A laser positioning system is used in association with a crane within a manufacturing facility. The laser positioning system includes a laser source that is mounted on an immovable or non-moving wall or surface in the manufacturing facility. The laser source on the wall or surface ensures that the laser beam does not skew out of square relative to the movement of the crane to various locations in the facility.

A laser positioning system is used in association with a crane within a manufacturing facility. The laser positioning system includes a laser source that is mounted on an immovable or non-moving wall or surface in the manufacturing facility. The laser source on the wall or surface ensures that the laser beam does not skew out of square relative to the movement of the crane to various locations in the facility.

A bidirectional anti-slipping apparatus includes a vehicle following stabilizing mechanism, a track, and two front and rear sets of locking mechanisms with opposite directions. The vehicle following stabilizing mechanism includes a protective shell, a middle vehicle capable of sliding and a hydraulic cylinder configured to control the middle vehicle to slide are arranged in the protective shell, a front vehicle and a rear vehicle are respectively fixed at two front and rear ends of the protective shell. Each locking mechanism includes two left and right groups of ratchet devices, each of the ratchet devices includes a fixing rod, a plurality of inner ratchet wheels capable of rotating unidirectionally are respectively fixed at two ends of the fixing rod on one side of the fixing rod proximate to the track, the inner ratchet wheels on the two front and rear sets of locking mechanisms rotate in opposite directions.

A bidirectional anti-slipping apparatus includes a vehicle following stabilizing mechanism, a track, and two front and rear sets of locking mechanisms with opposite directions. The vehicle following stabilizing mechanism includes a protective shell, a middle vehicle capable of sliding and a hydraulic cylinder configured to control the middle vehicle to slide are arranged in the protective shell, a front vehicle and a rear vehicle are respectively fixed at two front and rear ends of the protective shell. Each locking mechanism includes two left and right groups of ratchet devices, each of the ratchet devices includes a fixing rod, a plurality of inner ratchet wheels capable of rotating unidirectionally are respectively fixed at two ends of the fixing rod on one side of the fixing rod proximate to the track, the inner ratchet wheels on the two front and rear sets of locking mechanisms rotate in opposite directions.

The present application discloses a material handling system and a monitoring system and a monitoring method for particles in a traveling area of overhead hoist transfers, wherein the monitoring system for particles in the overhead hoist transfer traveling area comprises gas sampling modules, a particle counter and a monitoring device. The gas sampling module is configured to obtain the gas to be tested around traveling wheels of each overhead hoist transfer (OHT). The particle counter is configured to test the gas to be tested for the size and number of particles in the gas to be tested. The monitoring device is electrically connected to the particle counter, and is configured to acquire the size and number of the particles tested and alarm when determining that the content of particles does not meet a preset standard.

A bridge crane arrangement includes at least one main girder having a central web and a bottom flange; end girders supporting opposite ends of the main girder; a slide arranged between an end girder and the main girder, the slide allowing the movement of the end girder in relation to the main girder in at least its longitudinal direction and the rotation of the end girder and main girder in relation to each other; and a restrictor to restrict the movements between the end girder and the main girder. On the top surface of the end girder, there is arranged a support platform wider than the bottom flange, the slide includes a slide surface arranged on the top surface of the support platform and/or the bottom surface of the bottom flange, and the restrictor is arranged to the support platform on both sides of the bottom flange.

A walking device with a self-adaptive track gauge and wheel pressure for preventing rail gnawing comprises a first rail, a second rail parallel to the first rail, a driving trolley disposed on the first rail, a driven trolley disposed on the second rail, two beams connected between the driving trolley and the driven trolley and each of which having a sliding groove, and an electric hoist disposed on the two beams. The driving trolley is hung on the first rail through a first bearing wheel, and the driven trolley is hung on the second rail through a second bearing wheel. The driving trolley is connected with a driving motor, and the driving trolley is configured to drive the driven trolley to synchronously move along length directions of the first rail and the second rail through the two beams, so that the electric hoist is driven to synchronously move.

A walking device with a self-adaptive track gauge and wheel pressure for preventing rail gnawing comprises a first rail, a second rail parallel to the first rail, a driving trolley disposed on the first rail, a driven trolley disposed on the second rail, two beams connected between the driving trolley and the driven trolley and each of which having a sliding groove, and an electric hoist disposed on the two beams. The driving trolley is hung on the first rail through a first bearing wheel, and the driven trolley is hung on the second rail through a second bearing wheel. The driving trolley is connected with a driving motor, and the driving trolley is configured to drive the driven trolley to synchronously move along length directions of the first rail and the second rail through the two beams, so that the electric hoist is driven to synchronously move.

The invention provides a crane assembly for lifting a load comprising: a pair of guides (2) positioned parallel to one another; a carriage (4,40) associated with each guide (2) and movable along each guide (2); a bridge (1) having an attachment point (8) for attaching the load, the bridge (1) being attached between the carriages (4,40) through connector arms (3), each connector arm (3) being attached through a lower end (31) to the bridge (1) and pivotable (5) at least about an axis perpendicular to the bridge, each connector arm (3) being attached at an upper end (32) to the corresponding carriage (4,40) through a multi-axis joint (33,35); wherein each multiaxis joint (33,35) is connected to the corresponding carriage (4,40) through a low friction thrust bearing (6) configured to rotate with initial movement of the corresponding carriage (4,40).

The invention provides a crane assembly for lifting a load comprising: a pair of guides (2) positioned parallel to one another; a carriage (4,40) associated with each guide (2) and movable along each guide (2); a bridge (1) having an attachment point (8) for attaching the load, the bridge (1) being attached between the carriages (4,40) through connector arms (3), each connector arm (3) being attached through a lower end (31) to the bridge (1) and pivotable (5) at least about an axis perpendicular to the bridge, each connector arm (3) being attached at an upper end (32) to the corresponding carriage (4,40) through a multi-axis joint (33,35); wherein each multiaxis joint (33,35) is connected to the corresponding carriage (4,40) through a low friction thrust bearing (6) configured to rotate with initial movement of the corresponding carriage (4,40).