House owners and operators more and more search for equipment that improves productiveness. Skid steer loaders are prime examples. To choose up heavier masses, full duties quicker, and enhance journey velocity, skid steers are being designed to ship increased energy and better pressure. In the meantime, extra consideration is being paid to operator consolation. Easy, predictable operation is not a need – it’s a requirement.
Excessive-pressure hydraulic pumps are delivering the facility 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 rankings and better effectivity than different applied sciences, delivering 30% extra pressure. Nonetheless, cam lobe motors have traditionally fallen quick in terms of two-speed shifting, bundle measurement, and effectivity all through the velocity vary.
Two-speed motors help the business drive for better productiveness, delivering increased torque when working and better velocity when roading. However an issue arises when shifting between the 2. A sudden change within the wheel velocity 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 necessary. Typical cam lobe motors have a big envelope, which may make meeting and repair a problem in compact machines.
Lastly, beginning effectivity and most velocity effectivity is usually 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 velocity makes the machine sizzling and wastes power 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 development equipment with chain drives, equivalent to skid steer loaders, at the moment are obtainable. Fashions for different drive sorts are coming quickly.
Danfoss Thorx motors characteristic newly developed two-speed know-how which reduces shock at velocity changeover by 70% and eliminates inconsistencies resulting from temperature, leading to smoother, extra predictable machine dealing with.
Thorx motors characteristic a bigger diameter rotary group that permits the parking brake to be built-in within the middle, relatively than bolted to the rear. This configuration makes the motors 33% shorter in size than different chain drive motors, with solely a one-centimeter enhance in width. Decreasing the motor’s house declare simplifies set up and frees OEMs to extend the dimensions of the chains driving the wheels, which may enhance the lifetime of the machine.
The elevated house created by the bigger rotary group permits a return to confirmed multidisc brake know-how, which provides sturdy parking torque in addition to easy emergency stopping. Not like 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 resist no less than 100 dynamic emergency stops.
One other benefit of the motor’s bigger rotary group is decreased friction and circulate 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 identical velocity whereas losing much less power within the type of warmth.
Danfoss Thorx motors have reinvented cam lobe know-how, eliminating shortcomings whereas sustaining the know-how’s sturdy factors. All motor applied sciences have their place, and with its full motor portfolio, Danfoss has the best know-how for the appliance, making certain an ideal match.
Photos: Danfoss Energy Options
