CN219529568U - Steel wire raceway bearing for CT machine - Google Patents
Steel wire raceway bearing for CT machine Download PDFInfo
- Publication number
- CN219529568U CN219529568U CN202320349713.3U CN202320349713U CN219529568U CN 219529568 U CN219529568 U CN 219529568U CN 202320349713 U CN202320349713 U CN 202320349713U CN 219529568 U CN219529568 U CN 219529568U
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- steel wire
- ring
- raceway
- steel
- outer ring
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 120
- 239000010959 steel Substances 0.000 title claims abstract description 120
- 238000005096 rolling process Methods 0.000 claims abstract description 12
- 238000013016 damping Methods 0.000 claims abstract description 6
- 239000004519 grease Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Rolling Contact Bearings (AREA)
Abstract
The steel wire raceway bearing for the CT machine comprises an inner ring, an outer ring and steel balls, wherein the outer ring is sleeved outside the inner ring, a plurality of steel balls are circumferentially distributed between the inner ring and the outer ring, and the steel balls are divided into two rows; the steel wire rolling way comprises an outer steel wire rolling way and an inner steel wire rolling way; the inner ring surface of the outer ring is provided with a ring groove capable of accommodating two rows of steel balls, two angle ends in the ring groove are respectively provided with an outer steel wire raceway correspondingly matched with the corresponding steel balls, and a damping ring is arranged between the outer steel wire raceway and the corresponding angle end of the ring groove of the outer ring; the inner ring is provided with an inner steel wire raceway correspondingly matched with the corresponding steel balls, the outer steel wire raceway and the inner steel wire raceway matched with the steel balls in the same column are distributed in a diagonal line, the steel balls are in point contact with the outer steel wire raceway and the inner steel wire raceway, and the contact angle is alpha; the damping rings are arranged between the corresponding angular ends of the outer steel wire roller path and the outer ring groove, so that the vibration noise value during operation is effectively reduced, the requirement of medical equipment on the noise value is met, and the industrial problem is effectively solved.
Description
Technical Field
The utility model relates to the technical field of bearings, in particular to a steel wire raceway bearing for a CT machine.
Background
CT machines are known as one of the indispensable devices in medical diagnosis today, and have been rapidly developed in recent years; the development of the main shaft bearing for the medical CT machine in China has been over 20 years, the main shaft bearing is always in a four-point contact ball turntable bearing structure, can bear certain radial load, axial load, overturning moment and the like, and has the advantages of higher rotating speed, low noise, high precision and low vibration;
with the development of medical equipment technology, the requirements on the main shaft bearing of the CT machine are gradually increased, the rotating speed is increased from the initial 60r/min to the current 180r/min, even more than 200r/min, the noise value is reduced from 70dB to 65dB (A) or 60dB (A), and the original four-point contact ball turntable bearing structure cannot meet the requirements on higher rotating speed and lower noise value; therefore, the method not only needs to optimize and improve the manufacturing process, the performance and the economy of the main shaft bearing of the CT machine, but also needs to further improve the structure of the main shaft bearing of the CT machine;
chinese patent (publication No. CN 201547128U) discloses a double-row wire raceway ball type slewing bearing, which comprises an outer ring one and an outer ring two, wherein the outer ring two is positioned at the inner side of the lower part of the outer ring one, the inner ring is positioned at the inner sides of the outer ring one and the outer ring two, the outer wall of the inner ring is provided with an upper groove and a lower groove, the inner side of the outer ring one is provided with a lower groove, the upper groove and the lower groove of the outer wall of the inner ring one, the upper groove of the inner side of the outer ring one and the lower groove of the inner side of the outer ring two are respectively embedded with a wire ring, a steel ball is arranged between the upper groove of the outer wall of the inner ring and the upper groove of the inner side of the outer ring one, and a steel ball is also arranged between the lower groove of the outer wall of the inner ring and the lower groove of the inner side of the outer ring two; the double-row steel wire structure can meet the radial force and overturning moment of axial force, but can not really meet the technical requirements of higher rotating speed, lower noise value, higher reliability and longer service life of the CT machine in use.
Disclosure of Invention
In order to overcome the defects in the background technology, the utility model discloses a steel wire raceway bearing for a CT machine.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:
the steel wire raceway bearing for the CT machine comprises an inner ring, an outer ring and steel balls, wherein the outer ring is arranged outside the inner ring, a plurality of steel balls are circumferentially distributed between the inner ring and the outer ring, and the plurality of steel balls are divided into two rows; the steel wire rolling way comprises an outer steel wire rolling way and an inner steel wire rolling way; the inner ring surface of the outer ring is provided with a ring groove capable of accommodating two rows of steel balls, two angle ends in the ring groove are respectively provided with an outer steel wire raceway correspondingly matched with the corresponding steel balls, and a damping ring is arranged between the outer steel wire raceway and the corresponding angle end of the ring groove of the outer ring; the inner ring is provided with an inner steel wire raceway correspondingly adapted to the corresponding steel balls, the outer steel wire raceway and the inner steel wire raceway which are adapted to the steel balls in the same column are distributed in a diagonal line, the steel balls are in point contact with the outer steel wire raceway and the inner steel wire raceway, the contact angle is alpha, and the contact angle alpha is 15-45 degrees.
Preferably, the outer ring is of a split structure formed by splicing two components, the two components are connected through bolt fastening, and the joint surface of the two components is positioned between two corner ends of the ring groove.
Preferably, a step structure is provided between the bonding surfaces of the two components.
Preferably, the inner ring is provided with a grease injecting channel correspondingly communicated with the ring groove of the outer ring.
Preferably, the outer steel wire raceway and the inner steel wire raceway are both of an open structure, and the joint surface of the openings of the outer steel wire raceway and the inner steel wire raceway is an inclined surface.
Preferably, a protruding part is arranged on one side of the inner ring, and a belt groove is arranged at one end, far away from the outer ring, of the protruding part.
Preferably, a plurality of lightening holes are circumferentially arranged at intervals on the inner ring protruding portion.
Preferably, retainers are arranged between the inner ring and the outer ring and correspond to the two rows of steel balls.
Preferably, a plurality of mounting holes are distributed on the end surfaces of the outer ring and the inner ring at intervals along the circumferential direction.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
the steel wire raceway bearing for the CT machine disclosed by the utility model has a novel and unique and innovative structure, and the damping rings are arranged between the corresponding angular ends of the outer steel wire raceway and the outer ring groove, so that the vibration noise value during operation is effectively reduced, the requirement of medical equipment on the noise value is met, and the industrial problem is effectively solved;
the bearing structures of the outer steel wire roller path and the inner steel wire roller path are adopted, so that the number of steel balls can be increased, and the overall machining precision, the starting friction performance and the bearing capacity can be effectively improved, thereby improving the working rotation speed, reducing noise and prolonging the service life; the outer steel wire raceway and the inner steel wire raceway are of an open type structure, the joint surface of the openings of the outer steel wire raceway and the inner steel wire raceway is an inclined surface, and the outer steel wire raceway and the inner steel wire raceway are detachably connected, so that maintenance is more convenient and quick, if noise is increased or failure occurs, the inner ring and the outer ring do not need to be replaced, only the inner outer steel wire raceway and the inner steel wire raceway need to be replaced, maintenance and replacement cost is greatly saved, and waste is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a partial structure of the present utility model;
FIG. 3 is a schematic structural view of an outer wire raceway;
FIG. 4 is a schematic view of the structure of the inner wire raceway;
fig. 5 is a schematic structural view of a damper ring.
In the figure: 1. an inner ring; 2. an outer ring; 3. a steel ball; 4. an outer wire raceway; 5. an inner wire raceway; 6. a shock-absorbing ring; 7. a fat injection channel; 8. pi Daicao; 9. a lightening hole; 10. a retainer; 11. and (5) mounting holes.
Description of the embodiments
The present utility model will be explained in detail by the following examples, and the purpose of the present utility model is to protect all technical improvements within the scope of the present utility model, and in the description of the present utility model, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., only correspond to the drawings of the present utility model, and in order to facilitate description of the present utility model, it is not necessary to indicate or imply that the apparatus or element referred to has a specific orientation.
The first embodiment, with reference to fig. 1-5, is a wire raceway bearing for a CT machine, comprising an inner ring 1, an outer ring 2 and steel balls 3, wherein the outer ring 2 is sleeved outside the inner ring 1, a plurality of steel balls 3 are circumferentially distributed between the inner ring 1 and the outer ring 2, and the plurality of steel balls 3 are divided into two rows; the steel wire rolling way also comprises an outer steel wire rolling way 4 and an inner steel wire rolling way 5; the inner annular surface of the outer ring 2 is provided with annular grooves capable of accommodating two rows of steel balls 3, two angle ends in the annular grooves are respectively provided with an outer steel wire raceway 4 correspondingly matched with the corresponding steel balls 3, and a damping ring 6 is arranged between the outer steel wire raceway 4 and the corresponding angle end of the annular groove of the outer ring 2, so that the vibration noise value during operation is effectively reduced, and the requirement of medical equipment on the noise value is met;
the inner ring 1 is provided with an inner steel wire raceway 5 correspondingly adapted to the corresponding steel balls 3, the outer steel wire raceway 4 and the inner steel wire raceway 5 which are adapted to the same column of steel balls 3 are arranged in a diagonal line, the steel balls 3 are in point contact with the outer steel wire raceway 4 and the inner steel wire raceway 5, the contact angle is alpha, and the alpha is 15-45 degrees; the bearing structures of the outer steel wire raceway 4 and the inner steel wire raceway 5 are adopted, 3 steel balls can be increased, and the overall machining precision, the starting friction performance and the bearing capacity can be effectively improved, so that the working rotation speed is improved, the noise is reduced, and the service life is prolonged; the outer steel wire raceway 4 and the inner steel wire raceway 5 are of an open type structure, the joint surfaces of the openings of the outer steel wire raceway 4 and the inner steel wire raceway 5 are inclined surfaces, and the outer steel wire raceway 4 and the inner steel wire raceway 5 are detachably connected, so that maintenance is more convenient and quick, if noise is increased or failure occurs, the inner ring 1 and the outer ring 2 do not need to be replaced, only the inner outer steel wire raceway 4 and the inner steel wire raceway 5 need to be replaced, maintenance and replacement cost is greatly saved, and waste is reduced.
In the second embodiment, referring to fig. 1 to 5, the difference between the wire raceway bearing for CT machine and the first embodiment is that, based on the first embodiment, the outer ring 2 is a split structure formed by splicing two components, the two components are fastened and connected by bolts, and the joint surface of the two components is located between two corner ends of the ring groove, so that the whole assembly can be facilitated, and the assembly difficulty is reduced; a step structure is arranged between the joint surfaces of the two assemblies, so that the positioning is convenient, the dislocation of the two assemblies is avoided, and the assembly precision is effectively improved.
In the third embodiment, referring to fig. 1 to 5, in a wire raceway bearing for a CT machine, on the basis of the first or second embodiment, the inner ring 1 is provided with a grease injection channel 7 correspondingly communicated with the ring groove of the outer ring 2, and grease can be injected into the steel ball 3 through the grease injection channel 7, so that the starting friction force is further reduced, and the running noise is reduced;
the belt pulley is characterized in that a protruding part is arranged on one side of the inner ring 1, a belt groove 8 is formed in one end, far away from the outer ring 2, of the protruding part, the structure is compact, the belt pulley and the ferrule are integrated, material consumption is reduced, and production cost is reduced; the plurality of lightening holes 9 are circumferentially arranged at intervals on the protruding part of the inner ring 1, so that the weight is reduced, and the material consumption is reduced; the retainer 10 is arranged between the inner ring 1 and the outer ring 2 and corresponds to the two rows of steel balls 3, the retainer 10 adopts a flexible nylon belt as a manufacturing material, the retainer can be cut out at will according to the use length, expensive mould cost is not required to be input, and the production and manufacturing cost is extremely low; meanwhile, the nylon retainer reduces the running noise of the bearing and the weight of the bearing; a plurality of mounting holes 11 are distributed on the end face of the outer ring 2 and the end face of the inner ring 1 at intervals along the circumferential direction, so that the mounting and the use can be facilitated.
The utility model has not been described in detail in the prior art, and it is apparent to those skilled in the art that the utility model is not limited to the details of the above-described exemplary embodiments, but that the utility model can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, and all changes coming within the meaning and range of equivalency are intended to be embraced therein.
Claims (9)
1. The steel wire raceway bearing for the CT machine comprises an inner ring (1), an outer ring (2) and steel balls (3), wherein the outer ring (2) is sleeved outside the inner ring (1), a plurality of steel balls (3) are circumferentially distributed between the inner ring (1) and the outer ring (2), and the steel balls (3) are divided into two rows; the method is characterized in that: the steel wire rolling device also comprises an outer steel wire rolling path (4) and an inner steel wire rolling path (5); the inner ring surface of the outer ring (2) is provided with a ring groove capable of accommodating two rows of steel balls (3), two corner ends in the ring groove are respectively provided with an outer steel wire raceway (4) correspondingly matched with the corresponding steel balls (3), and a damping ring (6) is arranged between the outer steel wire raceway (4) and the corresponding corner end of the ring groove of the outer ring (2); the inner ring (1) is provided with an inner steel wire raceway (5) correspondingly matched with the corresponding steel balls (3), the outer steel wire raceway (4) and the inner steel wire raceway (5) matched with the steel balls (3) in the same column are distributed in a diagonal line, the steel balls (3) are in point contact with the outer steel wire raceway (4) and the inner steel wire raceway (5), the contact angle is alpha, and the contact angle alpha is 15-45 degrees.
2. The wire-raceway bearing for CT machines according to claim 1, wherein: the outer ring (2) is of a split structure formed by splicing two components, the two components are connected through bolt fastening, and the joint surface of the two components is positioned between two corner ends of the annular groove.
3. The wire-raceway bearing for CT machines according to claim 2, wherein: a step structure is arranged between the joint surfaces of the two components.
4. The wire-raceway bearing for CT machines according to claim 1, wherein: the inner ring (1) is provided with a grease injecting channel (7) correspondingly communicated with the annular groove of the outer ring (2).
5. The wire-raceway bearing for CT machines according to claim 1, wherein: the outer steel wire raceway (4) and the inner steel wire raceway (5) are of an open structure, and the joint surface of the openings of the outer steel wire raceway (4) and the inner steel wire raceway (5) is an inclined surface.
6. The wire-raceway bearing for CT machines according to claim 1, wherein: one side of the inner ring (1) is provided with a protruding part, and one end of the protruding part far away from the outer ring (2) is provided with a belt groove (8).
7. The wire-raceway bearing of claim 6 for CT machines, wherein: a plurality of lightening holes (9) are circumferentially distributed on the protruding portion of the inner ring (1) at intervals.
8. The wire-raceway bearing for CT machines according to claim 1, wherein: and a retainer (10) is arranged between the inner ring (1) and the outer ring (2) and corresponds to the two rows of steel balls (3).
9. The wire-raceway bearing for CT machines according to claim 1, wherein: a plurality of mounting holes (11) are distributed on the end face of the outer ring (2) and the end face of the inner ring (1) at intervals along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320349713.3U CN219529568U (en) | 2023-03-01 | 2023-03-01 | Steel wire raceway bearing for CT machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320349713.3U CN219529568U (en) | 2023-03-01 | 2023-03-01 | Steel wire raceway bearing for CT machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219529568U true CN219529568U (en) | 2023-08-15 |
Family
ID=87631157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320349713.3U Active CN219529568U (en) | 2023-03-01 | 2023-03-01 | Steel wire raceway bearing for CT machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219529568U (en) |
-
2023
- 2023-03-01 CN CN202320349713.3U patent/CN219529568U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240402 Address after: 471000 No. 2 North Industrial Road, Luolong Science and Technology Park, Luolong District, Luoyang City, Henan Province Patentee after: Luoyang Luozhou Precision Bearing Co.,Ltd. Country or region after: China Address before: Room 317, 3rd Floor, Building 5, Changchun Road, Jianxi District, Luoyang City, Henan Province, 471000 Patentee before: Luoyang Zhichuang Bearing Technology Service Center (Limited Partnership) Country or region before: China |
|
| TR01 | Transfer of patent right |