JPS6039918B2 - Refueling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an oil supply device that can supply oil to an oil supply position of a rotating shaft system without causing pressure loss in oil flow.

(Prior Art) A conventional oil supply device of this type usually has a configuration as shown in FIG.

That is, in the figure, 1 is a rotating shaft supported by bearings 2, 2, 3 is a supply pump for supplying oil flow at a predetermined pressure to this rotating shaft system, 4 is a driving electric motor thereof, and 5 is an oil pump. This shows the storage tank. The oil flow from the hydraulic pump 3 is sent from an oil passage 6 bored in the bearing 2 to an oil passage 7 in the rotating shaft 1 to a hydraulic device 8, for example, for operating a turbine blade, provided on the rotating shaft 1. It's starting to become easier. (Problems to be Solved by the Invention) As described above, in the conventional oil supply device, since the turbid flow passes through the bearing portion in its path, a pressure drop occurs at the bearing surface 9,
There is a drawback that a high-pressure oil flow cannot be fed to the hydraulic equipment 8 or other lubricating surfaces attached to the rotating shaft 1.

This invention was made in order to eliminate the above-mentioned drawbacks, and an object of the present invention is to provide an oil supply device that can directly feed an oil flow introduced through a fixed side to a desired position of a rotating shaft system without causing pressure loss. The purpose is to

(Means for Solving the Problems) The oil supply device according to the present invention includes a casing provided on a part of a rotating shaft, and an inner wall surface of the casing that cooperates to divide the inside of the casing into a suction chamber and a discharge chamber. A hydraulic pump is formed by the fixed side member, and the hydraulic pump is operated by the rotation of the rotating shaft itself, and the oil flow introduced through the fixed side can be fed to a desired position of the straight saddle rotating shaft system. This is how it was done.

(Function) In this invention, oil is introduced from the stationary side of the hydraulic pump that is operated by the rotation of the rotating shaft itself, and the oil is sent directly from the rotating side supported by the rotating shaft to the lubricated part within the rotating shaft. Therefore, the occurrence of oil flow pressure loss can be prevented.

(Embodiment) The present invention will be described below with reference to the embodiment shown in FIGS. 1 and 2. Reference numeral 10 denotes an oil pump constructed as a gear pump, and the oil pump 10 is mounted on a bank 11 fixed to the surface of a rotary shaft 1. It is assembled as follows.

That is, 12 is a constant side gear provided in alignment with the axial center of the rotating shaft 1, 13 is a side gear rotatably supported on a shaft 14 protruding from the pedestal 11 so as to mesh with this, and 15 is a fixed side gear for both of these gears. A casing that covers the gear and is fixed on the pedestal 11 defines an inlet chamber 16 and an outlet chamber 17, as shown in FIG. Reference numeral 18 denotes a suction pipe leading to the storage tank 5, and the other end fixedly supports the shaft portion 19 of the stationary gear 12 protruding from the casing 15. It communicates with an entrance 22 to the inlet chamber 16 of the casing 15 via an oil passage 20 and an oil passage 21 in the pedestal.

Further, the outlet chamber 17 of the casing 15 communicates with the hydraulic equipment 8 from its opening □23 via the oil passage 24 in the pedestal, while the discharge side oil passage 25 of the hydraulic equipment 8 covers its outlet end. An oil pan ring 26 is provided around the outer periphery of the pedestal 11.
, and is passed through the storage tank 5 via a discharge pipe 27 that supports it. Note that 28 indicates a rotation stopper provided so that the stationary side gear 12 and the suction pipe 18 supporting it do not follow the rotation of the rotating shaft 1. With the above configuration, when the rotating shaft 1 rotates, the fixed side gear 12 having the same axis as the rotating shaft 1 is fixedly supported, so the casing 25 rotates around the fixed side gear 12 together with the base 11, and The driven gear 13 also rotates while revolving around the stationary gear 12. Therefore, the oil in the storage tank 5 is
8, oil in the outlet chamber 17 that is led to the inlet chamber 16 of the casing 15 through the oil passages 20, 21 and the opening 22, and is pressurized by the above-mentioned operation of the oil pump 10.
The oil is directly fed to the hydraulic equipment 8 of the rotary shaft 1 through the oil passage 24 without causing any pressure loss. Further, the return side of this hydraulic equipment 8 includes an oil passage 25, an oil receiver ring 26, and a discharge pipe 2.
7 and is refluxed into the storage tank 5. In the above embodiment, a gear pump is used as the oil pump, but for example, as a vane pump, the casing side of the gear pump is
It can be configured such that it is fixed to the end face of the rotating shaft 1 and the rotor side is attached to the fixed side coaxially with the rotating shaft 1, or it is also possible to configure it as a liquid rotary pump such as a trochoid pump. Furthermore, based on this, it goes without saying that the oil introduction and discharge passages are not limited to those shown in the drawings, but can be modified in various ways. (Effects of the Invention) As described above, according to the present invention, there is a casing that is fixed to the end face of a rotating shaft and rotates integrally with the rotating shaft, and a casing that is disposed coaxially with the rotating shaft on the fixed side and that rotates as the casing rotates. A rotary member having a fixed side member whose outer peripheral surface cooperates with the inner wall surface of the casing to define the inside of the casing into a suction chamber and a discharge chamber, and which pumps oil from the suction chamber to the discharge chamber. The pump passes oil through the central axis of the stationary side member and into the suction chamber via an oil passage provided in the rotating shaft, and supplies oil from the storage tank provided on the stationary side to the suction chamber. The pump is equipped with a suction passage for introducing the oil, and a discharge passage for feeding oil from the discharge chamber through the rotary shaft to the lubricated part that rotates integrally with the rotary shaft. Compared to those installed outside the rotating shaft system, it has the effect of being able to directly supply oil flow at a predetermined pressure to the hydraulic equipment, lubricating surfaces, etc. of the rotating shaft system without causing pressure loss in the parts that pass through the bearing part, etc. be.

Moreover, since no separate power source is required to drive the oil pump and the rotation of the rotating shaft can be used, it can be said to be extremely advantageous from a structural and economical point of view.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a fuel supply device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the Rolo line in FIG. 1, and FIG. 3 is a schematic diagram of a conventional fuel supply device. 1...Rotating shaft, 10...Oil pump, 12.
...Fixed side gear 13 as a fixed side member...
・・Help side gear, 15・・Casing, 18・
...Suction pipe, 27...Discharge pipe. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. A casing that is fixed to an end face of a rotating shaft and rotates integrally with the rotating shaft, and the rotating shaft is coaxially disposed on the fixed side, and as the casing rotates, its outer peripheral surface cooperates with the inner wall surface of the casing. A rotary pump having a fixed side member that divides the inside of the casing into a suction chamber and a discharge chamber and pumps oil from the suction chamber to the discharge chamber; A suction passage that communicates with the suction chamber via a provided oil passage and introduces oil into the suction chamber from a storage tank provided on the fixed side, and a suction passage that communicates with the rotation shaft from the discharge chamber and into the rotation shaft. A lubricating device equipped with a discharge passage that supplies oil to a lubricated part that rotates integrally with the lubricant.