CN210790584U - Tensioning mechanism for pipeline cutting machine - Google Patents
Tensioning mechanism for pipeline cutting machine Download PDFInfo
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- CN210790584U CN210790584U CN201920953335.3U CN201920953335U CN210790584U CN 210790584 U CN210790584 U CN 210790584U CN 201920953335 U CN201920953335 U CN 201920953335U CN 210790584 U CN210790584 U CN 210790584U
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- sliding sleeve
- tensioning mechanism
- tensioning
- oil cylinder
- adjustable pull
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Abstract
A tensioning mechanism for a pipeline cutting machine comprises a frame, an upper tensioning mechanism and a lower tensioning mechanism, wherein the upper tensioning mechanism comprises an upper tensioning oil cylinder, a plurality of supporting arms and a plurality of adjustable pull rods; one end of the supporting arm is fixed on the frame, and the middle part of the supporting arm is hinged with the adjustable pull rod; the frame is provided with a central tube, and the central tube is provided with an upper sliding sleeve and a lower sliding sleeve.
Description
Technical Field
The utility model relates to a straining device, specifically speaking relates to a straining device for pipe cutting machine.
Background
The offshore oil occupies a very important position in the whole oil industry, with the development of the offshore oil industry, more and more petroleum production facilities are built in an operating sea area, and with the continuous exhaustion of oil exploitation and resources, the service life of the platform is close to the end sound. According to the regulations of international convention and related domestic regulations, related facilities must be dismantled after the oil and gas field is stopped. Since 1973 the removal of the 1 st ocean platform in the gulf of mexico, there have been, by incomplete statistics, approximately 2000 worldwide. In China, the platform dismantling is a new project, and according to statistics, tens of platforms are dismantled in China in the coming years. The demolition of the waste platform becomes a new high-technology industry of ocean engineering, wherein the demolition of a jacket, which is a main component of a waste pile foundation platform, is particularly important, the demolition of the jacket is more related to the technical field, and is limited by various factors such as economy, technology, safety, environmental protection and the like, and once an accident occurs, huge loss is caused. The dismantling of the abandoned offshore oil platform is very important for the offshore oil industry, and has important significance for ensuring the marine environment, navigation, fishery production and the like of an operation area. Some situations are not conducive to the placement of external cutting devices for the pipeline, because the structure of the subsea jacket and the external environment are quite complex. At the moment, the structure in the pipeline is relatively simple, and the placing of the cutting equipment and the smooth operation of the cutting operation are facilitated.
Patent No. 201520710393.5 discloses an ocean deep water cutting device, including a stationary part frame and a rotating part frame, characterized in that: the cutting device is characterized in that the fixed part frame is connected with the rotating part frame through a rotating assembly, the rotating assembly comprises a hydraulic motor, a speed reducing machine and an encoder assembly, the hydraulic motor is installed on the fixed part frame and drives the rotating part frame to rotate after the speed of the speed reducing machine is reduced, a tensioning mechanism used for fixing the cutting device on a cut underwater pipeline is installed on the fixed part frame, a telescopic oil cylinder is installed on the rotating part frame, and a high-pressure water spraying gun head is installed at the end part of a piston rod of the telescopic oil cylinder through a panel. The tensioning mechanism is divided into an upper tensioning mechanism and a lower tensioning mechanism, the upper tensioning mechanism comprises an upper tensioning oil cylinder, a plurality of supporting arms and a plurality of adjustable pull rods, one end of each supporting arm is hinged with the side wall of the upper tensioning oil cylinder, the other end of each supporting arm is hinged with a grasping claw block, one end of each adjustable pull rod is hinged with the top of a piston rod of the upper tensioning oil cylinder, the other end of each adjustable pull rod is hinged with the middle of the corresponding supporting arm, the lower tensioning mechanism comprises a lower tensioning oil cylinder, a plurality of supporting arms and a plurality of adjustable pull rods, one end of each supporting arm is hinged with the side wall of the lower tensioning oil cylinder, the other end of each supporting arm is hinged with the grasping claw block; in the upper tensioning mechanism or the lower tensioning mechanism, the number of the supporting arms and the number of the adjustable pull rods are three and are uniformly distributed. Through many years of practice, the utility model discloses the people discover, above-mentioned cutting equipment's straining device has following shortcoming: the fixing mode of the tensioning oil cylinder, the supporting arm and the adjustable pull rod is as follows: one end of the supporting arm is hinged with the side wall of the upper tensioning oil cylinder, the other end of the supporting arm is hinged with the grasping claw block, one end of the adjustable pull rod is hinged with the top of a piston rod of the upper tensioning oil cylinder, and the other end of the adjustable pull rod is hinged with the middle part of the supporting arm. Because the adjustable pull rod is directly hinged with the piston rod of the tensioning oil cylinder, no buffer exists between the piston rod and the adjustable pull rod, and the piston rod and the adjustable pull rod are easily damaged due to uneven stress.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model aims at providing a tensioning mechanism which can stabilize the acting force between a piston rod and an adjustable pull rod.
The utility model adopts the technical proposal that: a tensioning mechanism for a pipeline cutting machine comprises a frame, an upper tensioning mechanism and a lower tensioning mechanism, wherein the upper tensioning mechanism comprises an upper tensioning oil cylinder, a plurality of supporting arms and a plurality of adjustable pull rods; one end of the supporting arm is fixed on the frame, and the middle part of the supporting arm is hinged with the adjustable pull rod; the frame is provided with a central tube, the central tube is provided with an upper sliding sleeve and a lower sliding sleeve, a piston rod of the upper tensioning oil cylinder is hinged with the upper sliding sleeve, and an adjustable pull rod of the upper tensioning mechanism is hinged with the upper sliding sleeve; and a piston rod of the lower tensioning oil cylinder is hinged with the lower sliding sleeve, and an adjustable pull rod of the lower tensioning mechanism is hinged with the lower sliding sleeve.
Furthermore, the upper sliding sleeve and the lower sliding sleeve are respectively provided with an idler wheel for assisting the upper sliding sleeve and the lower sliding sleeve to freely and flexibly move up and down on the central tube.
Preferably, the upper tensioning mechanism comprises an upper tensioning oil cylinder, three supporting arms and three adjustable pull rods, and the lower tensioning mechanism comprises a lower tensioning oil cylinder, three supporting arms and three adjustable pull rods.
Preferably, the upper sliding sleeve and the lower sliding sleeve are respectively provided with at least three groups of rollers which are uniformly distributed and used for assisting the upper sliding sleeve and the lower sliding sleeve to freely and flexibly move up and down on the central pipe.
Preferably, the upper sliding sleeve and the lower sliding sleeve comprise roller fixing seats for mounting and fixing the rollers.
Preferably, the upper sliding sleeve and the lower sliding sleeve comprise adjustable pull rod fixing seats for connecting and fixing the adjustable pull rod
Preferably, the upper sliding sleeve and the lower sliding sleeve comprise piston rod fixing seats for connecting and fixing the piston rod of the tensioning oil cylinder.
The working principle of the utility model is as follows, under the non-working condition, the tensioning oil cylinder is in the withdrawal state, and the straining device is in the complete withdrawal state this moment, can not cause the influence to this equipment in transportation and receiving and dispatching in the pipeline, and when the rodless chamber of tensioning oil cylinder advances pressure oil, the piston rod of tensioning oil cylinder promotes the slip cap and moves down, and the slip cap moves down and promotes adjustable pull rod and extends, and adjustable pull rod extends and promotes the support arm extension, and until the inner wall of support arm and target pipeline closely laminates, at this moment the straining device is in operating condition.
The utility model discloses an useful part lies in, adopts the utility model discloses afterwards, can make straining device's tensioning action more smooth and light, avoid damaging piston rod and adjustable pull rod.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of the upper sliding sleeve and the lower sliding sleeve of the present invention;
fig. 3 is a schematic structural view of the upper sliding sleeve, the lower sliding sleeve and the roller of the present invention.
In the figure, 1. frame; 2. a central tube; 3. an upper tensioning oil cylinder; 4. a support arm; 5. an upper sliding sleeve; 6. a lower tensioning cylinder; 7. a lower sliding sleeve; 41. an adjustable pull rod; 51. a roller fixing seat; 52. an adjustable pull rod fixing seat; 53. a roller; 54. piston rod fixing base.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, 2 and 3, a tensioning mechanism for a pipe cutting machine comprises a frame (1) and upper and lower tensioning mechanisms, wherein the upper tensioning mechanism comprises an upper tensioning cylinder (3), a plurality of supporting arms (4) and a plurality of adjustable pull rods (41), and the lower tensioning mechanism comprises a lower tensioning cylinder (6), a plurality of supporting arms and a plurality of adjustable pull rods; one end of the supporting arm is fixed on the frame, and the middle part of the supporting arm is hinged with the adjustable pull rod; the frame is provided with a central tube (2), the central tube is provided with an upper sliding sleeve (5) and a lower sliding sleeve (7), a piston rod of the upper tensioning oil cylinder is hinged with the upper sliding sleeve, and an adjustable pull rod of the upper tensioning mechanism is hinged with the upper sliding sleeve; and a piston rod of the lower tensioning oil cylinder is hinged with the lower sliding sleeve, and an adjustable pull rod of the lower tensioning mechanism is hinged with the lower sliding sleeve.
Furthermore, the upper sliding sleeve and the lower sliding sleeve are respectively provided with a roller (53) for assisting the upper sliding sleeve and the lower sliding sleeve to freely and flexibly move up and down on the central tube.
Preferably, the upper tensioning mechanism comprises an upper tensioning oil cylinder, three supporting arms and three adjustable pull rods, and the lower tensioning mechanism comprises a lower tensioning oil cylinder, three supporting arms and three adjustable pull rods.
Preferably, the upper sliding sleeve and the lower sliding sleeve are respectively provided with at least three groups of rollers which are uniformly distributed and used for assisting the upper sliding sleeve and the lower sliding sleeve to freely and flexibly move up and down on the central pipe.
Preferably, the upper and lower sliding sleeves include roller holders (51) for mounting and fixing the rollers.
Preferably, the upper sliding sleeve and the lower sliding sleeve comprise adjustable pull rod fixing seats (52) for connecting and fixing the adjustable pull rods.
Preferably, the upper sliding sleeve and the lower sliding sleeve comprise a piston rod fixing seat (54) for connecting and fixing a piston rod of the tensioning oil cylinder.
Although the preferred embodiments of the present invention have been described in detail, the invention is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and the equivalents or substitutions are included in the scope of protection defined by the claims of the present application.
Claims (4)
1. A tensioning mechanism for a pipeline cutting machine comprises a frame, an upper tensioning mechanism and a lower tensioning mechanism, wherein the upper tensioning mechanism comprises an upper tensioning oil cylinder, a plurality of supporting arms and a plurality of adjustable pull rods; one end of the supporting arm is fixed on the frame, and the middle part of the supporting arm is hinged with the adjustable pull rod; the frame is provided with a central tube, the central tube is provided with an upper sliding sleeve and a lower sliding sleeve, a piston rod of the upper tensioning oil cylinder is hinged with the upper sliding sleeve, and an adjustable pull rod of the upper tensioning mechanism is hinged with the upper sliding sleeve; a piston rod of the lower tensioning oil cylinder is hinged with the lower sliding sleeve, and an adjustable pull rod of the lower tensioning mechanism is hinged with the lower sliding sleeve; the upper sliding sleeve and the lower sliding sleeve are respectively provided with a roller for assisting the sliding sleeve to freely and flexibly move up and down on the central pipe; the upper tensioning mechanism comprises an upper tensioning oil cylinder, three supporting arms and three adjustable pull rods, and the lower tensioning mechanism comprises a lower tensioning oil cylinder, three supporting arms and three adjustable pull rods; the upper sliding sleeve and the lower sliding sleeve are respectively provided with at least three groups of rollers which are uniformly distributed and used for assisting the upper sliding sleeve and the lower sliding sleeve to freely and flexibly move up and down on the central pipe.
2. The tensioning mechanism for a pipe cutting machine according to claim 1, wherein the upper and lower sliding sleeves include roller holders for mounting and holding the rollers.
3. The tensioning mechanism for a pipe cutting machine according to claim 1, wherein the upper and lower sliding sleeves include adjustable tie rod holders for attaching and securing the adjustable tie rods.
4. The tensioning mechanism for pipe cutting machines according to claim 1, characterized in that the upper and lower sliding sleeves comprise piston rod holders for connecting and holding the piston rods of the tensioning cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920953335.3U CN210790584U (en) | 2019-06-24 | 2019-06-24 | Tensioning mechanism for pipeline cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920953335.3U CN210790584U (en) | 2019-06-24 | 2019-06-24 | Tensioning mechanism for pipeline cutting machine |
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| Publication Number | Publication Date |
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| CN210790584U true CN210790584U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920953335.3U Active CN210790584U (en) | 2019-06-24 | 2019-06-24 | Tensioning mechanism for pipeline cutting machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385647A (en) * | 2019-06-24 | 2019-10-29 | 天津德瑞安海洋工程有限公司 | A kind of strainer for pipe cutter |
-
2019
- 2019-06-24 CN CN201920953335.3U patent/CN210790584U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385647A (en) * | 2019-06-24 | 2019-10-29 | 天津德瑞安海洋工程有限公司 | A kind of strainer for pipe cutter |
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