A kind of gear rack and oil cylinder hybrid drive's cantilever beam sliding device

Abstract

The utility model discloses a kind of rack and pinion and oil cylinder hybrid drive's cantilever beam sliding device, it is related to platform deck cantilever beam movement control technical field, including transverse sliding mechanism, longitudinal sliding mechanism and load box, transverse sliding mechanism is set on deck slide rail, for the movement of cantilever beam in transverse control;Longitudinal sliding mechanism is set on cantilever beam slide rail, for the movement of cantilever beam in longitudinal control;Load box is set on transverse sliding mechanism, longitudinal sliding mechanism is set on load box;Wherein, transverse sliding mechanism adopts rack and pinion mode and drives the movement of cantilever beam in transverse, longitudinal sliding mechanism adopts oil cylinder mode and drives the movement of cantilever beam in longitudinal;Beneficial effect is in that: rack and pinion drive cantilever beam sliding device is continuously smooth on deck guide rail Slipping, improve sliding efficiency;Oil cylinder drive mechanism directly promotes cantilever beam to slide in cantilever beam sliding groove by oil cylinder extension and contraction, and oil cylinder structure is simple and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of platform deck cantilever beam movement control technology, and in particular to a cantilever beam sliding device driven by a combination of gear rack and hydraulic cylinder. Background Technology

[0002] In offshore drilling platform operations, the cantilever beam sliding glider is one of the core pieces of equipment, and its performance directly affects the coverage, efficiency, and safety of drilling operations. Currently, traditional cantilever beam sliding gliders mostly employ a single drive method, such as fully hydraulic cylinder drive or pure gear and rack drive, which has the following technical drawbacks: Heavy weight and high energy consumption: Hydraulic cylinder drive relies on a high-power hydraulic system, making the equipment bulky and energy-intensive, which is not conducive to energy conservation and environmental protection; while pure gear and rack drive, although operating smoothly, requires a high-specification motor under heavy loads, increasing the overall weight and cost. Low level of automation: Existing devices mostly rely on manual operation or simple control, making it difficult to achieve precise positioning and intelligent adjustment, affecting operational efficiency. Difficult maintenance: Hydraulic systems are prone to leakage, making maintenance complex; gear and rack systems are prone to wear under long-term high load operation, requiring frequent maintenance and increasing downtime costs. A contradiction between coverage and reliability: Drilling operations require the cantilever beam to have a wide range of flexible movement capabilities while ensuring stability and safety under high loads, which traditional single drive methods cannot achieve simultaneously. Application No. 201410531095.x, entitled "A Self-Elevating Drilling Platform Cantilever Beam Sliding Device", describes a device that drives the cantilever beam to slide by setting a dedicated drive rack above the cantilever beam. In order to increase the strength of the cantilever beam, this drive layout requires an additional reinforcing structure, which not only increases the weight of the cantilever beam, but also increases the cost and energy consumption. At the same time, the reducer occupies the space on the outside of the cantilever beam, which is not conducive to deck hoisting and stacking operations.

[0003] Therefore, there is an urgent need for a new type of cantilever beam sliding device that can combine the continuous stability of gear and rack drive with the structural simplicity of hydraulic cylinder drive, while ensuring a wide coverage area and high reliability, reducing energy consumption and maintenance costs, and improving the level of automation, so as to meet the needs of modern offshore drilling platforms for high efficiency, energy saving and safety. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a cantilever beam sliding device driven by a combination of gear rack and hydraulic cylinder, which solves the problems of high energy consumption, high cost, and space occupation of cantilever beam sliding devices.

[0005] To achieve the above objectives, the present invention proposes the following solution:

[0006] A cantilever beam sliding device driven by a combination of rack and pinion and hydraulic cylinder includes a lateral sliding mechanism, a longitudinal sliding mechanism, and a load-bearing box. The lateral sliding mechanism is mounted on a deck rail and is used to control the lateral movement of the cantilever beam. The longitudinal sliding mechanism is mounted on the cantilever beam rail and is used to control the longitudinal movement of the cantilever beam. The load-bearing box is mounted on the lateral sliding mechanism and the longitudinal sliding mechanism is mounted on the load-bearing box. The upper end of the load-bearing box is provided with a longitudinal upper T-shaped slide groove that cooperates with the longitudinal sliding mechanism. The upper T-shaped slide groove is adapted to the shape of the cantilever beam rail. The lateral sliding mechanism drives the lateral movement of the cantilever beam using a rack and pinion mechanism, while the longitudinal sliding mechanism drives the longitudinal movement of the cantilever beam using a hydraulic cylinder mechanism.

[0007] Preferably, the lateral sliding mechanism includes a lateral sliding box fixedly installed at the lower end of the load-bearing box, the lateral sliding box having a lower T-shaped groove corresponding to the deck slide rail in the lateral direction; a rack, which is set on the deck slide rail, the lower T-shaped groove being adapted to the shape of the rack; a reduction motor, which is fixedly installed on the lateral sliding box for driving lateral movement; and a gear, which is fixedly installed on the output shaft of the reduction motor and meshes with the rack.

[0008] Preferably, the longitudinal sliding mechanism includes a sliding box that can lock and release the cantilever beam slide rail and at least one sliding assembly that can push the sliding box to move along the cantilever beam slide rail.

[0009] Preferably, the sliding box includes a box body, both ends of which are connected to the load-bearing box via sliding components; hooks are installed on both the side of the box body closest to the load-bearing box and the side furthest 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.

[0010] Preferably, the cantilever beam slide rail is provided with a socket that matches the pin.

[0011] Preferably, the sliding assembly includes a fixed base and a movable rod. The fixed base is mounted on the load-bearing box, and the two ends of the movable rod are respectively connected to the fixed base and the sliding box.

[0012] Preferably, its application on offshore oil drilling rigs can be used alone or in combination.

[0013] Compared with the prior art, the advantages of this utility model are as follows: the gear and rack driven cantilever beam sliding device slides continuously and smoothly on the deck guide rail, improving sliding efficiency; the hydraulic cylinder drive mechanism directly pushes the cantilever beam to slide in the cantilever beam groove through the extension and retraction of the hydraulic cylinder, and the hydraulic cylinder structure is simple and inexpensive; the two drive methods can work alone or in combination, combining the continuous operation of gear drive and the economic advantages of hydraulic cylinder drive; this device is particularly suitable for engineering scenarios that require both motion accuracy and cost control, such as ship deck equipment and large construction machinery, and has the characteristics of stable transmission, strong adaptability and high cost performance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a cantilever beam sliding device driven by a combination of gear, rack, and hydraulic cylinder according to the present invention.

[0016] Figure 2 This is a schematic diagram of the main structure of a cantilever beam sliding device driven by a combination of gear, rack, and cylinder according to this utility model.

[0017] Figure 3 This is a right-side structural schematic diagram of a cantilever beam sliding device driven by a combination of gear, rack, and cylinder according to this utility model.

[0018] Figure 4 This is a top view of the cantilever beam sliding device driven by a combination of gear, rack, and cylinder according to the present invention.

[0019] Figure 5 This is a cross-sectional view along the AA direction of a cantilever beam sliding device driven by a combination of gear, rack, and cylinder according to this utility model.

[0020] The annotations in the attached figures are explained as follows:

[0021] 1. Lateral sliding mechanism; 11. Lateral sliding box; 12. Gear motor; 13. Rack; 14. Gear;

[0022] 2. Deck rails;

[0023] 3. Longitudinal sliding mechanism; 31. Sliding box; 311. Box body; 312. Hook; 313. Pin; 314. Actuator; 32. Moving rod; 33. Fixed base;

[0024] 4. Cantilever beam slide rail;

[0025] 5. Load-bearing box;

[0026] 6. Upper T-shaped groove;

[0027] 7. Deck. Detailed Implementation

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., 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. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" 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; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] like Figures 1-5 As shown, a cantilever beam sliding device driven by a combination of gear and rack and hydraulic cylinder includes a lateral sliding mechanism 1, a longitudinal sliding mechanism 3, and a load-bearing box 5. The lateral sliding mechanism 1 is mounted on a deck rail 2 and is used to control the lateral movement of the cantilever beam. The longitudinal sliding mechanism 3 is mounted on a cantilever beam rail 4 and is used to control the longitudinal movement of the cantilever beam. The load-bearing box 5 is mounted on the lateral sliding mechanism 1 and the longitudinal sliding mechanism 3 is mounted on the load-bearing box 5. The upper end of the load-bearing box 5 is provided with a longitudinal upper T-shaped groove 6 that cooperates with the longitudinal sliding mechanism 3. The upper T-shaped groove 6 is adapted to the shape of the cantilever beam rail 4. The lateral sliding mechanism 1 drives the cantilever beam to move laterally using a gear and rack mechanism, while the longitudinal sliding mechanism 3 drives the cantilever beam to move longitudinally using a hydraulic cylinder mechanism.

[0032] The lateral sliding mechanism 1 includes a lateral sliding box 11 fixedly installed at the lower end of the load-bearing box 5, the lateral sliding box 11 having a lower T-shaped groove corresponding to the deck slide rail 2 in the lateral direction; a rack 13, which is set on the deck slide rail 2, the lower T-shaped groove being adapted to the shape of the rack 13; a reduction motor 12, which is fixedly installed on the lateral sliding box 11 for driving lateral movement; and a gear 14, which is fixedly installed on the output shaft of the reduction motor 12 and meshes with the rack 13.

[0033] Both the upper T-shaped slide groove 6 and the lower T-shaped slide groove are equipped with lubricating oil channels and filled with grease. When the sliding guide rail passes through the lubricating oil channels, its surface is coated with grease. The grease reduces the coefficient of friction between the sliding guide rail and the sliding box 31, thereby reducing the thrust of the sliding assembly and achieving the purpose of reducing energy consumption and cost.

[0034] The longitudinal sliding mechanism 3 includes a sliding box 31 that can lock and release the cantilever beam slide rail 4 and at least one sliding component that can push the sliding box 31 to move along the cantilever beam slide rail 4; the sliding box 31 includes a box body 311, both ends of which are connected to the load-bearing box 5 through the sliding component; hooks 312 are installed on both the side of the box body 311 near the load-bearing box 5 and the side away from the load-bearing box 5; a liftable pin 313 is provided in the middle of the upper surface of the load-bearing box 5, and an actuator 314 is installed inside the load-bearing box 5 corresponding to the pin 313; the cantilever beam slide rail 4 is provided with a socket adapted to the pin 313; the sliding component includes a fixed seat 33 and a moving rod 32, the fixed seat 33 is installed on the load-bearing box 5, and the two ends of the moving rod 32 are respectively connected to the fixed seat 33 and the sliding box 31.

[0035] Working principle: The deck slide rail 2 is installed on the deck 7. The load-bearing box 5 is adapted to the deck slide rail 2 through the lower T-shaped slide groove. 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. The cantilever beam can slide in the upper T-shaped slide groove 6.

[0036] During lateral movement, the reduction motor 12 of the lateral sliding mechanism 1 operates, and through the transmission of gear 14 and rack 13, the lateral sliding box 11 slides along the deck slide rail 2 to achieve lateral position adjustment of the cantilever beam. During longitudinal movement, the actuator 314 of the longitudinal sliding mechanism 3 pushes the pin 313 into the insertion hole on the cantilever beam slide rail 4, and the cantilever beam slide rail 4 and the sliding box 31 are relatively fixed. The moving rod 32 retracts or extends. This sliding device is adapted to the deck slide rail 2 and is relatively fixed in the longitudinal direction, so the cantilever beam slide rail 4 is pulled to move longitudinally. Then the moving rod 32 extends or retracts. After the sliding box 31 moves a certain distance, the actuator 314 pushes the pin 313 into the insertion hole on the cantilever beam slide rail 4. This cycle is repeated to achieve longitudinal movement of the cantilever beam.

[0037] The sliding box 31 can be driven by a single moving rod 32 or by multiple moving rods 32; this solution preferably uses two in combination, so that even if one of the moving rods 32 fails, the remaining moving rods 32 can still enable the sliding device to continue to operate, thereby improving the reliability of the equipment.

[0038] The moving lever 32 and the actuator 314 can be devices with similar functions, such as hydraulic cylinders, electric cylinders, or lead screws.

[0039] This application also discloses the application of this sliding device on offshore oil drilling rigs, which can be used alone or in combination.

[0040] The foregoing has shown and described the basic principles, main features and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and improvements may be made to this utility model without departing from the spirit and scope of this utility model, and all such changes and improvements should be included within the scope of protection claimed by this utility model.

Claims

1. A cantilever beam sliding device driven by a combination of gear rack and hydraulic cylinder, characterized in that: include: A lateral sliding mechanism (1) is installed on the deck rail (2) to control the lateral movement of the cantilever beam; A longitudinal sliding mechanism (3), which is mounted on the cantilever beam slide rail (4), is used to control the longitudinal movement of the cantilever beam; and The load-bearing box (5) is set on the transverse sliding mechanism (1), and the longitudinal sliding mechanism (3) is set on the load-bearing box (5); the upper end of the load-bearing box (5) is provided with a longitudinal upper T-shaped slide groove (6) that cooperates with the longitudinal sliding mechanism (3); the upper T-shaped slide groove (6) is adapted to the shape of the cantilever beam slide rail (4); Among them, the lateral sliding mechanism (1) uses a gear and rack method to drive the cantilever beam to move laterally, and the longitudinal sliding mechanism (3) uses a hydraulic cylinder method to drive the cantilever beam to move longitudinally.

2. The cantilever beam sliding device driven by a combination of gear, rack, and hydraulic cylinder according to claim 1, characterized in that: The lateral sliding mechanism (1) includes a lateral sliding box (11) fixedly installed at the lower end of the load-bearing box (5), the lateral sliding box (11) having a lower T-shaped groove corresponding to the deck slide rail (2) in the lateral direction; a rack (13) which is set on the deck slide rail (2), the lower T-shaped groove matching the shape of the rack (13); a reduction motor (12) which is fixedly installed on the lateral sliding box (11) for driving lateral movement; and a gear (14) which is fixedly installed on the output shaft of the reduction motor (12) and meshes with the rack (13).

3. The cantilever beam sliding device driven by a combination of gear, rack, and hydraulic cylinder according to claim 1, characterized in that: The longitudinal sliding mechanism (3) includes a sliding box (31) that can lock and release the cantilever beam slide rail (4) and at least one sliding assembly that can push the sliding box (31) to move along the cantilever beam slide rail (4).

4. The cantilever beam sliding device driven by a combination of gear, rack, and hydraulic cylinder according to claim 3, characterized in that: The sliding box (31) includes a box body (311), both ends of which are connected to the load-bearing box (5) via sliding components; hooks (312) are installed on both the side of the box body (311) near the load-bearing box (5) and the side away from the load-bearing box (5); a liftable pin (313) is provided in the middle of the upper surface of the load-bearing box (5), and an actuator (314) is installed inside the load-bearing box (5) corresponding to the pin (313).

5. The cantilever beam sliding device driven by a combination of gear, rack, and hydraulic cylinder according to claim 4, characterized in that: All cantilever beam slide rails (4) are provided with insertion holes that are compatible with the pins (313).

6. The cantilever beam sliding device driven by a combination of gear rack and hydraulic cylinder according to claim 3, characterized in that: The sliding assembly includes a fixed base (33) and a sliding rod (32). The fixed base (33) is installed on the load-bearing box (5), and the two ends of the sliding rod (32) are connected to the fixed base (33) and the sliding box (31) respectively.

7. The cantilever beam sliding device driven by a combination of gear rack and hydraulic cylinder according to claim 1, characterized in that: Its application in offshore oil drilling rigs can be done individually or in combination.

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