CN201603621U - Flexible shaft system for centrifuge - Google Patents
Flexible shaft system for centrifuge Download PDFInfo
- Publication number
- CN201603621U CN201603621U CN2010201100856U CN201020110085U CN201603621U CN 201603621 U CN201603621 U CN 201603621U CN 2010201100856 U CN2010201100856 U CN 2010201100856U CN 201020110085 U CN201020110085 U CN 201020110085U CN 201603621 U CN201603621 U CN 201603621U
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- Prior art keywords
- shaft
- bearing
- centrifuge
- unloading
- slender axles
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Abstract
The utility model discloses a flexible shaft system for a centrifuge, which comprises a support body, an unloading shaft and a slender shaft; the slender shaft is arranged in the middle part of the support body, and the unloading shaft is arranged at the lower part of the slender shaft; the upper part and the middle part of the unloading shaft are respectively fixed on the support body through a bearing 1 and a bearing 2, and the lower part thereof is provided with an unloading belt wheel; the unloading shaft is connected with the slender shaft through a tensioning sleeve arranged on the lower end of the slender shaft, and the unloading shaft, the unloading belt wheel, the tensioning sleeve, the support body and the slender shaft form an unloading transmission belt wheel shaft system; and the middle part of the slender shaft is fixedly connected wit the support body through the lower bearing of a main shaft, and the upper end thereof is fixedly connected with the support body through an elastic bearing seat and the upper bearing of the main shaft arranged in the elastic bearing seat. The flexible shaft system for the centrifuge has the advantages of reasonable structural design, stable and reliable use, easily satisfied self-alignment property, low vibration voice and strong bearing capability, and can well meet the acceleration testing requirement of the centrifuge so as to greatly improve the use safety and reliability of the centrifuge.
Description
Technical field
It is technical field that the utility model relates to flexible shaft, and the centrifuge that especially relates to a kind of electronic devices and components centrifugal acceleration and medication chemistry test usefulness with flexible shaft is.
Background technology
At present, centrifuge in electronic devices and components and medication chemistry test usefulness, its rotary axis adopts stiff shafting mostly, and the rotating shaft of stiff shafting is under the situation of running up, since critical speed and rotation from centering phenomenon (the quality geometric center of operating load is tending towards overlapping with the centre of gyration of main shaft), rotating shaft very easily bends, and bearing produces and moves radially, but rotating shaft and bearing all are rigidity, deflection is very little, and this moment, rotating shaft and bearing all produced very big internal force in order to offset the power that deforms, if the rigidity of rotating shaft or bearing all can cause whole centrifuge system unstability inadequately, cause system crash when serious.Therefore, the centrifuge of stiff shafting mainly is applicable to low speed, heavily loaded occasion.
Continuous development along with military project, aerospace industry, the reliability test of electronic devices and components requires acceleration more and more higher, and production task becomes whole Total Test by original product sampling observation screening test, therefore it has proposed very big requirement to centrifuge performance and test efficiency, along with requiring to improve constantly, the centrifuge of stiff shafting can not meet the demands far away, and in use there is following shortcoming in it: rotating speed is difficult to further improve, vibration noise is big, bearing capacity difference and higher to the requirement for dynamic balance of working rotary table.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, provide a kind of centrifuge to be with flexible shaft, its reasonable in design, use reliable and stable and satisfy easily from the centering characteristic, vibrating noise is little simultaneously, bearing capacity is strong, can the fine acceleration test requirement of satisfying centrifuge, thus the safe and reliable degree of centrifuge improved greatly.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of centrifuge with flexible shaft is, it is characterized in that: comprise supporter, off-load axle and slender axles, described slender axles are arranged on the supporter middle part, described off-load axle is arranged on the slender axles bottom, described off-load axle top and middle part are fixed on the supporter by bearing one and bearing two respectively, described off-load axle bottom is equipped with the off-load belt wheel, described off-load axle is connected as a single entity by tensioning cover and the slender axles that are arranged on the slender axles lower end, and described off-load axle and off-load belt wheel, the tensioning cover, supporter and slender axles form off-load together and transmit the belt shaft system, fixedlying connected with supporter by the main shaft lower bearing in described slender axles middle part, fixedlys connected with supporter with the main shaft upper bearing (metal) in being arranged on the elastic shaft bearing by the elastic shaft bearing in described slender axles upper end.
Described slender axles are flexible shaft.
Described elastic shaft bearing is made up of elastomer and metal material one that is sleeved on elastomer inside and the metal material two that is sleeved on elastomeric outer.
Described bearing one top is provided with regulating spring.
The utility model compared with prior art has the following advantages:
1, reasonable in design, use is reliable and stable and satisfy easily from the centering characteristic, it is branching carrier that the utility model adopts flexible shaft, a little less than its rigidity, be easy to satisfy from the centering characteristic, and first critical speed is low, working stability is reliable, adopts resilient bearing supporting simultaneously, is used for compensating depart from the oscillating quantity with the centre of gyration of slender axles in the rotary course dynamic characteristic;
2, vibrating noise is little, and bearing capacity is strong, and this structure is low to the dynamic loading requirement of bearing, and the bearing type selecting is easy, and has improved the unstability reliability of bearing, and reduces noise pollution greatly;
3, can the fine acceleration test requirement of satisfying centrifuge, thus the safe and reliable degree of centrifuge improved greatly.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
Description of reference numerals:
1-supporter; 2-regulating spring; 3-1-bearing one;
3-2-bearing two; 4-off-load axle; 5-slender axles;
6-off-load belt wheel; 7-tensioning cover; 8-main shaft upper bearing (metal);
9-elastic shaft bearing; 10-main shaft lower bearing; 11-elastomer;
12-1-metal material one; 12-2-metal material two.
The specific embodiment
A kind of centrifuge as shown in Figure 1 with flexible shaft is, comprise supporter 1, off-load axle 4 and slender axles 5, described slender axles 5 are arranged on supporter 1 middle part, described off-load axle 4 is arranged on slender axles 5 bottoms, described off-load axle 4 tops and middle part are fixed on the supporter 1 by bearing one 3-1 and bearing two 3-2 respectively, described off-load axle 4 bottoms are equipped with off-load belt wheel 6, described off-load axle 4 is connected as a single entity with slender axles 5 by the tensioning cover 7 that is arranged on slender axles 5 lower ends, and described off-load axle 4 and off-load belt wheel 6, tensioning cover 7, supporter 1 and slender axles 5 form off-load together and transmit the belt shaft system, fixedlying connected with supporter 1 by main shaft lower bearing 10 in described slender axles 5 middle parts, fixedlys connected with supporter 1 with the main shaft upper bearing (metal) 8 in being arranged on elastic shaft bearing 9 by elastic shaft bearing 9 in described slender axles 5 upper ends.
Described slender axles 5 are flexible shaft.A little less than this flexible shaft rigidity, be easy to satisfy from the centering characteristic, and first critical speed is low, working stability is reliable.
Described elastic shaft bearing 9 is made up of with metal material one 12-1 that is sleeved on elastomer 11 inside and metal material two 12-2 that are sleeved on elastomer 11 outsides elastomer 11.This elastic shaft bearing all has certain elastic displacement on radial and axial, its swing that is used for slender axles is supported.
Described bearing one 3-1 top is provided with regulating spring 2.This regulating spring can be realized automatic adjusting when bearing one heating is expanded, guarantee that bearing one has enough gaps of moving about.
In addition, the slender axles 5 in the utility model are slim-lined construction, himself intensity height, and rigidity is poor, can finely satisfy designing requirement.The support at slender axles 5 middle parts is used for the restriction to its bow action when the critical speed, guarantees that it reliably passes through critical speed stably.
A kind of centrifuge of the utility model with the rotation transmittance process of flexible shaft system is: by belt power is passed to off-load belt wheel 6 by drive motors, off-load belt wheel 6 drives 4 runnings of off-load axle, and by tensioning cover 7 with transmission of power to slender axles 5, drive working rotary tables by slender axles 5 then and rotate at a high speed.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (4)
1. a centrifuge with flexible shaft is, it is characterized in that: comprise supporter (1), off-load axle (4) and slender axles (5), described slender axles (5) are arranged on supporter (1) middle part, described off-load axle (4) is arranged on slender axles (5) bottom, described off-load axle (4) top and middle part are fixed on the supporter (1) by bearing one (3-1) and bearing two (3-2) respectively, described off-load axle (4) bottom is equipped with off-load belt wheel (6), described off-load axle (4) is connected as a single entity with slender axles (5) by the tensioning cover (7) that is arranged on slender axles (5) lower end, and described off-load axle (4) and off-load belt wheel (6), tensioning cover (7), supporter (1) and slender axles (5) form off-load together and transmit the belt shaft system, fixedlying connected with supporter (1) by main shaft lower bearing (10) in described slender axles (5) middle part, fixedlys connected with supporter (1) with the main shaft upper bearing (metal) (8) in being arranged on elastic shaft bearing (9) by elastic shaft bearing (9) in described slender axles (5) upper end.
2. be it is characterized in that with flexible shaft according to the described a kind of centrifuge of claim 1: described slender axles (5) are flexible shaft.
3. be it is characterized in that with flexible shaft according to the described a kind of centrifuge of claim 1: described elastic shaft bearing (9) is made up of elastomer (11) and the metal material two (12-2) that is sleeved on the inner metal material one (12-1) of elastomer (11) and is sleeved on elastomer (11) outside.
4. be it is characterized in that with flexible shaft according to the described a kind of centrifuge of claim 1: described bearing one (3-1) top is provided with regulating spring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201100856U CN201603621U (en) | 2010-02-05 | 2010-02-05 | Flexible shaft system for centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201100856U CN201603621U (en) | 2010-02-05 | 2010-02-05 | Flexible shaft system for centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201603621U true CN201603621U (en) | 2010-10-13 |
Family
ID=42948331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201100856U Expired - Fee Related CN201603621U (en) | 2010-02-05 | 2010-02-05 | Flexible shaft system for centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201603621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112474888A (en) * | 2020-11-18 | 2021-03-12 | 中机试验装备股份有限公司 | Elastic supporting mechanism for straightening |
-
2010
- 2010-02-05 CN CN2010201100856U patent/CN201603621U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112474888A (en) * | 2020-11-18 | 2021-03-12 | 中机试验装备股份有限公司 | Elastic supporting mechanism for straightening |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20140205 |