Novel hydraulic elevator with opening-closing signal indication function

A signal indication and hydraulic technology, applied in drilling equipment, earthwork drilling, drill pipe, etc., can solve the problems of operator misoperation, complex working conditions, unable to immediately judge the working status of hydraulic elevators, etc., so as to reduce erroneous operation. Effect
CN110424905APending Publication Date: 2019-11-08江苏如东联丰石油机械有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
江苏如东联丰石油机械有限公司
Publication Date
2019-11-08

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Abstract

The invention discloses a novel hydraulic elevator with an opening-closing signal indication function. The novel hydraulic elevator comprises a left door body, a right door body, a hydraulic cylinderI and a hydraulic cylinder II; one end of the hydraulic cylinder I is connected with the right door body through a right connection rod and a first pull rod, and the other end of the hydraulic cylinder I is connected with the left door body through a left connection rod and a second pull rod; a plunger latch is connected between the left door body and the right door body and provided with a locking mechanism; and the end of a piston rod II of the hydraulic cylinder II is connected with the plunger latch through a pull head, a third pull rod and a fourth pull rod in sequence. The whole device is provided with three signal output parts, when a door body is opened, whether a door is completely opened or not can be determined, only when the door body is completely opened, a door opening hydraulic signal is emitted, and invalid operation that the elevator door is not completely opened is completely eradicated; and after the door is closed, a plunger latch closing signal and a plunger latchpin locking signal are emitted, double insurance is achieved, in addition, the signals are output in a hydraulic signal mode, an operator can be clear about the working state of the elevator, and themal-operation possibility is reduced.
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Description

technical field

[0001] The invention belongs to the technical field of petroleum drilling, and in particular relates to a novel hydraulic elevator with opening and closing signal indication. Background technique

[0002] In the process of oil drilling, the elevator is usually used to lift the drill pipe or casing, and the elevator is remotely controlled through the driller's room. Therefore, the staff cannot immediately judge the working status of the hydraulic elevator. Once the operator makes a mistake, it will lead to an accident. happened.

[0003] At present, in order to realize the signal indication of closing the door, there are also hydraulic elevators that add a proximity switch at the latch position, and then connect it to the driller's room through electric wires. Although this has realized the function of signal indication, it has the following disadvantages: 1. The switch needs electricity, which cannot achieve the real explosion-proof effect, which increases t...

Claims

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