JP2003180146A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely house grains in a container, etc., in a combine harvester. <P>SOLUTION: This combine harvester is designed to make an unloading auger communicate with a grain storage tank for installation connectedly to the grain storage tank for storing the grains, make a throwing cylinder communicate with the tip of the unloading auger for installation connectedly to the tip of the unloading auger and throw the grains stored in the grain storage tank through a throwing passage in the throwing cylinder with the unloading auger. In the combine harvester, an opening and closing body for the throwing passage is installed in the throwing auger. The opening and closing body for the throwing passage closes the throwing passage by elastic urging force of an elastic means. On the other hand, the opening and closing body for the throwing passage is composed so as to open the throwing passage against the elastic urging force of the elastic means by the grain unloading force of the unloading auger. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a combine harvester.

[0002]

2. Description of the Related Art Conventionally, as one form of combine, a discharge auger is continuously connected to a grain storage tank for storing grains, and a discharge cylinder is continuously connected to a tip portion of the discharge auger. There is one in which the grains stored in the grain storage tank are discharged by a discharge auger through a discharge channel in a discharge cylinder.

[0003]

However, in the above-mentioned combine, when the grain discharging operation of the discharge auger is stopped and the discharge auger is lifted or swung,
Grains remaining in the tip of the discharge auger and in the throwing cylinder,
There is a problem that it spills onto a place other than the container that stores the grain.

[0004]

In the present invention, therefore, a discharge auger is connected in communication with a grain storage tank for storing grains, and a discharge cylinder is connected in communication with the tip of the discharge auger. In a combine harvester for discharging the grains stored in the grain storage tank through the discharge passage in the discharge cylinder by the discharge auger, the discharge passage opening / closing body is provided in the discharge cylinder,
The ejection passage opening / closing body closes the ejection passage by the elastic biasing force of the elastic means, while opening the ejection passage against the elastic biasing force of the elastic means by the grain discharging force of the discharging auger. The present invention provides a combine characterized by the above.

The present invention is also characterized by the following configurations.

An excessive ejection detection sensor for detecting excessive ejection of grain is provided at a position on the opening operation side of the ejection passage opening / closing body, and the ejection operation of the ejection auger is performed based on the detection result of the excessive ejection detection sensor. To stop.

The over-discharging sensor is provided with a contact detecting piece which is in contact with the opening / closing member of the discharging flow path which is operated to open and detect.
A stopper body that restricts the opening operation of the ejection passage opening / closing body is provided near the contact detection piece.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.

That is, as a basic structure of the combine according to the present invention, a discharge auger is continuously connected to a grain storage tank for storing grains, and a discharge cylinder is continuously connected to a tip portion of the discharge auger. Then, the grains stored in the grain storage tank are discharged by the discharge auger through the discharge passage in the discharge cylinder.

As a characteristic structure, an ejection passage opening / closing body is provided in the ejection cylinder, and the ejection passage opening / closing body closes the ejection passage by the elastic biasing force of the elastic means. The discharge flow path is opened against the elastic biasing force of the elastic means by the grain discharge force of the discharge auger.

Moreover, an excessive ejection detection sensor for detecting excessive ejection of grain is provided at a position on the opening operation side of the ejection passage opening / closing body, and the discharge auger is detected based on the detection result of the excessive ejection detection sensor. The discharge operation is stopped.

Further, the excess ejection sensor includes a contact detection piece which is operated by detecting by contacting the ejection passage opening / closing body which is opened, and the ejection passage opening / closing body is opened in the vicinity of the contact detection piece. A stopper body that restricts the movement is provided.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall side view of a combine A according to the present invention, FIG. 2 is a plan view of the combine A, and FIG. 3 is a front explanatory view of the combine A. In FIG. A track frame to be installed, 3 is a machine frame installed on the track frame 1, 4 is a threshing section in which a feed chain 5 is stretched on the left side and a handling cylinder 6 and a processing cylinder 7 are built in, 8 is a cutting blade 9 and a grain Mowing unit including culm transfer mechanism 10, etc., 11 is a mowing lifting cylinder for moving the mowing unit 8 up and down via the mowing frame 12, 13 is a straw treating unit that faces the end of the straw chain 14, and 15 is a threshing unit 4. The grain storage tank for loading the grains of the above through the lifting cylinder 16; the discharge auger 17 for discharging the grains in the tank 15 to the outside of the machine; 18 the steering handle 19 and the driver's seat 20
An operating cabin 21 provided with is an engine provided below the operating cabin 18, and is configured to continuously cut and thresh grain culms.

As shown in FIGS. 3 and 4, a vertical auger 22 is provided upright on the rear side of the grain storage tank 15, and an upper end of the vertical auger 22 is provided with a succession case 23 as a rotation support body. While connecting the base end of the discharge auger 17, the middle portion of the discharge auger 17 is mounted on the auger rest 24 on the upper surface of the grain storage tank 15, and the discharge auger 17 is stored substantially horizontally in the diagonal direction on the upper surface of the machine. The electric swing motor 27 that swings the tip side of the discharge auger 17 around the vertical auger 22 as a fulcrum at the grain throwing position of the container 26 of the carrier of the grain transport vehicle 25 or the position of the auger rest 24, and an electromagnetic solenoid. Type turning brake 28 and turning angle detection sensor 29, a hydraulic auger raising / lowering cylinder 30 for raising / lowering the tip side of the discharge auger 17 with the inheritance case 23 as a fulcrum, and a raising / lowering angle detection sensor 31 are provided. of With elevating the distal end side of the discharge auger 17 by the control, the swing motor 27
The tip side of the discharge auger 17 is swung to the left and right by the control of.

Further, as shown in FIGS. 5 to 8, the discharge auger 17 is inserted into a cylindrical discharge auger tube 32, and a bearing body 33 made of an elbow type aluminum die cast pipe is attached to the tip of the discharge auger tube 32. One end side is fixed, the discharge auger shaft 34 of the discharge auger 17 is rotatably supported inside the bearing body 33, and the feed end portion of the discharge auger 17 is inserted into the opening inlet portion 35 of the one end side of the bearing body 33. The discharge blade at the feed end of the discharge auger 17.
Fix 36.

The opening outlet on the other end side of the bearing body 33
A thrower cylinder 38 having a cylindrical shape is swingably mounted in the vertical direction on 37, the inherited auger 39 is inserted into the opening outlet 37 of the bearing body 33, and the blowout blade 40 is provided inside the throwout cylinder 38. , Inherited auger 39
Also, the ejection blade 40 is fixed to the blade shaft 41, one end side of the blade shaft 41 is pivotally supported by the bearing body 33 via the two bearing bearings 42, 43, and the blade shaft 41 between the bearing bearings 42, 43 is fixed. The exhaust auger shaft 34 is connected via bevel gears 44 and 45, and the inherited auger 39 and the ejection blades 40 are connected via the exhaust auger 17 to the engine.
The driving force of 21 is transmitted to drive the grain, and the grain of the grain storage tank 15 discharged by the discharge auger 17 is discharged from the synthetic resin cylindrical discharge port 46 at the tip of the discharge cylinder 38.

Then, as shown in FIG. 7, the bearing body 33 is
Opening inlet with the center point located on the axis of the discharge auger shaft 34
35 and an opening outlet part having a center point arranged on the axis of the blade shaft 41
37 and the opening outlet portion with respect to the inner diameter of the opening inlet portion 35.
The inner diameter of 37 is formed to be large, and the outer diameter of the transfer auger 39 on the feed end side is formed to be larger than the outer diameter on the feed end side.

Further, the posture of the ejecting cylinder 38 is fixed between the ejecting cylinder 38 attached to the tip of the ejecting auger so as to swing up and down and the inheritance case 23 regardless of the lifting operation of the ejecting auger 17. The posture holding interlocking mechanism 50 for holding the above is provided, and the posture holding interlocking mechanism 50 keeps the ground grain discharge angle θ of the throw-out cylinder 38 constant.

That is, the posture maintaining interlocking mechanism 50 is shown in FIG.
As shown in FIG. 7, the actuator support body 51 is engaged in the support body engagement groove 37a formed on the outer peripheral surface of the opening outlet portion 37, and is rotated along the outer peripheral surface of the opening outlet portion 37. It is movable, and a plurality (three in the present embodiment) of a plurality of (three in the present embodiment) is provided between the tip side rod connecting piece 51a protruding on the actuator support body 51 and the base end side rod connecting piece 23a protruding on the inheritance case 23. The connecting rods 52, 53, 54 are connected in series via the connecting pins 55, 56, 57, 58, and the connecting pins 56, 57 as a connecting portion for connecting the connecting rods 52, 53, 54 and the discharge auger Links 59 and 60 are installed between the 17th and 17th.

Here, as shown in FIGS. 1 and 2, the connecting rods 52, 53, 54 are arranged above the axial center position C of the discharge auger 17 in a side view and in a plan view. It is arranged between the axial center position C of the discharge auger and the ejection cylinder 38.

The posture maintaining interlocking mechanism 50 is formed by forming a ring gear engagement groove 37b on the outer peripheral surface of the opening outlet portion 37 so as to be adjacent to the outer side of the support body engagement groove 37a (on the side of the ejection cylinder 38). ,
A ring gear 61 of a split type as an interlocking coupling body is engaged in the ring gear engaging groove 37b, and
61 and the ejection cylinder 38 are connected by a connecting bolt 49.

Further, the above-mentioned actuator support 51 is provided with an electric motor for operating an ejection cylinder as an actuator.
62 is mounted, and the output cylinder operating motor 62 is arranged immediately after the opening outlet 37 and laterally of the tip of the discharge auger 17, and the output of the output cylinder operating motor 62 is installed. An output gear 64 attached to the shaft 63 is meshed with the ring gear 61.

Here, the actuator support 51 and the ring gear 61 are rotatably attached around the swing center of the throw-out cylinder 38 (the center of the blade shaft 41 and the center of the opening outlet 37).

In this way, regardless of the raising / lowering operation of the discharge auger 17, the ejecting cylinder 38 is inserted through the posture maintaining interlocking mechanism 50.
Since the grain discharge angle θ to ground can be kept constant, the grain can be discharged to a required position, and the grain discharge work efficiency can be improved.

That is, for example, as shown in FIG. 3, when the grain is discharged to the container 26 of the loading platform of the grain transport vehicle 25, the throw-out cylinder 38 is first placed close to the bottom of the container 26. Then, by discharging the grain in the same state, the grain is prevented from scattering outward, and the discharge auger 17 is raised according to the load amount of the grain in the container 26 over time. Let

At this time, as shown in FIG. 5, the discharge auger
The connecting rods 52, 53, 54, which form a part of the posture maintaining interlocking mechanism 50 in conjunction with the upward movement of the 17, are slid toward the tip end side via the links 59, 60, and the actuator support body 51 is illustrated. In the side view shown in FIG. 5, the ring gear 61, which is integrally and interlockingly connected to the actuator support body 51 through the ejection cylinder operating motor 62, is also rotated counterclockwise while being rotated counterclockwise. , The ring 38 is integrally linked to the ejection cylinder 38 is also operated counterclockwise to swing, to keep the discharge angle 38 of the ejection barrel 38 to the ground to a constant angle, the required position Since the grains can be discharged, the grains can be efficiently and evenly loaded. As a result, the grain discharging operation can be efficiently performed.

When the discharge auger 17 is moved down, each component of the posture maintaining interlocking mechanism 50 operates in the opposite manner to the above, and the ground grain discharge angle θ of the discharge cylinder 38 is kept constant. To hold.

Further, the ejection cylinder 38 is a motor 62 for operating the ejection cylinder.
By operating the output shaft 63, the output gear 64, the ring gear 61, and the ejecting cylinder 38, the ejecting cylinder 38 can be vertically swung, and the ground grain discharge angle θ of the ejecting cylinder 38 is arbitrarily set. Therefore, the grain can be surely thrown out in the required direction through the throw-out cylinder 38.

When the work of throwing out the grains is not carried out, the throwing-out cylinder 38 is discharged by the discharging cylinder operating motor 62.
By rotating to the storage position along the side of 17, it is possible to make the aircraft compact and
It is possible to prevent the throw-out cylinder 38 from being damaged by colliding with another object while the machine body is moving.

As described above, in this embodiment, the posture holding interlocking mechanism 50 ensures a constant function of keeping the discharge angle 38 of the discharge cylinder 38 from the ground, and the discharge cylinder operating motor 62 discharges the discharge cylinder. It is possible to adjust the throwing direction of 38 and store it.

Therefore, generally, a posture maintaining interlocking mechanism
50-based ejection cylinder regardless of the lifting / lowering operation of the discharge auger 17
If the ground grain discharge angle θ of 38 is kept constant, the throwing work can be performed efficiently as described above, but depending on the situation at the time of throwing work, the throwing direction of the throwing cylinder 38 may be changed. There may be a need for adjustment. In such cases,
By operating the ejecting cylinder operating motor 62, the ejecting direction of the ejecting barrel 38 can be appropriately adjusted via the ring gear 61, and the ejection work efficiency can be ensured excellently.

Further, when the ejecting cylinder 38 is arranged at the storage position, the ejecting cylinder operating motor 62 causes the ejecting auger 17 and the ejecting cylinder 38 to operate.
Thus, the left and right sides are protected, and the front is protected by the opening outlet portion 37, so that the ejection cylinder operating motor 62 can be protected.

As shown in FIGS. 6 to 8, the ejection barrel 38 is provided with the ejection vane 40 in the proximal end side ejection cylinder forming body 65 communicating with the opening outlet portion 37, and the tip end thereof. Part side ejection cylinder forming body 66
Is formed in the shape of a gutter with an opening on the upper surface,
The ejection channel 67 is formed in the 66, and the ejection tube forming body 66 is formed on the tip end side.
An opening / closing body support shaft 66b having an axis lined in the left-right direction is laterally installed between the left and right side walls 66a, 66a of the ejection passage opening / closing body 68 and
The upper end of the ejection flow path 67 can be opened and closed from above by the ejection flow path opening / closing body 68 while pivotally supporting the base end portion thereof.

The outlet flow passage opening / closing body 68 is an opening / closing body support shaft.
The tip portion 68a is brought into contact with the bottom portion 66c of the tip end side ejection cylinder forming body 66 by the elastic biasing force of the torque spring 69 as an elastic means attached to the 66b to close the ejection flow path 67 while the ejection auger 17 is provided. Of the grain, and further, the grain ejection force of the ejection blade 40 resists the elastic biasing force of the torque spring 69 and the ejection flow path.
I am trying to open 67.

Further, an excessive ejection detection sensor 70 such as a limit switch for detecting excessive ejection of grain is provided at a position on the opening operation side of the ejection passage opening / closing body 68, and detection of the excessive ejection detection sensor 70 is performed. The discharge operation of the discharge auger 17 is controlled based on the result.

In addition, the excess ejection sensor 70 is a contact detection piece that is activated by contacting the ejection passage opening / closing body 68 that is opened.
70a is provided, and a flow passage opening / closing body is provided near the contact detection piece 70a.
A stopper body 71 for restricting the opening operation of 68 is provided.

In this way, when the grain discharge operation of the discharge auger 17 is stopped, the discharge passage opening / closing body 68 closes the discharge passage 67 by the elastic biasing force of the torque spring 69. There is.

Therefore, when the discharge auger 17 is raised or lowered or swung, the grains remaining in the tip portion of the discharge auger 17 or in the throw-out cylinder 38 are other than the container 26 or the like for storing the grains. It is possible to solve the problem of spilling on the ground and reliably store the grains in a container or the like.

Further, when the contact detection piece 70a of the excessive ejection detection sensor 70 detects the opening operation of the ejection passage opening / closing body 68, the grain ejection operation of the ejection auger 17 is stopped. , It is possible to prevent the excessive amount of grains from being thrown out, and to perform a stable amount of grains to be thrown out, and as a result, a problem occurs in which grains overflow from the container 26 that stores the grains. Can be prevented.

At this time, since the opening operation of the ejection passage opening / closing body 68 is restricted by the stopper body 71, the contact detection piece 70a is damaged by the opening operation force of the ejection passage opening / closing body 68. Can be prevented.

Further, in this embodiment, as shown in FIG.
It is equipped with a machine-side operation lever 75 for operating the discharge auger 17 to move up and down and to the left and right, and a discharge auger tip-side operation lever 76. A machine operation panel 77 is provided on the left rear side of the driver's seat 20. The machine side operation lever 75 is attached to 77, and the clutch switch 78 for turning on / off the driving force of the discharge auger 17 and the ejecting cylinder operating switch 79 for operating the ejecting cylinder operating motor 62 in the forward and reverse directions are installed. ing.

Then, the operation lever 76 on the tip side of the discharge auger
Is attached to the tip of the discharge auger 17, and is operated by the machine-side operation lever 75 or the discharge auger tip-side operation lever 76.
Thus, the lifting cylinder 30 and the turning motor 27 are operated so that the discharge auger 17 can be moved up and down and turned.

The clutch switch 78 rotates the clutch motor (not shown) in the forward and reverse directions to drive or stop the discharge auger 17. The discharge blade 40 discharges when the rotational load of the discharge blade 40 exceeds a certain level. The auger 17 is automatically stopped, and the drive of the discharge auger 17 is restricted by the rotation angle of the discharge cylinder 38, so that the discharge port 46 at the tip of the discharge cylinder 38 is located below the axis of the discharge auger 17. The discharge auger 17 is controlled so as to be driven during the operation.

Further, the elevating cylinder 30, the turning motor 27 and the ejecting cylinder operating motor 62 are operated by an automatic accommodating switch (not shown) to automatically return the discharge auger 17 and the ejecting cylinder 38 to the retracted position. When the discharge auger 17 returns to the storage position of the main body above the auger rest 24 and the ascending / descending angle detection sensor 31 and the turning angle detection sensor 29 detect a preset limit angle, the ejecting cylinder 38
Is automatically stored in the storage position.

It should be noted that each control in this embodiment is carried out centrally through a control means (not shown).

FIG. 9 shows a supporting structure of a blade shaft 41 as another embodiment. The blade shaft 41 is an outer wall of the ejection cylinder 38.
The tip end portion is passed through 38a, and the tip end portion is supported by the tip end portion of the discharge auger 17 via a blade shaft support body 80 extending in the front-rear direction. The blade shaft 41 is firmly supported in a double-sided state. 81
Is a bearing that pivotally supports the tip end portion of the blade shaft 41, and 82 is a support body mounting bracket.

[0048]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, the discharge auger is continuously connected to the grain storage tank for storing the grain, and the ejection cylinder is continuously connected to the tip end of the discharge auger. In a combine harvester in which the grains stored in the storage tank are discharged by the discharge auger through the discharge passage in the discharge cylinder, the discharge passage opening / closing body is provided in the discharge cylinder, and the discharge flow is the same. The passage opening / closing body closes the ejection passage by the elastic biasing force of the elastic means, and opens the ejection passage against the elastic biasing force of the elastic means by the grain discharging force of the discharging auger. .

In this way, when the grain discharge operation of the discharge auger is stopped, the discharge passage opening / closing body closes the discharge passage by the elastic biasing force of the elastic means.

Therefore, when the discharge auger is raised or lowered or swung, the grains remaining in the tip portion of the discharge auger or in the throw-out cylinder spill to a place other than the container for storing the grains. This problem can be solved, and the grains can be reliably stored in a container or the like.

According to the second aspect of the present invention, an excessive ejection detection sensor for detecting excessive ejection of grain is provided at a position on the opening operation side of the ejection passage opening / closing body, and detection by the excessive ejection detection sensor is performed. Based on the result, the discharge operation of the discharge auger is stopped.

In this way, it is possible to prevent the excessive ejection of the grain and to perform a stable operation of the grain amount, and as a result, the grain overflows from the container or the like that stores the grain. It is possible to prevent the occurrence of such a problem.

According to the third aspect of the present invention, the over-discharging sensor has a contact detecting piece which is operated by contacting the opening / closing body of the discharging flow passage, and discharging in the vicinity of the contact detecting piece. A stopper body for restricting the opening operation of the flow path opening / closing body is provided.

In this way, by restricting the opening operation of the ejection passage opening / closing body by the stopper body, it is possible to prevent the contact detection piece from being damaged by the ejection passage opening / closing body.

[Brief description of drawings]

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

FIG. 2 is a plan view of the combine.

FIG. 3 is a front explanatory view of the combine.

FIG. 4 is a side view of the elevating / revolving unit of the discharge auger.

FIG. 5 is a side view of a discharge auger.

FIG. 6 is a side view of the tip of the discharge auger.

FIG. 7 is a plan view of the tip of the discharge auger.

FIG. 8 is an explanatory cross-sectional side view of the dispensing cylinder.

FIG. 9 is a side view showing a support structure of a blade shaft.

[Explanation of symbols]

A combine 1 track frame 2 traveling crawlers 3 machines 4 Threshing Department 5 Feed chain 6 handle

Claims (3)

[Claims] 1. A grain storage tank for storing grains is provided with a discharge auger in communication with the discharge auger, and an outlet cylinder is provided in communication with a tip end of the discharge auger for storage in the grain storage tank. In a combine in which particles are ejected through the ejection channel in the ejection tube by the ejection auger, an ejection channel opening / closing body is provided in the ejection tube, and the ejection channel opening / closing body is provided with elastic means. The combine flow path is closed by the elastic urging force of the discharge auger, and the discharge flow path is opened against the elastic urging force of the elastic means by the grain discharging force of the discharge auger. 2. An excessive ejection detection sensor for detecting excessive ejection of grains is provided at a position on the opening operation side of the ejection passage opening / closing body, and the ejection auger is detected based on the detection result of the excessive ejection detection sensor. The combine according to claim 1, wherein the discharging operation is stopped. 3. The excess ejection sensor includes a contact detection piece that is activated by contacting an ejection passage opening / closing body that is opened.
The stopper body for restricting the opening operation of the ejection passage opening / closing body is disposed in the vicinity of the contact detection piece.
The listed combine.