CN107497612A - A kind of centrifuge rotating speed overtravel mechanism in short-term - Google Patents
A kind of centrifuge rotating speed overtravel mechanism in short-term Download PDFInfo
- Publication number
- CN107497612A CN107497612A CN201710920221.4A CN201710920221A CN107497612A CN 107497612 A CN107497612 A CN 107497612A CN 201710920221 A CN201710920221 A CN 201710920221A CN 107497612 A CN107497612 A CN 107497612A
- Authority
- CN
- China
- Prior art keywords
- junction piece
- input shaft
- bearing
- output shaft
- axle bed
- Prior art date
- 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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Classifications
-
- 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
-
- 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
- B04B9/10—Control of the drive; Speed regulating
Landscapes
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention discloses a kind of centrifuge rotating speed overtravel mechanism in short-term,Including input shaft,First axle bed,Second axle bed,Junction piece,Spring,Bearing holder (housing, cover),Bearing and output shaft,The input shaft is provided with rectangular opening,The input shaft and the first axle bed are rotatablely connected,The output shaft and the second axle bed are rotatablely connected,Connecting pole is arranged with the junction piece,The junction piece lower end is provided with rectangular pin,The rectangular pin is slidably connected with rectangular opening,The junction piece outer wall is provided with friction plate,The junction piece is provided with two,Connecting pole clasp joint on the spring one end and a junction piece,Other end and the connecting pole clasp joint on another junction piece,The bearing holder (housing, cover) connects with interference fit inside output shaft,The bearing is arranged in bearing holder (housing, cover),The end of input shaft is connected with bearing inner race,Output shaft end is provided with rotary sleeve,And rotary sleeve wraps junction piece,Realize that the main shaft short time surpassed distance of centrifuge accelerates,It ensure that by the quality of centrifugation material.
Description
Technical field
The invention belongs to Centrifuge Techniques field, specifically, the present invention relates to a kind of centrifuge rotating speed surpassed distance in short-term
Mechanism.
Background technology
The starter of present centrifuge mainly changes the rotating speed of main shaft to reach certain centrifugal speed, but is directed to
Some short time need ultracentrifugal material, such as biological cell is, it is necessary to which centrifuge reaches very high centrifugation in a short time
Speed, to meet application demand, ensure to be centrifuged the quality of material, but at present because centrifuge Acceleration of starting overlong time,
Cause the material that is centrifuged rotten etc., influence experimental result.
The content of the invention
The present invention provides a kind of centrifuge rotating speed overtravel mechanism in short-term, realizes that the main shaft short time surpassed distance of centrifuge adds
Speed, it ensure that by the quality of centrifugation material.
To achieve these goals, the technical scheme taken of the present invention is：A kind of centrifuge rotating speed overtravel mechanism in short-term,
Including input shaft, the first axle bed, the second axle bed, junction piece, spring, bearing holder (housing, cover), bearing and output shaft, the input shaft is provided with
Rectangular opening, the input shaft and the first axle bed are rotatablely connected, and the output shaft and the second axle bed are rotatablely connected, on the junction piece
Connecting pole is arranged with, the junction piece lower end is provided with rectangular pin, and the rectangular pin is slidably connected with rectangular opening, the junction piece
Outer wall is provided with friction plate, and the junction piece is provided with two, the connecting pole clasp joint on the spring one end and a junction piece, separately
Outer one end and the connecting pole clasp joint on another junction piece, the bearing holder (housing, cover) connects with interference fit inside output shaft, described
Bearing is arranged in bearing holder (housing, cover), and the end of the input shaft is connected with bearing inner race, and the output shaft end is provided with rotary sleeve, and
Rotary sleeve wraps junction piece.
Preferably, it is arranged with flat surface on the input shaft.
Preferably, the spring hooks spring using both ends band.
Preferably, the friction plate uses potassium steel material.
Beneficial effect using above technical scheme is：Centrifuge rotating speed overtravel mechanism in short-term, by thing to be centrifuged
Matter is put into centrifuge, and then external motor drives input shaft rotation, is gradually stepped up then as the rotating speed of input shaft, engages
Block is thrown away by centrifugal force so that the rectangular pin of junction piece lower end skids off from rectangular opening, and now spring is under the influence of centrifugal force
Connected post further stretches, until the friction plate on junction piece outer wall contacts with the rotary sleeve inwall of output shaft end, engagement
The centrifugal force of block is bigger, i.e. junction piece is bigger to the normal pressure of rotary sleeve inwall, now the friction between friction plate and rotary sleeve
Power drives rotary sleeve with output shaft rotation, because after the rotating speed of input shaft reaches certain rotating speed, work of the junction piece in centrifugal force
It can just be contacted with lower with the inwall of rotary sleeve, so the angular acceleration of output shaft can be very big, realize the main shaft short time of centrifuge
Surpassed distance accelerates, and ensure that by the quality of centrifugation material.
Flat surface is arranged with the input shaft, avoids the flexural deformation of spring；The friction plate uses high-manganese steel
Matter, ensure that friction plate is wear-resisting and coefficient of friction is big.
Brief description of the drawings
Fig. 1 is centrifuge rotating speed overtravel mechanism structural representation in short-term；
Fig. 2 is the structural representation of input shaft；
Wherein：
1st, input shaft；2nd, the first axle bed；3rd, the second axle bed；4th, junction piece；5th, spring；6th, bearing holder (housing, cover)；7th, bearing；8th, export
Axle；10th, flat surface；11st, rectangular opening；40th, connecting pole；41st, rectangular pin；42nd, friction plate；80th, rotary sleeve.
Embodiment
Below against accompanying drawing, by the description to embodiment, embodiment of the invention is made further details of
Explanation, it is therefore an objective to help those skilled in the art to have more complete, accurate and deep reason to design of the invention, technical scheme
Solution, and contribute to its implementation.
As shown in Figure 1 to Figure 2, the present invention is a kind of centrifuge rotating speed overtravel mechanism in short-term, realizes the main shaft of centrifuge
Short time surpassed distance accelerates, and ensure that by the quality of centrifugation material.
Including input shaft 1, the first axle bed 2, the second axle bed 3, junction piece 4, spring specifically, as shown in Figure 1 to Figure 2,
5th, bearing holder (housing, cover) 6, bearing 7 and output shaft 8, as shown in Figure 1 and Figure 2, the input shaft 1 are provided with rectangular opening 11, the input shaft 1
It is rotatablely connected with the first axle bed 2, the output shaft 8 is rotatablely connected with the second axle bed 3, and connection is arranged with the junction piece 4
Post 40, the lower end of junction piece 40 are provided with rectangular pin 41, and the rectangular pin 41 is slidably connected with rectangular opening 11, the junction piece 4
Outer wall is provided with friction plate 42, and the junction piece 4 is provided with two, described one end of spring 5 and the connecting pole 40 on a junction piece 4
Clasp joint, other end are matched somebody with somebody with the clasp joint of connecting pole 40 on another junction piece 4, the bearing holder (housing, cover) 6 with the inside interference of output shaft 8
Connection is closed, the bearing 7 is arranged in bearing holder (housing, cover) 6, and the end of the input shaft 1 is connected with the inner ring of bearing 7, the output shaft 8
End is provided with rotary sleeve 80, and rotary sleeve 80 wraps junction piece 4.
As shown in Figure 1 and Figure 2, it is arranged with flat surface 10 on the input shaft 1.
As shown in figure 1, the spring 5 hooks spring using both ends band.
The friction plate 42 uses potassium steel material.
Specific works mode is illustrated with specific embodiment below：
Centrifuge rotating speed overtravel mechanism in short-term, material to be centrifuged is put into centrifuge, and then external motor drives
Move input shaft 1 to rotate, gradually stepped up then as the rotating speed of input shaft 1, junction piece 4 is thrown away by centrifugal force so that junction piece 4
The rectangular pin 41 of lower end skids off from rectangular opening 11, and now spring 5 is connected post 40 and further stretched under the influence of centrifugal force,
Until the friction plate 42 on the outer wall of junction piece 4 contacts with the inwall of rotary sleeve 80 of the end of output shaft 8, the centrifugal force of junction piece 4 is got over
Greatly, i.e. junction piece 4 is bigger to the normal pressure of the inwall of rotary sleeve 80, now the frictional force drives between friction plate 42 and rotary sleeve 80
Rotary sleeve 80 rotates with output shaft 8, because after the rotating speed of input shaft 1 reaches certain rotating speed, effect of the junction piece 4 in centrifugal force
It is lower just to be contacted with the inwall of rotary sleeve 80, so the angular acceleration of output shaft 8 can be very big, realize the main shaft short time of centrifuge
Surpassed distance accelerates, and ensure that by the quality of centrifugation material.
Flat surface 10 is arranged with the input shaft 1, avoids the flexural deformation of spring 5；The friction plate 42 is using high
Manganese steel material, ensure that friction plate 42 is wear-resisting and coefficient of friction is big.
The present invention is exemplarily described above in association with accompanying drawing, it is clear that present invention specific implementation is not by above-mentioned side
The limitation of formula, as long as employ the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress；Or not
It is improved, the above-mentioned design of the present invention and technical scheme are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (4)
- A kind of 1. centrifuge rotating speed overtravel mechanism in short-term, it is characterised in that：Including input shaft (1), the first axle bed (2), second Axle bed (3), junction piece (4), spring (5), bearing holder (housing, cover) (6), bearing (7) and output shaft (8), the input shaft (1) are provided with square Shape hole (11), the input shaft (1) are rotatablely connected with the first axle bed (2), and the output shaft (8) rotates with the second axle bed (3) to be connected Connect, connecting pole (40) is arranged with the junction piece (4), junction piece (4) lower end is provided with rectangular pin (41), the rectangle Pin (41) is slidably connected with rectangular opening (11), and junction piece (4) outer wall is provided with friction plate (42), and the junction piece (4) sets There are two, described spring (5) one end connects with connecting pole (40) clasp joint on a junction piece (4), other end with another Connecting pole (40) clasp joint on block (4) is closed, the bearing holder (housing, cover) (6) connects with interference fit inside output shaft (8), the bearing (7) it is arranged in bearing holder (housing, cover) (6), the end of the input shaft (1) is connected with bearing (7) inner ring, and output shaft (8) end is set There is rotary sleeve (80), and rotary sleeve (80) wraps junction piece (4).
- A kind of 2. centrifuge according to claim 1 rotating speed overtravel mechanism in short-term, it is characterised in that：The input shaft (1) flat surface (10) is arranged with.
- A kind of 3. centrifuge according to claim 1 rotating speed overtravel mechanism in short-term, it is characterised in that：The spring (5) Spring is hooked using both ends band.
- A kind of 4. centrifuge according to claim 1 rotating speed overtravel mechanism in short-term, it is characterised in that：The friction plate (42) potassium steel material is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710920221.4A CN107497612A (en) | 2017-09-30 | 2017-09-30 | A kind of centrifuge rotating speed overtravel mechanism in short-term |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710920221.4A CN107497612A (en) | 2017-09-30 | 2017-09-30 | A kind of centrifuge rotating speed overtravel mechanism in short-term |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107497612A true CN107497612A (en) | 2017-12-22 |
Family
ID=60700530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710920221.4A Withdrawn CN107497612A (en) | 2017-09-30 | 2017-09-30 | A kind of centrifuge rotating speed overtravel mechanism in short-term |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107497612A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011592A (en) * | 2021-09-23 | 2022-02-08 | 洛阳轴承研究所有限公司 | Oil throwing device for retainer and oil throwing machine |
-
2017
- 2017-09-30 CN CN201710920221.4A patent/CN107497612A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011592A (en) * | 2021-09-23 | 2022-02-08 | 洛阳轴承研究所有限公司 | Oil throwing device for retainer and oil throwing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171222 |