CN116533948B - Energy-saving power generation direct-drive electric vehicle - Google Patents
Energy-saving power generation direct-drive electric vehicle Download PDFInfo
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- CN116533948B CN116533948B CN202310597819.XA CN202310597819A CN116533948B CN 116533948 B CN116533948 B CN 116533948B CN 202310597819 A CN202310597819 A CN 202310597819A CN 116533948 B CN116533948 B CN 116533948B
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- hydraulic
- hydraulic oil
- drum brake
- wheel
- axle
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- 238000010248 power generation Methods 0.000 title claims abstract description 13
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 66
- 229920006231 aramid fiber Polymers 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 claims 1
- 206010039203 Road traffic accident Diseases 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 meanwhile Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Classifications
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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
- B60T1/10—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels by utilising wheel movement for accumulating energy, e.g. driving air compressors
-
- 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
- B60T1/067—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 drum
-
- 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
- B60T13/12—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 the fluid being liquid
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to the technical field of electric vehicles, in particular to an energy-saving power generation direct-drive electric vehicle and a power generation device, comprising: when the first hydraulic oil pipe breaks, the hydraulic oil in the first hydraulic oil pipe gradually loses pressure when the hydraulic oil in the first hydraulic oil pipe is retracted, and the pressure applied to the pressure valve when the hydraulic oil is retracted gradually decreases until the pressure of the hydraulic oil is too small to cause that the pressure valve cannot be opened, so that the hydraulic oil in the hydraulic groove cannot be retracted into the second hydraulic oil pipe, the limit block cannot be retracted from the limit groove, and the vehicle is in a braking state and cannot run; if the driver does not find the problem of cracking of the first hydraulic oil pipe in time, hydraulic oil leaks, so that the vehicle is in braking failure, and the traffic accident is caused before the problem; the vehicle can brake the vehicle before the brake fails, so that the problem of traffic accidents is avoided, and the safety of drivers and other vehicles on the road is improved.
Description
Technical Field
The invention relates to the technical field of electric vehicles, in particular to an energy-saving power generation direct-drive electric vehicle.
Background
For various types of electric automobiles, one of three key technologies is an electric drive system; but of all electric drive systems, the wheel motor drive system is one of the most promising modes of motion;
the direct-drive electric vehicle is an emerging drive electric vehicle, and has two basic forms, namely a direct-drive electric wheel and an electric wheel with a wheel-side reducer;
the direct-drive electric vehicle drives the vehicle mainly through electric power, and the electric power is used as clean energy, so that environmental carbon pollution can be reduced, but after the electric power is placed on the electric vehicle, the electric vehicle needs longer time when being charged, so that reasonable planning is needed for reasonable application of the electric power inside the electric vehicle;
for example, in real life, when an electric vehicle is braked, the inertia generated by the electric vehicle is utilized to generate electricity, so that the electric vehicle can be used for improving the endurance of the electric vehicle and distributing the electric vehicle to other electric components in the vehicle;
however, the following problems still occur when the electric vehicle is in use;
in the running process of the electric vehicle, a driver needs to constantly tread a brake pedal to brake the vehicle, and when the vehicle brakes, brake oil is needed to brake the vehicle, but if the quality of the brake oil is poor, parts such as nuts for fixing an oil pipe are broken, and sealing materials of the oil pipe are aged and invalid, the driver cannot easily find that the brake oil pipe is broken, the braking effect is poor until the braking is invalid, and the problem that the brake failure occurs in the running process of the electric vehicle for many times on the market, and then accidents of the number of vehicle damages and deaths occur;
and in the existing power generation system of the electric vehicle, for example, the vehicle generates power by utilizing the inertia of the vehicle body in the braking process, or generates power by utilizing the vehicle body when the vehicle descends, which belongs to the special environment, and the electric vehicle has limited driving distance under the inertia of the vehicle body, so the power generation amount of the electric vehicle is limited.
In order to solve one of the technical problems presented herein, the invention provides an energy-saving power generation direct-drive electric vehicle.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides an energy-saving power generation direct-drive electric vehicle, which comprises an axle, an axle shaft, a bolt disc, a rim, a hub and a controller; the wheel shafts are arranged at two ends of the axle and rotate through motors arranged in the direct-drive electric vehicle; the bolt disc is fixedly connected to one end of the wheel shaft, which is far away from the axle; the wheel rim is in a basin-shaped arrangement, the center of the wheel rim is fixedly connected to the wheel shaft, the wheel rim is fixedly connected to one end of the wheel shaft, which is close to the bolt disc, and an opening of the wheel rim faces the axle direction; the wheel hub is fixedly connected to the bolt disc through a bolt, and a tire is sleeved on the outer ring of the wheel hub; the controller is used for controlling the operation of the internal components of the direct-drive electric vehicle and also comprises,
the support shafts are fixedly connected to the two ends of the axle, the support shafts are positioned below the axle, the number of the support shafts at each end of the axle is two, one end of each support shaft, which is far away from the axle, extends into the rim, and the support shafts are not in contact with the rim;
the drum brake disc is fixedly connected to one end of the support shaft, which is positioned in the rim, the middle part of the drum brake disc is hollow, the middle part of the drum brake disc is not contacted with the wheel shaft, and the side surface of the drum brake disc is not contacted with the rim;
the lower sides of the drum brake blocks are rotationally connected to the supporting shafts, the drum brake blocks are symmetrically distributed on the adjacent supporting shafts, the two drum brake blocks are not contacted with the wheel shaft, and a reset spring is fixedly connected between the two drum brake blocks; the side wall of the drum brake block, which is close to the inner wall of the rim, is provided with a brake block;
the hydraulic oil cylinder is fixedly connected to the upper side of the drum brake disc, hydraulic rods arranged at two ends of the hydraulic oil cylinder are respectively contacted with the upper sides of the two drum brake blocks, a first hydraulic pipe is arranged on the hydraulic oil cylinder, and the first hydraulic pipe is connected with a brake pedal in the direct-drive electric vehicle; a second hydraulic pipe is arranged at one end, close to the hydraulic oil cylinder, of the first hydraulic pipe;
the hydraulic groove is formed in the inner wall of the hydraulic oil cylinder, two ends of the hydraulic groove are connected with limiting blocks in a sealing and sliding mode, the middle of the hydraulic groove is communicated with the second hydraulic pipe, and a pressure valve is arranged at the communication position of the hydraulic groove and the second hydraulic pipe;
the side of the end, close to each other, of the two hydraulic rods inside the hydraulic oil cylinder is provided with a limiting groove, and when the two hydraulic rods are pushed, the limiting block enters the limiting groove.
As a preferable scheme of the invention, the brake pad is made of ceramic material containing aramid fiber.
The beneficial effects of the invention are as follows:
1. according to the energy-saving power generation direct-drive electric vehicle, when the first hydraulic pipe breaks, hydraulic oil in the first hydraulic pipe is gradually out of pressure when the hydraulic oil is retracted, the pressure applied to the pressure valve when the negative pressure generated by the hydraulic oil presses the pressure valve is gradually reduced after the brake pedal is stepped on for a plurality of times, and the pressure applied to the pressure valve is not opened until the hydraulic oil pressure is too small, so that the hydraulic oil in the hydraulic groove cannot be retracted into the second hydraulic pipe, the limit block cannot be retracted from the limit groove, the hydraulic rod cannot be retracted in the hydraulic oil cylinder, and the vehicle is in a braking state and cannot run; therefore, when the vehicle is running, the driver does not find the problem that the first hydraulic pipe breaks in time, so that hydraulic oil leaks after the vehicle steps on the brake pedal for a plurality of times, and the vehicle is in brake failure; the pressure valve can brake the vehicle before the brake fails, so that traffic accidents are avoided, and the safety of drivers and other vehicle drivers on the road is improved to a certain extent.
Drawings
The invention will be further described with reference to the drawings and embodiments.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a structural view of the interior of the hub of the present invention;
FIG. 3 is a front elevational view of the hub of the present invention;
FIG. 4 is a cross-sectional view of a hydraulic ram in the present invention;
fig. 5 is a longitudinal cross-sectional view of a hydraulic ram according to the present invention.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Embodiment 1,
As shown in fig. 1 to 5, an energy-saving power generation direct-drive electric vehicle comprises an axle 1, an axle 11, a bolt disc 12, a rim 13, a hub 14 and a controller; the wheel shafts 11 are arranged at two ends of the axle 1, and the wheel shafts 11 rotate through a motor arranged in the direct-drive electric vehicle; the bolt disc 12 is fixedly connected to one end of the wheel shaft 11, which is far away from the axle 1; the wheel rim 13 is in a basin shape, the center position of the wheel rim 13 is fixedly connected to the wheel shaft 11, the wheel rim 13 is fixedly connected to one end of the wheel shaft 11, which is close to the bolt disc 12, and an opening of the wheel rim 13 faces the direction of the axle 1; the hub 14 is fixedly connected to the bolt disc 12 through bolts, and a tire is sleeved on the outer ring of the hub 14; the controller is used for controlling the operation of the internal components of the direct-drive electric vehicle and also comprises,
the support shafts 15 are fixedly connected to the two ends of the axle 1, the support shafts 15 are positioned below the wheel shafts 11, the number of the support shafts 15 at each end of the axle 1 is two, one end, away from the axle 1, of each support shaft 15 extends into the wheel rim 13, and the support shafts 15 are not in contact with the wheel rim 13;
the drum brake disc 151 is fixedly connected to one end of the support shaft 15, which is positioned in the rim 13, the middle part of the drum brake disc 151 is hollow, the middle part of the drum brake disc 151 is not contacted with the wheel shaft 11, and the side surface of the drum brake disc 151 is not contacted with the rim 13;
the drum brake blocks 152 are rotationally connected to the supporting shafts 15 at the lower sides of the drum brake blocks 152, the drum brake blocks 152 are symmetrically distributed on the adjacent supporting shafts 15, the two drum brake blocks 152 are not contacted with the wheel shafts 11, and a reset spring is fixedly connected between the two drum brake blocks 152; the side wall of the drum brake block 152, which is close to the inner wall of the rim 13, is provided with a brake block 153;
the hydraulic cylinder 16, the hydraulic cylinder 16 is fixedly connected to the upper side of the drum brake disc 151, the hydraulic rods 161 arranged at two ends of the hydraulic cylinder 16 are respectively contacted with the upper sides of the two drum brake blocks 152, the hydraulic cylinder 16 is provided with a first hydraulic pipe 162, and the first hydraulic pipe 162 is connected with a brake pedal in the direct-drive electric vehicle; a second hydraulic pipe 163 is arranged at one end of the first hydraulic pipe 162 close to the hydraulic cylinder 16;
the hydraulic groove 164 is formed in the inner wall of the hydraulic cylinder 16, two ends of the hydraulic groove 164 are connected with limiting blocks 165 in a sealing and sliding manner, the middle of the hydraulic groove 164 is communicated with the second hydraulic pipe 163, and a pressure valve 166 is arranged at the communication position of the hydraulic groove 164 and the second hydraulic pipe 163;
the side surfaces of the two hydraulic rods 161 at the end, which is close to each other, inside the hydraulic cylinder 16 are provided with limit grooves 167, and when the two hydraulic rods 161 are pushed, the limit blocks 165 enter the limit grooves 167;
the brake pad 153 is made of ceramic material containing aramid fiber;
when the direct-drive electric vehicle runs, a driver needs to constantly tread a brake pedal in the vehicle, when the driver treads the brake pedal, the brake pedal pressurizes a hydraulic cylinder connected with the brake pedal, pressurized hydraulic oil enters a first hydraulic pipe 162, the hydraulic oil enters a hydraulic cylinder 16 through the first hydraulic pipe 162, after the hydraulic oil enters the hydraulic cylinder 16, the internal pressure of the hydraulic cylinder 16 is increased, after the internal pressure of the hydraulic cylinder 16 is increased, a hydraulic rod 161 in the hydraulic cylinder 16 pushes two ends in the hydraulic cylinder 16, when the hydraulic rod 161 pushes the upper sides of drum brake blocks 152 contacted with the hydraulic rod 161, and because the hydraulic cylinder 16 is fixedly connected to the drum brake disc 151, the drum brake disc 151 is fixedly connected with an axle 1 through a supporting shaft 15, therefore, when the hydraulic rod 161 moves in the hydraulic cylinder 16, the hydraulic cylinder 16 is fixed on the drum brake disc 151, so that the stability of the hydraulic cylinder 16 is ensured, and because the lower end of the drum brake block 152 is rotationally connected to the supporting shaft 15, when the drum brake block 152 is pushed by the hydraulic rod 161, the drum brake block 152 fixed on each supporting shaft 15 rotates around the supporting shaft 15, the side surface of the drum brake block 152 drives the brake block 153 to move towards the inner wall of the wheel rim 13 until the brake block 153 contacts with the inner wall of the wheel rim 13, the brake block 153 rubs with the inner wall of the wheel rim 13 until the wheel rim 13 stops rotating, and because the wheel rim 13 is fixedly connected to the wheel axle 11, the wheel hub 14 is fixedly connected to the bolt disc 12 through bolts, when the wheel axle 11 rotates, the wheel rim 13, the wheel hub 14 and the tyre on the wheel hub 14 synchronously rotate, when the brake pad 153 rubs against the inner wall of the rim 13 until the rim 13 stops rotating, the hub 14 and the tires on the hub 14 stop rotating, so that the direct-drive electric vehicle is gradually braked;
before hydraulic oil enters the hydraulic cylinder 16, after the hydraulic oil enters the first hydraulic pipe 162, as the end, close to the hydraulic cylinder 16, of the first hydraulic pipe 162 is communicated with the second hydraulic pipe 163, before the hydraulic oil enters the hydraulic cylinder 16, the hydraulic oil enters the second hydraulic pipe 163, then the hydraulic oil enters the hydraulic groove 164 through the second hydraulic pipe 163, the pressure of the hydraulic oil in the second hydraulic pipe 163 is gradually increased along with the stepping of a brake pedal by a driver, meanwhile, after the hydraulic oil enters the hydraulic groove 164 through the second hydraulic pipe 163, the pressure of the hydraulic oil in the hydraulic groove 164 is increased, after the pressure in the hydraulic groove 164 is increased, the hydraulic oil pushes and pushes the limiting block 165 in the hydraulic groove 164, the limiting block 165 is pushed to gradually squeeze the side surface of the hydraulic rod 161 until the limiting block 165 moves, the limiting groove 167 on the side surface of the limiting block 165 coincides with the position of the limiting block 165, at the moment, the limiting block 165 is pushed into the inside the limiting groove 167, and at the moment, the opening of the hydraulic groove 164 is closed by the pressure valve 166; when the driver does not trample the brake pedal any more, the brake pedal rebounds, when the brake pedal rebounds, hydraulic oil in the first hydraulic pipe 162 and the second hydraulic pipe 163 can reflow, when hydraulic oil in the hydraulic oil cylinder 16 reflows, the hydraulic rod 161 in the hydraulic oil cylinder 16 can be retracted by negative pressure generated by the hydraulic oil, meanwhile, hydraulic oil in the hydraulic tank 164 can be retracted, and the limiting block 165 is pulled to retract from the inside of the limiting groove 167 by the negative pressure generated when the hydraulic oil in the hydraulic tank 164 is retracted, and the limiting block 165 does not limit the limiting groove 167 any more; and when the hydraulic oil is retracted inside the second hydraulic pipe 163, the negative pressure generated will press the pressure valve 166 at the opening of the hydraulic tank 164, and the pressure valve 166 will be opened, so that the hydraulic oil inside the hydraulic tank 164 enters the second hydraulic pipe 163; at this time, the return spring between the two drum brake blocks 152 contracts, so that the drum brake blocks 152 and the brake blocks 153 do not brake the inner wall of the rim 13 any more, and further the vehicle is driven continuously;
if the first hydraulic pipe 162 breaks during the running process of the vehicle, when a driver steps on the brake pedal, the pressure of hydraulic oil in the first hydraulic pipe 162 and the second hydraulic pipe 163 increases, so that the hydraulic rod 161 pushes the drum brake block 152 to the two sides, the drum brake block 152 pushes the brake pad 153 until the brake pad 153 brakes the wheel rim 13, and the limit block 165 extends into the limit groove 167 from the inside of the hydraulic groove 164 while the hydraulic rod 161 pushes, so that the limit block 165 limits the hydraulic rod 161; when the driver does not step on the brake pedal any more, the hydraulic oil can retract inside the first hydraulic pipe 162 and the second hydraulic pipe 163, at this time, when the hydraulic oil is retracted inside the second hydraulic pipe 163, the first hydraulic pipe 162 is broken, so that the hydraulic oil can gradually lose pressure when the hydraulic oil inside the first hydraulic pipe 162 is retracted, when the pressure of the hydraulic oil for pressing the pressure valve 166 by the negative pressure generated by the hydraulic oil is stepped on the brake pedal for a plurality of times, the pressure applied to the pressure valve 166 is gradually reduced when the hydraulic oil is retracted until the pressure of the hydraulic oil is too small to open the pressure valve 166, so that the hydraulic oil inside the hydraulic groove 164 cannot retract inside the second hydraulic pipe 163, the limit block 165 cannot retract from the inside the limit groove 167, the hydraulic rod 161 cannot retract inside the hydraulic oil cylinder 16, and the vehicle cannot travel, and the vehicle is in a braking state; therefore, when the vehicle is running, the driver does not find the problem of cracking the first hydraulic pipe 162 in time, so that the hydraulic oil leaks after the vehicle steps on the brake pedal for several times, the vehicle is in brake failure, and the traffic accident is caused before the problem occurs; the vehicle can brake the vehicle before the brake fails, so that the problem of traffic accidents is avoided, and the safety of drivers and other vehicle drivers on the road is improved to a certain extent;
and the brake pad 153 is made of ceramic materials containing aramid fibers, and the inside of the brake pad 153 is free of metal, so that the brake pad has good heat stability, low heat conductivity and good wear resistance, can meet the high performance requirements of various high-performance brake materials, further realizes the high-speed, safe and high wear-resistant performance improvement effects of the brake pad 153, and further improves the braking efficiency of the brake pad 153.
The foregoing has shown and described the basic principles, principal features and advantages of the invention; it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. An energy-saving power generation direct-drive electric vehicle comprises an axle (1), an axle (11), a bolt disc (12), a wheel rim (13), a wheel hub (14) and a controller; the wheel shafts (11) are arranged at two ends of the axle (1), and the wheel shafts (11) rotate through motors arranged in the direct-drive electric vehicle; the bolt disc (12) is fixedly connected to one end of the wheel shaft (11) far away from the axle (1); the wheel rim (13) is arranged in a basin shape, the center of the wheel rim (13) is fixedly connected to the wheel shaft (11), the wheel rim (13) is fixedly connected to one end, close to the bolt disc (12), of the wheel shaft (11), and an opening of the wheel rim (13) faces the direction of the axle (1); the hub (14) is fixedly connected to the bolt disc (12) through a bolt, and a tire is sleeved on the outer ring of the hub (14); the controller is used for controlling the operation of components in the direct-drive electric vehicle and is characterized in that; also included is a method of manufacturing a semiconductor device,
the support shafts (15) are fixedly connected to two ends of the axle (1), the support shafts (15) are located below the wheel shafts (11), the number of the support shafts (15) arranged at each end of the axle (1) is two, one end, far away from the axle (1), of each support shaft (15) extends into the wheel rim (13), and the support shafts (15) are not in contact with the wheel rim (13);
the drum brake disc (151), the drum brake disc (151) is fixedly connected to one end of the supporting shaft (15) which is positioned in the rim (13), the middle part of the drum brake disc (151) is hollow, the middle part of the drum brake disc (151) is not contacted with the wheel shaft (11), and the side surface of the drum brake disc (151) is not contacted with the rim (13);
the lower sides of the drum brake blocks (152) are rotationally connected to the supporting shafts (15), the drum brake blocks (152) are symmetrically distributed on the adjacent supporting shafts (15), the two drum brake blocks (152) are not contacted with the wheel shaft (11), and a reset spring is fixedly connected between the two drum brake blocks (152); the side wall of the drum brake block (152) close to the inner wall of the rim (13) is provided with a brake block (153);
the hydraulic cylinder (16), the hydraulic cylinder (16) is fixedly connected to the upper side of the drum brake disc (151), the hydraulic rods (161) arranged at two ends of the hydraulic cylinder (16) are respectively contacted with the upper sides of the two drum brake blocks (152), a first hydraulic pipe (162) is arranged on the hydraulic cylinder (16), and the first hydraulic pipe (162) is connected with a brake pedal in the direct-drive electric vehicle; a second hydraulic pipe (163) is arranged at one end, close to the hydraulic oil cylinder (16), of the first hydraulic pipe (162);
the hydraulic groove (164), the hydraulic groove (164) is set up in the inner wall of the hydraulic cylinder (16), the both ends seal sliding connection of the hydraulic groove (164) has stopper (165), the middle part of the hydraulic groove (164) communicates with the second hydraulic pipe (163), the department that the hydraulic groove (164) communicates with the second hydraulic pipe (163) is provided with the pressure valve (166);
the side surfaces of one ends, close to each other, of the two hydraulic rods (161) in the hydraulic oil cylinder (16) are provided with limit grooves (167), and when the two hydraulic rods (161) are pushed, the limit blocks (165) enter the limit grooves (167);
when the first hydraulic pipe (162) breaks, so when the hydraulic oil in the first hydraulic pipe (162) is retracted, the hydraulic oil gradually loses pressure, when the pressure of the negative pressure generated by the hydraulic oil for pressing the pressure valve (166) is stepped on for a plurality of times, the pressure applied to the pressure valve (166) is gradually reduced when the hydraulic oil is retracted until the pressure of the hydraulic oil is too small, so that the pressure valve (166) cannot be opened, the hydraulic oil in the hydraulic groove (164) cannot be retracted into the second hydraulic pipe (163), the limit block (165) cannot be retracted from the limit groove (167), the hydraulic rod (161) cannot be retracted in the hydraulic oil cylinder (16), and the vehicle is in a braking state and cannot travel.
2. The energy-saving power generation direct-drive electric vehicle according to claim 1, characterized in that: the brake pad (153) is made of ceramic material containing aramid fiber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310597819.XA CN116533948B (en) | 2023-05-25 | 2023-05-25 | Energy-saving power generation direct-drive electric vehicle |
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| CN202310597819.XA CN116533948B (en) | 2023-05-25 | 2023-05-25 | Energy-saving power generation direct-drive electric vehicle |
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| CN116533948B true CN116533948B (en) | 2023-10-10 |
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| KR19990015795A (en) * | 1997-08-09 | 1999-03-05 | 홍종만 | Braking system |
| KR20010064481A (en) * | 1999-12-29 | 2001-07-09 | 이계안 | A brake apparatus of cars |
| CN110836228A (en) * | 2018-08-17 | 2020-02-25 | 现代摩比斯株式会社 | Drum brake device |
| CN109606339A (en) * | 2018-12-13 | 2019-04-12 | 北汽福田汽车股份有限公司 | Parking braking system and vehicle |
| CN216742533U (en) * | 2021-12-15 | 2022-06-14 | 广东富华重工制造有限公司 | Wheel end structure of axle and axle |
| CN114810865A (en) * | 2022-05-11 | 2022-07-29 | 空间液态金属科技发展(江苏)有限公司 | Drum brake system with heat conduction function |
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| CN116533948A (en) | 2023-08-04 |
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