SU992854A1

SU992854A1 - Hydraulic cylinder

Info

Publication number: SU992854A1
Application number: SU802918186A
Authority: SU
Inventors: Сергей Алексеевич Костарев; Юрий Александрович Гаврилов; Валентин Григорьевич Клинцов
Original assignee: Волжский Автомобильный Завод По Производству Легковых Автомобилей
Priority date: 1980-04-30
Filing date: 1980-04-30
Publication date: 1983-01-30

Description

Изобретение относитс к машиностроению , может найти применение в устройствах с регулируемой длиной хода, например, в суппортах металлорежущих станков, а также в других област х народного хоз йства.The invention relates to mechanical engineering, can be used in devices with adjustable stroke length, for example, in machine tool calipers, as well as in other areas of the national economy.

Известен гидроцилиндр, содержащий корпус с крышкой, полые поршень со штоком, установленные в корпусе с образованием поршневой и штоковой полостей и снабженные ограничительным кольцом, закрепленные в крышке и размещенные в полости штока стакан и устройство дл регулировани хода, выполненное в виде резьбового стержн и гайки с выступами, взаимодействук цей со стаканом без возможности проворота tlD.A hydraulic cylinder is known, comprising a housing with a lid, a hollow piston with a rod, mounted in the housing to form piston and rod cavities and provided with a restrictor ring, mounted in the lid and placed in the stem cavity of the cup and a device for controlling the stroke, made in the form of a threaded rod and nut protrusions, interaction with the glass without the possibility of twisting tlD.

Недостаток известного устройства - невозможность получени более двух точных положений штока.A disadvantage of the known device is the impossibility of obtaining more than two exact rod positions.

Цель изобретени - расширение функциональных возможностей гидроцилиндра путем избирательного ограничени осевого перемещени штока.The purpose of the invention is to expand the functionality of the hydraulic cylinder by selectively limiting the axial movement of the rod.

Указанна цель достигаетс тем, что стакан установлен с возможностью поворота относительно оси цилиндра и снабжен приводным механизмом,размещенным в крышке, а ограничительноеThis goal is achieved by the fact that the glass is installed with the possibility of rotation relative to the axis of the cylinder and is equipped with a drive mechanism located in the lid, and a restrictive

кольцо выполнено с прорез ми, ответными -выступам гайки.the ring is made with slots, the counter-protrusions of the nut.

При этом приводной механизм выполнен в виде зубчато-реечной передачи.When this drive mechanism is made in the form of a rack-and-pinion gear.

На фиг. 1 изображен гидроцилиндр, общий вид; на фиг. 2 - разрез по приводному механизму; на фиг. 3 приводной механизм, положение закрыто; на фиг. 4 - приводной механизм, FIG. 1 shows a hydraulic cylinder, a general view; in fig. 2 - a section on the driving mechanism; in fig. 3 drive mechanism, the position is closed; in fig. 4 - drive mechanism

10 положение открыто; на фиг. 5 - гидроцилиндр , крайнее левое положение; на фиг. 6 - то же, крайнее правое положение; на фиг. 7 - то же, промежуточное положение при ходе вперед; 10 position open; in fig. 5 - hydraulic cylinder, leftmost position; in fig. 6 - the same, the extreme right position; in fig. 7 - the same, intermediate position at the course forward;

15 на фиг. 8 - то же, промежуточное положение при ходе назад.15 in FIG. 8 - the same, intermediate position at the back.

Claims

The hydraulic cylinder consists of a housing 1 with a lid 2. The housing 1 is installed with the formation of piston and rod cavities 3 and 4, respectively, a hollow piston 5 with a rod 6 and a limiting ring 7. The lid 2 houses a glass 8 with slots 9, gear 25 25 and a rail with the plunger 11, as well as the threaded rod 12 with the nut 13, the shank 14 of which is made with the slots 15. The restrictive ring 7 is made with slots 16, the answer 30 and the protrusions 17 of the nut 13. The hydraulic cylinder works as follows. When the working fluid is supplied to the cavity 3, the piston 5 with the rod b is moved to the extreme right position. The drive mechanism is in the open position, which makes it possible to use the entire length of the cylinder. If the drive mechanism is turned to the closed position, the protrusions 17 of the nut 13 are supported against the limiting ring 7 - the piston 5 with the rod b is fixed in the intermediate position. When the working fluid is supplied to the cavity 4, depending on the position of the drive mechanism, both the full stroke of the piston 5 and its stop in the intermediate position can also be obtained. To change the stroke of the intermediate position, it is necessary to rotate the E-shank rod 12. At the same time, the nut 13, fixed from rotation with the help of the splines 9 and 15, moves as it moves or moves away from the cover 2, thereby changing the position of the intermediate stop. Thus, the application of the proposed cylinder makes it possible to obtain a piston stopping at an intermediate stop not only when moving forward, but also when moving backward, i.e. allows to obtain four fixed piston positions, two of which can be adjusted. Claim 1. Hydraulic cylinder, comprising a housing with a lid, hollow piston with a rod, installed in the housing with the formation of piston and rod cavities and provided with a restrictive ring, fixed in the lid and placed in the stem cavity of the cup and a device for controlling the stroke, made in the form of a threaded rod and nuts with protrusions, interacting with the glass without the possibility of rotation, characterized in that, in order to expand the functionality of the cylinder by selectively limiting the axial shift escheni rod, a glass pivotally mounted relative to the cylinder axis and provided with a drive mechanism placed in the cover, and a limiting ring is slotted, mating protrusions nut.

2. A hydraulic cylinder according to claim 1, characterized in that the drive mechanism is designed as a rack-and-pinion gear transmission. Sources of information taken into account in the examination 1. USSR author's certificate 309163, cl. F 15 B 15/24, 1971.

Fig.1

5-6

17

/ Z

3

FIG..CH