CN112253607A - Hierarchical formula axis of rotation for centrifuge - Google Patents
Hierarchical formula axis of rotation for centrifuge Download PDFInfo
- Publication number
- CN112253607A CN112253607A CN202011114282.XA CN202011114282A CN112253607A CN 112253607 A CN112253607 A CN 112253607A CN 202011114282 A CN202011114282 A CN 202011114282A CN 112253607 A CN112253607 A CN 112253607A
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- China
- Prior art keywords
- rotating shaft
- fixedly connected
- shaft
- ring
- disc
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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.)
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- 235000019580 granularity Nutrition 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/08—Arrangement or disposition of transmission gearing ; Couplings; Brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
- F16D1/033—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention discloses a graded rotating shaft for a centrifuge, which comprises a first rotating shaft, wherein the right end of the first rotating shaft is fixedly connected with a first connecting shaft disc, the first connecting shaft disc is fixedly connected with a second connecting shaft disc in a matched mode through a screw and a nut, and the right side surface of the second connecting shaft disc is fixedly connected with a second rotating shaft. The invention effectively avoids the inconvenience of installation caused by larger volume in the installation process of the transmission shaft by dividing the whole transmission shaft into three sections for matching connection, provides the structural strength of the graded rotating shaft by matching the positioning convex ring and the positioning concave ring between the first transmission shaft and the second transmission shaft and fastening the screw and the nut, effectively absorbs the mechanical vibration in the rotating process by movably connecting the embedded hole of the second rotating shaft and the pin shaft of the third rotating shaft, and avoids the fatigue damage at the connection part of the rotating shafts at all levels.
Description
Technical Field
The invention relates to the technical field of centrifuge components, in particular to a graded rotating shaft for a centrifuge.
Background
Centrifuges are machines that utilize centrifugal force to separate components of a mixture of liquid and solid particles or liquid and liquid. The centrifuge is mainly used for separating solid particles from liquid in suspension, or separating two liquids which have different densities and are insoluble with each other in emulsion (for example, cream is separated from milk); it can also be used to remove liquids from wet solids, such as by spin drying clothes in a washing machine; the special overspeed tubular separator can also separate gas mixtures with different densities; some settling centrifuges can also grade solid particles according to density or granularity by utilizing the characteristic that solid particles with different densities or granularities have different settling speeds in liquid. The centrifugal machine is a machine which uses centrifugal force to accelerate the separation of different materials to be separated. The centrifugal machine is widely applied to chemical, petroleum, food, pharmacy, ore dressing, coal, water treatment, ships and other departments. The main principle of the filter centrifuge is that the liquid phase in the solid-liquid mixed liquid is accelerated to be thrown out of the rotary drum by the centrifugal force (matched with a proper filter material) generated by the centrifugal rotary drum running at a high speed, and the solid phase is left in the rotary drum, so that the effect of separating the solid from the liquid or the effect of commonly called dehydration is achieved. The main principle of the decanter centrifuge is to accelerate the sedimentation velocity of components (solid phase or liquid phase) with different specific gravities in the mixed liquid by the strong centrifugal force generated by the high-speed rotation of the rotor, and separate the substances with different sedimentation coefficients and buoyancy densities in the sample. The centrifugal machine is widely applied to departments of mineral separation, coal, water treatment, ships and the like.
The axis of rotation that present centrifuge adopted has higher stability and sufficient structural strength when ensureing to rotate, designs for an integral more, and not only the production degree of difficulty is great, and when the installation moreover because the volume is great, the installation of being not convenient for is longer to length, and has adopted hierarchical formula package assembly, mechanical vibration can appear again and cause the unstable condition of connection structure. In order to solve the above problems, a new stepped rotary shaft is proposed.
Disclosure of Invention
The present invention is directed to a stepped rotating shaft for a centrifugal machine, which solves the above problems of the related art.
In order to solve the technical problems, the invention provides the following technical scheme: the right end of the first rotating shaft is fixedly connected with a first connecting shaft disc, the first connecting shaft disc is fixedly connected with a second connecting shaft disc through matching of a screw and a nut, the right side face of the second connecting shaft disc is fixedly connected with a second rotating shaft, the right end of the second rotating shaft is fixedly connected with a first step ring, and a position, extending to the inner coaxial line of the second rotating shaft, of the right side face of the first step ring is provided with an embedded hole;
the pin shaft is movably connected to the second rotating shaft through the embedding hole, the second step ring is fixedly connected to the right end of the pin shaft, the third rotating shaft is fixedly connected to the right side face of the second step ring, the tail end connecting ring is fixedly connected to the right end of the third rotating shaft, and the pin hole is formed in the position, extending to the inner coaxial line of the third rotating shaft, of the right side face of the tail end connecting ring.
The left end of the first rotating shaft is fixedly connected with a head end connecting ring, a plurality of positioning holes are formed in the left end face and the right end face of the head end connecting ring, and the positioning holes are evenly and annularly arranged on the left end face and the right end face of the head end connecting ring.
A plurality of bolt connecting holes with the same quantity are formed in the left side face and the right side face of the first connecting shaft disc and the second connecting shaft disc, and the bolt connecting holes are evenly and annularly arranged in a one-to-one correspondence mode.
The right side face of the first connecting shaft disc is fixedly connected with a positioning convex ring, and the left side face of the second connecting shaft disc is provided with a positioning concave ring.
A first annular groove is formed in the side face of the first rotating shaft, and a second annular groove is formed in the side face of the second rotating shaft.
The left side surface and the right side surface of the tail end connecting ring are provided with a plurality of positioning holes and are uniformly and annularly arranged on the left side surface and the right side surface of the tail end connecting ring.
The number of the screws and the nuts is provided with a plurality of groups, and the screws and the nuts penetrate through the bolt connecting holes to be matched one by one.
The right end of the third rotating shaft is fixedly connected with the output end of the gearbox through a pin hole and a positioning hole.
Compared with the prior art, the invention has the following beneficial effects: the whole transmission shaft is divided into three sections to be matched and connected, so that the inconvenience in installation caused by large volume in the installation process of the transmission shaft is effectively avoided;
the positioning convex ring and the positioning concave ring between the first transmission shaft and the second transmission shaft are matched, and the fastening action of the screw and the nut is added, so that the structural strength of the graded rotating shaft is provided;
through the movable connection between the nested hole of the second rotating shaft and the pin shaft of the third rotating shaft, the mechanical vibration in the rotating process is effectively absorbed, and the fatigue damage of the connecting part of each stage of rotating shaft is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of an overall structure of a stepped rotating shaft for a centrifuge according to the present invention;
fig. 2 is a front view of a stepped rotary shaft for a centrifuge according to the present invention;
fig. 3 is a sectional view a-a of fig. 2 of a stepped rotary shaft for a centrifuge according to the present invention;
fig. 4 is a right side view of a stepped rotary shaft for a centrifuge according to the present invention;
fig. 5 is a left side view of a stepped rotary shaft for a centrifuge according to the present invention;
in the figure: 1. a head end connecting ring; 2. a first rotating shaft; 3. a first stub shaft disk; 4. a second coupling disc; 5. a second rotating shaft; 6. a first step ring; 7. a second step ring; 8. a third rotating shaft; 9. a tail end connecting ring; 10. embedding a sleeve hole; 11. a nut; 12. a screw; 13. a first annular groove; 14. a second annular groove; 15. a pin shaft; 16. positioning the convex ring; 17. positioning the concave ring; 18. connecting holes of bolts; 19. a pin hole; 20. and (7) positioning the holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides the following technical solutions: comprises a first rotating shaft 2, a first connecting shaft disc 3 is fixedly connected at the right end of the first rotating shaft 2, a second connecting shaft disc 4 is fixedly connected at the left side and the right side of the first connecting shaft disc 3 through the matching of a screw 12 and a nut 11, a plurality of bolt connecting holes 18 with the same quantity are arranged on the left side and the right side of the first connecting shaft disc 3 and the second connecting shaft disc 4, the positions are arranged in a uniform annular shape in a one-to-one correspondence manner, a plurality of groups of screws 12 and nuts 11 are arranged and matched one by one through the bolt connecting holes 18 for ensuring the structural strength of the connection part of the graded rotating shaft, a positioning convex ring 16 is fixedly connected at the right side of the first connecting shaft disc 3, a positioning concave ring 17 is arranged at the left side of the second connecting shaft disc 4, the positioning is conveniently realized when the second rotating shaft 5 is installed towards the end face of the first rotating shaft 2, a second rotating shaft 5 is fixedly connected at the right side of the second connecting shaft disc, the right flank of first step ring 6 and the position that extends to the inside coaxial line of second axis of rotation 5 have seted up nested hole 10, second axis of rotation 5 has round pin axle 15 through nested hole 10 swing joint, cooperation through activity around can be connected, absorb mechanical vibration when hierarchical axis of rotation rotates, thereby improve the life of hierarchical axis of rotation, the right-hand member fixedly connected with second step ring 7 of round pin axle 15, the right flank fixedly connected with third axis of rotation 8 of second step ring 7, the right-hand member fixedly connected with tail-end go-between 9 of third axis of rotation 8, the pinhole 19 has been seted up to the right flank of tail-end go-between 9 and the position that extends to the inside coaxial line of third axis of rotation 8, the right-hand member of third axis of rotation 8 passes through pinhole 19 and the output fixed connection of locating hole 20 and gearbox, be used for acquireing rotary power.
The working principle of the invention is as follows: before use, the first rotating shaft 2 is installed in a machine shell through a bearing, the second rotating shaft 5 is fixed at the tail part of the first rotating shaft 2 through the positioning of a positioning convex ring 16 and the matching action of a nut 11 and a screw 12 and is fixed in the machine shell through the bearing, finally the third rotating shaft 8 is inserted into a nesting hole 10 of the second rotating shaft 5 through a pin shaft 15, and the position of the third rotating shaft 8 is limited through the bearing to realize the installation and connection of the whole section of extension-type rotating shaft; when the transmission device works, the starting motor drives the three sections of rotating shafts in sequence through the gearbox, and stable and low-noise transmission work can be realized.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A hierarchical formula axis of rotation for centrifugal machine, includes first axis of rotation (2), its characterized in that: the right end of the first rotating shaft (2) is fixedly connected with a first connecting shaft disc (3), the first connecting shaft disc (3) is fixedly connected with a second connecting shaft disc (4) in a matched mode through a screw (12) and a nut (11), the right side face of the second connecting shaft disc (4) is fixedly connected with a second rotating shaft (5), the right end of the second rotating shaft (5) is fixedly connected with a first step ring (6), and a position, extending to the inner coaxial line of the second rotating shaft (5), of the right side face of the first step ring (6) is provided with an embedding hole (10);
second axis of rotation (5) have round pin axle (15) through inlaying cover hole (10) swing joint, the right-hand member fixedly connected with second step ring (7) of round pin axle (15), the right flank fixedly connected with third axis of rotation (8) of second step ring (7), the right-hand member fixedly connected with tail-end go-between (9) of third axis of rotation (8), pinhole (19) have been seted up to the right flank of tail-end go-between (9) and the position that extends to the inside coaxial line of third axis of rotation (8).
2. The stepped rotary shaft for a centrifuge according to claim 1, wherein: the left end of the first rotating shaft (2) is fixedly connected with a head end connecting ring (1), a plurality of positioning holes (20) are formed in the left end face and the right end face of the head end connecting ring (1), and the positioning holes and the left end face and the right end face of the head end connecting ring (1) are uniformly and annularly arranged.
3. The stepped rotary shaft for a centrifuge according to claim 1, wherein: a plurality of bolt connecting holes (18) with the same quantity are formed in the left side face and the right side face of the first connecting shaft disc (3) and the second connecting shaft disc (4), and the bolt connecting holes are uniformly and annularly arranged in a one-to-one correspondence mode.
4. The stepped rotary shaft for a centrifuge according to claim 1, wherein: the right side face of the first connecting shaft disc (3) is fixedly connected with a positioning convex ring (16), and the left side face of the second connecting shaft disc (4) is provided with a positioning concave ring (17).
5. The stepped rotary shaft for a centrifuge according to claim 1, wherein: a first annular groove (13) is formed in the side face of the first rotating shaft (2), and a second annular groove (14) is formed in the side face of the second rotating shaft (5).
6. The stepped rotary shaft for a centrifuge according to claim 1, wherein: the left side surface and the right side surface of the tail end connecting ring (9) are provided with a plurality of positioning holes (20), and the positioning holes are uniformly and annularly distributed on the left side surface and the right side surface of the tail end connecting ring (9).
7. The stepped rotary shaft for a centrifuge according to claim 1, wherein: the number of the screws (12) and the nuts (11) is provided with a plurality of groups, and the screws penetrate through the bolt connecting holes (18) to be matched one by one.
8. The stepped rotary shaft for a centrifuge according to claim 1, wherein: the right end of the third rotating shaft (8) is fixedly connected with the output end of the gearbox through a pin hole (19) and a positioning hole (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011114282.XA CN112253607A (en) | 2020-10-19 | 2020-10-19 | Hierarchical formula axis of rotation for centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011114282.XA CN112253607A (en) | 2020-10-19 | 2020-10-19 | Hierarchical formula axis of rotation for centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112253607A true CN112253607A (en) | 2021-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011114282.XA Pending CN112253607A (en) | 2020-10-19 | 2020-10-19 | Hierarchical formula axis of rotation for centrifuge |
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| Country | Link |
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| CN (1) | CN112253607A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120132737A1 (en) * | 2010-11-30 | 2012-05-31 | Bernard Pusheck | Bearing retainer assembly |
| CN205453393U (en) * | 2016-02-01 | 2016-08-10 | 浙江露通机电有限公司 | Connection structure of motor shaft and derailleur axle |
| CN207782101U (en) * | 2018-01-08 | 2018-08-28 | 中航富士达科技股份有限公司 | A kind of RF coaxial rotary connector of rotatable positioning |
| CN208858879U (en) * | 2018-09-30 | 2019-05-14 | 浙江跃鑫机械制造股份有限公司 | A kind of intracorporal main shaft stabilizing mechanism of transmission case |
| CN211246982U (en) * | 2019-12-05 | 2020-08-14 | 上海增华电子科技有限公司 | Hierarchical formula rotating shaft subassembly for centrifuge |
-
2020
- 2020-10-19 CN CN202011114282.XA patent/CN112253607A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120132737A1 (en) * | 2010-11-30 | 2012-05-31 | Bernard Pusheck | Bearing retainer assembly |
| CN205453393U (en) * | 2016-02-01 | 2016-08-10 | 浙江露通机电有限公司 | Connection structure of motor shaft and derailleur axle |
| CN207782101U (en) * | 2018-01-08 | 2018-08-28 | 中航富士达科技股份有限公司 | A kind of RF coaxial rotary connector of rotatable positioning |
| CN208858879U (en) * | 2018-09-30 | 2019-05-14 | 浙江跃鑫机械制造股份有限公司 | A kind of intracorporal main shaft stabilizing mechanism of transmission case |
| CN211246982U (en) * | 2019-12-05 | 2020-08-14 | 上海增华电子科技有限公司 | Hierarchical formula rotating shaft subassembly for centrifuge |
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Application publication date: 20210122 |