# 20).

If the plug STOPFLG is not 1 at step # 10, it is again checked whether or not the switch has been switched to the unloading position (# 40), and if it is switched to the unloading side, the auxiliary tank 8 is unloaded. Operation control is performed. That is, as long as the conditions of the steps # 42, # 44, # 46 are not satisfied, the process of powering off the drive motor 16 is executed (# 48). When one of the conditions of the above step is satisfied, i.e., the limit switch 40 for detecting that the elongation fluctuation of the auxiliary tank 8 has reached the limit is turned ON (# 42), or after the elongation fluctuation is started. In the case where a predetermined time has elapsed (# 44) or when the stop switch 61 is operated (# 46), the above stop control block is shifted, so that 1 is inserted into the plug STOPFLG (# 50) to continue the driving motor 16 ) Is executed (# 52).

When the state of the changeover switch is the changeover to the retreat side at step # 40, the retreat operation control of the auxiliary tank 8 is performed. First, at # 60, the value of the plug SCFLG, which is a control variable, is checked to check whether or not the check of the sensors 50 and 51 is performed in this exit control operation. When the plug SCFLG is checked by the sensors 50 and 51, that is, how much grain is stored in the tank in one retracting operation control, 1 is substituted. If the plug SCFLG is not 1 at step # 60, the sensors 50 and 51 have not been checked yet, so the sensors are checked at steps # 80 and # 82. Here, when both sensors are "OFF", that is, when there is little grain stored in the tank, 1 is inserted into the plug SCFLG (# 84), and preparation for the retracting operation of the auxiliary tank is completed. However, if at least either of the sensors 50, 51 is ″ ON ″, there is still a significant amount of grain remaining in the tank, so that the value of the plug SCFLG remains at zero, causing the drive motor 16 to stop (# 86). The processing of steps # 62 to # 67 described below is not performed until the grains in the tank are reduced to a predetermined amount.

When the grain in the tank is reduced to a predetermined amount, and the value of the plug SCFLG is 1, the process goes from step # 60 to step # 62. Upon entering this routine, the process of reversing the drive motor 16 is executed unless the conditions of steps # 62, # 64, # 66 are satisfied (# 68). When one of these conditions is established, i.e., the limit switch 41 which detects that the withdrawal fluctuation of the auxiliary tank 8 has reached the limit is turned "ON" (# 62), or a certain time after the withdrawal fluctuation is started. When the elapsed time (# 64) or the stop switch (# 61) is activated (# 66), the process proceeds to the stop control block, so that 1 is inserted into the plug STOPFLG (# 50), and the drive motor 16 continues. ) Is executed (# 52).

Even if the changeover switch 60 is operated to the retracting side as described above, the electric motor 16 is not actually operated until the signal of the grain detection sensors 50 and 51 is turned off, thus overloading the driving means including the electric motor 16. To avoid getting caught. That is, the grains stored in the tank 5 by the auger 6 are discharged out of the gas, and when the grain quantity is lower than the position of the grain detection sensor 50, the grain detection sensor 50 is turned off. The load of the grain is hardly acting on the auxiliary tank 8.

At this time, checking that the grain detection sensor 51 is also turned off may cause a so-called bridge phenomenon in which a cavity is formed under the grain layer as the grain is discharged, such as when the grain in the tank 5 is wet. Because. Sometimes, except in the case where a cavity is generated only around the grain detection sensor 50, the grain detection sensor 51 is also turned off to detect that the grain quantity is indeed reduced to less than the position of the grain detection sensor 50. To check what is there.

In addition, the other grain detection sensors 52 and 53 are used together with the grain detection sensors 50 and 51 to detect and lamp the amount of grain in the tank 5. Incidentally, when the grain detection sensor 53 is turned on, an alarm caused by a buzzer is also sounded, but the description of the flow of these controls is omitted.

Other Examples

7 to 11 show another embodiment of the grain tank 3, in which the top plate 110 in particular differs from that of the previous embodiment. In this fact, the same numbers as those in the previous embodiment have been attached to the same operation for the members other than the top plate portion, and unnecessary repetition of the description is avoided.

This top plate 110 will be described.

As shown in Figs. 7 to 11, the top plate 11 has a first hinge structure that can be deflected around an axis X parallel to the support shaft P at a central portion in the egress direction in its extended state. The inner refracting plate 110A is formed of one plate member on the grain tank side at the same time as configured through the reference numeral 111. On the other hand, on the outer side of the shaft center X, that is, on the side near the conical joint portion on the outer wall 9 of the auxiliary tank 8, on the central portion in the retreat direction between the conical joint portion and the shaft center X. It is comprised so that only the refraction which becomes convex upward through the 2nd hinge structure 112 around the axis Q parallel to the said axis center X in this case is comprised. The outer side of the top plate 110 in the shaft center X is formed by connecting two refractive plate members 110B and 110C to the second hinge structure 112 that can only bend upward.

With the configuration of the top plate 110, when the elongate posture shown in FIG. 7 and the auxiliary tank 8 are withdrawn, the pivot shaft 3 of the inner deflection plate 110A is centered at the start of the withdrawal operation. The deflection plate members 110B and 110C are deflected upward due to the fact that the distance between the conical joining portion on the upper end of the auxiliary tank 8 of the top plate 110 and the shaft center X becomes smaller with respect to the downward swing. do. Therefore, as shown in FIGS. 7 and 8, even when the auxiliary tank 8 is pulled out with the grain remaining near the upper end of the auxiliary tank 8, the upper portion of the auxiliary tank 8 in which the grain remains. Since the top plate 110 is refracted upward, the grain plate may not be inserted between the top plate 110 of the top plate 110 and the outer wall 9 of the auxiliary tank 8 and the outer wall 9 of the auxiliary tank 8. . When the outer wall 9 of the auxiliary tank 8 is inclined at a large angle so that the grain slips, the grain remaining in the auxiliary tank 8 flows down, thereby preventing the withdrawal of the auxiliary tank 8. In addition, when the auxiliary tank 8 is withdrawn more than a predetermined posture, as shown in FIG. 9, the relative refractive angles of the refraction plate members 110B and 110C are widened.

In addition, in the said embodiment, when the grain in the auxiliary tank 8 does not flow down and it cannot pull out the auxiliary tank 8, the mechanism which stops the drive of the electric motor 16 is provided. Specifically, for example, when the granules are wet and the granules are clogged in the auxiliary tank 8 in the long-term position, the inner refracting plate 110A may be used even if the auxiliary tank 8 is to be withdrawn as shown in FIG. Since the fluctuation | movement to the bottom in contact with this grain mass is restrict | limited, the electric motor 16 which pulls out the auxiliary tank 8 tends to be overloaded. At this time, when the auxiliary tank 8 is pulled out irrespective of the fluctuation of the bottom of the inner deflection plate 110A, the protrusion amount due to the refraction of the refraction plate members 110B and 110C between the refraction plate members 110A and 110C becomes larger than that during normal retraction. Due to this, the refracting plate member 110C, which refracts the limit switch 113 provided at the upper end of the side plate 10 of the auxiliary tank 8 in a normal state, abuts and switches. The output signal from the limit switch 113 by this switching operation is input to the motor drive circuit 20, whereby the control means 100 stops the drive of the electric motor 16. FIG. In addition, a warning is given to the driver at the same time as the driving of the electric motor 16 is stopped.

In the above-described embodiment, the driving means used is an electric motor as a drive source, but the drive source may be composed of an inflow cylinder, a solenoid valve, an arm mechanism, or the like.

In addition, although a code | symbol is written in the term of a claim for convenience of contrast with drawing, by this writing, this invention is not limited to the structure of an accompanying drawing.

Claims (3)

A threshing apparatus 4, a tank 5 for storing the grains supplied from the threshing apparatus 4, and an auxiliary tank 8 that is attached to the tank 5 and is extended out of the tank to increase the tank capacity. ), And a combiner having drive means for moving the auxiliary tank 8 to the outside of the tank 5 and the elongating posture to be discharged to the outside of the tank 5 and the withdrawal posture to be discharged into the tank 5. A control means for controlling the drive of the drive means, a grain amount detection means for detecting the amount of grain in the tank 5 and sending a signal to the control means, and giving the control means an operation command for the drive means. And a control means, wherein said control means permits an auxiliary tank retracting operation command from said operating means only when the amount of grains in said tank (5) is less than a set amount. 2. The method according to claim 1, wherein said grain quantity detecting means comprises a plurality of sensors which signal by means of detection of different grain amounts, respectively, wherein said control means has a signal from at least two sensors of said plurality of sensors. Combines, characterized in that only permitting sub tank retract operation command from the operation means. 3. The combine as set forth in claim 2, wherein said plurality of sensors are constituted by sensors which emit a signal by detecting a grain, and are provided at different heights in said tank (5), respectively.