Derrick for full-hydraulic workover rig

Abstract

The utility model belongs to the technical field of workover rigs, and particularly relates to a derrick for a full-hydraulic workover rig, which comprises a workover rig derrick, four grooves are formed in the side wall of the workover rig derrick, hydraulic supporting legs are connected to the inner walls of the four grooves in a clamping manner, connecting plates are mounted at the output ends of the four hydraulic supporting legs, and the connecting plates are connected with the hydraulic supporting legs in a clamping manner. A telescopic assembly is arranged between every two adjacent connecting plates, each telescopic assembly comprises a main rod, a first sliding rod, a second sliding rod and a third sliding rod, the first sliding rods are slidably connected to the inner walls of the corresponding main rods, and the second sliding rods are slidably connected to the inner walls of the corresponding first sliding rods; the four hydraulic supporting legs are connected together through the four telescopic assemblies to form an overall structure, the synergistic effect among the four hydraulic supporting legs is enhanced, the whole supporting system is firmer, external force interference from different directions can be better resisted, and therefore the overall stability of the derrick can be improved; and serious inclination of the derrick is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of well repair machines, and in particular relates to a derrick for a full hydraulic well repair machine. Background Art

[0002] The fully hydraulic workover rig derrick is a device used in oil and gas drilling operations. It is mainly used to carry and support drill pipes, drill bits and other drilling equipment, and provide a stable support structure for the drilling process. The hydraulic system provides hydraulic energy through a hydraulic pump, which in turn drives various hydraulic actuators, such as hydraulic cylinders and hydraulic motors.

[0003] When in use, the derrick is vertically above the wellhead. The derrick usually uses hydraulic support legs for auxiliary support so that the derrick can be stably maintained in a vertical state. However, when the weight borne by the derrick exceeds its designed bearing capacity, it may tilt due to inability to bear the load, and the derrick may suffer from structural fatigue, rust, damage, etc. during long-term use, gradually weakening its stability and eventually causing it to tilt. At this time, the hydraulic support legs are very critical, but the distribution positions of traditional hydraulic support legs are scattered, and the supporting directions of each hydraulic support leg are different. When the derrick tilts to one side, the unidirectional force-bearing hydraulic support legs sometimes have insufficient supporting force, which can easily cause the derrick to tilt seriously and easily cause damage to the hydraulic support legs, making it impossible for the derrick to perform subsequent related operations such as well repair, affecting production progress and efficiency, and increasing safety hazards at the construction site. Utility Model Content

[0004] The utility model provides a derrick for a fully hydraulic workover machine, which has the characteristic of improving the support stability of the derrick by hydraulic support legs.

[0005] The utility model provides the following technical scheme: it includes a derrick of a well repairing rig, and the side wall of the derrick of the well repairing rig is provided with four grooves, the inner walls of the four grooves are all snap-connected with hydraulic support legs, the output ends of the four hydraulic support legs are all equipped with connecting plates, and a telescopic component is arranged between two adjacent connecting plates, and the telescopic component includes a main rod, a first sliding rod, a second sliding rod and a third sliding rod, the first sliding rod is slidably connected to the corresponding inner wall of the main rod, the second sliding rod is slidably connected to the corresponding inner wall of the first sliding rod, and the third sliding rod is slidably connected to the corresponding inner wall of the second sliding rod, and one side of the first sliding rod, the second sliding rod and the third sliding rod are all provided with a clearance groove, the inner wall of the clearance groove is rotatably connected with a gear, the gear is meshed and connected to the corresponding main rod, the first sliding rod or the inner wall of the second sliding rod, and a limiting card plate is arranged on one side of the gear, and the limiting card plate is slidably connected to the corresponding inner wall of the first sliding rod, the second sliding rod or the third sliding rod.

[0006] Among them, two support ears are fixedly connected to the four sides of the well repair rig derrick, the hydraulic support leg is rotatably connected between the corresponding two support ears, the inner walls of the four grooves are all provided with inner grooves, the inner walls of the inner grooves are installed with angle adjustment push rods, and one end of the angle adjustment push rod is hinged to the corresponding side wall of the hydraulic support leg.

[0007] Wherein, the side walls of the first sliding rod, the second sliding rod and the third sliding rod are all fixedly connected with rectangular rings, and the rectangular rings correspond to the size of the main rod.

[0008] Among them, one end of the main rod and the third sliding rod are both rotatably connected to a connecting rod, both sides of the connecting plate are rotatably connected to a limiting rod, and the connecting rod is rotatably connected to the corresponding inner wall of the limiting rod.

[0009] Among them, a magnetic plate is fixedly connected to one side of the limit card plate, two springs are fixedly connected to one side of the magnetic plate, and an electric suction plate is arranged on one side of the limit card plate. Several of the electric suction plates are respectively installed on the corresponding first slide bar, the second slide bar and the inner wall of the third slide bar, and the first slide bar, the second slide bar and the inner wall of the third slide bar are all fixedly connected with two guide rods corresponding to the position of the magnetic plate.

[0010] The beneficial effect of the utility model is that the four hydraulic support legs are connected together by four telescopic components to form an integral structure, thereby enhancing the synergy between the four hydraulic support legs, making the entire support system more solid and better able to resist external force interference from different directions, thereby helping to improve the overall stability of the derrick, reduce the occurrence of severe derrick tilting, reduce damage to a single hydraulic support leg, and enable the derrick of the workover rig to subsequently carry out well workover and other related operations normally, maintain production progress and efficiency, and reduce safety hazards at the construction site.

[0011] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in a top view in an unfolded state;

[0014] Figure 3 for Figure 2 The enlarged schematic diagram of the middle A part;

[0015] Figure 4 It is a schematic diagram of a top cross-sectional structure of the telescopic component in the utility model;

[0016] Figure 5It is a side view cross-sectional enlarged structural schematic diagram of the hydraulic telescopic support leg and the angle-adjustable hydraulic telescopic rod in the utility model.

[0017] In the figure: 1. derrick of the well repair rig; 11. groove; 12. support ear; 13. inner groove; 14. angle adjustment push rod; 2. hydraulic support leg; 21. connecting plate; 22. limit rod; 3. telescopic assembly; 31. main rod; 32. first slide rod; 33. second slide rod; 34. third slide rod; 35. rectangular ring; 36. make way groove; 37. connecting rod; 4. gear; 41. limit card plate; 411. magnetic plate; 42. spring; 43. electric suction plate; 44. guide rod. DETAILED DESCRIPTION

[0018] See also Figure 1-Figure 5 The utility model provides the following technical solutions: including a workover derrick 1, the side wall of the workover derrick 1 is provided with four grooves 11, the inner walls of the four grooves 11 are all connected with hydraulic support legs 2, the output ends of the four hydraulic support legs 2 are all installed with connecting plates 21, and a telescopic assembly 3 is arranged between two adjacent connecting plates 21, and the telescopic assembly 3 includes a main rod 31, a first sliding rod 32, a second sliding rod 33 and a third sliding rod 34, the first sliding rod 32 is slidably connected to the inner wall of the corresponding main rod 31, and the second sliding rod 33 is slidably connected to the inner wall of the corresponding main rod 31. The third slide bar 34 is connected to the inner wall of the corresponding first slide bar 32, and is slidably connected to the inner wall of the corresponding second slide bar 33. A clearance groove 36 is provided on one side of the first slide bar 32, the second slide bar 33 and the third slide bar 34. A gear 4 is rotatably connected to the inner wall of the clearance groove 36. The gear 4 is meshed and connected to the corresponding main rod 31, the first slide bar 32 or the inner wall of the second slide bar 33. A limit card plate 41 is provided on one side of the gear 4. The limit card plate 41 is slidably connected to the inner wall of the corresponding first slide bar 32, the second slide bar 33 or the third slide bar 34.

[0019] In this embodiment: the workover derrick 1 makes way for the four hydraulic support legs 2 through four grooves 11, and the four grooves 11 are located at the four corners of the workover derrick 1. The four hydraulic support legs 2 support the workover derrick 1 when they are unfolded and extended. The hydraulic support legs 2 support the corresponding connecting plates 21. The telescopic component 3 connects the two connected connecting plates 21. The telescopic component 3 uses the main rod 31, the first sliding rod 32, the second sliding rod 33 and the third sliding rod 34 to form a connecting component with adjustable length. When the hydraulic support leg 2 is flipped upward, it is unfolded and tilted outward. By controlling the extension of the hydraulic support leg 2, the piston rod of the hydraulic support leg 2 can drive the connecting plate 21 to descend to the ground position. When the connecting plate 21 contacts the ground, it is affected by the ground. The support of the workover rig mast 1 is completed. At the same time, when the connecting plate 21 follows the expansion of the hydraulic support leg 2, the distance between the two adjacent connecting plates 21 changes, and the distance between the two connecting plates 21 gradually lengthens, so that the telescopic assembly 3 between the two connecting plates 21 is correspondingly lengthened. At this time, the first sliding rod 32 slides on the inner wall of the corresponding main rod 31, the second sliding rod 33 slides on the inner wall of the corresponding first sliding rod 32, and the third sliding rod 34 slides on the inner wall of the corresponding second sliding rod 33. The giving way groove 36 gives way to the corresponding gear 4. The first sliding rod 32, the second sliding rod 33 and the third sliding rod 34 drive the corresponding gear 4 to rotate when sliding. The main rod 31, the first sliding rod 32 and the second sliding rod 33 are all provided with meshing grooves corresponding to the gear 4. When After adjusting the length and angle of the hydraulic support leg 2, the limit card plate 41 is controlled to slide in the direction of the corresponding gear 4, so that the spring 42 can be stuck on the side wall of the gear 4, making the gear 4 unable to rotate, thereby maintaining a stable state between the main rod 31 and the first slide bar 32, the first slide bar 32 and the second slide bar 33, and the second slide bar 33 and the third slide bar 34 to prevent the telescopic assembly 3 from telescoping, so that the telescopic assembly 3 can limit the corresponding two connecting plates 21, and control the first slide bar 32, the second slide bar 33 and the third slide bar 34 so that the telescopic assembly 3 can always connect the two connecting plates 21 together, thereby making the two hydraulic support legs 2 always connected together, and through the coordination of the four telescopic assemblies 3, the four connecting plates 2 1 and four hydraulic support legs 2 can achieve collaborative operation. When the workover rig derrick 1 tilts to one side, the workover rig derrick 1 applies pressure to the hydraulic support leg 2 corresponding to the tilting direction. The hydraulic support leg 2 transmits the force to the remaining hydraulic support legs 2 through the four telescopic components 3, so that the remaining hydraulic support legs 2 can share the pressure of the hydraulic support leg 2. The four hydraulic support legs 2 are connected together through four gears 4 to form an integral structure, thereby enhancing the synergy between the four hydraulic support legs 2, making the entire support system more solid and better able to resist external force interference from different directions, thereby helping to improve the overall stability of the workover rig derrick 1 and improve the supporting capacity, thereby reducing the occurrence of severe tilting of the derrick and reducing damage to a single hydraulic support leg 2.This enables the workover derrick 1 to subsequently carry out workover and other related operations normally, maintain production progress and efficiency, and reduce safety hazards at the construction site.

[0020] Two supporting ears 12 are fixedly connected to the four sides of the well repair rig derrick 1, and the hydraulic support leg 2 is rotatably connected between the two corresponding supporting ears 12. The inner walls of the four grooves 11 are all provided with inner grooves 13, and the inner walls of the inner grooves 13 are installed with angle adjustment push rods 14, and one end of the angle adjustment push rod 14 is hinged to the side wall of the corresponding hydraulic support leg 2; the well repair rig derrick 1 uses the two supporting ears 12 to support and connect the hydraulic support leg 2, and the hydraulic support leg 2 swings around the axis of the connection axis between the two supporting ears 12, and the inner groove 13 is connected with the internal space of the corresponding groove 11, and the inner groove 13 gives way to the angle adjustment push rod 14. When the angle adjustment push rod 14 is extended, it can push the hydraulic support leg 2 to flip to the outside of the groove 11, so that the hydraulic support leg 2 can achieve tilt support.

[0021] The side walls of the first slide bar 32, the second slide bar 33 and the third slide bar 34 are fixedly connected with rectangular rings 35, and the size of the rectangular rings 35 corresponds to the main rod 31; the rectangular rings 35 are located at the end positions of the first slide bar 32, the second slide bar 33 and the third slide bar 34 to avoid affecting the contraction action of multiple slide bars. When the telescopic assembly 3 is extended, several rectangular rings 35 slide in the direction away from the corresponding main rod 31, and the first slide bar 32, the second slide bar 33 and the third slide bar 34 are in contact with the ground through the rectangular rings 35. The rectangular rings 35 and the main rod 31 maintain a unified plane, so that the main rod 31 and the remaining slide bars can be subjected to force at the same time to support the device.

[0022] One end of the main rod 31 and the third sliding rod 34 are both rotatably connected to a connecting rod 37, and both sides of the connecting plate 21 are rotatably connected to the limiting rod 22, and the connecting rod 37 is rotatably connected to the corresponding inner wall of the limiting rod 22; the main rod 31 and the third sliding rod 34 are at the two end positions of the telescopic assembly 3, the main rod 31 and the third sliding rod 34 are connected to the limiting rod 22 through the connecting rod 37, and the connecting plate 21 is connected to the connecting rod 37 through the limiting rod 22, and the limiting rod 22 and the connecting rod 37 are both of rotating design, so that the limiting rod 22 and the connecting rod 37 can realize multi-directional rotation angle adjustment function, so that the telescopic assembly 3 can adapt to the connection requirements when the connecting plate 21 changes position with the hydraulic support leg 2.

[0023] A magnetic plate 411 is fixedly connected to one side of the limit card plate 41, and two springs 42 are fixedly connected to one side of the magnetic plate 411. An electric suction plate 43 is arranged on one side of the limit card plate 41. Several electric suction plates 43 are respectively installed on the inner walls of the corresponding first slide bar 32, the second slide bar 33 and the third slide bar 34. The inner walls of the first slide bar 32, the second slide bar 33 and the third slide bar 34 are all fixedly connected with two guide rods 44 corresponding to the position of the magnetic plate 411; the first slide bar 32, the second slide bar 33 and the third slide bar 34 all support the corresponding electric suction plate 43, and the electric suction plate 43 supports the corresponding magnetic plate when power is supplied. 411 is magnetically adsorbed, and the magnetic plate 411 drives the limit card plate 41 to slide away from the gear 4, so that the gear 4 can be unlocked, and the telescopic component 3 can be adjusted in length. When the electric suction plate 43 stops supplying power, the two springs 42 push the magnetic plate 411, and the magnetic plate 411 drives the limit card plate 41 to engage and limit the corresponding gear 4, so that the gear 4 cannot rotate. The two guide rods 44 guide and limit the magnetic plate 411 when it slides, so as to prevent the limit card plate 41 from sliding, tilting and deviating, thereby improving the stability of the limit card plate 41.

[0024] The working principle and use process of the utility model are as follows: when the device is used, the angle adjustment push rod 14 is controlled to push the hydraulic support leg 2 to tilt and flip, the hydraulic support leg 2 drives the connecting plate 21 to swing, and the two connecting plates 21 pull the telescopic assembly 3 between them to extend, and then the hydraulic support leg 2 is controlled to extend, and the hydraulic support leg 2 drives the connecting plate 21 to drop toward the ground, and then the connecting plate 21 contacts the ground, and the four hydraulic support legs 2 support the well repair machine derrick 1 to prevent the well repair machine derrick 1 from tilting, thereby improving the use stability of the well repair machine derrick 1. At the same time, when the telescopic assembly 3 is extended, the first slide bar 32 slides on the inner wall of the corresponding main rod 31, the second slide bar 33 slides on the inner wall of the corresponding first slide bar 32, and the third slide bar 34 slides on the inner wall of the corresponding second slide bar 33, and the give way groove 36 gives way to the corresponding gear 4, and the first slide bar 32, the second slide bar 33 and the third slide bar 3 4 drives the corresponding gear 4 to rotate when sliding, then locks the length of the telescopic assembly 3, stops powering the electric suction plate 43, and the two springs 42 push the magnetic plate 411, which drives the limit card plate 41 to engage and limit with the corresponding gear 4, so that the gear 4 cannot rotate, thereby keeping the length position of the telescopic assembly 3 unchanged. When the workover rig mast 1 tilts to one side, the workover rig mast 1 applies pressure to the hydraulic support leg 2 corresponding to the tilting direction, and the hydraulic support leg 2 transmits the force to the remaining hydraulic support legs 2 through the four telescopic assemblies 3, so that the remaining hydraulic support legs 2 can share the pressure of the hydraulic support leg 2. The four hydraulic support legs 2 are connected together by four gears 4 to form an integral structure, thereby enhancing the synergy between the four hydraulic support legs 2, making the entire support system more solid and better able to resist external interference from different directions.

Claims

1. A fully hydraulic workover rig derrick, comprising a workover rig derrick (1), characterized in that: The side wall of the well repair rig derrick (1) is provided with four grooves (11), the inner walls of the four grooves (11) are all snap-fitted with hydraulic support legs (2), the output ends of the four hydraulic support legs (2) are all installed with connecting plates (21), and a telescopic assembly (3) is arranged between two adjacent connecting plates (21), and the telescopic assembly (3) comprises a main rod (31), a first sliding rod (32), a second sliding rod (33) and a third sliding rod (34), the first sliding rod (32) is slidably connected to the corresponding inner wall of the main rod (31), the second sliding rod (33) is slidably connected to the corresponding inner wall of the first sliding rod (32), and the third sliding rod (34) is slidably connected to the corresponding inner wall of the first sliding rod (32). The rod (34) is slidably connected to the inner wall of the corresponding second slide rod (33); one side of the first slide rod (32), the second slide rod (33) and the third slide rod (34) is provided with a clearance groove (36); the inner wall of the clearance groove (36) is rotatably connected with a gear (4); the gear (4) is meshedly connected to the inner wall of the corresponding main rod (31), the first slide rod (32) or the second slide rod (33); one side of the gear (4) is provided with a limit card plate (41); the limit card plate (41) is slidably connected to the inner wall of the corresponding first slide rod (32), the second slide rod (33) or the third slide rod (34).

2. A fully hydraulic workover rig derrick according to claim 1, characterized in that: The four sides of the well repair rig derrick (1) are fixedly connected with two support ears (12), the hydraulic support leg (2) is rotatably connected between the corresponding two support ears (12), the inner walls of the four grooves (11) are each provided with an inner groove (13), the inner wall of the inner groove (13) is installed with an angle adjustment push rod (14), and one end of the angle adjustment push rod (14) is hinged to the side wall of the corresponding hydraulic support leg (2).

3. The fully hydraulic workover rig derrick according to claim 1, characterized in that: The side walls of the first sliding rod (32), the second sliding rod (33) and the third sliding rod (34) are all fixedly connected with a rectangular ring (35), and the rectangular ring (35) has a size corresponding to that of the main rod (31).

4. The fully hydraulic workover rig derrick according to claim 1, characterized in that: One end of the main rod (31) and the third sliding rod (34) are both rotatably connected to a connecting rod (37), both sides of the connecting plate (21) are rotatably connected to the limiting rod (22), and the connecting rod (37) is rotatably connected to the inner wall of the corresponding limiting rod (22).

5. The fully hydraulic workover rig derrick according to claim 1, characterized in that: One side of the limit card plate (41) is fixedly connected to a magnetic plate (411), one side of the magnetic plate (411) is fixedly connected to two springs (42), one side of the limit card plate (41) is provided with an electric suction plate (43), a plurality of the electric suction plates (43) are respectively installed on the inner walls corresponding to the first slide bar (32), the second slide bar (33) and the third slide bar (34), and the inner walls of the first slide bar (32), the second slide bar (33) and the third slide bar (34) are all fixedly connected to two guide rods (44) corresponding to the position of the magnetic plate (411).

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