Low backlash, ultra-quiet, high wear resistance
Worm Gear
Definition of worm gear
Everyone has doubts about what worm gear is. A worm gear is a gear consisting of a shaft with a helical thread, which meshes with and drives the gear. A worm gear is an old-fashioned gear, a version of one of six simple machines. A worm gear is a screw that interfaces with a screw that looks like standard spur gear, with slightly angled and curved teeth.
It changes the rotational motion by 90 degrees, and the plane of motion also changes due to the position of the worm on the worm wheel (or “wheel” for short). They usually consist of steel worms and brass wheels.
Special worm gear for pipe cutting machine
Product name: special worm gear for pipe-cutting machine
Category: Worm Gear
Product introduction: A full range of worm gears in the pipe cutting machine industry
Worm gear for automotive EPS
Product name: Worm gear for automotive EPS
Category: High Precision Worm Gear
Product introduction: ZC1 tooth shape, self-locking
ZC1 series 6-head worm gear
Product name: ZC1 series 6-head worm gear
Category: High Precision Worm Gear
Product introduction:
1. High precision, good rigidity, using special worm gear copper alloy, wear resistance, high strength
2. Dedicated, low inertia coupling for servo motor
Features of worm gears
1. A large transmission ratio can be obtained, which is more compact than the staggered shaft helical gear mechanism.
2. The meshing tooth surfaces of the two wheels are in line contact, and its bearing capacity is much higher than that of the staggered shaft helical gear mechanism. 3. The worm drive is equivalent to the screw drive, which is a multi-tooth meshing drive, so the drive is stable and the noise is small.
4. It is self-locking. When the lead angle of the worm is less than the equivalent friction angle between the meshing gear teeth, the mechanism has self-locking properties and can achieve reverse self-locking, that is, only the worm can drive the worm gear, but the worm cannot be driven by the worm gear. For example, the self-locking worm mechanism used in hoisting machinery, its reverse self-locking can play a role in safety protection.
How a worm gear is made
Worm gears are the most compact type of drivetrain. They are able to fit in very small spaces and still provide a high rate of reduction. With proper installation and installation, the worm gear system runs smoothly and quietly.
The typical way to make a worm gear is to use a hob or cutter for hobbing; this cutting tool is similar to the gears that the worm gear will mate with. Worms can be turned, hobbed, milled or ground.
Worm Gear Lubrication
Proper lubrication is essential for worm gear sets. When turning, the worm pushes the load applied to the worm gear. This results in sliding friction compared to spur gears which mainly generate rolling friction. The best way to minimize friction and metal-to-metal wear between the worm and worm gear is to use a viscous, high-temperature compound gear lubricant (ISO 400 to 1000) with additives. While they can extend the life and improve performance, no lubricant additive can indefinitely prevent or overcome sliding wear.
Rolling friction on a typical gear tooth requires little or no lubricating film to fill the space and separate the two components. Since slip occurs on either side of the tooth apex, a slightly higher lubricant viscosity than strictly required for rolling wear is required to overcome this load. Sliding occurs at a relatively low speed.
Primary worm gear application
One of the most common uses of worm gears is in conveyor belts. Typical worm gears or worm drives can only turn in one direction, making them ideal for conveyor belts that need to be stationary when closed. This locking mechanism allows the worm gear also to be used for safety gates. Usually, security doors have two worm drives, one to open the door and the other to close the door. Worm gear for this purpose means that the safety gate can be locked.
Worm gear drives can be used in apartment and multi-story office buildings, especially elevators or lifts. Also, the irreversible nature of worm gears makes them valuable for elevator mechanics. Although they have an operational function, the elevator’s worm gear also acts as a fail-safe auxiliary braking system, preventing the elevator from free-falling down the hoistway (if the main braking mechanism fails).
Ingenious research and development, casting Seiko quality
Introduction to the working principle of worm gear drive
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Concentration Creates Professionalism
â—†Integrating research and development, production, and sales into one, the low-gap servo particular worm gear and worm manufacturing expert.
â—†Has many engineers and technicians with more than ten years of industry experience.
â—†The company has gear detectors, spectrometers, three-coordinates, and other high-precision testing equipment.
Advanced equipment and sufficient production capacity
Accuracy reaches IT4-IT8 level, quality assurance
â—†Strictly implement the ISO9001 quality management system
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