A port oil delivery arm integrated slewing support device

Abstract

This invention provides an integrated slewing support device for port oil transport arms, solving the problems of difficult assembly, inconvenient maintenance, and insufficient operational reliability associated with the traditional separate structure of port oil transport arms. It also includes: a cover plate fixed to the bottom surface of the turntable; rollers positioned between the inner ring column and the outer ring sleeve to bear the overturning moment generated by the turntable; ball bearings positioned between the inner ring column and the outer ring sleeve to constrain the axial displacement of the inner ring column and the outer ring sleeve; a first connecting piece for connecting the cover plate and the flange; and a second connecting piece for connecting the cover plate and the outer ring sleeve. By fixing the flange and the outer ring sleeve to the turntable using the first and second connecting pieces, the traditional separate mechanism is eliminated, making it easier to ensure coaxiality, simplifying the structure, reducing assembly difficulty, and minimizing component wear; the optimized layout avoids space constraints and facilitates lubrication and maintenance; the rollers bear the overturning moment, and the ball bearings constrain axial displacement, replacing the single-row steel ball support, improving the overall operational reliability and extending the service life of the machine.

Description

Technical Field

[0001] This invention relates to the field of port oil transportation equipment technology, specifically to an integrated slewing support device for port oil transportation arms. Background Technology

[0002] Port oil transfer arms are core equipment for loading and unloading operations at large liquid cargo terminals. They are used to connect ships to onshore oil pipelines and can swing with the ship to ensure stable transport of liquid cargo. Compared with rubber hose connections, they have advantages such as large flow rate, high safety, high reliability, and high efficiency, and have been widely used in various types of liquid cargo terminals.

[0003] The port oil transfer arm mainly consists of a column 01, a turntable 02, a three-dimensional joint 03, an inner support arm 04, and an outer extension arm 05 (e.g., Figure 1 As shown), its outer three-dimensional joint 03 can be connected to the ship's oil pipeline flange and swing with the ship. The central rotary joint is its key component. One oil delivery arm is equipped with multiple central rotary joints, which are used at the three-dimensional joint 03 between the column 01 and the turntable 02, the turntable 02 and the inner support arm 04, the inner support arm 04 and the outer extension arm 05, and between the lower end of the oil pipeline of the outer extension arm 05 and the interface flange.

[0004] In traditional port oil transport arms, the turntable slewing support device and the central rotary joint of the oil pipeline inside the turntable 02 are two separate mechanisms (such as...). Figure 2 As shown): The central rotary joint of the oil pipeline consists of an inner oil pipeline 06, double-ring steel balls 07, a central rotary joint outer sleeve 08, a No. 1 sealing ring 09, a bend 010, a flange 011, etc., to ensure normal oil delivery when the turntable 02 rotates; the turntable slewing support consists of an outer ring sleeve 012, a single-ring steel ball 013, and an inner ring column 014, used to support the weight of the turntable 02, inner support arm 04 and other components, and to bear dynamic loads such as vibration and wind load. The two sets of mechanisms need to be precisely coaxially assembled.

[0005] This separate design has several drawbacks: First, the coaxiality requirement between the two components is extremely high, making construction and assembly difficult, and even minor deviations can lead to accelerated wear of the parts; second, the central rotary joint is located inside the turntable, in a confined space, making lubrication and maintenance inconvenient; third, the single-row steel ball support is prone to skewing, leading to accelerated wear and severely affecting the operational reliability and service life of the port oil boom. To address these shortcomings of existing technology, there is an urgent need for an integrated, easily assembled, and reliable rotary support device to solve these problems. Summary of the Invention

[0006] To overcome the shortcomings of the prior art, the present invention provides an integrated slewing support device for port oil transport arms, which solves the problems of difficult assembly, inconvenient maintenance, and insufficient operational reliability of the traditional separate structure of port oil transport arms.

[0007] The technical solution adopted in this invention is as follows: An integrated slewing support device for a port oil transport arm includes an inner ring column, a turntable, and a bend. Flanges are provided at both ends of the bend. The inner ring column is mounted on the upper end of a column, and a main oil transport channel is provided within the column. The inner ring column is equipped with an outer ring sleeve. The device also includes: The cover plate is fixed to the bottom surface of the turntable; Rollers, positioned between the inner ring column and the outer ring sleeve, are used to bear the overturning moment brought about by the turntable; Ball bearings, located between the inner ring post and the outer ring sleeve, are used to constrain the axial displacement of the inner ring post and the outer ring sleeve. Connector No. 1 is used to connect the cover plate and the flange; The second connector is used to connect the cover plate and the outer ring sleeve.

[0008] A first sealing ring is provided between the flange and the cover plate of the inner ring column and the bend. A sealing ring is provided between the groove of the inner ring column and the outer ring sleeve. A second sealing ring is provided between the inner ring column and the outer ring sleeve, between the inner ring column and the cover plate, and between the outer ring sleeve and the cover plate.

[0009] The rollers and balls are arranged around the annular groove between the inner ring and the outer ring.

[0010] The roller is positioned at the top of the inner ring and the outer ring, and the bottom surface of the cover plate is in close contact with the top surface of the roller.

[0011] The outer ring sleeve is provided with a first mounting groove for cooperating with rollers and a second mounting groove for cooperating with balls. The second mounting groove has an oil injection hole and a disassembly hole on its side. The inner wall of the outer ring sleeve is evenly distributed with oil passage grooves, which are connected to the first mounting groove and the second mounting groove respectively.

[0012] The inner ring column has a channel at its center that matches the main oil delivery channel inside the column, and the inner ring column has several light-reducing holes evenly distributed around its circumference.

[0013] Both the first and second connectors are bolts. The cover plate is locked and fixed to the outer ring through the second connector, and the bent pipe is locked and fixed to the cover plate through the first connector.

[0014] The top of the outer ring sleeve is provided with a positioning boss that mates with the turntable.

[0015] The beneficial effects of this invention are: By fixing the flange and outer ring sleeve to the turntable using connectors No. 1 and No. 2, the traditional separate mechanism is eliminated, making it easier to ensure coaxiality. This simplifies the structure, reduces assembly difficulty, minimizes component wear, and improves assembly efficiency. At the same time, the optimized structural layout avoids the space limitations of the central rotary joint, facilitating lubrication of rollers and balls and maintenance of various components, reducing maintenance costs and extending component lifespan. The rollers bear the turntable's tilting moment, while the balls constrain the axial displacement of the inner ring column and outer ring sleeve, replacing the traditional single-row steel ball support. This improves skew wear and ensures long-term stable operation of the entire machine. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the port's oil loading arm.

[0017] Figure 2 This is a schematic diagram showing that the rotary support device of the turntable and the central rotary joint of the oil pipeline are separate structures.

[0018] Figure 3 This is a schematic diagram of the present invention.

[0019] Figure 4 This is the present invention. Figure 3 Enlarged diagram of point A in the middle.

[0020] Figure 5 This is a cross-sectional schematic diagram of the outer ring sleeve of the present invention.

[0021] Figure 6 This is a front view of the inner ring post of the present invention.

[0022] Figure 7 This is a top view of the inner ring column of the present invention.

[0023] Column 01, Turntable 02, Three-dimensional joint 03, Inner support arm 04, Outer extension arm 05, Oil pipe 06, Double-ring steel ball 07, Central rotary joint outer sleeve 08, No. 1 sealing ring 09, Bend 010, Flange 011, Outer ring sleeve 012, Single-ring steel ball 013, Inner ring column 014, Cover plate 1, Roller 2, Ball 3, No. 1 connector 4, No. 2 connector 5, Sealing ring 6, No. 2 sealing ring 7, No. 1 mounting groove 8, No. 2 mounting groove 9, Oil injection hole 10, Disassembly hole 11, Oil passage groove 12, Lightening hole 13, Positioning boss 14. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments: In the embodiments, such as Figure 3 , Figure 4As shown, an integrated slewing support device for a port oil transport arm includes an inner ring column 014, a turntable 02, and a bend 010. Flanges 011 are provided at both ends of the bend 010. The inner ring column 014 is mounted on the upper end of the column 01 and is equipped with an outer ring sleeve 012. The device is characterized by further comprising: Cover plate 1 is fixed to the bottom surface of turntable 02; Roller 2 is positioned between the inner ring column 014 and the outer ring sleeve 012 to bear the overturning moment brought by the turntable 02. The ball bearing 3 is disposed between the inner ring post 014 and the outer ring sleeve 012 to constrain the axial displacement of the inner ring post 014 and the outer ring sleeve 012. Connector 4 is used to connect cover plate 1 and flange 011; Connector 5 is used to connect cover plate 1 and outer ring sleeve 012.

[0025] The flange and outer ring sleeve 012 are fixed to the turntable 02 by connecting part 4 and connecting part 5, eliminating the traditional separate mechanism and making it easier to ensure coaxiality. This simplifies the structure, reduces assembly difficulty, reduces component wear, and improves assembly efficiency. At the same time, the optimized structural layout avoids the space limitations of the central rotary joint, facilitates the lubrication of rollers 2 and balls 3, and the maintenance of various components, reducing maintenance costs and extending the service life of components. By having rollers 2 bear the tilting moment of the turntable 02 and balls 3 constrain the axial displacement of the inner ring column 014 and outer ring sleeve 012, the traditional single-row steel ball support can be replaced, which can improve skew wear and ensure the long-term stable operation of the whole machine.

[0026] In the embodiments, such as Figure 3 , Figure 4 As shown, a first sealing ring 09 is provided between the inner ring column 014, the flange 011 of the bend 010, and the cover plate 1. A sealing ring 6 is provided between the outer ring sleeve 012 and the groove of the inner ring column 014. Second sealing rings 7 are provided between the inner ring column 014 and the outer ring sleeve 012, between the inner ring column 014 and the cover plate 1, and between the outer ring sleeve 012 and the cover plate 1. The first sealing ring 09 can prevent oil leakage in the main channel. The sealing ring 6 can prevent water vapor from condensing in the groove between the outer ring sleeve 012 and the inner ring column 014 at low temperatures. The second sealing ring 7 can prevent lubricating oil from overflowing between the inner ring column 014 and the outer ring sleeve 012, between the inner ring column 014 and the cover plate 1, and between the outer ring sleeve 012 and the cover plate 1, thus protecting internal components, extending the service life of the device, and improving operational sealing and reliability.

[0027] In this embodiment, both the rollers 2 and the balls 3 are arranged in a complete circle along the annular groove gap between the inner ring column and the outer ring sleeve. This arrangement of the rollers 2 and balls 3 along the annular groove ensures even force distribution, avoids excessive localized stress leading to component wear, further enhances the tilting moment bearing capacity of the rollers 2 and the axial displacement restraint effect of the balls 3, ensures smooth and stable rotation of the turntable 02, and strengthens the operational stability of the device.

[0028] In the embodiments, such as Figure 3 , Figure 4 As shown, the roller 2 is positioned at the top of the inner ring column 014 and the outer ring sleeve 012, and the bottom surface of the cover plate 1 is in close contact with the top surface of the roller 2. This structure ensures the precise installation position of the roller 2 and provides axial positioning for the roller 2, preventing axial movement during operation and ensuring stable load-bearing function. It also simplifies the positioning structure and reduces assembly complexity.

[0029] In the embodiments, such as Figure 5 As shown, the outer ring sleeve 012 is provided with a first mounting groove 8 for cooperating with the roller 2 and a second mounting groove 9 for cooperating with the ball 3. The second mounting groove 9 has an oil injection hole 10 and a disassembly hole 11 on its side. The inner wall of the outer ring sleeve 012 is circumferentially distributed with oil passage grooves 12, which communicate with the first mounting groove 8 and the second mounting groove 9 respectively. The first mounting groove 8 and the second mounting groove 9 enable precise positioning and assembly of the roller 2 and the ball 3, preventing misalignment during operation. The oil injection hole 10 facilitates the addition of lubricating oil. After the lubricating oil enters the second mounting groove 9 through the oil nozzle from the oil injection hole 10, it can smoothly flow into the first mounting groove 8 along the oil passage groove 12, achieving lubrication of both mounting grooves in one operation without separate oiling. This simplifies operation and ensures uniform lubrication of the roller 2 and the ball 3, reducing component wear. The disassembly hole 11 is a threaded hole equipped with a matching plug, facilitating the disassembly and maintenance of the ball 3.

[0030] In the embodiments, such as Figure 6 , Figure 7 As shown, the inner ring column 014 has a channel at its center that matches the main oil delivery channel inside the column 01, and the inner ring column 014 has a plurality of light-reducing holes 13 evenly spaced around its circumference. The light-reducing holes 13 evenly spaced around the circumference achieve a lightweight design of the device and reduce the overall weight without affecting the load-bearing strength of the inner ring column 014.

[0031] In the embodiments, such as Figure 3 , Figure 4As shown, both connector 4 and connector 5 are bolts. The cover plate 1 is locked and fixed to the outer ring sleeve 012 via connector 5, and the bent pipe is locked and fixed to the cover plate 1 via connector 4. Bolted connections have the advantages of secure locking and convenient assembly and disassembly, ensuring a tight connection between the cover plate 1 and the outer ring sleeve 012, and between the bent pipe 010 and the cover plate 1, preventing loosening during operation, improving the overall reliability of the device connection, and facilitating subsequent component maintenance and replacement.

[0032] In the embodiments, such as Figure 5 As shown, the top of the outer ring sleeve 012 is provided with a positioning boss 14 that mates with the turntable 02. The positioning boss 14 mates with the turntable 02 to achieve precise positioning and assembly of the outer ring sleeve 012 and the turntable 02, avoiding insufficient coaxiality caused by assembly deviation, reducing component wear, and strengthening the stability of the connection between the two, ensuring smooth rotation of the turntable 02, and improving the overall operating accuracy of the device.

[0033] Obviously, the above embodiments of the present invention are merely illustrative examples and not intended to limit the implementation of the invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. However, these obvious variations or modifications derived from the essential spirit of the present invention still fall within the scope of protection of the present invention.

Claims

1. An integrated slewing support device for a port oil transport arm, comprising an inner ring column (014), a turntable (02), and a bend (010), wherein flanges (011) are provided at both ends of the bend (010), the inner ring column (014) is installed on the upper end of the column (01), and the inner ring column (014) is equipped with an outer ring sleeve (012), characterized in that, Also includes: Cover plate (1) is fixed to the bottom surface of turntable (02); Roller (2) is set between the inner ring column (014) and the outer ring sleeve (012) to bear the overturning moment brought by the turntable (02); The ball bearing (3) is disposed between the inner ring column (014) and the outer ring sleeve (012) to constrain the axial displacement of the inner ring column (014) and the outer ring sleeve (012); Connector No. 1 (4) is used to connect cover plate (1) and flange (011); Connector No. 2 (5) is used to connect cover plate (1) and outer ring sleeve (012).

2. The integrated slewing support device for port oil transport arms as described in claim 1, characterized in that: A sealing ring (6) is provided between the groove of the outer ring sleeve (012) and the inner ring column (014), and a second sealing ring (7) is provided between the inner ring column (014) and the outer ring sleeve (012), between the inner ring column (014) and the cover plate (1), and between the outer ring sleeve (012) and the cover plate (1).

3. The integrated slewing support device for port oil transport arms as described in claim 1, characterized in that: The rollers (2) and balls (3) are arranged in a full circle along the annular groove between the inner ring column (014) and the outer ring sleeve (012).

4. The integrated slewing support device for port oil transport arms as described in claim 1, characterized in that: The roller (2) is positioned at the top of the inner ring column (014) and the outer ring sleeve (012), and the bottom surface of the cover plate (1) is in close contact with the top surface of the roller (2).

5. The integrated slewing support device for port oil transport arms as described in claim 1, characterized in that: The outer ring sleeve (012) is provided with a first mounting groove (8) for cooperating with the roller (2) and a second mounting groove (9) for cooperating with the ball (3). The second mounting groove (9) is provided with an oil injection hole (10) and a disassembly hole (11) on its side. The inner wall of the outer ring sleeve (012) is evenly distributed with oil passage grooves (12), which are connected to the first mounting groove (8) and the second mounting groove (9) respectively.

6. The integrated slewing support device for port oil transport arms as described in claim 1, characterized in that: The inner ring column (014) has a channel at its center that matches the main oil delivery channel inside the column (01), and the inner ring column (014) has several light-reducing holes (13) evenly opened around its circumference.

7. The integrated slewing support device for port oil transport arms as described in claim 1, characterized in that: Both the first connector (4) and the second connector (5) are bolts. The cover plate (1) is locked and fixed to the outer ring (012) through the second connector (5). The bent pipe is locked and fixed to the cover plate (1) through the first connector (4).

8. The integrated slewing support device for port oil transport arms as described in claim 1, characterized in that: The top of the outer ring sleeve (012) is provided with a positioning boss (14) that cooperates with the turntable (02).

Images