A container loading and unloading crane based on a port terminal

Abstract

The application discloses a container loading and unloading crane based on a port wharf, which comprises a steel rail laid on the ground, a steel wheel assembly arranged on the top end of the steel rail in a rolling mode, a crane main body arranged on the top end of the steel wheel assembly, a cleaning piece arranged on the top end of the steel rail in a sliding mode and fixedly connected with the crane main body at one end, and an adding piece fixedly arranged on the side end of the steel rail. In the application, the automatic cleaning of sundries on the surface of the steel rail can be realized through the cleaning piece, manual inspection and cleaning are not needed, the workload of manual operation and maintenance is reduced, the lubricating oil can be accurately delivered to the contact position of the steel rail and the steel wheel assembly, the rolling friction is reduced, the abrasion of the steel wheel assembly and the steel rail is reduced, the problems of walking obstruction, inaccurate positioning and rail biting caused by sundries are avoided, the stability and safety of the crane walking are improved, the service life of the equipment is prolonged, the package type cleaning design and the accurate lubricating structure are suitable for the complex operation environment of the port wharf, and the cleaning and lubricating effects are ensured.

Description

Technical Field

[0001] This invention relates to the field of container loading and unloading equipment technology, specifically a container loading and unloading crane based at a port terminal. Background Technology

[0002] Container handling at port terminals involves the entire process of moving and stacking containers back and forth between ships, docks, and storage yards. It is also the core business of ports. Rail-mounted container gantry cranes are one of the commonly used equipment for container handling. They mainly consist of a gantry metal frame, a trolley traveling mechanism, a trolley lifting mechanism, a container telescopic spreader, an electrical control system, and a traveling rail. By reciprocating along the rail, moving the trolley laterally, and lifting and locking the spreader, they can realize the stacking, transfer, and loading / unloading of containers.

[0003] The existing rail-mounted container gantry cranes have very high requirements for the flatness and cleanliness of the rails. Stones, sand, debris, rust, ice and snow on the top surface, sides and rail gaps of the rails must be cleaned regularly. Generally, manual inspection and cleaning are arranged, or simple devices such as sweepers and mud scrapers are installed, but the effect is limited and manual maintenance is still required. Summary of the Invention

[0004] The purpose of this invention is to address the problem that existing rail-mounted container gantry cranes require high levels of track flatness and cleanliness, and that the top, sides, and gaps of the rails, as well as the accumulation of stones, sand, debris, rust, ice, and snow, need to be cleaned regularly. While manual inspections and cleaning are typically carried out, or simple devices such as sweepers and scrapers are installed, the effectiveness is limited and manual maintenance is still required. This invention provides a container loading and unloading crane based at port terminals.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a container loading and unloading crane based on a port terminal, comprising: steel rails laid on the ground, a steel wheel assembly rolled on the top of the steel rails, a crane body on the top of the steel wheel assembly, a cleaning component slidably disposed on the top of the steel rails, one end of the cleaning component being fixedly connected to the crane body, an additive component fixedly disposed on the side end of the steel rails, two sets of cleaning components disposed on each set of steel rails, and the two sets of cleaning components being mirror-symmetrically distributed on both sides of the steel wheel assembly, and one set of additive components disposed on each set of steel rails; The cleaning component includes a connecting block fixedly connected to one end of the crane body. A refueling tank containing lubricating oil is fixedly connected to one end of the connecting block. A support block is fixedly connected to the bottom of the refueling tank. A cleaning block is fixedly connected to the bottom of the support block. The top of the cleaning block is fixedly connected to the bottom of the refueling tank. The cleaning block is slidably connected to the rail and wraps around the left, right, and top sides of the rail.

[0006] As a further aspect of the present invention: the top of the cleaning block is V-shaped, and two sets of support blocks are provided, symmetrically distributed on both sides of the top inclined surface of the cleaning block with the V-shaped top. The side of the cleaning block away from the crane body is inclined, and the two sides of the inclined surface of the cleaning block are arc surfaces, so that when the cleaning block slides on the rail, it can scoop up stones, sand, ice and snow on the rail and discharge them away from the rail along the arc surfaces on both sides of the inclined surface.

[0007] As a further embodiment of the present invention: a drain hole 1 is provided through the bottom of the fuel tank, and a drain hole 2 is provided through the top of the cleaning block. The drain hole 1 and the drain hole 2 are connected. The drain hole 2 is a conical hole with a larger diameter at the top and a smaller diameter at the bottom. The diameter of the drain hole 1 is smaller than the diameter of the top of the drain hole 2. A limiting block is fixedly connected inside the drain hole 2. The limiting block is a conical structure. A connecting hole is provided through the top of the limiting block. The connecting hole and the drain hole 2 are on the same axis. A conical guide slope is provided at the top of the limiting block. A ball bearing is rotatably connected inside the drain hole 2. The ball bearing is located below the limiting block, and its diameter is larger than the bottom diameter of the drain hole 2, so that the ball bearing is restricted below the limiting block. There is a gap for lubricating oil to flow between the ball bearing, the limiting block, and the inner wall of the drain hole 2. The bottom end of the ball bearing penetrates the drain hole 2 and abuts against the top of the rail.

[0008] As a further embodiment of the present invention: the additive includes a base fixedly connected to the side end of the rail, a support column fixedly connected to the top of the base, an oil tank fixedly connected to the top of the support column, a guide platform fixedly connected to the bottom of the inside of the oil tank, a drain pipe extending through the oil tank near the cleaning component, the drain pipe being positioned above the guide platform, and the bottom of the drain pipe being flush with the lowest point of the top of the guide platform, the drain pipe being inclined, with the side near the cleaning component being the lowest point, and a limit cylinder fixedly connected inside the drain pipe.

[0009] As a further embodiment of the present invention: a conical flow hole is provided through the limiting cylinder, the conical flow hole having a larger diameter on the side near the oil tank, and a sealing block is inserted into the conical flow hole. The sealing block is conical and its outer diameter is adapted to the flow hole. The length of the sealing block is greater than that of the flow hole. In the initial state, due to the inclined setting of the drain pipe, and due to the weight of the sealing block itself and the thrust of the lubricating oil in the oil tank, the sealing block is completely inserted into the flow hole to block the drain pipe. At this time, one side of the sealing block penetrates the flow hole and extends to the drain outlet near the drain pipe.

[0010] As a further embodiment of the present invention: a guide tube is fixedly connected inside the fuel tank. The guide tube is inclined and the side facing the fuel tank is higher. A clearance groove is opened through the outer circular surface of the guide tube. Four sets of clearance grooves are evenly distributed in a cross shape on the outer circular surface of the guide tube. A spring is installed inside the guide tube. One end of the spring is fixedly connected to the inner wall of the fuel tank, and the other end of the spring is fixedly connected to an activation cylinder. The activation cylinder penetrates the side of the fuel tank near the fuel tank and has an open end facing the fuel tank. The outer diameter of the activation cylinder is the same as the inner diameter of the drain pipe.

[0011] As a further embodiment of the present invention: the end face of the activation cylinder near the oil tank has an arc surface, and an abutment frame is fixedly connected to the end face of the activation cylinder near the oil tank. A set of magnetic blocks is embedded in the corresponding surfaces of the abutment frame and the sealing block, and the corresponding surfaces of the two sets of magnetic blocks are opposite poles. A drain groove is opened at the bottom of the activation cylinder, and the drain groove is connected to the inside of the activation cylinder. The drain groove is aligned and connected with a set of clearance grooves.

[0012] As a further embodiment of the present invention: a float frame is slidably connected inside the refueling tank, an installation rod is fixedly connected inside the float frame, a support rod is fixedly connected to the top of the installation rod, a reset block one is fixedly connected to the top of the support rod, the reset block one is inclined and the inclined surface faces upward, a guide frame is fixedly connected to the top of the float frame, the top of the guide frame is inclined and tilted towards the inside of the float frame, and a reset block two is fixedly connected to the bottom of the activation cylinder, the reset block two is located on the side of the drain tank away from the drain pipe, and the bottom of the reset block two is inclined.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention enables automatic cleaning of debris on the surface of the rails through the cleaning component, eliminating the need for manual inspection and cleaning, reducing the workload of manual operation and maintenance. At the same time, it can accurately deliver lubricating oil to the contact parts between the rails and the steel wheel assembly, reducing rolling friction, reducing wear on the steel wheel assembly and the rails, avoiding problems such as obstructed movement, inaccurate positioning, and rail wear caused by debris, improving the stability and safety of crane movement, and extending the service life of the equipment. Its enclosed cleaning design and precise lubrication structure are suitable for the complex operating environment of port terminals, ensuring cleaning and lubrication effects. 2. The invention enables automatic lubricant replenishment through the addition component, eliminating the need for frequent manual refilling of the lubricant tank, significantly reducing labor costs. Its automatic sealing design prevents lubricant leakage and waste, and the precise docking structure ensures smooth replenishment. Combined with the liquid level control of the float frame, it can automatically adjust the amount of lubricant to avoid overflow or insufficient replenishment. It is suitable for the continuous operation requirements of port and dock cranes, improves the automation level and operating efficiency of the device, and reduces maintenance intervention. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of this invention; Figure 3 This is a schematic diagram of the cleaning component in this invention; Figure 4 In this invention Figure 3 A schematic diagram of the structure at point A; Figure 5 In this invention Figure 4 A schematic diagram of the structure at point B; Figure 6 This is a schematic diagram of the cleaning block in this invention; Figure 7 This is a side view of the structure of the cleaning block in this invention; Figure 8 This is a top view of the cleaning block structure in this invention; Figure 9 This is a schematic diagram of the activation cylinder in this invention; Figure 10 In this invention Figure 9 A schematic diagram of the structure at point C; Figure 11 This is a schematic diagram of the reset block in this invention; Figure 12 In this invention Figure 11 A schematic diagram of the structure at point D.

[0015] In the diagram: 1. Rail; 2. Steel wheel assembly; 3. Crane body; 4. Cleaning component; 41. Connecting block; 42. Oil tank; 43. Support block; 44. Cleaning block; 45. Drain hole one; 46. Drain hole two; 47. Limiting block; 48. Ball bearing; 5. Additive; 51. Base; 52. Support column; 53. Oil tank; 54. Guide platform; 55. Drain pipe; 56. Limiting cylinder; 57. Sealing block; 58. Guide tube; 59. Clearance groove; 510. Spring; 511. Activation cylinder; 512. Abutment frame; 513. Drain groove; 514. Reset block two; 515. Floating frame; 516. Mounting rod; 517. Support rod; 518. Reset block one; 519. Guide frame. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0018] Reference Figures 1 to 2 In this embodiment of the invention, a container loading and unloading crane based on a port terminal includes: a steel rail 1 laid on the ground, a steel wheel assembly 2 rolled on the top of the steel rail 1, a crane body 3 on the top of the steel wheel assembly 2, a cleaning component 4 slidably disposed on the top of the steel rail 1, and one end of the cleaning component 4 fixedly connected to the crane body 3, an additive component 5 fixedly disposed on the side end of the steel rail 1, two sets of cleaning components 4 disposed on each set of steel rail 1, and the two sets of cleaning components 4 are mirror-symmetrically distributed on both sides of the steel wheel assembly 2, and one set of additive components 5 disposed on each set of steel rail 1.

[0019] Reference Figures 3 to 8The cleaning component 4 includes a connecting block 41 fixedly connected to one end of the crane body 3. One end of the connecting block 41 is fixedly connected to a lubricating oil tank 42, which temporarily stores lubricating oil. A support block 43 is fixedly connected to the bottom of the lubricating oil tank 42, and a cleaning block 44 is fixedly connected to the bottom of the support block 43. The top of the cleaning block 44 is fixedly connected to the bottom of the lubricating oil tank 42. The cleaning block 44 is slidably connected to the rail 1 and wraps around the left, right, and top sides of the rail 1. The top of the cleaning block 44 is V-shaped. Two sets of support blocks 43 are symmetrically distributed on the inclined surfaces on both sides of the top of the V-shaped cleaning block 44. The side of the cleaning block 44 away from the crane body 3 is inclined, and the two sides of the inclined surface of the cleaning block 44 are arc surfaces. When the cleaning block 44 slides on the rail 1, it can scoop up stones, sand, ice, snow, etc., from the rail 1 and discharge them along the arc surfaces on both sides of the inclined surface away from the rail 1. The bottom of the lubricating oil tank 42 has a through-hole opening. Drainage hole 45 is provided first, and drainage hole 46 is provided through the top of cleaning block 44. Drainage hole 45 and drainage hole 46 are connected. Drainage hole 46 is a conical hole with a larger diameter at the top and a smaller diameter at the bottom. The diameter of drainage hole 45 is smaller than the diameter of the top of drainage hole 46. Limiting block 47 is fixedly connected inside drainage hole 46. Limiting block 47 is a conical structure. A connecting hole is provided through the top of limiting block 47. The connecting hole is on the same axis as drainage hole 46. The top of the limiting block 47 is provided with a tapered guide slope, and a ball bearing 48 is rotatably connected inside the drain hole 46. The ball bearing 48 is located below the limiting block 47, and the diameter of the ball bearing 48 is larger than the bottom diameter of the drain hole 46, so that the ball bearing 48 is restricted below the limiting block 47. There is a gap between the ball bearing 48, the limiting block 47, and the inner wall of the drain hole 46 for lubricating oil to flow. The bottom end of the ball bearing 48 penetrates the drain hole 46 and abuts against the top of the rail 1.

[0020] The above solution, through the coordinated operation of the connecting block 41, oil tank 42, support block 43, cleaning block 44, drain hole 1 45, drain hole 2 46, limit block 47 and ball bearing 48 of the cleaning component 4, can not only achieve automatic cleaning of debris on the surface of the rail 1, avoiding obstruction and inaccurate positioning of the steel wheel assembly 2 caused by debris, but also accurately deliver the lubricating oil in the oil tank 42 to the surface of the rail 1, reducing the rolling friction between the steel wheel assembly 2 and the rail 1, reducing component wear. At the same time, the design of the ball bearing 48 abutting against the rail 1 can avoid lubricating oil waste, ensure uniform lubrication effect, and improve the stability and smoothness of the crane's movement.

[0021] Reference Figures 9 to 12Additive 5 includes a base 51 fixedly connected to the side end of the rail 1. A support column 52 is fixedly connected to the top of the base 51. An oil tank 53 is fixedly connected to the top of the support column 52. A guide platform 54 is fixedly connected to the bottom of the inside of the oil tank 53. A drain pipe 55 is provided through the oil tank 53 near the cleaning component 4. The drain pipe 55 is located above the guide platform 54, and the bottom of the drain pipe 55 is flush with the lowest point of the top of the guide platform 54. The drain pipe 55 is inclined, with the lower point near the cleaning component 4. A limiting cylinder 56 is fixedly connected inside the drain pipe 55. A conical flow hole is provided through the limiting cylinder 56. The conical flow hole has a larger diameter near the oil tank 53. A sealing block 57 is inserted into the conical flow hole. The sealing block 57 is conical and has an outer diameter of 57. The diameter is adapted to the flow hole, and the length of the sealing block 57 is greater than the flow hole. In the initial state, due to the inclined setting of the drain pipe 55, and due to the self-weight of the sealing block 57 and the thrust of the lubricating oil in the oil tank 53, the sealing block 57 is completely inserted into the flow hole, sealing the drain pipe 55. At this time, one side of the sealing block 57 penetrates the flow hole and extends to the drain port of the drain pipe 55. A guide tube 58 is fixedly connected inside the oil tank 42. The guide tube 58 is inclined, and the side facing the oil tank 53 is higher. A relief groove 59 is opened through the outer circle of the guide tube 58. Four sets of relief grooves 59 are evenly distributed in a cross shape on the outer circle of the guide tube 58. A spring 510 is installed inside the guide tube 58. One end of the spring 510 is connected to the oil tank. 42 is fixedly connected to the inner wall. The other end of the spring 510 is fixedly connected to the activation cylinder 511. The activation cylinder 511 passes through the oil tank 42 near the oil storage tank 53 and is open at the side facing the oil storage tank 53. The outer diameter of the activation cylinder 511 is the same as the inner diameter of the drain pipe 55. The end face of the activation cylinder 511 near the oil storage tank 53 is beveled. A connecting frame 512 is fixedly connected to the end face of the activation cylinder 511 near the oil storage tank 53. A set of magnetic blocks is embedded on the corresponding surfaces of the connecting frame 512 and the sealing block 57, and the corresponding surfaces of the two sets of magnetic blocks are opposite poles. A drain groove 513 is opened at the bottom of the activation cylinder 511. The drain groove 513 is connected to the inside of the activation cylinder 511. The drain groove 513 is aligned and connected with a set of clearance grooves 59. When the cleaning component 4 follows the crane body 3 During the movement on the rail 1, the arc surface of the activation cylinder 511 abuts against the outer side of the drain pipe 55, causing the activation cylinder 511 to move away from the drain pipe 55 under the action of abutment, and causing the spring 510 to contract under force until the end face of the activation cylinder 511 is aligned with the drain pipe 55. As the cleaning component 4 continues to move, when the activation cylinder 511 is aligned with the axis of the drain pipe 55, the spring 510 returns to its original length, pushing the activation cylinder 511 into the drain pipe 55. At this time, the abutment frame 512 abuts against the sealing block 57 and is magnetically connected under the action of the magnetic block. As the activation cylinder 511 is inserted into the drain pipe 55, the activation cylinder 511 pushes the sealing block 57 towards the oil storage tank 53, creating a gap between the sealing block 57 and the flow hole in the limiting cylinder 56.This allows the lubricating oil to sequentially pass through the drain pipe 55, the limiting cylinder 56, the activation cylinder 511, the drain trough 513, and the clearance trough 59 into the oil tank 42.

[0022] The above solution, through the cooperation of the base 51, support column 52, oil tank 53, guide platform 54, drain pipe 55, limiting cylinder 56, sealing block 57, guide pipe 58, clearance groove 59, spring 510, activation cylinder 511 and abutment frame 512 of the adder 5, realizes automatic replenishment of lubricating oil, eliminating the need for frequent manual addition of lubricating oil to the oil tank 42, reducing manual maintenance costs. At the same time, the conical design of the sealing block 57, combined with its own weight and the thrust of lubricating oil, can realize automatic sealing of the drain pipe 55, avoiding lubricating oil leakage and waste. The arc surface design of the activation cylinder 511 facilitates its precise docking with the drain pipe 55. The setting of the magnetic block ensures that the abutment frame 512 and the sealing block 57 are stably connected, ensuring a smooth replenishment process.

[0023] Reference Figures 9 to 12 A float frame 515 is slidably connected inside the fuel tank 42. An installation rod 516 is fixedly connected inside the float frame 515. A support rod 517 is fixedly connected to the top of the installation rod 516. A reset block 518 is fixedly connected to the top of the support rod 517. The reset block 518 is inclined with its inclined surface facing upwards. A guide frame 519 is fixedly connected to the top of the float frame 515. The top of the guide frame 519 is inclined and tilted towards the inside of the float frame 515. A reset block 514 is fixedly connected to the bottom of the activation cylinder 511. The reset block 514 is located on the side of the drain trough 513 away from the drain pipe 55. The bottom of the reset block 514 is inclined. As the fuel in the fuel tank 42... As the number of bodies increases, the float frame 515 moves upward due to buoyancy until the top of the reset block 1 518 abuts against the bottom of the reset block 2 514. Guided by the inclined plane, the reset block 2 514 moves away from the drain pipe 55 and drives the activation cylinder 511 to move synchronously, causing the spring 510 to contract under force. As the activation cylinder 511 moves, and due to the magnetic connection between the abutting frame 512 and the sealing block 57 when they abut, the sealing block 57 moves synchronously and re-seals the drain pipe 55 until the activation cylinder 511 exits the drain pipe 55. During this process, the magnetic connection between the abutting frame 512 and the sealing block 57 is released due to the limiting cylinder 56 limiting the sealing block 57.

[0024] The above scheme achieves automatic control of the lubricating oil volume in the oil tank 42 through the coordinated action of the float frame 515, mounting rod 516, support rod 517, reset block 1 518, guide frame 519, and reset block 2 514. When the lubricating oil reaches the preset level, the replenishment can be automatically stopped to avoid lubricating oil overflow, waste, and equipment failure. The inclined design of the guide frame 519 can guide the lubricating oil to be evenly distributed and avoid local liquid accumulation. The inclined surfaces of reset block 1 518 and reset block 2 514 cooperate to ensure that the activation cylinder 511 is stably reset, thereby achieving precise sealing of the drain pipe 55 by the sealing block 57 and improving the automation level and reliability of the device.

[0025] The working principle of this invention is as follows: When using this device, firstly, sufficient lubricating oil is added to the oil storage tank 53 of the additive 5, and an appropriate amount of lubricating oil is added to the oil filling tank 42 of the cleaning component 4. In the initial state, under the action of its own weight and the thrust of the lubricating oil in the oil storage tank 53, the sealing block 57 of the additive 5 is completely inserted into the conical flow hole of the limiting cylinder 56, sealing the drain pipe 55 to prevent lubricating oil leakage. The lubricating oil in the oil filling tank 42 enters the drain hole 2 46 through the drain hole 1 45, is guided by the conical guide slope of the limiting block 47, and flows out from the gap between the ball 48 and the limiting block 47 and the inner wall of the drain hole 2 46, dripping onto the top of the rail 1, realizing the lubrication of the contact part between the rail 1 and the steel wheel assembly 2. When the crane body 3 starts and passes through the steel wheel assembly 2, When the crane body 3 moves along the rail 1, the cleaning components 4 on both sides slide synchronously on the rail 1. The cleaning blocks 44 of the cleaning components 4 wrap around the left, right, and top sides of the rail 1. Since the side of the cleaning block 44 away from the crane body 3 is inclined and the two sides are curved, during the sliding process, it can scoop up stones, sand, ice, snow, and other debris on the rail 1 and guide the debris away from the rail 1 along the curved surfaces on both sides of the inclined surface, preventing the debris from affecting the movement of the steel wheel assembly 2. At the same time, the V-shaped design at the top of the cleaning block 44, together with the support block 43, can enhance the structural stability of the cleaning block 44 and prevent the cleaning block 44 from deforming or being damaged when cleaning debris. As the crane body 3 continues to move, when the cleaning component 4 moves to the position of the adding component 5, the excitation on the cleaning component 4... The curved surface of the activated cylinder 511 first abuts against the outside of the drain pipe 55. Under the action of the abutment force, the activated cylinder 511 moves away from the drain pipe 55, while compressing the spring 510 in the guide tube 58 until the end face of the activated cylinder 511 is aligned with the drain port of the drain pipe 55. As the cleaning component 4 continues to move, when the axis of the activated cylinder 511 is aligned with the drain pipe 55, the spring 510 returns to its original length, pushing the activated cylinder 511 into the drain pipe 55. At this time, the abutment bracket 512 on the activated cylinder 511 abuts against the sealing block 57. Since the opposite poles of the two sets of magnetic blocks are opposite, they generate a magnetic attraction and are stably connected. At the same time, the activated cylinder 511 pushes the sealing block 57 to the side of the oil reservoir 53, so that a gap is created between the sealing block 57 and the conical flow hole of the limiting cylinder 56. The lubricating oil in the oil storage tank 53, guided by the guide platform 54, converges at the drain pipe 55, and then flows sequentially through the flow hole of the limiting cylinder 56, the interior of the activation cylinder 511, the drain groove 513, and the clearance groove 59 of the guide pipe 58 into the oil filling tank 42, realizing automatic replenishment of lubricating oil. The float frame 515 in the oil filling tank 42 will gradually rise as the amount of lubricating oil increases. The float frame 515 drives the mounting rod 516, the support rod 517, and the reset block 1 518 to move upward synchronously. At the same time, the guide frame 519 guides the lubricating oil to be evenly distributed in the oil filling tank 42 to avoid local liquid accumulation. When the lubricating oil in the oil filling tank 42 reaches the preset level, the top of the reset block 1 518 on the float frame 515 abuts against the bottom of the reset block 2 514 at the bottom of the activation cylinder 511.Since both are designed with an inclined surface, under the continuous upward thrust of the floating frame 515, the reset block 514 moves away from the drain pipe 55, thereby driving the activation cylinder 511 to move synchronously. The spring 510 is compressed again. When the activation cylinder 511 moves, it is magnetically connected to the sealing block 57 through the abutment frame 512, causing the sealing block 57 to move synchronously away from the drain pipe 55. When the activation cylinder 511 gradually withdraws from the drain pipe 55, the limiting cylinder 56 limits the sealing block 57, causing the magnetic connection between the sealing block 57 and the abutment frame 512 to be released. Under the influence of its own weight and the thrust of the lubricating oil in the oil tank 53, the sealing block 57 re-inserts into the flow hole of the limiting cylinder 56, sealing the drain pipe 55 and stopping the lubricating oil supply. The crane body 3 continues to move, and the cleaning component 4 moves along with it, continuously cleaning and lubricating the rail 1. When the lubricating oil in the oil tank 42 is consumed to a certain amount, the float frame 515 drops with the liquid level, the reset block 1 518 separates from the reset block 2 514, the spring 510 returns to its original length, pushing the activation cylinder 511 to reset, waiting for the next connection with the adding component 5 for replenishment. This cycle repeats. The automatic cleaning, lubrication, and lubricant replenishment of rail 1 ensure the stable and efficient operation of the crane body 3. The cleaning component 4 automatically removes debris from the surface of rail 1, eliminating the need for manual inspection and reducing maintenance workload. Simultaneously, it precisely delivers lubricant to the contact area between rail 1 and the wheel assembly 2, reducing rolling friction and wear on both components. This prevents problems such as obstructed movement, inaccurate positioning, and rail wear caused by debris, improving the stability and safety of the crane's movement and extending its service life. Its encapsulated cleaning design... With its precise lubrication structure, it adapts to the complex operating environment of port terminals, ensuring cleanliness and lubrication. Automatic lubrication replenishment is achieved through the adder 5, eliminating the need for frequent manual refilling of the lubrication tank 42, significantly reducing labor costs. Its automatic sealing design prevents lubrication leakage and waste, and the precise docking structure ensures smooth replenishment. Combined with the liquid level control of the float frame 515, automatic adjustment of the lubrication quantity is achieved, preventing overflow or insufficient replenishment. It meets the continuous operation requirements of port terminal cranes, improving the automation level and operational efficiency of the device, and reducing maintenance intervention.

[0026] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A container handling crane based at a port terminal, comprising: A steel rail (1) laid on the ground is characterized in that a steel wheel assembly (2) is rolled on the top of the steel rail (1), a crane body (3) is installed on the top of the steel wheel assembly (2), a cleaning component (4) is slidably installed on the top of the steel rail (1), and one end of the cleaning component (4) is fixedly connected to the crane body (3). An additive component (5) is fixedly installed on the side end of the steel rail (1). Two sets of cleaning components (4) are installed on each set of steel rails (1), and the two sets of cleaning components (4) are mirror-symmetrically distributed on both sides of the steel wheel assembly (2). One set of additive components (5) is installed on each set of steel rails (1). The cleaning component (4) includes a connecting block (41) fixedly connected to one end of the crane body (3). One end of the connecting block (41) is fixedly connected to a refueling tank (42) that temporarily stores lubricating oil. The bottom end of the refueling tank (42) is fixedly connected to a support block (43). The bottom end of the support block (43) is fixedly connected to a cleaning block (44). The top end of the cleaning block (44) is fixedly connected to the bottom end of the refueling tank (42). The cleaning block (44) is slidably connected to the rail (1) and wraps the left, right and top sides of the rail (1). The bottom of the fuel tank (42) is provided with a drain hole 1 (45), and the top of the cleaning block (44) is provided with a drain hole 2 (46). The drain hole 1 (45) and the drain hole 2 (46) are connected. The drain hole 2 (46) is a conical hole with a larger diameter at the top and a smaller diameter at the bottom. The diameter of the drain hole 1 (45) is smaller than the diameter of the top of the drain hole 2 (46). A limiting block (47) is fixedly connected inside the drain hole 2 (46). The limiting block (47) is a conical structure. The top of the limiting block (47) is provided with a connecting hole, which is connected to the drain hole. The two (46) are on the same axis. The top of the limiting block (47) is provided with a conical guide slope. The drain hole two (46) is rotatably connected with a ball (48). The ball (48) is located below the limiting block (47), and the diameter of the ball (48) is larger than the bottom diameter of the drain hole two (46), so that the ball (48) is restricted below the limiting block (47). There is a gap between the ball (48), the limiting block (47), and the inner wall of the drain hole two (46) for lubricating oil to flow. The bottom end of the ball (48) penetrates the drain hole two (46) and abuts against the top of the rail (1). The additive (5) includes a base (51) fixedly connected to the side end of the rail (1), a support column (52) fixedly connected to the top of the base (51), an oil tank (53) fixedly connected to the top of the support column (52), a guide platform (54) fixedly connected to the bottom of the inside of the oil tank (53), a drain pipe (55) is provided through the oil tank (53) on the side near the cleaning component (4), the drain pipe (55) is located above the guide platform (54), and the bottom of the drain pipe (55) is flush with the lowest point of the top of the guide platform (54), the drain pipe (55) is inclined, and the side near the cleaning component (4) is the lowest point, and a limit cylinder (56) is fixedly connected inside the drain pipe (55). A guide tube (58) is fixedly connected inside the fuel tank (42). The guide tube (58) is inclined and the side facing the oil storage tank (53) is higher. A clearance groove (59) is opened through the outer circle of the guide tube (58). There are four sets of clearance grooves (59) evenly distributed in a cross shape on the outer circle of the guide tube (58). A spring (510) is installed inside the guide tube (58). One end of the spring (510) is fixedly connected to the inner wall of the fuel tank (42). The other end of the spring (510) is fixedly connected to an activation cylinder (511). The activation cylinder (511) penetrates the side of the fuel tank (42) near the oil storage tank (53) and the side facing the oil storage tank (53) is open. The outer diameter of the activation cylinder (511) is the same as the inner diameter of the drain pipe (55). The activation cylinder (511) has an arc-shaped end face near the oil tank (53). An abutment frame (512) is fixedly connected to the end face of the activation cylinder (511) near the oil tank (53). A set of magnetic blocks is embedded on the corresponding surfaces of the abutment frame (512) and the sealing block (57), and the corresponding surfaces of the two sets of magnetic blocks are opposite poles. A drain groove (513) is opened at the bottom of the activation cylinder (511). The drain groove (513) is connected to the inside of the activation cylinder (511). The drain groove (513) is aligned and connected with a set of clearance grooves (59).

2. The container loading and unloading crane based on a port terminal according to claim 1, characterized in that, The top of the cleaning block (44) is V-shaped. Two sets of support blocks (43) are provided, symmetrically distributed on the two inclined surfaces of the top of the cleaning block (44) which is V-shaped. The side of the cleaning block (44) away from the crane body (3) is inclined, and the two sides of the inclined surface of the cleaning block (44) are arc surfaces.

3. A container loading and unloading crane based on a port terminal according to claim 2, characterized in that, The limiting cylinder (56) has a conical flow hole that runs through it. The conical flow hole has a large diameter on the side near the oil tank (53). A sealing block (57) is inserted into the conical flow hole. The sealing block (57) is conical and its outer diameter is adapted to the flow hole. The length of the sealing block (57) is greater than that of the flow hole. In the initial state, due to the inclined setting of the drain pipe (55) and the weight of the sealing block (57) itself, as well as the thrust of the lubricating oil in the oil tank (53), the sealing block (57) is completely inserted into the flow hole to block the drain pipe (55). At this time, one side of the sealing block (57) runs through the flow hole and extends to the drain port near the drain pipe (55).

4. A container loading and unloading crane based on a port terminal according to claim 3, characterized in that, A float frame (515) is slidably connected inside the refueling tank (42). An installation rod (516) is fixedly connected inside the float frame (515). A support rod (517) is fixedly connected to the top of the installation rod (516). A reset block one (518) is fixedly connected to the top of the support rod (517). The reset block one (518) is inclined and the inclined surface faces upward. A guide frame (519) is fixedly connected to the top of the float frame (515). The top of the guide frame (519) is inclined and tilted towards the inside of the float frame (515). A reset block two (514) is fixedly connected to the bottom of the activation cylinder (511). The reset block two (514) is located on the side of the drain trough (513) away from the drain pipe (55). The bottom of the reset block two (514) is inclined.

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