JP4038605B2 - Combine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combine telescopic auger device, which belongs to the technical field of agricultural machinery.
[0002]
[Prior art]
Conventionally, a combiner has a configuration in which a threshing device for threshing a harvested cereal culm and a grain tank for storing and storing the grain after threshing can be continuously performed. And when the grain which is sequentially stored reaches full as the work progresses, the Glen tank waits for the stored grain from the built-in discharge spiral using the cerealing device and the discharge organ. It is configured to be carried out to the tank of the inside truck.
[0003]
The carry-out agar is provided on the base-side fixed transport cylinder by slidingly inserting a front-end movable transport cylinder having a grain discharge port, and the grain discharge port at the transport end is in the perspective direction. It can be expanded and contracted. And the diameter of the fixed conveyance cylinder was the same from the connection part of a whipping cylinder to the vicinity of the fitting part of a movement conveyance cylinder.
[0004]
[Problems to be solved by the invention]
The telescopic auger device works by locating the grain discharge port at the transport end of the mobile transport cylinder with the tank of the truck and determining the unloading location. However, when the mobile transport cylinder is extended, a bending moment is generated, There was a problem that the grain discharge auger was bent. For this reason, since various reinforcement | strengthening was performed in order to increase the rigidity of a grain discharge auger, the malfunction that the weight of the whole grain discharge auger and the combine became heavy generate | occur | produced.
[0005]
[Means for Solving the Problems]
The present invention takes the following technical means in order to solve the above-described problems. That is, in the invention according to claim 1, on the traveling vehicle body ( 2 ) having the traveling device ( 1 ) , the grain tank ( 3 ) for temporarily storing the grains and the grain tank ( 3 ) for temporary storage. A harvesting cylinder ( 4 ) for discharging the grain and a grain carrying out auger ( 5 ) , the grain carrying out auger ( 5 ) comprising a fixed conveying cylinder ( 6 ) and the fixed conveying cylinder ( 6 ) and a movable transfer cylinder ( 7 ) that moves and expands and contracts in the longitudinal direction, and is configured to support the fixed transfer cylinder (6) by the lifting hydraulic cylinder (26). ) Is a configuration in which the position of the grain outlet (15) is changed by changing the position to the extension position and the reduction position by the expansion / contraction control motor (23) installed at the upper position of the cereal cylinder (4), and the fixing moving the transport tube from the connecting portion of the transport tube (6) is the AgeKoku cylinder (4) (7 Constructed over the mating portion near the smaller diameter, also the diameter of the moving conveyance tube diameter of the fixed transporting cylinder (6) is fitted on the fixed conveying tube due to smaller (6) (7) In the structure of making it small, in the pitch (P1) of the lifting helix (13) in the above-mentioned hulling cylinder (4) and the pitch (P2) of the conveying helix (14) in the said fixed conveying cylinder (6) When the pitch (P2) of the transport spiral (14) is made larger than the pitch (P1) of (13), the pitch (about the extent that the diameter of the fixed transport cylinder (6) is reduced to reduce the transport capability ( P2) is configured so that the conveying capacity of the milling cylinder (4) and the fixed conveying cylinder (6) does not change, and the expansion / contraction control motor (23) is arranged so as not to protrude rearward of the milling cylinder (4) . They are obtained by a Konbai down, characterized in.
[0006]
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The grain tank 3 of the combine is not specifically shown, but as is well known in the art, it is mounted on the traveling vehicle body 2 alongside the side portion of the threshing device, and from the threshing device to the first cerealing device It is set as the structure which can store the grain after the threshing and the selection conveyed through. As shown in FIG. 1, the discharge spiral 10 is provided by being mounted on the bottom of the Glen tank 3, the start end side is connected to the transmission shaft 11 outside the machine via the clutch device 12, and the end side is grounded. It extends to the lower part of the tube 4 and is connected to the lower end of the whipping spiral 13 that is housed.
[0008]
And the grain carrying-out auger 5 is comprised from the fixed conveyance cylinder 6 connected to the upper part of the said whipping cylinder 4 freely in the up-down direction, and the movement conveyance cylinder 7 connected to this, The configuration will be specifically described below.
First, as shown in FIG. 1, the fixed conveying cylinder 6 is provided with a base portion connected to an upper portion of the whipping cylinder 4 and a distal end portion extending outward, and a start end portion is provided in the cylinder. A conveying spiral 14 connected to the grain helix 13 is internally provided to convey the grain inherited from the whipping cylinder 4.
[0009]
As shown in FIG. 1, the movable transport cylinder 7 is provided with a grain outlet 15 opened at the tip, and the base side is inserted and fitted from the front end of the fixed transport cylinder 6 to freely slide. It is linked to.
Next, as shown in FIG. 1, the telescopic moving spiral group 8 </ b> A has a front end bearing in a position above the grain outlet 15 and a rear portion extending toward the fixed conveying cylinder 6 in the movable conveying cylinder 7. A transmission shaft 16 that is slidably inserted into the shaft of the transporting spiral 14 is provided on the shaft, and a plurality of helical stretchable moving spirals 8 are slidably fitted to the transmission shaft 16 so as to be spaced apart from each other. It can be adjusted.
[0010]
As shown in FIG. 2, the helical extension / contraction helix 8 has a helical portion formed by a mounting member 18 formed in a substantially semi-cylindrical shape on the outer periphery of a bearing boss 17 that is slidably fitted to the transmission shaft 16. 19 is attached. As shown in FIG. 2, the bearing boss 17 is formed shorter than the conventional type and has a relationship of A (dimension of the bearing boss 17 of the present proposal) <B (dimension of the conventional bearing boss). Therefore, when the helical extension / contraction spiral 8 is close to the adjacent spiral portion 19 'as shown in FIG. 4 (see the left portion of FIG. 4), the helical extension / contraction motion 8 between the adjacent bearing bosses 17' is shown. It is formed in a short length so as not to contact with each other. The bearing boss 17 is provided with a spacer projection 20 at its end to maintain a distance from the adjacent bearing boss 17 '. Reference numeral 21 denotes a helical locking body that locks adjacent helical portions 19 ′ to prevent separation (the helical portions 19 are connected even if the helical expansion / contraction moving spiral 8 is farthest away). It is said.
[0011]
The helical extension / contraction moving spiral 8 configured in this way is restricted in the rotational direction and free to slide in the axial direction with respect to the transmission shaft 16 having a square axis (hexagonal axis in the embodiment). Thus, a plurality of stretchable spiral groups 8A are formed by a plurality of them.
[0012]
Next, as shown in FIG. 1, the expansion / contraction drive device 22 is forced to connect the base end portion of the screw shaft 24 to the expansion / contraction control motor 23 provided at the upper position of the whipping cylinder 4 via a reduction device. It is configured to drive. The moving device 25 is provided so as to be forcibly moved in the axial direction via a transmission pin engaged with the screw groove of the screw shaft 24, and is integrally formed on the base side of the movable transfer cylinder 7. Concatenated. As shown in FIG. 1, the expansion / contraction driving device 22 is provided with limit sensors S1 and S2 on the reduction side and the expansion side, respectively, and automatically stops the expansion / contraction control motor 23 when the moving device 25 reaches. Yes.
[0013]
Although not specifically shown, the expansion / contraction control motor 23 is driven in the forward or reverse direction based on the ON operation of a switch (extension switch) provided on the operation panel of the cockpit. The screw shaft 24 is configured to rotate, and if the screw shaft 24 rotates forward, the movable transfer cylinder 7 is extended via the engaged moving device 25, and if it is reversed, it is forcibly moved in the reduction direction. It is configured.
[0014]
In this way, the moving conveyance cylinder 7 is expanded and contracted along the cylinder in a state of being fitted to the fixed conveyance cylinder 6, and the position of the grain outlet 15 at the distal end portion is set with respect to the rooted cereal cylinder 4. Therefore, it is possible to select the position where the grain falls by adjusting the distance or the distance.
In FIG. 1, reference numeral 26 denotes an elevating hydraulic cylinder, 27 denotes a turning motor, 28 denotes a drive gear, and 29 denotes a turning gear.
[0015]
As shown in FIG. 1, the support roller 30 is provided so as to pivot on the lower portion of the base position of the movable transport cylinder 7 and supports the peripheral surface of the fixed transport cylinder 6 while rolling. In addition, a guide wheel 31 is provided above the base position of the movable transfer cylinder 7, and a guide rail 32 for guiding the guide wheel 31 is provided in the longitudinal direction of the fixed transfer cylinder 6. Specifically, as shown in FIG. 5, the guide wheel 31 is composed of a left guide wheel 31a and a right guide wheel 31b, each connected by a shaft 31c. The guide rail 32 includes a left guide rail 32a provided outside the left guide wheel 31a and a right guide rail 32b provided outside the right guide wheel 31b.
[0016]
Further, the shape of the ground contact surface of the left guide wheel 31 a and the right guide wheel 31 b with respect to the fixed transport cylinder 6 is configured to be substantially the same as the outer peripheral surface shape of the fixed transport cylinder 6. Therefore, the movable transfer cylinder 7 tries to rotate in the circumferential direction, that is, the swing reduction is remarkably reduced.
[0017]
When the combine configured as described above is advanced while being operated, the planted cereal is harvested by the reaping device 33, which is a well-known technique for the combine operation, and then conveyed to the start end of the threshing device 34, and fed. While being transported in the chain 35, the threshing is selected. The grain that has been threshed and sorted by the threshing device 34 is temporarily stored in the Glen tank 3, and when the grain in the Glen tank 3 is full, the grain discharge auger 5 is detached from the auger receiver 36, The grain is discharged from the grain carrying out auger 5 to a loading platform such as a truck. At this time, when the position of the grain outlet 15 is short, the movable transfer cylinder 7 is extended so that the grain is discharged further. Moreover, the moving conveyance cylinder 7 is extended and contracted so that the grains are uniformly discharged to the loading platform. Thus, when the grain in the Glen tank 3 is completely discharged, the grain carrying out auger 5 is stored again in the auger receiver 36.
[0018]
When the movable transfer cylinder 7 is extended, a bending moment due to gravity acts, causing a problem that the grain discharge auger 5 itself bends downward. Further, since the grain discharge auger 5 is reinforced to prevent such bending, the weight of the grain discharge auger 5 itself is increased and the weight of the entire combine is also increased.
[0019]
In view of this, the diameter of the movable transfer cylinder 7 is reduced to reduce the weight of the movable transfer cylinder 7 itself. Along with this, the diameter of the fixed conveyance cylinder 6 fitted to the movable conveyance cylinder 7 is also reduced. This specific drawing is shown in FIG. That is, the diameter of the fixed conveying cylinder 6 is reduced from the connecting portion of the cerealing cylinder 4 to the vicinity of the fitting portion of the moving conveying cylinder 7. Thereby, since the bending moment is small even if the movable conveyance cylinder 7 is extended, the grain discharge auger 5 itself can be prevented from being greatly bent downward.
[0020]
If comprised as mentioned above, the resistance which the grain conveyed from the whipping cylinder 4 becomes small by the diameter of the fixed conveyance cylinder 6 becoming small, and it becomes easy to generate | occur | produce deflation. Therefore, the pitch P2 of the conveying spiral 14 of the fixed conveying cylinder 6 is configured to be larger than the pitch P1 of the pulverizing spiral 13 of the cerealing cylinder 4. Thereby, the fall of the conveyance capability in the fixed conveyance cylinder 6 and the deflation of a grain can be prevented. As a situation where the pitch P2 is increased, it is desirable to compensate for the reduced diameter of the fixed conveying cylinder 6.
[0021]
Next, another embodiment of the combine having the above-described configuration will be described with reference to FIGS.
The upper part of the screw shaft 24 of the telescopic drive device 22 is covered with a cover 37. In the cover 37, the limit sensors S1 and S2 are built in. This is to protect the limit sensors S1 and S2 and the screw shaft 24 from rain and dust.
[0022]
Conventionally, when performing maintenance management of the limit sensors S1 and S2, the entire cover 37 has to be removed, which is troublesome. Therefore, only the upper part of the limit sensors S1, S2 can be opened and closed. That is, the cover 37a can be opened and closed by the butterfly 38a above the limit sensor S1, and the cover 37b can be opened and closed by the butterfly 38b above the limit sensor S2. FIG. 10 shows a cross section AA of FIG. When the cover 37b is closed, it is fixed with the butterfly nut 39. Thereby, maintenance management of limit sensors S1 and S2 can be easily performed.
[0023]
Next, another embodiment of the combine having the above-described configuration will be described with reference to FIGS.
Regarding the arrangement of the expansion / contraction control motor 23, conventionally, it has protruded to the rear of the connecting cylinder 40 connecting the fixed conveying cylinder 6 and the cerealing cylinder 4, or to the rear of the groining cylinder 4. 12, when the grain discharge auger 5 turns in the plan view of FIG. 12, the rear part of the expansion / contraction control motor 23 comes into contact with the Glen tank 3, so that the shape of the Glen tank 3 is cut. I was doing. For this reason, the malfunction that the capacity | capacitance of the Glen tank 3 decreases occurred.
[0024]
Therefore, the rear portion of the expansion / contraction control motor 23 is configured not to protrude rearward from the connection tube 40 or the cereal tube 4. Thereby, even if the grain discharge auger 5 turns, the rear part of the expansion / contraction control motor 23 can be prevented from coming into contact with the Glen tank 3, and the shape of the Glen tank 3 does not need to be cut. 3 can be prevented from decreasing. Further, when the entire combine is covered with a sheet, the rear part of the expansion / contraction control motor 23 does not get in the way, so that the sheet can be smoothly hung.
[0025]
Next, another embodiment of the combine having the above-described configuration will be described with reference to FIG.
As a method for knowing how much the movable conveyance cylinder 7 has been extended when the movable conveyance cylinder 7 is extended with respect to the fixed conveyance cylinder 6, an expansion / contraction amount confirmation means 41 is provided on the outer peripheral surface of the fixed conveyance cylinder 6. The configuration. Specifically, it may be a measure in which a numerical value is described, or may be configured such that the color changes with a change in the amount of expansion / contraction, but in short, anything may be used as long as the amount of expansion / contraction of the movable transport cylinder can be determined.
[0026]
As a result, the operator can visually confirm the amount of expansion and contraction of the movable transport cylinder 7, and can call attention to the operator. Therefore, when turning, the operator pays particular attention, so that the danger can be avoided by shrinking the movable transport cylinder 7 or stopping the turning of the grain discharge auger 5 when it is dangerous. .
[0027]
【The invention's effect】
In the first aspect of the present invention, the fixed conveying cylinder 6 is configured such that its diameter decreases from the connecting portion of the cerealing cylinder 4 to the vicinity of the fitting portion of the moving conveying cylinder 7, and the diameter of the fixed conveying cylinder 6 is small. Accordingly, the diameter of the moving conveyance cylinder 7 fitted to the fixed conveyance cylinder 6 is also reduced. Thus, the weight of the fixed conveying tube 6 and the mobile conveyor tube 7 becomes light, moment even extend the moving transporting cylinder 7 in the extended position moves the transport tube 7 itself is going S'Agaro downward small Kunar. Since this moment increases from the portion supporting the fixed conveyance cylinder by the lifting hydraulic cylinder to the grain discharge port 15, the moment is reduced by reducing the weight of the movable conveyance cylinder 7. And it can prevent that the grain discharge auger 5 itself bends greatly below.
[0028]
Moreover, in making pitch P2 of the conveying helix 14 larger than the pitch P1 of the whipping helix 13 in the pitch P1 of the helix helix 13 in the whipping cylinder 4 and the pitch P2 of the conveying helix 14 in the fixed conveying cylinder 6, Since the conveying capacity of the whipped cylinder 4 and the fixed conveying cylinder 6 is configured so as not to change as the pitch P2 is such that the diameter of the fixed conveying cylinder 6 is reduced and the conveying capacity is reduced, the conveyance capacity is reduced. Can be prevented.
In addition, since the expansion / contraction control motor 23 is disposed so as not to protrude rearward of the whipping cylinder 4, it is possible to prevent the rear portion of the expansion / contraction control motor 23 from coming into contact with the glen tank 3 even if the grain discharge auger 5 turns. It becomes like this. Moreover, since it is not necessary to cut the shape of the Glen tank 3, it can prevent that the capacity | capacitance of the Glen tank 3 decreases. Further, when the entire combine is covered with a sheet, the rear portion of the expansion / contraction control motor 23 does not get in the way, so that the sheet can be smoothly hung.
[Brief description of the drawings]
[Figure 1] Right side view [Figure 2] Right side view [Figure 3] Rear view [Figure 4] Right side view [Figure 5] Cross-sectional view [Figure 6] Combine left side view [Figure 7] Right side view [ 8] Right side view [FIG. 9] Perspective view [FIG. 10] Cross-sectional view [FIG. 11] Right side view [FIG. 12] Plan view [FIG. 13] Right side view [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Traveling device, 2 ... Traveling vehicle body, 3 ... Glen tank, 4 ... Grain barrel, 5 ... Grain carrying out auger, 6 ... Fixed conveyance cylinder, 7 ... Moving conveyance cylinder, 13 ... Grain raising spiral, 14 ... Conveyance spiral 15 ... grain outlet, 23 ... expansion / contraction control motor, 26 ... elevating hydraulic cylinder, P1 ... pitch, P2 ... pitch.

Claims (1)

On the vehicle body having a driving device (1) (2), AgeKoku barrel for discharging the grain tank (3) for temporarily reserving the grain, the grain that has been temporarily reserving at the grain tank (3) ( 4) and a combine provided with a grain unloading auger (5), 該穀grain unloading auger (5) is fixed transporting cylinder (6) fitted to the fixed transporting cylinder (6), longitudinal The movable transfer cylinder ( 7 ) is configured to support the fixed transfer cylinder (6) with the lifting hydraulic cylinder (26), and the movable transfer cylinder (7) is an upper part of the cereal cylinder (4). The position of the grain outlet (15) is changed by changing the position to the extended position and the reduced position by the expansion / contraction control motor (23) installed at the position, and the fixed conveying cylinder ( 6 ) small diameter from the connecting portion (4) toward the fitting portion vicinity of the moving conveying tube (7) So as to constitute, a diameter of even smaller configuration of the mobile conveyor tube diameter of the fixed transporting cylinder (6) is fitted on the fixed conveying tube due to smaller (6) (7), said AgeKoku tube In the pitch (P1) of the cerealing spiral (13) in (4) and the pitch (P2) of the conveying spiral (14) in the fixed conveying cylinder (6), the pitch (P1) of the cerealing spiral (13) Also, when the pitch (P2) of the conveying helix (14) is increased, the milling cylinder (4) is used as a pitch (P2) to replenish the reduced conveying capacity due to a decrease in the diameter of the fixed conveying cylinder (6). a conveying capacity of the fixed transporting cylinder (6) is configured not to change, Konbai down the expansion control motor (23), characterized in that arranged so as not to protrude rearward of AgeKoku tube (4).

Images