CN201786245U

CN201786245U - Turntable and matched supporting pneumatic chuck thereof

Info

Publication number: CN201786245U
Application number: CN2009203188534U
Authority: CN
Inventors: 李钘钘; 万慧君; 任五妮; 徐晓庆; 邓杰; 鲍正强; 杨莹娜; 张宸
Original assignee: RG Petro Machinery Group Co Ltd
Current assignee: RG Petro Machinery Group Co Ltd
Priority date: 2009-12-29
Filing date: 2009-12-29
Publication date: 2011-04-06
Anticipated expiration: 2019-12-29

Abstract

The utility model relates to a turntable and a matched supporting pneumatic chuck thereof. Heating coils are respectively added in the lubricating oil pools of the box body of the turntable. A low-position water inlet joint and a high-position water outlet joint which are externally connected with a liquid heat source are installed on the wall of the box body of a cavity. Lubricating oil and the turntable can be heated and the turntable is ensured to work normally under a low-temperature environment. Since the pneumatic chuck is installed in a way of penetrating through the internal part of the turntable, the integral design with the turntable is realized, the operation of tapping and removing threads can be conveniently conducted, the design length of a slip insert seat can be increased, a long evenly-distributed annular pressure belt can be formed when a pipe column is clamped, the clamping reliability can be ensured, the damage and the deformation on the pipe column are minimized and the clamping capacity is improved.

Description

Rotating disk and supporting air spider thereof

Technical field

The utility model belongs to the oil drilling and extracting equipment technology, be specifically related to a kind of rotating disk that is matched in oil-well rig, workover rig and with the air spider of the supporting application of rotating disk.

Background technology

Rotating disk is one of oil-well rig, the important corollary equipment of workover rig, is used for support tubing string weight in drilling well and workover treatment, and moment of torsion and rotating speed are provided.In the prior art, conventional rotating disk suitable environment temperature is not less than-18 ℃, uses if be lower than under-18 ℃ the situation, and rotating disk will turn round bad or quit work.Reason has following two aspects: on the one hand, casing and other parts itself and casing assembly welding technique do not satisfy for a long time under low temperature condition performance requirements such as desired intensity; On the other hand, the lubricating oil in the casing is being lower than under-18 ℃ of environment temperatures and is using, and the lubricating efficiency of lubrication oil reduces so that can not lubricate, thus the rotating disk cisco unity malfunction.

Air spider is one of wellhead equipment with the supporting application of rotating disk, is that rig, workover rig rise in operation, during lower tubular column, holds the mechanical device of tubing string.Existing air spider is supporting by increasing transition adpting flange and rotating disk, make chuck seat on rotating disk, hold tubing string exposed portions serve height, be unfavorable for, unload the operation of tubing string screw thread, be subjected to the high restriction in installation site, the slips height is limited, causes the ability of holding low, maximum is no more than 200 tons, generally uses under less than 1500 meters at well depth.

Summary of the invention

The purpose of this utility model provides a kind of rotating disk and supporting air spider thereof, and rotating disk can be made air spider be convenient to, unload the operation of tubing string screw thread, and can improve the clamping ability in operate as normal under the low temperature environment.

For achieving the above object, the technical scheme taked of the utility model is:

A kind of rotating disk, comprise casing, turntable, base bearing, supplementary bearing, spiral bevel gear pair, power shaft assembly, main core, benefit core body, liner, the case lid mended, main benefit core, benefit core body, liner detachably are installed in the turntable, casing has two lubricated lubricating oil baths of the spiral bevel gear pair of being used separately as and power shaft upper bearing (metal) and around the die cavity of turntable, be respectively arranged with heat(ing) coil, heat(ing) coil steam-out (SO) or hot water in described two lubricating oil baths; The box body wall of described die cavity is provided with low level water supply connector and the high-order water out adapter that is used for external thermal source.

The matching used air spider of a kind of and above-mentioned rotating disk, comprise cylinder, shifting fork assembly, the roller assembly, the guide plate assembly, the hanger assembly, connecting plate, the slip insert seat, supporting positive cover, base, also comprise link, support, described link is made of level frame and riser, riser is fixedly connected on the wall box, support is installed on the level frame, the cylinder barrel end is hinged on the support, be hinged on the support in the middle of the shifting fork assembly, the main core of mending of described rotating disk, mend the long slot bore that is processed with 4 up/down perforations that are uniformly distributed along the circumference between the core body, the guide plate of described guide plate assembly is positioned at long slot bore also slidably, be processed with 4 corresponding grooves in outer cone rib position with the slip insert seat on the liner inner conical surface of described rotating disk, slip insert seat outer cone rib can insert on the liner inner conical surface and slide up and down in the groove.

The utility model increases heat(ing) coil in rotating disk casing lubricating oil bath, low level water supply connector and the high-order water out adapter that is used for external liquid thermal source is installed on the die cavity box body wall, by to charging into steam or hot water in the heat(ing) coil, to charging into hot water in the die cavity, can realize heating, guarantee the normal operation of rotating disk under low temperature environment lubricating oil and rotating disk.Air spider adopts the mounting means that runs through rotating disk inside, realized and the rotating disk integrated design, because being positioned at rotating disk when holding tubing string, the slip insert seat mends the in-core lining, holding tubing string, to expose the rotating disk end face lower, therefore can conveniently go up, unload the operation of tubing string screw thread, and this installation site can increase the Design of length of slip insert seat, form long annular pressure band that is evenly distributed when holding tubing string, can guarantee reliable grip, again damage and distortion to tubing string are reduced to bottom line, improved the clamping ability simultaneously, the specified load that holds can reach 300 tons.

Description of drawings

Fig. 1 is a rotating disk casing heating arrangement schematic diagram.

Fig. 2 is that A-A analyses and observe among Fig. 1.

Fig. 3 is air spider and and rotating disk mounting structure figure (unclamping the tubing string state).

Fig. 4 is air spider and and rotating disk mounting structure figure (pinch tube column attitude).

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As shown in Figure 3, rotating disk by casing 1, turntable, base bearing, supplementary bearing, spiral bevel gear pair, power shaft assembly 23, mainly mend core 21, mend core body 20, liner 19, case lid 24 constitute that (annotate: the rotating disk agent structure is a known technology, for making drawing clear, Fig. 3 has only made broken section, the structure of turntable, base bearing, supplementary bearing, spiral bevel gear pair, power shaft assembly 23 is expressed), main benefit core 21, benefit core body 20, liner 19 are connected with bolt with turntable.

Fig. 1, shown in Figure 2 be casing 1 structural representation of Fig. 3 turntable, casing 1 has the spiral bevel gear pair of being used separately as and power shaft upper bearing (metal) lubricated two lubricating oil bath 1b, 1c and around the die cavity 1a of rig floor, be respectively arranged with heat(ing) coil 4,5 in two lubricating oil bath 1b, the 1c, heat(ing) coil 4,5 steam-out (SO)s or liquid thermal source, can form heating circulation system, lubrication oil is heated.The box bilateral wall of die cavity 1a is provided with a pair of low level water supply connector 2a, 2b and a pair of high-order water out adapter 3a (another high-order water out adapter is not illustrated) that is used for external liquid thermal source, behind external thermal water source, hot water circuit by low in and high out heats rotating disk integral body, guarantees the reliable and stable operation of rotating disk.

As Fig. 3, shown in Figure 4, comprise cylinder 8 with the matching used air spider of above-mentioned rotating disk, shifting fork assembly 10, roller assembly 12, the guide plate assembly, hanger assembly 16, connecting plate 17, slip insert seat 18, supporting positive cover 22, base 13, also comprise link, support 7, link is made of level frame 6a and riser 6b, riser 6b is fixedly connected on casing 1 sidewall, support 7 is installed on the level frame 6a, cylinder 8 cylinder barrel ends are hinged on the support 7 with bearing pin 9, be hinged on the support 7 with bearing pin 11 in the middle of the shifting fork assembly 10, shifting fork assembly 10 1 ends and cylinder 8 piston rods are hinged, and the other end is equipped with roller assembly 12.The top of the guide plate 14 of guide plate assembly is connected with hanger assembly 16, and hanger assembly 16 is connected with connecting plate 17 1 ends, and connecting plate 17 other ends are connected with slip insert seat 18.Rotating disk main mended core 21, mended the rectangle elongated slot that is processed with 4 up/down perforations that are uniformly distributed along the circumference between the core body 20, and the guide plate 14 of guide plate assembly is positioned at the rectangle elongated slot and also can slides up and down, and is connected with bearing pin 15 on guide plate 14 bottoms of guide plate assembly and the base 13.Cannelure is arranged at base 13 bottoms, and roller assembly 12 is positioned at cannelure.Be processed with 4 corresponding groove 19a in outer cone rib 18a position with slip insert seat 18 on liner 19 inner conical surfaces of rotating disk, the outer cone rib 18a of slip insert seat 18 can insert on liner 19 inner conical surfaces and slide up and down in the groove 19a, and groove 19a plays the effect that guiding slip insert seat 18 enters in the liner 19 smoothly.Two relative slip insert seat 18 taperings are 1:3, and it just in time embeds in the liner 1:3 tapering groove.Above-mentioned air spider agent structure adopts known technology.

During work, control cylinder 8 actions drive shifting fork assembly 10 and rotate along bearing pin 11, and the roller assembly 12 that inserts in the base 13 moves up and down, and the guide plate assembly is moved up and down, and when moving up, slip insert seat 18 rises, and unclamps tubing string; When moving down, slip insert seat 18 descends, and clamps tubing string.The effect of supporting positive cover 22 is to make tubing string centering, the unlikely slip insert seat 18 that breaks.

Claims

1. rotating disk, comprise casing (1), turntable, base bearing, supplementary bearing, spiral bevel gear pair, power shaft assembly (23), the main core (21) of mending, mend core body (20), liner (19), case lid (24), the main core (21) of mending, mend core body (20), liner (19) detachably is installed in the turntable, casing (1) has the spiral bevel gear pair of being used separately as and two lubricated lubricating oil bath (1b of power shaft upper bearing (metal), 1c) and around the die cavity (1a) of rig floor, it is characterized in that: described two lubricating oil bath (1b, be respectively arranged with heat(ing) coil (4 1c), 5), heat(ing) coil (4,5) steam-out (SO) or liquid thermal source; The box body wall of described die cavity (1a) is provided with low level water supply connector (2a) and the high-order water out adapter (3a) that is used for external liquid thermal source.

One kind with the matching used air spider of the described rotating disk of claim 1, comprise cylinder (8), shifting fork assembly (10), roller assembly (12), the guide plate assembly, hanger assembly (16), connecting plate (17), slip insert seat (18), supporting positive cover (22), base (13), it is characterized in that: also comprise link, support (7), described link is made of level frame (6a) and riser (6b), riser (6b) is fixedly connected on casing (1) sidewall, support (7) is installed on the level frame (6a), cylinder (8) cylinder barrel end is hinged on the support (7), be hinged on the support (7) in the middle of the shifting fork assembly (10), the main core (21) of mending of described rotating disk, mend the long slot bore that is processed with 4 up/down perforations that are uniformly distributed along the circumference between the core body (20), the guide plate of described guide plate assembly (14) is positioned at long slot bore also slidably, be processed with 4 grooves (19a) corresponding with outer cone rib (18a) position of slip insert seat (18) on the liner of described rotating disk (19) inner conical surface, slip insert seat outer cone rib (18a) can insert on liner (19) inner conical surface and slide up and down in the groove (19a).