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.

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.

A safety link for an elevator car traveling in an elevator hoistway includes a hitch bracket slidably mounted to the elevator car frame so as to be movable in the moving directions of the elevator car and biased toward the downward movement direction of the elevator car in normal operating condition, the hitch bracket connected to the governor rope, and a pulley rotatably mounted to the hitch bracket and including an actuation wire wrapped around the pulley and connected to a safety device.

An overspeed emergency brake system includes an overspeed detector magnet generating a brake actuation force and a kinematic constraint element guiding the movement of the magnet. The magnet and a kinematic constraint element in the brake system are arranged such that a linear brake actuation force is generated at a normal operating speed condition (i.e in a first position of the magnet with respect to the kinematic constraint element), due to the movement of the kinematic constraint element when guiding the magnet along a reaction surface and the kinematic constraint element converts the linear speed-force relationship into a nonlinear speed-force relationship in an overspeed condition (i.e a second position), while the magnet translates with respect to the kinematic constraint element generating a sharply increasing force for triggering the overspeed emergency brake.

An overspeed emergency brake system includes an overspeed detector magnet generating a brake actuation force and a kinematic constraint element guiding the movement of the magnet. The magnet and a kinematic constraint element in the brake system are arranged such that a linear brake actuation force is generated at a normal operating speed condition (i.e in a first position of the magnet with respect to the kinematic constraint element), due to the movement of the kinematic constraint element when guiding the magnet along a reaction surface and the kinematic constraint element converts the linear speed-force relationship into a nonlinear speed-force relationship in an overspeed condition (i.e a second position), while the magnet translates with respect to the kinematic constraint element generating a sharply increasing force for triggering the overspeed emergency brake.

A governor assembly and an elevator system. The governor assembly includes: a stationary shaft; a sheave arranged on the stationary shaft and rotatable on the stationary shaft; a core ring arranged on one side of the sheave on the stationary shaft and associated with a safety apparatus; and a lock mechanism including a plurality of rockers, wherein each rocker includes a first end pivotably connected to the sheave and a second end connected to a respective roller, the plurality of rockers are connected by connecting rods such that the plurality of rockers can be pivoted synchronously between a first position where the respective roller is separated from the core ring and a second position where the respective roller is jointed to the core ring, and in the second position, each roller rotates along with the sheave to drive the core ring, thus triggering the mounting apparatus.

Arrangement in an elevator for stopping uncontrolled movement of an elevator car, which elevator comprises at least an elevator car (1) arranged to move reciprocally in the elevator hoistway along guide rails (1a), and means for stopping uncontrolled movement of the elevator car (1). The arrangement according to the invention comprises an arrester (4, 5) separate from the guide rails (1a) of the elevator car (1) and independent of the suspension of the elevator car (1).

Arrangement in an elevator for stopping uncontrolled movement of an elevator car, which elevator comprises at least an elevator car (1) arranged to move reciprocally in the elevator hoistway along guide rails (1a), and means for stopping uncontrolled movement of the elevator car (1). The arrangement according to the invention comprises an arrester (4, 5) separate from the guide rails (1a) of the elevator car (1) and independent of the suspension of the elevator car (1).

A speed governing system, a releaser, an elevator speed governing system, and an elevator. The speed governing system comprises a speed governor for detecting an overspeed condition of a motion device, and a releaser connected to the speed governor. The releaser comprises: a housing; at least one positioning pin having a section that is disposed in the housing and at least partially constructed to have an arc-shaped outline; and a releasing component passing through the housing and provided with a groove on its portion located in the housing, wherein the groove is constructed to be adaptable to the arc-shaped outline, for accommodating the section to fix the releasing component relative to the housing, and be separated from the section when the speed governor detects the overspeed condition and moves the releasing component relative to the housing.

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.