CN111550623B - Quick connector for loading and unloading arm - Google Patents
Quick connector for loading and unloading arm Download PDFInfo
- Publication number
- CN111550623B CN111550623B CN202010507662.3A CN202010507662A CN111550623B CN 111550623 B CN111550623 B CN 111550623B CN 202010507662 A CN202010507662 A CN 202010507662A CN 111550623 B CN111550623 B CN 111550623B
- Authority
- CN
- China
- Prior art keywords
- ring
- clamping jaw
- claw
- hinged
- rotary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 210000000078 claw Anatomy 0.000 claims abstract description 36
- 230000006835 compression Effects 0.000 claims abstract description 18
- 238000007906 compression Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/036—Flanged joints the flanges being connected by members tensioned axially characterised by the tensioning members, e.g. specially adapted bolts or C-clamps
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
A quick connector for a loading arm relates to the technical field of low-temperature fluid conveying devices, in particular to a quick connector for an LNG low-temperature loading arm. Two ends of the main pipeline are respectively connected with the flange plates, and the main pipeline is respectively provided with a rotation mechanism and a clamping mechanism; the rotary mechanism comprises a fixed ring, a rotary ring and a hydraulic cylinder; one end of a piston rod of the hydraulic cylinder is hinged with the fixed ring, and one end of a cylinder body of the hydraulic cylinder is hinged with the rotary ring; the clamping mechanism comprises an inner claw and an outer claw, the lower ends of the inner claw and the outer claw are coaxially hinged with an outer arm of the main body pipeline, the inner claw is positioned at the inner end of the outer claw, the inner end of the outer claw is fixedly connected with the outer end of the mandrel, the inner end of the mandrel is hinged with the outer end of the inner claw, a compression spring is sleeved on the outer side of the mandrel, and one end of the compression spring is connected with the inner claw. The outer clamping jaw is connected with the inner clamping jaw through the compression spring, and the force generated by the compression spring always acts on the outer arm of the inner clamping jaw vertically, so that the inner clamping jaw can generate enough pressing force.
Description
Technical Field
The invention relates to the technical field of low-temperature fluid conveying devices, in particular to a quick connector for an LNG low-temperature loading and unloading arm.
Background
The loading and unloading arm of the natural gas transport ship needs to be connected with a ground pipeline by using a connector, and the existing connector is mostly connected quickly by adopting a hydraulic motor or a hydraulic cylinder to drive a claw. The claw of the existing quick connecting device is directly connected with the slewing mechanism through the spring pressing mechanism, and as the spring in the spring pressing mechanism is connected with the claw at a certain angle, only a small part of elastic force generated by the spring pressing mechanism acts on the claw, so that the pressing force is possibly insufficient, and if a large-elastic spring is adopted, a high-power hydraulic cylinder is required to be used for driving, so that the production cost of the equipment is increased, and the overall weight of the equipment is increased.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a quick connector for a loading arm, so as to achieve the purpose of enhancing the clamping jaw pressing force.
The invention provides a quick connector for a loading arm, which is characterized in that: the device comprises a main body pipeline, a rotation mechanism and a clamping mechanism, wherein two ends of the main body pipeline are respectively connected with a flange plate, and the rotation mechanism and the clamping mechanism are respectively arranged on the main body pipeline; the rotary mechanism comprises a fixed ring, a rotary ring and a hydraulic cylinder; one end of a piston rod of the hydraulic cylinder is hinged with the fixed ring, and one end of a cylinder body of the hydraulic cylinder is hinged with the rotary ring; the clamping mechanism comprises an inner claw and an outer claw, the lower ends of the inner claw and the outer claw are coaxially hinged with an outer arm of the main pipeline, the inner claw is positioned at the inner end of the outer claw, the inner end of the outer claw is fixedly connected with the outer end of a mandrel, the inner end of the mandrel is hinged with the outer end of the inner claw, the mandrel is sleeved with a spring seat, the outer side of the mandrel is sleeved with a compression spring, one end of the compression spring is connected with the inner claw, and the other end of the compression spring is connected with the spring seat; the rotary ring is provided with a plurality of fork-shaped joints, the fork-shaped joints and the outer clamping claws are arranged in a staggered mode, the lower end of the connecting rod is connected with the fork-shaped joints through a joint bearing, and the upper end of the connecting rod is connected with the outer clamping claws through the joint bearing.
Annular grooves are respectively arranged on the end faces of the flange plates, and annular sealing rings are arranged in the annular sliding grooves.
The outer side of the flange plate positioned at one end of the clamping mechanism of the main pipeline is provided with a plurality of guide plates which are uniformly distributed in a circumferential shape, and the inner ends of the guide plates are provided with inclined surfaces.
The fixed ring and the rotary ring are rotationally connected in such a way that the lower end of the fixed ring is connected with the sliding ring, the outer ring wall of the sliding ring is provided with an annular groove, the inner ring wall of the rotary ring is provided with an annular groove, the annular groove of the sliding ring corresponds to the annular groove of the rotary ring, the rotary ring is sleeved on the outer side of the sliding ring, the two annular grooves form an annular cavity, and a plurality of balls are arranged in the annular cavity.
The lower end of the outer wall of the sliding ring is provided with a lower limiting ring, the upper end of the inner ring of the rotary ring is provided with an upper limiting ring, the lower limiting ring is positioned at the lower end of the rotary ring, and the upper limiting ring is positioned at the upper end of the sliding ring.
Compared with the prior art, the invention has the following outstanding beneficial effects:
The clamping device of the device comprises an inner clamping jaw and an outer clamping jaw, wherein the outer clamping jaw is connected with the inner clamping jaw through a compression spring, and the force generated by the compression spring is always acted on an outer arm of the inner clamping jaw vertically, so that the inner clamping jaw can generate enough compression force.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a partial enlarged view of a portion a in fig. 1.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description. For convenience of description, the axis of the main pipeline 1 is taken as an inner end, and two sides are taken as outer ends.
As shown in fig. 1 to 3, the invention comprises a main pipeline 1, a slewing mechanism 2 and a clamping mechanism 3.
The two ends of the main body pipeline 1 are fixedly connected with the flange plates 102 respectively, annular grooves are formed in the end faces of the two flange plates 102 respectively, annular sealing rings are installed in the annular sliding grooves, and the main body pipeline 1 is provided with a rotation mechanism 2 and a clamping mechanism 3 respectively.
The outside that is located ring flange 102 of joint mechanism 3 one end of main body pipeline 1 is equipped with a plurality of guide plates 101 that are circumference evenly distributed, and the inner of guide plate 101 is equipped with the inclined plane, and guide plate 101 can carry out centering location to the manifold flange of transport ship.
The slewing mechanism 2 comprises a fixed ring 201, a slewing ring 202 and a hydraulic cylinder 207, wherein the fixed ring 201 is rotationally connected with the slewing ring 202 in the following way: the lower end of the fixed ring 201 is fixedly connected with the sliding ring 203 through a bolt, a ring-shaped groove is arranged on the outer ring wall of the sliding ring 203, a ring-shaped groove is also arranged on the inner ring wall of the rotary ring 202, the cross sections of the ring-shaped grooves of the sliding ring 203 and the rotary ring 202 are semicircular, the ring-shaped groove of the sliding ring 203 is correspondingly arranged with the ring-shaped groove of the rotary ring 202, the rotary ring 202 is sleeved on the outer side of the sliding ring 203, the two ring-shaped grooves form a ring-shaped cavity, a plurality of balls 204 are arranged in the ring-shaped cavity, and when the rotary ring 202 rotates around the sliding ring 203, the balls 204 can reduce friction force between the rotary ring 202 and the sliding ring 203, so that the rotary ring 202 can rotate around the sliding ring 203 more easily.
The fixing ring 201 and the rotating ring 202 can be connected through a bearing fit.
The lower end of the outer wall of the sliding ring 203 is provided with a lower limiting ring 206, the upper end of the inner ring of the rotary ring 202 is provided with an upper limiting ring 205, the lower limiting ring 206 is positioned at the lower end of the rotary ring 202, and the upper limiting ring 205 is positioned at the upper end of the sliding ring 203, so that the rotary ring 202 is positioned in the axial direction.
The fixed ring 201 and the rotary ring 202 are respectively provided with a supporting lug, one end of a piston rod of the hydraulic cylinder 207 is hinged with the supporting lug on the fixed ring 201, and one end of a cylinder body of the hydraulic cylinder 207 is hinged with the supporting lug on the rotary ring 202.
The clamping mechanism 3 comprises an inner clamping jaw 302 and an outer clamping jaw 301, a plurality of lugs 103 which are uniformly arranged in a circumferential shape are arranged on the main pipeline 1, the lower ends of the inner clamping jaw 302 and the outer clamping jaw 301 are coaxially hinged with the lugs 103, the inner clamping jaw 302 is positioned at the inner end of the outer clamping jaw 301, the inner end of the outer clamping jaw 301 is fixedly connected with the outer end of a mandrel 303, the inner end of the mandrel 303 is hinged with the outer end of the inner clamping jaw 302, a spring seat 304 is sleeved on the mandrel 303, a compression spring 305 is sleeved on the outer side of the mandrel 303, one end of the compression spring 305 is connected with the inner clamping jaw 302, and the other end of the compression spring 305 is connected with the spring seat 304.
The rotary ring 202 is provided with a plurality of fork-shaped joints 208 which are uniformly distributed in a circumferential shape, the number of the fork-shaped joints 208 is the same as that of the outer clamping claws 301, the fork-shaped joints 208 and the outer clamping claws 301 are arranged in a staggered manner, the lower end of the connecting rod 5 is connected with the fork-shaped joints 208 through the joint bearing 4, and the upper end is connected with the outer clamping claws 301 through the joint bearing 4.
The operation flow is as follows: when the hydraulic cylinder 207 is started, the hydraulic cylinder 207 is extended, the hydraulic cylinder 207 drives the rotary ring 202 to rotate around the fixed ring 201, the rotary ring 202 drives the outer claw 301 to rotate inwards around the hinge joint with the lug plate 103 of the main pipeline 1 through the joint bearing 4 and the connecting rod 5, the outer claw 301 drives the inner claw 302 to rotate inwards around the hinge joint with the lug plate 103 of the main pipeline 1 through the mandrel 303, when the inner claw 302 is propped against the manifold flange of the transport ship, the outer claw 301 continues to rotate, the compression spring 305 is compressed, and the compression force generated by the compression spring 305 acts on the inner claw 302, so that the inner claw 302 is compressed on the manifold flange of the transport ship.
It is noted that while the present invention has been described in detail with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various modifications can be made therein without departing from the spirit and scope thereof.
Claims (3)
1. The utility model provides a quick-operation joint for loading and unloading arm which characterized in that: the device comprises a main pipeline (1), a slewing mechanism (2) and a clamping mechanism (3), wherein two ends of the main pipeline (1) are respectively connected with a flange plate (102), annular grooves are respectively formed in the end faces of the flange plates (102), annular sealing rings are arranged in annular sliding grooves, and the slewing mechanism (2) and the clamping mechanism (3) are respectively arranged on the main pipeline (1); the outer side of a flange plate (102) positioned at one end of the clamping mechanism (3) of the main pipeline (1) is provided with a plurality of guide plates (101) which are uniformly distributed in a circumferential shape, the inner end of each guide plate (101) is provided with an inclined surface, and the slewing mechanism (2) comprises a fixed ring (201), a slewing ring (202) and a hydraulic cylinder (207); one end of a piston rod of the hydraulic cylinder (207) is hinged with the fixed ring (201), and one end of a cylinder body of the hydraulic cylinder (207) is hinged with the rotary ring (202); the clamping mechanism (3) comprises an inner clamping jaw (302) and an outer clamping jaw (301), the lower ends of the inner clamping jaw (302) and the outer clamping jaw (301) are coaxially hinged with an outer arm of the main pipeline (1), the inner clamping jaw (302) is positioned at the inner end of the outer clamping jaw (301), the inner end of the outer clamping jaw (301) is fixedly connected with the outer end of a mandrel (303), the inner end of the mandrel (303) is hinged with the outer end of the inner clamping jaw (302), a spring seat (304) is sleeved on the outer side of the mandrel (303), one end of the compression spring (305) is connected with the inner clamping jaw (302), and the other end of the compression spring is connected with the spring seat (304); the rotary ring (202) is provided with a plurality of fork-shaped joints (208), the fork-shaped joints (208) and the outer clamping claws (301) are arranged in a staggered mode, the lower end of the connecting rod (5) is connected with the fork-shaped joints (208) through the knuckle bearing (4), and the upper end of the connecting rod is connected with the outer clamping claws (301) through the knuckle bearing (4).
2. The quick connector for a loading arm according to claim 1, wherein: the fixed ring (201) is rotationally connected with the rotary ring (202) in a rotating connection mode, the lower end of the fixed ring (201) is connected with the sliding ring (203), an annular groove is formed in the outer ring wall of the sliding ring (203), an annular groove is formed in the inner ring wall of the rotary ring (202), the annular groove of the sliding ring (203) corresponds to the annular groove of the rotary ring (202), the rotary ring (202) is sleeved on the outer side of the sliding ring (203), an annular cavity is formed by the two annular grooves, and a plurality of balls (204) are arranged in the annular cavity.
3. The quick connector for a loading arm according to claim 2, wherein: the lower end of the outer wall of the sliding ring (203) is provided with a lower limiting ring (206), the upper end of the inner ring of the rotary ring (202) is provided with an upper limiting ring (205), the lower limiting ring (206) is positioned at the lower end of the rotary ring (202), and the upper limiting ring (205) is positioned at the upper end of the sliding ring (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010507662.3A CN111550623B (en) | 2020-06-05 | 2020-06-05 | Quick connector for loading and unloading arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010507662.3A CN111550623B (en) | 2020-06-05 | 2020-06-05 | Quick connector for loading and unloading arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111550623A CN111550623A (en) | 2020-08-18 |
| CN111550623B true CN111550623B (en) | 2024-07-26 |
Family
ID=72002266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010507662.3A Active CN111550623B (en) | 2020-06-05 | 2020-06-05 | Quick connector for loading and unloading arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111550623B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112082019A (en) * | 2020-09-02 | 2020-12-15 | 江苏长隆石化装备有限公司 | Efficient quick connection device and method |
| CN113280197B (en) * | 2021-06-23 | 2022-11-08 | 济南乾瑞锻造股份有限公司 | Flange |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212455861U (en) * | 2020-06-05 | 2021-02-02 | 山东冠卓重工科技有限公司 | Quick joint for loading and unloading arm |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2903637Y (en) * | 2006-01-18 | 2007-05-23 | 连云港远洋流体装卸设备有限公司 | Fast connecting device |
| CN202360966U (en) * | 2011-10-14 | 2012-08-01 | 上海冠卓企业发展有限公司 | Intelligent quick connecting device for loading arm |
| US20130140807A1 (en) * | 2011-12-06 | 2013-06-06 | Gerald Milroy Van Dusen | Clamp with spring loaded bolt to repair broken exhaust manifold flange bolts |
| CN111059379B (en) * | 2019-12-26 | 2024-02-02 | 大连华锐重工集团股份有限公司 | Hydraulic synchronous quick connector |
-
2020
- 2020-06-05 CN CN202010507662.3A patent/CN111550623B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212455861U (en) * | 2020-06-05 | 2021-02-02 | 山东冠卓重工科技有限公司 | Quick joint for loading and unloading arm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111550623A (en) | 2020-08-18 |
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