RU99111253A - DEVICE FOR CONTROL AND ADJUSTMENT OF WORKING CYLINDERS - Google Patents

DEVICE FOR CONTROL AND ADJUSTMENT OF WORKING CYLINDERS

Info

Publication number
RU99111253A
RU99111253A RU99111253/06A RU99111253A RU99111253A RU 99111253 A RU99111253 A RU 99111253A RU 99111253/06 A RU99111253/06 A RU 99111253/06A RU 99111253 A RU99111253 A RU 99111253A RU 99111253 A RU99111253 A RU 99111253A
Authority
RU
Russia
Prior art keywords
working
valves
pressure
hydraulic
piston
Prior art date
Application number
RU99111253/06A
Other languages
Russian (ru)
Other versions
RU2216652C2 (en
Inventor
Гюнтер АЙС
Original Assignee
КЛААС Зельбстфаренде Эрнтемашинен ГмбХ
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 DE19823347A external-priority patent/DE19823347A1/en
Application filed by КЛААС Зельбстфаренде Эрнтемашинен ГмбХ filed Critical КЛААС Зельбстфаренде Эрнтемашинен ГмбХ
Publication of RU99111253A publication Critical patent/RU99111253A/en
Application granted granted Critical
Publication of RU2216652C2 publication Critical patent/RU2216652C2/en

Links

Claims (3)

1. Устройство для управления и регулировки гидравлических рабочих цилиндров переднего рабочего оборудования и узлов в рабочих машинах, предпочтительно в самоходных уборочных машинах, в котором поршневые напорные полости посредством золотниковых клапанов подсоединены к центральной гидравлической системе рабочего агрегата и посредством встроенного отключающего клапана подсоединены в параллельное подключение с заряжаемым гидроаккумулятором, причем золотниковые клапаны и отключающий клапан выполнены с возможностью управления от системы управления, связанной с задатчиком заданной величины, и предусмотрены средства, которые при изменениях давления, представляющих перегрузку или падение предварительно заданной величины рабочего давления, автоматически осуществляют гидравлическое сообщение с напорной или сливной линиями гидравлической системы, отличающееся тем, что рабочие цилиндры (6, 11, 23) выполнены в виде рабочих цилиндров двухстороннего действия с односторонним поршневым штоком, штоковые напорные полости которых посредством переключающих клапанов избирательно связаны с поршневыми напорными полостями, с гидроаккумуляторами или со сливной линией центральной гидравлической системы и через золотниковые клапаны соединены с центральной гидравлической системой, а рабочий цилиндр (11) оснащен чувствительным элементом датчика хода, который соединен с электронной системой управления уборочной машины и предназначен для контроля и восприятия положения рабочего поршня.1. A device for controlling and adjusting the hydraulic working cylinders of the front working equipment and units in working machines, preferably in self-propelled harvesting machines, in which piston pressure cavities are connected to the central hydraulic system of the working unit by means of slide valves and are connected in parallel with rechargeable accumulator, moreover, the spool valves and the shut-off valve are made with the possibility of control from control topics associated with a setpoint setpoint controller, and means are provided that, when changes in pressure representing an overload or drop in a predetermined working pressure value, automatically carry out hydraulic communication with pressure or drain lines of the hydraulic system, characterized in that the working cylinders (6, 11 , 23) are made in the form of double-acting working cylinders with a single-sided piston rod, the rod pressure cavities of which are selected by means of switching valves but they are connected with piston pressure cavities, with hydraulic accumulators or with a drain line of the central hydraulic system and through spool valves are connected to the central hydraulic system, and the working cylinder (11) is equipped with a sensing element of the stroke sensor, which is connected to the electronic control system of the sweeper and is intended for monitoring and perception of the position of the working piston. 2. Устройство по п.1, отличающееся тем, что штоковые напорные полости рабочих цилиндров напрямую связаны параллельным соединением с дополнительными гидроаккумуляторами (41, 42), через промежуточные золотниковые клапаны (38; 39) соединены с центральной гидравлической системой уборочной машины, а через золотниковые клапаны (36; 37) соединены с поршневыми напорными полостями и с гидроаккумуляторами (34, 35). 2. The device according to claim 1, characterized in that the rod pressure cavities of the working cylinders are directly connected in parallel with additional hydraulic accumulators (41, 42), through intermediate spool valves (38; 39) are connected to the central hydraulic system of the sweeper, and through spool valves valves (36; 37) are connected with piston pressure cavities and with hydraulic accumulators (34, 35). 3. Устройство по п.1, отличающееся тем, что исполнительные элементы золотниковых клапанов, отключающего клапана и переключающих клапанов соединены с электронной системой управления уборочной машины, а ко входу электронной системы управления подсоединено устройство предварительного выбора (преселектор) для установки заданной величины рабочего давления в напорных полостях рабочих цилиндров. 3. The device according to claim 1, characterized in that the actuating elements of the spool valves, the shut-off valve and the switching valves are connected to the electronic control system of the harvester, and a pre-selection device (preselector) is connected to the input of the electronic control system to set the specified value of the working pressure in pressure cavities of working cylinders.
RU99111253/06A 1998-05-13 1999-05-12 Working cylinder control and regulation device RU2216652C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823347.7 1998-05-13
DE19823347A DE19823347A1 (en) 1998-05-13 1998-05-13 Device for the control and adjustment of working cylinders

Publications (2)

Publication Number Publication Date
RU99111253A true RU99111253A (en) 2001-03-20
RU2216652C2 RU2216652C2 (en) 2003-11-20

Family

ID=7868875

Family Applications (1)

Application Number Title Priority Date Filing Date
RU99111253/06A RU2216652C2 (en) 1998-05-13 1999-05-12 Working cylinder control and regulation device

Country Status (7)

Country Link
US (1) US6151874A (en)
EP (1) EP0958730B1 (en)
BR (1) BR9900359A (en)
DE (2) DE19823347A1 (en)
DK (1) DK0958730T3 (en)
RU (1) RU2216652C2 (en)
UA (1) UA57756C2 (en)

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