Hydraulic safety interlocking mechanism of sleeve power tongs

Abstract

The utility model discloses a hydraulic safety interlocking mechanism of casing pipe power tongs, which comprises a lifting component, a limit fixing component, a casing pipe power tongs body and moving translation components, the limit fixing component is arranged in an inner cavity of the lifting component, and the moving translation components are arranged on two sides of the bottom of the limit fixing component. The casing pipe power tong body is arranged at the bottom of the movable translation assembly. The hydraulic safety interlocking mechanism of the casing pipe power tongs has the advantages of being high in safety and capable of preventing shaking, and solves the problems that pipelines are fixed by the power tongs for oil field casing pipes through hoisting generally, but when the pipelines are hoisted and fixed, steel wire ropes of the power tongs are stressed and shake frequently, the pipelines collide with one another due to large shaking, and the safety of the pipelines is affected. The problem that the safety is reduced due to the fact that limiting assemblies are not arranged on the two sides of the lifting device, the lifting device needs to be lifted when not used, and therefore the safety of the lifting device is reduced is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of casing power tongs, in particular to a hydraulic safety interlocking mechanism of a casing power tong. Background Art

[0002] The hydraulic safety interlock mechanism of the casing power tong is a device used to improve the safety of casing running operations in oil fields. It prevents injuries to operators caused by misoperation through a specific hydraulic system design. This mechanism usually includes components such as a double-opening protective door, a door switch valve, a manual reversing valve, a motor valve group and a hydraulic motor. The double-opening protective door is installed at the tong head opening of the casing power tong, the door switch valve is set on the double-opening protective door, and the motor valve group is installed between the manual reversing valve and the hydraulic motor. These components are interconnected through hydraulic pipelines to form a complete hydraulic system. In this way, the mechanism can achieve the goal of preventing misoperation and improving operation safety.

[0003] After testing, in the existing technology, the Chinese patent number is: CN210178302U, and the publication date is: 2020-03-24, which discloses a hydraulic safety interlock mechanism of a double-door casing power tong, including a double-door protective door, a door switch valve, a manual reversing valve, a motor valve group, and a hydraulic motor. The double-door protective door is installed at the clamp head opening of the casing power tong, and the door switch valve is arranged on the double-door protective door. The motor valve group is installed between the manual reversing valve and the hydraulic motor. The oil ports of the door switch valve, the motor valve group and the manual reversing valve are interconnected through hydraulic pipelines. The hydraulic safety interlock mechanism of the double-door casing power tong described in the utility model has the advantages of preventing harm to operators due to misoperation and improving the safety of casing operations in oil fields.

[0004] The above structure also has the following defects:

[0005] Oilfield casing power tongs are generally used to fix the pipeline by hoisting. However, when hoisting and fixing the pipeline, the wire rope often shakes under the force, and large shaking can cause the pipelines to collide with each other, which can seriously cause personal injury to the operator. At the same time, when not in use, it needs to be hoisted. Since there are no limit components on both sides, its safety is reduced. Therefore, a hydraulic safety interlock mechanism for the casing power tong is urgently needed to overcome the above defects. Utility Model Content

[0006] The purpose of the utility model is to provide a hydraulic safety interlock mechanism for a casing power tong, which has the advantages of high safety and anti-swaying, so as to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydraulic safety interlocking mechanism of a casing power tong, comprising a lifting assembly, a limit fixing assembly, a casing power tong body and a movable translation assembly, wherein the limit fixing assembly is arranged in the inner cavity of the lifting assembly, the movable translation assemblies are arranged on both sides of the bottom of the limit fixing assembly, the casing power tong body is arranged at the bottom of the movable translation assembly, the lifting assembly comprises a first motor, a mounting frame, a winding roller, a wire rope body, a positioning sleeve and a mounting base, the movable translation assembly comprises a positioning block, a second motor, a second slide groove, a second slider and a threaded rod, the limit fixing assembly comprises an L-shaped clamping rod, a cylinder, a mounting frame, a first slider, a positioning groove and a first slide groove The first motor is fixedly mounted on the top of the right side of the mounting frame, the winding roller rotates on the top of the inner cavity of the mounting frame through a bearing, the wire rope body is wound around the surface of the winding roller, the mounting frame is arranged at the bottom of the positioning sleeve, the first slide grooves are opened on both sides of the inner cavity of the mounting frame, the L-shaped clamping rods are fixedly mounted on both sides of the front and back of the mounting frame, the cylinder is fixedly mounted on the side relatively far away from the L-shaped clamping rod, the second motor is fixedly mounted on the front of the positioning block, the second slide groove is opened at the bottom of the positioning block, the second slider slides inside the second slide groove, the bottom of the second slider is fixedly connected to the top of the casing power clamp body, and the mounting bases are fixedly mounted on both sides of the bottom of the mounting frame.

[0008] Furthermore, the positioning sleeve is arranged at the bottom of the winding roller, and two sides of the positioning sleeve are fixedly connected to the inner cavity of the mounting frame.

[0009] Furthermore, the bottom of the steel wire rope body passes through the bottom of the positioning sleeve and is fixedly connected to the top of the mounting bracket.

[0010] Furthermore, the first sliding block slides in the inner cavity of the first sliding groove, and the relatively close side of the first sliding block is fixedly connected to two sides of the mounting bracket.

[0011] Furthermore, the positioning grooves are evenly arranged on both sides of the front and back of the installation frame, and the relatively close side of the cylinder passes through the positioning groove to the interior of the installation frame.

[0012] Furthermore, the top of the positioning block is fixedly connected to the bottom of the mounting bracket, and the threaded rod is rotatably connected to the inside of the second sliding block through threads.

[0013] Furthermore, the output shaft of the second motor passes through the inner cavity of the second slide groove and is fixedly connected to the front side of the threaded rod, and the output shaft of the first motor passes through the inner cavity of the mounting frame and is fixedly connected to the right side of the winding roller.

[0014] In summary, due to the adoption of the above technology, the beneficial effects of the utility model are:

[0015] The utility model mainly adjusts the position of the limit fixing component and the casing power tong body by setting a lifting component, mainly adjusts the lateral position of the casing power tong body by setting a moving translation component, and fixes both sides of the casing power tong body by setting a limit fixing component to prevent it from shaking during work. When in use, the first motor is turned on according to its height, and the winding roller is driven to rotate by the first motor. Under the action of the winding roller, the wire rope body drives the mounting frame and the first slider to move downward, thereby adjusting the position height of the casing power tong body. After adjusting to the specified position, the cylinder is then turned on, and the cylinder passes through the positioning groove to the inside of the mounting frame. , thereby limiting the two sides of the casing power tong body, and turning on the second motor after limiting, and driving the threaded rod to rotate by the second motor, so that the second slider drives the casing power tong body to move forward, and fixes the pipeline under the action of the casing power tong body, which has the advantages of high safety and anti-swaying, and solves the problem that the casing power tongs in the oil field are generally used to fix the pipeline by hoisting, but when hoisting and fixing the pipeline, the wire rope often shakes under the force, and the larger shaking will cause the pipelines to collide with each other, which may cause personal injury to the operator in serious cases. At the same time, it needs to be hoisted when not in use, and since there are no limit components on both sides, its safety is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the mobile translation component of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the limiting and fixing component of the utility model;

[0019] Figure 4 This is a schematic diagram of the top view of the structure of the utility model;

[0020] Figure 5 For this utility model Figure 4 A partial enlarged view of point A in the middle.

[0021] In the figure: 1. Lifting assembly; 11. First motor; 12. Mounting frame; 13. Winding roller; 14. Wire rope body; 15. Positioning sleeve; 16. Mounting base; 2. Positioning fixing assembly; 21. L-shaped clamp; 22. Cylinder; 23. Mounting frame; 24. First slider; 25. Positioning groove; 26. First slide groove; 3. Casing power clamp body; 4. Moving translation assembly; 41. Positioning block; 42. Second motor; 43. Second slide groove; 44. Second slider; 45. Threaded rod. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] The utility model provides Figure 1-5 As shown, a hydraulic safety interlock mechanism of a casing power tong includes a lifting component 1, a limit fixing component 2, a casing power tong body 3 and a moving translation component 4, the limit fixing component 2 is arranged in the inner cavity of the lifting component 1, the moving translation components 4 are arranged on both sides of the bottom of the limit fixing component 2, the casing power tong body 3 is arranged at the bottom of the moving translation component 4, the lifting component 1 includes a first motor 11, a mounting frame 12, a winding roller 13, a wire rope body 14, a positioning sleeve 15 and a mounting base 16, the moving translation component 4 includes a positioning block 41, a second motor 42, a second slide 43, a second slider 44 and a threaded rod 45, the limit fixing component 2 includes an L-shaped card rod 21, a cylinder 22, a mounting frame 23, a first slider 24, a positioning groove 25 and a first slide 26, the first motor 11 The wire rope body 14 is wound around the surface of the winding roller 13 and the mounting frame 23 is arranged at the bottom of the positioning sleeve 15. The first slide grooves 26 are both provided on both sides of the inner cavity of the mounting frame 12. The L-shaped clamping rods 21 are both fixedly mounted on both sides of the front and back of the mounting frame 23. The cylinder 22 is fixedly mounted on the side relatively far away from the L-shaped clamping rod 21. The second motor 42 is fixedly mounted on the front side of the positioning block 41. The second slide groove 43 is provided at the bottom of the positioning block 41. The second slider 44 slides inside the second slide groove 43. The bottom of the second slider 44 is fixedly connected to the top of the casing power clamp body 3. The mounting base 16 is both fixedly mounted on both sides of the bottom of the mounting frame 12.

[0024] More specifically, a limit fixing assembly 2 is provided to fix both sides of the casing power tongs body 3 to prevent it from shaking during operation. When in use, the first motor 11 is turned on according to its height, and the winding roller 13 is driven to rotate by the first motor 11. Under the action of the winding roller 13, the wire rope body 14 drives the mounting frame 23 and the first slider 24 to move downward, thereby adjusting the position height of the casing power tongs body 3. After adjusting to the specified position, the cylinder 22 is then turned on, and the cylinder 22 passes through the interior of the mounting frame 12 through the positioning groove 25, thereby limiting both sides of the casing power tongs body 3. After limiting, the second motor 42 is turned on, and the threaded rod 45 is driven to rotate by the second motor 42, so that the second slider 44 drives the casing power tongs body 3 to move toward the front, and fixes the pipeline under the action of the casing power tongs body 3, which has the advantages of high safety and anti-shaking.

[0025] In some embodiments, the positioning sleeve 15 is arranged at the bottom of the winding roller 13, and the two sides of the positioning sleeve 15 are fixedly connected to the inner cavity of the mounting frame 12. More specifically, the positioning sleeve 15 is provided to limit the wire rope body 14 to prevent the wire rope body 14 from knotting during winding.

[0026] In some embodiments, the bottom of the wire rope body 14 passes through the bottom of the positioning sleeve 15 and is fixedly connected to the top of the mounting bracket 23. More specifically, the position of the mounting bracket 23 is adjusted by setting the wire rope body 14.

[0027] In some embodiments, the first slider 24 slides in the inner cavity of the first slide groove 26, and the relatively close side of the first slider 24 is fixedly connected to the two sides of the mounting bracket 23. More specifically, the first slide groove 26 is provided to limit the first slider 24 to prevent the first slider 24 from shaking during the movement, and the first slider 24 is provided to limit the mounting bracket 23 to prevent the mounting bracket 23 from shaking during the movement.

[0028] In some embodiments, the positioning grooves 25 are evenly arranged on both sides of the front and back of the mounting frame 12, and the relatively close side of the cylinder 22 passes through the positioning groove 25 to the interior of the mounting frame 12. More specifically, by setting the positioning grooves 25, the inner side of the cylinder 22 is limited, and the two sides of the mounting frame 23 are indirectly fixed.

[0029] In some embodiments, the top of the positioning block 41 is fixedly connected to the bottom of the mounting bracket 23, and the threaded rod 45 is connected to the inside of the second slider 44 by threaded rotation. More specifically, the second slide groove 43 is provided to limit the second slider 44 to prevent the second slider 44 from shaking during movement. The second slider 44 is used to limit the casing power tong body 3 to prevent the casing power tong body 3 from shaking during movement.

[0030] In some embodiments, the output shaft of the second motor 42 passes through the inner cavity of the second slide groove 43 and is fixedly connected to the front of the threaded rod 45, and the output shaft of the first motor 11 passes through the inner cavity of the mounting frame 12 and is fixedly connected to the right side of the winding roller 13. More specifically, by setting the second motor 42 to drive the threaded rod 45, the position of the second slider 44 is indirectly adjusted.

[0031] Working principle:

[0032] Step 1: When in use, the first motor 11 is turned on according to its height, and the winding roller 13 is driven to rotate by the first motor 11. Under the action of the winding roller 13, the wire rope body 14 drives the mounting bracket 23 and the first slider 24 to move downward, thereby adjusting the position and height of the casing power tong body 3;

[0033] Step 2: After adjusting to the specified position, the cylinder 22 is then turned on. The cylinder 22 passes through the positioning groove 25 to the inside of the mounting frame 12, thereby limiting the two sides of the casing power tong body 3. After limiting, the second motor 42 is turned on, and the second motor 42 drives the threaded rod 45 to rotate, so that the second slider 44 drives the casing power tong body 3 to move toward the front, and the pipeline is fixed under the action of the casing power tong body 3, which has the advantages of high safety and anti-shaking.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A hydraulic safety interlock mechanism for a casing power tong, characterized by: The invention comprises a lifting assembly (1), a position-limiting and fixing assembly (2), a casing power tong body (3) and a moving and translating assembly (4), wherein the position-limiting and fixing assembly (2) is arranged in the inner cavity of the lifting assembly (1), the moving and translating assemblies (4) are arranged on both sides of the bottom of the position-limiting and fixing assembly (2), the casing power tong body (3) is arranged at the bottom of the moving and translating assembly (4), the lifting assembly (1) comprises a first motor (11), a mounting frame (12), a winding roller (13), a wire rope body (14), a positioning sleeve (15) and a mounting base (16), the moving and translating assembly (4) comprises a positioning block (41), a second motor (42), a second slide groove (43), a second slider (44) and a threaded rod (45), the position-limiting and fixing assembly (2) comprises an L-shaped clamping rod (21), a cylinder (22), a mounting frame (23), a first slider (24), a positioning groove (25) and a first slide groove (26), the first motor (11) is fixedly mounted The utility model is installed at the top of the right side of the mounting frame (12), the winding roller (13) rotates at the top of the inner cavity of the mounting frame (12) through a bearing, the wire rope body (14) is wound on the surface of the winding roller (13), the mounting frame (23) is arranged at the bottom of the positioning sleeve (15), the first slide groove (26) is opened on both sides of the inner cavity of the mounting frame (12), the L-shaped clamping rod (21) is fixedly installed on both sides of the front and back of the mounting frame (23), the cylinder (22) is fixedly installed on the side relatively far away from the L-shaped clamping rod (21), the second motor (42) is fixedly installed on the front of the positioning block (41), the second slide groove (43) is opened at the bottom of the positioning block (41), the second slider (44) slides inside the second slide groove (43), the bottom of the second slider (44) is fixedly connected to the top of the casing power clamp body (3), and the mounting base (16) is fixedly installed on both sides of the bottom of the mounting frame (12).

2. The hydraulic safety interlock mechanism of the casing power tong according to claim 1, characterized in that: The positioning sleeve (15) is arranged at the bottom of the winding roller (13), and both sides of the positioning sleeve (15) are fixedly connected to the inner cavity of the mounting frame (12).

3. The hydraulic safety interlock mechanism of the casing power tong according to claim 1, characterized in that: The bottom of the steel wire rope body (14) passes through the bottom of the positioning sleeve (15) and is fixedly connected to the top of the mounting frame (23).

4. The hydraulic safety interlock mechanism of the casing power tong according to claim 1, characterized in that: The first sliding block (24) slides in the inner cavity of the first sliding groove (26), and the relatively close side of the first sliding block (24) is fixedly connected to the two sides of the mounting frame (23).

5. The hydraulic safety interlock mechanism of the casing power tong according to claim 1, characterized in that: The positioning grooves (25) are evenly arranged on both sides of the front and back of the installation frame (12), and the relatively close side of the cylinder (22) passes through the positioning groove (25) to the inside of the installation frame (12).

6. The hydraulic safety interlock mechanism of the casing power tong according to claim 1, characterized in that: The top of the positioning block (41) is fixedly connected to the bottom of the mounting frame (23), and the threaded rod (45) is rotatably connected to the inside of the second sliding block (44) through a thread.

7. The hydraulic safety interlock mechanism of the casing power tong according to claim 1, characterized in that: The output shaft of the second motor (42) passes through the inner cavity of the second slide groove (43) and is fixedly connected to the front of the threaded rod (45), and the output shaft of the first motor (11) passes through the inner cavity of the mounting frame (12) and is fixedly connected to the right side of the winding roller (13).

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