WO2015183011A1 - Cartier d'essieu arrière de véhicule de travail agricole et ensemble essieu arrière de véhicule de travail agricole comprenant ledit carter - Google Patents

Cartier d'essieu arrière de véhicule de travail agricole et ensemble essieu arrière de véhicule de travail agricole comprenant ledit carter Download PDF

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Publication number
WO2015183011A1
WO2015183011A1 PCT/KR2015/005356 KR2015005356W WO2015183011A1 WO 2015183011 A1 WO2015183011 A1 WO 2015183011A1 KR 2015005356 W KR2015005356 W KR 2015005356W WO 2015183011 A1 WO2015183011 A1 WO 2015183011A1
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WO
WIPO (PCT)
Prior art keywords
rear axle
case
work vehicle
differential
reduction gear
Prior art date
Application number
PCT/KR2015/005356
Other languages
English (en)
Korean (ko)
Inventor
박동욱
이재홍
Original Assignee
대동공업 주식회사
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
Priority claimed from KR1020140131817A external-priority patent/KR101876886B1/ko
Application filed by 대동공업 주식회사 filed Critical 대동공업 주식회사
Priority to CN201580005621.1A priority Critical patent/CN106414141B/zh
Priority to US15/112,863 priority patent/US9919558B2/en
Publication of WO2015183011A1 publication Critical patent/WO2015183011A1/fr

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
    • A01D41/12—Details of combines
    • 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
    • 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
    • B60K25/00—Auxiliary drives
    • B60K25/06—Auxiliary drives from the transmission power take-off

Definitions

  • the present invention relates to a rear axle case of an agricultural work vehicle and a rear axle combination of an agricultural work vehicle, and more particularly, to a rear axle case of an agricultural work vehicle in which a rear axle for transmitting a final shifted driving power to a wheel is accommodated. It is about rear axle combination of agricultural work vehicle to do.
  • the agricultural work truck called 'Tractor' is similar in structure to the general cars, but it is equipped with a powerful engine, so it is mainly used for cultivation because it has good traction and is strong. It is configured to selectively attach or detach various types of work machines.
  • the shift section should be wide in order to optimally adjust the traveling speed and the rotational speed of the power take-off shaft (PTO shaft) according to the soil quality of the work target.
  • PTO shaft power take-off shaft
  • FIG. 1 is a structural diagram showing a mission combination (shift combination) applied to a conventional agricultural work vehicle.
  • a conventional mission combination is largely divided into a mission unit 1 and a rear wheel drive unit 9 (rear axle combination).
  • the mission unit 1 is, again, a shuttle transmission unit 2 for forward and reverse shifts, a peripheral speed unit 3 and a sub transmission unit 4 for realizing a wide range of shift stages, a front turn wheel function and a front wheel for driving the front wheels. It is divided into the drive part 5, and the rear drive part 6 distributes the power which the mission part 1 finally shifted to the left and right rear wheels suitably.
  • the shuttle transmission portion 2 constituting the mission portion 1 is configured in a hydraulic multi-plate clutch system in which a selective power connection is realized by the hydraulic oil which is allowed to flow by the driver lever operation.
  • the peripheral speed portion 3 is composed of a multi-stage (four-stage) gear of the synchronizer type, and the sub-speed transmission portion 4 can be selectively bitten by moving a pair of gears having different gear ratios in conjunction with the lever operation. have.
  • the front wheel drive unit 5 is configured as a hydraulic multi-plate clutch, similar to the shuttle transmission unit 2, and a mission case 8 which provides a space in which the various parts constituting the mission unit 1 and the rear drive unit 6 are sealed. Protected by).
  • the mission case 8 may be filled with a liquid lubricant so that smooth transmission and power transmission may be performed, and friction and wear between parts may be prevented.
  • Reference numeral 7 denotes a PTO drive unit which draws engine power out of the gas in order to use the power output from the engine as power for driving the work machine
  • 35 denotes a counter shaft in which gears for shifting are freely rotated or rotated freely.
  • Figure 2 is a view showing the rear differential (rear axle combination) applied to the conventional mission combination.
  • the rear wheel part 9 includes a rear wheel part case 90 and a rear wheel part case in which a differential device 91 for distributing the driving power shifted according to the driving situation is appropriately distributed to the left and right rear wheels.
  • 90 is composed of a brake case 93 to protect the brake unit 92, which is assembled to both left and right sides and spaced apart from both sides of the differential, and a rear axle case 96 in which the rear axle 95 is installed.
  • the ring gear (bevel driven gear 910) constituting the differential device 91 receives power from a bevel pinion (bevel drive gear, not shown) that outputs the final shifted power through a peripheral speed and a sub-shift process.
  • the device 91 and the differential shaft 94 connected thereto are rotated, and the rear axle 95 connected to the differential shaft 94 is rotated so that the left and right rear wheels rotate at the final speed.
  • the case constituting the rear differential unit (rear axle combination) applied to a conventional agricultural work vehicle is a rear axle case 96 coupled to the rear differential unit case 90, the brake case 93, and the brake case 93.
  • the configuration is complicated and the number of parts is disadvantageous in terms of cost reduction, and there is a problem that is difficult to assemble.
  • the problem to be solved by the present invention is to reduce the number of parts, reduce the cost, and improve device assembly through the integration of components.
  • Another problem to be solved by the present invention is to realize the compactness of the device through efficient component placement in a limited space.
  • Another problem to be solved by the present invention is to provide a rear axle combination of a farming work vehicle structure that can additionally install a Roll Over Protective Structure (ROPS) for driver protection without securing a separate space.
  • ROPS Roll Over Protective Structure
  • a reduction gear cover part provided integrally with the rear axle cover part side;
  • a differential shaft cover part integrally formed at the front end of the reduction gear cover part to cover the differential shaft extending out of the rear differential part case;
  • a brake unit cover part integrally provided at an opening side of the differential shaft cover part in a form of covering one side opening of the differential shaft cover part to form a space in which a multi-plate brake unit can be installed between the rear differential part case and the cover unit. It provides a rear axle case of the agricultural work vehicle including.
  • the reduction gear cover portion is provided with a reduction gear accommodating space for arranging the reduction gear connected to the differential shaft side so as to be capable of power transmission, and the side of the rear axle cover portion opposite to the rear differential case case. This can be an open configuration.
  • the differential shaft cover portion the differential shaft receiving space for communicating with the inner space of the reduction gear cover portion for receiving the differential shaft extending out of the rear differential unit case; And a bearing fixing part in which a bearing member for rotatably supporting the differential shaft is fixed.
  • a bearing fixing surface may be provided on a main surface of the center through hole through which the differential shaft penetrates the center of the cover of the brake unit and the differential shaft penetrates.
  • the rear axle case according to an aspect of the present invention may further include a brake operation lever mounting portion integrally formed around the differential shaft cover portion.
  • the center of the reduction gear cover portion, the center of the differential shaft cover portion, and the height of the center of the rear axle cover portion may be the same configuration.
  • the diameter of the reduction gear cover portion may be larger than the differential shaft cover portion and the rear axle cover portion, it is preferable to configure the center of the rear axle cover portion and the center of the reduction gear cover portion.
  • the rear axle cover portion and the reduction gear cover portion ROPS mounting unit for mounting the ROPS (Roll Over Protective Structure) formed integrally on the outer edge; may further include a.
  • a lower link mounting unit integrally formed on the outer axle of the rear axle cover portion or the reduction gear cover portion below the ROPS mount; And a check link attaching surface formed on an adjacent side of the lower link attaching stand.
  • the apparatus may further include a seat frame support mount formed integrally with the upper edge of the reduction gear cover and providing a mounting surface for installing the seat frame support.
  • the rear axle case according to the one side is provided in a pair of left and right, rear rear case case disposed between the rear axle case and the rear vehicle in the rear vehicle case
  • a rear axle combination of an agricultural work vehicle including a transmission unit disposed to be capable of transmitting power to each other over a shaft case and a brake unit disposed between the rear axle case and the rear wheel case to generate a braking force for stopping the vehicle.
  • the driver protection structure (ROPS) that is supported on the ROPS mount is formed integrally with the outer edge of the rear axle case may further include.
  • the apparatus may further include a seat frame support installed at a seat frame support mounting hole integrally formed at an upper outer edge of the rear reduction gear cover of the rear axle case.
  • the transmission members may include a differential device disposed in a rear differential case for distributing driving force to both wheels, a differential shaft extending left and right from the differential to partially extend the rear differential case, and a reduction gear of the rear axle case.
  • a reduction gear which is accommodated in the cover part and is connected to the differential shaft extending out of the rear driving part case so as to transmit power, and the rear axle which is coupled to the reduction gear and is rotatably disposed in the rear axle cover part of the rear axle case; Can be configured.
  • it may further comprise a differential lock to limit the deflected power transfer of the differential.
  • the brake unit is a dry multi-plate brake type in which a rotating disk and a fixed side plate are sequentially arranged at predetermined intervals, and a rotating plate having a plurality of ball grooves in a circumferential direction in which dent depth gradually increases on one surface thereof, and a ball groove of a rotating plate. And it may be a configuration including a steel ball interposed between the ball groove on the rear side of the case portion corresponding to the ball groove.
  • an input end through which a rotational force for generating braking force is input may be integrally provided at a part of the circumference of the rotating plate, and may further include an operation cam having a cam surface in contact with the input end.
  • the contact surface of the input end in contact with the actuating cam is a flat surface
  • the actuating cam may be composed of a flat portion in contact with the contact surface of the input end and an arc-shaped curved portion of the back surface of the flat portion.
  • the rear axle case surrounding the rear axle and the brake case for protecting the brake unit are provided in an integrated form into a single case, so that the components can be reduced in comparison with the conventional structure in which the two components are separated. It can achieve price competitiveness by simplifying the cost and reducing the cost, and can increase the ease of assembly.
  • FIG. 1 is a structural diagram of a mission combination (shift combination) of a conventional agricultural work vehicle.
  • Figure 2 is a cross-sectional view of the rear vehicle is applied to the conventional mission combination of FIG.
  • Figure 3 is a side view of a farming vehicle in accordance with the present invention.
  • FIG. 4 is a plan view of a farm work vehicle according to the present invention.
  • FIG. 5 is a perspective view of a rear axle case according to an aspect of the present invention applied to the agricultural work vehicle of FIG.
  • Figure 6 is a perspective view of the rear axle case shown in Figure 5 from another angle.
  • Figure 7 is a left side view of the rear axle case shown in Figure 5;
  • FIG. 8 is a right side view of the rear axle case shown in FIG.
  • FIG. 9 is a cross-sectional view of the rear axle case shown in FIG.
  • FIG. 10 is a perspective view of the rear axle combination of the agricultural work vehicle including the rear axle case shown in FIG.
  • FIG. 11 is a side cross-sectional view of the rear axle combination of the agricultural work vehicle including the rear axle case illustrated in FIG. 5, cut in the vehicle width direction.
  • FIG. 12 is an enlarged view of an 'A' part in which a brake unit is installed in FIG. 11;
  • FIG. 13 is an enlarged perspective view of a portion where the rotating plate of the brake unit and the operating cam are in cam contact with each other;
  • FIG. 15 is a rear view of the driver protection structure (ROPS) mounted on the ROPS mount shown in FIG. 14;
  • ROPS driver protection structure
  • FIG. 16 is a perspective view illustrating a lower link and a check link and a driver's seat frame support for connecting a rear work machine to a rear axle case constituting a rear axle combination of a farm work vehicle;
  • Figure 3 is a side view of the agricultural work vehicle according to the present invention
  • Figure 4 is a plan view of the agricultural work vehicle shown in FIG.
  • the overall configuration of the agricultural work vehicle related to the present invention will be first outlined with reference to these drawings.
  • the agricultural work vehicle according to the present invention includes an engine room 30 covered with a bonnet in front of the traveling body.
  • the engine room 30 includes the engine 50 and other main parts related to driving the vehicle.
  • the engine room 30 includes a steering wheel for omnidirectional steering (not shown) at the rear of the engine room 30, various levers for operating the aircraft, A driver's seat 10 equipped with buttons, switches, and the like is disposed.
  • a three-point elevating device 70 is provided for towing connection of various work machines.
  • the traveling body provided with the engine room 30, the driver's seat 10, and the lifting device 70 is a pair of steering front wheels FW arrange
  • the front wheel (FW) is connected to the bottom of the engine frame (2) in front of the body, and the front axle housing (40) in which the front wheel (FW) has a pair of left and right differential shafts for power transmission is disposed in the left and right width directions. do.
  • the rear wheels (RW) disposed at the rear of the body is coupled to the tip of the exposed portion of the rear axle 65 surrounded by the rear axle case (65) on both sides of the rear of the rear rear case part (60).
  • the engine frame 20 and the rear driving unit case 60 are connected to each other through a mission case 8 disposed at the bottom of the driver's seat in the longitudinal direction of the vehicle to form a rigid chassis, and the rear driving unit case 60 is formed.
  • a differential device (described later) for distributing the final shifted power to the left and right rear wheels is provided via a transmission device arranged in the mission case 8.
  • the rear axle case 66 includes a rear axle cover portion 660 having a hollow tube shape surrounding the rear axle 65 and the rear axle cover. It includes a reduction gear cover portion 662 integrally provided on the side portion 660. A differential shaft cover portion 664 is integrally formed on one side of the reduction gear cover portion 662 to cover the differential shaft 62 (see FIG. 11) extending out of the rear differential case 60.
  • the brake unit cover part 666 is integrally provided on the opening side of the differential shaft cover part 664 in a form covering the opening of one side of the differential shaft cover part 664, and is provided by the brake unit cover part 666.
  • a space in which the multi-plate brake unit 68 may be installed is formed between the rear differential case 60 and the brake unit cover 666.
  • the reduction gear cover part 662 is provided with a reduction gear 63 accommodating space S1 in which a reduction gear 63 (see FIG. 11) is connected to the differential shaft 62 so as to transmit power.
  • the reduction gear cover part 662 has an opening in a side contacting the rear drive part case 60 opposite to the rear axle cover part 660, and the reduction gear 63 enters through the opening to receive the accommodation space ( It is located in S1).
  • the differential shaft cover 664 communicates with the inner space of the reduction gear cover portion 662, that is, the reduction gear accommodation space S1 and extends out of the rear differential case 60.
  • a bearing fixing part in which a differential shaft 62 accommodating space S2 is formed and a bearing member is fixed so that an end of the differential shaft 62 disposed in the differential shaft 62 accommodating space is rotatably supported. 665 is provided.
  • the height of the center C1 of the reduction gear cover 662, the center C2 of the differential shaft cover 664, and the center C3 of the rear axle cover 660 are the same, and the differential shaft cover 664 is the same. And a diameter of the reduction gear cover 662 is larger than that of the rear axle cover 660.
  • the center C3 of the rear axle cover 660 and the center C1 of the reduction gear cover 662 coincide with each other.
  • a through hole 667 is formed in the center of the brake unit cover part 666 so that the differential shaft 62 extending to the rear differential case 60 is penetrated, and the center through which the differential shaft 62 penetrates.
  • a bearing fixing surface 668 is formed on a main surface of the through hole 667, and a bearing member for rotatably supporting a part of the differential shaft 62 is fitted and fixed in a press-fit manner.
  • the rear axle case 66 may further include a brake operating lever mounting portion 669 integrally formed around the differential shaft cover portion 664.
  • the rear axle cover part 660 or the reduction gear cover part 662 may further include an ROPS mounting unit 661 for mounting a driver protection structure (ROPS; Roll Over Orotective Structure).
  • ROPS driver protection structure
  • the rear axle case 66 may further include a lower link mounting unit 670 on the outer edge of the rear axle cover portion 660 or the reduction gear cover portion 662 below the ROPS mount 661. It may be further provided integrally, the check link attaching surface 672 may be further formed on the side adjacent to the lower link mounting (670). And it may further include a seat frame support mounting hole 674 integrally formed on the upper outer edge of the reduction gear cover portion 662.
  • the lower link attachment 670 is provided with a lower link 72 (refer to FIG. 16) for connection with a rear work machine such as a rake and a rotavator, and the lower link is mounted on the check link attachment surface 672.
  • Check links 72 (see FIG. 16) for adjusting the left and right spacing of the link 72 may be attached.
  • the seat frame support mounting hole 674 is provided with a seat frame support for supporting a seat frame (not shown) at the bottom of the driver's seat 11 (see FIG. 3) (see FIG. 16).
  • a rear axle combination including a rear axle case according to an aspect of the present invention will be described below with reference to FIG.
  • FIG. 10 is a perspective view of the rear axle combination of the agricultural work vehicle including the rear axle case 66 illustrated in FIG. 4, and FIG. 11 is a rear axle combination of the agricultural work vehicle including the rear axle case illustrated in FIG. 4. It is the horizontal cross section figure cut in the vehicle width direction.
  • the rear axle combination 6 includes the rear axle case 66 which is disposed opposite to the left and right, the rear axle case 60 disposed between the rear axle cases 66, Transmission members disposed to be capable of transmitting power from the rear axle case 60 to the rear axle case 66, and a brake unit 68 mounted between the rear axle case 66 and the rear axle case 60. do.
  • the transmission members include a differential device 61 disposed in the rear differential case 60 and a pair of left and right differential shafts 62 extending from the differential device 61 to the left and right sides.
  • the reduction gear 63 is accommodated in the reduction gear cover portion 662 of the rear axle case 66 and coupled to the differential shaft 62 so as to transmit power, and the reduction gear 63 is coupled to the rear axle case 66.
  • the rear axle 65 extends through the inside and out of the case.
  • the differential device 61 functions to distribute the driving force to both wheels (left and right rear wheels) and is integral with the differential case 610, the differential pinion 612 and the differential case 610 disposed in the differential case 610.
  • Such a differential device 61 is a known technique, and thus a detailed description of more specific configuration and operation thereof will be omitted.
  • Power distributed through the differential device 61 is transmitted to the differential shaft 62 extending to the left and right sides of the differential device 61 through the side gear 616. And it is transmitted to the reduction gear 63 which is connected to the differential shaft 62 so as to transmit power within the differential shaft cover portion 664 of the rear axle case 66, the rear axle along the rear axle cover portion 660 It is transmitted to the wheels (rear wheels) via a rear axle 65 extending out of the case 66.
  • Reference numeral 64 denotes a differential fixing device that limits the deflected power transmission of the differential device 61.
  • Differential fixing device 64 is to solve the phenomenon that the driving force is applied only to the other side of the wheel with a relatively low load in the work situation in which the load is biased only on one wheel, the differential shaft 62 and the differential case ( 610 is interlockably connected so that the two differential shafts 62 can be rotated at the same speed.
  • the differential fixing device 64 preferably includes a differential fork shaft 640 connected to a differential fixing lever (not shown), a differential fork 642 connected to the differential fork shaft 640 so as to be interlocked, and one side (in the drawing). Left) It is composed of a differential shift 644 is disposed rotatably on the differential shaft 62 and moves along the differential shaft 62, the differential shift 644 in conjunction with the retraction movement of the differential fork ( By moving 62, the differential shaft 62 and the differential case 610 are integrally rotatable.
  • differential fixing device 64 when the differential fixing device 64 is operated by stepping on a differential fixing lever (not shown), the differential fork shaft 640 rotates and the differential fork 642 is moved in the axial direction.
  • the differential shift 644 is moved in a direction in which the differential shaft 62 and the differential case 610 are directly connected to each other so as to transmit power, thereby performing differential fixation.
  • a brake unit will be described below with reference to FIG. 12.
  • the brake unit 68 is a dry multi-plate brake type in which the rotating side disk 680 and the fixed side plate 682 are sequentially disposed at predetermined intervals, and the ball groove gradually increasing the depth of depression on one surface thereof.
  • Steel balls (not shown) between the rotating plate 684 formed a plurality of (H) in the circumferential direction, the ball groove (H) of the rotating plate 684 and the ball groove (side not shown) of the side of the rear drive unit case 60 corresponding to the ball groove (H) It consists of a structure through B).
  • a part of the circumference of the rotating plate 684 is integrally provided with an input end 685 for inputting a rotational force for generating a braking force, and the input end 685 is provided with a cam surface of the operation cam 67 installed in the brake operation lever mounting portion 669.
  • Cam contact In this case, as shown in FIG. 13, the contact surface of the input end 685 contacting the actuating cam 67 is a flat surface, and the actuating cam 67 is a flat part 670 and the planar part 670 contacting the contact surface of the input end 685. And an arc-shaped curved portion 672 on the back side.
  • FIG. 14 is an enlarged view of a portion in which the driver protection structure ROPS mount is formed
  • FIG. 15 is a view of the driver protection structure ROPS mounted on the ROPS mount shown in FIG.
  • the ROPS mount 661 which has been briefly described above, is integrally formed at the outer edge rear portion of the rear axle case 66.
  • a ROPS (Roll Over Orotective Structure) 69 is supported on the ROPS mount 661 to protect the driver from an overturning of the vehicle.
  • the ROPS mount 661 is not limited to the illustrated form because the ROPS mount 661 may vary depending on the cross-sectional shape or the overall structure of the driver protection structure 69, and the ROPS mount 661 is disposed at a lower end of the driver protection structure 69. ) May be provided integrally with the mounting bracket 690 to form a mounting surface for coupling with the).
  • FIG. 16 is a perspective view illustrating a lower link, a check link, and a driver seat frame frame support for connecting a rear work machine to a rear axle case constituting the rear axle combination of the agricultural work vehicle.
  • the rear axle combination includes a left side installed in the lower link mounting portion 670 formed in the rear axle cover portion or the reduction gear cover portion under the ROPS mount 661. It may further include a pair of lower link (72).
  • the lower link 72 is configured to be connected to a rear work device such as a rake and a rotavator at the rear of a farm work vehicle so that the length can be adjusted according to the work machine shape.
  • the check link attachment surface 672 formed at the adjacent side of the lower link mounting stand 670 may be attached with a check link 72 for adjusting the left and right spacing between the left and right pair of lower links 72.
  • the apparatus may further include a seat frame support 110 mounted to the seat frame support mounting hole 674 and supporting a seat frame (not shown) at the bottom of the driver's seat 11 (see FIG. 3).
  • the rear axle case surrounding the rear axle and the brake case protecting the brake unit are provided in an integrated form as a single case, thereby reducing the number of parts compared to the conventional structure in which the two components are separated. It can achieve price competitiveness by simplifying the configuration and reducing the cost, and can increase the ease of assembly.
  • ROPS driver protection structure

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Motor Power Transmission Devices (AREA)
  • Arrangement Of Transmissions (AREA)
  • Retarders (AREA)

Abstract

L'invention concerne un carter d'essieu arrière d'un véhicule de travail agricole, ainsi qu'un ensemble essieu arrière le comprenant. Dans un aspect de l'invention, le carter d'essieu arrière de véhicule de travail agricole comprend : une partie enveloppe d'essieu arrière en forme de tuyau creux destinée à entourer un essieu arrière ; une partie enveloppe d'engrenage réducteur disposée solidaire à côté de la partie enveloppe d'essieu arrière ; une partie enveloppe d'arbre de différentiel formée solidaire de l'extrémité avant de la partie enveloppe d'engrenage réducteur, de sorte à recouvrir un arbre de différentiel s'étendant à l'extérieur d'un boîtier de partie de différentiel arrière ; et une partie enveloppe d'unité de freinage disposée solidaire d'une ouverture de la partie enveloppe d'arbre de différentiel sous une forme dans laquelle une ouverture latérale de la partie enveloppe d'arbre de différentiel est recouverte, de sorte qu'un espace dans lequel une unité de freinage à disques multiples peut être disposée soit formé entre la partie enveloppe d'unité de freinage et le boîtier de partie de différentiel arrière.
PCT/KR2015/005356 2014-05-29 2015-05-28 Cartier d'essieu arrière de véhicule de travail agricole et ensemble essieu arrière de véhicule de travail agricole comprenant ledit carter WO2015183011A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201580005621.1A CN106414141B (zh) 2014-05-29 2015-05-28 农用工作车的后车轴壳及包括此的农用工作车的后车轴总成
US15/112,863 US9919558B2 (en) 2014-05-29 2015-05-28 Rear axle case of agricultural work vehicle and rear axle assembly of agricultural work vehicle, including same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2014-0065129 2014-05-29
KR20140065129 2014-05-29
KR10-2014-0131817 2014-09-30
KR1020140131817A KR101876886B1 (ko) 2014-05-29 2014-09-30 농용 작업차의 뒷차축 케이스 및 이를 포함하는 농용 작업차의 뒷차축 조합

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63159104A (ja) * 1986-12-24 1988-07-02 Isuzu Motors Ltd リアアクスルケ−ス
JPH07144504A (ja) * 1993-11-26 1995-06-06 Kubota Corp トラクタの後車軸ケース装置
JP2000264085A (ja) * 1999-03-18 2000-09-26 Iseki & Co Ltd 作業車両のリヤアクスルハウジング
JP2011122709A (ja) * 2009-12-14 2011-06-23 Yanmar Co Ltd ブレーキ装置
KR20110107278A (ko) * 2010-03-24 2011-09-30 가부시끼 가이샤 구보다 트랙터

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63159104A (ja) * 1986-12-24 1988-07-02 Isuzu Motors Ltd リアアクスルケ−ス
JPH07144504A (ja) * 1993-11-26 1995-06-06 Kubota Corp トラクタの後車軸ケース装置
JP2000264085A (ja) * 1999-03-18 2000-09-26 Iseki & Co Ltd 作業車両のリヤアクスルハウジング
JP2011122709A (ja) * 2009-12-14 2011-06-23 Yanmar Co Ltd ブレーキ装置
KR20110107278A (ko) * 2010-03-24 2011-09-30 가부시끼 가이샤 구보다 트랙터

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