CN2111358U

CN2111358U - Electric (pneumatic) lift sub for oil well construction

Info

Publication number: CN2111358U
Application number: CN 91229690
Authority: CN
Inventors: 董芒德
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-12-03
Filing date: 1991-12-03
Publication date: 1992-07-29

Abstract

The utility model discloses an electric (pneumatic) lift sub for petroleum welldrilling. An electric (pneumatic) mechanism of the utility model is composed of a transmission pair fixed to the axle neck of the top end of a large hook of a driller and an autolocking transmission pair fixed to a manual open loop type lift sub body which is universally used at site. Electric (pneumatic) motors are respectively installed on a casing of the large hook and a suspension ring on one side; motive power for automatically opening and closing a trap door and for rotary motion is supplied to the lift sub by a belt through a flexible shaft. The utility model has the advantages of automatic remote operation and no need of manual operation.

Description

Electric (pneumatic) lift sub for oil well construction

The utility model is the working electricity (gas) of slinging, put down drilling rod, sleeve pipe of a kind of oil drilling tool of starting building.

The elevator that each oil drilling team of existing China generally uses is that the high-altitude is manually operated in the open by driller, and physical demands is big, impairs healthy.

The purpose of utility model: provide a kind of manpower high-altitude application that do not need, by the remote-controlled automatic elevator of electricity (gas) braking.

The utility model is achieved in that installs electricity (gas) arrestment mechanism on the manual elevator of open loop type that drilling crew generally uses at present, make it have automatic elevator multi-functional, remote control.

Below in conjunction with Figure of description and the detailed example of enforcement, concrete structure, motion principle and the assembly method that the utility model proposes are described.

Fig. 1 is the structural principle schematic diagram, and Fig. 2 is installation site figure.Referring to Fig. 1:

Screw rod (2) has left-handed or two sections screw threads of dextrorotation, pays and is loaded on housing (1) with two worm gears (3), the transmission of (12) formation respectively, and they are fixed on elevator body (6) upper surface one side with bolt (10);

Short driving lever (4) and long driving lever (11) are installed on the square spindle nose of worm gear; One end of driving lever (4) connecting rod (5) that has been twisted together, the other end of connecting rod are twisted together and are welded in push rod (7) on the elevator valve (9);

When worm screw (2) during by the motor driven rotary, transmission worm gear (3) and (12), long and short driving lever (11), (4) are made horizontal hunting simultaneously; During short driving lever (4) swing, push away (drawing) push rod (7) by connecting rod (5) and also do swing synchronously,, shut or open door, make the elevator open loop or receive ring, carry out lifting operation so the dodge gate of elevator is the center rotation with Xiao's axle (8).

When being with swing, its long end is released the drilling rod that is positioned at elevator body center, sleeve pipe in like manner long driving lever (11), makes with elevator and leaves by worm gear (12), and short end is tension or pull-off spring (13) then, and locking safety lock Xiao (14) is opened and closed.

Referring to Fig. 2: belt pulley (15) dress is solid on the upper end axle journal of rig hook (18), and it is paid with the transmission of belt pulley (16) formation; Belt pulley (15) rotation drove hook (18) and does 360 ° of rotations when the motor on being contained in the hook housing (17) rotated, turn round the center that drilling rod or sleeve pipe are taken in suspension ring facing to the direction of suspended object to valve thereby make the suspension ring (19) that are suspended on the hook both sides push away elevator.

The power of elevator valve motion is attached to worm-drive by flexible axle (21) and pays the axle journal of worm screw and provide by being fixed on electricity (gas) motor (20) on the suspension ring (19).

The manual open loop type elevator that the utility model is suitable for any specification repacks automatic elevator into, carries out long-distance remote control.Be power tongs, the indispensable kit of pipe racking mechanization, the hardship that can make driller exempt the work high above the ground in winter, its structure design have kept little, the simple and safe mechanical structure characteristics of manual open loop type elevator body.Therefore the utility model needn't carry out whole complicated mechanical test, and expensive during this test fee, program is numerous great.Promote the use of by the detection permission of security department easily.

Claims

1, the moving elevator of a kind of oil drilling power supply for construction (gas) is characterized by: utilize manual open loop type elevator body repacking, kept the mechanical structure characteristics of manual elevator; The automatic changeover of elevator, be installed in rig hook upper axis neck position make hook obtain spinfunction drive elevator look for to; Opening valve automatically, closing valve mechanism of elevator is contained in manual elevator body upper end one side.