JPH1175491A - Body moving apparatus for combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve controllability of a combine harvester, by making the right and left balance of a machine body not change as much as possible even in change of the amount of grain in a grain tank. SOLUTION: This apparatus is equipped with a relatively moving mechanism for a traveling part furnished with crawlers 1R and 1L, an operating part and an engine and for a working part B furnished with a reaping part, a threshing part (b) and a grain tank 13 so as to slide and move the grain tank 13 to the left side with increase in grain recovered amount. The relatively moving mechanism is constituted by insulating a both side rod type hydraulic cylinder to be hung from a traveling frame 27 to an operating frame 25. A cylinder is connected to the traveling frame 27 and a right and a left rod ends are connected through rubber couplings to the right and left ends of the operating frame 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine having a working unit and a traveling unit which can be moved relative to each other, and more specifically, a driving unit is integrated with a traveling device to maintain a good steering feeling. The present invention relates to a technique for improving the right and left weight balance while keeping the balance.

[0002]

2. Description of the Related Art Conventionally, a mowing part lateral slide structure in which a mowing part is movable to the left and right with respect to the machine body to obtain both a state suitable for middle splitting and a state suitable for round cutting. Is known (JP-A-5-1538).
No. 41 publication).

[0003]

In a combine, a threshing unit is usually located on the left side of the fuselage, and a grain storage unit such as a Glen tank or a bagging hopper is located on the right side. Since the grains that have been threshed are stored in the grain storage section, the right side of the aircraft gradually becomes heavier. Therefore,
Regardless of whether the reaping unit can be slid horizontally or not, when the kernels are full of kernels, the center of gravity is shifted to the right, and the right crawler sinks sharply in wetlands. It sometimes had a bad influence on running performance, such as difficulty in turning and difficulty running straight. It is an object of the present invention to improve the maneuverability of a combine by preventing the left-right balance of the aircraft from changing as much as possible even when the load of the grain storage unit changes.

[0004]

[Means for Solving the Problems]

[Configuration] A first invention is a crawler traveling device, an operation unit,
A traveling unit comprising a traveling unit equipped with an engine and a working unit equipped with a cutting unit, a threshing unit, and a grain storage unit, which is provided with a relative movement mechanism capable of adjusting the relative movement in the left-right direction of the aircraft. A relative movement mechanism is provided by providing a double-sided rod-type hydraulic cylinder that is bridged over a frame and a working frame that constitutes a working unit, and the hydraulic cylinder is a double-sided rod type having rods protruding from both sides of a cylinder cylinder. And a cylinder cylinder is connected to one of the traveling frame and the working frame, and each rod is connected to the other of the traveling frame and the working frame.

According to a second aspect of the present invention, in the first aspect, an engaging means capable of restricting a relative movement between the traveling frame and the work frame is provided, and when the traveling section and the working section reach a predetermined relative set position, the engaging means is activated. It is configured to operate.

A third invention is the first or second invention, wherein
A plurality of hydraulic cylinders are provided at the front and rear, and each rod and the working frame or the traveling frame are connected via an elastic accommodating member that allows a slight relative movement of both of them in the front-back direction.

According to the first aspect of the present invention, a traveling unit including a crawler traveling device, an operating unit, and an engine, and a working unit including a cutting unit, a threshing unit, and a grain storage unit include: It is possible to adjust the relative movement in the left and right direction of the aircraft, so if the grain storage part becomes heavy and the left and right balance changes, it is possible to move the traveling part and the working part relatively sideways to absorb the balance change Yes, the left-right balance can be maintained in a predetermined state even if the amount of stored grains is different.

[0008] Since the driving unit is integral with the traveling unit, the positional relationship between the driving unit and the crawler does not change regardless of the lateral movement of the working unit. For example, when the operating unit is integrated with the working unit, the grain storage amount in the Glen tank increases during work traveling, and when the working unit moves left, the operating unit also moves left, Although it is conceivable that the airframe has shifted from the line due to the change, the line of sight does not change even if the working unit moves sideways, so it is possible to maintain a constant steering feeling. It is possible and it is easy to drive. In addition, since the engine is also provided in the traveling section, there is no need to provide a structure capable of lateral movement in the transmission system between the engine and the crawler traveling device, so that a conventional simple structure can be used.

Since the hydraulic cylinders for moving the traveling section and the working section from side to side are of a rod type at both ends, for example, by connecting both ends of the rod to the working frame and connecting the cylinder cylinders to the running frame, respectively, the cylinder cylinders can be moved. It can be provided so as to also serve as a part of the frame or to reinforce it. In other words, one hydraulic cylinder can exert two functions, that is, the left and right moving means and the frame reinforcing means.

If the relative moving mechanism is constituted by a hydraulic cylinder, the right and left positioning of the traveling section and the working section is under the responsibility of only the hydraulic cylinder. Therefore, according to the configuration of claim 2, when the traveling section and the working section come to the predetermined relative set position, the engaging means operates, so that the engaging section imposes resistance to the lateral movement between the traveling section and the working section. Can be given,
At the predetermined set position, the traveling portion and the working portion can be locked without the risk of a displacement movement by the action of both the hydraulic cylinder and the engagement means.

[0011] In the combine, the Glen tank is located to the right of the machine body, so that the working unit moves to the right of the running unit when traveling forward to the field, and the working unit moves backward when the harvesting and threshing is completed. Since it is convenient to shift the leftmost position with respect to the traveling portion, for example, if the engaging means is operated at the left and right end positions, the traveling portion and the traveling portion in the same traveling state for a relatively long time can be used. It is possible to reliably prevent the displacement movement with the working unit. Alternatively, if the predetermined set positions are arranged at appropriate intervals over the entire lateral movement distance, the function of restricting the displacement between the traveling unit and the working unit can be effectively exerted.

According to the third aspect of the present invention, the relative movement between the traveling section and the working section is performed by using two or more rod-type hydraulic cylinders at both ends. Since it is difficult to arrange them, there is a risk that the relative movement is poor or that they cannot be moved. Therefore, since the rod and the frame are connected via an elastic accommodating portion that allows a slight relative movement in the front-rear direction, even if a plurality of hydraulic cylinders are arranged in a completely non-parallel state, they can be moved left and right. The accompanying displacement in the front-rear direction can be absorbed by the elastic accommodating portion, and the above-described poor movement of relative movement or kinking cannot be solved, so that a smooth relative movement behavior can be obtained.

[Effect] In the combine according to any one of the first to third aspects, (a) the traveling unit and the working unit, in which the driving unit and the engine are integrated with the crawler traveling unit, are relatively laterally moved. Correction of left-right balance changes caused by the heavier grain storage unit side as the work progresses, while maintaining a constant relationship between the driving unit and the running location without complicating the driving power transmission system and making it easier to steer. As a result, it is possible to provide a reasonable vehicle body moving device that can improve running performance and maneuverability, and can strengthen and reduce the weight of the frame of the running section or the working section with the hydraulic cylinders constituting the relative moving mechanism.

[0014] In the vehicle body moving device according to the second aspect, while the relative moving mechanism is compactly constituted by a hydraulic cylinder capable of taking out an output while using relatively small parts, an unexpected position between the traveling unit and the working unit due to a leak. The risk of displacement can be eliminated by cooperating with the engaging means at the predetermined set position, so that the effect (a) can be effectively exerted.

In the vehicle moving device according to the third aspect, the rod and the frame are connected by the elastic accommodating portion while the relative moving mechanism is compactly constituted by a plurality of hydraulic cylinders which can take output while being relatively small components. As a result, it is possible to eliminate malfunctions caused by non-perfect parallelism between the hydraulic cylinders, and there is an advantage that smooth relative movement appears.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. Figure 1 shows a side view of the combine.
2 is a plan view, wherein a is a cutting section, b is a threshing section, c is a grain storage section, 1 is a crawler traveling device, 2 is an operating section, 3 is an engine 4 and a transmission 24. Power unit.

The reaping unit a includes a raising device 5, a reaping device 6,
It is provided with a vertical transport device 7 and the like, and can be moved up and down with respect to the machine body. The threshing unit b includes a feed chain 8, a handling room 10 having a handling cylinder 9, a swing sorting device 11, a straw cutter 12, and the like, and is mounted on the left side of the machine. Grain container c
Comprises a grain tank 13 for storing the grains sent from the threshing unit b, an unloader 14 for discharging the grains collected in the grain tank 13 outside the machine, and the like.

In this combine, the crawler traveling device 1
And a working unit B having a cutting unit a, a threshing unit b, and a grain storage unit c. The traveling unit A includes a cutting unit a, a threshing unit b, and a grain storage unit c. A moving mechanism 15 is provided.

As shown in FIG. 1 and FIGS.
Include left and right track frames 19, 19 each having a driving sprocket 16, a tension wheel 17, and a plurality of driven wheels 18.
And a traveling machine base 2 supporting these via an elevating mechanism 20.
1 and a traveling frame 27 for mounting and supporting the driving unit 2 and the driving unit 3, and includes front and rear hydraulic slide cylinders 22 and 23.

As shown in FIG. 1, FIG. 4, FIG. 5, and FIG. 7, the working section B mounts and supports a cutting section a, a threshing section b, a Glen tank 13, a fuel tank 26, and the like on a working frame 25. It is slidably supported in the left-right direction with respect to the traveling frame 27 by applying a rail structure. The rear hydraulic cylinder 23 is configured to penetrate both ends, and its pipe cylinder cylinder 23a is also used as a member connecting the left and right track frames 19, 19, and both ends of the piston rod 23A are connected to the left and right ends of the rear portion of the working frame 25. Connected to. Also, the front hydraulic cylinder 22
The cylinder tube 22a is fixed to the traveling frame 27, and both ends of the piston rod 22A are connected to the left and right ends of the front portion of the working frame 25.

As shown in FIG. 8, four rods 22A,
The 23A working frame 25 is connected via a rubber coupling F. The rubber coupling F has a rubber portion 5
1 and mounting portions 50, 50 on both sides thereof. One mounting portion 50 is fixed to the ends of the rods 22A, 23A, and the other mounting portion 50 is fixed to the work frame 25, respectively.

The piston rods 22A of each hydraulic cylinder,
23A connects the left and right end rods 22c, 23c for forming the oil chambers 22b, 23b with the connecting pipe 22.
It is formed in a long shape connected by d and 23d. That is, the work frame 25 is configured to be slidable left and right within a predetermined range with respect to the traveling frame 27 by the left and right hydraulic cylinders 22 and 23 being driven to move left and right. The situation of the slide movement is as follows.

That is, the amount of leftward projection of the left side plate 28 of the threshing unit b from the left crawler 1L to the left is substantially equal to the amount of rightward projection of the right side plate 13a of the Glen tank 13 from the right crawler 1R. , A standard position where the working unit B projects left and right and laterally from the traveling unit A by a predetermined amount [see FIG.
From the standard position to the moving position (see FIG. 3B) where the working unit B has moved most to the left side opposite to the grain storage unit existing side with respect to the traveling unit A (see FIG. 3B). The relative position between the working unit B and the traveling unit A is moved by the relative moving mechanism 15 including the cylinders 22 and 23. The moving distance between the standard position and the moving position is determined by the hydraulic cylinders 22, 23.
Is the operation length.

As shown in FIG. 5, FIG. 6, and FIGS. 9 to 11, an engaging means H capable of restricting the relative movement between the traveling frame 27 and the working frame 25 is provided. Is set to a state in which the engaging means H operates when a predetermined relative set position is reached. The work frame 25 is mounted on a plurality of inclined rollers 52 mounted on the traveling frame 27, and has a structure in which the roller 52 relatively moves by rolling on the rolling surface 53 on the work frame side. And
At two positions, that is, the position where the Glen tank 13 moves to the rightmost position and the position to the leftmost position, the rolling surface 53 is formed with recessed portions 53a, 53a into which the rollers 52 enter. At both positions, even if the positioning function of the hydraulic cylinders 22 and 23 is incomplete due to leakage or the like, the relative displacement between the traveling portion a and the working portion b does not first occur due to the operation of the engagement means H.

In this combine, a control circuit is provided so that various controls for moving the relative movement mechanism 15 are performed. That is, a grain amount detection stage 41 capable of detecting the amount of grain stored in the Glen tank 13 is provided.
Slide control means C for linking the grain amount detection stage and the relative movement mechanism 15 so that the working unit B moves to the left with respect to the traveling unit A as the amount of kernel stored in the slide unit 3 increases; The control device 37 is provided with mode switching means 39 for switching between an automatic control mode in which the control means C operates and a manual control mode in which the traveling unit A and the work unit B are relatively moved and adjusted by manual operation.

That is, as shown in FIG. 12, the electromagnetic control valves 38 of the front and rear hydraulic cylinders 22 and 23, the mode changeover switch 39, the left / right moving lever 40 for operating the electromagnetic control valve 38, and the lower part of the Glen tank 13 are provided. When the weight detected by the weighing scale 41 is the lightest (when there is no grain), the working unit B is in the standard position closest to the right, and the weighing scale 41 is connected to the control device 37. When the detected weight of 41 is the heaviest (when the grains are fully loaded), the function of the slide control means C is to automatically control the working unit B to the leftmost moving position. When the grain is fully loaded in the Glen tank 13 at the moving position, the weight balance in the left-right direction is set so that loads substantially equal to the left and right crawler traveling devices 1, 1 are applied. .

When the mode changeover switch 39 is switched to "automatic", the above-mentioned slide control means C is operated, and the working unit B is automatically slid horizontally in accordance with the amount of collected grains in the Glen tank 13. The actual slide movement is performed when both the stock switch 46 and the direction switch 47 are turned off.
F, that is, when there is no transported culm in the vertical transport device 7 and there is no cereal culm to be harvested (for example, in the latter half of turning on a headland, at the time of joining, and when traveling between fields) Time).

However, when a clutch switch 45, which will be described later, which detects that the threshing section b is in a driving state, is switched from OFF to ON, the slide control means C is activated, and the Glen tank at that time is activated. The working unit B slides laterally to a position corresponding to the storage amount of the 13th grain. Then, when the clutch switch 45 is switched from ON to OFF, the slide control means C does not operate, and, for example, the working unit B automatically returns to the standard position (storage posture) closest to the right. . Further, since the slide movement does not occur during the work traveling, there is no extra maneuvering operation such as performing steering correction to make the vehicle run straight, even if a roll occurs due to the lateral movement inertia.

A stock switch 46 provided in the vertical conveying device 7 and a direction switch which is a sensor for automatic steering control which is provided at the base of the weeding tool 48 and which works in contact with the planted grain culm. 47 is a well-known one, and detailed description thereof is omitted.

When the mode is switched to "manual", the electromagnetic control valve 38 is operated by operating the left / right moving lever 40, and the working unit B can be arbitrarily moved laterally. As shown in FIG. 5, a stroke sensor 49 of a linear potentiometer type or the like for detecting the movement of the rear hydraulic cylinder 23 is provided so that the left and right positions of the working unit B with respect to the traveling unit A can be fed back. That is, the working unit B moves so as to follow the operation position of the left / right moving lever 40, and moves to the standard position when the left / right moving lever 40 is operated to the far right in FIG. It moves to the movement position.

The left and right moving lever 40 is of an on-off type in which the center is neutral and the working unit B moves to the left when tilted to the left and moves to the right when tilted to the right. By moving the relative movement mechanism 15 by tilting operation and then returning to the neutral position, the working unit B may be operated to an intended position.

For example, when the automatic control mode is selected, the work section B is shifted to the right before the start of the mowing and threshing work, but in a narrow place where the overhanging projection is provided. When passing, it is conceivable that the mode changeover switch 39 is set to "manual" so that the working unit B is moved to the left to allow the passage.

Further, this combine is provided with threshing detecting means 42 for detecting whether or not the threshing section b is in a driving state, and when the automatic control mode is selected,
When the threshing unit b is driven, the slide control unit C is operable, and when the threshing unit b is not operating, the operation of the slide control unit C is disabled. The threshing control means D for linking the switch 39 and the threshing detection means 42 with the control device 37
It is prepared for.

That is, a threshing clutch means 44 for turning on and off a threshing clutch (not shown) and a clutch switch 45 which is activated when the lever position is turned "on" constitute threshing detecting means 42, and a mode changeover switch 39. Is switched to "automatic", the slide control means C is controlled so as to operate when the clutch switch 45 is "on" and not to operate when the clutch switch 45 is "off". It is.

In addition, a travel detecting means 43 for detecting whether or not the aircraft is traveling is provided. When the manual operation mode is selected, the relative movement mechanism is provided only when the aircraft is not traveling. The control device 37 is provided with travel control means E for linking the mode changeover switch 39, the travel detection means 43, and the relative movement mechanism 5 so that the control unit 15 can operate.

That is, when the speedometer 46 as the travel detecting means 43 is connected to the control device 37 and the mode changeover switch 39 is switched to "manual", the speed detected by the speedometer 46 becomes zero (or When the speed is lower than or equal to an extremely low speed, a manual operation of laterally moving the working unit B using the left / right moving lever 40 is possible. However, when the detection speed of the speedometer 46 is not zero (or when the speed is higher than the extremely low speed). Even if the left / right moving lever 40 is operated by locking the electromagnetic control valve 38 to the neutral position, the relative moving mechanism 15
Is controlled not to move.

[Brief description of the drawings]

FIG. 1 is a side view of a combine.

FIG. 2 is a plan view of the combine.

3A is a rear view when the working unit is at a standard position closest to the right side. FIG. 3A is a rear view when a working unit is at a moving position closest to the left side.

FIG. 4 is a side view showing a frame of a traveling unit and a working unit.

FIG. 5 is a plan view showing a frame of a traveling unit and a working unit.

FIG. 6 is a plan view showing a frame of a traveling unit.

FIG. 7 is a plan view showing a frame of a working unit.

FIG. 8 is a cross-sectional view showing the structure of a slide hydraulic cylinder.

FIG. 9 is a front view of a main part showing a slide structure between a traveling unit and a working unit.

FIG. 10 is a sectional side view showing an engagement means in the slide structure of FIG. 9;

FIG. 11 is a front view showing an engagement means.

FIG. 12 is a control block diagram.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Crawler traveling device 2 Operating part 4 Engine 15 Relative moving mechanism 22, 23 Hydraulic cylinder 23a Cylinder cylinder 23A Rod 25 Traveling frame 27 Working frame a Cutting part b Threshing part c Kernel storage part A Traveling part B Working part F Elastic accommodating member H engaging means

Claims (3)

[Claims] 1. A relative movement adjustment of a traveling unit including a crawler traveling device, an operation unit, an engine, and a working unit including a cutting unit, a threshing unit, and a grain storage unit in the left-right direction of the machine body. A relative movement mechanism, comprising a traveling frame constituting the traveling section, and a double-sided rod-type hydraulic cylinder provided over a working frame constituting the working section, to constitute the relative movement mechanism; The hydraulic cylinder is configured as a double-sided rod type in which a rod projects from each side of the cylinder cylinder, and the cylinder cylinder is connected to one of the traveling frame or the working frame, and the traveling frame or the work A combine body moving device in which the rods are connected to the other of the frames. 2. A state in which an engaging means capable of restricting relative movement between the traveling frame and the work frame is provided, and the engaging means operates when the traveling section and the working section reach a predetermined relative set position. The combine body moving device according to claim 1, wherein 3. A plurality of hydraulic cylinders are provided at the front and rear, and the respective rods and the working frame or the traveling frame are connected via an elastic accommodating member that allows a slight relative movement of both of them in the front and rear direction. 3. The combine body moving device according to claim 1, wherein