JP6817530B2 - Work machine - Google Patents

Description

The present invention relates to a crop harvesting work machine provided with a harvesting work device on one side of the control unit.

The root vegetable harvester described in Prior Patent Document 1 is a work machine for harvesting crops, in which a control unit is provided on the upper part of the front side of the machine frame on the left and right sides, and left and right traveling devices are provided on the lower part on the left and right sides. It is equipped with a vertical adjustment mechanism that moves the traveling device up and down.

Japanese Patent No. 4345477

However, in the above configuration, the position of the control unit is constrained by the design, and it is necessary to change the design when changing the control position, so that there is a problem that the operability and work efficiency cannot be improved depending on the operator. ..
Further, since it is necessary to provide a transmission mechanism for transmitting the operation of each operation lever constituting the control unit, there is a problem that the mounting position cannot be easily changed.
Since the left-right distance of the traveling device cannot be changed, the left and right traveling devices cannot travel at the same height, and the traveling device is inclined to either the left or right side, which reduces operability and work efficiency. There is.

An object of the present invention is to provide a work machine having a harvesting work device on the side of a control unit, which enables a machine structure having a wide range of work responsiveness.

The invention according to claim 1 is a work machine including a machine frame (2), a control unit (3) on which an operator is boarded, and left and right traveling devices (4, 4) for traveling and supporting the machine. The frame (2) includes a control unit frame (3a) to which the control unit (3) is mounted and a travel frame (4a) to which the travel devices (4, 4) are mounted, and the control unit frame (3a). Is configured by combining square timbers in a rectangular shape, and the traveling frame (4a) is provided with one front frame member (Ea) at its front portion and one rear frame member (Eb) at its rear portion. The left and right sides of the front frame material (Ea) and the rear frame material (Eb) are connected by one side connecting frame material (Sa, Sb) to form a rectangular frame shape, and the rear frame material (Eb) is formed. Mounting reinforcing members (5, 5) for mounting the work device are provided at two locations on the left and right sides of the above, and the front frame material (Ea) and the rear frame material (Eb) are made of hollow square timbers, respectively. The hollow portion is exposed from at least one of the left and right side connecting frame members (Sa, Sb), and the left and right traveling devices (4, 4) can be adjusted to the left and right intervals on the traveling frame (4a). The left and right rut frame (6, 6) and the interval adjusting device (6a) for changing the left and right spacing of the left and right rut frames (6, 6) are provided, and the left and right traveling devices (4, 6) are provided. The rear end portion of 4) is arranged on the front side of the machine body with respect to the rear end portion of the traveling frame (4a), and is rotatably attached to the rear frame material (Eb) of the traveling frame (4a) to change the interval. 6b) is provided, and the stand (6b) is configured to be retractable within the left-right width of the traveling frame (4a) .

The invention according to claim 2 is the invention according to claim 1 , wherein the left and right width of the control unit frame (3a) is formed smaller than the left and right width of the traveling frame (4a), and the control unit frame (3a) is formed. , The traveling frame (4a) is configured to be selectively mounted on either the left or right side end, and the control frame (3a) is the control seat (7) and the position in front of the control seat (7). The front control unit (8) provided with the display panel (8a) and the side control unit (9) provided with the speed change operation lever (L1) and the transmission switching lever (L2) at the lateral positions of the control seat (7). ), And the front steering unit (8) and the side steering unit (9) are configured as separate bodies.

The invention according to claim 3 is the invention according to claim 2 , wherein the control unit frame (3a) has an engine (10), an engine cover (10a), and the control unit frame at a lateral position of the engine cover. A radiator cover (10b) configured within the left-right width of (3a) is attached, the driver's seat (7) is arranged above the engine cover (10a), and the rear part of the engine cover (10a). A visor support frame (10c) for supporting the visor that covers the upper part of the machine body is erected.

The invention according to claim 4 is the invention according to claim 2 , wherein the body frame (2) has a harvesting work device for harvesting field crops and the left and right traveling devices (4, 4) moving forward and backward. And the stepless speed change device (12) for switching the output, the left and right traveling devices (4, 4), the mission case (13) transmitted to the harvesting work device, the left and right traveling devices (4, 4), and the above. The working height of the harvesting work device and the work clutch for turning on / off the transmission to the harvesting work device, and the work height of the harvesting work device on the side of the control seat (7) and on the opposite side of the side where the side control unit (9) is provided. The second side control unit (15) provided with the work operation lever (L3) for operating the left and right traveling devices (4, 4) to change the traveling direction of the aircraft, and the shift operation lever (L1). Each operation detection member that detects the operation of the transmission switching lever (L2) and the work operation lever (L3), and the output of the stepless speed change device (12) according to the operation of the speed change operation lever (L1). The shift actuator to be changed, the clutch actuator that turns the work clutch on and off according to the operation of the transmission switching lever (L2), and the working height of the harvesting work device according to the operation of the work operation lever (L3). The elevating actuator to be changed, the strike actuator that operates the left and right traveling devices (4, 4) in accordance with the operation of the work operation lever (L3), and the control device that controls each of the devices are mounted on the side. The unit control unit (9) and the second side control unit (15) are each detachable and can be selectively arranged on the left and right sides of the control seat (7).

The invention according to claim 5 is the invention according to claim 1 , wherein an interval sensor for detecting the left-right interval of the left and right traveling devices (4, 4) is provided corresponding to the interval adjusting device (6a), and these intervals are provided. A plurality of sensors, an interval adjusting device (6a) and the rut frame (6, 6) are arranged in the front-rear direction, and when there is a difference in the left-right interval detected by the plurality of interval sensors, the interval adjusting device (6a) It is characterized in that a control device for stopping or operating a notification member is provided.

According to the first aspect of the present invention, the square members are combined in a rectangular shape to form the control unit frame (3a), and the left and right sides of the front frame material (Ea) and the rear frame material (Eb) are each side surface. By connecting with a connecting frame material (Sa, Sb) to form a rectangular frame shape, it is possible to improve the strength and form a space portion inside.
The traveling frame (4a) is provided with one front frame material (Ea) at the front portion thereof and one rear frame material (Eb) at the rear portion, whereby the traveling frame (4a) is provided at the front portion and the rear portion of the airframe frame (2). It is possible to secure the strength when mounting work equipment such as dozers, forklifts, and cranes.
In addition, by providing the mounting reinforcing members (5, 5) on which the working device is mounted, the strength required for supporting the working device can be increased on the rear side of the traveling frame (4a), so that the working device can be operated. It is stable and prevents damage due to the load received from the work equipment.
Further, the hollow portions of the front frame material (Ea) and the rear frame material (Eb) of the traveling frame (4a) are exposed from at least one of the side connecting frame materials (Sa, Sb) provided one on each side. As a result, parts such as the container mounting base mounting member and the side frame can be inserted and mounted from the side of the machine body, so that the assembly position of the parts can be easily understood and the efficiency of assembly and disassembly work is improved.
In addition, by providing the rut frame (6, 6) so that the left-right spacing can be adjusted, it becomes possible to run according to the ridge width of the field, and workability is improved.
Further, by providing the stand (6b) used for adjusting the distance on the rear frame material (Eb), the stand (6b) does not interfere when changing the left-right distance of the traveling device (4, 4). It becomes easy to change the left-right spacing of 4 and 4).
By fitting the stand (6b) within the left-right width of the traveling frame (4a) when it is stored, it is possible to prevent the stand (6b) from colliding with a wall, a utility pole, or the like and being damaged.

In the invention according to claim 2 , in addition to the effect of the invention according to claim 1 , the control frame (3a) can be arranged on either the left or right end side of the traveling frame (4a), so that the degree of freedom in design is increased. improves.
By configuring the front control unit (8) and the side control unit (9) separately, the mounting position of each unit can be changed according to the dominant hand of the operator, etc., so that operability and visibility can be improved. improves.

The invention according to claim 3 has the effect of the invention according to claim 2 , and the radiator cover (10b) fits within the left and right width of the control unit frame (3a), so that the side connecting frame material (Sa, Sb) can be provided. When the work device or the mounting table is mounted on the side, it is possible to prevent the radiator cover (10b) from interfering with the operation of the working device or the mounted object on the mounting table, so that the work efficiency is improved.
By providing the visor support frame (10c) at the rear of the engine cover (10a), at least the upper part of the driver's seat (7) can be covered with a visor or the like, so that the operator can be protected from sunlight and rain.

In the invention according to claim 4 , in addition to the effect of the invention according to claim 2 , the operation of each operation lever is detected by the detection member, and the operation of each actuator is controlled to control the operation of the side control unit (9) and the second. Since the number of parts to be rearranged when changing the arrangement position of the side control unit (15) can be reduced, the efficiency of assembly and disassembly work is improved.
Since the side control unit (9) and the second side control unit (15) can be selectively arranged on the left and right sides of the control seat (7), the arrangement can be easily operated by the operator. Improves sexuality and work efficiency.

In the invention according to claim 5 , in addition to the effect of the invention according to claim 1 , by providing a plurality of interval adjusting devices (6a), a difference in left-right spacing occurs in the front-rear direction of the left and right traveling devices (4, 4). Since this can be prevented, the traveling direction of the aircraft is prevented from being disturbed, and the traveling devices (4, 4) are prevented from being damaged.
Further, by detecting the left-right spacing of the left and right traveling devices (4, 4) with a plurality of spacing sensors, some of the spacing adjusting devices (6a) do not move when adjusting the left-right spacing, and the traveling devices (4, 4) do not move. Since it is possible to prevent a load from being applied to the traveling device (4, 4), damage to the traveling device (4, 4) is prevented.

Side view of the basic configuration of the work machine Front view of the basic components of the work machine Plan view of the airframe frame Rear view of a work machine (basic configuration) with different specifications Plan view of a work machine (basic configuration) with different specifications

An embodiment specifically configured based on the above technical idea will be described below with reference to the drawings. In the description, it is referred to as front / rear and left / right with reference to the forward direction F of the working machine.

The passenger-type harvesting work machine 1 according to the present invention supports the control unit 3 on the left and right front portions of the machine frame 2 as shown in FIGS. 1 and 2 in order from the side view and the front view of the basic constituent parts. , A harvesting work unit (not shown) is provided on the other side of the control unit 3 and a harvest processing unit (not shown) is provided on the rear side of the control unit 3 with respect to the basic components including the left and right traveling devices 4 and 4 that support the field traveling. It is composed of. In the following, the basic components excluding the harvesting work section and the harvest processing section will be described.

(Airframe frame)
As shown in FIG. 3, the airframe frame 2 is composed of a control unit frame 3a on which the control unit 3 is mounted and a travel frame 4a on which the left and right travel devices 4 and 4 are mounted.
The control unit frame 3a and the traveling frame 4a are configured by arranging square members in a rectangular shape, and one side of the control unit frame 3a and the traveling frame 4a is connected by one side connecting frame material Sa, and is in front of the traveling frame 4a . The portion is composed of one front frame material Ea, and the rear portion of the traveling frame 4a is composed of one rear frame material Eb.

By arranging the square members in a rectangular shape to form the control unit frame 3a and the traveling frame 4a, the airframe frame 2 having the above configuration can improve the strength and form a space portion inside.
By connecting the control unit frame 3a and the traveling frame 4a with one side connecting frame member Sa, the strength of the entire body frame 2 can be improved.

By forming the front part of the traveling frame 4a with one front frame material Ea and the rear part of the traveling frame 4a with one rear frame material Eb, a dozer, a forklift, a crane, etc. are attached to the front part and the rear part of the airframe frame 2. It is possible to secure the strength when mounting the work equipment of.
Further, by forming the upper surface of the rear frame material Eb flat, it is possible to provide a loading platform or a step for luggage.

A mounting reinforcing member 5 for mounting a work device on a corner formed by the rear frame material Eb and the side connecting frame material Sa and a corner formed by the rear frame material Eb and the side connecting frame material Sb on the other side of the traveling frame 4a. , 5 are provided respectively, and the front frame material Ea and the rear frame material Eb are composed of hollow square lumbers, and the hollow portions are exposed from the side connecting frame materials Sa and Sb.

By providing the mounting reinforcing members 5 and 5 for mounting the working device in this way, the strength required for supporting the working device can be increased on the rear side of the traveling frame 4a, so that the operation of the working device is stabilized. , Damage due to the load received from the work equipment is prevented. A crane or the like can be mounted by using the mounting reinforcing member 5 at the corner of the rear frame as a pedestal.

Further, by exposing the hollow portions of the front frame material Ea and the rear frame material Eb of the traveling frame 4a from the side connecting frame materials Sa and Sb, parts such as the container mounting base mounting member and the side frame can be exposed from the side of the machine body. Since it can be inserted and attached, the assembly position of the parts is easy to understand, and the efficiency of assembly and disassembly work is improved.

In addition, the rear frame material portion can be used as a mounting space for a hybrid battery, PU, etc. as a double floor structure, and a hard point can be provided to attach a towing attachment.

As shown in FIG. 4, the traveling frame 4a includes left and right rutted frames 6 and 6 that support the left and right traveling devices 4 and 4 so that the left and right spacing can be adjusted, and the left and right rut frame 6 , 6 are provided with an interval adjusting device 6a for changing the left-right spacing, and the rear ends of the left and right traveling devices 4 and 4 are arranged on the front side of the machine body from the rear end of the traveling frame 4a, and the rear frame of the traveling frame 4a. A stand 6b for changing the interval is rotatably provided on the material Eb, and the stand 6b can be stored within the left and right widths of the traveling frame 4a.

As described above, by providing the rutted frames 6 and 6 so that the left-right spacing can be adjusted, it becomes possible to run according to the ridge width of the field, and workability is improved.
By providing the stand 6b on the rear frame material Eb, the stands 6b do not interfere with each other when changing the left-right spacing of the traveling devices 4 and 4, so that the left-right spacing of the traveling devices 4 and 4 can be easily changed.
By configuring the stand 6b so that it fits within the left and right widths of the traveling frame 4a when stored, it is possible to prevent the stand 6b from colliding with a wall, a utility pole, or the like and being damaged.

The rutted frames 6 and 6 of the traveling section can slide to the left and right only on one side, and a stand 6b is provided on the same side. After raising the aircraft when the vehicle is stopped, the stand 6b is used to support the aircraft and retract the horizontal swing arm. The tread can be adjusted.

Further, when the rolling frames of the traveling devices 4 and 4 are shaped in the forward direction, there is a problem that the tracks are easily removed when moving backward. Therefore, by making the crawler side surface shape into the shape of the ship floor on both the forward side and the reverse side, The front-back layout is possible.

(Control section)
The left and right width of the control frame 3a is formed to be smaller than the left and right width of the traveling frame 4a so that the control frame 3a can be selectively attached to either the left or right side end of the traveling frame 4a (the example is a movable type by a guide roller). It is configured to include a control seat 7, a front control unit 8, and a side control unit 9.

The front control unit 8 is provided with a display panel 8a and is arranged on the front side of the control seat 7 as shown in FIG. 5 in a plan view of the airframe configuration. The side control unit 9 includes a shift operation lever L1 and a transmission switching lever L2 for clutch on / off, and is configured separately from the front control unit 8 and is arranged on the side of the control seat 7.

By making it possible to arrange the control unit frame 3a on either the left or right end side of the traveling frame 4a in this way, the degree of freedom in design can be improved, and the front side control unit 8 and the side control unit 9 can be arranged. By configuring it as a separate body, the mounting position of each unit can be changed according to the dominant hand of the operator, so that operability and visibility are improved.

Further, by using the side connecting frame material Sa as a large diameter material, an extension configuration is possible, and since the arrangement of the control unit frame 3a can be selected on either the left or right side, the left and right positions of the harvesting work unit can be selected. By separately configuring the front control unit 8 and the side control unit 9, a free layout is possible.

(Viser support frame)
The engine 10, the engine cover 10a, and the radiator cover 10b configured within the left-right width of the control frame 3a at the lateral position of the engine cover are mounted on the control frame 3a, and the control is performed on the upper part of the engine cover 10a. Along with arranging the seat 7, a visor support frame 10c that supports the visor that covers the upper part of the fuselage is erected inside and behind the fuselage of the engine cover 10a.

By fitting the radiator cover 10b within the left and right widths of the control unit frame 3a in this way, the radiator cover 10b can be attached to the side of the side connecting frame members Sa and Sb when a work device such as a carrier or a mounting table is attached. Since it is possible to prevent the operation of the working device and the interference with the mounted object on the mounting table, the working efficiency is improved.

By providing the visor support frame 10c with a reinforced mast frame or the like inside and behind the engine cover 10a, at least the upper part of the cockpit 7 can be covered with the visor or the like, so that the operator is protected from sunlight and rain. be able to.

(Side control unit and second side control unit)
The machine frame 2 includes a harvesting work device (not shown) for harvesting field crops, a stepless speed changer 12 for switching forward / backward movement and output of the left and right traveling devices 4 and 4, and left and right traveling devices 4 and 4. The mission case 13 that transmits to the harvesting work device, the work clutch that turns on and off the transmission to the left and right traveling devices 4 and 4, and the harvesting work device, and the side of the control seat 7 and the side of the side control unit 9. On the opposite side, the work height of the harvesting work device and the second side control unit 15 provided with the work operation lever L3 for operating the left and right traveling devices 4 and 4 to change the traveling direction of the aircraft according to the work. Each operation detection member that detects the operation of the speed change operation lever L1, the transmission switching lever L2, and the work operation lever L3, the speed change actuator that changes the output of the stepless speed change device 12 according to the operation of the speed change operation lever L1, and the transmission. A clutch actuator that turns the work clutch on and off according to the operation of the switching lever L2, an elevating actuator that changes the working height of the harvesting work device according to the front-back operation of the work operation lever L3, and a left-right operation of the work operation lever L3. A strike actuator that operates the left and right traveling devices 4 and 4 and a control device that controls each of the above devices are mounted, and the side control unit 9 and the second side control unit 15 are detachable and detachable, respectively. , It is configured so that it can be selectively arranged on the left and right sides of the driver's seat 7.

In this way, by detecting the operation of each operation lever with the detection member and controlling the operation of each actuator, the number of parts to be rearranged when changing the arrangement positions of the side control unit 9 and the second side control unit 15 can be determined. Since it can be reduced, the efficiency of assembly and disassembly work is improved.

Since the side control unit 9 and the second side control unit 15 can be selectively arranged on the left and right sides of the control seat 7, the arrangement can be easily operated by the operator, so that the operability and work efficiency are improved. improves.

In addition, by configuring the lever guide integrally with the seat, it is possible to support a free layout by unitizing.
A work operation lever L3, an HST lever, and a clutch-related operation panel are attached to the left and right sides of the operation seat 7, and the work operation lever L3 is a side stick type and is a drive-by-wire connection so that the left and right can be exchanged.

Further, by attaching a lever guide such as a work operation lever guide to the seat and making it foldable up and down like an armrest, getting on and off is easy.

The display panel 8a, which is the front main panel, can be configured as an inexpensive and compact information terminal by using a touch panel, and by supporting the touch panel with a movable arm, it is easy to adjust when getting on and off and to make it easy to see. Become.
In addition, the main key can be abolished by making the touch panel removable and by mounting the touch panel at the time of starting and configuring an operation key that can be started by inputting a password.

The wheel pipe and drive shaft portion of the transmission case 13 are configured to be slidable to the left and right, so that running power can be transmitted even when the tread is changed, and the slide portion is provided with a stretchable waterproof and dustproof cover.

The engine 10 has a motor for traveling and regeneration built in the flywheel, and the output pulley attached to the flywheel is transmitted by moving the HST while switching between engine rotation and motor rotation to drive a work mission and a traveling mission. The system can be miniaturized.

Further, when the engine speed is reduced, the engine rotation is suppressed and fuel consumption can be ensured by keeping the HST input rotation speed at or above the minimum operating speed (2000 rpm) by assisting the rotation with the traveling motor.
By incorporating an engine motor switching clutch in the flywheel, it is possible to keep the engine size constant.

When the engine speed decreases due to the load, it can be compensated by the rotation of the motor by connecting the clutch to the motor.
In addition, the power generation motor regeneratively generates electricity with a single brake when the HST is stopped or turning.

The side panel of the driver's seat is configured so that it can be equipped by wiring from a hybrid battery PU such as an AC100V outlet, USB, HDMI terminal (registered trademark), to secure a power source for charging patch panel terminals and smartphones. can do.

The left and right rutted arm frames are divided into left and right movable, and the left and right divided arm frames are connected by a center jack, and by inserting and turning the handle from the side, the jack can be expanded and the tread can be changed. Configure to.
By providing a slide roller on the slide portion of the rut frame, smooth operation is possible.

By integrating the engine mount frame with the operation seat 7, the left and right positions of the engine and the operation seat can be changed integrally, and the layout can be easily changed.

An electric motor is installed in the operating part of the center jack so that the tread can be changed in synchronization at the same time in the front and rear.

Spacing sensors for detecting the left-right spacing of the left and right traveling devices 4 and 4 are provided corresponding to the spacing adjusting device 6a, and a plurality of spacing sensors, spacing adjusting devices 6a and rut spacing frames 6 and 6 are arranged in the front-rear direction. A control device is provided to stop the interval adjusting device 6a or operate the notification member when there is a difference in the left-right interval detected by the interval sensor.

By providing a plurality of spacing adjusting devices 6a in this way, it is possible to prevent a difference in the left-right spacing between the left and right traveling devices 4 and 4 in the front-rear direction, so that the traveling direction of the aircraft is prevented from being disturbed. Damage to the traveling devices 4 and 4 is prevented.

Further, by detecting the left-right spacing of the left and right traveling devices 4 and 4 with a plurality of spacing sensors, some of the spacing adjusting devices do not move when adjusting the left-right spacing, and a load is applied to the traveling devices 4 and 4. Since it can be prevented, damage to the traveling devices 4 and 4 is prevented.

The front and rear position sensors adjust the distance between the left and right sides of the traveling bogie, and the front and rear treads are aligned.
The drive sprocket portion is slidable to a position corresponding to the position of the crawler by configuring the tip portion of the traveling frame fixing portion of the transmission to be slidable.

The traveling frame is divided into left and right, and the intermediate frame can be replaced with a frame having a different length, so that a frame suitable for the harvest field can be constructed at low cost.
The connecting portion of the intermediate frame can be positioned with high accuracy by forming an inlay and engaging the unevenness.
The height of the upper frame can be changed by separating it from the running rut frame and inserting a spacer between them.

(Technical point)
The technical points of the harvesting machine having the above configuration are summarized as follows.
First, the airframe frame 2 is composed of a control unit frame 3a on which the control unit 3 is mounted and a travel frame 4a on which the travel devices 4 and 4 are mounted, and the control unit frame 3a and the travel frame 4a have rectangular lumber. The control unit frame 3a and one side of the traveling frame 4a are connected by one side connecting frame material Sa, and the front part of the traveling frame 4a is composed of one front frame material Ea. The rear part of 4a is composed of one rear frame material Eb.

In the work machine having the above configuration, the square members are arranged in a rectangular shape to form the control unit frame 3a and the traveling frame 4a, so that the strength can be improved and a space portion can be formed inside.
Further, by connecting the control unit frame 3a and the traveling frame 4a with one side surface connecting frame member Sa, the strength of the entire body frame 2 can be improved.
By configuring the front part of the traveling frame 4a with one front frame material Ea and the rear part with one rear frame material Eb, work such as a dozer, a forklift, and a crane is performed on the front part and the rear part of the machine frame 2. It is possible to secure the strength when mounting the device.

Secondly, the work device is attached to the corner portion formed by the rear frame material Eb and the side connecting frame material Sa and the corner portion formed by the rear frame material Eb and the other side side connecting frame material Sb of the traveling frame 4a. The mounting reinforcing members 5 and 5 are provided, respectively, and the front frame member Ea and the rear frame member Eb are formed of hollow square timbers, and the respective hollow portions are exposed from the side connecting frame members Sa and Sb.

By providing the mounting reinforcing members 5 and 5 for mounting the working device in the working machine having the above configuration, the strength required for supporting the working device can be increased on the rear side of the traveling frame 4a, so that the working device can be operated. It is stable and prevents damage due to the load received from the work equipment.
By exposing the hollow portions of the front frame material Ea and the rear frame material Eb of the traveling frame 4a from the side connecting frame materials Sa and Sb, parts such as the container mounting base mounting member and the side frame are inserted from the side of the machine body. Since it can be installed with, the assembly position of the parts is easy to understand, and the efficiency of assembly and disassembly work is improved.

Thirdly, on the traveling frame 4a, the left and right rutted frames 6 and 6 that support the left and right traveling devices 4 and 4 so as to be adjustable in the left and right spacing, and the interval for changing the left and right spacing between the left and right rutted frames 6 and 6 Adjusting devices 6a are provided, and the rear ends of the left and right traveling devices 4 and 4 are arranged on the front side of the machine body from the rear ends of the traveling frame 4a, and the intervals are rotatably changed to the rear frame material Eb of the traveling frame 4a. A stand 6b for use is provided, and the stand 6b can be stored within the left-right width of the traveling frame 4a.

Since the rutted frames 6 and 6 are provided so as to be adjustable in the left-right spacing, the working machine having the above configuration can run according to the ridge width of the field, and the workability is improved.
Further, by providing the stand 6b used for adjusting the interval on the rear frame material Eb, the stand 6b does not interfere when changing the left-right spacing of the traveling devices 4 and 4, so that the left-right spacing of the traveling devices 4 and 4 can be changed. It will be easier.
Since the stand 6b fits within the left-right width of the traveling frame 4a when stored, it is possible to prevent the stand 6b from colliding with a wall, a utility pole, or the like and being damaged.

Fourth, the left-right width of the control frame 3a is formed to be smaller than the left-right width of the traveling frame 4a, and the control frame 3a can be selectively mounted on either the left or right side end of the traveling frame 4a. The control frame 3a includes a control seat 7, a front control unit 8 provided with a display panel 8a at a position in front of the control seat 7, and a shift operation lever L1 and a transmission switching lever L2 at a side position of the control seat 7. The provided side control unit 9 is provided, and the front side control unit 8 and the side control unit 9 are separately configured.

In the working machine having the above configuration, the control unit frame 3a can be arranged on either the left or right end side of the traveling frame 4a, so that the degree of freedom in design is improved.
Further, by configuring the front control unit 8 and the side control unit 9 as separate bodies, the mounting position of each unit can be changed according to the dominant hand of the operator or the like, so that operability and visibility are improved. ..

Fifth, the engine 10, the engine cover 10a, and the radiator cover 10b configured within the left-right width of the control frame 3a at the lateral position of the engine cover are attached to the control frame 3a, and the engine cover 10a is attached. The driver's seat 7 is arranged at the upper part, and the visor support frame 10c that supports the visor that covers the upper part of the body is erected inside and at the rear of the engine cover 10a.

In the work machine having the above configuration, the radiator cover 10b fits within the left and right widths of the control unit frame 3a, so that the radiator cover 10b can be mounted on the side of the side connecting frame members Sa and Sb. Since it is possible to prevent the operation of the working device and the interference with the mounted object on the mounting table, the working efficiency is improved.
Further, by providing the visor support frame 10c inside and at the rear of the engine cover 10a, at least the upper part of the control seat 7 can be covered with a visor or the like, so that the operator can be protected from sunlight and rain.

Sixth, the body frame 2 includes a harvesting work device for harvesting field crops, a stepless speed changer 12 for switching forward / backward movement and output of the left and right traveling devices 4 and 4, and left and right traveling devices 4 and 4. A mission case 13 for transmitting to the harvesting work device, a work clutch for turning on / off the transmission to the left and right traveling devices 4 and 4, and the harvesting work device, and a side control unit 9 on the side of the control seat 7 are provided. On the opposite side of the side, the work height of the harvesting work device and the second side control unit 15 provided with the work operation lever L3 for operating the left and right traveling devices 4 and 4 to change the traveling direction of the aircraft, and the speed change operation. Each operation detection member that detects the operation of the lever L1, the transmission switching lever L2, and the work operation lever L3, the speed change actuator that changes the output of the stepless speed change device 12 according to the operation of the speed change operation lever L1, and the clutch on / off. A clutch actuator that turns the work clutch on and off according to the operation of the transmission switching lever L2, an elevating actuator that changes the working height of the harvesting work device according to the operation of the work operation lever L3, and an operation of the work operation lever L3. A strike actuator that operates the left and right traveling devices 4 and 4 according to the above and a control device that controls each of the above devices are attached, and the side control unit 9 and the second side control unit 15 are detachable from each other. At the same time, the driver's seat 7 can be selectively arranged on the left and right sides.

The work machine having the above configuration is rearranged when the arrangement positions of the side control unit 9 and the second side control unit 15 are changed by detecting the operation of each operation lever with the detection member and controlling the operation of each actuator. Since the number of parts can be reduced, the efficiency of assembly and disassembly work is improved.
Further, since the side control unit 9 and the second side control unit 15 can be selectively arranged on the left and right sides of the control seat 7, the arrangement can be easily operated by the operator, so that the operability and work efficiency can be improved. Is improved.

Seventh, spacing sensors for detecting the left-right spacing of the left and right traveling devices 4 and 4 are provided corresponding to the spacing adjusting device 6a, and a plurality of these spacing sensors, spacing adjusting devices 6a and rut spacing frames 6 and 6 are provided in the front-rear direction. A control device is provided so as to stop the interval adjusting device 6a or operate the notification member when there is a difference between the left and right intervals detected by the plurality of interval sensors.

By providing a plurality of interval adjusting devices 6a in the work machine having the above configuration, it is possible to prevent a difference in the left-right distance between the left and right traveling devices 4 and 4 in the front-rear direction, so that the traveling direction of the machine body is prevented from being disturbed. At the same time, damage to the traveling devices 4 and 4 is prevented.
In addition, by detecting the left-right spacing of the left and right traveling devices 4 and 4 with a plurality of spacing sensors, some of the spacing adjusting devices do not move when adjusting the left-right spacing, and a load is applied to the traveling devices 4 and 4. Since it can be prevented, damage to the traveling devices 4 and 4 is prevented.

1 Harvesting machine (basic component)
2 Aircraft frame 3 Maneuvering unit 3a Maneuvering unit frame 4 Traveling device 4a Traveling frame 5 Mounting reinforcement member 6 Ruts frame 6a Spacing adjustment device 6b Stand 7 Controlling seat 8 Front steering unit 8a Display panel 9 Side steering unit 10 Engine 10a Engine cover 10b radiator cover 10c visor support frame 12 continuously variable transmission 13 mission case 15 second side control unit Ea front frame material Eb rear frame material L1 speed change operation lever L2 transmission switching lever L3 work operation lever Sa side connection frame material Sb side surface Connecting frame material

Claims (5)

In a work machine provided with an airframe frame (2), a control unit (3) on which an operator is boarded, and left and right traveling devices (4, 4) for traveling and supporting the airframe.
The airframe frame (2) includes a control unit frame (3a) to which the control unit (3) is mounted, and a travel frame (4a) to which the travel devices (4, 4) are mounted.
The control frame (3a) is formed by combining square timbers in a rectangular shape.
The traveling frame (4a) is provided with one front frame material (Ea) at the front portion thereof and one rear frame material (Eb) at the rear portion.
The left and right sides of the front frame material (Ea) and the rear frame material (Eb) are connected by one side connecting frame material (Sa, Sb) to form a rectangular frame .
Mounting reinforcing members (5, 5) for mounting the work device are provided at two positions on the left and right of the rear frame material (Eb), and the front frame material (Ea) and the rear frame material (Eb) are hollow. It is composed of square timber, and each hollow portion is exposed from at least one of the side connecting frame members (Sa, Sb), one on each side.
The left and right rutted frames (6, 6) that support the left and right running devices (4, 4) so as to be adjustable on the left and right running frames (4a), and the left and right rutted frames (6, 6). An interval adjusting device (6a) for changing the left-right interval is provided.
The rear ends of the left and right traveling devices (4, 4) are arranged on the front side of the machine body with respect to the rear end of the traveling frame (4a), and rotate around the rear frame material (Eb) of the traveling frame (4a). A working machine characterized in that a stand (6b) for changing an interval is provided as much as possible, and the stand (6b) can be stored within the left-right width of the traveling frame (4a) . The left-right width of the control unit frame (3a) is formed to be smaller than the left-right width of the traveling frame (4a), and the control unit frame (3a) is attached to either the left or right side end of the traveling frame (4a). The control frame (3a) is configured to be selectively mountable, and the control frame (3a) includes a control seat (7) and a front control unit (8) provided with a display panel (8a) at a position in front of the control seat (7). A side control unit (9) provided with a speed change operation lever (L1) and a transmission switching lever (L2) at a lateral position of the control seat (7), the front control unit (8) and the side portion. The work machine according to claim 1, wherein the control unit (9) is separately configured. The control unit frame (3a) includes an engine (10), an engine cover (10a), and a radiator cover (10b) configured within the left-right width of the control unit frame (3a) at a lateral position of the engine cover. The driver's seat (7) is arranged on the upper part of the engine cover (10a), and the visor support frame (10c) for supporting the visor covering the upper part of the machine body stands on the rear part of the engine cover (10a). The working machine according to claim 2 , wherein the working machine is provided. The body frame (2) includes a harvesting work device for harvesting field crops, a stepless speed changer (12) for switching forward / backward movement and output of the left and right traveling devices (4, 4), and the left and right traveling devices (4). A mission case (13) transmitted to the traveling device (4, 4) and the harvesting work device, a work clutch for turning on / off the transmission to the left and right traveling devices (4, 4) and the harvesting work device, and the control. The aircraft is operated by operating the working height of the harvesting work device and the left and right traveling devices (4, 4) on the side of the seat (7) and on the opposite side of the side where the side control unit (9) is provided. The second side control unit (15) provided with the work operation lever (L3) for changing the traveling direction of the above, the shift operation lever (L1), the transmission switching lever (L2), and the work operation lever (L3). Each operation detection member (S1, S2, S3) that detects the operation, a speed change actuator that changes the output of the stepless speed change device (12) according to the operation of the speed change operation lever (L1), and the transmission switching. A clutch actuator that turns on and off the work clutch according to the operation of the lever (L2), an elevating actuator that changes the work height of the harvesting work device according to the operation of the work operation lever (L3), and the work operation. A strike actuator that operates the left and right traveling devices (4, 4) in accordance with the operation of the lever (L3) and a control device that controls each of the devices are mounted, and the side control unit (9) and the first The work machine according to claim 2 , wherein the two-side control unit (15) is detachable and can be selectively arranged on the left and right sides of the control seat (7). Spacing sensors for detecting the left-right spacing of the left and right traveling devices (4, 4) are provided corresponding to the spacing adjusting device (6a), and these spacing sensors, the spacing adjusting device (6a), and the rut frame (6, 4) are provided. A plurality of 6) are arranged in the front-rear direction, and a control device is provided to stop the interval adjusting device (6a) or operate the notification member when there is a difference in the left-right interval detected by the plurality of interval sensors. The working machine according to claim 1 , wherein the working machine is characterized by the above.