Re: [Emc-users] Spur gear transmission

On Thursday 03 March 2016 10:29:22 Dave Cole wrote: > On 3/2/2016 11:39 PM, Chris Albertson wrote: > > On Wed, Mar 2, 2016 at 12:28 PM, Dave Cole wrote: > >> Spur gear transmissions are inherently noisy. I think that is why > >> helical gears exist. However they

Re: [Emc-users] Spur gear transmission

On Thursday 03 March 2016 10:27:35 sam sokolik wrote: > The z axis on the k has the z axis servo mounted on the base of the > machine. The power is transferred to the spinning ball nut through a > linear ball spline and atleast 3 sets of zero backlash gear sets. > (including right angle set) > >

Re: [Emc-users] Spur gear transmission

On 3/2/2016 11:39 PM, Chris Albertson wrote: > On Wed, Mar 2, 2016 at 12:28 PM, Dave Cole wrote: > >> Spur gear transmissions are inherently noisy. I think that is why >> helical gears exist. However they typically have higher load >> capacity for the same width of

Re: [Emc-users] Spur gear transmission

The z axis on the k has the z axis servo mounted on the base of the machine. The power is transferred to the spinning ball nut through a linear ball spline and atleast 3 sets of zero backlash gear sets. (including right angle set)

Re: [Emc-users] Spur gear transmission

Spur gear transmissions are inherently noisy. I think that is why helical gears exist. However they typically have higher load capacity for the same width of gear (as I recall). I have a camshaft drive in a hotrod engine that was sold as a noisy gear drive and it is. It sounds like a

Re: [Emc-users] Spur gear transmission

On 3 March 2016 at 10:00, Gregg Eshelman wrote: > Herringbone gear - Wikipedia, the free encyclopedia "Herringbone" isn't a term used in the industry, as far as I know. They tend to call them "double helical" A double helical gear needs one element to have axial float to

Re: [Emc-users] Spur gear transmission

| | | |   | From: Chris Albertson <albertson.ch...@gmail.com> To: Enhanced Machine Controller (EMC) <emc-users@lists.sourceforge.net> Sent: Wednesday, March 2, 2016 9:39 PM Subject: Re: [Emc-users] Spur gear transmission On Wed, Mar 2, 2016 at 12:28 PM, Dave Cole <linuxcnc

Re: [Emc-users] Spur gear transmission

On Wed, Mar 2, 2016 at 12:28 PM, Dave Cole wrote: > Spur gear transmissions are inherently noisy. I think that is why > helical gears exist. However they typically have higher load > capacity for the same width of gear (as I recall). > It is because the teeth are

Re: [Emc-users] Spur gear transmission

On 2 March 2016 at 21:33, Tomaz T. wrote: > Till now I didn't find source for helical gear this small, as I'm limited to > 140mm in diameter for largest gear and I need to reach 1:10 ratio in single > stage. http://hpcgears.com/pdf_c33/24.4-24.7.pdf -- atp If you

Re: [Emc-users] Spur gear transmission

I did some more analysis based on your proposals, also removed torque force (on bigger spur) in opposite direction with which I tried to simulate some friction ... Here is plot with 15 teeth spur:https://www.dropbox.com/s/5i8s34qnixajldk/Plot_3.jpg?dl=0 and here is plot from gearing using

Re: [Emc-users] Spur gear transmission

Spur gear transmissions are inherently noisy. I think that is why helical gears exist. However they typically have higher load capacity for the same width of gear (as I recall). I have a camshaft drive in a hotrod engine that was sold as a noisy gear drive and it is. It sounds like a

Re: [Emc-users] Spur gear transmission

I have a GUI screen for LinuxCNC that embeds as a tab and calculates various gear parameters. You can enter tooth count and size (in mod, DP, CP or mm CP and it calculates OD, PCD and span / number of teeth to measure over for checking cut depth. It is also rather ugly but can be downloaded here:

Re: [Emc-users] Spur gear transmission

a lot of good info here khkgears.net/wp-content/uploads/2015/10/gear_guide.pdf -- Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month

Re: [Emc-users] Spur gear transmission

On 2 March 2016 at 15:52, Chris Albertson wrote: > I am just learning about gears myself. Some one on another forum suggested > I read "Shigley's Mechanical Engineering Design". I can also recommend

Re: [Emc-users] Spur gear transmission

On Wed, Mar 2, 2016 at 7:28 AM, andy pugh wrote: > On 2 March 2016 at 14:52, Tomaz T. wrote: > > Is this normal that transmitted velocity isn't linear anymore, or is > there something wrong with analysis or maybe SW generated spur gears are > not

Re: [Emc-users] Spur gear transmission

With involute tooth shape the transmitted velocity should be nearly perfect. I think the problem might be the small size of the 12 tooth gear. The minimum size gear for mod 1 20 degree should be kept to 13. With 12 teeth you must loose some of the involute at the bottom on the tooth. I think

Re: [Emc-users] Spur gear transmission

On 2 March 2016 at 14:52, Tomaz T. wrote: > Is this normal that transmitted velocity isn't linear anymore, or is there > something wrong with analysis or maybe SW generated spur gears are not > suitable? It might well be correct. 12 teeth is quite a small tooth count.

Re: [Emc-users] Spur gear transmission

If the blue and red arrows are to signify direction of rotation, there is a booboo in the gear drawing, they must be of opposite rotation. Peter Am 02.03.2016 15:52, schrieb Tomaz T.: > I'm working on design and analysis of spur gear transmission with the help of > Solidworks. What I need to do

[Emc-users] Spur gear transmission

I'm working on design and analysis of spur gear transmission with the help of Solidworks. What I need to do is 10:1 transmission ratio, using module 1 size spur gears. Here is what I simulated in SW: - 12 teeth spur gear generated from SW toolbox- 120 teeth spur gear generated from SW toolbox-