CN103899642A - Slewing device and medical crane rotary arm slewing mechanism integrating slewing device - Google Patents
Slewing device and medical crane rotary arm slewing mechanism integrating slewing device Download PDFInfo
- Publication number
- CN103899642A CN103899642A CN201210580222.6A CN201210580222A CN103899642A CN 103899642 A CN103899642 A CN 103899642A CN 201210580222 A CN201210580222 A CN 201210580222A CN 103899642 A CN103899642 A CN 103899642A
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- CN
- China
- Prior art keywords
- inner ring
- flange
- outer ring
- slewing
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
- F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
- F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a slewing device and a medical crane rotary arm slewing mechanism integrating the slewing device; the slewing device comprises an inner ring, an outer ring, a roller and a retainer, wherein the roller and the retainer are arranged between the inner ring and the outer ring, and combine the inner ring and the outer ring, the inner ring and the outer ring can rotate relatively without separation, one end of the inner ring is provided with a flange, and the flange is located outside the outer ring; one end of the outer ring is also provided with a flange, wherein the end of the outer ring is away from the inner ring flange, the inner ring flange and the outer ring flange are used for connecting parts in relative slewing. The medical crane rotary arm slewing mechanism includes a rotary arm, the slewing device and a fixing flange, the rotary arm is in connection with one flange of the slewing device, and the fixing flange is in connection with the other flange of the slewing device. The medical crane rotary arm slewing mechanism solves the problems that medical crane rotary arm slewing mechanisms in the prior art are complex in structure and high in cost, and a standard bearing cannot meet demand of inner holes to pass through multi pipelines, and has the advantages of simple structure, low cost, convenient installation, high reliability and the like.
Description
Technical field
The present invention relates to swivel gear and medical hoist tower spiral arm swing mechanism.
Background technique
At present, swirl gear has a variety of forms, has plenty of the sliding bearing of utilization and machine and adds part and be combined into swirl gear, have plenty of to add part with rolling bearing and machine and be combined into swirl gear, and then for the relatively rotating parts of needs.
Existing medical hoist tower spiral arm swing mechanism complex structure, cost are high, standard rolling bearing can not meet endoporus through many air feed the demand for electric lines, adopt large standard rolling bearing can cause again structural entity size to increase, raw materials consumption and cost are further increased.
Summary of the invention
The object of the present invention is to provide the medical hoist tower spiral arm swing mechanism of a kind of swivel gear and integrated this swivel gear, to solve, existing medical hoist tower spiral arm swing mechanism complex structure, cost are high, standard rolling bearing can not meet the problem of endoporus through the demand of multi-line.
For reaching this object, the present invention by the following technical solutions:
A kind of swivel gear, it comprises inner ring, outer ring, roller and retainer, described roller and retainer are arranged between inner ring and outer ring, and make inner ring and outer ring combination, described inner ring can relatively rotate and not separate with outer ring, and one end of described inner ring is provided with flange, and this flange is positioned at outside outer ring, described outer ring is also provided with flange away from one end of inner ring flange, and described inner ring flange is used for being connected relatively rotating component with outer ring flange.
Preferably, described roller is double-row conical.
Preferably, described inner ring is made up of flanged inner ring part and spacing inner ring part, and described flanged inner ring part and spacing inner ring part are bolted, and described spacing inner ring part is stuck in the outer end of the roller of outer ring flange side.
A kind of medical hoist tower spiral arm swing mechanism, it comprises spiral arm, swivel gear and fastening flange, described swivel gear comprises inner ring, outer ring, roller and retainer, described roller and retainer are arranged between inner ring and outer ring, and make inner ring and outer ring combination, described inner ring can relatively rotate and not separate with outer ring, one end of described inner ring is provided with flange, this flange is positioned at outside outer ring, described outer ring is also provided with flange away from one end of inner ring flange, described spiral arm is connected with a flange of swivel gear, described fastening flange is connected with another flange of swivel gear.
Preferably, described roller is double-row conical.
Preferably, described inner ring is made up of flanged inner ring part and spacing inner ring part, and described flanged inner ring part and spacing inner ring part are bolted, and described spacing inner ring part is stuck in the outer end of the roller of outer ring flange side.
Beneficial effect of the present invention is: simple in structure, cost is low, hole size can be made as required in inner ring, can meet the demand for electric lines through many air feed completely, and rotate flexible, easy for installation, bearing capacity is large, reliability is high, Security is good.
Accompanying drawing explanation
Fig. 1 is that the master of the swivel gear of the embodiment of the present invention looks schematic diagram;
Fig. 2 is the cross-sectional schematic of swivel gear shown in Fig. 1 at A-A place;
Fig. 3 is the schematic top plan view of swivel gear shown in Fig. 1;
Fig. 4 is that the master of the medical hoist tower spiral arm swing mechanism of the embodiment of the present invention looks schematic diagram;
Fig. 5 is that schematic diagram is looked on a left side for the spiral arm swing mechanism of medical hoist tower shown in Fig. 4.
In figure: 0, swivel gear; 1, inner ring; 11, flanged inner ring part; 12, spacing inner ring part; 2, outer ring; 3, roller; 4, spiral arm; 5, fastening flange; 6, interior hexagonal cylindrical hook bolt.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
As shown in Figures 1 to 3, the swivel gear 0 of the present embodiment comprises inner ring 1, outer ring 2, roller 3 and retainer, roller 3 and retainer are arranged between inner ring 1 and outer ring 2, and make inner ring 1 and outer ring 2 combinations, retainer makes several rollers 3 keep certain interval, avoid being in contact with one another and colliding, thereby carry out round and smooth rolling, inner ring 1 can relatively rotate and not separate with outer ring 2, one end of described inner ring 1 is provided with flange, this flange is positioned at outside outer ring 2, outer ring 2 is also provided with flange away from one end of inner ring 1 flange, described inner ring 1 flange is used for being connected relatively rotating component with outer ring 2 flanges.
Preferably, roller 3 is double-row conical.Roller 3 and the retainer of biserial forms relative stress frame structure, can bear axially and radial force.
For ease of manufacturing, preferably, inner ring 1 is made up of flanged inner ring part 11 and spacing inner ring part 12, and flanged inner ring part 11 and spacing inner ring part 12 are bolted, and spacing inner ring part 12 is stuck in the outer end of the roller 3 of outer ring 2 flange sides.
As shown in Fig. 1～5, the medical hoist tower spiral arm swing mechanism of integrated above-mentioned swivel gear comprises spiral arm 4, swivel gear 0 and fastening flange 5, swivel gear 0 comprises inner ring 1, outer ring 2, roller 3 and retainer, roller and retainer are arranged between inner ring 1 and outer ring 2, and make inner ring 1 and outer ring 2 combinations, inner ring 1 can relatively rotate and not separate with outer ring 2, one end of inner ring 1 is provided with flange, this flange is positioned at outside outer ring 2, outer ring 2 is also provided with flange away from one end of inner ring 1 flange, a flange of swivel gear 0 is connected with spiral arm 4, another flange is connected with fastening flange 5, then, be connected with the fixed pedestal of hospital by fastening flange 5.
Preferably, roller 3 is double-row conical.Roller 3 and the retainer of biserial forms relative stress frame structure, can bear axially and radial force, thereby meet medical hoist tower spiral arm swing mechanism and bear the requirement of large moment of flexure.
For ease of manufacturing, preferably, inner ring 1 is made up of flanged inner ring part 11 and spacing inner ring part 12, and flanged inner ring part 11 and spacing inner ring part 12 are bolted, and spacing inner ring part 12 is stuck in the outer end of the roller 3 of outer ring 2 flange sides.
The invention solves that existing medical hoist tower spiral arm swing mechanism complex structure, cost are high, standard rolling bearing can not meet the problem of endoporus through the demand of multi-line, have simple in structure, cost is low, hole size can be made as required in inner ring, can meet the demand for electric line through many air feed completely, and rotate advantage flexible, that rotation noise is little, easy for installation, bearing capacity is large, reliability is high, Security is good.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a swivel gear, it comprises inner ring, outer ring, roller and retainer, described roller and retainer are arranged between inner ring and outer ring, and make inner ring and outer ring combination, described inner ring can relatively rotate and not separate with outer ring, it is characterized in that: one end of described inner ring is provided with flange, and this flange is positioned at outside outer ring, described outer ring is also provided with flange away from one end of inner ring flange, and described inner ring flange is used for being connected relatively rotating component with outer ring flange.
2. swivel gear according to claim 1, is characterized in that: described roller is double-row conical.
3. swivel gear according to claim 2, it is characterized in that: described inner ring is made up of flanged inner ring part and spacing inner ring part, described flanged inner ring part and spacing inner ring part are bolted, and described spacing inner ring part is stuck in the outer end of the roller of outer ring flange side.
4. a medical hoist tower spiral arm swing mechanism, it comprises spiral arm, swivel gear and fastening flange, it is characterized in that: described swivel gear comprises inner ring, outer ring, roller and retainer, described roller and retainer are arranged between inner ring and outer ring, and make inner ring and outer ring combination, described inner ring can relatively rotate and not separate with outer ring, one end of described inner ring is provided with flange, this flange is positioned at outside outer ring, described outer ring is also provided with flange away from one end of inner ring flange, described spiral arm is connected with a flange of swivel gear, described fastening flange is connected with another flange of swivel gear.
5. medical hoist tower spiral arm swing mechanism according to claim 4, is characterized in that: described roller is double-row conical.
6. medical hoist tower spiral arm swing mechanism according to claim 5, it is characterized in that: described inner ring is made up of flanged inner ring part and spacing inner ring part, described flanged inner ring part and spacing inner ring part are bolted, and described spacing inner ring part is stuck in the outer end of the roller of outer ring flange side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210580222.6A CN103899642B (en) | 2012-12-27 | 2012-12-27 | Medical crane rotary arm slewing mechanism integrating slewing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210580222.6A CN103899642B (en) | 2012-12-27 | 2012-12-27 | Medical crane rotary arm slewing mechanism integrating slewing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103899642A true CN103899642A (en) | 2014-07-02 |
| CN103899642B CN103899642B (en) | 2017-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210580222.6A Active CN103899642B (en) | 2012-12-27 | 2012-12-27 | Medical crane rotary arm slewing mechanism integrating slewing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103899642B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401707A (en) * | 2018-05-14 | 2018-08-17 | 北方民族大学 | A kind of tall and big tree trimming machine in gardens |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5471250A (en) * | 1977-09-28 | 1979-06-07 | Skf Ind Trading & Dev | Roller bearing |
| CN2499016Y (en) * | 2001-08-02 | 2002-07-10 | 东莞羚亚医护用品制造厂有限公司 | Medical hoist tower |
| CN1787925A (en) * | 2003-05-15 | 2006-06-14 | Ntn株式会社 | Tapered roller bearing device for wheel |
| CN1890115A (en) * | 2003-12-01 | 2007-01-03 | Ntn株式会社 | Bearing device for wheel |
| CN101668946A (en) * | 2007-04-25 | 2010-03-10 | 谢夫勒两合公司 | Multiple-row large roller bearing, especially axial radial bearing for the main arrangement of bearings of the rotor shaft of a wind power installation |
-
2012
- 2012-12-27 CN CN201210580222.6A patent/CN103899642B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5471250A (en) * | 1977-09-28 | 1979-06-07 | Skf Ind Trading & Dev | Roller bearing |
| CN2499016Y (en) * | 2001-08-02 | 2002-07-10 | 东莞羚亚医护用品制造厂有限公司 | Medical hoist tower |
| CN1787925A (en) * | 2003-05-15 | 2006-06-14 | Ntn株式会社 | Tapered roller bearing device for wheel |
| CN1890115A (en) * | 2003-12-01 | 2007-01-03 | Ntn株式会社 | Bearing device for wheel |
| CN101668946A (en) * | 2007-04-25 | 2010-03-10 | 谢夫勒两合公司 | Multiple-row large roller bearing, especially axial radial bearing for the main arrangement of bearings of the rotor shaft of a wind power installation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108401707A (en) * | 2018-05-14 | 2018-08-17 | 北方民族大学 | A kind of tall and big tree trimming machine in gardens |
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| Publication number | Publication date |
|---|---|
| CN103899642B (en) | 2017-02-15 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |