CN202707860U - Pressure type overrunning coupler - Google Patents
Pressure type overrunning coupler Download PDFInfo
- Publication number
- CN202707860U CN202707860U CN 201220310992 CN201220310992U CN202707860U CN 202707860 U CN202707860 U CN 202707860U CN 201220310992 CN201220310992 CN 201220310992 CN 201220310992 U CN201220310992 U CN 201220310992U CN 202707860 U CN202707860 U CN 202707860U
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- CN
- China
- Prior art keywords
- star wheel
- wheel
- ejector pin
- pressure type
- roller
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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 - Fee Related
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Abstract
The utility model discloses a pressure type overrunning coupler which comprises an inner star wheel and an outer star wheel sleeved outside the inner star wheel, wherein a gap is remained between the inner star wheel and the outer star wheel, a roller pin is arranged in the gap, the outer star wheel is provided with a movable lifting pin for supporting against the roller pin, the width of the gap is gradually increased towards the direction of the movable lifting pin, the other end of the movable lifting pin is provided with an energy accumulator, and the movable lifting pin is connected with the energy accumulator through a pipeline module. Through reasonable structure reconstruction, particularly the original spring structure is replaced by matching of the energy accumulator and the pipeline module, even if the roller pin is seriously worn, the energy accumulator is regulated to output pressure, under the working condition of same loads, the pressure type overrunning coupler has overlong service life, is rapid and convenient in replacing quick-wear parts, is low in cost, can develop specialties in some special use occasions, and has a remarkable effect especially on the aspect of energy saving and emission reduction.
Description
Technical field
The utility model relates to a kind of pressure type free wheel device of pressure type free wheel device, particularly a kind of longer service life.
Background technique
Free wheel device is used between prime mover and the working machine or the vitals of transmission of power and separation function between machine intimate driving shaft and the driven shaft, utilize the conversion of velocity variations or the sense of rotation of driving and driven part, prevent from reversing or move and rest, present free wheel device description on the market is various, mainly can divide three major types: ratchet-type, carve piece formula and roller type.Wherein existing roller-type overrunning clutch comprises star-wheel and is enclosed within the outer out star wheel of star-wheel, wherein star-wheel and between the space out star wheel be provided with roller, cooperate by movable ejector pin and spring simultaneously and withstand roller, make star-wheel and out star wheel wedging realize transmission, but mainly there is defective in this structure aspect serviceability, especially roller is subject to extruding and the friction of star-wheel and out star wheel, and because roller is permitted stress and is contacted perhaps stress in the shearing of transmission process, make the as easy as rolling off a log wearing and tearing of roller, when in case larger wearing and tearing appear in roller, make original roller displacement amount in the space become excessive, and make the spring that originally withstands roller become inapplicable, at present general free wheel device total load cycle-index is no more than 10 on the market
9Inferior, generally 10
7About inferior, although can satisfy the requirement of most of mechanical devices, but to the higher mechanical device of the super total load cycle-index of ask for something, existing product just is difficult to meet the demands, in case when above-mentioned damage occurring, just to change accessory inevitably, not only bother, and under specific circumstances, for example when petroleum production, the free wheel device connecting times is more and continuous firing is longer, and this replacing might can't realize and changing device more.
The model utility content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of pressure type free wheel device of longer service life.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of pressure type free wheel device, comprise star-wheel and be enclosed within the outer out star wheel of star-wheel, leave the space between wherein said star-wheel and the out star wheel, be provided with roller in the described space, described out star wheel is equipped be used to the movable ejector pin that withstands roller, the width in described space becomes greatly gradually towards movable ejector pin direction, and the other end of described movable ejector pin is provided with accumulator, connects by the pipeline module between wherein said movable ejector pin and the accumulator.
Stable in order to guarantee hydraulic conduction, described pipeline module comprises the module body that is connected with out star wheel and the pipeline that is engraved in the module body, and this pipeline is communicated with movable ejector pin and accumulator.
In order to guarantee sealing effect, described movable top guide is equipped with oil seal washer.
The beneficial effects of the utility model are: this clutch is by rational structure of modification, specifically match by accumulator and pipeline module and replace original spring structure, even large wearing and tearing appear in roller, accumulator also can keep delivery pressure substantially constant automatically, under the operating mode of equal load, and the working life with overlength, the replacing easily damaged parts is efficient and convenient, cheap, can bring into play its speciality in some special use occasion, particularly effect is remarkable aspect energy-saving and emission-reduction.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of a-quadrant among Fig. 1;
Fig. 3 is connection diagram of the present utility model.
Embodiment
With reference to Fig. 1, Fig. 2, Fig. 3.A kind of pressure type free wheel device, comprise star-wheel 1 and the out star wheel 2 that is enclosed within outside the star-wheel 1, leave space 3 between wherein said star-wheel 1 and the out star wheel 2,3 li in described space is provided with roller 4, described out star wheel 2 is equipped be used to the movable ejector pin 5 that withstands roller 4, the width in described space 3 becomes greatly gradually towards movable ejector pin 5 directions, makes star-wheel 1 and out star wheel 2 wedgings realize transmission.Wherein the hardness of star-wheel 1 and out star wheel 2 guarantees higher than the hardness of roller 4.The other end of described movable ejector pin 5 is provided with accumulator 6, connect by pipeline module 7 between wherein said movable ejector pin 5 and the accumulator 6, described pipeline module 7 comprises the module body 71 that is connected with out star wheel 2 and the pipeline 72 that is engraved in the module body 71, this pipeline 72 is communicated with movable ejector pin 5 and accumulator 6, movable ejector pin 5 and pipeline 72 then cooperate the formation piston cylinder operator, act on movable ejector pin 5 by accumulator 6 delivery pressures, make movable ejector pin 5 keep that roller 4 is had enough active forces, even large wearing and tearing appear in roller 4, thereby movable ejector pin 5 also can keep pressure to guarantee that star-wheel 1 and out star wheel 2 clutches of avoiding working properly lost efficacy.
In addition, described movable ejector pin 5 is set with oil seal washer 51, avoids movable ejector pin 5 places oil leakage phenomenon to occur.
When real work, drive the effect that out star wheel 2 is realized buffering by roller 4 during star-wheel 1 rotation, and pipeline module 7 is rotated together along with out star wheel 2 also, 6 thrusts that keep roller 4 by pipeline 72 of accumulator.
The utility model is by rational structure of modification, specifically matching by accumulator 6 and pipeline module 7 replaces original spring structure, even large wearing and tearing appear in roller 4, accumulator 6 also can keep delivery pressure substantially constant automatically, under the operating mode of equal load, the working life with overlength.
Claims (3)
1. pressure type free wheel device, comprise star-wheel (1) and be enclosed within the outer out star wheel (2) of star-wheel (1), leave space (3) between wherein said star-wheel (1) and the out star wheel (2), the inner roller (4) that is provided with in described space (3), described out star wheel (2) is equipped be used to the movable ejector pin (5) that withstands roller (4), the width in described space (3) becomes large gradually towards movable ejector pin (4) direction, it is characterized in that: the other end of described movable ejector pin (5) is provided with accumulator (6), connects by pipeline module (7) between wherein said movable ejector pin (5) and the accumulator (6).
2. a kind of pressure type free wheel device according to claim 1, it is characterized in that: described pipeline module (7) comprises the module body (71) that is connected with out star wheel (2) and is engraved in pipeline (72) in the module body (71), and this pipeline (72) is communicated with movable ejector pin (5) and accumulator (6).
3. a kind of pressure type free wheel device according to claim 1, it is characterized in that: described movable ejector pin (5) is set with oil seal washer (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220310992 CN202707860U (en) | 2012-06-29 | 2012-06-29 | Pressure type overrunning coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220310992 CN202707860U (en) | 2012-06-29 | 2012-06-29 | Pressure type overrunning coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707860U true CN202707860U (en) | 2013-01-30 |
Family
ID=47588167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220310992 Expired - Fee Related CN202707860U (en) | 2012-06-29 | 2012-06-29 | Pressure type overrunning coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202707860U (en) |
-
2012
- 2012-06-29 CN CN 201220310992 patent/CN202707860U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20140629 |
|
| EXPY | Termination of patent right or utility model |