JPS6221121Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This proposal relates to the improvement of oil tanks used in hydraulic equipment such as hydraulic power sources for testing, rolling equipment, continuous casting equipment, hydraulic equipment for construction equipment, etc. be.

(Prior art) Conventionally, in order to remove iron powder mixed into the return oil of this type of oil tank, a magnetic filter made of a piece of permanent magnet was detachably attached and the iron powder was adsorbed. It is being done.

(Problems to be solved by the invention) However, since the conventional device does not restrict the flow path of the return oil from the oil tank and remove foreign matter by storing it in a predetermined location, it has little iron powder removal effect and has a magnetic property. It is impossible to remove foreign substances other than metals.

(Means for Solving the Problems) The present invention relates to an oil tank proposed to solve these problems, in which return oil is directed downward to the tip of a return pipe inserted into the oil tank body. A rectifying plate with fins configured to generate a directional planar diffusion flow is installed, and an oil reservoir communicating with the inside of the tank body is installed on the lower surface of the bottom plate of the tank body at the bottom of the rectifying plate. The above-mentioned problem is solved by attaching an opening/closing lid piece to the communicating portion to the oil reservoir.

(Function) As described above, in the oil tank according to the present invention, a finned rectifying plate is attached to the tip of the return pipe inserted into the oil tank body, and an oil reservoir is attached and detached from the lower surface of the bottom plate of the tank body at the bottom of the rectifying plate with fins. Since it is installed freely, the oil returned to the oil tank body from the return pipe is guided by the finned rectifier plate installed at the tip of the return pipe, and is directed downward and spread in a flat plane. As a result, the foreign matter contained in the oil is efficiently deposited in an oil reservoir installed below the flow regulating plate on the lower surface of the bottom plate of the tank body so as to communicate with the inside of the tank body.

Therefore, when the amount of foreign matter deposited in the oil sump increases, the communication part of the bottom plate to the oil sump is sealed with an opening/closing door and the contents of the oil sump are taken out, thereby removing the oil in the tank. It is capable of separating oil containing the foreign substances.

(Effects of the invention) According to the present invention, foreign substances contained in the oil in the oil tank can be easily removed, the oil in the oil tank can always be kept clean, and troubles in the hydraulic system can be reduced. and improve its reliability.
This could extend the useful life of the device.

(Example) The present invention will be described below with reference to the illustrated embodiments.

[Configuration of Example]

1 is supported on a support leg 2 and stores hydraulic oil a.
The oil tank body attached to the hydraulic system, 3 is a suction pipe with a suction filter 4 attached to its tip and connected to a hydraulic pump (not shown), 5 is a return pipe, 6 is an air breather, and 7 is the bottom plate of the tank body. be.

At the lower end of the return pipe 5, the upper end of a rectifying plate 9, which has fins 8 arranged radially on a fan-shaped plate extending slightly diagonally downward, is attached via a mounting bracket 10.

Below the rectifying plate 9, an oil reservoir 11 is screwed onto the lower surface of the bottom plate 7 so as to communicate with the inside of the tank body 1 through an opening provided in the bottom plate 7.

A rectangular frame-shaped gasket 12 is disposed on the bottom plate 7, a portion of which is configured to surround the opening, and a slide plate 13 inside the gasket 12 opens and closes the opening. Watertight and slidably mounted. In the figure, 14 is the packing 12.
The seal lip 15 is a screw hole for attaching the packing 12 to the bottom plate 7. Further, a handle 16 for opening and closing operation is protruded from the lower surface of the slide plate 13, and the handle 16 is attached to a guide groove hole 1 formed in the bottom plate 7.
7 is designed to slide.

[Effect of the embodiment]

Therefore, the oil a in the oil tank body 1 passes through the suction filter 4 and flows from the suction pipe 3 to the hydraulic pump, and is supplied to the required locations, and the oil that has fulfilled its function is returned to the hydraulic tank body 1 from the return pipe 5. Then, due to the action of the baffle plate 9 and the fins 8, it becomes a planar diffusion flow directed downward and flows down.

In addition to normal dust, oil a contains a mixture of abrasion powder from hydraulic equipment generated during function, chips, debris, etc., and fragments of various sealing materials in extreme cases. While flowing, it settles in the oil sump 11.

When the amount of foreign matter deposited in the oil reservoir 11 increases, the slide plate 13 of the seal lip 14 of the packing 12 is moved by holding the handle 16 in the direction of the arrow in FIG. The opening of the oil reservoir 11 to the oil tank body 1 is sealed watertight by a sealing action against the oil tank body 1,
Oil a in a tank body 1 and oil a' containing foreign matter in an oil reservoir 11 are separated. After that, tank bottom plate 7
By loosening the mounting screws (not shown) between the oil reservoir 11 and the oil reservoir 11, only the heavily contaminated oil a' containing foreign matter can be removed.

[Effects of Examples]

Thus, according to the oil tank shown in the above embodiment,
This makes it easier to remove foreign matter from oil storage, reduces troubles in the hydraulic system, improves its reliability, and extends its service life.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of the oil tank according to the present invention, FIG. 2 is a bottom view with a part of the bottom plate thereof cut away, and FIG. 3 is a view taken in the direction of the arrow in FIG. 1. FIG. 4 is a view taken in the direction of the arrows in FIG. 1... Oil tank body, 5... Return pipe, 8... Fin, 9... Current plate, 11... Oil sump, 13...
sliding board.

Claims (1)

[Scope of utility model registration request] At the tip of the return pipe inserted into the oil tank body,
A rectifying plate with fins configured to generate a planar diffusion flow that directs the return oil downward is installed, and an oil reservoir communicating with the inside of the tank is installed on the lower surface of the bottom plate of the tank body at the bottom of the rectifying plate. The oil tank is further characterized in that an opening/closing lid piece is attached to a communicating portion of the bottom plate to the oil reservoir.