A pile clamp for installing a pipe rack

Abstract

The present invention discloses a pile clamp for installing a conductor frame, including a sleeve, a top ring, an outer ring, a lifting ring, a rubber ring, a fixing sleeve, a main body oil cylinder, a pressure plate, a positioning rod, a first positioning hole, a vertical support oil cylinder, a bearing block, an interlocking ring, a ball, an interlocking ring groove, a second positioning hole, a fixing block, a groove, an elastic telescopic rod, a sleeve, a movable rod, a spring and a movable block. The present invention has a reasonable structure, and a rotating installation mechanism is provided to realize the rotating installation of the top ring and the outer ring, so that the positioning installation is more convenient and reliable, and the work efficiency is greatly improved; at the same time, a limiting mechanism is provided, and after the installation and positioning, a preliminary limiting mechanism can be performed to avoid non-artificial rotation before further fixing, which affects the stability of use, and the performance is more reliable, which is suitable for use in harsh seabed environments.

Description

Technical Field

[0001] The invention relates to a pile clamp, in particular to a pile clamp for installing a pipe frame, and belongs to the technical field of pile clamp application. Background Art

[0002] As the infrastructure for offshore oil and gas development, the design, construction and installation of offshore platforms are crucial links in offshore oil and gas development. The level of their construction and installation, to a certain extent, marks the level of offshore oil and gas development. Due to the large changes in the seabed terrain and environment, there are often unforeseen factors such as undercurrents and silt flows. In addition, the complex structure and large size of the offshore platform make the installation of the platform extremely complicated. During the installation of the jacket, leveling is very important. The existing main leveling method is to set a pile clamp on the sleeve, and level the jacket through the pile clamp operation at different pile points and the cooperation of the crane. The pile clamp is installed on the upper part of the sleeve, and multiple circumferential oil cylinders are arranged. The hydraulic pressure of the oil cylinder is used to press the steel pile, providing a large friction force to achieve the pile clamp operation. The output shaft of the oil cylinder bears a large shear force, which is easy to cause damage. In addition, the installation process requires very precise operation, and the harsh environment of the seabed often causes the pile clamp to be difficult to detect during use. In short, the pile clamp in the existing technology either has a low safety factor and cannot cope with the complex environment of the seabed, or the structural process is too complicated and the installation requirements are too high, resulting in high costs, which greatly increases the installation cost of the offshore platform. Summary of the invention

[0003] The object of the present invention is to provide a pile clamp for installing a conductor frame in order to solve the above-mentioned problem.

[0004] The present invention achieves the above-mentioned object through the following technical scheme: a pile clamp for installing a conductor frame, comprising a sleeve and an outer ring, a top ring is fixedly installed on the top of the sleeve, a rotating installation mechanism is arranged between the top ring and the outer ring, the top ring and the outer ring are rotatably connected through the rotating installation mechanism, and a limiting mechanism is installed between the top ring and the rotating installation mechanism;

[0005] A plurality of fixed cylinders are evenly fixedly mounted around the sleeve, and a main oil cylinder is fixedly mounted on the fixed cylinder. A pressure plate is installed at the end of the output shaft of the main oil cylinder, and an elastic clamping mechanism is fixedly mounted on one side of the pressure plate. A groove is opened at the end of the output shaft of the main oil cylinder, and the elastic clamping mechanism is embedded in the inside of the groove;

[0006] The elastic clamping mechanism is composed of a fixed block, an elastic telescopic rod and a movable block, the two ends of the elastic telescopic rod are respectively fixed to the fixed block and the movable block, and the fixed block, the elastic telescopic rod and the movable block are all embedded in the groove;

[0007] A vertical bearing mechanism is fixedly installed on one side of the bottom of the fixed cylinder. The vertical bearing mechanism consists of a vertical supporting cylinder and a bearing block. The vertical supporting cylinder is fixedly engaged with the bottom of the fixed cylinder, and the bearing block is fixedly connected to the output shaft of the vertical supporting cylinder.

[0008] Preferably, the rotating mounting mechanism is composed of an interlocking ring, balls and an interlocking ring groove, the interlocking ring groove is opened on the outer ring surface of the top ring, the interlocking ring is fixedly connected to the inner ring of the outer ring, the interlocking ring is interlocked with the interlocking ring groove, the number of the balls is several, the top surface and the bottom surface of the interlocking ring are both provided with concave holes, and the balls are interlocked with the concave holes.

[0009] Preferably, the limiting mechanism is composed of a positioning rod, a first positioning hole and a second positioning hole, the first positioning hole and the second positioning hole are respectively opened on the top of the top ring and the surface of the engaging ring, and the positioning rod is cooperatively connected with the first positioning hole and the second positioning hole.

[0010] Preferably, a plurality of lifting rings are evenly and fixedly installed around the outer ring, and the lifting rings are U-shaped structures.

[0011] Preferably, the fixed block is fixedly connected to one side of the pressing plate, and the fixed block and the movable block have the same geometric dimensions.

[0012] Preferably, the pressing plate is a circular plate structure, and a plurality of anti-slip grooves are evenly formed on the surface of the pressing plate.

[0013] Preferably, the elastic telescopic rod is composed of a sleeve, a movable rod and a spring, the movable rod and the sleeve are clearance-fitted, the spring is arranged inside the sleeve, and the movable rod and the sleeve are elastically connected via the spring.

[0014] Preferably, one end of the spring is fixedly connected to the inner wall of the sleeve, and the other end of the spring is fixedly connected to one end of the movable rod.

[0015] Preferably, a rubber ring is provided between the top ring and the outer ring, and the rubber ring is bonded to the surface of the outer ring.

[0016] Preferably, an arc groove is formed on the top of the bearing block, and the bearing block is located at the bottom of the output shaft of the main oil cylinder.

[0017] The beneficial effects of the present invention are:

[0018] 1. This type of pile clamp is easy to inspect and check, so it is easy to remove and repair faults or damage. By setting a rotating installation mechanism, the top ring and the outer ring can be installed in a rotating manner. After lifting, the sleeve can be manually turned to realize the overall rotation and change the direction and position, which is convenient for observation. Personnel do not need to walk around, which provides convenience for maintenance. At the same time, a limit mechanism is set, which can be limited after inspection to avoid non-human rotation during use, which affects the stability of use;

[0019] 2. This type of pile clamp realizes the pile clamping operation by the high friction provided by the pressure plate pressing the steel pile. The pressure plate can be installed with the main oil cylinder through the cooperation of the elastic clamping mechanism and the groove. It is easy to install, disassemble and use, and easy to remove for cleaning and maintenance.

[0020] 3. This type of pile clamp also has a vertical bearing mechanism. When performing pile clamping operations, the vertical support cylinder provides power to make the bearing block press the bottom of the output shaft of the main cylinder to carry out the load and provide vertical support force, thereby reducing the shear force borne by the output shaft of the main cylinder, avoiding gaps with the sealing ring, and preventing oil leakage. 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative labor.

[0022] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the surface structure of the interlocking ring of the present invention;

[0025] Figure 4 This is a schematic diagram of the connection structure between the main oil cylinder and the pressure plate of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the elastic telescopic rod of the present invention;

[0027] Figure 6 This is a schematic diagram of the main oil cylinder and groove structure of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the bearing block of the present invention.

[0029] In the figure: 1. sleeve, 2. top ring, 3. outer ring, 4. lifting ring, 5. rubber ring, 6. fixing cylinder, 7. main cylinder, 8. pressure plate, 9. positioning rod, 10. first positioning hole, 11. vertical supporting cylinder, 12. bearing block, 13. embedded ring, 14. ball, 15. embedded ring groove, 16. second positioning hole, 17. fixing block, 18. groove, 19. elastic telescopic rod, 1901, sleeve, 1902, movable rod, 1903, spring, 20, movable block. DETAILED DESCRIPTION

[0030] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0032] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. are 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 a limitation on the present invention.

[0033] See also Figure 1-7 As shown, a pile clamp for installing a conductor frame comprises a sleeve 1 and an outer ring 3, a top ring 2 is fixedly installed on the top of the sleeve 1, a rotating installation mechanism is arranged between the top ring 2 and the outer ring 3, the top ring 2 and the outer ring 3 are rotatably connected through the rotating installation mechanism, and a limiting mechanism is installed between the top ring 2 and the rotating installation mechanism;

[0034] A plurality of fixed cylinders 6 are evenly fixedly mounted around the sleeve 1, and a main oil cylinder 7 is fixedly mounted on the fixed cylinder 6. A pressure plate 8 is installed at the end of the output shaft of the main oil cylinder 7, and an elastic clamping mechanism is fixedly mounted on one side of the pressure plate 8. A groove 18 is opened at the end of the output shaft of the main oil cylinder 7, and the elastic clamping mechanism is embedded in the groove 18.

[0035] The elastic clamping mechanism is composed of a fixed block 17, an elastic telescopic rod 19 and a movable block 20. The two ends of the elastic telescopic rod 19 are respectively fixed to the fixed block 17 and the movable block 20. The fixed block 17, the elastic telescopic rod 19 and the movable block 20 are all embedded in the groove 18.

[0036] A vertical bearing mechanism is fixedly installed on one side of the bottom of the fixed cylinder 6, and the vertical bearing mechanism is composed of a vertical supporting cylinder 11 and a bearing block 12. The vertical supporting cylinder 11 is fixedly engaged with the bottom of the fixed cylinder 6, and the bearing block 12 is fixedly connected to the output shaft of the vertical supporting cylinder 11.

[0037] The rotating installation mechanism is composed of an embedded ring 13, a ball 14 and an embedded ring groove 15. The embedded ring groove 15 is opened on the outer ring surface of the top ring 2. The embedded ring 13 is fixedly connected to the inner ring of the outer ring 3. The embedded ring 13 is embedded in the embedded ring groove 15. The number of the balls 14 is several. The top surface and the bottom surface of the embedded ring 13 are both provided with concave holes. The balls 14 are embedded in the concave holes. The balls 14 realize rolling friction and reduce friction resistance. The limiting mechanism is composed of a positioning rod 9, a first positioning hole 10 and a second positioning hole 16. The first positioning hole 10 and the second positioning hole 16 are respectively opened on the top of the top ring 2 and the surface of the engaging ring 13, and the positioning rod 9 is matched with the first positioning hole 10 and the second positioning hole 16 to limit the position, so as to avoid unintended rotation during use, which affects the stability of use; a plurality of lifting rings 4 are evenly fixedly installed around the outer ring 3, and the lifting ring 4 is a U-shaped structure, which is used for hanging during hoisting and provides a hanging position; the fixed block 17 is fixedly connected to one side of the pressing plate 8, and the fixed block 17 and the movable block 20 have the same geometric dimensions. , realizing the fixed installation of the elastic clamping mechanism; the pressing plate 8 is a circular plate structure, and a plurality of anti-skid grooves are evenly opened on the surface of the pressing plate 8 to improve the friction during use; the elastic telescopic rod 19 is composed of a sleeve 1901, a movable rod 1902 and a spring 1903, the movable rod 1902 and the sleeve 1901 are clearance-matched, the spring 1903 is arranged inside the sleeve 1901, the movable rod 1902 and the sleeve 1901 are elastically connected by the spring 1903, the spring 1903 makes it have elastic force, the movable rod 1902 and the sleeve 1901 Relative sliding between them realizes extension and retraction; one end of the spring 1903 is fixedly connected to the inner wall of the sleeve 1901, and the other end of the spring 1903 is fixedly connected to one end of the movable rod 1902, realizing the elastic connection between the movable rod 1902 and the sleeve 1901; a rubber ring 5 is arranged between the top ring 2 and the outer ring 3, and the rubber ring 5 is bonded to the surface of the outer ring 3 for filling, soft contact and providing sealing; an arc groove is opened on the top of the bearing block 12, and the bearing block 12 is located at the bottom of the output shaft of the main oil cylinder 7, and the bearing block 12 is used to support the bottom of the output shaft of the main oil cylinder 7.

[0038] When the present invention is in use, the electrical components appearing in the present application are all externally connected to a power source and a control switch, and are hoisted by an external hoisting device, and a hoisting position is provided by a hoisting ring 4. When maintenance is required, the positioning rod 9 is pulled out from the first positioning hole 10 and the second positioning hole 16, and the limit is cancelled. The sleeve 1 can be rotated by manually turning it, and the ball 14 rolls and performs rolling friction. The angle position can be adjusted, which provides convenience for maintenance and is easy to observe. After maintenance, the first positioning hole 10 and the second positioning hole 16 are aligned, and then the positioning rod 9 is inserted into the first positioning hole 10 and the second positioning hole 16 to achieve limit, so as to avoid non-artificial rotation between the top ring 2 and the outer ring 3, which affects the stability of use;

[0039] When the pile is clamped, the main oil cylinder 7 is extended, and the high friction provided by the pressing plate 8 is used to press the steel pile to achieve the pile clamping operation. The vertical support oil cylinder 11 is extended, and the output shaft of the main oil cylinder 7 is pressed by the bearing block 12 to provide support and vertical support force, thereby reducing the shear force borne by the output shaft of the main oil cylinder 7, avoiding the gap with the sealing ring, and preventing oil leakage;

[0040] When disassembling the pressing plate 8, the pressing plate 8 is pulled to pull the movable block 20 and the fixed block 17 out of the groove 18, thereby completing the disassembly;

[0041] When installing the pressure plate 8, the movable block 20 is pulled to shrink the elastic telescopic rod 19, and the distance between the movable block 20 and the fixed block 17 is reduced. Then the movable block 20 and the fixed block 17 are pushed into the groove 18 to achieve interlocking. The groove 18 provides a barrier for the movable block 20 and the fixed block 17, maintains the contracted state of the elastic telescopic rod 19, provides pressure for the movable block 20 and the fixed block 17, and provides a clamping force for installation to achieve installation.

[0042] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0044] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pile clamp for installing a pipe rack, characterized in that: It comprises a sleeve (1) and an outer ring (3), a top ring (2) is fixedly mounted on the top of the sleeve (1), a rotating mounting mechanism is arranged between the top ring (2) and the outer ring (3), the top ring (2) and the outer ring (3) are rotatably connected via the rotating mounting mechanism, and a limiting mechanism is installed between the top ring (2) and the rotating mounting mechanism; A plurality of fixed cylinders (6) are evenly fixedly mounted around the sleeve (1), a main oil cylinder (7) is fixedly mounted on the fixed cylinder (6), a pressure plate (8) is mounted at the end of the output shaft of the main oil cylinder (7), an elastic clamping mechanism is fixedly mounted on one side of the pressure plate (8), a groove (18) is formed at the end of the output shaft of the main oil cylinder (7), and the elastic clamping mechanism is embedded in the groove (18); The elastic clamping mechanism is composed of a fixed block (17), an elastic telescopic rod (19) and a movable block (20); two ends of the elastic telescopic rod (19) are respectively fixedly connected to the fixed block (17) and the movable block (20); the fixed block (17), the elastic telescopic rod (19) and the movable block (20) are all embedded in the groove (18); A vertical bearing mechanism is fixedly installed on one side of the bottom of the fixed cylinder (6), and the vertical bearing mechanism is composed of a vertical supporting oil cylinder (11) and a bearing block (12). The vertical supporting oil cylinder (11) is fixedly engaged with the bottom of the fixed cylinder (6), and the bearing block (12) is fixedly connected to the output shaft of the vertical supporting oil cylinder (11); The rotating installation mechanism is composed of an embedded circular ring (13), a ball (14) and an embedded circular ring groove (15), wherein the embedded circular ring groove (15) is provided on the outer ring surface of the top ring (2), the embedded circular ring (13) is fixedly connected to the inner ring of the outer circular ring (3), the embedded circular ring (13) is embedded in the embedded circular ring groove (15), the number of the ball (14) is several, the top surface and the bottom surface of the embedded circular ring (13) are both provided with concave holes, and the ball (14) is embedded in the concave holes; The limiting mechanism is composed of a positioning rod (9), a first positioning hole (10) and a second positioning hole (16); the first positioning hole (10) and the second positioning hole (16) are respectively opened on the top of the top ring (2) and the surface of the engaging ring (13); the positioning rod (9) is matched and connected with the first positioning hole (10) and the second positioning hole (16).

2. The pile clamp for installing a pipe rack according to claim 1, characterized in that: A plurality of lifting rings (4) are evenly and fixedly installed around the outer ring of the outer circular ring (3), and the lifting rings (4) are of a U-shaped structure.

3. The pile clamp for installing a pipe rack according to claim 1, characterized in that: The fixed block (17) is fixedly connected to one side of the pressing plate (8), and the fixed block (17) and the movable block (20) have the same geometric dimensions.

4. The pile clamp for installing a pipe rack according to claim 1, characterized in that: The pressing plate (8) is a circular plate-shaped structure, and a plurality of anti-slip grooves are evenly arranged on the surface of the pressing plate (8).

5. The pile clamp for installing a pipe rack according to claim 1, characterized in that: The elastic telescopic rod (19) is composed of a sleeve (1901), a movable rod (1902) and a spring (1903); the movable rod (1902) and the sleeve (1901) are clearance-matched; the spring (1903) is arranged inside the sleeve (1901); and the movable rod (1902) and the sleeve (1901) are elastically connected via the spring (1903).

6. The pile clamp for installing a pipe rack according to claim 5, characterized in that: One end of the spring (1903) is fixedly connected to the inner wall of the sleeve (1901), and the other end of the spring (1903) is fixedly connected to one end of the movable rod (1902).

7. The pile clamp for installing a pipe rack according to claim 1, characterized in that: A rubber ring (5) is arranged between the top ring (2) and the outer ring (3), and the rubber ring (5) is bonded to the surface of the outer ring (3).

8. The pile clamp for installing a pipe rack according to claim 1, characterized in that: The top of the bearing block (12) is provided with an arc groove, and the bearing block (12) is located at the bottom of the output shaft of the main oil cylinder (7).

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