SU901132A1

SU901132A1 - Vehicle hydraulic steering mechanism

Info

Publication number: SU901132A1
Application number: SU802922636A
Authority: SU
Inventors: Анатолий Викторович Щуклин; Валерий Богданович Франк; Валерий Акиндинович Манеев
Original assignee: Центральное Проектное Конструкторско-Технологическое Бюро Министерства Цветной Металлургии Казахской Сср
Priority date: 1980-05-07
Filing date: 1980-05-07
Publication date: 1982-01-30

Description

II

Изобретение относитс к машиностроению, а именно к рулевому управлению транспортных средств.The invention relates to mechanical engineering, namely to the steering of vehicles.

Известен гидравлический рулевой механизм транспортного средства, содержащий распределительное устройство, состо щее из корпуса и -золотгинка, кинематически св занного с рулевым колесом и через винтовую передачу-с согласующим устройством и гидравлически соединенного рабочими гидролини ми - с исполш1тельнь1ми гидроцилиндрами, : напорной гидролшшей - с гидронасосом и сливной - с гидробаком 1.A hydraulic vehicle steering mechanism is known, comprising a distribution device consisting of a body and a gold leaf, kinematically connected with the steering wheel and through a helical gear — with a matching device and hydraulically connected by working hydraulic lines — with hydraulic cylinders,: a pressure hydraulic rod — with a hydraulic pump and drain - with hydraulic tank 1.

Недостатком известного гидравлического рулевого механизма вл етс сложность конструкцни согласующего устройства и применение дорогосто щего гидромотора.A disadvantage of the known hydraulic steering mechanism is the complexity of the design of the matching device and the use of an expensive hydraulic motor.

Цель изобретени - упрощение конструк- , цин путем применени в согласующем устройстве гндроцнлшздра поступате1Е ного действи вместо гидромотора.The purpose of the invention is to simplify the design by introducing an action in place of the hydraulic motor in the matching device of the electrical circuit.

Указанна цель достигаетс тем, что, согласующее устройство выполнено в виде гидроцилнндрЭ поступательного действи , штокThis goal is achieved by the fact that the matching device is made in the form of hydrocylindrical translational action

которого кинематически св зан с упом нутой винтовой передачей, а обе полости гидравлически соединены через двухпозиционный гидроуправл емый золотник со сливной гидролинией , причем в сливной гидролшши параллельно двухпозиционному управл емому золотнику установлен напорный золотник, а линии управлени упом нутым двухпознционным золотником соединены с соответствующими работами гидролини ми.which is kinematically connected with the aforementioned screw gear and both cavities are hydraulically connected via a two-position hydraulically-controlled valve with a drain hydroline, and in the drain hydraulic trap parallel to the two-position controlled spool a pressure slide valve is installed, .

10ten

На чертеже изображена схема гвдравлнческогр рулевого механизма.The drawing shows a diagram of the main steering gear.

Гидравлический рулевой механизм -содержит корпус 1 распределительного устройства, в котором расположен золотник 2, который, The hydraulic steering mechanism contains a switchgear body 1, in which there is a valve 2, which,

.IS с одной стороны, посредством щлицевого соединени 3 св зан через рулевой вал 4 с рулевым колесом 5, а с другой стороны с помощью винтовой пары 6 соединен со штоком гидроцилиндра 7 поступательного дей20 стви , обеспечивающего возврат золотника в нейтральное положение..IS, on the one hand, is connected by means of a slit joint 3 through the steering shaft 4 to the steering wheel 5, and on the other hand, by means of a screw pair 6, is connected to the stem of the hydraulic cylinder 7 of the translational action, which ensures the return of the spool to the neutral position.

Claims

Hydraulic cylinder 7 is connected with two-way hydraulically controlled valve 8. In 3 drain lines 9 parallel to spool 8, pressure spool 10 is installed .. Switchgear body 1 is connected by working hydraulic cylinders 11 and 12 with hydraulic pump 14 to hydraulic pump 15 , a safety valve 16 and a beer garden with a hydraulic tank 17. The hydraulic steering mechanism works as follows. When the steering wheel 5 is rotated clockwise, the spool 2 is screwed to the right by means of the screw pair 6. In this case, the fluid from the pressure hydroline 14 through the spool 2 enters the executive hydraulic cylinders 13 and simultaneously into the left control line of the hydraulically controlled spool 8, switching the latter to the position shown in the diagram. The working fluid under pressure sufficient to operate the hydraulic cylinder 7 created by the pressure slide valve 10 enters the piston cavity of the hydraulic cylinder 7, the piston moves to the left and displaces the slide 2 also to the left, and when the steering wheel 5 stops, the slide 2 returns to the neutral position. When turning the steering wheel 5 counterclockwise, the hydraulic steering mechanism operates in the opposite direction. The pressure of the safety valve 16 is defined as the sum of the pressure setting of the pressure slide 9 and the design pressure required for the operation of the actuating hydraulic cylinders 13. When the spool 2 is in neutral position, the hydraulic pump 15 is discharged. As a result, the proposed hydraulic steering mechanism is less expensive to manufacture, since the cost hydraulic cylinder return valve to a neutral position together with the valve of its control is less than the cost of the hydraulic motor from the planet nym gear. The labor intensity of manufacturing the mechanism is also reduced. Claims 11-hydraulic vehicle steering mechanism comprising a switchgear consisting of a housing and a spool kinematically connected to the steering wheel and through a helical gear with a matching device and hydraulically connected by working hydraulic actuators to hydraulic hydrodynamics, a pressure head shaft with a hydraulic pump and drain - with hydraulic tank, characterized in that, in order to simplify the design, the matching device is designed as a hydraulic cylinder of translational action, the current of which is kinematically connected with the said screw gear, and both cavities are hydraulically connected through a two-position hydraulically-controlled valve with a drain hydroline, and in the drain hydraulic lines parallel to the two-way controlled spool, a pressure valve is installed, and the control lines of the said two-position spool are connected to the corresponding workers hydrolines. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 655588, cl. In 62 D 5/06, 1978 (prototype).