CN110682739A - Braking and retarding integrated supporting bridge for trailer - Google Patents
Braking and retarding integrated supporting bridge for trailer Download PDFInfo
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- CN110682739A CN110682739A CN201910967841.2A CN201910967841A CN110682739A CN 110682739 A CN110682739 A CN 110682739A CN 201910967841 A CN201910967841 A CN 201910967841A CN 110682739 A CN110682739 A CN 110682739A
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- braking
- retarder
- impeller
- gear
- retarding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/02—Dead axles, i.e. not transmitting torque
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
- B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/08—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels using fluid or powdered medium
- B60T1/087—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels using fluid or powdered medium in hydrodynamic, i.e. non-positive displacement, retarders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T10/00—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope
- B60T10/02—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope with hydrodynamic brake
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Braking Arrangements (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The invention discloses a braking and retarding integrated supporting bridge for a trailer, which comprises a supporting bridge part, a hydraulic retarder part, a speed increasing mechanism part, a heat dissipation circulating system and a control module, wherein the supporting bridge part comprises a supporting axle housing, a hub and an end cover, the hydraulic retarder part comprises a left stator impeller, a right stator impeller and a rotor impeller, and the speed increasing mechanism part comprises a sun wheel, a planet wheel and a gear ring. The integrated axle designs the position of an original braking mechanism into a hydraulic retarder, and a rotor impeller of the retarder, a sun gear, a right stator impeller and a gear ring of a speed increasing mechanism, and a hub and a planet carrier are integrally designed to provide power for the retarder. The friction braking mechanism and the brake drum are removed from the whole bridge, the weight of the whole bridge is reduced greatly, the adjustment and classification of the torque are realized through two modes of air pressure control retarder braking and retarding, and the sensitivity and the driving safety of vehicle operation are improved.
Description
Technical Field
The invention belongs to the technical field of automobile auxiliary braking, and particularly relates to a braking and retarding integrated supporting bridge for a trailer.
Background
With the rapid development of the road transportation industry, road transportation becomes the main land transportation mode in China, so heavy trucks and semi-tractors become the main force of road cargo transportation, but with the increase of the vehicle load and the increase of the vehicle speed, and as the basic conditions of roads in China, such as multiple slopes and curves, the load of a braking system of a heavy vehicle is larger and larger, the friction plate of a brake is seriously worn, the brake drum is high in temperature and even burst, and the continuous braking force is insufficient. The semi-trailer tractor consists of a trailer and trailers, a transmission system is distributed on the trailer, the trailers are mainly used for bearing transported goods, so that the inertia of the trailer part is large, huge load is caused to friction braking, and the retarder serving as an automobile auxiliary braking device is already installed on heavy vehicles in large quantity, has good effect, can effectively consume the kinetic energy of the running of the vehicles, and protects the running safety of the vehicles. The hydraulic retarder is the first choice for installing the auxiliary braking device on the heavy vehicle due to the advantages of light weight, large braking torque, excellent braking effect during continuous braking and the like. However, the installation position of the retarder is a difficult problem for the semi-trailer tractor. At present, two common methods are adopted, one method is to install a retarder into a trailer transmission system, the braking effect of the scheme is obvious, but the trailer part has no braking force, and the great inertia causes the more serious instability phenomenon of the whole vehicle. The other method is that the retarder is arranged at the position of the trailer, because a power transmission system is not arranged, a power bridge is adopted to replace a supporting bridge of the trailer, and the retarder is arranged on a power bridge differential package.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a braking and retarding integrated support bridge for a trailer, a brake of the support bridge is removed, a hydraulic retarder is designed in the space of the original brake, the wheel edge structure of the support bridge is improved, the hydraulic retarder and a planetary gear speed increasing mechanism are designed in a fusion mode, a rotor blade and a sun wheel of the hydraulic retarder are designed in an integrated mode, a gear ring structure is designed on a right stator impeller, and a planet carrier and a hub are designed in a fusion mode. The power of tire passes through the acceleration mechanism and provides power for the rotor impeller of hydraulic retarber, designs into the blade structure on original wheel hub, promotes the circulation of fluid in the gear box, and whole axle is highly integrated at the wheel end. The invention replaces an original axle on the vehicle, reduces the quality of the whole vehicle, enhances the braking effect of the whole vehicle and protects the rest friction brakes. At high speed, realize the braking effect through hydraulic retarber's big moment of torsion, consume the kinetic energy of vehicle rapidly, then through the friction brake parking braking of other axles at low speed, alleviate whole axle weight greatly, increase the competitive edge, promote the further development of lightweight axle.
In order to achieve the aim, the technical scheme adopted by the invention is a braking and retarding integrated support bridge for a trailer, which comprises a support bridge part, a hydraulic retarder part, a speed increasing mechanism part, a heat dissipation circulating system and a control module, wherein the support bridge part is connected with the hydraulic retarder part through a connecting rod; the hydraulic retarder part, the speed increasing mechanism part, the heat dissipation circulating system and the control module are all installed on the supporting bridge shell part, and the hydraulic retarder part and the speed increasing mechanism part are all connected with the heat dissipation circulating system and the control module.
The supporting bridge part comprises a supporting axle housing, a wheel hub and an end cover; wheel hub passes through the bearing and installs on supporting the axle housing, and the end cover is connected with wheel hub.
The hydraulic retarder part comprises a left stator impeller, a right stator impeller and a rotor impeller, wherein the left stator impeller, the right stator impeller and the rotor impeller are all in a blade structure, an inlet of working liquid is formed in the left stator impeller, an outlet of the working liquid is formed in the right stator impeller, and the rotor impeller is accelerated by a transmission mechanism to rotate along with the impeller;
the speed increasing mechanism part comprises a sun wheel, a planet wheel and a gear ring, the sun wheel and a rotor impeller are integrally designed, the gear ring and a right stator impeller are designed in a fusion manner, the planet wheel is arranged on a planet gear shaft on a hub, and power is transmitted to the sun wheel to increase speed;
the heat dissipation circulating system and the control module comprise a liquid inlet pipeline, a liquid outlet pipeline, a radiator, a one-way valve, a control gas circuit and a control unit of the retarder; the control gas circuit comprises a gas inlet, a gas storage cylinder, a gas pressure regulating valve, an electromagnetic valve and a pressure release valve;
furthermore, the whole bridge is not provided with a friction braking mechanism and a brake drum, and the hydraulic retarder provides braking force for the whole bridge.
Furthermore, a stator impeller and a rotor impeller of the hydraulic retarder form a left working chamber and a right working chamber, a certain gap is kept between the left stator impeller and the rotor impeller, and a certain gap is kept between the right stator impeller and the rotor impeller.
Furthermore, the hydraulic retarder and the planetary gear speed increasing mechanism are integrally designed, one side of the rotor impeller is designed into a sun gear, and the right stator impeller and the gear ring are designed in a fusion mode.
Further, the blades of the stator impeller and the rotor impeller are straight blades, inclined blades or arc-shaped blades.
Furthermore, a certain number of planetary gear shafts and water pump blades are distributed on the hub, the planetary gear shafts are used for fixing the planetary gears, and the water pump blade structure can reduce the pressure in the gear box and ensure the liquid flow.
Furthermore, the braking torque of the hydraulic retarder is controlled by compressed air, so that the retarder is opened and closed.
The invention provides a working principle of a braking and retarding integrated supporting bridge for a trailer, which comprises the following steps:
the huge inertia of the vehicle drives the wheels to rotate in an accelerating way when the vehicle runs downhill, the power of the wheels at two sides drives the planetary gear to rotate through the wheel hubs, the power is transmitted to the sun gear through the gear accelerating part, and the sun gear and the rotor impeller of the hydraulic retarder are of an integrated structure; when a vehicle is braked, working fluid is pressed into a working cavity of the hydraulic retarder from a bridge body through a liquid inlet pipeline by compressed air, a rotor impeller of the retarder drives the working fluid to rotate, one part of the working fluid circulates along with a rotor, the other part of the working fluid is separated after the rotor impeller is accelerated, a stator impeller is impacted to consume vortex of kinetic energy, the working fluid circulating in the working cavity starts to generate heat, the working fluid enters an accelerating gearbox from an outlet of the retarder and lubricates a gear, a water-stirring blade is arranged at a hub part and drives the working fluid to enter a one-way valve part, and the working fluid enters a radiator to dissipate part of heat and then enters the retarder again to form a circulating system. When the retarder does not work, compressed air stops being supplied, the bridge body is decompressed, working liquid in the retarder is thrown out by the rotor impeller, a part of the working liquid in the gear box is removed, the removal is stopped after the working liquid reaches a set liquid level, and the remained working liquid is used for oil immersion lubrication of gears in the gear box. The braking torque of retarder has the pressure size control of compressed air, can realize braking and slow two modes, and the control unit selects the air pressure size that corresponds according to braking and two kinds of modes of slow speed, and when work was in braking mode, the air pressure regulating valve was pressure control for the high pressure, with the working fluid fast pressure advance retarder and make the inside liquid filling rate of retarder reach the biggest, realizes the maximize of braking torque, provides the moment that satisfies the braking requirement for the wheel. When the air pressure regulating valve works in the retarding mode, the air pressure regulating valve regulates the pressure to be medium pressure and low pressure, the working liquid entering the retarding mode is partially filled, and the braking torque is controlled by the air pressure in real time, so that the braking performance meets the torque requirement of the retarding mode.
Compared with the prior art, the braking and retarding integrated supporting bridge for the trailer has the following advantages that:
the invention is used as an automobile auxiliary braking device, highly integrates the hydraulic retarder at the executing mechanism part of the friction brake of the supporting axle, carries out innovative design on the original structure, removes a friction braking mechanism and a brake drum, greatly reduces the whole axle quality, has highly integrated whole axle structure, and also has the functions of braking and retarding. The retarder adopts air pressure control to realize the conversion of two modes, the internal working liquid adopts hydraulic oil, the basic requirements of the simultaneous working of the retarder, the gear box and the bearing can be ensured, the effect of the hydraulic retarder can be enhanced by the innovative design of the wheel edge part, the normal circulation and the energy conversion of a heat dissipation system are realized, and the high-integration, light-weight and multifunctional axle is formed.
Drawings
Fig. 1 is an overall view of a braking and retarding integrated support bridge for a trailer according to the present invention.
Fig. 2 is a structure and a liquid flow diagram of a wheel edge part of the braking and retarding integrated supporting bridge for the trailer.
Fig. 3 is a three-dimensional cross-sectional view of a right stator of a braking and retarding integrated support bridge for a trailer according to the present invention.
Fig. 4 is a three-dimensional cross-sectional view of a rotor of a braking and retarding integrated support bridge for a trailer according to the present invention.
Fig. 5 is a three-dimensional cross-sectional view of a hub of a braking and retarding integrated support axle for a trailer according to the present invention.
Fig. 6 is a schematic diagram of a control and heat dissipation system of a braking and retarding integrated support bridge for a trailer according to the present invention.
In the figure: the device comprises a supporting axle housing 1, a liquid inlet pipeline 2, a left stator impeller 3, a right stator 4, a gear ring 4-1, a right stator impeller 4-2, a rotor 5, a sun gear 5-1, a rotor impeller 5-2, a planet gear 6, a seal cover 7, a hub 8, a planet gear shaft 8-1, a water pump blade 8-2, an end cover 9, a one-way valve 10, a working liquid level 11, an air inlet 12, a heat radiation water tank 13, a liquid outlet pipeline 14, a circulation circle 15, an air storage cylinder 16, a pressure regulating valve 17, a two-position two-way electromagnetic valve 18, a pressure relief valve 19 and a control unit 20.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings, wherein the examples are only used for explaining the present invention and are not used for limiting the scope of the present invention.
As shown in fig. 1, an assembly diagram of a braking and retarding integrated support axle for a trailer according to the present invention includes a support axle portion, a hydrodynamic retarder portion, a speed increasing mechanism portion, a heat dissipation circulation system, and a control module.
The supporting bridge part comprises a supporting axle housing 1, a hub 8 and an end cover 9; wheel hub 8 is installed on supporting axle housing 1 through the bearing, and end cover 9 is connected with wheel hub 8.
The hydraulic retarder comprises a left stator impeller 3, a right stator impeller 4-2 and a rotor impeller 5-2, wherein the left stator impeller 3, the right stator impeller 4-2 and the rotor impeller 5-2 are of blade structures, an inlet of working liquid is formed in the left stator impeller 3, an outlet of the working liquid is formed in the right stator impeller 4-2, the left stator impeller 3 is fixedly connected with a supporting axle housing 1, the right stator impeller 4-2 is connected with the left stator impeller 3, and the rotor impeller 5-2 rotates along with a hub 8. The rotor impeller 5-2 and the left stator impeller 3 and the right stator impeller 4-2 keep proper clearance,
the speed increasing mechanism comprises a sun gear 5-1, a planet gear 6, a gear ring 4-1 and a planet gear shaft 8-1, wherein the gear ring 4-1 is fused on the right stator 4 and keeps static, the planet gear 6 is installed on the planet gear shaft 8-1 and rotates along with a hub 8, the sun gear 5-1 and a rotor impeller 5-2 are designed into a rotor 5 with an integrated structure, the power of a tire is transmitted to the rotor impeller 5-1 through the planet gear 6, and the gear ring 4-1 and the sun gear 5-1 are in meshing transmission to increase the speed.
The heat dissipation circulation system and the control module comprise a liquid inlet pipeline 2, a liquid outlet pipeline 14, a heat dissipation water tank 13, a one-way valve 10, a control gas circuit and a control unit 20 of the retarder; the control gas circuit comprises a gas inlet 12, a gas storage cylinder 16, a gas pressure regulating valve 17, an electromagnetic valve 18 and a pressure release valve 19; the check valve 10 prevents the liquid from flowing back, the air cylinder 16 supplies compressed air, and the air pressure adjusting valve 17 adjusts the air pressure.
As shown in fig. 2, a structure and a fluid flow diagram of a wheel side portion of a braking and retarding integrated support axle for a trailer according to the present invention are shown.
The power of the wheel is speeded up to the rotor impeller 5-2 of the retarder through the gear speed increasing mechanism, when the retarder works, the working fluid enters the working cavity circulation circle 15 of the hydraulic retarder from the liquid inlet pipeline 2, the working fluid is accelerated by the centrifugal action of the rotor impeller 5-2, then the left stator impeller 3 and the right stator impeller 4-2 are impacted for energy consumption, the working fluid is caused to generate heat, then the working fluid flows to the speed increasing mechanism part from the retarder outlet to lubricate the gear, and the working fluid returns to the inside of the support axle housing 1 through the one-way valve 10 to realize circulation due to the fact that the blades 8-2 of the water pump are designed on the hub 8. When the retarder does not work, the liquid inlet pipeline 2 does not enter working liquid, the working liquid level in the whole sealed cavity is kept at the optimal position for lubricating the gear, and no working liquid exists in the working cavity of the retarder, so that the idle loss is reduced.
Fig. 3 is a three-dimensional cross-sectional view of the right stator of the integrated brake and retarder bridge for a trailer according to the present invention. The whole part is divided into two parts, the left side is a right stator impeller 4-2 of the hydraulic retarder, the right stator impeller 4-2 is of an impeller structure, a certain number of blades are uniformly distributed, and the function of kinetic energy consumption of working fluid is achieved. The right side is a gear ring 4-1 of the speed increasing mechanism part, the gear ring 4-1 is positioned on the inner circumference of the right stator 4 and keeps a static state, a liquid outlet is arranged on the right stator impeller 4-2, and the circulated working liquid is conveyed to the gear ring 4-1 part.
Fig. 4 shows a three-dimensional cross-sectional view of a rotor of a braking and retarding integrated support axle for a trailer according to the present invention. The rotor 5 is of an annular structure, the left side of the rotor is provided with a sun gear 5-1 of the speed increasing mechanism, and the sun gear 5-1 is meshed with the planet gear 6 to play a role in power transmission speed increase. The right side is provided with a rotor impeller 5-2 of the hydraulic retarder, blades are distributed on two sides of the rotor impeller 5-2, and the two working fluids of the double working cavities on two sides of the hydraulic retarder are accelerated respectively to realize energy storage of the working fluids.
As shown in fig. 5, a three-dimensional cross-sectional view of a hub of a hydraulic retarder axle of a magnetorheological fluid medium according to the present invention is shown. The structure of a traditional hub 8 is modified, a certain number of water pump blades 8-2 are designed on an inner ring of the hub 8 to promote flowing and circulation of working liquid, a planetary gear shaft 8-1 is designed on one side and used for mounting a planetary gear 6, the hub 8 rotates along with the wheel and drives the planetary gear 6 to rotate, and power is transmitted to a speed increasing mechanism.
Fig. 6 is a schematic diagram of a control and heat dissipation system of a hydraulic retarder axle using a magnetorheological fluid medium according to the present invention. When the hydraulic retarder works, the control unit 20 determines the output air pressure of the pressure regulating valve 17 through selection of two working modes, namely a braking mode and a slow speed mode, when the hydraulic retarder works in the braking mode, the pressure regulating valve 17 regulates the pressure to be high pressure, the working liquid is quickly pressed into the retarder, the liquid filling rate in the retarder is enabled to be maximum, the maximization of braking torque is achieved, and torque meeting braking requirements is provided for wheels. When the vehicle works in the retarding mode, the pressure regulating valve 17 regulates the pressure to be medium pressure and low pressure, and the working fluid entering the retarding mode is partially filled, so that the braking performance meets the torque requirement of the retarding mode. After two kinds of mode instructions are given, two-way solenoid valve 18 receives the switching signal of the control unit 20, and compressed air gets into and supports axle housing 1, goes into heat dissipation water tank 13 with the working fluid then gets into and takes place energy conversion in the hydraulic retarber, brakies, and high temperature working fluid gets into the gear box afterwards and for the gear lubrication then through check valve 10 return to support in the axle housing 1, then gets into heat dissipation water tank heat dissipation, and the liquid after the cooling gets into next circulation. When the work is stopped, the control unit 20 stops supplying power to the electromagnetic valve 18, the air pressure stops supplying, the pressure relief valve 19 is opened at the same time, the pressure inside the supporting axle housing 1 is reduced, the rotor 5 of the hydraulic retarder throws out liquid, and the liquid in the gear phase is discharged by the water pump blade 8-2 on the hub 8, so that the gear phase reaches a proper lubricating liquid level. The retarder is internally provided with no working fluid, and theoretically, no or only a small moment is generated.
The invention is to be considered as illustrative and not restrictive, and the appended claims are intended to cover all such modifications, equivalents, and improvements as fall within the true spirit and scope of the invention.
Claims (8)
1. The utility model provides a trailer is with braking and slow speed integral type support bridge which characterized in that: the hydraulic retarder comprises a supporting axle housing part, a hydraulic retarder part, a speed increasing mechanism part, a heat dissipation circulating system and a control module; the hydraulic retarder part, the speed increasing mechanism part, the heat dissipation circulating system and the control module are all arranged on the supporting bridge shell part, and the hydraulic retarder part and the speed increasing mechanism part are all connected with the heat dissipation circulating system and the control module;
the supporting bridge part comprises a supporting axle housing, a wheel hub and an end cover; the hub is arranged on the supporting axle housing through a bearing, and the end cover is connected with the hub;
the hydraulic retarder part comprises a left stator impeller, a right stator impeller and a rotor impeller, wherein the left stator impeller, the right stator impeller and the rotor impeller are all in blade structures, an inlet and an outlet of working fluid exist on the stator impeller, and the rotor impeller rotates along with a shaft;
the speed increasing mechanism comprises a sun gear, a planet gear and a gear ring, the planet gear is arranged on a static right stator impeller, the gear ring is combined with an original brake drum, and power is transmitted to the sun gear through the gear ring and the planet gear to increase speed.
2. The integrated braking and retarding support bridge for a trailer according to claim 1, wherein: the whole bridge is not provided with a friction braking mechanism and a brake drum, and the hydraulic retarder provides braking force for the whole bridge.
3. The integrated braking and retarding support bridge for a trailer according to claim 1, wherein: a stator impeller and a rotor impeller of the hydraulic retarder form a left working chamber and a right working chamber, a certain gap is kept between the left stator impeller and the rotor impeller, and a certain gap is kept between the right stator impeller and the rotor impeller.
4. The integrated braking and retarding support bridge for a trailer according to claim 1, wherein: the hydraulic retarder and the planetary gear speed increasing mechanism are integrally designed, one side of the rotor impeller is designed into a sun gear, and the right stator impeller and the gear ring are designed in a fusion mode.
5. The integrated braking and retarding support bridge for a trailer according to claim 1, wherein: the blades of the stator impeller and the rotor impeller are straight blades, inclined blades or arc-shaped blades.
6. The integrated braking and retarding support bridge for a trailer according to claim 1, wherein: the hub is distributed with a certain number of planetary gear shafts and water pump blades, the planetary gear shafts are used for fixing the planetary gears, and the water pump blade structure can reduce the pressure in the gear box and ensure the liquid flow.
7. The integrated braking and retarding support bridge for a trailer according to claim 1, wherein: the braking torque of the hydraulic retarder controls the braking torque through compressed air, and the retarder is opened and closed.
8. The integrated braking and retarding support bridge for a trailer according to claim 1, wherein: when the heat dissipation circulation system and the control module work, the control unit determines the output air pressure of the pressure regulating valve through the selection of two working modes of braking and slow speed, when the heat dissipation circulation system and the control module work in the braking mode, the pressure regulating valve regulates the pressure into high pressure, the working liquid is quickly pressed into the retarder, the liquid filling rate in the retarder is enabled to be maximum, the maximization of braking torque is realized, and torque meeting the braking requirement is provided for wheels; when the hydraulic brake works in a retarding mode, the pressure regulating valve regulates the pressure to be medium pressure and low pressure, and the working fluid entering the retarding mode is partially filled with the fluid, so that the braking performance meets the torque requirement of the retarding mode; after two modes are ordered, the two-position two-way electromagnetic valve receives a switching signal of the control unit, compressed air enters the supporting axle housing, working fluid is pressed into the heat dissipation water tank and then enters the hydraulic retarder to generate energy conversion for braking, high-temperature working fluid then enters the gear box to lubricate the gear and then returns to the supporting axle housing through the one-way valve, then enters the heat dissipation water tank to dissipate heat, and cooled fluid enters the next circulation; when the work is stopped, the control unit stops supplying power to the electromagnetic valve, the air pressure stops supplying, the pressure relief valve is opened at the same time, the pressure in the supporting axle housing is reduced, the rotor of the hydraulic retarder throws out liquid, and the liquid in the gear phase is discharged by the water pump blade on the hub to reach the lubricating liquid level; the retarder is internally provided with no working liquid, and does not generate or only generates a small moment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910967841.2A CN110682739B (en) | 2019-10-12 | 2019-10-12 | Braking and retarding integrated supporting bridge for trailer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910967841.2A CN110682739B (en) | 2019-10-12 | 2019-10-12 | Braking and retarding integrated supporting bridge for trailer |
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| CN110682739A true CN110682739A (en) | 2020-01-14 |
| CN110682739B CN110682739B (en) | 2021-07-16 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120640A (en) * | 2020-01-19 | 2020-05-08 | 金鹰重型工程机械有限公司 | Axle gear box with retarder for rolling stock |
| CN113246659A (en) * | 2021-06-22 | 2021-08-13 | 中国重汽集团济南动力有限公司 | Multi-axle chassis for road transport vehicle |
| CN113323973A (en) * | 2021-06-29 | 2021-08-31 | 吉林大学 | Hydraulic retarder with rotor with device for reducing no-load loss |
| CN114033817A (en) * | 2021-11-12 | 2022-02-11 | 北京科技大学 | Self-cooling hydraulic retarder for heavy vehicle |
| CN114633281A (en) * | 2022-02-28 | 2022-06-17 | 浙江大学 | Anti-side-tipping high-power-density robot joint driving unit |
| WO2023161732A1 (en) * | 2023-01-16 | 2023-08-31 | Foroomadi Erfan | Mechatronic system for increasing drag force in the trailer |
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| US4846316A (en) * | 1987-04-15 | 1989-07-11 | Akebono Brake Industry Co., Ltd. | Hydraulic retarder attached with parking brake |
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| CN108462364A (en) * | 2018-02-10 | 2018-08-28 | 北京工业大学 | A kind of bridge configuration liquid replies conjunction retarder by cable |
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| CN111120640A (en) * | 2020-01-19 | 2020-05-08 | 金鹰重型工程机械有限公司 | Axle gear box with retarder for rolling stock |
| CN111120640B (en) * | 2020-01-19 | 2024-05-28 | 金鹰重型工程机械股份有限公司 | Axle gear box with retarder for rolling stock |
| CN113246659A (en) * | 2021-06-22 | 2021-08-13 | 中国重汽集团济南动力有限公司 | Multi-axle chassis for road transport vehicle |
| CN113246659B (en) * | 2021-06-22 | 2022-12-09 | 中国重汽集团济南动力有限公司 | Multi-axle chassis for road transport vehicle |
| CN113323973A (en) * | 2021-06-29 | 2021-08-31 | 吉林大学 | Hydraulic retarder with rotor with device for reducing no-load loss |
| CN113323973B (en) * | 2021-06-29 | 2022-01-28 | 吉林大学 | Hydraulic retarder with rotor with device for reducing no-load loss |
| CN114033817A (en) * | 2021-11-12 | 2022-02-11 | 北京科技大学 | Self-cooling hydraulic retarder for heavy vehicle |
| CN114033817B (en) * | 2021-11-12 | 2022-09-20 | 北京科技大学 | Self-cooling hydraulic retarder for heavy vehicle |
| CN114633281A (en) * | 2022-02-28 | 2022-06-17 | 浙江大学 | Anti-side-tipping high-power-density robot joint driving unit |
| CN114633281B (en) * | 2022-02-28 | 2023-12-29 | 浙江大学 | Anti-roll high-power-density robot joint driving unit |
| WO2023161732A1 (en) * | 2023-01-16 | 2023-08-31 | Foroomadi Erfan | Mechatronic system for increasing drag force in the trailer |
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