The present application relates to the technical field of lifting equipment, and provides a traction machine and a lifting equipment. The traction machine includes traction pulleys, traction ropes driven by the traction pulleys and fixed pulleys for changing directions of the traction ropes. The fixed pulley is provided with a sensor sensing member rotating with the fixed pulley, a traction machine sensor is arranged beside the fixed pulley; the traction machine sensor is configured to detect a rotation speed of the sensor sensing member, and send the rotation speed to a controller of the traction machine; the controller controls a rotation of the traction pulley according to detected data of the traction machine sensor. Since this kind of traction machine is provided with the sensor sensing member and the traction machine sensor, it is capable of detecting whether the traction machine has an abnormal operation, and stopping the traction machine immediately in an abnormal state.

Elevator systems are described. The elevator systems include an elevator car movable along guide rails along an elevator shaft, the car having a platform, a ceiling, and car structural members, with car panels arranged to define a cab, and a car operating panel therein. An overspeed safety system includes first and second safety brakes and electromechanical actuators, with the brakes operable to engage with the guide rails to stop movement of the elevator car. A control system is operably connected to the electromechanical actuators and configured to trigger the electromechanical actuators due to at least a detected overspeed event. The control system is located on top of the ceiling, within the ceiling, beneath the platform, within the platform, behind a car panel, or within the car operating panel.

Elevator systems are described. The elevator systems include an elevator car movable along guide rails along an elevator shaft, the car having a platform, a ceiling, and car structural members, with car panels arranged to define a cab, and a car operating panel therein. An overspeed safety system includes first and second safety brakes and electromechanical actuators, with the brakes operable to engage with the guide rails to stop movement of the elevator car. A control system is operably connected to the electromechanical actuators and configured to trigger the electromechanical actuators due to at least a detected overspeed event. The control system is located on top of the ceiling, within the ceiling, beneath the platform, within the platform, behind a car panel, or within the car operating panel.

Elevator systems are described. The elevator systems include an elevator car movable along guide rails within an elevator shaft. The elevator car has a car frame with a platform, a ceiling, and car structural members. A distance between the platform and the ceiling is defined as a car height H.sub.C. An overspeed safety system is provided and includes first and second safety brakes and first and second electromechanical actuators positioned within the car structural members within the car height H.sub.C. The safety brakes are operable to engage with the guide rails to stop movement of the elevator car.

Elevator systems are described. The elevator systems include an elevator car movable along guide rails within an elevator shaft. The elevator car has a car frame with a platform, a ceiling, and car structural members. A distance between the platform and the ceiling is defined as a car height H.sub.C. An overspeed safety system is provided and includes first and second safety brakes and first and second electromechanical actuators positioned within the car structural members within the car height H.sub.C. The safety brakes are operable to engage with the guide rails to stop movement of the elevator car.

A governor assembly is provided including a sheave rotatably mounted on a shaft and a ratchet disc mounted on the shaft. Rotation of the ratchet disc is restricted. An overspeed assembly includes a swing jaw mounted to the sheave. The swing jaw is movable between a normal position and a tripped position. The swing jaw is biased into the tripped position. When the swing jaw is in the tripped position, rotation of the sheave in a first direction is restricted. A tripping lever is pivotally mounted to the sheave and is configured to cooperate with the swing jaw. Rotation of the sheave in a second, opposite direction is configured to automatically move the swing jaw against its bias to the normal position.

An overspeed assembly for use with a governor assembly for limiting of an elevator system, the overspeed assembly includes a rod movable relative to the governor assembly in response to a speed of an elevator car and a pin coupled to the rod. The pin is movable between a first position and a second position based on a direction of travel of the elevator car. The pin is configured to engage a first component to indicate a first overspeed condition when the elevator car is travelling in a first direction and the pin is configured to engage a second component to indicate a second overspeed condition when the elevator car is travelling in a second, opposite direction.

A transportation device such as an elevator installation, an escalator, or a moving walkway may comprise a person conveying unit and an electromagnetic linear drive for driving the person conveying unit. The electromagnetic linear drive may include a stator segment and a runner element. The runner element can be driven by the force of an electromagnetic field of the stator segment in a first drive direction or in an opposite second drive direction. The runner element is movably mounted on the person conveying unit such that a magnetic resistance in an air gap between the stator segment and the runner element is adjustable depending on a drive force acting between the stator segment and the runner element.

In an elevator apparatus, an abnormal acceleration detecting mechanism detects abnormal acceleration of an ascending/descending body due to breakage of a suspending body, and activates a safety device. The abnormal acceleration detecting mechanism includes: an inertia sheave that is rotatable around a sheave shaft independently from an interlocking sheave; a pawl that is connected to the interlocking sheave and the inertia sheave, and that is displaceable between a normal position, and an activating position that displaces a movable shoe to a gripping position; and an elastic body that holds the pawl in the normal position by applying an initial pressure, and that also rotates the inertia sheave together with the interlocking sheave.

An illustrative example elevator governor includes at least one flyweight configured to move a first distance between an initial position corresponding to a zero speed condition and an activation position corresponding to an elevator speed that reaches a predefined threshold. A biasing member biases the at least one flyweight toward the initial position. The biasing member is configured to allow the at least one flyweight to reach the activation position when the elevator speed reaches the predefined threshold. A flyweight position member sets a rest position of the at least one flyweight in the zero speed condition that is between the initial position and the activation position. A range of motion of the at least one flyweight is limited to a second, shorter distance between the rest position and the activation position.