CN205278160U - Liquid buffering isolator - Google Patents
Liquid buffering isolator Download PDFInfo
- Publication number
- CN205278160U CN205278160U CN201520960997.5U CN201520960997U CN205278160U CN 205278160 U CN205278160 U CN 205278160U CN 201520960997 U CN201520960997 U CN 201520960997U CN 205278160 U CN205278160 U CN 205278160U
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- China
- Prior art keywords
- shell
- driving wheel
- inner ring
- cavity
- oil
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- Expired - Fee Related
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Abstract
The utility model discloses a liquid buffering isolator, liquid buffering isolator include outer loop, inner ring, roller and pressure spring, still include buffer, buffer includes shell, drive wheel and apron, shell and outer loop fixed connection, the shell center is provided with a circular cavity, evenly is equipped with the baffle in the cavity and falls into at least three oil pocket with the cavity, and be provided with the recess on the lateral wall of oil pocket, the periphery of drive wheel is provided with evenly distributed's the pressure tooth corresponding to the oil pocket, and the drive wheel center is provided with the connecting hole, is provided with the keyway on the connection pore wall, the drive wheel sets up in the circular cavity of shell, and presses the tooth to be located corresponding oil pocket respectively, be provided with return spring between the lateral wall of drive wheel -pressure tooth and the lateral wall of oil pocket, the apron is fixed on the shell, and has also set up the sealing washer between shell and the apron, has been full of hydraulic oil in the oil pocket, this buffer is not fragile and the life -span is longer.
Description
Technical field
The utility model relates to a kind of unidirectional device, particularly relates to a kind of unidirectional device of fluid cushion.
Background technology
When automobile engine starting, first being driven the flywheel of engine to rotate by starting engine, then engine could start; But after engine ignition starts, the rotating speed of its flywheel can surmount rapidly the rotating speed of starting engine, drive starting engine in order to avoid engine reverse rotates, therefore between engine and starting engine, it is provided with unidirectional device, it is again overrunning clutch, therefore, exceed the rotating speed of starting engine at the rotating speed of engine after, unidirectional device is by separated, thus avoids driven by engine starting engine to rotate.
Power truck is equally also provided with unidirectional device; When power truck changes to low speed gear by high gear, owing to output shaft has just departed from high-speed gear, so output shaft still has a higher rotating speed, therefore after output shaft is connected with low speed gear, making output shaft and low speed gear have an identical speed just needs output shaft to have a deceleration process, otherwise output shaft will oppositely drive low speed gear to rotate, in power truck, therefore also it is provided with unidirectional device, prevents output shaft from oppositely driving low speed gear.
Therefore unidirectional device uses extensively in automobile industry, existing a kind of unidirectional device being arranged on starting engine, it it is the intermediate gearing that the moment of torsion that automobile starter is produced passes to flywheel, in power transmission process, when starting most to start due to starting engine, electric current increases instantaneously so that unidirectional device can bear very big power, thus easily causes the damage of unidirectional device. For this problem, now also create the unidirectional device that some have snubber assembly, but these snubber assemblys are all with spring buffer, but spring is after playing shock absorption, also being in compressed state, to transmit moment of torsion, therefore spring is subject to bigger pressure for a long time always, snubber assembly is made to need often maintenance, and the life-span is shorter.
Practical novel content
The utility model is intended to provide a kind of unidirectional device of fluid cushion, needs often maintenance with resolve buffer device, the problem that the life-span is shorter.
The unidirectional device of base case fluid cushion of the present utility model, comprises outer shroud, inner ring, roller and stage clip; Described outer shroud and inner ring are circular ring structure, and the internal surface of inner ring is also provided with keyway, and inner ring is arranged in outer shroud; Described endocyclic outer wall is provided with multiple webge slot, and roller is arranged between outer shroud and inner ring, and is positioned at webge slot, and one end of stage clip is fixed on wedge shape cell wall, and the other end compresses roller; Also comprising snubber assembly, snubber assembly comprises shell, driving wheel and cover plate; Described shell is fixedly connected with described outer shroud, and housing center is provided with a circular-shaped, concave cavity, is evenly provided with dividing plate cavity is divided at least three oily chambeies in cavity, and is provided with groove on the sidewall in oil chamber; The periphery of described driving wheel is provided with the equally distributed pressure tooth corresponding to oil chamber, and driving wheel center is provided with and connects hole, connects and is provided with keyway on hole wall; Driving wheel is arranged in the circular-shaped, concave cavity of shell, and pressure tooth lays respectively at corresponding oily chamber; It is provided with return spring between the sidewall of described driving wheel load tooth and the sidewall in oil chamber; Described cover plate is fixed on shell, and is also provided with sealing-ring between shell and cover plate, and oil is filled with hydraulic efficiency oil in chamber.
In this base case, in the connection hole being inserted to driving wheel center of the rotating shaft of starting engine, and it is connected with rotating shaft key; When starting engine starts, its rotating shaft will drive driving wheel to rotate, now the pressure tooth on driving wheel will impact hydraulic efficiency oil, the then pressure increase of pressure side hydraulic efficiency oil in cavity, so that the hydraulic efficiency oil mineralization pressure in cavity is poor, so hydraulic efficiency oil flows to low-tension side by by the groove of oil chamber sidewall from high-tension side, when due to hydraulic efficiency oil itself, there is stronger stickiness, and the size of groove is limited, so the sidewall of pressure tooth cannot at once with the sidewall laminating in oil chamber, thus directly transmit moment of torsion, make outer shroud have surge time with this. And when starting engine stops rotating, driving wheel is by the position next time of the effect at return spring.
In this scheme, although return spring take part in buffering course, but return spring can not be subject to too big power, only needs to provide the power being enough to make driving samsara position; After hydraulic efficiency oil completes buffering, drive the sidewall of wheel load tooth by the sidewall laminating with oil chamber, thus transmit moment of torsion, in the process, do not have parts can be subject to large impact and be destroyed, and hydraulic efficiency oil also has lubrication, so this snubber assembly is without the need to frequent maintenance, and compare and other snubber assemblys, the life-span is longer.
Preferred version one, as the further optimization to base case, described oily chamber is provided with six altogether; Oil chamber is set to six, and pressure tooth also can increase to six equally, owing to pressure tooth not only has the effect of buffering, also has the effect transmitting moment of torsion, therefore presses the quantity of tooth to increase, be conducive to improving its intensity, avoids pressure tooth to fracture; But pressure tooth quantity too much oil chamber space will reduce accordingly, then cushion distance will diminish; Therefore oil chamber is set to six, not only makes driving gear meet requirement of strength, can also meet buffering distance simultaneously.
Preferred version two, is all provided with corresponding annular groove as on the further optimization to base case, described shell and cover plate, and described sealing-ring is arranged in annular groove; Arranging annular groove can make the contact area of sealing-ring and shell and cover plate become big, thus increases chamber sealing effect.
Preferred version three, as the further optimization to base case, described shell is provided with oilhole corresponding to the position in oil chamber, and oilhole plug screw seals; Each oil chamber is provided with oilhole, is conducive to changing hydraulic efficiency oil.
Accompanying drawing explanation
Fig. 1 is the wiring layout of the unidirectional device embodiment of fluid cushion;
Fig. 2 is the sectional view of embodiment snubber assembly.
Embodiment
Below by embodiment, the utility model is described in further detail:
Reference numeral in Figure of description comprises: outer shroud 1, baffle plate 2, inner ring 3, roller 4, snubber assembly 5, rotating shaft 6, shell 51, driving wheel 52, cover plate 53, oil chamber 54, return spring 55, groove 58.
Embodiment is substantially as shown in Figure 1: the unidirectional device of fluid cushion mainly comprises outer shroud 1, inner ring 3, roller 4, baffle plate 2, stage clip and snubber assembly 5. Its outer-loop 1 and inner ring 3 are circular ring structure, and the internal surface of inner ring 3 is also provided with keyway, and to be connected with output shaft, and inner ring 3 is arranged in outer shroud 1; Baffle plate 2 is steel ring plate, and is fixed by circumferentially equally distributed screw and outer shroud 1. Inner ring 3 outer wall is provided with a webge slot, and roller 4 is arranged between outer shroud 1 and inner ring 3, and is positioned at webge slot, and one end of stage clip is fixed on wedge shape cell wall, and the other end compresses roller 4. Snubber assembly 5 is fixed with outer shroud 1.
As shown in Figure 1 and Figure 2, snubber assembly 5 comprises shell 51, driving wheel 52 and cover plate 53; Its housing 51 center is provided with a circular-shaped, concave cavity, and cavity is scattered in six oily chambeies 54 uniformly by six pieces of dividing plates, and the sidewall in oil chamber 54 is provided with groove 58; The center of driving wheel 52 is provided with keyway, is connected with the rotating shaft 6 with starting engine, and the periphery of driving wheel 52 is provided with six equally distributed pressure teeth, and the sidewall of pressure tooth can be fitted with the sidewall in oil chamber 54; In the circular-shaped, concave cavity being arranged on shell 51 of driving wheel 52, and each corresponding oily chamber 54 of pressure tooth; Cover plate 53 is fixed by screws on shell 51 so that oil chamber 54 forms the space closed. Press at driving wheel 52 and it is provided with return spring 55 between the sidewall of tooth and the sidewall in oil chamber 54; It is filled with hydraulic efficiency oil in another outer oil cavity 54.
When starting engine starts, drive driving wheel 52 is rotated by its rotating shaft 6, now the pressure tooth on driving wheel 52 will impact hydraulic efficiency oil, the then pressure increase of pressure side hydraulic efficiency oil in cavity, so that the hydraulic efficiency oil mineralization pressure in cavity is poor, so hydraulic efficiency oil flows to low-tension side by by the groove 58 of oil chamber 54 sidewall from high-tension side, when due to hydraulic efficiency oil itself, there is stronger stickiness, and the size of groove 58 is limited, so the sidewall of pressure tooth cannot at once with the sidewall laminating in oil chamber 54, thus directly transmit moment of torsion, make outer shroud 1 have surge time with this. And when starting engine stops rotating, driving wheel 52 is by the position next time of the effect at return spring 55.
Effect is sealed preferably in order to make oil chamber 54 have, driving wheel 52 is provided with rubber sealing boot, and between shell 51 and cover plate 53, is also provided with sealing-ring, and be all provided with corresponding annular groove on shell 51 and cover plate 53, and sealing-ring is arranged in annular groove, thus improve sealing effect. In addition for the ease of changing hydraulic efficiency oil, the position corresponding to oil chamber 54 on shell 51 is also provided with oilhole, and oilhole plug screw seals.
Claims (4)
1. the unidirectional device of fluid cushion, comprises outer shroud, inner ring, roller and stage clip; Described outer shroud and inner ring are circular ring structure, and the internal surface of inner ring is also provided with keyway, and inner ring is arranged in outer shroud; Described endocyclic outer wall is provided with multiple webge slot, and roller is arranged between outer shroud and inner ring, and is positioned at webge slot, and one end of stage clip is fixed on wedge shape cell wall, and the other end compresses roller; It is characterized in that, also comprising snubber assembly, snubber assembly comprises shell, driving wheel and cover plate; Described shell is fixedly connected with described outer shroud, and housing center is provided with a circular-shaped, concave cavity, is evenly provided with dividing plate cavity is divided at least three oily chambeies in cavity, and is provided with groove on the sidewall in oil chamber; The periphery of described driving wheel is provided with the equally distributed pressure tooth corresponding to oil chamber, and driving wheel center is provided with and connects hole, connects and is provided with keyway on hole wall; Driving wheel is arranged in the circular-shaped, concave cavity of shell, and pressure tooth lays respectively at corresponding oily chamber; It is provided with return spring between the sidewall of described driving wheel load tooth and the sidewall in oil chamber; Described cover plate is fixed on shell, and is also provided with sealing-ring between shell and cover plate, and oil is filled with hydraulic efficiency oil in chamber.
2. the unidirectional device of fluid cushion according to claim 1, it is characterised in that, described oil chamber is provided with six altogether.
3. the unidirectional device of fluid cushion according to claim 1, it is characterised in that, described shell and cover plate are all provided with corresponding annular groove, described sealing-ring is arranged in annular groove.
4. the unidirectional device of fluid cushion according to claim 1, it is characterised in that, described shell is provided with oilhole corresponding to the position in oil chamber, and oilhole plug screw seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520960997.5U CN205278160U (en) | 2015-11-28 | 2015-11-28 | Liquid buffering isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520960997.5U CN205278160U (en) | 2015-11-28 | 2015-11-28 | Liquid buffering isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205278160U true CN205278160U (en) | 2016-06-01 |
Family
ID=56062739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520960997.5U Expired - Fee Related CN205278160U (en) | 2015-11-28 | 2015-11-28 | Liquid buffering isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205278160U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351386A (en) * | 2015-11-28 | 2016-02-24 | 重庆华洋单向器制造有限公司 | Liquid-buffering isolator |
| CN110017341A (en) * | 2017-12-08 | 2019-07-16 | 丰田自动车株式会社 | Liquid braking device |
| CN112227251A (en) * | 2020-09-21 | 2021-01-15 | 隗有祥 | Rotatable formula road surface is installing support for notice board |
-
2015
- 2015-11-28 CN CN201520960997.5U patent/CN205278160U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351386A (en) * | 2015-11-28 | 2016-02-24 | 重庆华洋单向器制造有限公司 | Liquid-buffering isolator |
| CN105351386B (en) * | 2015-11-28 | 2018-05-01 | 重庆华洋单向器制造有限公司 | A kind of fluid cushion isolator |
| CN110017341A (en) * | 2017-12-08 | 2019-07-16 | 丰田自动车株式会社 | Liquid braking device |
| CN112227251A (en) * | 2020-09-21 | 2021-01-15 | 隗有祥 | Rotatable formula road surface is installing support for notice board |
| CN112227251B (en) * | 2020-09-21 | 2022-01-07 | 朱兴平 | Rotatable formula road surface is installing support for notice board |
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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: 20160601 Termination date: 20161128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |