Пневматический/Воздушный Спиннинг/динамометрический ключ API 7K Q250, буровой инструмент для бурения скважин из углеродистой стали (62105121699)

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Product Overview


Product Description

Q250  Drill Pipe Pneumatic/air Spinning/torque Wrench

Q250 Pneumatic Spinning Wrench is a pneumatically power tool capable of spinning drill pipe and collar from 31/2 to 10 inches O.D., especially used in the mechanized operation of drilling machines in shore and land oilfields instead of previous “chain” and “cord”. It’s operated more safety and with less labor power, and more efficiency. It’s more convenience to fetch core and deal with the problem underwell.

The wrench’s spinning procedure is as follows: first position the wrench vertically to a joint about 11.8-19.7 inch, or just about the upset, the wrench is now swung onto pipe and it’s four drive rollers on the head clamp the pipe. Turn on air valve of air spring, to make rollers upon drill pipe, then push/pull the handle of air motors valve. Left and right motors work, and drive rollers rotate through its reducer mechanism. Drill pipe rotates for its friction. So drill pipe joint will be spinned in or out.



Section II  Specifications

2.1 Pneumatic System

Working pressure           75-130 psi

Oil motor   rated power     8 hp(per set) ×2

           rated rpm       2800 r/min

           air consumption  8.8 ft3/s

2.2 Applicable range:         27/8 to 10 in.O.D. for Drill pipes and collars

                           (Dia 88.9-254mm)

2.3 Spinning speed:          0-120 rpm

2.4 Stall torque:             1106 ft.lbf (5in. O.D. pipe)

2.5 Overall size:             49.2×22.4×18.3 in

2.6 Weight:                 968 lb


Section III  Main Structure and Work Principle

Q250 pneumatic spinning wrench consists of air motors, reducer mechanism, open adjusting mechanism, clamp mechanism and air control system.

1. Reducer mechanism (see Fig. 2)

As speed of air motor is very high, about 2800rpm, the work speed of the wrench is quite low, about 70rpm. So, gear chain is necessary for it, the gear ration is about 40.

2. Open adjusting mechanism (see Fig. 3)

Open adjusting mechanism comprises right and left pivot blocks (1), (14), shaft sleeve (9), supporting sleeve (16), push washer (5), sliding block (4), hanger shaft (11), fork, copper sleeve (15) and adjusting screw (10). Hanger shaft combines two cases into one through fork and right and left slide blocks and bears the whole weight of the wrench.

For adjusting wrench opening, draw ball handle (13), adjustment handle (12), and adjustment rod (2) from adjustment screw rod hole. Bend adjusting handle and adjustment rod to 90°angle, and turn adjusting screw rod and make it rotate along the screw rod. As the adjusting screw rod rotates, two pivot slide blocks will move along screw rod horizontally. The moving of pivot slide blocks will drive two cases come closely towards center or separate away along hanger shaft, thus vary the size of opening.

3. Clamp mechanism (see the following drawing)

The clamp force, which drives rollers of the wrench stress on drill pipe, is realized by action of tails of right and left cases motivated by aired air tyre.               Drill pipe

Air tyres are set at the tails of left and right cases. Left and right end covers connect with cases through connecting sleeve. Inside the air tyres there are connecting rods formed as hinges to join end covers. When air tyres are aired to expand, hinges will stretch, and then wrench trail will open. Through the bearing point of pivot slide blocks, the wrench will clamp drill pipe. If air is stopped, inner compressed air will drain out through release valve. Due to the shrinkage of tension spring, angle of hinges will dwindle and lead to contract of wrench tail. Thus the wrench will loosen its clamping against drill pipe between drive rollers.

                     a.Drive roller    b.Air motor

                            c.Air tyres      d.Adjusting screw

4. Air control system (see Fig. 4)

Compressed air goes through filter (3), lubricator (4) and elbow. One way of the air will enter air tyre (7) through two-position three-port valve (Q23R5-1) (5) and quick release valve. Handle two-position three-port valve to make air of tyres in or out, accordingly, to motivate the open and draw of wrench tail. The other way of air enters double-way air motors (right and left) (10) through three-position four-port hand air valve. Control the air valve the two air motors will run simultaneously. Shift the position of handle of air valve to change the direction of air motor. Force passes through reducing device and motivates drive rollers to rotate at positive or reverse direction to finish making-up or breaking-out.



Section IV  Installation and Debugging

1. Installation (see Fig. 5)

1.1 Select a position to fix a 1/2 or 5/8 inch cable (114.8-131.2 ft long) to the mast that will allow a free easy swing around wellbore. The position is 31.5inch from the derrick center (opposite to the drilling worker). Moving of the wrench will be easier if the fixed position is higher from the floor.   

1.2 Suspend the wrench approximately 59 inch above the floor (11.8-19.7 inch above the drill pipe joint).  

1.3 Attach two back-up cables to the shackles provided at the rear of the wrench to restrict rotational movement in either direction. The back-up cables can not be too long.

1.4 You may use electric or air winch to hoist the wrench.

1.5 Connecting air line.

The wrench requires approximately 8.8ft3/s air flow. For installing, use as few pipe fittings as possible and route the air line directly from excessive air pressure, keeping distance as short as possible.

 General air line is a 11/4 inch line of 393.7 inch long. One end is attached to the joint beneath the wrench, and the other end is fixed with subassembly of lubricator and filter. Run an 11/4 inch air hose from the main air supply line on the rig floor. The hose is connected with filter through a shut-off valve to allow maintenance of the tool.

Blow out air line to remove any trapped moisture and dirties.

2. Debugging

2.1 Use screw bolt of hanger shaft to adjust leveling of the wrench.

2.2 Adjust opening.

Draw the adjustment handle out from the adjustment screw rod to make the handle 90°against the adjustment rod. Turn the adjustment handle to adjust opening size of wrench. When adjusting, put the wrench on the drill floor, turn counterclockwise to make the wrench head open, and turn clockwise to close the distance between the wrench bodies. Opening size should conform to drill string size. It is appropriate to make the drill string just go through two rollers of wrench head. If finished draw the adjustment handle back into adjustment screw.

2.3 Turn on the stop valve of main ail-in pipe line to put air line through. Handle air valve to see if the wrench can run freely and reliable. Check if there is leaking of air line system. If any, stop the wrench to repair.


Section V  Operation

1.Adjust the opening size of the wrench to the appropriate pipe size.

2.Turn on the 11/2 stop valve from drill rig to spinning wrench to check if Back-up Line is properly attached.

3. Swing the wrench onto the pipe about 11.8-19.7 inch above the tool joint. Do not run the wrench on the pipe upset or tool joint.

A. Make up

1. Put the pin of drill pipe as vertical as possible to enter the box. If the pin and box fail to align, you can’t use the wrench to work. For drill collar, do not make the whole weight upon the box to cause sliding of the wrench.

2. Push the two-position three-port valve to clamp on the drill string. Shift the B type suspension tong to wellhead and make it embrace drill pipe joint.

3. Operate the ball valve of air motors to run air motors. The drive rollers will rotate and bring the rotating of drill string. Once the upsets of pin and box contact, shut off air valve to release air. Wrench head loosen the clamping against drill string.

4. Draw back the wrench from drill pipe. Use the B type suspension wrench to tighten joint. Only using the wrench to spin but giving up suspension tong to tighten the joint is forbidden, avoiding kickback of drill pipe/collar.

5. Withdraw the wrench to its original place.

B. Break out

In normal drilling, the wrench may not be needed for breaking out. Suspension tong and rotary table are needed to loosen joint and break out joint. But for core drilling and accident addressing, you may use the wrench to break out. When breaking out, operate inversely air valve of air motor, use B type suspension tong to loosen joint. Then repeat the above procedure for making-up.



Company Information

 Dongying Qixiang Import & Export Co.,LTD(DYQX Petro company) follow the principle of "quality first, science and technology innovated, people oriented",, it benefits from the convenient running, high efficiency, swift reaction, experienced experts and the advanced management. In a meanwhile, it has about 50 sub-contractors to cooperate all over the country, and it always sticks to good faith, strictness, specialty, innovation, also satisfactory service.our products have already been exported to USA, South America, Africa, Middle East, Russia and some other countries (regions). 


Our Service Objective:  People-O riented, Quality firstly and Best service.


Welcome to Visit DYQX petro.




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