Hydraulic machine with improved oscillating axial cylinders
A technology for swinging a shaft and a cylinder is applied in the field of hydraulic machines with an improved swinging axial cylinder, which can solve problems such as damage to the sealing ability of gaskets
Inactive Publication Date: 2017-10-20
MONEY
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Problems solved by technology
[0006] As mentioned above, in order to solve said disadvantages, an assembly solution of a piston ball coupling as described in document WO 2013 / 143860 has been proposed, by housing a gasket on the spherical surface of the piston in a circumferential hollow body, located In a plane perpendicular to the rod, in this way the thrust of the hydraulic fluid is precisely aligned with the rod, but due to the different curves that the circumferential hollow body has in relation to the inner cylindrical surface of the cylinder facing it, the gasket's The sealing ability is compromised, that is, the adjustment of these different curves for achieving sealing in the ball joint of the piston remains unresolved
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Embodiment Construction
[0055] The hydraulic machine according to the first embodiment of the present invention such as figure 1 Visible here is manufactured as a hydraulic motor 1 equipped with a set 2 of oscillating axial cylinders 3 which are arranged to rotate synchronously on a shaft 4 which is on the side of the distributor cover 6 There is an end 5 and an end 7 on the side of the cover 8 with a control device 9 for controlling the variation of the displacement. Group 2 comprises: a swivel flange 10 keyed and rotated with the shaft 4, which supports a plurality of eyelet pins 11 connected to ball joints 12 housed in the bottom 13 of the oscillating cylinder 3; A hydraulic sealing sleeve 14 is connected in a stable manner to this bottom so as to constitute the lining of the oscillating cylinder; the rotating flange 10 constitutes the first rotating element. Inside the sleeve 14, the axial piston 15 performs a reciprocating stroke following a change in the spatial orientation of the correspondin...
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A hydraulic machine (137) with oscillating axial cylinders comprises: a plurality of oscillating axial cylinders (138), put in synchronous rotation between a first rotating element, a rotating disc (147), which supports one end of the cylinder, bottom or piston, and a second rotating element, a rotating barrel (44), which supports the opposite end of the cylinder; each cylinder is connected to said rotating elements with a ball joint towards each of them; each ball joint is holed to allow for the passage and the feeding / discharge through it of the hydraulic liquid; characterised in that it has at least the bottom or the piston connected to the respective rotating element with a ball joint (141, 146) having a spherical surface with a diameter equal to or greater than the cylinder bore. Here described are various embodiments of an oscillating axial cylinder, as well as pumps or motors made up of one or two groups of oscillating axial cylinders.
Description
field of invention [0001] The present invention relates to a hydraulic machine with a plurality of oscillating axial cylinders, that is to say a hydraulic machine with known open or closed circuit hydrostatic transmission as a pump to generate pressurized hydraulic fluid, or as a motor to pressurize A machine in which hydraulic fluid is converted into mechanical rotary drive motion, and in which a freely oscillating axial hydraulic cylinder is improved, making the operation of the machine more reliable and enabling the realization of machines of new dimensions, and the efficiency of hydraulic machines And significant improvements in persistence. Background technique [0002] The prior art includes many different types of hydraulic machines, pumps and motors with axial arrangements of these cylinders gathered in a rotating cylinder, at an angle with respect to the axis of rotation, in such a way that the pistons in the cylinders Move and achieve displacement of the machine. ...
Claims
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IPC IPC(8): F04B1/20F04B1/24F04B1/32F03C1/06F03C1/32F03C1/40
CPCF03C1/0644F03C1/0652F03C1/0673F03C1/0686F04B1/2014F04B1/2035F04B1/24F04B1/328F03C1/0639F04B1/2092F04B1/22
Inventor F·佩科拉利
Owner MONEY