CN216009097U

CN216009097U - Hydraulic cylinder with built-in spring compression buffer structure

Info

Publication number: CN216009097U
Application number: CN202122010227.2U
Authority: CN
Inventors: 谌上
Original assignee: Wuhan Hengli Hydraulic Pneumatic Co ltd
Current assignee: Wuhan Hengli Hydraulic Pneumatic Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-03-11
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses a hydraulic oil cylinder with a built-in spring compression buffer structure, which comprises an oil cylinder barrel, wherein a piston rod is arranged on one side of the oil cylinder barrel, and a dustproof ring is sleeved outside the piston rod; the buffer ring is arranged on the outer side of the tail end of the piston rod, and one end of the buffer ring is connected with a piston ring; the rubber telescopic column is arranged on the left side of the piston ring, and the left side of the rubber telescopic column is connected with a rubber support column; and the buffer spring is arranged on the outer sides of the rubber telescopic column and the rubber support column. This hydraulic cylinder of built-in spring compression buffer structure compares with current device, can produce the friction through the inner wall of buffer ring with the oil cylinder section of thick bamboo to can play certain cushioning effect to the motion of piston rod, buffer spring can contact rather than in advance when the piston rod contracts, absorbs the power that its return stroke produced, thereby can avoid its direct end with the oil cylinder section of thick bamboo inner wall to strike, plays the effect of buffering protection.

Description

Hydraulic cylinder with built-in spring compression buffer structure

Technical Field

The utility model relates to the technical field of hydraulic oil cylinders, in particular to a hydraulic oil cylinder with a built-in spring compression buffer structure.

Background

The hydraulic oil cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and makes linear reciprocating motion; the hydraulic oil cylinder has the advantages of simple structure, reliable work, no transmission clearance, stable movement and the like.

The existing hydraulic oil cylinder does not have a buffer structure when in use, so that the hydraulic oil cylinder is easy to violently impact the wall of the oil cylinder in the expansion process, the hydraulic oil cylinder is damaged, and the service life of the hydraulic oil cylinder is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hydraulic oil cylinder with a built-in spring compression buffer structure, which aims to solve the problem that the service life of the hydraulic oil cylinder is influenced because the existing hydraulic oil cylinder does not have the buffer structure when in use, so that the hydraulic oil cylinder is easy to violently impact the wall of the hydraulic oil cylinder in the expansion and contraction process.

In order to achieve the purpose, the utility model provides the following technical scheme: a hydraulic ram for an innerspring compression cushioning structure, comprising:

the oil cylinder is characterized in that a piston rod is arranged on one side of the oil cylinder, and a dustproof ring is sleeved outside the piston rod;

the buffer ring is arranged on the outer side of the tail end of the piston rod, and one end of the buffer ring is connected with a piston ring;

the rubber telescopic column is arranged on the left side of the piston ring, and the left side of the rubber telescopic column is connected with a rubber support column;

the buffer spring is arranged on the outer sides of the rubber telescopic column and the rubber supporting column;

the oiling mouth, it is seted up the both ends of oil cylinder section of thick bamboo one side, one side of oiling mouth is equipped with the sealing washer, and the sealed lid is installed to one side of sealing washer.

Preferably, a semi-surrounding structure is formed between the oil cylinder barrel and the piston rod, and the outer diameter of the piston rod is matched with the inner diameter of the dust ring.

Preferably, the piston rod penetrates through the inside of the buffer ring, and the outer diameter of the buffer ring is matched with the inner diameter of the oil cylinder barrel.

Preferably, constitute tensile structure between rubber support column and the flexible post of rubber, and rubber support column, the flexible post of rubber and the central point of piston rod longitudinal section are in same water flat line to constitute half surrounding structure between flexible post of rubber and the rubber support column respectively and buffer spring.

Preferably, the oil filling port is further provided with:

a lubrication passage provided on the other side of the oil filling port;

and the limiting plate is arranged in the oil filler, and a filter screen assembly is arranged above the limiting plate.

Preferably, the structure of the filter screen assembly is a hollowed-out net structure, and the filter screen assembly is detachably connected with the oil injection port.

Preferably, the oil cylinder barrel is further provided with:

and the annular plates are arranged on two sides of the inner wall of the oil cylinder barrel, and bristles are arranged on the inner sides of the annular plates.

Compared with the prior art, the utility model provides a hydraulic oil cylinder with a built-in spring compression buffer structure, which has the following beneficial effects: this hydraulic cylinder of built-in spring compression buffer structure can produce the friction through the inner wall of buffer ring with the oil cylinder section of thick bamboo to can slow down the intensity of piston rod motion, play certain cushioning effect to the motion of piston rod, buffer spring can contact rather than in advance when the piston rod contracts, absorb the power that its return stroke produced, thereby can avoid its direct end with the oil cylinder section of thick bamboo inner wall to strike, play the effect of buffering protection.

1. According to the utility model, the oil cylinder barrel can be matched with the piston rod to work so as to enable the oil cylinder barrel to do telescopic motion, and the dust ring can seal the joint of the piston rod and the oil cylinder barrel, so that the double effects of seepage prevention and dust prevention are achieved;

2. the buffer ring can rub the inner wall of the oil cylinder barrel, so that the movement strength of the piston rod can be reduced, a certain buffer effect can be realized on the movement of the piston rod, the buffer spring can be in contact with the piston rod in advance when the piston rod contracts, and the force generated by the return stroke of the buffer spring can be absorbed, so that the piston rod can be prevented from directly impacting the tail end of the inner wall of the oil cylinder barrel, and a buffer protection effect can be realized;

3. the lubricating oil cylinder is convenient to inject lubricating oil into the oil cylinder barrel through the oil injection port and the lubricating channel, the filter screen assembly can filter the injected lubricating oil to remove impurities in the lubricating oil, the impurities are prevented from affecting subsequent use of the oil cylinder, the limiting plate can limit the filter screen assembly and is convenient to detach, and the lubricating oil can be uniformly coated on the outer wall of the piston rod in the telescopic process of the piston rod through the bristles, so that the piston rod can be uniformly coated with the lubricating oil, and a better lubricating effect is achieved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of the piston rod of the present invention in an extended configuration;

FIG. 4 is a schematic structural view of the oil cylinder barrel of the present invention;

FIG. 5 is a schematic view of the construction of the annular plate of the present invention.

In the figure: 1. an oil cylinder barrel; 2. a piston rod; 3. a dust ring; 4. a sealing cover; 5. a piston ring; 6. a buffer ring; 7. a buffer spring; 8. a rubber support column; 9. a rubber telescopic column; 10. an annular plate; 11. a lubrication channel; 12. an oil filling port; 13. a limiting plate; 14. a seal ring; 15. a screen assembly; 16. and (3) brush hairs.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a hydraulic cylinder with an internal spring compression buffer structure includes: the oil cylinder barrel 1 is provided with a piston rod 2 at one side of the oil cylinder barrel 1, and a dustproof ring 3 is sleeved outside the piston rod 2; a semi-surrounding structure is formed between the oil cylinder barrel 1 and the piston rod 2, and the outer diameter of the piston rod 2 is matched with the inner diameter of the dust ring 3; the oil cylinder barrel 1 can work in a matched mode with the piston rod 2 to enable the oil cylinder barrel to do telescopic motion, and the dust ring 3 can seal the joint of the piston rod 2 and the oil cylinder barrel 1 to achieve the double effects of seepage prevention and dust prevention; a buffer ring 6 which is installed outside the end of the piston rod 2, and one end of the buffer ring 6 is connected with a piston ring 5; the piston rod 2 penetrates through the inside of the buffer ring 6, and the outer diameter of the buffer ring 6 is matched with the inner diameter of the oil cylinder barrel 1; the buffer ring 6 can generate friction with the inner wall of the oil cylinder barrel 1, so that the movement strength of the piston rod 2 can be reduced, and a certain buffer effect on the movement of the piston rod 2 is achieved; the rubber telescopic column 9 is arranged on the left side of the piston ring 5, and the left side of the rubber telescopic column 9 is connected with a rubber support column 8; the buffer spring 7 is arranged on the outer sides of the rubber telescopic column 9 and the rubber support column 8; annular plates 10 installed at both sides of the inner wall of the oil cylinder barrel 1; a stretching structure is formed between the rubber supporting column 8 and the rubber telescopic column 9, the rubber supporting column 8, the rubber telescopic column 9 and the central point of the longitudinal section of the piston rod 2 are positioned on the same horizontal line, and a semi-surrounding structure is formed between the rubber telescopic column 9 and the rubber supporting column 8 and the buffer spring 7 respectively; buffer spring 7 can contact with it in advance when piston rod 2 contracts, absorb the power that its return stroke produced, thereby can avoid its direct end with 1 inner wall of oil cylinder section to strike, play the effect of buffering protection, can stretch out and draw back in step along with buffer spring 7's flexible between rubber support post 8 and the flexible post 9 of rubber, thereby can play the supporting effect to buffer spring 7, it does not have buffer structure to have solved current hydraulic cylinder when using, thereby easily make hydraulic cylinder acutely strike the oil cylinder wall at flexible in-process, cause it to receive the damage, influence life's problem.

Referring to fig. 1, 4 and 5, a hydraulic cylinder with an internal spring compression buffer structure includes: the oil injection port 12 is formed at two ends of one side of the oil cylinder barrel 1, a sealing ring 14 is arranged at one side of the oil injection port 12, and a sealing cover 4 is arranged at one side of the sealing ring 14; a lubrication passage 11 provided on the other side of the oil filler port 12; a limiting plate 13 arranged in the oil filling port 12, and a filter screen assembly 15 is arranged above the limiting plate 13; the structure of the filter screen component 15 is a hollow net structure, and the filter screen component 15 is detachably connected with the oil injection port 12; lubricating oil can be conveniently injected into the oil cylinder barrel 1 through the oil injection port 12 and the lubricating channel 11, the filter screen assembly 15 can filter the injected lubricating oil to remove impurities in the lubricating oil, the impurities are prevented from influencing the subsequent use of the oil cylinder, and the limiting plate 13 can limit the filter screen assembly 15 and is convenient to disassemble; bristles 16 are arranged on the inner side of the annular plate 10; the bristles 16 can evenly coat lubricating oil on the outer wall of the piston rod 2 in the telescopic process of the piston rod 2, so that the piston rod 2 can be evenly coated with the lubricating oil at all positions, and a better lubricating effect is achieved.

The working principle is as follows: when the hydraulic oil cylinder with the built-in spring compression buffer structure is used, firstly, the connection part of the piston rod 2 and the oil cylinder barrel 1 can be sealed through the dust ring 3, so that the dual effects of seepage prevention and dust prevention are achieved, when the piston rod 2 works to stretch, friction force is generated between the buffer ring 6 and the inner wall of the oil cylinder barrel 1, the movement strength of the piston rod 2 can be reduced, and a certain buffer effect on the movement of the piston rod 2 is achieved; secondly, when the piston rod 2 contracts in a return stroke, the piston ring 5 is firstly contacted with the buffer spring 7, and the buffer spring 7, the rubber support column 8 and the rubber telescopic column 9 want to contract mutually at the moment, so that the moving force of the piston rod 2 can be absorbed, the piston ring 5 can be prevented from directly impacting the tail end of the inner wall of the oil cylinder barrel 1, the effect of buffer protection is achieved, the hydraulic oil cylinder is prevented from not having a buffer structure when in use, and the hydraulic oil cylinder is easily violently impacted on the wall of the oil cylinder in the telescopic process to be damaged, so that the service life is influenced; then when the piston rod 2 needs to be lubricated, the sealing cover 4 is opened, the filter screen assembly 15 is placed on the limiting plate 13 in the oil injection port 12, lubricating oil is injected into the oil cylinder barrel 1 through the lubricating channel 11, and the filter screen assembly 15 can filter the injected lubricating oil at the moment, so that impurities in the lubricating oil are removed, and the influence of the impurities on the subsequent use of the oil cylinder is prevented; finally, lubricating oil flows to the bristles 16 on the inner side of the annular plate 10 through the lubricating channel 11, and in the extension process of the piston rod 2, the bristles 16 are in contact with the outer wall of the piston rod, so that the lubricating oil can be uniformly coated on the outer wall of the piston rod, a better lubricating effect is achieved, and the working principle of the hydraulic oil cylinder with the built-in spring compression buffer structure is the working principle.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A hydraulic cylinder with an internal spring compression buffer structure is characterized by comprising:

the oil cylinder is characterized by comprising an oil cylinder barrel (1), wherein a piston rod (2) is arranged on one side of the oil cylinder barrel (1), and a dustproof ring (3) is sleeved outside the piston rod (2);

a buffer ring (6) which is arranged outside the tail end of the piston rod (2), wherein one end of the buffer ring (6) is connected with a piston ring (5);

the rubber telescopic column (9) is arranged on the left side of the piston ring (5), and a rubber support column (8) is connected to the left side of the rubber telescopic column (9);

the buffer spring (7) is arranged on the outer sides of the rubber telescopic column (9) and the rubber supporting column (8);

the oil filling device comprises an oil filling port (12) which is arranged at two ends of one side of the oil cylinder barrel (1), a sealing ring (14) is arranged at one side of the oil filling port (12), and a sealing cover (4) is arranged at one side of the sealing ring (14).

2. The hydraulic oil cylinder with the built-in spring compression buffering structure as claimed in claim 1, characterized in that a semi-surrounding structure is formed between the oil cylinder barrel (1) and the piston rod (2), and the outer diameter of the piston rod (2) is matched with the inner diameter of the dust ring (3).

3. The hydraulic oil cylinder with the built-in spring compression buffering structure as claimed in claim 1, wherein the piston rod (2) penetrates through the inside of the buffering ring (6), and the outer diameter of the buffering ring (6) is matched with the inner diameter of the oil cylinder barrel (1).

4. The hydraulic oil cylinder with the built-in spring compression buffering structure as claimed in claim 1, wherein a stretching structure is formed between the rubber supporting column (8) and the rubber telescopic column (9), the rubber supporting column (8), the rubber telescopic column (9) and the central point of the longitudinal section of the piston rod (2) are on the same horizontal line, and a semi-surrounding structure is formed between the rubber telescopic column (9) and the rubber supporting column (8) and the buffering spring (7).

5. A hydraulic ram with an innerspring compression cushioning structure as set forth in claim 1, wherein said oil fill port (12) is further provided with:

a lubrication passage (11) provided on the other side of the oil filler port (12);

and the limiting plate (13) is arranged in the oil filling port (12), and a filter screen assembly (15) is arranged above the limiting plate (13).

6. The hydraulic oil cylinder with the built-in spring compression buffering structure as claimed in claim 5, characterized in that the structure of the filter screen component (15) is a hollow mesh structure, and the filter screen component (15) is detachably connected with the oil injection port (12).

7. A hydraulic cylinder with built-in spring compression cushion structure according to claim 1, wherein said cylinder barrel (1) is further provided with:

and the annular plates (10) are arranged on two sides of the inner wall of the oil cylinder barrel (1), and bristles (16) are arranged on the inner side of the annular plates (10).