Carousel (Merry-Go-Round) Product

Overview

The carousel is the oldest amusement ride still in production, and mechanically it is a vertical-axis crane that never stops slewing. A fixed Centre Pole on a levelled Base Frame carries a large Slewing Bearing at its head; everything that turns — the radial Sweep Set, the suspended Rotating Platform, the Horse & Hanger Row mounts, and the Decorative Package crown — hangs from that single bearing. An electric Drive Motor Unit turns the machine at a stately 4-5 rpm, which still gives the outer-row rider about 2.5 m/s of travel and a noticeable outward lean. The signature galloping motion of the horses costs no motor power of its own: it is geared directly off the ride's rotation.

Structure

The rotating frame works like a circle of crane jibs. Each Sweep Beam cantilevers from the pole head out past the platform edge, trussed by diagonal Hanger Rod tension rods from the pole top, and the sweep tips are tied together by a Compression Ring so the whole wheel rotates as one stiff structure. The deck does not roll on the ground: each wedge-shaped Deck Segment hangs from two adjacent sweeps, so the platform floats a hand's width above grade and the machine needs no circular rail. This suspended construction is what makes travelling carousels practical — the entire ride breaks down onto trucks and re-erects on jacks in a day, with the Base Frame taking out the ground slope.

Drive

Power enters at the bottom and the periphery never sees it. The drive unit — an AC motor of 5-15 kW with a Drive Belt primary and Helical Gear Pair final reduction in a Gearbox Housing — turns a pinion engaged with the Bull Gear, a large ring gear fixed under the rotating head. A Soft Starter ramps the torque so the loaded ride (several tonnes of structure plus riders) accelerates to speed over five to ten seconds; the same ramp in reverse, plus friction, brings it to rest. Electrical power for everything on the rotating structure passes through the Slip Ring stack at the pole head, the same rotary-joint solution used in cranes and radar mounts.

The galloping mechanism

The rise and fall of the horses is the carousel's one piece of genuine kinematic cleverness. At the pole head sits a Stationary Ring Gear — a gear ring that does not rotate. Under each sweep runs a horizontal Crankshaft in Crank Bearing hangers, with a Crank Pinion on its inner end engaged with that fixed ring. As the ride turns, each pinion is forced to roll around the stationary gear, spinning its crankshaft several times per ride revolution. The crank throws are offset along the shaft, and each throw carries the top of a Horse Pole; as the crank turns, the pole — guided at the bottom by a bushed Pole Guide in the platform — rises and falls through a stroke of about 20 cm. Horses on the same row are phased by the crank offsets so they gallop alternately rather than in unison. No second motor, no cams, no electronics: the gallop is a gear ratio.

Horses, decor, lights, and music

Traditional Horse Figure mounts were carved basswood, built hollow in glued sections, with the ornate "romance side" facing outward; modern production figures are moulded fibreglass copies, often cast from carvings by the classic makers. Each carries a Stirrup Set and rides a twisted-brass-sleeved pole. Riders who skip the horses sit in a fixed Chariot Bench bench. The decorative package is as standardized as the machinery: painted Rounding Board panels around the crown, Cresting above them, mirrored Centre Panel screens hiding the pole and slip rings, and a tented Canopy.

Light and sound are part of the original design language. Several hundred to a thousand Cabochon Light lamps — domed "turbo" lights, now LED — stud the boards and sweeps, sequenced into chase patterns by the Light Controller and fed from low-voltage Power Supply units through the slip ring. Music historically came from a pneumatic Band Organ reading punched rolls or books; most modern machines play recorded organ music through distributed Speaker units, though showpiece carousels still operate the real instrument.

Operation

The operator runs the ride from a Control Pedestal with a cycle timer; a typical ride lasts three to four minutes. Latching E-Stop Button buttons cut drive power through the control Relay chain. EN 13814 and ASTM F2291 govern design and inspection; the recurring maintenance items are the slew bearing, the crank bearings and their Oil Seal glands, brush wear in the slip ring, and the pole-guide bushings that take the gallop's sliding wear.