WO2014178599A1 - Véhicule de travail agricole de type à cabine auquel est appliqué un appareil à direction hydraulique - Google Patents

Véhicule de travail agricole de type à cabine auquel est appliqué un appareil à direction hydraulique Download PDF

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Publication number
WO2014178599A1
WO2014178599A1 PCT/KR2014/003765 KR2014003765W WO2014178599A1 WO 2014178599 A1 WO2014178599 A1 WO 2014178599A1 KR 2014003765 W KR2014003765 W KR 2014003765W WO 2014178599 A1 WO2014178599 A1 WO 2014178599A1
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WO
WIPO (PCT)
Prior art keywords
cabin
driver
seat
engine
hydraulic steering
Prior art date
Application number
PCT/KR2014/003765
Other languages
English (en)
Korean (ko)
Inventor
이헌중
박동균
천귀용
김기주
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 KR1020130144232A external-priority patent/KR102190452B1/ko
Application filed by 대동공업 주식회사 filed Critical 대동공업 주식회사
Publication of WO2014178599A1 publication Critical patent/WO2014178599A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns

Definitions

  • the present invention relates to a farm vehicle, and more particularly, to a cabin type farm vehicle in which a driver's seat is protected by a cabin and a hydraulic steering device is applied for wheel steering.
  • FIG. 1 is a schematic configuration diagram of a conventional cabin-type farm truck equipped with a hydraulic steering device, an oil storage unit 100 in which oil is temporarily stored and a hydraulic pump 120 for compressing the oil temporarily stored therein are located in an engine room.
  • the steering cylinder 200 which is disposed at and operated by hydraulic pressure, is disposed in parallel to the axle in proximity to the steering wheel W in the lower portion of the vehicle front.
  • the steering cylinder 200 is operated by hydraulic pressure controlled in the flow direction by the power steering unit 220 located in the front of the driver's seat to operate the steering wheel (front wheel), the power steering unit 220 is a steering column unit ( It is connected to the steering wheel (steering wheel, 260) located on the driver's front space through the 240.
  • the steering cylinder 200 has two cylinder spaces, which are divided into left and right sides, and the operating fluid controlled by the power steering unit 220 by the steering handle 260 is supplied to one of the two cylinder spaces.
  • the piston rod (not shown) located in the steering cylinder 200 moves horizontally with the pressure difference between the two cylinder spaces to displace the steering wheel.
  • the steering cylinder 200 While steering is performed, the steering cylinder 200 is continuously supplied with working fluid. However, if the working fluid continues to be supplied to one side of the steering cylinder 200 but no longer consumes energy to work, such as a U-turn operation that rotates the handle all the way, the pressure across the hydraulic system There is a risk of excessive rise.
  • a conventional relief valve (not shown) is adopted. Accordingly, the U-turn, which is difficult to supply the working fluid to the steering cylinder 200 anymore, is adopted. In such a situation, the working fluid supplied to the power steering unit 22 is returned to the oil storage unit 100 again through the relief valve.
  • the relief valve In the application of the relief valve, the relief valve is integrally formed in the power steering unit 220 in order to reduce the size of the device and effectively utilize the space through modularization of components.
  • the relief valve as is known, has a problem that irregular noise and vibration occurs during operation in accordance with the flow rate and pressure changes.
  • the technical problem to be solved by the present invention is to effectively reduce the flow noise and vibration generated when the power steering unit is operated when the cabin is protected by a cabin (cabin), the steering of the cabin-type farm truck equipped with a hydraulic steering device. And, accordingly, to implement a cabin-type farm work vehicle that can provide a quiet and comfortable ride.
  • the present invention provides a cabin type agricultural work vehicle in which a driver's seat is protected by a cabin and equipped with a hydraulic steering device, wherein a power steering unit is provided between the engine and the cabin mounted at the engine room bottom in front of the cabin.
  • a cabin-type farm truck applied with a hydraulic steering device, characterized in that arranged.
  • the transmission directly connected to the engine is disposed long in the longitudinal direction before and after the vehicle body, and a mount having a mounting surface is integrally provided on an upper portion of the mission case constituting the external appearance of the transmission, and is mounted on the mounting surface.
  • a stand is installed, and the power steering unit can be mounted above the mission case through a mounting table.
  • It may also be connected to a flywheel housing directly connected to the engine to cover the engine output side flywheel in front of the mission case.
  • a mounting surface may be provided on an upper surface of the flywheel housing, and an elastic support may be installed on the mounting surface.
  • the power steering unit may be connected to the steering column unit disposed in front of the driver's seat through a universal joint.
  • Cabin farming vehicle may further include a vibration insulator interposed between the mounting surface and the mounting table of the mount.
  • the mission case in which the mount is formed may be a clutch housing having a shift clutch installed therein.
  • the power steering unit may be disposed in the penetrating portion of the front partition panel, a part of which is located in the driver's seat and the other part is located in the engine room to separate and partition the driver's seat and the engine room.
  • the sound insulation cover may further include a sound insulation cover partitioned into a predetermined volume over the front compartment panel and the bottom of the driver's seat and forming a sealed space to cover a portion of the power steering unit protruding toward the driver's seat.
  • the cabin-type agricultural work vehicle equipped with a hydraulic steering device unlike the conventional arrangement of the power steering unit around the steering wheel in the cabin, between the engine and the cabin outside the cabin away from the steering wheel
  • the power steering unit By mounting the power steering unit on the space, transmission of abnormal noise by the power steering unit during steering can be minimized.
  • the sound insulation cover to form a closed space to cover a part of the power steering unit derived to the driver's seat side, the abnormal noise caused by the driving of the power steering unit during steering is more reliably blocked. Therefore, it is possible to provide a farming vehicle with improved driver's quietness.
  • the mounting bracket and the elastic support for mounting the power steering unit are installed in the mission case, which is a heavy-duty heavy chain of the components of the agricultural work vehicle, the steering of the power steering unit due to fluid pulsation and steering column unit is being performed. Vibration transmitted to the driver and noise caused by the vibration can be suppressed.
  • vibration-comprising member can implement a cabin-type farm work vehicle that enables a more comfortable and stable ride comfort and solid installation of the components.
  • FIG. 1 is a schematic configuration diagram of a conventional cabin-type farm work vehicle equipped with a hydraulic steering device.
  • Figure 2 is a schematic view from the side of the cabin-type farm work vehicle to which the hydraulic steering apparatus according to an embodiment of the present invention is applied.
  • FIG. 3 is a side schematic view of the hydraulic steering apparatus shown in FIG. 2;
  • Figure 4 is a perspective view of the main portion showing the power steering unit mounting structure of FIG.
  • FIG. 5 is a perspective view of the mission case shown in FIG.
  • FIG. 2 is a schematic side view of the cabin-type farm work vehicle to which the hydraulic steering apparatus is applied according to an embodiment of the present invention
  • Figure 3 is a side schematic view of the hydraulic steering apparatus shown in FIG. 4 is a perspective view illustrating main parts of the power steering unit mounting structure of FIG. 3
  • FIG. 5 is a perspective view of the mission case shown in FIG. 4.
  • the farm work vehicle according to the present invention is protected by a box-shaped cabin (cabin 2) in which the driver's seat (1) is made of transparent glass, the front of the cabin (2) driving the vehicle, including the engine
  • the engine room 3 is provided which forms a space in which the main parts related thereto can be mounted. And the engine room 3 is protected and opened and closed by the lift-open bonnet 4.
  • the engine 5 disposed in the engine room 3 has an output as a control of an engine control unit (ECU, not shown) based on the detected displacement value by the sensor detecting the displacement of the foot axel pedal or the hand axel lever. It may be a regulated electronic multi-cylinder diesel-engine, and is longitudinally disposed along the longitudinal direction of the body at the center of the floor side of the engine room 3 protected by the bonnet 4.
  • ECU engine control unit
  • a steering wheel (steering wheel) 11 for front wheel steering is arranged to be located forward in the driver's seat space in the cabin 2.
  • the power steering unit 12 for controlling the flow of the working fluid to be supplied to the steering cylinder (see conventional drawing Fig. 1) (aka 'power steering oil') is a steering column unit 10 and the universal joint (15) via a medium; Interlocking is possible.
  • the driver's seat 1 and the engine room 3 are separated and separated by mutually independent spaces by the front partition panel 6, and are directly connected to the engine 5, and the power output from the engine is provided at a speed suitable for driving and in a desired direction.
  • a transmission (transmission) 13 for converting is disposed below the driver's seat 1 in the vehicle body length direction from the engine frame (not shown) to the rear axle frame (not shown).
  • the transmission 13 may be a hydraulic configuration in which the clutch is operated in a direction to increase / decelerate the engine output or to reverse the rotational direction according to the hydraulic control linked to the driver shift operation, and to increase or decrease the engine output and to reverse the rotational direction.
  • the mission case 14 constituting the appearance of the transmission is protected by the parts related to the various shifts to be executed.
  • the mounting base 16 is mounted on the mounting surface 170 of the mount 17 provided on one side of the mission case 14 for mounting in this form.
  • the boss portion 122 surrounding the input shaft 120 of the power steering unit 12 is fixed to the mounting table 16 so as to be spaced apart above the mission case 14.
  • the mount 17, which provides a mounting surface on which the mounting table 16 is to be mounted may be a clutch housing incorporating a hydraulic clutch (not shown) among the mission cases 14.
  • Mounting table 16 is fixed to the mounting surface 170 on the top of the mount 17 by a fastening member such as a bolt.
  • a vibration insulator 18 such as rubber for vibration is provided between the mounting surface 170 of the mount 17 and the mounting base 16, to reduce vibrations transmitted from the transmission to the power steering unit 12. May be interposed.
  • the front end of the mission case 14 is connected to a flywheel housing 50 directly connected to the engine so as to cover the output side flywheel of the engine 5.
  • the mounting surface 52 is provided on the top surface of the flywheel housing 50, the elastic support 20 is installed on the mounting surface 52, the power steering unit connected to the mounting base 16 to the elastic support 20 (12) Abut the part on the opposite side.
  • one side and the other side of the power steering unit 12 are mounted on the mounting base 16 and the elastic support 20 installed in the mission case and flywheel housing, which are solid weight chains, and the power steering by fluid pulsation during steering. Self-vibration of the unit 12 and the vibration transmitted to the driver through the steering column unit, and the noise caused by the vibration can be suppressed as much as possible.
  • the elastic support 20 is formed with a recessed surface 22 formed with an inclined surface so that a part of the power steering unit 12 is seated at an angle favorable for connection with the steering column unit 10.
  • a portion of the power steering unit 12, for example, is inclined toward the driver's seat so that one end thereof is inclined in contact with the elevation 22 as shown in the figure.
  • the power steering unit 12 disposed above the mission case 14 in such a way that one side and the other side of the elastic support 20 and the mounting table 16 is supported, a part of which is located in the driver's seat, as shown in the drawing.
  • the remaining part is disposed in the penetrating portion 60 of the front compartment panel 6 that separates the driver's seat and the engine room in a form located in the engine room.
  • the sound insulation cover 9 is installed in the form of a polyhedron of a predetermined volume across the front compartment panel 6 and the bottom of the driver's seat 1 to cover a part of the power steering unit 12 protruding toward the driver's seat. For this reason, the noise (fluid flow noise) generated when the power steering unit 12 partially protrudes toward the driver's seat is prevented from being transmitted to the driver's seat.
  • the sound insulation cover 9 can completely cover a part of the power steering unit 12 partially protruding toward the driver's seat, there is no particular limitation on the structure or shape thereof, and the inner surface of the sound insulation cover 9, that is, the power steering unit 12. Although not shown in the figure on the side facing the sound absorbing material may be attached to reduce the noise through effective sound absorption.
  • a through hole (not shown) is formed at one side of the sound insulation cover 9 so that the spline shaft 10a constituting the steering column unit 10 can pass therethrough.
  • the end of the steering column 10b constituting the outer shape of the steering column unit 10 while surrounding the spline shaft 10a on the outer surface of the sound insulation cover 9 around the through hole is abutted through a fastening member such as a bolt. It is fixed.
  • the boundary between the mission case 14 and the flywheel housing 50 approximately coincides with the axis of the front compartment panel 6 such that the mounting base 16 is located in the sound insulation cover 9 of the driver's seat and the engine room boundary. Accordingly, the input shaft 120 of the power steering unit 12 and the spline shaft 10a of the steering column unit 10 are connected to the universal joint 15 in the sound insulation cover 9.
  • the upper part of the mounting base 16 is approximately diagonally facing the driver's side so that the power steering unit 12 can be disposed in an advantageous shape in that it is interconnected through the steering column unit 10 and the universal joint 15. It is configured to be inclined in one direction so as to face the steering wheel 1 positioned upward in the direction.
  • the steering column unit 10 is disposed between the steering handle 11 and the power steering unit 12 is a known form that can adjust the angle of the steering handle 11 according to the user's physical condition
  • the steering column unit ( The spline shaft 10a constituting 10) is also of a known telescopic type that is capable of responding to varying axial lengths in adjusting the angle of the steering handle.
  • reference numeral 19 denotes a support bracket extending from the front compartment panel 6 and supporting the steering column unit 10 so as to be rotatable.
  • the steering device is mounted on the space between the engine and the cabin outside the cabin away from the steering wheel, thereby steering.
  • the transmission of abnormal noise by the power steering unit during operation can be minimized.
  • the sound insulation cover to form a closed space to cover a part of the power steering unit derived to the driver's seat side, the abnormal noise caused by the driving of the power steering unit during steering is more reliably blocked. Therefore, it is possible to provide a farming vehicle with improved driver's quietness.
  • the mounting bracket and the elastic support for mounting the power steering unit are installed in the mission case, which is a heavy-duty heavy chain of the components of the agricultural work vehicle, the steering of the power steering unit due to fluid pulsation and steering column unit is being performed. Vibration transmitted to the driver and noise caused by the vibration can be suppressed.
  • vibration-comprising member can implement a cabin-type farm work vehicle that enables a more comfortable and stable ride comfort and solid installation of the components.
  • Cabin-type agricultural work vehicle according to the present invention can be used for a variety of applications, such as civil engineering work, towing a vehicle, as well as the use for additional cultivation by attaching a variety of work machines.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

La présente invention se rapporte à un véhicule de travail agricole de type à cabine possédant un siège de conducteur protégé par une cabine, auquel est appliqué un appareil à direction hydraulique. Selon la présente invention, un véhicule de travail agricole de type à cabine auquel est appliqué un appareil à direction hydraulique est configuré de sorte qu'une transmission est disposée sur le côté inférieur du siège du conducteur dans le sens de la longueur d'une carrosserie de véhicule, une monture est disposée dans un boîtier de mission constituant l'aspect extérieur de la transmission et formant une surface de montage, et des unités de direction assistée sont agencées sur le côté supérieur du boîtier de mission au moyen d'une base de montage fixée sur la surface de montage, pour être espacées les unes des autres.
PCT/KR2014/003765 2013-04-29 2014-04-29 Véhicule de travail agricole de type à cabine auquel est appliqué un appareil à direction hydraulique WO2014178599A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20130047688 2013-04-29
KR10-2013-0047688 2013-04-29
KR10-2013-0144232 2013-11-26
KR1020130144232A KR102190452B1 (ko) 2013-04-29 2013-11-26 유압식 조향장치가 적용된 캐빈형 농작업차

Publications (1)

Publication Number Publication Date
WO2014178599A1 true WO2014178599A1 (fr) 2014-11-06

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Application Number Title Priority Date Filing Date
PCT/KR2014/003765 WO2014178599A1 (fr) 2013-04-29 2014-04-29 Véhicule de travail agricole de type à cabine auquel est appliqué un appareil à direction hydraulique

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WO (1) WO2014178599A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019092516A1 (fr) * 2017-11-10 2019-05-16 Same Deutz-Fahr Italia S.P.A. Ensemble de réglage d'un système de direction hydraulique d'un véhicule
WO2020165819A1 (fr) * 2019-02-13 2020-08-20 Proxecto Engineering Services Llp Véhicule agricole hybride

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04254256A (ja) * 1991-02-01 1992-09-09 Kubota Corp 作業車のステアリング構造
JP2000247239A (ja) * 1999-02-26 2000-09-12 Yanmar Diesel Engine Co Ltd 作業車両のステアリング構造
JP2001048045A (ja) * 1999-08-09 2001-02-20 Yanmar Agricult Equip Co Ltd 農作業機
JP2006205763A (ja) * 2005-01-25 2006-08-10 Kubota Corp キャビン装置
KR20090090510A (ko) * 2008-02-21 2009-08-26 엘에스엠트론 주식회사 소음진동 방지기능을 가지는 트랙터 캐빈의 조향장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04254256A (ja) * 1991-02-01 1992-09-09 Kubota Corp 作業車のステアリング構造
JP2000247239A (ja) * 1999-02-26 2000-09-12 Yanmar Diesel Engine Co Ltd 作業車両のステアリング構造
JP2001048045A (ja) * 1999-08-09 2001-02-20 Yanmar Agricult Equip Co Ltd 農作業機
JP2006205763A (ja) * 2005-01-25 2006-08-10 Kubota Corp キャビン装置
KR20090090510A (ko) * 2008-02-21 2009-08-26 엘에스엠트론 주식회사 소음진동 방지기능을 가지는 트랙터 캐빈의 조향장치

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019092516A1 (fr) * 2017-11-10 2019-05-16 Same Deutz-Fahr Italia S.P.A. Ensemble de réglage d'un système de direction hydraulique d'un véhicule
CN111315636A (zh) * 2017-11-10 2020-06-19 赛迈道依茨-法尔意大利股份公司 车辆的液压转向系统的调节组件
CN111315636B (zh) * 2017-11-10 2022-02-25 赛迈道依茨-法尔意大利股份公司 车辆的液压转向系统的调节组件
US11459014B2 (en) 2017-11-10 2022-10-04 Same Deutz-Fahr Italia S.P.A. Adjustment assembly of a hydraulic steering system of a vehicle
WO2020165819A1 (fr) * 2019-02-13 2020-08-20 Proxecto Engineering Services Llp Véhicule agricole hybride

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