Annular high-position oil supplementing tank of oil cylinder

Abstract

The utility model relates to the technical field of hydraulic systems, in particular to an oil cylinder annular high-position oil supplementing tank which comprises a tank body arranged at the top of an oil cylinder, and the tank body annularly wraps the outer side face of the oil cylinder and is fixedly connected with the oil cylinder. The box body comprises a first end plate, a second end plate and a cylinder body, the first end plate and the second end plate are arranged in parallel and are fixedly connected with the two ends of the cylinder body in the length direction respectively, and an oil inlet pipeline is arranged on the outer side of the first end plate and communicates with the interior of the box body and the interior of the oil cylinder; the axis of the cylinder body and the axis of the oil cylinder are collinear, the inner side face of the cylinder body is matched with the outer side face of the oil cylinder, and the cylinder body is of a whole-plate bent structure and is connected end to end to form one or two weld joints. By the adoption of the integrated arrangement mode, extra large space does not need to be occupied, the assembly work of the oil tank can be synchronously achieved while the oil cylinder is assembled, tedious assembly operation is omitted, and the assembly efficiency is improved; and the wind load resistance of the oil supplementing tank can be effectively improved, and the stable oil supplementing process is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic system technology, and in particular to a ring-shaped high-level oil replenishment tank for oil cylinders. Background Technology

[0002] During the opening and closing of deep-water gates driven by hydraulic cylinders, an integrated oil replenishment tank is usually used for oil replenishment. Generally, the oil replenishment tank is usually set up independently, requiring an additional support frame to be set up on top of the hydraulic cylinder for support and fixation. This occupies a large space, and additional aerial work platforms are required for auxiliary operation during assembly. This brings great inconvenience to some space-constrained working environments and makes it difficult to meet the requirements of compact assembly.

[0003] Furthermore, due to the large size of the oil tank and its high-altitude location, the oil cylinder is connected only through a suspended oil supply line. During the oil supply process, it is inevitably affected by wind loads, which can easily lead to breakage, displacement, or even damage and leakage. This not only affects its own function but may also endanger the safety of the surrounding structure, posing a safety hazard. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a high-level annular oil replenishment tank for hydraulic cylinders, which meets the requirements of efficient, stable and aesthetically pleasing operation during the oil replenishment process of the oil replenishment tank to the hydraulic cylinder, and facilitates inspection and maintenance.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a ring-shaped high-level oil replenishment tank for a hydraulic cylinder, comprising a box body disposed on the top of the hydraulic cylinder, the box body being ring-shaped and covering the outer side of the hydraulic cylinder and being fixedly connected to the hydraulic cylinder;

[0006] The housing includes a first end plate, a second end plate, and a cylinder. The first end plate and the second end plate are arranged parallel to each other and are fixedly connected to both ends of the cylinder along its length. An oil inlet pipe is provided on the outer side of the first end plate, and the oil inlet pipe connects the inside of the housing and the inside of the oil cylinder. The axis of the cylinder is collinear with the axis of the oil cylinder, and the inner side of the cylinder matches the outer side of the oil cylinder. The cylinder is a bent structure made of a single plate, with one or two welds formed by connecting the ends.

[0007] Furthermore, the cross-section of the box along the axial direction is a closed ring.

[0008] Furthermore, the cross-section of the box along the axial direction is a semi-circular shape with an opening on one side.

[0009] Furthermore, the first end plate is located on the side where the cylinder end face is located, and has a first flange hole and a second flange hole. An air filter is installed at the first flange hole, and an internal oil pipe is installed at the second flange hole. Both the air filter and the internal oil pipe are located on the side of the first end plate facing the cylinder body.

[0010] Furthermore, the oil inlet pipe is connected to the internal oil pipe through the second flange hole.

[0011] Furthermore, an oil inlet control valve is provided between the oil inlet pipeline and the second flange hole, and the oil inlet control valve is provided on the outside of the first end plate through a bypass pipeline.

[0012] Furthermore, the second end plate is provided with an oil drain port, and an oil outlet valve is provided at the oil drain port. The oil outlet valve is mounted on the outside of the second end plate.

[0013] Furthermore, the cylinder body includes an inner ring plate, an outer ring plate, and two flat plates. The inner ring plate and the outer ring plate are coaxially arranged, and the axial diameter of the inner ring plate is smaller than that of the outer ring plate. The two flat plates are respectively connected to the inner ring plate and the outer ring plate on both sides along the length direction, and the weld is formed at the junction of one of the flat plates and the inner ring plate.

[0014] Furthermore, an inspection port is provided in the middle of the outer ring plate, and a transparent viewing window is sealed and connected to the inspection port.

[0015] Furthermore, the inspection port is circular.

[0016] The beneficial effects of this utility model are as follows: By adopting an integrated layout, the box structure is set as a ring covering the outer side of the oil cylinder, which does not require a large amount of extra space. The oil tank can be assembled at the same time as the oil cylinder, eliminating cumbersome assembly operations and improving assembly efficiency. Furthermore, the method of directly fixing the oil tank to the oil cylinder makes the oil tank and the oil cylinder form an integrated structure, which can effectively improve the wind load resistance of the oil tank, ensure the stable operation of the oil replenishment process, eliminate safety hazards, and ensure the safety of the surrounding structure. In addition, the integrated structure makes the overall layout coordinated and neat, with strong aesthetics, and also avoids climbing complex work platforms in daily maintenance work, reducing maintenance costs and work difficulty. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the annular high-level oil replenishment tank of the hydraulic cylinder in an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the box in an embodiment of this utility model;

[0019] Figure 3This is a schematic diagram of the assembly structure of the first end plate in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the assembly structure of the second end plate in an embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram of the cylinder body in an embodiment of this utility model.

[0022] Reference numerals: 10. Housing; 20. Oil inlet pipe; 1. First end plate; 1a. First flange hole; 1b. Second flange hole; 2. Second end plate; 2a. Oil drain port; 3. Cylinder body; 3a. Weld; 31. Inner ring plate; 32. Outer ring plate; 32a. Inspection port; 32b. Transparent window; 33. Flat plate; 4. Air filter; 5. Internal oil pipe; 6. Oil inlet control valve; 7. Oil outlet valve. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figures 1 to 5 The cylinder annular high-level oil replenishment tank shown includes a box body 10 disposed on the top of the cylinder, the box body 10 annularly covering the outer surface of the cylinder and fixedly connected to the cylinder.

[0026] The housing 10 includes a first end plate 1, a second end plate 2, and a cylinder 3. The first end plate 1 and the second end plate 2 are arranged parallel to each other and are fixedly connected to both ends of the cylinder 3 along its length. An oil inlet pipe 20 is provided on the outer side of the first end plate 1, which connects the inside of the housing 10 and the inside of the oil cylinder. The axis of the cylinder 3 is collinear with the axis of the oil cylinder, and the inner side of the cylinder matches the outer side of the oil cylinder. The cylinder 3 is a bent structure made of a single plate, and the ends are connected to form one or two welds 3a.

[0027] By adopting an integrated layout, the tank 10 is designed as a ring covering the outer side of the cylinder, eliminating the need for a large additional space. The tank assembly can be carried out simultaneously with the cylinder assembly, eliminating cumbersome assembly operations and improving assembly efficiency. Furthermore, the direct fixed connection between the tank and the cylinder forms an integrated structure, which effectively improves the tank's wind load resistance, ensures stable oil replenishment, eliminates safety hazards, and ensures the safety of surrounding structures. In addition, the integrated structure makes the overall layout coordinated, neat, and aesthetically pleasing, and also avoids climbing complex work platforms during daily maintenance, reducing maintenance costs and difficulty.

[0028] Specifically, the oil replenishment tank is placed on top of the oil cylinder, conforming to the height layout of the oil cylinder, providing a reasonable and stable installation foundation for the oil replenishment tank; the 10-ring body of the tank covers the outer side of the oil cylinder and is fixedly connected to the oil cylinder, which on the one hand maximizes the use of the space around the oil cylinder to achieve a compact layout; on the other hand, the fixed connection enhances the overall stability of the oil replenishment tank and the oil cylinder, resists the influence of external wind and other loads, avoids relative displacement and shaking, and ensures the stability and safety of oil replenishment.

[0029] The first and second end plates 2 are arranged in parallel and fixedly connected to both ends of the cylinder body 3 to form a complete and stable annular box 10, ensuring the structural strength and sealing of the box 10, and being able to withstand the internal oil pressure and external environmental loads to prevent oil leakage and ensure the normal operation of the oil replenishment tank. The oil inlet pipe 20 is located on the outside of the first end plate 1, which facilitates connection with the external oil supply system to realize the input of oil. At the same time, it connects the inside of the box 10 and the inside of the oil cylinder, so that the oil in the oil replenishment tank can be smoothly and efficiently replenished into the oil cylinder to meet the oil volume requirements during the opening and closing of the oil cylinder.

[0030] Furthermore, the collinearity of the cylinder axis 3 with the cylinder axis, and the alignment of the inner side with the outer side of the cylinder, ensure the concentricity and fit between the oil replenishment tank and the cylinder. This results in a tighter and more uniform annular wrapping, optimizing space utilization, reducing stress concentration, further enhancing the overall integrity and stability of the structure, and lowering the risk of deformation caused by eccentric forces. The cylinder body 3, formed by bending a single plate, reduces the number of splicing welds 3a. Compared to splicing multiple plates, this improves the structural strength and sealing performance of the cylinder body 3. Controlling the number of welds 3a to one or two facilitates quality control and inspection, reduces the risk of leakage caused by weld defects 3a, and ensures the reliability of the oil replenishment tank.

[0031] When the deep-water gate needs to be opened or closed, the hydraulic system starts working. Under the action of atmospheric pressure and the assistance of hydraulic system pressure, the oil in the replenishment tank flows smoothly into the cylinder through the oil inlet pipe 20, replenishing the oil consumed by the cylinder due to reciprocating motion in a timely manner, ensuring that the oil in the cylinder is sufficient, and maintaining the cylinder to drive the deep-water gate to complete the opening and closing action smoothly.

[0032] Based on the above embodiments, the cross-section of the housing 10 along the axial direction is a closed ring; this makes the housing 10 form a complete and uniform stress structure in the ring direction, which can better resist the destructive effect of various external loads on the housing 10, avoid stress concentration, thereby enhancing the structural stability and deformation resistance of the oil tank, ensuring that it maintains a good working condition in complex working environments, further enhancing the overall stability and strength of the oil tank and cylinder, and extending its service life.

[0033] As another implementation, the cross-section of the housing 10 along the axial direction is a semi-circular shape with an opening on one side. The opening design allows the housing 10 to be easily fitted onto the hydraulic cylinder. Through simple fixing measures, the oil replenishment tank and the hydraulic cylinder can be tightly fixed together, ensuring that the oil replenishment tank will not shift or shake during operation, thereby ensuring the stability and safety of oil replenishment. Moreover, the semi-circular design is more adaptable to the structure and installation space of the hydraulic cylinder. Its capacity can be adjusted by reasonably adjusting the length of the housing 10 along the axial direction. In some cases where space is limited or the hydraulic cylinder installation position is relatively special, the semi-circular oil replenishment tank can be matched and installed with the hydraulic cylinder more flexibly, avoiding affecting the overall layout and operation of the equipment.

[0034] Based on the above embodiment, the first end plate 1 is located on the side where the cylinder end face is located, and has a first flange hole 1a and a second flange hole 1b. An air filter 4 is installed at the first flange hole 1a, and an internal oil pipe 5 is installed at the second flange hole 1b. Both the air filter 4 and the internal oil pipe 5 are located on the side of the first end plate 1 facing the cylinder body 3. The first end plate 1 not only provides a stable foundation for the fixed connection between the oil tank and the cylinder, but also serves as a bearing platform for installing the air filter 4 and the internal oil pipe 5, ensuring that these two key components can be accurately and firmly installed on the oil tank and ensuring that they function normally.

[0035] The first flange hole 1a allows the air filter 4 to be tightly fitted onto the first end plate 1. The air filter 4 can filter the air entering the oil tank, preventing external impurities from entering the oil system through breathing, ensuring the cleanliness of the oil, and also helping to balance the air pressure inside and outside the oil tank, ensuring the normal flow of oil and the smooth progress of the oil replenishment process.

[0036] The second flange hole 1b is used to assemble the internal oil pipe 5. The internal oil pipe 5 serves as a channel connecting the oil replenishment tank and the inside of the oil cylinder. It can efficiently and stably transport the oil in the oil replenishment tank to the inside of the oil cylinder, meet the oil demand of the oil cylinder during the opening and closing process, ensure the power transmission effect of the hydraulic system, and thus realize the smooth opening and closing operation of the deep water gate.

[0037] Based on the above embodiment, the oil inlet pipe 20 is connected to the internal oil pipe 5 through the second flange hole 1b; the second flange hole 1b provides a precise positioning and sealing interface for the connection between the oil inlet pipe 20 and the internal oil pipe 5, ensuring the coaxiality and sealing of the two, and ensuring that the oil can flow into the cylinder from the oil replenishment tank efficiently and stably; avoiding the interruption of oil flow or the increase of resistance due to poor connection, and improving the oil replenishment efficiency and the response speed of the hydraulic system.

[0038] Based on the above embodiment, an oil inlet control valve 6 is provided between the oil inlet pipe 20 and the second flange hole 1b. The oil inlet control valve 6 is located on the outside of the first end plate 1 via a bypass pipe. The oil inlet control valve 6, through its own valve core, valve seat and other components, can automatically adjust the opening size according to external control signals or system pressure changes, thereby controlling the flow rate and velocity of oil entering the oil cylinder, ensuring the stability and accuracy of the oil replenishment process, and meeting the oil quantity requirements of the oil cylinder under different working conditions. The bypass pipe, as the connection channel between the oil inlet control valve 6 and the first end plate 1, provides an additional flow path for the oil, and also plays a certain role in buffering and protection, reducing the direct impact force of the oil on the oil inlet pipe 20 and the first end plate 1 when the oil enters the oil cylinder, and reducing the risk of pipe vibration and damage caused by pressure shock.

[0039] Based on the above embodiment, the second end plate 2 is provided with an oil drain port 2a, and an oil outlet valve 7 is provided at the oil drain port 2a. The oil outlet valve 7 is mounted on the outside of the second end plate 2. The through design of the oil drain port 2a ensures that the oil can flow out smoothly, realizing the connection between the inside of the oil tank and the external environment when needed. The oil outlet valve 7 is used to control the opening and closing of the oil drain port 2a, so that when it is necessary to replace the oil in the oil tank or clean impurities, the oil can be discharged conveniently and quickly, simplifying the maintenance operation process and reducing maintenance time and workload.

[0040] Based on the above embodiments, the cylinder body 3 includes an inner ring plate 31, an outer ring plate 32, and two flat plates 33. The inner ring plate 31 and the outer ring plate 32 are coaxially arranged, and the axial diameter of the inner ring plate 31 is smaller than that of the outer ring plate 32. The two flat plates 33 are respectively connected to the inner ring plate 31 and the outer ring plate 32 on both sides along the length direction, and a weld 3a is formed at the connection between one of the flat plates 33 and the inner ring plate 31. The cylinder body 3 adopts a structure combining the inner ring plate 31, the outer ring plate 32, and the two flat plates 33. The two coaxially arranged cylinders with different shaft diameters, together with the plate 33, form a ring frame with strong rigidity. The inner ring plate 31 is close to the outer side of the cylinder and fits tightly with the cylinder, playing a supporting and positioning role, ensuring the coaxiality and fit of the oil tank and the cylinder. The outer ring plate 32 serves as an external support to resist external loads and enhance the overall rigidity of the oil tank. The connection of the plate 33 not only improves the structural strength of the cylinder body 3, but also disperses stress, reduces local stress concentration, and improves the deformation resistance of the oil tank.

[0041] Based on the above embodiment, an inspection port 32a is provided in the middle of the outer ring plate 32, and a transparent viewing window 32b is sealed and connected to the inspection port 32a. The inspection port 32a facilitates the entry of maintenance tools and personnel into the oil tank for inspection, cleaning, or maintenance work, without the need for large-scale disassembly and assembly of the entire oil tank, reducing maintenance time and workload, improving maintenance efficiency, and lowering maintenance costs. Through the transparent viewing window 32b, staff can directly observe the oil level, color, and presence of impurities in the tank at any time without disassembling the oil tank, promptly detect oil abnormalities, take preventive measures, avoid equipment failure due to oil problems, and improve the reliability of equipment operation. In addition, the transparent viewing window 32b is sealed and connected to the inspection port 32a, ensuring convenient observation while ensuring the airtightness of the oil tank, preventing oil leakage, and avoiding insufficient oil replenishment, environmental pollution, and potential safety hazards caused by leakage.

[0042] Based on the above embodiments, the inspection port 32a is circular; the regular size and shape of the circular inspection port 32a facilitates standardized design and production, which can improve production efficiency and reduce production costs; at the same time, the circular structure is easy to match with the installation and sealing structure, reducing assembly time and workload.

[0043] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A ring-shaped high-level oil replenishment tank for hydraulic cylinders, characterized in that, It includes a housing disposed on the top of the hydraulic cylinder, the housing being annularly wrapped around the outer surface of the hydraulic cylinder and fixedly connected to the hydraulic cylinder; The housing includes a first end plate, a second end plate, and a cylinder. The first end plate and the second end plate are arranged parallel to each other and are fixedly connected to both ends of the cylinder along its length. An oil inlet pipe is provided on the outer side of the first end plate, and the oil inlet pipe connects the inside of the housing and the inside of the oil cylinder. The axis of the cylinder is collinear with the axis of the oil cylinder, and the inner side of the cylinder matches the outer side of the oil cylinder. The cylinder is a bent structure made of a single plate, with one or two welds formed by connecting the ends.

2. The annular high-level oil replenishment tank for hydraulic cylinders according to claim 1, characterized in that, The cross-section of the box along the axial direction is a closed ring.

3. The annular high-level oil replenishment tank for hydraulic cylinders according to claim 1, characterized in that, The cross-section of the box along the axial direction is a semi-circular shape with an opening on one side.

4. The annular high-level oil replenishment tank for hydraulic cylinders according to claim 2 or 3, characterized in that, The first end plate is located on the side where the cylinder end face is located, and has a first flange hole and a second flange hole. An air filter is installed at the first flange hole, and an internal oil pipe is installed at the second flange hole. Both the air filter and the internal oil pipe are located on the side of the first end plate facing the cylinder body.

5. The annular high-level oil replenishment tank for hydraulic cylinders according to claim 4, characterized in that, The oil inlet pipe is connected to the internal oil pipe through the second flange hole.

6. The annular high-level oil replenishment tank for hydraulic cylinders according to claim 5, characterized in that, An oil inlet control valve is provided between the oil inlet pipeline and the second flange hole, and the oil inlet control valve is provided on the outside of the first end plate through a bypass pipeline.

7. The annular high-level oil replenishment tank for hydraulic cylinders according to claim 2 or 3, characterized in that, The second end plate is provided with an oil drain port, and an oil outlet valve is provided at the oil drain port. The oil outlet valve is mounted on the outside of the second end plate.

8. The annular high-level oil replenishment tank for hydraulic cylinders according to claim 3, characterized in that, The cylinder body includes an inner ring plate, an outer ring plate, and two flat plates. The inner ring plate and the outer ring plate are coaxially arranged, and the axial diameter of the inner ring plate is smaller than that of the outer ring plate. The two flat plates are respectively connected to the inner ring plate and the outer ring plate on both sides along the length direction, and the weld is formed at the junction of one of the flat plates and the inner ring plate.

9. The annular high-level oil replenishment tank for hydraulic cylinders according to claim 8, characterized in that, An inspection port is provided in the middle of the outer ring plate, and a transparent viewing window is sealed and connected to the inspection port.

10. The annular high-level oil replenishment tank for hydraulic cylinders according to claim 9, characterized in that, The inspection port is circular.

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