JP5066939B2 - Combine grain discharging device - Google Patents

Description

The present invention is related to grain discharge device for combine.

Conventionally, as an example of a discharge device that discharges grains stored in a grain tank of a combine to the outside of the machine, a cereal cylinder equipped with a cerealing helix and an upper part of the cerealing cylinder and a conveying helix are provided. a fixed-side transporting cylinder, a telescopic and furnished the conveying helix flexible here movable movable transporting cylinder, a screw child-like shaft of the forward and reverse drivable telescopic drive for this movement stretching the movable transporting cylinder, stationary There is an extendable grain discharging apparatus having a configuration including a guide roller that smoothly slides the moving side transfer cylinder with respect to the transfer cylinder (see, for example, Patent Document 1).
JP 2001-299069 A

  In the above-described conventional grain discharging device, the screw-like shaft for expansion and contraction driving for extending and retracting the moving side transfer cylinder is disposed directly above the tops of the fixed side transfer cylinder and the moving side transfer cylinder. The height of the combine equipped with the equipment has increased, making it difficult to store in the barn or warehouse.

The present invention has taken the following technical means in order to solve the above-described problems.
That is, the inventions of claim 1, and AgeKoku cylinder was furnished the AgeKoku spiral (9) (10) and interior of the conveying spiral (11) communicates with the upper portion of the AgeKoku cylinder (10) fixed A side transfer cylinder (12), a moving side transfer cylinder (14) that slides in the axial direction relative to the fixed side transfer cylinder (12), and includes an extendable transfer spiral (13), and the movement side A screw shaft (23) for extending / contracting driving that slides the transport cylinder (14) with respect to the fixed transport cylinder (12), and a moving transport cylinder (14) with respect to the fixed transport cylinder (12). in grain discharge device for a combine having a guide roller (31) for sliding guide, said threaded sub-like shaft (23), to avoid the top of the fixed-side transfer cylinder (12) the fixed side conveyance cylinder (12 and biases arranged one lateral side of) the engaging pin for engaging the screw groove of該螺Ko shaped shaft (23) (25) The provided moving support member (24) is connected to the moving-side transfer cylinder (14), and the screw-like shaft (23) is placed inside the covering pipe (26) that slides with the moving support member (24). , And the covered pipe (26) covers the screw shaft (23) .

The grain in the Glen tank is lifted up in the cereal cylinder ( 10 ) by the cerealing helix ( 9 ) and taken over in the stationary side transfer cylinder ( 12 ) . The grain handed over in the fixed transport cylinder ( 12 ) is transported by the transport spiral ( 11 ) and inherited in the moving transport cylinder ( 14 ) . Furthermore, the inside of the moving side transport cylinder ( 14 ) is transported by a telescopic transport spiral ( 13 ) , and is discharged out of the machine from the discharge port at the tip of the moving side transport cylinder ( 14 ) .

When threaded child-like shaft for telescopic drive (23) forward and reverse driving, the movable conveyor tube (14) slides in the longitudinal direction with respect to the fixed side conveyance cylinder (12), the fixed-side transporting cylinder ( 12 ) and the grain discharging apparatus constituted by the moving side transfer cylinder ( 14 ) expands and contracts.

At this time, screw child-like shaft for telescopic drive (23), in order to avoid the top of the fixed-side transfer cylinder (12) are arranged to be biased to one of left and right side portions of the fixed-side transfer cylinder (12) , as compared with the conventional placing the screw child-like shaft for the telescopic drive just above the top of the fixed-side transporting cylinder, which the overall height of the combine is lowered equipped, barn, easy storage in such warehouses It becomes.
Further, the screw-like shaft (23) is covered with the covering pipe (26) that slides together with the moving support member (24), and the screw-like shape is caused by the flow of grease applied to the screw-like shaft (23) and the load at the time of expansion / contraction. The deflection of the shaft (23) is prevented.

The claim 2 inventions described, the guide member for receiving a coated pipe (26) comprises a (27), 請 Motomeko that the contact portion of the covering pipe (26) in said guide body (27) composed of a resin The combine grain discharging apparatus according to 1.

The contact portion of the guide body (27) with the coated pipe (26) is made of resin, and the coated pipe (26) is prevented from being damaged by friction when the coated pipe (26) slides.

The invention according to claim 3 is characterized in that the engagement pin (25) is rotatably attached to the moving support member (24), and the collar (25a) engaged with the screw groove of the screw shaft (23) is provided. The combine grain discharging apparatus according to claim 1 or 2, wherein the combine pin (25) is rotatably fitted to the tip of the engaging pin (25).
The engagement pin (25) rotates with respect to the moving support member (24), and the collar (25a) engaged with the screw groove of the screw shaft (23) rotates with respect to the engagement pin (25). Thus, the resistance during the expansion and contraction movement of the moving side transport cylinder (14) is reduced.

請 Motomeko 1 by the inventions described lever, screw child-like shaft for telescopic drive (23), one lateral side of the fixed side conveyance tube to avoid the top of the fixed-side transfer cylinder (12) (12) by placing biases the parts, as compared with the conventional placing the screw child-like shaft for the telescopic drive just above the top of the fixed-side transporting cylinder, can be lowered equipped with a total height of the combine this, It can be easily stored in a barn or warehouse.
Then, the screw-like shaft (23) is covered with the covering pipe (26) that slides together with the moving support member (24), so that the screw applied to the screw-like shaft (23) is caused by the outflow of the grease and the load during expansion and contraction. The bending of the shaft (23) can be prevented.

請 Motomeko 2 invention by the lever according to the terms of the effect of the invention according to the first aspect, the contact portion of the covering pipe (26) in the guide body (27) than was made of resin, coated It is possible to prevent the coated pipe (26) from being damaged by friction when the pipe (26) slides .
According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or claim 2, it is possible to reduce the resistance during the expansion and contraction movement of the moving side transport cylinder (14).

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, the structure of the combine shown in FIG. 1 will be described.
On the vehicle body 2 having the traveling crawler 1, a reaping device 3 having a front and rear reaping portion 3 and a rear side having a feed chain 4 is mounted. A driving unit 6 is installed on the lateral side of the mowing unit 3 and a Glen tank 7 is installed behind it.

A grain discharging apparatus for carrying out the grain stored in the Glen tank 7 to the outside of the combine will be described.
A front / rear transport spiral 8 for transporting grains in the front-rear direction in the horizontal direction is provided at the bottom of the grain tank 7, and a cereal spiral 9 for lifting and transporting grains in the vertical direction is provided continuously to the front / rear transport spiral 8 And the fixed side conveyance cylinder 12 which comprised the conveying helix | cylinder 11 which is connected to the upper part of this pulverization cylinder 10, and conveys a grain in the horizontal direction was made to be rotatable around the vertical axis Y. The movable-side transfer cylinder 14 that can be extended and retracted is fitted to the outer peripheral portion of the fixed-side transfer cylinder 12 and is provided with an extendable transfer helix 13. The fixed conveyance cylinder 12 and the movement conveyance cylinder 14 can be driven up and down around the horizontal axis X, and are configured to move up and down by the expansion and contraction operation of the elevation cylinder 15. A grain discharge port 16 is provided at the tip of the moving-side transport cylinder 14.

  The fixed-side conveying cylinder 12 has a base connected to the upper part of the cerealing cylinder 10 and a distal end extending outwardly. The fixed-side conveying cylinder 12 includes a fixed-length conveying spiral 11 inside the cylinder. The conveyance cylinder 14 is slidably connected by inserting and fitting the base end portion from the distal end side of the fixed-side conveyance cylinder 12. The movable transfer cylinder 14 has a telescopic transfer spiral (transport spiral) 13 that can be expanded and contracted.

The telescopic drive device 21, the drive moves stretch the movable transporting cylinder 14 mode - the (data wiper - - mode) threadedly child-like shaft 23 for telescopic drive provided with a spiral body 23a on the outer circumference by 22 data It is configured to drive forward and reverse. The screw shaft 23 for extending and contracting driving is arranged on the lateral side portions on the left and right sides of the fixed-side transport cylinder 12 so as to be mounted in parallel and covered with a safety cover 30. The moving support metal (moving support member) 24 is provided so as to forcibly move in the axial direction via the engaging pin 25 engaged with the thread groove of the screw child-like shaft 23, the The movable side transfer cylinder 14 is integrally connected to the base side. The engagement pin 25 is freely rotatable with respect to the support metal 24 for movement, and the collar 25a that is externally fitted to the pin 25 is also freely rotatable with respect to the pin 25. It is configured to reduce resistance during movement.

Further, screw child shaped shaft 23 for the telescopic drive has a configuration in which are inserted into the coated pipe 26 so as to cover substantially the entire of the screw-shaped shaft 23. Thus, deflection of the screw child-like shaft 23 by the outflow and stretching during loading of grease coated on threaded child-like shaft 23 can be prevented. The covering pipe 26 is received by the guide body 27 so as to support the expansion / contraction mechanism, and the contact portion of the guide body 27 with the pipe is made of resin, so that the pipe is damaged by friction during expansion / contraction. I try to prevent sticking. Further, the guide body 27 has a configuration in which a notch 27b narrower than the outer diameter of the fitting hole 27a is provided so as not to be detached from the pipe.

  The guide roller 31 is rotatably mounted on a support body 32 attached to the moving side conveyance cylinder 14 side, and is arranged at a position where it does not overlap with the screw shaft 23 for extending and contracting driving. The outer peripheral portion of the guide roller 31 is provided in contact with the outer peripheral portion of the fixed-side conveying cylinder 12, and the outer peripheral portion of the guide roller 31 is moved to the outer peripheral portion of the fixed-side conveying cylinder 12 by the expansion and contraction of the moving-side conveying cylinder 14. It moves so as to roll while touching. In the telescopic drive device 21, limit switches are provided on the shortest side and the longest extension side of the moving side transport cylinder 14 respectively, and when the support metal 24 for movement reaches the shortest side limit switch or the maximum extension side limit switch. The switch pressing piece provided on the moving support metal 24 is switched off to automatically stop the telescopic drive motor 22.

  The drive motor 22 is driven in the forward or reverse direction based on the ON operation of the expansion switch provided on the operation panel near the operation unit 6 and rotates the screw shaft 23 for expansion / contraction driving. If the screw-like shaft 23 rotates in the forward direction, the moving-side transport cylinder 14 is moved to the extending side via the engaging pin 25 and the moving support metal 24 that are engaged, and if the screw-shaped shaft 23 is rotated in the reverse direction, it is forcibly reduced. It is configured to move to.

  In this way, the moving-side transfer cylinder 14 is slid along the fixed-side transfer cylinder 12 while being fitted to the fixed-side transfer cylinder 12, and the position of the grain outlet 16 at the tip is set as the base. It is set as the structure which can select arbitrarily the fall position of a grain by keeping away from, or approaching, and adjusting with respect to the side milling cylinder 10 side.

Plastic chain-like cable 3 3, left and right plate 33a formed of plastic, 33b and the upper and lower plates 33c, by the 33d, a configuration in which a box-type shape, whereas bent 180 degrees by the stopper side only configuration It has become. In the box shape of the deformable plastic chain cable 33, a part of the harness 35 of the work lamp 34 provided at the distal end of the moving-side transport cylinder 14 is provided. The harness can be smoothly guided and guided even when the transport cylinder 14 is expanded and contracted. In this example, the plastic chain-like cable 33 configured as described above is disposed so that the bending trajectory is in the lateral direction when viewed from the direction of the transport spiral axis of the transport cylinder. can be widened, threadedly child-like shaft 23 and the moving mechanism for the telescopic drive can fit the whole like compact. Also, to prevent derailment of the plastic chain-like cable by surrounding the plastic chain-like cable 33 in the guide cover 36, it is also eliminated by caught by the screw child-like shaft 23 for telescopic drive.

  The motor cover 37 that covers the drive motor 22 has a configuration in which the upper surface side is greatly extended to one side from the motor body. Therefore, the harness coupler and the like can be stored below the extended cover portion 37a, and the appearance is improved.

  In the Glen tank shown in FIGS. 7 and 8, 40 is an input pulley for driving the front and rear conveying spiral 8 provided at the bottom of the tank 7, 41 is a driving pulley driven by an engine mounted on the fuselage, 42 is a transmission belt, Reference numeral 43 is a tension clutch pulley, 44 is a support arm for the tension clutch pulley 43, 45 is a tension spring, 45b is a return spring, 46 is a tension clutch lever, 47 is an operating cam, and 48 is a tank lock pin. As shown in FIG. 7, when the tension clutch lever 46 is operated, the tension clutch is turned off (the tension clutch pulley 43 is separated from the transmission belt 42 and the driving of the front and rear conveying spiral 8 is stopped). The spring 45 contracts to the shortest state. In this state, the cam 47a provided at the base of the tension clutch lever 46 is retracted and rotated, and the upper end of the tank lock pin 48 is released. The tank lock pin 48 is pushed up by the return spring 48a. The lower end of 48 is detached from the engagement hole h on the upper surface of the frame of the vehicle body 2. Thereby, the Glen tank 7 will be in the state rotated around the longitudinal axis provided in the front side of the said cereal cylinder 10 to the body outer side.

  On the other hand, as shown in FIG. 8, in the state of the tension clutch “ON” (the tension clutch pulley 43 is pressed against the transmission belt 42 to engage the clutch and the front / rear transport spiral 8 is rotationally driven), the tension spring 45 extends more than that. It becomes a state to do. In this state, the cam 47a provided at the base of the tension clutch lever 46 moves downward to push down the upper end portion of the tank lock pin 48, and the tank lock pin 48 moves down against the return spring 48a. The lower end portion of 48 is fitted into the engagement hole h on the upper surface of the body frame. As a result, the Glen tank 7 is fixed to the frame of the vehicle body 2 so as not to rotate.

  In the conventional configuration, since the tension clutch lever and the tension clutch pulley support arm are integrated, it is necessary to pull the tension spring further from the tension clutch “ON” state to bring the tension clutch “OFF” state. The operation power of was necessary. In this example, as described above, the tension clutch lever and tension clutch pulley support arm are configured separately, so there is no need to pull the tension spring beyond the tension clutch "ON" state, and operation is possible with a small force. It becomes.

Combine side view Side view of the main part of the grain discharging device Top view of the main part BB sectional view of FIG. AA sectional view of FIG. Side sectional view of the main part of the transport cylinder expansion / contraction drive device Front view of main part of Glentank Front view of the main part

9 Graining spiral 10 Graining cylinder 11 Conveying spiral 12 Fixed side conveying cylinder 13 Conveying spiral 14 Moving side conveying cylinder 23 Threaded shaft
24 moving support metal (moving support member)
25 engaging pin
25a color
26 coated pipe
27 Guide body 31 Guide roller

Claims (3)

A cereal cylinder (10) with an interior of the cereal helix (9), a fixed side transfer cylinder (12) that communicates with the top of the cereal cylinder (10) and has an interior of the transfer helix (11), and the fixed side A moving-side transfer cylinder (14) that slides in the axial direction with respect to the transfer cylinder (12) and includes a retractable transfer spiral (13), and the moving-side transfer cylinder (14) is connected to a fixed-side transfer cylinder (14). 12) a telescopic drive screw shaft (23) that is slidable with respect to 12), and a guide roller (31) that slides and guides the movable transport cylinder (14) with respect to the fixed transport cylinder (12). in grain discharge device for a combine having, arranged said screw child-like shaft (23), and to avoid the top of the fixed-side transfer cylinder (12) is biased to one of left and right side portions of the fixed-side transfer cylinder (12) and,該螺Ko shaped axis moving support member having an engagement pin that engages the thread groove (23) (25) (24) The screw-shaped shaft (23) is inserted into a covered pipe (26) that is connected to the moving-side transfer cylinder (14) and slides together with the moving support member (24), and the covered pipe (26) A combine grain discharging apparatus characterized by covering the screw shaft (23) . Said guide member for receiving a coated pipe (26) comprises a (27), said guide body (27) in the coating pipe (26) and combine grain discharge device for the 請 Motomeko 1 wherein constituted by a resin the contact portion of the . The engagement pin (25) is rotatably attached to the moving support member (24), and a collar (25a) that engages with a screw groove of the screw-like shaft (23) is provided on the engagement pin (25). The combine grain discharging apparatus according to claim 1 or 2, wherein the tip part is rotatably fitted on the tip.

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