KR200204852Y1 - Inner scale detecting device of rolling mill and reduction gear - Google Patents

Abstract

The present invention relates to a scale detecting device generated inside a rolling mill or a reducer for driving a rolling mill for producing a product in a steel mill or other various industrial sites, and has a funnel-shaped housing connected to an oil drain line connected to the rolling mill or the reducer. and; A partition member which is detachably fixed to be partitioned in a radial direction along the vertical length direction of the housing and partitioned into an entrance chamber and an exit chamber, the upper portion having a bypass hole formed therein; A filter replaceably fixed below the bypass port of the partition member; A bure having an operating bar seated on the bule fixing object provided above the entrance chamber; A limit switch fixed to an upper end of the inlet chamber of the housing and electrically connected to the panel so as to interfere with the operation bar of the bure; And a plurality of magnets embedded in the exit chamber to separate and extract only the scale in the oil containing the scale moved from the entrance chamber.

The present invention can be detected in advance before causing equipment failure as the scale of abnormal size is circulated, thereby improving the lifespan and efficiency of the equipment as well as ensuring the stability of the work.

Description

Scale detection device generated inside a rolling mill or reduction gear {INNER SCALE DETECTING DEVICE OF ROLLING MILL AND REDUCTION GEAR}

The present invention is to promptly generate wear and tear on the rolling mill or reducer gears contained in the lubricating oil supplied to the inside of the rolling mill or reducer for driving mills that produce products at steel mills or other industrial sites. The present invention relates to a scale detecting device that is generated inside a rolling mill or a reducer so as to prevent the occurrence of an equipment accident by detecting the same.

In general, the normal metal wear (= scale) generated inside the reducer is very small and small particles can be reused by filtration by conventional filtration method.

However, abnormally occurring metal wear powder has a large and large amount of particles, and metal wear particles rapidly contaminate the oil in the lubrication system, causing rapid wear of gears and bearings due to contaminated lubrication oil. This may cause a malfunction of the equipment.

In addition, since the oil of the lubricator is contaminated, the whole amount of filtration cannot be filtered by the filtration device of the lubricator so that the contaminated lubricating oil is resupplied into the rolling mill or the reducer, causing secondary equipment failure due to oil contamination. .

Therefore, the contaminated oil in the lubrication system must be recycled after filtering and refining through a separate filtration device, which causes a great loss due to a delay in the work time due to filtration and a decrease in productivity due to the shutdown of the equipment during the filtration time.

In particular, since a large number of lubricating oils are supplied to a plurality of rolling mills or reducers in one lubrication device, the equipment failure rate of the reducers or rolling mills increases more and more. In addition, it is difficult to determine which of several gear reducers or rolling mills have caused a malfunction in a short time, so the entire inspection must be performed one by one after stopping the entire facility, resulting in a great waste of time due to inspections and measures.

The present invention was devised to solve the problems in view of the above-described problems of the prior art, and quickly detects the occurrence of normal or abnormal metal wear occurring in a plurality of rolling mills or reducers, thereby preventing equipment accidents. It is an object of the present invention to provide a scale detection device that occurs inside a rolling mill or a reducer so that it can be prevented.

1 is a configuration diagram of a rolling mill or a reducer facility schematically showing a state in which a scale detection device according to the present invention is installed;

2 is an internal structure diagram of a scale detection device according to the present invention,

3 is a partially cutaway perspective view of a housing constituting the detection device of the present invention;

4 is a perspective view of a partition member constituting the detection device of the present invention,

Figure 5 is a perspective view of the installation state of the magnet constituting the detection device according to the present invention,

6a and 6b is an operating state of the detection device according to the present invention.

Explanation of symbols on the main parts of the drawings

3: drain line, 12: panel,

20: housing, 24: entrance chamber,

28: exit chamber, 32: partition member,

34: filter, 35: bypass port,

40: bere, 44: operation bar,

50: magnet, 66: limit switch.

An object of the present invention is a funnel-shaped housing connected to the oil drain line connected to the rolling mill or reducer; A partition member which is detachably fixed to be partitioned in a radial direction along the vertical length direction of the housing and partitioned into an entrance chamber and an exit chamber, the upper portion having a bypass hole formed therein; A filter replaceably fixed below the bypass port of the partition member; A bure having an operating bar seated on the bule fixing object provided above the entrance chamber; A limit switch fixed to an upper end of the inlet chamber of the housing and electrically connected to the panel so as to interfere with the operation bar of the bure; It is achieved by including a plurality of magnets embedded in the exit chamber to be able to separate and extract only the scale in the oil containing the scale moved from the entrance chamber.

Hereinafter, a preferred embodiment according to the present invention will be described in more detail based on the accompanying drawings.

1 is a configuration diagram of a rolling mill or a reducer facility schematically showing a state in which a scale detection device is installed according to the present invention, and FIG. 2 is an internal structure diagram of the scale detection device according to the present invention.

1 and 2, the scale detection apparatus 10 of the present invention is installed in a part of the drain line 3 for discharging the oil of the equipment in which the rolling mill 1 and the reduction gear 2 are installed, and in a detection state. It is provided in electrical connection with the panel 12 to monitor the.

The detection device 10 is a funnel-shaped housing 20, a partition wall 30 installed at a lower side inside the housing 20 and bisecting the housing 20, and fixed to one side of an upper surface of the housing 20. And a limit switch 66 electrically connected with 12.

A discharge valve 60 is installed at the lower end of the housing 20 so that the metal wear powder (scale) and foreign matter deposited on the bottom surface of the housing 20 can be easily controlled and discharged.

A partition member 32 is installed above the partition wall 30 to partition the inside of the housing 20. The mouth 22 into which waste oil flows through the drain line 3 by the partition member 32 is introduced. ) Is separated into an entrance chamber 24 in communication with the outlet, an outlet side 26 for discharging the introduced oil, and an outlet chamber 28 in communication with the outlet side 26.

The lower end of the dividing wall 30 divides the entry chamber 24 and the exit chamber 28 completely, while the lower end of the entry chamber 24 communicates with the inner bottom surface of the housing 20. It is preferable to allow the foreign substances to be easily discharged through the discharge valve (60).

A buckle 40 is installed above the entrance chamber 24, and an operation bar 44 is fixed to the bure 40 to move up and down to interfere with the limit switch 66, and the exit chamber ( 26 is provided in a form in which the magnet 50 is stacked in multiple stages.

In addition, a level gauge 14 connecting the upper side and the lower side of the entrance chamber 24 is provided on the outer periphery of the housing 20 to allow the level of oil contained in the entrance chamber 24 to be observed.

3 is a partially cutaway perspective view of a housing constituting the detection device of the present invention, FIG. 4 is a perspective view of a partition member constituting the detection device of the present invention, and FIG. 5 is an installation of a magnet constituting the detection device according to the present invention. State perspective view.

3 to 5, a pair of guides 34 are projected to face each other in the radial direction of the housing 20 directly above the dividing wall 30 in the housing 20. The partition member 32 is inserted.

The partition member 32 is inserted into the guide 34 so that the lower end thereof is fixed in contact with the upper end of the partition wall 300 so that the partition wall 30 and the partition member 32 completely cover the housing 20. It is divided into the entrance chamber 24 and the exit chamber 28.

At the upper inner circumference of the inlet chamber 24, a buckle holder 42 in which a part of a semicircle is drilled is welded.

The buckle holder 42 allows the buckle 40 to be moved up and down in accordance with the level (level) of oil flowing in while staying at a predetermined position in the entrance chamber 24.

The partition member 32 is formed with a groove formed in a 'c' shape, and a filter guide 33 is formed at an inner edge of the groove.

The filter guide 33 guides the filter 34 in the form of a metal mesh so that it can be easily attached and detached.

The filter 34 has a mesh that allows normal metal wear generated in the rolling mill or the reducer to pass therethrough, and does not allow the scale of abnormally generated large particles to pass through.

The bypass hole 35 is formed in the upper portion of the filter guide 33 into which the filter 34 is inserted, and the bypass hole 35 has a large particle scale abnormally generated in the entrance chamber 24. When the oil level inside the entrance chamber 24 rises due to the deposition of sedimentation), a portion of the oil immediately overflows and moves to the exit chamber 28.

A cover 36 for sealing an open upper surface of the housing 20 is fixed to an upper end of the partition member 32, and an operation bar 44 fixed to the bridle 40 penetrates through the cover 36. An operation hole 47 is formed to be possible, and a cap fixing tool 38 for fixing the magnet 50 is formed at an adjacent side thereof.

The magnet 40 is multi-stacked and fixed to the fixing bar 54, the nut 56 is provided at the upper and lower ends of the fixing bar 54 so that the magnet 40 is not easily separated from the fixing bar 54. Simultaneously with this, the fixing bar 54 can be attached to the cap 52.

The cap 52 is screwed into the cap fixture 38.

The operation relationship of the scale detection device of the present invention made in such a configuration will be described with reference to FIGS. 6A and 6B.

The oil drained from the rolling mill or the reducer flows into the exit chamber 24 through the exit 22.

At this time, the scale of the metal abrasive powder of the normal size may pass through the filter 34 inserted into the partition member 32 and move to the exit chamber 28 together with the oil, but abnormally generated scale and foreign matters may be transferred to the filter. Failure to pass 34 will remain in the entry chamber 24 or will close the filter 34.

If this process is repeated several times, the amount of oil in the entrance chamber 24 is increased, thereby raising the beret 44.

As the bar 44 rises, the operation bar 44 also rises, and the operation bar 44 which has been raised to some extent activates the limit switch 66.

In this process, a part of the oil rapidly rising and rising is overflowed through the bypass port 35 formed above the partition member 32 to move to the exit chamber 28. At this time, the scale and foreign matters of large particles Since the load does not rise together with the oil due to the load, only the oil and the scale of the normal size are moved to the exit chamber 28 through the bypass hole 35.

When the limit switch 66 is operated, a warning light indicating whether there is an abnormality is turned on the panel 12, and thus, it is possible to easily identify which part of a plurality of installed drain lines is defective.

In addition, since the operator can always observe through the level gauge 14, in some cases, even before the warning through the panel 12 can determine the degree of failure.

The scale of the normal portion moved to the exit chamber 28 is filtered by being attached to the multi-stage magnet 50, and the worker periodically removes the scale attached to the magnet 50 by opening the cap 52. Reinsert or replace with a new magnet.

In this way, it is possible to quickly and accurately read at which position the problem occurred during the operation of the equipment, so that the cause can be eliminated before the failure of the equipment.

As described in detail above, the present invention can be detected in advance before causing the equipment failure as the abnormal size scale generated inside the reducer or rolling mill is circulated, thereby improving the lifespan and efficiency of the equipment as well as improving the stability of the work. It can be secured.

Claims (2)

A funnel-shaped housing 20 connected to the oil drain line 3 connected to the rolling mill 1 or the speed reducer 2; The partition is divided in the radial direction along the vertical length direction of the housing 20 to be detachably fixed so as to be partitioned into the entrance chamber 24 and the exit chamber 28, and a bypass hole 35 is formed in the upper portion of the housing 20. Member 32; A filter (34) fixedly replaceable under the bypass opening (35) of the partition member (32); A burette 40 having an operation bar 44 seated on the buckle holder 42 provided above the entrance chamber 24; A limit switch (66) fixed to an upper end of the inlet chamber (24) of the housing (20) so as to interfere with the operation bar (44) of the bridle (40) and electrically connected to the panel (12); In the rolling mill or reducer, characterized in that it comprises a plurality of magnets (50) embedded in the exit chamber 28 to separate and extract only the scale in the oil containing the scale moved from the entrance chamber (24) Generated scale detection device. The scale detection occurring in the rolling mill or the reducer according to claim 1, wherein a level gauge 14 is installed at one side of the housing 20, the upper and lower ends communicating with the upper and lower sides of the entrance chamber 24, respectively. Device.