WO2023094956A1 - 작업 차량 및 작업 차량용 구동추출장치 - Google Patents
작업 차량 및 작업 차량용 구동추출장치 Download PDFInfo
- Publication number
- WO2023094956A1 WO2023094956A1 PCT/IB2022/061173 IB2022061173W WO2023094956A1 WO 2023094956 A1 WO2023094956 A1 WO 2023094956A1 IB 2022061173 W IB2022061173 W IB 2022061173W WO 2023094956 A1 WO2023094956 A1 WO 2023094956A1
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- WO
- WIPO (PCT)
- Prior art keywords
- extraction
- drive
- brake
- plate
- wheel
- Prior art date
Links
- 238000000605 extraction Methods 0.000 title claims abstract description 157
- 230000005540 biological transmission Effects 0.000 claims abstract description 79
- 238000000034 method Methods 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 239000000284 extract Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/344—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear
-
- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
-
- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
-
- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
-
- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
- B60K17/24—Arrangements of mountings for shafting
-
- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/062—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels acting on transmission parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/741—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on an ultimate actuator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
- F16D25/061—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having interengaging clutch members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
- F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
- F16D55/36—Brakes with a plurality of rotating discs all lying side by side
- F16D55/38—Brakes with a plurality of rotating discs all lying side by side mechanically actuated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/345—Parking lock mechanisms or brakes in the transmission using friction brakes, e.g. a band brakes
-
- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/28—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of power take-off
-
- 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
- B60Y2200/221—Tractors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/14—Mechanical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
- F16D2125/36—Helical cams, Ball-rotating ramps
- F16D2125/38—Helical cams, Ball-rotating ramps with plural cam or ball-ramp mechanisms arranged concentrically with the brake rotor axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
- F16H37/043—Combinations of toothed gearings only change gear transmissions in group arrangement without gears having orbital motion
- F16H2037/044—Combinations of toothed gearings only change gear transmissions in group arrangement without gears having orbital motion comprising a separate gearing unit for shifting between forward or reverse
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
- F16H37/043—Combinations of toothed gearings only change gear transmissions in group arrangement without gears having orbital motion
- F16H2037/045—Combinations of toothed gearings only change gear transmissions in group arrangement without gears having orbital motion comprising a separate gearing unit for shifting between high and low ratio range
Definitions
- the present invention relates to a work vehicle including a driving weight device and a drive extraction device enabling switching between four-wheel drive and two-wheel drive in a work vehicle.
- the work vehicle may refer to a vehicle capable of additionally performing work for the convenience of human life in addition to a vehicle for movement.
- a work vehicle can function as a transportation device that moves a worker to a specific location using a driving source such as an engine, and can move with a worker at a specific location or use power from a driving source other than driving while maintaining a stationary state. can be used for purpose.
- a general work vehicle there may be an agricultural work vehicle such as a combine or a tractor, and in addition, there may be a work vehicle that performs other tasks at a construction site or a factory. Referring to Japanese Patent Registration No. 3940195, a work vehicle including a PTO is disclosed.
- the work vehicle includes an engine, a transmission, and a PTO device, and some of the power from the engine is transmitted to driving wheels and the like and used for driving, and the other portion is transmitted to the PTO device and the like and used for purposes other than driving.
- the transmission includes a front housing, a mission housing, and a rear housing, and inside, the driving power transmission part that transmits power from the engine to the driving wheels, etc. It includes a PTO power transmission unit for operation.
- As a driving power transmission part it includes a front and rear transmission part, a main transmission part, and a sub transmission part.
- the front transmission part is located in the front housing, and the main transmission part and auxiliary transmission part are located in the mission housing. power can be selectively transmitted.
- a pulley for a parking brake is installed in the mission housing where the auxiliary transmission is located, so that it can function as an additional brake.
- the present invention provides a work vehicle and a drive extraction device in which a parking brake is positioned on a drive extraction device so that the parking brake can be closely interlocked with the drive extraction device.
- the present invention is a work vehicle in which the brake and the extraction clutch interlock with each other in a drive extraction device that can make the size of the transmission more compact by converting the location of the parking brake from the transmission to the drive extraction device, and is relatively free from size restrictions, and A driven extraction device is provided.
- the present invention provides a work vehicle and a drive extraction device capable of performing maintenance through the drive extraction device without the need to separate the transmission even if the parking brake is located on the drive extraction device, even if the parking brake fails.
- power is transmitted from a driving source, a first driving wheel, a second driving wheel, and a driving source to the first driving wheel.
- a work vehicle including a transmission and a first brake for stopping a first drive wheel is attached to the transmission to extract power from the transmission and to a second drive wheel.
- An extraction housing provided externally of the drive extraction device transmission, including a drive extraction device for selectively transmitting power, an extraction clutch for selectively transmitting power from the transmission to an output shaft connected to the second drive wheel, and stopping the output shaft.
- the second brake can be used as a parking brake, etc., and the size of the transmission can be reduced and the internal structure can be simplified by attaching the second brake to the drive extraction device rather than the transmission, rather, the second brake is driven outside the transmission. It can be located in the extraction device to facilitate maintenance, and the interconnected operation between the drive extraction device and the second brake can be easily designed.
- the extraction clutch, the output shaft and the second brake may be accommodated or engaged in the extraction housing.
- the extraction clutch can be mainly used for switching to a 2-wheel mode or a 4-wheel mode, and a dog clutch or the like can be used.
- the drive extraction gear may be exposed to the outer surface of the transmission, and the drive extraction device may be connected to the drive extraction gear through a process of mounting the extraction housing to the transmission.
- the drive extraction device may further include a hollow extraction gear rotating around an output shaft connected to the second drive wheel. Additional hollow extraction The gear may transmit rotation to the output shaft through an extraction clutch.
- the second brake further includes a first friction plate constrained to the outer surface of the extraction gear, a second friction plate constrained to the inner surface of the extraction housing, and a second brake actuator controlling engagement between the first friction plate and the second friction plate. can do.
- the second friction plate is constrained by spline coupling with the inner surface of the extraction housing, and the outer surface of the second brake actuator may also be constrained by the same spline coupling.
- the second brake actuator may include a fixed plate fixed to the inner surface of the extraction housing by spline coupling, a rotating plate facing the fixed plate, and at least three balls interposed between the rotating plate and the fixed plate, wherein the fixed plate and the second friction plate Since the outer diameter of the spline is the same, the second friction plate, the first friction plate, the rotating plate of the second brake actuator, the ball, and the fixing plate can be sequentially assembled on one side of the extraction housing.
- the rotating plate may adjust a distance between the first friction plate and the second friction plate while the rotating plate rotates with respect to the fixed plate.
- a drive extraction device includes a drive source, a first drive wheel, a second drive wheel, a transmission for transmitting power from the drive source to the first drive wheel, and It can be applied to a work vehicle that includes a first brake for stopping the first drive wheel, and as a component, an extraction housing provided to the outside of the transmission, from the transmission to an output shaft connected to the second drive wheel. It may include an extraction clutch for selectively transmitting power, and a second brake for stopping the output shaft, and the drive extraction device is attached to the transmission to extract power from the transmission and selectively transmit power to the second drive wheel.
- the extraction clutch, output shaft, and second brake may be accommodated or engaged within the extraction housing, the extraction clutch may be used primarily for switching to two-wheel mode or four-wheel mode, and the second brake may be used to switch the second drive.
- the immediately adjacent extraction clutch may be provided to switch to a forcibly engaged mode.
- the drive extraction device may further include a hollow extraction gear rotating around an output shaft connected to the second drive wheel. With the extraction clutch connected, the power transmitted to the hollow extraction gear is transmitted to the output shaft through the extraction clutch to maintain the 4-wheel mode, and with the extraction clutch disconnected, the power from the hollow extraction gear is not transmitted to the output shaft. It can maintain the two-wheeled mode.
- the second brake may stop the hollow extraction gear or output shaft relative to the extraction housing, and according to one example, the second brake comprises a first friction plate constrained to the outer surface of the extraction gear and a second friction plate constrained to the inner surface of the extraction housing. , and a second brake actuator that controls engagement between the first friction plate and the second friction plate.
- the second brake is mounted on the drive extraction device, not the transmission, so that the size of the transmission can be reduced and the internal structure of the transmission can be simplified. It can be located in the extraction device to facilitate maintenance, and the interconnected operation between the drive extraction device and the second brake can be easily designed.
- the work vehicle and drive extraction device of the present invention can be maintained through separation of the drive extraction device without the need to disassemble the transmission even if the failure is caused by the second brake.
- FIG. 1 is a diagram for explaining a work vehicle and a drive extraction device according to an embodiment of the present invention.
- 2 is a diagram for explaining a power transmission structure of a work vehicle according to an embodiment of the present invention.
- 3 and 4 are views for explaining a drive extraction device of a work vehicle according to an embodiment of the present invention.
- 5 and 6 are views for explaining a second brake of a work vehicle according to an embodiment of the present invention.
- FIG. 1 is a view for explaining a work vehicle and a drive extraction device according to an embodiment of the present invention
- FIG. 2 is a view for explaining a power transmission structure of a work vehicle according to an embodiment of the present invention
- the work vehicle 100 includes a driving source 110, a rear wheel or first driving wheel 120, a front wheel or second driving wheel 130, a user driving unit 200 ), a transmission 300, a drive extraction device 400, a hydraulic shift valve device 500, a hydraulic PTO valve device 600 and a PTO device 700.
- a driving source 110 such as an engine generates power, and the power from the driving source 110 is shifted or controlled through the transmission 300 so that it can be used for driving or for work other than driving.
- the transmission 300 may transmit all or part of the power transmitted from the driving source 110 to the first driving wheel 120 or the second driving wheel 130 for driving, and the power for work other than driving is It can be delivered to the PTA device 700.
- the power transmitted to the PTO device 700 can be transmitted from the driving source 110, which is an engine, without shifting, and the driving source 110 generates maximum or optimal torque at 540 rpm, lOOOrpm, or rotation proportional to the driving speed. You can rotate in the speed (GSP). Shifting within the PTO device 700 may be performed through a shift clutch 730 or the like.
- the user driving unit 200 includes a driver's seat 210, a steering wheel 220, a clutch pedal 230, A forward/reverse control unit 240, a main gear control unit 250, and a sub-shift control unit 260 may be included.
- the user can control the driving direction of the work vehicle 100 through the steering wheel 220 and the like, can control the rotational direction of the drive wheel through the forward and reverse control unit 240, and the main gear control unit 250 and A shift level or a shift range may be controlled through the shift control unit 260 .
- a clutch pedal 230 may be located on the left side under the steering wheel 220, a brake pedal may be provided on the right side, and a parking brake 280 may be provided under the driver's seat 210.
- the brake pedal may be connected to a valve of a hydraulically operated brake device, and may operate a first brake 140 to be described later according to the operation of the brake pedal.
- the user driver 200 may be provided in an exposed form, but may include a cabin 270 in some cases.
- the forward/reverse control unit 240, the main gear control unit 250, or the sub-shift control unit 260 may adjust the combination of shift gears through the hydraulic shift valve device 500, etc., and in this process, hydraulic, electric, or manual A manipulation method may be used. Power passing through the transmission 300 may be transmitted to the rear wheels, that is, the first driving wheels 120 through the first differential 360 .
- some power may be extracted to the front wheel output shaft 410 through the drive extractor 400 and transmitted to the front wheels, that is, the second driving wheel 130 .
- the second drive wheel 130 receives power like the first drive wheel 120 through the drive extractor 400
- the work vehicle 100 can drive in a 4-wheel mode
- the 4-wheel mode can drive on rough terrain or It can be usefully applied to moving the work vehicle 100 in a rice field or field.
- it is better to drive in 2-wheel mode rather than 4-wheel mode.
- the drive extraction device 400 may switch to a two-wheel mode in which the second drive wheel 130 passively rotates without power being transmitted to the front wheel output shaft 410.
- a first brake 140 may be mounted between the first differential 360 and the first driving wheel 120, and the first brake 140 controls rotation of the first driving wheel 120, which mainly contributes to driving. By restraining, the work vehicle 100 can be stopped.
- pedals for operating the first brake 140 may be provided to the user driver 200 and may be provided on one side or both sides of the driver's seat.
- Power from the engine may be connected to the first driving wheel 120, the second driving wheel 130 or the PTO device 700 through the transmission 300, and the inside of the transmission 300 includes a forward and reverse unit 310 , a main transmission unit 320, a sub transmission unit 350, a first differential 360, and the like may be provided. Referring to FIG.
- power from the driving source 110 may be applied for forward or backward movement through a forward/reverse part 310, and the main transmission part 320 is a high/low speed hydraulic clutch 330, from 1st to 4th gear. It may include a peripheral speed hydraulic clutch 340 capable of adjusting of.
- the auxiliary transmission unit 350 may additionally adjust the shift range to the rotation shifted by the main transmission unit 320, and control the A, B, C or Cr (creep) ranges using the shift clutch as shown.
- the high/low speed hydraulic clutch 330 and the main speed hydraulic clutch 340 are hydraulic clutches using friction plates, and may be controlled by the hydraulic shift valve device 500, and of the auxiliary transmission unit 350.
- the shift clutch can be actuated electrically or hydraulically.
- the transmission 300 according to this embodiment can be shifted to 24 steps or 32 steps by the main transmission part 320 and the auxiliary transmission part 350.
- the power from the engine does not pass through the forward/reverse part 310 or the main transmission part 320, etc., and the PTO It can also be transmitted to the device 700, and the power transmitted to the PTO device 700 can drive a tandem pump or the like through the hydraulic PTO valve device 600, and can also drive the PTO output shaft 710.
- the PTO device 700 it can be transmitted to the PTO output shaft 710 through the PTO clutch 720 and the PTO shift clutch 730.
- a gear for extracting power to the outside may be mounted on the shaft on which the shift clutch is mounted in the auxiliary transmission unit 350, and a drive extraction gear 370 is provided at the end thereof.
- the drive extraction gear 370 may be partially exposed from the housing of the transmission 300, and the drive extraction device 400 may be mounted in an area where the drive extraction gear 370 is exposed.
- the drive extractor 400 may transfer power transmitted from the transmission 300 to the second drive wheel 130 through the front wheel output shaft 410 .
- the drive extraction device 400 may include an extraction housing 420, an extraction clutch 430 and a second brake 440, and the extraction clutch 430 is transmitted from the transmission 300 to the front wheel output shaft 410. power can be controlled. At this time, the extraction clutch 430 may be provided using a dog clutch or the like.
- the second brake 440 may be used as a parking brake of a work vehicle, and the second brake 440 may be mounted in the extraction housing 420 rather than the transmission housing. Therefore, by omitting the second brake, the size of the transmission 300 can be reduced and the internal structure of the transmission 300 can be simplified. In addition, since the second brake 440 is located in the extraction housing 420, various brake structures that could not be applied to the transmission can be applied without burden on size, and the second brake 440 and other devices , for example, the interlocking function with the extraction clutch 430 can be improved.
- the driving main line device 400 corresponds to the driving main line gear 370 and includes a hollow extraction gear 450 rotating around the front wheel output shaft 410, and the hollow extraction gear 450 and the extraction
- a second brake 440 is provided between the housings 420.
- the second brake 440 includes a plurality of first friction plates 442 constrained to the outer surface of the hollow extraction gear 450, a plurality of second friction plates 444 constrained to the inner surface of the extraction housing 420, and the first and a second brake actuator 446 that controls the distance between the friction plate 442 and the second friction plate 444.
- the second brake actuator 446 is located in front of the first friction plate 442 and the second friction plate 444, and includes a fixed plate 447 fixed to the extraction housing 420 and a rotating plate 448 facing the fixed plate 447. ), and at least three balls 449 interposed between the rotating plate 448 and the fixing plate 447.
- the fixed plate 447 or the rotating plate 448 may include a slanted receiving groove or a droplet-shaped receiving groove 448-1 capable of accommodating the ball 449, and the rotating plate 448 rotates the ball 449 ) can move along the inclined receiving groove or water drop-shaped receiving groove, and the distance between the fixed plate 447 and the rotating plate 448 can be increased by the three balls 449.
- the ball 449 widens the gap between the rotary plate 448 and the fixed plate 447, and the rotary plate 448 moves toward the first friction plate 442 and the second friction plate 444 relatively. While moving, the friction plates can be brought into close contact with each other.
- the friction plates 442 and 444 may be stacked alternately with each other, and may form a strong frictional coupling by being in close contact with each other. 5 and 6, in this embodiment, in order to operate the rotating plate 448, the brake lever 448-2 connected to the parking brake can be pulled up, and the brake lever 448-
- the lever shaft 448-3 is integrally formed with the brake lever 448-2, and the lever shaft 448-3 extends from the front of the extraction housing 420 to the output shaft 410. ) and can enter in a direction parallel to .
- the brake lever 448-2 is formed in front of the extraction housing 420 to minimize the protruding part to the side, and in the same direction as the opening for forming the output shaft 410 in the extraction housing 420 It is formed to facilitate the formation of the extraction housing 420.
- the extraction clutch 430 of the driving extraction device 400 may be used for switching to a 2-wheel mode or a 4-wheel mode when driving a work vehicle.
- the extraction clutch 430 may include a first dog clutch 432 that interlocks with the hollow extraction gear 450 and a second dog clutch 434 that interlocks with the front wheel output shaft 410, and moves the piston according to hydraulic pressure. Depending on this, it is possible to limit the binding between the first dog clutch 432 and the second dog clutch 434 .
- the extraction clutch 430 can switch between the two-wheel mode and the four-wheel mode when the work vehicle 100 is stopped, and the first dog clutch 432 and the second dog clutch 434 of the extraction clutch 430 are In the separated state, it operates in a two-wheel mode, and in a state in which the first dog clutch 432 and the second dog clutch 434 are engaged, it can operate in a four-wheel mode.
- the extraction clutch operated by hydraulic pressure (430) is also preferably automatically bound.
- the extraction clutch 430 is located adjacent to the second brake 440, and the extraction clutch 430 can be automatically linked while the second brake 440 stops.
- an operating sensor 282 is mounted on the parking brake 280 to check whether the second brake 440 is operating. The operation sensor 282 maintains an 0N state and can be switched to an OFF state when the parking brake 280 operates. As shown in FIG.
- spline grooves are formed on the inner surface of the extraction housing 420, and the second friction plate 444 ) and the outer surface of the fixing plate 447 may also be formed as splines.
- the spline outer diameter 447-o of the fixing plate 447 and the spline outer diameter 444-o of the second friction plate 444 may be formed to be the same, and the second friction plate 444 ), the first friction plate 442, the rotation plate 448 of the second brake actuator 446, the ball 449, and the fixing plate 447 may be sequentially assembled along the front wheel output shaft 410.
- first driving wheel 130 second driving wheel
- transmission 310 forward and reverse
- peripheral part 330 high/low speed hydraulic clutch
- drive extractor 410 front wheel output shaft
- hydraulic shift valve device 600 hydraulic PTO valve device
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280078026.0A CN118302319A (zh) | 2021-11-23 | 2022-11-19 | 作业车辆及作业车辆用驱动提取装置 |
EP22898034.8A EP4438370A1 (en) | 2021-11-23 | 2022-11-19 | Work vehicle and driving extraction device of work vehicle |
Applications Claiming Priority (2)
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KR10-2021-0162838 | 2021-11-23 | ||
KR1020210162838A KR102582845B1 (ko) | 2021-11-23 | 2021-11-23 | 작업 차량 및 작업 차량용 구동추출장치 |
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WO2023094956A1 true WO2023094956A1 (ko) | 2023-06-01 |
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PCT/IB2022/061173 WO2023094956A1 (ko) | 2021-11-23 | 2022-11-19 | 작업 차량 및 작업 차량용 구동추출장치 |
Country Status (4)
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EP (1) | EP4438370A1 (ko) |
KR (1) | KR102582845B1 (ko) |
CN (1) | CN118302319A (ko) |
WO (1) | WO2023094956A1 (ko) |
Citations (5)
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JPH066305Y2 (ja) * | 1987-11-02 | 1994-02-16 | 株式会社神崎高級工機製作所 | ディスクブレーキ機構 |
JP2002249033A (ja) * | 2001-02-21 | 2002-09-03 | Yanmar Agricult Equip Co Ltd | 走行車両のブレーキ装置 |
KR20070098488A (ko) * | 2006-03-30 | 2007-10-05 | 가부시끼 가이샤 구보다 | 트랙터의 pto 전동 구조 |
CN102837604A (zh) * | 2012-09-18 | 2012-12-26 | 洛阳聚翔机械科技有限公司 | 拖拉机动力输出制动器与离合器联动操纵装置 |
US20210163064A1 (en) * | 2017-12-08 | 2021-06-03 | Agco International Gmbh | Utility vehicle braking |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2556782B2 (ja) * | 1991-09-20 | 1996-11-20 | セイレイ工業株式会社 | 前輪舵取り車両における旋回機構 |
KR950003840A (ko) * | 1993-07-19 | 1995-02-17 | 이용규 | 광대역 레이다 검출기 |
JP4362187B2 (ja) * | 1999-12-28 | 2009-11-11 | 株式会社 神崎高級工機製作所 | トラクタの前輪駆動クラッチ |
JP2020133796A (ja) * | 2019-02-21 | 2020-08-31 | ヤマハ発動機株式会社 | 車両 |
-
2021
- 2021-11-23 KR KR1020210162838A patent/KR102582845B1/ko active IP Right Grant
-
2022
- 2022-11-19 CN CN202280078026.0A patent/CN118302319A/zh active Pending
- 2022-11-19 WO PCT/IB2022/061173 patent/WO2023094956A1/ko active Application Filing
- 2022-11-19 EP EP22898034.8A patent/EP4438370A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH066305Y2 (ja) * | 1987-11-02 | 1994-02-16 | 株式会社神崎高級工機製作所 | ディスクブレーキ機構 |
JP2002249033A (ja) * | 2001-02-21 | 2002-09-03 | Yanmar Agricult Equip Co Ltd | 走行車両のブレーキ装置 |
KR20070098488A (ko) * | 2006-03-30 | 2007-10-05 | 가부시끼 가이샤 구보다 | 트랙터의 pto 전동 구조 |
CN102837604A (zh) * | 2012-09-18 | 2012-12-26 | 洛阳聚翔机械科技有限公司 | 拖拉机动力输出制动器与离合器联动操纵装置 |
US20210163064A1 (en) * | 2017-12-08 | 2021-06-03 | Agco International Gmbh | Utility vehicle braking |
Also Published As
Publication number | Publication date |
---|---|
CN118302319A (zh) | 2024-07-05 |
KR102582845B1 (ko) | 2023-09-26 |
KR20230076028A (ko) | 2023-05-31 |
EP4438370A1 (en) | 2024-10-02 |
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