KR20160051233A

KR20160051233A - Oil skimmner of a machine tool

Info

Publication number: KR20160051233A
Application number: KR1020140150826A
Authority: KR
Inventors: 박원석
Original assignee: 두산인프라코어 주식회사
Priority date: 2014-11-03
Filing date: 2014-11-03
Publication date: 2016-05-11

Abstract

An oil skimmer of a machine tool comprises: a first suction pipe, a second suction pipe, a compressed air supply unit, a first tank, and a second tank. The first suction pipe has a lower end connected to an oil passage of a machine tool. The second suction pipe is connected to an upper end of the first suction pipe. The compressed air supply unit supplies compressed air to the second suction pipe to suck air in the oil passage into the second suction pipe through the first suction pipe. The first tank is connected to the second suction pipe to collect high specific gravity oil in the oil sucked into the second suction pipe. The second tank is connected to the first tank to collect low specific gravity oil in the oil. Therefore, since oil is sucked into a Venturi tube through the suction pipes by supplying compressed air to the Venturi tube, the oil skimmer can have a simple structure.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an oil skimmer for a machine tool,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an oil skimmer of a machine tool, and more particularly, to an oil skimmer that filters oil used in a machine tool.

Generally, a machine tool can process a material by using cutting oil, lubricating oil, cooling water, and the like. Coolant, lubricant, cooling water, etc. can be classified using oil skimmers.

According to the related art, the oil skimmer may have a structure for filtering the oil using a motor-driven belt. The motor drive system can complicate the structure of the oil skimmer. In addition, since the oil is moved on the belt, there is a disadvantage that the filtration speed is slow.

The present invention provides an oil skimmer of a machine tool having a simple structure and a high filtration speed.

The oil skimmer of the machine tool according to one aspect of the present invention may include a first suction pipe, a first suction pipe, a compressed air supply, a first tank and a second tank. The first suction pipe may have a lower end connected to the oil passage of the machine tool. The second suction pipe may be connected to the upper end of the first suction pipe. The compressed air supply section may supply compressed air to the second suction pipe to suck the oil in the oil passage through the first suction pipe to the second suction pipe. The first tank is connected to the second suction pipe, and the oil having a high specific gravity can be collected in the oil sucked into the second suction pipe. The second tank is connected to the first tank so that oil having a low specific gravity can be collected.

In exemplary embodiments, the second suction pipe may include a venturi tube having at least one orifice portion.

In exemplary embodiments, the top of the first suction pipe may be connected to the orifice portion.

In exemplary embodiments, the second suction pipe may be arranged horizontally.

In exemplary embodiments, the second tank may be disposed below the first tank.

In exemplary embodiments, the oil skimmer may further include a connection pipe disposed obliquely between the first tank and the second tank, through which the low specific gravity oil flows.

The oil skimmer of the machine tool according to another aspect of the present invention may include a suction pipe, a venturi pipe, a compressed air supply, a first tank, a connecting pipe and a second tank. The suction pipe may have a lower end connected to the oil passage of the machine tool, and a vertically extending upper end from the lower end. The venturi tube is connected to the upper end of the suction pipe and may have at least one orifice portion. The compressed air supply section may supply compressed air to the venturi pipe to suck the oil in the oil passage through the suction pipe to the venturi pipe. The first tank is connected to the venturi tube so that the heavy oil in the oil sucked into the venturi tube can be collected. The connection pipe extends obliquely downward from the first tank so that oil having a low specific gravity can flow through the connection pipe. The second tank is connected to the connection pipe so that the low specific gravity oil can be collected.

In exemplary embodiments, the top of the first suction pipe may be connected to the orifice portion of the venturi tube.

According to the present invention described above, the compressed air is supplied to the venturi pipe, so that the oil can be sucked into the venturi pipe through the suction pipe. Therefore, the oil skimmer can have a simple structure by excluding the use of the motor. Further, since the oil is sucked by the pressure difference, the oil skimmer can have a fast oil filtration speed.

1 is a perspective view showing an oil skimmer of a machine tool according to an embodiment of the present invention.
2 is a cross-sectional view of the oil skimmer of Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

FIG. 1 is a perspective view showing an oil skimmer of a machine tool according to an embodiment of the present invention, and FIG. 2 is a sectional view showing the oil skimmer of FIG.

1 and 2, the oil skimmer 100 of the machine tool according to the present embodiment includes a first suction pipe 110, a second suction pipe 120, a compressed air supply unit 130, a first tank 140, A connection pipe 150, and a second tank 160. As shown in FIG.

In the present embodiment, the machine tool may include a lathe, a milling machine, a boring machine, a drilling machine, and the like. However, the types of machine tools to which the oil skimmer 100 of the present embodiment is applied are not limited to the types described above. The machine tool may have an oil passage (P) through which cutting oil, lubricating oil, cooling water, etc. flow.

The first suction pipe 110 may be vertically disposed on the upper portion of the oil passage P. [ The first suction pipe 110 may have a lower end and an upper end. The lower end of the first suction pipe 110 may be disposed in the oil passage P. [ In particular, the lower end of the first suction pipe 110 may be immersed in the oil in the oil passage P. [

The second suction pipe 120 may be disposed along a horizontal direction that is parallel to the oil passage P. [ Both ends of the second suction pipe 120 can be opened. The lower left end of the second suction pipe 120 may have a vertically curved shape. The second suction pipe 120 may be connected to the upper end of the first suction pipe 110. In this embodiment, the second suction pipe 120 may include a venturi tube having one orifice portion 122. The upper end of the first suction pipe 110 may be connected to the orifice portion 122 of the venturi pipe 120.

The compressed air supply 130 may be connected to the right end of the second suction pipe 120. The compressed air supply unit 130 may supply the compressed air into the second suction pipe 120 toward the left end of the second suction pipe 120. When the compressed air is supplied into the second suction pipe 120, the pressure in the orifice portion 122 of the second suction pipe 120 may be lower than the oil passage P. Accordingly, the oil in the oil passage P can be sucked into the second suction pipe 120 through the first suction pipe 110. [ The suction amount of the oil can be appropriately set by adjusting the speed of the compressed air and / or adjusting the diameters of the first suction pipe 110 and the second suction pipe 120.

The first tank 140 may be connected to the lower left end of the second suction pipe 120. The oil in the oil passage P can be collected in the first tank 140 via the first suction pipe 110 and the second suction pipe 120. [ The oil having a high specific gravity in the oil, for example, cutting oil, cooling water, etc., may be located in the lower portion of the first tank 140. On the other hand, the low specific gravity oil may be located in the upper portion of the first tank 140. Due to the difference in specific gravity of the oil, the oil can be classified in the first tank 140.

The connection pipe 150 may extend obliquely downward from the upper end of the first tank 140. Therefore, oil having a low specific gravity can flow from the first tank 140 to the connection pipe 150. On the other hand, the oil having a high specific gravity can stay in the first tank 140 continuously.

The second tank 160 may be disposed at the lower end of the connection pipe 150. Accordingly, the second tank 160 can be positioned below the first tank 140. Only oil having a low specific gravity flowing along the connection pipe 150 can be collected in the second tank 160.

According to this embodiment, by supplying the compressed air to the second suction pipe, the oil can be sucked into the second suction pipe through one first suction pipe. Therefore, the oil skimmer can have a simple structure by excluding the use of the motor. Further, since the oil is sucked by the pressure difference, the oil skimmer can have a fast oil filtration speed.

As described above, according to the present embodiment, the compressed air is supplied to the venturi pipe, so that the oil can be sucked into the venturi pipe through the suction pipe. Therefore, the oil skimmer can have a simple structure by excluding the use of the motor. Further, since the oil is sucked by the pressure difference, the oil skimmer can have a fast oil filtration speed.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. And changes may be made without departing from the spirit and scope of the invention.

110; A first suction pipe 120; The second suction pipe
122; Orifice portion 130; Compressed air supply portion
140; A first tank 150; Connector
160; The second tank

Claims

A first suction pipe having a lower end connected to the oil passage of the machine tool;
A second suction pipe connected to an upper end of the first suction pipe;
A compressed air supply unit for supplying compressed air to the second suction pipe to suck the oil in the oil passage through the first suction pipe to the second suction pipe;
A first tank connected to the second suction pipe to collect oil having a high specific gravity among the oil sucked into the second suction pipe; And
And a second tank connected to the first tank for collecting oil having low specific gravity in the oil.

The oil skimmer of a machine tool according to claim 1, wherein the second suction pipe comprises a venturi tube having at least one orifice portion.

The oil skimmer of a machine tool according to claim 2, wherein an upper end of the first suction pipe is connected to the orifice part.

The oil skimmer of claim 1, wherein the second suction pipe is horizontally disposed.

The oil skimmer of a machine tool according to claim 1, wherein the second tank is disposed below the first tank.

The oil skimmer of a machine tool according to claim 5, further comprising a connection pipe sloped between the first tank and the second tank, through which the low specific gravity oil flows.