CN202661351U - Rotating speed control device for measuring mechanism of suspension wire type hemorrheology instrument - Google Patents
Rotating speed control device for measuring mechanism of suspension wire type hemorrheology instrument Download PDFInfo
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- CN202661351U CN202661351U CN 201220318521 CN201220318521U CN202661351U CN 202661351 U CN202661351 U CN 202661351U CN 201220318521 CN201220318521 CN 201220318521 CN 201220318521 U CN201220318521 U CN 201220318521U CN 202661351 U CN202661351 U CN 202661351U
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- rotating speed
- control device
- speed control
- hemorrheology
- wire type
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Abstract
The utility model discloses a rotating speed control device for a measuring mechanism of a suspension wire type hemorrheology instrument, belongs to measuring equipment, in particular to equipment for testing the flow characteristic of a material like the viscosity and particularly relates to equipment for testing the hemorrheology. The rotating speed control device for the measuring mechanism of the suspension wire type hemorrheology instrument is characterized in that a driven rotating shaft of which a shaft line and a suspension wire are a same straight line is installed on the bottom surface of an outer measuring barrel, and the bottom end of the driven rotating shaft is installed on a bearing pedestal through a bearing; and a big driven belt pulley and a small driven belt pulley installed on the driven rotating shaft are respectively connected with a big drive belt pulley and a small drive belt pulley installed on a stepper motor shaft. The rotating speed control device has the beneficial effects that any rotating speed requirement of shear rate 1-200 is realized through setting a switchable bottom shear rate and high shear rate two-gear transmission mode; and moreover, the torque output is stable at any rotating speed. The rotating speed control device is a novel rotating speed control device for the measuring mechanism of the suspension wire type hemorrheology instrument, and a novel hemorrheology instrument made by the technology.
Description
Technical field
The utility model belongs to measuring equipment, and particularly the flow characteristics of test material such as the equipment of glutinousness, is the equipment that the check blood flow becomes specifically.
Background technology
Clinical examination suspension-wire type hemorheology project, require shear rate in 1～200 scope, to detect the viscosity of blood sample, this will refinement really controls the rotational speed of the measurement mechanism of rotation, and the velocity variations in 1～200 shear rate scope is very large, common reductor minimum speed can reach low 1 the rotating speed requirement of cutting, but the rotating speed requirement when maximum speed does not reach shear rate 200, and the rotating speed that can reach shear rate 200 when maximum speed is when requiring, minimum speed does not just reach the rotating speed requirement of shear rate 1, namely allow to reach the rotating speed requirement, but when minimum speed and maximum speed, the moment of torsion output of reductor is widely different, simultaneously, the performance requirement that at the uniform velocity rotates to reductor is also very high.
The utility model content
Little in order to overcome existing suspension-wire type blood rheological instrument rotation speed control mechanism height speed control scope processed, the deficiency of uneven torque, the utility model provides a kind of suspension-wire type blood rheological instrument measuring mechanism revolution speed control device, this suspension-wire type blood rheological instrument measuring mechanism revolution speed control device is not only realized arbitrary rotating speed requirement of shear rate 1～200, and the output of the moment of torsion under arbitrary rotating speed is also highly stable.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of suspension-wire type blood rheological instrument measuring mechanism revolution speed control device, comprise by measuring being placed on that urceolus and suspension hanging and measure the measurement mechanism that the measurement inner core in the urceolus forms, it is characterized in that: axis is housed in measurement urceolus bottom surface and suspension is collinear driven spindle, the driven spindle bottom is installed on the bearing base by bearing, be equipped with on the driven spindle large and small two driven pulleies respectively be installed in step motor shaft on little, large driving pulley belt be connected.
Described step motor shaft is bearing with two driving pulleys and is connected, and step motor shaft is connected with telescopic driving wheel flat key slidably, and driving wheel up and down both ends of the surface is equipped with the taper bolt that can insert the pin-and-hole on the driving pulley.
Described telescopic driving wheel middle part is provided with annular groove, is provided with in the groove and stirs the shift fork that driving wheel slides up and down.
The belt that driven pulley and driving pulley and transmission are used can replace with sprocket wheel and chain respectively.
Using method of the present utility model is: when the needs low shear rate, during test of low rotating speed, shift fork is stirred driving wheel and is moved up, two taper bolts above the driving wheel and initiatively two pin-and-holes engagements of small belt pulley, initiatively small belt pulley and stepping motor synchronous rotation, initiatively small belt pulley drives driven big belt pulley, driven spindle and measures the urceolus rotation.Because initiatively the diameter of small belt pulley is much smaller than the diameter of driven big belt pulley, so played the effect of slowing down, making the rotating speed of measuring urceolus satisfy shear rate is 1 o'clock measurement rotating speed requirement.Although this moment, driven small belt pulley was also in rotation, and drove initiatively big belt pulley rotation, initiatively connected by bearing between big belt pulley and the stepping motor rotating shaft, so the rotation of active big belt pulley can not affect the rotation of stepper motor.
When shift fork moves downward, make the lower taper bolt of telescopic driving wheel and the initiatively pin-and-hole engagement of big belt pulley, initiatively big belt pulley and stepping motor synchronous rotation, initiatively big belt pulley drives driven small belt pulley, driven spindle and measures the urceolus rotation, because initiatively the diameter of big belt pulley is much larger than the diameter of driven small belt pulley, so played the effect of accelerating, making the rotating speed of measuring urceolus satisfy shear rate is 200 o'clock measurement rotating speed requirement.Although this moment, driven big belt pulley was also in rotation, and drove initiatively small belt pulley rotation, initiatively connected by bearing between small belt pulley and the stepping motor rotating shaft, so the rotation of active small belt pulley can not affect the rotation of stepper motor.
Cut or height is cut when measuring when hanging down, telescopic driving wheel all can only with a driving pulley engagement, thereby can realize low cut rate or high rotating speed control of cutting under the rate.
The beneficial effects of the utility model are the arbitrary rotating speed requirements that realized shear rate 1～200 by the undercutting variability that can switch and two grades of kinds of drive of high shear rate are set, and moment of torsion stable output that can be under arbitrary rotating speed, a kind of novel suspension-wire type blood rheological instrument measuring mechanism revolution speed control device, the novel blood rheological instrument that can adopt this technology to make.
Description of drawings
Fig. 1 is structural representation of the present utility model,
Among the figure, 1. measure urceolus, 2. driven spindle, 3. bearing, 4. driven big belt pulley, 5. pin-and-hole, 6. belt, 7. flat key, 8. telescopic driving wheel, 9. taper bolt, 10. shift fork, 11. driven small belt pulleys, 12. bearing base, 13. active big belt pulleys, 14. active small belt pulleys, 15. stepper motor, 16. suspensions, 17. measure inner core.
Embodiment
Embodiment of the present utility model is, as shown in the figure:
Embodiment 1, a kind of suspension-wire type blood rheological instrument measuring mechanism revolution speed control device, comprise by measuring being placed on that urceolus 1 and suspension 16 hanging and measure the measurement mechanism that the measurement inner core 17 in the urceolus forms, it is characterized in that: axis is housed in measurement urceolus bottom surface and suspension is collinear driven spindle 2, the driven spindle bottom is installed on the bearing base 12 by bearing 3, be equipped with on the driven spindle driven big belt pulley 4 be connected small belt pulley 11 respectively be installed in stepper motor 15 axles on the active small belt pulley be connected big belt pulley belt 6 and be connected.
Described step motor shaft is bearing with two driving pulleys and is connected, and step motor shaft is connected with telescopic driving wheel 8 flat keys 7 slidably, and driving wheel up and down both ends of the surface is equipped with the taper bolt 9 of the pin-and-hole 5 that can insert on the driving pulley.
Described telescopic driving wheel middle part is provided with annular groove, is provided with in the groove and stirs the shift fork 10 that driving wheel slides up and down.
Claims (3)
1. suspension-wire type blood rheological instrument measuring mechanism revolution speed control device, comprise by measuring being placed on that urceolus and suspension hanging and measure the measurement mechanism that the measurement inner core in the urceolus forms, it is characterized in that: axis is housed in measurement urceolus bottom surface and suspension is collinear driven spindle, the driven spindle bottom is installed on the bearing base by bearing, be equipped with on the driven spindle large and small two driven pulleies respectively be installed in step motor shaft on little, large driving pulley belt be connected.
2. suspension-wire type blood rheological instrument measuring mechanism revolution speed control device according to claim 1, it is characterized in that: described step motor shaft is bearing with two driving pulleys and is connected, step motor shaft is connected with telescopic driving wheel flat key slidably, and driving wheel up and down both ends of the surface is equipped with the taper bolt that can insert the pin-and-hole on the driving pulley.
3. suspension-wire type blood rheological instrument measuring mechanism revolution speed control device according to claim 2 is characterized in that: be provided with annular groove in the middle part of the described telescopic driving wheel, be provided with in the groove and stir the shift fork that driving wheel slides up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220318521 CN202661351U (en) | 2012-07-03 | 2012-07-03 | Rotating speed control device for measuring mechanism of suspension wire type hemorrheology instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220318521 CN202661351U (en) | 2012-07-03 | 2012-07-03 | Rotating speed control device for measuring mechanism of suspension wire type hemorrheology instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202661351U true CN202661351U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220318521 Expired - Fee Related CN202661351U (en) | 2012-07-03 | 2012-07-03 | Rotating speed control device for measuring mechanism of suspension wire type hemorrheology instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202661351U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643234A (en) * | 2017-10-23 | 2018-01-30 | 贵州大学 | A kind of settling ore pulp experimental provision and its method |
-
2012
- 2012-07-03 CN CN 201220318521 patent/CN202661351U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643234A (en) * | 2017-10-23 | 2018-01-30 | 贵州大学 | A kind of settling ore pulp experimental provision and its method |
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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: 20130109 Termination date: 20150703 |
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| EXPY | Termination of patent right or utility model |