JP2013153698A - Grain-conveying apparatus and combine harvester equipped with the grain-conveying apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To bring grain flow to be smooth to give no damage of grains, in a grain-conveying apparatus in which a transversely conveying screw conveyor and a vertically conveying screw conveyor are linked through a shaft supporting part inside of a transferring cylindrical body, by reducing a protrusion of the shaft supporting part toward the inside of the transferring cylindrical body to which the conveyed grains strike much as possible.SOLUTION: A final end part of a transverse shaft (10a) which is the rotary shaft of a transversely conveying screw conveyor (10) and a start end part of a vertical shaft (13a) of a vertically conveying screw conveyor (13) are respectively inserted through a transverse hole (12b) opening at a lateral side end part of a transferring cylindrical body (12) and a vertical hole (12c) opening at an upper side end part to pivotally support a shaft supporting part (12a) formed inside of the transferring cylindrical body (12), and a communication passages (B) leading to the transverse hole (12b) and the vertical hole (12c) are formed at a site on both right and left sides of the shaft supporting part (12a) in the inside of the transferring cylindrical body (12).

Description

  The present invention relates to a grain transport device and a combine equipped with the grain transport device.

  As described in Japanese Patent Application Laid-Open No. 2008-220244, a grain conveying device using a combination of a lateral feed screw conveyor and a longitudinal feed screw conveyor is used in a combine grain tank, and the grains accumulated in the grain tank are moved out of the tank. It is used for the grain conveying device of the discharge auger to discharge.

JP 2008-220244 A

  A hollow take-up cylinder is provided at the takeover part of the transverse feed screw conveyor and the vertical feed screw conveyor, and the shaft end of the transverse feed screw conveyor and the end of the vertical feed screw conveyor are supported on the take-up cylinder. The bevel gear is formed with a shaft support portion that interlocks the lateral feed screw conveyor and the longitudinal feed screw conveyor.

  And this take-up cylinder is integrally formed of cast iron or aluminum casting, but the shaft support part protrudes greatly into the lumen of the take-up cylinder, so that the grain is damaged and the grain is damaged. It is the cause. For this reason, in the grain conveying device described in JP 2008-220244 A, a slippery steel plate liner is provided at the grain abutting portion of the shaft support portion against which the grain abuts.

  In the present invention, in the grain transfer device in which the transverse feed screw conveyor and the longitudinal feed screw conveyor are interlocked with the shaft support portion of the take-up cylinder body lumen, a projecting portion of the shaft support portion to which the transported grain hits can be formed. It is an object of the present invention to provide an inexpensive grain transport device that does not need to be provided with a conventional steel plate liner or the like by reducing the size of the grain flow smoothly.

The problems of the present invention are solved by the following technical means.
According to the first aspect of the present invention, the end of the horizontal axis (10a), which is the rotational axis of the lateral feed screw conveyor (10), and the beginning of the vertical axis (13a), which is the rotational axis of the vertical feed screw conveyor (13). Are inserted through a horizontal hole (12b) opened at the lateral end of the take-up cylinder (12) and a vertical hole (12c) opened at the upper end, and the interior of the take-up cylinder (12). The shaft support portion (12a) formed on the shaft support portion (12a) is connected to the left and right sides of the shaft support portion (12a) inside the take-up cylinder (12) and communicates with the lateral hole (12b) and the vertical hole (12c). It was set as the grain conveying apparatus which formed the channel | path (B).

  The invention according to claim 2 divides the take-up cylinder (5) into left and right by a dividing surface (15a) passing through the axis of the horizontal axis (10a) and the vertical axis (13a). An opening (20) communicating with the communication path (B) is formed on the lateral surface of (5).

  According to a third aspect of the present invention, the transverse feed screw conveyor (10) is disposed at the bottom of the Glen tank (5), and the longitudinal feed screw conveyor (13) is erected on the side of the Glen tank (5). The turning motor (27) for turning the longitudinal feed cylinder (13c) that houses the longitudinal feed screw conveyor (13) and the take-up cylinder (5) are supported on the body frame (1) via the bracket (22). It was set as the combine provided with the grain conveying apparatus of Claim 1 or Claim 2.

  According to a fourth aspect of the present invention, there is provided a turning sensor (25) for detecting the turning angle of the longitudinal feed cylinder (13c) by arranging the turning motor (27) at a site on the rear side of the machine body with respect to the longitudinal feed cylinder (13c). ) Is a combine equipped with the grain conveying device according to claim 3, which is arranged at a site outside the machine body with respect to the vertical feed cylinder (13 c).

  According to the first aspect of the present invention, the lateral hole (12b) opened at the lateral end of the take-up cylinder (12) at the left and right sides of the shaft support (3) inside the take-up cylinder (5). And the communication passage (B) communicating with the vertical hole (12c) opened at the upper end of the take-up cylinder (12) is formed, so that the horizontal hole (7) and the vertical hole (8) are connected to the communication passage (B). The shaft support portion (12a) is connected to a wide passage including the portion, and it is difficult for the grain to be conveyed, so that the grain can be efficiently conveyed while reducing damage to the grain.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, the take-up cylinder (5) can be die-cut at the opening (20) and cast to facilitate manufacture. .
According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the grain conveying device mounted in the grain tank (5) mounted on the combiner to the machine frame (1). The mounting configuration can be simplified.

  According to the invention described in claim 4, in addition to the effect of the invention described in claim 3, the adjustment of the mounting position of the turning sensor (25) for adjusting the turning angle of the vertical feed cylinder (13c) It can be easily performed from the outside of the frame (1).

It is a left view of a combine. It is a rear view of a combine. It is the partially expanded perspective view seen from the right rear of a combine. It is the partially expanded perspective view seen from the left rear of a combine. It is an expanded sectional side view of the take-over cylinder of a combine. It is a left view of the take-up cylinder of a half state. It is a rear view of the take-up cylinder of a half state. It is a right view of the take-up cylinder of a half state. It is a perspective view of the 2nd takeover cylinder of a combine. It is a plane sectional view of the 2nd takeover cylinder. It is a back sectional view of the 2nd succeeding cylinder. It is a side view of an auger shaft. It is a front view of a take-up cylinder.

  An embodiment of the present invention will be described with a combine. 1 is a fuselage frame of the combine, 2 is a traveling device provided below the fuselage frame 1, 3 is a threshing device provided above the fuselage frame 1, and 4 is a threshing device 3. The mowing part 5 is provided on the front side of the threshing device 3, and the reference numeral 6 is a driving seat provided on the front side of the glen tank 5.

  A transverse feed screw conveyor 10 for discharging the grains in the Glen tank 5 is provided at the bottom of the Glen tank 5, and the transverse feed screw conveyor 10 is placed in a take-up cylinder 12 provided on the rear wall 11 of the Glen tank 5. Invade. As will be described in detail later, the take-up cylinder 12 has a horizontal hole 12b and a vertical hole 12c that communicate with each other, and a lower end portion of the vertical feed cylinder 13c of the vertical feed screw conveyor 13 is rotatably attached to the vertical hole 10b. A discharge auger 14 is attached to the upper end of the vertical feed screw conveyor 13 via a second take-up cylinder 15. The vertical feed screw conveyor 13 and the discharge auger 14 are respectively provided with a grain conveying screw, and the grains in the grain tank 5 are discharged to the outside by the horizontal feed screw conveyor 10, the vertical feed screw conveyor 13 and the discharge auger 14. .

  The discharge auger 14 is attached to the second take-up cylinder 15 at the top of the vertical feed screw conveyor 13 so that it can be raised and lowered, and is bent horizontally with respect to the vertical feed screw conveyor 13 when no discharge operation is performed. Store 29 with face up.

  And at the time of discharge work, the discharge auger 14 is horizontally rotated about the center of the longitudinal feed screw conveyor 13 and is raised from the second take-up cylinder 15 so that the leading end discharge portion 29 is positioned on the saddle tank of the truck, Eject work.

3 to 5 show details of the transverse feed screw conveyor 10 and the longitudinal feed screw conveyor 13.
The lateral feed screw conveyor 10 has a configuration in which a horizontal spiral plate 10b is spirally wound around a horizontal shaft 10a, and the end of the horizontal shaft 10a protruding rearward from the rear wall 11 of the Glen tank 5 is located at the side of the take-up cylinder 12. A bearing 16 supports the shaft support 12a through a hole 12b, and a first bevel gear 17 is fixed to the shaft end.

  The vertical feed screw conveyor 13 has a configuration in which a vertical spiral plate 13b is spirally wound around a vertical axis 13a, and is inserted into a vertical feed cylinder 13c provided along the rear wall 11 of the Glen tank 5, and the end of the vertical axis 13a. The part is supported by the shaft support part 12a through the vertical hole 12c of the take-up cylinder 12 with a bearing 18, and the second bevel gear 19 is fixed to the shaft end.

  As shown in FIG. 6 to FIG. 8 and FIG. 13, the take-up cylinder 12 is cast as a halved body with a dividing line passing through the center line of the horizontal axis 10a and the vertical axis 13a, and the halved body is assembled integrally. Although comprised, it is also possible to cast integrally without making a halved body.

  In the inner cavity of the take-up cylinder 12, orthogonal transverse holes 12 b and vertical holes 12 c are connected by a passage A, and a shaft support part 12 a that pivotally supports the take-up cylinder 12 and the vertical axis 13 a is formed at the intersection. . Then, a rectangular cast hole (opening) 20 is formed on the side surface of the take-up cylinder 12 toward the shaft support portion 12a, and the communication passage B extends the passage A between the cast hole 20 and the shaft support portion 12a. Is forming. The communication path B may be made as wide as possible within a range in which the strength of the takeover cylinder 12 can be maintained.

The casting hole 20 is used by being closed with a lid plate 21, but maintenance such as taking out the grains that are appropriately opened and collected in the lumen of the takeover cylinder 12 can be performed.
As shown in FIG. 3, the take-up cylinder 12 is supported by a bracket 22 attached to the body frame 1 and the rear wall 11 of the glen tank 5. The bracket 22 is also equipped with a turning motor 27, and the drive gear of the turning motor 27 is engaged with the turning gear 28 fixed to the lower end of the vertical feeding cylinder 13c so as to turn the vertical feeding cylinder 13c.

  A sensor mounting base 23 is attached to the side surface of the take-up cylinder 12 along the vertical feeding cylinder 13c on the side surface opposite to the turning motor 27 of the vertical feeding cylinder 13c, and the sensor plate 24 attached to the sensor mounting base 23 is attached. The turning sensor 25 senses the contact plate 26 attached to the vertical feed cylinder 13c and detects the turning angle of the vertical feed cylinder 13c. The position of the turning sensor 25 can be adjusted directly from the right outside of the aircraft.

As shown in FIGS. 9 to 11, the second take-up cylinder 15 provided at the upper end of the vertical feed screw conveyor 13 is constructed by assembling two sets of take-up cylinders 12 so that the discharge auger 14 can be raised and lowered.
That is, the two take-up cylinders 12 are connected by a connecting ring 33, a thrust plate 34, and a connecting tool 35, and a connecting screw conveyor 30 that interlocks the vertical feed screw conveyor 13 and the discharge auger 14 is provided therein. The connecting screw conveyor 30 is connected to the connecting shaft 30a and the spiral plate 30b is wound spirally, and the bevel gear 28 fixed to the upper end of the longitudinal axis 13a is engaged with the third bevel gear 31 fixed to one end of the connecting shaft 30a. Further, the fourth bevel gear 32 fixed to the other end of the connecting shaft 30a is engaged with the bevel gear 36 fixed to the auger shaft 14a for transmission. With this configuration, the rotational driving force of the transverse feed screw conveyor 10 is transmitted to the discharge auger 14, and the grains in the grain tank 5 are conveyed to the tip discharge portion 29 of the discharge auger 14.

  The auger cylinder 14c of the discharge auger 14 is supported by the electric cylinder 37 with respect to the vertical feed cylinder 13c of the vertical feed screw conveyor 13, and when the cylinder motor 38 is driven, the auger cylinder 14c is raised and lowered.

  In the discharge auger 14 housed in the discharge auger 14, the auger shaft 14a is expanded and contracted by two driven pins 14d together with the auger cylinder 14c, and the pitch of the auger blade plate 14b wound around the auger shaft 14a in a spiral shape is 40 mm. The discharge auger 14 is expanded and contracted by the expansion / contraction motor 40 shown in FIG.

  FIG. 13 shows the configuration of a zoom Glen tank that changes the capacity of the Glen tank 5. The upper tank 5b covers the lower tank 5a, and the upper tank 5b is supported by the support beam 5c extending diagonally from the telescopic shaft 5d standing at the center of gravity of the upper tank 5b at the center of the lower tank 5a. When the telescopic shaft 5d expands and contracts by driving the telescopic motor 5e provided at the upper end, the upper tank 5b moves up and down to change the tank capacity.

  The sliding portion of the lower tank 5a and the upper tank 5b is provided with a seal material such as a roller or a resin slider and rubber so that the upper tank 5b moves up and down smoothly so that rainwater or the like does not enter the inside.

  For the expansion and contraction of the upper tank 5b, for example, a limit switch for detecting the highest position is provided, and when the threshing clutch is engaged, the upper tank 5b starts to rise until the limit switch detects the highest position.

  In addition, a plurality of cocoon sensors for detecting the upper surface of the grain in the Glen tank 5 are provided with different attachment positions, and the upper tank 5b is raised as the amount of accumulated grains increases, A hull sensor for detecting the upper surface of the grain is provided on the upper part, and every time the hull sensor detects a grain, the upper tank 5b is gradually raised to the upper limit, or when a threshing clutch is put in, it is little by little. The upper tank 5b is raised or the upper tank 5b is raised in proportion to the time during which the cereal sensor installed in the cereal conveying device with the threshing clutch is detected, such as this In a configuration in which the upper tank 5b rises in a stepwise manner, it is possible to avoid the aircraft from becoming unstable.

  In addition, the wrinkle sensor that detects the upper surface of the grain is determined to be the rising limit signal of the upper tank 5b by detecting the grain a predetermined number of times.

B Communication path 1 Machine frame 10 Horizontal feed screw conveyor 10a Horizontal shaft 12 Transfer cylinder 12b Horizontal hole 12c Vertical hole 13 Vertical feed screw conveyor 13a Vertical axis 13c Vertical feed cylinder 15a Dividing surface 20 Cast hole (opening)
22 Bracket 25 Rotation sensor 27 Rotation motor

Claims (4)

  A take-up cylinder is used for each of a terminal portion of the horizontal axis (10a), which is the rotational axis of the lateral feed screw conveyor (10), and a start end portion of the vertical axis (13a), which is the rotational axis of the vertical feed screw conveyor (13). Inserted from the horizontal hole (12b) opened at the lateral end of (12) and the vertical hole (12c) opened at the upper end into the shaft support (12a) formed inside the take-up cylinder (12) A grain which is pivotally supported and has a communicating path (B) communicating with the lateral hole (12b) and the longitudinal hole (12c) at the left and right sides of the pivotal support (12a) inside the take-up cylinder (12). Conveying device.   The take-up cylinder (5) is divided into left and right by a split surface (15a) passing through the axis of the horizontal axis (10a) and the vertical axis (13a), and the take-up cylinder (5) The grain conveying apparatus according to claim 1, wherein an opening (20) communicating with the communication path (B) is formed.   The transverse feed screw conveyor (10) is disposed at the bottom of the Glen tank (5), the longitudinal feed screw conveyor (13) is erected on the side of the Glen tank (5), and the longitudinal feed screw conveyor (13) The swing motor (27) for turning the vertical feed cylinder (13c) that houses the interior and the take-up cylinder (5) are supported on the body frame (1) via the bracket (22). A combine equipped with the grain conveying device described.   The swivel motor (27) is disposed at the rear side of the machine body with respect to the vertical feed cylinder (13c), and the swivel sensor (25) for detecting the swivel angle of the vertical feed cylinder (13c) is provided in the vertical feed cylinder (13c). On the other hand, a combine equipped with the grain conveying apparatus of Claim 3 arrange | positioned in the site | part outside a body.

Images