WO2001028799A1 - Machine a planter le riz - Google Patents

Machine a planter le riz Download PDF

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Publication number
WO2001028799A1
WO2001028799A1 PCT/JP1999/005739 JP9905739W WO0128799A1 WO 2001028799 A1 WO2001028799 A1 WO 2001028799A1 JP 9905739 W JP9905739 W JP 9905739W WO 0128799 A1 WO0128799 A1 WO 0128799A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
auxiliary brake
case
pulley
brake mechanism
Prior art date
Application number
PCT/JP1999/005739
Other languages
English (en)
Japanese (ja)
Inventor
Osamu Takeuchi
Tsugunori Yamamoto
Original Assignee
Yanmar Agricultural Equipment Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yanmar Agricultural Equipment Co., Ltd. filed Critical Yanmar Agricultural Equipment Co., Ltd.
Priority to CNB998145319A priority Critical patent/CN1275793C/zh
Priority to KR1020017007558A priority patent/KR100611812B1/ko
Priority to PCT/JP1999/005739 priority patent/WO2001028799A1/fr
Publication of WO2001028799A1 publication Critical patent/WO2001028799A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/20—Parts of seeders for conducting and depositing seed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • B60K23/02—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for main transmission clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/20—Off-Road Vehicles
    • B60Y2200/22—Agricultural vehicles

Definitions

  • the present invention relates to a rice transplanter, and more particularly to an auxiliary brake mechanism for stopping an airframe.
  • Conventional rice transplanters are equipped with a planting machine that can move up and down at the rear of a self-propelled traveling machine.
  • the traveling machine is equipped with a traveling unit consisting of front and rear wheels and interlocking mechanisms at the bottom of the machine frame.
  • a prime mover section consisting of an engine, a transmission, etc. is arranged at the front of the body frame, a clutch mechanism is provided in the power transmission path from the prime mover section to the traveling section, and an auxiliary brake mechanism is attached to the clutch mechanism.
  • the gears were linked via a brake link mechanism.
  • the clutch mechanism With the clutch-brake interlocking mechanism, the clutch mechanism is connected, the auxiliary brake mechanism is released, and the vehicle is in a running position for normal planting work by running the traveling machine, and the clutch mechanism is disconnected.
  • the auxiliary brake mechanism When the auxiliary brake mechanism is in operation and the traveling machine is stopped to perform seedling connection work, or when crossing a ridge or loading / unloading to / from a truck, the machine is intentionally moved by the operator.
  • An interlocking operation lever was provided that was able to change the attitude to the aircraft stopping attitude to be stopped. During traveling or planting work, the interlocking operation lever is set to the body running posture, and the machine is run. On the other hand, when seedlings are set on the planting machine, when crossing ridges or loading on trucks, At the time of loading / unloading, the interlocking operation lever was changed to the aircraft stop posture to stop the aircraft.
  • a mission case is linked to an engine
  • a front and rear axle case is linked to the same mission case
  • a pair of left and right wheels are linked to each axle case.
  • a clutch mechanism and an auxiliary brake mechanism are interposed between them.
  • the conventional rice transplanter has the following problems to be solved.
  • the auxiliary brake mechanism is provided on a part of the pulley on the input shaft of the mission case and is not exposed to the outside. Moreover, there is not enough space for maintenance, so The auxiliary brake mechanism could not be easily repaired or inspected, and maintenance was not good.
  • the present invention includes an auxiliary brake mechanism for stopping the airframe, and the auxiliary brake mechanism is configured to operate in conjunction with a clutch mechanism provided on a power transmission path from the prime mover section to the traveling section.
  • a transmission case is linked to the engine via a clutch mechanism
  • a pair of left and right rear wheels are linked to the front axle case and the rear axle case to the same mission case, and the engine is powered by an engine.
  • a power transmission path for transmission from the vehicle to the rear wheels is formed, and the auxiliary brake mechanism is provided downstream of the mission case in the power transmission path.
  • the auxiliary brake mechanism is located immediately behind the transmission case, and It is arranged above the lowermost end of the mission case.
  • a steering yoke is connected to the steering wheel, and a pair of left and right front wheels are connected to the steering yoke, so that the left and right front wheels can be steered by the steering wheel, and directly below the auxiliary brake mechanism.
  • the steering yoke is set horizontally at the position.
  • an auxiliary brake mechanism for stopping the aircraft is provided, and the auxiliary brake mechanism is configured to operate in conjunction with a clutch mechanism provided on a power transmission path from the prime mover section to the traveling section.
  • the mission case is linked to the engine via the clutch mechanism
  • the rear case is linked to the mission case via the drive shaft
  • the drive shaft is equipped with an auxiliary brake mechanism.
  • the auxiliary brake mechanism has a brake pulley on the drive shaft, a brake pad on the brake pulley so that it can be freely attached and detached, and mud on the brake pulley attached to the outer peripheral surface of the brake pulley.
  • a mud removal mechanism has been set up to remove the soil.
  • the mud removing mechanism is configured such that a scraper made of an elastic body is rotatably provided on the support arm, and the scraper is pressed against the outer peripheral surface of the brake pulley.
  • the mud removal mechanism is located at a position directly in the direction of the mission case and above the lowermost end of the mission case.
  • the present invention includes an auxiliary brake mechanism for stopping the airframe, and the auxiliary brake mechanism is configured to operate in conjunction with a clutch mechanism provided on a power transmission path from the prime mover unit to the traveling unit.
  • the auxiliary brake mechanism is equipped with a brake pulley on a drive shaft for transmitting the power of the prime mover section to the traveling section, and a brake actuating body is freely attached and detached on the outer peripheral surface of the brake pulley.
  • a scraper for removing mud adhering to the outer peripheral surface of the brake pulley is provided on the outer peripheral surface of the brake pulley, and the brake operating body and the scraper are supported by the same base member. did.
  • a brake operating body and a scraper are provided at one of the left and right sides of the base member, and a fixing means for fixing the base member to the body frame is provided at the other side position of the base member.
  • the fixing means is configured so that the fixing position of the base member can be adjusted.
  • FIG. 2 is a plan view showing a body frame.
  • FIG. 3 is a left side view showing a clutch-brake interlocking mechanism.
  • FIG. 1 A first figure.
  • FIG. 3 is a rear view showing an auxiliary brake mechanism.
  • Sectional drawing which shows a brake support body and a boss.
  • FIG. 2 is a plan view showing one hydraulic cylinder.
  • FIG. 1 A first figure.
  • the left view which shows a mission case.
  • the riding rice transplanter 1 has a planting machine 3 connected via a lifting mechanism 4 to a rear part of a traveling body 2 configured to be self-propelled so as to be able to move up and down.
  • the traveling body 2 has a traveling section 6 arranged at a lower portion of the body frame 5, while a motor section 7 is arranged at an upper front portion of the body frame 5, and is located immediately behind the prime mover section 7.
  • the operation control unit 8 is arranged at the position.
  • the body frame 5 is installed between a pair of left and right rectangular main pipes 9, 10 extending in the front-rear direction and the front ends of the main pipes 9, 10.
  • a front frame (not shown) having a rectangular cross section forms a U-shaped main frame structure 11 in a plan view, and a connecting rod 12 is provided in the front halfway of the left and right main pipes 9 and 10 of the main frame structure 11.
  • a pair of left and right cylindrical sub-pipes 14, 15 extended in the front-rear direction and between the middle of the sub-pipes 14, 15
  • a lower frame member 17 composed of a cylindrical connecting pipe 16 erected at the bottom is connected.
  • reference numeral 18 denotes a connecting pipe having a rectangular cross section.
  • the body frame 5 includes a rear end portion of the lower frame structure 17 and a main frame.
  • a gate-shaped rear frame component 21 composed of a cylindrical upper pipe 20 erected between them is continuously provided, and an upper pipe 20 is provided between the rear frame component 21 and the lower frame component 17.
  • An upper frame structure 23 composed of a pair of left and right inclined pipes 22, 22 for connecting the middle part of the connecting pipe 16 and the middle part of the connecting pipe 16 in an inclined manner with a low front and a rear height.
  • reference numeral 96 denotes a gate-shaped seat support pipe laid between the inclined pipes 22, 22.
  • the prime mover unit 7 has a flat engine mounting table 97 laid between the front sides of the left and right main pipes 9 and 10 of the body frame 5, and is mounted on the engine mounting table 97. While the engine 25 as a prime mover is mounted, a mission case 26 as a transmission mechanism is mounted below the engine mounting table 97, and the engine 25 and the transmission case 26 are connected via a two-stage high-low belt type transmission mechanism 27. Linked and linked.
  • the planting machine 3 is linked to the engine 25 via a planting interlocking mechanism 28.
  • the motor unit 7 transmits the power of the engine 25 to the traveling unit 6 and the planting machine 3 via the transmission case 26.
  • the motor unit 7 has a fuel tank (not shown) disposed directly above the engine 25, and covers the fuel tank and the engine 25 with a bonnet 29. Spare seedling stands 30 and 30 are provided to store spare seedlings at the location.
  • the hood 29 is attached to the upper front part of the main frame component 11 of the body frame 5 and includes a front cover member 31 and a rear cover member 32.
  • the high-low two-stage belt-type transmission 27 has a large-diameter high-speed output pulley 38 and a small-diameter low-speed output pulley 39 arranged on the output shaft 37 of the engine 25.
  • a small-diameter high-speed input pulley 41 and a large-diameter low-speed input pulley 42 are mounted side by side on the input shaft 40 of the mission case 26, and the high-speed output pulley 38 and the high-speed input While suspending the high-speed side transmission belt 43 between it and 41, A low-speed transmission belt 44 is suspended between the low-speed output pulley 39 and the low-speed input pulley 42, and the high-speed clutch pulley 45 can be connected to and detached from the middle of the high-speed transmission belt 43.
  • a low-speed clutch pulley 46 is disposed in the middle of the low-speed transmission belt 44 so as to be able to approach and separate.
  • the traveling section 6 has a pair of left and right front axle cases 74 and 75 interlockedly connected to the mission case 26, and the front wheels 76 are interlockedly connected to the respective front axle casings 74 and 75.
  • a rear axle case 77 is linked to the transmission case 26, and a pair of left and right rear wheels 78, 78 are linked to the rear axle case 77.
  • the power of the engine 25 is transmitted from the engine 25 to the transmission case 26, transmitted from the transmission case 26 to the front axle cases 74, 75, and transmitted from the front axle case 75 to the front wheels 76, 76.
  • a power transmission path 79 is formed to transmit the power to the rear axle case 77 from the transmission case 26 to the rear axle case 77 and to transmit the power to the rear wheels 78 and 78 from the rear axle case 77.
  • the front axle cases 74 and 75 are horizontal axle cases that are connected to the left and right side walls 80 and 81 of the mixing case 26 and extend in the left and right width direction.
  • the body 82, 83 and the vertical axle case components 84, 85 which are vertically installed at the tips of the horizontal axle case components 82, 83, form a substantially L-shape.
  • Front axles 86, 86 are arranged at the lower ends of the axle casing components 84, 85 so as to be rotatable toward the left and right sides of the fuselage, and the front wheels 76 are attached to the front end of each front axle 86. I have.
  • the vertical axle casing components 84 and 85 are rotatably connected to the distal ends of the horizontal axle case components 82 and 83, and can be steered to a steering wheel 87 to be described later via a steering mechanism 88. It is linked and linked.
  • the steering mechanism 88 is provided at the rear end of the mission case 26 as shown in FIGS.
  • the steering shaft 24 with the steering wheel 87 attached to the tip of the steering case 24 is attached to the upper part of the steering case 24 so that the steering shaft 89 extends vertically and is rotatable.
  • An upper end of a steering yoke shaft 90 rotatably attached to the base end of the steering case 24 at the lower end of the rear end of the steering case 24 so as to extend in the up and down direction is interlockingly connected to the steering yoke shaft 90.
  • a triangular flat steering yoke 91 is mounted horizontally, and the base ends of a pair of left and right evening rods 92, 93 are linked to the left and right rear ends of the steering yoke 91 in a freely rotatable manner.
  • the bases of the knuckle arms 94 and 95 are connected to the tips of the rods 92 and 93 at the same time so that they can rotate to the left and right.
  • Axle case components 84 and 85 are installed in the middle.
  • the steering mechanism 88 has a base end of a substantially rectangular shaped steer 160 in a plan view attached to a middle part of the steering yoke shaft 90, and a lock of a hydraulic cylinder 161 for power steering is mounted at a distal end of the stay 160.
  • the sub-step 163 is attached to the main pipe 9 of the main frame structure 11 downward to the left side of the fuselage, and the sub-step 163 is connected to the sub-pipe 14 of the lower frame structure 17.
  • a cylinder support 164 is mounted therebetween, and the base end of the hydraulic cylinder 161 is pivotally mounted on the upper portion of the cylinder support 164.
  • the hydraulic cylinder 161 for power steering extends in the direction of the right and left sides of the fuselage while penetrating between the main pipe 9 of the main frame structure 11 and the sub pipe 14 of the lower frame structure 17. In addition, it is disposed just above the cylinder support 164.
  • the hydraulic cylinder 161 is disposed so as to extend in the width direction of the aircraft, the longitudinal length of the aircraft can be shortened as much as possible.
  • the cylinder support 164 prevents the obstacles on the road from colliding with the hydraulic cylinder 161, and the hydraulic cylinder 161 can be prevented from being damaged.
  • the hydraulic cylinder for power steering 161 is disposed immediately behind the mission case 26, Since the mission case 26 is located in front of the cylinder 161, the hydraulic cylinder 161 does not collide with the ridge when the ridge is crossed, and the hydraulic cylinder 161 can be prevented from being damaged.
  • the hydraulic cylinder 161 is disposed above the lowermost end of the transmission case 26, so that the ridge can be used when an obstacle on the road surface or a ridge is crossed. Thus, the hydraulic cylinder 161 can be prevented from being damaged without directly colliding with the hydraulic cylinder 161.
  • the steering mechanism 88 attaches a substantially L-shaped support 165 to the upper left portion of the steering case 24, and operates the hydraulic cylinder 1 161 for power steering on the support 165.
  • 166 is mounted via an adapter 167.
  • a substantially L-shaped cover integral 158 is attached to the upper left portion of the steering case 24.
  • the valve 166 is attached to the steering case 24 via the adapter 167, the steering case 24 can be shared irrespective of whether or not it is a power steering type, and parts management is easy. In addition, the assemblability and disassembly of the steering case 24 can be improved.
  • the steering mechanism 88 steers the steering wheel 87 right and left
  • the left and right vertical axle case components 84 and 85 and the front wheels 76 and 76 change their left and right postures accordingly.
  • the rear axle case 77 is supported at the intersection of the rear end of the lower frame member 17 and the lower end of the rear frame member 21, as shown in FIGS.
  • a drive shaft 99 extending in the front-rear direction at the front of the case 77 is interlockingly connected to the mission case 26, while a rear axle 100 extends in the left and right sides of the rear axle case 77 in the left-right width direction. It is linked to the rear wheels 78, 78 by an interlock.
  • the driving operation unit 8 has a steering wheel 87 rotatably disposed on the top of the bonnet 29, and a seat 101 disposed at a position immediately behind the steering wheel 87.
  • a gear shift for shifting gears of the traveling machine 2 is located on the left side of the seat 101.
  • the lever 102 is provided so as to be swingable in the front-rear direction, while the right and left positions of the seat 101 are used for raising and lowering the planting machine 3 and shifting the belt-type transmission mechanism 27 having two levels of height.
  • the gearshift lever 103 is arranged so as to be swingable in the front-rear direction.
  • 105 is a casing.
  • the driving operation unit 8 is provided at the left side of the bonnet 29 so that an interlocking operation lever 107 as an interlocking operation member provided on a clutch-brake interlocking mechanism 106 described later can be swingably operated forward and backward.
  • the clutch pedal 108 is operable by depressing the clutch pedal 108 at the left position of the interlocking operation lever 107, and the pair of left and right foot brake pedals 168, 169 is depressed at the right position of the hood 29.
  • the brake pedals 168 and 169 are rotatably supported by the connecting pipe 16 of the lower frame structure 17.
  • the interlocking operation lever 107 is provided in the clutch-brake interlock mechanism 106.
  • the clutch-brake interlock mechanism 106 transmits power from the prime mover unit 7 to the traveling unit 6.
  • the clutch mechanism 109 provided in the middle of the path 79 is linked to the auxiliary brake mechanism 48 linked to the clutch mechanism 109.
  • the clutch mechanism 109 is attached to the connecting rod 12 on the left side of the body frame 5 so as to be rotatable back and forth with the axis line extending in the left-right width direction.
  • the two operating plates 112, 113 extended in the left and right directions are mounted at an interval on the left and right, and the base end of the interlocking operation lever 107 is mounted on the right operating plate 113 so that it can swing freely in the left and right width direction, while the left side
  • a biasing spring 115 is interposed between the operating plate 112 and the connecting rod 12 to bias the interlocking operation lever 107 forward.
  • 114 is an urging spring
  • 124 is a connection pin
  • 125 is a pressing plate.
  • the clutch mechanism 109 has a clutch pedal shaft 116 attached to the main pipe 9 on the left side of the body frame 5 so as to be able to rotate back and forth with its axis oriented in the left-right direction, and a clutch pedal 108 is provided at the left end of the clutch pedal shaft 116.
  • a pair of left and right interlocking plates 117 and 118 extending in the form of a front-rear and low-back slope are attached to the right end of the clutch pedal shaft 116, and the lower ends of the interlocking plates 117 and 118
  • the base end of the clutch door 119 extending in the front-rear direction passing between the left and right operating plates 112, 113 is rotatably taken.
  • a horizontally long ring-shaped engagement body 120 is formed at the tip of the clutch rod 119, and the low-speed side engagement bin protruding rightward at the upper right side of the low-speed side wire arm 55 is formed on the engagement body 120.
  • the high speed side engagement bin 122 protruding leftward at the upper left side of the high speed side clutch arm 63 is engaged with the high speed side clutch arm 63.
  • reference numeral 139 denotes a biasing spring interposed between the clutch pedal 108 and the main pipe 9, and the biasing spring 139 moves the clutch pedal 108 clockwise about the clutch pedal shaft 116 in FIG. It is energizing.
  • the clutch mechanism 109 has a receiver 123 attached to the rear part of the clutch rod # 9 and immediately behind the left and right operating plates 112, 113.
  • the auxiliary brake mechanism 48 has a brake support bracket 51 attached to the middle part of the sub pipe 14 of the lower frame structure 17 and a base member 52 attached to the brake support bracket 51.
  • a boss 53 is attached to the base member 52, and a brake support 54 is inserted through the boss 53 so as to be able to advance and retreat, and an arc-shaped brake pad 55 is attached to the tip of the brake support 54, while a drive shaft 99 is mounted.
  • a disk-shaped brake bulge 49 with a brake groove 50 formed on the outer peripheral surface is attached, so that the brake pad 55 can freely contact and separate from the brake groove 50 of the brake pulley 49.
  • the hollow portions of the brake support 54 and the boss 53 have a cross-sectional shape having flat portions on the left and right and arcuate portions on the top and bottom, and the gap between the flat portions of the hollow portion of the boss 53 is also provided. Is wider than the gap between the flat portions of the brake support 54, so that the brake support 54 can be rotated slightly around the axis so that the position of the brake support 54 can be adjusted. I have to.
  • the auxiliary brake mechanism 48 is connected to a base end of a substantially L-shaped operation arm 56 rotatably mounted on a brake support bracket 51 at the distal end of the brake support 54 in an interlocking manner.
  • the rear end of a link ball 57 extended in the front-rear direction to the front end of the link ball 57 is rotatably connected to the rear end of the link ball 57, and the brake connection attached to the right end of the interlocking shaft 111 is connected to the front end of the link ball 57.
  • the body 58 is rotatably linked to the body.
  • reference numeral 59 denotes a biasing spring, which biases the brake pad 55 in a direction away from the brake groove 50.
  • the auxiliary brake mechanism 48 supports the brake operating body 60 including the brake support 54 and the brake pad 55 at the position on the left side of the base member 52, and fixes the base member 52 to the body frame 5. It is fixed using 61.
  • the fixing means 61 is formed by piercing left and right elongated holes 62, 62 at right and left positions of the base member 52 at intervals in the vertical direction. Blur —Attached to the key support bracket 51, the fixing position of the base member 52 can be adjusted in the left-right direction by long holes 62, 62 provided in the base member 52.
  • the drive shaft 99 includes a transmission case side shaft 147 interlockingly connected to the rear of the transmission case 26, an axle case side shaft 148 interlockingly connected to the front of the rear axle case 77, and
  • the connecting shaft 149 is interlockingly connected between the shafts 147 and 148, and is configured to be able to be divided into three parts.
  • the brake pulley 49 of the auxiliary brake mechanism 48 is attached near the connection with the point 149.
  • 150 and 151 are bevel gears.
  • the auxiliary brake mechanism 48 is provided on the drive shaft 99 that is exposed to the outside without disposing the auxiliary brake mechanism 48 inside the transmission case 26 and the rear axle case 77.
  • the auxiliary brake mechanism 48 can be inspected and repaired without removing or disassembling the yoke case 26 and the rear axle case 77, and the maintenance work of the auxiliary brake mechanism 48 can be facilitated.
  • the auxiliary brake can be used without removing the drive shaft 99 from the mission case 26 and the rear axle case 77. Inspection and repair of the mechanism 48 can be performed, and maintenance work of the auxiliary brake mechanism 48 can be further facilitated.
  • the transmission case 26 is disposed at a position higher than the rear axle case 77, the drive shaft 99 is inclined forward and rearward, and the auxiliary brake mechanism 48 is provided on the upper side thereof.
  • the auxiliary brake mechanism 48 can be provided at a position as high as possible, preventing mud and soil from adhering to the auxiliary brake mechanism 48, and the braking force of the auxiliary brake mechanism 48 Can be favorably maintained.
  • the auxiliary brake mechanism 48 is provided with a mud removing mechanism 64 for removing mud and soil adhering to the brake groove 50 of the brake pulley 49.
  • the mud removing mechanism 64 has a support bin 65 attached to the left edge of the base
  • the base end of the support arm 66 extended downward to the pin 65 is rotatably attached to the left and right width direction, and a disc-shaped distal end of the support arm 66 is made of an elastic material such as resin or rubber.
  • a scraper 67 is mounted rotatably, and the scraper 67 is pressed and urged toward the brake groove 50 of the brake pulley 49 by a biasing spring 68 interposed between the support arm 66 and the brake support bracket 51.
  • 69 is a retaining pin
  • 70 is a spindle.
  • the mud removing mechanism 64 for removing the mud adhering to the outer peripheral surface of the brake pulley 49 attaches the mud to the outer peripheral surface of the brake pulley 49. Mud and dirt can be removed, the frictional force between the brake buckle 49 and the brake pad 135 can be maintained well, and the braking force of the auxiliary brake mechanism 48 can be maintained well. it can.
  • the scraper 67 is rotatably provided on the support arm 66 to constitute the mud removing mechanism 64, the frictional resistance between the scraper 67 and the brake pulley 49 can be reduced, and the scraper 67 can be connected to the brake pulley. The power loss caused by contact with 49 can be reduced.
  • the scraper 67 made of an elastic material such as resin or rubber is pressed against the outer peripheral surface of the brake pulley 49, the scraper 67 can be brought into close contact with the outer peripheral surface of the brake pulley 49, Mud and soil adhering to the outer peripheral surface of the first 49 can be reliably removed.
  • the auxiliary brake mechanism 48 is configured as described above.
  • a brake pulley 49 is provided on a drive shaft 99 for transmitting the power of the prime mover unit 7 to the traveling unit 6.
  • the brake operating body 60 is arranged on the outer peripheral surface of the pulley 49 so as to be able to freely contact and separate, while the outer periphery of the brake pulley 49 is mounted on the outer peripheral surface of the brake pulley 49. Since the scraper 67 for removing mud adhering to the surface is provided, and the brake operating body 60 and the scraper 67 are supported by the same base member 52, the brake operating body 60 and the scraper 67 are made compact.
  • the unit can be integrated into a unit, and simply by attaching the base member 52 to the body frame 5, the brake operating body 60 and the scraper 67 can be mounted on the body frame 5. The workability of assembling the machine 1 can be improved.
  • the brake operating body 60 and the scraper 67 are disposed at the left side position of the base member 52, the brake is performed with the right side position of the base member 52 fixed by a jig or the like. Since the key operating body 60 and the scraper 67 can be assembled, the workability of assembling the unitized brake operating body 60 and the scraper 67 can be improved.
  • the fixing means 61 for fixing the base member 52 to the body frame 5 is provided at the right side position of the base member 52, the unitized brake is provided on the body frame 5.
  • the worker can visually observe the fixing means 61 without being blocked by the brake operating body 60 and the scraper 67. Can be improved.
  • the fixing means 61 is configured so that the fixing position of the base member 52 can be adjusted, the position of the brake operating body 60 and the position of the brake pulley 49 can be easily adjusted. In addition, the workability and maintainability of the rice transplanter 1 can be improved.
  • the auxiliary brake mechanism 48 interlocks the link ball 57 and the operating arm 56 to move the brake operating body 60 toward the brake pulley 49.
  • Advances, brake pad 55 brakes Pressing the brake groove 50 of the lee 49, thereby stopping the rotation of the drive shaft 99 and stopping the aircraft.
  • the moving range of the brake operating body 60 can be reduced, and the auxiliary brake mechanism 48 can be made more compact. The wear of the brake pad 55 is prevented.
  • the interlocking operation lever 107 is used to set the clutch mechanism 109 to the connected state and the auxiliary brake mechanism 48 to the released state, the vehicle running posture (140), the clutch mechanism 109 to the disconnected state, and the auxiliary brake mechanism
  • the attitude can be changed to the body stop attitude (141) that puts 48 into operation (see Fig. 1).
  • the interlocking operation lever 107 passes through an L-shaped guide hole 143 formed in a guide plate 142 attached to the left main pipe 9.
  • the attitude is changed between the aircraft running attitude (140) and the aircraft stopping attitude (141) along the guide hole 143.
  • reference numeral 144 denotes a bracket.
  • the interlocking operation lever 107 when the attitude of the interlocking operation lever 107 is changed from the airframe running attitude (140) to the airframe stop attitude (141), the interlocking operation lever 107 is turned rightward after rotating the interlocking operation lever 107 rightward. By swinging, the interlocking operation lever 107 is held upright (141) in a state of standing upright (141). In addition, a locking projection 145 of the guide hole 143 locks a middle portion of the interlocking operation lever 107 so that the interlocking operation lever 107 does not swing leftward.
  • the interlocking operation lever 107 when the attitude of the interlocking operation lever 107 is changed from the aircraft stopping attitude (141) to the airframe traveling attitude (140), the interlocking operation lever 107 is once turned rearward and then turned leftward. By performing a pivoting operation and then rotating forward, the interlocking operation lever 107 is tilted upward and to the left to maintain the aircraft in a running posture (140).
  • the auxiliary brake mechanism 48 is provided on the power transmission path 79 for transmitting the power of the engine 25 from the engine 25 to the rear wheels 78, 78, on the downstream side of the mission case 26, and on the upstream side of the rear axle case 77. Provided.
  • an auxiliary brake mechanism 48 was provided between the engine 25 and the transmission case 26, that is, an auxiliary brake mechanism 48 was provided on the power transmission path 79 on the upstream side of the transmission case 26.
  • the transmission mechanism in the case 26 is in the neutral state, the rotation of the front and rear wheels 76, 76, 78, 78 cannot be stopped even if the auxiliary brake mechanism 48 is operating, and the vehicle cannot be driven on a slope or the like.
  • the auxiliary brake mechanism 48 was provided on the power transmission path 79 on the downstream side of the mission case 26.
  • auxiliary brake mechanism 48 since the auxiliary brake mechanism 48 is provided on the power transmission path 79 on the upstream side of the rear axle case 77, only one auxiliary brake mechanism 48 is provided. Therefore, the left and right wheels 78, 78 can be stopped, and the auxiliary brake mechanism 48 can be operated with a lower braking torque than when the auxiliary brake mechanism 48 is provided on each of the left and right rear axles 100. Therefore, the configuration of the auxiliary brake mechanism 48 can be simplified, the operating force of the interlocking operation lever 107 can be reduced, and the operability can be improved.
  • the auxiliary brake mechanism 48 is disposed immediately behind the mission case 26, so that the mission case 26 is located in front of the auxiliary brake mechanism 48.
  • the auxiliary brake mechanism 48 does not collide with the ridge when the ridge is crossed, and the auxiliary brake mechanism 48 can be prevented from being damaged.
  • the auxiliary brake mechanism 48 is disposed above the lowermost end of the mixing case 26, so that the ridges are raised when an obstacle on a road surface or a ridge is crossed. There is no direct collision with the auxiliary brake mechanism 48, and the damage of the auxiliary brake mechanism 48 can be prevented.
  • the auxiliary brake mechanism 48 is disposed immediately above the steering yoke 91, so that the lower side of the auxiliary brake mechanism 48 is the steering yoke 91.
  • the auxiliary brake mechanism 48 can be prevented from adhering mud and soil to the auxiliary brake mechanism 48, whereby the braking force of the auxiliary brake mechanism can be well maintained.
  • the mud removing mechanism 64 is disposed immediately behind the mission case 26, so that the front side of the mud removing mechanism 64 is also covered by the transmission case 26. Thus, it is possible to prevent mud and soil from adhering to the mud removing mechanism 64.
  • the mud removal mechanism 64 is located above the lowermost end of the mission case 26. Collide directly The mud removal mechanism 64 can be prevented from being damaged.
  • the steering yoke 91 is disposed immediately below the mud removing mechanism 64, the lower side of the mud removing mechanism 64 is covered with the steering yoke 91, and the mud removing mechanism 64 is also provided with the mud. It is possible to prevent the soil and soil from adhering, prevent the mud removing mechanism 64 from being damaged, and maintain the braking force of the auxiliary brake mechanism 48 satisfactorily.
  • the mud removal is provided by disposing the steering yoke 91 immediately behind the mission case 26 and the mud removing mechanism 64 immediately above the steering yoke 91.
  • the front side of the mechanism 64 is covered with the mission case 26, and the lower side of the mud removing mechanism 64 is covered with the steering yoke 91, so that obstacles on the road can be prevented from colliding with the mud removing mechanism 64.
  • the mud removing mechanism 64 can be prevented from being damaged, and at the same time, mud and soil can be prevented from adhering to the mud removing mechanism 64, so that the braking force of the auxiliary brake mechanism 48 can be maintained well.
  • a drive shaft 99 for transmitting the power of the prime mover unit 7 to the traveling unit 6 is disposed in a substantially central portion of the fuselage so as to extend in the front-rear direction.
  • the auxiliary brake mechanism 48 is located on the left side of the drive shaft, so that the drive shaft 99 does not interfere with the assembly and disassembly of the auxiliary brake mechanism 48, improving the assemblability and maintainability of the auxiliary brake mechanism 48. It can be done.
  • the foot-type brake pedals 168 and 169 are disposed at the right side of the drive shaft, so that the space below the fuselage can be effectively used and the fuselage can be made compact. be able to.
  • the drive shaft 99 does not hinder the assembling or disassembly of the auxiliary brake mechanism 48 and the foot-type brake pedals 168, 169, and the assembly and maintenance of the auxiliary brake mechanism 48 and the brake pedals 168, 169 are easy. Can be improved.
  • auxiliary brake mechanism 170 is provided in the middle part of the sub pipe 14 of the lower frame structure 17. Attach the brake support bracket 171.A substantially L-shaped operating arm 172 is rotatably mounted on the brake support bracket 171. The brake pulley 49 is mounted between the tip of the operating arm 172 and the sub pipe 14. A brake belt 173 wound around the brake groove 50 is attached, and a rear end of the link ball 57 is attached to a base end of the operation arm 172. In the figure, 174 and 175 are tension springs.
  • the present invention is implemented in the form as described above, and has the following effects.
  • the engine is connected to the transmission case via a clutch mechanism
  • the transmission case is connected to the axle case
  • the left and right wheels are connected to the transmission case.
  • a power transmission path for transmitting the power from the engine to the wheels is formed, and the auxiliary brake mechanism is provided downstream of the mission case in the power transmission path, so even if the mission case is in a neutral state, The rotation of the front and rear wheels can be stopped by the brake mechanism, and the aircraft can be reliably stopped even on an inclined surface such as a slope.
  • the brake mechanism since the brake mechanism is disposed immediately behind the transmission case and above the lowermost end of the transmission case, the auxiliary brake mechanism is protected by the transmission case. Therefore, obstacles such as ridges do not collide with the auxiliary brake mechanism when the ridge is crossed over, and damage to the auxiliary brake mechanism can be prevented.
  • a steering yoke is connected to the steering wheel, a pair of left and right wheels are connected to the steering yoke, and the left and right front wheels can be steered by the steering wheel.
  • the steering yoke is placed horizontally at the position, the lower side of the auxiliary brake mechanism is covered with the steering yoke, which prevents dirt and soil from adhering to the auxiliary brake mechanism. Therefore, the braking force of the auxiliary brake mechanism can be favorably maintained.
  • the transmission case is linked to the engine via the clutch mechanism
  • the rear axle case is linked to the transmission case via the drive shaft
  • the auxiliary brake mechanism is connected to the drive shaft. Since it is provided, inspection and repair of the auxiliary brake mechanism can be easily performed, and maintenance of the auxiliary brake mechanism can be improved.
  • a brake pulley is disposed on a drive shaft for transmitting the power of a prime mover to a traveling unit, and a brake pad is disposed on the brake pulley so as to come into contact with and separate from the drive shaft. Since the brake pulley is provided with a mud removing mechanism for removing mud attached to the outer peripheral surface of the brake pulley 1, mud and soil adhering to the outer peripheral surface of the brake pulley 1 by the mud removing mechanism are provided. It can be removed, and the braking force of the auxiliary brake mechanism can be maintained well.
  • the mud removing mechanism is provided at a position immediately behind the mission case and above the lowermost end of the mission case, the mud removing mechanism is protected by the mission case. Therefore, obstacles such as ridges do not collide with the mud removing mechanism when the ridge is crossed, and the mud removing mechanism can be prevented from being damaged.
  • a brake pulley is provided on a drive shaft for transmitting the power of the prime mover to the traveling unit, and a brake operating body is provided on an outer peripheral surface of the brake pulley.
  • the scraper is provided on the outer surface of the brake pulley to remove mud adhering to the outer surface of the brake pulley, and the brake operating body and the scraper are the same base member.
  • the position of the brake pulley and the scraper can be adjusted only by adjusting the position of the brake operating body and the brake pulley. As a result, the workability of assembling the rice transplanter can be improved.
  • the brake operating body and the scraper are arranged at one of the left and right side positions of the base member, while the base member is attached to the body frame at the other side position of the base member. Since the fixing means for fixing are provided, when the unit and the disassembly of the unitized brake actuator and the scraper are assembled and disassembled, the worker is obstructed by the brake operator and the scraper. The rice transplanter can be visually inspected without any difficulty, and the workability of the rice transplanter and the ease of maintenance can be improved. In addition, since the fixing means is configured to adjust the fixing position of the base member, it is possible to easily align the brake operating body and the brake boogie. Workability and maintainability can be improved.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transplanting Machines (AREA)
  • Braking Arrangements (AREA)
  • Arrangement Of Transmissions (AREA)

Abstract

L'invention porte sur une machine à planter le riz qui comprend un mécanisme de freinage auxiliaire destiné à stopper le corps de la machine et associé de manière fonctionnelle à un mécanisme d'embrayage placé dans une voie de transmission de puissance s'étendant d'un appareil moteur à une section tournante et dans laquelle un boîtier de transmission est raccordé de manière fonctionnelle au moteur par l'intermédiaire du mécanisme d'embrayage, une boîte d'essieu est raccordée de manière fonctionnelle au boîtier de transmission et une paire de roues est raccordée de manière fonctionnelle à la boîte d'essieu, ce qui forme une voie de transmission de puissance transmettant la puissance du moteur, du moteur aux roues, le mécanisme de freinage auxiliaire étant placé dans la voie de transmission de puissance en aval du boîtier de transmission. Ainsi, même si le boîtier de transmission reste neutre, la rotation des roues avant et arrière peut être stoppée par le mécanisme de freinage auxiliaire, ce qui permet de maintenir de manière fiable le corps de la machine à l'arrêt, même sur une surface inclinée telle qu'une pente.
PCT/JP1999/005739 1999-10-18 1999-10-18 Machine a planter le riz WO2001028799A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CNB998145319A CN1275793C (zh) 1999-10-18 1999-10-18 插秧机
KR1020017007558A KR100611812B1 (ko) 1999-10-18 1999-10-18 모내기 작업기
PCT/JP1999/005739 WO2001028799A1 (fr) 1999-10-18 1999-10-18 Machine a planter le riz

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1999/005739 WO2001028799A1 (fr) 1999-10-18 1999-10-18 Machine a planter le riz

Publications (1)

Publication Number Publication Date
WO2001028799A1 true WO2001028799A1 (fr) 2001-04-26

Family

ID=14237023

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/005739 WO2001028799A1 (fr) 1999-10-18 1999-10-18 Machine a planter le riz

Country Status (3)

Country Link
KR (1) KR100611812B1 (fr)
CN (1) CN1275793C (fr)
WO (1) WO2001028799A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5931698B2 (ja) * 2012-11-01 2016-06-08 ヤンマー株式会社 田植機

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57187259U (fr) * 1981-05-23 1982-11-27
JPH0321521A (ja) * 1989-06-17 1991-01-30 Iseki & Co Ltd 農作業機

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57187259U (fr) * 1981-05-23 1982-11-27
JPH0321521A (ja) * 1989-06-17 1991-01-30 Iseki & Co Ltd 農作業機

Also Published As

Publication number Publication date
CN1330594A (zh) 2002-01-09
KR100611812B1 (ko) 2006-08-11
KR20010108023A (ko) 2001-12-07
CN1275793C (zh) 2006-09-20

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