Curved Gear Rack

Luoyang Yujie Industry&Trade Co., Ltd is one of the most experienced manufacturers and suppliers of curved gear rack in China. Please feel free to buy cheap curved gear rack for sale here from our factory. All customized products are with high quality and competitive price.

 

 

 

Curved gear rack is a rack with an arc profile, and its teeth are distributed on a section of an arc. It can be regarded as a linear rack bent into an arc around a center of a circle. Unlike the conversion of linear motion and rotational motion in ordinary rack transmission, Curved gear racks are usually used to achieve motion transmission or specific mechanical actions related to arc trajectories, and are often used in some mechanical devices that require special motion methods, such as arc conveying mechanisms of some automated production lines, specific indexing devices, etc.

 

 

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Milling processing

First, according to the design size and shape of the Curved gear rack, use a CNC milling machine or an ordinary milling machine for rough milling to remove most of the excess material and form a rough arc profile and tooth shape.

 

Then fine milling is performed to improve the accuracy and surface quality of the tooth shape, and to ensure that parameters such as tooth pitch and tooth angle meet the design requirements. In the fine milling process, high-precision tools and advanced processing technology are required to ensure the processing accuracy of the rack.

 

Heat treatment

The processed Curved gear rack is heat treated to improve its hardness, strength and wear resistance. Common heat treatment methods include quenching and tempering.

 

Quenching can make the tooth surface of the rack obtain higher hardness and strength, improve its load-bearing capacity and wear resistance; tempering can eliminate the internal stress generated during the quenching process, improve the toughness of the rack, and prevent defects such as cracks.

 

Grinding

In order to further improve the accuracy and surface quality of the Curved gear rack, grinding is usually required. Grinding can finely process the tooth surface, reduce the roughness of the tooth surface, and improve the accuracy and dimensional stability of the tooth shape.

 

A special gear grinding machine is used to grind the rack. According to the material and precision requirements of the rack, the appropriate grinding wheel and grinding process parameters are selected to achieve the ideal processing effect.

 

 

Medium carbon steel

Such as 45 steel, etc., has good comprehensive mechanical properties. After proper heat treatment, it can obtain higher strength and hardness, and has certain toughness. It is suitable for some Curved gear racks that do not have particularly high requirements for load-bearing capacity and wear resistance. The advantages are relatively low price and good processing performance, and various heat treatment processes can be used to meet different use requirements. The disadvantage is that under high-strength and high-wear-resistant working conditions, the performance may not be as good as alloy steel.

 

Alloy structural steel

Commonly used are 20CrMnTi, 40Cr, etc. This type of steel has high strength, toughness and wear resistance. After heat treatment, it can obtain good comprehensive mechanical properties. It is suitable for Curved gear racks that bear large loads and require high wear resistance and fatigue resistance. 20CrMnTi has good carburizing performance, high surface hardness after carburizing, good toughness in the core, and can well meet the requirements of wear resistance of rack tooth surface and impact resistance of tooth root. 40Cr has high hardenability and good comprehensive mechanical properties after quenching and tempering. The disadvantage of alloy structural steel is that it is expensive and relatively difficult to process.

 

Stainless steel

In some environments with corrosion resistance requirements, such as food processing, medicine, chemical industry and other industries, it is necessary to use arc-shaped racks made of stainless steel. Common stainless steel materials include 304, 316, etc. 304 stainless steel has good corrosion resistance and oxidation resistance, and can maintain good performance in general acid-base environment and humid environment. 316 stainless steel has better corrosion resistance, especially strong tolerance to chloride ions, and is suitable for some harsher corrosive environments. Stainless steel racks are expensive and difficult to process, but their good corrosion resistance can ensure the service life and reliability of the rack in special working environments.

 

 

Turntables and Indexing Mechanisms

Applications: Large CNC rotary tables (e.g., the worktable of a wind turbine flange machining machine, which requires 360° continuous rotation) and indexing plates (e.g., workpiece indexing on a gear machining machine, enabling precise angular positioning). 

Engineering Machinery Rotary Mechanism

Applications: "Upper body rotation mechanism" (driving the cab and bucket around the chassis) of excavators and loaders, and "slewing tower drive" of tower cranes.

Stage and Amusement Equipment

Applications: "Rotating platform drive" for large stages (such as circular theater stages, achieving synchronized rotation of multiple zones), and "slewing tower drive" for amusement rides. Arc Track Trolley Drive (such as the arc drive in the hoist section of a roller coaster).

Specialty Ships and Marine Equipment

Applications: Crane slewing mechanisms on ship decks (rotating the boom around the hull), and wave compensation mechanisms on offshore platforms (meshing the arc rack with gears to offset wave-induced arc motion).

 

 

 

 

Tel: +86-379-65163600

Phone: +86-15036387078

Envelope: sales@yujieindustry.com

Fax:+86-379-65163600

Address:No.9, Sanxi Road, Jianxi Industrial Park, Luoyang City, Henan, China 471003

Whatsapp: 8615036387078

 

 

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