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Title:
FIXING OF A BALL BEARING ON A SHAFT WITH INTERPOSITION OF A CONICAL SLEEVE
Document Type and Number:
WIPO Patent Application WO/2018/017030
Kind Code:
A1
Abstract:
A ball bearing is provided with an inner race (1) having a conical inner surface cooperating with a corresponding conical bushing (3) with slots (7) in order to fix the ball bearing on a shaft. An extending part of the inner race (1) of the ball bearing is provided with threads on the inner periphery cooperating with threads on the conical bushing (3). Alternatively the threads are provided on the outer periphery of the extended part of the inner race and cooperate with a nut attached with screws to the conical bushing. In a further alternative two cooperating conical bushings are provided between a cylindrical inner race and the shaft, whereby a threaded nut cooperates with threads on the inner periphery of an extended part of the cylindrical inner race.

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Inventors:
MERDANE HAMDULLAH (TR)
SAYDEMIR NAZMI (TR)
Application Number:
TR2016/050417
Publication Date:
January 25, 2018
Filing Date:
November 01, 2016
Export Citation:
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Assignee:
ORTADOGU RULMAN SANAYI VE TICARET ANONIM SIRKETI (TR)
International Classes:
F16C35/073; F16D1/094; F16D1/096; F16C19/06
Foreign References:
DE7147440U
GB190215132A1903-05-14
DE7131568U
DE102012221232A12014-05-22
US5228787A1993-07-20
JP2009138765A2009-06-25
DE131448C
BE533092A
GB157937A1921-11-24
CN104963955A2015-10-07
CN2797742Y2006-07-19
CN104747598A2015-07-01
CN201934523U2011-08-17
Attorney, Agent or Firm:
CANKAYA PATENT MARKA VE DANISMANLIK LIMITED SIRKETI (Kavaklidere/Ankara, TR)
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Claims:
CLAIMS

The invention is a ball bearing characterized in that it comprises;

a conical inner race (l),which shall be fixed to the shaft by interlocking with the conical bushing I (3),

conical bushing I (3) which is cylindrical inside and partially conical and cylindrical on the outside, which shall apply pressure on the shaft by narrowing when moved inside the conical inner race (1) and which has an orifice (7) on the cylindrical inner section,

orifices (7) located on the conical bushing I (3) which enable the conical bushing I (3) to narrow down when the conical bushing I (3) moves into the conical inner race (1).

A ball bearing according to claim 1, characterized in that it comprises screw threads (13) located on the outer surface of the conical bushing I (3) and the external front surface of the conical inner race (1).

A ball bearing according to claim 1, characterized in that it comprises a wrench flat (10) opened on the conical bushing I (3).

A ball bearing according to claim 1, characterized in that it comprises a wrench flat (11) on the inner race that has been opened on the conical inner race (1).

The invention is a ball bearing characterized in that it comprises;

a conical inner race (l),which shall be fixed to the shaft by interlocking with the conical bushing II (4),

conical bushing II (4) which is cylindrical inside and conical on the outside, which shall apply pressure on the shaft by narrowing when moved inside the conical inner race (1) and which has an orifice (7) on the cylindrical inner section,

a nut (8) which shall fix the conical bushing II (4) to the screw threads (13) located on the external front surface of the conical inner race (1) having screw threads (13) on the external front surface, orifices (7) located on the conical bushing II (4) which enable the conical bushing II (4) to narrow down when the conical bushing II (4) moves into the conical inner race (1).

A ball bearing according to claim 5, characterized in that it comprises screws (9) located on the conical bushing II (4), which couples the conical bushing II (4) and the nut (8).

A ball bearing according to claim 5, characterized in that it comprises a wrench flat (10) opened on the nut (8).

A ball bearing according to claim 5, characterized in that it comprises a crescent wrench opening (12) into the side surface of the conical inner race (1), into which crescent wrench is placed in order to prevent the conical inner race (1) from turning.

The invention is a ball bearing characterized in that it comprises;

a cylindrical inner race (2) that is to be fixed to the shaft by interlocking with the cylindrical bushing (6),

cylindrical bushing (6) that is to be fitted inside the cylindrical inner race (2) whose inner surface is conical and external surface is cylindrical,

a conical bushing III (5) which is conical on the outside and cylindrical in the inside, which gets narrower and applies pressure on the shaft, when moved into the cylindrical bushing (6), orifices (7) located on the conical bushing III (5) which enable the conical bushing III (5) to narrow down when the conical bushing III (5) moves into the cylindrical inner race (6).

10. A ball bearing according to claim 9, characterized in that it comprises a nut (8) having screw threads (13) on its external surface, which fixes the cylindrical bushing (6) on the cylindrical inner race (2) with screw threads (13) located on the inner front surface of the cylindrical inner race (2) and the conical bushing III (5).

11. A ball bearing according to claim 9, characterized in that it comprises a wrench flat (10) opened on the nut (8).

12. A ball bearing according to claim 9, characterized in that it comprises a wrench flat (11) on the inner race that has been opened on the cylindrical inner race (2).

Description:
FIXING OF A BALL BEARING ON A SHAFT

WITH INTERPOSITION OF A CONICAL SLEEVE

Technical Field

The invention is related to a ball bearing which can be quickly and easily fixed onto a shaft.

The invention is particularly related to an inner race having a conic inner surface in order for it to be fixed onto a shaft and a ball bearing comprising a conical bushing with orifices is placed such that it corresponds to said conical surface.

Prior Art

Generally in order to fix ball bearings onto a shaft, methods such as opening a screw thread or a groove or a channel are used. Besides these some other parts which are hooked on the shaft in order to keep the ball bearing and the shaft together, are used in order to integrate the shaft and the ball bearing. In some methods, said integrated systems are used only at one of the ends of the shaft. Deformations occur on the shaft due to the grooves opened on the shaft following said methods. At the same time, the mounting and dismantling of the ball bearings that need to be moved on the shaft is a time consuming process and in the methods where only the ends of the shaft is used the ball bearings cannot be fixed to other desired locations. Due to these reasons, certain solutions have been developed in the art.

According to the Chinese patent document with the application number CN2797742Y within the state of the art, a ball bearing system which is a locking disc which provides the race to be fixed onto the shaft where the inner race is coupled by means of the locking tabs that can be mounted onto the shaft is described.

According to the Chinese patent document with the application number CNl 04747598 A within the state of the art, a ball bearing which can be fixed or locked onto the shaft by means of a locking ring that is connected to the shaft and a side wall of the inner race is described.

According to the Chinese patent document with the application number CN201934523U within the state of the art, a ball bearing locking system formed with the locking disc that is responsible of the locking function of the inner race onto the shaft is described.

A locking system which can be easily fixed onto the shaft, shall not lead to said deformations on the shaft and at the same time it shall save time during the mounting and dismantling of the ball bearing.

Therefore a need for the development of a ball bearing that can be fixed onto or released from a shaft at any location desired on the shaft has risen.

Objects and Brief Description of the Invention

The object of the invention is to provide a ball bearing that can be quickly and easily fixed onto and released from shaft.

The object of the invention is to provide a ball bearing that can be quickly and easily fixed onto and released from shaft on any location on the shaft.

Said ball bearing, comprises - a conical inner race, having a geometrical inner structure, which shall be fixed to the shaft by interlocking with the conical bushing,

a conical bushing that shall create pressure onto the shaft by narrowing when it moves inside the inner race, orifices located on the conical bushing, which enable the conical bushing to become narrow and to create pressure onto the shaft.

The conical bushings in said ball bearing, are moved into the inner race which has a conical inner surface. When the conical surfaces come in contact with each other, the conical bushing is moved forward and the conical bushing becomes narrow and applies pressure onto the shaft. By this means the ball bearing is fixed onto the shaft. When the conical bushing is pulled out of the inner race, the conical bushing shall expand and therefore the ball bearing shall be loosened from the shaft.

Detailed Description of the Invention

The parts of the ball bearing that have been provided in order to reach the objects of the invention have been illustrated in the attached figures.

According to said figures;

Figure 1, is the blown up perspective view of the ball bearing subject to the invention.

Figure 2, is a section view of the ball bearing subject to the invention.

Figure 3, is the blown up perspective view of another embodiment of the ball bearing subject to the invention.

Figure 4, is a section view of another embodiment of the ball bearing subject to the invention. Figure 5, is the blown up perspective view of another embodiment of the ball bearing subject to the invention.

Figure 6, is a section view of another embodiment of the ball bearing subject to the invention.

The parts in the figures have each been numbered and the references of each number have been provided below.

1. Conical inner race

2. Cylindrical inner race

3. Conical Bushing I

4. Conical Bushing II

5. Conical Bushing III

6. Cylindrical bushing

7. Orifice

8. Nut

9. Screws

10. Wrench flat

11. Wrench flat located on the

12. Crescent wrench opening

13. Screw threads

Said ball bearing, comprises

a conical inner race (1), which shall be fixed to the shaft by interlocking with the conical bushing I (3),

conical bushing I (3) which is cylindrical inside and partially conical and cylindrical on the outside, which shall apply pressure on the shaft by narrowing when moved inside the conical inner race (1) and which has an orifice (7) on the cylindrical inner section. orifices (7) located on the conical bushing I (3) which enable the conical bushing I (3) to narrow down when the conical bushing I (3) moves into the conical inner race (1).

The ball bearing subject to the invention comprises screw threads (13) located on the outer surface of the conical bushing I (3) and the front surface of the conical inner race (1).

The ball bearing subject to the invention, comprises a wrench flat (10) opened on the conical bushing I (3).

The ball bearing subject to the invention, comprises a wrench flat (11) on the inner race opened on the conical inner race (1).

According to the embodiment of this invention comprises screw threads (13) located on the outer surface of the conical bushing I (3) and the front surface of the conical inner race (1). The conical bushing I (3) shall move into the conical inner race (1) when the conical bushing I (3) is rotated and gets narrower by means of the orifices (7) and applies pressure on the shaft. When the conical bushing I (3) rotate in the opposite direction, the conical bushing I (3) shall expand and the ball bearing shall loosen on the shaft. (Figure -1 and Figure -2) Ball bearing subject to the invention, comprises,

a conical inner race (1), which shall be fixed to the shaft by interlocking with the conical bushing II (4),

conical bushing II (4) which is cylindrical inside and conical on the outside, which shall apply pressure on the shaft by narrowing when moved inside the conical inner race (1) and which has an orifice (7) on the cylindrical inner section, a nut (8) which shall fix the conical bushing II (4) to the screw threads (13) located on the external front surface of the conical inner race (1) having screw threads (13) on the external front surface,

orifices (7) located on the conical bushing II (4) which enable the conical bushing II (4) to narrow down when the conical bushing II (4) moves into the conical inner race (1).

The ball bearing subject to the invention comprises screws (9) located on the conical bushing II (4), which couples the conical bushing II (4) and the nut (8).

The ball bearing subject to the invention, comprises a wrench flat (10) opened on the nut (8). The ball bearing subject to the invention, comprises crescent wrench opening (12) into the side surface of the conical inner race (1), into the which crescent wrench is placed in order to prevent the conical inner race (1) from turning.

According to the embodiment of this invention, the conical bushing II (4) are coupled to the nut (8) by means of screws (9). The conical bushing II (4) is placed such that it can be inserted into the conical inner race (1). The screw threads (13) located in the inner surface of the nut (8) shall be fitted into the screw threads (13) on the external surface of the conical inner race (1) and the nut shall start to be turned. When the nut (8), therefore the conical bushing II (4) starts turning, the conical bushing II (4) starts to move into the conical inner race (1). The conical surface inside the conical inner race (1) and the conical inner surface of the conical bushing II (4) coincide with each other. By this means when the conical bushing II (4)moves inside the inner race (1), it gets narrower due to the orifices (7) and therefore applies force on the shaft. When the nut (8) and therefore the conical bushing II (4) rotate in the opposite direction, the conical bushing II (4) shall expand and the ball bearing shall loosen on the shaft. (Figure - 3 and Figure -4)

Ball bearing subject to the invention, comprises,

- a cylindrical inner race (2) that is to be fixed to the shaft by interlocking with the cylindrical bushing (6),

cylindrical bushing (6) that is to be fitted inside the cylindrical inner race (2) whose inner surface is conical and external surface is cylindrical, a conical bushing III (5) which is conical on the outside and cylindrical in the inside, which gets narrower and applies pressure on the shaft, when moved into the cylindrical bushing (6),

orifices (7) located on the conical bushing III (5) which enable the conical bushing III (5) to get narrow when the conical bushing III (5) moves into the cylindrical inner race (6).

The ball bearing subject to the invention, comprises a nut (8) having screw threads (13) on its external surface, which fixes the cylindrical bushing (6) on the cylindrical inner race (2) with screw threads (13) located on the inner front surface of the cylindrical inner race (2) and the conical bushing III (5).

The ball bearing subject to the invention, comprises a wrench flat (10) opened on the nut (8).

The ball bearing subject to the invention, comprises a wrench flat (11) on the inner race opened on the cylindrical inner race (2).

Cylindrical inner race (2) is used in this embodiment of the invention. The conical bushing III (5) gets narrower by means of the orifices (7), as it moves further into the cylindrical bushing (6). The insertion of the conical bushing III (5) into the cylindrical bushing (6) is enabled by rotating the nut (8) to be turned toward the cylindrical inner race (2). In this embodiment screw threads (13) are provided on the external surface of the nut (8) and the inner surface of the cylindrical inner race (2). (Figure -5 and Figure -6)

In the ball bearing applications subject to the invention, a wrench flat (10) opened on the nut (8) and the conical bushing I (3) is provided. Said wrench openings (10) are used to turn the conical bushing I (3) or the nut (8). Similarly, a wrench flat (11) located on the inner race which has been opened on the cylindrical inner race (2) and the conical inner race (1) or a crescent wrench opening (12) opened on the conical inner race (1) is provided. The wrench flat (11) located on the conical inner race (1) and the crescent wrench opening (12) opened on the conical inner race (1) enable the conical inner race (1) and the cylindrical inner race (2) to stay fixed without turning. (Figure -2,Figure 4 and Figure -6)




 
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