EVER-POWER GROUP CO., LTD. IS A SPECIALIST IN MAKING ALL KINDS OF MECHANICAL TRANSMISSION AND HYDRAULIC TRANSMISSION LIKE: PLANETARY GEARBOXES, WORM REDUCERS, IN-LINE HELICAL GEAR SPEED REDUCERS, PARALLEL SHAFT HELICAL GEAR REDUCERS, HELICAL BEVEL REDUCERS, HELICAL WORM GEAR REDUCERS, AGRICULTURAL GEARBOXES, TRACTOR GEARBOXES, AUTO GEARBOXES, PTO DRIVE SHAFTS, SPECIAL REDUCER & RELATED GEAR COMPONENTS AND OTHER RELATED PRODUCTS, SPROCKETS, HYDRAULIC SYSTEM, VACUUM PUMPS, FLUID COUPLING, GEAR RACKS, CHAINS, TIMING PULLEYS, UDL SPEED VARIATORS, V PULLEYS, HYDRAULIC CYLINDER, GEAR PUMPS, SCREW AIR COMPRESSORS, SHAFT COLLARS LOW BACKLASH WORM REDUCERS AND SO ON. FURTHERMORE, WE CAN PRODUCE CUSTOMIZED VARIATORS, GEARED MOTORS, ELECTRIC MOTORS, AND OTHER HYDRAULIC PRODUCTS ACCORDING TO CUSTOMERS’ DRAWINGS.
|Gear Processing||Grinding finish by HOFLER Grinding Machines|
|Efficiency||94%~98% (depends on the transmission stage)|
|Lubricating oil||Shell Omala synthetic oil or mineral oil, or similar brand|
|Heat treatment||tempering, cementing, quenching, etc.|
|Brand of oil seal||NAK or another brand|
|Temp. rise (MAX)||40 °|
|Temp. rise (Oil)(MAX)||50 °|
Gearbox and reducer application scenarios
|Gearbox for Wood Handling||Decades of experience in the design and manufacture of mechanical power transmission technology for fibre, paper and tissue applications ensures we are a reliable supplier of Gearbox for wood handling applications.|
|Gearbox for Chemical & Mechanical Pulping||Gearbox for Chemical pulping is used for materials that need to be strong or combined with mechanical pulp to give additional product characteristics. Cooking, washing, bleaching and filter drives are key to this process and we supply robust gear systems for these very applications.|
|Gearbox for Chemical Recovery||Gearbox for Characterised by operational reliability and high efficiency, HZPT drive solutions offer maximum performance throughout your chemical processing equipmentâ€ s entire lifecycle.|
|Gearbox for Stock Preparation||We deliver a complete range of mechanical drive solutions for each stock preparation phase. Our gear boxes are tailored to our customersâ€ specific applications to ensure optimum performance for maximum results and process availability.|
|Gearbox for Recycling||Our fibre recycling gearboxes are tailored to each applicationâ€ s specific requirements and duty cycle. Engineered to deliver optimum performance, our drum pulper drives can be supplied as a single optimised solution, or as individual components.|
|Gearbox for Paper Making||Running at super high speeds, paper and board machines demand near-constant gear unit operation and require high reliability.|
|Gearbox for Panel board Production||HZPT engineers high-performance gear systems for continuous press, calendar, and dryer applications used in the production of the panelboard.|
|Gearbox for Tissue Production||Tissue machines are typically demanding applications, and HZPT is proud to be the market-leading manufacturer of gearboxes for Yankee Cylinders.
|Gearbox for Finishing||Calling on almost 3 centuries of industrial gear engineering expertise, HZPT designs, develops, and manufactures winder and unwinder drive systems for finishing applications.|
|Application:||Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car|
|Hardness:||Hardened Tooth Surface|
|Gear Shape:||Conical – Cylindrical Gear|
Self-Locking Properties in a Worm Gearbox
Yes, worm gearboxes exhibit self-locking properties, which can be advantageous in certain applications. Self-locking refers to the ability of a mechanism to prevent the transmission of motion from the output shaft back to the input shaft when the system is at rest. Worm gearboxes inherently possess self-locking properties due to the unique design of the worm gear and worm wheel.
The self-locking behavior arises from the angle of the helix on the worm shaft. In a properly designed worm gearbox, the helix angle of the worm is such that it creates a mechanical advantage that resists reverse motion. When the gearbox is not actively driven, the friction between the worm threads and the worm wheel teeth creates a locking effect.
This self-locking feature makes worm gearboxes particularly useful in applications where holding a load in position without external power is necessary. For instance, they are commonly used in situations where there’s a need to prevent a mechanism from backdriving, such as in conveyor systems, hoists, and jacks.
However, it’s important to note that while self-locking properties can be beneficial, they also introduce some challenges. The high friction between the worm gear and worm wheel during self-locking can lead to higher wear and heat generation. Additionally, the self-locking effect can reduce the efficiency of the gearbox when it’s actively transmitting motion.
When considering the use of a worm gearbox for a specific application, it’s crucial to carefully analyze the balance between self-locking capabilities and other performance factors to ensure optimal operation.
Materials Used for Worm Gears
Worm gears are manufactured using a variety of materials to meet different application requirements. Some commonly used materials for worm gears include:
- Steel: Steel is a popular choice for worm gears due to its strength, durability, and wear resistance. It can handle heavy loads and is often used in industrial applications.
- Bronze: Bronze offers good lubricity and is commonly used for the worm gear (worm) component. It provides effective wear resistance and works well in applications where quiet operation is essential.
- Cast Iron: Cast iron is known for its high strength and durability. It’s often used for worm gears in applications where shock loads or heavy-duty conditions are expected.
- Aluminum: Aluminum worm gears are lightweight and corrosion-resistant, making them suitable for applications where weight reduction is important.
- Plastic: Some worm gears are made from plastic materials such as nylon or acetal. These materials are often chosen for their self-lubricating properties and quiet operation.
- Composite Materials: Composite materials can offer a combination of properties, such as lightweight construction and corrosion resistance. They can be suitable for specific applications.
The choice of material depends on factors such as the application’s load, speed, operating environment, and required performance characteristics. It’s important to consider these factors when selecting the appropriate material for worm gears to ensure optimal performance and longevity.
What is a Worm Gearbox and How Does It Work?
A worm gearbox, also known as a worm gear reducer, is a mechanical device used to transmit rotational motion and torque between non-parallel shafts. It consists of a worm screw and a worm wheel, both of which have helical teeth. The worm screw resembles a threaded cylinder, while the worm wheel is a gear with teeth that mesh with the worm screw.
The working principle of a worm gearbox involves the interaction between the worm screw and the worm wheel. When the worm screw is rotated, its helical teeth engage with the teeth of the worm wheel. As the worm screw rotates, it translates the rotational motion into a perpendicular motion, causing the worm wheel to rotate. This perpendicular motion allows the worm gearbox to achieve a high gear reduction ratio, making it suitable for applications that require significant speed reduction.
One of the key features of a worm gearbox is its ability to provide a high gear reduction ratio in a compact design. However, due to the sliding nature of the meshing teeth, worm gearboxes may exhibit higher friction and lower efficiency compared to other types of gearboxes. Therefore, they are often used in applications where efficiency is not the primary concern but where high torque and speed reduction are essential, such as conveyor systems, elevators, automotive steering systems, and certain industrial machinery.
editor by CX 2023-10-23