China Hot selling big alloy casting helical/bevel/spur/herringbone/inner/sprocket/worm/ring/rack/ CZPT wholesaler

Descrição do produto

1.P roduct Description
 

Thi s Gear shaft, Herringbone Gear Shaft, Bevel Gear, Eccentric Shaft mainly used on vessel engine, fan internal gear
2.1. Gear Shaft Processing
Gear Shaft drawing CHECK, Make Forging Mold, Forging Mold Quality Inspection Check, Machine Processing, Check Size\Hardness\Surface Finish and other technical parameters on drawing. 
2.2. Herringbone Gear Shaft Package
Spray anti-rust oil on Herringbone Gear Shaft, Wrap waterproof cloth around Gear Shaft for reducer, Prepare package by shaft shape&weight to choose steel frame, steel support or wooden box etc.
2.3. OEM Customized Gear Shaft
We supply OEM SERVICE, customized herringbone gear shaft with big module, more than 1tons big weight, more than 3m length, 42CrMo/35CrMo or your specified required material gear shaft. 

2.Product Technical info.

Módulo m Range: 5~70
Gear Teeth Number z OEM by drawing’s technical parameters
Teeth Height H OEM by drawing’s technical parameters
Teeth Thickness S OEM by drawing’s technical parameters
Tooth pitch P OEM by drawing’s technical parameters
Tooth addendum Ha OEM by drawing’s technical parameters
Tooth dedendum Hf OEM by drawing’s technical parameters
Working height h’ OEM by drawing’s technical parameters
Bottom clearance C OEM by drawing’s technical parameters
Ângulo de pressão α OEM by drawing’s technical parameters
Helix Angle,    OEM by drawing’s technical parameters
Surface hardness HRC Range: HRC 50~HRC63(Quenching)
Dureza: HB Range: HB150~HB280; Hardening Tempering/ Hardened Tooth Surface 
Acabamento da superfície   Range: Ra1.6~Ra3.2
Tooth surface roughness Ra Range: ≥0.4
Gear Accuracy Grade   Grade Range: 5-6-7-8-9 (ISO 1328)
Diâmetro D Range: 1m~16m
Peso Kg Range: Min. 100kg~Max. 80tons Single Piece
Gear Position   Internal/External Gear
Toothed Portion Shape   Spur Gear/Bevel/Spiral/Helical/Straight
Shaft shape   Herringbone Gear Shaft / Gear Shaft / Eccentric Shaft / Spur Gear / Girth Gear / Gear Wheel
Material Forging/
Casting
Forging/ Casting 45/42CrMo/40Cr or OEM
Manufacturing Method   Cut Gear
Gear Teeth Milling  
Gear Teeth Grinding  
Tratamento térmico   Quenching /Carburizing
Sand Blasting   Null
Testing   UT\MT
Trademark   TOTEM/OEM
Aplicativo   Gearbox, Reducer,
Petroleum,Cement,Mining,Metallurgy etc.
Wind driven generator,vertical mill reducer,oil rig helical gear,petroleum slurry pump gear shaft
Transport Package   Export package (wooden box, steel frame etc.)
Origem   China
HS Code   8483409000

Material Comparison List

 STEEL CODE GRADES COMPARISON
CHINA/GB ISO ГΟСТ ASTM JIS DIN
45 C45E4 45 1045 S45C CK45
40Cr 41Cr4 40X 5140 SCr440 41Cr4
20CrMo 18CrMo4 20ХМ 4118 SCM22 25CrMo4
42CrMo 42CrMo4 38XM 4140 SCM440 42CrMo4
20CrMnTi   18XГT   SMK22  
20Cr2Ni4   20X2H4A      
20CrNiMo 20CrNiMo2 20XHM 8720 SNCM220 21NiCrMo2
40CrNiMoA   40XH2MA/
40XHMA
4340 SNCM439 40NiCrMo6/
36NiCrMo4
20CrNi2Mo 20NiCrMo7 20XH2MA 4320 SNCM420  

3.Totem Service

TOTEM Machinery focus on supplying GEAR SHAFT, ECCENTRIC SHAFT, HERRINGBONE GEAR, BEVEL GEAR, INTERNAL GEAR and other parts for transmission devices & equipments(large industrial reducers & drivers). Which were mainly used in the fields of port facilities, cement, mining, metallurgical industry etc. We invested in several machine processing factories,forging factories and casting factories,relies on these strong reliable and high-quality supplier network, to let our customers worry free.  

TOTEM Philosophy: Quality-No.1, Integrity- No.1, Service- No.1 

24hrs Salesman on-line, guarantee quick and positive feedback. Experienced and Professional Forwarder Guarantee Log. transportation.

4.About TOTEM

1. Workshop & Processing Strength

2. Testing Facilities

3. Customer Inspection & Shipping

5. Contact Us

ZheJiang CHINAMFG Machinery Co.,Ltd
 
Facebook: ZheJiang Totem

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Aplicativo: Motor, Motorcycle, Machinery, Marine, Cement
Dureza: Superfície dentária endurecida
Posição da marcha: Internal/External
Método de fabricação: Cast Gear
Formato da porção dentada: Bevel Wheel
Material: Cast Steel
Personalização:
Disponível

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Solicitação personalizada

engrenagem sem-fim

Qual é a vida útil típica de uma engrenagem sem-fim?

A vida útil de uma engrenagem sem-fim típica pode variar dependendo de diversos fatores, incluindo a qualidade dos materiais, o projeto, as condições de operação, as práticas de manutenção e a aplicação específica. A seguir, uma explicação detalhada dos fatores que influenciam a vida útil de uma engrenagem sem-fim:

1. Qualidade dos materiais: A escolha dos materiais utilizados na construção da engrenagem sem-fim impacta significativamente sua vida útil. Materiais de alta qualidade, como aço temperado ou bronze, oferecem maior durabilidade, resistência ao desgaste e longevidade em comparação com materiais de qualidade inferior. A seleção de materiais adequados com base nos requisitos da aplicação é crucial para se obter uma vida útil mais longa.

2. Considerações de projeto: O projeto da engrenagem sem-fim, incluindo fatores como perfil do dente, tamanho e distribuição de carga, pode influenciar sua vida útil. Engrenagens sem-fim bem projetadas, com geometria de dente otimizada e capacidade de carga adequada, tendem a ter uma vida útil mais longa. Além disso, recursos como sistemas de lubrificação e mecanismos anti-folga também podem contribuir para maior durabilidade e prolongamento da vida útil.

3. Condições de funcionamento: As condições de operação da engrenagem sem-fim desempenham um papel significativo na determinação de sua vida útil. Fatores como magnitude da carga, velocidade, temperatura e condições ambientais podem afetar as características de desgaste e fadiga da engrenagem. A escolha adequada da engrenagem sem-fim para atender aos requisitos da aplicação e a garantia de que ela opere dentro dos limites especificados podem ajudar a prolongar sua vida útil.

4. Práticas de manutenção: A manutenção regular e a lubrificação adequada são essenciais para maximizar a vida útil de uma engrenagem sem-fim. A lubrificação adequada ajuda a reduzir o atrito, o desgaste e a geração de calor, prolongando assim a vida útil da engrenagem. Inspeções regulares, reposição de lubrificante e substituição oportuna de componentes desgastados ou danificados são práticas de manutenção importantes que podem impactar positivamente a vida útil da engrenagem sem-fim.

5. Fatores específicos da aplicação: A aplicação específica em que a engrenagem sem-fim é utilizada também pode influenciar sua vida útil. Fatores como ciclos de operação, níveis de torque, cargas de choque e ciclos de trabalho variam entre as aplicações e podem impactar o desgaste e a fadiga sofridos pela engrenagem. Compreender os requisitos e demandas específicos da aplicação e selecionar uma engrenagem sem-fim com a classificação e o projeto adequados para essas condições pode contribuir para uma vida útil mais longa.

Devido às variações em materiais, projetos, condições de operação e práticas de manutenção, é difícil determinar uma vida útil específica para uma engrenagem sem-fim típica. No entanto, com a seleção, instalação e manutenção adequadas, as engrenagens sem-fim podem ter uma vida útil que varia de alguns anos a décadas, dependendo dos fatores mencionados acima.

Vale ressaltar que o monitoramento do desempenho da engrenagem sem-fim por meio de inspeções regulares e a correção de quaisquer sinais de desgaste, danos ou folga excessiva podem ajudar a identificar problemas potenciais precocemente e prolongar a vida útil da engrenagem. Além disso, seguir as diretrizes e recomendações do fabricante em relação aos intervalos de manutenção, tipos de lubrificação e limites de operação pode contribuir significativamente para maximizar a vida útil de uma engrenagem sem-fim.

engrenagem sem-fim

What are the potential challenges in designing and manufacturing worm gears?

Designing and manufacturing worm gears can present several challenges due to their unique characteristics and operating conditions. Here’s a detailed explanation of the potential challenges involved:

  1. Complex geometry: Worm gears have complex geometry with helical threads on the worm shaft and corresponding teeth on the worm wheel. Designing the precise geometry of the gear teeth, including the helix angle, lead angle, and tooth profile, requires careful analysis and calculation to ensure proper meshing and efficient power transmission.
  2. Gear materials and heat treatment: Selecting suitable materials for worm gears is critical to ensure strength, wear resistance, and durability. The materials must have good friction and wear properties, as well as the ability to withstand the sliding and rolling contact between the worm and the worm wheel. Additionally, heat treatment processes such as carburizing or induction hardening may be necessary to enhance the gear’s surface hardness and improve its load-carrying capacity.
  3. Lubrication and cooling: Worm gears operate under high contact pressures and sliding velocities, resulting in significant heat generation and lubrication challenges. Proper lubrication is crucial to reduce friction, wear, and heat buildup. Ensuring effective lubricant distribution to all contact surfaces, managing lubricant temperature, and providing adequate cooling mechanisms are important considerations in worm gear design and manufacturing.
  4. Backlash control: Controlling backlash, which is the clearance between the worm and the worm wheel, is crucial for precise motion control and positional accuracy. Designing the gear teeth and adjusting the clearances to minimize backlash while maintaining proper tooth engagement is a challenge that requires careful consideration of factors such as gear geometry, tolerances, and manufacturing processes.
  5. Manufacturing accuracy: Achieving the required manufacturing accuracy in worm gears can be challenging due to their complex geometry and tight tolerances. The accurate machining of gear teeth, maintaining proper tooth profiles, and achieving the desired surface finish require advanced machining techniques, specialized tools, and skilled operators.
  6. Noise and vibration: Worm gears can generate noise and vibration due to the sliding contact between the gear teeth. Designing the gear geometry, tooth profiles, and surface finishes to minimize noise and vibration is a challenge. Additionally, the selection of appropriate materials, lubrication methods, and gear housing design can help reduce noise and vibration levels.
  7. Efficiency and power loss: Worm gears inherently have lower efficiency compared to other types of gear systems due to the sliding contact and high gear ratios. Minimizing power loss and improving efficiency through optimized gear design, material selection, lubrication, and manufacturing accuracy is a challenge that requires careful balancing of various factors.
  8. Wear and fatigue: Worm gears are subjected to high contact stresses and cyclic loading, which can lead to wear, pitting, and fatigue failure. Designing the gear teeth for proper load distribution, selecting appropriate materials, and applying suitable surface treatments or coatings are essential to mitigate wear and fatigue issues.
  9. Cost considerations: Designing and manufacturing worm gears can be cost-intensive due to the complexity of the gear geometry, material requirements, and precision manufacturing processes. Balancing performance requirements with cost considerations is a challenge that requires careful evaluation of the gear’s intended application, performance expectations, and budget constraints.

Addressing these challenges requires a comprehensive understanding of gear design principles, manufacturing processes, material science, and lubrication technologies. Collaboration between design engineers, manufacturing experts, and material specialists is often necessary to overcome these challenges and ensure the successful design and production of high-quality worm gears.

engrenagem sem-fim

How do you calculate the gear ratio of a worm gear?

Calculating the gear ratio of a worm gear involves determining the number of teeth on the worm wheel and the pitch diameter of both the worm and worm wheel. Here’s the step-by-step process:

  1. Determine the number of teeth on the worm wheel (Zroda sem-fim). This information can usually be obtained from the gear specifications or by physically counting the teeth.
  2. Measure or determine the pitch diameter of the worm (Dminhoca) and the worm wheel (Droda sem-fim). The pitch diameter is the diameter of the reference circle that corresponds to the pitch of the gear. It can be measured directly or calculated using the formula: Dpitch = (Z / P), where Z is the number of teeth and P is the circular pitch (the distance between corresponding points on adjacent teeth).
  3. Calculate the gear ratio (GR) using the following formula: GR = (Zroda sem-fim / Zminhoca) * (Droda sem-fim / Dminhoca).

The gear ratio represents the speed reduction and torque multiplication provided by the worm gear system. A higher gear ratio indicates a greater reduction in speed and higher torque output, while a lower gear ratio results in less speed reduction and lower torque output.

It’s worth noting that in worm gear systems, the gear ratio is also influenced by the helix angle and lead angle of the worm. These angles determine the rate of rotation and axial movement per revolution of the worm. Therefore, when selecting a worm gear, it’s important to consider not only the gear ratio but also the specific design parameters and performance characteristics of the worm and worm wheel.

China Hot selling big alloy casting helical/bevel/spur/herringbone/inner/sprocket/worm/ring/rack/ CZPT wholesaler China Hot selling big alloy casting helical/bevel/spur/herringbone/inner/sprocket/worm/ring/rack/ CZPT wholesaler
editor by CX 2023-12-29

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