Elevating device with falling prevention function

Abstract

The invention discloses an elevating device with the falling prevention function. The elevating device comprises an elevator body (4) and a lifting ring (1) installed on the top of the elevator body (4). The elevating device further comprises a thrust ball bearing (3), a shroud ring (6) and a clamping groove (8), wherein the thrust ball bearing (3) is installed on the top of the elevator body (4), the elevator body (4) is sleeved with the shroud ring (6), the shroud ring (6) can slide up and down on the elevator body (4), a set bolt (5) is arranged on the top of the shroud ring (6), the clamping groove (8) is formed in the bottom of the elevator body (4), a groove (7) is formed in the top of the clamping groove (8), and a bayonet (9) matched with the set bolt (5) is formed in the top of the inner wall of the elevator body (4). Through the structure, the set bolt and the bayonet matched with the set bolt are arranged on the shroud ring, the elevating device is prevented from falling due to the gravity effect when used for hanging objects, the groove is formed in the top of the clamping groove, a faucet top hanger is located on the groove, an opening of the clamping groove is prevented from being abraded, the sliding risk is reduced, and the elevating device is safer and more reliable.

Description

technical field [0001] The invention relates to a lifting device for drill pipes, in particular to a lifting device for preventing falling off. Background technique [0002] In the field of petroleum processing, the lifter is an important tool in drilling equipment, and it is responsible for connecting and disconnecting drilling tools in the lifting and landing drilling tools. In order to realize unmanned operation on the tower, reduce the labor intensity of workers, and reduce the The safety accidents caused by the operation on the tower require convenient operation, safety and reliability. Although the tilt-off lifter has realized the automatic detachment from the drilling tool on the tower, which plays a great role in the unmanned operation on the tower, it is still an important task in the drilling industry to achieve convenience, practicality, safety and reliability, and to fully realize unmanned operation on the tower. One of the major problems still requires the unre...

AI Technical Summary

Problems solved by technology

Although the tilt-off lifter has realized the automatic detachment from the drilling tool on the tower, which plays a great role in the unmanned operation on the tower, it is still an important task in the drilling industry to achieve convenience, practicality, safety and reliability, and to fully realize unmanned operation on the tower. A major problem in the field still requires the unremitting efforts of scientific and technological personnel

Hang the faucet in the slot of the lifter, lift the active drill pipe to its place, and fork the lower joint of the active drill pipe with a fork, then loosen the wire rope, and the lifter will automatically detach from the top of the faucet under the action of its own weight. During this process, the lifter is easily detached under the action of gravity, which brings potential safety hazards

And if the lifter is not hung in place, it is easy to slip when hanging on the notch of the card. This is because the notch of the card is easy to wear and tear due to long-term use, and the opening is enlarged.

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