JP2012020251A - Bearing cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bearing cleaning device with high cleaning efficiency.SOLUTION: The constitution of the bearing cleaning device is as follows: A bearing 50 is mounted between two rotary drive shafts 30 and 30, which support the former while the latter rotate. Inside the bearing 50, a nozzle hollow shaft 1 is introduced along the axis 55. Further, the nozzle hollow shaft 1 includes a plurality of formed nozzle holes 10. A cleaning liquid is supplied to the nozzle hollow shaft 1 from a cleaning liquid supply device 16, and is jetted diametrally from the nozzle holes 10. In addition, the nozzle holes 10 are arranged spirally on the surface of the circumferential side of the nozzle hollow shaft 1, and spew the cleaning liquid to clean the internal circumference of the bearing 50 by the reverse rotation of the nozzle hollow shaft 1 to the rotating direction of the bearing 50 by a drive device 15. Besides, the nozzle hollow shaft 1 is constituted in the way it can move back and forth in the axial direction by the drive device 15, and cleans the internal circumference of the bearing 50 by jetting the cleaning liquid from the nozzle holes 10, while shuttling back and forth or rotating along the axis 55 of the bearing 50.

Description

  The present invention relates to a bearing cleaning device.

Since the bearing uses a large amount of grease around the rolling elements such as balls and rollers, various cleaning devices have been proposed.
For example, in the cleaning apparatus disclosed in Japanese Patent Laid-Open No. 2005-230607, a plurality of bearings are laid flat, and cleaning is sprayed from above and below while rotating the inner ring of each bearing.

JP 2005-230607 A

However, in the conventional cleaning apparatus as described above, since the cleaning liquid is simply sprayed, the grease cannot be sufficiently removed, and in particular, there is a problem that the grease removal on the back side of the rolling element cannot be sufficiently cleaned. In addition, since the bearings are placed flat, there is a limit to the number of bearings that can be cleaned at one time, and there is a problem that a large amount of bearings cannot be cleaned.
The object of the present invention is to solve the problems of the prior art.

  In order to achieve the above object, the present invention provides a bearing cleaning device in which a rolling element is exposed on the axis side, a bearing rotation support device that supports the bearing in a state where the bearing is upright, and a bearing substantially on the axis. A nozzle hollow shaft that is inserted, can reciprocate in the axial direction, and can rotate in a direction opposite to the rotation direction of the bearing, a nozzle hole arranged in a spiral shape on the nozzle hollow shaft, and the nozzle hollow shaft is rotated. And a nozzle hollow shaft driving device that reciprocates, and a cleaning liquid supply device that supplies the cleaning liquid to the nozzle hollow shaft and ejects the cleaning liquid from the nozzle hole.

  According to the bearing cleaning device of the present invention, there is an effect that the grease can be sufficiently removed.

Schematic which shows one Embodiment of this invention. Explanatory drawing which shows operation | movement of one Embodiment of this invention. The top view of one embodiment of the present invention. The front view of one Embodiment of this invention. The side view of one Embodiment of this invention.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 schematically shows a cleaning mechanism inside the bearing 50 in the cleaning apparatus of the present invention.

The bearing 50 is a subject in which the roller 51 which is a rolling element is exposed. The bearing 50 is placed on the rotary support device 3 in a standing state, that is, in a state where the axis 55 of the bearing 50 extends in a substantially horizontal direction.
The rotation support device 3 includes a rotation drive shaft 30. A bearing 50 is placed between the two rotation drive shafts 30, 30, and an outer ring 52 of the bearing 50 contacts the rotation drive shaft 30. It is configured to be supported while rotating in the opposite direction to the rotation of the shaft 30.

  Inside the bearing 50, the nozzle hollow shaft 1 can be inserted along the axis 55. A plurality of nozzle holes 10 are formed in the nozzle hollow shaft 1, and the cleaning liquid is supplied from the cleaning liquid supply device 16 to the nozzle hollow shaft 1, and the cleaning liquid is ejected from the nozzle holes 10 in the radial direction. Yes.

  The nozzle hole 10 is helically arranged on the peripheral side surface of the nozzle hollow shaft 1. That is, the position in the axial direction and the position in the circumferential direction are shifted from each other on the peripheral side surface of the nozzle hollow shaft 1 by a predetermined interval.

The nozzle hollow shaft 1 is further configured to be rotatable by a driving device 15. The rotation direction of the nozzle hollow shaft 1 is opposite to the rotation direction of the bearing 50 by the rotation drive shaft 30, and the inner periphery of the bearing 50 is ejected from the nozzle hole 10 of the nozzle hollow shaft 1 rotating in the reverse direction. The cleaning liquid is used for cleaning.
Further, the nozzle hollow shaft 1 is configured to be reciprocally movable in the axial direction by the driving device 15, and the cleaning liquid is ejected from the nozzle hole 10 while reciprocating and rotating along the axis 55 of the bearing 50. The inner periphery of the bearing 50 is configured to be cleaned.

In the above configuration, the inner peripheral surface of the bearing 50 and the roller 51 rotate in one direction and are cleaned by the cleaning liquid ejected from the nozzle hole 10 of the nozzle hollow shaft 1 that rotates in the direction opposite to the rotation direction. The back of the roller 51 is efficiently cleaned.
Further, since the nozzle hollow shaft 1 reciprocates along the axis 55, the entire inner peripheral surface of the bearing 50 can be cleaned. Moreover, since the nozzle holes 10 are arranged in a spiral shape, there is no unwashed portion, and the entire inner peripheral surface of the bearing 50 can be cleaned.

  FIG. 2 is a conceptual diagram of cleaning according to the configuration of this embodiment. As described above, the cleaning portion formed by the spirally arranged nozzle holes 10 forms a spiral cleaning line 12, and this cleaning line 12 reciprocates and rotates in the axial direction. There is an effect that the entire surface can be cleaned to the back of the roller 51.

  In FIG. 1, a single bearing 50 is shown for the sake of simplicity. However, a large number of bearings 50 are arranged coaxially in the direction of the axis 55, and are arranged rotatably on the rotation drive shafts 30, 30 of the rotation support device 3. Thus, a large number of bearings 50 can be cleaned at the same time.

A specific configuration of the cleaning device for cleaning a large number of bearings 50 will be described with reference to FIGS.
FIG. 3 is a plan view of the apparatus. The nozzle base 20 and the bearing pallet 21 are arranged on the left and right sides of the cleaning chamber 22, and are configured to be movable. When cleaning, the nozzle base 20 and the bearing pallet 21 are moved to the inside of the cleaning chamber 22 to perform cleaning in the cleaning chamber 22. ing.

In this embodiment, five nozzle hollow shafts 1 are arranged in parallel on the nozzle base 20 and are configured to be rotatable and reciprocally movable.
On the other hand, in the bearing pallet 21, five rows of bearings 50 are arranged at positions corresponding to the nozzle hollow shafts 1 according to the number of the nozzle hollow shafts 1. In each row, eight bearings 50 are arranged coaxially in an upright state. As shown in FIG. 5, the bearings 50 are placed in five rows on the six rotational drive shafts 30 arranged in parallel in the rotation support device 3, and a total of 40 bearings 50 are placed on the bearing pallet 21. It is configured to be.
Each bearing 50 is configured to rotate in the direction opposite to the rotation direction of the rotation drive shaft 30 by the rotation of the rotation drive shaft 30.

As shown in FIGS. 4 and 5, an upper side cleaning nozzle 8 and a lower fixed cleaning nozzle 9 are provided inside the cleaning chamber 22, and the outer side of the bearing 50 is cleaned from the upper surface, side surface, and bottom surface. Yes. The upper surface cleaning nozzle 8 is movable in the axial direction, and is configured to perform cleaning while moving in the cleaning chamber 22.
In addition, 25 is an external surface rust removal apparatus, and it is the structure which grind | polishes the external surface of the bearing 50 using an NTA brush, and removes rust.

In the above configuration, the bearing 50 to be cleaned is placed on the bearing pallet 21, and the bearing pallet 21 is moved into the cleaning chamber 22. Next, the nozzle base 20 is moved into the cleaning chamber 22, and the nozzle hollow shaft 1 is disposed on the axis 55 of the bearing 50.
In this state, the rotation support device 3 is driven, the rotation drive shaft 30 is rotated, and the bearing 50 is rotated in one direction. At the same time, the cleaning liquid is supplied from the cleaning liquid supply device 16 to the nozzle hollow shaft 1, and the cleaning liquid is ejected from the nozzle hole 10. At this time, cleaning is performed while rotating the nozzle hollow shaft 1 in the direction opposite to the bearing 50 by the driving device 15 and reciprocating in the direction of the axis 55.
At the same time, the outside of the bearing 50 is cleaned by the upper side cleaning nozzle 8 and the lower fixed cleaning nozzle 9.
As described above, all the inside and outside of the bearing 50 are efficiently cleaned.

1: nozzle hollow shaft, 3: rotation support device, 8: upper side cleaning nozzle, 9: lower fixed cleaning nozzle, 10: nozzle hole, 12: cleaning line, 15: driving device, 16: cleaning liquid supply device, 20: nozzle Base: 21: Bearing pallet; 22: Cleaning room; 25: External rust removing device; 30: Rotary drive shaft; 50: Bearing; 51: Roller; 52: Outer ring;

Claims (3)

In the bearing cleaning device where the rolling elements are exposed on the axis side,
A bearing rotation support device that rotatably supports the bearing in a standing state;
A nozzle hollow shaft inserted substantially on the axis of the bearing, reciprocally movable in the axial direction, and rotatable in the direction opposite to the rotational direction of the bearing;
A nozzle hole arranged in a spiral on the nozzle hollow shaft;
A nozzle hollow shaft driving device for rotating and reciprocating the nozzle hollow shaft;
A cleaning liquid supply device for supplying the cleaning liquid to the nozzle hollow shaft and ejecting the cleaning liquid from the nozzle hole;
A bearing cleaning device comprising: In the bearing cleaning device where the rolling elements are exposed on the axis side,
A bearing rotation support device that supports a plurality of bearings in a state where they can be rotated on the same axis; and
A nozzle hollow shaft that is inserted substantially on the axis of the plurality of bearings, can reciprocate in the axial direction, and can rotate in a direction opposite to the rotation direction of the bearing;
A nozzle hole arranged in a spiral on the nozzle hollow shaft;
A nozzle hollow shaft driving device for rotating and reciprocating the nozzle hollow shaft;
A cleaning liquid supply device for supplying the cleaning liquid to the nozzle hollow shaft and ejecting the cleaning liquid from the nozzle hole;
A bearing cleaning device comprising: An upper side cleaning nozzle for cleaning the upper and side surfaces of the bearing, and a lower fixed cleaning nozzle for cleaning the bottom surface;
The bearing cleaning device according to claim 1 or 2.

Images