CN211329858U

CN211329858U - Experimental reagent centrifugal device

Info

Publication number: CN211329858U
Application number: CN201922438000.0U
Authority: CN
Inventors: 常婕; 郑一超; 井政
Original assignee: Zhengzhou Leye Biotechnology Co ltd
Current assignee: Zhengzhou Leye Biotechnology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-25
Anticipated expiration: 2029-12-30

Abstract

The utility model provides an experiment reagent centrifugal device relates to the centrifugal equipment field. The experimental reagent centrifugal device comprises a machine shell, a driving motor and a centrifugal cabin which are arranged in the machine shell, and a transmission shaft which is rotatably arranged in the machine shell, wherein the transmission shaft is connected to the lower part of the centrifugal cabin, and is in transmission connection with a main shaft of the motor; the upper portion outer wall of centrifugal chamber is equipped with annular retaining ring, and annular retaining ring arranges with the transmission shaft is coaxial, corresponds annular retaining ring circumference in the casing and has arranged a plurality of rolling bearing structure, and rolling bearing structure includes supporting seat, the rolling element of roll installation on the supporting seat, and the last side and the downside of annular retaining ring support the cooperation with the rolling element roll respectively. The upside part that the transmission shaft was kept away from to the centrifugal cabin receives stable circumference to support, compares and carries out elastic support to the centrifugal cabin in the lower part among the prior art, can play better anti-shake effect to the centrifugal cabin, has guaranteed the equilibrium and the stability of centrifugal cabin when high-speed rotation.

Description

Experimental reagent centrifugal device

Technical Field

The utility model relates to a centrifugal apparatus technical field especially relates to an experiment reagent centrifugal device.

Background

In a biomedical experiment, a suspended substance in a reagent is usually required to be precipitated and separated, and at present, a centrifugal device is generally adopted to settle cells, proteins or other suspended substances in the reagent so as to complete subsequent purification operations.

If the Chinese utility model patent with the publication number of CN208146230U and publication date of 2018.11.27 discloses a breast tooth pulp stem cell room temperature centrifuge, and specifically discloses a breast tooth pulp stem cell room temperature centrifuge comprising a case, wherein the top of the case is fixedly connected with an outer slide rail, the inner part of the outer slide rail is slidably connected with a slide plate, one end of the slide plate is fixedly connected with a push rod, the outer wall of the case is fixedly connected with a flange plate, a heating wire is fixedly connected between the two flange plates, the center of the inner part of the case is fixedly connected with a servo motor, and the output end of the servo motor is fixedly connected with a rotating shaft; the inside fixedly connected with of quick-witted case is located the spring of servo motor both sides, and the top fixedly connected with connecting block of spring, connecting block have the gyro wheel through changeing roller roll connection, and through the supporting role of the supplementary slip of gyro wheel and spring, can guarantee that the centrifuge box is relative balance when centrifugal action, and the cell that just rotational balance prevented in the centrifuge tube spills.

The centrifugal machine in the prior art has the advantages that the spring and the roller are arranged on the lower side of the centrifugal box (also called a centrifugal cabin), so that a stable elastic supporting effect is achieved on the centrifugal cabin in rotation, however, the upper part of the centrifugal cabin, which is far away from the motor in the rotation process, is in a suspended state, the shaking prevention effect achieved by the elastic supporting of the centrifugal cabin is poor in the lower part, and the shaking problem is still easy to occur during high-speed rotation.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, an object of the utility model is to provide an experiment reagent centrifugal device to in solving current centrifugal device, the upper portion in centrifugal cabin is in unsettled state, and it is relatively poor to carry out the anti-shake effect that elastic support played in the lower part to centrifugal cabin, still appears rocking problem easily when rotating at a high speed.

The technical scheme of the experimental reagent centrifugation device of the utility model is that:

the experimental reagent centrifugal device comprises a machine shell, a driving motor and a centrifugal cabin which are arranged in the machine shell, and a transmission shaft which is rotatably arranged in the machine shell, wherein the transmission shaft is connected to the lower part of the centrifugal cabin, and is in transmission connection with a main shaft of the motor;

the upper portion outer wall of centrifugation cabin is equipped with annular retaining ring, annular retaining ring with the transmission shaft is coaxial to be arranged, correspond annular retaining ring circumference in the casing and arranged a plurality of roll bearing structures, roll bearing structure includes supporting seat, the rolling element of roll installation on the supporting seat, the last side and the downside of annular retaining ring support the cooperation with the rolling element roll respectively.

Has the advantages that: the upper portion outer wall at centrifugal chamber is equipped with annular retaining ring, the last side and the downside of annular retaining ring support the cooperation with the rolling element roll respectively, because the annular retaining ring of centrifugal chamber go up, the downside receives the roll supporting role of rolling element jointly, thereby make the centrifugal chamber keep away from the upside part of transmission shaft and receive stable circumference and support, compare and carry out elastic support to the centrifugal chamber in the lower part among the prior art, can play better anti-shake effect to the centrifugal chamber, the equilibrium and the stability of centrifugal chamber when high-speed rotation have been guaranteed.

Further, the supporting seat is a C-shaped seat, the C-shaped seat comprises an upper arm section, a lower arm section and a middle section vertically connected between the upper arm section and the lower arm section, a first rolling body and a second rolling body are respectively installed on opposite side surfaces of the upper arm section and the lower arm section, and a rotation interval for the annular check ring to pass through is reserved between the first rolling body and the second rolling body.

Furthermore, the opposite side surfaces of the upper arm section and the lower arm section are respectively provided with a spherical groove, and the first rolling body and the second rolling body are both spherical balls in rolling fit with the spherical grooves.

Further, the rolling support structures are arranged in a central symmetry manner with respect to the rotation axis of the transmission shaft in at least three numbers.

Furthermore, the annular blocking edge is provided with a triangular cross section which gradually narrows along the radial direction, and the upper annular conical surface and the lower annular conical surface of the annular blocking edge are respectively matched with the rolling elements in an inclined rolling support mode.

Further, the centrifugal cabin comprises a cylindrical barrel body and a bottom cover, the transmission shaft is fixedly connected with the bottom cover, and the annular retainer ring is fixedly connected to the upper edge of the outer barrel wall of the cylindrical barrel body.

Furthermore, the transmission shaft extends into the cylindrical barrel body in a suspending way, and a reinforcing spoke is connected between the extending end of the transmission shaft and the inner barrel wall of the cylindrical barrel body.

Furthermore, a centrifugal bracket can be detachably mounted in the centrifugal cabin, and the centrifugal bracket is provided with a slot for positioning and inserting the reagent tube.

Furthermore, the centrifugal support comprises a pore plate on the upper layer and a positioning plate on the lower layer, the pore plate is provided with inserting holes which are circumferentially arranged at intervals, the positioning plate is provided with positioning grooves which are circumferentially arranged at intervals, the radial distance between each inserting hole and the corresponding rotation axis is smaller than that between each positioning groove and the corresponding rotation axis, and each inserting hole and each positioning groove form a groove position for positioning and inserting the reagent tube.

Drawings

FIG. 1 is a vertical sectional view of an experimental reagent centrifugation apparatus according to embodiment 1 of the present invention;

FIG. 2 is a schematic top view of the experimental reagent centrifugation device of FIG. 1.

In the figure: 1-machine shell, 2-driving motor, 21-first belt pulley, 22-belt, 3-transmission shaft, 31-second belt pulley, 4-centrifugal chamber, 40-annular retainer ring, 41-pore plate, 410-plug hole, 42-positioning plate, 420-positioning groove, 43-reinforcing spoke, 5-rolling supporting structure, 50-C-shaped seat, 51-spherical ball and 6-reagent tube.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The utility model discloses a concrete embodiment 1 of experiment reagent centrifugal device, as shown in fig. 1, fig. 2, experiment reagent centrifugal device includes casing 1, sets up driving motor 2 and the centrifugal cabin 4 in casing 1 to and rotate the transmission shaft 3 of installing in casing 1, transmission shaft 3 is connected in the lower part in centrifugal cabin 4, and transmission shaft 3 is connected with driving motor 2's spindle drive. In this embodiment, the transmission shaft 3 extends in a vertical direction, the transmission shaft 3 is rotatably installed at an inner center position of the casing 1, and a rotary bearing is disposed between the transmission shaft 3 and an inner bottom wall of the casing 1. The driving motor 2 is arranged in the casing 1 and located at the outer side of the centrifugal cabin 4, a first belt pulley 21 is arranged on a main shaft of the driving motor 2, a second belt pulley 31 is arranged on the transmission shaft 3, a belt 22 is sleeved between the first belt pulley 21 and the second belt pulley 31, the driving motor 2 works to transmit rotating power to the transmission shaft 3 through the belt 22, and then the centrifugal cabin 4 is driven to rotate in the circumferential direction around the axis of the transmission shaft 3.

Be equipped with annular retaining ring 40 at the upper portion outer wall of centrifugal chamber 1, annular retaining ring 40 is arranged with the transmission shaft 3 is coaxial, and is specific, and centrifugal chamber 4 includes cylinder barrel and bottom, and the inside of cylinder barrel has the space of placing that holds the reagent pipe, transmission shaft 3 and the bottom fixed connection of centrifugal chamber 1, and annular retaining ring 40 fixed connection is at the outer tube wall upper edge of cylinder barrel. Moreover, the annular blocking edge 40 has a triangular cross section with a gradually narrowing width along the radial direction, i.e. the upper side and the lower side of the annular blocking edge 40 are both annular conical surfaces.

A plurality of rolling support structures 5 are circumferentially arranged in the casing 1 corresponding to the annular retainer ring 40, each rolling support structure 5 comprises a support seat and a rolling body which is installed on the support seat in a rolling manner, and an upper annular conical surface and a lower annular conical surface of the annular retainer ring 40 are respectively matched with the rolling bodies in a rolling supporting manner. The supporting seat is a C-shaped seat 50, wherein the C-shaped seat 50 comprises an upper arm section, a lower arm section and a middle section vertically connected between the upper arm section and the lower arm section, the opposite side surfaces of the upper arm section and the lower arm section are respectively provided with a first rolling body and a second rolling body, a rotating interval for the annular retainer ring 40 to pass through is reserved between the first rolling body and the second rolling body, and the upper annular conical surface and the lower annular conical surface of the annular retainer edge 40 are respectively matched with the first rolling body and the second rolling body in an inclined rolling supporting manner.

Specifically, the opposite side surfaces of the upper arm section and the lower arm section of the C-shaped seat 50 are respectively provided with a spherical groove, and the first rolling element and the second rolling element are both spherical balls 51 in rolling fit with the spherical grooves. Spherical balls 51 are respectively rotatably arranged on opposite side surfaces of an upper arm section and a lower arm section of the C-shaped seat 50, the spherical balls 51 positioned on the upper arm section are in rolling fit with an upper annular conical surface of the annular retainer ring 40, and the spherical balls 51 positioned on the lower arm section are in rolling fit with a lower annular conical surface of the annular retainer ring 40. That is, the annular retainer ring 40 is supported by the oblique rolling of the first rolling element and the second rolling element together, so that the upper part of the centrifugal chamber 4 far away from the transmission shaft 3 is supported by a stable circumference, and compared with the prior art in which the centrifugal chamber is elastically supported at the lower part, the centrifugal chamber can be better prevented from shaking, and the balance and stability of the centrifugal chamber 4 during high-speed rotation are ensured.

In this embodiment, the number of the rolling support structures 5 is four on the outer side of the centrifugal chamber 4 at intervals, and the four rolling support structures 5 are distributed in a central symmetry manner by using the axis of the transmission shaft 3, so that the circumferential support effect of the rolling support structures 5 on the annular retainer ring 40 is ensured. In other embodiments, in order to meet different use requirements, the number of the rolling support structures is not limited to four, three rolling support structures can be uniformly distributed at the outer side of the centrifugal chamber at intervals in the circumferential direction, or more than four rolling support structures are uniformly distributed at the outer side of the centrifugal chamber at intervals in the circumferential direction, and the stable circumferential support effect on the annular retainer ring can be achieved.

In order to facilitate reliably placing reagent pipe 5 in centrifugal cabin 4, still can tear the installation and be equipped with centrifugal support in centrifugal cabin 4 open, centrifugal support has the trench that supplies reagent pipe location to insert to put, as shown in fig. 2, be equipped with four lugs on the internal perisporium of centrifugal cabin 4, it is corresponding, centrifugal support's neighboring is equipped with four trenches, place centrifugal support in centrifugal cabin 4, through the unsmooth cooperation between lug and the trench, both realize centrifugal support demountable installation in centrifugal cabin 4, guarantee again to drive centrifugal support when centrifugal cabin 4 is rotatory and stabilize the rotation. Specifically, the centrifugal support includes the orifice plate 41 on upper strata and the locating plate 42 of lower floor, offers the spliced eye 410 of circumference interval arrangement on the orifice plate 41, is the circumference interval arrangement on the locating plate 42 and has positioning groove 420, and the radial distance of spliced eye 410 and axis of rotation is less than positioning groove 420 and axis of rotation's radial distance, and spliced eye 410 and positioning groove 420 constitute and supply reagent pipe 6 location to insert the trench of putting.

When in use, the reagent tube 6 is inserted into the insertion hole 410 of the hole plate 41 in an inclined downward manner, and the bottom of the reagent tube 6 is supported by the positioning groove 420 of the positioning plate 42. In the rotational centrifugation operation, the reagent vessel 6 is restrained by the well plate 41 and the positioning plate 42 and can be stably held at the insertion position, and the suspended matter in the reagent vessel 6 is settled at the bottom of the reagent vessel 6 by the centrifugal force. In order to improve the pivoted equilibrium of centrifugal chamber 4, transmission shaft 3 upwards overhang is to the inside of the cylinder body of centrifugal chamber 4, and be connected with between the inner wall of the cylinder body of the overhang end of transmission shaft 3 and centrifugal chamber 4 and strengthen spoke 43, it is central symmetric distribution to strengthen spoke 43 about the axis of transmission shaft, and strengthen spoke 43 and the trench staggered arrangement of centrifugal support, prevent to strengthen spoke 43 and interfere the normal operation of putting of inserting of reagent pipe 6, structural strength between centrifugal chamber 4 and transmission shaft 3 has been improved through strengthening spoke 43, the equilibrium and the stability of centrifugal chamber 4 when high-speed rotation have further been improved.

The utility model discloses an other embodiment of experiment reagent centrifugal device, in order to adapt to different user demands, can design into the annular retaining ring annular plate, the last side of annular plate and the first rolling element roll cooperation of roll bearing structure, the downside of annular plate and the second rolling element roll cooperation of roll bearing structure can make the centrifugation cabin keep balance and stable when high-speed rotation equally.

The utility model discloses an other concrete embodiments of experiment reagent centrifugal device, in order to adapt to different user demands, can design into the structure that has the trapezoidal cross section that narrows gradually along radial outside width with annular retaining ring, the last side ring conical surface of annular slab and the first rolling element roll cooperation of roll bearing structure, the lower side ring conical surface of annular slab and roll bearing structure's second rolling element roll cooperation can make centrifugal cabin keep balance and stable when high-speed rotation equally.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. An experimental reagent centrifugation device is characterized by comprising a machine shell, a driving motor and a centrifugation cabin which are arranged in the machine shell, and a transmission shaft which is rotatably arranged in the machine shell, wherein the transmission shaft is connected to the lower part of the centrifugation cabin, and is in transmission connection with a main shaft of the motor;

2. The experimental reagent centrifugation device of claim 1, wherein the supporting seat is a C-shaped seat, the C-shaped seat comprises an upper arm section, a lower arm section and a middle section vertically connected between the upper arm section and the lower arm section, opposite side surfaces of the upper arm section and the lower arm section are respectively provided with a first rolling body and a second rolling body, and a rotation interval for the annular check ring to pass through is reserved between the first rolling body and the second rolling body.

3. The experimental reagent centrifugation device of claim 2, wherein the opposite side surfaces of the upper arm section and the lower arm section are respectively provided with a spherical groove, and the first rolling body and the second rolling body are both spherical balls which are in rolling fit with the spherical grooves.

4. The laboratory reagent centrifugation device according to claim 1, 2 or 3, wherein at least three of the rolling support structures are arranged in a central symmetry with respect to the rotation axis of the drive shaft.

5. The experimental reagent centrifugation device according to claim 1, 2 or 3, wherein the annular rim has a triangular cross section with a gradually narrowing width radially outward, and an upper annular conical surface and a lower annular conical surface of the annular rim are respectively matched with the rolling bodies in an obliquely rolling supporting manner.

6. The experimental reagent centrifugation device of claim 1, wherein the centrifugation chamber comprises a cylindrical barrel body and a bottom cover, the transmission shaft is fixedly connected with the bottom cover, and the annular retainer ring is fixedly connected with the upper edge of the outer barrel wall of the cylindrical barrel body.

7. The experimental reagent centrifugation device of claim 6, wherein the transmission shaft is suspended inside the cylindrical barrel body, and reinforcing spokes are connected between the suspended end of the transmission shaft and the inner barrel wall of the cylindrical barrel body.

8. The experimental reagent centrifugation device of claim 1, wherein a centrifugation rack is detachably mounted in the centrifugation chamber, and the centrifugation rack is provided with a groove for positioning and inserting the reagent tube.

9. The experimental reagent centrifugation device of claim 8, wherein the centrifugation support comprises an upper layer of pore plate and a lower layer of positioning plate, the pore plate is provided with insertion holes circumferentially spaced, the positioning plate is provided with positioning grooves circumferentially spaced, the radial distance between the insertion holes and the rotation axis is smaller than that between the positioning grooves and the rotation axis, and the insertion holes and the positioning grooves form the groove for positioning and inserting the reagent tube.