House owners and operators more and more search for equipment that improves productiveness. Skid steer loaders are prime examples. To select up heavier hundreds, full duties quicker, and improve journey pace, skid steers are being designed to ship increased energy and larger power. In the meantime, extra consideration is being paid to operator consolation. Easy, predictable operation is not a want – it’s a requirement.
Excessive-pressure hydraulic pumps are delivering the ability skid steers want, and the market is shifting to cam lobe motors to enhance the efficiency of those pumps. Cam lobe motors supply increased strain scores and larger effectivity than different applied sciences, delivering 30% extra power. Nonetheless, cam lobe motors have traditionally fallen brief in the case of two-speed shifting, package deal measurement, and effectivity all through the pace vary.
Two-speed motors help the trade drive for larger productiveness, delivering increased torque when working and better pace when roading. However an issue arises when shifting between the 2. A sudden change within the wheel pace or torque can create a jarring shock response, leading to machine instability and even a misplaced load. The impact is worse when the machine is chilly. Shocks might be erratic or delayed, undermining driver confidence.
With motors positioned back-to-back in skid steer loaders, size can also be essential. Typical cam lobe motors have a big envelope, which might make meeting and repair a problem in compact machines.
Lastly, beginning effectivity and most pace effectivity generally is a drawback for cam lobe motors. When a machine is stationary, torque effectivity is low, making a weak point in machine efficiency. Additionally, the warmth generated at most pace makes the machine sizzling and wastes vitality on cooling.
Danfoss Energy Options’ new Thorx line of cam lobe motors solves these challenges. The CLM 8 S and CLM 4 S cam lobe motors — designed particularly for building equipment with chain drives, corresponding to skid steer loaders — are actually obtainable. Fashions for different drive varieties are coming quickly.
Danfoss Thorx motors characteristic newly developed two-speed expertise, which reduces shock at pace changeover by 70% and eliminates inconsistencies as a consequence of temperature, leading to smoother, extra predictable machine dealing with.
Thorx motors characteristic a bigger diameter rotary group that allows the parking brake to be built-in within the middle, somewhat than bolted to the rear. This configuration makes the motors 33% shorter in size than different chain drive motors, with solely a one-centimeter improve in width. Decreasing the motor’s area declare simplifies set up and frees OEMs to extend the dimensions of the chains driving the wheels, which might improve the lifetime of the machine.
The elevated area created by the bigger rotary group allows a return to confirmed multidisc brake expertise, which affords robust parking torque in addition to clean emergency stopping. In contrast to canine clutch brakes, which produce harsh emergency stops and put on out extraordinarily shortly — typically in as few as one or two stops — the Thorx motor’s brake is designed to face up to no less than 100 dynamic emergency stops.
One other benefit of the motor’s bigger rotary group is decreased friction and stream losses, which will increase the beginning effectivity in addition to high-speed effectivity by 5%. Operators can obtain quicker journey speeds or use much less energy on the similar pace whereas losing much less vitality within the type of warmth.
Danfoss Thorx motors have reinvented cam lobe expertise, eliminating shortcomings whereas sustaining the expertise’s robust factors. All motor applied sciences have their place, and with its full motor portfolio, Danfoss has the fitting expertise for the appliance, making certain an ideal match.
Pictures: Danfoss Energy OptionsÂ
