SU1603048A1

SU1603048A1 - Axial-piston hydraulic machine

Info

Publication number: SU1603048A1
Application number: SU884624912A
Authority: SU
Inventors: Александр Николаевич Густомясов; Павел Юрьевич Балашов; Дмитрий Алексеевич Шулятьев
Original assignee: Мгту Им.Н.Э.Баумана
Priority date: 1988-12-23
Filing date: 1988-12-23
Publication date: 1990-10-30

Abstract

Изобретение относитс к объемным гидромашинам и может быть использовано в объемных гидропередачах. Целью изобретени вл етс повышение объемного КПД путем улучшени подпитки линий высокого и низкого давлени . Дл этого в гидромашине заборные камеры насоса подпитки выполнены в виде пазов на блоке цилиндров с установленными в них пластинами 11 и пружинами 12 и части внутренней поверхности корпуса, выполненной профилированной и ограниченной по торцам блоком цилиндров. Профилированна поверхность корпуса снабжена окном 14 высокого и окном низкого давлени . Окно 14 соединено через обратные клапаны 15 и 16 с лини ми высокого и низкого давлени гидромашины. 1 з.п. ф-лы, 3 ил.The invention relates to volumetric hydraulic machines and can be used in volumetric hydraulic transmissions. The aim of the invention is to increase the volumetric efficiency by improving the feeding of high and low pressure lines. To do this, in the hydraulic machine, the intake chambers of the feed pump are made in the form of grooves on the cylinder block with the plates 11 installed in them and the springs 12 and part of the inner surface of the housing, which is made up of a cylinder block shaped and limited at the ends. The profiled surface of the housing is provided with a high window 14 and a low pressure window. Window 14 is connected via check valves 15 and 16 to the high and low pressure lines of the hydraulic machine. 1 hp f-ly, 3 ill.

Description

Фиг . 2FIG. 2

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Изобретение относитс к объемным гидромашинам и может быть использовано в объемных гидропередачах.The invention relates to volumetric hydraulic machines and can be used in volumetric hydraulic transmissions.

Цель изобретени - повышение объемного КПД путем улучшени подпитки линий высокого и низкого давлений.The purpose of the invention is to increase the volumetric efficiency by improving the feeding of high and low pressure lines.

На фиг. 1 представлена схема аксиально-поршневой , машины; на фиг. 2 - сечение А-А на фиг. 1; на фиг. 3 - сечение гидромашины , у которой насос подпитки выполнен с двум рабочими камерами.FIG. 1 shows an axial piston machine; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section of a hydraulic machine in which the feed pump is made with two working chambers.

Аксиально-поршнева гидромашина содержит корпус 1 с лини ми низкого 2 и высокого 3 давлени , установленный на опорах 4 и 5 вал 6, привод ш,ий во вращение блок цилиндров 7, контактирующий с рас- g пределителем 8, св занным с лини ми высокого и низкого давлени .The axial-piston hydraulic machine comprises a housing 1 with low 2 and high 3 pressure lines, mounted on supports 4 and 5, shaft 6, driven w, a block of cylinders 7 in rotation, in contact with a distributor 8 connected to high lines and low pressure.

В блоке цилийдров 7 размещены поршни 9, взаимодейсфвующие с неподвижной наклонной шайбой 10. Гидромашина имеет также насос подпитки, заборные камеры которого выполнены в виде пазов (не обозначены) на блоке цилиндров, с установленными в них пластинами 11 и пружинами 12, и части 13 внутренней поверхности корпуса, выполненной профильной и ограниченной поIn the block of cylinders 7, pistons 9 are placed, interacting with a fixed inclined washer 10. The hydraulic machine also has a feed pump, the intake chambers of which are made in the form of grooves (not indicated) on the cylinder block, with plates 11 and springs 12 installed in them, and inner parts 13 surface of the body, made of profile and limited to

гидромашины в объемном приводе с замкнутым контуром с системе из-за подпитки утечек уменьшаетс количество рабочей жидкости. Дл ее пополнени служит насос подпитки подающей жидкости через клапаныhydraulic machines in a closed-loop volumetric drive with a system, due to the make-up of leaks, the amount of working fluid decreases. To replenish it, a feed pump is fed through the valves.

5 15 и 16 в линии 3 высокого и 2 низкого давлени . Пластины 11 скольз т по профилированной поверхности корпуса, при этом заборные камеры заполн ютс жидкостью, вытекаемой в окно 14 высокого давлени по5 15 and 16 in line 3 high and 2 low pressure. The plates 11 slide along the profiled surface of the casing, while the intake chambers are filled with liquid flowing out of the high pressure port 14 along

10 варианту на фиг. 2, или вытекает в окне 20 и 21 по варианту на фиг. 3, тем самым компенсиру потери жидкости в системе.10 to the embodiment of FIG. 2, or flows out in window 20 and 21 of the embodiment of FIG. 3, thereby compensating for fluid loss in the system.

Claims

1. An axial piston hydraulic machine comprising a housing, a shaft mounted on supports, a cylinder block with pistons supported on an inclined washer, a distributor associated with high and low pressure lines, and a feed pump comprising suction chambers, made on the cylinder block, the working cavity of which is formed by the cylinder block and the inner surface of the housing, characterized in that, in order to increase the volumetric

DUlilV / tft nVrllllVyXJ 11 IVl Jl Il "lV i | - t l lx" - M C

the ends of the cylinder block. Profile by efficiency, by improving the feed line, the top of the body is equipped with a high window 14 and a low pressure window (not indicated). High pressure window 14 is connected via check valves 15 and 16 to high and low pressure lines. In the embodiment of the hydraulic machine in FIG. 2, the make-up pump contains one working cavity 17. In FIG. 3, the make-up pump contains two working cavities 18 and 19, and the profiled surface of the casing consists of two pairs of low windows (not indicated) and high pressure windows 20 and 21, which are connected through check valves 22 and 23 to the high and low pressure hydraulic machine lines.

The device works as follows.

low and low pressure, additional check valves are added to it, and the intake chambers of the make-up pump are made in the form of grooves in which spring-loaded plates are installed, and parts of the inner surface of the housing, made of profiled, limited at the ends by the cylinder block, and the profiled surface of the housing is provided with a low window and a high pressure window connected through check valves to the high and low pressure lines of the hydraulic machine.

2. The hydraulic machine according to claim 1, characterized in that the profiled surface of the housing is made with the formation of an additional working cavity of the feed pump.

35

During rotation, shaft 6, pistons 9 interconnected with a high and low pressure window with an inclined washer 10, transfer, with high pressure windows connecting the liquid as in a normal axial-dinene through non-return valves with piston pump lines . In the case of high and low pressure.

hydraulic machines in a closed-loop volumetric drive with a system, due to the make-up of leaks, the amount of working fluid decreases. To replenish it, a feed pump is fed through the valves.

15 and 16 in line 3 high and 2 low pressure. The plates 11 slide along the profiled surface of the casing, while the intake chambers are filled with liquid flowing out of the high pressure port 14 along

the embodiment of FIG. 2, or flows out in window 20 and 21 of the embodiment of FIG. 3, thereby compensating for fluid loss in the system.

Invention Formula

1. An axial piston hydraulic machine comprising a housing, a shaft mounted on supports, a cylinder block with pistons supported on an inclined washer, a distributor connected to high and low pressure lines, and a feed pump comprising intake chambers on the cylinder block, the working cavity of which is formed by the cylinder block and the inner surface of the housing, characterized in that, in order to increase the volumetric

Efficiency by improving the high and low pressure feed, additional check valves are added to it, and the feed chambers of the pump are made in the form of grooves in which spring-loaded plates are installed, and parts of the inner surface of the housing, made of profiled, bounded at the ends of the cylinder block, the surface of the housing is provided with a low pressure window and a high pressure window connected through check valves to the high and low pressure lines of the hydraulic machine.

2. The hydraulic machine according to claim 1, characterized in that the shaped surface of the housing is made with the formation of an additional working cavity of the feed pump.

five

FIG. one

Fig.Z