CN201368156Y - Inertia tensioning clutch - Google Patents
Inertia tensioning clutch Download PDFInfo
- Publication number
- CN201368156Y CN201368156Y CNU2009200381864U CN200920038186U CN201368156Y CN 201368156 Y CN201368156 Y CN 201368156Y CN U2009200381864 U CNU2009200381864 U CN U2009200381864U CN 200920038186 U CN200920038186 U CN 200920038186U CN 201368156 Y CN201368156 Y CN 201368156Y
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- China
- Prior art keywords
- rotary
- circular cone
- inertia
- thread
- cone stage
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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 - Lifetime
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Abstract
The utility model relates to an inertia tensioning clutch which comprises a drive shaft, a driven shaft, a coupler, and a thread sleeve; the drive shaft and the thread sleeve, as well as the driven shaft and the coupler are in key connection; one or more thread sleeves are sleeved on the drive shaft; two segments of external threads with reverse turning directions are formed on the excircle of each thread sleeve; each segment of external threads is provided with a cone; internal threads are formed on the inner circles of the two cones; the turning directions of the inner threads on two cones are opposite; one or two tensioning sleeves are sleeved on one or two cones; and the tensioning sleeve(s) and the inner hole of the coupler are separated or in contact with each other, so as to realize separation and joint. The inertia tensioning clutch can be widely applied to clutches requiring small shock and vibration and large transmission torque, and has low cost and long service life.
Description
Technical field
The utility model relates to a kind of friction clutch, specifically a kind of inertia expansion clutch that utilizes contraction of inertia-activated tensioner cover or tensioner to realize clutch.
Background technique
The clutch of prior art generally is divided into engagement sleeve, friction clutch, hydraulic couplers and torque converter etc., because that friction clutch impacts and shakes is little, therefore is used widely in mechanical field.Disclosed a kind of friction type overrunning clutch in the patent No. 93223880.7, it is the activity clutch coupling that on driving shaft, is threaded, effect of inertia makes the rubbing surface of activity clutch coupling separate with the rubbing surface of driven shaft or meshes, thereby realizes clutch, and its deficiency is that activity clutch coupling is as link and driving component, connect driving shaft, the friction engagement driven shaft, Component Design is unreasonable, produces loaded down with trivial details, replacing inconvenience, be unfavorable for safeguarding that Applicable scope is less.
Summary of the invention
The utility model purpose is to overcome the deficiency that prior art exists, provide a kind of simple in structure, cost is low, maintain easily, and is suitable for the inertia expansion clutch of multiple workplace.
In order to achieve the above object, the technological scheme that the utility model adopted is: it comprises driving shaft, driven shaft, coupling, thread bush, driving shaft is connected through key respectively with coupling with thread bush, driven shaft, its technical characterstic is to be with one or many thread bushs on the driving shaft, every thread bush cylindrical is provided with outside thread, be respectively equipped with Rotary-table on two sections outside threads, the inner ring of two Rotary-tables is provided with internal thread, be with the tensioner cover on the outer edge surface of one Rotary-table or two Rotary-tables, the tensioner cover is with the coupling endoporus and separates or contact condition realization clutch.
Further, two sections external thread rotaries that the thread bush cylindrical is provided with are on the contrary, and the internal thread rotation direction of two Rotary-tables is opposite, and the outside thread on the thread bush cylindrical internal thread rotation direction with two Rotary-tables respectively is identical.。
Again further, described two Rotary-tables are two circular cone stage bodies, or are a circular cone stage body and a cylindrical body; The tapering of the external conical surface of described circular cone is 2 °-50 °, and described two Rotary-tables are two circular cone stage bodies, and the outer conical surface of two circular cone stage bodies in the same way or oppositely, the tensioner cover is placed on the external disc of two circular cone; Described two Rotary-tables are a circular cone stage body and a Rotary-table, the outer conical surface of circular cone stage body is towards an end that is provided with the cylinder stage body, the tensioner cover is placed on the circular cone body conical surface and pushes against cylinder stage body interior edge face, and bearing pin passes two Rotary-tables, and an end of Rotary-table upper pin is provided with shaft block ring.
The technical solution of the utility model also comprises: tensioner cover fluting, and tensioner cover inner ring is provided with a conical surface or two conical surfaces, and the tapering of the conical surface is 2 °-50 °; Externally threaded outer end is respectively equipped with butterfly spring and shaft block ring on the thread bush; Driving shaft is provided with shaft block ring near the end face of coupling the inner; The screw thread that thread bush is connected with Rotary-table can adopt trapezoidal thread or V thread screw or buttress thread form or abnormal screw thread; Driving shaft can adopt flat key to be connected with thread bush, driven shaft with the key Placement of coupling or involute splines connects or rectangular spline connects or serration spline connects or special-shaped spline connects.
After adopting above technological scheme, the beneficial effect that the utility model reaches is: adopt driving shaft connecting thread cover, coupling to connect driven shaft, compact overall structure, volume are little, are convenient to install, transportation; Rotary-table cooperates with tensioner cover tapering, during mechanical operation, two Rotary-tables lag behind and rotate, inertia drives the relative thread bush rotation of Rotary-table, opposite screw drive two Rotary-tables of two kinds of rotation directions in opposite directions or opposing moving, tensioner or shrink the tensioner cover overcomes that to finish fashionable impulse force big, and contact friction face is tensioner cover outer ring, increased friction area, transmitting torque is high more, and the tensioner cover is big more with coupling frictional force, is not prone to and skids, the tensioner cover is with the coupling endoporus and separates or contact condition realization clutch, need not adjust the friction gap, cost is low, is convenient to maintenance; Driving shaft one end is provided with shaft block ring, and the bearing pin thread bush is provided with butterfly spring, shaft block ring, realizes the safe and reliable service behaviour of whole system, has reduced the damage of impacting machine, has prolonged working life; Driving shaft is provided with one or more thread bushs, can regulate according to customer requirement or Environmental Conditions, satisfies the clutch requirement, and applicable situation is more.The present invention utilizes inertia-activated tensioner cover to shrink or tensioner realizes clutch, and is simple in structure, compact, and mechanism stable is convenient to safeguard that cost is low, and applicable situation is more.
Description of drawings
Fig. 1 is first a kind of embodiment's of the present utility model structural representation;
Fig. 2 is second a kind of embodiment's of the present utility model structural representation;
Fig. 3 is the third an embodiment's of the present utility model structural representation.
Among the figure, driven shaft 1, key 2,14, coupling 3, shaft block ring 4,10,12, thread bush 5, circular cone stage body 6,61, cylinder stage body 62, tensioner cover 7,71,72, screw thread 8,81, bearing pin 9, axle is back-up ring 10,12 forever, butterfly spring 11, driving shaft 13, key 14, screw thread 15,151.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
Embodiment one:
Shown in Figure 1, inertia expansion clutch comprises driving shaft 13, thread bush 5, driven shaft 1, coupling 3, driving shaft 13 is connected with key 14 with thread bush 5, driven shaft 1 is connected with key 2 with coupling 3, be with thread bush 5 on the driving shaft 13, thread bush 5 cylindricals are provided with two sections outside threads that rotation direction is opposite, be respectively equipped with two circular cone stage bodies 6 on two sections outside threads, 61, two circular cone stage bodies 6,61 conical surface taper direction in opposite directions, two circular cone stage bodies 6,61 inner ring is provided with internal thread, two circular cone stage bodies 6,61 internal thread rotation direction is opposite, two circular cone stage bodies 6, be with tensioner cover 7 on 61 the periphery.Bearing pin 9 passes two circular cone stage bodies 6,61, and the bearing pin that exposes circular cone stage body 61 is provided with shaft block ring 10, and driving shaft 1 is provided with shaft block ring 4 near the end face of coupling 3 the inners, and externally threaded outer end is respectively equipped with dish spring 11 and shaft block ring 12 on the thread bush 5.
Embodiment two:
Shown in Figure 2, the conical surface taper direction of two circular cone stage bodies 6,61 is opposing, and tensioner cover 71 is placed on the outer conical surface of two circular cone stage bodies, and all the other structures are identical with embodiment one.
Embodiment three:
Shown in Figure 3, be respectively equipped with a circular cone stage body 6 and a cylindrical body 8 on the thread bush outside thread, the taper direction of the outer conical surface of circular cone stage body 6 is towards the one side that is provided with cylindrical body 8, on the outer conical surface of tensioner cover 72 covers and circular cone stage body 6, push against the interior edge face of cylindrical body 8, all the other structures are identical with embodiment one.
Among the embodiment one, when driving shaft 13 turns clockwise, drive thread bush 5 rotations, circular cone stage body 6,61 are subjected to effect of inertia, rotation lags behind, two circular cone stage bodies 6,61 are subjected to screw thread to rotate driving relatively, two circular cone stage bodies 6,6a axially moves in opposite directions, circular cone stage body 6,61 liang of outer conical surface are tightened up, with tensioner cover 7 outside spreadings, the gap that tensioner cover 7 outside spreadings are eliminated tensioner cover 7 and coupling 3 endoporus, produce frictional force, driven shaft 1 resistance is big more, then two circular cone stage bodies 6,61 axial locking power are also big more, drive coupling 3 and driven shaft 1 rotation, thereby realize transmission of power; When driving shaft 13 is rotated counterclockwise, drive thread bush 5 rotations, circular cone stage body 6,61 is subjected to effect of inertia hysteresis rotation, be subjected to screw thread to rotate driving relatively, two circular cone stage bodies 6,61 axially oppositely move, and 6,61 liang of male cone (strobilus masculinus)s of circular cone stage body unclamp, and tensioner is overlapped 7 elastic recoverys and formed the gap, ring is thrown off with tensioner cover 7 in the coupling 3, thereby disconnects transmission of power.
Among the embodiment two, working principle is identical with embodiment one.
Among the embodiment three, when driving shaft 13 turns clockwise, drive thread bush 5 rotations, circular cone stage body 6, cylindrical body 8 is subjected to effect of inertia, rotation lags behind, circular cone stage body 6, cylindrical body 8 is subjected to screw thread to rotate driving relatively, circular cone stage body 6, cylindrical body 8 axially moves in opposite directions, circular cone stage body 6, cylindrical body 8 tightens up, and tensioner cover 72 is promoted outside spreading against cylindrical body 8 by circular cone stage body 6, the gap that tensioner cover 72 outside spreadings are eliminated tensioner cover 72 and coupling 3 endoporus, produce frictional force, driven shaft 1 resistance is big more, and then the circular cone stage body 6, cylindrical body 8 axial locking power are also big more, drive coupling 3 and driven shaft 1 rotation, thereby realize transmission of power; When driven shaft 13 is rotated counterclockwise, drive thread bush 5 rotations, circular cone stage body 6, cylindrical body 8 are subjected to effect of inertia hysteresis rotation, be subjected to screw thread to rotate driving relatively, circular cone stage body 6, cylindrical body 8 axially oppositely move, and circular cone stage body 6, cylindrical body 8 unclamp, and tensioner is overlapped 72 elastic recoverys and formed the gap, ring is thrown off with tensioner cover 72 in the coupling 3, thereby disconnects transmission of power.
If inertia expansion clutch is under the jointing state, the inertia expansion clutch separation that driven shaft 1 turns clockwise and can make joint.
Claims (9)
1, a kind of inertia expansion clutch, it comprises driving shaft (13), driven shaft (1), coupling (3), thread bush (5), driving shaft and thread bush, driven shaft is connected with key (2) through key (14) respectively with coupling, it is characterized in that: be with one or many thread bushs (5) on the described driving shaft (13), every thread bush cylindrical is provided with two sections outside threads (8,81), be respectively equipped with Rotary-table on two sections outside threads, the inner ring of two Rotary-tables is provided with internal thread (15,151), be with tensioner cover (7) on the periphery of one Rotary-table or two Rotary-tables, the tensioner cover is with the coupling endoporus and separates or contact condition realization clutch.
2, inertia expansion clutch according to claim 1, it is characterized in that: two sections outside threads (8 that described thread bush cylindrical is provided with, 81) rotation direction is opposite, the internal thread (15 of two Rotary-tables, 151) rotation direction is opposite, outside thread on the thread bush cylindrical (8,81) internal thread (15, the 151) rotation direction with two Rotary-tables respectively is identical.
3, inertia expansion clutch according to claim 1 is characterized in that: described two Rotary-tables are two circular cone stage bodies (6,61), or are a circular cone stage body (6) and a cylinder stage body (62).
4, inertia expansion clutch according to claim 3, it is characterized in that: described two circular cone stage bodies (6,61) outer conical surface in the same way or oppositely, two circular cone stage bodies (6,61) tapering of outer conical surface is 2 °-50 °, tensioner cover (7) or tensioner cover (71) are placed on two circular cone stage body (6, the 61) peripheries.
5, inertia expansion clutch according to claim 3, it is characterized in that: described two Rotary-tables are a circular cone stage body (6) and a cylindrical body (62), the outer conical surface of circular cone stage body is towards an end that is provided with the cylinder stage body, and tensioner cover (72) is placed on circular cone stage body (6) outer conical surface and pushes against cylinder stage body (8) interior edge face.
6, inertia expansion clutch according to claim 1 is characterized in that: bearing pin (9) passes two Rotary-tables, and bearing pin exposes the outer end of Rotary-table and is provided with shaft block ring (10).
7, according to claim 4 or 5 described inertia expansion clutch, it is characterized in that: described tensioner cover (7,71,72) fluting, tensioner cover inner ring is provided with a conical surface or two conical surfaces, and the tapering of the conical surface is 2 °-50 °.
8, inertia expansion clutch according to claim 1 is characterized in that: described thread bush (5) is gone up externally threaded outer end and is respectively equipped with butterfly spring (11) and shaft block ring (12).
9, inertia expansion clutch according to claim 1 is characterized in that: described driving shaft (13) is provided with shaft block ring (4) near the inner end face of coupling (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200381864U CN201368156Y (en) | 2009-01-20 | 2009-01-20 | Inertia tensioning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200381864U CN201368156Y (en) | 2009-01-20 | 2009-01-20 | Inertia tensioning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201368156Y true CN201368156Y (en) | 2009-12-23 |
Family
ID=41487049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200381864U Expired - Lifetime CN201368156Y (en) | 2009-01-20 | 2009-01-20 | Inertia tensioning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201368156Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476606B (en) * | 2009-01-20 | 2011-05-04 | 李霖民 | Inertia expansion clutch |
-
2009
- 2009-01-20 CN CNU2009200381864U patent/CN201368156Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476606B (en) * | 2009-01-20 | 2011-05-04 | 李霖民 | Inertia expansion clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091223 Effective date of abandoning: 20090120 |