• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to secondary sidebar
  • Skip to footer
  • Home
  • Subscribe
  • Your Membership
    • Edit Your Profile
  • Services
    • Advertising
    • Case studies
    • Design
    • Email marketing
    • Lead generation
    • Magazine
    • Press releases
    • Publishing
    • Sponsored posts
    • Webcasting
    • Webinars
    • White papers
    • Writing
  • Shop
    • My Account
    • Cart
  • About
    • Contact
    • Privacy
    • Terms of use
  • Events

Robotics & Automation News

Market trends and business perspectives

  • News
  • Features
  • Sections A-Z
    • Agriculture
    • Aircraft
    • Artificial Intelligence
    • Automation
    • Autonomous vehicles
    • Business
    • Computing
    • Construction
    • Design
    • Drones
    • Economy
    • Energy
    • Engineering
    • Environment
    • Health
    • Humanoids
    • Industrial robots
    • Industry
    • Infrastructure
    • Investments
    • Logistics
    • Manufacturing
    • Marine
    • Material handling
    • Materials
    • Mining
    • Promoted
    • Research
    • Robotics
    • Science
    • Sensors
    • Service robots
    • Software
    • Space
    • Technology
    • Transportation
    • Warehouse robots
    • Wearables
  • Video
  • Webinars
  • White papers
  • Press releases
  • Featured companies
    • AMD Xilinx
    • BlueBotics
    • Elite Robot
    • RGo Robotics
    • SICK Sensor Intelligence
    • Vicor Power
worm gears

Worm gearboxes produce high torque at low cost

May 10, 2016 by Sam Francis

worm gears

Tony Young, director of electrical and automation maintenance company, CP Automation, explains the benefits of worm gearboxes

Worm gearboxes are low cost solutions for producing high torque from relatively small electric motors. Their output shaft is at a 90 degree angle to the motor input shaft and higher reduction ratios are obtained compared to conventional gearbox designs.

It would be hard to imagine how violin or guitar strings could be tuned without the use of worm gears, where each thumb screw is effectively a worm that turns a gear, the shaft from which in turn tightens a string.

A complete turn of the thumb screw results in a much smaller turn of only a few degrees at the string shaft, and therefore much higher torque. More importantly, it provides precise tuning of the guitar string. 

If another gear were to be used on the same plane instead of a worm screw, it would be almost miniscule by comparison.

Another advantage, in the context of guitar strings, is that the thumb screws can be spaced out at right angles to the strings themselves, where their close spacing would make it impossible to have gears placed side by side.

This simple example serves by way of introduction to the application of worm gearboxes in an industrial context. 

Higher reduction ratios up to 300:1 are a key feature of worm gearboxes, whereas planetary gearboxes for example will typically have ratios up to 50:1.

The 90 degree shaft angle is an advantage in the fact that an engineer can fit a gearbox into a smaller space than that required for a planetary gearbox.

Smaller dimensions mean better portability for mobile applications, for example a Hiab crane on the back of a lorry. The worm gear slewing mechanism is extremely reliable and thus keeps maintenance cost at a minimum.

Worm gears are also suitable for winches and hoists on heavy haul tractors, digger derricks and aerial work trucks to provide durability, reliability and safe operation.

CP Automation is now distributing Chiaravalli’s failsafe spring-applied motor gearboxes. The devices are ideal for heavy duty applications such as rolling mills, lifts, conveyors, printing presses and paper converting, as well as portable lifting equipment when coupled to a battery-operated DC motor.

Worm gear boxes are applicable to various industries and they are used in anything from dairies to car wash equipment.

The high torque has safety advantages as well, in applications such as lifts and hoists for instance. The worm drives the gear but it is almost impossible for the gear to drive the worm, like where the load is excessive. In other words, there is no backward drive, which could be dangerous in conventional gearing arrangements.

Available from stock within a week, with optional 24-hour despatch service, the Chiaravalli CH and CHM worm gearboxes could represent a rapid solution for industries where downtime can prove expensive. Engineers can fit both AC and DC motors to a CH or CHM gearbox whereas most gearboxes are only suited to AC motors.

This allows OEMs and machine builders to expand into new markets where portable equipment may be required. By fitting a 12V, 24V, 48V or 90V DC motor, they are ideal for portable battery-operated lifting devices up to five tonnes.

Because worm gearing has such a high ratio, it will not back-drive. However, because the motor’s brake is applied by a spring, it is failsafe. Once the equipment you are lifting is in position, the brake safely holds the motor.

The CH gearbox has a motor mounting flange that can separate from the housing which incorporates the oil seal. This avoids the risk of damaging the oil seal in case of replacement of the input flange and allows the O-Ring to be eliminated.

The worm screw has a ZI involute profile providing a gear ratio up to 1:300 as well as better performance at reduced temperature. The gearboxes and motors are painted with RAL 9022 aluminium colour epoxy powder to protect the parts from oxidation and the micro-blowholes that can come about from die casting pressure. 

The CHM gearbox has a square shape, making it considerably more versatile for mounting. The machining of the components, carried out using numeric control machines, guarantees maximum precision for restricted tolerances, resulting in a product that will remain reliable over time.

The groups are constructed with aluminium casings from sizes 025 to 090, while the sizes 110 and 130 are made from cast iron.

The gears are supplied with at least one filling plug that is also used during testing to check for possible leaks. A connection flange allows two gearboxes to be combined in order to obtain high gearing ratios.

Print Friendly, PDF & Email

Share this:

  • Print
  • Facebook
  • LinkedIn
  • Reddit
  • Twitter
  • Tumblr
  • Pinterest
  • Skype
  • WhatsApp
  • Telegram
  • Pocket

You might also like…

Filed Under: Industry, Manufacturing, News Tagged With: gearboxes, motors, screw, torque, worm

Join the Robotics & Automation News community

Primary Sidebar

Latest articles

  • Choosing the Best Magento Ecommerce Development Company: A Guide to Success
  • How to Promote Your Homemade Food Business Online
  • 3 Best Site to Buy Instagram Followers UK (Real & Cheap)
  • Email Marketing Automation with Retainly
  • Top 10 Amazing Tips to Transport Your Car in 2023
  • Maximizing Profit on Amazon: Utilizing the Amazon FBA Calculator and Analyzing Price History
  • North America Becomes the Fastest-Growing Regional Market for New Battery Facilities in 2022
  • The Ultimate Guide to Artist Alley: Con Prep and the Magic of Acrylic and Custom Keychains
  • Choosing a Robotic Spindle for Deburring
  • The Future of Modern Application Development with .NET

Most Read

  • Snapchat Plus Planet Order 2023 Explained
    Snapchat Plus Planet Order 2023 Explained
  • Why is Money Important in Our Lives?
    Why is Money Important in Our Lives?
  • Top 20 electric vehicle charging station companies
    Top 20 electric vehicle charging station companies
  • How to Track a Phone Number on Google Maps
    How to Track a Phone Number on Google Maps
  • Difference Between Three-Phase and Single-Phase Power
    Difference Between Three-Phase and Single-Phase Power
  • Why is My Car Key Stuck in the Ignition?
    Why is My Car Key Stuck in the Ignition?
  • The Future of Personal Computers: What to Expect in the Next Decade
    The Future of Personal Computers: What to Expect in the Next Decade
  • Top 20 programmable logic controller manufacturers
    Top 20 programmable logic controller manufacturers
  • Scientists have found more water in space than they ever knew possible
    Scientists have found more water in space than they ever knew possible
  • What You Need to Know About Fixing an Engine Misfire
    What You Need to Know About Fixing an Engine Misfire

Overused words

ai applications automated automation automotive autonomous business companies company control customers data design development digital electric global industrial industry logistics machine manufacturing market mobile operations platform process production robot robotic robotics robots safety software solution solutions system systems technologies technology time vehicle vehicles warehouse work

Secondary Sidebar

Latest news

  • Choosing the Best Magento Ecommerce Development Company: A Guide to Success
  • How to Promote Your Homemade Food Business Online
  • 3 Best Site to Buy Instagram Followers UK (Real & Cheap)
  • Email Marketing Automation with Retainly
  • Top 10 Amazing Tips to Transport Your Car in 2023
  • Maximizing Profit on Amazon: Utilizing the Amazon FBA Calculator and Analyzing Price History
  • North America Becomes the Fastest-Growing Regional Market for New Battery Facilities in 2022
  • The Ultimate Guide to Artist Alley: Con Prep and the Magic of Acrylic and Custom Keychains
  • Choosing a Robotic Spindle for Deburring
  • The Future of Modern Application Development with .NET

Footer

We are…

Robotics and Automation News was established in May, 2015, and is now one of the most widely-read websites in its category.

Please consider supporting us by becoming a paying subscriber, or through advertising and sponsorships, or by purchasing products and services through our shop – or a combination of all of the above.

Thank you.

Independent

Archivists

May 2016
M T W T F S S
 1
2345678
9101112131415
16171819202122
23242526272829
3031  
« Apr   Jun »

Complex

Old-skool

This website and its associated magazine, and weekly newsletter, are all produced by a small team of experienced journalists and media professionals.

If you have any suggestions or comments, feel free to contact us at any of the email addresses on our contact page.

We’d be happy to hear from you, and will always reply as soon as possible.

Future-facing

Free, fair and legal

We support the principles of net neutrality and equal opportunities.

Member of The Internet Defense League

Copyright © 2023 · News Pro on Genesis Framework · WordPress · Log in

We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept”, you consent to the use of ALL the cookies.
Do not sell my personal information.
Cookie SettingsAccept
Manage consent

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
CookieDurationDescription
cookielawinfo-checkbox-analytics11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional11 monthsThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy11 monthsThe cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
Functional
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytics
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Advertisement
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
Others
Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.
SAVE & ACCEPT