CN102720437B

CN102720437B - Protrusion self-positioning device for nested headframe

Info

Publication number: CN102720437B
Application number: CN201210210609.2A
Authority: CN
Inventors: 刘维国; 李全星; 沈军利; 荆强; 王玲; 杨鹏; 严岁娜
Original assignee: Baoji Oilfield Machinery Co Ltd
Current assignee: Baoji Oilfield Machinery Co Ltd
Priority date: 2012-06-26
Filing date: 2012-06-26
Publication date: 2014-04-16
Anticipated expiration: 2032-06-26
Also published as: CN102720437A

Abstract

The invention discloses a protrusion self-positioning device for a nested headframe, which comprises a headframe upper segment and a headframe lower segment, wherein the headframe upper segment is nested in an inner cavity of the headframe lower segment; a guide track is vertically and fixedly arranged on one side of the headframe upper segment, a floating cylinder clamp is fixedly arranged at the upper end of the guide track, an oil cylinder positioning seat is fixedly arranged on the headframe lower segment and positioned on the same side as the guide track, and telescopic oil cylinders are arranged in a floating cylinder clamp through hole and an oil cylinder positioning seat through hole in a sliding manner; first, second, third and fourth retaining rings are fixedly arranged from top down on the body of the telescopic oil cylinder; and a floating cylinder clamp is mounted between the first and the second retaining rings in a sliding manner, and the oil cylinder positioning seat is sleeved on the body of the telescopic oil cylinder between the third and the fourth retaining rings in a sliding manner. The protrusion self-positioning device has the benefits that: compared with the conventional operating modes, the protrusion position of the headframe upper segment is accurately fixed under the action of the telescopic oil cylinder retaining rings and the oil cylinder positioning seat on the headframe lower segment; the degree of automation is increased, the misoperation can be avoided, and the incidence of dangerous accidents is reduced.

Description

A kind of self locating device that stretches out that is set with derrick

Technical field

The invention belongs to oil equipment technical field, relate to a kind of self locating device that stretches out that is set with derrick.

Background technology

Suit derrick needs epimere to be lifted to assigned address from protruding upward in hypomere in use, to carrying bearing pin is installed.In the process of stretching out at existing suit derrick epimere, need operating personnel whether to reach assigned address with visually observing epimere, because operative employee visually observes many unfavorable factors such as difficulty apart from nearly 20 meters of bearing pin of carrying, subtense angle, be difficult to once stretch out put in place, inefficiency.

Summary of the invention

The object of this invention is to provide a kind of self locating device that stretches out that is set with derrick, solved prior art and need to rely on manual operation, operating accuracy is low, the problem wasting time and energy.

The technical solution adopted in the present invention is: a kind of self locating device that stretches out that is set with derrick, comprise derrick epimere and derrick hypomere, and derrick epimere is sleeved in derrick hypomere inner chamber; In derrick epimere one side, be vertically installed with guide rail, between the upper and lower side in guide rail, be slidably fitted with the cylinder folder that floats; On derrick hypomere same side, be installed with oil cylinder positioning seat, in float cylinder folder through hole and oil cylinder positioning seat through hole, be slidably fitted with telescopic oil cylinder simultaneously;

The cylinder body epimere of described telescopic oil cylinder is fixedly installed back-up ring one, back-up ring two from top to bottom, and the cylinder body stage casing of telescopic oil cylinder is provided with back-up ring three, and the cylinder body hypomere of telescopic oil cylinder is provided with back-up ring four; The cylinder folder slip cap that floats is contained in the cylinder body section of the telescopic oil cylinder between back-up ring one, back-up ring two, and oil cylinder positioning seat slip cap is contained in the cylinder body section of the telescopic oil cylinder between back-up ring three, back-up ring four.

Suit derrick of the present invention stretch out self locating device, be further characterized in that:

Described telescopic oil cylinder is two, is arranged on the same side of derrick hypomere, corresponding, float cylinder folder and oil cylinder positioning seat are two, in a upper and lower corresponding unsteady cylinder folder through hole and an oil cylinder positioning seat through hole, are slidably fitted with a telescopic oil cylinder simultaneously; Telescopic oil cylinder is provided with the upper end piston rod that can protrude upward and the lower end piston rod that can stretch out downwards, and the termination of upper end piston rod is fixedly connected with the upper end of derrick epimere, and the termination of lower end piston rod is fixedly connected with the hypomere front column of derrick hypomere.

The invention has the beneficial effects as follows, compared with routine work mode, utilize that oil cylinder positioning seat on telescopic oil cylinder back-up ring and hypomere is spacing makes the accurate positioning of derrick epimere extended position, automaticity is high, can avoid maloperation, reduces the incidence of peril.

Accompanying drawing explanation

Fig. 1 is that derrick epimere stretches out pre-structure schematic diagram;

Fig. 2 is that rear structural representation is stretched out in telescoping cylinder upper end;

Fig. 3 is the A-A sectional view in Fig. 1

Fig. 4 is the B-B sectional view in Fig. 2;

Fig. 5 is that rear structural representation is stretched out in telescoping cylinder lower end;

Fig. 6 is telescoping cylinder structure chart.

In figure, 1. derrick epimere; 2. telescopic oil cylinder; 3. cylinder folder floats; 4. derrick hypomere; 5. guide rail; 6. oil cylinder positioning seat; 7. back-up ring one; 8. back-up ring two; 9. back-up ring three; 10. back-up ring four, 11. upper end piston rods, 12. lower end piston rods, 13. hypomere front columns.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.

With reference to Fig. 1, Fig. 2, the structure of apparatus of the present invention is, comprises derrick epimere 1 and derrick hypomere 4, and derrick epimere 1 is sleeved in derrick hypomere 4 inner chambers, and derrick epimere 1 can move up along derrick hypomere 4 inner chambers; In derrick epimere 1 one sides, be vertically installed with guide rail 5, between the upper and lower side in guide rail 5, be slidably fitted with the cylinder folder 3 that floats; On derrick hypomere 4 same sides, be installed with oil cylinder positioning seat 6, unsteady cylinder folder 3 and oil cylinder positioning seat 6 are two, a upper and lower corresponding unsteady cylinder presss from both sides in 3 through holes and oil cylinder positioning seat 6 through holes and is slidably fitted with a telescopic oil cylinder 2 simultaneously, on the cylinder body of each telescopic oil cylinder 2, is set with a unsteady cylinder folder 3 and an oil cylinder positioning seat 6.

Fig. 3 is the A-A sectional view of Fig. 1, and telescopic oil cylinder 2 is two, is arranged on the same side of derrick hypomere 4; Fig. 4 is the B-B sectional view in Fig. 2, and the cylinder folder 3 that floats is also two.

With reference to Fig. 5, Fig. 6, telescopic oil cylinder 2 is provided with the upper end piston rod 11 that can protrude upward and the lower end piston rod 12 that can stretch out downwards, the termination of upper end piston rod 11 is fixedly connected with the upper end of derrick epimere 1, and the termination of lower end piston rod 12 is fixedly connected with the hypomere front column 13 of derrick hypomere 4; The cylinder body epimere of telescopic oil cylinder 2 is fixedly installed back-up ring 1, back-up ring 28 from top to bottom, and the cylinder body stage casing of telescopic oil cylinder 2 is fixedly installed back-up ring 39, and the cylinder body hypomere of telescopic oil cylinder 2 is fixedly installed back-up ring 4 10; Unsteady cylinder presss from both sides 3 slip caps and is contained in the cylinder body section of the telescopic oil cylinder 2 between back-up ring 1, back-up ring 28, and oil cylinder positioning seat 6 slip caps are contained in the cylinder body section of the telescopic oil cylinder 2 between back-up ring 39, back-up ring 4 10.

The effect of back-up ring 1 is, when upper end piston rod 11 stretches out, control derrick epimere 1 guide rail 5 lower end on the amount of moving

The effect of back-up ring 39 is that, when upper end piston rod 11 stretches out, the outer cylinder body that can limit telescopic oil cylinder 2 can not produce and move downward.

The effect of back-up ring 4 10 is that, when lower end piston rod 12 stretches out maximum, the outer cylinder body that can limit telescopic oil cylinder 2 can not move upward again.

As Fig. 2, when injection liquid force feed in telescopic oil cylinder 2, hydraulic pressure reaches after lower limit set pressure, telescopic oil cylinder 2 upper end piston rods 11 protrude upward, drive derrick epimere 1 and guide rail 5 thereof to protrude upward, when until float, cylinder folder 3 contacts with guide rail 5 lower surfaces, stop, now, telescopic oil cylinder 2 upper end piston rods 11 stretch out completely.In this process, the outer cylinder body of back-up ring 39 restriction telescopic oil cylinders 2 can not produce and move downward.

As Fig. 5, the inner hydraulic fluid pressure that injects of telescopic oil cylinder 2 continues to increase, hydraulic pressure reaches after upper limit setting pressure, the lower end piston rod 12 of telescopic oil cylinder 2 starts to stretch out, promote the upwards walking again of telescopic oil cylinder 2 and derrick epimere 1, when back-up ring 4 10 rises to while contacting with oil cylinder positioning seat 6, lower end piston rod 12 is upheld maximum length, derrick epimere 1 just moves to assigned address (approaching extreme higher position), the respective pin hole of the pin-and-hole of derrick epimere 1 lower end and derrick hypomere 4 upper ends aligns one by one, bearing pins between derrick epimere 1 and derrick hypomere 4 now can be installed, by bearing pins, realize the locking of derrick epimere 1 and derrick hypomere 4.

Claims

1. the self locating device that stretches out that is set with derrick, is characterized in that: comprise derrick epimere (1) and derrick hypomere (4), derrick epimere (1) is sleeved in derrick hypomere (4) inner chamber; In derrick epimere (1) one side, be vertically installed with guide rail (5), between the upper and lower side in guide rail (5), be slidably fitted with the cylinder folder (3) that floats; On derrick hypomere (4) same side, be installed with oil cylinder positioning seat (6), in float cylinder folder (3) through hole and oil cylinder positioning seat (6) through hole, be slidably fitted with telescopic oil cylinder (2) simultaneously;

The cylinder body epimere of described telescopic oil cylinder (2) is fixedly installed back-up ring one (7), back-up ring two (8) from top to bottom, and the cylinder body stage casing of telescopic oil cylinder (2) is provided with back-up ring three (9), and the cylinder body hypomere of telescopic oil cylinder (2) is provided with back-up ring four (10); Cylinder folder (3) slip cap that floats is contained in the cylinder body section of the telescopic oil cylinder (2) between back-up ring one (7), back-up ring two (8), and oil cylinder positioning seat (6) slip cap is contained in the cylinder body section of the telescopic oil cylinder (2) between back-up ring three (9), back-up ring four (10);

Described telescopic oil cylinder (2) is two, be arranged on the same side of derrick hypomere (4), corresponding, the cylinder that floats presss from both sides (3) and oil cylinder positioning seat (6) is two, and a upper and lower corresponding unsteady cylinder presss from both sides in (3) through hole and an oil cylinder positioning seat (6) through hole and is slidably fitted with a telescopic oil cylinder (2) simultaneously; Telescopic oil cylinder (2) is provided with the upper end piston rod (11) that can protrude upward and the lower end piston rod (12) that can stretch out downwards, the termination of upper end piston rod (11) is fixedly connected with the upper end of derrick epimere (1), and the termination of lower end piston rod (12) is fixedly connected with the hypomere front column (13) of derrick hypomere (4).