CN217760890U

CN217760890U - Derrick upper and lower body telescoping device

Info

Publication number: CN217760890U
Application number: CN202221986283.8U
Authority: CN
Inventors: 朱颢; 肖冠琦; 谢刘磊; 张琴; 饶庆; 刘洋
Original assignee: Sinopec Oilfield Equipment Corp; Sinopec Siji Petroleum Machinery Co Ltd
Current assignee: Sinopec Oilfield Equipment Corp; Sinopec Siji Petroleum Machinery Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-08
Anticipated expiration: 2032-07-29

Abstract

The utility model provides a derrick upper and lower part of body telescoping device, including setting up two formula telescopic cylinder that rise on the derrick back leg, two both ends that rise formula telescopic cylinder all are provided with the piston rod to through the piston rod respectively with the derrick upper part of the body and the derrick lower part of the body connection in the derrick, two cylinder that rise formula telescopic cylinder slide and set up in the derrick, the derrick upper part of the body and derrick are internal all to be provided with the guide structure who is used for the cylinder direction down, the middle part and the both ends of cylinder all are provided with hydraulic oil pipeline. The utility model provides a flexible in the flexible derrick that exists among the prior art with the piston rod overlength and lead to the unstable problem of piston rod, produced the effect that improves the stability of telescoping device.

Description

Derrick upper and lower body telescoping device

Technical Field

The utility model relates to a flexible derrick technical field especially relates to a derrick upper and lower body telescoping device.

Background

The vehicle-mounted drilling machine is usually provided with a telescopic derrick, a telescopic device is arranged in the telescopic derrick, the telescopic device is a telescopic oil cylinder and is usually arranged at the rear leg of the derrick, and the upper derrick body slides relative to the lower derrick body through the telescopic oil cylinder.

Because the elongation of the derrick is equal to that of the telescopic device, the piston rods required by the two derricks are longer, and the stability of the derrick is reduced when the piston rods extend out too long; in consideration of stability of a piston rod and convenience in transportation after the derrick is contracted, a multi-section derrick is arranged, for example, a stand-alone hydraulic telescopic derrick disclosed in chinese patent CN109611031a is provided with a lower derrick section, a middle derrick section and an upper derrick section, and is provided with a middle telescopic cylinder and an upper telescopic cylinder, so that the overall length of the derrick is shorter than that of a two-section derrick when the middle derrick section and the upper derrick section are retracted into the lower derrick section.

However, in the three-section derrick, the width of the upper section of the derrick is smaller than that of the middle section of the derrick, and the width of the middle section of the derrick is smaller than that of the lower section of the derrick, so that the lower section of the derrick is arranged to be wider in order to ensure the strength of the upper section of the derrick, the overall weight of the derrick is larger, the bearing force of a vehicle is stronger, and the requirements on a transportation road are higher.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model provides a derrick upper and lower part of the body telescoping device, it has solved the derrick that has the three section form of more elongation among the prior art and has existed and has higher to the performance of carrying the car and haulage way's requirement, the problem of the transportation of being not convenient for in the subregion.

According to the utility model discloses an embodiment, a derrick upper and lower part of body telescoping device, including setting up two formula telescopic cylinder that rise on the derrick back leg, two both ends that rise formula telescopic cylinder all are provided with the piston rod to through the piston rod respectively with the derrick upper part of the body and the derrick lower part of the body connection in the derrick, two cylinder that rise formula telescopic cylinder slide and set up in the derrick, the derrick upper part of the body and derrick are internal all to be provided with the guide structure who is used for the cylinder direction down, the middle part and the both ends of cylinder all are provided with hydraulic oil pipeline.

Preferably, the middle part of the derrick upper part of the body and the derrick lower part of the body is provided with respectively and is used for the spacing clamp of first spacing clamp and second of cylinder direction, the both ends of cylinder all are provided with the spacing ring, and the external diameter of spacing ring is greater than the internal diameter of the spacing clamp of first spacing clamp and second, and first spacing clamp and second are located between the spacing ring at cylinder both ends.

Preferably, when the derrick is completely contracted, the first limiting clamp and the second limiting clamp are respectively attached to the top surface and the bottom surface of the limiting ring arranged in the middle of the cylinder barrel, and the hydraulic oil pipeline is arranged on the limiting ring in the middle of the cylinder barrel and at the two ends of the cylinder barrel.

Preferably, the telescopic device comprises at least two double-lift telescopic oil cylinders arranged side by side.

Preferably, the lengths of the piston rods at the two ends of the double-lift telescopic oil cylinder are equal.

Compared with the prior art, the utility model discloses following beneficial effect has:

the oil supply is carried out on the double-lift telescopic oil cylinder through a hydraulic oil pipeline in the middle of the cylinder barrel, the oil discharge is carried out through hydraulic oil pipes at two ends of the cylinder barrel, piston rods at two ends of the double-lift telescopic oil cylinder simultaneously extend out, the piston rod at the top pushes the derrick upper body to move upwards, the piston rod at the bottom pushes the cylinder barrel to move upwards and further pushes the derrick upper body to move upwards, and finally the derrick upper body moves to the working height; adopt two lift-type telescopic cylinder to carry out the jacking of derrick upper part of the body, satisfying under the condition to the jacking height of derrick upper part of the body, promote the double-piston rod who replaces the bi-polar with the single piston rod of original one end and carry out the jacking, shortened the length of single piston rod, and then promoted the stability of piston rod.

Drawings

Fig. 1 is a schematic structural diagram of contraction and extension of a double-lift cylinder in an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a dual-lift cylinder in an embodiment of the present invention.

In the drawings, wherein: 1. a double-lift telescopic oil cylinder; 11. a cylinder barrel; 12. a piston rod; 13. a limiting ring; 2. a derrick upper body; 3. a derrick lower body; 4. a first limit clamp; 5. and a second limit clamp.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in the figures 1-2, the arrangement of the vehicle-mounted telescopic derrick is realized by two derricks, and a double-lift telescopic oil cylinder 1 is used for driving the integral lifting of the derrick.

The utility model provides a derrick upper and lower body telescoping device, including setting up two formula telescopic cylinder 1 that rise on the derrick back leg, two both ends that rise formula telescopic cylinder 1 all are provided with piston rod 12 to be connected with derrick upper part of the body 2 and the derrick lower part of the body 3 in the derrick respectively through piston rod 12, two cylinder 11 that rise formula telescopic cylinder 1 slide and set up in the derrick, all be provided with the guide structure who is used for cylinder 11 direction in derrick upper part of the body 2 and the derrick lower part of the body 3, the middle part and the both ends of cylinder 11 all are provided with hydraulic pressure oil pipe way.

Hydraulic oil is input into a hydraulic oil channel in the middle of the cylinder barrel 11 through a hydraulic station, so that two piston rods 12 at two ends of the cylinder barrel 11 move away from each other, a distance is arranged between the close ends of the two piston rods 12 when the double-lift telescopic oil cylinder 1 is in a contraction state, and when the piston rods 12 move, the movable end of the piston rod 12 at the top is connected to a crown block base plane lug plate of the derrick upper body 2, so that the derrick upper body 2 is pushed to move upwards, and the derrick upper body 2 is stretched out; the movable end of the piston rod 12 at the bottom is connected to the ear plate of the fixed beam of the derrick lower body, the cylinder 11 is pushed to move upwards by the reaction force, and the derrick upper body 2 can be further pushed to move upwards, so that the two piston rods 12 at the two ends of the cylinder 11 jointly complete the lifting of the derrick upper body 2 to the working height.

When the hydraulic oil pipelines at the top end and the bottom end of the cylinder 11 extend out of the derrick upper body 2, the hydraulic oil in the cylinder 11 is pumped out and matched with the hydraulic oil entering the hydraulic oil pipelines in the middle of the cylinder 11 to push the piston rod 12 to extend out.

As shown in fig. 2, to improve the stability of the movement of the cylinder 11. The middle part of derrick upper part of the body 2 and derrick lower part of the body 3 is provided with respectively and is used for the spacing clamp 4 of first spacing clamp 4 and the spacing clamp 5 of second of cylinder 11 direction, the both ends of cylinder 11 all are provided with spacing ring 13, and the external diameter of spacing ring 13 is greater than the internal diameter of the spacing clamp 4 of first spacing clamp 4 and second 5, and the spacing clamp 5 of first spacing clamp 4 and second is located between the spacing ring 13 at cylinder 11 both ends.

The first limiting clamp 4 and the second limiting clamp 5 guide the cylinder barrel 11, so that the cylinder barrel 11 can move along the axial direction of the cylinder barrel, the condition that the telescopic device deflects when jacking or contracting the derrick is avoided, and the overall stability of the derrick is improved; when the derrick upper body 2 moves upwards, the cylinder barrel 11 is jacked by the piston rod 12 at the bottom end, and after the limiting ring 13 at the bottom end of the cylinder barrel 11 is contacted with the second limiting clamp 5 in the derrick lower body 3, the limiting of the cylinder barrel 11 is realized; the piston rod 12 at the top end jacks up the derrick upper body 2, the first limiting clamp 4 in the derrick upper body 2 moves upwards, and after the cylinder barrel 11 is fixed, the first limiting clamp 4 is in contact with the limiting ring 13 at the top end of the cylinder barrel 11, so that the limiting of the piston rod 12 at the top end is realized, and the complete extension of the derrick upper body 2 is completed; the first limit clamp 4 and the second limit clamp 5 are matched with the two limit rings 13 to realize the righting of the double-lift telescopic oil cylinder 1 and ensure the telescopic positioning of the derrick upper body 2 in the telescopic process of the derrick upper body 2.

As shown in fig. 2, in order to avoid interference between the first limiting clamp 4 and the second limiting clamp 5 and the hydraulic oil pipeline on the cylinder 11 during the process of extending and retracting the derrick upper body 2. When the derrick is completely contracted, the first limiting clamp 4 and the second limiting clamp 5 are respectively attached to the top surface and the bottom surface of a limiting ring 13 arranged in the middle of the cylinder barrel 11, and the hydraulic oil pipeline is arranged in the middle of the cylinder barrel 11 and on the limiting ring 13 at the two ends of the cylinder barrel 11. The limiting ring 13 is used as an installation carrier of the hydraulic oil pipeline, when the limiting ring 13 is in contact with the first limiting clamp 4 or the second limiting clamp 5, the limiting of the cylinder barrel 11 is achieved, and the hydraulic oil pipeline installed on the cylinder barrel 11 is protected.

As a preferred embodiment of the present invention, the force applied to the derrick upper body 2 is uniform. The telescopic device comprises at least two double-lift telescopic oil cylinders 1 which are arranged side by side. Two ends of the crown block base plane of the derrick upper body 2 are both provided with connecting lug plates, and are connected with the end parts of piston rods 12 of the double-lift telescopic oil cylinder 1 through the connecting lug plates.

As a preferred embodiment of the present invention, the double-lift telescopic cylinder 1 is convenient to control to stretch and retract in place. The lengths of the piston rods 12 at the two ends of the double-lift telescopic oil cylinder 1 are equal.

Claims

1. The utility model provides a derrick upper and lower body telescoping device which characterized in that: the double-lift telescopic oil cylinder is characterized by comprising double-lift telescopic oil cylinders (1) arranged on rear legs of a derrick, wherein piston rods (12) are arranged at two ends of each double-lift telescopic oil cylinder (1), the double-lift telescopic oil cylinders are respectively connected with an upper derrick body (2) and a lower derrick body (3) in the derrick through the piston rods (12), a cylinder barrel (11) of each double-lift telescopic oil cylinder (1) is arranged in the derrick in a sliding mode, guide structures used for guiding the cylinder barrel (11) are arranged in the upper derrick body (2) and the lower derrick body (3), and hydraulic oil pipelines are arranged at the middle parts and two ends of the cylinder barrel (11).

2. The telescopic device for upper and lower bodies of a derrick according to claim 1, wherein: the middle part of the derrick upper part of the body (2) and the derrick lower part of the body (3) is provided with respectively and is used for first spacing clamp (4) and the spacing clamp (5) of second of cylinder (11) direction, the both ends of cylinder (11) all are provided with spacing ring (13), and the external diameter of spacing ring (13) is greater than the internal diameter of first spacing clamp (4) and the spacing clamp (5) of second, and first spacing clamp (4) and the spacing clamp (5) of second are located between spacing ring (13) at cylinder (11) both ends.

3. The telescopic device for upper and lower bodies of a derrick according to claim 2, wherein: when the derrick is completely contracted, the first limiting clamp (4) and the second limiting clamp (5) are respectively attached to the top surface and the bottom surface of a limiting ring (13) arranged in the middle of the cylinder barrel (11), and the hydraulic oil pipelines are arranged on the limiting ring (13) in the middle and at two ends of the cylinder barrel (11).

4. The telescopic device for upper and lower bodies of a derrick according to claim 1, wherein: the telescopic device comprises at least two double-lift telescopic oil cylinders (1) which are arranged side by side.

5. The telescopic device for upper and lower bodies of a derrick according to claim 1, wherein: the lengths of the piston rods (12) at the two ends of the double-lift telescopic oil cylinder (1) are equal.