CN209735821U - laboratory is with high rotational speed centrifuge - Google Patents
laboratory is with high rotational speed centrifuge Download PDFInfo
- Publication number
- CN209735821U CN209735821U CN201920432745.3U CN201920432745U CN209735821U CN 209735821 U CN209735821 U CN 209735821U CN 201920432745 U CN201920432745 U CN 201920432745U CN 209735821 U CN209735821 U CN 209735821U
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- CN
- China
- Prior art keywords
- fixed
- driving motor
- shaft
- sliding seat
- speed sensor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 230000008878 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Centrifugal Separators (AREA)
Abstract
The utility model relates to a centrifuge technical field, concretely relates to high rotational speed centrifuge is used in laboratory, including centrifuge's driving motor and speed sensor, still include shaft coupling, fixed axle, fixed cover, conical shaft, cylindric lock, jump ring. The utility model discloses set up the awl axle, be connected through the awl axle with the rotor on the outside centrifuge, replace among the prior art, be connected driving motor's pivot and rotor for when changing the operation, only need to change the awl axle and need not dismantle driving motor again, the cost is reduced has improved change efficiency, set up the shaft coupling in addition, the fixed axle, fixed cover, cylindric lock, jump ring, be connected the awl axle with driving motor's pivot, and can guarantee the axiality of pivot on awl axle and the driving motor, make things convenient for the change of awl axle simultaneously.
Description
Technical Field
the utility model relates to a centrifuge technical field, concretely relates to high rotational speed centrifuge is used in laboratory.
Background
Centrifuges are classified into laboratory centrifuges and industrial centrifuges, and laboratory centrifuges are apparatuses that separate substances of different densities and different particle sizes in suspensions or emulsions by using centrifugal force generated by a rotating rotor, or perform analysis while separating the substances. The application field is wide, and the device is suitable for laboratories of chemical industry, food, pharmacy, environmental protection, mining, teaching and the like.
the rotating shaft of a driving motor on the existing laboratory high-speed centrifuge is directly connected with a rotor on the centrifuge, the upper end of the rotating shaft is a conical section, a conical groove matched with the conical section is arranged on the rotor, coaxiality deviation is reduced through conical fit, the rotating speed of the centrifuge is higher and is often higher than 15000rpm, so that the rotating shaft is quickly abraded, the abrasion needs to be replaced after abrasion, and noise and vibration are generated during the work of the centrifuge, but in the long-term one-line work of the inventor, the inventor finds that when the rotating shaft of the driving motor is replaced, the rotor on the driving motor is usually required to be disassembled, then parts such as a bearing, a winding and the like on the rotor are disassembled, the rotating shaft can be disassembled and replaced, in the process, copper wires on the winding are easily damaged, the whole disassembling process consumes longer time, the phenomenon is often generated, and in addition, the conical precision on, the cost is high when the machine is machined, so that the replacement cost is increased, and the production efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the problem that exists among the prior art, provide a high rotational speed centrifuge is used in laboratory, it can realize through setting up the awl axle for need not dismantle driving motor again, improved production efficiency, the cost is reduced.
In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:
The utility model provides a high rotational speed centrifuge is used in laboratory, includes centrifuge's driving motor and locate on the driving motor shell, annular speed sensor, the last mesopore of speed sensor is worn out in driving motor's pivot, still includes:
the coupler is sleeved on the rotating shaft;
the fixed shaft is inserted on the coupler and is coaxial with the rotating shaft;
The fixing sleeve is coaxially and fixedly connected to the fixing shaft;
the conical shafts are arranged on the fixing sleeves, mounting holes for inserting and combining the cylindrical sections of the conical shafts are formed in the corresponding fixing sleeves, and the conical shafts are connected with the fixing sleeves through splines;
The cylindrical pin horizontally penetrates through the fixed sleeve and can freely slide, and a jack for the cylindrical pin to freely pass through is formed in the corresponding conical shaft;
the clamp springs are arranged and connected to two ends, penetrating out of the fixing sleeve, of the cylindrical pin respectively, and the corresponding fixing sleeve is provided with a mounting groove for mounting the clamp springs.
Furthermore, the clearance between the jack and the cylindrical pin is set to be 0.005-0.008 mm.
furthermore, the fixed shaft and the fixed sleeve are of an integrated structure.
further, the device also comprises a connecting device used for connecting the rotating speed sensor to the shell of the driving motor.
Further, connecting device includes the mounting panel, the horizontal rigid coupling of mounting panel is on driving motor, and it has the confession to open on it the through-hole that driving motor's pivot is passed through freely, the mounting panel is equipped with the fixing base in the radial one side of pivot, and its opposite side is equipped with the sliding seat, it has sunken V-arrangement groove to open on fixing base, the sliding seat, rotational speed sensor global offsets with V-arrangement inslot wall, just the V-arrangement inslot roof supports and leans on the rotational speed sensor top surface, the sliding seat bottom surface offsets and can freely slide with the mounting panel top surface, and it slides on the mounting panel by drive unit drive it.
Further, the driving unit comprises a fixed block, a screw rod penetrating through the fixed block and connected with the fixed block through threads is horizontally arranged on the fixed block, and one end, penetrating out of the fixed block, of the screw rod is rotatably connected with the sliding seat.
furthermore, a clamping block is coaxially arranged on the screw rod, and a clamping groove which is used for the clamping block to be embedded and clamped and can rotate freely is formed in the corresponding sliding seat.
The utility model has the advantages that: the conical shaft is arranged and is connected with the rotor on the external centrifugal machine through the conical shaft, the prior art is replaced, the rotating shaft of the driving motor is connected with the rotor, so that only the conical shaft needs to be replaced without disassembling the driving motor during replacement operation, the cost is reduced, the replacement efficiency is improved, in addition, a coupler, a fixed shaft, a fixed sleeve, a cylindrical pin and a snap spring are arranged, the conical shaft is connected with the rotating shaft of the driving motor, the coaxiality of the conical shaft and the rotating shaft on the driving motor can be ensured, meanwhile, the conical shaft is convenient to replace, a connecting device is arranged, a sliding seat is driven to horizontally slide on a mounting plate through the rotation of a lead screw, the peripheral surface and the top surface of the rotating speed sensor are tightly pressed through the inner walls of V-shaped grooves on a fixed seat and the sliding seat, the rotating speed sensor can be rapidly mounted and dismounted, the prior art is, the replacement efficiency is improved, and the working efficiency is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic perspective view of the middle cone shaft of the present invention;
Fig. 3 is a schematic perspective view of the sliding seat of the present invention;
in the drawings, the reference numerals denote the following components:
1-driving motor, 2-rotating speed sensor, 3-rotating shaft, 4-coupler, 5-fixed shaft, 6-fixed sleeve, 7-conical shaft, 8-mounting hole, 9-cylindrical pin, 10-jack, 11-snap spring, 12-mounting groove, 13-mounting plate, 14-fixed seat, 15-sliding seat, 16-V-shaped groove, 17-fixed block, 18-screw rod, 19-clamping block, 20-clamping groove and 21-tool withdrawal groove.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-3, a high-speed centrifuge for laboratory use includes a driving motor 1 of the centrifuge and an annular speed sensor 2 disposed on a housing of the driving motor 1, a rotating shaft 3 of the driving motor 1 penetrates through a middle hole of the speed sensor 2, and further includes:
The coupler 4 is sleeved on the rotating shaft 3, is a common component in the mechanical field and is the prior art, and the coupler is not described herein;
The fixed shaft 5 is inserted on the coupler 4 and is coaxial with the rotating shaft 3;
The fixing sleeve 6 is coaxially and fixedly connected to the fixing shaft 5;
The conical shaft 7 is arranged on the fixed sleeve 6, a mounting hole 8 for inserting the cylindrical section of the conical shaft 7 is formed in the corresponding fixed sleeve 6, the conical shaft 7 is connected with the fixed sleeve 6 through a spline, and further, a tool withdrawal groove 21 is formed in the hole bottom of the mounting hole 8, so that the flatness of the bottom of the mounting hole 8 is good, and the conical shaft 7 can be conveniently inserted;
The cylindrical pin 9 horizontally penetrates through the fixing sleeve 6 and can freely slide, the corresponding conical shaft 7 is provided with an insertion hole 10 through which the cylindrical pin 9 freely passes, and the conical shaft 7 is connected with the fixing sleeve 6 through a spline, so that the conical shaft 7 is uniformly maintained at all positions by the shearing stress of the fixing sleeve 6, meanwhile, the shearing stress on the cylindrical pin 9 is reduced, and the service life of the cylindrical pin is prolonged;
The number of the clamp springs 11 is two, the two clamp springs 11 are respectively connected to two ends of the cylindrical pin 9 penetrating through the fixing sleeve 6, and correspondingly, the fixing sleeve 6 is provided with an installation groove 12 for installing the clamp springs 11.
The clearance between the jack 10 and the cylindrical pin 9 is set to be 0.005-0.008mm, so that the cylindrical pin 9 is tightly matched in the jack 10 in an inserting manner, the shearing force of the conical shaft 7 to the cylindrical pin 9 is reduced when the centrifugal machine runs at high speed, the service life of the cylindrical pin 9 is prolonged, and the abrasion of the conical shaft 7 is reduced.
the fixed shaft 5 and the fixed sleeve 6 are of an integrated structure, so that the installation and the disassembly are convenient, and the coaxiality precision of the fixed shaft 5 and the fixed sleeve 6 can be ensured.
the device also comprises a connecting device used for connecting the rotating speed sensor 2 to the shell of the driving motor 1.
Connecting device includes mounting panel 13, the horizontal rigid coupling of mounting panel 13 is on driving motor 1, and it has the confession to open on it the through-hole that 3 freedom of pivot of driving motor 1 pass through, mounting panel 13 is equipped with fixing base 14 in 3 radial one sides of pivot, and its opposite side is equipped with sliding seat 15, it has sunken V-arrangement groove 16 to open on fixing base 14, the sliding seat 15, rotational speed sensor 2 global offsets with 16 inner walls in the V-arrangement groove, just 16 roof in the V-arrangement groove supports and leans on 2 top surfaces of rotational speed sensor, 15 bottom surfaces of sliding seat offset and can the free slip with 13 top surfaces of mounting panel, and it is driven its by drive unit and slides on mounting panel 13.
the driving unit comprises a fixed block 17, a screw rod 18 penetrating through the fixed block 17 and in threaded connection with the fixed block 17 is horizontally arranged on the fixed block 17, and one end of the screw rod 18 penetrating through the fixed block 17 is rotatably connected with the sliding seat 15.
The screw rod 18 is coaxially provided with a clamping block 19, the corresponding sliding seat 15 is provided with a clamping groove 20 which is used for the clamping block 19 to be embedded and clamped and can freely rotate, and the screw rod 18 is rotatably connected to the sliding seat 15 through the rotation of the clamping block 19 in the clamping groove 20.
The utility model discloses when using: when the rotating speed sensor is installed, firstly, the middle hole on the rotating speed sensor passes through the rotating shaft on the driving motor, and is placed on the mounting plate, then the screw rod is rotated to drive the sliding seat to horizontally move on the mounting plate and abut against the rotating speed sensor to abut against the fixed seat, the rotating speed sensor is arranged on the driving motor through the abutting of the inner wall and the top wall of the V-shaped groove on the fixed seat and the sliding seat, and then the conical shaft is arranged, firstly, the shaft coupling is sleeved on the rotating shaft of the driving motor, then, the fixed shaft is inserted on the other end of the shaft coupling, and then, the conical shaft is connected with the fixed sleeve through a spline, and the clamp spring is inserted into the mounting hole of the fixing sleeve, the cylindrical pin penetrates through the fixing sleeve and is inserted into the insertion hole on the conical shaft, and finally the clamp spring is connected to two ends of the cylindrical pin.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides a high rotational speed centrifuge is used in laboratory, includes centrifuge's driving motor (1) and locate on driving motor (1) shell, annular speed sensor (2), mesopore on speed sensor (2) is worn out in pivot (3) of driving motor (1), its characterized in that still includes:
The coupler (4), the said coupler (4) is fitted on spindle (3);
The fixed shaft (5) is inserted on the coupler (4) and is coaxial with the rotating shaft (3);
the fixing sleeve (6), the said fixing sleeve (6) is fixed on fixed axis (5) coaxially;
The conical shaft (7) is arranged on the fixed sleeve (6), a mounting hole (8) for inserting and combining a cylindrical section of the conical shaft (7) is formed in the corresponding fixed sleeve (6), and the conical shaft (7) is connected with the fixed sleeve (6) through a spline;
the cylindrical pin (9) horizontally penetrates through the fixed sleeve (6) and can freely slide, and a jack (10) for the cylindrical pin (9) to freely pass through is formed in the corresponding conical shaft (7);
The clamping springs (11) are arranged, the two clamping springs (11) are respectively connected to the two ends, penetrating out of the fixing sleeve (6), of the cylindrical pin (9), and correspondingly, the fixing sleeve (6) is provided with a mounting groove (12) for the clamping springs (11) to be mounted.
2. A laboratory high speed centrifuge according to claim 1, characterised in that the clearance between the receptacles (10) and the pins (9) is set to 0.005-0.008 mm.
3. a laboratory high speed centrifuge according to claim 1, characterized in that the stationary shaft (5) and the stationary sleeve (6) are of one-piece construction.
4. a laboratory high speed centrifuge according to claim 1, characterized by further comprising connecting means for connecting the speed sensor (2) to the housing of the drive motor (1).
5. The laboratory high speed centrifuge of claim 4, the connecting device comprises a mounting plate (13), the mounting plate (13) is horizontally and fixedly connected on the driving motor (1), a through hole for the free passing of the rotating shaft (3) of the driving motor (1) is arranged on the upper part, a fixed seat (14) is arranged on one side of the mounting plate (13) in the radial direction of the rotating shaft (3), the other side is provided with a sliding seat (15), the fixed seat (14) and the sliding seat (15) are provided with a concave V-shaped groove (16), the peripheral surface of the rotating speed sensor (2) is pressed against the inner wall of the V-shaped groove (16), and the top wall of the V-shaped groove (16) is abutted against the top surface of the rotating speed sensor (2), the bottom surface of the sliding seat (15) is abutted against the top surface of the mounting plate (13) and can freely slide, and the sliding seat is driven by the driving unit to slide on the mounting plate (13).
6. the laboratory high-speed centrifuge according to claim 5, wherein the driving unit comprises a fixed block (17), a screw rod (18) penetrating through the fixed block (17) and in threaded connection with the fixed block is horizontally arranged on the fixed block (17), and one end of the screw rod (18) penetrating through the fixed block (17) is rotatably connected with the sliding seat (15).
7. The laboratory high-speed centrifuge as claimed in claim 6, wherein the screw (18) is coaxially provided with a clamping block (19), and the corresponding sliding seat (15) is provided with a clamping groove (20) which is used for clamping the clamping block (19) and can rotate freely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920432745.3U CN209735821U (en) | 2019-03-29 | 2019-03-29 | laboratory is with high rotational speed centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920432745.3U CN209735821U (en) | 2019-03-29 | 2019-03-29 | laboratory is with high rotational speed centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209735821U true CN209735821U (en) | 2019-12-06 |
Family
ID=68719448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920432745.3U Expired - Fee Related CN209735821U (en) | 2019-03-29 | 2019-03-29 | laboratory is with high rotational speed centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209735821U (en) |
-
2019
- 2019-03-29 CN CN201920432745.3U patent/CN209735821U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191206 |