JP7166123B2 - combine - Google Patents

Description

The present invention comprises a threshing device for threshing a harvested product harvested by a harvesting unit, a grain tank provided side by side with the threshing device and storing grains obtained by the threshing device, and the grain The present invention relates to a combine harvester provided with a grain discharging device for discharging grains stored in a tank to the outside of the machine.

In the combine harvester described above, as shown in Patent Document 1, for example, as a grain discharge device, it is arranged at the rear end of the traveling machine body and connected to the rear lower part of the grain tank, and is arranged upward along the vertical direction. and a horizontal conveying portion which is connected to the upper end of the vertical conveying portion so as to be capable of swinging up and down, and which has a discharge port at its tip. The combine disclosed in Patent Document 1 includes a vertical screw conveyor as a vertical conveying section and a horizontal screw conveyor as a horizontal conveying section.

JP 2016-49092 A

The above-described combine harvester is provided with an elevation drive mechanism for raising and lowering the horizontal conveying section, and the elevation drive mechanism and the drive source are connected by a linear connection member. The connecting member will be damaged if it touches or gets caught on a member placed on the

The present invention provides a combine harvester in which a vertical conveying part is arranged at the rear end of a traveling machine body, but in which a connecting member can be protected from damage by a simple countermeasure.

The combine according to the invention is
a threshing device for threshing the crops harvested by the harvesting unit;
A grain tank that is provided side by side with the threshing device and stores grains obtained by the threshing device;
A vertical conveying unit arranged at the rear end of the traveling machine body and connected to the rear lower part of the grain tank and extending upward along the vertical direction; It has a horizontal conveying part which is movably connected and has a discharge port provided at the tip part on the downstream side in the grain discharge direction, and discharges the grains stored in the grain tank to the outside of the machine. a grain ejector;
a vertical frame provided between the vertical conveying unit and the threshing device so as to be arranged side by side with the vertical conveying unit and extending in the vertical direction, and supporting the vertical conveying unit;
an elevation driving device provided at a connecting portion between the vertical transport section and the horizontal transport section for lifting and lowering the horizontal transport section;
and a drive source for the lifting drive device,
The vertical transport unit includes a transport cylinder that is turnable around a vertical axis extending in the vertical direction, and a connection case part formed at the upper end of the transport cylinder,
In the connection portion, a base portion located upstream in the grain discharging direction in the horizontal conveying portion is connected to the connection case portion,
The vertical frame is formed shorter than the vertical transport section,
A linear connection member that connects the lifting drive device and the drive source is vertically attached to the vertical frame from the bottom of the vertical frame between the vertical conveying unit and the threshing device in the horizontal direction of the machine body. supported by the vertical frame in a state of extending along the direction;
A flexible loop-shaped support member for locking the connection member is provided in the connection case portion,
The connecting member extends from a portion corresponding to the upper end of the vertical frame to the connection case portion corresponding to the upper portion of the vertical conveying portion while being supported by the supporting member. It extends from a portion corresponding to the upper portion toward the elevation driving device and is connected to the elevation driving device.

According to this configuration, since the connecting member extends vertically at the point where it enters the threshing device side of the vertical conveying unit, and the vertical frame serves as a guard member for the connecting member, the connecting member is simply placed along the vertical frame. The connection member can be protected from damage by a simple countermeasure.

In addition, according to this configuration, the connecting member extends vertically in the space between the vertical frame and the threshing device, which is wider than the space between the vertical frame and the vertical conveying section, and on the horizontal side of the vertical frame. , the connection member can be protected by utilizing the vertical frame as a guard for the connection member while facilitating the deployment of the connection member.

In the present invention, an electric device supported by the grain discharge device is provided, and a harness for the electric device is supported by the vertical frame together with the connection member in a state along the connection member. preferred.

According to this configuration, it is possible to protect the harness together with the connecting member while utilizing the connecting member as a guide member for the harness.

In the present invention, the electrical equipment includes an angle sensor supported by the connecting portion and detecting an elevation angle of the horizontal transport section with respect to the vertical transport section, and the harness corresponds to an upper portion of the vertical transport section. It is preferable that the connection member is bundled up to the point where the connection member is connected.

According to this configuration, the harness cannot be supported by the vertical frame between the upper end of the vertical frame and the angle sensor. Wiring is possible.

In the present invention, a second vertical frame is provided at a location behind the vertical transport section so as to be aligned with the vertical transport section in the front-rear direction and extend along the vertical direction, and supports the vertical transport section; a revolving driving device supported by the second vertical frame and revolving the vertical conveying unit around a longitudinal axis; a second linear connecting member connecting the revolving driving device and the drive source; is supported by the vertical frame in a state in which it extends vertically from the lower part of the vertical frame to the vertical intermediate portion of the vertical frame along with the connection member, and is supported by the vertical frame in a plan view from the vertical intermediate portion. is passed between the vertical frame and the second vertical frame and extended laterally outward of the second vertical frame.

According to this configuration, the second connection member extends vertically up to the vertical intermediate portion of the vertical frame at a location that is closer to the threshing device side than the vertical conveying portion, and extends from the vertical intermediate portion of the vertical frame toward the turning drive device. Since it extends while being guarded by the vertical frame and the second vertical frame at certain points, the second connection member can be protected in the same manner as the connection member. Also, the second vertical frame can be utilized as a guard member for the second connection member.

In the present invention, a hydraulic cylinder is provided as the lifting drive device for vertically swinging the horizontal conveying section with respect to the vertical conveying section by expansion and contraction, and is provided at the front portion of the traveling body as the drive source. A valve unit for controlling the hydraulic cylinder is provided, and a hydraulic hose is provided as the connection member, and the hydraulic hose is passed between the threshing device and the grain tank to extend under the vertical frame. It is suitable if it is extended to a lateral side point on the side of the threshing device.

According to this configuration, since the hydraulic hose can be inspected between the threshing device and the grain tank, it is easy to manage the hydraulic hose.

It is a right view which shows the whole combine. It is a top view which shows the whole combine. It is a rear view of a combine. FIG. 4 is a cross-sectional view taken along IV-IV in FIG. 3; It is a perspective view which shows the mounting structure of a hydraulic cylinder, and an angle sensor. It is a side view which shows a hydraulic cylinder and an angle sensor. It is a side view which shows a hydraulic cylinder and an angle sensor.

An embodiment, which is an example of the present invention, will be described below with reference to the drawings.
1 and 2, the direction of arrow B is "the rear of the machine", and the direction of arrow U shown in FIG. The direction of arrow D is defined as "above the body", the direction of arrow L shown in FIG. 2 is defined as "left of the body", and the direction of arrow R is defined as "right of the body".

[Regarding the entire combine harvester]
As shown in FIGS. 1 and 2, the combine has a traveling machine body equipped with a pair of left and right crawler traveling devices 1 . A boarding-type driving unit 2 is formed on the right side portion of the front portion of the traveling machine body. The operating part 2 is provided with a cabin 3 covering a boarding space. A driving section 5 having an engine 4 is formed below the operating section 2 . A harvesting and conveying device 6 is connected to the left side portion of the front portion of the traveling machine body. The harvesting and conveying device 6 includes a harvesting section 7 which is provided in front of the traveling machine body and which cuts and harvests the stalks of crops such as paddy rice, wheat, and rapeseed located in front of the traveling machine body during work traveling, and a harvesting section 7. The front part is connected to the rear part, and a feeder 8 for conveying the reaping culms harvested by the harvesting part 7 is provided. The feeder 8 is connected to the traveling machine body in a state in which it moves up and down with a connecting shaft (not shown) extending in the left-right direction of the traveling machine body as a swing fulcrum. The harvesting unit 7 is moved up and down between a lowered working state and a raised non-working state by swinging and raising the feeder 8 by means of an elongation/contraction operation of a hydraulic elevating cylinder (not shown) connected to the feeder 8 . . A threshing device 10 which receives the harvested culms conveyed by a feeder 8 as a threshing object at the rear part of the traveling machine body, threshing the stalks, and sorting the threshed products after threshing, and the threshing device 10. A grain tank 12 in which grains are supplied by the grain lifting device 11 and stored is provided side by side. The threshing device 10 and the grain tank 12 are arranged side by side in the width direction of the traveling machine body with the grain tank 12 positioned behind the driving unit 2 . A grain tank 12 is equipped with a grain discharging device 13 for discharging grains stored in the grain tank 12 to the outside of the machine.

[Regarding the configuration of the grain discharging device]
As shown in FIGS. 1 and 2, the grain discharging device 13 includes a vertical conveying portion 15 arranged at the rear end portion of the traveling machine body so as to extend in the vertical direction of the traveling machine body, and an upper end portion of the vertical conveying portion 15. and an extended lateral transport portion 16 . A discharge port 16 b is provided at the distal end of the horizontal conveying section 16 . The vertical conveying section 15 and the horizontal conveying section 16 are configured by screw conveyors.

As shown in FIG. 1, the vertical conveying section 15 is connected to the lower rear portion of the grain tank 12 via a connection case 18 connected to the lower portion of the vertical conveying portion 15 and the lower rear portion of the grain tank 12, It extends upward from the connection case 18 along the vertical direction of the traveling body.

The screw 15 a of the vertical conveying section 15 and the bottom screw 14 provided in the bottom of the grain tank 12 are interlocked and connected inside the connection case 18 . The bottom screw 14 is interlocked with a drive mechanism (not shown) inside a drive case 17 provided at the front lower portion of the grain tank 12 . A discharge clutch 17b is provided in a transmission system for transmitting the power of the engine 4 to an input pulley 17a provided on the right lateral side of the drive case 17. As shown in FIG. The discharge clutch 17b is composed of a belt tension clutch. The discharge clutch 17b is not limited to a belt tension clutch, and may be a bite clutch, a friction clutch, or the like. When the exhaust clutch 17b is switched to the engaged state, the power of the engine 4 is transmitted from the drive case 17 to the bottom screw 14 to drive the bottom screw 14, and the screw 15a of the vertical conveying section 15 is driven by the power of the bottom screw 14. be done. By switching the discharge clutch 17b to the disengaged state, power transmission to the bottom screw 14 is cut off, the bottom screw 14 is stopped, and the screw 15a of the vertical conveying section 15 is stopped.

The vertical conveying unit 15 includes a vertical frame 19 provided between the vertical conveying unit 15 and the threshing device 10, and a second vertical frame 20 provided behind the vertical conveying unit 15. Screws It is rotatably supported with the axis P as the center of rotation.

Specifically, the transport cylinder 15b of the vertical transport unit 15 is rotatably connected to the connection case 18 with the screw axis P as the rotation center. The vertical frame 19 extends along the vertical direction of the traveling machine body at a location between the vertical conveying section 15 and the threshing device 10, and is positioned side by side with the vertical conveying section 15. is set up in The vertical frame 19 is formed shorter than the vertical transport section 15 . The second vertical frame 20 is erected on the machine body frame 20 at a position behind the vertical transport section 15 so as to extend along the vertical direction of the traveling machine body and to be positioned in front and behind the vertical transport section 15 . It is A holding member 22 is provided across the upper portion of the vertical frame 19 and the upper portion of the second vertical frame 20 to rotatably hold the conveying tube 15b of the vertical conveying section 15 .

A turning motor 23 is supported as a turning driving device on a motor support portion 20a (see FIG. 3) formed in the upper and lower intermediate portions of the second vertical frame 20. As shown in FIG. The vertical conveying unit 15 is turned by a turning motor 23 around a screw axis P as a vertical axis. Specifically, the conveying tube 15 b of the vertical conveying section 15 is turned by the turning motor 23 , and the vertical conveying section 15 is turned by the turning motor 23 . In this embodiment, the turning motor 23 is configured by an electric motor.

The horizontal conveying portion 16 extends from a connection case portion 15c formed at the upper end portion of the vertical conveying portion 15, and has a screw 16a. The horizontal conveying portion 16 is supported by the connection case portion 15c so as to be vertically swingable. The horizontal transport section 16 is rotated together with the vertical transport section 15 when the vertical transport section 15 is rotated. That is, the horizontal conveying unit 16 is turned by the turning motor 23 with the screw axis P serving as the vertical axis as the turning center. A hydraulic cylinder 24 as an elevation drive device is connected to the upper end portion of the vertical transfer portion 15 and the base portion of the horizontal transfer portion 16 . The horizontal conveying section 16 is moved up and down with respect to the vertical conveying section 15 by the extension and contraction operation of the hydraulic cylinder 24 .

The attachment of the hydraulic cylinder 24 to the vertical transfer section 15 and the horizontal transfer section 16 is performed based on the mounting structure shown in FIGS. That is, a pair of cylinder brackets 25 are provided on the connection case portion 15 c of the vertical transport portion 15 . A boss portion 24a formed at one end of the hydraulic cylinder 24 is inserted between the pair of cylinder brackets 25 and connected to the pair of cylinder brackets 25 by a connecting shaft 26 so as to be relatively rotatable. A cylinder support portion 27 having a boss portion 27a is formed on the lateral side portion of the lateral conveying portion 16 . The other end of the hydraulic cylinder 24 is supported by a boss 27a via a connecting shaft 28 so as to be relatively rotatable.

In the grain discharging device 13 , the lateral conveying section 16 is turned by the turning motor 23 so that the attitude is changed between the storage attitude and the working attitude.

When the grain discharging device 13 is changed to the retracted posture, the horizontal conveying section 16 is housed inside the machine body and supported by the support member 29 as shown in FIG. When the horizontal conveying portion 16 is in the home state, the horizontal conveying portion 16 extends obliquely forward to the left from the vertical conveying portion 15 so that the discharge port 16b is positioned on the left lateral side of the driving portion 2, and the horizontal conveying portion 16 is received from above in a concave portion 29a of an upward opening formed in the upper end portion of the support member 29, and the horizontal conveying portion 16 is locked by the concave portion 29a so as not to shift laterally. The support member 29 is erected upward from the front upper portion of the threshing device 10 . When the attitude of the grain discharging device 13 is changed to the working attitude, the horizontal conveying part 16 turns from the home state and protrudes to the outside of the machine body so that the discharging port 16b is positioned outside the machine.

In the grain discharging device 13, the discharge clutch 17b is switched to the engaged state so that the discharge work is performed. That is, when the discharging clutch 17b is switched to the engaged state, the vertical conveying section 15 and the horizontal conveying section 16 are driven by the power of the bottom screw 14, and the grain tank 12 is discharged into the connection case 18 by the bottom screw 14. The grains are conveyed by the vertical conveying section 15 and the horizontal conveying section 16 and discharged from the discharge port 16b.

In the grain discharging device 13, the discharge clutch 17b is switched to the disengaged state, the bottom screw 14 is stopped, the vertical conveying portion 15 and the horizontal conveying portion 16 are stopped, and the grains from the grain tank 12 are stopped. Ejection is stopped.

A valve unit 30 as a drive source for the hydraulic cylinder 24 is provided in the front part of the traveling body, as shown in FIGS. Specifically, the valve unit 30 is provided in the lower part of the driving unit 2 in the front part of the traveling machine body. The valve unit 30 supplies pressure oil to the hydraulic cylinder 24 and discharges pressure oil from the hydraulic cylinder 24 to control the expansion and contraction of the hydraulic cylinder 24 . The hydraulic cylinder 24 and the valve unit 30 are connected by a hydraulic hose 31 as a linear connecting member. Hydraulic hoses 31 are arranged as shown in FIGS.

That is, as shown in FIG. 1, the hydraulic hose 31 extends from the valve unit 30 to the left lateral portion of the rear portion of the operating portion 2, and extends from the left lateral portion to the lateral outer portion of the operating portion 2. , from the laterally outer portion of the operating section 2 to the threshing device 10 and the grain tank 12 in the longitudinal direction of the machine body, and extends to the lateral side portion of the threshing device side with respect to the lower portion of the vertical frame 19. being thrown away. As shown in FIG. 3 , the hydraulic hose 31 extends vertically along the vertical frame 19 from the bottom to a point corresponding to the upper end of the vertical frame 19 . The hydraulic hose 31 extends upward from a portion corresponding to the upper end of the vertical frame 19 toward the side where the vertical conveying portion 15 is located to a portion corresponding to the upper portion of the vertical conveying portion 15 . is curved toward the hydraulic cylinder 24 and connected to the hydraulic cylinder 24 . As shown in FIG. 4 , the hydraulic hose 31 passes through the horizontal side of the vertical frame 19 on the side of the threshing device at the portion extending vertically along the vertical frame 19 . The hydraulic hose 31 is supported at a plurality of positions in the vertical direction of the vertical frame 19 at portions extending in the vertical direction along the vertical frame 19 . As shown in FIG. 4, the hydraulic hose 31 is supported by the vertical frame 19 via support arms 32 extending from the vertical frame 19 and lashing bands 32a. As shown in FIG. 3, the hydraulic hose 31 is engaged with a loop portion 33a of a support member 33 extending from the vertical transport portion 15 at a portion corresponding to the upper portion of the vertical transport portion 15, thereby supporting the support member 33. It is supported by the vertical conveying section 15 via.

As shown in FIG. 6 , an angle sensor 34 as an electric device is supported at a connection point between the vertical conveying section 15 and the horizontal conveying section 16 of the grain discharging device 13 . The angle sensor 34 detects the elevation angle of the horizontal conveying unit 16 with respect to the vertical conveying unit 15 as the height position of the front end side portion of the horizontal conveying unit 16 with respect to the traveling machine body.

Specifically, the angle sensor 34 is configured by a rotary potentiometer. As shown in FIGS. 5 and 6, the angle sensor 34 is supported by the sensor support portion 25a formed on the cylinder bracket 25. As shown in FIGS. A detection arm 35 is provided on the operating shaft 34a of the angle sensor 34 so as not to be relatively rotatable. A sensing portion 35a is provided at the tip of the detection arm 35 so as to project sideways. An operation arm 36 extends from the boss portion 24a of the hydraulic cylinder 24 toward the sensing portion 35a. When the horizontal conveying portion 16 is moved up and down, the hydraulic cylinder 24 swings with respect to the cylinder bracket 25 as the horizontal conveying portion 16 rises and lowers, and the operation arm 36 uses the connecting shaft 26 as a swing fulcrum by the hydraulic cylinder 24. operated by swinging. The front end portion of the operating arm 36 swings while contacting the sensing portion 35a, the detecting arm 35 is swung by the operating arm 36, the operating shaft 34a is rotated, and the angle sensor 34 moves the horizontal conveying portion 16 up and down. Detect angles.

The angle sensor 34 and a control device (not shown) that controls the hydraulic cylinder 24 based on the detection result of the angle sensor 34 are connected by a harness 37 (hereinafter referred to as angle sensor harness 37). The angle sensor harness 37 is wired as shown in FIGS.

That is, as shown in FIG. 3, the angle sensor harness 37 extends along the hydraulic hose 31 from the lower portion of the vertical frame 19 to a location corresponding to the upper portion of the vertical transport portion 15, , and is connected to the angle sensor 34 through the lower portion of the connection case portion 15c of the vertical transport portion 15 from a portion corresponding to . The angle sensor harness 37 is bundled together with the hydraulic hose 31 and supported by the vertical frame 19 at a portion corresponding to the upper portion from the lower portion of the vertical frame 19, as shown in FIGS. The angle sensor harness 37 is bundled with the hydraulic hose 31 and supported by the hydraulic hose 31 between the upper portion of the vertical frame 19 and the angle sensor 34 .

As shown in FIG. 2, a work light 38 for illuminating the discharge destination of grains is supported at the tip of the horizontal conveying section 16 of the grain discharging device 13 . A harness 39 (hereinafter referred to as a work light harness 39) that is connected to the work light 38 and supplies power to the work light 38 is wired as shown in FIGS.

As shown in FIGS. 2 and 3, the work light harness 39 extends along the hydraulic hose 31 from the lower portion of the vertical frame 19 to a portion corresponding to the upper portion of the vertical transfer portion 15, similarly to the angle sensor harness 37. It is extended linearly along the upper portion of the horizontal conveying portion 16 from a portion corresponding to the upper portion of the vertical conveying portion 15 to the tip portion of the horizontal conveying portion 16 and connected to the work light 38 . The work light harness 39 is bundled together with the hydraulic hose 31 and supported by the vertical frame 19 at a portion corresponding to the upper portion from the lower portion of the vertical frame 19 , similarly to the angle sensor harness 37 . The work light harness 39 is bundled with the angle sensor harness 37 and the hydraulic hose 31 and supported by the hydraulic hose 31 between the upper portion of the vertical frame 19 and the work light 38 .

As shown in FIG. 2, the battery 40 as a drive source for the swing motor 23 is provided in the front portion of the traveling machine body below the floor of the driving section. The turning motor 23 and the battery 40 are connected by a harness 41 (hereinafter referred to as a motor harness 41) as a second linear connecting member. The motor harness 41 is arranged as shown in FIGS.

As shown in FIG. 3 , the motor harness 41 extends vertically along the vertical frame 19 together with the hydraulic hose 31 from the lower portion of the vertical frame 19 to the upper and lower intermediate portions of the vertical frame 19 . As shown in FIGS. 3 and 4, the motor harness 41 is passed between the vertical frame 19 and the second vertical frame 20 from the upper and lower intermediate portions of the vertical frame 19 in a plan view, and is horizontally connected to the second vertical frame 20 . It extends outward and is connected to the turning motor 23 through the lateral outer side of the second vertical frame 20 . The motor harness 41 extends laterally outward of the second vertical frame 20 from the upper and lower intermediate portions of the vertical frame 19 , and is closer to the vertical conveying unit side than the second vertical frame 20 (the second vertical frame 20 ). front part) is passed through. The motor harness 41 is bundled with the hydraulic hose 31 and supported by the vertical frame 19 at a portion extending from the lower portion of the vertical frame 19 to the upper and lower intermediate portions of the vertical frame 19 .

A turning angle sensor 42 is provided below the turning motor 23 . The turning angle sensor 42 is supported by the motor support portion 20 a of the second vertical frame 20 . The turning angle sensor 42 detects the turning angle of the vertical conveying unit 15 as the turning position of the entire grain discharging device 13 . In this embodiment, the turning angle sensor 42 is composed of a rotary potentiometer.

The turning angle sensor 42 and a control device (not shown) that controls the turning motor 23 based on the detection result of the turning angle sensor 42 are connected by a harness 43 (hereinafter referred to as turning angle harness 43). there is The turning angle harness 43 is wired as shown in FIGS.

As shown in FIGS. 3 and 4, the turning angle harness 43 extends vertically along the vertical frame 19 from the lower portion of the vertical frame 19 to the vertical intermediate portion of the vertical frame 19 in the same manner as the motor harness 41 . and extends laterally outward of the second vertical frame 20 from the upper and lower intermediate portions of the vertical frame 19 to pass between the vertical frame 19 and the second vertical frame 20 in a plan view. It is connected to the turning angle sensor 42 through the lateral outer side of 20 . The turning angle harness 43 is bundled together with the hydraulic hose 31 and supported by the vertical frame 19 at a portion along the vertical frame 19 from the lower portion of the vertical frame 19 to the upper and lower intermediate portions of the vertical frame 19 . The turning angle harness 43 extends laterally outward of the second vertical frame 20 from the upper and lower intermediate portions of the vertical frame 19, and is closer to the vertical transport section side than the second vertical frame 20 (the second vertical frame 20 point on the front side of the ). The turning angle harness 43 is bundled together with the motor harness 41 at a portion extending laterally outward of the second vertical frame 20 from the upper and lower intermediate portions of the vertical frame 19 . The turning angle harness 43 and the motor harness 41 are collectively covered by one covering member 46 between the lower portion of the vertical frame 19 and the laterally outer portion of the second vertical frame 20 .

A warning buzzer 44 is supported in the vertical middle portion of the vertical frame 19 . The warning buzzer 44 warns that the fuselage is going backward, or that troubles such as clogging of various devices with grain culms or straw waste have occurred. A right direction indicator lamp 45 is supported on the upper portion of the second vertical frame 20 . A left directional indicator lamp 45 is supported on the upper rear portion of the threshing device 10 .

An alarm harness 47 connected to the alarm buzzer 44 is wired from the lower portion of the vertical frame 19 to the upper and lower intermediate portions of the vertical frame 19 in the same manner as the turning angle harness 43, bundled together with the hydraulic hose 31 and supported by the vertical frame 19. there is A directional harness 48 connected to the right directional indicator lamp 45 is wired from the lower portion of the vertical frame 19 to the laterally outward side of the second vertical frame 20 in the same manner as the turning angle harness 43 . , hydraulic hoses 31 and supported by the vertical frame 19 .

[Another embodiment]
(1) In the above-described embodiment, the hydraulic hose 31 passes through the horizontal side of the vertical frame 19 on the side of the threshing device. A configuration passing through the rear side or the front side of the frame 19 may be adopted.

(2) In the above-described embodiment, an example in which the hydraulic cylinder 24 is employed as the elevation drive device is shown, but the present invention is not limited to this, and an electric actuator such as a hydraulic motor, an electric motor, or an electric cylinder may be employed. good. When an electric actuator is employed, the linear connection member connected to the lifting drive device becomes an electrical harness.

(3) In the above-described embodiment, an example in which the swing motor 23, which is an electric motor, is used as the swing drive device is shown, but the present invention is not limited to this, and a hydraulic actuator such as a hydraulic motor or an electric actuator such as an electric cylinder may be used. can be anything. When a hydraulic actuator is employed, the second linear connection member connected to the swing drive device is a hydraulic hose.

(4) In the above-described embodiment, an example in which the grain discharging device 13 is provided with the angle sensor 34 and the work light 38 is shown. can be anything.

(5) In the above-described embodiment, an example in which the cabin 3 is provided has been shown, but the cabin 3 may not be provided.

(6) In the above-described embodiment, the harness is passed along the hydraulic hose 31 (linear connection member), bundled with the hydraulic hose 31, and supported by the vertical frame 19. However, the harness is omitted, Only the hydraulic hose 31 may be supported along the vertical frame 19 .

The present invention can be applied not only to a crawler type travel device but also to a combine having travel wheels. In addition, the present invention can be applied not only to ordinary combine harvesters but also to self-threshing combine harvesters.

7 Harvesting Part 10 Threshing Device 12 Grain Tank 13 Grain Discharging Device 15 Vertical Conveying Section 16 Horizontal Conveying Section 19 Vertical Frame 20 Second Vertical Frame 23 Turn Drive Device (Turn Motor)
24 lift drive device (hydraulic cylinder)
30 drive source (valve unit)
31 connection member (hydraulic hose)
34 electrical equipment (angle sensor)
37 harness (angle sensor harness)
38 Electrical equipment (work lights)
39 harness (work light harness)
40 drive source (battery)
41 second connection member (motor harness)

Claims (5)

a threshing device for threshing the crops harvested by the harvesting unit;
A grain tank that is provided side by side with the threshing device and stores grains obtained by the threshing device;
A vertical conveying unit arranged at the rear end of the traveling machine body and connected to the rear lower part of the grain tank and extending upward along the vertical direction; It has a horizontal conveying part which is movably connected and has a discharge port provided at the tip part on the downstream side in the grain discharge direction, and discharges the grains stored in the grain tank to the outside of the machine. a grain ejector;
a vertical frame provided between the vertical conveying unit and the threshing device so as to be arranged side by side with the vertical conveying unit and extending in the vertical direction, and supporting the vertical conveying unit;
an elevation driving device provided at a connecting portion between the vertical transport section and the horizontal transport section for lifting and lowering the horizontal transport section;
and a drive source for the lifting drive device,
The vertical transport unit includes a transport cylinder that is turnable around a vertical axis extending in the vertical direction, and a connection case part formed at the upper end of the transport cylinder,
In the connection portion, a base portion located upstream in the grain discharging direction in the horizontal conveying portion is connected to the connection case portion,
The vertical frame is formed shorter than the vertical transport section,
A linear connection member that connects the lifting drive device and the drive source is vertically attached to the vertical frame from the bottom of the vertical frame between the vertical conveying unit and the threshing device in the horizontal direction of the machine body. supported by the vertical frame in a state of extending along the direction;
A flexible loop-shaped support member for locking the connection member is provided in the connection case portion,
The connecting member extends from a portion corresponding to the upper end of the vertical frame to the connection case portion corresponding to the upper portion of the vertical conveying portion while being supported by the supporting member. A combine extending from a portion corresponding to an upper portion toward the elevation driving device and connected to the elevation driving device. An electrical device supported by the grain discharge device is provided,
The combine according to claim 1, wherein a harness for the electrical equipment is supported by the vertical frame together with the connecting member in a state of being passed along the connecting member. An angle sensor is provided as the electric device, which is supported by the connecting portion and detects an elevation angle of the horizontal conveying unit with respect to the vertical conveying unit,
The combine according to claim 2, wherein the harness is bundled together with the connecting member up to a portion corresponding to the upper portion of the vertical conveying section. a second vertical frame provided at a location behind the vertical transport unit so as to be aligned with the vertical transport unit in the front-rear direction and extending in the vertical direction, and supporting the vertical transport unit;
a turning drive device that is supported by the second vertical frame and turns the vertical conveying unit around a vertical axis,
A linear second connection member connecting the turning drive device and the drive source extends vertically from a lower portion of the vertical frame along with the vertical frame to a vertical intermediate portion of the vertical frame along with the connection member. and is passed from the upper and lower intermediate portions between the vertical frame and the second vertical frame in a plan view to extend laterally outward of the second vertical frame. 4. A combine as claimed in any one of claims 1 to 3 which is stretched. A hydraulic cylinder is provided as the lifting drive device for vertically swinging the horizontal conveying unit with respect to the vertical conveying unit by expansion and contraction,
As the drive source, a valve unit provided in the front part of the traveling body and controlling the hydraulic cylinder is provided,
A hydraulic hose is provided as the connection member,
5. Any one of claims 1 to 4, wherein said hydraulic hose is passed between said threshing device and said grain tank and extends to a lateral side portion on the side of said threshing device with respect to the lower portion of said vertical frame. or the combine according to paragraph 1.

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