KR102545558B1 - Threshing device for whole culm charging-type combine harvester and combine harvester - Google Patents

Abstract

The threshing device of the shear input combine is capable of opening and closing the threshing frame 14 that supports the barrel and the water net 18, and the opening 24 that faces the barrel 17 and the water net 18 to the horizontal outer side of the body It is provided with a closing and closing type side wall body 16, and the threshing frame 14 is provided with a frame portion 14A forming an opening 24, and the side wall body 16 has a support shaft 26 in the forward and backward direction. As a support point, it swings up and down across the lower closed position for closing the opening 24 and the upper open position for opening the opening 24, enabling the side wall body 16 to be held in the open position. A holding mechanism B is provided, and the holding mechanism B is disposed on the rear edge portion 14Aa of the frame portion 14A.

Description

Threshing device and combine of shear input combine {THRESHING DEVICE FOR WHOLE CULM CHARGING-TYPE COMBINE HARVESTER AND COMBINE HARVESTER}

The present invention relates to a threshing device of a shear throwing type combine, and a combine. The latter combine includes not only the former transfer-input type combine (hereinafter, also referred to as a 'normal type combine'), but also a self-removal type combine.

[1] A threshing frame supporting a barrel and a water net, and an opening and closing type side wall body that can open and close an opening that faces the barrel and the water net to the outer side of the body, and the side wall body is provided with a support shaft in the forward and backward direction As a threshing device of a dumping type combine configured to be capable of vertical swing across a downward closing position for closing the opening and an upward opening position for opening the opening as a support point, at the opening position of the side wall body (cover) There is a case in which a holding mechanism (gas spring) capable of holding is disposed at the front end of the lateral portion (left side portion) on the side of the lateral outer end side of the body in the threshing frame (see, for example, Patent Document 1).

[2] In a combine configured to transmit the power of the engine to the reaping unit through the relay transmission shaft, conventionally, the power of the engine is relayed from the tuyere shaft through a belt transmission mechanism for input as an endless rotation body for input. It is transmitted to the barrel input shaft as a transmission shaft, and from the barrel input shaft, it is configured so that power is transmitted to the input shaft of the reaping unit through the belt transmission mechanism for output as an endless rotating body for output, and the belt transmission mechanism for input provided to the barrel input shaft. The rotation body for input in was provided in the state located on the shaft end side rather than the rotation body for output in the belt transmission mechanism for output (for example, refer patent document 2).

Japanese Patent No. 4594793 (see JP 4594793 B2. or corresponding published publication JP 2006-311820 A) Japanese Unexamined Patent Publication No. 2013-153684 (JP 2013-153684 A)

[1] Background Art The problems corresponding to [1] are as follows.

The threshing device of the threshing combine type is a transmission system for distributing and supplying power from the engine to various drive devices such as barrels and rocking sorting mechanisms provided therein. In the side part (left part), the above-mentioned opening is arranged so as to bypass the front end part and the lower part part of the lateral part (left part). This makes it possible to easily perform, for example, maintenance of barrels and water nets using the opening, along with assembly and maintenance of the transmission system, from the transverse outer side of the body.

In the threshing device having such a configuration, when the holding mechanism (gas spring) is disposed at the front end of the horizontal side part (left side part) on the side of the horizontal outer end side of the body in the threshing frame, the front end part becomes complicatedly entangled do. Therefore, it becomes difficult to assemble and maintain the holding mechanism and the transmission system.

Therefore, a threshing device of a shear throwing type combine that can easily perform assembly and maintenance of a holding mechanism and a transmission system has been desired.

[2] The problems corresponding to background art [2] are as follows.

In the above conventional configuration, the belt transmission mechanism for input is positioned closer to the shaft end than the belt transmission mechanism for output. Since the belt transmission mechanism for an input applies a large driving load in order to transmit the power of an engine to each of a barrel and a reaping part, it has become a structure provided with multiple large transmission belts in a parallel state. On the other hand, the belt transmission mechanism for output transmits power only with a reaping part, and compared with the belt transmission mechanism for input, a drive load is small. In addition, since it is necessary to arrange these transmission mechanisms in a narrow area of the front part of the body, it is configured to transmit power with one small transmission belt.

The drive load of the reaping unit is small while good reaping work is being performed, but the drive load may temporarily become excessive due to transport clogging of crops or the like accompanying the reaping work. As a result, depending on work conditions, such a large drive load may be applied to the belt transmission mechanism for output, and there is a possibility that the frequency of maintenance work such as repair and replacement in the belt transmission mechanism for output may increase.

However, in the conventional configuration, since the output belt transmission mechanism is located on the inner side of the input belt transmission mechanism in the axial direction, in the case of performing the maintenance work as described above, each time the large input belt transmission mechanism is also used. There was a disadvantage that it had to be removed at the same time, which made it a cumbersome task.

Therefore, it has been desired to make it easy to perform the maintenance work in the power transmission mechanism to which power is transmitted to the reaping part through the endless rotational body for an output.

[1] The problem solving means corresponding to the problem [1] is as follows.

In the threshing device of the shear throwing type combine according to the present invention,

A threshing frame supporting the barrel and the water net, and an opening and closing type side wall body that can open and close an opening that faces the barrel and the water net to the outside of the body,

The threshing frame has a frame portion forming the opening,

The side wall body swings up and down between a lower closed position for closing the opening and an upper open position for opening the opening, using the support shaft in the longitudinal direction as a support point,

a holding mechanism enabling holding of the side wall body in the open position;

The holding mechanism is disposed at a rear edge portion of the frame portion.

According to this means, the holding mechanism is not the front edge portion of the frame portion in which the transmission system for rolling is arranged, such as a barrel or rocking sorting mechanism provided inside the threshing device, but the rear edge portion of the frame portion in which the transmission system is not arranged will be located in

That is, the state which disperse|distributed suitably the transmission system and the holding mechanism in the periphery of the opening in a threshing frame can be obtained. Thereby, generation|occurrence|production of the problem that a transmission system or a holding|maintenance mechanism is obstructed can be avoided, when maintenance etc. of a barrel using an opening and a water net are performed. In addition, it is possible to avoid occurrence of a problem that the holding mechanism is obstructed during assembly or maintenance of the transmission system or that the transmission system is obstructed during assembly or maintenance of the holding mechanism.

Therefore, assembly and maintenance of the transmission system and the holding mechanism can be easily performed from the transverse outer side of the body together with the maintenance of the barrel and the water net using the opening.

As one of the means for making the present invention more suitable,

The side wall body includes an inner wall plate adjacent to the water net in the closed position, an outer wall plate positioned at a distance from the outer side of the body of the inner wall plate, and a front end of the inner wall plate and a front end of the outer wall plate. a front wall plate spanning and a rear wall plate spanning the rear end of the inner wall plate and the rear end of the outer wall plate, so that a cross section in the closed position is formed in a rectangular shape;

The said side wall body equips the said rear wall plate with the attachment part for holding mechanisms.

According to this means, the side wall body, in its open position, has a rectangular longitudinal section when viewed from the left and right directions of the body. Thus, even if the position of the holding mechanism relative to the side wall is biased toward the rear end of the side wall, the posture of the side wall in the open position can be maintained in a good posture with little distortion.

In addition, if the rear wall plate provided with the attachment part for the holding mechanism spans the inner wall plate and the outer wall plate along the opening and closing direction of the side wall body, it has a strong drag force against the load in the opening and closing direction of the side wall body. Therefore, by holding the side wall body in the open position by the holding mechanism, even if the weight of the side wall body acts on the rear wall plate, deformation of the rear wall plate due to the weight can be avoided.

Therefore, in order to facilitate the assembly and maintenance of the transmission system and the holding mechanism, the holding mechanism can be satisfactorily held in the open position of the side wall body by the holding mechanism while arranging the holding mechanism at the rear edge portion of the frame portion. can

As one of the means for making the present invention more suitable,

The side wall body includes an upper connecting member spanning the front wall board and the rear wall board at an upper end of the side wall body and connecting the front wall board and the rear wall board, and the front wall board and the rear wall board at a lower end of the side wall body. A lower connecting member connecting the front wall plate and the rear wall plate is provided.

According to this means, the shape retention of the side wall body can be improved by the upper connecting member and the lower connecting member. In this way, the posture of the side wall body in the open position can be maintained in a favorable posture with less distortion.

Therefore, while arranging the holding mechanism at the rear edge portion of the frame portion, the side wall body can be more favorably held by the holding mechanism in the open position.

As one of the means for making the present invention more suitable,

The upper connecting member is connected to the upper end of the threshing frame through the support shaft.

According to this means, the upper connecting member which enhances the shape retention of the side wall body can be used both as a member connecting to the upper end of the threshing frame.

Therefore, while enabling the holding mechanism to hold the side wall body in the open position satisfactorily, it is possible to simplify the configuration and reduce the cost by combining the members.

As one of the means for making the present invention more suitable,

the side wall body includes a top plate spanning the front wall plate and the rear wall plate, and further spanning the outer wall plate and the upper connecting member;

The top plate is connected to the front wall plate, the rear wall plate, the outer wall plate, and the upper connecting member.

According to this means, the shape retention of the side wall body can be further enhanced by the top plate. In this way, the posture of the side wall body in the open position can be maintained in a favorable posture with less distortion.

Therefore, while arranging the holding mechanism at the rear edge portion of the frame portion, the side wall body can be more favorably held by the holding mechanism in the open position.

As one of the means for making the present invention more suitable,

The lower connecting member has an outer surface facing the lower end of the outer wall plate,

The lower linking member is disposed at end portions of the front wall board and the rear wall board on the side of the outer wall plate, so that the outer side faces are brought into surface contact with the lower ends of the outer wall boards.

According to this means, in the open position of the side wall body, the lower linking member supports and supports from below the lower end (loose end) of the outer wall plate, which is easily distorted by being separated from the rocking support point of the side wall body. In this way, the posture of the side wall body in the open position can be maintained in a favorable posture with less distortion.

Therefore, while arranging the holding mechanism at the rear edge portion of the frame portion, the side wall body can be more favorably held by the holding mechanism in the open position.

As one of the means for making the present invention more suitable,

A sealing member is provided to bring a side surface of the frame portion on the side wall side and a frame-shaped surface portion of the inner wall plate corresponding to the side surface into close contact with each other in the closed position of the side wall body.

According to this means, generation|occurrence|production of the problem that the grain obtained by the ?f machine process with a threshing apparatus leaks from the clearance gap between the side surface of a frame part and the frame-shaped surface part of an inner wall board can be prevented.

Therefore, it is possible to avoid a decrease in grain recovery efficiency due to the leakage.

As one of the means for making the present invention more suitable,

The inner wall plate is provided with an auxiliary member that spans the front and rear ends of the inner wall plate at its lower end,

The auxiliary member has a side surface forming a lower side surface portion corresponding to a lower side surface portion of the side surface of the frame-shaped surface portion.

According to this means, it is possible to effectively enhance the shape retention at the lower end (loose end) of the inner wall plate, which is easily distorted by being spaced apart from the rocking support point of the side wall body, by the auxiliary member. In this way, the posture of the side wall body in the open position can be maintained in a favorable posture with less distortion.

And, in that the side surface of the auxiliary member that enhances the shape retention at the lower end of the inner wall plate is used as the lower surface portion of the frame-shaped face portion, the side surface of the frame portion and the frame of the inner wall plate are in close contact via the seal member in the closed position of the side wall body. It is possible to maintain a good close contact state on the lower side with the shape face.

Therefore, it is possible to more favorably hold the side wall body in the open position by the holding mechanism, and also increase the grain collection efficiency due to leakage of the grain from the gap between the side surface of the frame portion and the frame-shaped face portion of the inner wall plate. Deterioration can be avoided more reliably.

As one of the means for making the present invention more suitable,

The side wall body has a guide portion that enters the lower part of the water net in the closed position,

The guide portion includes a guide surface extending to the inner wall plate in a state in which the amount of downward entry of the water net in the closed position increases as the downward direction increases, and the guide surface extends from the guide surface to the inner wall plate. It has a front face and a rear face, and is constituted in a box shape.

According to this means, grains etc. dropped from the water net can be guided to the left and right center side of the swing sorting mechanism arranged below the water net by the guide surface of the guide part. Accordingly, it is possible to prevent generation of poor sorting in the shaking sorting mechanism due to the concentration of grains and the like dropped from the water net to the left and right ends of the shaking sorting mechanism.

In addition, by configuring the guide portion in a box shape, the shape retention of the side wall body can be further enhanced. In this way, the posture of the side wall body in the open position can be maintained in a favorable posture with less distortion. As a result, the holding mechanism in the open position of the side wall body can be performed more favorably.

As one of the means for making the present invention more suitable,

The guide portion has a bottom surface extending from the guide surface to the inner wall plate and spanning the front surface and the rear surface, and is constituted in a box shape forming a closed space between the guide portion and the inner wall plate.

According to this means, the guide part can be configured in a box shape with higher shape retention, and the shape retention of the side wall body can be further increased. In this way, the posture of the side wall body in the open position can be maintained in a favorable posture with less distortion. As a result, the holding mechanism can more favorably hold the side wall body in the open position.

In addition, since the guide portion forms a closed space between the inner wall plate and the inner wall plate, it is possible to prevent grain culm debris and the like from falling down from the water net from entering between the inner wall plate and the guide portion and adhering to the inner wall plate and the guide portion. Thereby, the labor required when cleaning the inside of a threshing apparatus can be reduced.

As one of the means for making the present invention more suitable,

The holding mechanism is configured by placing a gas damper that extends along with the upward swing of the side wall body to the open position across the frame portion and the side wall body,

A connecting shaft connecting the piston rod of the gas damper to the frame portion or the side wall, and a swinging member swinging using the connecting shaft as a support point,

The rocking member is disposed between the frame portion and the gas damper, and is set to a length intermediate between the cylinder tube of the gas damper and the connecting shaft as the side wall reaches the open position, , and functions as a lowering preventing mechanism for preventing the lowering of the side wall body from the open position.

According to this means, the operating force required for swinging the side wall body to the open position can be reduced by the action of the gas damper. Thereby, the operability at the time of swinging the side wall body to the open position can be improved.

In addition, when the side wall reaches the open position, the rocking member located above the gas damper automatically enters between the cylinder tube of the gas damper and the connecting shaft, thereby preventing the gas damper from contracting and maintaining the open position of the side wall. prevent descent from As a result, even if a gas leak occurs in the gas damper, the occurrence of a problem that the side wall unpredictably descends from the open position due to the gas leak does not require a dedicated operation to prevent the occurrence of the problem, You can definitely stop it.

As one of the means for making the present invention more suitable,

a locking mechanism enabling fixed holding of the side wall body in the closed position;

The locking mechanism is constituted by an engaging member provided at a lower edge portion of the frame portion and an engaging member provided at a lower end portion of the side wall body.

According to this means, the locking mechanism can be made to act on the lower end portion of the side wall body, which is likely to be separated from the frame portion by being separated from the rocking fulcrum of the side wall body.

Therefore, it is possible to satisfactorily secure and hold the side wall body at the closed position by the locking mechanism.

As one of the means for making the present invention more suitable,

The frame portion includes a position adjusting mechanism that enables position adjustment in the transverse direction of the body of the engaged coupler.

According to this means, in the opening and closing direction of the side wall due to manufacturing errors of the threshing frame or the side wall, when a deviation occurs between the closing position of the side wall and the fixing position of the side wall by the lock mechanism, the position is misaligned can be absorbed by the positioning mechanism. Thereby, regardless of manufacturing errors of the threshing frame or the side wall body, the closing position of the side wall body and the fixing position of the side wall body by the locking mechanism can be matched.

Therefore, the fixed holding at the closed position of the side wall body by the locking mechanism can be performed appropriately, without causing the fall of productivity resulting from the high precision required for manufacture of a threshing frame and a side wall body.

As one of the means for making the present invention more suitable,

The frame portion includes a first member fixed to the lower edge portion and a second member supporting the gripped coupler,

On one side of the first member and the second member, two long holes are formed in the transverse direction of the body, and on the other side of the first member and the second member, one of the two long holes is formed. A connection portion enabling bolt connection of the first member and the second member using a long hole, and a protrusion for engaging and inserting into the other long hole so as to be movable in the transverse direction of the aircraft, so that the two long holes are connected. and the connecting portion and the protrusion constitute the position adjusting mechanism.

According to this means, the first member and the second member are temporarily fixed with bolts using one long hole and the connecting portion, and furthermore, the second member relative to the first member is engaged by inserting the protrusion into the other long hole. It is possible to prevent rocking displacement of the second member relative to the first member while allowing movement of the body of the body in the lateral direction. That is, it is possible to prevent rotation of the second member with respect to the first member reliably while reducing the number of bolt connection points between the first member and the second member. This makes it possible to easily adjust the position of the engaged coupler in the transverse direction of the body. In addition, the locked coupler can be easily fixed at an appropriate position by connecting the first member and the second member with bolts by principally fastening the temporarily fixed bolt after adjusting the position of the engaged coupler.

Therefore, the position adjustment and fixation of the engaged coupler by the position adjustment mechanism can be performed simply and appropriately.

[2] The problem solving means corresponding to the problem [2] is as follows.

The characteristic configuration of the combine according to the present invention is,

A relay transmission shaft through which engine power is transmitted is provided,

The relay transmission shaft is provided with an input rotation body through which the power of the engine is input through an endless rotation body for input, and a reaping output rotation body that transmits the input power to the harvesting unit through an endless rotation body for output,

The above-mentioned reaping output rotary body is provided at the outer end side of the relay transmission shaft rather than the above-mentioned input rotary body.

According to the present invention, since the reaping output rotation body is provided on the shaft end side of the relay transmission shaft rather than the input rotation body, the output endless rotation body is on the outer end side of the relay transmission shaft than the input endless rotation body, that is, on the outer side of the body. It is located in a place facing the .

As a result, when maintenance work is performed on the endless rotational body for output to which power is transmitted to the reaping unit, only the endless rotational body for output can be removed without any hassle while the endless rotational body for input is attached without being removed. there is.

Therefore, it became possible to make it easy to perform the maintenance work in the transmission mechanism in which power is transmitted to the reaping part through the endless rotational body for an output.

In this invention, it is suitable if the said reaping output rotation body and the said input rotation body are integrally formed by one electric rotation body.

According to this configuration, since the reaping output rotating body and the input rotating body are integrally formed by one electric rotating body, compared to the case where the reaping output rotating body and the input rotating body are separately created as separate bodies, production The effort is reduced, and the assembly work for the relay transmission shaft is also simplified, so that cost reduction can be achieved.

In the present invention, the relay transmission shaft is rotatably built inside the tubular case,

The transmission rotating body is integrally rotatably installed at an end of a shaft protruding outward from the tubular case in the relay transmission shaft,

A concave inlet portion that enters the electric rotating body concavely along the axial direction is formed,

It is preferable if the outer end of the tubular case is provided in a state entering the concave portion.

According to this configuration, the rotational rotation body is attached to the shaft end of the relay transmission shaft protruding outward from the tubular case. The outer end of the tubular case enters the concave portion formed in a state where it is recessed into the rotating body along the axial direction, and the rotating body covers the end side of the tubular case with the rotating body, so that the rotating body is attached to the tubular case. is located against.

As a result, the transmission rotating body installed at the shaft end of the relay transmission shaft is located in a state of overlapping with respect to the relay transmission shaft along the axis direction, and the transmission structure along the axis direction is compact by the amount overlapped in the radial direction. can cause anger.

In the present invention, the transmission rotating body has a wide multi-type belt winding section in which a plurality of transmission belts are wound in an arrayed state, and is located inside the multi-type belt winding section. It is suitable if the concave portion is formed in.

According to this configuration, the power rotation body is provided with a wide multiple belt winding section in which a plurality of power transmission belts are wound in a state in which they are arranged. That is, since the endless rotational body for input transmits the power transmitted to other devices, for example, the barrel of a threshing device, in addition to the power transmitted to the reaping unit, so as to withstand a large driving load, the endless rotational body for input It is provided with a plurality of transmission belts arranged in the horizontal direction as a rotating body.

In this way, by forming a concave portion inside a wide multi-type belt winding portion wound in a state in which a plurality of transmission belts are arranged, the depth of entry of the concave portion is increased, thereby further improving the transmission structure along the axial center direction. Compactness can be achieved.

In the present invention, an electric input state in which tension is applied to the endless rotary body for output and a transmission disconnected state in which tension is released at a location on the outer end side of the reaping output rotary body at the shaft end of the relay transmission shaft. It is suitable if the switchable tension clutch mechanism is supported.

According to this configuration, since the tension clutch mechanism is supported at a location on the outer end side of the reaping output rotating body at the shaft end of the relay transmission shaft, when performing maintenance work, it is easily performed from the outside to the end side location of the relay transmission shaft. The provided tension clutch mechanism can be removed.

In addition, in the case of carrying out maintenance work for the endless rotating body for output, by removing the tension clutch mechanism, the tensioning of the endless rotating body for output is released, and the endless rotating body for output can be removed as it is, and the work can be easily performed. can do

In the present invention, it is preferable that the tension clutch mechanism includes a tension arm that is externally clamped and supported rotatably by the relay transmission shaft, and a tension wheel that is supported by the tension arm and acts on the endless rotational body for output. .

According to this configuration, since the tension arm for supporting the tension ring body is supported so as to be able to rotate using the relay transmission shaft, for example, without causing complexity of the structure such as providing a dedicated support member to the fixed portion, simple The tension clutch mechanism can be supported by one support structure.

In the present invention, a pressing mechanism for rotating and pressurizing the tension arm in a direction in which the tension wheel body is separated from the endless rotation body for output;

Based on the operation of the clutch lever provided in the driving unit, the tension wheel resists the pressing force of the pressing mechanism, and the tension wheel acts on the endless rotating body for output to give a tension force. A linkage operating mechanism for rotating the tension arm is provided become,

The tension wheel body is supported at a location lower than the relay transmission shaft in the tension arm,

The pressing mechanism is connected to a portion above the relay transmission shaft in the tension arm,

It is preferable if the linkage operation mechanism is connected to a position lower than the relay transmission shaft in the tension arm.

According to this configuration, if the clutch lever provided in the driving unit is not operated, the tension wheel body will be in a state where it is spaced apart to the continuously rotating body for output by the pressing force of the pressing mechanism, and power transmission to the reaping unit is cut off. On the other hand, when the clutch lever is operated, the tension wheel body acts on the endless rotational body for output by operation of the linkage operation mechanism to give a tension force, and power transmission to the harvesting unit is performed.

When the clutch lever is not operated and the endless rotation body for output is rotationally driven, the tension wheel is reliably separated from the endless rotation body for output by the pressing force of the pressing mechanism, so that the tension wheel body approaches the continuously variable rotation body for output, It can be driven smoothly in a state where there is no disadvantage such as unstable vibration of the tension arm by repeatedly contacting or separating from the endless rotating body for output.

In addition, the tension wheel body is supported at a location lower than the relay transmission shaft in the tension arm, and a pressurizing mechanism is connected to a location higher than the relay transmission shaft in the tension arm, and further, in the tension arm, a location lower than the relay transmission shaft Since the linked operation mechanism is connected, by appropriately allocating and arranging the tension wheel body, the pressure mechanism, and the linkage operation mechanism on both the upper and lower sides of the relay transmission shaft, the clutch connection disconnection operation can be appropriately performed, while the tension clutch mechanism It becomes possible to accommodate in a compact shape by making the lateral width small.

In this invention, in the said relay transmission shaft, it is suitable if the input power is distributed with the power transmitted to the power transmitted to the said reaping part, and the barrel.

According to this configuration, the power input to the relay transmission shaft through the input rotating body by the endless rotating body for input is transmitted to the reaping unit through the endless rotating body for output from the reaping output rotating body, and further, that Power is transmitted from the relay transmission shaft to the barrel through the transmission mechanism for the barrel. In this way, power is distributed in the relay transmission shaft and is transmitted to the barrel and the reaping unit, respectively. In addition, in the present invention, a relay transmission shaft 171 through which engine power is transmitted is provided, and the engine power is input to the relay transmission shaft 171 through an endless rotation body 170 for input. An input rotating body 235a and a harvesting output rotating body 235b that transmits input power to the harvesting unit through the endless rotating body 173 for output are provided, and the harvesting output rotating body 235b is provided with the input It is provided on the outer end side of the relay transmission shaft 171 than the rotation body 235a, and at a location on the outer end side of the reaping output rotation body 235b at the shaft end of the relay transmission shaft 171, the above A tension clutch mechanism 240 capable of switching between an electric input state in which tension is applied to the endless rotating body 173 for output and a transmission disconnection state in which tension is released is supported, and the tension clutch mechanism 240 is connected to the relay transmission shaft Equipped with a tension arm 242 rotatably externally fitted and supported by 171, and a tension wheel 243 supported by the tension arm 242 and acting on the endless rotational body 173 for output, the tension An arm 242 is provided in a state adjacent to the outer end side of the relay transmission shaft 171 with respect to the reaping output rotating body 235b, and the relay transmission shaft 171 is moved from the tension arm 242. A support shaft is provided in a state extending to the side opposite to the outer end side, and the tension wheel 243 is rotatably supported on the support shaft.

Other characteristic configurations and advantageous effects exerted therefrom will become clear upon reading the following description while referring to the accompanying drawings.

Fig. 1 is a diagram showing a first embodiment of the present invention (the same applies to Fig. 12 hereinafter), and is a left side view of a shunt throwing type combine.
Fig. 2 is a plan view of a blade throwing type combine.
3 : is a longitudinal left side view which shows the internal structure of a threshing apparatus.
4 : is a longitudinal left side view of the threshing apparatus which shows the structure of the left part in a threshing apparatus.
Fig. 5 is a longitudinal left side view of a main part showing a structure related to an openable side wall body in a threshing device.
6 : is a left side view of the threshing apparatus which shows the structure of the left part in a threshing apparatus.
Fig. 7 is a longitudinal rear view of a main part showing the configuration of the side wall body of the opening and closing type in the threshing device.
Fig. 8 is an exploded perspective view showing the configuration of a side wall body of a retractable type.
Fig. 9 is an enlarged longitudinal rear view of a main part showing a seal structure and the like in a retractable side wall body.
Fig. 10 is an enlarged longitudinal rear view (a) and an enlarged perspective view (b) of main parts showing the configuration of a holding mechanism for holding a retractable side wall body in an open position.
Fig. 11 is an enlarged longitudinal rear view of a main part showing the configuration of a locking mechanism for holding a retractable side wall body in a closed position.
Fig. 12 is a transverse plan view of main parts showing the structure of the position adjusting mechanism.
13 : is a figure which shows the combine by 2nd Embodiment (it is the same to FIG. 32 hereinafter), and is an overall side view of a normal type (pile throwing type) combine as an example of a combine.
Fig. 14 is an overall plan view of a normal type combine.
15 is a plan view of a driving unit.
Fig. 16 is a side view of the motor unit.
Fig. 17 is a plan view showing a fan rotation switching mechanism.
Fig. 18 is an explanatory view of the operation of the fan rotation switching mechanism.
Fig. 19 is an explanatory view of the operation of the fan rotation switching mechanism.
Fig. 20 is a perspective view of a changeover operation lever.
21 is a transmission system diagram.
22 : is a side view which shows the reaping clutch.
Fig. 23 is a front view showing the reaping clutch.
24 : is a side view which shows the reaping clutch.
Fig. 25 is a longitudinal front view showing the reaping clutch.
Fig. 26 is a side view showing a side panel support structure.
Fig. 27 is a longitudinal front view showing a side panel support structure.
Fig. 28 is an exploded perspective view of the panel support frame.
Fig. 29 is a side view showing a clutch operation structure.
Fig. 30 is a front view showing a clutch operating structure.
31 is a longitudinal side view of the support portion of the main shift lever.
32 is a longitudinal front view of the support portion of the main shift lever.

[First Embodiment]

Hereinafter, the first embodiment will be described with reference to FIGS. 1 to 12 .

As shown in FIGS. 1 and 2 , the shear throwing type (normal type) combine exemplified in this embodiment includes a pair of left and right crawlers 2, a boarding driver 3, It is provided with the harvesting conveyance device 4, the threshing device 5, the grain tank 6, etc., and is comprised by the grain tank specification of a crawler traveling type.

In addition, the shear throwing type combine may be configured as a wheel travel type equipped with a pair of left and right front wheels and a pair of left and right rear wheels instead of the pair of left and right crawlers 2 as a traveling device. Moreover, you may comprise with the bag filling specification provided with the bag filling device instead of the grain tank 6. Further, it may be configured with a cabin specification including a cabin forming a space for boarding and driving.

As shown in FIGS. 1 and 2, the harvesting conveying device 4 includes left and right dividers 7, rotary reels 8, barricade-type cutting mechanisms 9, screw conveying augers 10, and It is equipped with the feeder 11 etc. of a raking conveyance type. The dividers 7 on either side are arranged at both left and right ends of the front end of the reaping conveying device 4 . And along with the running of the machine, the unreaped grain stems in front of the machine are selected and divided into grain stems for harvesting and non-harvesting grains. The rotating reel 8 is disposed above the front portion of the reaping conveying device 4 . Then, along with the running of the body, the tip side of the grain culm to be harvested is raked backward. The cutting mechanism 9 is arranged at the bottom of the reaping conveying device 4 . Then, along with the running of the machine, the bottom side of the grain culm to be harvested is cut. The auger 10 is disposed behind the rotary reel 8 and the cutting mechanism 9 . Then, the grain stems to be harvested (hereinafter referred to as "reaped grain stems") after cutting sent by scraping by the rotary reel 8 and cutting by the cutting mechanism 9 are scraped to a predetermined position in the left-right direction and conveyed and is sent from the predetermined position to the communication location of the feeder 11 on the rear side. The feeder 11 extends from a communication location with the auger 10 to a communication location with the threshing device 5 in a backward rising posture. And the harvested grain stalk sent out by the auger 10 is supplied and conveyed toward the threshing device 5.

The reaping conveying device 4 moves up and down with the feeder drive shaft 12 in the left and right direction provided at the conveying end of the feeder 11 as a fulcrum. The raising and lowering drive of the reaping conveying device 4 is performed by the expansion and contraction operation of the hydraulic lift cylinder 13 installed over the body frame 1 and the feeder 11 .

As shown in FIGS. 1-4, the threshing apparatus 5 is arrange|positioned in the left half of the body frame 1. Then, the threshing frame 14 connected to the gas frame 1, the openable upper cover body 15, the openable side wall body 16, the bar-type barrel 17, a substantially U-shape when viewed from the front and rear directions a water net 18, a rocking sorting mechanism 19, a tuyere 20, a first water recovery unit 21, a second water recovery unit 22, and a shredded discharge mechanism 23, and the like.

As shown in Figs. 3 to 7, the threshing frame 14 supports an upper cover body 15, a side wall body 16, a barrel 17, a water net 18 and the like by its upper half. . Further, the swing sorting mechanism 19, the tuyere 20, the shredded discharge mechanism 23, and the like are supported by the lower half thereof. In the upper half, a left end portion located on the left outer end side of the body is provided with a frame portion 14A having a rectangular shape when viewed from the side, forming an opening 24 for maintenance. The opening 24 is formed in a rectangular shape when viewed from the side facing the barrel 17 and the water net 18 to the left outer side of the body. And the front-back length and top-down length are set to the length which makes substantially the whole of the water net 18 face the left-left side of a body|substrate.

The upper cover body 15 has its left end connected to the left upper end of the threshing frame 14 via five hinges 25, whereby the closed position covering the top of the barrel 17 and the barrel ( 17) swings up and down across the open position to open the upper part. That is, the upper part of the barrel 17 is covered so that opening and closing is possible.

The side wall body 16 has four support shafts 26 at its upper end at predetermined intervals in the front-rear direction in a state in which their shaft centers coincide. Then, using the support shaft 26 as a fulcrum, it swings up and down between a lower closed position for closing the opening 24 and an upper open position for opening the opening 24 . Thereby, the opening 24 is blocked so that opening and closing is possible.

The barrel 17 rotates in the right direction in a front view centering on the barrel shaft 17A of the front-back direction. And by this rotation, the scraping part 17B of the front end sends the harvested grain stem from the feeder 11 backward. Moreover, 17 C of rear-side shaving processing parts perform a shaping process with respect to the harvested grain stem.

The water net 18 is equipped in the state which covers 17 C of air processing parts of the barrel 17 from below. And sorting objects, such as grains obtained by the ?f machine process by rotation of the barrel 17, are dropped. On the other hand, the long grain culm that has not dropped from the water net 18 is guided to the rear shredder discharge mechanism 23. In addition, the water net 18 is a front-and-back three-division structure provided with the front water net 18A, the middle water net 18B, and the rear water net 18C, and they are constituted by a six-division structure capable of being divided into two left and right. Thereby, attachment and detachment of the water net 18 from the above-mentioned opening 24 in the assembled state of the barrel 17 is made possible.

The rocking sorting mechanism 19 is located below the water net 18 and is sieved and rocked in the front-rear direction by the operation of an eccentric cam-type drive unit 19A provided below the rear end thereof. Thereby, a sieve processing is performed on the objects to be sorted down from the water net 18. Then, by this sieve screening process, grains having a large specific gravity among the objects to be screened are dropped. In addition, grain culm waste and the like having a small specific gravity are transferred to the shredder discharge mechanism 23 at the rear.

The tuyere 20 is located below the front of the swing sorting mechanism 19 and rotates around the left side when viewed from the left side with the tuyere shaft 20A in the left and right direction as the center. Thereby, a sorting wind directed toward the swinging sorting mechanism 19 is generated, and the wind sorting process is performed on the sorting object. And leakage from the shaking sorting mechanism 19 of fine grain culm scraps etc. is suppressed by this air sorting process. In addition, fine grain culm scraps and the like dropped from the rocking sorting mechanism 19 are transported to the rear shredder discharge mechanism 23 by wind power.

The first product recovery unit 21 and the second product recovery unit 22 are disposed below the rocking sorting mechanism 19 in a state in which they are arranged back and forth in that order. The first product recovery unit 21 guides the single grains falling down as the first product from the front side of the rocking sorting mechanism 19 to the first screw 27 provided at the bottom. The second product collection unit 22 guides the grains and bifurcated grains with branch diameters falling as the second product from the rear side of the rocking sorting mechanism 19 to the second screw 28 provided at the bottom thereof.

The No. 1 screw 27 feeds and conveys a single grain with the screw conveyance-type lifting conveyor 29 connected to the right end. The lifting conveyor 29 lifts a single grain and supplies it to the adjacent grain tank 6. The No. 2 screw 28 supplies and conveys grains and bifurcated particles with branch diameters to the No. 2 reduction mechanism 30 connected to its right end. The second reduction mechanism 30 performs a degassing process with respect to grains and bifurcated particles with branch diameters from the second screw 28. Then, the grains and bifurcated grains after the ?f stage treatment are reduced and conveyed to the sorting start end of the shaking sorting mechanism 19 as sorting objects.

The shredded discharge mechanism 23 is connected to the rear end of the threshing frame 14 . And, by a plurality of fixed blades 31 provided therein and a plurality of rotating blades 33 integrally rotated with the left-right rotating shaft 32, etc., the culling grain culm after the ?fing process and the long grain stem shavings after the sorting process The back is shredded and discharged out of the plane.

As shown in FIG. 1 and FIG. 2, the grain tank 6 is arrange|positioned in the right half part of the body frame 1 with the boarding driver 3. And the conveyance end part of the lifting conveyor 29 is connected to the upper left part in communication. Thereby, the single grain from the lifting conveyor 29 is stored. Moreover, it is equipped with the screw conveyance type grain discharge part 6A which enables discharge to the outside of the single grain stored in the inside.

As shown in FIG. 4 and FIG. 6, the threshing frame 14 supports the tuyere shaft 20A rotatably at the front end part of the lower half. Moreover, in the front end part of the upper half, together with the feeder drive shaft 12 of the reaping conveyance apparatus 4, the input shaft 35 for barrels is rotatably supported by the posture of the left-right direction. Then, the barrel 17 and the rocking sorting mechanism 19 equipped with the feeder drive shaft 12 and the threshing device 5 with engine power via the tuyere shaft 20A on the left side located on the left outer end side of the body. ) and the like, the transmission system A is arranged.

The transmission system A is a belt-type first transmission mechanism 36 that rolls from the tuyere shaft 20A to the input shaft 35 for the barrel, and a belt type that rolls from the input shaft 35 for the barrel to the feeder drive shaft 12 2nd transmission mechanism 37 of tuyere shaft 20A to the 1st screw 27 and 2nd screw 28, and the 3rd transmission mechanism 38 of the belt type which rotates from the 2nd screw 28 A belt-type fourth transmission mechanism 39 and a third transmission mechanism 38 that are driven by the driving unit 19A of the sorting mechanism 19 and driven by the rotating shaft 32 of the shredder discharge mechanism 23 are belt-type first. 5 transmission mechanism 40 is provided. And among these, the 1st transmission mechanism 36 and the 2nd transmission mechanism 37 are arrange|positioned at the front end part of the left part in the threshing frame 14. Moreover, the 3rd transmission mechanism 38, the 4th transmission mechanism 39, and the 5th transmission mechanism 40 are arrange|positioned at the lower half part of the left side part in the threshing frame 14. Thereby, electric transmission system A is arrange|positioned in the left part of the threshing frame 14 in the L-shape seen from the side which spans the front part and the lower part of the left part, and is comprised so that the above-mentioned opening 24 may be bypassed. As a result, along with assembly and maintenance of each transmission mechanism 36 to 40 in the transmission system A, maintenance such as cleaning of the barrel 17 and the water net 18 using the opening 24 and the water net 18 can be easily attached or detached from the outer left side of the body.

The threshing apparatus 5 is equipped with the resin-made 1st cover body 41, the 2nd cover body 42, and the 3rd cover body 43 which cover the transmission system A so that attachment or detachment is possible. The 1st cover body 41 is located in the front part of the upper half in the left part of the threshing frame 14, and the transmission location with respect to the input shaft 35 for barrels in the transmission system A, the feeder drive shaft 12, etc. is covering The 2nd cover body 42 is located in the front half part of the lower half in the left part of the threshing frame 14, and covers the transmission location with respect to the tuyere 20 in the transmission system A, the No. 1 screw 27, etc. . The 3rd cover body 43 is located in the latter part of the lower half in the left part of the threshing frame 14, and the driving part 19A of the rocking sorting mechanism 19 in the transmission system A and the second screw 28 It covers the power transmission part for the back.

As shown in FIGS. 4-6, the threshing apparatus 5 is equipped with the gas damper 44 as a holding mechanism B which enables holding of the side wall body 16 in an open position. And this gas damper 44 is arrange|positioned at the rear edge part 14Aa of the frame part 14A which forms the opening 24, and it acts on the rear end part of the side wall body 16.

That is, the gas damper 44 is disposed not at the front edge portion 14Ab of the frame portion 14A adjacent to the transmission system A, but at the rear edge portion 14Aa of the frame portion spaced apart from the transmission system A, A and the gas damper 44 are suitably distributed in the periphery of the opening 24 in the threshing frame 14. As a result, when performing maintenance such as cleaning of the barrel 17 and the water net 18 using the opening 24 or attaching and detaching the water net 18, the problem that the transmission system A and the gas damper 44 are obstructed occurrence can be avoided. In addition, it is possible to avoid the occurrence of a problem that the gas damper 44 is obstructed when assembly or maintenance of the transmission system A is performed, or the transmission system A is obstructed when the assembly or maintenance of the gas damper 44 is performed. there is.

As shown in Figs. 4 to 10, the side wall body 16 is located on the left outer side of the rectangular inner wall plate 45 and the inner wall plate 45 when viewed from the side adjacent to the water net 18 in its closed position. The rectangular outer wall plate 46, the front end of the inner wall plate 45 and the front wall plate 47 spanning the front end of the outer wall plate 46 when viewed from the side spaced apart, and the inner wall plate 45 A rear wall plate 48 and the like are provided that spans the rear end and the rear end of the outer wall plate 46. Then, the cross section at the closed position is formed in a rectangular shape by the wall plates 45 to 48. In addition, the rear wall plate 48 spanning the inner wall plate 45 and the outer wall plate 46 along the opening and closing direction of the side wall body 16 is provided with an attachment portion 16A for a gas damper.

With the above configuration, the side wall body 16, in its open position, has a rectangular longitudinal section when viewed from the left and right directions of the body. As a result, even if the action position of the gas damper 44 relative to the side wall 16 is biased towards the rear end of the side wall 16, the posture of the side wall 16 in the open position is a good posture with little distortion. can keep

In addition, the rear wall plate 48, on which the gas damper 44 acts, crosses the inner wall plate 45 and the outer wall plate 46 along the opening and closing direction of the side wall body 16, thereby opening and closing the side wall body 16 in the opening and closing direction. It has strong drag against the load of Therefore, by holding the side wall 16 in the open position with the gas damper 44, even if the weight of the side wall 16 acts on the rear wall plate 48, the weight causes the rear wall plate 48 to deform. can avoid

As shown in Figs. 7 to 9, the inner wall plate 45 of the side wall body 16 extends from the four sides to the outer wall plate side in an endless band along the four sides in order to increase its shape retention and strength. 45 A of wall parts are provided. To this peripheral wall portion 45A, a front wall plate 47 and a rear wall plate 48 welded to the outer wall plate 46 are connected by bolts.

As shown in Figs. 5 to 10, the side wall body 16 is formed by the front wall plate 47 and the rear wall plate 48 across the front wall plate 47 and the rear wall plate 48 at the upper end of the side wall body 16. The upper connecting member 49 connecting the and the lower connecting member connecting the front wall plate 47 and the rear wall plate 48 across the front wall plate 47 and the rear wall plate 48 at the lower end of the side wall body 16 ( 50) is provided. The upper linking member 49 and the lower linking member 50 form a substantially horizontal U-shape in the front-back direction so that they themselves have high shape retention and strength. In addition, the side wall body 16 includes a top plate 51 spanning the front wall plate 47 and the rear wall plate 48 and also spanning the outer wall plate 46 and the upper connecting member 49 . The top plate 51 is connected to the outer wall plate 46 by integrally forming the outer wall plate 46 . The front wall plate 47, the rear wall plate 48, and the upper connecting member 49 are connected by welding.

Thus, the shape retention of the side wall body 16 can be effectively improved, and the posture of the side wall body 16 in the open position can be maintained in a good posture with less distortion.

As shown in Figs. 7, 8, 10 and 11, the lower connecting member 50 extends downward from the lower ends of the front and rear wall plates 47 and 48 at the lower ends 46A of the outer wall plates 46. It is provided with an outer surface 50A facing the . Then, the lower linking member 50 is disposed at the outer wall plate-side end of the front wall plate 47 and the rear wall plate 48 so that the outer surface 50A of the lower linking member 50 is connected to the outer wall plate 46. It is brought into surface contact with the lower end 46A of the .

As a result, in the open position of the side wall body 16, the lower end (loose end) 46A of the outer wall plate 46, which tends to cause distortion due to being separated from the swing support point of the side wall body 16, is connected to the lower side. The member 50 supports it by supporting it from below. As a result, the posture of the side wall body 16 in the open position can be maintained in a favorable posture with less distortion.

As shown in Figs. 7, 8 and 10, the upper connecting member 49 of the side wall body 16 has four brackets 52 in the groove-shaped concave portion 49A at predetermined intervals in the front-back direction. is being welded. Each bracket 52 is formed in a substantially U-shape supporting both ends of a support shaft 26 sandwiched inside by a boss 53 so that relative rotation is possible. Each boss 53 has its outer periphery welded to one end of the L-shaped coupling member 54. Each connecting member 54 constitutes the other end of the bolt connection portion with the threshing frame 14. The threshing frame 14 is provided with an extension 14B extending from the upper end of the threshing frame 14 to the left and outside, having a length spanning the front and rear ends. And the extension part 14B is provided with the bolt connection part with each coupling member 54, and the extension part 14B is comprised so that it may become a support part which supports the side wall body 16 so that vertical swing is possible.

That is, the upper connecting member 49, which enhances the shape retention of the side wall body 16 and has high shape retention and strength itself, is connected to the upper end of the threshing frame 14 through the support shaft 26 or the like. It is combined with the absence of Thereby, the connection point with the threshing frame 14 in the side wall body 16 is high enough to open and close the side wall body 16 satisfactorily, without forming a new reinforcing member or the like at the connection point. It can be configured in a state with less distortion with shape retention and strength.

As shown in Figs. 7 to 9, the threshing device 5 has a side surface 14Ac on the side wall side of the frame portion 14A of the threshing frame 14 (hereinafter referred to as the left side surface 14Ac). And, in the side wall body 16, the frame-shaped surface portion 45B of the inner wall plate 45 corresponding to the left surface 14Ac of the frame portion 14A is brought into close contact with the side wall body 16 in the closed position. A member 55 is provided. Thereby, the grain obtained by the ?f machine process by the barrel 17 in the threshing apparatus 5 is the left surface 14Ac of the frame part 14A and the frame-shaped surface part 45B of the inner wall board 45 It is possible to prevent the occurrence of leaking problems from gaps.

In the frame portion 14A, the front side surface portion 14a, the rear side surface portion 14b, and the upper side surface portion 14c of the left side surface 14Ac are located on the same surface, and only the lower side surface portion 14d differs from the side surface portions 14a to 14c. ), it is configured to be located on the left outer side.

The inner wall plate 45 of the side wall body 16 is provided with auxiliary members 56 spanning the front and rear ends of the inner wall plate 45 at its lower end. The auxiliary member 56 has a downward L-shape when viewed in the front-back direction, and the upper surface thereof is welded to the bottom surface of the peripheral wall portion 45A in the inner wall plate 45 to close the side wall body 16. In position, it is configured to have a side surface 56a facing the lower surface portion 14d of the frame portion 14A. Then, by this side surface 56a, among the frame-shaped surface portions 45B of the inner wall plate 45, the lower side surface portion corresponding to the lower side surface portion 14d of the left side surface 14Ac in the frame portion 14A ( 45Ba) is formed.

As a result, the auxiliary member 56 can effectively enhance the shape retention at the lower end (loose end) of the inner wall plate 45, where distortion tends to occur due to being separated from the swing support point of the side wall body 16. Then, in that the side surface 56a of the auxiliary member 56 is used as the lower surface portion 45Ba of the frame-shaped surface portion 45B, it is via the sealing member 55 in the closed position of the side wall body 16. The close contact state at the lower side between the left side face 14Ac of the close frame portion 14A and the frame-shaped face portion 45B of the inner wall plate 45 can be maintained well.

As shown in FIGS. 7-9, the sealing member 55 adheres to the front side surface part 14a of the left side surface 14Ac in the frame part 14A of the threshing frame 14, and is vertically long front. Side seal part 55A, the vertically long rear side seal part 55B adhered to the rear side surface part 14b of the left side surface 14Ac, and the horizontally long part adhered to the upper surface part 14c of the left side surface 14Ac. Horizontally bonded to the upper seal portion 55C and the lower surface portion 45Ba of the frame-shaped surface portion 45B in the inner wall plate 45 of the side wall body 16 (the side surface 56a of the auxiliary member 56). 55D of lower side sealing parts which are long.

As shown in FIGS. 5 and 7 to 10, the side wall body 16 is located at the front half and the second half of the inner wall plate 45, respectively, in the closed position of the side wall body 16, downward of the water net 18. It is equipped with the entering guide part 57. Each guide portion 57 is provided with a guide surface 57A extending downward to the right from the upper and lower intermediate portions of the inner wall plate 45 in a state in which the amount of downward entry of the water net 18 in the closed position increases as the downward direction increases. are doing Moreover, it is provided with the front surface 57B extending over the inner wall board 45 from 57 A of guide surfaces, the rear surface 57C, and the bottom surface 57D. And it is comprised in the box shape which forms the obstruction space 58 between the inner wall board 45 by providing these each surface 57A-57D. In addition, by setting the front and rear widths thereof to a width slightly narrower than half of the front and rear widths of the inner wall plate 45, between the front and rear guide portions 57, the swing sorting mechanism ( 19) is formed with a gap 59 allowing the fall of the sorting object to the left end.

By this configuration, most of the sorting objects filtered from the left end of the water net 18, where the leakage amount increases by being located on the upper side in the rotation direction of the barrel 17, by the guide surface 57A of each guide part 57 , can be guided to the left and right center sides of the swing sorting mechanism 19. In this way, it is possible to prevent occurrence of a sorting defect in the shaking sorting mechanism 19 due to the intensive supply of the sorting objects dropped from the water net 18 to the left end side of the swing sorting mechanism 19 .

Further, the shape retention of the side wall body 16 can be further enhanced by configuring each guide portion 57 in a box shape. In this way, the posture of the side wall body 16 in the open position can be maintained in a favorable posture with less distortion.

In addition, since each guide portion 57 forms a closed space 58 between the inner wall plate 45 and the object to be sorted down from the water net 18, the inner wall plate 45 and each guide portion ( 57) can be prevented from occurring. Thereby, the fall of the grain recovery efficiency resulting from a grain entering the middle of the inner wall board 45 and each guide part 57 can be avoided. In addition, it is possible to prevent grain culm debris and the like from entering the middle of the inner wall plate 45 and the guide portion 57 and adhering to the inner wall plate 45 and the guide portion 57. As a result, the labor required when cleaning the inside of the threshing device 5 can be reduced.

In each guide part 57, 57 A of guide surfaces and 57 D of bottom surfaces are formed by bending the 1st steel plate 60 so that they may connect. The front face 57B is made of the second steel plate 61, and the rear face 57C is made of the third steel plate 62, and the inner wall plate 45 of the side wall body 16 and the first steel plate 60 are formed. It is formed in a triangular shape when viewed from the front and rear directions entering the middle of the . Then, the second steel plate 61 is welded to the front end of the first steel plate 60, and the third steel plate 62 is welded to the rear end of the first steel plate 60 to form a guide portion 57. there is. Each guide portion 57 forms a closed space 58 between the inner wall plate 45 and the inner wall plate 45 of the side wall body 16 by welding.

4, 5 and 10, the frame portion 14A of the threshing frame 14 connects the piston rod 44A of the gas damper 44 to the lower end of its rear edge portion 14Aa and a swinging member 64 that swings using the first coupling shaft 63 as a fulcrum. The side wall body 16 has a second coupling shaft 65 connecting the cylinder tube 44B of the gas damper 44 to the installation portion 16A. The gas damper 44 connects the first connecting shaft 63 of the frame portion 14A and the second connecting shaft 65 of the side wall 16 so as to extend with the upward swing of the side wall 16 to the open position. ) is hypothesized throughout.

The swing member 64 is disposed between the frame portion 14A and the gas damper 44 . Then, the shape when viewed in the vertical direction is formed into a substantially U-shape that fits the cylinder tube 44B of the gas damper 44 from the outside in the closed position of the side wall body 16 . In addition, the vertical length thereof is intermediate between the cylinder tube 44B of the gas damper 44 and the first connecting shaft 63 of the frame portion 14A as the side wall 16 reaches the open position. It is set to the length to enter. This causes the rocking member 64 to function as a lowering preventing mechanism C that blocks the lowering of the side wall body 16 from the open position.

With the above structure, the operation force required for rocking operation of the side wall body 16 to the open position can be reduced by the action of the gas damper 44 . As a result, the operability at the time of swinging the side wall body 16 to the open position can be improved.

Further, when the side wall body 16 reaches the open position, the rocking member 64 positioned above the gas damper 44 at this time moves the cylinder tube 44B of the gas damper 44 and the frame portion 14A. automatically enters between the first linking shaft 63 of the gas damper 44 and the lowering of the side wall body 16 from the open position while preventing the contraction operation. Thus, even if a gas leak occurs in the gas damper 44, the occurrence of the problem that the side wall body 16 unpredictably descends from the open position due to the gas leak is prevented from occurring. It can be prevented reliably without requiring special operation.

As shown in FIGS. 5, 7 and 11 , the threshing device 5 is provided with a locking mechanism 66 enabling the fixed holding of the side wall body 16 in the closed position. The locking mechanism 66 is a pair of front and rear engaging tools 67 provided on the lower edge portion 14Ad of the frame portion 14A in the threshing frame 14, and the lower end of the side wall body 16 It is composed of a pair of front and rear engaging tools 68 provided in the. As a result, the locking mechanism 66 can be acted on the lower end of the side wall 16, which is easily separated from the frame portion 14A due to being separated from the swing support point of the side wall 16. As a result, the fixed holding of the side wall body 16 by the locking mechanism 66 in the closed position can be satisfactorily performed.

Each engaged coupler 67 is constituted by a shaft member 69 in the front-back direction. And it is equipped with the extended end part of the front-back support arm 70 extending left and outside from the lower edge part 14Ad of 14 A of frame parts. Each engaging tool 68 is composed of a resin-made fixing member 71 fixed to the lower end of the side wall body 16 and a resin-made movable member 72 engaged and connected to the fixing member 71 so as to be able to swing up and down. is composed of Each fixed member 71 includes a concave portion 71A that allows the shaft member 69 to be engaged and inserted, and an elastic pressing portion (not shown) that presses the movable member 72 downward. Each movable member 72 is formed into a hook shape that engages with the shaft member 69 engaged in the concave portion 71A of the stationary member 71 by downward swinging. Further, it swings up and down across an engagement position engaging the shaft member 69 engaged in the recessed portion 71A of the fixing member 71 and an upward release position releasing the engagement with the shaft member 69. do. And, at the left end thereof, an operating portion 72A is provided to enable upward swinging operation against the action of the elastic urging portion by manual operation. In addition, at their right end, an interlocking portion that enables upward swinging operation against the action of the elastic biasing portion due to contact with the shaft member 69 linked to swinging operation of the side wall body 16 to the closed position. (72B) is provided.

Thus, when the side wall body 16 is rocked to the closed position, the side wall body 16 is moved to the closed position by the action of each elastic urging portion and the action of each interlocking portion 72B in the locking mechanism 66. It is possible to fix and hold the side wall body 16 automatically in the closed position in conjunction with the arrival of . And, fixing and holding of the side wall body 16 in the closed position by this locking mechanism 66 is simple by manually operating the operation part 72A of each movable member 72 in the locking mechanism 66. can be unlocked

As shown in FIG. 11 and FIG. 12, 14 A of frame parts of the threshing frame 14 are provided with the support arm 70 before and behind mentioned above. And, by making the extension length of each support arm 70 in the left direction adjustable to the front and rear support arm 70, the position which enables position adjustment in the horizontal direction of the body of each axis member 69 is possible. Equipped with an adjusting mechanism D. As a result, in the opening and closing direction of the side wall 16 due to manufacturing errors of the threshing frame 14 or the side wall 16, the closed position of the side wall 16 and the side wall by the lock mechanism 66 ( When a displacement occurs in the fixed position of 16), the displacement can be absorbed by the position adjusting mechanism D. As a result, regardless of the manufacturing error of the threshing frame 14 or the side wall body 16, the closing position of the side wall body 16 and the fixed position of the side wall body 16 by the lock mechanism 66 can be matched. , The locking mechanism 66 can properly fix and hold the side wall body in the closed position.

Each support arm 70 supports the first member 73 of a substantially U-shape in plan view fixed to the lower edge portion 14Ad of the frame portion 14A, and the shaft member 69, one front and the back. A pair of second members 74 are provided. Then, in each second member 74, two long holes Da and Db, which are long in the transverse direction of the base, are formed by arranging them in the transverse direction of the base. Moreover, the 1st member 73 and the 2nd member 74 which used the long hole Da by the side of the threshing frame in each 2nd member 74 in both parts before and behind in the 1st member 73 A connecting portion Dc enabling bolt connection and a projection Dd engaging and inserting into the long hole Db on the side wall side in each second member 74 so as to be movable in the transverse direction of the machine are arranged in the transverse direction of the machine, are equipped And the position adjusting mechanism D provided to each support arm 70 is comprised from these two long holes Da, Db, coupling part Dc, and protrusion Dd.

According to this structure, in each support arm 70, the 1st member 73 and the long hole Da of each connection part Dc of the 1st member 73, and the threshing-frame side of each 2nd member 74 are used. By temporarily fixing the second member 74 with bolts 75 and engaging each projection Dd of the first member 73 into the long hole Db on the side wall side of each second member 74, While allowing movement of the body of each second member 74 relative to the first member 73 in the lateral direction, it is possible to prevent the swing displacement of each second member 74 relative to the first member 73. . That is, it is possible to prevent rotation of each second member 74 relative to the first member 73 reliably while reducing the number of bolted connection points between the first member 73 and each second member 74 . This makes it possible to easily adjust the position of the shaft member 69 in the transverse direction of the body. Then, after adjusting the position of the shaft member 69, the bolt 75 in a temporarily fixed state is finally tightened to connect the first member 73 and each second member 74 with bolts, thereby moving the shaft member 69 to an appropriate position. can be easily fixed in That is, the position adjustment and fixation of the shaft member 69 by each position adjustment mechanism D can be performed easily and appropriately.

[Another embodiment of the first embodiment]

[1] The harvesting type combine may be one in which the threshing device 5 is disposed on the right half of the body frame 1. In this case, the opening 24 and the side wall body 16 are located at the right end of the threshing device 5, so that the barrel 17 and the water net 18 can face the right outer side of the body.

[2] The threshing device may have a barrel 17 configured in a drum type. Moreover, what comprised the water net 18 by the 4-division structure etc. which can be divided into 2 divisions left and right by the front-back 2 division structure etc. is sufficient.

[3] The number of supporting shafts 26 in the forward and backward directions supporting the side wall 16 so as to be able to swing up and down can be changed in various ways depending on the front and rear length or weight of the side wall 16. For example, when the length of the front and back of the side wall body 16 is increased or when the weight of the side wall body 16 becomes heavy, the number of support shafts 26 in the front and rear direction may be increased to 5 or more. . Conversely, when the length of the front and back of the side wall 16 is shortened or when the weight of the side wall 16 is light, the number of supporting shafts 26 in the front and rear direction may be reduced to three or less.

[4] The frame portion 14A of the threshing frame 14 and the side wall 16 are formed by lifting and rocking the holding mechanism B, for example, the side wall 16 to the open position or to a position above the open position. It may be constituted by a rocking type or detachable type holding member disposed at the rear edge portion 14Aa of the frame portion 14A so that it can be erected over the frame. In addition, a retractable holding member disposed at the rear edge portion 14Aa of the frame portion 14A so as to switch from a bent state to an extended state in association with rocking operation of the side wall body 16 from the closed position to the open position. may be configured by

[5] The side wall body 16 may be made of the top plate 51 as a dedicated member. Alternatively, the top plate 51 may be integrally formed with the inner wall plate 45 or the upper connecting member 49. Moreover, the thing which does not have the top plate 51 may be sufficient.

[6] The side wall body 16 may be formed by integrally forming either one or both of the front wall plate 47 and the rear wall plate 48 with the inner wall plate 45 or the outer wall plate 46 .

[7] The side wall body 16 may have a bottom plate.

[8] The side wall body 16 may be equipped with an attachment portion 16A for a holding mechanism at a location in the vicinity of the rear wall plate 48 in the inner wall plate 45 or the outer wall plate 46 .

[9] The side wall body 16 may include either an upper connecting member 49 or a lower connecting member 50. Moreover, it may be what does not have both the upper connection member 49 and the lower connection member 50.

[10] The side wall body 16 may be one in which the outer surface 50A of the lower linking member 50 is not brought into surface contact with the lower end 46A of the outer wall plate 46.

[11] The side wall body 16 may be provided with a dedicated member enabling connection with the upper end of the threshing frame 14 through the support shaft 26.

[12] The side wall body 16 may be provided with a single guide portion 57 spanning the front and rear ends of the inner wall plate 45. Moreover, within the front-back width of the inner wall board 45, three or more guide parts 57 may be provided by arranging them in the front-back direction.

[13] The inner wall plate 45 of the side wall body 16 may not have a peripheral wall portion 45A. In addition, instead of the peripheral wall portion 45A, a front wall portion and a rear wall portion enabling bolt connection with the front wall plate 47 or the rear wall plate 48 may be provided.

[14] The inner wall plate 45 of the side wall body 16 may be without the auxiliary member 56. Further, a portion corresponding to the auxiliary member 56 may be bent at the lower end thereof.

[15] The upper linking member 49 of the side wall 16 may have an L-shape or a C-shape when viewed from the front-rear direction.

[16] The lower connecting member 50 of the side wall 16 may have an L-shape or a C-shape when viewed from the front-rear direction.

[17] The guide portion 57 of the side wall body 16 may have an opening formed in the bottom surface 57D. Moreover, it may be what does not have the bottom surface 57D.

[18] The side surface 14Ac on the side wall side in the frame portion 14A of the threshing frame 14 is formed so that the entirety is positioned on the same surface, and the side wall body corresponding to the side surface 14Ac ( The frame-shaped surface portion 45B of the inner wall plate 45 in 16) may be formed so that the entirety thereof is located on the same surface.

[19] The piston rod 44A of the gas damper 44 is connected to the side wall 16 via the second connecting shaft 65, and the swing member 64 is connected to the second connecting shaft 65 as a fulcrum. In the swinging state, it is disposed between the frame portion 14A of the threshing frame 14 and the gas damper 44, and as the side wall body 16 reaches the open position, the swinging member 64 Temporarily, it may be structured so that it enters the middle of the cylinder tube 44B of the gas damper 44 and the second coupling shaft 65 of the side wall body 16, and prevents the side wall body 16 from lowering from the open position.

[20] The locking mechanism 66 is engaged, for example, with an engaging hole provided as an engaging tool 67 in the lower edge portion 14Ad of the frame portion 14A and the lower end of the side wall body 16 You may constitute with the engaging pin provided as the coupler 68.

[21] The position adjusting mechanism D forms two long holes Da and Db that are long in the transverse direction of the body in the first member 73 fixed to the lower edge portion 14Ad of the frame portion 14A, and further, You may configure so that the 2nd member 74 which supports the engagement piece 67 to be engaged may be provided with the connection part Dc for bolt connection, and the projection Dd for insertion. Further, on either one of the first member 73 and the second member 74, two long holes Da and Db are arranged vertically and formed, and on the other side, a connecting portion Dc for bolt connection and for engaging insertion You may form by arranging the projection Dd of up and down.

[Second Embodiment]

Next, referring to Figs. 13 to 32, the case where the second embodiment is applied to a normal type (transmission type) combine as an example of the combine will be described.

[Overall configuration]

In FIG. 13 and FIG. 14, the normal type combine for harvesting rice, barley, etc. is shown. This combine is provided with a traveling body equipped with a pair of left and right crawler type traveling devices 102 at the lower part of the body frame 101, and the front portion of the traveling body is reaped by planting grains to be harvested, and the rear The reaping conveyance part 103 as a reaping part conveyed toward is connected around a transverse axis center so that swinging elevation is possible. And threshing apparatus which performs a sorting process with respect to the threshing-processed thing obtained by the threshing process, while performing a sifting process with respect to the harvested grain stem from the reaping conveyance part 103 on the body frame 101 (104), the grain tank 105 for storing the grains from the threshing device 104, the grain discharge device 106 for discharging the grains stored in the grain tank 105 to the outside of the machine, the operator boarding and operating A driving unit 107 and the like are provided.

The driving unit 107 is located on the right side of the front of the aircraft, and the grain tank 105 is located at the rear of the driving unit 107. In a state where the threshing device 104 is located on the left side and the grain tank 105 is located on the right side, the threshing device 104 and the grain tank 105 are provided in a state in which they are arranged in the left and right directions. An engine 108 for driving is provided on the lower side of the driving unit 107, and the power of the engine 108 is transmitted to each unit.

In addition, in this embodiment, when defining the left direction and the right direction, left and right are defined based on the view from the moving direction of the aircraft.

The reaping conveying unit 103 is accompanied by the traveling of the machine, a weeding tool 109 that selects and divides the planted grain stems into harvest target planted grain stems and planted grain stems other than the harvest target planted grain stems, and a rotary reel that scrapes the planted grain stems to be harvested toward the rear. (110), a barricane-type reaping device 111 that cuts the root side of the planted grain stem to be harvested, and a transverse feed auger 112 that scrapes the harvested grain stem after cutting to a predetermined location on the center side in the left and right direction and sends it out toward the rear. ) and the feeder 113 etc. which convey the harvested grain stem towards the threshing apparatus 104 are provided and comprised. And the reaping conveyance part 103 is supported by the hydraulic cylinder which is not shown so that raising/lowering rocking is possible around the transverse axis P1.

The threshing device 104, although not described in detail, is a barrel 115 (see FIG. 21) rotating around the front and rear shafts on the upper side of the inner space surrounded by the side walls on both left and right sides and the upper ceiling plate, It is configured to sort the harvested grains conveyed from the feeder 113 into grains, second water, discharged straw crumbs, and the like, after the grain processing. Grain is conveyed to one side horizontally by the number 1 recovery screw 116 (see Fig. 21), and then conveyed upward by the vertical conveying device 117, and stored in the grain tank 105. The second material is conveyed to one side of the transversely by the collection screw 118 (see FIG. 21), and then returned to the inside of the threshing device 104 by the second water reduction device 119, and the discharged straw shavings etc. are returned to the rear side of the body discharged to the outside After the completion of the harvesting operation, the grain stored in the grain tank 105 is discharged outside the machine by the grain discharge device 106.

As shown in FIG. 13, the bottom part of the grain tank 105 is equipped with the bottom screw 105a which sends out the stored grain to the rear side outside. The grain discharge apparatus 106 which conveys the grain sent to the outside from the lower part of the grain tank 105 by the bottom screw 105a, and discharges to the discharge location not shown in the body exterior is provided.

The grain discharge device 106 is a screw conveying device of a known structure, and the grains sent outward in the transverse direction by the bottom screw 105a provided in the lower part of the grain tank 105 are conveyed upwards. Vertical screw The horizontal screw conveyor 106b which conveys a grain horizontally from the conveyor 106a and the conveyance end part of the vertical screw conveyor 106a is provided. Moreover, in the state which communicates the connection case 106c which connects the lower part of the vertical screw conveyor 106a and the threshing apparatus 104, and the vertical screw conveyor 106a and the horizontal screw conveyor 106b so that grain conveyance is possible, and also It is equipped with the connection part 106d connected so that relative rotation around a transverse center is possible in the middle part. This grain discharge device 106, after conveying the grain, can discharge the grain to the outside from the discharge port 106e formed at the front end of the horizontal screw conveyor.

Then, the power from the engine 108 is transmitted to the bottom screw 105a through the belt tension type discharge clutch 120, and then the power is transmitted to the grain discharge device to be rotationally driven, and the grain discharge operation can be performed there is.

By drive of the turning motor M, the grain discharge device 106 is configured so that turning operation is possible as a whole around the vertical axis Y at the center of the vertical screw conveyor 106a. Further, the transverse screw conveyor 106b is configured to be capable of swinging elevation around the transverse axis X by driving the elevation cylinder CY.

As shown in FIG. 16 , a motor unit 127 is provided below the driver's seat 107A of the driving unit 107 . As shown in FIG. 15, in this motor unit 127, there is an engine 108, a radiator 121 for cooling the engine, and a rotating fan for blowing cooling air to the radiator 121 (hereinafter referred to as “fan”). ) 122, and a fan rotation switching mechanism 123 (an example of a ventilation state switching mechanism) capable of changing the rotation direction of the fan 122. In addition, an anti-vibration net 124, which is an example of a damping tool for preventing the intrusion of dust or the like by the cooling air supplied to the radiator 121, is provided.

In addition, an air cleaner 125 for supplying purified fuel air to the engine 108 and a pre-cleaner 126 for supplying air from which large dust has been previously removed from the outside air to the air cleaner 125 are provided. . 13 and 14, the air cleaner 125 is provided on the upper side of the engine 108 and on the rear side of the driver's seat 107A. On the other hand, the pre-cleaner 126 is provided at the left rear side end of the driving unit 107 and is located at a position higher than the canopy 107B provided on the driving unit 107. By disposing in such a position, when the grain tank protrudes to the outside maintenance position and is operated, the canopy 107B provided integrally with it does not interfere with the pre-cleaner 126.

That is, the grain tank 105 is installed so as to be rotatable around the vertical axis of the vertical screw conveyor 106a, and can switch posture between an action position that withdraws toward the inner side of the body and a maintenance position that protrudes outward on the horizontal side of the body. It is composed of And it is made to avoid that the canopy 107B interferes with the pre-cleaner 126 with the posture change of the grain tank 105.

[Fan rotation switching mechanism]

Next, the structure of the fan rotation switching mechanism 123 will be described.

16, an output pulley 128 attached to the output shaft 108a of the engine 108 and an idle pulley 130 rotatably attached to the rotary shaft 129 supported on the side surface of the engine 108. ) and the input pulley 132 of the alternator 131, the first fan belt 133 is wound. The tension pulley 134 always applies tension to the first fan belt 133 for transmission.

As shown in FIGS. 16 to 19, a fan pulley 122a that rotates integrally with the fan 122 is fitted to the rotating shaft 129 from the outside so as to be relatively rotatable, and a switching oscillator 135 is attached to the rotating shaft 129. ) is fitted outside to enable relative rotation. In addition, a forward rotation pulley 136 formed by integrally overlapping two pulleys 136a and 136b in the axial direction, and a reverse rotation pulley formed by integrally overlapping two pulleys 137a and 137b in the axial direction ( 137) is rotatably attached to the switching oscillator 135. The second fan belt 138 is wound across the fan pulley 122a, one pulley 136a of the forward rotation pulley 136, and one pulley 137a of the reverse rotation pulley 137.

When the switching oscillator 135 is operated to switch to the cooling position shown in FIG. 19, the first fan belt always rotates in the direction of the arrow in the drawing by the output pulley 128 that rotates with the output of the engine 108. The other pulley 136b of the normal rotation pulley 136 is pressed against the inner surface of 133. Rotation of the first fan belt 133 is transmitted to the second fan belt 138 by interposing the two pulleys 136a and 136b of the forward rotation pulley 136, and the second fan belt 138 is rotate clockwise in the direction of the arrow. The power of the second fan belt 138 rotated in this way is forward rotation drive and is transmitted to the fan pulley 122a whose rotation direction is integrated with the fan 122, and the fan 122 is in a forward rotation drive state. do. In this state, the fan 122 supplies engine cooling wind from the outside of the motor unit 127 to the radiator 121 through the dustproof net 124. That is, it is a rectifying state in which wind is ventilated to the radiator 121 by sucking in outside air through the dustproof net 124 .

When the switching oscillator 135 is operated to switch to the damping position shown in FIG. 18, the first fan belt always rotates in the direction of the arrow in the drawing by the output pulley 128 that rotates with the output of the engine 108. The other pulley 137b of the reverse rotation pulley 137 is pressed against the outer surface of 133. Rotation of the first fan belt 133 is transmitted to the second fan belt 138 by interposing the two pulleys 137a and 137b in the reverse rotation pulley 137, and the second fan belt 138 is shown in the drawing. Rotate counterclockwise in the direction of the arrow. The power of the second fan belt 138 rotated in reverse in this way is transmitted to the fan pulley 122a whose rotation direction is integrated with the fan 122 as a reverse rotation drive, and the fan 122 is in a reverse rotation drive state. becomes In this state, the fan 122 blows air toward the dustproof net 124 through the radiator 121, and blows away the dust adhering to the dustproof net 124, such as straw debris, to the outside, and cleans it. That is, it is a reverse flow state in which wind is ventilated from the radiator 121 toward the dustproof net 124.

Next, a structure for switching the fan rotation switching mechanism 123 will be described.

As shown in FIGS. 16, 18, and 19, the fan rotation switching mechanism 123 is operated by a switching operation lever 141 as a switching operation tool provided on the side panel 140 of the driver 107. It is configured to switch between a normal flow state and a reverse flow state based on an operation. Specifically, the cooling position in which the switching oscillator 135 presses the forward rotation pulley 136 against the first fan belt 133 as shown in FIG. 19 based on the operation of the switching operation lever 141 And, as shown in FIG. 18, the first fan belt 133 is configured to be switched to a damping position in which the reverse rotation pulley 137 is pressed.

As shown in Figs. 15 and 16, the switching control lever 141 is provided at a location located on the left rear side of the driver's seat 107A and on the rear side of the side panel 140, and extends along the front-rear direction. It is supported by a frame body 142 in the front-rear direction to be capable of rocking operation around the transverse axis P2. At the proximal end of the changeover control lever 141, a thread take-up rocking arm 143 extending in the front-rear direction in a state intersecting the longitudinal direction of the changeover control lever 141 is provided so as to be able to swing integrally. Further, a coil spring (an example of a pressure mechanism) 145 is connected across the middle portion of the rear end side of the thread take-up swing arm 143 and the spring accommodating portion 144 located on the lower side, and the switching operation lever 141 ) is swinging and pressurized in the counterclockwise direction in Fig. 16, that is, toward the stationary state.

As shown in Fig. 16, the front-and-back frame body 142 is supported by a post 146 erected from the body frame 101 and other frame bodies. A discharge clutch lever 147 for switching the connection of the discharge clutch 120 as a clutch is supported so as to be able to swing around the transverse center P3 provided at a location close to the position of the transverse axis P2.

As shown in Figs. 16, 18 and 19, a rotation operating body 149 is capable of swinging around the transverse axis P4 to the support plate 148 fixed to the body side at a position close to the switching swing body 135. is supported This rotation operation body 149 is constituted by a plate body having a substantially triangular shape, and a substantially middle portion of one side of the triangle of this rotation operation body 149 is pivoted to the support plate 148 . The support plate 148 is provided with a regulating member 150 that abuts against the rotation operating body 149 and regulates the swing limit.

The corner portion 149b opposite to the rotation fulcrum 149a of the rotation operation body 149 and the swing direction end side portion 135a of the switching swing body 135 are connected via a spring 151, and the rotation operation body ( A corner portion 149c of one of the sides where the rotation support point 149a of 149 is located and a location 135b on the other end side in the swing direction of the switching swing body 135 are connected via a first operation wire 152, there is.

Then, one end of the thread take-up rocking arm 143 and the corner part 149d on the other side of one side where the pivot support point 149a of the pivot operating body 149 is located pass through the second operation wire 153. It is connected, and the position in the vicinity of the other end of the thread take-up rocking arm 143 and the corner part 149c of one of the sides where the pivot support point 149a of the pivot operating body 149 is located is the third operating wire 154 ) is connected via

Accordingly, a linkage mechanism R linking the switching operation lever 141 and the fan rotation switching mechanism 123 by means of the spring 151, the three operating wires 152, 153, 154, the rotation operating body 149, and the like is Consists of.

In the fan rotation switching mechanism 123 having such a configuration, in a state in which the switching operation lever 141 is not operated, the tension biasing force of the coil spring 145 moves the switching operation lever 141 counterclockwise in FIG. 19 . Since it is pivotally pressed in the (left circumferential direction), the second operation wire 153 is pulled, and the switching rocker 135 is rocked and pressed in the clockwise direction (clockwise direction) in FIG. 19 . When the switching oscillator 135 abuts against the regulating member 150 and further oscillation is restricted, it is held at that position (normal rotation position) (see Fig. 19). In this state, the switching oscillator 135 is in the cooling position, and the fan 122 is in a normal rotation state. At this time, the switching control lever 141 is in a standing posture in which it is raised toward the upper direction.

When the switching control lever 141 is manually operated to swing clockwise in FIG. 18 , the third operating wire 154 is pulled and the switching swing body 135 is rocked counterclockwise in FIG. 18 . When the switching oscillator 135 abuts against the regulating member 150 and further oscillation is restricted, the operation stops at that position (reverse rotation position) (see Fig. 18). In this state, the switching oscillator 135 is in a damping position, and the fan 122 is in a reverse rotation state. At this time, the switching operation lever 141 is in a prone posture toward the body front side. When the operator releases his/her hand from the lying down position switching control lever 141, the switching control lever 141 is automatically returned to the standing position (normal rotation position) by the urging force of the coil spring 145.

Therefore, the switching operation lever 141 is installed to be capable of switching operation between the standing posture and the lying posture, and when the switching operation lever 141 is operated to switch to the standing posture, the fan rotation switching mechanism 123 is switched to the stationary state. , the fan rotation switching mechanism 123 is configured to switch to the reverse flow state when the switching operation lever 141 is switched to the prone posture.

As shown in Fig. 20, in the middle part of the movement operation path of the changeover control lever 141, it is possible to switch between a check action state that checks the changeover operation of the changeover control lever 141 and a non-action state allowing the changeover operation. A containment member 155 is provided. The restraining member 155 is a posture change member between a restraining action state in which the switching operation lever 141 is brought into contact with and a non-acting state allowing the movement operation of the switching operation lever 141, and a knob bolt in each state. By fastening (156), the position can be held.

In the check action state, the check member 155 enters the forward/backward rocking operation area of the switch control lever 141, and checks the switch control lever 141 from being switched to the prostrate posture by contact regulation. Further, in the non-acting state, the switching control lever 141 moves out of the forward and backward rocking operation area, and the switching control lever 141 is allowed to switch to the prone posture.

Since the operating state of the fan rotation switching mechanism 123 is switched by manual operation in this way, the operator sets the fan at an appropriate timing according to the situation of clogging in the dustproof net 124 as the harvesting work is performed. The rotation switching mechanism 123 can be switched to a reverse flow state.

And it is comprised so that notification means informs that it is a timing suitable for switching the fan rotation switching mechanism 123 to a reverse flow state. For example, based on the coolant temperature detection information of the engine 108, if it is necessary to switch to the damping state, the display panel 157 provided in the driving unit 107 as a notification means displays it. At that time, a buzzer may be sounded to notify.

[electric structure]

Next, the transmission structure will be described.

As shown in FIG. 21, the power of the engine 108 is transmitted to the main transmission 161 composed of a hydrostatic continuously variable transmission via a belt transmission mechanism 159 provided with a first transmission belt 158. After being shifted by the main transmission device 161, it is transmitted to the mission case 162 provided on the front side of the aircraft of the engine 108. The transmission case 162 is provided with a transmission mechanism such as an interlocking gear shifting device 163 and a swing operating mechanism not shown, and the power transmitted to the transmission case 162 is transmitted to the inside of the transmission case 162. It is transmitted to the traveling devices 102 on the left and right through the transmission mechanism of the .

Moreover, the motive power of the engine 108 is transmitted to the tuyere rotation shaft 167 of the tuyere 166 so that intermittence is possible via the belt tension type threshing clutch 165 provided with the 2nd transmission belt 164. Further, from the left end of the tuyere rotating shaft 167 through the third transmission belt 168, the device of each part in the threshing device 104, that is, the first collection screw 116, this collection screw 118 , power is transmitted to the rocking driving mechanism 169 for sorting and the like.

On the other hand, the fourth transmission belt 170 as an endless rotation body for input from the left end of the tuyere rotation shaft 167, the relay transmission shaft 171 in the left and right directions, and the bevel gear transmission mechanism 172 through the threshing device 104 Power is transmitted to the barrel 115 of the. Power is transmitted from the relay transmission shaft 171 to the input shaft 175 for harvesting through the belt tension type reaping clutch 174 having the fifth transmission belt 173 as an endless rotating body for output, and this input shaft 175 for harvesting Power is transmitted to each part of the reaping conveyance part 103 from).

On the right side of the bevel gear transmission mechanism 172, a reverse rotation shaft 176 in the left and right direction is installed, and the reverse rotation shaft 176 enables transmission of reverse rotation power to the input shaft 175 for harvesting. A power mechanism 177 is provided. Although not described in detail, the reaping clutch 174 is set to a power cut off state, and the reaping conveyance unit 103 is driven by reverse rotation driving the power transmission mechanism 177 for reverse rotation temporarily from the power cut off state to the power input state. When clogging occurs due to contamination of the grain stem, the clogged grain stem can be removed.

The input shaft 175 for harvesting has a structure that also serves as a rotational shaft on the drive side of the feeder 113, and from the input shaft 175 for harvesting via the chain transmission mechanism 178, the conveyance start end of the feeder 113 Power is transmitted to the transverse relay shaft 179 provided on the right side. In addition, the power is transmitted from the relay shaft 179 to the horizontal transfer auger 112 and the rotating reel 110, and the reaping device ( 111) is passed on. Moreover, the motive power of the engine 108 is transmitted to the grain discharge device 106 via the belt tension type discharge clutch 120 provided with the 6th transmission belt 181.

[Operation part]

As shown in FIG. 15 , the driver 107 is provided with a front panel 182 in front of the driver's seat 107A, and the front panel 182 has a steering operation and lifting of the harvesting transport unit 103. An operation lever 183 capable of swinging crosswise for operation, a display panel 157 for displaying various types of information, and the like are provided.

A side panel 140 is provided on the side of the driver's seat 107A. On this side panel 140, a threshing clutch lever 184 for disengaging the threshing clutch 165, a reaping clutch lever 185 for disengaging the reaping clutch 174, and a main transmission 161 are operated. A main shift lever 186 for doing, a sub shift lever 187 for manipulating the sub shift device 163, an accelerator lever 188, and the like are provided. In addition, on the rear side of the side panel 140, the discharge clutch lever 189 for switching the grain discharge device 106 to the grain discharge state, the above-mentioned switching operation lever 141 for changing the rotation direction of the fan, etc. are provided. .

The support structure of the side panel 140 will be described.

As shown in FIGS. 26, 27, and 30, a support frame body 190 for supporting the side panel 140 is provided. This support frame body 190 has an upper flat portion 190a forming an upper panel surface, and a state in which vertical surface portions 190b and 190c are connected in series to both left and right sides of the upper flat portion 190a. is integrally formed in

As shown in Figs. 26 and 27, in the support frame body 190, the place where the operation reaction force is generated the most, that is, the place corresponding to the rocking fulcrum position of the main shift lever 186 is the body frame 101. It is supported by a panel support frame 191 erected from the above. Further, the rear portion of the support frame body 190 is supported by another longitudinal frame (not shown) erected from the body frame 101 .

As shown in FIGS. 26, 27, and 28, the panel support frame 191 is erected from the body frame 101 in the front and rear intermediate portions of the engine 108 and the transmission case 162. And, while being connected to the vertical direction extension installation part 191A of the lower side which is installed upright from the body frame 101 and extends upward, and the vertical direction extension installation part 191A of the lower side, the mission case 162 A front-and-back direction extension portion 191B extending upwardly toward the front of the machine, and an upper longitudinal extension portion extending upward while being connected to a front portion side portion of the front-back direction extension portion 191B ( 191C) is provided.

Adding explanation, since the mission case 162 is provided on the lower side of the location on the front side of the side panel 140 when viewed from above, the frame is erected in a state where it extends in a straight line toward the upper side at that location. When installed, it needs to be connected to the outer surface of the mission case 162. When the frame is supported on the mission case 162 in this way, there is a disadvantage in that vibration generated according to the driving state is transmitted to the side panel 140 .

Therefore, in the middle part of the front and rear of the engine 108 and the mission case 162, it is installed upright from the body frame 101, extends forward along the upper side of the mission case 162, and the upper side extending upward from there. 191 C of longitudinal extension installation parts are provided, and the side panel 140 is supported.

As shown in Fig. 28, the lower longitudinally extending installation portion 191A is formed in a channel shape in a state of being open in the rear direction when viewed from a plan view. Then, a substantially L-shaped first connecting member 192 is connected to the upper end of the lower side longitudinally extending installation portion 191A when viewed from the front, and the vertical surface portion 192a of the first connecting member 192 is connected. On the outside, the vertical surface portion 193a of the second connecting member 193 having a substantially inverted L shape when viewed from the front is integrally connected. In addition, a plurality of reinforcing ribs 192c are provided between the vertical surface portion 192a and the horizontal surface portion 192b of the first connecting member 192, and the vertical surface portion 193a of the second connecting member 193 and the horizontal surface A plurality of reinforcing ribs 193c are also provided between the portions 193b.

In this way, the front-rear direction extension installation portion 191B is formed by the first connecting member 192 and the second connecting member 193, and on the upper side of the horizontal surface portion 193b of the second connecting member 193, 191 C of longitudinal extension installation parts of the upper side formed in the shape of a square cylinder are fixed and extended upward.

In the first connecting member 192 and the second connecting member 193, cutout concave portions 192d and 193d are formed in the vertical surface portions 192a and 193a, respectively, and the left and right directions pass through them in a state where they are integrally connected. A long hole is formed in the front-back direction. In addition, bolt mounting holes 192e and 193e are formed on both sides of the front and back sides of the cut-out concave portions 192d and 193d.

The cut-out concave portions 192d and 193d and the bolt mounting holes 192e and 193e support the rotational boss portion 196 that supports the rotational shaft 195 of the brake pedal 194 provided in the driving unit 107. It is intended to be installed so that the position can be adjusted back and forth. That is, as shown in Fig. 28, the pivoting boss 196 extends horizontally outside of the longitudinally extending portion 191B in a state where it is inserted through the long hole, and a flange portion 197 is formed at the horizontally external location. is integrally formed. The flange portion 197 is connected by a bolt 198 attached to the bolt mounting holes 192e and 193e, but the bolt insertion hole 199 formed in the flange portion 197 is formed as a long hole in the front and rear direction, , It is comprised so that the front-back position of the flange part 197 can be position-adjusted within the range of a long hole.

As shown in FIG. 27, the rotational shaft 195 of the brake pedal 194 is connected to the right rotational boss 201 provided below the left end of the driver step 200, as described above. Similarly, it is rotatably supported by the rotation boss part 196 of the left side provided in the panel support frame 191. The frame body 202 on the side of the driving unit 107 on which the rotational boss 201 on the right is supported and the panel support frame 191 on which the rotational boss 196 on the left is supported are in the body frame 101 Each stand is separately installed and fixed, and there is a risk that individual differences may occur in assembly accuracy during the manufacturing process. As a result, there is a possibility that the rotation shaft 195 cannot be assembled satisfactorily by the rotation boss portions 196 and 201 on both left and right sides due to such a dimensional error, but as described above, the panel support frame 191 By setting the rotation boss part 196 to be position-adjustable back and forth, manufacturing errors at the time of assembling can be absorbed.

As shown in FIG. 27, between the rotation boss 201 on the right side and the rotation boss 196 on the left side of the rotation shaft 195, the base end 194a of the brake pedal 194 and not shown A link mechanism 203 as a linking mechanism interlockingly linked with the brake operating unit that is not in use is connected. In this way, by connecting the member to which the driving reaction force is applied to the place sandwiched between the right side rotation boss portion 201 and the left side rotation boss portion 196, the rotation support of the rotation shaft 195 in a state where the bending deformation and the like is small. can As shown in FIG. 27 , the proximal end 194a of the brake pedal 194 is connected to a portion of the pivot shaft 195 on the driver side.

As described above, the lower side longitudinally extending portion 191A is connected to the lower portion of the first linking member 192 in the front-back direction extending portion 191B, and the upper side longitudinally extending portion 191B. (191C) is connected to the upper part of the 2nd coupling member 193 in the front-rear direction extension part 191B. And, since the first connecting member 192 and the second connecting member 193 are provided in a state in which they are arranged in the left and right directions, the upper vertical direction extension installation portion 191C is the lower side longitudinal extension installation portion ( 191A) is displaced in the transverse direction.

Therefore, as shown in FIG. 27 , the panel support frame 191 is formed in a substantially crank shape with an upper portion biased horizontally with respect to a lower portion when viewed from the front of the body. In addition, an inclined reinforcing rib 204 is formed between the front-back direction extension portion 191B and the lower side longitudinal extension portion 191A, and the front-back direction extension portion 191B and the upper side vertical direction extension portion 191A are formed. An inclined reinforcing rib 205 is formed between 191 C of directionally extending portions.

As shown in FIG. 26 and FIG. 27 , at the upper and lower intermediate position of the lower side longitudinally extending portion 191A, the first transmission belt 158 that transmits power from the engine 108 to the transmission case 162 is A tension mechanism 206 for imparting tension is fixedly supported.

The tension mechanism 206 includes a transverse shaft portion 207 that penetrates the longitudinally extending portion 191A on the lower side of the channel shape in the left and right directions when viewed from above and extends integrally to the outside horizontally, An operating arm 208 rotatably supported at the front end of the transverse shaft 207 and extending rearward, and a tension wheel 209 rotatably supported at the rear end of the operating arm 208. are doing In addition, the lower end is pivoted on the body frame 101 to support the coil spring 211 on the rod body 210 extending up and down, so that the tension wheel 209 is elastically pressed downward. In this way, it is comprised so that the tension wheel body 209 may always apply a tension force to the 1st transmission belt 158.

As shown in FIGS. 26, 27, and 30, it is located on the lower side of the left vertical surface portion of the support frame body 190 in the side panel 140, and extends from the front end to the rear end of the side panel 140. A front-rear direction reinforcement frame 212 extending in the shape of a square tube, and a longitudinal reinforcement frame 213 fixedly extending upward from a position at a rear portion of the front-back middle part of the front-rear direction reinforcement frame 212 are provided. has been

As shown in Fig. 27, the front-rear direction reinforcing frame body 212 is connected and fixed via a channel-shaped bracket 214 fixed to the panel support frame 191 when viewed from the front. The rear side portion of the front-rear direction reinforcing frame body 212 is connected and fixed to another vertical frame (not shown). Then, in a state that extends integrally upward from a position slightly biased toward the rear side of the front and rear intermediate portion of the front and rear direction reinforcement frame body 212, the longitudinal reinforcement frame body 213 having a channel shape in cross section is connected and fixed. there is.

As shown in Fig. 30, the lower end of the vertical direction reinforcement frame body 213 is connected and fixed to the front and rear direction reinforcement frame body 212, and the upper end is connected to the vertical surface portion 190b of the support frame body 190. A support bracket 215 for shaft support, which will be described later, is inserted and bolted in a fastened state.

The side panel 140 has a guide hole 216 through which the threshing clutch lever 184 and the reaping clutch lever 185 are inserted while covering the upper planar portion 190a of the support frame body 190 from above. A formed lever guide 217 is provided. The lever guide 217 is made of a synthetic resin material, and as shown in FIG. 27 , the lever guide 217 includes a guide portion 217A in a horizontal orientation in which a guide hole 216 is formed, and the guide portion ( 217A) and an inner vertical surface portion 217B in a vertical position extending downward to the outer side of the inner side vertical surface portion 217B, which extends to the outer side of the inner vertical surface portion 217B and is loaded and supported on the upper flat portion 190a of the support frame body 190. 217C of mounting parts in a lateral posture, and an outside vertical position in a vertical position extending downward to an outer portion of the mounting portion 217C and being located at a lateral outer side than the vertical surface portion 190c of the support frame body 190. A face portion 217D is provided.

By forming the lever guide 217 in this way, the entire upper surface of the side panel 140 and the end corners on both left and right sides can be smoothly covered, so that the driver seated in the driver's seat 107A does not feel discomfort even when the body touches it. less likely to feel

Next, the support structure of the threshing clutch lever 184 and the reaping clutch lever 185 is demonstrated.

As shown in Fig. 30, a rotational support shaft 218 for threshing that supports the threshing clutch lever 184 so as to be able to swing, and a rotational support shaft for harvesting of a cylindrical shape that supports the reaping clutch lever 185 so that swing is possible. 219 is provided in a state of being fitted so that relative rotation is possible around the same axis and in a state of extending along the transverse direction of the body from the inside to the outside of the driving unit 107.

At a location on the right side of the intermediate position of the left and right vertical surface portions 190b and 190c on both sides of the support frame body 190, the relay vertical surface portion 190d is integrally formed on the lower surface of the upper flat portion 190a. It is provided in a connected state, and the right side pivot boss 220 is integrally formed on the relay vertical surface 190d. Further, the left side pivot boss 221 is integrally provided with the support bracket 215 fixed with bolts to the vertical surface portion 190b on the feeder side (left side) of the support frame body 190. And by the pivot boss parts 220 and 221 on either side, the rotation support shaft 218 for threshing and the rotation support shaft 219 for harvesting are supported so that rotation is possible.

Therefore, the rotation support shaft 218 for threshing and the rotation support shaft 219 for harvesting are supported in the state which protrudes leftward rather than the feeder-side vertical surface part 190b. The support bracket 215 is bolted in a state where the feeder-side vertical face portion 190b of the support frame body 190 and the vertical reinforcing frame body 213 are held together.

As shown in FIG. 30, the inside front long shaft part 218a which protrudes toward the inner side rather than the inside side end part in the rotation support shaft 219 for harvesting at the inner side end part of the rotation support shaft 218 for threshing Is formed, and the proximal end side boss portion 222 of the threshing clutch lever 184 is fitted to the inner front long shaft portion 218a from the outside in a state of interlocking connection so as to integrally rotate. One end side of the proximal end side boss portion 222 abuts against the pivot boss portion 221 on the left side, and the other end side of the proximal end side boss portion 222 is prevented from being dislodged by a pin 223 so as to be positioned and fall out. is prevented

The outer front long shaft part 218b which protruded toward the outside rather than the outer side end in the rotation support shaft 219 for harvesting is formed in the outer end of the rotation support shaft 218 for threshing, and the outer front front long shaft part 218b The interlocking operation member 224 for the threshing clutch 165 is connected to this.

As shown in FIG. 29, the interlocking operation member 224 for the threshing claw 165 consists of a rectangular plate material, and is integrally connected to the outer front long shaft part 218b. And the relay operation member 226 is pivotally connected to the rocking end of the interlocking operation member 224 for this threshing claw 165 via the connecting shaft part 225 of the lateral direction. This relay operation member 226 is interlocked with the threshing claw 165 via the connecting rod 227 and the spring 228.

The harvesting clutch lever 185 is connected to the inside location of the rotation support shaft 219 for harvesting, and the interlocking operation member 229 for harvesting clutches is connected to the outside location of the rotation support shaft 219 for harvesting. That is, the harvesting clutch lever 185 is integrally connected to the outer periphery of the rotational support shaft 219 for harvesting at a position slightly raised outside the driving part 107 rather than the threshing clutch lever 184.

Further, as shown in FIGS. 29 and 30 , the rocking arm 230 is integrally connected to the outer periphery at a position close to the outer end of the rotation support shaft 219 for harvesting, and the rocking arm ( 230) is pivotally connected to one end of an interlocking operation member 229 having an outer shape curved in an arc when viewed from the side. The other end of the interlocking operation member 229 is linked to the reaping clutch 174 via the operating wire 231 and the spring 232 . The concave part by the external shape curved like an arc of this interlocking operation member 229, the concave part for bypassing the rotation support shaft 219 for harvesting when seen from the axial center direction of the rotation support shaft 219 for harvesting. Q is formed.

In addition, in FIG. 29, in order to make it easy to understand a structure, the interlocking operation member 224 for the threshing claw 165 and the interlocking operation member 229 for reaping clutches are described in the state which shifted the position.

The reaping clutch 174 is demonstrated.

As shown in FIGS. 22 to 25, the input pulley 235a as an input rotation body to which the power of the engine 108 is input through the fourth transmission belt 170, and the input power to the fifth transmission belt ( 173), the output pulley 235b as a reaping output rotary body transmitted to the reaping conveyance unit 103 is integrally formed by the transmission pulley 235 as one transmission rotation body, and the transmission pulley ( 235) is integrally rotatably installed on the relay transmission shaft 171. The output pulley part 235b is provided on the shaft end side of the relay transmission shaft 171 rather than the input pulley part 235a.

A concave portion 236 recessed along the axial direction is formed on one side of the axial direction of the transmission pulley 235. The relay transmission shaft 171 is rotatably built inside the tubular case 237, and the transmission pulley 235 protrudes outward from the tubular case 237 in the relay transmission shaft 171. It is integrally rotatably installed at the end of the shaft. That is, as shown in FIG. 25, the input pulley part 235a in the transmission pulley 235 is wound in a state where a plurality (specifically, two) of the fourth transmission belts 170 are arranged. While being configured as a wide multi-type belt winding section, the concave portion 236 is formed in a state located inside this multiple-type belt winding section. Then, the cylindrical case 237 in which the relay transmission shaft 171 is built is provided in a state entering the concave portion 236 .

The output pulley part 235b located on the shaft end side of the input pulley part 235a of the transmission pulley 235 is formed with a smaller diameter than the input pulley part 235a. On the other hand, the harvesting input pulley 238, which is attached to the input shaft 175 for harvesting and winds the fifth transmission belt 173 between the input pulley parts 235a, is formed with a larger diameter than the input pulley part 235a, there is. Therefore, rather than the motive power supplied to the barrel 115, the 5th transmission belt 173 transmits motive power in the form which reduces the motive power to the reaping conveyance part 103.

A boss portion 235c fitted to the relay transmission shaft 171 from the outside is formed on the inner side in the radial direction of the output pulley 235b, and a shaft end side of the boss portion 235c is formed on the relay transmission shaft 171. A small-diameter tube portion 235d that engages with the stepped portion and is fitted from the outside to the small-diameter shaft portion 171a is formed. In addition, the boss portion 235c and the relay transmission shaft 171 are interlocked by a key 239 so as to be integrally rotatable.

As shown in (a) of FIG. 24 and FIG. 25, tension is applied to the fifth transmission belt 173 at a location on the end side of the output pulley portion 235b at the shaft end of the relay transmission shaft 171. A tension clutch mechanism 240 capable of switching between an electric input state in which tension is applied and an electric disconnection state in which tension is released is provided.

The tension clutch mechanism 240 includes a tension arm 242 rotatably externally fitted and supported by a relay transmission shaft 171 via a bearing 241, and a fifth transmission belt 173 supported by the tension arm 242 and ), a coil spring 244 as a pressure mechanism that rotates and presses the tension wheel 243 acting on the tension arm 242 in a direction in which the tension wheel 243 is separated from the fifth transmission belt 173, and a driving unit Tension arm ( 242 is provided with an operating wire 245 as a linkage operating mechanism for operating the rotation.

As shown in (b) of FIG. 25, circlips 246 are attached to two places spaced apart in the axial direction in the outer circumferential portion of the bearing 241, and the rotating proximal end of the tension arm 242 is , It is inserted into the outer periphery of the bearing 241 from the outside in a state where it is fitted with a pair of circlips 246 and is prevented from coming off in the axial direction. A nut 247 is attached to the threaded portion 171b formed on the shaft end of the relay transmission shaft 171, and by this nut 247, the small-diameter tube portion 235d of the transmission pulley 235 and the bearing 241 are connected. The inner ring of is fastened and fixed.

The coil spring 244 extends over an extension arm 242a fixedly extending from the tension arm 242 and a spring accommodating portion 249 extending from the engaging member 248 formed on the side of the threshing device 104. . The locking member 248 is for position-holding the cover (not shown) which can be opened and closed covering the horizontal side of the threshing apparatus 104.

When the harvesting clutch lever 185 is operated to the disconnected position, the operating wire 245 is loosened, and the tension wheel 243 is separated from the fifth transmission belt 173 by the urging force of the coil spring 244, so that the transmission is cut off. (clutch switching state). When the reaping clutch lever 185 is operated to the connecting position, the tension arm 242 is pulled by the operating wire 245 against the urging force of the coil spring 244, and the tension wheel 243 is operated by the fifth transmission belt. 173 is applied to apply a tension force to switch to the transmission state (clutch connected state).

Therefore, the reaping clutch 174 is comprised by the 5th transmission belt 173 and the tension clutch mechanism 240.

And, as described above, the relay transmission shaft 171 in the transverse direction of the aircraft and the barrel shaft 115a in the longitudinal direction of the aircraft are interlocked through the bevel gear transmission mechanism 172, and in the relay transmission shaft 171 , The input power is distributed to the power transmitted to the harvesting conveyance part 103 via the harvesting clutch 174 and the power transmitted to the barrel 115 of the threshing device 104.

Next, a shift operation structure for traveling will be described.

As shown in Figs. 27, 31, and 32, a channel-shaped support bracket 250 as viewed from the front is formed on the transverse side of the upper longitudinally extending portion 191C of the panel support frame 191. This connection is made, and the fulcrum pin 251 is fixed in a state of protruding from this support bracket 250 in the lateral direction toward the driver's seat 107A side. Further, the rotation operation member 252 interlocked with the proximal end side of the main shift lever 186 can rotate to the fulcrum pin 251 and can be held at any rotational position by the friction holding mechanism 253. are well supported

The rotation control member 252 is formed of a series of plate bodies and has a center support portion 252a formed in a channel shape in plan view in a state where the friction holding mechanism 253 is placed therein at an intermediate position in the front and rear positions; It is provided with operation connection parts 252b located on both sides of the front and back of the central support part 252a. The lower end of the main shift lever 186 is supported inside the center support portion 252a so as to be able to swing about the axis X in the front-rear direction and to be pivotally pressed to the left and right center sides by the return spring 254. In addition, the rotation operation member 252 is configured to be pivotally operated around the transverse axial center P5 of the fulcrum pin 251 integrally by operation of the main shift lever 186 in the front-rear direction.

As shown in FIG. 31, the upper end of the main shift control rod 255 is pivotally connected to the left side surface of the front part side end in the front part side operation connection part 252b via a ball joint 256. The lower end of the main shift operation rod 255 is interlocked with the shift operation arm 257 of the main transmission 161 .

When the main shift lever 186 is operated from the neutral position located in the front and rear center to the front side, the shift control arm 257 interlocked with the main shift control rod 255 is operated, and the main shift device 161 is operated. accelerated in the forward direction. Further, when the main shift lever 186 is operated from the neutral position to the rear side, the main transmission 161 is shifted to increase speed in the reverse direction.

As shown in Fig. 32, a locking portion 258 is fixed to the right side of the front portion side operation connector 252b where the main shift operation rod 255 is connected, in a direction orthogonal to the plate surface. By providing the locking portion 258 in this way, the upper end of the main shift operating rod 255 can be installed only on the left side of the front side operation connector 252b, and it is prevented from being erroneously installed on the right side. This is because there is a possibility that the shift operation arm 257 cannot be connected satisfactorily if installed from the right side.

As shown in FIGS. 26 and 27, a rotation arm 259 capable of integrally rotating is connected to the rotation shaft 195 of the brake pedal 194, and a horizontal locking pin ( 260) is provided. In addition, a pair of operating links 261 for returning to neutral linking the brake pedal 194 and the main shift lever 186 are provided. The lower end of each operating link 261 is engagingly engaged with the locking pin 260 through the long hole 262 in the vertical direction, and the upper end is pivotally connected to the front and rear operating connecting portions 252b, respectively. .

When the brake pedal 194 is not depressed, the pair of operating links 261 can slide freely within the range of the long hole 262, and allow shift operation by the main shift lever 186. Then, when the brake pedal 194 is depressed, the main shift lever 186 is operated to either the forward operation area or the reverse operation area and is held in position by the friction holding mechanism 253, either way. By means of the operating link 261 for returning to neutral, the rotation operating member 252 can be forcibly returned to the neutral position and the main transmission 161 can be switched to the neutral state.

As described above, the lower side of the side panel 140 is provided with various operation mechanisms for linkage, and shielding plates are provided on the left and right sides of the lower side of the side panel 140 so that these operating mechanisms are not exposed to the outside. has been That is, as shown in Fig. 27, the side surface on the driver's seat 107A side is provided with a right shielding plate 263 covering the entire side surface, and on the side surface opposite to the driver's seat 107A, the upper side is provided. A left shielding plate 264 is provided which is connected to the vertical surface portion 190b of the support frame body 190 and whose lower side is connected to the front-rear direction reinforcing frame body 212.

[Another embodiment of the second embodiment]

(1) In the above embodiment, it has been shown that the reaping output rotation body 235b and the input rotation body 235a are integrally formed by one power rotation body 235, but the reaping output rotation body 235b and the input rotation body 235b The rotating body 235a may be configured as a separate rotating body.

(2) In the above embodiment, the concave portion 236 that is concavely entered along the axial direction is formed in the transmission rotating body 235, and the tubular case 237 containing the relay transmission shaft 171 is provided with the concave portion ( 236), but instead of such a configuration, the rotational body 235 is centered more than the end of the cylindrical case 237 so that the cylindrical case 237 does not overlap in the radial direction. It is good also as a structure provided in the state located outside the direction.

(3) In the above embodiment, it has been shown that the input rotary body 235a is provided with a wide multi-type belt winding section in which two transmission belts are wound in an arrayed state, but as the input rotary body, one transmission belt is used. The belt may be wound.

(4) In the above embodiment, the relay transmission shaft 171 in the transverse direction of the machine and the barrel shaft 115a in the direction of the front part of the machine are interlocked through the bevel gear transmission mechanism 172, but instead of this structure , may be configured as follows.

Separately from the relay transmission shaft 171, a barrel transmission shaft in the transverse direction of the machine is provided, and power is transmitted from the relay transmission shaft 171 to the barrel transmission shaft through a belt transmission mechanism, and the barrel transmission shaft and the machine It is good also as a structure in which the barrel shaft of the front part direction interlocks and connects via a bevel gear mechanism.

(5) In the above embodiment, the configuration is such that the tension clutch mechanism 240 is supported at the end side of the relay transmission shaft 171, but the power is transmitted by the endless rotating body 173 for output. It is good also as a structure in which the tension clutch mechanism is supported by the side rotation axis.

(6) In the above embodiment, the configuration is provided with a canopy 107B covering the upper side of the driving unit 107, but instead of the canopy 107B, it is formed in a substantially box shape and covers the entire driving unit 107. It may be a configuration provided with. And in the structure provided with such a cabin, it is good also as a structure which installs the pre-cleaner 126 in a position lower than the ceiling part of a cabin.

(7) In the said embodiment, although it showed that it applied to a normal type combine as a combine, this invention by this embodiment is applicable also to a cutting type combine.

The present invention can be applied to a threshing device of a shear throwing type combine provided with an opening that faces the barrel and water net to the horizontal outside of the body, and an opening and closing type side wall body that closes and closes this opening.

[First Embodiment]
14: threshing frame
14A: frame part
14Aa: rear edge portion
14Ac: side wall side
14Ad: lower edge portion
14d: lower side portion
16: side wall body
16A: installation part for holding mechanism
17: Quick movement
18: water net
24: opening
26: front and rear support shaft
44: gas damper
44A: piston rod
44B: cylinder tube
45: inner wall plate
45B: frame shape surface
45Ba: lower side part
46: outer wall plate
46A: lower part
47: front wall plate
48: rear wall plate
49: upper connecting member
50: lower connecting member
50A: outer side
51: ceiling plate
55: seal member
56: auxiliary member
56a: side
57: guide unit
57A: guide surface
57B: front side
57C: rear face
57D: Bottom
58: occluded space
63: connecting shaft
64: no rocking
65: connecting shaft
66: lock mechanism
67: blood-caught coupling
68: locking joint
73: first member
74: second member
B: holding mechanism
C: Descent arrest mechanism
D: position control mechanism
Da: long hole
Db: long hole
Dc: connection
Dd: projection
[Second Embodiment]
103: harvester
107: driving part
108: engine
115: quick movement
115a: coaxial shaft
170: stepless rotation body for input
171: relay transmission shaft
172: bevel gear mechanism
173: endless rotating body for output
185: clutch lever
235: electric rotating body
235a: input rotating body
235b: mowing output rotating body
236: recessed part
237: cylindrical case
240: tension clutch mechanism
242: tension arm
243: tension wheel
244: pressurization mechanism
245: linked operation mechanism

Claims (24)

A threshing frame supporting the barrel and the water net, and an opening and closing type side wall body that can open and close an opening that faces the barrel and the water net to the outside of the body,
The threshing frame has a frame portion forming the opening,
The side wall body swings up and down between a lower closed position for closing the opening and an upper open position for opening the opening, using the support shaft in the longitudinal direction as a support point,
a holding mechanism enabling holding of the side wall body in the open position;
disposing the holding mechanism at a rear edge portion of the frame portion;
The side wall body includes an inner wall plate adjacent to the water net in the closed position, an outer wall plate positioned at a distance from the outer side of the body of the inner wall plate, and a front end of the inner wall plate and a front end of the outer wall plate. A front wall plate spanning and a rear wall plate spanning the rear end of the inner wall plate and the rear end of the outer wall plate are provided, and the cross section at the closed position is formed in a rectangular shape;
The said side wall body equips the said rear wall board with the attachment part for holding mechanisms, The threshing apparatus of a shunt input type combine. According to claim 1,
The side wall body includes an upper connecting member spanning the front wall board and the rear wall board at an upper end of the side wall body and connecting the front wall board and the rear wall board, and the front wall board and the rear wall board at a lower end of the side wall body. A threshing device of a shunt input type combine, provided with a lower connecting member connecting the front wall plate and the rear wall plate across. According to claim 2,
The threshing device of the threshing-type combine which connects the upper connection member to the upper end of the threshing frame through the support shaft. According to claim 2,
the side wall body includes a top plate spanning the front wall plate and the rear wall plate, and further spanning the outer wall plate and the upper connecting member;
The threshing device of a shunt input type combine which connects the said top board to the said front wall board, the said rear wall board, the said outer wall board, and the said upper connecting member. According to claim 3,
the side wall body includes a top plate spanning the front wall plate and the rear wall plate, and further spanning the outer wall plate and the upper connecting member;
The threshing device of a shunt input type combine which connects the said top board to the said front wall board, the said rear wall board, the said outer wall board, and the said upper connecting member. According to claim 2,
The lower connecting member has an outer surface facing the lower end of the outer wall plate,
The threshing device of a shell throwing type combine, wherein the lower connecting member is disposed at an end portion of the outer wall plate side of the front wall plate and the rear wall plate, and the outer surface is brought into surface contact with the lower end portion of the outer wall plate. According to claim 1,
A scraping-feeding combine comprising a side surface on the side wall side of the frame portion and a sealing member for bringing the frame-shaped surface portion of the inner wall plate corresponding to the side surface into close contact with each other at the closed position of the side wall body. threshing device. According to claim 7,
The inner wall plate is provided with an auxiliary member that spans the front and rear ends of the inner wall plate at its lower end,
The said auxiliary member is provided with the side surface which forms the lower side surface part corresponding to the lower side surface part of the said side surface part of the said frame-shaped surface part, The threshing apparatus of a shunt input type combine. According to any one of claims 1 to 7,
The side wall body has a guide portion that enters the lower part of the water net in the closed position,
The guide portion includes a guide surface extending from the inner wall plate in a state in which the amount of downward entry of the water net in the closed position increases as the downward direction increases, and furthermore, a front surface extending from the guide surface to the inner wall plate; A threshing device of a shear throwing type combine which has a rear surface and is constituted in a box shape. According to claim 9,
The guide unit has a bottom surface extending from the guide surface to the inner wall plate and spanning the front surface and the rear surface, and configured in a box shape forming a closed space between the guide portion and the inner wall plate. The threshing device of a type combine. According to any one of claims 1 to 7,
The holding mechanism is configured by placing a gas damper that extends along with the upward swing of the side wall body to the open position across the frame portion and the side wall body,
A connecting shaft connecting the piston rod of the gas damper to the frame portion or the side wall body, and a swinging member that swings using the connecting shaft as a support point,
The swing member is disposed between the frame portion and the gas damper, and has a length that enters the middle between the cylinder tube of the gas damper and the connecting shaft as the side wall reaches the open position. The threshing device of the shunt input type combine which is set and is made to function as a lowering prevention mechanism for preventing the lowering of the side wall from the open position. According to any one of claims 1 to 7,
a locking mechanism enabling fixed holding of the side wall body in the closed position;
A threshing device of a shunt input type combine, wherein the locking mechanism is composed of a gripping fitting provided at the lower edge portion of the frame portion and a gripping fitting provided at the lower end of the side wall body. A threshing frame supporting the barrel and the water net, and an opening and closing type side wall body that can open and close an opening that faces the barrel and the water net to the outside of the body,
The threshing frame has a frame portion forming the opening,
The side wall body swings up and down between a lower closed position for closing the opening and an upper open position for opening the opening, using the support shaft in the longitudinal direction as a support point,
a holding mechanism enabling holding of the side wall body in the open position;
disposing the holding mechanism at a rear edge portion of the frame portion;
a locking mechanism enabling fixed holding of the side wall body in the closed position;
The locking mechanism is constituted by an engaging member provided at a lower edge portion of the frame portion and a engaging member provided at a lower end portion of the side wall body,
The frame portion is provided with a position adjustment mechanism that enables position adjustment in the horizontal direction of the body of the engaged coupler, the threshing device of the shunt input type combine. According to claim 13,
The frame portion includes a first member fixed to the lower edge portion and a second member supporting the gripped coupler,
Two long holes are formed in one of the first member and the second member in the transverse direction of the body, and one of the two long holes is formed on the other side of the first member and the second member. A connection portion enabling bolt connection of the first member and the second member using a long hole, and a protrusion for engaging and inserting into the other long hole so as to be movable in the transverse direction of the aircraft, the two long holes And the threshing device of the threshing unit of the shunt input type combine which constitutes the said position adjustment mechanism from the connection part and the said protrusion. A relay transmission shaft through which engine power is transmitted is provided,
The relay transmission shaft is provided with an input rotation body through which the power of the engine is input through an endless rotation body for input, and a reaping output rotation body that transmits the input power to the harvesting unit through an endless rotation body for output,
The reaping output rotating body and the input rotating body are integrally formed by one electric rotating body,
The relay transmission shaft is rotatably built inside the tubular case,
A concave inlet portion that enters the electric rotating body concavely along the axial direction is formed,
The outer end of the tubular case is provided in a state entering the concave inlet,
The power rotation body is configured so that the input rotation body is located on the inner side in the axial direction of the outer end of the tubular case, and the cutting output rotation body is located on the outer side in the axial direction of the outer end of the tubular case. become,
The input rotation body is formed of a wide multi-type belt winding section in which a plurality of transmission belts are wound in an arrayed state,
The reaping output rotating body is installed so as to be integrally rotatable at an end of a shaft protruding outward from the cylindrical case among the relay transmission shafts. According to claim 15,
A tension clutch mechanism capable of switching between an electric input state for applying tension to the endless rotary body for output and a transmission disconnection state for releasing the tension at a location on the outer end side of the reaping output rotary body at the shaft end of the relay transmission shaft. is supported, the combine. According to claim 16,
The tension clutch mechanism,
A tension arm that is rotatably fitted and supported on the outside by the relay transmission shaft;
A combine equipped with a tension wheel supported by the tension arm and acting on the endless rotational body for output. A relay transmission shaft through which engine power is transmitted is provided,
The relay transmission shaft is provided with an input rotation body through which the power of the engine is input through an endless rotation body for input, and a reaping output rotation body that transmits the input power to the harvesting unit through an endless rotation body for output,
The reaping output rotation body is provided on the outer end side of the relay transmission shaft rather than the input rotation body,
A tension clutch mechanism capable of switching between an electric input state for applying tension to the endless rotary body for output and a transmission disconnection state for releasing the tension at a location on the outer end side of the reaping output rotary body at the shaft end of the relay transmission shaft. is supported,
The tension clutch mechanism includes a tension arm rotatably externally fitted and supported by the relay transmission shaft, and a tension wheel supported by the tension arm and acting on the endless rotational body for output,
The tension arm is provided in a state adjacent to the outer end side of the relay transmission shaft with respect to the reaping output rotating body,
The combine wherein a support shaft is provided in a state extending from the tension arm to the opposite side to the outer end side of the relay transmission shaft, and the tension wheel body is rotatably supported on the support shaft. According to claim 18,
The combine in which the said tension arm is rotatably supported by the said relay transmission shaft via a bearing. According to claim 19,
The combine in which the said reaping output rotation body and the said input rotation body are integrally formed by one electric rotation body. According to claim 20,
The relay transmission shaft is rotatably built inside the tubular case,
The transmission rotating body is integrally rotatably installed at an end of a shaft protruding outward from the tubular case in the relay transmission shaft,
A concave inlet portion that enters the electric rotating body concavely along the axial direction is formed,
The combine, provided in a state where the outer end of the cylindrical case enters the concave portion. According to claim 21,
The transmission rotation body has a wide multi-type belt winding section in which a plurality of transmission belts are wound in an arrayed state, and the concave portion is formed in a state located inside the multi-type belt winding section. The combined that has become. The method of any one of claims 15 to 22,
A tension clutch mechanism capable of switching between an electric input state for applying tension to the endless rotary body for output and a transmission disconnection state for releasing the tension at a location on the outer end side of the reaping output rotary body at the shaft end of the relay transmission shaft. is supported,
The tension clutch mechanism,
A tension arm that is rotatably fitted and supported on the outside by the relay transmission shaft;
A tension wheel supported by the tension arm and acting on the endless rotational body for output is provided;
a pressing mechanism for rotating and pressurizing the tension arm in a direction in which the tension wheel body is separated from the endless rotation body for output;
Based on the operation of the clutch lever provided in the driving unit, the tension wheel resists the pressing force of the pressing mechanism and acts on the endless rotating body for output to give a tension force. A linkage operating mechanism for pivoting the tension arm is provided become,
The tension wheel body is supported at a location lower than the relay transmission shaft in the tension arm,
The pressing mechanism is connected to a portion above the relay transmission shaft in the tension arm,
The combine in which the said linkage operation mechanism is connected to the position below the said relay transmission shaft among the said tension arms. The method of any one of claims 15 to 22,
In the relay transmission shaft, the input power is distributed to the power to be transmitted to the reaping unit and the power to be transmitted to the barrel, combine.

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