CN204527177U - Efficient braking hydrodynamic retarder - Google Patents
Efficient braking hydrodynamic retarder Download PDFInfo
- Publication number
- CN204527177U CN204527177U CN201520104377.1U CN201520104377U CN204527177U CN 204527177 U CN204527177 U CN 204527177U CN 201520104377 U CN201520104377 U CN 201520104377U CN 204527177 U CN204527177 U CN 204527177U
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- China
- Prior art keywords
- driving wheel
- blade
- wheel
- hydrodynamic retarder
- efficient braking
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Abstract
The utility model discloses one and efficiently brake hydrodynamic retarder, comprise housing, driving wheel, fixed wheel, H Exch and fuel tank; Described driving wheel and fixed wheel are installed on enclosure interior and the two is coaxially oppositely arranged, and the opposite face of described driving wheel and fixed wheel is equipped with blade, and the blade on driving wheel is rear loaded type leaned blade; Described driving wheel is rotationally connected with housing by wheel shaft, and described wheel shaft carries out synchronous separation connection with between dynamical axis by being separated connecting device; Efficient braking hydrodynamic retarder of the present utility model, loaded type leaned blade after adopting, can weaken in flow field or eliminate backflow, Effects of Secondary Flow, improve braking effect, between driving wheel with dynamical axis, synchronous separation connects, without the need to being discharged by the fluid in housing during vehicle non-brake, simplifying oil channel structures, reducing manufacturing cost and use cost.
Description
Technical field
The utility model relates to a kind of retarder, particularly relates to one and efficiently brakes hydrodynamic retarder.
Background technology
Retarder is the complemental brake system for full size vehicle (such as truck, passenger vehicle etc.), and its effect is that the vehicle making quality larger steadily slows down and do not consume the energy of brake system.Hydrodynamic retarder is the one in retarder, it is again fluid power speed reduction gearing, it rotarily drives liquid by the driving wheel be connected on transmission shaft and rotates, the kinetic energy of liquid is increased, then the blade on fixed wheel is impacted, cause kinetic energy rejection and be converted into heat energy, thus consuming the kinetic energy of automobile, playing brake action.Ubiquity backflow and Secondary Flow phenomenon between the hydrodynamic retarder driving wheel of prior art and fixed wheel, flow losses are caused to increase, reduce braking effect, and hydrodynamic retarder to be normally connected with drop-gear box and to use, the power take-off shaft of drop-gear box is connected with the transmission shaft of hydrodynamic retarder by coupler, in order to avoid consumption of engine power needs the fluid in hydrodynamic retarder housing to discharge during vehicle non-brake, oil piping system is complicated, and use cost is high.
Utility model content
In view of this, the purpose of this utility model is to provide one and efficiently brakes hydrodynamic retarder, can weaken or eliminate backflow, Effects of Secondary Flow in flow field, improves braking effect, simplifies oil channel structures, reduces manufacturing cost and use cost.
Efficient braking hydrodynamic retarder of the present utility model, comprises housing, driving wheel, fixed wheel, H Exch and fuel tank; Described driving wheel and fixed wheel are installed on enclosure interior and the two is coaxially oppositely arranged, and the opposite face of described driving wheel and fixed wheel is equipped with blade, and the blade on driving wheel is rear loaded type leaned blade; Described driving wheel is rotationally connected with housing by wheel shaft, and described wheel shaft carries out synchronous separation connection with between dynamical axis by being separated connecting device;
Further, the blade on described fixed wheel is also rear loaded type leaned blade;
Further, described rear loaded type leaned blade is " C " shape warp architecture;
Further, the thickness of described rear loaded type leaned blade is from radially outward reducing gradually;
Further, described separation connecting device comprises with the joint gear ring I of dynamical axis spline joint, arranges with described joint gear ring I is coaxial and is connected described joint gear ring I with the joint gear ring II that driving wheel is fixedly connected with and synchronous separation and engages the clutch type synchro of gear ring II;
Further, described housing, fuel tank and H Exch three are in turn connected to form circulating oil path; The import of H Exch and outlet are open-close type structure;
Further, described efficient braking hydrodynamic retarder also comprises control system, described control system comprises brake pedal, sensor and electronic processors, described sensor setting is on described brake pedal and for detecting brake pedal displacement, described sensor is connected with described electronic processors and the electronic signal made described brake pedal Displacement Analysis is transmitted to described electronic processors, and described electronic processors is connected with described clutch type synchro.
The beneficial effects of the utility model are: efficient braking hydrodynamic retarder of the present utility model, loaded type leaned blade after adopting, can weaken in flow field or eliminate backflow, Effects of Secondary Flow, improve braking effect, between driving wheel with dynamical axis, synchronous separation connects, without the need to being discharged by the fluid in housing during vehicle non-brake, simplifying oil channel structures, reducing manufacturing cost and use cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is driving wheel structural representation.
Detailed description of the invention
Fig. 1 is structural representation of the present utility model; Fig. 2 is driving wheel structural representation, as shown in the figure: the efficient braking hydrodynamic retarder of the present embodiment, comprises housing 1, driving wheel 2, fixed wheel 3, H Exch 4 and fuel tank 5; Described driving wheel 2 and fixed wheel 3 are installed on housing 1 inside and the two is coaxially oppositely arranged, and the opposite face of described driving wheel 2 and fixed wheel 3 is equipped with blade, and the blade on driving wheel 2 is rear loaded type leaned blade 6; Described driving wheel 2 is rotationally connected with housing 1 by wheel shaft 7, and described wheel shaft 7 carries out synchronous separation connection with between dynamical axis 9 by being separated connecting device; It is inner that described driving wheel 2 and fixed wheel 3 are installed on housing 1; Fixed wheel 3 is fixed on housing 1; Described fuel tank 5 is communicated in housing 1 inner chamber, and fuel tank 5 is provided with pressure air and regulates apportioning valve 8; Housing 1, fuel tank 5 and H Exch 4 are once connected to form circulation loop, this circulation loop is installed oil pump drives the oil circulation in loop to flow, the high-temperature oil liquid that retarder work is produced constantly flow in H Exch 4 and cools, be delivered in housing 1 by the fluid of cooling again, blade-end loss is exactly usually said sensu lato secondary flow loss; Leaf grating inner wall pressure is greater than back wall, produces horizontal Secondary Flow in end-wall boundary layer, and clashes into wall at dorsal horn wall corner place, forms Passage Vortex, causes blade-end loss.Because conventional design is positive pressure gradient along blade radial, low energy fluid from top to bottom flows along blade convexity, bump against at blade root corner place and wall, and ooze mixed with root Secondary Flow, form more strong vortex, larger loss can be caused. therefore, reduce secondary flow loss and must weaken low energy fluid channelling radially, blade on driving wheel 2 is rear loaded type leaned blade 6, rear loaded type leaned blade 6 is FC blades, refer to driving wheel 2, before its wheel blade edge conrotatory veer is positioned at wheel blade and wheel wall intersection, in aft-loading airfoil, back of the body arc voltage difference is " pre-small post-large ", end wall lateral flow principle is " front weak rear strong ", therefore, posterior transversal stream is failed and is carried on the back arc and bump against and namely enter main flow, secondary flow loss is caused to decline, aft-loading airfoil has a significant effect in reduction secondary flow loss, can weaken in flow field or eliminate backflow, Effects of Secondary Flow, improve braking effect, dynamical axis 9 is the axles being connected with driving wheel 2 to accept to brake, retarder is installed on the change-speed box rear end of vehicle usually, therefore this dynamical axis 9 can be the power take-off shaft of transmission for vehicles, between wheel shaft 7 with dynamical axis 9, synchronous separation connects and refers to that the wheel shaft 7 of driving wheel 2 can be connected by disengaging type with between dynamical axis 9, be separated connecting device can be power-transfer clutch or connected by synchro two engage the structure such as gear rings, all can realize the purpose of this utility model.
In the present embodiment, the blade on described fixed wheel 3 is also rear loaded type leaned blade 6, weakens or eliminates backflow, Effects of Secondary Flow, improving braking effect further.
In the present embodiment, described rear loaded type leaned blade 6 is " C " shape warp architecture, and rear loaded type leaned blade 6 is designed to " C " shape blade according to control flow check theory and rear loading theory, in order to weaken in flow field or to eliminate backflow, Effects of Secondary Flow; Rear loaded type leaned blade 6 can also be involute shape structure based on driving wheel 2 endoporus or planar spiral streamline construction, and convection cell resistance is little, is beneficial to the flowing of fluid.
In the present embodiment, the thickness of described rear loaded type leaned blade 6 is from radially outward reducing gradually, namely after, the thickness of loaded type leaned blade 6 radially outward reduces gradually from corresponding driving wheel 2 or fixed wheel 3, not only save material, alleviate the weight of corresponding driving wheel 2 or fixed wheel 3, and make rear loaded type leaned blade 6 form streamline shape, convection cell resistance is little, is beneficial to the flowing of fluid.
In the present embodiment, described separation connecting device comprises with the joint gear ring I 10 of dynamical axis 9 spline joint, arranges with described joint gear ring I 10 is coaxial and is connected described joint gear ring I 10 with the joint gear ring II 12 that driving wheel 2 is fixedly connected with and synchronous separation and engages the clutch type synchro 11 of gear ring II 12, engage gear ring I 10 and also can be fixedly connected on dynamical axis 9, the wheel shaft 7 of driving wheel 2 stretches out by housing 1, engaging gear ring II 12 is fixed on the wheel shaft 7 of driving wheel 2, dynamical axis 9 is through the wheel shaft 7 of driving wheel 2 and fixed wheel 3 and stretch out by housing 1, by bearing normal-running fit between dynamical axis 9 and fixed wheel 3, the endoporus passed for dynamical axis 9 is provided with in driving wheel 2 and wheel shaft 7 thereof, clutch type synchro refers to that the mode of synchro synchronous working realizes with the separation of power-transfer clutch or combining form, (separation) order is combined when this synchro receives, synchronous lock ring engages with re-spective engagement gear ring (separation), the non-rigid synchronized links (interruption) of the diaxon of different rotating speeds can be realized, the pump loss existed when adopting clutch type synchro that traditional retarder can be avoided dally, improves driving efficiency, and in conjunction with the corresponding electron steering of control system, and the requirement that when can realize automobile brake, retarder responds fast, reduces and add oil consumption.
In the present embodiment, described housing 1, fuel tank 5 and H Exch 4 three are in turn connected to form circulating oil path; The import of H Exch 4 and outlet are open-close type structure.
In the present embodiment, described efficient braking hydrodynamic retarder also comprises control system, described control system comprises brake pedal, sensor and electronic processors, described sensor setting is on described brake pedal and for detecting brake pedal displacement, described sensor is connected with described electronic processors and the electronic signal made described brake pedal Displacement Analysis is transmitted to described electronic processors, and described electronic processors is connected with described clutch type synchro; Form closed loop control system, response is fast, and can brake vehicle timely and effectively, degree of automation is high, artificially manipulates without the need to chaufeur, simplifies driver behavior.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (7)
1. efficiently brake a hydrodynamic retarder, it is characterized in that: comprise housing, driving wheel, fixed wheel, H Exch and fuel tank; Described driving wheel and fixed wheel are installed on enclosure interior and the two is coaxially oppositely arranged, and the opposite face of described driving wheel and fixed wheel is equipped with blade, and the blade on driving wheel is rear loaded type leaned blade; Described driving wheel is rotationally connected with housing by wheel shaft, and described wheel shaft carries out synchronous separation connection with between dynamical axis by being separated connecting device.
2. efficient braking hydrodynamic retarder according to claim 1, is characterized in that: the blade on described fixed wheel is also rear loaded type leaned blade.
3. efficient braking hydrodynamic retarder according to claim 2, is characterized in that: described rear loaded type leaned blade is " C " shape warp architecture.
4. efficient braking hydrodynamic retarder according to claim 3, is characterized in that: the thickness of described rear loaded type leaned blade is from radially outward reducing gradually.
5. efficient braking hydrodynamic retarder according to claim 1, is characterized in that: described separation connecting device comprises with the joint gear ring I of dynamical axis spline joint, arranges with described joint gear ring I is coaxial and is connected described joint gear ring I with the joint gear ring II that driving wheel is fixedly connected with and synchronous separation and engages the clutch type synchro of gear ring II.
6. efficient braking hydrodynamic retarder according to claim 1, is characterized in that: described housing, fuel tank and H Exch three are in turn connected to form circulating oil path; The import of H Exch and outlet are open-close type structure.
7. efficient braking hydrodynamic retarder according to claim 5, it is characterized in that: described efficient braking hydrodynamic retarder also comprises control system, described control system comprises brake pedal, sensor and electronic processors, described sensor setting is on described brake pedal and for detecting brake pedal displacement, described sensor is connected with described electronic processors and the electronic signal made described brake pedal Displacement Analysis is transmitted to described electronic processors, and described electronic processors is connected with described clutch type synchro.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520104377.1U CN204527177U (en) | 2015-02-13 | 2015-02-13 | Efficient braking hydrodynamic retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520104377.1U CN204527177U (en) | 2015-02-13 | 2015-02-13 | Efficient braking hydrodynamic retarder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204527177U true CN204527177U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520104377.1U Expired - Fee Related CN204527177U (en) | 2015-02-13 | 2015-02-13 | Efficient braking hydrodynamic retarder |
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| Country | Link |
|---|---|
| CN (1) | CN204527177U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415906A (en) * | 2017-04-24 | 2017-12-01 | 南京航空航天大学 | A kind of auxiliary brake device for automobile |
-
2015
- 2015-02-13 CN CN201520104377.1U patent/CN204527177U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415906A (en) * | 2017-04-24 | 2017-12-01 | 南京航空航天大学 | A kind of auxiliary brake device for automobile |
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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: 20150805 Termination date: 20160213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |