CN106697043A - Vehicle steering assist device - Google Patents

Vehicle steering assist device Download PDF

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Publication number
CN106697043A
CN106697043A CN201611253084.5A CN201611253084A CN106697043A CN 106697043 A CN106697043 A CN 106697043A CN 201611253084 A CN201611253084 A CN 201611253084A CN 106697043 A CN106697043 A CN 106697043A
Authority
CN
China
Prior art keywords
steering
oil
cylinder
hinged
machine
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201611253084.5A
Other languages
Chinese (zh)
Inventor
刘海宾
侯登云
徐鹏飞
贺高峰
黄建华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beiben Trucks Group Co Ltd
Original Assignee
Beiben Trucks Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beiben Trucks Group Co Ltd filed Critical Beiben Trucks Group Co Ltd
Priority to CN201611253084.5A priority Critical patent/CN106697043A/en
Publication of CN106697043A publication Critical patent/CN106697043A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/062—Details, component parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/16—Arrangement of linkage connections

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)

Abstract

The invention relates to a vehicle steering assist device, comprising a steering pump, a steering engine (1), an assist cylinder (5), an assist cylinder support (6), a left steering knuckle arm (3) and a right steering knuckle arm (4); the steering engine (1) is a four-port steering engine (1), two oil inlets of the steering engine (1) are connected to an oil outlet of the steering pump and an oil outlet of the assist cylinder (5) respectively, an output shaft of the steering engine (1) is fixedly connected to one end of a plumbing arm, the other end of the plumbing arm is hinged to one end of a steering drag link (2), the other end of the steering drag link (2) is hinged to the left steering knuckle arm (3), another oil outlet of the steering engine (1) is connected to an oil inlet of the assist cylinder (5), and a piston rod of the assist cylinder (5) is hinged to one end of the right steering knuckle arm (4). The front axle load that a steering system can bear is increased effectively, the bearing capacity problem of the steering system is solved effectively, and the steering assist is provided for a single-steering front axle.

Description

一种车辆的转向助力装置A steering assist device for a vehicle

技术领域technical field

本发明属于车辆转向系统技术领域，具体涉及一种车辆的转向助力装置。The invention belongs to the technical field of vehicle steering systems, and in particular relates to a steering assist device for vehicles.

背景技术Background technique

现有的单转向前桥车型采用液压助力转向,液压助力转向系统包括转向泵、转向机1和油壶。当汽车需要转向时，驾驶员对方向盘施加一转向力矩，该力矩通过转向轴传递到转向器，转向泵通过发动机产生的液压助力，液压助力经转向器放大后传到转向垂臂，再通过转向直拉杆2传递给左转向节臂3，使左转向节臂3和它所支承的左转向轮偏转。The existing single-steering front axle vehicle adopts hydraulic power steering, and the hydraulic power steering system includes a steering pump, a steering gear 1 and an oil pot. When the car needs to turn, the driver applies a steering torque to the steering wheel. The torque is transmitted to the steering gear through the steering shaft. The steering pump generates hydraulic power through the engine. The straight tie rod 2 is transmitted to the left steering knuckle arm 3, so that the left steering knuckle arm 3 and the left steering wheel supported by it are deflected.

近年来，随着重型车辆的发展，重型车所携带的上装装备越来越多，前桥的负载越来越大，现有的液压助力系统不能满足前桥载荷加大的要求。In recent years, with the development of heavy vehicles, heavy vehicles carry more and more bodywork equipment, and the load on the front axle is increasing. The existing hydraulic power assist system cannot meet the requirements of the increased load on the front axle.

发明内容Contents of the invention

本发明的目的是提供一种转向助力装置，解决现有的液压助力系统不能满足前桥载荷越来越大的需求。The purpose of the present invention is to provide a power steering device, which solves the problem that the existing hydraulic power assist system cannot meet the increasing demand of the front axle load.

本发明的技术方案是，一种车辆的转向助力装置包括转向泵、转向机、油壶、助力缸、助力缸支座、左转向节臂和右转向节臂。The technical solution of the present invention is that a steering assist device for a vehicle includes a steering pump, a steering gear, an oil pot, a booster cylinder, a support for the booster cylinder, a left steering knuckle arm and a right steering knuckle arm.

转向机采用四油口转向机，转向机的一个进油口与转向泵出油口连接，转向机的一个出油口与油壶进油口连接，转向机的输出轴与垂臂的一端固定连接，垂臂的另一端与转向直拉杆的一端铰接，转向直拉杆的另一端与左转向节臂铰接，转向机的另一个进油口与助力缸出油口连接，转向机的另一个出油口与助力缸进油口连接，助力缸的活塞杆与右转向节臂的一端铰接，助力缸的缸体固定在车架上。The steering gear adopts a four-port steering gear, one oil inlet of the steering gear is connected to the oil outlet of the steering pump, one oil outlet of the steering gear is connected to the oil inlet of the oil pot, and the output shaft of the steering gear is fixed to one end of the drop arm The other end of the drop arm is hinged to one end of the steering straight rod, the other end of the steering straight rod is hinged to the left steering knuckle arm, the other oil inlet of the steering gear is connected to the oil outlet of the booster cylinder, and the other outlet of the steering gear The oil port is connected with the oil inlet of the booster cylinder, the piston rod of the booster cylinder is hinged with one end of the right steering knuckle arm, and the cylinder body of the booster cylinder is fixed on the vehicle frame.

本发明的有益效果是，本发明采用转向机1的助力油口，通过在车辆右侧增加助力缸实现，有效增大转向系统所能承受的前桥载荷，在转向机的最大扭矩不能再增大时，采用本发明的结构可以有效解决转向系统的承受能力，实现了单转向前桥的转向助力装置。The beneficial effect of the present invention is that the present invention adopts the booster oil port of the steering gear 1, which is realized by adding a booster cylinder on the right side of the vehicle, effectively increasing the load on the front axle that the steering system can bear, and the maximum torque of the steering gear can no longer be increased. When it is large, adopting the structure of the present invention can effectively solve the bearing capacity of the steering system and realize the power steering device of the single steering front axle.

附图说明Description of drawings

图1为本发明一种车辆的转向助力装置的结构示意图。FIG. 1 is a structural schematic diagram of a steering assist device for a vehicle according to the present invention.

具体实施方式detailed description

如图1所示，本发明一种车辆的转向助力装置包括转向泵、转向机1、助力缸5、助力缸支座6和右转向节臂4。As shown in FIG. 1 , a vehicle steering assist device of the present invention includes a steering pump, a steering gear 1 , a booster cylinder 5 , a booster cylinder support 6 and a right steering knuckle arm 4 .

转向机1采用四油口转向机1，转向机1的一个进油口与转向泵出油口连接，转向机1的一个出油口与油壶进油口连接。转向机1的输出轴通过花键与垂臂的一端固定连接，垂臂的另一端与转向直拉杆2的一端铰接，转向直拉杆2的另一端与左转向节臂3铰接。转向机1的另一个进油口与助力缸5出油口连接，转向机1的另一个出油口与助力缸5进油口连接。助力缸5的活塞杆与右转向节臂4的一端铰接，助力缸5的缸体固定在车架上。Steering gear 1 adopts four oil port steering gear 1, and an oil inlet of steering gear 1 is connected with steering pump oil outlet, and an oil outlet of steering gear 1 is connected with oil pot oil inlet. The output shaft of the steering gear 1 is fixedly connected with an end of the drop arm by a spline, and the other end of the drop arm is hinged with an end of the steering straight tie rod 2, and the other end of the steering straight tie rod 2 is hinged with the left steering knuckle arm 3. Another oil inlet of the steering gear 1 is connected with the oil outlet of the booster cylinder 5, and another oil outlet of the steering gear 1 is connected with the oil inlet of the booster cylinder 5. The piston rod of the booster cylinder 5 is hinged to one end of the right steering knuckle arm 4, and the cylinder body of the booster cylinder 5 is fixed on the vehicle frame.

本发明的工作过程是，当汽车需要转向时，驾驶员对方向盘施加一转向力矩，该力矩通过转向轴传递到转向机1，转向泵通过发动机产生的液压助力，一部分经转向机1放大后传到垂臂，再通过转向直拉杆2传递给左转向节臂3，使左转向节臂3和它所支承的左转向轮偏转；另一部分液压通过转向机1后，到达了固定在车辆右纵梁上的助力缸5，液压经过助力缸5的放大后，传递到与助力缸5铰接的右转向节臂4，使右转向节臂4和它所支承的右转向轮偏转。所有液压最后通过油管7都流入到油壶。The working process of the present invention is that when the car needs to turn, the driver applies a steering torque to the steering wheel, and the torque is transmitted to the steering gear 1 through the steering shaft. to the drop arm, and then transmitted to the left steering knuckle arm 3 through the steering straight rod 2, so that the left steering knuckle arm 3 and the left steering wheel supported by it deflect; after the other part of the hydraulic pressure passes through the steering gear 1, it arrives at the vehicle fixed on the right longitudinal The booster cylinder 5 on the beam, after the hydraulic pressure is amplified by the booster cylinder 5, is transmitted to the right steering knuckle arm 4 hinged with the booster cylinder 5, so that the right steering knuckle arm 4 and the right steering wheel supported by it are deflected. All hydraulic pressure all flows into the oil pot by oil pipe 7 at last.

Claims (1)

1. a kind of power steering apparatus of vehicle, it is characterized in that：The power steering apparatus include steering pump, turn to machine (1), power-assisted Cylinder (5), servo-cylinder bearing (6), left steering joint arm (3) and right turn joint arm (4)；
Steering machine (1) turns to machine (1) using four hydraulic fluid ports, and an oil inlet for turning to machine (1) is connected with steering pump oil-out, turns to One oil-out of machine (1) is connected with oil can oil inlet, and the output shaft for turning to machine (1) is fixedly connected with one end of plumbing arm, plumbing arm The other end be hinged with one end of steering drag link (2), the other end and the left steering joint arm (3) of steering drag link (2) are hinged, turn It is connected with servo-cylinder (5) oil-out to another oil inlet of machine (1), turns to another oil-out and servo-cylinder (5) of machine (1) Oil inlet is connected, and piston rod and one end of right turn joint arm (4) of servo-cylinder (5) are hinged, and the cylinder body of servo-cylinder (5) is fixed on car On frame.
CN201611253084.5A 2016-12-30 2016-12-30 Vehicle steering assist device Pending CN106697043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611253084.5A CN106697043A (en) 2016-12-30 2016-12-30 Vehicle steering assist device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611253084.5A CN106697043A (en) 2016-12-30 2016-12-30 Vehicle steering assist device

Publications (1)

Publication Number Publication Date
CN106697043A true CN106697043A (en) 2017-05-24

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CN201611253084.5A Pending CN106697043A (en) 2016-12-30 2016-12-30 Vehicle steering assist device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109552409A (en) * 2018-12-25 2019-04-02 北奔重型汽车集团有限公司 A kind of power steering apparatus
CN111169534A (en) * 2019-11-29 2020-05-19 徐工集团工程机械股份有限公司 Engineering truck and steering mechanism and steering control system thereof
CN115135565A (en) * 2020-03-10 2022-09-30 五十铃自动车株式会社 Steering force assist structure and vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990534A (en) * 1975-10-20 1976-11-09 General Motors Corporation Power steering system
CN203332205U (en) * 2013-07-05 2013-12-11 徐州徐工特种汽车有限公司 Non-road mining dump truck large-torque steering system
CN203601361U (en) * 2013-12-06 2014-05-21 东风汽车公司 Automobile power-assisted steering structure
CN206327434U (en) * 2016-12-30 2017-07-14 北奔重型汽车集团有限公司 A kind of power steering apparatus of vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990534A (en) * 1975-10-20 1976-11-09 General Motors Corporation Power steering system
CN203332205U (en) * 2013-07-05 2013-12-11 徐州徐工特种汽车有限公司 Non-road mining dump truck large-torque steering system
CN203601361U (en) * 2013-12-06 2014-05-21 东风汽车公司 Automobile power-assisted steering structure
CN206327434U (en) * 2016-12-30 2017-07-14 北奔重型汽车集团有限公司 A kind of power steering apparatus of vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
古玉锋等: "8×4型重卡液压助力转向系统的仿真与设计研究", 《机械设计》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109552409A (en) * 2018-12-25 2019-04-02 北奔重型汽车集团有限公司 A kind of power steering apparatus
CN111169534A (en) * 2019-11-29 2020-05-19 徐工集团工程机械股份有限公司 Engineering truck and steering mechanism and steering control system thereof
CN111169534B (en) * 2019-11-29 2023-12-08 徐工集团工程机械股份有限公司 An engineering vehicle and its steering mechanism and steering control system
CN115135565A (en) * 2020-03-10 2022-09-30 五十铃自动车株式会社 Steering force assist structure and vehicle

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Application publication date: 20170524

RJ01 Rejection of invention patent application after publication