CN221723304U - Hydraulic buffer device with floating ring structure - Google Patents

Abstract

The utility model provides a hydraulic buffer device with a floating ring structure, which comprises a buffer outer cylinder, wherein an inner cylinder is fixedly arranged in the buffer outer cylinder, a piston rod is slidably arranged in the inner cylinder, and a check ring is fixedly sleeved on the piston rod. The utility model provides a hydraulic buffer device with a floating ring structure, which is characterized in that a retaining ring, a floating ring, a limiting seat, a sleeve and a slotted valve plate are arranged, the floating ring starts to act when entering the sleeve, oil flows through gaps between the floating ring and the sleeve and between the sleeve and the retaining ring at the beginning, when the floating ring enters the middle part of the sleeve, the floating ring is deformed and expands outwards to contact the sleeve along with the gradual increase of the speed of a piston rod, an oil way is closed, the oil flows only through the gaps between the floating ring and the retaining ring to generate certain damping force, the whole structure cooperates with the sleeve to generate hydraulic buffer effect, and when the shock absorber stretches and limits, additional damping force is generated, the impact is reduced, abnormal sound is improved, and the vehicle operability is improved.

Description

Hydraulic buffer device with floating ring structure

Technical Field

The utility model relates to the technical field of hydraulic buffer devices, in particular to a hydraulic buffer device with a floating ring structure.

Background

The hydraulic buffer buffers and decelerates an object acting on the hydraulic buffer to stop by means of hydraulic damping, so that the hydraulic buffer plays a certain protection role. The shock absorber is applicable to mechanical equipment such as hoisting transportation, elevators, metallurgy, port machinery, railway vehicles and the like, and has the function of preventing a safety buffer device which is damaged by a mechanism due to hard collision in the working process, and an impact abnormal sound is easily generated when a buffer gasket with a stretching and limiting common structure of a shock absorber is limited at present, so that effective buffer vibration cannot be provided.

Disclosure of utility model

Based on the technical problems in the background art, the utility model provides a hydraulic buffer device with a floating ring structure.

The utility model provides a hydraulic buffer device with a floating ring structure, which comprises a buffer outer cylinder, wherein an inner cylinder is fixedly arranged in the buffer outer cylinder, a piston rod is slidably arranged in the inner cylinder, a check ring is fixedly sleeved on the piston rod, a sleeved groove is formed in one end of the check ring, a floating ring is sleeved on the check ring and positioned in the sleeved groove, the length of the sleeved groove is larger than the thickness of the floating ring, a limit seat is arranged at one end of the check ring, provided with the sleeved groove, a sleeve is inserted into one end of the inner cylinder, the outer diameter of the sleeve is identical with the inner diameter of the inner cylinder, and the diameters of the check ring, the floating ring and the limit seat are smaller than the inner diameter of the sleeve.

Preferably, a transverse channel is formed in one side, close to the floating ring, of the limiting seat, a slotted valve plate is fixedly sleeved on the sleeved groove section of the check ring, the slotted valve plate is located on one side, far away from the limiting seat, of the floating ring, and an oil discharging channel is formed in the slotted valve plate.

Preferably, a plurality of protection blocks are installed in the transverse channel, and the protection blocks are located at side openings of the transverse channel.

Preferably, the bottom inner wall of the oil discharge channel is provided with an anti-blocking groove.

Preferably, the piston rod is sleeved with a buffer gasket, and the buffer gasket is arranged on one side of the limiting seat, which is far away from the floating ring.

Preferably, one end of the inner cylinder, which is close to the sleeve, is fixedly provided with a guide seat, a bushing is fixedly arranged in the guide seat, and the piston rod sequentially penetrates through the bushing and the guide seat.

The utility model has the following beneficial effects: through setting up retaining ring, floating ring, spacing seat, sleeve and fluting valve block, start to act on in the floating ring gets into the sleeve, the fluid flows through floating ring and sleeve, retaining ring's clearance at the beginning, after the floating ring enters into sleeve middle part, along with piston rod speed increases gradually the floating ring warp the contact sleeve that rises outward, an oil circuit is sealed, fluid only circulates through the clearance between floating ring and the retaining ring, produce certain damping force, whole structure cooperation sleeve produces hydraulic buffering effect jointly, produce extra damping force when the shock absorber is tensile spacing, reduce the impact, improve abnormal sound, promote vehicle maneuverability.

Drawings

FIG. 1 is a partial cross-sectional view of a hydraulic buffer device with floating ring structure according to the present utility model;

fig. 2 is a schematic structural diagram of a retainer ring in a hydraulic buffer device with a floating ring structure according to the present utility model;

fig. 3 is a schematic structural view of a limiting seat in a hydraulic buffer device with a floating ring structure according to the present utility model;

Fig. 4 is a schematic structural view of a slotted valve plate in a hydraulic buffer device with a floating ring structure according to the present utility model;

Fig. 5 is a cross-sectional view of a floating ring in a hydraulic buffer device with a floating ring structure according to the present utility model.

In the figure: 1. a buffer outer cylinder; 2. an inner cylinder; 3. a piston rod; 4. a retainer ring; 5. a floating ring; 6. a limit seat; 7. a sleeve; 9. a transverse channel; 10. a slotted valve plate; 11. an oil discharge channel; 12. a protective block; 13. anti-blocking grooves; 14. a buffer gasket; 15. a guide seat; 16. a bushing.

Detailed Description

Referring to fig. 1-5, the utility model provides a hydraulic buffer device with a floating ring structure, which comprises a buffer outer cylinder 1, an inner cylinder 2 is fixedly arranged in the buffer outer cylinder 1, a piston rod 3 is arranged in the inner cylinder 2 in a sliding manner, a check ring 4 is fixedly sleeved on the piston rod 3, one end of the check ring 4 is provided with a sleeved groove, the check ring 4 is sleeved with a floating ring 5, the floating ring 5 is positioned in the sleeved groove, the length of the sleeved groove is larger than the thickness of the floating ring 5, one end of the check ring 4 provided with the sleeved groove is provided with a limit seat 6, the limit seat 6 is used for limiting the floating ring 5 in the sleeved groove, when the piston rod 3 moves, the check ring 4 and the limit seat 6 are driven to move together, along with the acceleration of the movement speed of the piston rod 3, the floating ring 5 slides in the sleeved groove section of the check ring 4, when the floating ring 5 reaches the middle position of the sleeved groove, the inner ring of the floating ring 5 abuts against the inner wall of the sleeved groove, the hydraulic pressure of the inner ring of the floating ring 5 is larger than the hydraulic pressure of the outer ring of the floating ring 5, so that the floating ring 5 expands outwards, the periphery of the floating ring 5 is propped against the inner wall of the sleeve 7, the sleeve 7 is inserted into one end of the inner cylinder 2, the outer diameter of the sleeve 7 is the same as the inner diameter of the inner cylinder 2, the diameters of the retainer ring 4, the floating ring 5 and the limiting seat 6 are smaller than the inner diameter of the sleeve 7, the piston rod 3 is sleeved with a buffer gasket 14, the buffer gasket 14 is arranged on one side of the limiting seat 6 far away from the floating ring 5, the floating ring 5 starts to act in the sleeve 7, oil flows through the gaps of the floating ring 5, the sleeve 7 and the retainer ring 4 at the beginning, after the floating ring 5 enters the middle of the sleeve 7, the floating ring 5 deforms outwards along with the gradual increase of the speed of the piston rod 3 to contact the sleeve 7, one oil path is closed, the oil flows only through the gap between the floating ring 5 and the retainer ring 4, a certain damping force is generated, so that a buffering effect is achieved, a guide seat 15 is fixedly arranged at one end, close to the sleeve 7, of the inner cylinder 2, a bushing 16 is fixedly arranged in the guide seat 15, the piston rod 3 sequentially penetrates through the bushing 16 and the guide seat 15, and radial movement of the piston rod 3 in the inner cylinder 2 and the sleeve 7 is limited by the guide seat 15 and the bushing 16.

The lateral channel 9 has been seted up to the side that spacing seat 6 is close to floating ring 5, installs a plurality of protection pieces 12 in the lateral channel 9, and a plurality of protection pieces 12 all are located lateral surface opening part of lateral channel 9, and when floating ring 5 motion supported by the side of spacing seat 6, floating ring 5 supports by on the protection piece 12 for the deformation of floating ring 5 can't get into in the lateral channel 9 completely and cause lateral channel 9 to block up, ensure the flow of fluid.

The fixed cover in groove section is established to retaining ring 4 is equipped with fluting valve block 10, and fluting valve block 10 is located the one side that spacing seat 6 was kept away from to floating ring 5, has seted up oil discharge channel 11 on the fluting valve block 10, and anti-blocking slot 13 has been seted up to the bottom inner wall of oil discharge channel 11, when floating ring 5 supports on fluting valve block 10, and the deformation of floating ring 5 can get into in the oil discharge channel 11, but anti-blocking slot 13's width is less than oil discharge channel 11 for floating ring 5 is difficult to get into anti-blocking slot 13 through getting into after getting into in the oil discharge channel 11 again deformation, ensures the flow of fluid, thereby ensures the cushioning effect of buffer.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides a take hydraulic buffer of floating ring structure which characterized in that: including buffer urceolus (1), fixed mounting has inner tube (2) in buffer urceolus (1), interior slidable mounting has piston rod (3) in inner tube (2), fixed cover is equipped with retaining ring (4) on piston rod (3), the cover is established the groove has been seted up to the one end of retaining ring (4), the cover is equipped with floating ring (5) on retaining ring (4), and floating ring (5) are located the cover and establish the inslot, the length in groove is greater than the thickness of floating ring (5) is established to the cover, spacing seat (6) are installed to the one end in groove is established to retaining ring (4), sleeve (7) are equipped with in the one end interpolation of inner tube (2), the external diameter of sleeve (7) is the same with the internal diameter of inner tube (2), the diameter of retaining ring (4), floating ring (5) and spacing seat (6) all is less than the internal diameter of sleeve (7).

2. The hydraulic buffer device with a floating ring structure according to claim 1, wherein: the utility model discloses a device for controlling the oil discharge of the floating ring, including spacing seat (6), retaining ring (4), slotted valve block (10), oil discharge channel (11) have been seted up on the side that spacing seat (6) is close to floating ring (5), fixed cover is equipped with slotted valve block (10) on the cover of retaining ring (4) establishes the slot section, slotted valve block (10) are located the one side that floating ring (5) kept away from spacing seat (6).

3. The hydraulic buffer device with the floating ring structure according to claim 2, wherein: a plurality of protection blocks (12) are arranged in the transverse channel (9), and the protection blocks (12) are located at the side openings of the transverse channel (9).

4. The hydraulic buffer device with the floating ring structure according to claim 2, wherein: an anti-blocking groove (13) is formed in the inner wall of the bottom of the oil discharging channel (11).

5. The hydraulic buffer device with a floating ring structure according to claim 1, wherein: the piston rod (3) is sleeved with a buffer gasket (14), and the buffer gasket (14) is arranged on one side of the limiting seat (6) far away from the floating ring (5).

6. The hydraulic buffer device with a floating ring structure according to claim 1, wherein: one end of the inner cylinder (2) close to the sleeve (7) is fixedly provided with a guide seat (15), a bushing (16) is fixedly arranged in the guide seat (15), and the piston rod (3) sequentially penetrates through the bushing (16) and the guide seat (15).