Ship and ocean engineering pipeline welding centering auxiliary device

Abstract

The utility model relates to the technical field of pipeline welding, and discloses a ship and ocean engineering pipeline welding centering auxiliary device which comprises a workbench and supporting legs fixedly installed at the four corners of the bottom of the workbench, and the lower ends of the supporting legs are jointly and fixedly provided with a fixing base. Sliding plates are slidably mounted on the two sides of the top of the workbench correspondingly, a pipeline can be supported through the arrangement of an n-shaped plate, a hydraulic cylinder B, a pushing plate, a moving rod and an arc-shaped supporting plate, the height of the arc-shaped supporting plate can be adjusted through the arrangement of the hydraulic cylinder B, and therefore welding centering work can be conveniently carried out; through the arrangement of the fixing column, the circular plate, the bearing plate, a hydraulic cylinder C, a rack plate, a movable gear, a rotating gear, an arc-shaped groove, a sliding shaft, a moving plate, an arc-shaped plate and a transmission gear, the multiple arc-shaped plates can be driven to move outwards, and therefore a pipeline can be expanded and fixed, and the centering work of the pipeline is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline welding, in particular to a centering auxiliary device for pipeline welding of ships and marine engineering. Background Art

[0002] Naval architecture and marine engineering is a discipline that studies the working principles of ship engines. In the field of marine engineering and shipbuilding, pipelines are a major way of transmitting power, transporting steam, water, oil, etc., which creates a large demand for pipelines. This makes pipeline design, processing, welding and installation a systematic project with high technical requirements. During the butt welding process, the two pipelines need to be aligned. The efficiency and accuracy of the alignment affect the processing efficiency and service life of the pipeline.

[0003] When using existing ship and marine engineering pipeline welding centering auxiliary devices, most of them are manually operated by operators to fix the centering, which requires multiple measurements and adjustments to achieve accurate positioning. This not only leads to high labor intensity and low efficiency for workers, but also makes it difficult to control the centering accuracy, and also causes delays in construction period.

[0004] Therefore, we propose a ship and marine engineering pipeline welding centering auxiliary device to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a ship and marine engineering pipeline welding centering auxiliary device to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ship and marine engineering pipeline welding centering auxiliary device, comprising a workbench and supporting legs fixedly installed at the four corners of the bottom of the workbench, the lower ends of the supporting legs are commonly fixedly installed with a fixed seat, and sliding plates are slidably installed on both sides of the top of the workbench, hydraulic cylinders A are fixedly installed at the lower part of the outer side of the sliding plate, and a lifting assembly is installed at the bottom of the workbench, and clamping assemblies are installed on both sides of the top of the workbench.

[0007] Preferably, L-shaped support plates are fixedly mounted on the outer ends of the hydraulic cylinders A, and the inner sides of the L-shaped support plates are fixedly mounted on the workbenches.

[0008] Preferably, the lifting assembly includes an n-shaped plate arranged below the bottom of the workbench and a hydraulic cylinder B fixedly installed in the middle of the top of the inner cavity of the n-shaped plate, the bottom of the n-shaped plate is fixedly installed on a fixed seat, and the power end of the hydraulic cylinder B slides through and extends to the outside of the n-shaped plate, the power end of the hydraulic cylinder B is fixedly installed with a push plate, and moving rods are fixedly installed on both sides of the top of the push plate, the upper ends of the moving rods slide through and extend to the outside of the workbench, and the upper ends of the moving rods are fixedly installed with arc-shaped support plates.

[0009] Preferably, the clamping assembly includes a fixed column fixedly installed on the inner side of a sliding plate on one side and a circular plate fixedly installed on the inner end of the fixed column, a rotating gear is movably installed at the middle part of the inner side of the circular plate, and a plurality of sliding shafts are slidably installed on the rotating gear at equal intervals, a movable plate is fixedly installed at one end of the sliding shaft, and a plurality of movable grooves are opened at equal intervals at the edge of the inner side of the circular plate, the movable plates are slidably installed in the inner cavities of adjacent movable grooves, and the outer ends of the movable plates extend to the outside of the circular plates, and arc plates are fixedly installed on the outer ends of the movable plates, and a transmission gear is meshed on the front side of the rotating gear.

[0010] Preferably, a plurality of arc-shaped grooves are formed on the rotating gear at equal intervals, and the output shafts of the sliding shaft are respectively slidably penetrated and installed in the inner cavities of the arc-shaped grooves.

[0011] Preferably, a bearing plate is fixedly installed on the upper part of the front side of the outer side of the circular plate, and a hydraulic cylinder C is fixedly installed on the bottom of the bearing plate, a rack plate is fixedly installed on the power end of the hydraulic cylinder C, a movable gear is meshed on the front side of the rack plate, a transmission rod is fixedly installed in the middle part of the inner side of the movable gear, and the inner end of the transmission rod movably extends through the outer side of the circular plate, and the inner end of the transmission rod is fixedly connected to the transmission gear.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The n-shaped plate, hydraulic cylinder B, push plate, moving rod and arc-shaped support plate can be used to support the pipeline, and the hydraulic cylinder B can be used to adjust the height of the arc-shaped support plate, thereby facilitating the welding centering work.

[0014] 2. Through the arrangement of fixed columns, circular plates, bearing plates, hydraulic cylinders C, rack plates, movable gears, rotating gears, arc grooves, sliding shafts, movable plates, arc plates and transmission gears, several arc plates can be driven to move outward, thereby expanding and fixing the pipeline, thereby realizing the centering of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall stereogram of the utility model;

[0016] Figure 2It is a left side stereogram of the utility model;

[0017] Figure 3 It is a front top perspective view of the utility model;

[0018] Figure 4 It is a partial overall stereogram of the utility model;

[0019] Figure 5 It is a partial cross-sectional expanded stereoscopic view of the utility model;

[0020] Figure 6 It is a partial cross-sectional stereoscopic view of the circular plate of the utility model;

[0021] Figure 7 For the utility model Figure 4 Enlarged view of point A in the middle;

[0022] Figure 8 For the utility model Figure 5 Enlarged view of point B in the middle.

[0023] In the figure: 1. workbench; 2. supporting leg; 3. fixed seat; 4. sliding plate; 5. hydraulic cylinder A; 51. L-shaped supporting plate; 6. lifting assembly; 61. n-shaped plate; 62. hydraulic cylinder B; 63. pushing plate; 64. moving rod; 65. arc-shaped supporting plate; 7. clamping assembly; 71. fixed column; 72. circular plate; 721. bearing plate; 722. hydraulic cylinder C; 723. rack plate; 724. movable gear; 73. rotating gear; 731. arc-shaped groove; 74. sliding shaft; 75. moving plate; 76. arc-shaped plate; 77. transmission gear. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-5 and Figure 7A ship and marine engineering pipeline welding centering auxiliary device comprises a workbench 1 and supporting legs 2 fixedly installed at the four corners of the bottom of the workbench 1, a fixing seat 3 is fixedly installed at the lower ends of the supporting legs 2, and sliding plates 4 are slidably installed on both sides of the top of the workbench 1, and hydraulic cylinders A5 are fixedly installed at the lower parts of the outer sides of the sliding plates 4, and a lifting component 6 is installed at the bottom of the workbench 1, and clamping components 7 are installed on both sides of the top of the workbench 1. The lifting component 6 can be used to lift the pipeline and adjust its height, and the clamping component 7 can be used to expand and fix the pipeline, which is convenient for the centering work.

[0026] The outer ends of the hydraulic cylinder A5 are fixedly mounted with L-shaped support plates 51, and the inner sides of the L-shaped support plates 51 are fixedly mounted on the workbench 1. The L-shaped support plates 51 can support the hydraulic cylinder A5.

[0027] The lifting assembly 6 includes an n-shaped plate 61 arranged below the bottom of the workbench 1 and a hydraulic cylinder B62 fixedly installed in the middle of the top of the inner cavity of the n-shaped plate 61. The bottom of the n-shaped plate 61 is fixedly installed on the fixed seat 3, and the power end of the hydraulic cylinder B62 slides through and extends to the outside of the n-shaped plate 61. The power end of the hydraulic cylinder B62 is fixedly installed with a push plate 63, and moving rods 64 are fixedly installed on both sides of the top of the push plate 63. The upper ends of the moving rods 64 slide through and extend to the outside of the workbench 1, and the upper ends of the moving rods 64 are fixedly installed with arc-shaped support plates 65. The setting of the arc-shaped support plate 65 can support the pipeline, and the setting of the hydraulic cylinder B62 can adjust the height of the arc-shaped support plate 65.

[0028] In this embodiment: when in use, the pipelines to be aligned can be placed on both sides of the arc-shaped support plate 65 respectively, and their height can be adjusted after placement. The operation of the hydraulic cylinder B62 will drive the push plate 63 to move upward. When the push plate 63 moves upward, the arc-shaped support plate 65 will be driven upward through the moving rod 64. At this time, the pipeline can be driven to move upward to a suitable height, and then it can be clamped and fixed.

[0029] Embodiment 2: This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 and Figure 5-8The clamping assembly 7 includes a fixed column 71 fixedly mounted on the inner side of the sliding plate 4 on one side and a circular plate 72 fixedly mounted on the inner end of the fixed column 71. A rotating gear 73 is movably mounted at the middle part of the inner side of the circular plate 72, and a number of sliding shafts 74 are slidably penetrated and mounted on the rotating gear 73 at equal intervals. A moving plate 75 is fixedly mounted on one end of the sliding shaft 74, and a number of moving grooves are evenly spaced at the edge of the inner side of the circular plate 72. The moving plates 75 are slidably mounted in the inner cavities of adjacent moving grooves, and the outer ends of the moving plates 75 extend to the outer sides of the circular plate 72, and the outer ends of the moving plates 75 are fixedly mounted with arc plates 76, and a transmission gear 77 is meshed on the front side of the rotating gear 73. The inner cavity of the pipeline can be opened and fixed by the arrangement of the arc plate 76.

[0030] A plurality of arc grooves 731 are formed at equal intervals on the rotating gear 73 , and the output shafts of the sliding shaft 74 are respectively slidably penetrated and installed in the inner cavity of the arc grooves 731 , and the arrangement of the arc grooves 731 can drive the sliding shaft 74 to move inward and outward.

[0031] A bearing plate 721 is fixedly installed on the upper front side of the outer side of the circular plate 72, and a hydraulic cylinder C722 is fixedly installed on the bottom of the bearing plate 721. A rack plate 723 is fixedly installed on the power end of the hydraulic cylinder C722. A movable gear 724 is meshed on the front side of the rack plate 723. A transmission rod is fixedly installed in the middle part of the inner side of the movable gear 724, and the inner end of the transmission rod movably extends through the outer side of the circular plate 72. The inner end of the transmission rod is fixedly connected to the transmission gear 77, which is convenient for driving the transmission gear 77 to rotate.

[0032] In this embodiment: the operation of the hydraulic cylinders A5 on both sides can drive the sliding plate 4 to move relative to each other. When the sliding plate 4 moves relative to each other, it will drive several arc plates 76 on both sides to move into the inner cavity of the pipeline. Then, the operation of the hydraulic cylinder C722 can drive the rack plate 723 to move. When the rack plate 723 moves, it will drive the movable gear 724 to rotate. When the movable gear 724 rotates, it will drive the transmission gear 77 to rotate through the transmission rod. When the transmission gear 77 rotates, it will drive the rotating gear 73 to rotate. Then, through the setting of the arc groove 731, several sliding shafts 74 can be driven to move outward, so that the arc plate 76 can be driven to move outward through the movable plate 75. At this time, the pipeline can be expanded and fixed, thereby completing the centering of the pipeline.

[0033] Working principle: When in use, the pipeline to be aligned can be placed on the arc-shaped support plate 65 on both sides respectively, and its height can be adjusted after placement. The operation of the hydraulic cylinder B62 will drive the push plate 63 to move upward. When the push plate 63 moves upward, it will drive the arc-shaped support plate 65 to move upward through the moving rod 64. At this time, the pipeline can be driven to move upward to a suitable height, and then it can be clamped and fixed. The operation of the hydraulic cylinders A5 on both sides can drive the sliding plate 4 to move relatively. When the sliding plate 4 moves relatively, it will drive several arc plates 76 on both sides to move to the inner cavity of the pipeline. The rack plate 723 is driven to move through the operation of the hydraulic cylinder C722, and the rack plate 723 drives the movable gear 724 to rotate when it moves. When the movable gear 724 rotates, it drives the transmission gear 77 to rotate through the transmission rod. When the transmission gear 77 rotates, it drives the rotating gear 73 to rotate. Then, the arc groove 731 is set to drive several sliding shafts 74 to move outward, so that the arc plate 76 can be driven to move outward through the movable plate 75. At this time, the pipeline can be expanded and fixed, thereby completing the centering of the pipeline.

[0034] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A welding centering auxiliary device for ship and marine engineering pipelines, comprising a workbench (1) and support legs (2) fixedly mounted at the four corners of the bottom of the workbench (1), characterized in that: A fixing seat (3) is fixedly mounted on the lower ends of the supporting legs (2), and sliding plates (4) are slidably mounted on both sides of the top of the workbench (1), and hydraulic cylinders A (5) are fixedly mounted below the outer sides of the sliding plates (4), and a lifting assembly (6) is mounted on the bottom of the workbench (1), and clamping assemblies (7) are mounted on both sides of the top of the workbench (1).

2. A ship and marine engineering pipeline welding centering auxiliary device according to claim 1, characterized in that: The outer ends of the hydraulic cylinders A (5) are respectively fixedly mounted with L-shaped support plates (51), and the inner sides of the L-shaped support plates (51) are respectively fixedly mounted on the workbench (1).

3. A ship and marine engineering pipeline welding centering auxiliary device according to claim 1, characterized in that: The lifting assembly (6) comprises an n-shaped plate (61) arranged below the bottom of the workbench (1) and a hydraulic cylinder B (62) fixedly mounted in the middle of the top of the inner cavity of the n-shaped plate (61); the bottom of the n-shaped plate (61) is fixedly mounted on the fixed seat (3), and the power end of the hydraulic cylinder B (62) slides through and extends to the outside of the n-shaped plate (61); the power end of the hydraulic cylinder B (62) is fixedly mounted with a push plate (63), and moving rods (64) are fixedly mounted on both sides of the top of the push plate (63); the upper ends of the moving rods (64) slide through and extend to the outside of the workbench (1), and the upper ends of the moving rods (64) are fixedly mounted with arc-shaped supporting plates (65).

4. The device for centering welding of ship and marine engineering pipeline according to claim 1 is characterized in that: The clamping assembly (7) comprises a fixed column (71) fixedly mounted on the inner side of a sliding plate (4) on one side and a circular plate (72) fixedly mounted on the inner end of the fixed column (71); a rotating gear (73) is movably mounted at the middle of the inner side of the circular plate (72); a plurality of sliding shafts (74) are slidably mounted on the rotating gear (73) at equal intervals; a moving plate (75) is fixedly mounted on one end of the sliding shaft (74); a plurality of moving grooves are opened at equal intervals on the edge of the inner side of the circular plate (72); the moving plates (75) are slidably mounted in the inner cavities of adjacent moving grooves; the outer ends of the moving plates (75) extend to the outer sides of the circular plate (72); arc plates (76) are fixedly mounted on the outer ends of the moving plates (75); and a transmission gear (77) is meshed with the front side of the rotating gear (73).

5. A ship and marine engineering pipeline welding centering auxiliary device according to claim 4, characterized in that: The rotating gear (73) is provided with a plurality of arc-shaped grooves (731) at equal intervals, and the output shafts of the sliding shaft (74) are respectively slidably penetrated and installed in the inner cavities of the arc-shaped grooves (731).

6. A ship and marine engineering pipeline welding centering auxiliary device according to claim 4, characterized in that: A bearing plate (721) is fixedly mounted above the front side of the outer side of the circular plate (72), and a hydraulic cylinder C (722) is fixedly mounted at the bottom of the bearing plate (721). A rack plate (723) is fixedly mounted on the power end of the hydraulic cylinder C (722). A movable gear (724) is meshed on the front side of the rack plate (723). A transmission rod is fixedly mounted in the middle of the inner side of the movable gear (724), and the inner end of the transmission rod is movably extended through the outer side of the circular plate (72), and the inner end of the transmission rod is fixedly connected to the transmission gear (77).

Images