A tool for removing the pin of a crane on an offshore oil production platform
By designing a crane pin removal tool including a tensile unit, a support unit and a hydraulic unit, the problems of corrosion and expansion of the crane pin in the marine environment and the labor-intensive dismantling of traditional manpower are solved, and a more convenient and safe pin removal process is achieved.
Patent Information
- Application Number
- CN202420703538.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-04-08
AI Technical Summary
The crane pin shaft is prone to corrosion and expansion in the marine environment. Due to space limitations, traditional human disassembly methods are laborious and time-consuming, and it is easy to flatten the pin shaft and difficult to remove.
A pin shaft extraction tool for the offshore oil production platform crane is designed, including a tension unit, a support unit and a hydraulic unit. It is fixed to both sides of the crane base through the tension jaws of the tension unit. The hydraulic unit lifts the pin shaft so that it can easily lift out of the crane base.
This tool makes the disassembly of the crane pin shaft more convenient, avoids the problem of corrosion and expansion of the pin shaft, reduces the risk and time of manpower operation, and has a simple structure, which is easy to use and transport.
Smart Images
Figure CN222697088U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of crane disassembly and assembly tools, in particular to a tool for removing a pin shaft of a crane on an offshore oil production platform. Background Art
[0002] An oil platform, or drilling rig, is a large structure located offshore that is used to drill wells to extract oil and natural gas and temporarily store it until the oil is transported to a refinery on land to crack the crude oil into products. The platform can be fixed to the seabed, may be an artificial island, or float on the sea. Multiple submarine oil wells can also be connected to an oil platform via pipelines. At the top of the oil platform, the most commonly used large machinery is a crane, which is used to transfer various equipment.
[0003] The pins on cranes are used in many places. Most pins and holes are designed with clearance fit. However, due to the humid marine environment and high salinity in the air, if the maintenance is not good, the pins over two years old will corrode and expand to varying degrees. In addition, the work on the crane, the space and site constraints make the pin removal work laborious and time-consuming. In the past, the removal of the pins of cranes was mostly done by manpower using a hammer to knock out the pins. Different sizes of hammers were used according to the tightness of the pins. Using a large hammer can easily flatten the pins, making it more difficult to remove. The pins of the cranes have not been active for a long time, and the internal corrosion and expansion have locked with the shaft hole. Utility Model Content
[0004] The utility model aims to provide a tool for removing the pin shaft of a crane on an offshore oil production platform, so as to solve the technical problems proposed in the background technology that the pin shaft is easily flattened by using a large hammer, making it more difficult to remove, the crane pin shaft is inactive for a long time, the internal corrosion and expansion, and the shaft hole is locked.
[0005] To achieve the above purpose, the specific technical scheme of the utility model is as follows: a tool for removing the pin shaft of a crane on an offshore oil production platform, comprising:
[0006] A tension unit, used to fix the whole tool, and a support unit installed inside the tension unit, the support unit is movably installed inside the tension unit, and a hydraulic unit is arranged at the upper end of the support unit;
[0007] The pulling unit comprises a positioning frame for installing the supporting unit and pulling claws installed on both sides of the positioning frame, one end of the pulling claw is connected to the positioning frame through a rotating shaft, and the positioning frame and the pulling claw are fixed through a traction part movably installed in the middle.
[0008] Preferably, the support unit comprises a lifting screw rod installed in a lifting manner inside the positioning frame and a support seat movably installed on the upper end of the lifting screw rod, and the upper end of the lifting screw rod is movably installed on the support seat via a bearing.
[0009] Preferably, an engaging groove is opened in the middle of the supporting seat, a positioning part is movably installed inside the engaging groove, a fixing ring is fixedly installed at the lower end of the hydraulic unit, and the fixing ring is fixedly installed inside the supporting seat through the positioning part.
[0010] Preferably, the positioning portion includes a mounting frame fixedly installed in the inner cavity of the support seat and a limiting groove opened at the upper end of the mounting frame, a telescopic card is slidably installed inside the limiting groove, a transmission button is fixedly installed at one end of the upper side of the telescopic card, a rotating disk is movably installed on the upper end of the mounting frame, an arc groove is penetrated through the upper end of the rotating disk, and the transmission button is movably installed inside the arc groove.
[0011] Preferably, a driving shaft is fixedly installed at the center of the rotating disk, the driving shaft passes through the mounting frame and is connected to a driving worm wheel, a driving worm is meshingly installed on one side of the driving worm wheel, and one end of the driving worm extends to the outside of the support seat.
[0012] Preferably, a threaded hole is provided in the middle of the positioning frame, mounting holes are provided on both sides of the positioning frame, the end of the traction portion is rotatably mounted inside the mounting hole by means of bolts, and a connecting hole is provided through the side of the pulling claw.
[0013] Preferably, a rotating head is fixedly mounted on the lower end of the lifting screw rod, and an insertion hole is provided on the upper end of the rotating head.
[0014] Preferably, a fixing groove is provided at the upper end of the fixing ring, the lower end of the hydraulic unit is embedded in the fixing groove for installation, an annular groove is opened at the lower end of the fixing ring, and the telescopic clamp is installed inside the annular groove.
[0015] Preferably, the traction part comprises a traction frame, and both ends of the traction frame are respectively mounted inside the mounting hole and the connecting hole opened on the positioning frame and the pulling claw by bolts.
[0016] Preferably, a telescopic screw is movably installed in the middle of the traction frame, both ends of the telescopic screw are respectively threadedly installed inside the traction frame, and an adjusting piece is fixedly installed in the middle of the telescopic screw. The threads of the telescopic screws arranged on both sides of the adjusting piece are in opposite directions and respectively match the threads of the traction frame slots.
[0017] The utility model of a pin removal tool for a crane on an offshore oil production platform has the following advantages:
[0018] The tool for removing the pin shaft of a crane on an offshore oil production platform can be used to snap-fit the pulling claws in the pulling unit and install them on both sides of the crane seat when disassembling the crane pin shaft. After fixing, the hydraulic unit installed on the upper end is adjusted to push upward, and then the pin shaft installed inside the crane seat is pushed out, so that the pin shaft can be pushed out of the crane seat conveniently. The tool is easy to carry and assemble, and can be installed and used with the help of the crane seat. The tool has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the tension unit and the support unit of the utility model;
[0022] Figure 3 This is a schematic diagram of the support base structure of the utility model;
[0023] Figure 4 This is a schematic diagram of the positioning part structure of the utility model;
[0024] Figure 5 This is a schematic diagram of the structure of the tension unit of the utility model;
[0025] Figure 6 This is a schematic diagram of the lifting screw structure of the utility model;
[0026] Figure 7 This is a schematic diagram of the fixing ring structure of the utility model;
[0027] Figure 8 It is a schematic diagram of the traction part structure of the utility model.
[0028] Explanation of the marks in the figure: 100, tension unit; 110, positioning frame; 111, threaded hole; 120, pulling claw; 121, connecting hole; 200, supporting unit; 210, lifting screw; 220, supporting seat; 221, fitting groove; 230, positioning part; 231, mounting frame; 232, limiting groove; 233, telescopic clamp; 234, transmission button; 235, rotating disk; 236, arc groove; 237, driving worm wheel; 238, driving worm; 240, insertion hole; 300, hydraulic unit; 310, fixing ring; 311, annular groove; 312, fixing groove; 400, traction part; 410, traction frame; 420, adjusting member; 430, telescopic screw. DETAILED DESCRIPTION
[0029] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.
[0030] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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 embodiments of the present invention.
[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0032] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0033] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.
[0034] In order to better understand the purpose, structure and function of the utility model, the utility model is further described in detail below with reference to the accompanying drawings, which is a tool for removing the pin of a crane on an offshore oil production platform.
[0035] like Figure 1-Figure 8 As shown, the utility model is a pin removal tool for an offshore oil production platform crane, comprising a tension unit 100 for fixing the overall tool, and a support unit 200 installed inside the tension unit 100 for supporting and fixing. The support unit 200 is movably lifted and installed inside the tension unit 100, and a hydraulic unit 300 for assisting the pin removal is arranged at the upper end of the support unit 200.
[0036] The pulling unit 100 includes a positioning frame 110 for installing the supporting unit 200 and a pulling claw 120 installed on both sides of the positioning frame 110 for connecting with the pin shaft fixing seat. One end of the pulling claw 120 is connected to the positioning frame 110 through a rotating shaft. The positioning frame 110 and the pulling claw 120 are fixed by a traction part 400 movably installed in the middle. A threaded hole 111 for matching and installing with the lifting screw rod 210 is opened in the middle of the positioning frame 110. Both sides of the positioning frame 110 are opened with mounting holes for installing the traction part 400. The end of the traction part 400 is rotatably installed in the mounting hole by bolts. The side of the pulling claw 120 is penetrated by a connecting hole 121 for fixing the pulling claw 120.
[0037] When disassembling the crane pin shaft, the pulling claws 120 in the pulling unit 100 can be snapped and installed on both sides of the crane base. After fixing, the hydraulic unit 300 installed on the upper end can be adjusted to push it upward, and then the pin shaft installed inside the crane base can be pushed out, which makes it convenient to push the pin shaft out of the crane base. It is easy to carry and assemble, and can be installed and used with the help of the crane base. It has a simple structure and is easy to use.
[0038] The support unit 200 includes a lifting screw rod 210 installed in the positioning frame 110 and a support seat 220 movably installed on the upper end of the lifting screw rod 210 for installing the hydraulic unit 300. The upper end of the lifting screw rod 210 is movably installed with the support seat 220 through a bearing. When the hydraulic unit 300 is in use, the lifting screw rod 210 can be rotated to lift the support seat 220, which is convenient for pushing the upper end of the hydraulic unit 300 upward, thereby better fitting the lower end of the pin shaft and conveniently ejecting the pin shaft.
[0039] The positioning portion 230 includes a mounting frame 231 fixedly mounted in the inner cavity of the support seat 220 and a limiting groove 232 provided at the upper end of the mounting frame 231. A telescopic clamp 233 for clamping and fixing the fixing ring 310 is slidably mounted inside the limiting groove 232. A transmission button 234 for driving the telescopic clamp 233 to move is fixedly mounted at one end of the upper side of the telescopic clamp 233. A rotating disk 235 for driving the telescopic clamp 233 at the upper end of the mounting frame 231 to move is movably mounted on the upper end of the mounting frame 231. An arc groove 236 is penetrated through the upper end of the turntable 235, and a transmission button 234 is movably installed inside the arc groove 236. A driving shaft for driving the rotating disk 235 to rotate is fixedly installed at the center of the rotating disk 235. The driving shaft passes through the mounting frame 231 and is connected to a driving worm gear 237. A driving worm 238 for driving the driving worm gear 237 to rotate is meshed and installed on one side of the driving worm gear 237. One end of the driving worm gear 238 extends to the outside of the support seat 220 for adjustment of the driving worm gear 238.
[0040] When fixing the hydraulic unit 300, the rotating part at the lower end of the support seat 220 can be adjusted to drive the driving worm 238 to rotate, drive the driving worm wheel 237 to rotate, and then the central axis drives the rotating disk 235 to rotate. The arc groove 236 opened at the upper end drives the transmission button 234 to move, and then drives the telescopic clamp 233 to extend outward and fit and fix with the bottom inner cavity of the hydraulic unit 300, so as to facilitate the fixation of the hydraulic unit 300 and avoid the hydraulic unit 300 falling off during installation, affecting the disassembly process.
[0041] A fitting groove 221 for embedding and fixing the hydraulic unit 300 is provided in the middle of the support seat 220, and a positioning portion 230 for fixing the hydraulic unit 300 is movably installed inside the fitting groove 221. A fixing ring 310 is fixedly installed on the lower end of the hydraulic unit 300. The fixing ring 310 is fixedly installed on the lower end of the hydraulic unit 300 by means of screws, gluing, etc. The fixing ring 310 is fixedly installed inside the support seat 220 through the positioning portion 230. When the hydraulic unit 300 is fixed, the fixing ring 310 fixedly installed on the lower end of the hydraulic unit 300 can facilitate the fixing of the hydraulic unit 300 in the fitting groove 221, and facilitates the matching installation of various hydraulic units 300.
[0042] A rotating head is fixedly installed at the lower end of the lifting screw rod 210 for driving the lifting screw rod 210 to rotate. A plurality of insertion holes 240 for driving the rotating head to rotate are opened at the upper end of the rotating head. A tool can be inserted into the insertion hole 240 to assist in rotating the rotating head, thereby facilitating the rotation of the lifting screw rod 210.
[0043] The upper end of the fixing ring 310 is provided with a fixing groove 312 for connecting and fixing with different types of hydraulic units 300. The lower end of the hydraulic unit 300 is embedded in the fixing groove 312 for installation. The lower end of the fixing ring 310 is provided with an annular groove 311 for fixing the fixing ring 310. The telescopic clamp 233 is installed inside the annular groove 311. After the hydraulic unit 300 is fixed, the hydraulic unit 300 can be installed into the fitting groove 221 at any angle and then the telescopic clamp 233 is clamped into the annular groove 311, which is convenient for fixing the hydraulic unit 300.
[0044] The traction part 400 includes a traction frame 410 for fixing the positioning frame 110 and the pulling claw 120. Both ends of the traction frame 410 are respectively installed in the mounting holes and connecting holes 121 opened on the positioning frame 110 and the pulling claw 120 by bolts. When fixing the tool, a suitable connecting hole 121 can be selected according to the opening degree of the pulling claw 120. The traction part 400 is used for fixing, which facilitates the adjustment of the opening degree of the pulling claw 120 and is more flexible to use.
[0045] A telescopic screw 430 for adjusting the distance between the two sides of the traction frame 410 is movably installed in the middle of the traction frame 410, and both ends of the telescopic screw 430 are respectively threadedly installed in the interior of the traction frame 410, and an adjusting piece 420 for adjusting the telescopic screw 430 is fixedly installed in the middle of the telescopic screw 430. The threads of the telescopic screws 430 arranged on both sides of the adjusting piece 420 are in opposite directions and match the notch threads of the traction frame 410 respectively. When the traction frame 410 is fixed, if the traction frame 410 shakes slightly, the telescopic screw 430 can be driven to rotate by rotating the adjusting piece 420, thereby adjusting the length of the traction frame 410, which can facilitate the adjustment of the rotation angle of the pulling claws 120 on both sides, and is more flexible to use.
[0046] The working principle of a tool for removing the pin shaft of a crane on an offshore oil production platform is as follows: when disassembling the pin shaft of the crane, the pulling claws 120 in the pulling unit 100 can be snapped and installed on both sides of the crane base. After fixing, the hydraulic unit 300 installed on the upper end is adjusted to push upward, and then the pin shaft installed inside the crane base is pushed out, so that the pin shaft can be pushed out of the crane base conveniently. The tool is easy to carry and assemble, and can be installed and used with the help of the crane base. The tool has a simple structure and is easy to use.
[0047] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.
Claims
1. A tool for removing pins from a crane on an offshore oil production platform, characterized in that: include A tension unit, used to fix the whole tool, and a support unit installed inside the tension unit, the support unit is movably installed inside the tension unit, and a hydraulic unit is arranged at the upper end of the support unit; The pulling unit comprises a positioning frame for installing the supporting unit and pulling claws installed on both sides of the positioning frame, one end of the pulling claw is connected to the positioning frame through a rotating shaft, and the positioning frame and the pulling claw are fixed through a traction part movably installed in the middle.
2. The offshore oil production platform crane pin removal tool according to claim 1, characterized in that: The support unit comprises a lifting screw rod installed in the positioning frame and a support seat movably installed on the upper end of the lifting screw rod. The upper end of the lifting screw rod is movably installed on the support seat through a bearing.
3. The pin removal tool for offshore oil production platform crane according to claim 2 is characterized by: An engaging groove is provided in the middle of the support seat, a positioning part is movably installed inside the engaging groove, a fixing ring is fixedly installed at the lower end of the hydraulic unit, and the fixing ring is fixedly installed inside the support seat through the positioning part.
4. The pin removal tool for crane of offshore oil production platform according to claim 3 is characterized by: The positioning part includes a mounting frame fixedly installed in the inner cavity of the support seat and a limiting groove opened at the upper end of the mounting frame, a telescopic card is slidably installed inside the limiting groove, a transmission button is fixedly installed at one end of the upper side of the telescopic card, a rotating disk is movably installed on the upper end of the mounting frame, an arc groove is penetrated through the upper end of the rotating disk, and the transmission button is movably installed inside the arc groove.
5. The pin removal tool for crane of offshore oil production platform according to claim 4 is characterized by: A driving shaft is fixedly installed at the center of the rotating disk. The driving shaft passes through the mounting frame and is connected to a driving worm wheel. A driving worm is meshingly installed on one side of the driving worm wheel. One end of the driving worm extends to the outside of the support seat.
6. The pin removal tool for offshore oil production platform crane according to claim 5, characterized in that: A threaded hole is provided in the middle of the positioning frame, mounting holes are provided on both sides of the positioning frame, the end of the traction part is rotatably mounted inside the mounting hole by means of bolts, and a connecting hole is provided through the side of the pulling claw.
7. The pin removal tool for crane of offshore oil production platform according to claim 6, characterized in that: A rotating head is fixedly mounted on the lower end of the lifting screw rod, and an inserting hole is opened on the upper end of the rotating head.
8. The pin removal tool for crane of offshore oil production platform according to claim 7, characterized in that: The upper end of the fixing ring is provided with a fixing groove, the lower end of the hydraulic unit is embedded in the fixing groove for installation, the lower end of the fixing ring is provided with an annular groove, and the telescopic clamp is installed inside the annular groove.
9. The offshore oil production platform crane pin removal tool according to claim 8, characterized in that: The traction part comprises a traction frame, and both ends of the traction frame are respectively mounted on the mounting hole and the connecting hole opened on the positioning frame and the pulling claw through bolts.
10. The offshore oil production platform crane pin removal tool according to claim 9, characterized in that: A telescopic screw is movably installed in the middle of the traction frame, and both ends of the telescopic screw are respectively threadedly installed inside the traction frame. An adjusting piece is fixedly installed in the middle of the telescopic screw. The threads of the telescopic screws arranged on both sides of the adjusting piece are in opposite directions and respectively match the threads of the traction frame slots.