KR100998031B1 - Apparatus for cleaning a bearing - Google Patents

Abstract

The present invention relates to a bearing cleaning device for cleaning a bearing including an inner rim, a racer, and a roller, the lower rotating jig portion being freely rotatable to support a lower portion of the inner rim; Racer fixing jig portion for pressing and fixing the outer surface of the racer; It is installed to be rotatable on an upper portion of the lower rotary jig portion, and pushed up and down to fix the inner rim with the lower rotary jig portion by pressing an upper portion of the inner rim, which causes the rotation of the roller during rotational driving. Upper rotary drive jig portion; And a spraying means for spraying the cleaning liquid onto the inner rim, the racer, and the roller when the roller is rotated by the rotational driving of the upper rotary driving jig unit. Comes with.

According to the present invention configured as described above, in the case of the end of the life of the grease injected into the bearing or the periodic maintenance work of the bearing can be washed quickly and easily, in particular, KTX, locomotive, electric cars, passenger cars, Maintenance work of railway vehicles can be easily and efficiently by automatically and quickly cleaning foreign substances and waste grease on wheel bearings of railway vehicles such as freight cars.

Bearing, washing, rolling stock, waste grease, wheelset

Description

Bearing cleaning device {Apparatus for cleaning a bearing}

The present invention relates to a bearing cleaning device, which is a cleaning device and a cleaning method for quickly and simply cleaning the bearing when the life of the grease injected into the bearing reaches the end of the life or periodic maintenance work of the bearing, in particular, KTX, The present invention relates to a bearing cleaning device for easily and efficiently repairing railway vehicles by enabling the rapid and automatic cleaning of foreign substances and waste grease on the wheel bearings of railway vehicles such as locomotives, electric cars, passenger cars, and freight cars.

In general, a plurality of bearings are used in the rotating part of the device used in the industrial field, grease is injected into the bearing to enable smooth rotation of the bearing.

As such, the grease injected into the bearing is discharged to the outside of the bearing as the bearing rotates, or the foreign matter generated by the wear of the roller, etc., is contained in the grease to prevent the smooth rotation of the bearing. It must be cleaned and used again.

For example, for the maintenance of railway vehicles such as KTX, locomotives, electric cars, passenger cars, freight cars, etc., the railroad cars are partially dismantled for maintenance, and then reassembled and shipped. After cleaning the foreign matter and waste grease on the surface, refit it to the wheelset and refit it and inject fresh grease into the cleaned bearing.

The cleaning of the bearing, as shown in FIG. 1, by placing the disassembled bearing 10 in the cleaning tank 20 containing the cleaning liquid 25, and then manually rotating the roller of the bearing 10 by using a brush 30 or the like. Waste grease injected between (10a) was removed.

However, in the conventional waste grease removal operation as described above, since the waste grease between the rollers 10a is removed by using the brush 30, the worker manually removes the foreign matter and waste grease from the bearing 10. Since it requires a lot of work time due to this is performed, there is a problem that greatly reduces the efficiency of the maintenance work, such a problem is the cause of the increase in the cost of maintenance significantly due to the increase in labor costs.

In addition, when the waste grease that is not removed from the bearing 10 remains in the bearing 10, the life of the grease re-injected by the foreign matter in the waste grease is shortened, and the rotation state of the bearing 10 is poor.

The present invention has been made in view of the above problems, and provides a cleaning device and a cleaning method for quickly and simply cleaning the bearing when the life of the grease injected into the bearing has expired or when the bearing is periodically maintained. In particular, it is possible to automatically and quickly clean the foreign matter and waste grease on the wheel bearings of railway vehicles such as KTX, locomotives, electric cars, passenger cars, freight cars, etc. It is an object to provide a cleaning device.

In order to achieve this technical problem, the cleaning device of the bearing of the present invention, in the bearing cleaning device for cleaning the bearing including the inner rim, the racer and the roller, is installed to be rotatable freely to the lower portion of the inner rim Supporting lower rotary jig portion;

Racer fixing jig portion for pressing and fixing the outer surface of the racer; It is installed to be rotatable on an upper portion of the lower rotary jig portion, and pushed up and down to fix the inner rim with the lower rotary jig portion by pressing an upper portion of the inner rim, which causes the rotation of the roller during rotational driving. Upper rotary drive jig portion; And spraying means for spraying a cleaning solution onto the inner rim, the racer and the roller when the roller is rotated by the rotational driving of the upper rotary driving jig.

Here, the lower rotary jig unit may include a free rotating shaft, a plurality of lower jigs provided to be inclined downward on an upper portion of the free rotating shaft, and a shaft receiving body rotatably receiving a lower portion of the free rotating shaft.

Here, the racer fixing jig unit may include a plurality of fixing jigs including a pressing rod having a pressing finger for contacting and pressing the outer surface of the racer, and a rod driving unit for driving the pressing rod.

Here, the upper rotary drive jig unit, a plurality of upper jig provided to be inclined upward in the lower portion of the drive rotary shaft, the upper and lower cylinders for driving up and down the drive rotary shaft, and rotating the drive rotary shaft It may include a rotating motor.

Here, the injection means may include an upper nozzle installed in the upper space of the bearing, a lower nozzle installed in the lower space of the bearing, and a rotating nozzle installed in the lower space of the lower rotary jig portion to be driven. have.

Here, the upper cover to cover the upper portion of the cleaning device of the bearing, and may include a lower cover for receiving the lower portion of the cleaning device of the bearing. At this time, the bottom surface of the lower cover is formed to be inclined, the bottom of the lower cover may be formed with a discharge port.

On the other hand, in order to achieve another technical problem, the bearing cleaning method of the present invention, in the bearing cleaning method for cleaning the bearing including the inner rim, the racer and the roller, a) free rotation of the lower portion of the inner rim Possibly supporting and pressing and fixing an outer surface of the racer; b) pressurizing and rotating the upper portion of the inner rim to cause rotation of the roller; c) spraying the cleaning solution on the inner rim, the laser and the roller during the rotation of the roller.

According to the present invention as described above, in the case of the end of the life of grease injected into the bearing or the periodic maintenance work of the bearing can be washed quickly and simply, in particular, KTX, locomotive, electric cars, passenger cars, wagons Maintenance work of railway vehicles can be easily and efficiently by automatically cleaning the foreign substances and waste grease on the wheel bearings of railway cars.

2 and 3, the bearing cleaning apparatus of the present embodiment, the lower rotation jig portion 100, the racer fixing jig portion 200, the upper rotation driving jig portion 300, the injection means 400 It is configured to include). Meanwhile, as shown in FIG. 13, the bearing 10 includes an outer rim 11, an inner rim 13, a racer 15, and a roller 10a.

The lower rotary jig unit 100 is freely rotatable and is a component for supporting the lower portion of the inner rim 13, and the racer fixing jig unit 200 presses an outer surface of the racer 15. It is a component for fixing by, the upper rotary driving jig unit 300 is rotatably installed on the upper portion of the lower rotary jig portion 100 and presses the upper portion of the inner rim 13 to the lower rotary jig Drive up and down to secure the inner rim 13 together with the part 100 and is a component for causing the rotation of the roller 10a during rotational driving, the injection means 400 is the upper rotary driving jig It is a component for spraying the cleaning liquid on the inner rim 13, the racer 15 and the roller (10a) during the rotation of the roller (10a) by the rotational drive of (300).

On the other hand, the cleaning device of the bearing of the present embodiment, the lower rotary jig 100, the racer fixing jig 200, the upper rotary driving jig 300, the upper cover 510 for receiving the injection means 400 and It is configured to include a lower cover 520, it is possible to prevent the cleaning liquid to excel when the cleaning liquid is sprayed through the injection means 400 by the upper cover 510 and the lower cover 520. In addition, the outlet 522 is formed at the lowest portion of the lower cover 520, the discharge can be discharged.

Hereinafter, each component of the bearing cleaning device of the present embodiment will be described in detail.

First, the lower rotation jig unit 100 will be described.

The lower rotary jig part 100 is installed to be freely rotatable and is a component for supporting the lower portion of the inner rim 13 of the bearing 10. Specifically, as shown in FIGS. A free rotation shaft 110 rotatably installed, a plurality of lower jigs 120 provided on the upper portion of the free rotation shaft 110 to be inclined downward, and a shaft for rotatably accommodating a lower portion of the free rotation shaft 110. It is configured to include a receiving body (130).

The bearing body 130 has a cylindrical receiving groove 130h formed therein, and the lower portion of the free rotation shaft 110 is rotatably received in the receiving groove 130h. At this time, at least one rolling means such as a bearing is installed between the bearing body 130 and the free rotating shaft 110 to smoothly rotate the free rotating shaft 110. The bearing body 130 may be installed to be fixed to one side or both sides of the lower cover (520).

The plurality of lower jig 120 is formed to have the same angle from the center of the upper end of the free rotation shaft 110 toward the outside downward, and is tightly installed so that the shaking is minimized when the inner rim 13 is supported, for example 3, 16 lower jigs 120 may be spaced apart from each other to have the same angle (22.5 °).

The lower rotary jig unit 100 configured as described above may be configured to be freely rotated while supporting the lower portion of the inner rim 13.

Next, the racer fixing jig unit 200 will be described.

The racer fixing jig part 200 is a component for fixing the racer 15 so as not to move by pressing the outer surface of the racer 15 of the bearing 10. In detail, as shown in FIG. 7. And a pressure rod 202 having a pressure finger 202a for contacting and pressing the outer surface of the racer 15 of the bearing 10 and a rod driving portion 204 for driving the pressure rod 202. A plurality of fixing jig body 210 is configured to be provided with at least two or more.

That is, as shown in FIGS. 6 to 7, as the pressing rod 202 is driven forward and backward by the driving of the rod driving unit 204, the pressing finger 202a is formed on the outer surface of the racer 15 of the bearing 10. When the pressure is applied to both sides of the racer 15 of the bearing 10, the racer 15 is in a fixed state, but the roller 10a and the inner rim 13 are free to rotate. Becomes

The racer fixing jig unit 200 configured as described above fixes the racer 15 by pressing and fixing the racer 15 of the bearing 10 in a state in which the lower portion of the inner rim 13 is rotatably supported. And release the pressurized racer 15.

Next, the upper rotation driving jig unit 300 will be described.

The upper rotary driving jig unit 300 is rotatably installed on the lower rotary jig unit 100 and presses the upper portion of the inner rim 13 of the bearing 10 together with the lower rotary jig unit 100. Driven up and down to fix the inner rim 13, and as a component for causing the rotation of the roller (10a) of the bearing 10 during rotation drive, in detail, as shown in Figures 3 and 4, A drive rotary shaft 310, a plurality of upper jigs 320 provided inclined upwardly under the drive rotary shaft 310, an upper and lower cylinders 330 for raising and lowering the drive rotary shaft 310, and a drive rotary shaft It is configured to include a rotary motor 340 for driving the rotation 310.

The drive rotation shaft 310 may be driven up and down of the upper and lower cylinders 330, and the shaft is rotatable by the rotating motor 340, and the rotational force of the rotating motor 340 is transmitted to the upper and lower cylinders 330. It is configured to be, the operating force of the operating rod of the upper and lower cylinder 330 may be configured to be transmitted to the drive shaft 310. In addition, if the configuration that can achieve the up and down drive and the rotational drive of the drive rotary shaft 310 at the same time can be selected and used.

The plurality of upper jig 320 is formed to have the same angle from the center of the lower end of the drive rotary shaft 310 toward the outside upward, and is tightly installed so as to minimize shaking when pressing the upper portion of the inner rim 13, For example, as illustrated in FIG. 3, sixteen upper jigs 320 may be spaced apart from each other to have the same angle (22.5 °).

At this time, the plurality of upper jig 320 is provided in the drive rotation shaft 310, the end of each upper jig 320 may be configured to be able to flow elastically upward, as described above each upper jig 320 ) Can be prevented from being damaged by the inner rim 13 of the bearing 10.

The upper rotation driving jig unit 300 configured as described above may rotate the inner rim 13 as it is rotated after pressing the upper portion in the inner rim 13 while the lower portion is freely rotatable. have.

Next, the injection means 400 will be described.

The injection means 400 has an inner rim 13, a racer 15, and a roller 10a of the bearing 10 when the roller 10a of the bearing 10 rotates by the rotational driving of the upper rotary driving jig part 300. As a component for injecting the washing liquid into the), as shown in Figure 3 and 4, the upper nozzle 410 is installed in the upper space of the bearing 10, and the lower space of the bearing 10 It is configured to include a lower nozzle 420 is installed in, and a rotating nozzle 430 is installed in the lower space of the lower rotary jig portion 100 is rotated.

As shown in FIG. 9, the upper nozzle 410, the lower nozzle 420, and the rotating nozzle 430 are for spraying the washing liquid toward the bearing 10 side, and the washing liquid of the high pressure from the washing container containing the washing liquid, etc. It receives the supply of the inner rim 13, the racer 15, the roller (10a) of the cleaning solution by spraying the cleaning fluid serves to wash the waste grease.

The injection means 400 configured as described above includes an upper nozzle 410 for spraying the cleaning liquid toward the upper surface of the bearing 10, a lower nozzle 420 and a bearing for spraying the cleaning liquid toward the lower surface of the bearing 10. 10 is composed of a rotating nozzle 430 for spraying the washing solution evenly over the whole of the lower surface of the bearing 10 as it rotates in the lower surface of the bearing 10, to wash and remove the waste grease.

Hereinafter, the method for cleaning the bearing using the bearing cleaning device of the present embodiment will be described in detail.

a) supporting the lower part of the inner rim 13 so as to be freely rotatable and pressing and fixing the outer surface of the racer 15;

4 and 5, after disassembling and releasing the outer rim 11 of the bearing 10, the inner rim 13, the racer 15, and the roller 10a are assembled to fix the waste grease. The bearing 10 is slid into the input support installed on one side of the washing apparatus.

As shown in FIG. 6, the lower portion of the inner rim 13 of the bearing 10 is mounted on and supported by the plurality of lower jigs 120, and the central portion of the inner rim 13 of the bearing 10 and the free rotation axis are illustrated. The position is set so that the centers of the 110 are coincident or close to each other.

As shown in FIG. 7, the rod driving unit 204 is driven to advance the pressure rod 202 toward the bearing 10, so that the pressure finger 202a provided at the end of the pressure rod 202 is connected to the bearing 10. Contact with the racer (15) to be pressed and fixed. At this time, even if both sides of the racer 15 of the bearing 10 are pressed and fixed, the roller 10a and the inner rim 13 are freely rotatable.

b) pressurizing the upper portion of the inner rim 13 and causing the rotation of the roller 10a as it rotates;

As shown in Figure 8, as the driving rod of the upper and lower cylinders 330 is driven downward to move the drive rotary shaft 310 of the upper rotary drive support downward, a plurality of upper jigs 320 of the bearing 10 Press the upper portion of the inner rim 13 to be fixed.

As shown in FIG. 9, in the state where the racer 15 of the bearing 10 is fixed by the racer fixing jig portion 200 and the inner rim 13 of the bearing 10 is fixed, the upper rotary driving jig portion is fixed. When the rotating motor 340 of 300 is rotated, the racer 15 is fixed and the inner rim 13 rotates to cause rotation of the roller 10a.

c) spraying the cleaning liquid on the inner rim 13, the racer 15 and the roller 10a when the roller 10a is rotated;

As shown in FIG. 9, in the state in which the rotation of the roller 10a is induced, the cleaning liquid is sprayed through the upper nozzle 410, the lower nozzle 420, and the rotating nozzle 430, and the inner rim 13 is formed. The waste grease stuck to the racer 15 and the roller 10a is removed. At this time, since the rotation of the roller 10a is induced, the waste grease sandwiched between the roller 10a and the inner rim 13 can be smoothly removed. In addition, when the cleaning liquid is sprayed, the cleaning liquid does not protrude to the outside by the upper cover 510 and the lower cover 520, and as shown in FIG. 10, the inner rim 13, the racer 15 and the roller ( The waste grease and the washing solution fixed to 10a) may be discharged through the outlet 522 of the lower cover 520.

As shown in Figure 11 and 12, when the cleaning of the bearing 10 is completed, it discharges and slides to the discharge support installed on the other side of the washing apparatus.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is a schematic view for explaining a conventional bearing cleaning method.

Figure 2 is a front view of the bearing cleaning device according to an embodiment of the present invention.

Figure 3 is an exploded perspective view of the main parts of the bearing cleaning apparatus according to an embodiment of the present invention.

4 to 12 is an operation diagram for explaining the operation of the bearing cleaning apparatus according to an embodiment of the present invention.

Figure 13 is a photograph of a portion of the bearing cut to explain the structure of the bearing.

<Explanation of symbols for the main parts of the drawings>

100: lower rotation jig portion 110: free rotation shaft

120: lower jig 130: body for the shaft

200: Racer fixing jig part 202: Pressure rod

202a: Pressure finger 204: Rod drive part

210: fixed jig 300: upper rotary jig portion

310: drive rotary shaft 320: upper jig

330: upper and lower cylinder 340: rotary motor

400: injection means 410: upper nozzle

420: lower nozzle 430: rotary nozzle

510: upper cover 520: lower cover

522: outlet

Claims (8)

In the bearing cleaning device for cleaning a bearing including an inner rim, a racer and a roller, A lower rotating jig unit installed freely rotatable to support a lower portion of the inner rim; Racer fixing jig portion for pressing and fixing the outer surface of the racer; It is installed to be rotatable on an upper portion of the lower rotary jig portion, and pushed up and down to fix the inner rim with the lower rotary jig portion by pressing an upper portion of the inner rim, which causes the rotation of the roller during rotational driving. Upper rotary drive jig portion; And And a spraying means for spraying the cleaning liquid onto the inner rim, the racer, and the roller when the roller is rotated by the rotational driving of the upper rotary driving jig unit. The method of claim 1, The lower rotary jig portion, And a free rotation shaft, a plurality of lower jigs provided inclined downward on an upper portion of the free rotation shaft, and a bearing body for rotatably receiving a lower portion of the free rotation shaft. The method of claim 1, The racer fixing jig portion, And a plurality of fixing jigs including a pressing rod having a pressing finger for contacting and pressing the outer surface of the racer, and a rod driving unit for driving the pressing rod. The method of claim 1, The upper rotary driving jig unit, A drive rotary shaft, a plurality of upper jigs provided inclined upwardly in a lower portion of the drive rotary shaft, an upper and lower cylinders for driving up and down the drive rotary shaft, and a rotating motor for rotating the drive rotary shaft. Bearing cleaning device. The method of claim 1, The injection means, An upper nozzle installed in the upper space of the bearing, a lower nozzle installed in the lower space of the bearing, and a rotating nozzle installed in the lower space of the lower rotary jig part to rotate and drive. . The method of claim 1, And an upper cover for covering an upper portion of the bearing cleaning device, and a lower cover for receiving a lower part of the bearing cleaning device. The method of claim 6, The bottom surface of the lower cover is formed to be inclined, the cleaning device of the bearing, characterized in that the outlet is formed in the lowest portion of the lower cover. delete

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