Electric Drive Motor Retrofit

   / Electric Drive Motor Retrofit #61  
Anytime you convert one source of power to another, there's loss of efficiency.

I don't see how an articulated machine that currently has 4 hydraulic wheel motors could replace those wheel motors with electric wheel motors (see past posts on how the hydraulic wheel circuits currently work) in any kind of financially responsible manner. :laughing:

Articulated wheel loaders that use differentials front and rear would be more conducive to powering the drivetrain mechanically with an electric motor or two than these hydraulically propelled machines.
 
   / Electric Drive Motor Retrofit #62  
I don稚 know. This is not a trivial exercise.
 
   / Electric Drive Motor Retrofit #63  
Oh, I agree. However, how are you going to control turning on the steering each time you need it? Very complicated and expensive circuitry for sensing.

Put a push button on the dash and have a timer for several minutes with a buzzer warning 10 seconds prior to stopping pump. You could have a pressure switch to keep it on if there is back pressure indicating pump needed.
 
   / Electric Drive Motor Retrofit #64  
I see the proverbial one armed paper hanger here. :)
 
   / Electric Drive Motor Retrofit #66  
   / Electric Drive Motor Retrofit #67  
I see the proverbial one armed paper hanger here. :)
This is the simple way. How about a metal sensor that monitors a toothed wheel on the steering wheel so if it sees motion it starts the pump and then runs it for about 20 seconds. Joy stick could have a push button mounted on the knob or just wiggle the steering wheel a Little. Or just use the knob button to start the pump for 20 seconds.
 
   / Electric Drive Motor Retrofit #68  
This is the simple way. How about a metal sensor that monitors a toothed wheel on the steering wheel so if it sees motion it starts the pump and then runs it for about 20 seconds. Joy stick could have a push button mounted on the knob or just wiggle the steering wheel a Little. Or just use the knob button to start the pump for 20 seconds.

Yeah. A toothed gear on the steering shaft with a proximity switch would work. We used those to count pulses on the drive shaft of our printing press.
 
   / Electric Drive Motor Retrofit #69  
S
Yeah. A toothed gear on the steering shaft with a proximity switch would work. We used those to count pulses on the drive shaft of our printing press.

You got me thinking. I wonder what fork lifts do.
 
   / Electric Drive Motor Retrofit #70  
S

You got me thinking. I wonder what fork lifts do.
Many of the smaller ones use a single drive motor that pivots to turn the machine for the rear axle and the "front axle" has two unpowered wheels. The larger ones often use a single electric motor and a standard differential on the front axle.

Aaron Z
 

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