A lifting apparatus for lifting a tank car is provided. The lifting apparatus can include a first arm to surround and not contact a tank car jacket and a second arm to surround and not contact the tank car jacket.

A gantry crane for a container includes a portal main frame, a traveling mechanism, a translation mechanism, a hoisting mechanism and a spreader assembly. The spreader assembly includes a spreader body, two telescopic girders and a drive assembly. The drive assembly includes a cam, a sliding way and two sliding blocks. Two arc-shaped first sliding grooves are circumferentially provided on the cam. A middle of the sliding way is rotatably connected with the cam. Two sides of connection of the sliding way and the cam on the sliding way are provided with a second sliding groove. Each sliding block matches with the first and second sliding grooves, and can slide back and forth along them. The telescopic beams are slidably connected to the spreader body, and are symmetrically provided and connected to the sliding blocks, respectively.

An example system includes an aerial vehicle, a sensor, and a winch system. The winch system includes a tether disposed on a spool, a motor operable to apply a torque to the tether, and a payload coupling apparatus coupled to the tether and configured to mechanically couple to a payload. The system also includes a repositioning apparatus configured to reposition the payload coupling apparatus in at least a horizontal direction. A control system is configured to control the aerial vehicle to deploy the payload coupling apparatus by unwinding the tether from the spool; receive, while the aerial vehicle hovers above the payload and from the sensor, data indicative of a position of the payload coupling apparatus in relation to the payload; and reposition, using the repositioning apparatus and based on the data, the payload coupling apparatus in the horizontal direction to mechanically couple to the payload.

A grabbing device having a plurality of jaws which can be moved between an open position and a closed position to enable the device to grasp an object(s). The technology finds particular application in the forestry industry and moving logs.

A multifunctional suspension device for mechanical engineering, relating to mechanical engineering equipment. The multifunctional suspension device includes a supporting base, wherein guide rods are symmetrically arranged on the left and right sides of the upper surface of the supporting base, the ends, away from the supporting base, of the guide rods are fixedly connected with a top plate, a first screw rod is arranged between the guide rods on the left and right sides, the upper and lower ends of the first screw rod are rotatably connected with the top plate and the supporting base, a first driving motor is arranged in the supporting base, second nuts drive arc-shaped clamps on the two sides to move inwards at the same time through push rods and clamping rods to clamp and fix a tubular part

A method for lifting a tank car is provided. The method can include positioning a lifting apparatus above a tank car, pulling at least one of the first arm and the second arm outward to place the lifting apparatus in an open configuration, lowering the lifting apparatus in the open configuration to surround a tank of the tank car, connecting the second end of the first arm to a first tank car support, connecting the second and of the second arm to a second tank car support, and raising the lifting apparatus to lift the tank car.

An example system includes an aerial vehicle, a sensor, and a winch system. The winch system includes a tether disposed on a spool, a motor operable to apply a torque to the tether, and a payload coupling apparatus coupled to the tether and configured to mechanically couple to a payload. The system also includes a repositioning apparatus configured to reposition the payload coupling apparatus in at least a horizontal direction. A control system is configured to control the aerial vehicle to deploy the payload coupling apparatus by unwinding the tether from the spool; receive, while the aerial vehicle hovers above the payload and from the sensor, data indicative of a position of the payload coupling apparatus in relation to the payload; and reposition, using the repositioning apparatus and based on the data, the payload coupling apparatus in the horizontal direction to mechanically couple to the payload.