WO2022137816A1

WO2022137816A1 - Sugarcane harvester

Info

Publication number: WO2022137816A1
Application number: PCT/JP2021/040412
Authority: WO
Inventors: 川田康毅; 岡本秀三; 一二三慶城; 吉田卓哉; 守山千仁; 森脇崇文; 谷和樹
Original assignee: 株式会社クボタ
Priority date: 2020-12-24
Filing date: 2021-11-02
Publication date: 2022-06-30

Abstract

In the sugarcane harvester according to the present invention, a carrier device comprises: a side wall 22; a bearing mechanism 115 that is supported by the side wall 22; and a rotary body 31a that is supported over the bearing mechanism 115 in such a manner as to be capable of spinning about an axis running in the right-left directions. The bearing mechanism 115 comprises: a shaft member 41 which is detachably attached to one of the rotary body 31a and the side wall 22; a holder 115b which is detachably attached to the other of the rotary body 31a and the side wall 22; and bearings 115c which are mounted between the shaft member 41 and the holder 115b. The bearing mechanism 115 is configured to be capable of being detached outward from the side wall 22 through openings 22a, 28c formed in the side wall 22.

Description

Sugar cane harvester

The present invention relates to a sugar cane harvester that harvests sugar cane in a field.

[Background Technique 1]
As the sugarcane harvester, as disclosed in Patent Document 1, there is one provided with a cutting unit and a transport device.
A cutting device is provided in the cutting section, and as the machine progresses, the root of the crop in the field is cut by the cutting device, and the crop is cut by the cutting section. The crops cut by the cutting section are transported toward the rear of the machine by the transport device.

[Background Technique 2]
As the sugarcane harvester, as disclosed in Patent Document 1, a cutting device is provided in the cutting section, and as the machine progresses, the root of the crop in the field is cut by the cutting device, and the crop is cut. Is cut by the cutting section.

In the cutting device, the left and right drive shafts extend downward from the upper drive case, the left and right rotary blades are supported by the lower parts of the left and right drive shafts, and the rotary blades are rotationally driven by the drive shafts. It is configured. As the aircraft progresses, the root of the crop is introduced between the left and right rotary blades and cut.

[Background Technique 3]
As disclosed in Patent Document 1, some sugarcane harvesters are provided with a cutting section having left and right divider devices for separating crops to be harvested and crops to be left in the field.
The divider device is provided with an inner screw and an outer screw that are rotationally driven around an axis along the vertical direction, and the outer screw is arranged laterally and laterally with respect to the inner screw.
In the divider device, the inner screw and the outer screw are rotationally driven to separate the crop to be cut and the crop to be left in the field.

[Background Technique 4]
As a sugarcane harvester, as disclosed in Patent Document 1, there is a machine provided with a cutting unit for cutting crops in a field, a transport device, and an aftertreatment device.

A cutting device is provided in the cutting section, and as the aircraft progresses, the roots of the crops in the field are cut by the cutting device, and the crops are cut. The crops cut by the cutting unit are transported by the transport device, and the crops transported by the transport device are post-processed by the post-treatment device.

Japanese Unexamined Patent Publication No. 2008-5715

[Problem 1]
The technical issues corresponding to the background technique 1 are as follows.
In Patent Document 1, the transport device is provided with rotatable upper and lower rotating bodies around an axis along the left-right direction, and the rotating bodies are arranged at intervals along the transport direction of crops. ..
The upper and lower rotating bodies are rotationally driven in opposite directions, so that the crop is transported while being sandwiched between the upper and lower rotating bodies.

An object of the present invention is to configure a sugar cane harvester so that maintenance work such as replacement of bearings supporting a rotating body of a transport device can be easily performed.

[Problem 2]
The technical issues corresponding to the background technique 2 are as follows.
In order to harvest crops efficiently with a sugar cane harvester, it is necessary to cut the part of the crop that is close to the field scene, so in the cutting device, the drive shaft extends downward from the drive case and rotates. The blade is supported at the bottom of the drive shaft. As a result, a load such that the rotary blade is pushed backward by the crop as the machine progresses may be applied to the cutting device.

An object of the present invention is to configure a sugarcane harvester so that it can appropriately support a load such that a rotary blade is pushed backward by a crop as the machine progresses.

[Problem 3]
The technical issues corresponding to the background technique 3 are as follows.
In the sugarcane harvester, in the divider device, the outer screw is arranged laterally and outwardly with respect to the inner screw in order to secure the function of separating crops, so that the left and right width across the left and right divider devices is large. It has become.
As a result, there is room for improvement in order to cope with the case where the sugar cane harvester is carried on the loading platform of the truck and the case where the sugar cane harvester is stored in a warehouse or the like.

An object of the present invention is to configure a sugarcane harvester so that it can be easily transported on a truck bed and stored in a warehouse or the like.

[Issue 4]
The technical issues corresponding to the background technique 4 are as follows.
In order to mow the crop without waste in the sugar cane harvester, it is necessary to cut the part close to the field scene at the root of the crop with a cutting device.
As a result, in the sugar cane harvester, the height of the cutting section and the transport device is changed by connecting the elevating cylinder to the machine and the left and right traveling devices and changing the height of the machine by the elevating cylinder. , It is considered to be configured so that a cutting device can cut a part close to a field scene at the root of a crop.

INDUSTRIAL APPLICABILITY The present invention is configured so that when a sugarcane harvester is provided with an elevating cylinder capable of changing the height of the machine body (cutting part and transport device), it can be adapted to a state where no work is performed. I am aiming.

[Means 1]
The solution means corresponding to the problem 1 is as follows.
The sugar cane harvester of the present invention is provided with a cutting unit having a cutting device for cutting the bearings of the crops in the field, and a transporting device for transporting the crops cut by the cutting unit toward the rear of the machine. The transport device includes left and right side walls, left and right bearing mechanisms supported by the side walls, and an upper rotating body rotatably supported around the left and right bearing mechanisms along the left and right directions. It has a lower rotating body that is rotatably supported around the shaft core along the left-right direction and is supported over the left and right bearing mechanisms, and the upper rotating body and the lower rotating body are opposite to each other. By being rotationally driven, the crop is configured to be conveyed while being sandwiched between the upper rotating body and the lower rotating body, and the bearing mechanism is attached to and detached from one of the rotating body and the side wall. It has a possibly attached shaft member, a holder detachably attached to the other of the rotating body and the side wall, and a bearing attached between the shaft member and the holder. The bearing mechanism is removable to the outside of the side wall through the opening of the side wall.

According to the present invention, in the bearing mechanism, one of the shaft member and the holder is removed from the side wall of the transport device, and the other of the shaft member and the holder is removed from the rotating body, whereby the shaft member, the holder and the bearing are transported by the transport device. The bearing mechanism can be removed outward from the side wall of the transport device by pulling it outward through the opening of the side wall of the.

As a result, in the transport device, the bearing mechanism can be removed without removing the rotating body from the transport device and without significantly disassembling the peripheral portion of the side wall of the transport device, so that maintenance work such as replacement of bearings and shaft members can be performed. Can be easily performed outside the transport device.

In the present invention, it is preferable that the holder is detachably attached to the side wall and the shaft member is detachably attached to the rotating body.

According to the present invention, in the bearing mechanism, the holder is attached to the side wall of the transport device, and the shaft member is attached to the rotating body. The holder is removed from the side wall of the transport device, and the shaft member is removed from the rotating body, so that the bearing mechanism is reasonably removed from the side wall of the transport device.

In the present invention, a first spline portion provided on the shaft member and a second spline portion provided on the rotating body are provided, and the first spline portion is integrally rotatably attached to the second spline portion. It is preferable that the shaft member is attached to the rotating body and the first spline portion is removed from the second spline portion, so that the shaft member is removed from the rotating body.

According to the present invention, in the bearing mechanism, when the holder is attached to the side wall of the transport device and the shaft member is attached to the rotating body, the shaft member is provided with the first spline portion and the rotating body is provided with the second spline portion. ing.
As a result, the shaft member can be easily attached to the rotating body by inserting the first spline portion and the second spline portion, and the shaft member can be pulled out from the rotating body by the extraction by the first spline portion and the second spline portion. It can be easily removed.

In the present invention, the shaft member is connected to the lateral portion of the rotating body by a shaft connecting tool, so that the shaft member is attached to the rotating body and the connection of the shaft connecting tool is released. It is preferable that the shaft member is removed from the rotating body.

According to the present invention, in the bearing mechanism, when the holder is attached to the side wall of the transport device and the shaft member is attached to the rotating body, a shaft connecting tool for attaching the shaft member to the rotating body is provided.
As a result, the shaft member can be easily attached to the rotating body by connecting with the shaft connecting tool, and the shaft member can be easily removed from the rotating body by disconnecting the shaft connecting tool.

In the present invention, the opening is formed so that a gap is formed between the holder and the opening by changing the phase of the holder around the shaft member, and the opening is formed from the outside with respect to the opening. It is preferable that the shaft member can be connected to and disconnected from the rotating body through the gap.

When the bearing mechanism is attached to the side wall of the transport device, the connecting portion (shaft connecting tool) between the shaft member and the rotating body is located inside the side wall of the transport device.
According to the present invention, when the bearing mechanism is attached to and removed from the side wall of the transport device, in the bearing mechanism, the holder can rotate around the shaft member via the bearing, so that the holder is slightly phase-changed around the shaft member. A gap is created between the holder and the opening on the side wall of the transfer device.

This makes it possible to easily connect and disconnect the shaft member and the rotating body by the shaft connecting tool by inserting the tool from the outside to the inside through the gap with respect to the opening of the side wall of the transport device. When the bearing mechanism is attached to the side wall of the transport device, the holder may be slightly phase-changed to close the gap after the shaft member and the rotating body are connected by the shaft connecting tool.

In the present invention, it is preferable that the bearing mechanism is provided with a drop-off preventing member that supports the rotating body in a state of being removed from the side wall and prevents the rotating body from falling off.

When the bearing mechanism is removed from the side wall of the transport device, there is no support for the rotating body, so that the rotating body may fall off downward.
According to the present invention, even if the bearing mechanism is removed from the side wall of the transport device, the rotating body is supported by the falling-off prevention member, so that the rotating body is prevented from falling off.

In the present invention, the fall-off prevention member is a ring-shaped member attached to the side wall so as to be located on the outer peripheral side of the bearing mechanism, and is an inner circumference with respect to the lateral end portion of the outer peripheral portion of the rotating body. It is preferable that the bearing mechanism comes into contact with the lateral end portion of the outer peripheral portion of the rotating body from the inner peripheral side in a state where the bearing mechanism is removed from the side wall.

According to the present invention, in a state where the bearing mechanism is attached to the side wall of the transport device, the ring-shaped dropout prevention member is attached to the side wall of the transport device and is on the inner peripheral side with respect to the lateral end portion of the outer peripheral portion of the rotating body. It's getting in.
As a result, by setting the gap between the lateral end of the outer peripheral portion of the rotating body and the dropout prevention member to a small size, crop debris and the like can be moved from the lateral end of the outer peripheral portion of the rotating body to the inside of the rotating body. It is possible to prevent it from entering.

[Means 2]
The solution means corresponding to the problem 2 is as follows.
The sugarcane harvester of the present invention has left and right side walls, and is provided with a cutting unit having a cutting device for cutting the root of crops in the field introduced between the left and right side walls as the machine progresses. The cutting device includes a drive case arranged between the left and right side walls, left and right drive shafts extending downward from the right and left portions of the drive case, and lower portions of the left and right drive shafts. It has left and right rotary blades that are supported by the drive shaft and are rotationally driven by the drive shaft. A horizontal frame configured to be cut and connected over the left and right side walls is provided, and the drive case is supported by the horizontal frame.

According to the present invention, when a load such that the rotary blade is pushed backward by the crop as the machine advances is applied to the cutting device, the drive case may be displaced due to this load.

According to the present invention, as described above, even if a state in which the drive case is about to be displaced occurs, this state is supported and prevented by the horizontal frame, and the cutting device has sufficient strength against the above-mentioned load. Supported by.
According to the present invention, since the horizontal frame is connected over the left and right side walls of the harvesting portion and is supported with sufficient strength, the cutting device is supported with sufficient strength against the above-mentioned load. It is advantageous.

According to the present invention, since the horizontal frame supports the drive case, the horizontal frame is arranged at a relatively high position in the cutting section. As a result, when the crops in the field are introduced between the left and right side walls of the cutting portion as the aircraft progresses, the horizontal frame is less likely to interfere with the introduction of the crops.

In the present invention, the right end portion of the drive case is connected to the right side wall, the left end portion of the drive case is connected to the left side wall, and the front portion located in front of the drive shaft in the drive case is , It is preferable that it is placed and supported on the horizontal frame.

According to the present invention, the right end of the drive case is connected to the right side wall of the cutting section, and the left end of the drive case is connected to the left side wall of the cutting section, so that the cutting device is supported with sufficient strength.
If a load is applied to the cutting device such that the rotary blade is pushed backward by the crop as the machine advances, it is possible that the load causes the front part of the drive case to try to lower.

According to the present invention, since the front portion of the drive case located on the front side of the drive shaft is mounted and supported on the horizontal frame, the state in which the front portion of the drive case is about to be lowered is reasonably received by the horizontal frame. Is supported.

According to the present invention, the front portion of the drive case located on the front side of the drive shaft is mounted and supported on the horizontal frame, so that the horizontal frame is located on the front portion of the drive case. It can be expected to function as a protector.

In the present invention, the right end portion of the drive case is co-tightened and connected to the connecting portion provided on the right side wall and the right end portion of the horizontal frame, and the left end portion of the drive case is provided on the left side wall. It is preferable that the connecting portion is co-tightened and connected to the left end portion of the horizontal frame.

According to the present invention, the right end portion (left end portion) of the drive case is co-tightened and connected to the connecting portion of the right (left) side wall of the cutting portion and the right end portion (left end portion) of the horizontal frame, thereby cutting the cutting device. Is supported with sufficient strength.

In the present invention, the right support member that supports the load applied from the drive case to the connecting portion of the right side wall is connected to the right side wall and the connecting portion of the right side wall, and the driving is performed. It is preferable that the left support member that supports the load applied to the connecting portion of the left side wall from the case is connected to the left side wall and the connecting portion of the left side wall.

When the right end (left end) of the drive case is connected to the connecting part of the right (left) side wall of the cutting part, the load is cut so that the rotary blade is pushed backward by the crop as the aircraft progresses. When applied to, this load is also applied to the connecting portion of the side wall of the cutting portion via the drive case.
According to the present invention, since the support member is connected to the side wall of the cutting portion and the connecting portion, it is advantageous in terms of supporting the cutting device with sufficient strength against the above-mentioned load.

[Means 3]
The solutions corresponding to the problem 3 are as follows.
The sugarcane harvester of the present invention is provided with a cutting section having a left and right divider device for separating the crop to be harvested and the crop to be left in the field, and the divider device is an inner screw that is rotationally driven around an axis along the vertical direction. And an outer screw, and the outer screw is configured to be arranged laterally outward with respect to the inner screw, and in at least one of the left and right divider devices, the outer screw cuts a crop. It is possible to switch between a usage state in which the crop and the crop to be left in the field are separated from each other and a storage state in which the inner screw is closer to the inner screw than in the usage state when viewed from the front.

According to the present invention, in at least one of the left and right divider devices, the outer screw is stored closer to the inner screw than in the used state with respect to the used state in which the outer screw is arranged laterally outward with respect to the inner screw. You can switch to the state.

As a result, by switching the outer screw to the retracted state, the left-right width across the left and right divider devices can be suppressed, so that the sugar cane harvester can be easily carried on the truck bed, and the sugar cane harvester can be easily harvested. It becomes easier to store the machine in a warehouse or the like.

In the present invention, in at least one of the left and right divider devices, the lower portion of the outer screw is swingably supported around the axis along the front-rear direction, and the outer screw is swing-operated. Therefore, it is preferable that the state of use and the state of storage can be switched.

According to the present invention, in the divider device, the outer screw can be switched between the used state and the retracted state by swinging the outer screw along the left-right direction with the lower part of the outer screw as a fulcrum. The operation of switching between the used state and the retracted state of the screw can be easily performed.

In the present invention, in both the left and right divider devices, the outer screw can be switched between the used state and the retracted state, and the upper portion of the outer screw of the left and right divider devices in the used state is viewed from the front. The left and right outermost parts of the airframe, and the upper part of the outer screw of the left and right divider devices in the retracted state is the left and right most lateral part of the airframe other than the upper part of the outer screw in front view. It is preferable that the cutting portion is closer to the left and right center than the outer portion.

According to the present invention, when the left and right outer screws are switched to the used state in the left and right divider devices, the upper parts of the left and right outer screws are the left and right outermost parts of the aircraft when viewed from the front. As a result, the left-right width over the left and right divider devices becomes large, and the function of separating the crops of the divider device is fully exhibited.

According to the present invention, in order to secure the function of separating crops of the divider device, even if the left and right width across the left and right divider devices is large, the left and right outer screws are switched to the retracted state in the left and right divider devices. As a result, the left-right width over the left and right divider devices can be sufficiently suppressed.

In the present invention, the cutting portion is provided with a vertical frame extending along the vertical direction and a support frame that can be attached to and removed from the rear portion of the upper portion of the vertical frame and the rear portion of the upper portion of the outer screw. It is preferable that the outer screw is set to the used state by attaching the support frame, and can be switched to the retracted state by removing the support frame.

According to the present invention, in the divider device, the outer screw is set to the used state and the outer screw is stabilized in the used state by attaching the support frame to the rear part of the upper part of the vertical frame and the rear part of the upper part of the outer screw. And be held.

At the time of work, the crop hits the inner screw and the outer screw from the front side of the divider device. As a result, the support frame is attached to the rear part of the upper part of the vertical frame and the upper part of the outer screw, so that the crop can be entangled in the attachment part between the support frame and the vertical frame, or in the attachment part between the support frame and the outer screw. Since it is less likely to get entangled, it is advantageous in that the function of separating crops of the divider device is fully exerted.

When attaching and detaching the support frame, the support frame can be attached and detached from the rear side of the divider device, which is advantageous in terms of improving workability.

In the present invention, it is preferable that the inner screw is supported in an inclined posture in which the upper part of the inner screw is closer to the left and right center of the cutting portion than the lower part of the inner screw in front view.

According to the present invention, in the divider device, the upper part of the inner screw is supported in an inclined posture closer to the left and right center of the cutting portion than the lower part of the inner screw in front view, so that the inner screw is supported as compared with the lower part of the crop. Since the upper part of the crop spread in the left-right direction is easily guided toward the center of the left and right of the cutting portion by the inner screw, the crop can be cut well by the cutting portion.

In the present invention, left and right lower support frames that support the lower parts of the left and right inner screws are provided in the lower right and lower left of the cutting portion, and the lower support frame is in an inclined state located laterally outward toward the front side. It is preferable that it is arranged.

According to the present invention, in the left and right divider devices, the distance between the left and right lower support frames that support the lower part of the inner screw is wider toward the front side and narrower toward the rear side, so that the crops in the field are introduced into the cutting section. It is easy to guide the upper part of the crop toward the left and right center of the cutting section, so that the cutting section can cut the crop well.

[Means 4]
The solutions corresponding to the problem 4 are as follows.
The sugar cane harvester of the present invention has a cutting unit having a left and right traveling device for supporting the machine, a cutting device for cutting the root of a crop in a field, and a crop cut by the cutting part toward the rear of the machine. A transport device connected to the rear of the transport device to perform post-treatment of the crops transported by the transport device, and an operation unit provided above the cutting section in the vertical direction. It is provided with an elevating cylinder which is arranged below the driving portion in a vertical posture and is connected to the machine body and the left and right traveling devices, and the elevating cylinder has a cylinder portion and a piston rod portion. The heights of the cutting section and the transport device can be changed by lowering the machine body by contraction operation and raising the machine body by extension operation, and the cylinder portion in the piston rod portion. A regulated state in which the contraction operation of the elevating cylinder can be regulated by being attached over the end on the opposite side to the end and the end on the piston rod side of the cylinder, and the elevating away from the cylinder. A regulating member supported by the end portion of the piston rod portion so as to be swingable is provided over a non-regulated state that allows expansion and contraction of the cylinder, and the regulating member is the operating unit in the non-regulated state. Located below.

According to the present invention, when the sugar cane harvester is carried on a truck bed, or when the sugar cane harvester is stored in a warehouse or the like, the restricting member is operated in the regulated state. good.
As a result, even if the elevating cylinder gradually contracts and the aircraft tries to descend due to vibration during truck transportation or long-term storage in a warehouse, etc., when the weight of the aircraft is hung on the elevating cylinder, the regulatory member The contraction operation of the elevating cylinder is restricted, and the descent of the aircraft is stopped.

According to the present invention, when performing work, the regulating member is operated in an unregulated state, and the elevating cylinder is expanded and contracted to expand and contract the elevating cylinder, so that the machine body (cutting section and transport device) can be operated according to the field and working conditions. Change the height.
The unregulated regulated member is located below the driving unit, and the unregulated regulated member does not protrude significantly from the operating unit to the outside. As a result, the crops in the field are less likely to get entangled with the unregulated regulatory members, and the unregulated regulatory members are less likely to interfere with the work.

In the present invention, the elevating cylinder is provided so that the cylinder portion is on the lower side and the piston rod portion is on the upper side, and the restricting member is located above the cylinder portion in the non-regulated state and said. It is preferable that the piston rod portion is configured to extend laterally outward of the machine body and is provided with a holding member capable of holding and releasing the restricting member in the non-regulated state.

According to the present invention, when the elevating cylinder is set in a posture along the vertical direction so that the cylinder portion is on the lower side and the piston rod portion is on the upper side, the regulating member supported by the piston rod portion of the elevating cylinder is provided. , Placed in a high position.
This is advantageous in that field crops are less likely to get entangled with unregulated regulatory members.

According to the present invention, the regulated member in the non-regulated state is located above the cylinder portion of the elevating cylinder and extends laterally outward from the piston rod portion of the elevating cylinder. This facilitates the operation of the regulated member in the non-regulated state and the regulated state while avoiding interference with the member in the vicinity of the regulated member.

According to the present invention, when the regulated member is operated in the non-regulated state while the work is being performed, the regulated member may be held in the non-regulated state by the holding member. This prevents the regulated member in the non-regulated state from being accidentally operated in the regulated state while the work is being performed.

In the present invention, it is preferable that the deck is provided so as to extend laterally outward from the driving unit, and the restricting member is arranged below the deck.

In sugarcane harvesters, the deck may be provided to extend laterally outward from the driver's section.
According to the present invention, when a deck is provided, the regulatory member is arranged below the deck, and the deck is located above the regulatory member, so that the crops in the field are entangled with the unregulated regulatory member. It is advantageous in terms of reducing the number of.

In the present invention, it is preferable that the step for getting on and off the driving unit is provided on the lateral side of the restricting member so as to overlap the restricting member in a side view.

According to the present invention, when the step is provided, the step is provided on the lateral side of the regulating member in a state where the step overlaps with the regulating member in a side view, and the step exists on the lateral side of the regulating member. It is advantageous in that the crops in the field are less likely to be entangled with the unregulated regulatory members.

It is a left side view of a sugar cane harvester. It is a top view of a sugar cane harvester. It is a front view of the sugar cane harvester in the state where the outer screw of the divider device is operated in the used state. It is a left side view of a cutting part. It is a top view near the divider device. It is a perspective view of the vicinity of a divider device. It is a vertical sectional front view near the lower part of the outer screw in a divider device. It is a front view of the sugar cane harvester in the state where the outer screw of the divider device is operated in the retracted state. It is a left side view near the cursive script. It is a cross-sectional plan view near the cursive script. It is a front view in the vicinity of a cutting device and a horizontal frame. It is a top view in the vicinity of a cutting device and a horizontal frame. It is a vertical sectional left side view of the drive case of a cutting device and a horizontal frame. It is a perspective view of a horizontal frame. It is a left side view of the rear part of a cutting part and a transport device. It is a vertical sectional left side view of the rear part of a cutting part and a transport device. It is a right side view of the rear part of a cutting part and a transport device. It is a schematic plan view which shows the transmission system of the rotating body on the upper side of a transfer device. It is a schematic plan view which shows the transmission system of the rotating body under the transport device. It is a perspective view of the swing support member. It is a perspective view of a support member. It is a cross-sectional plan view near the upper rotating body in a transport device. It is a cross-sectional plan view which shows the state which the right bearing mechanism is removed in the upper rotating body in a transport device. It is a left side view near the left bearing mechanism in the upper rotating body in a transport device. It is a left side view which shows the state in the process of removing the left bearing mechanism in the upper rotating body in a transport device. It is a cross-sectional plan view which shows the state which the left bearing mechanism is removed in the upper rotating body in a transport device. It is a cross-sectional plan view near the lower front rotating body in a transport device. It is a cross-sectional plan view near the lower rotating body on the rear side of the lower front rotating body in the transport device. It is a front view of the vicinity of the elevating cylinder that supports the front wheel and the cutting device. It is a top view near the elevating cylinder which supports a front wheel and a cutting device. It is a perspective view which shows the connection part of the elevating cylinder which supports a front wheel, and the hydraulic cylinder which steer-operates a front wheel. It is a schematic diagram which shows the steering operation system of a front wheel. It is a schematic diagram which shows the elevating operation system of a front wheel. It is a schematic diagram which shows the flow of cutting height control. It is a front view of the vicinity of the elevating cylinder that supports the front wheel and the regulating member that has been operated in an unregulated state. It is a perspective view of a regulation member. It is a front view of the vicinity of the regulation member operated in the unregulated state. It is a left side view near the regulation member operated in the unregulated state. It is a front view of the vicinity of the regulation member operated in the regulation state. It is a left side view of the vicinity of the regulation member operated in the regulation state. It is a left side view near the regulation member, the deck and the step operated in the regulation state.

FIGS. 1 to 41 show sugarcane harvesters, in FIGS. 1 to 41, where F indicates the forward direction, B indicates the backward direction, U indicates the upward direction, and D indicates the downward direction. R indicates the right direction, and L indicates the left direction.

(Overall composition of sugar cane harvester)
As shown in FIGS. 1 and 2, the left and right front wheels 1 which are traveling devices and the left and right rear wheels 2 which are traveling devices support the whole body of the sugar cane harvester.

The cutting section 3, the transport device 4 provided in the rearward tilting posture, the separation device 5 which is a post-processing device connected to the rear part of the transport device 4, and the separation device 5 are extended upward in the tilted posture. An operation unit 7 and an engine 8 provided above the conveyor 6, the cutting unit 3, and the post-processing device are provided on the machine body.

With the above configuration, as the machine progresses, the roots of the crops in the field are cut by the cutting section 3 and the crops are cut, and the crops cut by the cutting section 3 are moved above the rear of the machine by the transport device 4. It is transported toward.

When the crop reaches the transport end of the transport device 4, the crop is shredded at the transport end of the transport device 4 and supplied to the separation device 5, and the shredded crop is downward inside the separation device 5. It falls to the front part of the conveyor 6 while passing through. Sorting wind is supplied to the crops inside the separating device 5, and the scraps are blown off and separated and discharged.

The crops that have fallen to the front of the conveyor 6 are conveyed upward and rearward by the conveyor 6, and are discharged from the discharge portion at the upper part of the rear of the conveyor 6 to the loading platform of a truck or other transport vehicle (not shown). Will be collected.

(Overall composition of the cutting section)
As shown in FIGS. 1 to 4, the cutting unit 3 is provided with a left and right divider device 10, a left and right weed body 11, a tilting device 12, a cutting device 13, and an upper cutting device 48.

As shown in FIGS. 3 and 4, in the cutting section 3, the left and right support frames 49 along the vertical direction, the left and

right side walls

9, 72, the left and right support frames 73 along the front-rear direction, and the left and right along the front-rear direction. The left and right support frames 75 connected over the front portions of the support frame 74 and the support frames 73, 74 are provided.

The left and right side walls 72 are connected to the support frames 49, 73, 74, 75, and the left and right side walls 72 are arranged parallel to the front-rear direction and the vertical direction. The tilting device 12 and the cutting device 13 are supported between the left and right side walls 72.

As shown in FIGS. 4, 7 and 8, the left and right upper support frames 82 are supported on the upper part of the support frame 75 so as to be vertically swingable around the axis P6 along the left-right direction, and the left and right lower support frames 83. Is supported at the lower part of the support frame 75 so as to be able to swing up and down around the axis P7 along the left-right direction. The left and right vertical frames 84 are connected to the front portion of the upper support frame 82 and the front portion of the lower support frame 83, and are arranged so as to extend in the vertical direction.

The single-acting left and right hydraulic cylinders 92 are attached to the support frame 75, the chain 93 is connected to the hydraulic cylinder 92 and the lower support frame 83, and the upper support frame 82 is connected by the hydraulic cylinder 92 and the chain 93. The positions of the lower support frame 83 and the vertical frame 84 in the vertical direction are determined. The side wall 9 is connected to the upper support frame 82, the lower support frame 83 and the vertical frame 84, and the divider device 10 and the weed body 11 are supported by the vertical frame 84.

With the above configuration, as shown in FIGS. 1 to 4, as the aircraft progresses, the left and right cursive scripts 11 and the left and right divider devices 10 separate the crops to be cut and the crops to be left in the field, and the crops to be cut. The upper leaf portion of the crop is cut by the upper cutting device 48, and the crop to be cut is introduced between the left and right side walls 9. The crop introduced between the left and right side walls 9 is cut forward by the cutting device 13 while being tilted forward by the tilting device 12, and is supplied from the crop root to the transport device 4.

(Composition of cursive script in the cutting section)
As shown in FIGS. 3 and 4, the flat plate-shaped left and right grounding portions 85 are connected to each other over the lower portion of the vertical frame 84 and the lower portion of the side wall 9, and the support portion 85a is provided at the front portion of the grounding portion 85. Has been done.

As shown in FIGS. 4, 9 and 10, the cursive script 11 is formed in an elongated flat plate shape. The upper part of the rear part of the weed body 11 is supported by the connection pin 94 on the upper part of the support part 85a of the grounding portion 85 so as to be swingable up and down, and the lower part of the rear part of the weed body 11 is the lower part of the supporting part 85a of the grounding part 85. Is connected to the shear pin 95, and the posture of the weed body 11 is set by the connection pin 94 and the shear pin 95.

When a large load is applied to the cursive script 11 from a crop or a field, the shear pin 95 breaks and the cursive script 11 can swing upward around the connection pin 94. Damage is prevented.

(Structure of divider device in cutting section)
As shown in FIGS. 3 to 6, in the left and right divider devices 10, an inner screw 96 and an outer screw 97 are provided, and the inner screw 96 and the outer screw 97 are provided on the outer peripheral portion of an elongated cylindrical main body portion. , It is configured in the shape to which a spiral body is attached.

A bracket 84a is connected to the upper part of the vertical frame 84, and the inner screw 96 is rotatably supported around the axis P8 along the vertical direction over the bracket 84a of the vertical frame 84 and the ground contact portion 85. There is. The left and right lower support frames 83 are provided in the lower right and lower left of the cutting portion 3, and the lower portion of the inner screw 96 is supported by the lower support frame 83 via the vertical frame 84.

A hydraulic motor 98 that rotationally drives the inner screw 96 is provided on the bracket 84a of the vertical frame 84. A cover 99 that covers the lower support portion of the inner screw 96 is provided on the ground contact portion 85, and a cover 101 that covers the hydraulic motor 98 is provided on the bracket 84a of the vertical frame 84.

The left and right support frames 102 are detachably bolted to the rear portion (rear surface portion) of the upper part of the vertical frame 84, and the support frame 102 extends diagonally forward to the right and diagonally forward to the left from the vertical frame 84. , Bracket 102a is detachably bolted to the front end of the support frame 102.

The outer screw 97 is rotatably supported around the axis P9 along the vertical direction over the bracket 102a of the support frame 102 and the lower portion of the vertical frame 84, and the outer screw 97 is the inner screw in front view. It is arranged on the lateral side with respect to 96.

The hydraulic motor 103 that rotationally drives the outer screw 97 is provided on the bracket 102a of the support frame 102, and the cover 104 that covers the hydraulic motor 103 is provided on the bracket 102a of the support frame 102.

With the divider device 10, the weed body 11, the ground contact portion 85, and the side wall 9 supported by the vertical frame 84, the vertical frame 84 is the upper support frame 82 and as described in the above-mentioned (overall configuration of the cutting portion). It is supported so as to be movable up and down by the lower support frame 83, and the lower limit position of the vertical frame 84 is determined by the hydraulic cylinder 92 and the chain 93.

As the aircraft progresses, when the ground contact portion 85 rides on the convex portion of the field, the upper support frame 82 and the lower support frame 83 swing upward while the chain 93 is loosened, and the vertical frame 84, the divider device 10, and the like are moved. Rise.

When the ground contact portion 85 passes through the convex portion of the field, the weight of the vertical frame 84 and the divider device 10 causes the upper support frame 82 and the lower support frame 83 to swing downward, causing the vertical frame 84 and the divider device 10 and the like to swing downward. It descends to the lower limit position. By expanding and contracting the hydraulic cylinder 92, the lower limit position of the vertical frame 84 can be changed up and down.

(Structure of support for the lower part of the outer screw in the cutting part)
As shown in FIGS. 6 and 7, the support arm 84b is connected to the lower part of the vertical frame 84 and extends laterally outward, and the support member 105 is attached to the support arm 84b of the vertical frame 84. It is supported so as to be swingable around the shaft core P10 along the front-rear direction.

The support member 105 has a substrate portion 105a, a support arm 105b, a holder 105c, a bearing 105d, and a ring portion 105e. The support arm 05b is connected to the disk-shaped substrate portion 105a, and the support arm 105b is supported by the support arm 84b of the vertical frame 84 so as to be swingable around the axis P10.

In the support member 105, the holder 105c is connected to the substrate portion 105a, and the bearing 105d is supported by the holder 105c. The ring portion 105e having a flat plate formed in a ring shape is connected to the outer peripheral portion of the substrate portion 105a. ..

The bottom plate portion 97a is connected to the lower part of the outer screw 97, and the support shaft 97b is connected downward to the bottom plate portion 97a. The support shaft 97b of the outer screw 97 is inserted into the bearing 105d of the support member 105 and is rotatably supported around the shaft core P9.

The lower end portion 97c of the outer screw 97 is close to the outer peripheral portion of the substrate portion 105a of the support member 105, and the ring portion 105e of the support member 105 is inserted into the inner peripheral side of the lower end portion 97c of the outer screw 97.

A disc-shaped lid member 107 is attached to the lower side of the bearing 105d of the support member 105, and a nut 106 for preventing disconnection is attached to the lower part of the support shaft 97b of the outer screw 97. A cover 108 (see FIG. 4) that covers the support member 105 is provided at the bottom of the vertical frame 84.

With the above configuration, in the left and right divider devices 10, the lower portion of the outer screw 97 is swingably supported around the axis P10 along the front-rear direction.
The bearing 105d of the support member 105 is arranged in a space surrounded by the substrate portion 105a and the lid member 107 of the support member 105, the lower end portion 97c of the outer screw 97, the ring portion 105e of the support member 105, and the bottom plate portion 97a of the outer screw 97. It is protected from the soil of the field and the scraps of crops.

(Usage and storage of the outer screw in the cutting section)
In the state shown in FIGS. 3 to 6, in the left and right divider devices 10, the support frame 102 is bolted to the rear part of the upper part of the vertical frame 84, and the bracket 102a of the support frame 102 is attached to the rear part of the upper part of the outer screw 97. It is a state in which the outer screw 97 is set to the usage state C1 for separating the crop to be cut and the crop to be left in the field.

As shown in FIGS. 3 and 5, the left and right upper support frames 82 and the left and right lower support frames 83 are arranged in an inclined state located laterally outward toward the front side. The left and right inner screws 96 are supported in an inclined posture in which the upper part of the inner screw 96 is closer to the left and right center CL of the cutting portion 3 than the lower part of the inner screw 96 when viewed from the front.

As shown in FIGS. 3 and 5, in the used state C1, the left and right outer screws 97 are supported in an inclined posture so that the upper part of the outer screw 97 is located laterally outward with respect to the lower part of the outer screw 97 in front view. Has been done.

As shown in FIG. 4, when viewed from the side, the angle of the rearward inclination of the outer screw 97 is larger than the angle of the rearward inclination of the inner screw 96 (the outer screw 97 stands up more than the inner screw 96). ), The inner screw 96 and the outer screw 97 intersect.

As described later (arrangement state of the regulating member) and FIG. 3, the left and right side mirrors 7b of the driving unit 7 are provided, and the left and right guide frames 134 are provided on the lateral side of the machine along the front-rear direction. ing. In the left and right divider devices 10, the upper portion of the outer screw 97 in the used state C1 is located laterally outside the side mirror 7b and the guide frame 134 of the driving unit 7 in front view, and the outer screw 97 in the used state C1 is located. The upper part of is the left and right outermost part of the aircraft.

In the left and right divider devices 10, when the outer screw 97 is switched to the retracted state C2, the support frame 102 shown in FIGS. 3 to 6 is removed from the upper portion of the vertical frame 84 and the bracket 102a.

As shown in FIGS. 7 and 8, the outer screw 97 is swung around the axis P10 toward the inner screw 96, and the position of the upper part of the outer screw 97 is in front view, in use state C1 (FIG. 3). The outer screw 97 is set to the retracted state C2 by setting the outer screw 97 closer to the inner screw 96 than the position of the upper part of the outer screw 97 in (see). A fixing member (not shown) such as a belt may be attached to the outer screw 97 to hold the outer screw 97 in the retracted state C2.

The upper part of the outer screw 97 of the left and right divider devices 10 in the stored state C2 is closer to the left and right center CL of the cutting portion 3 than the left and right guide frames 134 when viewed from the front. In this case, the side mirror 7b or the guide frame 134 of the driving unit 7 is the left and right outermost parts of the body other than the upper part of the outer screw 97.

(Configuration of tilting device in the cutting section)
As shown in FIGS. 3, 15 and 16, two sets of tilting devices 12 are provided in the cutting section 3 over the left and right side walls 72. The tilting device 12 is configured by radially attaching a plurality of tilting plates 12b having concave-convex ends formed on the outer peripheral portion of the cylindrical main body portion 12a, and extending over the left and right side walls 72. It is rotatably supported around the axis P1 along the left-right direction.

An opening 72a is opened in the left side wall 72, the left end portion of the rear tilting device 12 faces the opening 72a of the left side wall 72, and the gear 12c is located at the left end portion of the rear tilting device 12. It is connected. A rotation speed sensor (not shown) attached to the outer frame (not shown) of the left side wall 72 faces the gear 12c of the rear tilting device 12, and the rear side tilting is performed by the rotation speed sensor. The rotation speed of the device 12 is detected.

In the bearing (not shown) that supports the main body 12a of the tilting device 12, as shown in later (configuration of the right bearing mechanism of the upper rotating body in the transport device) and FIG. 23, the right bearing mechanism 115 A ring-shaped cover (not shown) similar to the cover 115d provided is provided on a bearing (not shown) that supports the main body 12a of the tilting device 12.

(Structure of cutting device in the cutting section)
As shown in FIGS. 11, 12, 13, and 29, the cutting device 13 includes a drive case 15, left and right drive shafts 16, left and right rotary blades 14, and a hydraulic motor 20.
The drive case 15 has a lower main body portion 15a and an upper flat plate-shaped lid portion 15b, and the lid portion 15b is connected to the main body portion 15a by a bolt 113.

The left and right drive shafts 16 are supported by the right and left portions of the drive case 15 so as to be rotatable around the axis P2 along the vertical direction, and extend downward from the right and left portions of the drive case 15. It has been issued. A plurality of scraping members 19 whose ends are formed in an uneven shape are attached to the drive shaft 16 along the vertical direction, and the flange portion 16b is connected to the lower end portion of the drive shaft 16.

In the rotary blade 14, a plurality of blade portions 18 are radially bolted to the lower surface portion of the disk member 17. The disk member 17 is connected to the flange portion 16b of the drive shaft 16 by a shear bolt 109, and the rotary blade 14 is attached to the drive shaft 16.

A hydraulic motor 20 is connected to the upper surface of the drive case 15, and the drive gear 20a of the hydraulic motor 20 and the input gear 16a of the left drive shaft 16 mesh with each other inside the drive case 15. A relay gear 21 is rotatably supported inside the drive case 15, and the relay gear 21 meshes with the drive gear 20a of the hydraulic motor 20, and the input gear 16a of the right drive shaft 16 meshes with the relay gear 21. is doing.

When the drive gear 20a of the hydraulic motor 20 is rotationally driven by the hydraulic motor 20, the power of the hydraulic motor 20 is transmitted to the left drive shaft 16, and the left rotary blade 14 rotates clockwise in FIG. Driven.

At the same time, the power of the hydraulic motor 20 is transmitted to the input gear 16a of the right drive shaft 16 via the relay gear 21, is transmitted to the right drive shaft 16, and the right rotary blade 14 is counterclockwise in FIG. It is driven to rotate in the direction. As described above, the left and right rotary blades 14 are rotationally driven in opposite directions by the common hydraulic motor 20.

With the above configuration, the tilting device 12 acts on the upper part of the crop in which the crop is introduced between the left and right side walls 72, and the crop is tilted forward with respect to the machine body. When the root of the crop that has been knocked down by the tilting device 12 reaches the cutting device 13, the root of the crop is introduced between the left and right rotary blades 14 and cut by the left and right rotary blades 14. The root of the cut crop is supplied to the transport device 4 by the rotation of the left and right rotary blades 14, and the crop is drawn into the transport device 4.

When the root of the crop is introduced between the left and right rotary blades 14 and cut, the shear bolt 109 breaks when a large load is applied to the rotary blade 14. This prevents damage to the drive shaft 16 and the drive case 15.

(Structure of support for cutting device in cutting section)
As shown in FIGS. 11, 12, and 13, in the cutting portion 3, the flat plate-shaped left and right connecting portions 110 are connected to the left and right side walls 72 along the front-rear direction. The channel-shaped right support member 111 in a side view is connected to the front portion of the upper surface portion of the right connecting portion 110 and the right side wall 72. A channel-shaped left support member 111 in a side view is connected to the front portion of the upper surface portion of the left connecting portion 110 and the left side wall 72.

As shown in FIG. 14, a horizontal frame 112 is provided. In the horizontal frame 112, the flat plate-shaped left and right flange portions 112b are connected to the right end portion and the left end portion of the square pipe-shaped main body portion 112a, and the flat plate-shaped left and right connecting portions 112c are connected to the main body portion 112a and the flange portion 112b. It is connected over.

As shown in FIGS. 11, 12, and 13, the right flange portion 112b of the horizontal frame 112 is connected to the lower portion of the right side wall 72 with respect to the front portion of the right connecting portion 110, and the horizontal frame 112 is connected to the lower portion. The left flange portion 112b is connected to a lower portion of the left side wall 72 with respect to the front portion of the left connecting portion 110, and the horizontal frame 112 is connected to the left and right side walls 72.

The right end portion of the drive case 15 is abutted against the lower surface portion of the right connecting portion 110, and the front portion of the right end portion of the drive case 15 is between the right connecting portion 110 and the right connecting portion 112c of the horizontal frame 112. It is inserted in.

The left end portion of the drive case 15 is abutted against the lower surface portion of the left connecting portion 110, and the front portion of the left portion of the drive case 15 is between the left connecting portion 110 and the left connecting portion 112c of the horizontal frame 112. It is inserted in.

A bolt 114 is inserted over the front portion of the right end portion of the drive case 15, the right connecting portion 112c of the horizontal frame 112, and the front portion of the right connecting portion 110, and the right end portion of the drive case 15 The right connecting portion 112c of the horizontal frame 112 and the right connecting portion 110 are jointly fastened and connected by bolts 114.

A bolt 114 is inserted over the front portion of the left end portion of the drive case 15, the left connecting portion 112c of the horizontal frame 112, and the front portion of the left connecting portion 110, and the left end portion of the drive case 15 The left connecting portion 112c of the horizontal frame 112 and the left connecting portion 110 are jointly fastened and connected by bolts 114.

The rear portion of the right end portion and the rear portion of the left end portion of the drive case 15 and the rear portion of the left and right connecting portions 110 are connected by bolts 114.
With the above configuration, the right end portion of the drive case 15 is connected to the right side wall 72 of the cutting portion 3, and the left end portion of the drive case 15 is connected to the left side wall 72 of the cutting portion 3.

The bolt 113 of the drive case 15 is on the upper surface of the main body 112a of the horizontal frame 112. As a result, the drive case 15 is supported by the horizontal frame 112, and the front portion of the drive case 15 (the front portion located on the front side of the left and right drive shafts 16 in the drive case) is mounted and supported on the horizontal frame 112. (The drive case 15 is received from below).

With the above configuration, the cutting device 13 is supported between the left and right side walls 72, and the drive shaft 16 (axis core P2) is set to the forward leaning posture in the side view (see FIGS. 15 and 16). , The rotary blade 14 is in a forward downward tilting posture.

When a load is applied to the cutting device 13 so that the rotary blade 14 is pushed backward by the crop as the machine advances, the drive case 15 tries to be rotated counterclockwise in FIG. 13 in front of the drive case 15. A state occurs in which the portion is displaced downward. The state (load) in which the front portion of the drive case 15 is displaced downward is received and prevented by the lateral frame 112.

When a load is applied to the left and right connecting portions 110 from the right end portion and the left end portion of the drive case 15 due to the state (load) in which the front portion of the drive case 15 is displaced downward, the above-mentioned load is supported by the left and right support members 111. Displacement.

(Overall configuration of transport equipment)
As shown in FIGS. 15 to 19, in the transport device 4, the left and right side walls 22 are provided, and a plurality of frames 23 are connected over the upper and lower portions of the left and right side walls 22, and are connected to the lower parts of the left and right side walls 22. The bottom plate 24 is connected to the bottom plate 24, and the side wall 22, the frame 23, and the bottom plate 24 form a box-shaped structure.

Six sets of

rotating body units

31, 32, 33, 34, 35, 36 are supported inside the above-mentioned structure, and the front portion of the side wall 22 is connected to the rear portion of the cutting portion 3 (side wall 72). The rear portions of the side wall 22 and the bottom plate 24 are connected to the separating device 5.

Each of the rotating body units 31 to 36 has upper

rotating bodies

31a, 32a, 33a, 34a, 35a, 36a that can rotate around the axis P11, P21, P31, P41, P51, P61 along the left-right direction. It has lower

rotating bodies

31b, 32b, 33b, 34b, 35b, 36b that can rotate around the shaft cores P12, P22, P32, P42, P52, P62 along the left-right direction, and has a rotating body unit 31. ~ 36 are arranged at intervals along the transport direction of the crop.

The upper rotating bodies 31a to 36a are rotationally driven in the counterclockwise direction of FIG. 16, and the lower rotating bodies 31b to 36b are rotationally driven in the clockwise direction of FIG. The rotating bodies 31b to 36b are rotationally driven in opposite directions to each other.

In the upper rotating bodies 31a to 35a and the lower rotating bodies 31b to 35b, a plurality of scraping members 26 having concave and convex ends are radially connected to the outer peripheral portion of the cylindrical main body 25. ing.

In the rotating body unit 36 located at the conveying end portion of the conveying device 4, the upper rotating body 36a and the lower rotating body 36b have a plurality of horizontally long shredding blades 27 on the outer peripheral portion of the cylindrical main body portion 25. They are connected in a radial pattern.

With the above configuration, as described in the above-mentioned (overall configuration of sugar cane harvester) and (overall configuration of cutting section), when the stock of the crop cut by the cutting section 3 is supplied to the transport device 4. The root of the crop is drawn between the upper rotating body 31a and the lower rotating body 31b. The crop is transported so that the root of the crop precedes the upper part of the crop while being sandwiched between the upper rotating bodies 31a to 35a and the lower rotating bodies 31b to 35b.

When the crop reaches the transport end of the transport device 4, the crop is sandwiched between the upper rotating body 36a and the lower rotating body 36b, shredded by the shredding blade 27, and the upper part of the separating device 5. Is supplied to.

(Structure of rocking support member that supports the rotating body on the upper side of the rotating body unit in the transport device)
As shown in FIGS. 16 and 18, a swing support member 28 is provided for the rotating body units 31 to 35 to swingably support the upper rotating bodies 31a to 35a up and down.

As shown in FIGS. 16 and 20, in the swing support member 28, flat plate-shaped left and right support plates 28b are connected to the right end portion and the left end portion of the support shaft 28a. An arc-shaped first opening 28c and a pair of second openings 28d extending outward from the first opening 28c are opened in the support plate 28b.

The nut 28e is connected by welding to the inner surface of the support plate 28b adjacent to the second opening 28d. The fall-off prevention member 28f, which is a member in which the elongated plate member is formed in a ring shape, is connected to the inner surface of the support plate 28b so as to surround the first opening 28c, the second opening 28d, and the nut 28e.

As shown in FIGS. 15, 16, 18, and 20, in the transport device 4, the swing support member 28 swings vertically and horizontally around the axis P13, P23, P33, P43, and P53 along the left-right direction. The support plate 28b of the rocking support member 28 is supported by the side wall 22 of the side wall 22 along the inner surface of the side wall 22. The arcuate opening 22a is opened in the side wall 22 in a side view, and the support plate 28b of the swing support member 28 faces the opening 22a of the side wall 22.

As a result, the support plate 28b of the rocking support member 28 becomes a part of the side wall 22 of the transport device 4, and the first opening 28c and the second opening 28d of the rocking support member 28 become the transport device 4. It becomes the opening of the side wall 22 of. The fall-off prevention member 28f of the swing support member 28 is attached to the side wall 22 of the transport device 4.

As shown in FIGS. 15, 17, and 18, the right bearing mechanism 115 is supported by the right support plate 28b of the swing support member 28, and is supported by the right side wall 22. The left bearing mechanism 116 is supported by the left support plate 28b of the rocking support member 28, and is supported by the left side wall 22.

With the above configuration, the right portion of the upper rotating bodies 31a to 35a is supported by the right bearing mechanism 115 on the right support plate 28b of the rocking support member 28, and the left portion of the upper rotating bodies 31a to 35a. Is supported by the left support plate 28b of the swing support member 28 by the left bearing mechanism 116.

The upper rotating bodies 31a to 35a are rotatably supported around the shaft cores P11 to P51 via the left and

right bearing mechanisms

115 and 116 by the left and right support plates 28b of the swing support member 28.
The left and right fall-prevention members 28f of the swing support member 28 are inserted into the inner peripheral side with respect to the left and right lateral ends of the outer peripheral portion of the main body 25 of the upper rotating bodies 31a to 35a (FIGS. 22, 23, 26).

The upper rotating bodies 31a to 35a are supported by the swinging support member 28 so as to be vertically swingable around the shaft cores P13 to P53, and can be approached and separated from the lower rotating bodies 31b to 35b. It is supported. Due to the weight of the upper rotating bodies 31a to 35a and the swing support member 28, the upper rotating bodies 31a to 35a approach the lower rotating bodies 31b to 35b.

When the stopper portion (not shown) of the support plate 28b of the swing support member 28 comes into contact with the lower end portion of the opening 22a of the side wall 22, the swing of the swing support member 28 is stopped, and the swing of the swing support member 28 is stopped. The closest position of the rotating bodies 31a to 35a with respect to the lower rotating bodies 31b to 35b is determined. As a result, the upper rotating bodies 31a to 35a do not come into contact with the lower rotating bodies 31b to 35b even when they reach the closest position.

(Structure of the right bearing mechanism of the upper rotating body in the transport device)
As shown in FIGS. 22 and 23, the right bearing mechanism 115 includes a substrate member 115a, a holder 115b, two bearings 115c, a cover 115d, and shaft members 41 to 45.

The substrate member 115a has a flat plate shape and is connected to a cylindrical holder 115b. The shaft members 41 to 45 are inserted into the holder 115b, the bearing 115c is attached between the shaft members 41 to 45 and the holder 115b, and the shaft members 41 to 45 are placed around the shaft cores P11 to P51 via the bearing 115c. It is rotatably supported by the substrate member 115a and the holder 115b. A ring-shaped cover 115d that protects the inner bearing 115c is attached to the end of the holder 115b.

The

sprockets

41a, 42a, 43a, 44a, 45a are connected to the outer ends of the shaft members 41 to 45, and the male

first spline portions

41b, 42b, 43b, 44b, 45b are the inner ends of the shaft members 41 to 45. It is formed in the part.

In the rotating body units 31 to 35, the left and right side plates 25a, which are lateral portions, are connected to the inside of the main body portions 25 of the upper rotating bodies 31a to 35a, and the boss portion 25b is connected to the right side plate 25a. The female second spline portion 25c is formed on the inner surface of the boss portion 25b.

(Mounting state of the right bearing mechanism of the upper rotating body in the transport device)
In the state shown in FIGS. 17 and 22, in the transport device 4, the holder 115b of the right bearing mechanism 115 and the shaft members 41 to 45 are the opening 22a of the right side wall 22 and the first opening of the swing support member 28. Inserted into 28c and the second opening 28d, the right bearing mechanism 115 is connected to the support plate 28b of the swing support member 28, and is connected to the right side wall 22 from the outside. ..

The first spline portions 41b to 45b of the shaft members 41 to 45 are inserted into the boss portions 25b (second spline portions 25c) of the upper rotating bodies 31a to 35a (main body portion 25), and the shaft members 41 to 45 are on the upper side. It is rotatably attached to the rotating bodies 31a to 35a of the above.

In this case, in order to avoid interference between the cover 115d of the right bearing mechanism 115 and the end of the boss portion 25b of the upper rotating bodies 31a to 35a (main body portion 25), the upper rotating bodies 31a to 35a (main body portion 25a). At the end of the boss portion 25b of 25), the corner portion on the inner peripheral side is scraped off.

The substrate member 115a of the right bearing mechanism 115 is applied to the support plate 28b of the rocking support member 28 from the outside, and the bolt 117 is attached to the right side wall 22 from the outside to the substrate of the right bearing mechanism 115. Through the member 115a, it is fastened to the nut 28e of the swing support member 28, and the substrate member 115a and the holder 115b of the right bearing mechanism 115 are connected to the support plate 28b of the swing support member 28.

With the above configuration, in the right bearing mechanism 115, the shaft members 41 to 45 are attached to the upper rotating bodies 31a to 35a (main body portion 25), and the substrate member 115a and the holder 115b are attached to the right side wall 22 of the transport device 4. It will be in the attached state.

(Removal of the bearing mechanism on the right side of the upper rotating body in the transport device)
When removing the right bearing mechanism 115, as shown in FIGS. 22 and 23, the substrate member 115a and the holder 115b of the right bearing mechanism 115 are shaken by removing the bolt 117 from the outside with respect to the right side wall 22. It can be removed from the support plate 28b of the dynamic support member 28, and the right bearing mechanism 115 can be removed from the outside with respect to the right side wall 22.

Along with this, the first spline portions 41b to 45b of the shaft members 41 to 45 are pulled out from the boss portions 25b (second spline portions 25c) of the upper rotating bodies 31a to 35a (main body portion 25), and the shaft. Members 41 to 45 are removed from the upper rotating bodies 31a to 35a.

By removing the substrate member 115a and the holder 115b of the right bearing mechanism 115 outward from the support plate 28b of the rocking support member 28, the right bearing mechanism 115 is removed to the right outside of the right side wall 22. .. When the right bearing mechanism 115 is attached to the right side wall 22, the operation opposite to the above may be performed.

The fall prevention member 28f of the swing support member 28 enters the inner peripheral side with respect to the right lateral end portion of the outer peripheral portion of the main body portion 25 of the upper rotating bodies 31a to 35a, and is inserted from the holder 115b of the right bearing mechanism 115. Is also located on the outer peripheral side.

As a result, even if the right bearing mechanism 115 is removed, the falling off prevention member 28f of the swing support member 28 is on the inner peripheral side at the right lateral end portion of the outer peripheral portion of the main body portion 25 of the upper rotating bodies 31a to 35a. The right portion of the upper rotating bodies 31a to 35a is supported by the falling prevention member 28f of the rocking support member 28 from the inner peripheral side and does not fall off.

The gap between the falling-prevention member 28f of the rocking support member 28 and the right lateral end portion of the outer peripheral portion of the main body 25 of the upper rotating bodies 31a to 35a may be set to be small. ..
As a result, it is possible to prevent the crop scraps and the like transported by the transport device 4 from entering the inside of the upper rotating bodies 31a to 35a along the inner surface of the right side wall 22. It is advantageous in terms of protection of the bearing 115c of the bearing mechanism 115 of the above.

(Structure of the left bearing mechanism of the upper rotating body in the transport device)
As shown in FIGS. 22 and 26, the left bearing mechanism 116 includes a substrate member 116a, a holder 116b, a bearing 116c, a cover 116e, a

shaft member

121, 122, 123, 124, 125 and a flange portion 116d. is doing.

The substrate member 116a has a flat plate shape and is connected to a cylindrical holder 116b. The shaft members 121 to 125 are inserted into the holder 116b, the bearings 116c are attached between the shaft members 121 to 125 and the holder 116b, and the shaft members 121 to 125 are placed around the shaft cores P11 to P51 via the bearings 116c. It is rotatably supported by the substrate member 116a and the holder 116b.

A pair of flange portions 116d are connected to the inner end portions of the shaft members 121 to 125. A ring-shaped cover 116e that protects the inside of the bearing 116c is attached to the end of the holder 116b.

In the upper rotating bodies 31a to 35a, the opening 25d is opened in the center of the left side plate 25a of the main body 25. A nut 25e is connected by welding to a portion of the inner surface of the left side plate 25a of the main body 25 facing the second opening 28d (see FIG. 20) of the swing support member 28.

(Mounting state of the left bearing mechanism of the upper rotating body in the transport device)
In the state shown in FIGS. 15, 22 and 24, in the transport device 4, the holder 116b of the left bearing mechanism 116 and the shaft members 121 to 125 are connected to the first opening 28c and the second opening 28d of the swing support member 28. It is in the inserted state.

The flange portion 116d of the left bearing mechanism 116 is abutted from the outside to the left side plate 25a of the upper rotating bodies 31a to 35a (main body portion 25), and the shaft members 121 to 125 of the left bearing mechanism 116 are attached. It is in a state of being inserted into the opening 25d of the upper rotating bodies 31a to 35a (main body portion 25).
The left bearing mechanism 116 is connected to the support plate 28b of the rocking support member 28, and is connected to the left side wall 22 from the outside.

The bolt 118, which is a shaft connector, is fastened to the nuts 25e of the upper rotating bodies 31a to 35a (main body portion 25) from the outside with respect to the left side wall 22 through the flange portion 116d of the left bearing mechanism 116. The flange portion 116d of the left bearing mechanism 116 is connected to the left side plate 25a of the upper rotating bodies 31a to 35a (main body portion 25). As a result, the shaft members 121 to 125 are connected to the upper rotating bodies 31a to 35a, and the shaft members 121 to 125 are integrally rotatably attached to the upper rotating bodies 31a to 35a.

The board member 116a of the left bearing mechanism 116 is applied to the support plate 28b of the rocking support member 28 from the outside, and the bolt 117 is attached to the left side wall 22 from the outside to the board of the left bearing mechanism 116. The substrate member 116a of the left bearing mechanism 116 is connected to the support plate 28b of the swing support member 28 by being fastened to the nut 28e of the swing support member 28 through the member 116a.

With the above configuration, in the left bearing mechanism 116, the shaft members 121 to 125 are attached to the upper rotating bodies 31a to 35a (main body portion 25), and the substrate member 116a and the holder 116b are attached to the left side wall 22. It becomes.

(Removal of the left bearing mechanism of the upper rotating body in the transport device)
When removing the left bearing mechanism 116, as shown in FIGS. 22 and 24, the bolt 117 is removed from the outside with respect to the left side wall 22. Next, as shown in FIG. 25, the substrate member 116a and the holder 116b of the left bearing mechanism 116 are rotated about 90 degrees around the shaft members 121 to 125 to change the phase.

In this case, since the board member 116a and the holder 116b of the left bearing mechanism 116 are supported by the shaft members 121 to 125 via the bearing 116c, the phase due to the rotation of the board member 116a and the holder 116b of the left bearing mechanism 116 You can make changes reasonably.

As shown in FIG. 25, when the phase of the substrate member 116a and the holder 116b of the left bearing mechanism 116 is changed, the second opening 28d of the swing support member 28 is exposed. The second opening 28d of the swing support member 28 is a gap between the substrate member 116a of the left bearing mechanism 116 and the opening 22a of the left side wall 22.

As described above (configuration of the left bearing mechanism of the upper rotating body in the transport device), the rocking support member 28 is formed on the inner surface of the left side plate 25a of the main body 25 of the upper rotating bodies 31a to 35a. A nut 25e is provided at a portion facing the second opening 28d. As a result, when the second opening 28d of the swing support member 28 is exposed, the opening 22a of the left side wall 22 and the second opening of the swing support member 28 are exposed from the outside with respect to the left side wall 22. Bolt 118 can be seen through 28d.

A tool (not shown) such as a wrench is inserted from the outside with respect to the left side wall 22 through the opening 22a of the left side wall 22 and the second opening 28d of the swing support member 28, and the bolt 118 is inserted by the tool. Remove. As a result, the connection between the shaft members 121 to 125 and the upper rotating bodies 31a to 35a is released.

As shown in FIGS. 25 and 26, the left bearing mechanism 116 is pulled out toward the left while passing the flange portion 116d of the left bearing mechanism 116 through the second opening 28d of the swing support member 28. The left bearing mechanism 116 is removed to the outside of the left side wall 22 to the left.
When the left bearing mechanism 116 is attached to the left side wall 22, the operation opposite to the above may be performed.

The fall-off preventing member 28f of the swing support member 28 enters the inner peripheral side with respect to the left lateral end portion of the outer peripheral portion of the main body portion 25 of the upper rotating bodies 31a to 35a, and is inserted from the holder 116b of the left bearing mechanism 116. Is also located on the outer peripheral side.

As a result, even if the left bearing mechanism 116 is removed, the falling off prevention member 28f of the swing support member 28 is on the inner peripheral side at the left lateral end portion of the outer peripheral portion of the main body portion 25 of the upper rotating bodies 31a to 35a. The left portion of the upper rotating bodies 31a to 35a is supported by the falling prevention member 28f of the rocking support member 28 from the inner peripheral side and does not fall off.

The gap between the falling-prevention member 28f of the rocking support member 28 and the left lateral end portion of the outer peripheral portion of the main body 25 of the upper rotating bodies 31a to 35a may be set to be small. ..
As a result, it is possible to prevent crop scraps and the like transported by the transport device 4 from entering the inside of the upper rotating bodies 31a to 35a along the inner surface of the left side wall 22. It is advantageous in terms of protection of the bearing 116c of the bearing mechanism 116 of the above.

(Structure of supporting the rotating body on the lower side of the rotating body unit in the transport device)
As shown in FIGS. 15 and 17, support members 119 for supporting the lower rotating bodies 31b to 35b are provided on the left and right side walls 22 with respect to the rotating body units 31 to 35.

As shown in FIG. 21, in the support member 119, a pair of second openings 119c extending from the arc-shaped first opening 119b and the first opening 119b are formed on the flat plate-shaped support plate 119a. There is. A nut 19d is connected by welding to an inner surface of the support plate 119a adjacent to the second opening 119c. A fall-prevention member 119e, which is a member in which an elongated plate member is formed in a ring shape, is connected to the inner surface of the support plate 119a so as to surround the first opening 119b, the second opening 119c, and the nut 119d.

As shown in FIGS. 27 and 28, in the transport device 4, the support member 119 is connected to the left and right side walls 22 so that the fall prevention member 119e of the support member 119 enters the left and right side walls 22 inward. ..

As a result, the support plate 119a of the support member 119 becomes a part of the side wall 22 of the transfer device 4, and the first opening 119b and the second opening 119c of the support member 119 become the side wall 22 of the transfer device 4. It becomes an opening. The second opening 119c of the support member 119 becomes a gap (see (see (removal of the bearing mechanism on the left side of the upper rotating body in the transport device) and FIG. 25) described above). The fall prevention member 119e of the support member 119 is attached to the side wall 22 of the transport device 4.

As shown in FIGS. 19, 27, 28, the right bearing mechanism 127 is supported by the right support member 119 and is supported by the right side wall 22 with respect to the front lower rotating body 31b. The left bearing mechanism 128 is supported by the left support member 119 and is supported by the left side wall 22.

The right bearing mechanism 115 is supported by the right support member 119 and is supported by the right side wall 22 with respect to the lower rotating bodies 32b to 35b. The left bearing mechanism 116 is supported by the left support member 119 and is supported by the left side wall 22.

With the above configuration, the right portion of the lower rotating bodies 31b to 35b is supported by the

right bearing members

115 and 127 on the right support member 119, and the left portion of the lower rotating bodies 31b to 35b is formed. It is supported by the left support member 119 by the

left bearing mechanisms

116 and 128.

The lower rotating bodies 31b to 35b are rotatably supported around the shaft cores P12 to P52 via the left and

right bearing mechanisms

115, 116, 127, 128 by the left and right support members 119.
The fall-off prevention member 119e of the left and right support members 119 has entered the inner peripheral side with respect to the left and right lateral ends of the outer peripheral portion of the main body portions 25 of the lower rotating bodies 31b to 35b.

(Structure of the right bearing mechanism of the lower rotating body in the transport device)
As shown in FIG. 27, the right bearing mechanism 127 for the lower rotating body 31b is the same as the right bearing mechanism 115 for the upper rotating bodies 31a to 35a (see FIGS. 22 and 23), and the substrate member 127a, It has a holder 127b, two bearings 127c, and a shaft member 51. In addition to this, the right bearing mechanism 127 has seal members 127d provided at both ends of the holder 127b.

The substrate member 127a has a flat plate shape and is connected to a cylindrical holder 127b. The shaft member 51 is inserted into the holder 127b, the bearing 127c is attached between the shaft member 51 and the holder 127b, and the shaft member 51 is rotatable around the shaft core P12 via the bearing 127c, so that the substrate member 127a and It is supported by the holder 127b. The sprocket 51a is connected to the outer end of the shaft member 51, and the male first spline portion 51b is formed at the inner end of the shaft member 51.

A grease nipple 51c is provided at the outer end of the shaft member 51, and a passage 51d is provided in the shaft member 51 over the space between the two bearings 127c in the holder 127b and the grease nipple 51c. ..

As shown in FIG. 28, the right bearing mechanism 115 for the lower rotating bodies 32b to 35b is the same substrate member 115a and holder 115b as the bearing mechanism 115 for the upper rotating bodies 31a to 35a (see FIGS. 22 and 23). It also has two bearings 115c, a cover 115d, and shaft members 52-55.

The

sprockets

52a, 52b, 53a, 53b, 54a, 54b, 55a, 55b are connected to the outer ends of the shaft members 52 to 55, and the male

first spline portions

52c, 53c, 54c, 55c are the shaft members 52 to. It is formed at the inner end of 55.

Similar to the upper rotating bodies 31a to 35a (see FIGS. 22, 23, 26), the left and right side plates 25a, which are lateral parts, are connected to the inside of the main body 25 of the lower rotating bodies 31b to 35b. , The boss portion 25b is connected to the right side plate 25a, and the female second spline portion 25c is formed on the inner surface of the boss portion 25b.

(Attachment and removal of the right bearing mechanism of the lower rotating body in the transport device)
The states shown in FIGS. 27 and 28 are the holders 127b of the

right bearing mechanisms

127 and 115 in the transport device 4, similar to the right bearing mechanism 115 (see FIGS. 22 and 23) with respect to the upper rotating bodies 31a to 35a. , 115b and the shaft members 51 to 55 are inserted into the first opening 19b and the second opening 119c of the support member 119, and the

right bearing mechanisms

127 and 115 are connected to the support plate 119a of the support member 119. There is, and it is in a state of being connected to the right side wall 22 from the outside.

The

first spline portions

51b, 52c to 55c of the shaft members 51 to 55 are inserted into the boss portions 25b (second spline portions 25c) of the lower rotating bodies 31b to 35b (main body portion 25), and the shaft members 51 to 55 is integrally rotatably attached to the lower rotating bodies 31b to 35b.

The

substrate members

127a, 115a of the

right bearing mechanism

127, 115 are applied from the outside to the support plate 119a of the support member 119, and the bolt 117 is applied to the right side wall 22 from the outside, and the right bearing mechanism 127. , 115 are fastened to the nut 119d of the support member 119 through the

substrate members

127a and 115a, and the

substrate members

127a and 115a of the

right bearing mechanism

127 and 115 are connected to the support plate 119a of the support member 119.

The fall-off prevention member 119e of the support member 119 enters the inner peripheral side with respect to the right lateral end portion of the outer peripheral portion of the main body portion 25 of the lower rotating bodies 31b to 35b, and the holder 127b of the

right bearing mechanism

127, 115. , 115b is located on the outer peripheral side.

The difference between the right bearing mechanism 127 and the right bearing mechanism 115 is that the seal member 127d of the right bearing mechanism 127 is attached to the outer surface of the boss portion 25b of the lower rotating body 31b (main body portion 25). It has become. The grease can be filled in the space inside the holder 127b of the right bearing mechanism 127 and the bearing 127c through the passage 51d from the grease nipple 51c of the shaft member 51.

With the above configuration, in the

right bearing mechanism

127, 115, the shaft members 51 to 55 are attached to the lower rotating body 31b (main body portion 25), and the

substrate members

127a, 115a and the

holders

127b, 115b are on the right side wall 22. It will be in the state of being attached to.

When removing the

right bearing mechanisms

127 and 115, the same operations as described above (removal of the right bearing mechanism of the upper rotating body in the transport device) and the operations shown in FIGS. 22 and 23 may be performed.

(Structure of the left bearing mechanism of the lower rotating body in the transport device)
As shown in FIG. 27, the left bearing mechanism 128 with respect to the lower rotating body 31b is the substrate member 128a, similarly to the left bearing mechanism 116 with respect to the upper rotating bodies 31a to 35a (see FIGS. 22 and 26). It has a holder 128b, one bearing 128c, a shaft member 121, and a flange portion 128d. In addition to this, the left bearing mechanism 128 has a seal member 128e, a lid member 128f and a grease nipple 128g.

The substrate member 128a has a flat plate shape and is connected to a cylindrical holder 128b. The shaft member 121 is inserted into the holder 128b, the bearing 128c is attached between the shaft member 121 and the holder 128b, and the shaft member 121 is rotatable around the shaft core P12 via the bearing 128c, so that the substrate member 128a and It is supported by the holder 128b. A pair of flange portions 128d are connected to the inner end portion of the shaft member 121.

In the holder 128b, a seal member 128e is provided in a portion between the bearing 128c and the flange portion 128d. The lid member 128f is provided at the outer end portion of the holder 128b, and the grease nipple 128g is provided at a portion of the lid member 128f that is radially outwardly separated from the shaft core P12.

As shown in FIG. 28, the left bearing mechanism 116 for the lower rotating bodies 32b to 35b is the same substrate member 116a as the left bearing mechanism 116 for the upper rotating bodies 31a to 35a (see FIGS. 22 and 26). It has a holder 116b, one bearing 116c, a flange portion 116d, a cover 116e, and has shaft members 122 to 125.

Similar to the upper rotating bodies 31a to 35a (see FIGS. 22, 23, 26), the opening 25d is opened in the center of the left side plate 25a of the main body 25 of the lower rotating bodies 31b to 35b. A nut 25e is connected by welding to a portion of the inner surface of the left side plate 25a of the main body 25 facing the second opening 119c of the support member 119.

(Attachment and removal of the left bearing mechanism of the lower rotating body in the transport device)
The states shown in FIGS. 27 and 28 are the holders 128b of the

left bearing mechanisms

128 and 116 in the transport device 4, similar to the left bearing mechanism 116 (see FIGS. 22 and 24) with respect to the upper rotating bodies 31a to 35a. , 116b and the shaft members 121 to 125 are inserted into the first opening 119b and the second opening 119c of the support member 119.

The

flange portions

128d, 116d of the

left bearing mechanisms

128, 116 are abutted from the outside to the left side plate 25a of the lower rotating bodies 31b to 35b (main body portion 25), and the

left bearing mechanisms

128, 116 The shaft members 121 to 125 are in a state of being inserted into the opening 25d of the lower rotating bodies 31b to 35b (main body portion 25).
The

left bearing mechanisms

128 and 116 are connected to the support plate 119a of the support member 119, and are connected to the left side wall 22 from the outside.

The bolt 118, which is a shaft connector, passes through the

flange portions

128d, 116d of the

left bearing mechanisms

128, 116 from the outside with respect to the left side wall 22, and the nuts 25e of the lower rotating bodies 31b to 35b (main body portion 25). The

flange portions

128d and 116d of the

left bearing mechanisms

128 and 116 are connected to the left side plate 25a of the lower rotating bodies 31b to 35b (main body portion 25). As a result, the shaft members 121 to 125 are connected to the lower rotating bodies 31b to 35b, and the shaft members 121 to 125 are integrally rotatably attached to the lower rotating bodies 31b to 35b.

The

substrate members

128a, 116a of the

left bearing mechanism

128, 116 are abutted to the support plate 119a of the support member 119 from the outside, and the bolt 117 is attached to the left side wall 22 from the outside to the left bearing mechanism 128. , 116, through the

substrate members

128a, 116a, are fastened to the nut 119d of the support member 119, and the

substrate members

128a, 116a of the

left bearing mechanism

128, 116 are connected to the support plate 119a of the support member 119.

The fall-off prevention member 119e of the support member 119 enters the inner peripheral side with respect to the left lateral end portion of the outer peripheral portion of the main body portion 25 of the lower rotating bodies 31b to 35b, and the holders 128b of the

left bearing mechanisms

128 and 116b. , 116b is located on the outer peripheral side.
Grease can be filled from the grease nipple 128g of the left bearing mechanism 128 to the space inside the holder 128b of the left bearing mechanism 128 and the bearing 128c.

With the above configuration, in the

left bearing mechanism

128, 116, the shaft members 121 to 125 are attached to the lower rotating bodies 31b to 35b (main body portion 25), and the

substrate members

128a, 116a and the

holders

128b, 116b are on the left. It is in a state of being attached to the side wall 22.

When removing the

left bearing mechanisms

128 and 116, the same operations as described above (removal of the left bearing mechanism of the upper rotating body in the transport device) and the operations shown in FIGS. 22, 24, 25 and 26 may be performed.

(Structure of rotational drive of the rotating body on the upper side of the rotating body unit in the transport device)
As shown in FIGS. 17 and 18, in the rotating body unit 36, the drive shaft 46 is connected to the upper rotating body 36a, and the upper rotating body 36a can be rotated around the axis P61 of the side wall 22 by the drive shaft 46. Is supported by. The hydraulic motor 29 is connected to the left side wall 22, and the upper rotating body 36a is rotationally driven by the hydraulic motor 29.

The sprocket 46a and the first gear 46b are connected to the portion of the drive shaft 46 that protrudes outward from the right side wall 22. The support shaft 37 is rotatably supported on the right side wall 22, the gear 37a of the support shaft 37 meshes with the first gear 46b of the drive shaft 46, and the large-diameter flywheel 38 is connected to the support shaft 37. Has been done.

In the right side wall 22, the

relay shafts

61, 62, 63, 64, and 65 are rotatably supported at the portions corresponding to the shaft cores P13, P23, P33, P43, and P53. Support members 39 are connected via bearings (not shown) over the ends of the

relay shafts

61 and 62. Another support member 39 is connected via bearings (not shown) over the ends of the

relay shafts

62, 63. Another support member 39 is connected via a bearing (not shown) over the ends of the

relay shafts

63, 64. Another support member 39 is connected via bearings (not shown) over the ends of the

relay shafts

64, 65.

The

sprockets

61a and 61b are connected to the relay shaft 61.

Sprockets

62a, 62b, 62c, 63a, 63b, 63c, 64a, 64b, 64c, 65a, 65b, 65c are connected to each of the relay shafts 62 to 65.

The transmission chain 71 extends over the sprocket 61a of the relay shaft 61 and the sprocket 62a of the relay shaft 62, over the sprocket 62b of the relay shaft 62 and the sprocket 63b of the relay shaft 63, and the sprocket 63a of the relay shaft 63 and the relay shaft. It is attached to the sprocket 64a of the relay shaft 64, the sprocket 64b of the relay shaft 64 and the sprocket 65b of the relay shaft 65, and the sprocket 65a of the relay shaft 65 and the sprocket 46a of the drive shaft 46.

A tension roller 40 made of synthetic resin is provided for the transmission chain 71, and the tension of the transmission chain 71 is maintained. In the transmission chain 71, a portion of the relay shaft 61 close to the sprocket 61a, a portion of the relay shaft 62 close to the sprocket 62b, a portion of the relay shaft 63 close to the sprocket 63a, a portion of the relay shaft 64 close to the sprocket 64b, and a sprocket of the relay shaft 65. A tension roller 40 is arranged in a portion close to 65a.

The transmission chain 91 extends over the sprocket 61b of the relay shaft 61 and the sprocket 41a of the shaft member 41, over the sprocket 62c of the relay shaft 62 and the sprocket 42a of the shaft member 42, and the sprocket 63c of the relay shaft 63 and the shaft member. It is attached to the sprocket 43a of the relay shaft 64, the sprocket 64c of the relay shaft 64, the sprocket 44a of the shaft member 44, and the sprocket 65c of the relay shaft 65 and the sprocket 45a of the shaft member 45.

(Structure of rotational drive of the rotating body on the lower side of the rotating body unit in the transport device)
As shown in FIGS. 17 and 19, in the rotating body unit 36, the drive shaft 56 is connected to the lower rotating body 36b, and the lower rotating body 36b is moved around the axis P62 of the side wall 22 by the driving shaft 56. It is rotatably supported. The hydraulic motor 30 is connected to the left side wall 22, and the lower rotating body 36b is rotationally driven by the hydraulic motor 30.

The sprocket 56a and the second gear 56b are connected to the portion of the drive shaft 56 that protrudes outward from the right side wall 22. The first gear 46b of the drive shaft 46 and the second gear 56b of the drive shaft 56 are in mesh with each other, and the first gear 46b of the drive shaft 46 and the second gear 56b of the drive shaft 56 are configured to have the same diameter. There is.

A sprocket 51a is connected to the shaft member 51.

Sprockets

52a, 52b, 53a, 53b, 54a, 54b, 55a, 55b are connected to each of the shaft members 52 to 55.

The transmission chain 81 extends over the sprocket 51a of the shaft member 51 and the sprocket 52a of the shaft member 52, over the sprocket 52b of the shaft member 52 and the sprocket 53b of the shaft member 53, and the sprocket 53a of the shaft member 53 and the shaft member. It is attached to the sprocket 54a of the shaft member 54, the sprocket 54b of the shaft member 54, the sprocket 55b of the shaft member 55, and the sprocket 55a of the shaft member 55 and the sprocket 56a of the drive shaft 56.

A tension roller 47 made of synthetic resin is provided for the transmission chain 81, and the tension of the transmission chain 81 is maintained. In the transmission chain 81, a portion of the shaft member 51 close to the sprocket 51a, a portion of the shaft member 52 close to the sprocket 52b, a portion of the shaft member 53 close to the sprocket 53a, a portion of the shaft member 54 close to the sprocket 54b, and a sprocket of the shaft member 55. A tension roller 47 is arranged in a portion close to 55a.

(State of rotational drive of the rotating body on the upper side of the rotating body unit in the transport device)
As shown in FIGS. 17 and 18, in the rotating body units 31 to 36, the power of the hydraulic motor 29 is transmitted to the upper rotating body 36a (drive shaft 46), and the upper rotating body 36a (drive shaft 46) causes the upper rotating body 36a (drive shaft 46). , It is rotationally driven in the clockwise direction of FIG.

The power of the upper rotating body 36a (drive shaft 46) is transmitted to the flywheel 38 via the first gear 46b of the drive shaft 46, and the flywheel 38 is in the opposite direction of the upper rotating body 36a (drive shaft 46). It is driven to rotate. The gear 37a of the support shaft 37 is configured to have a smaller diameter than the first gear 46b of the drive shaft 46, and the flywheel 38 is rotationally driven at high speed.

The power of the upper rotating body 36a (drive shaft 46) is transmitted to the relay shaft 65 via the transmission chain 71, and is transmitted to the upper rotating body 35a (shaft member 45) via the transmission chain 91, and is transmitted to the upper rotating body 35a (shaft member 45). The rotating body 35a (shaft member 45) is rotationally driven in the clockwise direction of FIG.

The power of the upper rotating body 35a (relay shaft 65) is transmitted to the relay shaft 64 via the transmission chain 71, and is transmitted to the upper rotating body 34a (shaft member 44) via the transmission chain 91, and is transmitted to the upper rotating body 34a (shaft member 44). The rotating body 34a (shaft member 44) is rotationally driven in the clockwise direction of FIG.

The power of the upper rotating body 34a (relay shaft 64) is transmitted to the relay shaft 63 via the transmission chain 71, and is transmitted to the upper rotating body 33a (shaft member 43) via the transmission chain 91, and is transmitted to the upper rotating body 33a (shaft member 43). The rotating body 33a (shaft member 43) is rotationally driven in the clockwise direction of FIG.

The power of the upper rotating body 33a (relay shaft 63) is transmitted to the relay shaft 62 via the transmission chain 71, and is transmitted to the upper rotating body 32a (shaft member 42) via the transmission chain 91, and is transmitted to the upper rotating body 32a (shaft member 42). The rotating body 32a (shaft member 42) is rotationally driven in the clockwise direction of FIG.

The power of the upper rotating body 32a (relay shaft 62) is transmitted to the relay shaft 61 via the transmission chain 71, and is transmitted to the upper rotating body 31a (shaft member 41) via the transmission chain 91, and is transmitted to the upper rotating body 31a (shaft member 41). The rotating body 31a (shaft member 41) is rotationally driven in the clockwise direction of FIG.

(State of rotational drive of the rotating body on the lower side of the rotating body unit in the transport device)
As shown in FIGS. 17 and 19, in the rotating body units 31 to 36, the power of the hydraulic motor 30 is transmitted to the lower rotating body 36b (drive shaft 56), and the lower rotating body 36b (drive shaft 56). ) Is rotationally driven in the counterclockwise direction of FIG.

The power of the lower rotating body 36b (drive shaft 56) is transmitted to the lower rotating body 35b (shaft member 55) via the transmission chain 81, and the lower rotating body 35b (shaft member 55) is transferred to the lower rotating body 35b (shaft member 55). It is rotationally driven in the counterclockwise direction shown in FIG.

The power of the lower rotating body 35b (shaft member 55) is transmitted to the lower rotating body 34b (shaft member 54) via the transmission chain 81, and the lower rotating body 34b (shaft member 54) is transferred to the lower rotating body 34b (shaft member 54). It is rotationally driven in the counterclockwise direction of FIG.

The power of the lower rotating body 34b (shaft member 54) is transmitted to the lower rotating body 33b (shaft member 53) via the transmission chain 81, and the lower rotating body 33b (shaft member 53) is transferred to the lower rotating body 33b (shaft member 53). It is rotationally driven in the counterclockwise direction of FIG.

The power of the lower rotating body 33b (shaft member 53) is transmitted to the lower rotating body 32b (shaft member 52) via the transmission chain 81, and the lower rotating body 32b (shaft member 52) is transferred to the lower rotating body 32b (shaft member 52). It is rotationally driven in the counterclockwise direction of FIG.

The power of the lower rotating body 32b (shaft member 52) is transmitted to the lower rotating body 31b (shaft member 51) via the transmission chain 81, and the lower rotating body 31b (shaft member 51) is transferred to the lower rotating body 31b (shaft member 51). It is rotationally driven in the counterclockwise direction of FIG.

As shown in FIGS. 17, 18 and 19, in the rotating body unit 36, the first gear 46b of the drive shaft 46 of the upper rotating body 36a and the second gear 56b of the drive shaft 56 of the lower rotating body 36b are I'm biting. As a result, the rotation of the upper rotating body 36a and the rotation of the lower rotating body 36b are synchronized, and the rotation of the upper rotating bodies 31a to 35a of the other rotating body units 31 to 35 and the lower rotating body are synchronized. The rotations of 31b to 35b are synchronized.

(Structure of support for front and rear wheels)
As shown in FIG. 1, the left and right rear wheels 2 are rotatably supported by the right and left ends of the rear axle case (not shown) connected to the airframe, and their positions are fixed with respect to the airframe. It is rotationally driven by the power of the engine 8.
The left and right front wheels 1 are supported by the airframe so as to be able to be raised and lowered and steered, and the power of the engine 8 is not transmitted to the front wheels 1. The configuration of the support of the front wheel 1 will be described below.

As shown in FIGS. 29, 30, and 31, in the cutting section 3, the support frames 50 are connected along the left-right direction over the upper parts of the left and right support frames 49. The left and right support arms 57 are supported on the lower part of the support frame 49 so as to be able to swing up and down around the axis P3 along the front-rear direction.

A single-acting left and right elevating cylinder 58 is provided, and the elevating cylinder 58 has a cylinder portion 58a and a piston rod portion 58b. The lower portion of the cylinder portion 58a of the elevating cylinder 58 is rotatably supported by the support portion 57a at the end of the support arm 57 around the axis P4 along the vertical direction.

The bracket 59 is connected to the upper part of the support frame 49. In the elevating cylinder 58, the end portion 58f of the piston rod portion 58b on the side opposite to the cylinder portion 58a is connected to the bracket 59 by a connecting pin 129 along the front-rear direction. The front wheel 1 is rotatably supported by an axle portion 60 connected to the lower portion of the cylinder portion 58a of the elevating cylinder 58.

As shown in FIGS. 35 and 41, the elevating cylinder 58 is arranged below the driving unit 7 in a posture along the vertical direction, and is in a state of being connected to the machine body and the left and right front wheels 1. The posture is set along the vertical direction with the cylinder portion 58a on the lower side and the piston rod portion 58b on the upper side.

As shown in FIGS. 29 and 30, a support frame 66 is provided along the left-right direction above the rear portion of the drive case 15 of the cutting device 13, and the left and right brackets 66a are connected to the support frame 66. A reactive type left and right hydraulic cylinders 67 are provided, and the hydraulic cylinders 67 are swayably connected up and down around the axis P5 along the diagonal left and right direction of the bracket 66a of the support frame 66, and the elevating cylinders are raised and lowered. The hydraulic cylinder 67 is connected to the knuckle arm 58c connected to the upper part of the cylinder portion 58a of the 58.

As shown in FIGS. 30 and 31, a channel-shaped groove 58d is formed in the knuckle arm 58c of the elevating cylinder 58. A connection pin 120 having an oval-shaped detent portion 120a is provided. The detent portion 120a of the connection pin 120 is fitted into the groove portion 58d of the elevating cylinder 58, and the connection pin 120 is attached to the knuckle arm 58c of the elevating cylinder 58 in a derotated state. The hydraulic cylinder 67 is connected to the connection pin 120.

(Composition of steering operation of front wheels)
As shown in FIG. 32, the left and right hydraulic cylinders 67 are provided with a control valve 68 for supplying and discharging hydraulic oil, and the control valve 68 is operated by a control handle 69 provided in the operation unit 7. An oil passage 70 is connected to the oil chamber 67a on the piston side of the left and right hydraulic cylinders 67 and the control valve 68, and the oil chamber 67b on the bottom side of the right hydraulic cylinder 67 and the bottom of the left hydraulic cylinder 67. An oil passage 80 is connected to the oil chamber 67b on the side.

When the control handle 69 is operated to the right, hydraulic oil is supplied from the control valve 68 to the oil chamber 67a of the right hydraulic cylinder 67 via the right oil passage 70, and the right hydraulic cylinder 67 contracts. .. The hydraulic oil in the oil chamber 67b of the right hydraulic cylinder 67 is supplied to the oil chamber 67b of the left hydraulic cylinder 67 via the oil passage 80, the left hydraulic cylinder 67 is extended and operated, and the left hydraulic cylinder 67 The hydraulic oil in the oil chamber 67a is returned to the control valve 68 via the oil passage 70 on the left.

In this way, the right hydraulic cylinder 67 contracts and the left hydraulic cylinder 67 expands, so that the cylinder portion 58a of the elevating cylinder 58 is rotated and the left and right front wheels 1 are steered to the right. Cylinder.

When the control handle 69 is operated to the left, hydraulic oil is supplied from the control valve 68 to the oil chamber 67a of the left hydraulic cylinder 67 via the left oil passage 70, and the left hydraulic cylinder 67 contracts. .. The hydraulic oil in the oil chamber 67b of the left hydraulic cylinder 67 is supplied to the oil chamber 67b of the right hydraulic cylinder 67 via the oil passage 80, the right hydraulic cylinder 67 is extended and operated, and the right hydraulic cylinder 67 The hydraulic oil in the oil chamber 67a is returned to the control valve 68 via the right oil passage 70.

In this way, the right hydraulic cylinder 67 is extended and the left hydraulic cylinder 67 is contracted, so that the cylinder portion 58a of the elevating cylinder 58 is rotated and the left and right front wheels 1 are steered to the left. Cylinder.

(Structure of raising and lowering the front wheels)
As shown in FIG. 33, the left and right elevating cylinders 58 are provided with an electromagnetically operated type control valve 86 for supplying and discharging hydraulic oil, and the control valve 86 is operated by a control device 100 provided on the machine body.

When the control valve 86 is operated to the ascending position 86U, hydraulic oil is supplied to the elevating cylinder 58, the elevating cylinder 58 is extended, and the front wheel 1 is operated to be lowered with respect to the machine body. When the control valve 86 is operated to the lowering position 86D, the hydraulic oil is discharged from the elevating cylinder 58, the elevating cylinder 58 is contracted, and the front wheel 1 is raised with respect to the airframe. When the control valve 86 is operated to the neutral position 86N, the supply and discharge of the hydraulic oil to the elevating cylinder 58 is cut off, and the elevating cylinder 58 is stopped.

With the above configuration, the front wheel 1 is moved up and down with respect to the machine body by the elevating cylinder 58 being expanded and contracted. When the front wheel 1 and the rear wheel 2 are in contact with the ground, the elevating cylinder 58 is expanded and contracted, so that the machine body (cutting portion 3 and the transport device 4) is elevated and retracted with respect to the front wheel 1 with the rear wheel 2 as a fulcrum. Therefore, the heights of the cutting unit 3 and the transport device 4 with respect to the front wheel 1 are changed.

(Configuration of front wheel lift control)
As shown in FIG. 33, in the cutting device 13, the oil passage 87 is connected to the hydraulic motor 20, hydraulic oil is supplied to the hydraulic motor 20 through the oil passage 87, and the hydraulic motor 20 operates. The oil passage 88 is connected to the hydraulic motor 20, and the hydraulic oil of the hydraulic motor 20 is discharged through the oil passage 88.

An oil passage 89 for bypass is connected over the

oil passages

87 and 88, and a relief valve 90 is provided in the oil passage 89. A load sensor 79 for detecting the hydraulic pressure of the oil passage 88 is provided, and the detection value A2 of the load sensor 79 is input to the control device 100. By detecting the hydraulic pressure in the oil passage 87 by the load sensor 79, the hydraulic pressure of the hydraulic motor 20 is detected, and the hydraulic pressure of the hydraulic motor 20 is detected as a load applied to the hydraulic motor 20.

A height sensor 77 for detecting the vertical angle of the support arm 57 (see FIG. 29) with respect to the support frame 49 is provided, and the detection value A1 of the height sensor 77 is input to the control device 100. By detecting the vertical angle of the support arm 57 with respect to the support frame 49 by the height sensor 77, the vertical position of the front wheel 1 with respect to the machine body is detected. The height of the device 13 (rotary blade 14) is detected.

A dial-operated type reference height adjuster 76 capable of setting the reference height K1 (see (see (see (see (cutting height control) below)) is provided in the driving unit 7, and the signal of the reference height adjuster 76 is a control device. It is input to 100. The reference height K1 can be arbitrarily set and changed by the operator by artificially operating the reference height adjuster 76.

A cutting height control operating tool 78 for operating and stopping the cutting height control described later is provided in the operating unit 7, and a signal of the cutting height control operating tool 78 is input to the control device 100. The operator can set the operating state and the stopped state by artificially operating the cutting height control operating tool 78.

(Mowing height control)
As shown in FIGS. 33 and 34, and as described below, the control valve 86 is operated by the control device 100 based on the detected values A1 and A2 and the reference height K1, the elevating cylinder 58 is expanded and contracted, and the front wheels are expanded and contracted. The heights of the cutting unit 3, the transport device 4, and the cutting device 13 (rotary blade 14) with respect to 1 (ground) are set.

When the work is started, the reference height K1 is set by the operation position of the reference height adjuster 76 (step S1), the height sensor 77 detects the height sensor 77 (step S2), and the height sensor 77 is detected. The elevating cylinder 58 expands and contracts so that the value A1 becomes the reference height K1 (step S3).

When the cutting height control operating tool 78 is operated to the stop position (step S4), the process returns to step S1, and when the operator operates the reference height adjusting tool 76 to change the reference height K1 (step S4). S1), the elevating cylinder 58 expands and contracts so that the detected value A1 of the height sensor 77 becomes the changed reference height K1 (step S3).

In the state where the cutting height control operating tool 78 is operated to the stop position, the operator operates the reference height adjusting tool 76 to obtain the cutting unit 3, the transport device 4, and the cutting device 13 for the front wheel 1 (ground). The height of (rotary blade 14) can be arbitrarily changed.

When the cutting height control operating tool 78 is operated to the operating position (step S4), detection by the load sensor 79 is performed (step S5). In this case, the ascending side set value AU and the descending side set value AD, which is lower than the ascending side set value AU, are set in advance in the control device 100 with respect to the detected value A2 of the load sensor 79.
When the detection value A2 of the load sensor 79 is lower than the ascending side set value AU and higher than the descending side set value AD (step S6), the elevating cylinder 58 is stopped (step S7).

When the detection value A2 of the load sensor 79 becomes higher than the ascending side set value AU (step S6), it is determined that the load applied to the cutting device 13 (hydraulic motor 20) has increased, and the elevating cylinder 58 is extended and operated. The cutting unit 3, the transport device 4, and the cutting device 13 (rotary blade 14) are lifted with respect to the front wheel 1 (ground) (step S8).

After that, when the detection value A2 of the load sensor 79 decreases until it becomes lower than the ascending side set value AU (step S6), it is determined that the load applied to the cutting device 13 (hydraulic motor 20) has returned to an appropriate value. The elevating cylinder 58 is stopped (step S7).

When the detected value A2 of the load sensor 79 becomes lower than the lowering side set value AD (step S6), it is determined that the load applied to the cutting device 13 (hydraulic motor 20) has become smaller, and the elevating cylinder 58 contracts and operates. The cutting unit 3, the transport device 4, and the cutting device 13 (rotary blade 14) are lowered with respect to the front wheel 1 (ground) (step S11).

After that, when the detected value A2 of the load sensor 79 rises until it becomes higher than the lowering side set value AD (step S6), it is determined that the load applied to the cutting device 13 (hydraulic motor 20) has returned to an appropriate value. The elevating cylinder 58 is stopped (step S7).

When the elevating cylinder 58 contracts in steps S6 and S11, the cutting unit 3, the transport device 4, and the cutting device 13 (rotary blade 14) are in a state where the detected value A1 of the height sensor 77 is higher than the reference height K1. The lowering operation is allowed (steps S9 and S10).

When the elevating cylinder 58 contracts in steps S6 and S11, the elevating cylinder 58 stops when the detected value A1 of the height sensor 77 reaches the reference height K1 (step S7). As a result, the contraction operation of the elevating cylinder 58 beyond the reference height K1 is prevented. In this case, the operator can change the reference height K1 by operating the reference height adjuster 76.

(Structure of regulatory member that can regulate the contraction operation of the elevating cylinder)
As shown in FIGS. 29, 35, 41, the left and right regulating members 126 are provided. As shown in FIG. 36, the regulating member 126 has an inner portion 126a, an outer portion 126b, a contact portion 126c, a pin 126d, and a connection hole 126e.

In the regulating member 126, the flat plate-shaped outer portion 126b is connected to both sides of the channel-shaped inner portion 126a, and the U-shaped contact portion 126c is connected to the end portions of the inner portion 126a and the outer portion 126b. A pin 126d is connected to an intermediate portion of the outer portion 126b, and a connection hole 126e is opened at an end portion of the outer portion 126b opposite to the contact portion 126c.

As shown in FIGS. 29, 35, 37, 38, the connecting pin 129 is inserted into the connecting hole 126e of the regulating member 126 (outer portion 126b), and the regulating member 126 is supported by the connecting pin 129 so as to be swingable up and down. ing. The regulating member 126 is supported by the end portion 58f of the piston rod portion 58b of the elevating cylinder 58 so as to be swingable up and down via the connecting pin 129.

(Unregulated and regulated states of regulated members)
In the state shown in FIGS. 35, 37, 38, the regulating member 126 is swung upward around the connection pin 129, and the contact portion 126c of the regulating member 126 is separated upward from the piston rod portion 58b of the elevating cylinder 58. It is a state operated by the regulated state B1.

As shown in FIG. 39, the holding member 130 is fixed to the upper portion with respect to the regulating member 126. The holding member 130 is formed of an elastically deformable leaf spring, has an engaging hole 130a opened at an end portion, and a handle portion 130b provided at the end portion.

As shown in FIGS. 35, 37, and 38, after the regulating member 126 is lifted to the non-regulated state B1 and then operated, the holding member 130 is slightly elastically deformed while holding the handle portion 130b of the holding member 130 to form the regulating member 126. The pin 126d is inserted into the engagement hole 130a of the holding member 130. Thereby, the regulating member 126 can be held in the non-regulated state B1 by the holding member 130.

In a state where the regulating member 126 is held in the non-regulated state B1, the steering operation of the front wheel 1 described in the above-mentioned (configuration of the steering operation of the front wheel) is permitted, and the steering operation of the front wheel 1 is permitted, and the above-mentioned (cutting height control) is described. The expansion and contraction operation of the elevating cylinder 58 is allowed.

In the non-regulated state B1, the regulating member 126 is located above the cylinder portion 58a of the elevating cylinder 58 and extends laterally outward from the piston rod portion 58b of the elevating cylinder 58.

For example, when transporting a sugar cane harvester on a truck bed, or when storing a sugar cane harvester in a warehouse or the like, the following operations are performed.
As shown in FIGS. 39 and 40, the pin 126d is pulled out from the engagement hole 130a of the holding member 130 to the regulating member 126 while holding the handle portion 130b of the holding member 130 and elastically deforming the holding member 130. The regulating member 126 is swung downward so that the contact portion 126c of the regulating member 126 is abutted against the end portion 58e on the piston rod portion 58b side of the cylinder portion 58a of the elevating cylinder 58.

As a result, the regulating member 126 is attached over the end portion 58f of the piston rod portion 58b of the elevating cylinder 58 and the end portion 58e of the cylinder portion 58a, and is in a regulated state B2 capable of regulating the contraction operation of the elevating cylinder 58. Become.

(Arrangement of regulatory members)
As shown in FIGS. 1, 35, 41, left and right doors 7a for getting on and off are provided on the right and left portions of the driving unit 7 so as to be openable and closable around a fulcrum along the vertical direction of the front portion of the door 7a. ing. As shown in FIGS. 1, 2, and 3, left and right side mirrors 7b that can be retracted are provided on the upper right portion and the upper portion of the left portion of the driving unit 7. As shown in FIGS. Be prepared for.

As shown in FIGS. 35, 37, 38, the regulating member 126 in the non-regulated state B1 is arranged below the deck 131 and is located below the operating unit 7, and the regulating member 126 in the unregulated state B1 is located below. , Is arranged closer to the driving unit 7 than the outer lateral end of the deck 131.

As shown in FIGS. 39, 40, 41, the regulating member 126 in the regulated state B2 is arranged below the deck 131 and is located below the operating unit 7, and the regulating member 126 in the regulated state B2 is located below the deck. It is arranged closer to the driving unit 7 than the 131.

As shown in FIGS. 35 and 41, left and

right steps

132 and 133 for getting on and off the driving unit 7 are provided below the deck 131. The step 132 has a step frame 132a connected to the upper part of the front part of the driving unit 7 and the rear part of the deck 131, and a step portion 132b connected to the step frame 132a. Step 133 is connected to a guide frame 134 provided along the front-rear direction on the lateral side of the machine body.

Step 132 is arranged laterally outward with respect to the regulating member 126 in front view. The stepped portion 132b of the step 132 is arranged on the rear side with respect to the regulating member 126 in the side view, and the step frame 132a of the step 132 overlaps with the regulating member 126 in the regulated state B2 in the side view. The restricting member 126 in the unregulated state B1 is arranged between the deck 131 and the step frame 132a of the step 132 in front view and side view.

(First Different Form of Implementation of the Invention)
A plurality of

transmission chains

71, 81, 91 for transmitting power to the upper rotating bodies 31a to 36a and the lower rotating bodies 31b to 36b may be provided on the left side of the transport device 4.
According to this configuration, in the upper rotating bodies 31a to 35a, the bearing mechanism 115 is provided on the left side wall 22 of the transfer device 4, and the bearing mechanism 116 is provided on the right side wall 22 of the transfer device 4. In the lower rotating bodies 31b to 35b, the bearing

mechanisms

127 and 115 are provided on the left side wall 22 of the transfer device 4, and the bearing

mechanisms

128 and 116 are provided on the right side wall 22 of the transfer device 4.

(Second alternative form of carrying out the invention)
Bearing mechanism 127 may be adopted in a plurality or all of the lower rotating bodies 31b to 35b.
The bearing mechanism 128 may be adopted in a plurality or all of the lower rotating bodies 31b to 35b.

(Third alternative form of carrying out the invention)
In the bearing

mechanisms

128 and 116, like the bearing

mechanisms

127 and 115, the shaft members 121 to 125 are provided with the first spline portion (not shown), and the lower rotating bodies 31b to 35b (main body portion 25) are provided with the first spline portion. A boss portion (not shown) having a second spline portion (not shown) is provided, and the first spline portion of the shaft members 121 to 125 is a boss of the lower rotating bodies 31b to 35b (main body portion 25). It may be configured to be inserted into a portion (second spline portion).

(Fourth Different Embodiment of the Invention)
In the bearing mechanism 115, the shaft members 41 to 45 are detachably attached to the side wall 22 (support plate 28b of the rocking support member 28), and the holder 115b is attached to and detached from the upper rotating bodies 31a to 35a (main body portion 25). It may be attached if possible.

In the bearing mechanism 116, the shaft members 121 to 125 are detachably attached to the side wall 22 (support plate 28b of the swing support member 28) (support plate 119a of the support member 119), and the holder 116b is attached to the upper rotating body 31a. It may be detachably attached to ~ 35a (main body 25).

In the bearing mechanism 127, the shaft member 51 is detachably attached to the side wall 22 (support plate 119a of the support member 119), and the holder 127b is detachably attached to the lower rotating body 31b (main body portion 25). May be good.

In the bearing mechanism 128, the shaft member 121 is detachably attached to the side wall 22 (support plate 119a of the support member 119), and the holder 128b is detachably attached to the lower rotating body 31b (main body portion 25). May be good.

(Fifth alternative form of carrying out the invention)
In the shaft members 41 to 45 and the upper rotating bodies 31a to 35a, the first spline portions 41b to 45b of the shaft members 41 to 45 are formed in a female shape formed on the inner surface of the boss portion, and the upper rotating body 31a The second spline portion 25c of ~ 35a may be configured in a male shape.

In the shaft members 51 to 55 and the lower rotating bodies 31b to 35b, the

first spline portions

51b, 52c to 55c of the shaft members 51 to 55 are formed in a female shape formed on the inner surface of the boss portion, and are formed on the lower side. The second spline portion 25c of the rotating bodies 31b to 35b of the above may be configured in a male shape.

(Sixth Different Embodiment of the Invention)
The fall-off prevention member 28f of the swing support member 28 is formed in a narrow plate shape or a pin shape instead of a ring shape, with respect to the upper portion of the lateral end portion of the upper rotating bodies 31a to 35a (main body portion 25). It may be arranged so as to enter the inner peripheral side, or may be arranged on the outer peripheral side with respect to the lower portion of the lateral end portion of the upper rotating bodies 31a to 35a (main body portion 25).

(7th alternative embodiment of the invention)
The fall-off prevention member 119e of the support member 119 is formed in a narrow plate shape or a pin shape instead of a ring shape, and is inside the upper portion of the lateral end portion of the lower rotating bodies 31b to 35b (main body portion 25). It may be arranged so as to enter the peripheral side, or may be arranged on the outer peripheral side with respect to the lower portion of the lateral end portion of the lower rotating bodies 31b to 35b (main body portion 25).

(Eighth Different Embodiment of the Invention)
In the bearing

mechanisms

128 and 116, a nut (not shown) or a wing nut (not shown) may be used instead of the bolt 118.

(9th alternative embodiment of the invention)
When a load is applied to the cutting device 13 so that the rotary blade 14 is pushed backward by the crop as the machine advances, the drive case 15 tries to rotate counterclockwise in FIG. 13, and the rear part of the drive case 15 When the state of being displaced upward occurs, the horizontal frame 112 may be arranged so as to be in contact with the upper part of the rear part of the drive case 15 from above.
As a result, the state (load) in which the rear portion of the drive case 15 is displaced upward is received by the lateral frame 112 and prevented.

(10th alternative embodiment of the invention)
In the above-mentioned (9th alternative embodiment of the invention), the horizontal frame 112 is a portion above the rear portion of the right connecting portion 110 on the right side wall 72 and a left connecting portion 110 on the left side wall 72. It may be configured so as to be connected to the upper portion with respect to the rear portion.
The right support member 111 is connected to the rear portion of the lower surface portion of the right connecting portion 110 and the right side wall 72, and the left support member 111 is connected to the rear portion of the lower surface portion of the left connecting portion 110 and the left side wall. It may be configured so as to be connected to 72.

In the above configuration, the right end portion and the left end portion of the drive case 15 are attached to the upper surface portions of the left and right connecting portions 110, and the rear portions of the right end portion and the left end portion of the drive case 15 are the left and right connecting portions 110 and the horizontal frame. It is inserted between 112.

Bolts 114 are inserted over the rear of the right and left ends of the drive case 15, the lateral frame 112, and the rear of the left and right connecting portions 110, and laterally to the right and left ends of the drive case 15. The frame 112 and the left and right connecting portions 110 are jointly fastened and connected by bolts 114. The front portion of the right end portion and the front portion of the left end portion of the drive case 15 and the front portion of the left and right connecting portions 110 are connected by bolts 114.

(Eleventh alternative form of carrying out the invention)
A horizontal frame 112 (see FIG. 13) to which the front portion of the drive case 15 is abutted from above and a horizontal frame 112 to which the rear portion of the drive case 15 is abutted from below (the first alternative embodiment of the invention described above). (See) and both may be provided.

(12th alternative embodiment of the invention)
The outer screw 97 of the right divider device 10 may be configured to be switchable between the used state C1 and the retracted state C2, and the outer screw 97 of the left divider device 10 may be fixed to the used state C1.

The outer screw 97 of the left divider device 10 may be configured to be switchable between the used state C1 and the stored state C2, and the outer screw 97 of the right divider device 10 may be fixed to the used state C1.

(13th Alternative Form of Implementation of the Invention)
Instead of the mountable and removable support frame 102, a bendable linkage (not shown) may be connected over the rear of the upper part of the vertical frame 84 and the rear part of the upper part of the outer screw 97.

According to this configuration, the outer screw 97 is set to the used state C1 by fixing the link mechanism in the extended state, and the outer screw 97 is retracted by fixing the link mechanism in the bent state. It is set to the state C2.

(14th Different Embodiment of the Invention)
The support frame 102 may be configured to be attached over the lateral outer portion of the upper portion of the vertical frame 84 and the inner and outer portions of the upper portion of the outer screw 97.
The above-mentioned link mechanism (second alternative embodiment of the invention) may be configured to be attached over the lateral outer portion of the upper part of the vertical frame 84 and the inner / outer portion of the upper part of the outer screw 97.

(15th alternative embodiment of the invention)
In the divider device 10, the outer screw 97 may be configured to be switched to the retracted state C2 by moving in parallel toward the inner screw 96 while maintaining the tilted posture of the used state C1 in the front view. ..

(16th alternative embodiment of the invention)
When the side mirror 7b of the driving unit 7 is stored, the guide frame 134 becomes the left and right outermost part of the body other than the upper part of the outer screw 97, and the side mirror 7b of the driving unit 7 is stored. If left in use, the lateral outer end of the side mirror 7b of the driving unit 7 is configured to be the left and right outermost portion of the aircraft other than the upper part of the outer screw 97. May be good.
The lateral outer end portion of the deck 131 may be configured to be the left and right outermost portions of the portion other than the upper portion of the outer screw 97 in the airframe.

(17th alternative embodiment of the invention)
The elevating cylinder 58 may be set in a posture along the vertical direction so that the cylinder portion 58a is on the upper side and the piston rod portion 58b is on the lower side.

(18th Different Form of Implementation of the Invention)
The regulating member 126 is swingably supported by the end portion 58f of the piston rod portion 58b of the elevating cylinder 58 around the axis along the left-right direction, and is separated from the piston rod portion 58b of the elevating cylinder 58 forward or backward. It may be configured to be operated in the unregulated state B1.

(19th Alternative Form of Implementation of the Invention)
In a state where the step 132 is arranged laterally outward with respect to the regulating member 126, the step portion 132b of the step 132 may be configured to overlap the regulating member 126 in the regulated state B2 in a side view.

(20th Different Form of Implementation of the Invention)
In a state where the step 132 is arranged laterally outward with respect to the regulating member 126, the step portion 132b of the step 132 is configured to overlap the regulating member 126 in the non-regulated state B1 and the regulated state B2 in a side view. You may.

(21st alternative embodiment of the invention)
Instead of the left and right front wheels 1 and the left and right rear wheels 2, crawler-type left and right traveling devices (not shown) may be adopted.

In this configuration, the front part of the machine body (cutting unit 3 and the transport device 4) may be configured to be raised and lowered with respect to the traveling device with the rear part of the machine body as a fulcrum, and the machine body (cutting unit 3) may be operated with respect to the traveling device. The whole of the unit 3 and the transport device 4) may be configured to be raised and lowered in parallel.
A single elevating cylinder 58 and left and right traveling devices are connected via a link mechanism (not shown), and the machine body (cutting unit 3 and transport device 4) is elevated by the single elevating cylinder 58. It may be configured as follows.

The present invention can be applied to a sugar cane harvester.

1 Front wheel (traveling device)
2 Rear wheel (traveling device)
3 Cutting unit 4 Transport device 5 Separation device (post-processing device)
6 Conveyor (post-processing equipment)
7 Driving unit 10 Divider device 13 Cutting device 14 Rotary blade 15 Drive case 16 Drive shaft 22 Side wall 22a Opening 25a Side plate (horizontal side)
25c 2nd spline part 28c 1st opening (opening)
28d Second opening (opening) (void)
28f Fall-off prevention member 31a-35a Rotating body 31b-35b Rotating body 41-45 Shaft member 41b-45b First spline part 51-55 Shaft member 51b First spline part 52c-55c First spline part 58 Elevating cylinder 58a Cylinder part 58b Piston rod part

58f End part

58e End part 72 Side wall 83 Lower support frame 84 Vertical frame 96 Inner screw 97 Outer screw 102 Support frame 110 Connecting part 111 Support member 112 Horizontal frame 115 Bearing mechanism 115b Holder 115c Bearing 116 Bearing mechanism 116b Holder 116c Bearing 118 bolts (shaft connector)
119b First opening (opening)
119c Second opening (opening) (void)
119e Fall-off prevention member 121-125 Shaft member 126 Restriction member 127 Bearing mechanism 127b Holder 127c Bearing 128 Bearing mechanism 128b Holder 128c Bearing 130 Holding member 131 Deck 132 Step B1 Unregulated state B2 Restricted state CL Left and right center C1 Used state C2 Axial core P9 Axial core P10 Axial core P11 to P51 Axial core P12 to P52 Axial core

Claims

A cutting section with a cutting device that cuts the roots of crops in the field,
A transport device for transporting the crops cut by the cutting section toward the rear of the machine is provided.
The transport device includes left and right side walls, left and right bearing mechanisms supported by the side walls, and an upper rotating body rotatably supported around the axis along the left-right direction over the left and right bearing mechanisms. It has a lower rotating body that is rotatably supported around the shaft core along the left-right direction and is supported over the left and right bearing mechanisms, and the upper rotating body and the lower rotating body are oriented in opposite directions to each other. By being rotationally driven, the crop is configured to be transported while being sandwiched between the upper rotating body and the lower rotating body.
The bearing mechanism includes a shaft member detachably attached to one of the rotating body and the side wall, a holder detachably attached to the other of the rotating body and the side wall, and the shaft member. It has a bearing attached between it and the holder.
A sugar cane harvester in which the bearing mechanism is removable to the outside of the side wall through the opening of the side wall.
The holder is detachably attached to the side wall and
The sugar cane harvester according to claim 1, wherein the shaft member is detachably attached to the rotating body.
A first spline portion provided on the shaft member and a second spline portion provided on the rotating body are provided.
By integrally rotatably attaching the first spline portion to the second spline portion, the shaft member is attached to the rotating body.
The sugar cane harvester according to claim 2, wherein the shaft member is removed from the rotating body by removing the first spline portion from the second spline portion.
By connecting the shaft member to the lateral portion of the rotating body by a shaft connecting tool, the shaft member is attached to the rotating body.
The sugar cane harvester according to claim 2, wherein the shaft member is removed from the rotating body by disconnecting the shaft connector.
By changing the phase of the holder around the shaft member, the opening is formed so that a gap is formed between the holder and the opening.
The sugar cane harvester according to claim 4, wherein the shaft member and the rotating body can be connected to and disconnected from the opening by the shaft connecting tool from the outside through the gap.
6. Sugar cane harvester.
The fall-off prevention member is a ring-shaped member attached to the side wall so as to be located on the outer peripheral side of the bearing mechanism, and enters the inner peripheral side with respect to the lateral end portion of the outer peripheral portion of the rotating body. The sugar cane harvester according to claim 6, wherein the bearing mechanism is in contact with the lateral end portion of the outer peripheral portion of the rotating body from the inner peripheral side in a state where the bearing mechanism is removed from the side wall.
A cutting section having left and right side walls and having a cutting device for cutting the roots of crops in the field introduced between the left and right side walls as the aircraft progresses is provided.
The cutting device includes a drive case arranged between the left and right side walls, left and right drive shafts extending downward from the right and left portions of the drive case, and lower portions of the left and right drive shafts. It has left and right rotary blades that are supported by the drive shaft and are rotationally driven by the drive shaft. Configured to disconnect,
A horizontal frame connected over the left and right side walls is provided.
A sugar cane harvester in which the drive case is supported by the horizontal frame.
The right end of the drive case is connected to the right side wall, and the left end of the drive case is connected to the left side wall.
The sugar cane harvester according to claim 8, wherein the front portion of the drive case located on the front side of the drive shaft is mounted and supported on the horizontal frame.
The right end portion of the drive case is co-tightened and connected to the connecting portion provided on the right side wall and the right end portion of the horizontal frame.
The sugar cane harvester according to claim 9, wherein the left end portion of the drive case is co-tightened and connected to the connecting portion provided on the left side wall and the left end portion of the horizontal frame.
A right support member that supports a load applied to the connecting portion of the right side wall from the drive case is connected to the right side wall and the connecting portion of the right side wall.
10. The tenth aspect of the present invention, wherein the left support member for supporting the load applied to the connecting portion of the left side wall from the drive case is connected to the left side wall and the connecting portion of the left side wall. Sugar cane harvester.
It is equipped with a cutting section with left and right dividers to separate the crops to be cut and the crops to be left in the field.
The divider device has an inner screw and an outer screw that are rotationally driven around an axis along the vertical direction, and the outer screw is configured to be arranged laterally outward with respect to the inner screw. ,
In at least one of the left and right divider devices, the outer screw switches between a usage state in which the crop to be harvested and a crop to be left in the field are separated from each other and a storage state in which the outer screw is closer to the inner screw than the usage state in front view. A possible sugar cane harvester.
In at least one of the left and right divider devices, the lower portion of the outer screw is swingably supported around the axis along the front-rear direction.
The sugar cane harvester according to claim 12, wherein the outer screw can be switched between the used state and the stored state by swinging the operation.
In both the left and right divider devices, the outer screw can be switched between the used state and the retracted state.
The upper part of the outer screw of the left and right divider devices in the used state is the left and right outermost outer portions of the airframe when viewed from the front.
The upper part of the outer screw of the left and right divider devices in the retracted state is the center of the left and right of the cutting part in front view, rather than the left and right outermost parts of the body other than the upper part of the outer screw. The sugar cane harvester according to claim 12 or 13, which is in a state close to.
The cutting section is provided with a vertical frame extending in the vertical direction and a support frame that can be attached to and removed from the rear portion of the upper portion of the vertical frame and the rear portion of the upper portion of the outer screw.
The method according to any one of claims 12 to 14, wherein the outer screw is set to the used state by attaching the support frame, and can be switched to the retracted state by removing the support frame. Sugar cane harvester.
13. Sugar cane harvester.
Left and right lower support frames that support the lower parts of the left and right inner screws are provided in the lower right and lower left of the cutting portion.
The sugar cane harvester according to any one of claims 12 to 16, wherein the lower support frame is arranged in an inclined state located laterally outward toward the front side.
The left and right traveling devices that support the aircraft,
A cutting section with a cutting device that cuts the roots of crops in the field,
A transport device that transports the crops cut by the cutting section toward the rear of the machine, and
A post-treatment device connected to the rear part of the transport device and performing post-treatment of the crops transported by the transport device, and a post-treatment device.
An operating unit provided above the cutting unit and
It is provided with an elevating cylinder which is arranged below the driving unit in a posture along the vertical direction and is connected to the machine body and the left and right traveling devices.
The elevating cylinder has a cylinder portion and a piston rod portion, and the height of the cutting portion and the transport device is increased by lowering the machine body by contraction operation and raising the machine body by extension operation. Is configured to be modifiable and
A regulated state in which the contraction operation of the elevating cylinder can be regulated by being attached over the end portion of the piston rod portion opposite to the cylinder portion and the end portion of the cylinder portion on the piston rod portion side. A regulating member supported by the end portion of the piston rod portion so as to be swingable is provided over an unregulated state in which the elevating cylinder is allowed to expand and contract apart from the cylinder portion.
The regulating member is a sugar cane harvester located below the driving unit in the non-regulated state.
The elevating cylinder is provided so that the cylinder portion is on the lower side and the piston rod portion is on the upper side.
The restricting member is configured to be located above the cylinder portion in the non-regulated state and to extend from the piston rod portion toward the lateral outer side of the airframe.
The sugar cane harvester according to claim 18, further comprising a holding member capable of holding and releasing the regulated member in the non-regulated state.
The deck is provided so as to extend laterally outward from the driving unit.
The sugar cane harvester according to claim 18 or 19, wherein the restricting member is arranged below the deck.
The sugar cane according to any one of claims 18 to 20, which is provided on the lateral side of the restricting member so that the step for getting on and off the driving unit overlaps with the restricting member in a side view. Harvester.