CN216180136U - Special tool for mounting gearbox piston of offshore platform crane - Google Patents
Special tool for mounting gearbox piston of offshore platform crane Download PDFInfo
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- CN216180136U CN216180136U CN202122509550.4U CN202122509550U CN216180136U CN 216180136 U CN216180136 U CN 216180136U CN 202122509550 U CN202122509550 U CN 202122509550U CN 216180136 U CN216180136 U CN 216180136U
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- offshore platform
- pressing plate
- special tool
- flange pressing
- platform crane
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Abstract
A special tool for offshore platform crane gearbox piston installation comprising: the flange pressing plate is symmetrically provided with screw rods in holes at two ends of the flange pressing plate, and the hand wheel is fixed on the screw rods through nuts; the flange pressing plate is a gradual change plate with two small ends and a large middle part; bolt holes for the screw to pass through are arranged at the two ends of the flange pressing plate; the hand wheel is fixedly arranged on the screw rod. The utility model can ensure that the stress of the piston is uniform, and the mounting quality of the star seal is ensured under the condition of in-place mounting under the condition of concentric axis; moreover, the risk that copper scraps enter the hydraulic oil due to traditional knocking installation is avoided, and the quality of the hydraulic oil is guaranteed; simultaneously, can promote the success rate of installation and solve the copper scraps and remain in the internal problem of piston comprehensively at the application of offshore platform hoist gear case in the special inspection process.
Description
Technical Field
The utility model belongs to the field of offshore oil engineering, and particularly relates to a special tool for mounting a gearbox piston of an offshore platform crane.
Background
At present, in the maintenance installation process of daily offshore platform crane gear box piston, because there is not dedicated piston mounting tool, generally, adopt two the same red bar copper of size length to strike the piston simultaneously by two operating personnel and install, because there is the difference in the accuracy that two operating personnel's hard dynamics and strike simultaneously, consequently, lead to the piston under the expanding action of star type soft seal, hardly pack into in the sealed cavity cover, the success rate of installation is lower. When two operators knock and mount the star-shaped soft seal, the pistons obliquely enter under the condition of uneven stress, so that the newly mounted star-shaped soft seal is easily cut off and damaged; moreover, the inclined entering of the piston can cause friction damage to the surfaces of the piston body and the cavity sleeve, and the installation quality and the use quality are influenced to a great extent. Simultaneously, by two operating personnel strike the mounting means, still very easily fall into the copper fillings that the red bar copper dropped into the piston seal body that has cleaned well, can't clear up out, the copper fillings that it leads to rub in the piston body operation, seriously influence hydraulic oil quality and star type soft seal effect.
The offshore platform crane belongs to one of key equipment of an offshore platform, and a winch gearbox is an important precise operation part of the crane, so that the aspects of reliability, safety, maintenance convenience and the like are improved, the safe operation of the crane can be ensured, and the crane is more convenient to maintain. Once the brake failure condition of the winch gearbox occurs, safety production accidents can be caused, and casualties or property loss can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a special tool for installing a gearbox piston of an offshore platform crane, and aims to solve the technical problems that when two operators knock and install the gearbox piston, the success rate of installing the winch gearbox piston is low, star-shaped soft seal is easily cut off and damaged, and copper bar copper scraps are left in a piston sealing body, so that the quality of hydraulic oil and the star-shaped soft seal sealing effect are seriously affected.
In order to achieve the purpose, the specific technical scheme of the special tool for installing the gearbox piston of the offshore platform crane comprises the following steps:
a special tool for offshore platform crane gearbox piston installation comprising: the flange pressing plate is symmetrically provided with screw rods in holes at two ends of the flange pressing plate, and the hand wheel is fixed on the screw rods through nuts; the flange pressing plate is a gradual change plate with two small ends and a large middle part; bolt holes for the screw to pass through are arranged at the two ends of the flange pressing plate; the hand wheel is fixedly arranged on the screw rod.
Further, the flange pressing plate is made of a metal plate.
Furthermore, a center hole is formed in the center of the metal plate, and the center hole is a round hole.
Further, the screw rod is in a long rod shape and is provided with threads.
Furthermore, the hand wheel is of a horn-shaped structure with a small bottom and a large upper part; the bottom of the device is round, the middle of the device is hollow, and the device is connected to the outer circle by three supports.
Furthermore, the excircle of the hand wheel is of a five-petal star-shaped structure.
Further, both ends of the gradual change plate are arc-shaped.
The special tool for installing the gearbox piston of the offshore platform crane has the following advantages:
1. the utility model adopts the flange pressing plate and screw hand wheel type design, utilizes the winch gearbox to press the flange bolt hole, and is assisted with the diagonal fastening installation of the flange pressing plate and the screw hand wheel, thereby ensuring the uniform stress of the piston;
2. according to the utility model, the mounting quality of the star seal is ensured under the condition that the winch gearbox gland flange plane is taken as a reference surface and the hand wheel bolt is manually fastened and the winch gearbox gland flange plane is mounted in place under the condition of concentric axis;
3. the special tool is adopted for installation, so that the risk that copper scraps enter hydraulic oil in the traditional knocking installation process is avoided, and the quality of the hydraulic oil is ensured;
4. the method can be applied to the special inspection process of the winch gearbox of the offshore platform crane, and can be further applied to offshore platform cranes in a plurality of operation areas, so that the success rate of installation is comprehensively improved, and the problem that copper scraps remain in a piston body is solved;
5. by adopting the utility model for installation, the risk that copper scraps enter the hydraulic oil caused by the traditional knocking installation is avoided, and the quality of the hydraulic oil is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic side view of the present invention.
The notation in the figure is:
1. a flange pressing plate; 2. a base; 3. a screw; 4. a nut; 5. a hand wheel; 6. a central bore.
Detailed Description
For better understanding of the purpose, structure and function of the utility model, a special tool for installation of a gearbox piston of an offshore platform crane according to the utility model will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 2, the present invention includes: the flange pressing plate 1 is provided with screw rods 3 symmetrically arranged in holes at two ends of the flange pressing plate 1, and hand wheels 5 fixed on the screw rods 3 through nuts 4; the flange pressing plate 1 is a gradual change plate with two small ends and a large middle part; bolt holes for the screw rods 3 to pass through are arranged at the two ends of the flange pressing plate 1; the hand wheel 5 adopts a bolt connection mode and is fixedly arranged on the screw rod 3 by a nut 4.
The flange pressing plate 1 is made of metal plates such as steel and stainless steel plates; and a center hole 6 is arranged at the center of the metal plate, and the center hole 6 is a round hole.
The screw 3 is in the shape of a long rod and is provided with a thread.
The hand wheel 5 is of a horn-shaped structure with a small bottom and a large upper part; the bottom of the support is round, the middle of the support is hollow, and the support is connected to the outer circle by three supports in a welding mode.
The outer circle of the hand wheel 5 is a five-petal star-shaped structure.
The two ends of the gradual change plate are in arc shapes.
When the winch gearbox gland plate is used, the bolt holes in the winch gearbox gland plate flange are utilized, the flange pressure plate 1, the screw rods 3 and the hand wheel 5 are used for being installed in a diagonal fastening mode, the winch gearbox gland plate and the flange plane are used as reference surfaces, the bolts 3 and the nuts 4 on the hand wheel 5 are manually fastened, the piston is guaranteed to be installed in place under the conditions of uniform stress and concentric axis, and the installation quality of star-shaped sealing is guaranteed.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The flange pressing plate, the screw rod and the nut are in the prior art, and the unexplained technology is in the prior art, so that the details are not repeated.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. A special tool for offshore platform crane gearbox piston installation, comprising: the flange pressing plate is symmetrically provided with screw rods in holes at two ends of the flange pressing plate, and the hand wheel is fixed on the screw rods through nuts; the flange pressing plate is a gradual change plate with two small ends and a large middle part; bolt holes for the screw to pass through are arranged at the two ends of the flange pressing plate; the hand wheel is fixedly arranged on the screw rod.
2. The specialized tool for offshore platform crane gearbox piston installation according to claim 1, wherein the flange platen is made of sheet metal.
3. The special tool for offshore platform crane gearbox piston installation according to claim 2, wherein the metal plate is provided with a central hole in the center, and the central hole is a circular hole.
4. The special tool for offshore platform crane gearbox piston installation according to claim 1, wherein the screw is elongated rod shaped with threads thereon.
5. The special tool for installation of offshore platform crane gearbox pistons according to claim 1, wherein the hand wheel is of a trumpet-shaped structure with a small bottom and a large upper part; the bottom of the device is round, the middle of the device is hollow, and the device is connected to the outer circle by three supports.
6. The special tool for offshore platform crane gearbox piston installation according to claim 1 or 4, wherein the outer circle of the hand wheel is a five-lobed star-like structure.
7. The special tool for offshore platform crane gearbox piston installation according to claim 1, wherein the ends of the gradually changing plate are arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122509550.4U CN216180136U (en) | 2021-10-19 | 2021-10-19 | Special tool for mounting gearbox piston of offshore platform crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122509550.4U CN216180136U (en) | 2021-10-19 | 2021-10-19 | Special tool for mounting gearbox piston of offshore platform crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216180136U true CN216180136U (en) | 2022-04-05 |
Family
ID=80883993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122509550.4U Active CN216180136U (en) | 2021-10-19 | 2021-10-19 | Special tool for mounting gearbox piston of offshore platform crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216180136U (en) |
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2021
- 2021-10-19 CN CN202122509550.4U patent/CN216180136U/en active Active
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