Rope jumping-free operation mechanism of petroleum workover rig

Abstract

The utility model relates to the technical field of workover devices, in particular to a rope jumping-free operation mechanism of a petroleum workover rig, which is characterized in that a base is arranged below a derrick, the base is hinged on a base, the base is arranged on the top surface of a bearing vehicle chassis, and the side wall of the derrick is hinged with the telescopic end of a lifting oil cylinder; the fixed end of the lifting oil cylinder is arranged on the top face of the chassis, hydraulic supporting legs are symmetrically arranged on a connecting beam on the bottom face of the chassis, the abutting plates are symmetrically arranged in a groove in the base, sliding seats are arranged below the abutting plates, the two sliding seats are both arranged on the two-way lead screw, the two-way lead screw is rotatably arranged in the groove, and the two ends of the two-way lead screw are connected with the hydraulic supporting legs. The ends, extending out of the base, of the two-way lead screws are connected with the motor, the hydraulic auxiliary legs are arranged on the abutting plate, and the foot plates are arranged on the hydraulic auxiliary legs. And the situation that when the petroleum workover rig without the guy rope works, the derrick collapses and topples due to the influence of external environment factors is reduced.

Description

Technical Field

[0001] This utility model relates to the field of well workover equipment technology, and in particular to a ropeless operation mechanism for oil well workover rigs. Background Technology

[0002] Oil well workover rigs are specialized mechanical devices used for maintaining and repairing oil wells during oilfield development. They are one of the most important pieces of equipment in the oil drilling and production industry. Their main function is to maintain, repair, and modify oil wells to ensure their normal production status.

[0003] Among them, ropeless oil well workover rigs have seen a significant increase in market share in recent years due to their convenience and efficiency, especially in specific regions and scenarios where they have become the mainstream choice. However, because the derrick is subjected to enormous tensile forces during operation, coupled with complex ground conditions and the influence of climatic factors, the derrick is at risk of collapse and tipping over, posing a significant safety hazard.

[0004] Therefore, how to provide a rope-free working mechanism for oil well workover rigs to reduce the occurrence of derrick collapses and topples during operation and improve the safety of engineering operations is an urgent technical problem to be solved. Utility Model Content

[0005] This utility model provides a ropeless operation mechanism for oil well workover rigs, which reduces the occurrence of derrick collapse and tipping due to external environmental factors during operation of oil well workover rigs without ropes.

[0006] This utility model provides a ropeless working mechanism for oil well workover rigs, comprising: a derrick, a base provided below the derrick, the base being hinged to a base, the base being provided on the top surface of a carrier chassis, the side wall of the derrick being hinged to the telescopic end of a lifting cylinder, the fixed end of the lifting cylinder being provided on the top surface of the chassis, and hydraulic support legs being symmetrically provided on the bottom connecting beam of the chassis;

[0007] The anti-tipping assembly includes a stop plate, hydraulic auxiliary legs, and a foot plate. The stop plate is symmetrically arranged in a groove on the base. A sliding seat is provided below the stop plate. Both sliding seats are mounted on a two-way lead screw. The two-way lead screw is rotatably mounted in the groove, and one end of the two-way lead screw extending out of the base is connected to a motor. The hydraulic auxiliary legs are mounted on the stop plate, and the foot plate is mounted on the hydraulic auxiliary legs.

[0008] In one possible implementation, a support rod is hinged to the side wall of the groove. When the derrick is in the unfolded state, one end of the abutment plate abuts against the base, and the other end of the abutment plate abuts against the support rod.

[0009] In one possible implementation, a positioning hole is provided on the side wall of the abutment plate, and a positioning pin is provided on the support rod, wherein the positioning pin is adapted to the positioning hole.

[0010] In one possible implementation, a movable block is provided on the bidirectional lead screw, and a linkage rod is provided on the movable block. The linkage rod passes through a through hole in the side wall of the base and is hinged to a driven block on the support rod. The driven block is slidably disposed in a driven groove on the support rod.

[0011] In one possible implementation, the bottom surface of the foot plate is provided with raised teeth, and conical protrusions are provided between the raised teeth.

[0012] In one possible implementation, the abutment plate is provided with a slider, the groove is provided with a sliding groove, and the abutment plate is slidably connected to the base through the slider.

[0013] In one possible implementation, a guide block is provided on the side wall of the base, and a guide groove is provided on the side wall of the abutment plate, with the guide groove corresponding to the position of the guide block.

[0014] In one possible implementation, a fixing block is provided on the top surface of the chassis, and the end of the bidirectional lead screw away from the motor passes through the base and is rotatably mounted on the side wall of the fixing block.

[0015] In one possible implementation, a rubber pad is provided on the abutment plate, and the rubber pad is in contact with the outer side wall of the base.

[0016] In one possible implementation, a support frame is provided on the top surface of the chassis, on the side away from the base, the support frame being used to support the derrick in its stowed state.

[0017] The beneficial effects of this utility model are as follows: First, the carrier is parked in the required area, the hydraulic support legs are extended, and the carrier is secured. Then, the lifting cylinder is activated, which pushes the derrick, raising it and causing the base to rotate on the pedestal until it reaches the preset position. Next, the motor is activated, rotating the bidirectional lead screw, causing the abutment plates to move towards each other within the grooves on the pedestal, clamping the base. Finally, the hydraulic auxiliary legs are extended to further secure the pedestal. By reinforcing the derrick with the anti-tipping component, the stability of the derrick setup is enhanced to cope with harsh environments such as strong winds, reducing the likelihood of derrick collapse or tipping due to external environmental factors during operation of oil workover rigs without traction ropes. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the storage state of a ropeless working mechanism for an oil well workover rig according to this utility model.

[0020] Figure 2 This is a perspective view of the unfolded state of a ropeless working mechanism for an oil well workover rig according to this utility model.

[0021] Figure 3 This is an exploded perspective view of the base and foundation of a ropeless working mechanism for an oil well workover rig according to this utility model.

[0022] Figure 4 This is a cross-sectional perspective view of the base of a ropeless working mechanism for an oil well workover rig according to the present invention.

[0023] Figure 5 This is a cross-sectional front view of the base of the non-rope-jumping working mechanism of an oil well workover rig according to the present invention;

[0024] Figure 6 This is an enlarged perspective view of area A of the ropeless working mechanism of an oil well workover rig according to the present invention.

[0025] Figure 7 This is an enlarged cross-sectional front view of area B of the non-rope-jumping working mechanism of an oil well workover rig according to the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Derrick; 2. Base; 3. Base; 4. Chassis; 5. Lifting Cylinder; 6. Hydraulic Support Leg; 7. Anti-tipping Component; 701. Abutment Plate; 702. Hydraulic Auxiliary Leg; 703. Foot Plate; 8. Groove; 9. Sliding Seat; 10. Two-way Lead Screw; 11. Motor; 12. Support Rod; 13. Positioning Hole; 14. Positioning Pin; 15. Moving Block; 16. Linkage Rod; 17. Through Hole; 18. Raised Tooth Pattern; 19. Conical Spike; 20. Sliding Block; 21. Slide Groove; 22. Guide Block; 23. Guide Groove; 24. Fixing Block; 25. Rubber Pad; 26. Support Frame; 27. Driven Block; 28. Driven Groove. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] See Figure 1 , Figure 2 and Figure 3This utility model provides a ropeless operation mechanism for oil well workover rigs, including: a derrick 1, a base 2 below the derrick 1, the base 2 being hinged to a base 3, the base 3 being mounted on the top surface of a carrier chassis 4, the side wall of the derrick 1 being hinged to the telescopic end of a lifting cylinder 5, the fixed end of the lifting cylinder 5 being mounted on the top surface of the chassis 4, hydraulic support legs 6 being symmetrically arranged on the bottom connecting beam of the chassis 4, and an anti-tipping assembly 7 including an abutment plate 701, hydraulic auxiliary legs 702, and a foot plate 703. The abutment plates 701 are symmetrically arranged in grooves 8 on the base 3, and sliding seats 9 are arranged below the abutment plates 701. Both sliding seats 9 are mounted on a two-way lead screw 10, which is rotatably mounted in the groove 8, and one end of the two-way lead screw 10 extending out of the base 3 is connected to a motor 11. The hydraulic auxiliary legs 702 are mounted on the abutment plates 701, and the foot plate 703 is mounted on the hydraulic auxiliary legs 702.

[0032] Preferably, a support frame 26 is provided on the top surface of the chassis 4 on the side away from the base 3. The support frame 26 is used to support the derrick 1 in the stored state.

[0033] The anti-tipping components 7 are in two sets, symmetrically arranged on the base 3, and the grooves 8 are in two places, symmetrically arranged on both sides of the top surface of the base 3. Sliding seats 9 are connected below the abutment plate 701. The two sliding seats 9 have internal threads corresponding to the bidirectional lead screw 10. The two sliding seats 9 are located within the two threaded areas of the bidirectional lead screw 10, and move towards or away from each other as the bidirectional lead screw 10 rotates. Preferably, the hydraulic auxiliary leg 702 can rotate horizontally around the abutment plate 701, improving the adaptability of this application in complex terrain.

[0034] Specifically, first, the carrier vehicle is parked in the required area, the hydraulic support legs 6 are extended and brought into contact with the ground to secure the carrier vehicle. Then, the lifting cylinder 5 is activated, which pushes the derrick 1, raising it and causing the base 2 to rotate on the base 3 until it reaches the preset position. Next, the motor 11 is activated, rotating the bidirectional lead screw 10. The abutment plate 701 moves towards each other within the groove 8 on the base 3, clamping the base 2. Finally, the hydraulic auxiliary legs 702 are extended, and their foot plates 703 contact the ground, further securing the base 3.

[0035] It should be noted that the hydraulic support leg 6, the hydraulic auxiliary leg 702, and the lifting cylinder 5 are all multi-stage composite motion hydraulic cylinders, which satisfy both horizontal width expansion and vertical height support. Their specific motion modes, working principles, and methods of controlling their motion are all technologies known to those skilled in the art, and will not be elaborated here. Multiple hydraulic support legs 6 can be symmetrically arranged on the bottom connecting beam of the chassis 4 as needed. Preferably, two hydraulic support legs 6 are arranged on each side of the connecting beam.

[0036] See Figure 4 and Figure 5 In some embodiments, a support rod 12 is hinged to the side wall of the groove 8. When the derrick 1 is in the unfolded state, one end of the side wall of the abutment plate 701 abuts against the base 2, and the other end of the side wall of the abutment plate 701 abuts against the support rod 12.

[0037] The base 2 and the base 3 are reinforced and connected by the support rod 12. When the derrick 1 is disturbed by external environmental factors such as wind, the force generated can be better transmitted to the hydraulic auxiliary leg 702, and then to the hydraulic support leg 6 through the base 3 and the chassis 4, and finally to the ground.

[0038] In some embodiments, a positioning hole 13 is provided on the side wall of the abutment plate 701, and a positioning pin 14 is provided on the support rod 12, with the positioning pin 14 and the positioning hole 13 being mutually adapted. The cooperation between the positioning pin 14 and the positioning hole 13 makes the connection between the support rod 12 and the abutment plate 701 more secure when they abut against each other, thus enhancing the stability of the connection.

[0039] See Figure 7 In some embodiments, a movable block 15 is provided on the bidirectional lead screw 10, and a linkage rod 16 is provided on the movable block 15. The linkage rod 16 passes through a through hole 17 on the side wall of the base 3 and is hinged to a driven block 27 on the support rod 12. The driven block 27 is slidably disposed in a driven groove 28 on the support rod 12. Preferably, a fixed block 24 is provided on the top surface of the chassis 4, and the end of the bidirectional lead screw 10 away from the motor 11 passes through the base 3 and is rotatably disposed on the side wall of the fixed block 24.

[0040] The movable blocks 15 are located on both sides of the bidirectional lead screw 10 extending from the base 3. Movable blocks 15 are also located between the base 3 and the motor 11, and between the base 3 and the fixed block 24. Each movable block 15 has an internal thread corresponding to that of the bidirectional lead screw 10. The two movable blocks 15 are positioned within two threaded areas of the bidirectional lead screw 10. The two movable blocks 15 move towards or away from each other as the bidirectional lead screw 10 rotates. The internal threads of the movable blocks 15 are identical to the internal threads of the sliding seat 9. That is, the movable blocks 15 on the same side move in the same direction and distance as the sliding seat 9.

[0041] When the base 2 needs to be clamped, the bidirectional lead screw 10 rotates, the sliding seat 9 moves towards it, and the moving block 15 also moves towards it on the bidirectional lead screw 10. This causes the linkage rod 16 to pass through the through hole 17 and move towards the abutment plate 701 within the groove 8. The driven block 27 hinged to the linkage rod 16 slides within the driven groove 28, causing the support rod 12 to rotate around the side wall of the groove 8 towards the abutment plate 701. The positioning pin 14 on the support rod 12 engages with the positioning hole 13 on the side wall of the abutment plate 701, thus fixing the abutment plate 701 to the base 3 through the support plate. This improves the stability of the abutment plate 701 clamping the base 2.

[0042] See Figure 6 In some embodiments, the bottom surface of the foot plate 703 is provided with raised teeth 18, and conical protrusions 19 are provided between the raised teeth 18. When the foot plate 703 contacts the ground, the conical protrusions 19 insert into the ground, and the raised teeth 18 increase the friction between the foot plate 703 and the ground. The number of conical protrusions 19 and raised teeth 18 can be set as needed, and this application does not limit the specific number.

[0043] In some embodiments, a slider 20 is provided on the abutment plate 701, and a groove 21 is provided in the groove 8. The abutment plate 701 is slidably connected to the base 3 through the slider 20. The cooperation between the slider 20 and the groove 21 reduces the friction generated when the abutment plate 701 slides in the groove 8 under the drive of the motor 11 and the bidirectional lead screw 10, making the sliding of the abutment plate 701 in the groove 8 more stable and the movement distance more precise.

[0044] In some embodiments, a guide block 22 is provided on the side wall of the base 2, and a guide groove 23 is provided on the side wall of the abutment plate 701, with the guide groove 23 corresponding to the guide block 22. The guide block 22 is disposed on the two side walls of the base 2. The cooperation between the guide block 22 and the guide groove 23 makes the clamping of the abutment plate 701 on the base 2 more precise, avoiding incomplete clamping. Furthermore, when the two abutment plates 701 clamp the base 2, the guide block 22 and the guide groove 23 form a tenon-and-mortise structure, increasing the stability of the connection between the abutment plate 701 and the base 2.

[0045] In some embodiments, a rubber pad 25 is provided on the abutment plate 701, and the rubber pad 25 is in contact with the outer side wall of the base 2. The rubber pad 25 provides a buffer between the abutment plate 701 and the base 2, absorbing the vibration generated during operation. Similarly, it also increases the contact area between the two, making the connection between the two more stable when the abutment plate 701 clamps the base 2.

[0046] It should be noted that, for ease of viewing, the steel wire rope required for the operation of the derrick 1 has been omitted from the attached diagram. Figures 3 to 7 The hinge end connecting the top surface of the base 3 to the base 2 is omitted.

[0047] Work process

[0048] First, park the carrier vehicle in the required area, extend the hydraulic support legs 6 and make them contact the ground to secure the carrier vehicle. Then, activate the lifting cylinder 5, which pushes the derrick 1, causing one side of the derrick 1 to move away from the support frame 26. The base 2 under the derrick 1 rotates on the base 3 until the base 2 rotates to the preset position.

[0049] Next, start motor 11. Motor 11 rotates, driving the bidirectional lead screw 10 to rotate. The sliding seats 9 move towards each other, driving the slider 20 to slide in the slide groove 21. The abutment plate 701 moves towards each other in the groove 8 on the base 3. The guide block 22 is inserted into the guide groove 23. The rubber pad 25 abuts against the side wall of the base 2. The abutment plate 701 completes the clamping of the base 2.

[0050] Synchronously, the bidirectional lead screw 10 rotates, causing two moving blocks 15 to move towards each other on the bidirectional lead screw 10. The linkage rod 16 moves synchronously. The driven block 27, which is hinged to one end of the linkage rod 16 through the through hole 17, slides in the driven groove 28, causing the support rod 12 to rotate around the side wall of the groove 8 toward the abutment plate 701. The positioning pin 14 on the support rod 12 is engaged in the positioning hole 13 on the side wall of the abutment plate 701.

[0051] Finally, the hydraulic auxiliary leg 702 is extended, and the foot plate 703 on it contacts the ground. The conical protrusion 19 is inserted into the ground, and the serrated pattern 18 increases the friction between the foot plate 703 and the ground, further fixing the base 3 to the bottom surface.

[0052] In the above embodiments, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0053] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "method," "specific method," or "some methods," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or method is included in at least one embodiment or method of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or method. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or methods. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or methods described in this specification, as well as the features of different embodiments or methods.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A ropeless working mechanism for oil well workover rigs, characterized in that, include: The derrick has a base at its bottom, which is hinged to a base. The base is set on the top surface of the chassis of the carrier vehicle. The side wall of the derrick is hinged to the telescopic end of the lifting cylinder. The fixed end of the lifting cylinder is set on the top surface of the chassis. Hydraulic support legs are symmetrically arranged on the bottom connecting beam of the chassis. The anti-tipping assembly includes a stop plate, hydraulic auxiliary legs, and a foot plate. The stop plate is symmetrically arranged in a groove on the base. A sliding seat is provided below the stop plate. Both sliding seats are mounted on a two-way lead screw. The two-way lead screw is rotatably mounted in the groove, and one end of the two-way lead screw extending out of the base is connected to a motor. The hydraulic auxiliary legs are mounted on the stop plate, and the foot plate is mounted on the hydraulic auxiliary legs.

2. The ropeless workover mechanism for oil well workover rigs according to claim 1, characterized in that, A support rod is hinged to the side wall of the groove. When the derrick is in the unfolded state, one end of the abutment plate abuts against the base, and the other end of the abutment plate abuts against the support rod.

3. The ropeless workover mechanism for oil well workover rigs according to claim 2, characterized in that, The side wall of the abutment plate is provided with a positioning hole, and the support rod is provided with a positioning pin, which is compatible with the positioning hole.

4. The ropeless workover mechanism for oil well workover rigs according to claim 3, characterized in that, A movable block is provided on the bidirectional lead screw, and a linkage rod is provided on the movable block. The linkage rod passes through a through hole in the side wall of the base and is hinged to a driven block on the support rod. The driven block is slidably disposed in a driven groove on the support rod.

5. The ropeless workover mechanism for oil well workover rigs according to claim 4, characterized in that, The bottom surface of the foot plate is provided with raised teeth, and conical protrusions are provided between the raised teeth.

6. The ropeless workover mechanism for oil well workover rigs according to claim 5, characterized in that, The abutment plate is provided with a slider, and the groove is provided with a sliding groove. The abutment plate is slidably connected to the base through the slider.

7. The ropeless workover mechanism for oil well workover rigs according to claim 6, characterized in that, A guide block is provided on the side wall of the base, and a guide groove is provided on the side wall of the abutment plate, with the guide groove corresponding to the position of the guide block.

8. The ropeless workover mechanism for oil well workover rigs according to claim 7, characterized in that, A fixing block is provided on the top surface of the chassis of the carrier vehicle. The end of the bidirectional lead screw away from the motor passes through the base and is rotatably mounted on the side wall of the fixing block.

9. The ropeless workover mechanism for oil well workover rigs according to claim 8, characterized in that, A rubber pad is provided on the abutment plate, and the rubber pad is in contact with the outer side wall of the base.

10. The ropeless workover mechanism for oil well workover rigs according to claim 9, characterized in that, On the top surface of the chassis, a support frame is provided on the side away from the base, the support frame being used to support the derrick in its stowed state.

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