CN208831549U - Mechanical locking device based on lever fine motion principle rotating shaft - Google Patents
Mechanical locking device based on lever fine motion principle rotating shaft Download PDFInfo
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- CN208831549U CN208831549U CN201820483696.1U CN201820483696U CN208831549U CN 208831549 U CN208831549 U CN 208831549U CN 201820483696 U CN201820483696 U CN 201820483696U CN 208831549 U CN208831549 U CN 208831549U
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- lever
- fine motion
- locking device
- rotating shaft
- locking
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Abstract
The utility model discloses a kind of rotating shaft mechanical locking device based on lever fine motion principle, which is mainly made of cam mechanism, leverage and locking assembly three parts.Device locking principle is moved by handwheel driving cam means, using lever fine motion principle, makes lever mechanism by fine motion above and below twisted point；The rationally shape at setting leverage both ends, allows leverage to compress the briquetting in the locking device.The utility model is evenly arranged three briquettings in view of the deformation of shafting and the factor of locking effect reliability in locking assembly, is controlled the compression of briquetting by leverage and handwheel and is loosened, and structure is reliable reasonable, easy to operate.
Description
Technical field
The utility model relates to the equipment with rotating shaft, in particular for it is some do not work when need to lock at any time set
It is standby.
Background technique
Existing machinery locking device is usually to utilize relative motion principle work between two components of limitation.For example it utilizes
Screw-threaded coupling, its operation strategies is wider, but it should not be used alone in the environment of requiring and needing and be quickly converted；Partially
Heart wheel retaining mechanism easily causes the destruction of plastic material；Four-bar mechanism is locked, its structure is complex, practice
In the process, it may be placed without so big space；It is shunk at present with a kind of extensive 3 self-alignments of comparison thin
That there is also coupling mechanism forces is uneven for wall cover locking, and size is inconvenient to the disadvantages of adjusting.
However in actual production, we are frequently necessary to use mechanical interlock mechanism again, this must overcome existing machinery to lock
Phenomena such as locking structure such as coupling mechanism force is uneven, coupling mechanism force is unadjustable, set lever is easily destroyed, is finally reached good lock
Tight effect.
Utility model content
In order to solve, locking device coupling mechanism force is uneven, coupling mechanism force is unadjustable, set lever is easily destroyed, locking device
The defects of reliability is bad, the utility model provide a kind of locking device using lever fine motion principle art, pass through shake
Handwheel drives cam mechanism rotation, passes to above the component for needing to lock power using lever fine motion principle, furnishes us with needs
Coupling mechanism force, to reach locking effect.The device has locking front-rear position and remains unchanged, has enough coupling mechanism forces, work
Do not loosened when making, coupling mechanism force is uniform, adjustable section, good manufacturability, it is easy to process and maintenance the advantages that.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of be based on lever fine motion principle rotating shaft
Mechanical locking device, an including cam mechanism, a leverage, locking assembly composition；Pass through their three's power
The purpose of lock shaft is completed in the transmission of stream.
Above-mentioned mechanical locking device, the cam mechanism are fixed together with handwheel, the specific profile of cam
It can be processed by reasonably designing, be rotated by can be manually rotated handwheel band moving cam, leverage being made to have one up and down
Small movement；It if lever moves up, will be moved down in other end lever, and then compress briquetting, hold rotation tightly
Axis.
Above-mentioned mechanical locking device, the leverage are evenly distributed on circumference, thick stick by three common levers
Bar left end is a common rod piece, it and cam contact, and when cam revolution, rod piece will do experiencing small oscillating movements along the vertical direction；
Lever right end is designed to that three uniformly distributed cylindrical ends, cylindrical end are placed in the hole for having been charged into briquetting, when lever has small movements
When, cylindrical end compresses or unclamps briquetting, to control the locking and release of rotating shaft.
Above-mentioned mechanical locking device, the locking assembly is by a floating bushing, an elastic thin-wall ring, three briquettings
It forms, uniformly processes three notches on floating bushing, three briquettings can be placed；A hole is processed at floating bushing, respectively for placing
Compress the cylindrical end of the lever of briquetting；Elastic thin-wall set and rotating shaft clearance fit, are compressed by briquetting from three different directions
Elastic thin-wall set, to lock rotating shaft.
Above-mentioned mechanical locking device, locking effect is obvious, can pass through the rotational angle and cam contour of control handwheel
Curvature control the size of coupling mechanism force；Locking device is easy to operate, by rotating handwheel, can more reasonably give locking device
Coupling mechanism force is provided；Coupling mechanism force is uniform, by three levers and briquetting, applies coupling mechanism force towards three different directions to locking device,
It can guarantee that the position of axis is constant, guarantee rotating accuracy and the deformation of axis.
It is locked the utility model has the beneficial effects that the utility model applies axis towards different directions using three levers
Power, coupling mechanism force is uneven when effectively eliminating the locking of traditional locking device, influences shafting precision, inconvenient for operation, Bu Nengyou
The defects of effect control coupling mechanism force size.After leverage is applied to locking device, it is convenient to according to the size of required load
Coupling mechanism force is controlled, can especially guarantee that the precision of axis is not destroyed, the every mechanical index of equipment is made to be guaranteed.
Detailed description of the invention
The utility model is described further with reference to the accompanying drawings and examples.
Fig. 1 is utility model diagram；
Fig. 2 is cam lever component drawings；
1. main shaft in figure, 2. elastic thin-wall sets, 3. leverages, 4. handwheels, 5. cam mechanisms, 6. briquettings, 7. floating bushings
8. lever push rod, 9. lever cylindrical ends, 10. lever dollies, 11. lever hinges
Specific embodiment
[embodiment 1]
Under off working state, axis 1 stops operating, and needs to lock axis 1, and handwheel 4 and cam 5 are fixed together, and turns
It starts wheel 4, cam 5 follows handwheel 4 to rotate together, and lever push rod 8 will be moved upwards from the minimum point of cam at this time, pass through lever
The effect of twisted point 11, the lever cylindrical end 9 in floating bushing 7 will move downward, and transmit the force to briquetting 6, and then briquetting 6 again will pressure
Clamp force passes to elastic thin-wall set 2, and elastic thin-wall set 2 finally will reach the effect of lock shaft 1 from three different directions compression axises 1
Fruit.
[embodiment 2]
Under normal operation, the axis securely locked is unlocked.Unclamp handwheel, opposite direction rotation hand wheel 4, handwheel 4
It is fixed together with cam 5, by counter motion, 3 stress of leverage tightened at this time is released cam 5, and lever assembly 3 will
Its equilibrium state is returned to, pressure suffered by briquetting 6 disappears, and elastic thin-wall set unclamps the axis held tightly, and axis 1 unlocks,
The driving moment lower axle of motor will work normally.
Claims (4)
1. a kind of mechanical locking device based on lever fine motion principle rotating shaft, including cam mechanism (5), handle (4), cam machine
Structure (5) and handle (4) are fixed together, leverage (3), elastic thin-wall set (2), floating bushing (7) and briquetting (6) institute group
At；It is characterized by: the cam mechanism (5) and handle (4) that are fixed together can be in lever dolly upper rotaries, but leverage
(3) it cannot be turned round around its axis；When cam mechanism revolution, leverage will carry out fine motion up and down, reach locking and release
The purpose of axis.
2. the mechanical locking device according to claim 1 based on lever fine motion principle rotating shaft, which is characterized in that lever
Device (3) is uniformly made of three pairs of levers, and single pair lever is connected by lever push rod (8), lever cylindrical end (9) by twisted point (11)
Together, when moving upwards under the action of lever push rod (8) is in cam mechanism (5), lever cylindrical end (9) will compress locking group
Part.
3. the mechanical locking device according to claim 2 based on lever fine motion principle rotating shaft, which is characterized in that compress
Locking assembly is made of floating bushing (7), elastic thin-wall set (2), briquetting (6)；Three placement briquettings are uniformly processed on floating bushing (7)
(6) cylindrical hole, lever cylindrical end (9) can move up and down in hole；When lever cylindrical end (9) moves downward, three pressures
Block (6) will compress elastic thin-wall set (2) simultaneously, and then hold axis (1) tightly, reach locking purpose.
4. the mechanical locking device according to claim 3 based on lever fine motion principle rotating shaft, which is characterized in that described
Handle (4) is set as reverse rotation state, lever assembly stress release, and the lever assembly is in new equilibrium state, described
Briquetting (6) is in stress release state, releases locking of the elastic thin-wall set (2) to axis (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820483696.1U CN208831549U (en) | 2018-04-08 | 2018-04-08 | Mechanical locking device based on lever fine motion principle rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820483696.1U CN208831549U (en) | 2018-04-08 | 2018-04-08 | Mechanical locking device based on lever fine motion principle rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208831549U true CN208831549U (en) | 2019-05-07 |
Family
ID=66302858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820483696.1U Active CN208831549U (en) | 2018-04-08 | 2018-04-08 | Mechanical locking device based on lever fine motion principle rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208831549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372909A (en) * | 2018-04-08 | 2019-02-22 | 九江精密测试技术研究所 | Mechanical locking device based on lever fine motion principle rotating shaft |
-
2018
- 2018-04-08 CN CN201820483696.1U patent/CN208831549U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372909A (en) * | 2018-04-08 | 2019-02-22 | 九江精密测试技术研究所 | Mechanical locking device based on lever fine motion principle rotating shaft |
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