It is produced in Beijing, Beijing Shenzhou Judian New Energy Technology Co., Ltd., mainly producing power lithium batteries, with one of the smallest bicycles, ultra-light weight and aluminum alloy body.
The price is 3,000 yuan, and the battery accounts for 1500 yuan. The battery is in the middle of the bicycle bar and inside the bar. You can run 15km on a single charge, which is about 10 ampere-hour capacity, 24 volts. The front wheel drive is adopted, and the motor is installed on the front fork. The plastic rim on the front wheel has internal teeth, which are consistent with the gears on the motor.
Shenzhen ZOOM Ruim, Shenzhen Xinlong Health Industry Development Co., Ltd. (No.Longfa Road, Longhua Sub-district Office, Baoan District, Shenzhen 1 1 Store: No.35, Wenxin 1st Road, Nanhai Avenue, Nanshan District, Shenzhen, 0755-83131. Moped and electric vehicle are different in design, structure, technology, engineering difficulty and safety, so they cannot be confused. Here are their differences.
Where can I find a Japanese Yamaha electric bicycle monopoly in Qingdao (telephone number)
At present, most of them are smuggled, and the price in 500 yuan is about 1000 RMB. Unlike domestic electric cars, this kind of car is power-assisted. If you don't ride a bike, its motor won't turn, and the riding torque is directly proportional to the driving current of the motor. When your riding torque exceeds a predetermined threshold, the driving current of the motor will linearly decrease. When your riding speed exceeds 16 km/h, the driving current of the motor will decrease linearly. When the bicycle speed exceeds 24 km/h, the driving current of the motor will drop to zero. If the wheel is stuck, you should apply a torque to the pedal of the bicycle for electric maneuver. If the car still doesn't move, cut off the input current of the motor, turn off the switch and restart it. The overall structure of this torque sensor is very reasonable, and it can transmit the torque of rotating transmission parts to a fixed angular displacement sensor, which shows that it has a solid industrial foundation in the material, design and processing of mechanical structure. Similarly, the internal transmission of bicycles was successfully copied in China 40 years ago, and was officially installed on commercial bicycles for sale. Due to the limitation of materials and processing conditions, this reverse engineering technology from physical mapping can never last long. Japanese law stipulates that bicycles should have headlights. Generally, generators driven by friction front wheels are used, and a few of them are drum generators with front wheels, rotating external permanent magnet tiles and fixed internal permanent magnets. A structure similar to the motor pulse tachometer generator in industrial control is adopted, and the generator coil is clamped by soft iron with thorns on both sides. Bicycle generators in the history of China were single-stage structures with external lines. Most mopeds in Japan are three-speed internal transmissions, usually with a central motor, a reduction gear and an overrunning clutch. Most smuggled Japanese moped batteries have reached the cycle life of charge and discharge, and there are original110v chargers. Generally speaking, Suzuki cars have the largest power.
Just entrust the sailor to buy it. Pay attention to taxes, stealing bicycles is a criminal offence in Japan! Japanese mopeds generally use brush motors, and the maximum power of motors on bicycles is stipulated by law. Hua 1.5 yuan to 15 yuan RMB can be converted into power-assisted and electric dual-purpose without changing the original controller. What kind of bike is the most labor-saving and fast?
700-type tire, 27-inch wheel diameter kilometer racing car is the most labor-saving, but the tire strength is low, and it is still the law that its spokes will prick two holes when embedding grooves, just two at a time, no more or less; You can't drive on a bumpy road or pick up people.
600 yuan/car, bearing material is poor. The normal price is 3,000 yuan/vehicle, at least for bearings in Taiwan Province Province.
Generally, it is recommended to use Japanese-made and smuggled second-hand bicycles, generally 300-500 yuan, ordinary tires with 24-inch, 26-inch, 1 and 3/8-inch sections, which are quite suitable for long-distance riding, such as salesmen who send plane tickets, photos and express delivery, and home appliance maintenance personnel. Imported ones with cross sections of 27 "/kloc-0" and 3/8 "are also very good. Suitable for tall people, generally similar to the front diagonal beam of women's cars. The disadvantage is that tires need to be purchased from rubber enterprises in Taiwan Province Province, such as Jianda Zheng Xin, Jianda and Huafeng, which are not available in many areas. The brand-new bicycles produced by China, a Japanese-funded enterprise, are not as good as the second-hand Japanese bicycles smuggled in. Pay attention to motorcycle locks and handcuff bicycles to fixed water pipes and traffic signs to prevent theft. Mountain bike tires are too wide, suitable for riding on rugged mountain roads, suitable for carrying heavy objects, and it is tiring to ride on urban roads.
Hello, everyone, hehe, I'm 19 male, a college student. I go to school locally, my home is in the city and my school is in the suburbs, which is about 12 km. Do you recommend buying an electric car or a bicycle?
Please help me choose. Small electric cars are quite fashionable. The basement of electric cars similar to motorcycles is not convenient for road racing, bicycles and mountain bikes are a little heavy.
Thank you! Problem supplement: I don't live in school, get up early for school, come back at noon, and have no classes in the afternoon.
Road racing is preferred. Usually, 700 tires are as thin as sausages. Because the tires are thin and narrow, it is very labor-saving to ride. The vehicle is light in weight and cannot carry loads and goods. The advantage is that it can be conveniently carried in the dormitory and placed beside the corridor or stairs, so as to implement active anti-theft. The disadvantage is that the cross section of the inner tube is small, it is not resistant to vibration, and it is afraid of potholes on the road. Therefore, it is a road racing car, which requires high road quality, and all of them are ordinary brakes. There is no imported disc brake, so the riding speed is fast, the braking ability is weak, the braking sliding distance is long and the safety is poor. Domestic road racing cars are low-priced in 400 yuan, and the normal price is 3000 yuan. This kind of bicycle is sold by fewer people and lost less. Because it is expensive, even if the host goes out to eat food stalls, he will stay within the sight of the other party, always pay attention and take it home at night. Those 30,000-50,000 yuan carbon fiber road racing cars are surprisingly light.
Mountain bike tires are too wide for off-road use and are suitable for bumpy road conditions. Riding is heavier than ordinary 26-inch bicycles with 1 and 3/8 knots.
Battery car? Electric bicycles usually use 12 ampere-hour batteries, and the new batteries will run 15 kilometers. The charge and discharge life of a battery is generally one year. Generally, it takes half a year to run continuously 10 km, which is not suitable for you. Ordinary lead-acid batteries are heavy. If lithium batteries are used, in this case, 10 km needs two sets. The battery is 3000 yuan. Ordinary electric vehicles also have a set of batteries, which need to be modified. There are few domestic enterprises that make power lithium batteries, only a few in Tianjin and Beijing. Ordinary lithium batteries, nickel-hydrogen batteries and nickel-cadmium batteries will explode when used in electric vehicles. Just like you, there is not enough charging time. Fast charging will shorten the charging and discharging cycle of any secondary battery, which is usually called service life. According to your specific situation, buy four sets of lithium batteries and put two chargers at home and school. The one in school is usually continuously charged, because the high-energy battery itself is a bomb. The charger of foreign original moped bicycle has a temperature sensor in the battery pack, and the foreign charger has no peak pulse ultra-high voltage output, so it is unattended when charging. Household chargers charge power lithium batteries, power nickel-hydrogen batteries and power nickel-cadmium batteries. You should not charge them in the dormitory. It is appropriate and safe to pay the person on duty at the door. If the battery is stolen, don't expect to claim compensation.
Principle of Mechanical Work: Man and Bicycle
Compared with people walking, bicycles are obviously labor-saving and seem to save distance. What happened? Tell me what you know, be more specific!
There were public conclusions decades ago; When people walk, they should raise their center of gravity by 2 cm every step and move forward under the action of tendons and gravity. Cyclists do the same work in the same direction, and they can also slide.
How to choose a bicycle?
I am a girl, I want to buy a bike to work, which is environmentally friendly and healthy, hehe ~ ~ Good idea!
How to choose a bicycle and what should I pay attention to?
Or do you have any good styles to recommend?
Please give some advice!
Supplementary question: brand? What brand is good?
Several decades ago, China imported bicycles from foreign brands such as Three Guns. Women's bicycles are characterized by high handlebars and distinctive body, which shapes the image of a lady. Please look at the old photos.
At present, Japanese bicycles are generally bought, which can be entrusted to seafarers, and high-end bicycle shops can also purchase imports. There are also smuggled ones. How to remove the black oil from the bicycle chain on the school uniform?
Remember, the chain of advanced bicycles abroad uses lubricating paste similar to floor wax and car polishing wax. At first glance, there is no color on the chain. Ordinary floor wax and car polishing wax can be used instead. Clean the chain with diesel oil and kerosene before use, not gasoline! ! ! Including washing gasoline, it's too dangerous.
You use an external variable-speed bicycle, right? I modified several ordinary external variable-speed bicycles and added flexible chain sleeves to show them to a Japanese academician and doctoral tutor. The vast majority of external variable-speed bicycles have no transmission chain cover, and a few plastic external variable-speed bicycles produced in Taiwan Province Province also have no transmission chain cover. At present, half of the smuggled Japanese bicycles are internally variable-speed, and the steel of bicycles is good, light and durable. However, a good horse with a good saddle needs to choose a good lock;
On airless bicycle tires
Don't waste your mind on things that countless people have done research and topics that countless large enterprises have spent huge sums of money on.
Only a few small enterprises are producing.
At that time, Jiang Qing was concerned about the working effect of foreign military vehicles in the case of flat tires. At that time, she liked to talk about coups.
The essence of vacuum tire is tubeless tire, which must be inflated! ! ! The metal tire is required to have high accuracy and good rigidity, and can be matched with the outer tire without air leakage. In order to facilitate the repair of punctured tires, it is necessary to inject high-viscosity automatic tire repair liquid with fibers into the tires. The imported tire repair liquid should be at least 100 yuan, and the complete set of imported bicycle vacuum tires, including wheels, spokes, baskets, shafts and bearings, should be more than 3,000 yuan.
Solid tires will definitely burn out the tire core when driving at high speed! ! ! !
Polyurethane integrated tire, that is, the inner tube and the outer tire are integrated, will fall off from the hub after a long walk, and can only be used for strollers and disabled cars.
The outer tire is a traditional rubber tire, and the inner tire is polyurethane. Before long, the inner tube became soft and it was heavy to walk.
Hollow integrated rubber tire is OK, with few manufacturers and narrow sales area.
Where can I find a dog wheelchair in Quanzhou? My dog can't walk on its hind legs. I read it online, and it is sold outside the province. I wonder if Quanzhou has it?
Human tricycles in Japan is very suitable. It is smaller than a domestic tricycle and can carry two pet dogs. Japan is used by housewives to buy food and take their pets out. Generally wider than the shoulders of adults. There is also pure manpower, electric power-assisted, pay attention to power-assisted, if you don't ride, the motor won't turn, which is very safe, which is the standard requirement of Japan and Europe.
Pure manpower, good is a double flywheel.
I have met many smugglers, and the price ranges from the shabby 600 yuan RMB to the relatively new RMB 3,000, and even to the help of RMB 5,000.
Because the space occupied by vehicles is several times that of ordinary bicycles, most people don't travel.
Please contact Shanghai Xunlei Vehicle Company directly. They produce and export to Japan, and also sell domestically.
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I am an office worker and climb stairs.
I am an office worker, but there is no elevator in the company, only the stairs go from the 9th floor to the 10 floor, and people say that climbing the stairs is very harmful to your knees! What should we do?
Who has the secret of climbing stairs without hurting your knees?
Please tell me if there is!
Don't make fun of me and ask me to resign or something.
I can't afford to play!
Thank you, kind people.
Thank you all
In a few years, I may be a robot climbing stairs for my own use, without any design obstacles, only the limitation of processing cost; The standard structure is cast aluminum structure, and the CNC center is hollowed out, so the cost can't be borne. Only small pieces of material can be cut by hand and connected by domestic gas shielded welding machine, and the gear pair can only be prepared.
When it comes to aluminum alloys, it is necessary to search.
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Why should the computer case use aluminum alloy?
Speaking of wheelchairs, it is necessary to search.
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What exactly is SEGWAY and what are its details?
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1 new American wheelchair can climb stairs
The last link is in Baidu Post Bar > Electric Staircar.
We can know that the research cost of the above two advanced means of transportation from the United States exceeds 1 billion dollars, which is not a profitable and valuable topic in business.
If someone personally makes a practical electric stair climbing car for you, even if it doesn't have the ability of autonomous movement (for example, if it is parked upstairs, you ask it to come downstairs to pick you up), even if it doesn't have a gyro system (it doesn't have a complete space attitude stabilization system, but it won't roll over during manned), its value will exceed that of a high-end Mercedes-Benz, BMW and Porsche car. It is not excluded to make a simple stair climbing car with materials and external processing of more than 5000 yuan. You can go to Baidu Post Bar > Electric Stair Climbing Car. You can see many advertisements for sale, and there will be many shortcomings in function. The manufacturing cost of 5,000 yuan is absolutely impossible to surpass the core functions of the above two advanced vehicles from the United States.