Sizing a Hydraulic motor to rotate Chute on a BX5450

[WoodCarver75]

Hey guys, I have no clue as to what i am doing so i need some help in selecting a Hydraulic motor to rotate my chute on my BX5450 snow blower. I have seen these used on other posts but none of them say what size to use.

 

[Yooper]

Well, since nobody else has replied I’ll take a shot at it. If you’re looking to replicate the design that is in the pictures it won’t take much of a motor. Torque is the issue, not speed. I can’t help you with the amount of torque that it takes to rotate the chute but I think it is safe to say it is inch pounds not foot pounds. Plus you have a torque multiplier with the gear ratio. Notice that a flow control valve has been added to the circuit to control the speed. You will need to consider this in your design.

Just something to consider here. If I were doing this I would use a 12 volt linear actuator. Plenty of power and much easier to run wires and switch versus hydraulic lines and valve. Save a few bucks also. Good luck!

 

[Howling]

Does not take much torque to turn the chute. Too much torque and you could damage the worm or chute gear at end of rotation.

I will second the simple 12 volt motor. Adapted a surplus seat adjuster motor for my chute rotate.

Then a joystick on the control lever to control both the chute rotation motor and height linear actuator. The blower lift and chute controls are all in one place.

 

[NCL4701]

I personally know nothing useful on this subject. You might find something useful in the previous similar discussion in the link below.

https://www.orangetractortalks.com/forums/threads/hydraulic-chute-rotator.27905/post-430632

 

[shelkol]

I haven't had good luck with electric motors. When the ice builds up, the motors stall. Also if you don't get a fast enough motor it takes a long time to turn the chute ( and I am not a patient man). I am looking to convert to hydraulic.

For those of you that think you can just use the curl port on the loader valve, many here have commented on it's being a regenerative port meaning you can't put a hydraulic motor on it. I added a third function kit

 

[kubotasam]

For those of you that think you can just use the curl port on the loader valve, many here have commented on it's being a regenerative port meaning you can't put a hydraulic motor on it. I added a third function kit

Most tractors have a valve with the regenerative function (which does not work as Shelcoil said) and a fourth position on the dump circuit which does not regenerate that will drive a hydraulic motor and will work.

 

[mikester]

You don't need high speeds for the hydraulic motor.

Assuming 16 GPM at your remotes that translates to 3696 cu.inches per minute.

https://www.princessauto.com/en/searchresults?Nr=product.active%3A1&Ntt=hydraulic%20motor*&Nty=1&No=0&Nrpp=50&Rdm=28&searchType=simple&type=search

choose a cheap motor say 7.8 cu.in. per rev
3696/7.8=473.8 RPM

If you want a slower chute turner choose a motor requiring more cu.in/rev

I used a cheap motor on sale for about $180 roughly this size and it works no problem, a little on the fast side but I can infinity regulate the speed with my valve.

I've also used a small electric ATV 1500lb winch for $50 but now you need to run a high amperage supply line and control relays to the blower and you only get one operating speed - slow.

 

[Orange1forme]

Not sure if this help, but another thread on your topic.

Hydraulic Chute Rotator

I have a BX2750 snowblower with a manual chute. Is there any reason I couldn't buy one of these and make a bracket to hold it? http://www.ebay.com/itm/NorTrac-Bi-Rotational-Pump-Motor-6-3-GPM-1-2in-Dia-Shaft-/331673669789?hash=item4d394a909d:g:zz8AAOSw9r1WEqgm

www.orangetractortalks.com

 

[shelkol]

You don't need high speeds for the hydraulic motor.

Assuming 16 GPM at your remotes that translates to 3696 cu.inches per minute.

https://www.princessauto.com/en/searchresults?Nr=product.active%3A1&Ntt=hydraulic%20motor*&Nty=1&No=0&Nrpp=50&Rdm=28&searchType=simple&type=search

choose a cheap motor say 7.8 cu.in. per rev
3696/7.8=473.8 RPM

If you want a slower chute turner choose a motor requiring more cu.in/rev

I used a cheap motor on sale for about $180 roughly this size and it works no problem, a little on the fast side but I can infinity regulate the speed with my valve.

I've also used a small electric ATV 1500lb winch for $50 but now you need to run a high amperage supply line and control relays to the blower and you only get one operating speed - slow.

I don't think a BX is anywhere near 16GPM. I have a BX-2200 and I think it is more like 5GPM

 

[SidecarFlip]

Myself, I use a hydraulic cylinder tapped into a rear remote to rotate the chute via a bellcrank and steel cable arrangement. Efficient and stone simple.