Lost Wax Investment Castings For Bicycle Parts

Product Introduction

Bicycle accessories are a general term for all parts and accessories of the bicycle body. According to the large structural framework of the body, it can be divided into several categories: frame, tire, pedal parts, front fork assembly, chain, flywheel, and so on.

Among the 25 accessories such as the bicycle frame, tires, pedals, brakes, and chains, the basic components are indispensable. Among them, the frame is the skeleton of the bicycle, which bears the greatest weight of people and goods. According to the working characteristics of each accessory, it can be roughly divided into a guiding system, a driving system, and a braking system.

Component

Bicycle bells, bicycle chassis, bicycle brakes, bicycle chain locks, bicycle chain boxes, bicycle chains, bicycle sprocket cranks, bicycle generators, bicycle dynamometers, bicycle brakes, bicycle external transmissions, bicycle frames, bicycle flywheels , bicycle front fork lock, bicycle front fork, bicycle gloves, bicycle hand brake, bicycle handlebar, bicycle handlebar cover, bicycle wheel brake, bicycle light, bicycle lock, bicycle luggage rack, bicycle pliers, bicycle fender, plastic wheel bicycle , bicycle parts production line, bicycle pedals, bicycle pumps, bicycle steel rings, bicycle saddles, bicycle insurance forks, bicycle spare parts, bicycle spokes, bicycle brackets, bicycle steel balls, bicycle tire pumps, bicycle inner tubes, bicycle inner and outer tubes, bicycles Tires, bicycle wind speed boosters, bicycle wrenches, stems (stems), grip sets/straps, headsets, brake ducts, baskets, mirrors, rims, saddles, brake lines, down tubes, Water bottles, locks, chainrings and cranksets, stays, chains, chainstays, seatstays, mud removal, racks, handlebars, brake levers, head tubes, forks, valves, spokes, seatposts, top tubes , Seat tube, air cylinder, pedal, transmission, flywheel, tire, car analysis.

Main accessories

• Frame

The frame component is the basic structure that constitutes the bicycle, and it is also the skeleton and main body of the bicycle. Other components are also directly or indirectly installed on the frame. There are many structural forms of frame components, but they can generally be divided into two categories: men's frames and women's frames.

The frame is generally welded and combined with ordinary carbon copper tubes. In order to reduce tube weight and improve strength, higher-end bicycles are made of low-alloy steel tubes. In order to reduce the resistance of fast running, some bicycles also use streamlined steel pipes.

Since the bicycle is driven by the human body's own driving force and riding skills, the frame becomes an important structure that bears the impact load generated by the bicycle during driving and whether it can carry the human body comfortably and safely. The manufacturing accuracy of the frame components The advantages and disadvantages of the vehicle will directly affect the safety, stability, and briskness of riding. Generally, the spokes are of equal diameter. In order to reduce gravity, there are also spokes with large ends and small diameters in the middle. In order to reduce air resistance, the spokes are made flat and streamlined.

• Tires

There are two types of soft side tires and hard side tires. The soft side tire has a wider section, can fully wrap the inner tube, has a relatively large ground area, and can be suitable for driving on various roads. Hard-sided tires are light in weight and have a small footprint, which is suitable for driving on flat roads. They have the advantages of small resistance and brisk driving.

The pattern on the tire is to increase the friction with the ground. The tire width of the mountain bike is particularly wide, and the pattern is deep, which is also suitable for off-road mountain use. The tire width of road bicycles is particularly narrow, and the pattern is shallow, which is suitable for road venues.

• Pedals

The pedal part is assembled on the left and right cranks of the center shaft part. It is a device that converts the horizontal force into the rotational force. When the bicycle is riding, the pedal force is first transmitted to the pedal part, and then the crank is rotated by the pedal shaft, the crankshaft, the center shaft, and the chain flywheel to turn the rear wheel so that the bike moves forward. Therefore whether the structure and specifications of the pedal parts are suitable will directly affect whether the position of the rider's feet is suitable, and whether the driving of the bicycle can be carried out smoothly.

Pedals: can be divided into integral pedals and combined pedals. No matter what style of pedal must have a tread surface, must be safe and reliable, with a certain anti-skid performance, and can be made of rubber, plastic, or metal materials. Pedals must turn flexibly.

• Fork components

The front fork assembly is in the front position in the bicycle structure, its upper end is connected with the handlebar part, the vehicle frame part is matched with the front tube, and the lower end is matched with the front axle part to form the guiding system of the bicycle.

Turning the handlebar and front fork can change the direction of the front wheel and play a guiding role in the bicycle. In addition, it can also play a role in controlling the bicycle.

The stress of the front fork is in the nature of a cantilever beam, so the front fork must have sufficient strength and other properties.

• Chain

Chains, also known as car chains and roller chains, are installed on even wheels and flywheels. Its function is to transfer the pedal force from the crank and the sprocket to the flywheel and the rear wheel to drive the bicycle forward.

Sprocket: Made of high-strength steel to ensure that it reaches the required pulling force.

• Flywheel

The flywheel is screwed and fixed on the right end of the rear axle with an internal thread, keeps the same plane as the sprocket, and is connected with the sprocket by a chain to form the driving system of the bicycle. From the structure, it can be divided into two categories: single-stage flywheel and multi-stage flywheel.

A single-stage flywheel is also called a single-sprocket flywheel. It is mainly composed of a jacket, a flat block, and a core, a jack, a jack spring, a washer, a wire block, and a few steel balls.

The working principle of its single-stage flywheel: when the pedal is stepped forward, the chain drives the flywheel to rotate forward. The rear wheel turns and the bike moves forward.

When the pedal is stopped, neither the chain nor the jacket rotates, but the rear wheel still drives the core and the jack to rotate forward under the action of inertia. At this time, the inner teeth of the flywheel slide relative to each other, thereby compressing the core to the In the notch of the child, the jack compresses the jack spring again. When the top of the jack tooth slides to the top of the inner tooth of the flywheel, the jack spring is compressed the most, and when it slides forward a little, the jack is bounced to the root of the tooth by the jack spring, making a "click" sound. The core rotates faster, and the jack quickly slides on the inner teeth of each flywheel, making a "click" sound. When the pedals are stepped on in the opposite direction, the jacket rotates in the opposite direction, which will accelerate the sliding of the jack and make the "click" sound more urgent. A multi-stage flywheel is an important part of a bicycle transmission.

The multi-stage flywheel is based on the single-stage flywheel, adding several flywheel pieces, combined with the sprocket on the center shaft, to form various transmission ratios, thereby changing the speed of the bicycle.

Above is Lost Wax Investment Castings for Bicycle Parts.

Detection Systems

Copper Silica Sol Investment Casting