CN113787993B - Pressing type emergency braking device and method for new energy automobile - Google Patents
Pressing type emergency braking device and method for new energy automobile Download PDFInfo
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- CN113787993B CN113787993B CN202111343317.1A CN202111343317A CN113787993B CN 113787993 B CN113787993 B CN 113787993B CN 202111343317 A CN202111343317 A CN 202111343317A CN 113787993 B CN113787993 B CN 113787993B
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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
- B60T5/00—Vehicle modifications to facilitate cooling of brakes
Abstract
The invention relates to the field of braking of new energy automobiles, in particular to a downward-pressing type emergency braking device and a braking method for a new energy automobile, which comprise a bottom plate, a motor top plate, an installation plate, a servo motor, a rotating shaft and the like; bottom plate top surface rear side fixed mounting has the motor roof, and bottom plate middle part fixed mounting has the mounting panel, and bottom plate top surface rear side fixed mounting has servo motor, and servo motor is located motor roof below, the inside axis of rotation that is equipped with of servo motor. Through the cooperation of one-level friction speed reduction ring and second grade friction speed reduction ring, one-level friction speed reduction ring and second grade friction speed reduction ring all play the speed reduction brake effect with the contact of fixed carousel for fixed carousel and axis of rotation speed reduction stop, can avoid the axis of rotation by wearing and tearing simultaneously, thereby increase servo motor's life.
Description
Technical Field
The invention relates to the field of braking of new energy automobiles, in particular to a pressing type emergency braking device and a braking method for a new energy automobile.
Background
With the continuous development of new energy automobiles, environmental protection electric automobiles driven by electric power are increasingly emphasized, so that the new energy automobiles are rapidly developed, the new energy automobiles are automobiles which adopt unconventional automobile fuel as a power source, a brake braking system is an indispensable configuration of modern vehicles, and the automobile braking system is a series of special devices which apply certain force to certain parts of the automobiles so as to perform certain degree of forced braking on the automobiles to perform the function of forcibly decelerating or even stopping the running automobiles according to the requirements of drivers.
The brake block is adopted as the brake part usually to current braking system, brake performance is relatively poor, long-time use electronic brake can shorten motor life, cause the motor demagnetization serious, and can produce friction loss at the braking process, these losses outwards disperse with thermal form, and then the phenomenon of power way decay can appear, brake performance can weaken greatly under the circumstances of high fever, can't provide sufficient braking power way, and the extension braking distance can arouse the brake failure if break limit temperature, there is great potential safety hazard.
Disclosure of Invention
The invention aims to provide a press-down emergency braking device for a new energy automobile and a braking method, wherein the press-down emergency braking device is used for braking by utilizing hydraulic acting force, can perform multi-stage braking stop on the automobile and can perform heat dissipation on a braking part, so that the defects that the existing device adopts a brake pad as the braking part, the braking performance is poor, and the service life of a motor is shortened due to long-time use of an electronic brake are overcome.
The technical scheme is as follows: the utility model provides a new energy automobile is with pressing down formula emergency braking device and braking method kind, including the bottom plate, still include: the motor top plate is fixedly arranged on the rear side of the top surface of the bottom plate; the mounting plate is fixedly mounted in the middle of the bottom plate, the servo motor is fixedly mounted on the rear side of the top surface of the bottom plate and located below the motor top plate, and the servo motor is used for driving a rear wheel; the servo motor is internally provided with a rotating shaft which is fixedly connected with a fixed turntable; the mounting plate is connected with a first-stage side surface friction deceleration component in a sliding mode, and the first-stage side surface friction deceleration component is used for playing a role in deceleration and braking by utilizing the friction between the first-stage side surface friction deceleration component and the rotating shaft; the top surface of the front side of the bottom plate is provided with a secondary side surface friction deceleration component which is used for decelerating and braking the rotating shaft by using friction; the middle part of the bottom plate is connected with a rack brake component in a sliding mode, and the rack brake component is used for braking the automobile wheels.
In addition, it is particularly preferable that the side surface of the fixed rotary disk is an uneven plane, the roughness of the fixed rotary disk increases the contact friction force between the fixed rotary disk and the brake component to the maximum extent, and the fixed rotary disk is used for generating friction action through external pressure to decelerate the vehicle.
In addition, particularly preferably, the first-stage side friction speed reducing assembly comprises a hydraulic cylinder, a hydraulic push rod, an extrusion rod, a tension spring, a sliding friction disc, an extrusion spring I, a sliding rod I, a compression spring I and a first-stage friction speed reducing ring, the hydraulic cylinder is symmetrically and fixedly installed on a top plate of the motor, the hydraulic push rod is slidably connected above the hydraulic cylinder, the extrusion rod is slidably connected below the hydraulic cylinder, the tension spring is connected between the extrusion rod and the hydraulic cylinder, the sliding friction disc is slidably connected on the mounting plate, the rotating shaft is rotatably connected with the sliding friction disc, the extrusion spring I is sleeved on the sliding friction disc, one end of the extrusion spring is contacted with the mounting plate, four sliding rod I are slidably connected on the sliding friction disc in a circumferential distribution manner, the first-stage friction speed reducing ring is fixedly connected on the four sliding rod I together, and two pairs of compression springs I are connected between the first-stage friction speed reducing ring and the sliding friction disc, the first sliding rod penetrates through the first compression spring.
In addition, particularly preferably, the second-stage side friction deceleration component comprises a pushing groove rod, a fixing main frame, a swinging rod, a first torsion spring, a fixing support, a sliding push frame, a second sliding rod, a second-stage friction deceleration ring and a second compression spring, the mounting plate is connected with the pushing groove rod in a sliding manner, the pushing groove rod is contacted with the sliding friction disk, the fixing main frame is fixedly installed on the top surface of the front side of the bottom plate, the swinging rod is symmetrically and rotatably connected onto the fixing main frame, a pair of first torsion springs is connected between the swinging rod and the fixing main frame, the fixing support is fixedly connected to the front side of the fixing main frame, the sliding push frame is connected with the sliding push frame in a sliding manner, the sliding push frame is in limit fit with the swinging rod, four second sliding rods are slidably connected onto the sliding push frame in a circumferentially distributed manner, the second-stage friction deceleration ring is welded onto the four sliding rods jointly, and two pairs of second compression springs are connected between the second friction deceleration ring and the sliding push frame, the second sliding rod penetrates through the second compression spring.
In addition, it is particularly preferred that the rack brake assembly includes a blocking block, a gear ring, a moving frame, a sliding rack block, a fixed guide rod, a second extrusion spring and a return spring, the blocking block is connected to the sliding friction disk in a circumferentially distributed manner, the gear ring is fixedly connected to the sliding friction disk, the moving frame is slidably connected to the middle of the bottom plate, the moving frame is in contact with the pushing slot rod, the sliding rack block is slidably connected to the upper portion of the moving frame, the sliding rack block is meshed with the gear ring, the fixed guide rod is fixedly connected to the sliding rack block, the moving frame is slidably connected to the fixed guide rod, the second extrusion spring is connected between the fixed guide rod and the moving frame, and the return spring is connected between the sliding rack block and the moving frame.
In addition, especially preferred is, still including calliper system and stop the subassembly, remove a rear side and be provided with calliper system and stop the subassembly, calliper system stops the subassembly and includes gim peg, activity calliper, torsion spring two and brake block, removes a rear side fixedly connected with gim peg, and the last rotation type of gim peg is connected with activity calliper, is connected with torsion spring two between activity calliper and the gim peg, and activity calliper middle part is provided with the brake block, and the brake block contacts with the slip friction disk.
In addition, it is especially preferable that the bottom surface of the brake pad is a cambered surface corresponding to the sliding friction disc, and the brake pad is tightly attached to the sliding friction disc during braking, so that the braking effect is fully achieved.
In addition, especially preferred is still including air-cooled radiator unit, and air-cooled radiator unit locates bottom plate top surface front side, and air-cooled radiator unit is including heat dissipation frame and air-cooled mouth, and bottom plate top surface front side fixed mounting has the heat dissipation frame, and the heat dissipation frame is provided with the air-cooled mouth with mounting panel rigid coupling.
In addition, particularly preferably, the device further comprises a motor controller, and the motor controller is fixedly installed in the middle of the bottom plate.
In addition, it is particularly preferable that the braking method of the press-down emergency braking device for the new energy automobile comprises the following working steps:
s1: primary braking: when an emergency occurs, a driver quickly steps on a brake pedal, and the brake device can control the first-stage side surface friction deceleration component to be in friction contact with the fixed turntable, so that the speed reduction and braking effects are achieved, and the fixed turntable and the rotating shaft are decelerated and stopped;
s2: secondary braking: when the primary side surface friction deceleration component brakes the fixed turntable in a friction mode, the secondary side surface friction deceleration component operates and is in contact friction with the fixed turntable to play a role in deceleration braking, and the rotating shaft is further decelerated and stopped;
s3: braking: under the operation of the first-level side friction speed reducing assembly, the rack brake assembly can be controlled to clamp the fixed turntable, so that the fixed turntable and the rotating shaft are stopped;
s4: auxiliary braking: under the operation of the rack brake assembly, the caliper brake assembly clamps the first-stage side friction deceleration assembly, and the motor controller can control the servo motor to stop operating to assist braking;
s5: heat dissipation of parts: in the braking stopping process, the air-cooled radiating assembly is started to blow out cold air to blow away heat on each part, so that the phenomenon of force attenuation caused by serious heating of the part is avoided, and the radiating frame continues to operate for a period of time after the automobile is stopped;
s6: and (3) braking is cancelled: after the automobile stops, a driver releases the brake pedal, the brake device does not generate acting force on the first-level side friction speed reducing assembly any more, so that the first-level side friction speed reducing assembly is controlled to reset, and all parts are reset along with the reset.
The invention has the following advantages:
through the cooperation of one-level friction speed reduction ring and second grade friction speed reduction ring, one-level friction speed reduction ring and second grade friction speed reduction ring all play the speed reduction brake effect with the contact of fixed carousel for fixed carousel and axis of rotation speed reduction stop, can avoid the axis of rotation by wearing and tearing simultaneously, thereby increase servo motor's life.
Through the rebound action of the second extrusion spring and the return spring, the gear ring and the device on the gear ring are clamped by the sliding rack block, so that the fixed turntable is clamped by the blocking block, the fixed turntable and the rotating shaft are stopped, and the purpose of braking is further achieved.
Through the arranged brake pad, the brake pad can apply pressure to the sliding friction disc to stop the sliding friction disc when the stop block clamps the fixed rotary disc, so that the stop block clamps the fixed rotary disc, and the fixed rotary disc and the rotating shaft are stopped indirectly.
Through the air-cooled radiator unit who sets up, can blow the cold air and take away the heat in order to reach the heat dissipation purpose on each spare part, and then avoid the spare part to generate heat the phenomenon that the power is said to decay seriously appears, brake failure when preventing emergency brake next time.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a second embodiment of the present invention.
Fig. 3 is a third perspective view of the present invention.
Fig. 4 is a partial perspective view of the present invention.
FIG. 5 is a schematic view of a first partial body configuration of a one-stage side friction deceleration module according to the present invention.
Fig. 6 is a schematic perspective view, partially in section, of a primary side friction deceleration assembly of the present invention.
FIG. 7 is a schematic view of a second partial body structure of a one-stage side friction deceleration module according to the present invention.
Fig. 8 is a perspective view of a sliding friction disc according to the invention.
FIG. 9 is a schematic view of a first partial body structure of the two-stage side friction deceleration assembly of the present invention.
FIG. 10 is a schematic view of a second partial body structure of the two-stage side friction deceleration assembly of the present invention.
Fig. 11 is a partially disassembled perspective view of the two-stage side friction deceleration assembly of the present invention.
Fig. 12 is a perspective view of the rack brake assembly of the present invention.
Fig. 13 is a schematic perspective view of the movable frame and the sliding rack block according to the present invention.
FIG. 14 is a perspective view of the caliper brake assembly of the present invention.
Fig. 15 is a schematic perspective view of an air-cooled heat dissipating assembly according to the present invention.
FIG. 16 is a schematic diagram of the working steps of the present invention.
In the figure: 1. a bottom plate, 2, a motor top plate, 3, a mounting plate, 4, a servo motor, 5, a rotating shaft, 6, a fixed turntable, 7, a primary side friction deceleration component, 71, a hydraulic cylinder, 72, a hydraulic push rod, 73, an extrusion rod, 74, a tension spring, 75, a sliding friction disc, 76, a first extrusion spring, 77, a sliding rod I, 78, a first compression spring, 79, a primary friction deceleration ring, 8, a secondary side friction deceleration component, 81, a push groove rod, 82, a fixed main frame, 83, a swing rod, 84, a torsion spring I, 85, a fixed bracket, 86, a sliding push frame, 87, a sliding rod II, 88, a secondary friction deceleration ring, 89, a second compression spring, 9, a rack brake component, 91, a blocking block, 92, a gear ring, 93, a moving frame, 94, a sliding rack block, 95, a fixed guide rod, 96, an extrusion spring II, 97, a return spring, 10, 9, a sliding guide rod, a rack brake component, 91, a blocking block, a fixed guide rod, a swing rod, the brake device comprises a caliper stop component 101, a fixing bolt 102, a movable caliper 103, a torsion spring II 104, a brake pad 11, an air-cooled heat dissipation component 111, a heat dissipation frame 112, an air-cooled port 12 and a motor controller.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1
A downward-pressing emergency braking device and a braking method for a new energy automobile are disclosed, as shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7, FIG. 8, FIG. 9, FIG. 10, FIG. 11, FIG. 12, FIG. 13, FIG. 14, FIG. 15 and FIG. 16, which comprises a bottom plate 1, a motor top plate 2, a mounting plate 3, a servo motor 4, a rotating shaft 5, a fixed turntable 6, a primary side friction deceleration component 7, a secondary side friction deceleration component 8 and a rack braking component 9, wherein the rear side of the top surface of the bottom plate 1 is fixedly provided with the motor top plate 2, the middle part of the bottom plate 1 is fixedly provided with the mounting plate 3, the rear side of the top surface of the bottom plate 1 is fixedly provided with the servo motor 4 for driving, the servo motor 4 is positioned below the motor top plate 2, the rotating shaft 5 is arranged inside the servo motor 4, the fixed turntable 6 is fixedly connected on the rotating shaft 5, the mounting plate 3 is slidably connected with the primary side friction deceleration component 7, one-level side friction speed reduction assembly 7 is used for utilizing the friction to carry out the speed reduction brake to fixed carousel 6, and 1 front side top surface of bottom plate is provided with second grade side friction speed reduction assembly 8, and second grade side friction speed reduction assembly 8 is used for further carrying out the friction speed reduction to fixed carousel 6 and auto wheel, and 1 middle part sliding type of bottom plate is connected with rack brake assembly 9, and rack brake assembly 9 is used for stopping the car.
The primary side friction deceleration component 7 comprises a hydraulic cylinder 71, a hydraulic push rod 72, an extrusion rod 73, a tension spring 74, a sliding friction disc 75, an extrusion spring I76, a sliding rod I77, a compression spring I78 and a primary friction deceleration ring 79, the hydraulic cylinder 71 is symmetrically and fixedly installed on the motor top plate 2, the hydraulic push rod 72 is slidably connected above the hydraulic cylinder 71, the hydraulic push rod 72 is used for extruding hydraulic oil in the hydraulic cylinder 71, the extrusion rod 73 is slidably connected below the hydraulic cylinder 71, the tension spring 74 is connected between the extrusion rod 73 and the hydraulic cylinder 71, the sliding friction disc 75 is slidably connected on the mounting plate 3, the rotating shaft 5 is rotatably connected with the sliding friction disc 75, the sliding friction disc 75 is sleeved with the extrusion spring I76, one end of the extrusion spring I76 is in contact with the mounting plate 3, and the sliding friction disc 75 is slidably connected with the four sliding rods I77 in a circumferential distribution manner, a first-stage friction speed reducing ring 79 is fixedly connected to the four first sliding rods 77, the first-stage friction speed reducing ring 79 is used for carrying out friction speed reduction on the fixed rotating disc 6, two pairs of first compression springs 78 are connected between the first-stage friction speed reducing ring 79 and the sliding friction disc 75, and the first sliding rods 77 penetrate through the first compression springs 78.
The second-stage side friction deceleration component 8 comprises a pushing groove rod 81, a fixing main frame 82, a swing rod 83, a first torsion spring 84, a fixing support 85, a sliding pushing frame 86, a second sliding rod 87, a second-stage friction deceleration ring 88 and a second compression spring 89, the mounting plate 3 is connected with the pushing groove rod 81 in a sliding mode, the pushing groove rod 81 is in contact with a sliding friction disk 75, the fixing main frame 82 is fixedly installed on the top surface of the front side of the bottom plate 1, the swing rod 83 is symmetrically and rotatably connected on the fixing main frame 82, the pushing groove rod 81 is used for pushing the lower part of the swing rod 83 to swing, a pair of first torsion springs 84 are connected between the swing rod 83 and the fixing main frame 82, the fixing support 85 is fixedly connected on the front side of the fixing main frame 82, the sliding pushing frame 86 is connected on the fixing support 85 in a sliding mode, the sliding pushing frame 86 is in limit fit with the swing rod 83, the swing rod 83 is used for pushing the sliding pushing frame 86 and the upper device to move towards the direction close to the top plate 2 of the motor, the sliding push frame 86 is connected with four sliding rods 87 in a sliding mode in a circumferential distribution mode, two-stage friction speed reducing rings 88 are welded on the four sliding rods 87 together, two pairs of compression springs 89 are connected between the two-stage friction speed reducing rings 88 and the sliding push frame 86, and the sliding rods 87 penetrate through the compression springs 89.
The rack brake assembly 9 comprises a stop block 91, a gear ring 92, a moving frame 93, a sliding rack block 94, a fixed guide rod 95, a second extrusion spring 96 and a return spring 97, wherein the stop block 91 is connected to the sliding friction disc 75 in a circumferential distribution manner, the stop block 91 is used for clamping the fixed turntable 6, the gear ring 92 is fixedly connected to the sliding friction disc 75, the moving frame 93 is connected to the middle of the bottom plate 1 in a sliding manner, the moving frame 93 is in contact with the pushing slotted rod 81, the sliding rack block 94 is connected above the moving frame 93 in a sliding manner, the sliding rack block 94 is used for clamping the gear ring 92 and devices thereon, the sliding rack block 94 is meshed with the gear ring 92, the fixed guide rod 95 is fixedly connected to the sliding rack block 94, the moving frame 93 is connected with the fixed guide rod 95 in a sliding manner, the second extrusion spring 96 is connected between the fixed guide rod 95 and the moving frame 93, and the second extrusion spring 96 is used for clamping the gear ring 92 and devices thereon by the sliding rack block 94 under the spring action, a return spring 97 is connected between the sliding rack block 94 and the moving frame 93.
The device is fixedly arranged behind a frame, hydraulic oil is stored in a hydraulic cylinder 71, a hydraulic push rod 72 is connected with an automobile brake device, two rear wheels are fixedly connected to a rotating shaft 5, and a servo motor 4 drives the rotating shaft 5 and the wheels to rotate in the driving process of an automobile, so that the automobile is driven. When an emergency occurs, a driver quickly steps on a brake pedal, the brake device can push the hydraulic push rod 72 to move downwards, the hydraulic push rod 72 extrudes hydraulic oil in the hydraulic cylinder 71, the hydraulic push extrusion rod 73 moves towards the direction far away from the motor top plate 2, the extrusion rod 73 can push the sliding friction disc 75 and the upper device thereof to move towards the direction far away from the motor top plate 2, the first-stage friction speed reducing ring 79 is in contact with the fixed turntable 6, the speed reducing brake effect is achieved through friction between the first-stage friction speed reducing ring 79 and the fixed turntable 6, and the fixed turntable 6 and the rotating shaft 5 are stopped at a reduced speed. Meanwhile, the sliding friction disc 75 can drive the push slot rod 81 to move towards the direction far away from the motor top plate 2, the push slot rod 81 can drive the moving frame 93 and the upper device thereof to move towards the direction far away from the motor top plate 2, the push slot rod 81 can push the swing rod 83 to swing below, the swing rod 83 can push the sliding push frame 86 and the upper device thereof to move towards the direction close to the motor top plate 2, so that the second-stage friction speed reducing ring 88 is in contact with the fixed turntable 6, the speed reducing and braking effects are achieved through the friction between the second-stage friction speed reducing ring 88 and the fixed turntable 6, the rotating shaft 5 is further decelerated and stopped, the fixed turntable 6 is subjected to friction speed reduction through the first-stage friction speed reducing ring 79 and the second-stage friction speed reducing ring 88, and the rotating shaft 5 can be prevented from being abraded.
When the sliding friction disc 75 and the upper device thereof move towards the direction far away from the top plate 2 of the motor, the blocking block 91 can be in contact with the fixed rotary disc 6, the fixed rotary disc 6 rotates to push the blocking block 91 and the upper device thereof to rotate, the gear ring 92 can drive the sliding rack block 94 and the fixed guide rod 95 to move leftwards, and through the rebound action of the second extrusion spring 96 and the return spring 97, the sliding rack block 94 clamps the gear ring 92 and the upper device thereof, so that the blocking block 91 clamps the fixed rotary disc 6, the fixed rotary disc 6 and the rotary shaft 5 are stopped, and the braking purpose is further achieved.
After the driver releases the brake pedal, the brake device does not apply pressure to the hydraulic push rod 72 any more, the stretched tension spring 74 resets to drive the extrusion rod 73 to move and reset towards the direction close to the motor top plate 2, the extrusion rod 73 is separated from the sliding friction disc 75, the compressed extrusion spring I76 resets to drive the sliding friction disc 75 and the upper device to move and reset towards the direction close to the motor top plate 2, the stop block 91 is separated from the fixed turntable 6, and the compressed extrusion spring II 96 and the reset spring 97 reset to drive the sliding rack block 94 and the fixed guide rod 95 to move and reset towards the right. The sliding friction disc 75 drives the pushing slot rod 81 to move and reset towards the direction close to the motor top plate 2, the pushing slot rod 81 is separated from the swinging rod 83, the compressed torsion spring I84 resets to drive the swinging rod 83 to swing, the swinging rod 83 drives the sliding pushing frame 86 and the upper device thereof to move and reset towards the direction far away from the motor top plate 2, and finally the first-stage friction speed reducing ring 79 and the second-stage friction speed reducing ring 88 are separated from the fixed rotary disc 6.
Example 2
Based on embodiment 1, as shown in fig. 14, the brake caliper further includes a caliper stopping assembly 10, the caliper stopping assembly 10 is disposed at the rear side of the moving frame 93, the caliper stopping assembly 10 is used for clamping the sliding friction disc 75, the caliper stopping assembly 10 includes a fixing bolt 101, a movable caliper 102, a second torsion spring 103 and a brake pad 104, the fixing bolt 101 is fixedly connected to the rear side of the moving frame 93, the movable caliper 102 is rotatably connected to the fixing bolt 101, the second torsion spring 103 is connected between the movable caliper 102 and the fixing bolt 101, the brake pad 104 is disposed at the middle portion of the movable caliper 102, the sliding rack block 94 is used for pushing the movable caliper 102 and the brake pad 104 to swing downwards, the brake pad 104 is in contact with the sliding friction disc 75, and the brake pad 104 is used for applying pressure to the sliding friction disc 75.
When the sliding rack block 94 and the fixed guide rod 95 move leftward, the sliding rack block 94 pushes the movable caliper 102 and the brake pad 104 to swing downward, so that the brake pad 104 applies pressure to the sliding friction disc 75 to stop the sliding friction disc 75, and further the blocking block 91 blocks the fixed turntable 6, so that the fixed turntable 6 and the rotating shaft 5 stop.
Example 3
On the basis of embodiment 2, as shown in fig. 1, fig. 2 and fig. 15, the cooling device further includes an air-cooled heat dissipation assembly 11, the air-cooled heat dissipation assembly 11 is disposed on the front side of the top surface of the bottom plate 1, the air-cooled heat dissipation assembly 11 is used for dissipating heat of parts, the air-cooled heat dissipation assembly 11 includes a heat dissipation frame 111 and an air-cooled port 112, the heat dissipation frame 111 is fixedly mounted on the front side of the top surface of the bottom plate 1, the heat dissipation frame 111 is fixedly connected with the mounting plate 3, the air-cooled port 112 is disposed on the heat dissipation frame 111, and the air-cooled port 112 is used for discharging cold air.
In the brake stopping process, high temperature can be generated among all parts, the automobile control system controls the heat dissipation frame 111 to be started, cold air is blown out from the air cooling port 112, the cold air can take away heat on all parts to achieve the purpose of heat dissipation, the phenomenon that the parts are seriously heated and seriously attenuated is avoided, after the automobile is stopped, the heat dissipation frame 111 continues to operate to continuously dissipate heat of the parts, the parts are prevented from being seriously damaged due to heating, the brake failure during the next emergency brake is prevented, and after a period of time, the automobile control system controls the heat dissipation frame 111 to be closed.
Example 4
On the basis of embodiment 3, as shown in fig. 1, the servo motor control system further includes a motor controller 12, the motor controller 12 is fixedly installed in the middle of the base plate 1, and the motor controller 12 is used for controlling the servo motor 4 to stop operating.
During the brake stopping process, the motor controller 12 can control the servo motor 4 to stop operating, can assist the vehicle brake, and can store part of the brake energy into the power battery.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. New energy automobile is with pressing down formula emergency braking device, including bottom plate (1), its characterized in that still including: the motor top plate (2) is fixedly arranged on the rear side of the top surface of the bottom plate (1); the mounting plate (3) is fixedly mounted in the middle of the bottom plate (1), the servo motor (4) is fixedly mounted on the rear side of the top surface of the bottom plate (1), the servo motor (4) is located below the motor top plate (2), and the servo motor (4) is used for driving a rear wheel; the servo motor is characterized by comprising a rotating shaft (5), wherein the rotating shaft (5) is arranged in the servo motor (4), and a fixed turntable (6) is fixedly connected to the rotating shaft (5); the mounting plate (3) is connected with the primary side friction deceleration component (7) in a sliding mode, and the primary side friction deceleration component (7) is used for playing a role in deceleration and braking by utilizing the friction between the primary side friction deceleration component and the rotating shaft (5); the front top surface of the bottom plate (1) is provided with a secondary side surface friction deceleration component (8), and the secondary side surface friction deceleration component (8) is used for decelerating and braking the rotating shaft (5) by using friction; the middle part of the bottom plate (1) is connected with a rack brake assembly (9) in a sliding manner, and the rack brake assembly (9) is used for braking the automobile wheels;
the side surface of the fixed rotary table (6) is an uneven plane, the roughness of the fixed rotary table (6) increases the contact friction force between the fixed rotary table and a brake part to the maximum extent, and the fixed rotary table (6) is used for generating friction action through external pressure to decelerate a vehicle;
the primary side friction speed reducing assembly (7) comprises a hydraulic cylinder (71), a hydraulic push rod (72), an extrusion rod (73), a tension spring (74), a sliding friction disc (75), an extrusion spring I (76), a sliding rod I (77), a compression spring I (78) and a primary friction speed reducing ring (79), the hydraulic cylinder (71) is symmetrically and fixedly installed on the motor top plate (2), the hydraulic push rod (72) is connected above the hydraulic cylinder (71) in a sliding manner, the extrusion rod (73) is connected below the hydraulic cylinder (71) in a sliding manner, the tension spring (74) is connected between the extrusion rod (73) and the hydraulic cylinder (71), the sliding friction disc (75) is connected on the mounting plate (3) in a sliding manner, the rotating shaft (5) is connected with the sliding friction disc (75) in a rotating manner, the extrusion spring I (76) is sleeved on the sliding friction disc (75), one end of the extrusion spring I (76) is contacted with the mounting plate (3), four first sliding rods (77) are connected to the sliding friction disc (75) in a circumferentially distributed mode in a sliding mode, a first-stage friction speed reducing ring (79) is fixedly connected to the four first sliding rods (77) together, two pairs of first compression springs (78) are connected between the first-stage friction speed reducing ring (79) and the sliding friction disc (75), and the first sliding rods (77) penetrate through the first compression springs (78).
2. The downward-pressing emergency braking device for the new energy automobile according to claim 1, wherein the secondary side friction deceleration component (8) comprises a pushing grooved rod (81), a fixing main frame (82), a swinging rod (83), a first torsion spring (84), a fixing bracket (85), a sliding pushing frame (86), a second sliding rod (87), a secondary friction deceleration ring (88) and a second compression spring (89), the mounting plate (3) is connected with the pushing grooved rod (81) in a sliding manner, the pushing grooved rod (81) is in contact with a sliding friction disc (75), the fixing main frame (82) is fixedly installed on the top surface of the front side of the base plate (1), the swinging rod (83) is connected to the fixing main frame (82) in a symmetrical and rotating manner, a pair of first torsion springs (84) is connected between the swinging rod (83) and the fixing main frame (82), and the fixing bracket (85) is fixedly connected to the front side of the fixing main frame (82), the sliding type push frame (86) is connected to the fixed support (85), the sliding type push frame (86) is in limit fit with the swing rod (83), four sliding rods II (87) are connected to the sliding type push frame (86) in a circumferential distribution mode in a sliding mode, a two-stage friction speed reducing ring (88) is welded to the four sliding rods II (87) together, two pairs of compression springs II (89) are connected between the two-stage friction speed reducing ring (88) and the sliding type push frame (86), and the sliding rods II (87) penetrate through the compression springs II (89).
3. The push-down emergency brake device for the new energy automobile according to claim 2, wherein the rack brake assembly (9) comprises a stop block (91), a gear ring (92), a moving frame (93), a sliding rack block (94), a fixed guide rod (95), a second extrusion spring (96) and a return spring (97), the stop block (91) is connected to the sliding friction disk (75) in a circumferentially distributed manner, the gear ring (92) is fixedly connected to the sliding friction disk (75), the moving frame (93) is slidably connected to the middle of the base plate (1), the moving frame (93) is in contact with the pushing slot rod (81), the sliding rack block (94) is slidably connected to the upper portion of the moving frame (93), the sliding rack block (94) is engaged with the gear ring (92), the fixed guide rod (95) is fixedly connected to the sliding rack block (94), and the moving frame (93) is slidably connected to the fixed guide rod (95), a second extrusion spring (96) is connected between the fixed guide rod (95) and the movable frame (93), and a return spring (97) is connected between the sliding rack block (94) and the movable frame (93).
4. The push-down emergency braking device for the new energy automobile is characterized by further comprising a caliper stopping assembly (10), the caliper stopping assembly (10) is arranged on the rear side of the moving frame (93), the caliper stopping assembly (10) comprises a fixing bolt (101), a movable caliper (102), a second torsion spring (103) and a brake pad (104), the fixing bolt (101) is fixedly connected to the rear side of the moving frame (93), the movable caliper (102) is rotatably connected to the fixing bolt (101), the second torsion spring (103) is connected between the movable caliper (102) and the fixing bolt (101), the brake pad (104) is arranged in the middle of the movable caliper (102), and the brake pad (104) is in contact with the sliding friction disc (75).
5. The push-down emergency brake device for the new energy automobile is characterized in that the bottom surface of the brake pad (104) is an arc surface corresponding to the sliding friction disc (75), and the brake pad (104) is tightly attached to the sliding friction disc (75) during braking so as to fully play a role in braking.
6. The downward-pressing emergency braking device for the new energy automobile is characterized by further comprising an air-cooling heat dissipation assembly (11), wherein the air-cooling heat dissipation assembly (11) is arranged on the front side of the top face of the base plate (1), the air-cooling heat dissipation assembly (11) comprises a heat dissipation frame (111) and an air-cooling opening (112), the heat dissipation frame (111) is fixedly mounted on the front side of the top face of the base plate (1), the heat dissipation frame (111) is fixedly connected with the mounting plate (3), and the air-cooling opening (112) is formed in the heat dissipation frame (111).
7. The push-down emergency braking device for the new energy automobile is characterized by further comprising a motor controller (12), wherein the motor controller (12) is fixedly installed in the middle of the bottom plate (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111343317.1A CN113787993B (en) | 2021-11-13 | 2021-11-13 | Pressing type emergency braking device and method for new energy automobile |
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| CN202111343317.1A CN113787993B (en) | 2021-11-13 | 2021-11-13 | Pressing type emergency braking device and method for new energy automobile |
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| CN113787993A CN113787993A (en) | 2021-12-14 |
| CN113787993B true CN113787993B (en) | 2022-02-25 |
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| CN114834411B (en) * | 2022-07-04 | 2022-09-23 | 杭州重河新能源科技有限公司 | Multistage brake booster unit of new energy automobile |
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| DE102013012823A1 (en) * | 2013-08-01 | 2015-02-05 | Lucas Automotive Gmbh | Disc brake for a motor vehicle with a sealing arrangement designed for an electronic parking brake |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113638991B (en) * | 2021-07-29 | 2023-02-17 | 山东宇众汽车科技有限公司 | New forms of energy electric axle |
| CN113602931A (en) * | 2021-08-27 | 2021-11-05 | 广州梵智产品设计有限公司 | Emergency buffer device capable of preventing car from rushing to top and elevator with emergency buffer device |
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2021
- 2021-11-13 CN CN202111343317.1A patent/CN113787993B/en active Active
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| CN202294751U (en) * | 2011-10-12 | 2012-07-04 | 慕新慧 | Vehicular graded pneumatic braking device |
| DE102013012823A1 (en) * | 2013-08-01 | 2015-02-05 | Lucas Automotive Gmbh | Disc brake for a motor vehicle with a sealing arrangement designed for an electronic parking brake |
| CN205396055U (en) * | 2016-03-07 | 2016-07-27 | 吉林大学 | Swift current car device is prevented to heavy bicycle |
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