Adjustable power catwalk

Abstract

The utility model relates to an adjustable power catwalk relates to oil drilling equipment technical field. The ground pressing disc is the cup type structure of open end face, installs the capsule and a plurality of propelling blocks in the ground pressing disc, the capsule upper portion is bonded together with the ground pressing disc, the capsule lower portion and propelling block bond together, and propelling block is evenly arranged on the ground pressing disc section. The utility model has the advantages that when encountering the topography of steep slope, the plunger drops and falls the ground pressing disc to the ground, uses the tool and moves the piston up and down, the piston drops and injects the hydraulic oil in the capsule in the oil storage cavity, due to the sealing effect of the steel ball and the step hole, the hydraulic oil does not flow from the capsule, injects the hydraulic oil, the capsule expands, pushes out the propelling block not on the ground, until all propelling blocks are directly contacted with the steep slope ground, reduces the transverse decomposition force of the plunger in the steep slope position, improves the operation stability of power catwalk.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling and production equipment technology, and in particular to an adjustable power catwalk. Background Technology

[0002] In oilfield drilling operations, drilling tools need to be continuously transported from the ground to the high drilling platform for drilling operations. Since the tools are long and manual transportation is time-consuming and labor-intensive, powered catwalks are usually used to replace manual transportation.

[0003] The existing power catwalks are generally placed directly on the ground on one side of the drilling platform. In order to ensure the stability of the pipes during transportation, the ground where the power catwalk is placed will be leveled first. However, at the construction site of oilfield drilling, there will inevitably be uneven ground, which makes it difficult to place the power catwalk horizontally. Moreover, the ground leveling work is time-consuming and labor-intensive, which seriously delays the normal drilling operation progress.

[0004] Publication No. CN 222576621 U discloses an adjustable powered catwalk. Through the combined use of a second hydraulic cylinder and an adjusting component, the powered catwalk body can be supported, saving time and effort, and facilitating the adjustment of the catwalk body's level. In this technical solution, the adjusting component is simply a linear extension of the second hydraulic cylinder, such as... Figure 1 As shown, uneven ground will cause the piston of the hydraulic cylinder to generate a lateral decomposition force, which will cause deformation, oil leakage and even failure between the hydraulic cylinder and the piston. Utility Model Content

[0005] To address the problems arising from existing powered catwalk support systems, this invention provides an adjustable powered catwalk.

[0006] The technical solution provided by this utility model is: an adjustable power cat walkway, including a main body, with a support arm rotatably connected to each side of the main body, and a hydraulic cylinder fixedly connected to the end of each support arm by bolts. The piston of the hydraulic cylinder extends downward, and the lower part of the piston is connected to the ground pressing plate through a ball joint.

[0007] The pressure plate has an open cup-shaped structure at the lower end. Inside the pressure plate, there is a capsule and several propulsion blocks. The upper part of the capsule is bonded to the pressure plate, and the lower part of the capsule is bonded to the propulsion blocks. The propulsion blocks are evenly distributed on the cross-section of the pressure plate. The upper part of the pressure plate is provided with a ball seat sleeve and a ball seat cover, which are used to form a ball joint with the plunger. The upper part of the pressure plate is provided with an oil storage chamber. The upper part of the capsule is vulcanized and fixed with an oil drain pipe and an oil inlet pipe. The oil drain pipe communicates upward with the oil storage chamber. The upper part of the oil storage chamber is threadedly connected to a valve stem. The valve stem extends downward into the oil storage chamber and forms a conical seal with the oil drain pipe.

[0008] The bottom of the oil inlet pipe is machined with a stepped hole of increased diameter. A steel ball is installed in the stepped hole, and the steel ball and the stepped hole are sealed with a ring. A baffle is threaded to the bottom of the stepped hole. A flow hole is opened on the baffle. The oil inlet pipe extends upward out of the oil storage chamber. An oil inlet hole is opened in the oil storage chamber. The piston is connected to the oil inlet pipe through a sealing ring with clearance fit. The piston extends upward out of the oil inlet pipe.

[0009] The oil reservoir and capsule are filled with hydraulic oil.

[0010] A booster ring is fixedly connected to the upper part of the piston, and a limit ring is fixedly connected to the oil reservoir on one side of the booster ring.

[0011] The beneficial effects of this utility model are as follows: When encountering steep terrain, the plunger descends and the pressure plate falls to the ground. Using tools, the piston is moved up and down. The descending piston injects hydraulic oil from the oil storage chamber into the capsule. Due to the sealing effect of the steel ball and the stepped hole, the hydraulic oil will not flow out of the capsule. When the hydraulic oil is injected, the capsule expands and pushes out the non-ground-contacting propulsion blocks until all propulsion blocks are in direct contact with the steep slope. This reduces the lateral decomposition force generated by the plunger at the steep slope position and improves the running stability of the power cat track. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the current power catwalk structure;

[0013] Appendix Figure 2 This is a schematic diagram of the structure of this utility model;

[0014] Appendix Figure 3 A schematic diagram of the structure of the medium-pressure chassis of this utility model;

[0015] Appendix Figure 4 It is attached Figure 3 Enlarged view of point A.

[0016] In the diagram: 1-body, 2-support arm, 3-cylinder, 4-plunger, 5-base plate, 6-propulsion block, 7-capsule, 8-ball seat sleeve, 9-ball seat cover, 10-oil reservoir, 11-valve stem, 12-drain pipe, 13-inlet pipe, 1301-stepped hole, 14-steel ball, 15-baffle, 16-inlet hole, 17-piston, 18-force ring, 19-limiting ring. Detailed Implementation

[0017] like Figures 1-4 As shown, an adjustable power cat walkway includes a body 1, with a support arm 2 rotatably connected to each side of the body 1. The end of each support arm 2 is fixedly connected to a hydraulic cylinder 3 by bolts. The piston 4 of the hydraulic cylinder 3 extends downward, and the lower part of the piston 4 is connected to a ground pressing plate 5 through a ball joint. The above structure is the existing publicly available technology.

[0018] The pressure plate 5 has an open cup-shaped structure at the lower end. The pressure plate 5 is equipped with a capsule 7 and several propulsion blocks 6. The upper part of the capsule 7 is bonded to the pressure plate 5, and the lower part of the capsule 7 is bonded to the propulsion blocks 6. The propulsion blocks 6 are evenly distributed on the cross section of the pressure plate 5. The upper part of the pressure plate 5 is provided with a ball seat sleeve 8 and a ball seat cover 9, which are used to form a ball joint with the plunger 4. The upper part of the pressure plate 5 is provided with an oil storage chamber 10. The upper part of the capsule 7 is vulcanized and fixed with an oil drain pipe 12 and an oil inlet pipe 13. The oil drain pipe 12 communicates upward with the oil storage chamber 10. The upper part of the oil storage chamber 10 is threadedly connected to a valve stem 11. The valve stem 11 extends downward to the oil storage chamber 10 and forms a conical seal with the oil drain pipe 12.

[0019] The bottom of the oil inlet pipe 13 is machined with a stepped hole 1301 with an increased diameter. A steel ball 14 is installed in the stepped hole 1301. The steel ball 14 and the stepped hole 1301 are sealed with an annular line. The bottom of the stepped hole 1301 is threaded to a baffle 15. The baffle 15 has a through-hole that runs vertically through it. The oil inlet pipe 13 extends upward to the oil storage chamber 10. The oil inlet pipe 13 has an oil inlet hole 16 in the oil storage chamber 10. The oil inlet pipe 13 is connected to a piston 17 through a sealing ring with clearance fit. The piston 17 extends upward to the oil inlet pipe 13.

[0020] The oil storage chamber 10 and the capsule 7 are filled with hydraulic oil.

[0021] When encountering steep terrain, the plunger 4 descends and lowers the pressure plate 5 to the ground. Using tools, the piston 17 is moved up and down. As the piston 17 descends, it injects hydraulic oil from the oil reservoir 10 into the capsule 7. Due to the sealing effect of the steel ball 14 and the stepped hole 1301, the hydraulic oil will not flow out of the capsule 7. As the hydraulic oil is injected, the capsule 7 expands, pushing out the non-ground-contact propulsion blocks 6 until all propulsion blocks 6 are in direct contact with the steep slope. This reduces the lateral decomposition force generated by the plunger 4 at the steep slope position and improves the operational stability of the power cat track.

[0022] It is worth noting that when the operation is completed, the rotating valve stem 11 rises, and the hydraulic oil flows from the drain pipe 12 into the oil storage chamber 10. When the push block 6 is completely retracted into the pressure plate 5, the valve stem 11 needs to be tightened to close the drain channel to prevent the push block 6 from coming out.

[0023] The piston 17 is fixedly connected to the upper part of the force ring 18, and the oil storage chamber 10 is fixedly connected to the limiting ring 19 on one side of the force ring 18. Using a tool such as a pry bar, the force ring 18 and the limiting ring 19 are inserted to pry the piston 17 up and down to perform the oil injection work.

Claims

1. An adjustable powered catwalk, comprising a body (1), characterized in that: The main body (1) is rotatably connected to a support arm (2) on each side. The end of each support arm (2) is fixedly connected to a hydraulic cylinder (3) by bolts. The piston (4) of the hydraulic cylinder (3) extends downward. The lower part of the piston (4) is connected to the pressure plate (5) through a ball joint. The pressure plate (5) has an open cup-shaped structure at the lower end. The pressure plate (5) is equipped with a capsule (7) and several propulsion blocks (6). The upper part of the capsule (7) is bonded to the pressure plate (5), and the lower part of the capsule (7) is bonded to the propulsion blocks (6). The propulsion blocks (6) are evenly arranged on the cross section of the pressure plate (5). The upper part of the pressure plate (5) is provided with a ball seat sleeve (8) and a ball seat cover (9) for forming a ball joint with the plunger (4). The upper part of the pressure plate (5) is provided with an oil storage chamber (10). The upper part of the capsule (7) is vulcanized and fixed with an oil drain pipe (12) and an oil inlet pipe (13). The oil drain pipe (12) is connected upward to the oil storage chamber (10). The upper part of the oil storage chamber (10) is threadedly connected to a valve stem (11). The valve stem (11) extends downward to the oil storage chamber (10) and forms a conical seal with the oil drain pipe (12). The bottom of the oil inlet pipe (13) is machined with a stepped hole (1301) with an increased diameter. A steel ball (14) is installed in the stepped hole (1301). The steel ball (14) and the stepped hole (1301) are sealed with an annular line. The bottom of the stepped hole (1301) is threaded to a baffle (15). The baffle (15) has a through-hole that runs vertically through it. The oil inlet pipe (13) extends upward out of the oil storage chamber (10). The oil inlet pipe (13) has an oil inlet hole (16) in the oil storage chamber (10). The piston (17) is connected to the oil inlet pipe (13) through a sealing ring with clearance fit. The piston (17) extends upward out of the oil inlet pipe (13).

2. The adjustable powered catwalk according to claim 1, characterized in that: The oil reservoir (10) and capsule (7) are filled with hydraulic oil.

3. The adjustable powered catwalk according to claim 1, characterized in that: A booster ring (18) is fixedly connected to the upper part of the piston (17), and a limiting ring (19) is fixedly connected to the oil reservoir (10) on one side of the booster ring (18).

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