Anti-seismic hydraulic oil cylinder

Abstract

The utility model discloses an anti-seismic hydraulic oil cylinder, which relates to the technical field of anti-seismic of hydraulic oil cylinders, and comprises a cylinder body, a hydraulic column is slidably connected in the cylinder body, avoiding grooves are formed in the outer wall of the cylinder body in a circumferential array, an anti-seismic mechanism is arranged on the outer side of the cylinder body, and the anti-seismic mechanism comprises an anti-seismic component and a mounting component. The shock-resistant assembly and the mounting assembly are used in cooperation, the shock-resistant assembly comprises fixing plates, the fixing plates are symmetrically and fixedly connected to the outer side of the cylinder body, and sliding columns are slidably connected to the interiors of the two fixing plates in a circumferential array mode. According to the anti-seismic hydraulic oil cylinder, kinetic energy of the hydraulic column is converted into elastic potential energy through the arranged anti-seismic mechanism and multi-stage buffering, vibration stress is effectively dispersed, and therefore the long-term structural integrity of the cylinder body and the hydraulic column is protected, the service life of the hydraulic oil cylinder is prolonged, meanwhile, the stroke of the hydraulic oil cylinder is not affected, and the service life of the hydraulic oil cylinder is prolonged. And maintenance is convenient, the structure is simple, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder anti-vibration technology, and in particular to an anti-vibration hydraulic cylinder. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or oscillating motion). The hydraulic cylinder relies on the injection and outflow of oil to realize the movement of the piston. The piston moves at high speed under the push of hydraulic oil, so collision with the end of the cylinder is inevitable. However, some existing hydraulic cylinders are not equipped with anti-vibration devices, and some anti-vibration devices are ineffective.

[0003] A search revealed an anti-vibration hydraulic cylinder (authorization announcement number: CN 220396160 U), which "includes a cylinder body, an internal piston, and an internal rubber plate. Two sets of connecting bolts are fixedly installed on one side of the rubber plate. Connecting rods are movably connected to the interior of each of the two sets of connecting bolts. Connecting seats are movably connected to the other side of each of the two sets of connecting rods. Connecting rings are fixedly installed on one side of each of the two sets of connecting seats. This invention, by setting two sets of connecting rings, provides good buffering for the movement of the two sets of connecting seats due to the close contact between the inner walls of the two sets of connecting rings and the outer walls of the fixed rods, indirectly buffering the leftward movement of the rubber plate and piston. Furthermore, the inclusion of a No. 3 spring buffers the movement of the two sets of connecting rings towards the center, indirectly buffering the leftward movement of the rubber plate and piston."

[0004] Based on the aforementioned technologies, the applicant believes that the above technologies place the shock-resistant buffer mechanism inside the cylinder, which affects the cylinder's stroke and makes it inconvenient to replace and repair it in a timely manner after the shock-resistant mechanism is damaged. In response to the above problems, we have introduced a shock-resistant hydraulic cylinder. Utility Model Content

[0005] This utility model discloses an anti-vibration hydraulic cylinder, which aims to solve the technical problem that placing the anti-vibration buffer mechanism inside the cylinder affects the cylinder's stroke, and makes it inconvenient to replace and repair it in a timely manner after the anti-vibration mechanism is damaged.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An anti-vibration hydraulic cylinder includes a cylinder body, a hydraulic column slidably connected inside the cylinder body, and clearance grooves arranged in a circular array on the outer wall of the cylinder body. An anti-vibration mechanism is provided on the outer side of the cylinder body. The anti-vibration mechanism includes an anti-vibration component and a mounting component, which cooperate with each other. The anti-vibration component includes a fixing plate, which is symmetrically fixedly connected to the outer side of the cylinder body. Sliding columns are slidably connected in a circular array inside the two fixing plates. A limit plate is fixedly connected to the outer side of the sliding column. A buffer spring is sleeved on the outer side of the sliding column. A blocking plate is fixedly connected to one end of the sliding column. The hydraulic column extends to the outer side of the cylinder body and is fixedly connected to a connecting plate. The connecting plate is fixedly connected to the sliding column.

[0008] Through the designed anti-vibration mechanism, the multi-stage buffer converts the kinetic energy of the hydraulic column into elastic potential energy, effectively dispersing vibration stress, thereby protecting the long-term structural integrity of the cylinder and hydraulic column, extending the service life of the hydraulic cylinder, and at the same time not affecting the stroke of the hydraulic cylinder. It is easy to maintain, has a simple structure, and is highly practical.

[0009] In a preferred embodiment, the mounting assembly includes a base fixedly connected to the side of the cylinder away from the adapter ring, and mounting brackets symmetrically fixedly connected to the outer side of the base, with mounting holes provided inside both mounting brackets.

[0010] The base and mounting bracket in the mounting assembly are connected symmetrically and rigidly, which improves the overall installation stability of the hydraulic cylinder and reduces vibration transmission to external equipment. The mounting holes facilitate quick fixing and disassembly, adapting to different working conditions.

[0011] In a preferred embodiment, a buffer plate is provided on the outer side of the cylinder body and between the fixed plate and the connecting plate. The buffer plate is fixedly connected to the cylinder body, and a rubber pad for cushioning is fixedly connected to the side of the buffer plate near the connecting plate.

[0012] The buffer plate and its rubber pad provide secondary cushioning when the hydraulic column approaches its limit position, further absorbing residual impact force, reducing noise, preventing direct collision of metal parts, and extending the service life of the hydraulic cylinder.

[0013] In a preferred embodiment, a support bracket is fixedly connected to the bottom of the cylinder, and a silicone pad for shock absorption is fixedly connected to the bottom of the support bracket.

[0014] The support frame and silicone pad form a bottom shock-absorbing support, providing necessary support during the storage or transportation of the hydraulic cylinder.

[0015] In a preferred embodiment, a connecting post is fixedly connected to the other side of the connecting plate, and an adapter ring is fixedly connected to the outer side of the connecting post.

[0016] The connecting column and adapter ring enhance the connection stability between the hydraulic column and the external actuator, prevent loosening or misalignment caused by vibration, and ensure the reliability of power transmission.

[0017] In a preferred embodiment, the outer walls of both the cylinder and the hydraulic column are coated with a WC-Co wear-resistant coating.

[0018] The WC-Co wear-resistant coating on the cylinder block and hydraulic column surfaces improves wear resistance, reduces metal friction loss under vibration, and extends the service life of critical components.

[0019] The anti-vibration hydraulic cylinder provided by this utility model has the following advantages:

[0020] Firstly, through the anti-vibration mechanism, the multi-stage buffer converts the kinetic energy of the hydraulic column into elastic potential energy, effectively dispersing vibration stress, thereby protecting the long-term structural integrity of the cylinder and hydraulic column, extending the service life of the hydraulic cylinder, and at the same time not affecting the stroke of the hydraulic cylinder, making maintenance more convenient, with a simple structure and strong practicality.

[0021] Secondly, the support frame and silicone pad form a bottom shock-absorbing support, providing necessary support when storing or transporting the hydraulic cylinder. The connecting column and adapter ring enhance the connection stability between the hydraulic column and the external actuator, preventing loosening or displacement of the connection due to vibration, ensuring the reliability of power transmission. The WC-Co wear-resistant coating on the cylinder body and hydraulic column surface improves wear resistance, reduces metal friction loss under vibration environment, and extends the service life of key components. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of an anti-vibration hydraulic cylinder proposed in this utility model.

[0023] Figure 2 This is a three-dimensional bottom view of an anti-vibration hydraulic cylinder proposed in this utility model.

[0024] Figure 3 This is a three-dimensional schematic diagram of the anti-vibration mechanism of an anti-vibration hydraulic cylinder proposed in this utility model.

[0025] Figure 4 This is a three-dimensional schematic diagram of the cylinder body of an anti-vibration hydraulic cylinder proposed in this utility model.

[0026] In the attached diagram: 1. Cylinder body; 2. Hydraulic column; 3. Clearance groove; 41. Fixing plate; 42. Sliding column; 43. Buffer spring; 44. Limiting plate; 45. Barrier plate; 46. Connecting plate; 47. Connecting column; 48. Adapter ring; 5. Base; 6. Mounting bracket; 7. Mounting hole; 8. Buffer plate; 9. Support bracket; 10. Silicone pad. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] The anti-vibration hydraulic cylinder disclosed in this utility model is mainly used in scenarios where hydraulic cylinders are used for vibration resistance.

[0029] Reference Figure 1 - Figure 4 An anti-vibration hydraulic cylinder includes a cylinder body 1, with a hydraulic column 2 slidably connected inside the cylinder body 1. The outer wall of the cylinder body 1 has a circular array of clearance grooves 3. An anti-vibration mechanism is provided on the outer side of the cylinder body 1. The anti-vibration mechanism includes an anti-vibration component and a mounting component, which cooperate with each other. The anti-vibration component includes a fixing plate 41, which is symmetrically fixedly connected to the outer side of the cylinder body 1. Sliding columns 42 are slidably connected in a circular array inside the two fixing plates 41. A limit plate 44 is fixedly connected to the outer side of the sliding column 42. A buffer spring 43 is sleeved on the outer side of the sliding column 42. A blocking plate 45 is fixedly connected to one end of the sliding column 42. The hydraulic column 2 extends to the outer side of the cylinder body 1 and is fixedly connected to a connecting plate 46, which is fixedly connected to the sliding column 42. The mounting component includes a base 5, which is fixedly connected to the side of the cylinder body 1 away from the adapter ring 48. Mounting brackets 6 are symmetrically fixedly connected to the outer side of the base 5, and both mounting brackets 6 have mounting holes 7 inside.

[0030] In this embodiment: when the hydraulic column 2 extends or retracts, the connecting plate 46 moves accordingly and pushes the sliding column 42 to slide inside the fixed plate 41. The buffer spring 43 is compressed and deformed to absorb the impact energy of the hydraulic column 2 contraction. The blocking plate 45 limits the maximum stroke of the sliding column 42 to prevent the hydraulic column 2 from directly impacting the cylinder 1 when it contracts. At the same time, the rubber pad of the buffer plate 8 provides secondary buffering when the hydraulic column 2 approaches its limit position, further reducing the risk of rigid collision. Through the anti-vibration mechanism, the multi-stage buffering converts the kinetic energy of the hydraulic column 2 into elastic potential energy, effectively dispersing vibration stress, thereby protecting the long-term structural integrity of the cylinder 1 and the hydraulic column 2, extending the service life of the hydraulic cylinder, and not affecting the stroke of the hydraulic cylinder. It is easy to maintain, has a simple structure, and is highly practical.

[0031] In the above technical solution, considering that placing the shock-absorbing buffer mechanism inside the hydraulic cylinder affects the cylinder's stroke, and that it is inconvenient to replace and repair it in a timely manner after the shock-absorbing mechanism is damaged, the specific operation is as follows to solve these problems:

[0032] Reference Figure 1 - Figure 4 In a preferred embodiment, a buffer plate 8 is provided on the outer side of the cylinder body 1, located between the fixed plate 41 and the connecting plate 46. The buffer plate 8 is fixedly connected to the cylinder body 1, and a rubber pad for cushioning is fixedly connected to the side of the buffer plate 8 near the connecting plate 46. A support bracket 9 is fixedly connected to the bottom of the cylinder body 1, and a silicone pad 10 for shock absorption is fixedly connected to the bottom of the support bracket 9. A connecting post 47 is fixedly connected to the other side of the connecting plate 46, and an adapter ring 48 is fixedly connected to the outer side of the connecting post 47. The outer walls of both the cylinder body 1 and the hydraulic column 2 are coated with a WC-Co wear-resistant coating.

[0033] In this embodiment: the support frame 9 and the silicone pad 10 form a bottom shock-absorbing support, providing necessary support when the hydraulic cylinder is stored or transported. The connecting column 47 and the adapter ring 48 enhance the connection stability between the hydraulic column 2 and the external actuator, preventing the connection from loosening or shifting due to vibration, and ensuring the reliability of power transmission. The WC-Co wear-resistant coating on the surface of the cylinder body 1 and the hydraulic column 2 improves wear resistance, reduces metal friction loss under vibration environment, and extends the service life of key components.

[0034] Working principle: When the hydraulic column 2 extends or retracts, the connecting plate 46 moves accordingly and pushes the sliding column 42 to slide inside the fixed plate 41. The buffer spring 43 is compressed and deformed to absorb the impact energy of the hydraulic column 2 contraction. The blocking plate 45 limits the maximum stroke of the sliding column 42 to prevent the hydraulic column 2 from directly impacting the cylinder 1 when it contracts. At the same time, the rubber pad of the buffer plate 8 provides secondary buffering when the hydraulic column 2 approaches its limit position, further reducing the risk of rigid collision. The anti-vibration mechanism converts the kinetic energy of the hydraulic column 2 into elastic potential energy through multi-stage buffering, effectively dispersing vibration stress, thereby protecting the long-term structural integrity of the cylinder 1 and the hydraulic column 2.

[0035] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A shock-resistant hydraulic cylinder, comprising a cylinder body (1), characterized in that: The cylinder (1) is internally slidably connected to a hydraulic column (2), and the outer wall of the cylinder (1) is provided with a circular array of clearance grooves (3). The outer side of the cylinder (1) is provided with an anti-vibration mechanism, which includes an anti-vibration component and an installation component, and the anti-vibration component and the installation component are used in cooperation with each other. The anti-vibration component includes a fixing plate (41), which is symmetrically fixedly connected to the outside of the cylinder (1). The two fixing plates (41) are slidably connected in a circular array inside with sliding columns (42). A limit plate (44) is fixedly connected to the outside of the sliding column (42). A buffer spring (43) is sleeved on the outside of the sliding column (42). A blocking plate (45) is fixedly connected to one end of the sliding column (42). The hydraulic column (2) extends to the outside of the cylinder (1) and is fixedly connected to a connecting plate (46). The connecting plate (46) is fixedly connected to the sliding column (42).

2. The anti-vibration hydraulic cylinder according to claim 1, characterized in that: The mounting assembly includes a base (5), which is fixedly connected to the side of the cylinder (1) away from the adapter ring (48). Mounting brackets (6) are symmetrically fixedly connected to the outer side of the base (5), and mounting holes (7) are provided inside the two mounting brackets (6).

3. The anti-vibration hydraulic cylinder according to claim 1, characterized in that: A buffer plate (8) is provided on the outside of the cylinder (1) and between the fixing plate (41) and the connecting plate (46). The buffer plate (8) is fixedly connected to the cylinder (1), and a rubber pad for buffering is fixedly connected to the side of the buffer plate (8) near the connecting plate (46).

4. The anti-vibration hydraulic cylinder according to claim 1, characterized in that: The bottom of the cylinder (1) is fixedly connected to a support frame (9), and the bottom of the support frame (9) is fixedly connected to a silicone pad (10) for shock absorption.

5. The anti-vibration hydraulic cylinder according to claim 1, characterized in that: A connecting post (47) is fixedly connected to the other side of the connecting plate (46), and an adapter ring (48) is fixedly connected to the outside of the connecting post (47).

6. The anti-vibration hydraulic cylinder according to claim 1, characterized in that: The outer walls of the cylinder (1) and hydraulic column (2) are both coated with WC-Co wear-resistant coating.

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