CN205388114U - Hydraulic retarder - Google Patents
Hydraulic retarder Download PDFInfo
- Publication number
- CN205388114U CN205388114U CN201620153846.3U CN201620153846U CN205388114U CN 205388114 U CN205388114 U CN 205388114U CN 201620153846 U CN201620153846 U CN 201620153846U CN 205388114 U CN205388114 U CN 205388114U
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- impeller
- rotor
- retarder
- stator
- stator impeller
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Abstract
The utility model discloses a hydraulic retarder, it includes a casing and a transmission shaft, be provided with in the casing one with casing fixed stator impeller and can be for stator impeller pivoted rotor blade wheel mutually, rotor blade wheel encloses with stator impeller and closes the formation working chamber, when the hydraulic retarder during operation, the distance between stator impeller and the rotor blade wheel is 2~2.5mm, when hydraulic retarder was out of work, the distance between stator impeller and the rotor blade wheel was 16~16.5mm. The utility model discloses make hydraulic retarder air in the working chamber when out of work can not form the vortex between rotor blade and stator blade.
Description
Technical field
This utility model relates to a kind of Retarder.
Background technology
Retarder is a kind of auxiliary brake device for automobile, is mainly used in motorbus, urban public traffic vehicles, heavy type
Truck and military vehicle, Retarder includes heat exchanger, impeller of rotor, stator impeller and housing, housing has shoe cream room, impeller of rotor and car transmissions and is fixed together, and in motion, impeller of rotor also can rotate automobile.During Retarder work, compression air enters shoe cream room, oil pressure in shoe cream room is entered stator impeller and working chamber that impeller of rotor encloses, when Retarder is started working, impeller of rotor drives fluid to rotate about the axis, fluid forms eddy current between rotor blade and stator vane, so that the rotation of impeller of rotor is formed resistance by fluid, thus realizing the decelerating effect to vehicle.
When Retarder does not work, impeller of rotor is as well as drive axis, and now impeller of rotor and stator impeller enclose airtight working chamber, there is in working chamber air, so, driving the air in working chamber to rotate when impeller of rotor rotates, air forms eddy current between rotor blade and stator vane, so that the rotation of impeller of rotor is formed resistance by air, so that normal traveling of vehicle can be formed resistance when not working by this Retarder.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Retarder, and this Retarder air in working chamber when not working will not form eddy current between rotor blade and stator vane.
For solving above-mentioned technical problem, the Retarder that this utility model provides, it includes a housing and a power transmission shaft, a stator impeller fixed with housing and an impeller of rotor that can rotate it is provided with relative to stator impeller in housing, impeller of rotor and stator impeller enclose formation working chamber, the centre bore of impeller of rotor is axially formed sleeve portion, cannula portion is fixing to be nested with on power transmission shaft, the inwall of described cannula portion is provided with the first thread segment, power transmission shaft is provided with the second thread segment matched with the first thread segment, helical tooth on second thread segment has 11, and the helical angle of helical tooth is A, wherein A is 29 ~ 40 degree；
Being provided with limiting section on the outer wall of described cannula portion, one end of a stage clip and limiting section offset, and the other end of stage clip and housing offset；
When Retarder works, the distance between stator impeller and impeller of rotor is 2 ~ 2.5mm；
When Retarder does not work, the distance between stator impeller and impeller of rotor is 16 ~ 16.5mm.
As preferably, the helical angle of the described helical tooth on the second thread segment is 32 degree.
As preferably, when Retarder works, the distance between stator impeller and impeller of rotor is 2.25mm.
As preferably, when Retarder does not work, the distance between stator impeller and impeller of rotor is 16.25mm.
For solving above-mentioned technical problem, this utility model additionally provides the using method of a kind of Retarder, comprises the following steps:
When Retarder is started working, fluid enters into working chamber from shoe cream room, power transmission shaft rotor driven wheel rotation, the rotation of impeller of rotor is applied counteracting force by the fluid in working chamber, the counteracting force that impeller of rotor is applied by fluid is more than the elastic force of stage clip, the counteracting force that impeller of rotor applies is made impeller of rotor overcome the elastic force of stage clip and close to stator impeller by fluid, impeller of rotor is the closer to stator impeller, the pressure of working chamber inner fluid is more big, the counteracting force that impeller of rotor is applied by fluid is more big, so that impeller of rotor is got over close to stator impeller, until when the distance between impeller of rotor and stator impeller is B, impeller of rotor stops mobile, wherein B is 2 ~ 2.5mm, wherein, impeller of rotor is 1 ~ 3 second from beginning to move into the interval stopping movement；
When Retarder quits work, fluid in working chamber returns to shoe cream room, power transmission shaft rotor driven wheel rotation, air is only had in working chamber, the air in the working chamber counteracting force elastic force less than spring rotating applying to impeller of rotor, spring drive rotor impeller moves so that impeller of rotor is away from stator impeller, until when the distance between impeller of rotor and stator impeller is C, impeller of rotor stops mobile, wherein C is 16 ~ 16.5mm, wherein, impeller of rotor is 1 ~ 3 second from beginning to move into the interval stopping movement.
This utility model compared with prior art, has the advantage that
When this Retarder does not work, stage clip drive rotor impeller moves to the direction away from stator impeller, so, between impeller of rotor and stator impeller, just form gap, so, impeller of rotor and stator impeller just cannot enclose airtight working chamber, when impeller of rotor rotates, air rotates along with impeller of rotor, but owing to being formed without airtight working chamber, make cannot be formed between rotor blade and stator vane eddy current, the rotation of impeller of rotor cannot be formed resistance by such air, so that normal traveling of vehicle will not be formed resistance when not working by this Retarder.
And the helical angle of the helical tooth on the second thread segment is 32 degree in this utility model, the helical angle of helical tooth is less, and the helical angle reducing helical tooth is when can make impeller of rotor rotate on power transmission shaft, the speed that impeller of rotor moves axially is accelerated, so, when Retarder starts so that impeller of rotor can faster near stator impeller, when Retarder quits work so that impeller of rotor can more quickly depart from stator impeller.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model Retarder；
Fig. 2 is the structural representation of power transmission shaft.
Wherein, 1, housing；2, power transmission shaft；201, the second thread segment；3, stator impeller；4, impeller of rotor；401, cannula portion；402, limiting section；5, stage clip.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in more detail.
By Fig. 1, shown in Fig. 2, this utility model Retarder includes housing 1 and a power transmission shaft 2, the stator impeller 3 fixed with housing 1 and the impeller of rotor 4 that can rotate it is provided with relative to stator impeller 3 in housing 1, impeller of rotor 4 and stator impeller 3 enclose formation working chamber, the centre bore of impeller of rotor 4 is axially formed sleeve portion 401, cannula portion 401 is fixing to be nested with on power transmission shaft 2, it is characterized in that: the inwall of described cannula portion 401 is provided with the first thread segment, power transmission shaft 2 is provided with the second thread segment 201 matched with the first thread segment, helical tooth on second thread segment 201 has 11, and the helical angle of helical tooth is 32 degree.
Being provided with limiting section 402 on the outer wall of described cannula portion 401, one end of a stage clip 5 and limiting section 402 offset, and the other end of stage clip 5 and housing 1 offset.
When Retarder works, the distance between stator impeller 3 and impeller of rotor 4 is 2.25mm.
When Retarder does not work, the distance between stator impeller 3 and impeller of rotor 4 is 16.25mm.
The using method of above-mentioned Retarder is as follows:
When Retarder is started working, fluid enters into working chamber from shoe cream room, power transmission shaft rotor driven wheel rotation, the rotation of impeller of rotor is applied counteracting force by the fluid in working chamber, the counteracting force that impeller of rotor is applied by fluid is more than the elastic force of stage clip, the counteracting force that impeller of rotor applies is made impeller of rotor overcome the elastic force of stage clip and close to stator impeller by fluid, impeller of rotor is the closer to stator impeller, the pressure of working chamber inner fluid is more big, the counteracting force that impeller of rotor is applied by fluid is more big, so that impeller of rotor is got over close to stator impeller, until when the distance between impeller of rotor and stator impeller is 2.25mm, impeller of rotor stops mobile, wherein, impeller of rotor is 1.5 seconds from beginning to move into the interval stopping movement.
When Retarder quits work, fluid in working chamber returns to shoe cream room, power transmission shaft rotor driven wheel rotation, air is only had in working chamber, the air in the working chamber counteracting force elastic force less than spring rotating applying to impeller of rotor, spring drive rotor impeller moves so that impeller of rotor is away from stator impeller, until when the distance between impeller of rotor and stator impeller is 16.25mm, impeller of rotor stops mobile, wherein, impeller of rotor is 1.5 seconds from beginning to move into the interval stopping movement.
Reduce impeller of rotor when helical angle can make Retarder start and arrive the time shortening of stator impeller, on the contrary, when Retarder quits work, also the time that impeller of rotor departs from stator impeller can be made to shorten, it is more fast that impeller of rotor departs from stator impeller, the counteracting force that the rotation of impeller of rotor is applied by the air in working chamber will be made more little, reduce the energy loss of automobile.
Retarder of the present utility model, when Retarder start and stop, as long as impeller of rotor arrives and departs from all 1.5 seconds time of stator impeller, speed.
Applying preferably example as far as this utility model above and be made that explanation, but be not to be construed as limitations on claims, structure of the present utility model can have other to change, and is not limited to said structure.In a word, all various changes made in the protection domain of independent claims of the present utility model are all in protection domain of the present utility model.
Claims (4)
1. a Retarder, it includes a housing (1) and a power transmission shaft (2), the stator impeller (3) fixed with housing (1) and the impeller of rotor (4) that can rotate it is provided with relative to stator impeller (3) in housing (1), impeller of rotor (4) and stator impeller (3) enclose formation working chamber, the centre bore of impeller of rotor (4) is axially formed sleeve portion (401), cannula portion (401) is fixing to be nested with on power transmission shaft (2), it is characterized in that: the inwall of described cannula portion (401) is provided with the first thread segment, power transmission shaft (2) is provided with the second thread segment (201) matched with the first thread segment, helical tooth on second thread segment (201) has 11, and the helical angle of helical tooth is A, wherein A is 29 ~ 40 degree；
Being provided with limiting section (402) on the outer wall of described cannula portion (401), one end of a stage clip (5) and limiting section (402) offset, and the other end of stage clip (5) and housing (1) offset；
When Retarder works, the distance between stator impeller (3) and impeller of rotor (4) is 2 ~ 2.5mm；
When Retarder does not work, the distance between stator impeller (3) and impeller of rotor (4) is 16 ~ 16.5mm.
2. Retarder according to claim 1, it is characterised in that: the helical angle of the described helical tooth on the second thread segment (201) is 32 degree.
3. Retarder according to claim 1, it is characterised in that: when Retarder works, the distance between stator impeller (3) and impeller of rotor (4) is 2.25mm.
4. Retarder according to claim 1, it is characterised in that: when Retarder does not work, the distance between stator impeller (3) and impeller of rotor (4) is 16.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620153846.3U CN205388114U (en) | 2016-03-01 | 2016-03-01 | Hydraulic retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620153846.3U CN205388114U (en) | 2016-03-01 | 2016-03-01 | Hydraulic retarder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205388114U true CN205388114U (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620153846.3U Active CN205388114U (en) | 2016-03-01 | 2016-03-01 | Hydraulic retarder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205388114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673734A (en) * | 2016-03-01 | 2016-06-15 | 宁波华盛联合制动科技有限公司 | Hydrodynamic retarder and application method thereof |
-
2016
- 2016-03-01 CN CN201620153846.3U patent/CN205388114U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673734A (en) * | 2016-03-01 | 2016-06-15 | 宁波华盛联合制动科技有限公司 | Hydrodynamic retarder and application method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |