https://padlet.com/harmonicdrivesystem/harmonicdrive en-us 2022-05-20 10:42:50 UTC 2022-05-20 10:47:06 UTC hello@padlet.com harmonicdrivesystem https://padlet.com/harmonicdrivesystem/harmonicdrive/wish/2192825062 2022-05-20 10:43:44 UTC https://padlet.com/harmonicdrivesystem/harmonicdrive/wish/2192825062 harmonicdrivesystem https://padlet.com/harmonicdrivesystem/harmonicdrive/wish/2192825300 2022-05-20 10:44:03 UTC https://padlet.com/harmonicdrivesystem/harmonicdrive/wish/2192825300 harmonicdrivesystem https://padlet.com/harmonicdrivesystem/harmonicdrive/wish/2192827943 A harmonic drive gearbox, which UK Harmonic Drives offers, is a specialised type of gearbox that uses a harmonic drive system to transmit power. It is primarily used for its high gear reduction ratio, small size, and excellent torsional stiffness. One of the best advantages of using a gearbox is its efficiency. A typical harmonic drive's efficiency is 90% or greater in real shaft-to-shaft tests.

When selecting the right harmonic drive gearbox for your needs, there are a few key things that you will want to consider. This article will cover these key factors.

Service factor

At its core, a service factor is the starting point for most harmonic drive gearbox makers. This tool is used to compensate for issues such as a style of input, operating time per day, and any shock or vibration that may be found in the application.

An irregular shock, such as a grinding operation, will necessitate a higher service factor than a uniformly loaded application. Similarly, the service factor of a unit that is used only occasionally will be lower than that of one that is utilised 24 hours per day.

Overhung load

The maximum overhung load for a certain unit size is determined in the gearbox manufacturer's catalogue or website. If the load in an application exceeds the permitted limit, the gearbox may need to be upsized to accommodate the overhanging loading.

Mounting

Manufacturers of gearboxes provide a wide range of options for each unit size, although there are several other choices. There are numerous alternative possibilities, including mounting feet for either above or below the gearbox's body, hollow outputs, and input/output arrangement. Harmonic drive system manufacturers provide mounting choices and dimensional information in catalogues and websites.

Speed output

If a specific speed output is necessary, the gearbox must keep that speed while delivering adequate torque to the driven load.

Service factor

The service factor of an automatic harmonic drive gearbox is the percentage of its rated torque that it can endure for short durations. If the output will be subjected to frequent quick accelerations or occasional load spikes, a large service factor is required.

A gear reducer does not include a fan, so the service factor is based on how many hours a day it is used. The larger the case needs to be to dissipate the produced heat as production shifts get longer.

Mounting and connection characteristics

If the gearbox mount location has size and profiles limitations, the gearbox's dimensions, form, and configuration must be considered. The efficiency of various types of gears varies greatly; planetary gear trains are typically the smallest and spur gears take up a larger amount of space.

Backlash

Backlash is the amount of misalignment in the gears' meshing in the gearbox, which leads to mechanical shock when the gearbox is switched on or off.

Torque output

The harmonic drive gearbox must be able to produce enough torque to drive the machinery it is linked to. This includes the torque required to start and accelerate the equipment, which may be considerably greater than ordinary operational torque - as well as torque generated during jams and load shocks.

Radial load

The force on the output shaft of a gearbox at right angles, such as when a belt pulley or sprocket is used to connect the gearbox to the driven load, is known as a radial load. Gearboxes have varying radial load tolerances, so be sure that your application's operational conditions will allow for it.

Type of service

A simple AC motor driving an even load is coupled to a harmonic drive system. This data comes from gearbox manufacturers' charts, which list various types of services. The design engineer must know the input horsepower, application type, and target ratio to utilise these charts.

Lubricant, seals and motor integration

After you've determined the gearbox's dimensions and configuration, a few more parameters are left. Gearboxes do not generally contain lubrication when shipped. This is something that

Harmonic drive gearboxes offer several advantages over traditional gearboxes, including high torque-to-weight ratios, compact size, and low vibration. If you're looking for an efficient, reliable way to transmit power from your motor to your load, consider investing in a harmonic drive gearbox. Use the things that this article has discussed and you will surely get a harmonic drive that will serve you well.

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