CN217947497U - Oil cylinder driving type multi-stage telescopic mast - Google Patents

Abstract

The utility model provides a multi-stage telescopic mast of oil cylinder drive formula, including multi-stage telescopic rod, be equipped with a plurality of hydro-cylinders in the multi-stage telescopic rod, set firmly the round pin axle between two adjacent telescopic rods, the interior pole tip of multi-stage telescopic rod sets firmly the arm head, outer pole one side of multi-stage telescopic rod sets firmly the winch, the winch walks around the arm head through wire rope and is connected with the lifting hook, the arm head below is equipped with the sensor that targets in place, be equipped with davit rotating head and load sensor on the interior pole, the outer pole outside is equipped with sensor and hydraulic tong that targets in place down; the bearing pin shaft is convenient to insert and install between the rods; the problem that a steel wire rope is required to bear during lifting or operation of a conventional telescopic mast is solved; the problem that a plurality of groups of connecting pipelines are needed in the telescopic process of the telescopic oil cylinder is solved; the boom rotating head rotates the boom head to realize the function of hoisting the pipe column to center the wellhead; the upper position sensor is used for detecting whether the lifting hook is retracted or not, the lower position sensor is used for detecting the distance of the lower pipe column of the winch, and the load sensor is used for detecting the hoisting load and the deformation of the inner pipe.

Description

Oil cylinder driving type multi-stage telescopic mast

Technical Field

The utility model relates to a technical field of flexible mast, concretely relates to multistage flexible mast of cylinder drive formula.

Background

With the enhancement of environmental awareness of people and the continuous maturity and progress of oil and gas development technology, the pressurized operation is popularized in a larger range due to the characteristics that the pressurized operation can effectively protect an oil and gas reservoir and reduce the discharge of well killing fluid. The telescopic mast is one of standard configurations of pressurized operation equipment, and mainly used for hoisting and lowering an oil well pipe column and an operation tool between the ground and an aerial operation platform.

Because the length of the pipe column and the downhole tool string has a limit requirement on the hoisting clearance height of the telescopic mast, the total length of the telescopic mast in the extending state is generally more than 18 meters, and the telescopic mast in the retracting state is generally within 9 meters for convenient transportation, so that the development of the telescopic mast which is high in safety and reliability and can realize convenient and fast extension is necessary.

At present, two-section telescopic masts of domestic and foreign operation equipment are driven to extend and retract by steel wire ropes or driven to extend and retract by a single oil cylinder, and three-section telescopic masts are driven to extend and retract by steel wire ropes or synchronously driven by combination of the oil cylinder and the steel wire ropes.

The three-section telescopic mast is driven by a steel wire rope or driven by the combination of an oil cylinder and the steel wire rope to stretch, the steel wire rope is broken suddenly in the stretching process or the operation process, and the telescopic mast can fall suddenly due to the breakage of the steel wire rope, so that the risks of equipment damage, personnel injury and the like are caused.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a multi-stage telescopic mast of oil cylinder driving type, which solves the problems of the prior art.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the multi-stage telescopic rod lifting device comprises multi-stage telescopic rods, wherein a plurality of oil cylinders are arranged in the multi-stage telescopic rods, a pin shaft is fixedly arranged between every two adjacent telescopic rods, an arm head is fixedly arranged at the end part of an inner rod of each multi-stage telescopic rod, a winch is fixedly arranged on one side of an outer rod of each multi-stage telescopic rod, the winch bypasses the arm head through a steel wire rope and is connected with a lifting hook, an upper in-place sensor is arranged below the arm head, a suspension arm rotating head and a load sensor are arranged on the inner rod, and a lower in-place sensor and a hydraulic clamp are arranged on the outer side of the outer rod;

the upper in-place sensor is used for detecting the in-place of the lifting hook, the lifting arm rotating head is used for rotating the arm head, the load sensor is used for detecting the lifting load and the deformation of the inner rod, the lower in-place sensor is used for detecting the distance between the lower pipe column of the winch, and the hydraulic tongs are used for the upper and lower buckling functions of the pipe column.

In the preferred scheme, the multi-stage telescopic rod comprises an inner rod, a middle rod and an outer rod, the inner rod is abutted against the middle rod to slide, the middle rod is abutted against the outer rod to slide, a first pin shaft is fixedly arranged between the inner rod and the middle rod, and a second pin shaft is fixedly arranged between the middle rod and the outer rod.

In the preferred scheme, a first oil cylinder and a second oil cylinder are arranged in the multi-stage telescopic rod, the first oil cylinder and the second oil cylinder are arranged oppositely, the cylinder barrel of the first oil cylinder and the cylinder barrel of the second oil cylinder are fixedly connected, the end part of a piston rod of the first oil cylinder is hinged to the bottom of the outer rod, the bottom of the cylinder barrel of the second oil cylinder is hinged to the bottom of the middle rod, and the end part of a piston rod of the second oil cylinder is hinged to the top of the inner rod.

In the preferred scheme, the inner rod is divided into a middle inner rod and a middle outer rod, the inner rod is abutted against and slides in the middle inner rod, the middle inner rod is abutted against and slides in the middle outer rod, the middle outer rod is abutted against and slides in the outer rod, and a pin shaft is fixedly arranged between the middle inner rod and the middle outer rod.

In the preferred scheme, a first oil cylinder, a second oil cylinder and a third oil cylinder are arranged in the multi-stage telescopic rod, the first oil cylinder and the second oil cylinder are arranged oppositely, the cylinder barrel of the first oil cylinder and the cylinder barrel of the second oil cylinder are fixedly connected, the cylinder barrel end of the third oil cylinder and the piston rod end of the first oil cylinder are fixedly connected, the piston rod end of the third oil cylinder is hinged to the bottom of the outer rod, the piston rod end of the first oil cylinder is hinged to the bottom of the middle outer rod, the cylinder barrel bottom of the second oil cylinder is hinged to the bottom of the middle inner rod, and the piston rod end of the second oil cylinder is hinged to the top of the inner rod.

In the preferred scheme, the winches are a first winch and a second winch, a plurality of groups of guide pulleys are arranged in the arm head, and the first winch and the second winch are wound on the guide pulleys through a first steel wire rope and a second steel wire rope and are fixedly connected with the lifting hook.

In the preferred scheme, a telescopic bracket is fixedly arranged between the hydraulic clamp and the outer rod, and an oil cylinder is arranged in the telescopic bracket and used for driving the hydraulic clamp to transversely stretch.

In the preferred scheme, the cylinder end inner cavity of the first oil cylinder is communicated with the cylinder end inner cavity of the second oil cylinder, and the piston rod end inner cavity of the first oil cylinder is communicated with the piston rod end inner cavity of the second oil cylinder.

In the preferred scheme, a piston rod of the first oil cylinder is in a hollow design, and an inner cavity of a cylinder barrel end is connected with an inner guide pipe of the piston rod, so that an oil inlet and an oil return port of the first oil cylinder are formed in the lower end of the piston rod.

In the preferred scheme, the first oil cylinder, the second oil cylinder and the inner cavity of the cylinder end of the third oil cylinder are communicated, the first oil cylinder, the second oil cylinder and the inner cavity of the piston rod end of the third oil cylinder are communicated, and the inner cavity of the cylinder end and the oil inlet and return port of the inner cavity of the piston rod are arranged at the piston rod end of the oil cylinder at the lowest end.

The utility model provides a multistage flexible mast of cylinder drive formula, beneficial effect:

1. the telescopic mast can realize single-section gradual expansion through the driving of the oil cylinder, and is convenient for inserting bearing pin shafts between the rods;

2. the telescopic mast is matched with the bearing pin shaft, so that the problem that a steel wire rope is required to bear during lifting or operation of the conventional telescopic mast is solved, and the risk of rope breakage is avoided;

3. the oil inlet and return port of the telescopic oil cylinder is arranged at the end of the piston rod at the lowest part, so that the problem that a plurality of groups of connecting pipelines are required in the telescopic process of the telescopic oil cylinder is solved;

4. the rotation angle of the suspension arm rotating head can be controlled remotely and is used for rotating the arm head to realize the function of centering a hoisting pipe column on a wellhead;

5. the upper position sensor is used for detecting whether the lifting hook is retracted or not and preventing the winch from overwinding to damage equipment, the lower position sensor is used for detecting the distance of the winch to lower the tubular column, so that an operator can conveniently judge whether the hoisting tubular column is buckled with the wellhead tubular column or not, and the load sensor is used for detecting hoisting load and inner pipe deformation;

6. the telescopic support drives the hydraulic clamp to move in a telescopic mode, and the hydraulic clamp clamps the tubular column, so that the pipe column is used for the screwing-on and unscrewing functions.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is a front view of the overall structure of the utility model;

fig. 2 is an expanded front view of the whole structure of the present invention;

FIG. 3 is a schematic view of the connection of the three-section internal cylinder of the present invention;

FIG. 4 is a schematic view of the connection of the four-section internal cylinder of the present invention;

in the figure: an arm head 1; an inner rod 2; a middle rod 3; an outer rod 4; a first winch 5; a second winch 6; a first wire rope 7; a second wire rope 8; a hook 9; a first pin 10; a second pin 11; a first cylinder 12; a second cylinder 13; a third cylinder 14; an up-position sensor 15; a boom swivel 16; a load sensor 17; a lower-position sensor 18; a telescopic bracket 19; a hydraulic clamp 20; a middle inner rod 21; a middle and outer rod 22.

Detailed Description

Example 1

As shown in fig. 1 to 4, an oil cylinder driven multi-stage telescopic mast comprises multi-stage telescopic rods, wherein a plurality of oil cylinders are arranged in the multi-stage telescopic rods, a pin shaft is fixedly arranged between two adjacent telescopic rods, an arm head 1 is fixedly arranged at the end part of an inner rod 2 of each multi-stage telescopic rod, a winch is fixedly arranged on one side of an outer rod 4 of each multi-stage telescopic rod, the winch bypasses the arm head 1 through a steel wire rope and is connected with a lifting hook 9, an upper in-place sensor 15 is arranged below the arm head 1, a suspension arm rotating head 16 and a load sensor 17 are arranged on the inner rod 2, and a lower in-place sensor 18 and a hydraulic clamp 20 are arranged outside the outer rod 4;

the upper in-place sensor 15 is used for detecting the in-place of the lifting hook 9, the suspension arm rotating head 16 is used for rotating the arm head 1, the load sensor 17 is used for detecting the hoisting load and the deformation of the inner rod 2, the lower in-place sensor 18 is used for detecting the distance of a lower pipe column of the winch, and the hydraulic clamp 20 is used for the screwing-on and unscrewing functions of the pipe column. By the structure, the oil cylinder can be pushed to drive the multi-stage telescopic rod to move from the inside, the multi-stage telescopic rod can be fixed through the pin shaft after stretching to the right place, the steel wire rope on the winch bypasses the arm head 1 to be connected with the lifting hook 9, the fixed pipe column of the lifting hook 9 can be lifted to the pipe column, when the lifting is carried out, the lifting position can be monitored by the sensor 15 which is in place on the upper part and the sensor 18 which is in place down, the suspension arm rotating head 16 can rotate, the rotating angle can be remotely controlled, the function of the lifting pipe column centering wellhead is realized, the lifting load and the inner pipe deformation can be detected through the load sensor 17 when the lifting is carried out, the hydraulic clamp 20 can clamp the pipe column, the pipe column is used for the upper part and the shackle function of the pipe column.

In the preferred scheme, multistage telescopic link is interior pole 2, king-rod 3 and outer pole 4, and interior pole 2 supports and leans on and slides in king-rod 3, and king-rod 3 supports and leans on and slides in outer pole 4, has set firmly first round pin axle 10 between interior pole 2 and the king-rod 3, has set firmly second round pin axle 11 between king-rod 3 and the outer pole 4. From this structure, multistage telescopic link is the three-section formula, and interior pole 2, king-rod 3 and outer pole 4 expand the back completely, fix interior pole 2 and king-rod 3 through first round pin axle 10 and second round pin axle 11.

In the preferred scheme, a first oil cylinder 12 and a second oil cylinder 13 are arranged in the multi-stage telescopic rod, the first oil cylinder 12 and the second oil cylinder 13 are oppositely arranged, a cylinder barrel of the first oil cylinder 12 is fixedly connected with a cylinder barrel of the second oil cylinder 13, the end part of a piston rod of the first oil cylinder 12 is hinged to the bottom of the outer rod 4, the bottom of the cylinder barrel of the second oil cylinder 13 is hinged to the bottom of the middle rod 3, and the end part of the piston rod of the second oil cylinder 13 is hinged to the top of the inner rod 2. With the structure, the first oil cylinder 12 and the second oil cylinder 13 can push and drive the inner rod 2 and the middle rod 3 to move.

In the preferred scheme, the inner rod 2 is divided into a middle inner rod 21 and a middle outer rod 22, the inner rod 2 abuts against and slides in the middle inner rod 21, the middle inner rod 21 abuts against and slides in the middle outer rod 22, the middle outer rod 22 abuts against and slides in the outer rod 4, and a pin shaft is fixedly arranged between the middle inner rod 21 and the middle outer rod 22. With the structure, the multi-stage telescopic rod is of a four-section type, and the inner rod 2, the middle inner rod 21, the middle outer rod 22 and the outer rod 4 are fixed through pin shafts after being completely unfolded.

In the preferred scheme, a first oil cylinder 12, a second oil cylinder 13 and a third oil cylinder 14 are arranged in the multi-stage telescopic rod, the first oil cylinder 12 and the second oil cylinder 13 are arranged oppositely, a cylinder barrel of the first oil cylinder 12 is fixedly connected with that of the second oil cylinder 13, the end part of a cylinder barrel of the third oil cylinder 14 is fixedly connected with the end part of a piston rod of the first oil cylinder 12, the end part of a piston rod of the third oil cylinder 14 is hinged to the bottom of the outer rod 4, the end part of a piston rod of the first oil cylinder 12 is hinged to the bottom of the middle outer rod 22, the bottom part of a cylinder barrel of the second oil cylinder 13 is hinged to the bottom of the middle inner rod 21, and the end part of a piston rod of the second oil cylinder 13 is hinged to the top of the inner rod 2. With the structure, the first oil cylinder 12, the second oil cylinder 13 and the third oil cylinder 14 can push and drive the inner rod 2, the middle inner rod 21 and the middle and outer rod 22 to move.

In the preferred scheme, the winches are a first winch 5 and a second winch 6, a plurality of groups of guide pulleys are arranged in the arm head 1, and the first winch 5 and the second winch 6 are wound on the guide pulleys through a first steel wire rope 7 and a second steel wire rope 8 and are fixedly connected with a lifting hook 9. According to the structure, two or three groups of guide pulleys are arranged at two ends of the arm head 1 and used for guiding the first steel wire rope 7 and the second steel wire rope 8, the first winch 5 and the second winch 6 are used for hoisting and hoisting below, the first winch 5 and the second winch 6 are arranged in a high-low position mode, interference of the two groups of steel wire ropes is avoided, the first winch 5 and the second winch 6 drive the lifting hook 9 to move through the steel wire ropes, and therefore the function of hoisting and moving the pipe column and tools on the ground and the aerial work platform is achieved.

In the preferred scheme, a telescopic bracket 19 is fixedly arranged between the hydraulic clamp 20 and the outer rod 4, and an oil cylinder is arranged in the telescopic bracket 19 and used for driving the hydraulic clamp 20 to transversely stretch. With the structure, the built-in oil cylinder of the telescopic bracket 19 can drive the extending hydraulic clamp 20 to send the hydraulic clamp 20 to the tubing coupling, so that the pipe column screwing-in and unscrewing operation process is completed.

In a preferred scheme, a cylinder end inner cavity of the first oil cylinder 12 is communicated with a cylinder end inner cavity of the second oil cylinder 13, and a piston rod end inner cavity of the first oil cylinder 12 is communicated with a piston rod end inner cavity of the second oil cylinder 13.

In the preferred scheme, a piston rod of the first oil cylinder 12 is in a hollow design, and an inner cavity of a cylinder barrel end is connected with an inner guide pipe of the piston rod, so that an oil inlet and an oil return port of the first oil cylinder 12 are formed in the lower end of the piston rod. From this structure, when three section formula telescopic links drive, can advance at first hydro-cylinder 12, the oil return opening lets in hydraulic oil and can drive first hydro-cylinder 12 and second hydro-cylinder 13 and drive interior pole 2 and well pole 3 and remove, realize that the hydraulic fluid port is located the below, solved the flexible in-process of flexible hydro-cylinder and needed multiunit connecting line problem.

In the preferred scheme, the cylinder end inner cavities of the first oil cylinder 12, the second oil cylinder 13 and the third oil cylinder 14 are communicated, the piston rod end inner cavities of the first oil cylinder 12, the second oil cylinder 13 and the third oil cylinder 14 are communicated, and the cylinder end inner cavity and the oil inlet and return ports of the piston rod inner cavity are arranged at the piston rod end of the oil cylinder at the lowest end. With the structure, when the four-section type telescopic rod is driven, the oil port is positioned at the lowest part of the third oil cylinder 14, and the problem that a plurality of groups of connecting pipelines are needed in the telescopic process of the telescopic oil cylinder is solved.

The above-mentioned embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and equivalents including technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims (10)

1. The utility model provides a multi-stage flexible mast of cylinder drive formula which characterized by: including multistage telescopic link, be equipped with a plurality of hydro-cylinders in the multistage telescopic link, round pin axle has set firmly between two adjacent telescopic links, interior pole (2) tip of multistage telescopic link has set firmly arm head (1), outer pole (4) one side of multistage telescopic link has set firmly the winch, the winch walks around arm head (1) through wire rope and is connected with lifting hook (9), arm head (1) below is equipped with puts in place sensor (15), be equipped with davit (16) and load sensor (17) on interior pole (2), outer pole (4) outside is equipped with puts in place sensor (18) and hydraulic tong (20) down.

2. The cylinder-driven multi-stage telescopic mast as defined in claim 1, wherein: multistage telescopic link is interior pole (2), king-rod (3) and outer pole (4), and interior pole (2) support and slide in king-rod (3), and king-rod (3) support and slide in outer pole (4), has set firmly first round pin axle (10) between interior pole (2) and king-rod (3), has set firmly second round pin axle (11) between king-rod (3) and outer pole (4).

3. The cylinder-driven multi-stage telescopic mast as defined in claim 2, wherein: be equipped with first hydro-cylinder (12) and second hydro-cylinder (13) in the multi-stage telescopic pole, first hydro-cylinder (12) and second hydro-cylinder (13) opposite setting, the cylinder fixed connection of first hydro-cylinder (12) and second hydro-cylinder (13), the rod end of piston of first hydro-cylinder (12) articulates in outer pole (4) bottom, the cylinder bottom of second hydro-cylinder (13) articulates in well pole (3) bottom, the rod end of piston of second hydro-cylinder (13) articulates at interior pole (2) top.

4. The cylinder-driven multi-stage telescopic mast as defined in claim 2, wherein: the inner rod (2) is divided into a middle inner rod (21) and a middle outer rod (22), the inner rod (2) is abutted against the middle inner rod (21) to slide, the middle inner rod (21) is abutted against the middle outer rod (22) to slide, the middle outer rod (22) is abutted against the outer rod (4) to slide, and a pin shaft is fixedly arranged between the middle inner rod (21) and the middle outer rod (22).

5. The cylinder-driven multi-stage telescopic mast as defined in claim 4, wherein: a first oil cylinder (12) is arranged in the multi-stage telescopic rod, a second oil cylinder (13) and a third oil cylinder (14) are arranged in the multi-stage telescopic rod, the first oil cylinder (12) and the second oil cylinder (13) are arranged oppositely, a cylinder barrel of the first oil cylinder (12) and the second oil cylinder (13) is fixedly connected, a cylinder barrel end of the third oil cylinder (14) is fixedly connected with a piston rod end of the first oil cylinder (12), a piston rod end of the third oil cylinder (14) is hinged to the bottom of the outer rod (4), a piston rod end of the first oil cylinder (12) is hinged to the bottom of the middle outer rod (22), a cylinder barrel bottom of the second oil cylinder (13) is hinged to the bottom of the middle inner rod (21), and a piston rod end of the second oil cylinder (13) is hinged to the top of the inner rod (2).

6. The cylinder-driven multi-stage telescopic mast as claimed in claim 1, wherein: the winch comprises a first winch (5) and a second winch (6), a plurality of groups of guide pulleys are arranged in the arm head (1), and the first winch (5) and the second winch (6) are wound on the guide pulleys through a first steel wire rope (7) and a second steel wire rope (8) and are fixedly connected with a lifting hook (9).

7. The cylinder-driven multi-stage telescopic mast as defined in claim 1, wherein: a telescopic bracket (19) is fixedly arranged between the hydraulic clamp (20) and the outer rod (4), and an oil cylinder is arranged in the telescopic bracket (19) and is used for driving the hydraulic clamp (20) to transversely extend and retract.

8. The cylinder-driven multi-stage telescopic mast as claimed in claim 3, wherein: the cylinder end inner cavity of the first oil cylinder (12) is communicated with the cylinder end inner cavity of the second oil cylinder (13), and the piston rod end inner cavity of the first oil cylinder (12) is communicated with the piston rod end inner cavity of the second oil cylinder (13).

9. The cylinder-driven multi-stage telescopic mast as defined in claim 8, wherein: the piston rod of the first oil cylinder (12) is in a hollow design, and the inner cavity of the cylinder barrel end is connected with the inner guide pipe of the piston rod, so that the oil inlet and the oil return port of the first oil cylinder (12) are formed in the lower end of the piston rod.

10. The cylinder-driven multi-stage telescopic mast as defined in claim 5, wherein: the first oil cylinder (12), the second oil cylinder (13) and the cylinder barrel end inner cavity of the third oil cylinder (14) are communicated, the first oil cylinder (12), the second oil cylinder (13) and the piston rod end inner cavity of the third oil cylinder (14) are communicated, and oil inlet and return ports of the cylinder barrel end inner cavity and the piston rod inner cavity are arranged at the piston rod end of the oil cylinder at the lowest end.

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