Clamping device for mounting special coupling for petroleum drilling and production

Abstract

The utility model discloses a clamping device for mounting a coupling special for petroleum drilling and production, which relates to the technical field of clamping of the coupling special for petroleum drilling and production and comprises a lifting plate, a clamping bottom plate is arranged above the lifting plate, two groups of supporting columns are fixedly arranged on the upper end face of the lifting plate, and two groups of supporting springs are fixedly arranged at the bottom of the clamping bottom plate. The supporting spring is movably arranged on the outer side of the supporting column in a sleeving mode, supports are fixedly arranged on the two sides of the clamping bottom plate correspondingly, clamping rods are rotationally arranged in the two supports correspondingly, each clamping rod comprises a clamping end and a moving end, the two clamping rods are oppositely arranged, and a hydraulic cylinder A is horizontally arranged below the clamping bottom plate; according to the clamping device for installing the coupling special for petroleum drilling and production, the clamping bottom plate is movably connected with the lifting plate through the supporting spring, when the coupling and the axis of a pipeline have tiny deviation, the clamping bottom plate can be manually adjusted to ensure that the pipeline can be smoothly screwed into the coupling, and the physical labor of workers is reduced; and the installation efficiency and the installation flexibility are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of special coupling clamping for oil drilling, in particular to a clamping device for installing a special coupling for oil drilling. Background Art

[0002] A coupling is a kind of oil drilling pipe connector, usually composed of two threaded parts, used to connect special oil drilling pipes and parts. It is usually made of special materials for oil drilling (such as J55, N80, P110, etc.), with the same diameter as the pipe or slightly smaller than the pipe diameter. The main function of the coupling is to connect two pipes or connect the pipe and other parts. In the process of oil drilling, couplings are widely used to connect various oil drilling pipelines and equipment, such as oil pipelines, petrochemicals and other fields.

[0003] During the installation of the coupling, the coupling needs to be clamped due to its large size. After being clamped, the existing coupling is usually fixed with the clamping device. When the large-volume coupling is connected to the pipeline through threads, it is necessary to manually knock and adjust the position of the coupling to facilitate the connection between the coupling and the pipeline, which requires large manpower investment and low installation efficiency. Utility Model Content

[0004] In view of the above-mentioned existing large-volume couplings and pipelines need to be manually knocked to adjust the position of the couplings to facilitate the connection of the couplings and pipelines, the manpower investment is large and the installation efficiency is low, the present utility model is proposed.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a clamping device for installing a special coupling for oil drilling, which includes a lifting plate, characterized in that: a clamping base plate is arranged above the lifting plate, two groups of pillars are fixedly arranged on the upper end surface of the lifting plate, two groups of support springs are fixedly arranged on the bottom of the clamping base plate, the support springs are movably sleeved on the outer sides of the pillars, supports are fixedly arranged on both sides of the clamping base plate, clamping rods are rotatably arranged in the two groups of supports, the clamping rods include a clamping end and a moving end, the two groups of clamping rods are arranged oppositely, a hydraulic cylinder A is arranged below the clamping base plate, the hydraulic cylinder A is horizontally arranged, and a rotating seat A and a rotating seat B are respectively fixed on the output end and the end of the hydraulic cylinder A, and the rotating seat A and the rotating seat B are respectively rotatably connected to the ends of the moving ends of the two groups of clamping rods.

[0006] Preferably, a reinforcement plate is fixedly provided on the side where the two groups of supports are close to each other, and a limit plate is arranged above the two groups of reinforcement plates. The limit plate is V-shaped and fixedly mounted on the upper end surface of the clamping base plate.

[0007] Preferably, the ends of the clamping ends of the two groups of clamping rods are rotatably provided with clamping pads, and the contact surface of the clamping pads is arc-shaped.

[0008] Preferably, a boss is provided in the middle of the pillar, the diameter of the boss is larger than the diameter of the upper end of the pillar, and the support spring passes through the pillar and is movably arranged on the boss.

[0009] Preferably, a support plate is provided below the lifting plate, on which a hydraulic cylinder B and two sets of lifting rods are fixed, the output end of the hydraulic cylinder is movably connected to the bottom of the lifting plate, and the top end of the lifting rod is fixedly connected to the bottom of the lifting plate.

[0010] Preferably, the lifting rod and the hydraulic cylinder B are installed on the same axis of the support plate, and the hydraulic cylinder B is arranged between the two groups of lifting rods.

[0011] Beneficial effects of the utility model:

[0012] 1. The clamping base plate and the lifting plate are movably connected through the supporting spring. When there is a slight deviation between the axis of the coupling and the pipe, the clamping base plate can be manually adjusted to ensure that the pipe can be smoothly screwed into the coupling, which reduces the physical labor of the workers and improves the installation efficiency and flexibility.

[0013] 2. By setting two groups of clamping rods to be rotatably connected respectively, the two groups of clamping rods are movably connected through hydraulic cylinder A, which can be quickly clamped by hydraulic cylinder A, and the height of the clamping device can be adjusted by hydraulic cylinder B, which can be suitable for the installation of couplings of different heights under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the lifting plate and the clamping bottom plate of the utility model;

[0017] Figure 3 The main structure diagram of the utility model;

[0018] Figure 4 It is a left-side structural schematic diagram of the utility model.

[0019] Description of reference numerals:

[0020] 1. Lifting plate; 2. Clamping base plate; 3. Pillar; 4. Support; 5. Clamping rod; 501. Clamping end; 502. Moving end; 6. Support spring; 7. Hydraulic cylinder A; 8. Hydraulic cylinder B; 9. Rotating seat A; 10. Rotating seat B; 11. Reinforcement plate; 12. Limiting plate; 13. Clamping pad; 14. Boss; 15. Support plate; 16. Lifting rod. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] Reference Figure 1-4 , which is an embodiment of the utility model, provides a clamping device for installing a special coupling for oil drilling and production, and the clamping device for installing a special coupling for oil drilling and production comprises a lifting plate 1, a clamping base plate 2 is arranged above the lifting plate 1, two groups of pillars 3 are fixedly arranged on the upper end surface of the lifting plate 1, two groups of support springs 6 are fixedly arranged on the bottom of the clamping base plate 2, the support springs 6 are movably sleeved on the outer side of the pillars 3, a boss 14 is arranged in the middle of the pillars 3, the diameter of the boss 14 is larger than the diameter of the upper end of the pillars 3, and the support springs 6 pass through the pillars 3 and are movably arranged on the boss 14. Supports 4 are fixedly arranged on both sides of the clamping base plate 2, and reinforcing plates 11 are fixedly arranged on the sides of the two groups of supports 4 close to each other, and limit plates 12 are arranged above the two groups of reinforcing plates 11, and the limit plates 12 are V-shaped and fixedly installed on the upper end surface of the clamping base plate 2. A clamping rod 5 is rotatably arranged in both groups of supports 4, and the clamping rod 5 includes a clamping end 501 and a movable end 502. The two groups of clamping rods 5 are arranged opposite to each other, and a clamping pad 13 is rotatably arranged at the end of the clamping end 501 of the two groups of clamping rods 5. The contact surface of the clamping pad 13 is arc-shaped to better fit the outer surface of the coupling. A hydraulic cylinder A7 is arranged below the clamping base plate 2, and the hydraulic cylinder A7 is horizontally arranged. The output end and the end of the hydraulic cylinder A7 are respectively fixed with a rotating seat A9 and a rotating seat B10, and the rotating seat A9 and the rotating seat B10 are respectively rotatably connected to the ends of the movable ends 502 of the two groups of clamping rods 5. The end and the output end of the hydraulic cylinder A7 are rotatably connected to the clamping rod 5 to ensure that the hydraulic cylinder A7 makes the movable ends 502 of the two groups of clamping rods 5 move away from each other when extending, and the movable ends 502 move in an arc when moving away from each other, so that the hydraulic cylinder can automatically change the direction of the force on the output end.

[0023] A support plate 15 is provided below the lifting plate 1, and a hydraulic cylinder B8 and two sets of lifting rods 16 are fixedly provided on the support plate 15. The output end of the hydraulic cylinder is movably connected to the bottom of the lifting plate 1, and the top end of the lifting rod 16 is fixedly connected to the bottom of the lifting plate 1. The lifting rod 16 and the hydraulic cylinder B8 are installed on the same axis of the support plate 15, and the hydraulic cylinder B8 is arranged between the two sets of lifting rods 16, so that the height of the clamping bottom plate 2 can be adjusted according to different working conditions to adjust the clamping height of the coupling, which is convenient for the installation of the coupling.

[0024] During use, the coupling is placed on the clamping base plate 2. The coupling is restricted by the limit plate 12 and will not roll. The hydraulic cylinder A7 is started, and the output end of the hydraulic cylinder A7 is extended to make the movable ends 502 of the two sets of clamping rods 5 move away from each other. The clamping ends 501 of the two sets of clamping rods 5 are rotated toward the direction close to the limit plate 12 to clamp the coupling. The hydraulic cylinder B8 is started to lift the lifting plate 1 to a suitable height, and then the coupling and the pipeline are installed. The clamping base plate 2 and the lifting plate 1 are movably connected by the support spring 6. When there is a slight deviation between the axis of the coupling and the pipeline, the clamping base plate 2 can be manually adjusted to ensure that the pipeline can be smoothly screwed into the coupling, which reduces the physical labor of the workers and improves the installation efficiency and flexibility.

[0025] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A clamping device for installing a coupling specially used for oil drilling, comprising a lifting plate (1), characterized in that: A clamping base plate (2) is arranged above the lifting plate (1), two groups of pillars (3) are fixedly arranged on the upper end surface of the lifting plate (1), two groups of support springs (6) are fixedly arranged at the bottom of the clamping base plate (2), and the support springs (6) are movably sleeved on the outer sides of the pillars (3). Supports (4) are fixedly arranged on both sides of the clamping base plate (2), and clamping rods (5) are rotatably arranged in the two groups of supports (4). The clamping rods (5) include a clamping end (501) and a movable end (502). The two groups of clamping rods (5) are arranged opposite to each other. A hydraulic cylinder A (7) is arranged below the clamping base plate (2), and the hydraulic cylinder A (7) is arranged horizontally. The output end and the end of the hydraulic cylinder A (7) are respectively fixedly provided with a rotating seat A (9) and a rotating seat B (10), and the rotating seat A (9) and the rotating seat B (10) are respectively rotatably connected to the ends of the movable ends (502) of the two groups of clamping rods (5).

2. A clamping device for installing a special coupling for oil drilling according to claim 1, characterized in that: A reinforcing plate (11) is fixedly provided on the side where the two groups of supports (4) are close to each other, and a limiting plate (12) is provided above the two groups of reinforcing plates (11). The limiting plate (12) is V-shaped and is fixedly mounted on the upper end surface of the clamping bottom plate (2).

3. The clamping device for installing a special coupling for oil drilling according to claim 1, characterized in that: A clamping pad (13) is rotatably provided at the end of the clamping end (501) of the two groups of clamping rods (5), and the contact surface of the clamping pad (13) is arc-shaped.

4. The clamping device for installing a special coupling for oil drilling according to claim 1, characterized in that: A boss (14) is provided in the middle of the pillar (3); the diameter of the boss (14) is larger than the diameter of the upper end of the pillar (3); and the support spring (6) passes through the pillar (3) and is movably arranged on the boss (14).

5. The clamping device for installing a special coupling for oil drilling according to claim 1, characterized in that: A support plate (15) is provided below the lifting plate (1), and a hydraulic cylinder B (8) and two sets of lifting rods (16) are fixedly provided on the support plate (15); the output end of the hydraulic cylinder is movably connected to the bottom of the lifting plate (1), and the top end of the lifting rod (16) is fixedly connected to the bottom of the lifting plate (1).

6. The clamping device for installing a special coupling for oil drilling according to claim 5, characterized in that: The lifting rod (16) and the hydraulic cylinder B (8) are mounted on the same axis of the support plate (15), and the hydraulic cylinder B (8) is arranged between the two sets of lifting rods (16).

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