The invention describes a system for locking and releasing a wheel (1) to and from a wheel support (2). The system comprises an interlocking mechanism (3) comprising a guiding slot (4) on the wheel support (2), and a guided structure (5), positioned on a stationary wheel section (6) of the wheel (1), mating with the guiding slot (4). The system further comprise a U-shaped locking tool (7) comprising two lever arms (8a, b) joined by a gripping bridge (9) at one end, and having an arm pivot structure (10) interacting with a wheel pivot structure (11) positioned on the stationary wheel section (6). The locking tool further comprises a pushing arm (13) interacting with a support slot (16) in the wheel support (2) for pushing the guided structure (5) into the guiding slot (4) when mounting the wheel, and for pushing the guided structure (5) a first distance (D1) out of the guiding slot (4) when releasing the wheel.

According to an aspect of the present disclosure, a locking turnplate includes a cylinder body having a cylinder chamber. A piston is received in the cylinder chamber and a mid-plate is disposed above the cylinder chamber of the cylinder body. A top plate is supported above the mid-plate by a bearing assembly including a plurality of spaced ball bearings. A bushing is fixedly attached to the top plate and extends through an aperture in the mid-plate. The bushing includes a flange that engages a bottom shoulder of an aperture of the cylinder body, wherein applying a pressure to the cylinder chamber presses the piston toward the mid plate and causes the cylinder body to pull downward on the bushing and the top plate in order to compress the ball bearings and prevent the top plate from moving relative to the mid plate.