JP3662189B2 - Combine operation structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an operation structure for a combine having an operation for turning on and off a threshing clutch and a reaping clutch.
[0002]
[Prior art]
In the conventional combine, as shown in Japanese Patent Laid-Open No. 10-333763, a threshing clutch lever for turning on and off the threshing clutch and a reaping clutch lever are provided in parallel.
[0003]
[Problems to be solved by the invention]
In the prior art, since each clutch is provided with a dedicated operation lever, there are various problems such as an increase in the number of parts, a sufficient installation space, and a problem of erroneous operation in which a lever different from the intended operation lever is operated. I had a problem to solve.
Moreover, as shown by the part number 55 of Unexamined-Japanese-Patent No. 10-333763, although the threshing clutch lever and the reaping clutch lever can be operated independently, the threshing clutch lever can be operated. In some cases, the threshing clutch lever must be engaged and operated, so that a mechanism for linking the threshing clutch lever and the mowing clutch lever is required. This means that the threshing clutch needs to be turned on and operated in order to enable pillow handling, and the cutting clutch is turned on and operated to prevent clogging of the cereals in the threshing device during cutting. This is in order to cope with the need to engage and operate the threshing clutch.
Therefore, since the linkage structure of the threshing clutch lever and the mowing clutch lever is required, there is a drawback that the structure is likely to be complicated.
[0004]
An object of the present invention is to provide a clutch operating structure with good operability while eliminating the above-mentioned conventional drawbacks.
[0005]
[Means for Solving the Problems]
〔Constitution〕
The configuration of claim 1 includes a cutting clutch that turns on and off power to a pre-cutting processing unit that raises and cuts a planted culm, and a threshing clutch that turns on and off power to a threshing unit that threshs the harvested culm. And a single clutch operating lever and the threshing clutch are interlocked and connected, and the cutting clutch is turned on by the operation of the actuator based on the detection operation of the cutting clutch switch, and the detection operating state of the cutting clutch switch is released. The reaping clutch is disengaged, and the single clutch operating lever is operated in one direction to operate the threshing clutch on and off, and the single clutch operating lever is different from the one direction. the reaper clutch switch operation permitting and blocking the reaper clutch actuated by operating the direction The operation length of the reaping clutch operating area for operating the clutch operating lever is configured to be shorter than the operating length of the threshing clutch operating area for operating the clutch operating lever. A mechanism (28) for positioning at the position of the detection operation state of the reaping clutch switch is provided .
[0006]
According to a second aspect of the present invention, in the configuration of the first aspect, the threshing clutch is configured as a tension type clutch, and the tension type threshing clutch is operated by turning a single clutch operation lever in the front-rear direction of the operator. to configured to, characterized in that the state set to state enters the threshing clutch is arranged to operate the reaper clutch switch is operated in the lateral direction of the pilot the single clutch operation lever It is what.
[0007]
[Function and effect]
According to the configuration of claim 1, since the cutting clutch can be turned on and off and the threshing clutch can be turned on and off with a single operating tool, it is possible to use only one operating tool and reduce the installation space. The number of points is small, and there are few mistakes in handling when operating.
Moreover, since the operation mode is set in a direction in which the operation direction for turning on and off the threshing clutch and the direction for turning on and off the reaping clutch are set, even if it is a single operation tool, the operation is not performed erroneously. The operability is also good.
[0008]
According to the configuration of claim 2, when operating a threshing clutch that employs a belt tension type clutch structure, it is relatively easy to move the arm and move it over a large range, and it is easy to put an operating force. When operating a cutting clutch that only requires the clutch switch to be moved along the front / rear direction of the user, it is not necessary to move the arm to be operated too much, and a large operation is required. Since the clutch operation lever is set to move along the left / right direction of the driver who does not require force, the operability can be improved.
A structure that does not require a linkage mechanism (a mechanism shown by part number 55 in Japanese Patent Laid-Open No. 10-333763) that is required when two clutch operation levers are provided, and that exhibits the same function as the linkage mechanism As described above, since the configuration is adopted in which the clutch switch is operated by operating the threshing clutch in the left-right direction with the clutch operation lever from the state in which the threshing clutch is set to the on state, the operation structure becomes simple.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 is a side view of the front part of the combine, and FIG. 2 is an overall plan view of the combine. Reference numeral 1 denotes an operation part, 2 denotes a pre-cutting part, 3 denotes a threshing part, 4 denotes a glen tank, and 5 denotes a crawler type. It is a traveling device. Reference numeral 6 denotes a feed chain, and 7 denotes a vertical transport mechanism that joins the cereals harvested by the cutting unit 2 and sends them to the feed chain 6. This combine is switched to the lower non-operating position during cutting and threshing work while traveling, and is switched to the upper operating position when pillow handling is performed by driving only the threshing section while stopping the traveling and cutting of the machine. A start end cover 8 is provided.
[0010]
The transmission structure to the threshing unit 3 and the pre-cutting processing unit 2 will be described.
As shown in FIG. 3, the input shaft 10 is provided for the mission case 9, the input shaft 10 and the engine 11 are interlocked by the transmission belt 12, and the engine 11 and the threshing portion 3 can be transmitted by the transmission belt 32. The threshing clutch 33 is provided for the transmission belt 32. On the other hand, in the transmission case 9, the auxiliary transmission gear mechanism 13 is provided on the input shaft 10, the output shaft 14 to the pre-cutting processing unit 2 is provided in parallel with the input shaft 10, and the cutting transmission gear mechanism 15 is provided on the output shaft 14. Is provided. A transmission belt 16 is installed over the output shaft 14 and the input portion of the pre-cutting processing unit 2, and a cutting clutch 29 is provided for the transmission belt 16.
[0011]
The operation structure of the threshing clutch 33 and the reaping clutch 9 will be described.
As shown in FIG. 4, the tension type threshing clutch 33 and the tension type reaping clutch 29 are configured to be turned on and off manually, and the structure of the threshing clutch 33 will be described.
In other words, the operation lever 34 that can swing at the lateral support point Y and the tension arm 35 including the tension ring 35A that acts on the transmission belt 32 are interlocked and connected to the control box 37 via the interlocking member 36, and the support point Y is By adopting the "K" shaped chord plate 36a that can be bypassed, the threshing clutch 33 is configured to exceed the dead point when the threshing clutch 33 is turned on and off, so that the threshing clutch 33 can be maintained both on and off. The operation lever 34 is configured as a toggle lever.
Here, the interlocking member 36 includes a chord plate 36a, a linkage rod 36b connected to the chord plate 36a, and an absorption spring 36c connected to the linkage rod 36b.
[0012]
As shown in FIGS. 4 and 5, an interlocking arm 31 that swings around the fulcrum Y with the clutch operation lever 34 and that connects one end of the chord plate 36 a to the tip portion so as to be relatively swingable is provided. Even when the clutch operating lever 34 is set to the threshing-in position, the interlocking arm 31 is prevented from leaving the dead point by the following configuration. That is, the clutch operating lever 34 is received by bringing the folding stopper 30 formed on the interlocking arm 31 into contact with the edge of the notch provided in the control box 37. As a result, as will be described later, the operation load is not increased when the clutch operating lever 34 is swung left and right to operate the cutting clutch 29.
A threshing switch 27 is provided in the vicinity of the fulcrum Y, and the operation piece 31A formed on the interlocking arm 31 is configured to contact the threshing switch 27 when the clutch operating lever 34 is set to the threshing cut position. Based on the operation of detecting the threshing state of the threshing switch 27, for example, a signal for performing cutting height control for adjusting the cutting height is issued.
[0013]
As shown in FIGS. 6 and 7, the clutch operating lever 34 has its support end frame 34 </ b> A pivoted about the longitudinal axis X perpendicular to the fulcrum Y with respect to the base end portion of the interlocking arm 31. 38, and a ball detent mechanism 28 for positioning is provided across the base end frame 34A and the interlocking arm 31. When the clutch operating lever 34 is swung around the support shaft 38, the reaping clutch When performing the on / off operation of 29, the clutch operating lever 34 is operated to the left and right to position the cutting position of the reaping clutch 29 and the on position.
[0014]
The structure of the mowing clutch 29 is as follows.
As shown in FIG. 9, a clutch arm 17 that pivotally supports a tension wheel 17A that acts on the transmission belt 16 is provided. As a mechanism for driving the clutch arm 17, a swing drive arm 18 and its swing are provided. A fan-shaped gear 19 that rotates integrally with the dynamic drive arm 18, a pinion gear 20A that meshes with the fan-shaped gear 19 and drives the fan-shaped gear 19, an electric motor 20 as an actuator with the pinion gear 20A attached thereto, and a swing drive An interlocking rod 21A for connecting the arm 18 and the clutch arm 17 and a stroke absorbing spring 21B are provided.
[0015]
The operation structure for turning the cutting clutch 29 on and off is as follows.
As shown in FIGS. 6, 9, and 11, a limit switch type cutting clutch switch 26 that detects a state in which the clutch operating lever 34 is set to the operating position with the cutting clutch is provided, and the detection result of the cutting clutch switch 26 is controlled. Introduced in the device 25, the control device 25 gives an operation signal to the electric motor 20, and drives the pinion gear 20A, the fan-shaped gear 19, the interlocking rod 21A, the absorption spring 21B, and the clutch arm 17 to turn on and off the cutting clutch 29. To be configured.
[0016]
As shown in FIG. 10, the lever guide 22 of the clutch operation lever 34 includes a threshing clutch operation area a for turning on and off the threshing clutch 33, and a cutting clutch operation area b provided in a direction orthogonal to the threshing clutch operation area a. In the threshing clutch operation area a, the clutch operating lever 34 is swung largely in the longitudinal direction of the machine body and turned on and off, and the threshing clutch cutting operation position is reached at the rear end position. When the threshing clutch cutting operation position is swung forward, the threshing clutch entering operation position is set at the front end position. In the threshing clutch operation area a, the cutting clutch 29 is in a disconnected state. If the clutch operation lever 34 is swung to the right from the operation position with the threshing clutch at the front end position, the operation position with the harvesting clutch can be set.
[0017]
The reason why the operation length of the threshing clutch operation area a is longer than that of the reaping clutch operation area b is that a stroke is required to operate the tension type threshing clutch 33 on and off. On the other hand, in the operation to the cutting clutch 29 which only needs to operate the cutting clutch switch 26, a short stroke from the cutting clutch disengagement position to the cutting clutch entering operation position is sufficient, so that the wrist is slightly returned from the state where the long stroke is operated. Switching operation can be performed only by an operation of a simple hand.
[0018]
[Another embodiment]
(1) To set the threshing operation area a and the mowing operation area b by moving the clutch operation lever 34 in different directions, it is not necessary to set on the horizontal plane, but on an arbitrary plane such as a vertical plane It is not necessary to maintain the state where the threshing operation area a and the cutting operation area b are orthogonal to each other.
(2) As the on / off operation structure of the reaping clutch 29, a signal from the reaping clutch switch 26 is received and an operation signal is given to the solenoid valve by the control device 25, and the hydraulic actuator is driven to engage and actuate the reaping clutch 29. Constitute.
(3) As shown in FIG. 12, the configuration of the cutting clutch 29 is that the two-stage transmission gears 39A and 39B are configured to be normally bitten and the two-stage transmission gears 39A and 39B are configured as the configuration of the cutting transmission gear mechanism 15. And a shift gear 39C that can be positioned at an intermediate position that does not mesh with either of the two-stage transmission gears 39A and 39B, and the cutting gear mechanism 15 and the cutting clutch 29 are combined. Also good.
[Brief description of the drawings]
FIG. 1 is a side view of a combine front part. FIG. 2 is an overall plan view of the combine. FIG. 3 is a configuration diagram showing a power transmission system to a pre-cutting processing part and a threshing part. Fig. 5 is a side view showing the threshing clutch and the operating structure. Fig. 5 is a side view showing the threshing clutch and the operating structure. Fig. 6 is a longitudinal section showing the clutch operating lever as viewed from the rear. FIG. 7 is a diagram showing a state in which the clutch operating lever is viewed from the direction along the Y-axis core direction. FIG. 8 is an exploded perspective view of the clutch operating lever. FIG. FIG. 10 is a plan view showing a guide groove for a clutch operating lever. FIG. 11 is a block diagram showing a drive control structure of a cutting clutch. FIG. 12 shows a state where a cutting clutch and a cutting transmission mechanism are provided in a transmission case. Show Adult view DESCRIPTION OF SYMBOLS
2 Cutting pretreatment unit 3 Threshing unit 26 Cutting clutch switch 29 Cutting clutch 33 Threshing clutch 34 Clutch operating lever

Claims (2)

The cutting clutch (29) that turns on and off the power to the pre-cutting processing unit (2) that raises the planted cereal and performs the cutting process, and the power to the threshing unit (3) that threshs the harvested cereal. A threshing clutch (33) is provided, and a single clutch operating lever (34) and the threshing clutch (33) are interlockedly connected to each other, and the reaping clutch is activated by an actuator based on a detection operation of the reaping clutch switch (26) (29) is turned on, and when the detection operation state of the cutting clutch switch (26) is released, the cutting clutch (29) is disengaged , and the single clutch operating lever (34) is operated in one direction. by, be operated in a different direction to the one direction the single clutch operation lever (34) with operating permitting and blocking the threshing clutch (33) The operation length of clutch operation range (b) cutting said reaper clutch switch (26) is actuated configured to operate permitting and blocking the reaper clutch (29), for operating the clutch lever (34) by, The clutch operating lever (34) is configured to be shorter than the operating length of the threshing clutch operating area (a), and the clutch operating lever (34) is connected to the cutting clutch switch (26) where the cutting clutch (29) is engaged. An operation structure of a combine provided with a mechanism (28) for positioning to a position in a detection operation state . The threshing clutch (33) while constituting a tension type clutch, and configured to operate permitting and blocking the tension type threshing clutch is moved in the longitudinal direction (33) of the operator a single clutch operation lever (34) The threshing clutch (33) is set to the engaged state, and the single clutch operation lever (34) is operated in the left-right direction of the operator to operate the reaping clutch switch (26). The combine operating structure according to claim 1.

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