CN114289195B - Calibrating device for measuring rotation speed indication error of medical centrifugal machine - Google Patents
Calibrating device for measuring rotation speed indication error of medical centrifugal machine Download PDFInfo
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- CN114289195B CN114289195B CN202111628036.0A CN202111628036A CN114289195B CN 114289195 B CN114289195 B CN 114289195B CN 202111628036 A CN202111628036 A CN 202111628036A CN 114289195 B CN114289195 B CN 114289195B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004062 sedimentation Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000012472 biological sample Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention relates to the technical field of centrifuge maintenance equipment, and discloses a calibration device for measuring a rotation speed indication error of a medical centrifuge, which comprises a handheld main body and further comprises: the invention relates to a medical centrifuge speed indicating meter, which comprises a handheld main body, a rotating speed indicating meter, a rotating gear, a micro-special motor, a transmission gear, a clamping sleeve, a micro-special motor, a voltage meter, a medical centrifuge speed indicating meter and a calibration medical centrifuge.
Description
Technical Field
The invention relates to the technical field of centrifuge maintenance equipment, in particular to a calibration device for measuring a rotation speed indication error of a medical centrifuge.
Background
The centrifugal machine is a method for separating, concentrating and purifying biological sample by utilizing the centrifugal force of rotary motion and the difference of sedimentation coefficient or buoyancy density of material, and its action principle is two kinds of centrifugal filtration and centrifugal sedimentation, in which the centrifugal filtration is the centrifugal pressure produced by suspension under the centrifugal field, and acts on the filter medium so as to make the liquid pass through the filter medium, called filtrate, and the solid particles are retained on the surface of the filter medium so as to implement solid-liquid separation, and another method is centrifugal sedimentation, and utilizes the principle of quick sedimentation and stratification of various components with different densities of suspension or emulsion in centrifugal force field to implement liquid-solid or liquid-liquid separation, and precisely utilizes the strong centrifugal force produced by high-speed rotation of centrifugal machine rotor to force the particles in the liquid to overcome diffusion and quicken sedimentation speed, so that the material with different sedimentation coefficient and buoyancy density in the sample can be separated.
The possible occurrence of rotational speed errors during actual use mainly includes:
1. the actual rotation speed of the medical centrifugal machine caused by the problem of the indicating value table exceeds the indicating value table or is lower than the indicating value table; 2. the rotation speed cannot be accurately determined by the indicating value table caused by the problem of the motor rotor.
In the face of this, the conventional method is to send the maintenance directly, but in the actual use, the maintenance is troublesome and slow, so that a device capable of being detected by the user is required.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, the present invention provides a calibration device for measuring the error of the rotation speed indication value of a medical centrifuge, so as to solve the above-mentioned problems in the prior art.
The invention provides the following technical scheme: a calibrating device for measuring medical centrifuge rotational speed indication error, includes handheld main part, still includes:
rotation speed table: the front surface of the handheld main body is fixedly connected with the back surface of the rotation speed indicator;
detecting main body: the middle part of the bottom end of the handheld main body is connected with the top of the detection main body;
The detection main part is including rotating the gear, one side of rotating the gear is equipped with little special motor, fixedly connected with drive gear on little special motor's the output shaft, rotate gear and little special motor intermeshing, the bottom fixedly connected with chucking sleeve of rotating the gear, chucking telescopic outer wall is located the bottom mounting of rotating the gear and has cup jointed the bearing, fixed slot has been seted up to the bottom of handheld main part, fixed slot and the outer wall of rotating the gear of handheld main part bottom carry out fixed connection, chucking groove has been seted up to chucking telescopic bottom, chucking groove carries out movable joint with medical motor rotor head bolt, be equipped with the voltmeter in the handheld main part, the output numerical value end and the rotational speed indicator of voltmeter in the handheld main part are connected, little special motor's power output end and handheld main part are interior voltmeter and are connected through the wire.
Further, the middle part that the rotation gear one side was kept away from to the chucking sleeve has been seted up through the groove, the removal groove has been seted up to the upper end at chucking sleeve middle part, chucking sleeve's one end through tank bottom fixedly connected with spring that returns to the position, the other end fixedly connected with bolt movable block of spring that returns to the position, the bolt movable block activity cup joints in the removal inslot, the rotatory cover of chucking has all been cup jointed in the equal activity of bolt at removal groove both ends, rotatory groove has been seted up to one side of rotatory cover of chucking, chucking returns to the position the groove has been seted up to the opposite side of rotatory cover of chucking, is the medical motor rotor of chucking in order to the chucking that can more fasten.
Further, the bottom that the rotatory cover of chucking is located chucking groove opening part that returns is equipped with the counter weight end, is in order to increase the counter weight, can make the central point that detects the main part put the problem of mismatching simultaneously to can not appear the deviation when making to detect the main part and rotate.
Further, the ratio of the diameter of the opening of the rotary groove to the diameter of the outer wall of the clamping sleeve is ten to ten, and the clamping sleeve is movably sleeved with the rotor of the medical centrifugal machine through the groove so as to conveniently clamp the clamping sleeve by the rotary sleeve, so that the safety is improved.
Further, the ratio of the number of teeth of the rotating gear to the number of teeth of the transmission gear of the micro-motor is three to one, and the output value of the voltmeter in the handheld main body is three times amplified to prevent the micro-motor from generating load.
Further, the clamping rotating sleeve rotates by one hundred and thirty-five degrees around the bolt moving block, so that the clamping rotating sleeve is convenient to rotate and open.
The technical effects and advantages of the embodiment of the invention are as follows:
1. the embodiment of the invention is beneficial to clamping the medical centrifuge rotor through the clamping groove of the clamping sleeve when in use, and meanwhile, the rotor is not influenced by different steering.
2. The embodiment of the invention is beneficial to clamping the medical centrifugal machine rotor in the actual use process by arranging the clamping rotary sleeve, thereby improving the safety of equipment.
3. According to the embodiment of the invention, the detection main body is arranged, so that when the clamping sleeve which is favorable for passing through rotates, the micro-special motor generates current, and the voltmeter in the handheld main body is enabled to display the rotating speed through the rotating speed indicator along with the current generated by the micro-special motor, so that the rotating speed of the voltmeter is compared with the rotating speed of the medical centrifuge, and the problem of calibrating the indicating value indicator of the medical centrifuge is solved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is an exploded view of the overall structure of the present invention.
FIG. 3 is an exploded view of the detection body according to the present invention.
Fig. 4 is a schematic view of the structure of the clamping sleeve of the present invention.
Fig. 5 is a schematic view of a clamping rotary sleeve structure of the present invention.
Fig. 6 is a schematic cross-sectional view of a detecting body according to the present invention.
Fig. 7 is a schematic view showing the rotation of the clamping rotary sleeve according to the present invention.
The reference numerals are: 1. a hand-held main body; 2. a rotation speed table; 201. a micro-motor; 3. a detection body; 301. a bearing; 302. rotating the gear; 303. clamping the sleeve; 3031. a moving groove; 3032. a clamping groove; 304. a return spring; 305. a bolt movable block; 306. clamping the rotary sleeve; 3061. clamping a homing groove; 3062. a rotary groove; 3063. a counterweight end.
Detailed Description
The embodiments of the present invention will be clearly and completely described below with reference to the drawings in the present invention, and the configurations of the structures described in the following embodiments are merely examples, and the calibration device for measuring the error of the rotation speed indication value of the medical centrifuge according to the present invention is not limited to the structures described in the following embodiments, and all other embodiments obtained by a person having ordinary skill in the art without making any inventive effort are within the scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a calibration device for measuring error of rotation speed indication of a medical centrifuge, comprising a handheld body 1, further comprising:
Rotational speed table 2: the front surface of the hand-held main body 1 is fixedly connected with the back surface of the rotation speed indicator 2;
detection main body 3: the middle part of the bottom end of the handheld main body 1 is connected with the top of the detection main body 3;
The detection main body 3 comprises a rotating gear 302, a micro-special motor 201 is arranged on one side of the rotating gear 302, a transmission gear is fixedly connected to an output shaft of the micro-special motor 201, the rotating gear 302 is meshed with the micro-special motor 201, a clamping sleeve 303 is fixedly connected to the bottom end of the rotating gear 302, the outer wall of the clamping sleeve 303 is positioned at the bottom end of the rotating gear 302 and fixedly connected with the outer wall of the rotating gear 302, a fixed groove is formed in the bottom end of the handheld main body 1, a clamping groove 3032 is formed in the bottom end of the clamping sleeve 303, the clamping groove 3032 is movably clamped with a head bolt of a medical motor, a voltmeter is arranged in the handheld main body 1, the output numerical end of the voltmeter in the handheld main body 1 is connected with the rotation speed indicator 2, and the power output end of the micro-special motor 201 is connected with the voltmeter in the handheld main body 1 through a wire.
Referring to fig. 3-5, a through groove is formed in the middle of one side of the clamping sleeve 303, away from the rotating gear 302, a movable groove 3031 is formed in the upper end of the middle of the clamping sleeve 303, one end of the clamping sleeve 303, which is fixedly connected with a homing spring 304, is fixedly connected with a bolt movable block 305 at the other end of the homing spring 304, the bolt movable block 305 is movably sleeved in the movable groove 3031, a clamping rotating sleeve 306 is movably sleeved on bolts at two ends of the movable groove 3031, a rotating groove 3062 is formed in one side of the clamping rotating sleeve 306, and a clamping homing groove 3061 is formed in the other side of the clamping rotating sleeve 306, so that a medical motor rotor can be fastened more tightly.
Referring to fig. 5, the bottom end of the clamping rotating sleeve 306 at the opening of the clamping homing groove 3061 is provided with a counterweight end 3063, so as to increase the counterweight and simultaneously solve the problem of misalignment of the center position of the detecting body 3, so that the detecting body 3 does not deviate when rotating.
Referring to fig. 4 to 5, the ratio of the diameter of the opening of the rotating groove 3062 to the diameter of the outer wall of the clamping sleeve 303 is ten to ten, and the clamping sleeve 303 is movably sleeved with the rotor of the medical centrifuge through the groove, so that the clamping sleeve 303 is conveniently clamped by the clamping rotating sleeve 306, and the safety is improved.
Referring to fig. 1 to 3, the ratio of the number of teeth of the rotating gear 302 to the transmission gear of the micro-motor 201 is three to one, and the output value of the voltmeter in the hand-held body 1 is three times amplified in order to prevent the micro-motor 201 from being loaded.
Referring to fig. 1-5, the clamping swivel sleeve 306 rotates one hundred and thirty-five degrees around the latch movable block 305 to facilitate ease of rotation and opening.
The working principle of the invention is as follows:
s1, when calibration of a rotation speed indication error of a medical centrifugal machine is carried out, firstly, the calibration device is used for aligning a through groove of a clamping sleeve 303 with a plug pin of a medical centrifugal machine rotor, so that the plug pin of the medical centrifugal machine rotor is ensured to be positioned at a clamping groove 3032 until the installation is completed;
S2, when the clamping sleeve 303 is installed at the medical centrifuge rotor bolt, the clamping rotary sleeve 306 is pulled downwards at the moment, so that the clamping rotary sleeve 306 rotates and leans against the clamping sleeve 303, the clamping rotary sleeve 306 pulls the homing spring 304 to lift, when the clamping rotary sleeve is lifted to a certain degree, the inner wall of the clamping rotary sleeve 306 is sleeved with the outer wall of the clamping sleeve 303, the medical centrifuge rotor bolt is ensured to be positioned at the clamping homing groove 3061 at the moment, and when the medical centrifuge rotor bolt is positioned at the middle part of the bottom end of the clamping homing groove 3061 at the moment, the clamping rotary sleeve 306 is released;
S3, when the clamping rotary sleeve 306 is released, the bottom end of the clamping homing groove 3061 clamps the medical centrifuge rotor bolt due to shrinkage of the homing spring 304, so that the clamping homing groove 3061 and the rotary gear 302 clamp the medical centrifuge rotor bolt;
S4, the medical centrifugal machine is started to select the rotation speed to be calibrated by an operator holding the handheld main body 1, after the medical centrifugal machine is determined, the medical centrifugal machine starts to rotate, the whole gravity center of the clamping rotary sleeve 306 is in the middle due to the balance influence of the balance weight end 3063, so that the rotation of the medical centrifugal machine is not influenced, when the clamping sleeve 303 rotates, the friction born by the rotation of the clamping sleeve 303 is less due to the bearing 301, the transmission gear of the micro-special motor 201 is driven to rotate along with the rotation of the rotating gear 302, so that the micro-special motor 201 generates current, and the voltmeter in the handheld main body 1 displays the rotation speed through the rotation speed indicator 2 along with the generation of the current of the micro-special motor 201, so that the rotation speed of the medical centrifugal machine is compared with the rotation speed of the medical centrifugal machine;
s5, when the rotation speeds are inconsistent, the medical centrifuge rotor is described as having a problem, if not, the medical centrifuge rotor belongs to the medical centrifuge indication table and has a problem, and maintenance is performed at the moment.
The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;
secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;
Finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (2)
1. A calibration device for measuring an indication error of the rotational speed of a medical centrifuge, comprising a hand-held body (1), characterized in that it further comprises:
Rotational speed table (2): the front surface of the handheld main body (1) is fixedly connected with the back surface of the rotation speed indicator (2);
detection main body (3): the middle part of the bottom end of the handheld main body (1) is connected with the top of the detection main body (3);
The detection main body (3) comprises a rotating gear (302), a micro-special motor (201) is arranged on one side of the rotating gear (302), a transmission gear is fixedly connected to an output shaft of the micro-special motor (201), the rotating gear (302) is meshed with the micro-special motor (201), a clamping sleeve (303) is fixedly connected to the bottom end of the rotating gear (302), a bearing (301) is fixedly sleeved on the outer wall of the clamping sleeve (303) at the bottom end of the rotating gear (302), a fixed groove is formed in the bottom end of the handheld main body (1), the fixed groove at the bottom end of the handheld main body (1) is fixedly connected with the outer wall of the rotating gear (302), a clamping groove (3032) is formed in the bottom end of the clamping sleeve (303) and is movably clamped with a plug pin of a rotor of a medical motor, a voltmeter is arranged in the handheld main body (1), the output numerical value end of the voltmeter in the handheld main body (1) is connected with a rotating speed indicator (2), and the power output end of the micro-special motor (201) is connected with the handheld main body (1) through a wire;
The clamping sleeve (303) is far away from the middle part of one side of the rotating gear (302) and provided with a through groove, the upper end of the middle part of the clamping sleeve (303) is provided with a movable groove (3031), one end of the clamping sleeve (303) which is fixedly connected with a homing spring (304) through the bottom end of the groove, the other end of the homing spring (304) is fixedly connected with a bolt movable block (305), the bolt movable block (305) is movably sleeved in the movable groove (3031), bolts at two ends of the movable groove (3031) are movably sleeved with clamping rotary sleeves (306), one side of the clamping rotary sleeve (306) is provided with a rotary groove (3062), and the other side of the clamping rotary sleeve (306) is provided with a clamping homing groove (3061);
The bottom end of the clamping rotary sleeve (306) at the opening of the clamping homing groove (3061) is provided with a counterweight end (3063);
The ratio of the diameter of the opening of the rotary groove (3062) to the diameter of the outer wall of the clamping sleeve (303) is ten to ten, and the clamping sleeve (303) is movably sleeved with the rotor of the medical centrifugal machine through the groove;
The ratio of the number of teeth of the rotating gear (302) to the transmission gear of the micro-special motor (201) is three to one, and the output value of the voltmeter in the handheld main body (1) is amplified three times.
2. A calibration device for measuring error in a rotational speed indication of a medical centrifuge according to claim 1, wherein: the clamping rotating sleeve (306) rotates one hundred and thirty-five degrees around the bolt movable block (305).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111628036.0A CN114289195B (en) | 2021-12-28 | 2021-12-28 | Calibrating device for measuring rotation speed indication error of medical centrifugal machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111628036.0A CN114289195B (en) | 2021-12-28 | 2021-12-28 | Calibrating device for measuring rotation speed indication error of medical centrifugal machine |
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| CN114289195A CN114289195A (en) | 2022-04-08 |
| CN114289195B true CN114289195B (en) | 2024-05-07 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040105889A (en) * | 2003-06-09 | 2004-12-17 | 주식회사 포스코 | Automatic Supply Apparatus for Bearing Oil of Back Up Roll |
| KR20160132577A (en) * | 2015-05-11 | 2016-11-21 | 육태균 | Auto chucking device for engine valve |
| CN207964865U (en) * | 2018-01-16 | 2018-10-12 | 天津胜鉴计量检测技术服务有限公司 | A kind of test device of centrifuge speed |
| CN208154429U (en) * | 2018-05-28 | 2018-11-27 | 安徽中电晶超照明有限公司 | A kind of water proof lamp promoting plant growth |
| CN110842870A (en) * | 2019-11-18 | 2020-02-28 | 中国南方电网有限责任公司超高压输电公司大理局 | Platform for replacing operation of silicon gel of converter transformer respirator |
| CN212717564U (en) * | 2020-07-14 | 2021-03-16 | 绍兴敏鸿家具有限公司 | Connecting piece for assembled furniture convenient to disassemble and close and fix |
| CN215110038U (en) * | 2021-05-18 | 2021-12-10 | 孔小钢 | Novel automobile-used round pin axle |
-
2021
- 2021-12-28 CN CN202111628036.0A patent/CN114289195B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040105889A (en) * | 2003-06-09 | 2004-12-17 | 주식회사 포스코 | Automatic Supply Apparatus for Bearing Oil of Back Up Roll |
| KR20160132577A (en) * | 2015-05-11 | 2016-11-21 | 육태균 | Auto chucking device for engine valve |
| CN207964865U (en) * | 2018-01-16 | 2018-10-12 | 天津胜鉴计量检测技术服务有限公司 | A kind of test device of centrifuge speed |
| CN208154429U (en) * | 2018-05-28 | 2018-11-27 | 安徽中电晶超照明有限公司 | A kind of water proof lamp promoting plant growth |
| CN110842870A (en) * | 2019-11-18 | 2020-02-28 | 中国南方电网有限责任公司超高压输电公司大理局 | Platform for replacing operation of silicon gel of converter transformer respirator |
| CN212717564U (en) * | 2020-07-14 | 2021-03-16 | 绍兴敏鸿家具有限公司 | Connecting piece for assembled furniture convenient to disassemble and close and fix |
| CN215110038U (en) * | 2021-05-18 | 2021-12-10 | 孔小钢 | Novel automobile-used round pin axle |
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