Hydraulic cylinder device with adjustable buffer structure

Abstract

The utility model relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder device with an adjustable buffer structure. According to the technical scheme, the hydraulic buffering device comprises a hydraulic cylinder assembly, the hydraulic cylinder assembly comprises a cylinder body, a first buffering assembly is arranged at the bottom of the hydraulic cylinder assembly and comprises a mounting plate located on one side of a base plate, positioning rods are arranged at the two ends of a cylinder bottom plate, and a second buffering assembly is arranged in the hydraulic cylinder assembly; the second buffering assembly comprises an adjusting mechanism and a buffering mechanism. The hydraulic cylinder assembly can be stably supported through the arrangement of the first buffering assembly, meanwhile, vibration borne by the outside of the hydraulic cylinder assembly can be buffered, and meanwhile the position of the buffering mechanism can be adjusted through the arrangement of the adjusting mechanism; therefore, the buffering mechanism can conduct internal buffering on the hydraulic cylinder assembly according to different operation requirements, the hydraulic cylinder assembly can flexibly adapt to different working scenes and load conditions, and the universality and applicability of the hydraulic cylinder assembly are improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, and in particular to a hydraulic cylinder device with an adjustable buffer structure. Background Technology

[0002] Hydraulic cylinders, as hydraulic actuators that convert hydraulic energy into mechanical energy to achieve linear reciprocating or oscillating motion, are widely used in many fields. However, with the increasing demands for equipment operating speed and efficiency in industrial production, common hydraulic cylinders often experience mechanical collisions with the cylinder head and bottom at high speeds when the piston reaches its end, generating significant impact pressure. This not only easily damages the cylinder head and bottom, reducing the service life of the hydraulic cylinder, but may also lead to equipment instability and affect the overall system performance. Furthermore, most existing buffer structures cannot be flexibly adjusted according to actual working needs. Different working scenarios and load conditions require different buffering from hydraulic cylinders, and fixed-structure buffer devices struggle to adapt to this diversity. This results in over-buffering in some cases, affecting work efficiency, and under-buffering in others, failing to effectively protect the equipment. Therefore, we propose a hydraulic cylinder device with an adjustable buffer structure. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a hydraulic cylinder device with an adjustable buffer structure.

[0004] The technical solution of this utility model: A hydraulic cylinder device with an adjustable buffer structure, comprising a hydraulic cylinder assembly, the hydraulic cylinder assembly including a cylinder body, a cylinder head provided at the top of the cylinder body, a cylinder bottom plate provided at one bottom end of the cylinder body, a base plate provided on the side of the cylinder bottom plate away from the cylinder body, a piston rod penetrating the cylinder body provided on one side of the base plate, a piston sleeved on the outer ring of the bottom end of the piston rod, a first buffer assembly provided at the bottom of the hydraulic cylinder assembly, the first buffer assembly including a mounting plate located on one side of the base plate, positioning rods provided at both ends of the cylinder bottom plate, the cylinder bottom... A compression spring is fitted around the outer ring of the positioning rod between the plate and the mounting plate. A second buffer assembly is provided inside the hydraulic cylinder assembly. The second buffer assembly includes an adjustment mechanism and a buffer mechanism. The adjustment mechanism includes a rotating sleeve. An adjustment cylinder is fitted around the outer ring of one end of the rotating sleeve located inside the cylinder body. An adjustment plate is provided at one end of the adjustment cylinder. The buffer mechanism includes a connecting plate located on one side of the adjustment plate. A baffle is fitted around the outer ring of the piston rod on one side of the connecting plate. A buffer spring is fitted between the connecting plate and the baffle around the outer ring of the piston rod. Multiple sets of guide strips are provided on the inner wall of the cylinder body.

[0005] Preferably, one side of the cylinder head is installed corresponding to one end of the cylinder body, the mounting end of the cylinder bottom plate is installed corresponding to the other end of the cylinder body, the mounting end of the base plate is installed corresponding to one side of the cylinder bottom plate, a sealing ring is provided on one side of the base plate, an annular groove is opened on one side of the cylinder bottom plate, the sealing ring is installed corresponding to the annular groove, the mounting end of the piston is installed corresponding to the outer ring of the piston rod, and the outer ring of the piston is tightly fitted to the inner wall of the cylinder body.

[0006] Preferably, one side of the mounting plate is installed corresponding to one side of the base plate, both ends of the cylinder bottom plate are provided with positioning holes, the outer ring of the positioning rod is installed corresponding to the inner wall of the positioning hole, one end of the positioning rod is installed corresponding to one side of the mounting plate, a limit block is provided on the end of the positioning rod away from the mounting plate, one end of the compression spring is installed corresponding to one side of the mounting plate, and the other end of the compression spring is installed corresponding to one side of the base plate.

[0007] Preferably, the mounting end of the rotating sleeve is installed corresponding to the inner wall of the cylinder head, the outer ring of the piston rod is installed corresponding to the inner wall of the rotating sleeve, a sealing gasket is provided on the outer ring of the rotating sleeve near the cylinder head, and an annular groove two is opened at the middle position on the cylinder head, and the sealing gasket is installed corresponding to the annular groove two.

[0008] Preferably, one end of the rotating sleeve passes through the cylinder head and is threaded on the outer ring of the cylinder body. The inner ring of the adjusting cylinder is threadedly connected to the rotating sleeve, and one side of the adjusting plate is installed corresponding to one end of the adjusting cylinder.

[0009] Preferably, the mounting end of the connecting plate is installed corresponding to the side of the adjusting plate away from the adjusting cylinder, the outer ring of the baffle is in close contact with the inner wall of the cylinder, the inner ring of the baffle is in close contact with the outer ring of the piston rod, one end of the buffer spring is installed corresponding to one side of the connecting plate, and the other end of the buffer spring is installed corresponding to one side of the baffle.

[0010] Preferably, the mounting end of the guide bar is installed corresponding to the inner wall of the cylinder, and the outer rings of the piston, adjusting plate and baffle are all provided with guide grooves, and the guide bar is installed corresponding to the guide grooves.

[0011] Compared with the prior art, the present invention has the following beneficial technical effects:

[0012] This utility model has a simple overall structure. The first buffer component provides stable support for the hydraulic cylinder assembly and buffers external vibrations. The position of the buffer component can be adjusted by the adjustment mechanism, allowing the buffer component to provide internal buffering for the hydraulic cylinder assembly according to different operational needs. This enables the hydraulic cylinder assembly to flexibly adapt to different working scenarios and load conditions, improving its versatility and applicability, ensuring its stability during operation, and extending its service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the present invention;

[0015] Figure 3 This is a schematic diagram of the hydraulic cylinder assembly in this utility model.

[0016] Reference numerals: 1. Hydraulic cylinder assembly; 11. Cylinder body; 12. Cylinder head; 13. Cylinder bottom plate; 14. Base plate; 15. Piston rod; 16. Piston; 2. First buffer assembly; 21. Mounting plate; 22. Positioning rod; 23. Compression spring; 3. Second buffer assembly; 31. Adjusting mechanism; 311. Rotating sleeve; 312. Adjusting cylinder; 313. Adjusting plate; 32. Buffering mechanism; 321. Connecting plate; 322. Baffle; 323. Buffer spring; 4. Guide bar; 5. Sealing ring; 6. Sealing gasket. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0018] like Figure 1-3As shown, the present invention proposes a hydraulic cylinder device with an adjustable buffer structure, comprising a hydraulic cylinder assembly 1, which includes a cylinder body 11. A cylinder head 12 is provided at the top of the cylinder body 11, and one side of the cylinder head 12 is installed corresponding to one end of the cylinder body 11. The cylinder head 12 is fixedly connected to the cylinder body 11. A cylinder bottom plate 13 is provided at one bottom end of the cylinder body 11, and the mounting end of the cylinder bottom plate 13 is installed corresponding to the other end of the cylinder body 11. The cylinder bottom plate 13 is fixedly connected to the other end of the cylinder body 11. A base plate 14 is provided on the side of the cylinder bottom plate 13 away from the cylinder body 11, and the mounting end of the base plate 14 is installed corresponding to one side of the cylinder bottom plate 13. The base plate 14 is fixedly connected to one side of the cylinder bottom plate 13. A sealing ring 5 is provided on one side of the base plate 14, and the mounting end of the sealing ring 5 is fixedly connected to the base plate 14. A ring groove is provided on one side of the cylinder bottom plate 13. A sealing ring 5 is installed in the corresponding ring groove and is fixedly connected to the inner wall of the ring groove. The sealing ring 5 can ensure the sealing between the base plate 14 and the cylinder bottom plate 13. A piston rod 15 is provided on one side of the base plate 14, which passes through the cylinder body 11. One end of the piston rod 15 passes through the cylinder head 12. A piston 16 is fitted on the outer ring of the bottom end of the piston rod 15. The mounting end of the piston 16 is installed in the corresponding position to the outer ring of the piston rod 15. The piston 16 is fixedly connected to the piston rod 15. The outer ring of the piston 16 is tightly fitted to the inner wall of the cylinder body 11. Oil pipe ports are provided on both the cylinder head 12 and the cylinder bottom plate 13. The oil pipe ports can allow hydraulic oil to enter or exit the cylinder body 11, thereby enabling the piston rod 15 to extend or retract through the piston 16.

[0019] A first buffer assembly 2 is provided at the bottom of the hydraulic cylinder assembly 1. The first buffer assembly 2 includes a mounting plate 21 located on one side of the base plate 14. One side of the mounting plate 21 is installed corresponding to one side of the base plate 14. The mounting plate 21 is fixedly connected to the base plate 14. A rubber pad is provided on the side of the mounting plate 21 away from the base plate 14. The rubber pad allows the hydraulic cylinder assembly 1 to better buffer vibrations through the first buffer assembly 2. Positioning rods 22 are provided at both ends of the cylinder bottom plate 13. Positioning holes are opened at both ends of the cylinder bottom plate 13. The outer ring of the positioning rod 22 is installed corresponding to the inner wall of the positioning hole. The positioning rod 22 is slidably connected to the cylinder bottom plate 13 through the positioning hole. One end of the positioning rod 22 is installed corresponding to one side of the mounting plate 21. One end of the positioning rod 22 is fixedly connected to one side of the mounting plate 21. The positioning rod 22 is located away from the mounting plate 21. A limiting block is provided at one end, and the limiting block is fixedly connected to the top of the positioning rod 22. The setting of the limiting block can limit the positioning rod 22 and prevent the positioning rod 22 from dislodging from the positioning hole due to excessive vibration. A compression spring 23 is sleeved on the outer ring of the positioning rod 22 between the cylinder bottom plate 13 and the mounting plate 21. One end of the compression spring 23 is installed corresponding to one side of the mounting plate 21 and is fixedly connected to one side of the mounting plate 21. The other end of the compression spring 23 is installed corresponding to one side of the base plate 14 and is fixedly connected to one side of the base plate 14. The first buffer component 2 can buffer the external vibration force received by the hydraulic cylinder assembly 1 in the assembly state and the working state, thereby protecting the hydraulic cylinder assembly 1 and making the hydraulic cylinder assembly 1 more stable in the working state.

[0020] A second buffer assembly 3 is provided inside the hydraulic cylinder assembly 1. The second buffer assembly 3 includes an adjusting mechanism 31 and a buffering mechanism 32. The adjusting mechanism 31 includes a rotating sleeve 311. The mounting end of the rotating sleeve 311 is installed corresponding to the inner wall of the cylinder head 12. The rotating sleeve 311 is rotatably connected to the cylinder head 12. The outer ring of the piston rod 15 is installed corresponding to the inner wall of the rotating sleeve 311. The outer ring of the piston rod 15 is tightly fitted to the inner wall of the rotating sleeve 311. A sealing gasket 6 is provided on the outer ring of the rotating sleeve 311 near the cylinder head 12. The mounting end of the sealing gasket 6 is fixedly connected to the rotating sleeve 311. An annular groove II is opened at the middle position on the cylinder head 12. The sealing gasket 6 is installed corresponding to the annular groove II. The sealing gasket 6 is tightly fitted to the inner wall of the annular groove II. The sealing gasket 6 is rotatably connected to the annular groove II. The setting of the sealing gasket 6 can... The rotating sleeve 311 is positioned and assembled. The sealing gasket 6 and the second annular groove ensure that the cylinder body 11 is sealed when assembled. An adjusting cylinder 312 is fitted around the outer ring of one end of the rotating sleeve 311 inside the cylinder body 11. One end of the rotating sleeve 311 passes through the cylinder head 12 and has a threaded outer ring inside the cylinder body 11. The inner ring of the adjusting cylinder 312 is threadedly connected to the rotating sleeve 311. When the rotating sleeve 311 rotates, the threaded connection between the adjusting cylinder 311 and the rotating sleeve 311 drives the adjusting cylinder 312 to move and adjust. An adjusting plate 313 is provided at one end of the adjusting cylinder 312. One side of the adjusting plate 313 is installed correspondingly to one end of the adjusting cylinder 312, and the mounting end of the adjusting plate 313 is fixedly connected to the adjusting cylinder 312. When the adjusting cylinder 312 moves... The adjustment plate 313 can be adjusted in position. The buffer mechanism 32 includes a connecting plate 321 disposed on one side of the adjustment plate 313. The mounting end of the connecting plate 321 is installed corresponding to the side of the adjustment plate 313 away from the adjustment cylinder 312. The connecting plate 321 is fixedly connected to the adjustment plate 313. A baffle 322 is sleeved on one side of the connecting plate 321 on the outer ring of the piston rod 15. The outer ring of the baffle 322 fits against the inner wall of the cylinder 11 and is slidably connected to the cylinder 11. The inner ring of the baffle 322 fits tightly against the outer ring of the piston rod 15 and is slidably connected to the piston rod 15. A buffer spring 323 is sleeved between the connecting plate 321 and the baffle 322 on the outer ring of the piston rod 15. One end of the buffer spring 323 is connected to one end of the connecting plate 321. The buffer spring 323 is installed on one side and fixedly connected to one side of the connecting plate 321. The other end of the buffer spring 323 is installed on one side of the baffle 322. The buffer spring 323 is fixedly connected to one side of the baffle 322. The setting of 33 can buffer the movement of the piston 16. The position of the buffer mechanism 32 can be adjusted by the setting of the adjustment mechanism 31 in the second buffer assembly 3. Thus, the buffer mechanism 32 can internally buffer the hydraulic cylinder assembly 1 according to different operation requirements, so that the hydraulic cylinder assembly 1 can flexibly adapt to different working scenarios and load conditions, improve the versatility and applicability of the hydraulic cylinder assembly 1, and at the same time ensure the stability of the hydraulic cylinder assembly 1 during operation and extend the service life of the hydraulic cylinder assembly 1.

[0021] The inner wall of the cylinder body 11 is provided with multiple sets of guide bars 4. The mounting end of the guide bar 4 is installed corresponding to the inner wall of the cylinder body 11. The guide bar 4 is fixedly connected to the cylinder body 11. The outer ring of the piston 16, the adjusting plate 313 and the baffle 322 are all provided with guide grooves. The guide bar 4 is installed corresponding to the guide grooves and is slidably connected to the guide grooves. The setting of the guide bar 4 can limit and guide the movement of the piston 16, the adjusting plate 313 and the baffle 322, thereby ensuring the stability of the piston 16 and the second buffer assembly 3 during operation.

[0022] In this embodiment, the operator allows hydraulic oil to enter and exit the cylinder body 11 through the oil pipe ports on the cylinder head 12 and cylinder bottom plate 13, respectively, thereby enabling the piston rod 15 to move forward via the piston 16. When the hydraulic cylinder assembly 1 is in the assembly or operating state, the first buffer assembly 2 buffers the vibrations received by the hydraulic cylinder assembly 1 from the outside. When the hydraulic cylinder assembly 1 is subjected to vibration, the vibration is buffered by the rubber pad at the bottom of the mounting plate 21. At the same time, the positioning rod 22 guides and limits the mounting plate 21 through the positioning hole. At this time, the compression spring 23 absorbs the vibration force, thereby... The hydraulic cylinder assembly 1 is externally buffered and protected. Then, the operator rotates the rotating sleeve 311 according to the operation requirements. The rotation of the rotating sleeve 311, in cooperation with the guide bar 4, causes the adjusting cylinder 312 to move along the cylinder body 11, thereby causing the adjusting plate 313 to move accordingly. At this time, the adjusting plate 313 drives the connecting plate 321 to move accordingly. The connecting plate 321, through the buffer spring 323, drives the buffer spring 323 to move accordingly, thereby completing the distance adjustment between the buffer mechanism 32 and the piston 16, so that the buffer mechanism 32 can meet the operation requirements of the piston 16.

[0023] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.

Claims

1. A hydraulic cylinder device with adjustable damping structure, comprising a hydraulic cylinder assembly (1), characterized in that: The hydraulic cylinder assembly (1) comprises a cylinder body (11), the top end of the cylinder body (11) is provided with a cylinder head (12), the bottom end of the cylinder body (11) is provided with a cylinder bottom plate (13), the side of the cylinder bottom plate (13) away from the cylinder body (11) is provided with a base plate (14), the side of the base plate (14) is provided with a piston rod (15) penetrating through the cylinder body (11), the outer circle of the bottom end of the piston rod (15) is sleeved with a piston (16), the bottom of the hydraulic cylinder assembly (1) is provided with a first buffer assembly (2), the first buffer assembly (2) comprises a mounting plate (21) located on the side of the base plate (14), the both ends of the cylinder bottom plate (13) are provided with positioning rods (22), the outer circle of the positioning rods (22) between the cylinder bottom plate (13) and the mounting plate (21) is sleeved with compression springs (23), the hydraulic cylinder assembly (1) is provided with a second buffer assembly (3), the second buffer assembly (3) comprises an adjusting mechanism (31) and a buffer mechanism (32), the adjusting mechanism (31) comprises a rotating sleeve (311), the outer circle of one end of the rotating sleeve (311) located in the cylinder body (11) is sleeved with an adjusting cylinder (312), one end of the adjusting cylinder (312) is provided with an adjusting plate (313), the buffer mechanism (32) comprises a connecting plate (321) provided on the side of the adjusting plate (313), the outer circle of the side of the connecting plate (321) is sleeved with a baffle (322), the outer circle of the connecting plate (321) and the baffle (322) between the piston rod (15) is sleeved with a buffer spring (323), the inner wall of the cylinder body (11) is provided with a plurality of guide strips (4).

2. The hydraulic cylinder apparatus with adjustable cushioning structure according to claim 1, wherein, The side of the cylinder head (12) is correspondingly installed with one end of the cylinder body (11), the mounting end of the cylinder bottom plate (13) is correspondingly installed with the other end of the cylinder body (11), the mounting end of the base plate (14) is correspondingly installed with the side of the cylinder bottom plate (13), the side of the base plate (14) is provided with a sealing ring (5), the side of the cylinder bottom plate (13) is provided with a ring groove one, the sealing ring (5) is correspondingly installed with the ring groove one, the mounting end of the piston (16) is correspondingly installed with the outer circle of the piston rod (15), the outer circle of the piston (16) is closely combined with the inner wall of the cylinder body (11).

3. The hydraulic cylinder apparatus with adjustable cushioning structure of claim 1, wherein, The side of the mounting plate (21) is correspondingly installed with the side of the base plate (14), the both ends of the cylinder bottom plate (13) are provided with positioning holes, the outer circle of the positioning rod (22) is correspondingly installed with the inner wall of the positioning hole, one end of the positioning rod (22) is correspondingly installed with the side of the mounting plate (21), the end of the positioning rod (22) away from the mounting plate (21) is provided with a limiting block, one end of the compression spring (23) is correspondingly installed with the side of the mounting plate (21), the other end of the compression spring (23) is correspondingly installed with the side of the base plate (14).

4. The hydraulic cylinder apparatus with adjustable cushioning structure of claim 1, wherein, The mounting end of the rotating sleeve (311) is mounted in correspondence with the inner wall of the cylinder head (12), the outer ring of the piston rod (15) is mounted in correspondence with the inner wall of the rotating sleeve (311), the outer ring of the rotating sleeve (311) is provided with a sealing gasket (6) near the position close to the cylinder head (12), and the cylinder head (12) is provided with a ring groove two at the middle position.

5. The hydraulic cylinder apparatus with adjustable cushioning structure of claim 1, wherein, One end of the rotating sleeve (311) is provided in a threaded manner through the cylinder head (12) at the outer ring in the cylinder body (11), the inner ring of the adjusting cylinder (312) is in threaded connection with the rotating sleeve (311), and one side of the adjusting plate (313) is mounted in correspondence with one end of the adjusting cylinder (312).

6. The hydraulic cylinder apparatus with adjustable cushioning structure of claim 1, wherein, The mounting end of the connecting plate (321) is mounted in correspondence with the adjusting plate (313) away from one side of the adjusting cylinder (312), the outer ring of the baffle (322) is in mutual adhesion with the inner wall of the cylinder body (11), the inner ring of the baffle (322) is in close adhesion with the outer ring of the piston rod (15), one end of the buffer spring (323) is mounted in correspondence with one side of the connecting plate (321), and the other end of the buffer spring (323) is mounted in correspondence with one side of the baffle (322).

7. The hydraulic cylinder apparatus with adjustable cushioning structure of claim 1, wherein, The mounting end of the guide strip (4) is mounted in correspondence with the inner wall of the cylinder body (11), the outer rings of the piston (16), the adjusting plate (313) and the baffle (322) are all provided with guide grooves, and the guide strip (4) is mounted in correspondence with the guide grooves.

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