Novel self-supporting connecting rod type marine liquid loading and unloading arm

Abstract

The invention relates to the technical field of marine liquid loading and unloading equipment, in particular to a novel self-supporting connecting rod type marine liquid loading and unloading arm which comprises a stand column pipeline assembly, and a trunnion box is installed at the top end of the stand column pipeline assembly through a first high-strength rotating connector. According to the novel self-supporting connecting rod type marine liquid loading and unloading arm, a self-supporting and multi-connecting-rod structure is adopted, the whole loading and unloading arm is simple in structure, and the requirement for a smaller installation interval can be met; the process pipeline is directly used as a supporting piece, and the functions of a slewing bearing of a traditional steel structure and a rotary joint of the process pipeline are considered; the high-strength rotating joint can meet the weight of an independent supporting loading and unloading arm in structure and can also meet the rotating and sealing requirements of the rotating joint in function.

Description

Technical Field

[0001] The invention relates to the technical field of ship liquid loading and unloading equipment, in particular to a novel self-supporting connecting rod type ship liquid loading and unloading arm. Background Art

[0002] The process pipelines and supporting structure components of the traditional loading and unloading arm are independent and separated. The process pipelines are used for the circulation of liquid media, and the supporting structure is used to support the weight of all pipelines and drive the pipelines to rotate up, down, left and right. However, the independent steel structure support will increase the size and weight of the loading and unloading arm, limit the installation of the loading and unloading arm in a limited space dock, and the steel structure support components increase the material and labor manufacturing and welding costs; the independent process pipelines and steel structure supports need to be installed with rotating joints and slewing bearings respectively in places where there is rotation, which increases the procurement cost and installation difficulty, and also complicates maintenance.

[0003] Moreover, traditional loading and unloading arms all use hydraulic cylinders to drive steel cables, and use steel cables to pull the driving rope wheel to rotate. It is necessary to press the adjusting screws at both ends of the steel cable and press the fixed node in the middle. This driving method has high requirements on the strength of the steel cable and the pull-out resistance after pressing the adjusting screw, and has high safety requirements. It is necessary to do a pull-out test. Under the ultimate breaking tension of the wire rope, the steel cable can only be broken, and the part pressed into the adjusting screw cannot be pulled out of the adjusting screw. The adjusting screw must be pressed and compacted. The steel cable will be stretched during use, and the steel cable will be separated from the rope wheel, causing the equipment to become unstable and causing major accidents. Therefore, the rope wheel structure needs to tighten the adjusting screw of the steel cable regularly to keep the steel wire rope in a tensioned state. The flexible characteristics of the steel wire rope mean that the outer arm of the loading and unloading arm and the counterweight system will not be completely parallel, and regular inspections are required. If it is found that they are not parallel, the balance of the loading and unloading arm may be destroyed, and the main balance steel wire rope needs to be adjusted again. During the inspection, it is necessary to climb up, which is dangerous and troublesome. During daily equipment use, the wire rope needs to be lubricated regularly. In some areas where it is difficult to climb, it may not be fully lubricated, resulting in wear of the wire rope during use. It is difficult to fully maintain the wire rope, shortening its service life and causing it to be replaced early, resulting in increased use costs. Summary of the invention

[0004] The technical problem to be solved by the present invention is: the traditional loading and unloading arm adopts an independent steel structure as the support of the process pipeline, the joints of the structural components are connected by a slewing bearing to realize rotational movement, the process pipeline realizes a swivel joint through a swivel joint, and the swivel bearing and the process pipeline swivel joint must be manufactured concentrically to realize synchronous rotation, the structure is complex, and the main load of the loading and unloading arm is on the structural components, which increases the size and weight of the loading and unloading arm; the traditional steel structure loading and unloading arm has a complex structure, a large welding workload, high installation requirements, and high production costs; the traditional loading and unloading arm adopts a steel cable to drive the inner and outer arms and horizontal rotation, the driving mechanism is complex, the steel cable is stretched during use, and regular maintenance is required, the maintenance is difficult and the cost is high.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a novel self-supporting connecting rod type marine liquid loading and unloading arm, including a column pipeline assembly, the top of the column pipeline assembly is installed with a trunnion box through a first high-strength rotating joint, one side of the trunnion box is installed with an inner arm pipeline assembly through a second high-strength rotating joint, one end of the inner arm pipeline assembly is movably installed with an outer arm pipeline assembly through a single flange rotating joint, the other end of the inner wall pipeline assembly is bolted with a main balancing system, the outer wall balancing system is installed on the outer side wall of the outer arm pipeline assembly connecting end and the outer side surface of the inner wall pipeline assembly, and the outer end of the outer arm pipeline assembly is installed with a double flange rotating joint.

[0006] A lateral rotating frame is welded and fixed on one side of the lower surface of the trunnion box, an outer wall hydraulic cylinder is movably mounted on the outer side surface of the lateral rotating frame, and the extended end of the outer wall hydraulic cylinder is movably assembled with the outer side surface of the column pipeline assembly.

[0007] A lateral flip frame is welded and fixed to the outer side surface of the ear axle box on the same side as the connecting end of the inner arm pipeline assembly, and a control bracket for installing an inner arm hydraulic cylinder on the outside is welded and fixed to the outer side wall of the inner arm pipeline assembly, and the extended end of the inner arm hydraulic cylinder is movably assembled inside the lateral flip frame.

[0008] The main balancing system comprises a first mounting seat welded and fixed to the end of the inner wall pipeline assembly, a first central assembly shaft cylinder fixed to the first mounting seat, a first side assembly screw and a first counterweight plate.

[0009] The outer wall balancing system includes a control connecting rod fixed on the outer side wall of the outer arm pipeline assembly connection end, a counterweight support beam installed on the outer side surface of the inner wall pipeline assembly, an outer arm pull rod, a horizontal hydraulic cylinder, a second mounting seat fixedly installed on the side wall of the counterweight support beam through a lateral counterweight frame, a second central assembly shaft cylinder fixed on the second mounting seat, a second side assembly screw and a second counterweight plate.

[0010] An inner wall outer reinforcement bracket is fixedly mounted on the outer side surface of the inner arm pipeline assembly.

[0011] The outer wall outer reinforcement bracket is fixedly mounted on the outer side surface of the outer arm pipeline assembly and the control connecting rod.

[0012] A locking mechanism is mounted on the outer side surface of the column pipeline assembly through an outer side mounting frame.

[0013] An internal connecting elbow for connecting the first high-strength rotating joint and the second high-strength rotating joint is fixed with bolts inside the trunnion box.

[0014] The control connecting rod and the counterweight supporting beam are movably assembled through an outer arm pull rod, and the horizontal hydraulic cylinder is connected between the inner arm pipeline assembly and the counterweight supporting beam.

[0015] The beneficial effects of the present invention are:

[0016] (1) A novel self-supporting connecting rod type marine liquid loading and unloading arm of the present invention uses the process pipeline directly as a supporting member, and sets a bottom plate and reinforcing ribs on the column pipeline assembly belt as a column support, while the inner arm pipeline assembly is used as an inner arm support, and the outer arm pipeline assembly is used as an outer arm support. The use of steel structure as a support is eliminated, and a truss support is directly welded on the pipeline for reinforcement, thereby reducing the weight of the loading and unloading arm, making the structure of the loading and unloading arm simpler, and the loading and unloading arm of the same specification occupies a smaller area;

[0017] (2) The process pipeline is directly used as a support. The new high-strength rotary joint takes into account the functions of the slewing bearing of the traditional steel structure and the rotary joint of the process pipeline. The new high-strength rotary joint can meet the weight of the independent support loading and unloading arm in terms of structure, and can also meet the rotation and sealing requirements of the rotary joint in terms of function. The sealing ring of the new high-strength rotary joint is arranged on the inner side of the trunnion box, which can be easily replaced.

[0018] (3) The new loading and unloading arm adopts a multi-link structure, replacing the steel cable and rope pulley of the traditional loading and unloading arm, which can achieve lifelong maintenance-free. The hydraulic cylinder directly drives the inner and outer arms and horizontal rotation. The structure is simple and maintenance is simpler and more convenient than the traditional loading and unloading arm drive wheel structure, which reduces the use cost of the loading and unloading arm;

[0019] (4) The multi-link structure of the new loading and unloading arm can be disassembled for transportation, which reduces the transportation difficulty and cost compared with the traditional steel cable loading and unloading arm that is shipped as a whole;

[0020] (5) The double counterweight balancing system makes it easier to adjust the balance of the inner and outer arms of the loading and unloading arm than the traditional single counterweight balancing system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the structure of the present invention in an unfolded state.

[0023] Figure 2 It is a schematic structural diagram of one side of the present invention in the storage state.

[0024] Figure 3 It is a schematic structural diagram of the other side of the present invention in the storage state.

[0025] Figure 4 It is a structural schematic diagram of the trunnion box of the present invention.

[0026] Figure 5 It is a schematic diagram of the control state of the outer wall hydraulic cylinder in the present invention.

[0027] Figure 6 It is a schematic diagram of the control state of the inner arm hydraulic cylinder in the present invention.

[0028] Figure 7 It is a schematic diagram of the control state of the horizontal hydraulic cylinder in the present invention. DETAILED DESCRIPTION

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 A novel self-supporting connecting rod type marine liquid loading and unloading arm shown in the figure comprises a column pipeline assembly 1, a trunnion box 2 is installed on the top of the column pipeline assembly 1 through a first high-strength rotating joint 5, an inner arm pipeline assembly 3 is installed on one side of the trunnion box 2 through a second high-strength rotating joint 6, an outer arm pipeline assembly 4 is movably installed on one end of the inner arm pipeline assembly 3 through a single flange rotating joint 7, a main balancing system 12 is bolted to the other end of the inner wall pipeline assembly 3, an outer wall balancing system 13 is installed on the outer side wall of the connecting end of the outer arm pipeline assembly 4 and the outer side surface of the inner wall pipeline assembly 3, and a double flange rotating joint 8 is installed on the outer side of the outer arm pipeline assembly 4.

[0032] A lateral rotating frame is welded and fixed to one side of the lower surface of the trunnion box 2, and an outer wall hydraulic cylinder 10 is movably installed on the outer side surface of the lateral rotating frame. The extended end of the outer wall hydraulic cylinder 10 is movably assembled with the outer side surface of the column pipeline assembly 1.

[0033] A lateral flip frame is welded and fixed to the outer side surface of the ear axle box 2 on the same side as the connecting end of the inner arm pipeline assembly 3, and a control bracket for installing the inner arm hydraulic cylinder 9 on the outside is welded and fixed to the outer side wall of the inner arm pipeline assembly 3, and the protruding end of the inner arm hydraulic cylinder 9 is movably assembled inside the lateral flip frame.

[0034] The main balancing system 12 includes a first mounting seat 121 welded and fixed to the end of the inner wall pipeline assembly 3 , a first central assembly shaft cylinder 122 fixed to the first mounting seat 121 , a first side assembly screw 123 and a first counterweight plate 124 .

[0035] The outer wall balancing system 13 includes a control link 131 fixed on the outer side wall of the connecting end of the outer arm pipeline assembly 4, a counterweight support beam 132 installed on the outer side of the inner wall pipeline assembly 3, an outer arm pull rod 133, a horizontal hydraulic cylinder 134, a second mounting seat 135 fixedly installed on the side wall of the counterweight support beam 132 through a lateral counterweight frame, a second central assembly shaft 136 fixed on the second mounting seat 135, a second side assembly screw 137 and a second counterweight plate 138.

[0036] An inner wall outer reinforcement bracket 15 is fixedly mounted on the outer side surface of the inner arm pipeline assembly 3 .

[0037] An outer wall outer reinforcement bracket 16 is fixedly mounted on the outer side surfaces of the outer arm pipeline assembly 4 and the control link 131 .

[0038] A locking mechanism 14 is mounted on the outer side of the column pipeline assembly 1 through an outer mounting frame.

[0039] An internal connecting elbow 17 for connecting the first high-strength rotating joint 5 and the second high-strength rotating joint 6 is fixed by bolts inside the trunnion box 2 .

[0040] The control link 131 and the counterweight support beam 132 are movably assembled through the outer arm pull rod 133, and the horizontal hydraulic cylinder 10 is connected between the inner arm pipeline assembly 3 and the counterweight support beam 132.

[0041] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A novel self-supporting connecting rod type marine liquid loading and unloading arm, comprising a column pipeline assembly (1), Its characteristics are: The top of the column pipeline assembly (1) is installed with a trunnion box (2) through a first high-strength rotating joint (5), the side of the trunnion box (2) is installed with an inner arm pipeline assembly (3) through a second high-strength rotating joint (6), one end of the inner arm pipeline assembly (3) is movably installed with an outer arm pipeline assembly (4) through a single flange rotating joint (7), the other end of the inner wall pipeline assembly (3) is bolted with a main balancing system (12), the outer wall of the outer arm pipeline assembly (4) and the outer side of the inner wall pipeline assembly (3) are installed with an outer wall balancing system (13), and the outer end of the outer arm pipeline assembly (4) is installed with a double flange rotating joint (8).

2. A novel self-supporting connecting rod type marine liquid loading and unloading arm according to claim 1, Its characteristics are: A lateral rotating frame is welded and fixed to one side of the lower surface of the trunnion box (2), an outer wall hydraulic cylinder (10) is movably mounted on the outer side surface of the lateral rotating frame, and the extended end of the outer wall hydraulic cylinder (10) is movably assembled with the outer side surface of the column pipeline assembly.

3. A novel self-supporting connecting rod type marine liquid loading and unloading arm according to claim 1, Its characteristics are: A lateral flipping frame is welded and fixed to the outer side surface of the ear axle box (2) on the same side as the connecting end of the inner arm pipeline assembly (3), and a control bracket for mounting an inner arm hydraulic cylinder (9) on the outer side is welded and fixed to the outer side wall of the inner arm pipeline assembly (3), and the extended end of the inner arm hydraulic cylinder (9) is movably assembled inside the lateral flipping frame.

4. A novel self-supporting connecting rod type marine liquid loading and unloading arm according to claim 1, Its characteristics are: The main balancing system (12) comprises a first mounting seat (121) welded and fixed to the end of the inner wall pipeline assembly (3), a first central assembly shaft cylinder (122) fixed to the first mounting seat (121), a first side assembly screw (123) and a first counterweight plate (124).

5. A novel self-supporting connecting rod type marine liquid loading and unloading arm according to claim 1, Its characteristics are: The outer wall balancing system (13) comprises a control connecting rod (131) fixed on the outer side wall of the connecting end of the outer arm pipeline assembly (4), a counterweight support beam (132) installed on the outer side surface of the inner wall pipeline assembly (3), an outer arm pull rod (133), a horizontal hydraulic cylinder (134), a second mounting seat (135) fixedly mounted on the side wall of the counterweight support beam (132) via a lateral counterweight frame, a second central assembly shaft cylinder (136) fixed on the second mounting seat (135), a second side assembly screw (137) and a second counterweight plate (138).

6. A novel self-supporting connecting rod type marine liquid loading and unloading arm according to claim 1, Its characteristics are: An inner wall outer reinforcement bracket (15) is fixedly mounted on the outer side surface of the inner arm pipeline assembly (3).

7. A novel self-supporting connecting rod type marine liquid loading and unloading arm according to claim 5, Its characteristics are: An outer wall outer reinforcement bracket (16) is fixedly mounted on the outer side surfaces of the outer arm pipeline assembly (4) and the control connecting rod (131).

8. A novel self-supporting connecting rod type marine liquid loading and unloading arm according to claim 1, Its characteristics are: A locking mechanism (14) is mounted on the outer side surface of the column pipeline assembly (1) via an outer side mounting frame.

9. A novel self-supporting connecting rod type marine liquid loading and unloading arm according to claim 1, Its characteristics are: An internal connecting elbow (17) for connecting the first high-strength rotating joint (5) and the second high-strength rotating joint (6) is fixed by bolts inside the trunnion box (2).

10. A novel self-supporting connecting rod type marine liquid loading and unloading arm according to claim 5, Its characteristics are: The control link (131) and the counterweight support beam (132) are movably assembled via an outer arm pull rod (133), and the horizontal hydraulic cylinder (134) is connected between the inner arm pipeline assembly (3) and the counterweight support beam (132).

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