Patent ID: 11919748
Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A hoist for transferred materials in an underground auxiliary transportation system, comprising:
a hoist body, wherein four corners at two ends of the hoist body are respectively provided with twist locks inserted into lock holes at four top corners of a transferring trolley; and
a driving unit, arranged inside the hoist body, and drivingly connected with the four twist locks through a linkage mechanism, wherein the hoist further includes:
a twist lock closing sensor, configured to send a twist lock closing signal when the twist locks are closed;
a twist lock opening sensor, configured to send a twist lock opening signal when the twist locks are opened;
a pressure sensor, configured to detect an axial pressure received by each of the twist locks in real time and send a pressure signal;
ejector pins, arranged at end portions of the hoist body and located on one sides of the twist locks, wherein after the four twist locks on the hoist and the lock holes at the four top corners of the transferring trolley are in position with each other, the ejector pins are movable;
ejector pin position-limitation sensors, configured to detect movements of the ejector pins and send displacement signals;
a laser ranging sensor, arranged on the hoist body and configured to measure a distance between the hoist body and the transferring trolley; and
a photosensitive sensor, arranged on the transferring trolley and configured to receive a laser signal from the laser ranging sensor, wherein
the hoist body includes:
a cross beam; and
two end beams, symmetrically arranged at both ends of the cross beam along a longitudinal direction, wherein both ends of each of the end beams are provided with shaft holes, respectively, and one of the twist locks is mounted inside each of the shaft holes; wherein
the driving unit is assembled on a beam wall at a middle position inside the cross beam, and two telescopic driving shafts are symmetrically arranged on the driving unit with the driving unit as a center;
the linkage mechanism includes two groups respectively connected with the two telescopic driving shafts of the driving unit, and each group of the linkage mechanisms includes a pushing rod, a connecting rod, first sliding blocks and rotating levers, wherein one end of the pushing rod is connected with a respective one of the telescopic driving shafts through a coupling, and another end of the pushing rod is connected with the connecting rod arranged inside the end beam, sliding channels arranged along an axial direction of the connecting rod are respectively arranged at both ends of the connecting rod, the first sliding blocks are mounted inside the sliding channels, and the rotating levers are key connected with the first sliding blocks; and
an upper portion of each of the twist locks is connected with a twist lock shaft, and an upper end of the twist lock shaft is sequentially connected with shaft holes of the pressure sensor, a positioning sleeve and a respective one of the rotating levers to connect with a locking nut after the upper end of the twist lock shaft passes through a respective one of the shaft holes on the end beam and enters an interior of the end beam.