CN202770729U - Magnetic levitation bearing supporting structure step scan moment of force measuring device - Google Patents
Magnetic levitation bearing supporting structure step scan moment of force measuring device Download PDFInfo
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- CN202770729U CN202770729U CN 201220447099 CN201220447099U CN202770729U CN 202770729 U CN202770729 U CN 202770729U CN 201220447099 CN201220447099 CN 201220447099 CN 201220447099 U CN201220447099 U CN 201220447099U CN 202770729 U CN202770729 U CN 202770729U
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Abstract
The utility model discloses a magnetic levitation bearing supporting structure step scan moment of force measuring device, belongs to measuring equipment and particularly relates to a device for checking hemorheology. The device comprises a measuring outer barrel, a measuring inner barrel, a middle shaft, an upper bearing and a lower bearing, the middle shaft is installed on the measuring inner barrel, and the upper and lower bearings support the middle shaft. The device is characterized in that both of the upper and lower bearings are magnetic levitation bearings and fixed on corresponding supports respectively, a horizontal swing link is fixed on the middle shaft, an inner end of a hair spring is fixed on the middle shaft, an outer end of the hair spring is fixed on a hair spring support, a displacement detection device is arranged at the edge of a large rotary plate, a gear wheel is mounted on the outer circumference of the large rotary plate, the gear wheel is mutually meshed with an active supporting wheel which is driven by a stepping motor, and the large rotary plate is supported by three supporting wheels including the active supporting wheel to be in a horizontal state. According to the magnetic levitation bearing supporting structure step scan moment of force measuring device, the upper and lower magnetic levitation bearings are fixedly connected with the middle shaft of the measuring inner barrel, so that the phenomenon that a suspension wire device sways during measuring is avoided, and the defect that force of friction exists in a jewel bearing is overcome.
Description
Technical field
The utility model belongs to measuring equipment, is the equipment that the check blood flow becomes specifically.
Background technology
Clinical examination hemorheology project, mainly contain three kinds of technology, it is respectively capillary type, the cone-plate formula, suspension-wire type, hairspring, capillary type can accurately not measured the blood viscosity under a certain specific shear rate, actual measurement be a certain section result under the close shear rate, the organic principles such as the albumen in the blood are easy to invest capillary tube inner wall, cause the particularly variation of caliber of smooth finish, and cleaning capillaceous is relatively more difficult, so capillary type is seldom used, cone-plate formula blood flow becomes the viscosity that can measure the blood sample under a certain specific shear rate, that rotates in sample cuts the orgnaizer of illegal blood donation, its rotating speed is subject to the viscosity influence of sample, detection is cut steady-state speed or the deceleration of orgnaizer of illegal blood donation under a certain specific shear rate and is calculated sample viscosity, the rotation of cutting the orgnaizer of illegal blood donation drives by electromagnetic field, when shear rate below 10, the rotating speed of cutting the orgnaizer of illegal blood donation requires just very slow, the strength of Electromagnetic Drive is attenuated to very little, it is unstable measured value to occur, Measuring Time is partially long, be subjected to the problems such as external interference increase, suspension-wire type is measured structure, the prismatic reflection optical system detection deviation angles that adopt more, complex structure, and be subject to the performance restriction of optical detection deviation angle original paper, be subjected to the structural limitations of himself, the range of measuring also is conditional, support the measurement structure owing to use suspension to substitute jewel bearing, overcome the friction force that jewel bearing itself exists, the accuracy of detection that improves, but the phenomenon that can twist in the suspension measuring process, and suspension itself also can produce an opposite moment of torsion, this characteristic can change along with the serviceable life of suspension, simultaneously, because suspension is to be flexible coupling, the phenomenon that in measuring process, also can shake, hairspring is measured in the structure, uses jewel bearing to support and measures structure, can not overcome the friction force that jewel bearing itself exists.
The utility model content
Shake easily in order to overcome in the measurement of existing suspension-wire type blood flow change checkout equipment, the jewel bearing formula can't overcome the deficiency that there is friction force in bearing, the utility model provides a kind of magnetic suspension bearing supporting construction step-scan torque measuring device, this magnetic suspension bearing supporting construction step-scan torque measuring device uses accurately the magnetic suspension bearing supporting construction and utilizes step-scan and hairspring to measure torque structure, can gamut measures whole blood and plasma sample at 1-200mpa.s
-1Viscosity number in the scope under arbitrary shear rate.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of magnetic suspension bearing supporting construction step-scan torque measuring device, comprise the measurement urceolus, measure inner core, be installed in the axis of measuring on the inner core and support the upper of axis, lower bearing, it is characterized in that: described metal (upper is magnetic suspension bearing and is separately fixed on separately the support, be fixed wtih horizontal fork on the axis, hairspring the inner is fixed on the axis, the outer end is fixed on the hairspring support, the traffic cycle excircle that displacement detection device is housed on the edge is that gear and active support wheel driven by stepper motors are intermeshing, and traffic cycle is by comprising that initiatively three support wheels of support wheel are supported for horizontality.
Described magnetic suspension bearing is comprised of with the permanent-magnet suspension bearing magnetic pole B that can be suspended in permanent-magnet suspension bearing magnetic pole A inside the permanent-magnet suspension bearing magnetic pole A that is fixed on the support, and permanent-magnet suspension bearing magnetic pole B is fixed on the axis.
The beneficial effects of the utility model are that magnetic suspension bearing is fixedly connected on the method for measuring the axis on the inner core about using, axis can be flexibly with measure the inner core synchronous rotary, both overcome that suspension-wire type equipment can twist and because suspension is to be flexible coupling in measuring process, the phenomenon that also can shake in measuring process has solved again and has used jewel bearing can't overcome the deficiency that there is friction force in bearing.
Description of drawings
Fig. 1 is structural representation of the present utility model,
Among the figure, 1. go up permanent-magnet suspension bearing magnetic pole A, 2. go up permanent-magnet suspension bearing magnetic pole B, 3. hairspring, 4. hairspring support, 5. axis, 6. support wheel, 7. displacement detection device, 8. horizontal fork, 9. support wheel initiatively, 10. great wheel, 11. times permanent-magnet suspension bearing magnetic pole A, 12. lower permanent-magnet suspension bearing magnetic pole B, 13. the measurement inner core, 14. measure urceolus, 15. stepper motors.
Embodiment
Embodiment of the present utility model is, as shown in the figure:
Described magnetic suspension bearing is comprised of with the permanent-magnet suspension bearing magnetic pole B that can be suspended in permanent-magnet suspension bearing magnetic pole A inside the permanent-magnet suspension bearing magnetic pole A that is fixed on the support, and permanent-magnet suspension bearing magnetic pole B is fixed on the axis.
Upper permanent-magnet suspension bearing magnetic pole A is two magnetic poles that polarity is identical with upper permanent-magnet suspension bearing magnetic pole B, upper permanent-magnet suspension bearing magnetic pole A is fixed on the support, the repulsion that formation makes progress permanent-magnet suspension bearing magnetic pole B, lower Permanent-magnet bearing magnetic pole A, lower Permanent-magnet bearing magnetic pole B also is the same, bearing A in two groups of magnetic suspension bearing groups is connected with fixed support respectively, bearing B in two groups of magnetic suspension bearing groups is connected respectively connection with axis, axis 5 is plastic material, reduced influencing each other between two magnetic suspension bearing groups, axis 5 be connected inner core 13 and connect, measure inner core 13 and axis 5, hairspring 3 and fork 8, and the repulsion equal and opposite in direction that just forms with two groups of permanent-magnet suspension bearing magnetic pole A and permanent-magnet suspension bearing magnetic pole B of the general assembly (TW) of the magnetic pole B in two groups of magnetic suspension bearing groups, opposite direction, it is inner that magnetic pole B in two groups of magnetic suspension bearing groups is suspended in magnetic pole A, there is not sliding friction, the purpose that adopts two groups of permanent-magnet suspension bearings is in order to make the more stable of axis 5 rotations, to avoid appearing at the situation that occurs rocking in the process of rotation.
Initiatively support wheel 9 and two support wheels 6 are fixed on the support, great wheel 10 is fixing, initiatively support wheel 9 is toothed discs, gear on gear and great wheel 10 edges is intermeshing, when stepper motor 15 rotations and 9 rotation of drive active support wheel, great wheel 10 also is driven to rotate, great wheel 10 inward flanges are installed with displacement detection device 7, displacement detection device 7 is along with great wheel 10 together rotates, be used for detecting the stop position of fork 8, displacement detection device 7 uses electrooptical device to detect, and does not contact with horizontal fork 8.
During measurement, the sample filling is located in the slit of measuring urceolus 14 and measure between the inner core 13, under the state that measurement urceolus 14 stops, horizontal fork 8 also is in halted state, stepper motor 15 rotations, drive great wheel 10 rotations, displacement detection device 7 detects the stop position of fork 8, measuring urceolus 14 turns clockwise with certain rotating speed, the rotation of drive sample, the friction force that is produced by the glutinousness of sample can drive the measurement inner cylinder rotating, measuring inner core 13 drive axis 5 and horizontal fork 8 turns clockwise, hairspring 3 tightens up under the drive of axis 5 simultaneously, the process that hairspring 3 tightens up has produced elastic reaction moment, the elastic reactance that produces when hairspring 3 and when being equated by the friction force that the glutinousness of sample produces, measure inner core 13 and reach equilibrium state, stop in the sample, this moment, fork 8 also stopped on a certain position, stepper motor 15 turns clockwise, driving displacement detection device 7 turns clockwise, when displacement detection device 7 detected the stop position of horizontal fork 8, stepper motor 15 stopped the rotation, the step number that record stepper motor 15 is advanced.
Reach equilibrium state when measuring inner core 13, when stopping in the sample, the elastic reactance that hairspring 3 produces and equated by the friction force that the glutinousness of sample produces, and the displacement of the elastic reactance that hairspring produces and horizontal fork 8 is proportional, the step number that the displacement of horizontal fork 8 and stepper motor 15 are advanced is proportional, record stepper motor 15 step number of advancing with, by computational analysis, just can calculate the viscosity of sample.
Claims (2)
1. magnetic suspension bearing supporting construction step-scan torque measuring device, comprise the measurement urceolus, measure inner core, be installed in the axis of measuring on the inner core and support the upper of axis, lower bearing, it is characterized in that: described metal (upper is magnetic suspension bearing and is separately fixed on separately the support, be fixed wtih horizontal fork on the axis, hairspring the inner is fixed on the axis, the outer end is fixed on the hairspring support, the traffic cycle excircle that displacement detection device is housed on the edge is that gear and active support wheel driven by stepper motors are intermeshing, and traffic cycle is by comprising that initiatively three support wheels of support wheel are supported for horizontality.
2. magnetic suspension bearing supporting construction step-scan torque measuring device according to claim 1, it is characterized in that: described magnetic suspension bearing is comprised of with the permanent-magnet suspension bearing magnetic pole B that can be suspended in permanent-magnet suspension bearing magnetic pole A inside the permanent-magnet suspension bearing magnetic pole A that is fixed on the support, and permanent-magnet suspension bearing magnetic pole B is fixed on the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447099 CN202770729U (en) | 2012-09-04 | 2012-09-04 | Magnetic levitation bearing supporting structure step scan moment of force measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447099 CN202770729U (en) | 2012-09-04 | 2012-09-04 | Magnetic levitation bearing supporting structure step scan moment of force measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202770729U true CN202770729U (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220447099 Expired - Fee Related CN202770729U (en) | 2012-09-04 | 2012-09-04 | Magnetic levitation bearing supporting structure step scan moment of force measuring device |
Country Status (1)
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| CN (1) | CN202770729U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830041A (en) * | 2012-09-04 | 2012-12-19 | 济南美医林电子仪器有限公司 | Stepping scanning torque measuring device in magnetic-levitation bearing support structure |
| CN105807039A (en) * | 2016-04-29 | 2016-07-27 | 苏州品诺维新医疗科技有限公司 | Thrombus elastometer |
| CN106568658A (en) * | 2016-11-01 | 2017-04-19 | 西安交通大学 | Device and method for measuring different torsion and stretching properties of material in micro-nano level |
| CN106989853A (en) * | 2017-05-05 | 2017-07-28 | 北京航空航天大学 | A kind of micro- torque tester |
| RU2814425C1 (en) * | 2023-05-13 | 2024-02-28 | Общество С Ограниченной Ответственностью "Научно-Производственное Предприятие Вискойнт" | Rotary viscometer |
-
2012
- 2012-09-04 CN CN 201220447099 patent/CN202770729U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830041A (en) * | 2012-09-04 | 2012-12-19 | 济南美医林电子仪器有限公司 | Stepping scanning torque measuring device in magnetic-levitation bearing support structure |
| CN105807039A (en) * | 2016-04-29 | 2016-07-27 | 苏州品诺维新医疗科技有限公司 | Thrombus elastometer |
| CN105807039B (en) * | 2016-04-29 | 2018-11-23 | 诺泰科生物科技（苏州）有限公司 | Thrombus elastometer |
| CN106568658A (en) * | 2016-11-01 | 2017-04-19 | 西安交通大学 | Device and method for measuring different torsion and stretching properties of material in micro-nano level |
| CN106568658B (en) * | 2016-11-01 | 2018-11-23 | 西安交通大学 | Material torsion stretches the test device and method of different performance under a kind of micro/nano-scale |
| CN106989853A (en) * | 2017-05-05 | 2017-07-28 | 北京航空航天大学 | A kind of micro- torque tester |
| RU2814425C1 (en) * | 2023-05-13 | 2024-02-28 | Общество С Ограниченной Ответственностью "Научно-Производственное Предприятие Вискойнт" | Rotary viscometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20150904 |
|
| EXPY | Termination of patent right or utility model |