Cantilever beam sliding device driven by hydraulic cylinder

Abstract

The invention discloses a cantilever beam sliding device driven by a hydraulic cylinder, and relates to the technical field of drilling platform cantilever beam movement control, and the cantilever beam sliding device comprises a transverse sliding mechanism which is arranged on a deck sliding rail and is used for controlling a cantilever beam to move in the transverse direction; the longitudinal sliding mechanism is arranged on the cantilever beam sliding rail and used for controlling the cantilever beam to move in the longitudinal direction; the bearing box is arranged on the transverse sliding mechanism, and the longitudinal sliding mechanism is arranged on the bearing box; a longitudinal upper T-shaped sliding groove matched with the longitudinal sliding mechanism and a transverse lower T-shaped sliding groove matched with the transverse sliding mechanism are formed in the upper end and the lower end of the bearing box correspondingly. The device has the beneficial effects that the hydraulic cylinder is adopted for driving, the T-shaped sliding groove is matched with the sliding rail, the sliding box hook and bolt locking structure is matched with the double-sliding assembly for driving, the stroke measuring instrument and the overhauling platform are arranged, single or combined use can be achieved, space is saved, energy consumption is reduced, reliability is improved, and the problems of high cost and poor stability in the prior art are solved.

Description

Technical Field

[0001] The invention relates to the technical field of cantilever beam movement control of a drilling platform, in particular to a cantilever beam sliding device driven by a hydraulic cylinder. Background Art

[0002] With the growing global demand for energy sources such as oil and natural gas, the ocean, a rich energy reserve, is experiencing increasing oil development activity. As essential equipment for offshore oil drilling, jack-up drilling platforms must possess efficient and flexible drilling capabilities. To drill multiple wells from the same platform location, improving drilling efficiency and reducing costs, a cantilever beam capable of supporting the drilling rig and moving it to different designated locations is required, leading to the development of a cantilever beam sliding device.

[0003] Among the published patents, application number 201410531095.X is for a cantilever beam sliding device for a jack-up drilling platform. This device controls the cantilever beam's sliding motion via a rack and pinion, with the cantilever beam's extension and retraction controlled by the forward and reverse rotation of the motor. However, this solution suffers from the large size and cost of the reducer, which occupies deck space and limits the cantilever beam's lateral movement, thereby limiting the number of wells the rig can drill. Application number 201621128690.X is for a cantilever beam sliding system for a jack-up platform. This technical solution utilizes the operation of a lead screw nut to extend and retract the cantilever beam. The operating principle is similarly to using the forward and reverse rotation of the motor to achieve this. However, the lead screw itself suffers from poor stability when the cantilever beam moves long distances, making it difficult to adapt to the harsh environment of an open-air deck and hindering its application in engineering projects.

[0004] How to improve equipment safety, reliability, smooth operation, reduce equipment weight and energy consumption, and save deck space to increase drilling area are the current issues to be solved. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides a cantilever beam transverse and longitudinal sliding device to solve the problems of high cost and occupied deck space of the cantilever beam sliding device.

[0006] To achieve the above objectives, the present invention proposes the following solutions:

[0007] A cantilever beam sliding device driven by a hydraulic cylinder, comprising:

[0008] A lateral sliding mechanism, which is provided on the deck slide rail and is used to control the lateral movement of the cantilever beam;

[0009] A longitudinal sliding mechanism, which is provided on the cantilever beam slide rail and is used to control the longitudinal movement of the cantilever beam; and

[0010] The load-bearing box is arranged on the transverse sliding mechanism, and the longitudinal sliding mechanism is arranged on the load-bearing box; the upper and lower ends of the load-bearing box are respectively provided with a longitudinal upper T-shaped slide groove cooperating with the longitudinal sliding mechanism and a transverse lower T-shaped slide groove cooperating with the transverse sliding mechanism; the lower T-shaped slide groove is adapted to the shape of the deck slide rail, and the upper T-shaped slide groove is adapted to the shape of the cantilever beam slide rail.

[0011] Preferably, the transverse sliding mechanism includes a sliding box that can lock and release the deck slide rail and a sliding assembly that can push the sliding box to move along the deck slide rail.

[0012] Preferably, the longitudinal sliding mechanism includes a sliding box capable of locking and releasing the cantilever beam slide rail and at least one sliding assembly capable of pushing the sliding box to move along the cantilever beam slide rail.

[0013] Preferably: the sliding box includes a box body, both ends of which are connected to the load-bearing box through sliding components; hooks are installed on the side of the box body close to the load-bearing box and the side away from the load-bearing box; a liftable pin is provided in the middle of the upper surface of the load-bearing box, and an actuator is installed inside the load-bearing box corresponding to the pin.

[0014] Preferably, both the deck slide rail and the cantilever beam slide rail are provided with a socket adapted to fit the latch.

[0015] Preferably, the sliding assembly includes a fixed seat and a moving rod, the fixed seat is installed on the load-bearing box, and two ends of the moving rod are respectively connected to the fixed seat and the sliding box.

[0016] Preferably, the sliding assembly further includes a travel measuring instrument for measuring the sliding distance.

[0017] Preferably: the travel measuring instrument includes a sleeve and a ruler rod, one end of the ruler rod is inserted into the sleeve and slides; the sleeve and the ruler rod are fixedly mounted on both ends of the moving rod respectively; the side of the ruler rod is engraved with scale lines for easy observation of the elongation.

[0018] Preferably, a maintenance platform is fixedly installed on the load-bearing box.

[0019] Preferably, the sliding device is used on an offshore oil drilling rig, and can be used alone or in combination.

[0020] Compared with the existing technology, the beneficial effects of the present invention are: the present invention drives the sliding assembly through a hydraulic cylinder, replacing the traditional gear rack or screw nut structure, significantly reducing the size of the device, saving deck space, and increasing the drilling area; the T-shaped slide groove and the slide rail are adapted to the design, and grease is used to reduce friction, reduce energy consumption and cost; the hook and pin locking structure of the sliding box, combined with the dual sliding assembly drive, can still operate even if a single fault occurs, thereby improving the reliability and safety of the equipment; the stroke measuring instrument can accurately monitor the sliding distance to ensure the movement accuracy; the maintenance platform is easy to maintain, and the devices can be used alone or in combination, flexibly adapting to the needs of offshore oil drilling, and effectively solving the problems of high cost and poor stability of the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a diagram showing the installation state of a cantilever beam sliding device driven by a hydraulic cylinder according to the present invention.

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of a cantilever beam sliding device driven by a hydraulic cylinder according to the present invention.

[0024] Figure 3 It is a schematic diagram of the internal structure of the lateral sliding mechanism of the cantilever beam sliding device driven by a hydraulic cylinder described in the present invention.

[0025] Figure 4 It is a three-dimensional structural schematic diagram of a stroke measuring instrument of a cantilever beam sliding device driven by a hydraulic cylinder according to the present invention.

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Lateral sliding mechanism;

[0028] 2. Deck rails;

[0029] 3. Longitudinal sliding mechanism;

[0030] 4. Cantilever beam slide rail;

[0031] 5. Load-bearing box;

[0032] 6. Upper T-shaped chute;

[0033] 7. Lower T-shaped chute;

[0034] 8. Maintenance platform;

[0035] 91. Sliding box; 911. Box body; 912. Hook; 913. Latch; 914. Actuator; 92. Sliding assembly; 921. Fixed seat; 922. Moving rod; 923. Stroke measuring instrument; 9231. Sleeve; 9232. Ruler rod. DETAILED DESCRIPTION

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on specific circumstances.

[0038] The present invention will be further described below in conjunction with the accompanying drawings:

[0039] like Figure 1-Figure 2As shown, a hydraulic cylinder driven cantilever beam sliding device includes a transverse sliding mechanism 1, a longitudinal sliding mechanism 3 and a load-bearing box 5; the transverse sliding mechanism 1 is arranged on the deck slide rail 2, and is used to control the transverse movement of the cantilever beam; the longitudinal sliding mechanism 3 is arranged on the cantilever beam slide rail 4, and is used to control the longitudinal movement of the cantilever beam; the load-bearing box 5 is arranged on the transverse sliding mechanism 1, and the longitudinal sliding mechanism 3 is arranged on the load-bearing box 5; the upper and lower ends of the load-bearing box 5 are respectively provided with a longitudinal upper T-shaped slide groove T and ... A horizontal lower T-shaped slide 7 cooperates with the horizontal sliding mechanism 1; the lower T-shaped slide 7 is adapted to the shape of the deck slide rail 2, and the upper T-shaped slide 6 is adapted to the shape of the cantilever beam slide rail 4. Lubricating oil channels are provided in the upper T-shaped slide 6 and the lower T-shaped slide 7 and are filled with grease. When the sliding guide rail passes through the lubricating oil channel, grease adheres to its surface. The grease reduces the friction coefficient between the sliding guide rail and the sliding box 91, thereby reducing the thrust of the sliding assembly 92, thereby achieving the purpose of reducing energy consumption and cost; an inspection platform 8 is fixedly installed on the load-bearing box 5.

[0040] like Figure 2-Figure 3 As shown, the lateral sliding mechanism 1 includes a sliding box 91 that can lock and release the deck slide rail 2 and a sliding assembly 92 that can push the sliding box 91 to move along the deck slide rail 2; the sliding box 91 includes a box body 911, and both ends of the box body 911 are connected to the load-bearing box 5 through the sliding assembly 92; the box body 911 is equipped with hooks 912 on the side close to the load-bearing box 5 and the side away from the load-bearing box 5; a pin 913 that can be raised and lowered is provided in the middle of the upper surface of the load-bearing box 5, and an actuator 914 is installed inside the load-bearing box 5 corresponding to the pin 913; the sliding assembly 92 includes a fixed seat 921 and a moving rod 922, the fixed seat 921 is installed on the load-bearing box 5, and the two ends of the moving rod 922 are hinged to the fixed seat 921 and the sliding box 91 respectively.

[0041] like Figure 3 As shown, the sliding assembly 92 also includes a stroke measuring instrument 923 for measuring the sliding distance; the stroke measuring instrument 923 includes a sleeve 9231 and a ruler rod 9232, one end of the ruler rod 9232 is inserted into the sleeve 9231 and slides; the sleeve 9231 and the ruler rod 9232 are respectively fixedly mounted on the two ends of the moving rod 922; the side of the ruler rod 9232 is engraved with scale lines for convenient observation of the elongation.

[0042] like Figure 1-Figure 2 As shown, the longitudinal sliding mechanism 3 has the same structure as the transverse sliding mechanism 1, but is set in different positions. The difference is that: first, the transverse sliding mechanism 1 is set transversely at the lower end of the load-bearing box 5, and the longitudinal sliding mechanism 3 is set longitudinally at the upper end of the load-bearing box 5; secondly, the transverse sliding mechanism 1 is stuck on the deck slide rail 2 and slides, and the longitudinal sliding mechanism 3 is hung below the cantilever beam slide rail 4 and slides.

[0043] The deck slide rail 2 and the cantilever beam slide rail 4 are both provided with jacks arranged at intervals; the deck slide rail 2 is fixedly installed on the deck, and the cantilever beam slide rail 4 is fixedly installed on the cantilever beam.

[0044] Working principle: The load-bearing box 5 stands upright on the deck and is adapted to the deck slide rail 2 through the lower T-shaped slide groove 7. The load-bearing box 5 can slide on the deck slide rail 2. The upper T-shaped slide groove 6 is adapted to the cantilever beam slide rail 4, and the cantilever beam can slide in the upper T-shaped slide groove 6. The slide box 91 of the transverse sliding mechanism 1 is adapted to the deck slide rail 2 through the hook 912. The slide box 91 is hung below the deck slide rail 2. The slide box 91 of the longitudinal sliding mechanism 3 is adapted to the cantilever beam slide rail 4 through the hook 912. The slide box 91 is stuck above the deck slide rail 2. Sockets are provided on both the cantilever beam slide rail 4 and the deck slide rail 2, and the sockets are adapted to the latch 913.

[0045] When in use, the actuator 914 of the transverse sliding mechanism 1 pushes the latch 913 to be stuck in the socket on the deck slide rail 2, the sliding box 91 is fixed relative to the deck slide rail 2, the moving rod 922 shrinks or extends, the load-bearing box 5 is pulled to move laterally along the deck slide rail 2, and then the actuator 914 shrinks, the latch 913 is retracted into the box body 911, there is no pressure between the sliding box 91 and the deck slide rail 2, the moving rod 922 extends or shrinks, the sliding box 91 is pushed to slide laterally along the deck slide rail 2, and then the actuator 914 pushes the latch 913 to be stuck in the socket, and this cycle is repeated. Realize the lateral movement of the transverse cantilever beam; the actuator 914 of the longitudinal sliding mechanism 3 pushes the pin 913 to be stuck in the socket on the cantilever beam slide rail 4, the cantilever beam slide rail 4 is relatively fixed to the sliding box 91, and the moving rod 922 contracts or extends. This sliding device is adapted to the deck slide rail 2 and is relatively fixed longitudinally, so the cantilever beam slide rail 4 is pulled to move longitudinally, and then the moving rod 922 extends or contracts. After the sliding box 91 moves a certain distance, the actuator 914 pushes the pin 913 to be stuck in the socket on the cantilever beam slide rail 4, thereby realizing the longitudinal movement of the cantilever beam in this cycle.

[0046] The sliding box 91 can be driven by a single sliding assembly 92 or by multiple sliding assemblies 92; this solution preferably uses two in combination. Even if one of the sliding assemblies 92 fails, the remaining sliding assemblies 92 can enable the sliding device to continue operating, thereby improving equipment reliability.

[0047] The present application also discloses the application of the sliding device on an offshore oil drilling rig, which can be used alone or in combination.

[0048] The moving rod 922 and the actuator 914 can be devices with similar functions such as a hydraulic cylinder, an electric cylinder or a lead screw.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements should be included in the scope of protection required by the present invention.

Claims

1. A cantilever beam sliding device driven by a hydraulic cylinder, comprising: A lateral sliding mechanism (1) is provided on a deck slide rail (2) and is used to control the lateral movement of the cantilever beam; A longitudinal sliding mechanism (3) is provided on the cantilever beam slide rail (4) and is used to control the longitudinal movement of the cantilever beam; It is characterized by: further comprising: A load-bearing box (5) is arranged on the transverse sliding mechanism (1), and the longitudinal sliding mechanism (3) is arranged on the load-bearing box (5); the upper and lower ends of the load-bearing box (5) are respectively provided with a longitudinal upper T-shaped slide groove (6) matched with the longitudinal sliding mechanism (3) and a transverse lower T-shaped slide groove (7) matched with the transverse sliding mechanism (1); the lower T-shaped slide groove (7) is adapted to the shape of the deck slide rail (2), and the upper T-shaped slide groove (6) is adapted to the shape of the cantilever beam slide rail (4).

2. The hydraulic cylinder driven cantilever beam sliding device according to claim 1, characterized in that: The transverse sliding mechanism (1) comprises a sliding box (91) capable of locking and releasing the deck slide rail (2) and a sliding assembly (92) capable of pushing the sliding box (91) to move along the deck slide rail (2).

3. The hydraulic cylinder driven cantilever beam sliding device according to claim 1, characterized in that: The longitudinal sliding mechanism (3) comprises a sliding box (91) capable of locking and releasing the cantilever beam slide rail (4) and at least one sliding assembly (92) capable of pushing the sliding box (91) to move along the cantilever beam slide rail (4).

4. The hydraulic cylinder driven cantilever beam sliding device according to any one of claims 2 or 3, characterized in that: The sliding box (91) comprises a box body (911), both ends of which are connected to the load-bearing box (5) via sliding assemblies (92); hooks (912) are installed on both the side of the box body (911) close to the load-bearing box (5) and the side away from the load-bearing box (5); a latch (913) that can be raised and lowered is provided in the middle of the upper surface of the load-bearing box (5), and an actuator (914) is installed inside the load-bearing box (5) corresponding to the latch (913).

5. The hydraulic cylinder driven cantilever beam sliding device according to claim 4, characterized in that: The deck slide rail (2) and the cantilever beam slide rail (4) are both provided with a socket adapted to the latch (913).

6. The hydraulic cylinder driven cantilever beam sliding device according to any one of claims 2 or 3, characterized in that: The sliding assembly (92) comprises a fixed seat (921) and a moving rod (922), wherein the fixed seat (921) is mounted on the load-bearing box (5), and the two ends of the moving rod (922) are respectively connected to the fixed seat (921) and the sliding box (91).

7. The hydraulic cylinder driven cantilever beam sliding device according to claim 5, characterized in that: The sliding assembly (92) further includes a travel measuring instrument (923) for measuring the sliding distance.

8. The hydraulic cylinder driven cantilever beam sliding device according to claim 7, characterized in that: The travel measuring instrument (923) comprises a sleeve (9231) and a ruler (9232), one end of the ruler (9232) being inserted into the sleeve (9231) and sliding; the sleeve (9231) and the ruler (9232) being fixedly mounted on the two ends of the moving rod (922), respectively; and a scale line is engraved on the side of the ruler (9232) for facilitating observation of the elongation.

9. The hydraulic cylinder driven cantilever beam sliding device according to claim 1, characterized in that: A maintenance platform (8) is fixedly mounted on the load-bearing box (5).

10. The hydraulic cylinder driven cantilever beam sliding device according to claim 1, characterized in that: The invention is applied to offshore oil drilling rigs, and the invention can be used alone or in combination.

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