CN111457029B - Vehicle wheel hub internally integrating drum type permanent magnet retarding function - Google Patents
Vehicle wheel hub internally integrating drum type permanent magnet retarding function Download PDFInfo
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- CN111457029B CN111457029B CN202010218001.9A CN202010218001A CN111457029B CN 111457029 B CN111457029 B CN 111457029B CN 202010218001 A CN202010218001 A CN 202010218001A CN 111457029 B CN111457029 B CN 111457029B
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- 230000000979 retarding effect Effects 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 239000010949 copper Substances 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000004146 energy storage Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims 1
- 238000005562 fading Methods 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
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- 239000003638 chemical reducing agent Substances 0.000 description 1
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- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
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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
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
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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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
Abstract
The invention discloses a vehicle hub internally integrated with a drum-type permanent magnet retarding function, which comprises a hub, a friction braking assembly and a permanent magnet retarding braking assembly, wherein the friction braking assembly is used for mainly braking the hub, the permanent magnet retarding braking assembly is used for assisting in braking the hub, the hub is in transmission connection with a half shaft, the permanent magnet retarding braking assembly comprises a rotor drum fixed on the hub, a magnet support rotatably arranged on the half shaft and a friction mechanism used for braking the magnet support, a copper-coated layer is arranged on the rotor drum, a plurality of permanent magnets are fixed on the magnet support, and the positions of the permanent magnets correspond to the positions of the copper-coated layer. The invention shares the braking energy by using the non-contact permanent magnet brake, thereby reducing the abrasion of the friction brake and improving the heat fading resistance of the vehicle brake.
Description
Technical Field
The invention relates to the technical field of vehicle braking, in particular to a vehicle hub internally integrated with a drum type permanent magnet retarding function.
Background
The brake system is one of the important components of the automobile chassis and is directly related to the comprehensive performance and life and property safety of the automobile. Although the traditional hydraulic and pneumatic brake system can meet various requirements of the existing brake laws and regulations, the traditional hydraulic and pneumatic brake system has the defects of complex pipeline arrangement, dependence on a vacuum power assisting device, slow brake response speed, incapability of actively adjusting brake torque, difficulty in integrated control with other systems and the like, and is not suitable for the development requirements of automobiles.
When the vehicle is continuously braked for a long time, is braked at high strength or is frequently braked, the temperature of a brake disc or a brake drum can be greatly increased, so that the friction factor is reduced, the abrasion degree is increased, and the dangerous heat fading phenomenon that the braking efficiency is partially or even completely lost occurs. Although the application of an anti-lock brake system (ABS), an electronic brake force distribution system (EBD), etc. improves the stability and reliability of vehicle braking, they have little effect on the heat fading phenomenon of friction brakes. At present, many countries including China clearly stipulate that vehicles with more than a certain specification must be provided with auxiliary braking devices, so that the load of a friction brake is effectively shunted, and the braking safety performance of the vehicle is improved. The permanent magnet type retarder is one of auxiliary braking devices, and has the advantages of non-contact, small volume, light weight, low magnet temperature rise, energy conservation, environmental protection and the like. However, the existing permanent magnet retarder is generally arranged behind a transmission or in front of a main speed reducer, and has the problems that only the driving wheels are acted on, the braking torques of the driving wheels at two sides cannot be independently adjusted, the assembly needs space and is relatively difficult, and the permanent magnet retarder is not suitable for high-quality integrated control with friction braking.
The birotor permanent magnet braking and vehicle hub integrated device integrates a birotor permanent magnet retarding braking component and a vehicle hub, can be used for each wheel, and has the advantages of compact structure, convenience in arrangement, easiness in integrated control, good heat fading resistance and the like. However, the dual-rotor permanent magnet braking and vehicle hub integrated device is not mentioned. At present, the most similar related technologies to the patent of the present invention are the invention patent with the publication number "CN 102155508B", a brake and a braking method combining permanent magnet braking and friction braking ", and the invention patent with the publication number" CN109058328B ", a vehicle wheel-side composite braking device integrating permanent magnet braking and friction braking. However, the permanent magnet brake torque provided by the brake is small, and the friction brake and the permanent magnet brake act on the same brake disc, so that the heat fading resistance is improved slightly; the permanent magnet retarding brake assembly is positioned on the inner side of the integrated brake disc, the radius of the permanent magnet braking acting force is small, the generated auxiliary braking torque needs to be improved, and the permanent magnet braking torque adjusting device is complex. Furthermore, both of the above are based on the integration of a friction braking device with a permanent magnet braking device, and do not involve the integration of a permanent magnet braking device with a vehicle hub.
Disclosure of Invention
The invention provides a vehicle wheel hub integrated with a drum-type permanent magnet retarding function inside, which comprises a wheel hub, a friction braking assembly for mainly braking the wheel hub and a permanent magnet retarding braking assembly for assisting in braking the wheel hub, wherein the wheel hub is in transmission connection with a half shaft, the permanent magnet retarding braking assembly comprises a rotor drum fixed on the wheel hub, a magnet support rotatably arranged on the half shaft and a friction mechanism for braking the magnet support, a copper-clad layer is arranged on the rotor drum, a plurality of permanent magnets are fixed on the magnet support, and the positions of the permanent magnets correspond to the positions of the copper-clad layer.
Preferably, the friction brake assembly comprises a friction block, a first brake disc and a first brake caliper body fixedly arranged in the wheel hub, the first brake disc is fixed on the half shaft, and the friction block is oppositely arranged in the first brake caliper body and used for braking the first brake disc. The two friction blocks move relatively under the driving of the power mechanism (the power mechanism can be an electronic mechanical mechanism or an electronic hydraulic mechanism), the first brake disc is braked, and the first brake disc is fixed on the half shaft, so that the rotating speed of the half shaft is reduced, and the purpose of braking is finally achieved.
Furthermore, the friction mechanism comprises a friction plate, a second brake disc and a second brake caliper body fixedly arranged in the wheel hub, the second brake disc is fixedly connected with the magnet support, the second brake disc is rotatably arranged on the half shaft, and the friction plate is oppositely arranged in the second brake caliper body and used for braking the second brake disc. The friction disc relatively moves under the driving of the power mechanism (the power mechanism can be an electronic mechanical mechanism or an electronic hydraulic mechanism), the second brake disc compresses the second brake disc, the rotating speed of the second brake disc is reduced, and the purpose of braking the second brake disc is finally achieved.
Preferably, the brake disc two is rotatably provided on the axle shaft by a rolling bearing.
Further, the magnet support is the cylinder, the magnet support includes connecting portion and installation department, be fixed with a plurality of in the installation department outer wall circumferencial direction the permanent magnet, adjacent two the polarity of permanent magnet is opposite, a plurality of ventilation holes have been seted up on the connecting portion, connecting portion with two fixed connection of brake disc. The ventilation hole is used for quickly dissipating heat, and the connecting part is fixedly connected with the second brake disc through the sleeve.
Preferably, the rotor drum is cylindrical, the rotor drum and the magnet support are coaxially arranged, the copper-clad layer is arranged on one surface, close to the permanent magnet, of the rotor drum, and radiating blades are arranged at one end, far away from the hub, of the rotor drum. The rotor drum is provided with spiral radiating blades, so that heat generated by the cutting magnetic field can be taken away conveniently. Because the rotor drum is fixed on the hub, the rotor drum rotates along with the rotation of the hub, the magnet bracket is also fixed by the second brake disc, the copper-coated layer and the permanent magnet work in a matching mode, and the copper-coated layer moves to cut magnetic field lines, so that an eddy current effect is generated, a permanent magnet braking torque is finally generated, and the rotating speed of the hub is reduced. The size of the copper layer coated on the rotor drum is close to the width of a wheel, the space in the wheel hub is fully utilized, the action radius of the permanent magnet braking force is larger, and the permanent magnet braking torque is increased.
Further, in order to prevent the rotor drum from interfering with the magnet holder, a gap of 1mm is provided between the copper-clad layer and the permanent magnet.
Preferably, the rotor drum is fixed to the hub by a heat insulating element in order to prevent heat from being transferred to the hub.
Further, still include hydraulic braking device, hydraulic braking device includes reservoir, energy storage ware, oil pump, relief valve, oil feed solenoid valve one, the solenoid valve of producing oil one, oil feed solenoid valve two and the solenoid valve of producing oil two, the energy storage ware passes through the oil pump with the reservoir intercommunication, the reservoir still be equipped with the bypass with the energy storage ware intercommunication, be equipped with the relief valve on the bypass, the reservoir pass through the pipeline respectively with the solenoid valve of producing oil one and two intercommunications of the solenoid valve of producing oil, the energy storage ware pass through the pipeline respectively with oil feed solenoid valve one and two intercommunications of oil feed solenoid valve, oil feed solenoid valve one and one of the solenoid valve of producing oil with friction braking subassembly hydraulic transmission is connected, oil feed solenoid valve two and two of the solenoid valve of producing oil with friction mechanism hydraulic transmission is connected. The accumulator is a high-pressure accumulator, a pressure sensor is arranged on the accumulator, and when the pressure of the accumulator is lower than a set value, the oil pump works to press brake fluid in the reservoir to the accumulator. When the pressure of the energy accumulator is higher than the upper limit value, the pressure relief valve is conducted, and the brake fluid in the energy accumulator flows into the liquid accumulator to protect the system. The two oil inlet electromagnetic valves and the two oil outlet electromagnetic valves are linear control electromagnetic valves, and the larger the obtained electric signal is, the larger the opening section of the electric signal is. When the oil inlet electromagnetic valve is electrified and opened, high-pressure brake fluid in the energy accumulator enters a brake wheel cylinder of the friction block or the friction plate, the brake pressure of the brake wheel cylinder is increased, and the friction block is pushed to press the brake disc I or the friction plate is pushed to press the brake disc II.
Has the advantages that: 1. the invention shares the braking energy by using the non-contact permanent magnet brake, thereby reducing the abrasion of the friction brake and improving the heat fading resistance of the vehicle brake;
2. compared with the traditional permanent magnet retarder, the permanent magnet retarder has the advantages of compact structure, easiness in arrangement, small change on the structure of the original automobile system, capability of acting permanent magnet braking torque on each wheel of a vehicle and the like;
3. the rotor drum is fixedly connected with the hub through the heat insulation element, the action radius of the permanent magnet brake force is larger while the brake heat is prevented from being transferred to the hub, so that the permanent magnet brake torque is increased, and the non-contact and low-energy-consumption permanent magnet brake effect is fully exerted;
4. the integrated device of the invention can jointly control the permanent magnet braking torque and the friction braking torque, fully exerts the permanent magnet retarding braking action, and has the advantages of small volume, light weight, low energy consumption, suitability for high-quality integrated control and the like.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the permanent magnet installation of the present invention;
FIG. 3 is a schematic structural diagram of the hydraulic brake device of the present invention;
1. a wheel; 2. a first brake caliper body; 3. a friction block; 4. a second brake caliper body; 5. a half shaft; 6. a first brake disc; 7. a second brake disc; 8. an insulating element; 9. a rotor drum; 10. a permanent magnet; 11. an installation part; 12. a connecting portion; 13. a hub; 14. a half shaft flange; 15. coating a copper layer; 16. a magnet holder; 17. an oil pump; 18. a reservoir; 19. a pressure relief valve; 20. an oil outlet solenoid valve I; 21. an oil inlet electromagnetic valve I; 22. an oil outlet electromagnetic valve; 23. an oil inlet electromagnetic valve II; 24. an accumulator; 25. a friction plate; 26. a sleeve.
Detailed Description
Example one
As shown in fig. 1, a vehicle hub with an internal integrated drum type permanent magnet retarding function comprises a hub 13, a friction brake assembly for mainly braking the hub 13 and a permanent magnet retarding brake assembly for secondarily braking the hub 13, wherein the hub 13 is in transmission connection with a half shaft 5, the permanent magnet retarding brake assembly comprises a rotor drum 9 fixed on the hub 13, a magnet support 16 rotatably arranged on the half shaft 5 and a friction mechanism for braking the magnet support 16, a copper-clad layer 15 is arranged on the rotor drum 9, a plurality of permanent magnets 10 are fixed on the magnet support 16, and the positions of the permanent magnets 10 correspond to the positions of the copper-clad layer 15.
The friction brake assembly comprises a friction block 3, a brake disc I6 and a brake caliper body I2 fixedly arranged in the hub 13, the brake disc I6 is fixed on the half shaft 5, and the friction block 3 is oppositely arranged in the brake caliper body I2 and used for braking the brake disc I6. The friction mechanism comprises a friction plate 25, a second brake disc 7 and a second brake caliper body 4 fixedly arranged in the wheel hub 13, the second brake disc 7 is fixedly connected with the magnet support 16, the second brake disc 7 is rotatably arranged on the half shaft 5, and the friction plate 25 is oppositely arranged in the second brake caliper body 4 and used for braking the second brake disc 7. The second brake disc 7 is rotatably arranged on the half shaft 5 through a rolling bearing. The present embodiment brakes the axle shaft 5 and the magnet holder 16, respectively, by means of a friction brake assembly and a friction mechanism.
In order to prevent the rotor drum 9 from interfering with the magnet holder 16, a gap of 1mm is provided between the copper-clad layer 15 and the permanent magnet 10. The copper-clad layer 15 is close to the permanent magnet 10, so that the permanent magnet braking torque is larger, and the non-contact and low-energy-consumption permanent magnet braking effect is fully exerted. The gap distance is too large, the generated braking torque becomes small, and the gap distance is too small, which affects the rotation of the magnet holder 16, and the gap of 1mm is used in the present embodiment for explanation.
In order to prevent heat from being transferred to the hub 13, the rotor drum 9 is fixed to the hub 13 by a heat insulating element 8.
In the embodiment, the friction mechanism and the friction braking component are controlled by a hydraulic braking device, the hydraulic braking device comprises a liquid storage device 18, an energy accumulator 24, an oil pump 17, a pressure release valve 19, a first oil inlet electromagnetic valve 21, a first oil outlet electromagnetic valve 20, a second oil inlet electromagnetic valve 23 and a second oil outlet electromagnetic valve 22, the accumulator 24 is communicated with the liquid storage device 18 through the oil pump 17, the liquid storage device 18 is also provided with a bypass and communicated with the accumulator 24, a pressure release valve 19 is arranged on the bypass, the liquid reservoir 18 is respectively communicated with the first oil outlet electromagnetic valve 20 and the second oil outlet electromagnetic valve 22 through pipelines, the energy accumulator 24 is respectively communicated with the oil inlet electromagnetic valve I21 and the oil inlet electromagnetic valve II 23 through pipelines, the first oil inlet electromagnetic valve 21 and the first oil outlet electromagnetic valve 20 are in hydraulic transmission connection with the friction braking assembly, and the oil inlet solenoid valve II 23 and the oil outlet solenoid valve II 22 are in hydraulic transmission connection with the friction mechanism. The accumulator 24 is a high pressure accumulator 24 on which a pressure sensor is provided, and the oil pump 17 operates to press the brake fluid in the reservoir 18 toward the accumulator 24 when the pressure of the accumulator 24 is lower than a set value. When the pressure of the accumulator 24 is higher than the upper limit value, the relief valve 19 is opened, and the brake fluid in the accumulator 24 flows into the reservoir 18, thereby protecting the system. 2 oil feed solenoid valves and 2 oil outlet solenoid valves all adopt the linear control solenoid valve, and the bigger the signal of telecommunication that obtains its opening cross-section is bigger. When the oil inlet electromagnetic valve is electrified and opened, high-pressure brake fluid in the energy accumulator 24 enters the brake wheel cylinder of the friction block 3 or the friction plate 25, the brake pressure of the brake wheel cylinder is increased, and the friction block 3 is pushed to press the brake disc I6 or the friction plate 25 is pushed to press the brake disc II 7. In this embodiment, the first oil inlet solenoid valve 21 and the first oil outlet solenoid valve 20 are solenoid valves with larger flow systems, which can provide the braking speed of the friction block 3, and the second oil inlet solenoid valve 23 and the second oil outlet solenoid valve 22 are also solenoid valves with larger flow coefficients, which can improve the response speed of the brake magnet support 16.
The wheel 1 is fixed on a wheel hub 13, and the wheel hub 13 is in transmission connection with the half shaft 5 through a half shaft flange 14.
The working principle is as follows: when the automobile brakes at low speed and low braking strength, the friction mechanism does not work, namely the magnet support 16 freely rotates along with the second brake disc 7, the permanent magnet retarding brake assembly does not work, and the vehicle is provided with braking torque by the friction brake assembly. When the vehicle speed and the brake strength reach a certain value, the permanent magnet retarding brake assembly is matched with the friction brake assembly to start working, the oil inlet electromagnetic valve II 23 is electrified, the friction plate 25 of the friction mechanism is controlled to press towards the brake disc II 7, the brake disc II 7 is fixed, the magnet support 16 is fixed, the rotor drum 9 continues to rotate along with the rotation of the hub 13, the copper coating layer 15 on the rotor drum 9 cuts magnetic field lines of the permanent magnet 10 on the magnet support 16, an eddy current effect is generated, a permanent magnet brake torque is generated, and therefore partial brake energy is shared, the abrasion of the friction brake is reduced, and the heat fading resistance performance of the friction brake is improved. If the permanent magnet braking torque is insufficient or the vehicle speed is reduced to a certain value, the oil inlet electromagnetic valve I21 controls the friction block 3 of the friction braking assembly to press the brake disc I6, and braking is achieved. In the braking process of the vehicle, the friction braking component and the permanent magnet braking component work in a matching way, so that the advantages of the friction braking component and the permanent magnet braking component are fully exerted, and the braking performance of the vehicle and the heat fading resistance of the brake are improved.
Claims (8)
1. The utility model provides a vehicle wheel hub of inside integrated drum-type permanent magnetism retarding function which characterized in that: the brake device comprises a hub (13), a friction brake assembly and a permanent magnet retarding brake assembly, wherein the friction brake assembly is used for mainly braking the hub (13) and assisting in braking the hub (13), the hub (13) is in transmission connection with a half shaft (5), the permanent magnet retarding brake assembly comprises a rotor drum (9) fixed on the hub (13), a magnet support (16) rotatably arranged on the half shaft (5) and a friction mechanism used for braking the magnet support (16), a copper-coated layer (15) is arranged on the rotor drum (9), a plurality of permanent magnets (10) are fixed on the magnet support (16), and the positions of the permanent magnets (10) correspond to the position of the copper-coated layer (15); still include hydraulic braking device, hydraulic braking device includes reservoir (18), energy storage ware (24), oil pump (17), relief valve (19), oil feed solenoid valve (21), the solenoid valve of producing oil (20), oil feed solenoid valve two (23) and the solenoid valve of producing oil (22), energy storage ware (24) are passed through oil pump (17) with reservoir (18) intercommunication, reservoir (18) still be equipped with the bypass with energy storage ware (24) intercommunication, be equipped with relief valve (19) on the bypass, reservoir (18) pass through the pipeline respectively with the solenoid valve of producing oil (20) and the solenoid valve of producing oil (22) intercommunication, energy storage ware (24) pass through the pipeline respectively with oil feed solenoid valve (21) and two (23) intercommunications of oil feed solenoid valve, oil feed solenoid valve (21) and solenoid valve of producing oil (20) with friction braking subassembly hydraulic drive is connected, and the oil inlet solenoid valve II (23) and the oil outlet solenoid valve II (22) are in hydraulic transmission connection with the friction mechanism.
2. The vehicle hub with the internal integrated drum type permanent magnet retarding function as claimed in claim 1, wherein: the friction brake assembly comprises a friction block (3), a brake disc I (6) and a brake caliper body I (2) fixedly arranged in the hub (13), the brake disc I (6) is fixed on the half shaft (5), and the friction block (3) is oppositely arranged in the brake caliper body I (2) and used for braking the brake disc I (6).
3. The vehicle hub with the internal integrated drum type permanent magnet retarding function as claimed in claim 1, wherein: the friction mechanism comprises a friction plate (25), a brake disc II (7) and a brake caliper body II (4) fixedly arranged in the hub (13), the brake disc II (7) is fixedly connected with the magnet support (16), the brake disc II (7) is rotatably arranged on the half shaft (5), and the friction plate (25) is oppositely arranged in the brake caliper body II (4) and used for braking the brake disc II (7).
4. The vehicle hub with the internal integrated drum type permanent magnet retarding function as claimed in claim 3, wherein: and the second brake disc (7) is rotationally arranged on the half shaft (5) through a rolling bearing.
5. The vehicle hub with the internal integrated drum type permanent magnet retarding function as claimed in claim 3, wherein: magnet support (16) are the cylinder, magnet support (16) are including connecting portion (12) and installation department (11), be fixed with a plurality ofly on installation department (11) outer wall circumferencial direction permanent magnet (10), adjacent two the polarity of permanent magnet (10) is opposite, a plurality of ventilation holes have been seted up on connecting portion (12), connecting portion (12) with two (7) fixed connection of brake disc.
6. The vehicle hub with the internal integrated drum type permanent magnet retarding function as claimed in claim 5, wherein: rotor drum (9) are the cylinder, rotor drum (9) with magnet support (16) coaxial line sets up, rotor drum (9) are close to the one side of permanent magnet (10) is equipped with cover copper layer (15), rotor drum (9) are kept away from the one end of wheel hub (13) is equipped with radiator vane.
7. The vehicle hub with the internal integrated drum type permanent magnet retarding function as claimed in claim 6, wherein: and a 1mm gap is formed between the copper-coated layer (15) and the permanent magnet (10).
8. The vehicle hub with the internal integrated drum type permanent magnet retarding function as claimed in claim 1 or 6, wherein: the rotor drum (9) is fixed to the hub (13) by means of a heat-insulating element (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010218001.9A CN111457029B (en) | 2020-03-25 | 2020-03-25 | Vehicle wheel hub internally integrating drum type permanent magnet retarding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010218001.9A CN111457029B (en) | 2020-03-25 | 2020-03-25 | Vehicle wheel hub internally integrating drum type permanent magnet retarding function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111457029A CN111457029A (en) | 2020-07-28 |
| CN111457029B true CN111457029B (en) | 2022-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010218001.9A Active CN111457029B (en) | 2020-03-25 | 2020-03-25 | Vehicle wheel hub internally integrating drum type permanent magnet retarding function |
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| Country | Link |
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| CN (1) | CN111457029B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482080A (en) * | 2014-11-14 | 2015-04-01 | 江苏大学 | Electromagnetic and friction integrated brake system and control method thereof |
| JP2015070715A (en) * | 2013-09-30 | 2015-04-13 | 新日鐵住金株式会社 | Eddy-current type speed reducer |
| CN109017271A (en) * | 2018-10-10 | 2018-12-18 | 核心驱动科技（金华）有限公司 | A kind of electric car and its power drive unit |
| CN109058328A (en) * | 2018-08-13 | 2018-12-21 | 江苏大学 | A kind of vehicle wheel side composite braking device of integral permanent-magnet braking and friction catch |
| CN209037379U (en) * | 2018-11-22 | 2019-06-28 | 核心驱动科技（金华）有限公司 | A kind of wheel motor drive device |
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2020
- 2020-03-25 CN CN202010218001.9A patent/CN111457029B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2015070715A (en) * | 2013-09-30 | 2015-04-13 | 新日鐵住金株式会社 | Eddy-current type speed reducer |
| CN104482080A (en) * | 2014-11-14 | 2015-04-01 | 江苏大学 | Electromagnetic and friction integrated brake system and control method thereof |
| CN109058328A (en) * | 2018-08-13 | 2018-12-21 | 江苏大学 | A kind of vehicle wheel side composite braking device of integral permanent-magnet braking and friction catch |
| CN109017271A (en) * | 2018-10-10 | 2018-12-18 | 核心驱动科技（金华）有限公司 | A kind of electric car and its power drive unit |
| CN209037379U (en) * | 2018-11-22 | 2019-06-28 | 核心驱动科技（金华）有限公司 | A kind of wheel motor drive device |
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| CN111457029A (en) | 2020-07-28 |
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Effective date of registration: 20231206 Address after: Factory Building 16, Intelligent Equipment Industrial Park, No. 511 Huangpu River North Road, Zhoushi Town, Kunshan City, Suzhou City, Jiangsu Province, 215314 Patentee after: SUZHOU DEYOUHAO AUTOMATION EQUIPMENT CO.,LTD. Address before: 213001 No. 1801 Wu Cheng Road, Changzhou, Jiangsu Patentee before: JIANGSU University OF TECHNOLOGY |