CN112934033B - Stirring paddle mounting mechanism - Google Patents
Stirring paddle mounting mechanism Download PDFInfo
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- CN112934033B CN112934033B CN202110130218.9A CN202110130218A CN112934033B CN 112934033 B CN112934033 B CN 112934033B CN 202110130218 A CN202110130218 A CN 202110130218A CN 112934033 B CN112934033 B CN 112934033B
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- motor
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- stirring paddle
- stirring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/86—Mixing heads comprising a driven stirrer
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- Chemical Kinetics & Catalysis (AREA)
- Accessories For Mixers (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The application provides a stirring rake installation mechanism to eliminate the axis of rotation of motor and the axiality error of stirring rake, reduce the processing degree of difficulty, avoid the cantilever overlength to cause the oar tip swing of stirring rake, and on the axis of rotation of motor was applied to the inertia when avoiding the stirring rake to rotate, extension motor life. The stirring paddle mounting mechanism comprises a motor assembly and a stirring paddle assembly, wherein the motor assembly comprises a motor fixing seat and a motor fixed on the motor fixing seat; the stirring paddle assembly comprises a stirring paddle fixing seat and a stirring paddle fixed on the stirring paddle fixing seat, the motor fixing seat and the stirring paddle fixing seat are detachably fixed together, and the stirring paddle is superposed with the central axis of the rotating shaft of the motor; the stirring paddle installation mechanism further comprises a connecting piece, two ends of the connecting piece are respectively connected with the rotating shaft of the motor and the stirring paddle, the connecting piece is made of flexible materials, and the rotating shaft of the motor drives the stirring paddle to rotate through the connecting piece.
Description
Technical Field
The application relates to the field of in vitro diagnosis, in particular to a stirring paddle mounting mechanism.
Background
When the full-automatic stirring paddle mounting mechanism works, the mixed liquid of the sample and the reagent in the reaction cup needs to be stirred so as to be uniformly mixed and achieve the purpose of full reaction. Most of stirring devices in the existing stirring paddle mounting mechanism are directly fixed on a rotating shaft of a stirring motor through a coupler or a screw. This just causes agitator motor's axis of rotation cantilever overlength, leads to along with the increase of motor revolution, and the stirring rake amplitude of oscillation also corresponding increases, not only causes the stirring rake to scrape the surface of reaction cup easily, damages reaction cup and stirring rake, still can be because of inertia's increase, with higher speed agitator motor's fatigue wear, shortens agitator motor's life.
Disclosure of Invention
The application provides a stirring rake installation mechanism, the axis of rotation that can eliminate the motor and the axiality error of stirring rake, reduce the processing degree of difficulty, avoid the cantilever overlength to cause the oar tip swing of stirring rake, and the rotational inertia when avoiding the stirring rake to rotate is exerted the axis of rotation of motor on, extension motor life.
According to the embodiment of the application, a stirring paddle mounting mechanism is provided. The stirring paddle mounting mechanism comprises a motor assembly and a stirring paddle assembly, wherein the motor assembly comprises a motor fixing seat and a motor fixed on the motor fixing seat; the stirring paddle assembly comprises a stirring paddle fixing seat and a stirring paddle fixed on the stirring paddle fixing seat, the motor fixing seat and the stirring paddle fixing seat are detachably fixed together, and the stirring paddle is superposed with the central axis of the rotating shaft of the motor;
stirring rake installation mechanism still includes the connecting piece, the both ends of connecting piece respectively with the axis of rotation of motor and the stirring rake is connected, the material of connecting piece is flexible material, just the axis of rotation of motor passes through the connecting piece drives the stirring rake rotates, the stirring rake with the rotational frequency of axis of rotation is the same.
Optionally, the connecting piece is of a tubular structure, the rotating shaft of the motor and the stirring paddle are respectively inserted into two ends of the connecting piece, and the rotating shaft of the motor and the stirring paddle are in interference fit with the connecting piece.
Optionally, a gap is formed between the stirring paddle and the rotating shaft of the motor;
the distance of the gap is 2 mm-5 mm.
Optionally, a metal column is clamped in the connecting piece, the metal column is overlapped with the central axis of the rotating shaft of the motor, a first gap is formed between the metal column and the rotating shaft of the motor, and a second gap is formed between the metal column and the stirring paddle;
the distance between the first gap and the second gap is 2 mm-5 mm.
Optionally, the motor fixing seat is provided with a motor positioning hole and an accommodating cavity communicated with the motor positioning hole along an axial direction of the rotating shaft of the motor, an opening is formed in one end, away from the motor positioning hole, of the accommodating cavity, the stirring paddle fixing seat is fixed to the outer periphery of the opening, the motor is fixed to the outer periphery of the motor positioning hole, and the connecting piece is located in the accommodating cavity.
Optionally, the motor fixing seat is further provided with an observation window along a direction perpendicular to the axial direction of the rotating shaft of the motor, and the observation window is at least communicated with the accommodating cavity.
Optionally, one end of the motor close to the motor fixing seat is provided with a positioning protrusion, and the positioning protrusion is clamped in the motor positioning hole.
Optionally, the motor assembly further includes a pressing plate, one end of the pressing plate is fixed on the motor fixing seat, and the other end of the pressing plate is pressed on one end of the motor far away from the motor fixing seat;
the motor component further comprises a shock insulation cushion, and the shock insulation cushion is clamped between the motor and the pressing plate.
Optionally, the stirring paddle includes a rod portion and a paddle portion, the paddle portion is disposed at one end of the rod portion, and one end of the rod portion, which is far away from the paddle portion, is inserted into the connecting member;
the stirring paddle fixing seat is provided with a mounting hole along the axial direction of the stirring paddle, the stirring paddle component further comprises a first bearing and a fixing sleeve which are sequentially sleeved outside the rod part of the stirring paddle, the rod part can rotate relative to the first bearing, and the fixing sleeve is fixedly connected with the rod part;
the outer peripheral edges of one end of the rod part, which is far away from the paddle part, are provided with limiting steps, the lower surface of the first bearing is abutted to the limiting steps, the lower surface of the fixing sleeve is abutted to the upper surface of the first bearing, and the first bearing and the fixing sleeve are both positioned in the mounting hole.
Optionally, the stirring paddle fixing seat further comprises a second bearing and a limiting sleeve;
the second bearing sleeve is arranged outside the rod part, the rod part can rotate relative to the second bearing, the limiting sleeve is arranged outside the fixed sleeve and is positioned between the first bearing and the second bearing, and the second bearing and the limiting sleeve are both positioned in the mounting hole.
Optionally, stirring rake installation mechanism still includes coupling mechanism, coupling mechanism includes first connecting portion and second connecting portion, first connecting portion set up in on the motor fixing base, the second connecting portion set up in on the stirring rake fixing base, first connecting portion with the cooperation of second connecting portion will the motor fixing base with stirring rake fixing base detachably is together fixed.
The utility model provides a stirring rake installation mechanism, through fixing motor and stirring rake respectively on motor fixing base and stirring rake fixing base, motor fixing base and stirring rake fixing base fixed connection are with the axis of rotation of restriction motor and the fixed of stirring rake relative position, the axis of rotation that connects the motor is made through the connecting piece by flexible material again is connected with the stirring rake, the axis of rotation that can eliminate the motor and the axiality error of stirring rake, reduce the processing degree of difficulty, avoid the cantilever overlength to cause the swing of stirring rake oar point, and the inertia when avoiding the stirring rake to rotate is exerted in the axis of rotation of motor, extension motor life.
It should be noted that, if the axis of rotation of motor and stirring rake are rigid connection, the coaxial requirement to the axis of rotation of motor and stirring rake can be higher, and in this application, the axis of rotation of motor and stirring rake are connected through what flexible material made the connecting piece, that is to say, the axis of rotation of motor and stirring rake are the flexible connection, even when there is a little deviation between the central axis of the axis of rotation of motor and the central axis of stirring rake, also can not influence the rotation between the two too greatly to can eliminate the axis of rotation of motor and the axiality error of stirring rake, reduce the processing degree of difficulty. Moreover, the rotating shaft of the motor and the stirring paddle are in a flexible connection structure, so that the noise during working can be greatly reduced.
Because the axis of rotation of electrode is not direct and the stirring rake is connected in this application, but make the connection of connecting piece through flexible material, thereby the axis of rotation cantilever overlength through having avoided the motor causes the stirring rake tip swing, and on the rotational inertia when avoiding the stirring rake to rotate applyed the axis of rotation of motor, extension motor life.
Drawings
Fig. 1 is a schematic perspective view of a part of a paddle mounting mechanism according to an exemplary embodiment of the present application.
Fig. 2 is a schematic partial front view structure diagram of a paddle mounting mechanism according to an exemplary embodiment of the present application.
Fig. 3 isbase:Sub>A schematic sectional view alongbase:Sub>A-base:Sub>A in fig. 2.
FIG. 4 is a perspective view of the motor assembly and the connecting member of the paddle mounting mechanism according to an exemplary embodiment of the present application.
FIG. 5 is an exploded perspective view of the motor assembly and the connection of the paddle mounting mechanism according to an exemplary embodiment of the present application.
FIG. 6 is a schematic perspective view of a paddle assembly of the paddle mounting mechanism according to an exemplary embodiment of the present application.
FIG. 7 is a schematic perspective exploded view of a paddle assembly of the paddle mounting mechanism of an exemplary embodiment of the present application.
Fig. 8 is a schematic cross-sectional structural view of a paddle assembly of the paddle mounting mechanism according to an exemplary embodiment of the present application.
Fig. 9 is a partially enlarged view of a portion B in fig. 8.
Fig. 10 is a schematic perspective view of a motor fixing base of a stirring paddle mounting mechanism according to an exemplary embodiment of the present application.
Fig. 11 is a front view structural schematic diagram of a motor fixing base of a stirring paddle mounting mechanism according to an exemplary embodiment of the present application.
Fig. 12 is a schematic bottom view of the motor holder of the paddle mounting mechanism according to the exemplary embodiment of the present application.
Fig. 13 is a schematic sectional view in the direction C-C in fig. 12.
Fig. 14 is a perspective view of a paddle holder of the paddle mounting mechanism according to the exemplary embodiment of the present application.
Fig. 15 is a schematic perspective view of a paddle of the paddle mounting mechanism according to the exemplary embodiment of the present application.
FIG. 16 is a schematic perspective view of another angle of the pressure plate of the paddle mounting mechanism according to an exemplary embodiment of the present application.
FIG. 17 is a schematic perspective view of another angle of the motor of the paddle mounting mechanism according to an exemplary embodiment of the present application.
FIG. 18 is a schematic illustration of the assembly of a paddle assembly of the paddle mounting mechanism of an exemplary embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of devices consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "plurality" includes two, and is equivalent to at least two. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
As will be understood with reference to fig. 1 to 17, the present embodiment provides a paddle mounting mechanism. The paddle mounting mechanism includes a motor assembly 100, a paddle assembly 200, and a connector 300.
The motor assembly 100 includes a motor holder 110 and a motor 120 fixed to the motor holder 110. The paddle assembly 200 includes a paddle fixing base 210 and a paddle 220 fixed on the paddle fixing base 210, the motor fixing base 110 is detachably fixed to the paddle fixing base 210, and a central axis O of the paddle 220 coincides with a central axis P of the rotating shaft 121 of the motor 120. The motor assembly 100 is located above the paddle assembly 200 in a vertical direction.
The two ends of the connecting piece 300 are respectively connected with the rotating shaft 121 of the motor 120 and the stirring paddle 220, the connecting piece 300 is made of flexible material, and the rotating shaft 121 of the motor 120 drives the stirring paddle 220 to rotate through the connecting piece 300. Specifically, the material of the connector 300 is silicone or Thermoplastic Rubber, such as TPU (Thermoplastic polyurethane elastomers, chinese name) and TPR (Thermo-Plastic-Rubber materials, TPR is Thermoplastic Rubber material).
Specifically, the connecting member 300 is a tubular structure, the rotating shaft 121 of the motor 120 and the stirring paddle 220 are respectively inserted into two ends of the connecting member 300, and the rotating shaft 121 of the motor 120 and the stirring paddle 220 are both in interference fit with the connecting member 300. Because the rotating shaft 121 of the motor 120 drives the stirring paddle 220 to rotate through the connecting piece 300, the rotating frequency of the stirring paddle 220 is the same as that of the rotating shaft 121, that is, the connecting piece 300 made of the flexible material has sufficient supporting strength along the axial direction of the rotating shaft 121 of the motor 120, so that the stirring paddle 220 can be driven to rotate, and the rotating frequency of the stirring paddle 220 is the same as that of the rotating shaft 121.
A gap 400 is provided between the paddle 220 and the rotating shaft 121 of the motor 120. Preferably, the distance H of the gap 400 is 2mm to 5mm. That is, a gap 400 is provided between the stirring paddle 220 and the rotating shaft 121 of the motor 120 along the axial direction of the rotating shaft 121 of the motor 120, that is, the rotating shaft 121 of the motor 120 is not in contact with the stirring paddle 220, so as to avoid the mutual influence of the two when rotating.
But not limited thereto, in another embodiment, a metal column may be disposed in the connecting member 300, the metal column is clamped in the connecting member 300, a central axis of the metal column coincides with a central axis P of the rotating shaft 121 of the motor 120, a first gap is disposed between the metal column and the rotating shaft 121 of the motor 120, and a second gap is disposed between the metal column and the stirring paddle 220. Preferably, the distance between the first gap and the second gap is 2 mm-5 mm.
The motor fixing base 110 is provided with a motor positioning hole 111 and an accommodating cavity 112 communicated with the motor positioning hole 111 along an axial direction of the rotating shaft 121 of the motor 120, an opening 113 is formed at one end of the accommodating cavity 112 far away from the motor positioning hole 111, the stirring paddle fixing base 210 is fixed on the outer periphery of the opening 113, the motor 120 is fixed on the outer periphery of the motor positioning hole 111, and the connecting member 300 is located in the accommodating cavity 112.
The motor fixing base 110 is further provided with an observation window 114 along a direction perpendicular to an axial direction of the rotating shaft 121 of the motor 120, and the observation window 114 is at least communicated with the accommodating cavity 112 so as to facilitate observing positions of components when the paddle assembly 200 is assembled and disassembled. The observation window 114 may be a partial cut-out of the sidewall of the accommodating cavity 112 and/or the motor positioning hole 111 along the circumferential direction, and the height of the observation window 114 is less than or equal to the sum of the height h1 of the sidewall of the motor positioning hole 111 and the height h2 of the sidewall of the accommodating cavity 112. Preferably, the height of the observation window 114 is equal to the sum of the height h1 of the sidewall of the motor positioning hole 111 and the height h2 of the sidewall of the accommodating cavity 112, so as to facilitate the processing. It should be noted that the outer circumference of the positioning hole 530 after being cut off is larger than 1/2 circle, so as to be able to circumferentially position the positioning protrusion 122 on the motor 120. In order to reduce the machining range of the motor positioning hole 111 with high precision and increase the visible range of the observation window 114, the diameter of the accommodating cavity 112 is larger than that of the motor positioning hole 111.
One end of the motor 120 close to the motor fixing base 110 is provided with a positioning protrusion 122, and the positioning protrusion 122 is clamped in the motor positioning hole 111.
The motor assembly 100 further includes a pressing plate 130 and a vibration isolation pad 140, wherein one end of the pressing plate 130 is fixed on the motor fixing base 110, and the other end is pressed on one end of the motor 120 far away from the motor fixing base 110. In this embodiment, one end of the pressure plate 130 is fixed to the motor fixing base 110 by a fixing screw 150.
The vibration isolation pad 140 is interposed between the motor 120 and the pressing plate 130. By arranging the vibration isolation pad 140 between the pressing plate 130 and the motor 120, the resonance frequency can be changed, and the resonance influence caused by the vibration of the motor 120 can be reduced.
The stirring paddle 220 includes a rod portion 221 and a paddle portion 222, the paddle portion 222 is disposed at one end of the rod portion 221, and one end of the rod portion 221, which is far away from the paddle portion 222, is inserted into the connecting member 300.
The paddle fixing base 210 is provided with a mounting hole 211 along the axial direction of the paddle 220, the paddle assembly 200 further comprises a first bearing 230 and a fixing sleeve 240 which are sequentially sleeved outside the rod part 221 of the paddle 220 along the axial direction of the paddle 220 from the direction close to the paddle part 222 to the direction far away from the paddle part 222, the rod part 221 can rotate relative to the first bearing 230, and the fixing sleeve 240 is fixedly connected with the rod part 221.
The outer circumference of one end of the rod part 221, which is far away from the paddle part 222, is provided with a limit step 223, the lower surface of the first bearing 230 abuts against the limit step 223, and the lower surface of the fixing sleeve 240 abuts against the upper surface of the first bearing 230, so as to assemble the first bearing 230 and the stirring paddle 220 together. And the first bearing 230 and the fixing sleeve 240 are located in the mounting hole 211. The outer circumference of the lower surface of the first bearing 230 abuts on the stopper slope 212 in the mounting hole 211, thereby defining the relative positions of the first bearing 230 and the mounting hole 211.
In this way, the first bearing 230 is arranged to play a good role in fixing the stirring paddle 220, so that the stirring paddle 220 is prevented from shaking in the circumferential direction, and the stability of the stirring paddle 220 during rotation is ensured; and the stirring paddle 220 is fixed on the stirring paddle fixing seat 210 through the matching of the first bearing 230 and the stirring paddle 220 and the matching of the first bearing 230 and the stirring paddle fixing seat 210.
Preferably, the paddle holder 210 further includes a second bearing 250 and a stop collar 260.
The second bearing 250 is sleeved outside the rod part 221, the rod part 221 can rotate relative to the second bearing 250, the position-limiting sleeve 260 is sleeved outside the fixing sleeve 240 and is located between the first bearing 230 and the second bearing 250, and both the second bearing 250 and the position-limiting sleeve 260 are located in the mounting hole 211. Like this, can further play the fixed action to stirring rake 220 through setting up second bearing 250, avoid stirring rake 220 to rock along circumference production, guarantee the stationarity when stirring rake 220 rotates.
Stirring rake installation mechanism still includes coupling mechanism, coupling mechanism includes first connecting portion and second connecting portion, first connecting portion set up on motor fixing base 110, the second connecting portion set up on stirring rake fixing base 210, first connecting portion with the cooperation of second connecting portion is together fixed with motor fixing base 110 and stirring rake fixing base 210 detachably.
Specifically, in this embodiment, the first connecting portion is a positioning pin 510, and one end of the positioning pin 510, which is away from the motor fixing base 110, is provided with a limiting flange 520, and the number is two, and two positioning pins 510 are provided on the surface of the motor fixing base 110 provided with the opening 113 of the accommodating cavity 112, and are arranged along the outer peripheral edge of the opening 113 of the accommodating cavity 112, and 180-degree symmetry is provided on the same circular arc. The second connecting portion is a positioning hole 530, is disposed corresponding to the positioning pin 510, and has two numbers, and a guide groove 540 is disposed at one side of the positioning hole 530, so that the positioning pin 510 can conveniently enter the positioning hole 530. Preferably, the end of the guiding groove 540 away from the positioning hole 530 is a curved surface, so that the stirring paddle 220 needs to be rotated and engaged after being inserted into the connecting member 300, so that the positioning pin 510 enters the positioning hole 530. Thus, the positioning pin 510 is engaged with the positioning hole 530, so that the paddle assembly 200 can be positioned circumferentially, and the mounted paddle assembly 200 is positioned axially up and down by the limiting flange 520. But not limited thereto, in other embodiments, the first connecting portion may be a positioning hole 530, and the second connecting portion is a positioning pin 510; or the first connecting part and the second connecting part are other parts which are matched with each other and can be detachably connected.
When assembling the stirring paddle mounting mechanism of the present embodiment, the rotating shaft 121 of the motor 120 is inserted into the connecting member 300, the positioning protrusion 122 of the motor 120 is engaged with the motor positioning hole 111 of the stirring motor fixing base 110, and the pressing plate 130 is used to fix the motor 120 on the motor fixing base 110.
The stirring paddle 220 penetrates through the stirring paddle fixing seat 210 from bottom to top, then is sequentially installed in the first bearing 230, the fixing sleeve 240, the limiting sleeve 260 and the second bearing 250, and is pressed into the installation hole 211 of the stirring paddle fixing seat 210, so that the stirring paddle assembly 200 is formed.
As shown in fig. 18, the step of installing the assembled paddle assembly 200 into the agitator motor assembly 100 includes: the stirring paddle assembly 200 is rotated to the vertical direction of the connection line of the two positioning pins 510 of the motor fixing base 110, and after the stirring paddle 220 is inserted into the connecting member 300, the stirring paddle fixing base 210 is rotated, so that the positioning holes 530 of the stirring paddle fixing base 210 are completely matched with the positioning pins 510 of the stirring motor fixing base 110.
The steps of detaching the assembled paddle assembly 200 from the agitator motor assembly 100 are: the paddle assembly 200 is rotated to a direction perpendicular to a line connecting the two positioning pins 510 of the positioning pin 510 of the stirring motor fixing base 110, and then the paddle assembly 200 is separated from the connecting member 300 by force.
The stirring rake installation mechanism of this embodiment, through fixing motor 120 and stirring rake 220 respectively on motor fixing base 110 and stirring rake fixing base 210, motor fixing base 110 and stirring rake fixing base 210 fixed connection are with the fixed of the axis of rotation 121 of restriction motor 120 and stirring rake 220 relative position, again through making the axis of rotation 121 that connecting piece 300 connects motor 120 and being connected with stirring rake 220 by flexible material, can eliminate the axis of rotation 121 of motor 120 and the axiality error of stirring rake 220, reduce the processing degree of difficulty, avoid the cantilever overlength to cause the swing of stirring rake 220 oar point, and avoid moment of inertia when stirring rake 220 is rotatory to exert on the axis of rotation 121 of motor 120, extension motor 120 life.
It should be noted that, if the rotating shaft 121 of the motor 120 is rigidly connected to the stirring paddle 220, the requirement for the coaxiality between the rotating shaft 121 of the motor 120 and the stirring paddle 220 is relatively high, and in this application, the rotating shaft 121 of the motor 120 and the stirring paddle 220 are connected by the connecting member 300 made of a flexible material, that is, the rotating shaft 121 of the motor 120 and the stirring paddle 220 are flexibly connected, even if there is a slight deviation between the central axis of the rotating shaft 121 of the motor 120 and the central axis of the stirring paddle 220, the rotation between the two will not be greatly affected, so that the error of the coaxiality between the rotating shaft 121 of the motor 120 and the stirring paddle 220 can be eliminated, and the processing difficulty can be reduced. Moreover, because the rotating shaft 121 of the motor 120 and the stirring paddle 220 are in a flexible connection structure, noise during operation can be greatly reduced.
In this embodiment, since the rotating shaft 121 of the electrode is not directly connected to the stirring paddle 220, but is connected to the connecting member 300 made of a flexible material, the blade tip of the stirring paddle 220 is prevented from swinging due to an excessively long cantilever of the rotating shaft 121 of the motor 120, and the rotational inertia of the stirring paddle 220 during rotation is prevented from being applied to the rotating shaft 121 of the motor 120, thereby prolonging the service life of the motor 120.
The stirring paddle mounting mechanism in the embodiment can be applied to a biochemical analyzer (such as a full-automatic biochemical analyzer) and can also be applied to other instruments.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.
Claims (11)
1. The stirring paddle mounting mechanism is characterized by comprising a motor component and a stirring paddle component, wherein the motor component comprises a motor fixing seat and a motor fixed on the motor fixing seat; the stirring paddle assembly comprises a stirring paddle fixing seat and a stirring paddle fixed on the stirring paddle fixing seat, the motor fixing seat and the stirring paddle fixing seat are detachably fixed together, and the stirring paddle is superposed with the central axis of the rotating shaft of the motor;
stirring rake installation mechanism still includes the connecting piece, the both ends of connecting piece respectively with the axis of rotation of motor and the stirring rake is connected, the material of connecting piece is flexible material, just the axis of rotation of motor passes through the connecting piece drives the stirring rake rotates, the stirring rake with the rotational frequency of axis of rotation is the same, the material of connecting piece is silica gel or thermoplastic rubber.
2. The stirring paddle mounting mechanism as claimed in claim 1, wherein the connecting member is a tubular structure, the rotating shaft of the motor and the stirring paddle are respectively inserted into two ends of the connecting member, and the rotating shaft of the motor and the stirring paddle are in interference fit with the connecting member.
3. The paddle mounting mechanism of claim 2, wherein a gap is provided between the paddle and the rotating shaft of the motor;
the distance of the gap is 2 mm-5 mm.
4. The stirring paddle mounting mechanism according to claim 2, wherein a metal column is clamped in the connecting piece, the metal column is coincident with the central axis of the rotating shaft of the motor, a first gap is formed between the metal column and the rotating shaft of the motor, and a second gap is formed between the metal column and the stirring paddle;
the distance between the first gap and the second gap is 2 mm-5 mm.
5. The paddle mounting mechanism of claim 1, wherein the motor fixing base is provided with a motor positioning hole and an accommodating cavity communicated with the motor positioning hole along an axial direction of the rotating shaft of the motor, an opening is formed at one end of the accommodating cavity far away from the motor positioning hole, the paddle fixing base is fixed on an outer periphery of the opening, the motor is fixed on an outer periphery of the motor positioning hole, and the connecting member is located in the accommodating cavity.
6. The stirring paddle mounting mechanism as claimed in claim 5, wherein the motor fixing base further has an observation window along a direction perpendicular to an axial direction of the rotating shaft of the motor, and the observation window is at least communicated with the accommodating cavity.
7. The paddle mounting mechanism of claim 5, wherein the motor is provided with a positioning protrusion at an end thereof adjacent to the motor mounting base, and the positioning protrusion is engaged with the positioning hole of the motor.
8. The stirring paddle mounting mechanism of any one of claims 1-7, wherein the motor assembly further comprises a pressure plate, one end of the pressure plate is fixed on the motor fixing seat, and the other end of the pressure plate is pressed on one end of the motor, which is far away from the motor fixing seat;
the motor component further comprises a shock insulation pad, and the shock insulation pad is clamped between the motor and the pressing plate.
9. The stirring paddle mounting mechanism as claimed in any one of claims 1 to 7, wherein the stirring paddle comprises a rod portion and a paddle portion, the paddle portion is arranged at one end of the rod portion, and one end of the rod portion, which is far away from the paddle portion, is inserted into the connecting member;
the stirring paddle fixing seat is provided with a mounting hole along the axial direction of the stirring paddle, the stirring paddle assembly further comprises a first bearing and a fixing sleeve which are sequentially sleeved outside the rod part of the stirring paddle from the direction close to the paddle part to the direction far away from the paddle part along the axial direction of the stirring paddle, the rod part can rotate relative to the first bearing, and the fixing sleeve is fixedly connected with the rod part;
the outer peripheral edges of the one end of the rod portion, which is far away from the paddle portion, are provided with limiting steps, the lower surface of the first bearing is abutted to the limiting steps, the lower surface of the fixing sleeve is abutted to the upper surface of the first bearing, and the first bearing and the fixing sleeve are both located in the mounting hole.
10. The paddle mounting mechanism of claim 9, wherein the paddle holder further comprises a second bearing and a stop collar;
the second bearing sleeve is arranged outside the rod part, the rod part can rotate relative to the second bearing, the limiting sleeve is arranged outside the fixed sleeve and is positioned between the first bearing and the second bearing, and the second bearing and the limiting sleeve are both positioned in the mounting hole.
11. The stirring paddle mounting mechanism of any one of claims 1-7, further comprising a connecting mechanism, wherein the connecting mechanism comprises a first connecting portion and a second connecting portion, the first connecting portion is disposed on the motor holder, the second connecting portion is disposed on the stirring paddle holder, and the first connecting portion and the second connecting portion cooperate to detachably fix the motor holder and the stirring paddle holder together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110130218.9A CN112934033B (en) | 2021-01-29 | 2021-01-29 | Stirring paddle mounting mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110130218.9A CN112934033B (en) | 2021-01-29 | 2021-01-29 | Stirring paddle mounting mechanism |
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| CN112934033A CN112934033A (en) | 2021-06-11 |
| CN112934033B true CN112934033B (en) | 2023-02-28 |
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| CN209436883U (en) * | 2018-09-29 | 2019-09-27 | 九阳股份有限公司 | A kind of agitating paddle installs sealed cooking machine |
| CN210278872U (en) * | 2019-07-04 | 2020-04-10 | 中国建筑材料科学研究总院有限公司 | Stirring device |
| CN210645926U (en) * | 2019-08-30 | 2020-06-02 | 上海奥浦迈生物科技有限公司 | Stirring paddle of cantilever liquid stirring machine |
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2021
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| AU7916575A (en) * | 1975-03-17 | 1976-09-23 | Elkem Metals Co. | Method and apparatus for promoting metallurgical reactions in molten metal |
| JP2008036462A (en) * | 2006-08-01 | 2008-02-21 | Ishigaki Co Ltd | Two-stage type flocculation and mixture tank |
| CN204429215U (en) * | 2015-01-22 | 2015-07-01 | 辽宁石化职业技术学院 | A kind of paddle |
| CN107328635A (en) * | 2017-08-31 | 2017-11-07 | 东软安德医疗科技有限公司 | In-vitro diagnosis equipment and its agitating paddle anticollision device, collision-prevention device |
| CN209436883U (en) * | 2018-09-29 | 2019-09-27 | 九阳股份有限公司 | A kind of agitating paddle installs sealed cooking machine |
| CN210278872U (en) * | 2019-07-04 | 2020-04-10 | 中国建筑材料科学研究总院有限公司 | Stirring device |
| CN210645926U (en) * | 2019-08-30 | 2020-06-02 | 上海奥浦迈生物科技有限公司 | Stirring paddle of cantilever liquid stirring machine |
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| CN112934033A (en) | 2021-06-11 |
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