CN108458000A - A kind of centrifugal mechanism - Google Patents
A kind of centrifugal mechanism Download PDFInfo
- Publication number
- CN108458000A CN108458000A CN201810549859.6A CN201810549859A CN108458000A CN 108458000 A CN108458000 A CN 108458000A CN 201810549859 A CN201810549859 A CN 201810549859A CN 108458000 A CN108458000 A CN 108458000A
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- CN
- China
- Prior art keywords
- sliding block
- shaft
- centrifugal
- block
- groove
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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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Classifications
-
- 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
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
- F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
- F16D43/18—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with friction clutching members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
A kind of centrifugal mechanism, it includes shaft, sliding block one, sliding block two and several centrifugal-blocks；The sliding block one and sliding block two are slidably located in shaft, are moved along shaft axial direction；The bottom of each centrifugal-block is hinged with two connecting rods, and two connecting rods are hinged with sliding block one and sliding block two respectively；Resetting spring is provided between the sliding block one and sliding block two, the resetting spring is set in shaft, and one end is contacted with sliding block one, and the other end is contacted with sliding block two.It when the centrifugal mechanism is placed in brake tube, and shaft rotating speed is larger, is contacted with brake tube inner wall at the top of the centrifugal-block on the centrifugal mechanism and generates frictional force, shaft can be braked under the action of the frictional force.Centrifugal mechanism is simple in structure, reliable operation.
Description
Technical field
The present invention relates to transmission fields, refer in particular to a kind of centrifugal mechanism.
Background technology
Shaft is in rotation process, and there are following working conditions：When shaft rotating speed is slower, make shaft normal rotation；When
When shaft rotating speed is very fast, shaft is made to stop operating.
Under normal circumstances, countershaft braking is all that manual operation braking mechanism carrys out locking shaft, so that shaft is stopped operating, people
It will appear the situation of operating personnel's reaction not in time for operation, and then have little time countershaft and braked；Manual operation simultaneously
It will produce maloperation.
Invention content
It is an object of the invention to：In view of the above problems, a kind of centrifugal mechanism is provided, when the centrifugal mechanism is placed in
In brake tube, when shaft rotating speed is larger, is contacted with brake tube inner wall at the top of the centrifugal-block on the centrifugal mechanism and generate frictional force, turned
Axis can be braked under the action of the frictional force.Centrifugal mechanism is simple in structure, reliable operation.
The technical solution adopted by the present invention is as follows：
A kind of centrifugal mechanism, it includes shaft, sliding block one, sliding block two and several centrifugal-blocks；The sliding block one and sliding block two slide
It is set in shaft, is moved along shaft axial direction；The bottom of each centrifugal-block is hinged with two connecting rods, two connecting rods respectively with cunning
Block one and sliding block two are hinged；Resetting spring is provided between the sliding block one and sliding block two, the resetting spring is set in shaft,
One end is contacted with sliding block one, and the other end is contacted with sliding block two.
Due to above structure, when centrifugal mechanism housing sets brake tube, shaft rotates in brake tube, and resetting spring makes
Two sliding blocks are away from each other；When shaft rotating speed is larger, the centrifugal force that centrifugal-block is subject to is larger, which is more than between two sliding blocks again
The elastic force of position spring, centrifugal-block is close to brake tube inner wall far from shaft, while two sliding blocks are close to each other；The top of centrifugal-block
When being contacted with brake tube inner wall, centrifugal-block and brake tube phase mutual friction generate frictional force, which makes shaft stop operating；
When shaft rotating speed is smaller, the centrifugal force that centrifugal-block is subject to is smaller, which is less than the elastic force of resetting spring between two sliding blocks；From
Heart block cannot be close to brake tube inner wall, therefore shaft can be rotated further.
Further, the centrifugal-block is arranged for one week around the shaft at equal intervals, and is hinged on sliding block one by connecting rod and slides
On block two.
Further, several grooves are offered on shaft part of the shaft for installing sliding block one and sliding block two, it is described recessed
Slot extends along shaft axis direction；The sliding block one is identical with the structure of sliding block two, and several balls are provided on inner wall；It is described
A ball part rolls in the inner wall of embedded sliding block one and sliding block two, and another part rolls in the groove of embedded shaft, and along recessed
The length direction of slot rolls.
In said structure, by the cooperation of groove and ball, can limit sliding block can only move on the shaft part, make two
Maximum spacing between sliding block is determined by the length of groove；The week between sliding block and shaft can be realized by the cooperation of groove and ball
To positioning, while by the cooperation of groove and ball, rolling friction is less than sliding friction, when centrifugal-block stress is larger to centrifugal force
Constantly, two sliding blocks quicker can be moved along shaft axis axial direction.
Further, the ball circularizes array and is embedded in the inner wall of sliding block one and sliding block two；The groove is at equal intervals
One week around the shaft be arranged, quantity and be spaced be mutually matched with ball.
Further, the cross-sectional shape of the groove and the shape of ball match.
Further, the spherical surface of the ball and groove inner wall point contact.
Due to point contact, the friction between ball and groove can be reduced, sliding block of being more convenient for moves on groove.
Further, the groove section shape is V-shaped, the two sides point contact of the ball and " V " shape.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
The centrifugal mechanism of the present invention can make shaft when shaft rotating speed is larger when coordinating brake tube, be automatically stopped shaft and turn
It is dynamic；When shaft rotating speed is smaller, shaft is made to be rotated further；The centrifugal mechanism of the present invention does not need manual operation and adds automatic
Control system, just can realize the braking of shaft, save human cost and manufacturing cost, of the invention simple and compact for structure, work
Make reliably, to be active in one's movements；By resetting spring, centrifugal-block is contacted with brake tube inner wall when rotating speed can be avoided smaller, and two slide
Block uses rolling friction with shaft part, can improve the sensitivity of centrifugal-block action.The centrifugal mechanism of the present invention has a wide range of application
It is wealthy, convenient for promoting and using.
Description of the drawings
Fig. 1 is state diagram when centrifugal-block is not contacted with transmission cylinder inner wall；
Fig. 2 is state diagram when centrifugal-block is contacted with transmission cylinder inner wall；
Fig. 3 is the left view of the present invention；
Fig. 4 is the matching status figure of sliding block and groove；
Fig. 5 is the structural schematic diagram at input shaft installation sliding block.
Specific implementation mode
Below in conjunction with the accompanying drawings, the present invention is described in detail.
Embodiment 1
In the present embodiment, centrifugal mechanism of the invention is applied directly in high speed centrifugation self-locking device, i.e., outside centrifugal mechanism
It is arranged brake tube, combines practical application scene in this way, convenient for more fully embodying technical scheme of the present invention and advantage.
A kind of high speed centrifugation self-locking device, it includes brake tube 1, is provided with centrifugal mechanism in the brake tube, is centrifuged
Mechanism includes shaft, sliding block 1, sliding block 27 and several centrifugal-blocks 2；The sliding block 1 and sliding block 27 are slidably located in shaft 4
On, it is moved along 4 axial direction of shaft；The bottom of each centrifugal-block 2 is hinged with two connecting rods 3, two connecting rods 3 respectively with sliding block 1
It is hinged with sliding block 27；As illustrated in fig. 1 and 2, two connecting rods, 3 upper end is articulated with the same point of 2 bottom of centrifugal-block, in practical application
Can not be in same point, it can be on separated 2 points；Two connecting rods, 3 lower end is hinged with slider side wall respectively.The centrifugal-block 2 around
Shaft is arranged for 4 one weeks at equal intervals, and is hinged on sliding block 1 and sliding block 27 by connecting rod 3.In the present embodiment, centrifugal-block 2
Number be 2；Resetting spring 6 is provided between the sliding block 1 and sliding block 27, the resetting spring 6 is set in shaft 4,
One end is contacted with sliding block 1, and the other end is contacted with sliding block 27；The resetting spring 6 is in compressive state always.
When shaft rotates in brake tube, resetting spring 6 makes two sliding blocks away from each other；When 4 rotating speed of shaft is larger, from
The centrifugal force that heart block 2 is subject to is larger, which is more than the elastic force of resetting spring 6 between two sliding blocks, centrifugal-block 2 far from shaft 4, to
1 inner wall of brake tube is close, while two sliding blocks are close to each other；When the top of centrifugal-block 2 is contacted with 1 inner wall of brake tube, centrifugal-block 2 with
1 phase mutual friction of brake tube, generates frictional force, which makes shaft 4 stop operating；When 4 rotating speed of shaft is smaller, centrifugal-block 2
The centrifugal force being subject to is smaller, which is less than the elastic force of resetting spring 6 between two sliding blocks；Centrifugal-block 2 cannot be in brake tube 1
Wall, therefore shaft 4 can be rotated further.
The centrifugal-block 2 is arranged for 4 one weeks around the shaft at equal intervals, and is hinged on sliding block 1 and sliding block 27 by connecting rod 3
On.In the present embodiment, 2 brake pads are symmetrical arranged.
The shaft 4 offers several grooves 9,9 edge of the groove on the shaft part for installing sliding block 1 and sliding block 27
4 axis direction of shaft extends；The sliding block 1 is identical with the structure of sliding block 27, and several balls 8 are provided on inner wall；It is described
8 part of ball rolls in the inner wall of embedded sliding block 1 and sliding block 27, and another part rolls in the groove 9 of embedded shaft 4, and
Length direction along groove 9 rolls.
The ball 8 circularizes in the inner wall of array insertion sliding block 1 and sliding block 27；The groove 9 is equally spaced to rotate
Axis is arranged for 4 one weeks, and quantity and interval are mutually matched with ball 8.In the present embodiment, the number of ball 8 and groove 9 is 4.
The cross-sectional shape of the groove 9 and the shape of ball 8 match.
The centrifugal mechanism of the present invention is coordinated by the centrifugal-block 2 in brake tube 1 and centrifugal mechanism, is enabled the device to
When 4 rotating speed of shaft is larger, it is automatically stopped the rotation of shaft 4；When 4 rotating speed of shaft is smaller, shaft 4 is made to be rotated further；The present invention's
Centrifugal mechanism does not need manual operation and adds automatic control system, just can realize the automatic of shaft 4, saves human cost
And manufacturing cost, structure of the invention is simple,
It is compact-sized, it is small between occupancy air, convenient for promoting and using.
Embodiment 2
The present embodiment is substantially the same with embodiment 1, the difference is that：The spherical surface of the ball 8 connects with 9 inner wall point of groove
It touches.As shown in figure 4, the cross section of the shaft part of installation sliding block is in " ten " font；9 cross sectional shape of the groove is V-shaped, the rolling
The two sides point contact of pearl 8 and " V " shape；Due to ball 8 and 9 inner wall point contact of groove, can reduce between ball 8 and groove 9
Friction, more conducively sliding block moves on groove 9.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (7)
1. a kind of centrifugal mechanism, it is characterised in that：It includes shaft, sliding block one（5）, sliding block two（7）With several centrifugal-blocks（2）；
The sliding block one（5）With sliding block two（7）Be slidably located in shaft（4）On, along shaft（4）Axial direction moves；Each centrifugal-block
（2）Bottom be hinged with two connecting rods（3）, two connecting rods（3）Respectively with sliding block one（5）With sliding block two（7）It is hinged；The sliding block one
（5）With sliding block two（7）Between be provided with resetting spring（6）, the resetting spring（6）It is set in shaft（4）On, one end and sliding block
One（5）Contact, the other end and sliding block two（7）Contact.
2. centrifugal mechanism according to claim 1, it is characterised in that:The centrifugal-block（2）Around the shaft（4）One week at equal intervals
Setting, and pass through connecting rod（3）It is hinged on sliding block one（5）With sliding block two（7）On.
3. centrifugal mechanism according to claim 2, it is characterised in that:The shaft（4）For installing sliding block one（5）And cunning
Block two（7）Shaft part on offer several grooves（9）, the groove（9）Along shaft（4）Axis direction extends；The sliding block one
（5）With sliding block two（7）Structure it is identical, several balls are provided on inner wall（8）；The ball（8）A part rolls insertion
Sliding block one（5）With sliding block two（7）Inner wall in, another part rolls embedded shaft（4）Groove（9）It is interior, and along groove（9）'s
Length direction rolls.
4. centrifugal mechanism according to claim 3, it is characterised in that:The ball（8）Circularize array insertion sliding block one
（5）With sliding block two（7）Inner wall in；The groove（9）It is equally spaced around the shaft（4）Setting in one week, quantity and interval and rolling
Pearl（8）It is mutually matched.
5. centrifugal mechanism according to claim 4, it is characterised in that:The groove（9）Cross-sectional shape and ball（8）
Shape match.
6. centrifugal mechanism according to claim 4, it is characterised in that:The ball（8）Spherical surface and groove（9）Inner wall point
Contact.
7. centrifugal mechanism according to claim 6, it is characterised in that:The groove（9）Cross sectional shape is V-shaped, described
Ball（8）With the two sides point contact of " V " shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810549859.6A CN108458000A (en) | 2018-05-31 | 2018-05-31 | A kind of centrifugal mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810549859.6A CN108458000A (en) | 2018-05-31 | 2018-05-31 | A kind of centrifugal mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108458000A true CN108458000A (en) | 2018-08-28 |
Family
ID=63215969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810549859.6A Withdrawn CN108458000A (en) | 2018-05-31 | 2018-05-31 | A kind of centrifugal mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108458000A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516654A (en) * | 2020-05-13 | 2020-08-11 | 晋江市创科科技有限公司 | Special cooling device for automobile wheels and use method thereof |
| CN113856600A (en) * | 2021-11-01 | 2021-12-31 | 铜仁学院 | System for nanometer biological product production |
| CN113857883A (en) * | 2021-09-24 | 2021-12-31 | 扬州工业职业技术学院 | Workpiece machining position adjusting device for lathe |
| CN115199988A (en) * | 2022-09-16 | 2022-10-18 | 常州通宝光电股份有限公司 | Car lamp assembly and lighting device based on infrared detection technology |
-
2018
- 2018-05-31 CN CN201810549859.6A patent/CN108458000A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516654A (en) * | 2020-05-13 | 2020-08-11 | 晋江市创科科技有限公司 | Special cooling device for automobile wheels and use method thereof |
| CN111516654B (en) * | 2020-05-13 | 2021-09-07 | 山东通润专用车制造有限公司 | Special cooling device for automobile wheels and use method thereof |
| CN113857883A (en) * | 2021-09-24 | 2021-12-31 | 扬州工业职业技术学院 | Workpiece machining position adjusting device for lathe |
| CN113856600A (en) * | 2021-11-01 | 2021-12-31 | 铜仁学院 | System for nanometer biological product production |
| CN115199988A (en) * | 2022-09-16 | 2022-10-18 | 常州通宝光电股份有限公司 | Car lamp assembly and lighting device based on infrared detection technology |
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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: 20180828 |