CN102720437A

CN102720437A - Protrusion self-positioning device for nested headframe

Info

Publication number: CN102720437A
Application number: CN2012102106092A
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: 2012-10-10
Anticipated expiration: 2032-06-26
Also published as: CN102720437B

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 suit derrick stretch out self locating device

Technical field

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

Background technology

The suit derrick need upwards stretch out epimere in the hypomere in use and be lifted to assigned address, carries bearing pin so that install.In the process that existing suit derrick epimere stretches out; Need operating personnel whether to reach assigned address with the perusal epimere; Because of the operative employee apart from carrying many unfavorable factors such as nearly 20 meters of bearing pin, subtense angle perusal difficulty, be difficult to once stretch out put inefficiency in place.

Summary of the invention

The self locating device that stretches out that the purpose of this invention is to provide a kind of suit derrick has solved prior art and need rely on manually-operated, and operating accuracy is low, the problem that wastes time and energy.

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

The cylinder body epimere of described telescopic oil cylinder is set with 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, the 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, the back-up ring four.

Suit derrick of the present invention stretch out self locating device, its characteristic also is:

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, are slidingly fitted with a telescopic oil cylinder simultaneously in a corresponding up and down unsteady cylinder folder through hole and an oil cylinder positioning seat through hole; Telescopic oil cylinder is provided with upper end piston rod that can upwards stretch out 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, compare that utilize that oil cylinder positioning seat on telescopic oil cylinder back-up ring and the hypomere is spacing to make the accurate positioning of derrick epimere extended position, automaticity is high, can avoid maloperation, reduces the incidence of peril with the routine work mode.

Description of drawings

Fig. 1 is that the derrick epimere stretches out the pre-structure sketch map;

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

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

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

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

Fig. 6 is the telescoping cylinder structure chart.

Among the figure, 1. derrick epimere; 2. telescopic oil cylinder; 3. the 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 accompanying drawing and the specific embodiment the present invention is elaborated.

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; Vertically be installed with guide rail 5 in derrick epimere 1 one sides, be slidingly fitted with the cylinder folder 3 that floats between the upper and lower side in the guide rail 5; On derrick hypomere 4 same sides, be installed with oil cylinder positioning seat 6; The cylinder folder 3 that floats is two with oil cylinder positioning seat 6; A corresponding up and down unsteady cylinder presss from both sides in 3 through holes and oil cylinder positioning seat 6 through holes and is slidingly fitted with a telescopic oil cylinder 2 simultaneously, promptly all is set with 3 and oil cylinder positioning seats 6 of a unsteady cylinder folder on the cylinder body of each telescopic oil cylinder 2.

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 among Fig. 2, and the cylinder folder 3 that floats also is two.

With reference to Fig. 5, Fig. 6; Telescopic oil cylinder 2 is provided with upper end piston rod 11 that can upwards stretch out 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 set with back-up ring 1, back-up ring 28 from top to bottom, and the cylinder body stage casing of telescopic oil cylinder 2 is set with back-up ring 39, and the cylinder body hypomere of telescopic oil cylinder 2 is set with back-up ring 4 10; Unsteady cylinder presss from both sides the cylinder body section that 3 slip caps are contained in the telescopic oil cylinder 2 between back-up ring 1, the 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, the back-up ring 4 10.

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

The effect of back-up ring 39 is that when upper end piston rod 11 stretched 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 stretched out maximum, the outer cylinder body that can limit telescopic oil cylinder 2 can not move upward again.

Like Fig. 2; After in telescopic oil cylinder 2, inject hydraulic oil, hydraulic pressure reached lower limit set pressure, telescopic oil cylinder 2 upper end piston rods 11 upwards stretched out; Driving derrick epimere 1 and guide rail 5 thereof upwards stretches out; When unsteady cylinder folder 3 contacts with guide rail 5 lower surfaces, stop, at this moment, telescopic oil cylinder 2 upper end piston rods 11 stretch out fully.In this process, the outer cylinder body of back-up ring 39 restriction telescopic oil cylinders 2 can not produce and move downward.

Like Fig. 5, the telescopic oil cylinder 2 inner hydraulic fluid pressures that inject continue to increase, after hydraulic pressure reaches upper limit setting pressure; The lower end piston rod 12 of telescopic oil cylinder 2 begins to stretch out; Promote the upwards walking once more of telescopic oil cylinder 2 and derrick epimere 1, when back-up ring 4 10 rises to when contacting with oil cylinder positioning seat 6, lower end piston rod 12 is upheld maximum length; Derrick epimere 1 just moves to assigned address (near the 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, and can install the bearing pins between derrick epimere 1 and the derrick hypomere 4 this moment, realizes the locking of derrick epimere 1 and derrick hypomere 4 through bearing pins.

Claims

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

The cylinder body epimere of described telescopic oil cylinder (2) is set with 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), the 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), the back-up ring four (10).
2. suit derrick according to claim 1 stretch out self locating device; It is characterized in that: described telescopic oil cylinder (2) is two; Be arranged on the same side of derrick hypomere (4); Corresponding, float cylinder folder (3) and oil cylinder positioning seat (6) are two, and a corresponding up and down unsteady cylinder presss from both sides in (3) through hole and an oil cylinder positioning seat (6) through hole and is slidingly fitted with a telescopic oil cylinder (2) simultaneously; Telescopic oil cylinder (2) is provided with upper end piston rod (11) that can upwards stretch out 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).