Ship hydraulic cylinder buffering device

Abstract

The utility model relates to the technical field of ship hydraulic cylinders, in particular to a ship hydraulic cylinder buffering device. According to the technical scheme, the hydraulic cylinder comprises a hydraulic cylinder body, a base and a top seat, the base and the top seat are fixedly installed at the two ends of the hydraulic cylinder body, a piston rod is arranged at the end, close to the top seat, of the hydraulic cylinder body, and the hydraulic cylinder further comprises multiple pairs of buffering seats installed on the base and the top seat, and the buffering seats are connected with the hydraulic cylinder body through installation screws. According to the ship hydraulic cylinder, the base, the top seat, the piston rod, the buffering mechanisms, the abutting mechanism and other structures are matched, so that the multiple buffering mechanisms of the ship hydraulic cylinder are installed outside the hydraulic cylinder through screws, and only corresponding buffering seats need to be replaced according to needs in the installation mode; maintenance personnel can make contact with and overhaul the buffering device easily, the complexity of disassembling the hydraulic cylinder body is reduced, the maintenance efficiency is improved, and the downtime is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of ship hydraulic cylinders, in particular to a ship hydraulic cylinder buffer device. Background Art

[0002] A marine hydraulic cylinder is an actuator used in a ship's hydraulic system, converting hydraulic energy into mechanical motion. It drives various marine equipment, such as steering gear, cranes, hatches, and other mechanical devices. By controlling the flow of hydraulic oil, the cylinder achieves precise telescopic movement, helping the ship perform various functions during operation. Conventional marine hydraulic cylinders feature complex buffers, often integrated within the cylinder or tightly integrated with other components. This makes individual buffer replacement or repair difficult during maintenance, requiring complete replacement or extensive disassembly, making repair and replacement cumbersome. Utility Model Content

[0003] The present utility model is intended to address the problem that conventional buffer devices for marine hydraulic cylinders are very complex in design and are typically integrated into the cylinder or closely coupled with other components. This makes it difficult to replace or repair the buffer device alone during maintenance, requiring complete replacement or extensive disassembly, which makes repair and replacement work cumbersome. The utility model proposes a buffer device for marine hydraulic cylinders.

[0004] The technical solution of the present utility model is as follows: a ship hydraulic cylinder buffer device comprises a hydraulic cylinder body and a base and a top seat fixedly mounted at both ends of the hydraulic cylinder body, a piston rod is provided at one end of the hydraulic cylinder body close to the top seat, and further comprises: a plurality of pairs of buffer seats mounted on the base and the top seat, the buffer seats being connected to the hydraulic cylinder body by mounting screws, the buffer seats being provided with a buffer mechanism for reducing the impact during the initial operation of the piston rod; a U-shaped limit frame fixedly sleeved on the piston rod, the two ends of the U-shaped limit frame being provided with actuating mechanisms for abutting the buffer mechanism to activate it.

[0005] Optionally, the buffer mechanism includes a pair of buffer grooves provided on the buffer seat, the buffer grooves are internally slidably connected to a buffer support plate, the buffer grooves are internally provided with a telescopic card slot, the buffer support plate is fixedly connected to a telescopic card block sliding in the telescopic card slot, the telescopic card slot is internally fixedly connected to a buffer spring, one end of the buffer spring is fixedly connected to the telescopic card block, and the other end of the buffer spring is fixedly connected to the inner wall of the telescopic card slot.

[0006] Optionally, a pair of limiting sliding grooves are provided inside the buffer grooves, and a pair of limiting blocks sliding in the limiting sliding grooves are fixedly connected to the buffer support plate.

[0007] Optionally, the abutting mechanism includes a sliding support rod fixedly connected to the end of the U-shaped limit frame, and both ends of the sliding support rod are fixedly connected to sliding abutting rods that abut against the buffer support plate in the corresponding buffer groove.

[0008] Optionally, the approach surface of the buffer support plate is provided with a positioning groove for the end of the sliding rod to be inserted into.

[0009] Optionally, a pair of sliding slots for the U-shaped limiting frame to be inserted into are provided on the top seat.

[0010] Optionally, the ends of the sliding rods are provided with hemispherical clamping heads that are inserted into positioning grooves to serve as guides.

[0011] Optionally, a sliding slot for the U-shaped limiting frame to slide is provided in the middle of the buffer seat.

[0012] In summary, this application includes at least one of the following beneficial technical effects:

[0013] The utility model utilizes the coordination of structures such as a base, a top seat, a piston rod, a buffer mechanism and a resisting mechanism, so that multiple buffer mechanisms of a ship hydraulic cylinder are installed on the outside of the hydraulic cylinder by screws. This installation method only requires replacing the corresponding buffer seat as needed, which not only allows maintenance personnel to easily access and repair the buffer device, but also reduces the complexity of disassembling the hydraulic cylinder body, thereby improving maintenance efficiency and reducing downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural diagram of the utility model's ship hydraulic cylinder buffer device is given;

[0015] Figure 2 for Figure 1 Schematic diagram of the split structure;

[0016] Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle;

[0017] Figure 4 for Figure 3 Schematic diagram of the structure of the middle buffer seat.

[0018] Figure numerals: 1. Hydraulic cylinder body; 11. Base; 12. Top seat; 121. Sliding slot; 2. Piston rod; 21. U-shaped limit frame; 22. Sliding support rod; 23. Sliding push rod; 3. Buffer seat; 31. Buffer slot; 32. Buffer support plate; 33. Telescopic block; 34. Telescopic slot; 35. Limiting slide; 36. Limiting block; 37. Positioning groove; 38. Buffer spring; 39. Sliding bayonet; 4. Mounting screw. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention.

[0021] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, article, or apparatus. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] Example

[0026] like Figures 1 to 4 As shown, the ship hydraulic cylinder buffer device proposed by the present invention includes a hydraulic cylinder body 1 and a base 11 and a top seat 12 fixedly mounted at both ends of the hydraulic cylinder body 1. A pair of sliding slots 121 for the U-shaped limit frame 21 to be inserted into the top seat 12 are provided on the top seat 12. The hydraulic cylinder body 1 is provided with a piston rod 2 at one end close to the top seat 12. It also includes: multiple pairs of buffer seats 3 mounted on the base 11 and the top seat 12. The middle part of the buffer seat 3 is provided with a sliding slot 39 for the U-shaped limit frame 21 to slide. Each buffer seat 3 is connected to the hydraulic cylinder body 1 by an installation screw 4. The installation screw 4 can provide strong fixation to ensure the stability and safety between the components. At the same time, the screw connection facilitates quick disassembly and maintenance, reducing maintenance costs. The buffer seat 3 is provided with a buffer mechanism that reduces the impact of the piston rod 2 during the initial operation; the U-shaped limit frame 21 is fixedly sleeved on the piston rod 2, and the U-shaped limit frame 21 is tightly slidably connected to the sliding slot 121 on the top seat 12. Both ends of the U-shaped limiting frame 21 are provided with actuating mechanisms for abutting the buffer mechanism to activate it.

[0027] Furthermore, the buffer mechanism includes a pair of buffer slots 31 formed on the buffer seat 3. Each buffer slot 31 has a pair of limiting slots 35 formed within it. A pair of limiting blocks 36 are fixedly connected to the buffer support plate 32, which slide within the limiting slots 35. The buffer support plate 32 is slidably connected within the buffer slot 31. The approach surface of each buffer support plate 32 has a positioning groove 37 for the end of the sliding rod 23 to engage. Each buffer slot 31 has a telescopic slot 34 formed within it. A telescopic block 33 is fixedly connected to the buffer support plate 32, which slides within the telescopic slot 34. A buffer spring 38 is fixedly connected within the telescopic slot 34. The buffer spring 38 effectively absorbs impact forces and reduces the impact of vibration on the equipment. Furthermore, the buffer spring 38 reduces wear and fatigue of mechanical components, extending its service life. Furthermore, it improves system stability and ensures smoother operation. Finally, springs of varying stiffness can be selected according to specific needs to accommodate various operating conditions. The maximum length to which the buffer spring 38 can be extended is such that it cannot push the buffer support plate 32 out of the buffer slot 31. One end of the buffer spring 38 is fixedly connected to the telescopic block 33 , and the other end of the buffer spring 38 is fixedly connected to the inner wall of the telescopic slot 34 .

[0028] Furthermore, the abutting mechanism includes a sliding support rod 22 fixedly connected to the end of the U-shaped limit frame 21, and both ends of the sliding support rod 22 are fixedly connected to a sliding support rod 23 that abuts against the buffer support plate 32 in the corresponding buffer groove 31. The ends of the sliding support rod 23 are provided with a hemispherical clamping head that is inserted into the positioning groove 37 to serve as a guide. The function of the hemispherical clamping head is to make it easy and convenient for the end of the sliding support rod 23 to be inserted into the positioning groove 37.

[0029] In this embodiment, when it is necessary to use a ship hydraulic cylinder buffer device, such as Figure 1 As shown, after the piston rod 2 on the hydraulic cylinder body 1 is activated, it drives the U-shaped limit frame 21 to move. The U-shaped limit frame 21 then drives a pair of actuating mechanisms at its ends to move toward the base 11 or the top seat 12, so that the sliding support rod 22 drives the corresponding sliding abutment rods 23 at both ends to press into the corresponding buffer grooves 31 on the buffer seat 3. The hemispherical clamping head of the sliding abutment rod 23 then presses against the buffer support plate 32 and snaps into the positioning groove 37 on the buffer support plate 32. The elastic thrust of the buffer spring 38 then causes the telescopic clamping block 33 to slowly slide the buffer support plate 32 in the buffer groove 31. At the same time, the limit clamping block 36 on the buffer support plate 32 slides within the limit slot 35, preventing the buffer support plate 32 from slipping out of the buffer groove 31. Finally, the mounting screws 4 in the sliding bayonet 39 on the buffer seat 3 allow the buffer seat 3 to be quickly assembled and disassembled from the hydraulic cylinder body 1, making it simple and easy to operate.

[0030] The preferred embodiments of the present invention described above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A ship hydraulic cylinder buffer device, comprising a hydraulic cylinder body (1) and a base (11) and a top seat (12) fixedly mounted on both ends of the hydraulic cylinder body (1), wherein a piston rod (2) is provided at one end of the hydraulic cylinder body (1) close to the top seat (12), and characterized in that: Also includes: A plurality of pairs of buffer seats (3) are mounted on the base (11) and the top seat (12), wherein the buffer seats (3) are connected to the hydraulic cylinder body (1) via mounting screws (4), and each of the buffer seats (3) is provided with a buffer mechanism for reducing the impact of the piston rod (2) during initial operation; A U-shaped limiting frame (21) is fixedly sleeved on the piston rod (2), and both ends of the U-shaped limiting frame (21) are provided with actuating mechanisms that abut against the buffer mechanism to activate it.

2. The ship hydraulic cylinder buffer device according to claim 1, characterized in that: The buffer mechanism comprises a pair of buffer grooves (31) provided on the buffer seat (3), a buffer support plate (32) being slidably connected to the interior of the buffer groove (31), a telescopic card slot (34) being provided inside each of the buffer grooves (31), a telescopic card block (33) being fixedly connected to the buffer support plate (32) and sliding in the telescopic card slot (34), a buffer spring (38) being fixedly connected to the interior of the telescopic card slot (34), one end of the buffer spring (38) being fixedly connected to the telescopic card block (33), and the other end of the buffer spring (38) being fixedly connected to the inner wall of the telescopic card slot (34).

3. The ship hydraulic cylinder buffer device according to claim 2, characterized in that: A pair of limiting slide grooves (35) are provided inside the buffer grooves (31), and a pair of limiting blocks (36) sliding in the limiting slide grooves (35) are fixedly connected to the buffer support plate (32).

4. The ship hydraulic cylinder buffer device according to claim 2, characterized in that: The abutting mechanism comprises a sliding support rod (22) fixedly connected to the end of the U-shaped limiting frame (21), and both ends of the sliding support rod (22) are fixedly connected to sliding support rods (23) that abut against the buffer support plate (32) in the corresponding buffer groove (31).

5. The ship hydraulic cylinder buffer device according to claim 2, characterized in that: The approach surface of the buffer support plate (32) is provided with a positioning groove (37) for the end of the sliding rod (23) to be clamped.

6. The ship hydraulic cylinder buffer device according to claim 1, characterized in that: The top seat (12) is provided with a pair of sliding slots (121) for the U-shaped limiting frame (21) to be snapped into.

7. The ship hydraulic cylinder buffer device according to claim 4, characterized in that: The ends of the sliding rods (23) are each provided with a hemispherical clamping head that is inserted into the positioning groove (37) and serves as a guide.

8. The ship hydraulic cylinder buffer device according to claim 1, characterized in that: The middle of each buffer seat (3) is provided with a sliding slot (39) for the U-shaped limiting frame (21) to slide.

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