CN213451111U

CN213451111U - Hydraulic cylinder with buffer function

Info

Publication number: CN213451111U
Application number: CN202022415910.XU
Authority: CN
Inventors: 刘达兴; 陈振森; 刘炳隆
Original assignee: Fujian Longyan Shengtong Hydraulic Co ltd
Current assignee: Fujian Longyan Shengtong Hydraulic Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-06-15
Anticipated expiration: 2030-10-27

Abstract

The utility model discloses a hydraulic cylinder with buffer function, including the cylinder, the first blotter of inside lower extreme fixedly connected with of cylinder, the other end fixedly connected with second buffer block of spring, the top of first blotter is provided with the cushion collar, the inner wall of cushion collar is provided with the cushion ring, the inner wall sliding seal of cylinder is connected with piston assembly, piston assembly's intermediate position fixedly connected with piston rod, the inside upper end fixedly connected with second blotter of cylinder, the lower extreme and the first buffer block relevant position of second blotter are provided with the dashpot. The utility model discloses in, at first the piston rod receives the effect of first blotter, second blotter and cushion collar in the motion can the significantly reduced piston rod impact force in the cylinder, secondly at the piston rod when moving the cylinder lower extreme in the effect of spring and buffer block, reduced the inside damage of hydro-cylinder, be worth wideling popularize.

Description

Hydraulic cylinder with buffer function

Technical Field

The utility model relates to a hydraulic cylinder field especially relates to a hydraulic cylinder with buffer function.

Background

The hydraulic oil cylinder is a rod-shaped structural tool with a telescopic function, is usually used for jacking and ejecting an object, changing the set and installation position of the object and being used in a height lifting structure of the object, and has the functions of changing the position state and positioning of the object.

However, when the existing hydraulic oil cylinder is used, when the oil cylinder starts and finishes stretching, the self-applied impact force vibrates greatly, the internal structure of the oil cylinder is easily damaged, the stress point for ejecting objects is also easily damaged, and meanwhile, when the hydraulic oil cylinder is used, a piston rod of the hydraulic oil cylinder is easily stained, so that the piston rod is worn during movement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a hydraulic oil cylinder with a buffering function.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a hydraulic oil cylinder with a buffering function comprises a cylinder barrel, wherein a first buffering cushion is fixedly connected to the lower end inside the cylinder barrel, a limiting groove is formed in the upper end of the first buffering cushion, a fixing block is fixedly connected to the lower end inside the limiting groove, a spring is fixedly connected to the upper end of the fixing block, a second buffering block is fixedly connected to the other end of the spring, a buffering sleeve is arranged above the first buffering cushion, a buffering ring is arranged on the inner wall of the buffering sleeve, a piston assembly is connected to the inner wall of the cylinder barrel in a sliding and sealing mode, a piston rod is fixedly connected to the middle position of the piston assembly, a fixing sleeve is fixedly connected to the upper end of the piston assembly, first buffering blocks are fixedly connected to the left side and the right side of the upper end of the fixing sleeve, a second buffering cushion is fixedly connected to the upper end inside the, the upper end fixedly connected with jar head of cylinder, the upper end of jar head is provided with clean cover, the inside top of clean cover is provided with scrapes the brush layer, the lower extreme of scraping the brush layer is provided with clean layer, the lower extreme of clean layer is provided with the filtration adsorbed layer, the lower extreme of clean cover is provided with the lubricating layer.

As a further description of the above technical solution:

an oil outlet is formed in the left side of the upper end of the cylinder barrel.

As a further description of the above technical solution:

an oil inlet is formed in the left side of the lower end of the cylinder barrel.

As a further description of the above technical solution:

the lower end of the cylinder barrel is fixedly connected with a cylinder bottom.

As a further description of the above technical solution:

the lower end of the piston rod is fixedly connected with a third buffer block.

As a further description of the above technical solution:

the piston rod penetrates through the cylinder head, the second cushion pad and the cushion sleeve and is connected in the cylinder barrel in a sliding mode.

As a further description of the above technical solution:

the cylinder barrel is made of steel.

As a further description of the above technical solution:

the cleaning layer is made of nano sponge.

The utility model discloses following beneficial effect has:

1. the utility model discloses in, at first the piston rod receives the impact force of piston rod that can significantly reduce in the cylinder of the effect of first blotter, second blotter and cushion collar in the motion, secondly under the effect of spring and buffer block when the piston rod moves the cylinder lower extreme, thereby the piston rod that has significantly reduced has reduced the inside damage of hydro-cylinder to the impact force of cylinder.

2. In the utility model, the scraping layer inside the cleaning sleeve firstly scrapes and brushes the stain on the piston rod through the soft brush, then the stain is cleaned and adsorbed through the nano sponge of the cleaning layer, then the stain on the piston rod is adsorbed and filtered through the filtering and adsorbing layer to separate the stain from the piston rod, finally the lubricating layer in the cleaning sleeve lubricates the surface of the piston rod to ensure that the piston rod operates more smoothly,

drawings

Fig. 1 is a front view of a hydraulic cylinder with a buffering function provided by the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a schematic structural view of a cleaning sleeve of a hydraulic cylinder with a buffering function provided by the present invention;

fig. 4 is an enlarged view at B in fig. 1.

Illustration of the drawings:

1. a cylinder barrel; 2. scraping and brushing the layer; 3. a piston rod; 4. cleaning the sleeve; 5. a first buffer block; 6. an oil inlet; 7. a buffer ring; 8. a third buffer block; 9. a buffer sleeve; 10. a spring; 11. a second buffer block; 12. a cylinder bottom; 13. a first cushion pad; 14. a cleaning layer; 15. filtering the adsorption layer; 16. a lubricating layer; 17. a second cushion pad; 18. a cylinder head; 19. a buffer tank; 20. an oil outlet; 21. fixing a sleeve; 22. a piston assembly; 23. a limiting groove; 24. and (5) fixing blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a hydraulic oil cylinder with a buffering function comprises a cylinder barrel 1, wherein a first cushion pad 13 is fixedly connected to the lower end inside the cylinder barrel 1, a limiting groove 23 is formed in the upper end of the first cushion pad 13, a fixing block 24 is fixedly connected to the lower end inside the limiting groove 23, a spring 10 is fixedly connected to the upper end of the fixing block 24, a second cushion block 11 is fixedly connected to the other end of the spring 10, a buffer sleeve 9 is arranged above the first cushion pad 13, a buffer ring 7 is arranged on the inner wall of the buffer sleeve 9, a piston assembly 22 is connected to the inner wall of the cylinder barrel 1 in a sliding and sealing mode, a piston rod 3 is fixedly connected to the middle position of the piston assembly 22, a fixing sleeve 21 is fixedly connected to the upper end of the piston assembly 22, first cushion blocks 5 are fixedly connected to the left side and the right side of the upper end of the fixing sleeve 21, a second cushion pad 17, piston rod 3 is when carrying out reciprocating motion, piston rod 3 downstream cushion collar 9 can reduce piston rod 3's impact force, piston rod 3 is downstream first blotter 13 department then, the impact force of piston rod 3 that cylinder 1 receives can significantly reduce under the effect of spring 10 and second buffer block 11 of first blotter 13 department, the upper end fixedly connected with cylinder head 18 of cylinder 1, the upper end of cylinder head 18 is provided with clean cover 4, the inside top of clean cover 4 is provided with scrapes brush layer 2, the lower extreme of scraping brush layer 2 is provided with clean layer 14, the lower extreme of clean layer 14 is provided with filtration adsorbed layer 15, the lower extreme of clean cover 4 is provided with lubricating layer 16.

The upper end left side of cylinder 1 is provided with oil-out 20, the lower extreme left side of cylinder 1 is provided with oil inlet 6, the lower extreme fixedly connected with cylinder bottom 12 of cylinder 1, the lower extreme fixedly connected with third buffer block 8 of piston rod 3, piston rod 3 runs through cylinder head 18, second buffer pad 17 and buffer sleeve 9 and sliding connection are in cylinder 1, the material of cylinder 1 is the steel, the intensity of steel is high and plastic toughness is good, the material of cleaning layer 14 is the nanometer sponge, nanometer sponge trompil network structure makes magical sponge wipe the inside microcosmic gasbag of constituteing by nanometer pore-shaped structure, can adsorb and take away the spot granule that produces by the friction.

The working principle is as follows: when the piston rod 3 reciprocates in the cylinder barrel 1, the piston rod 3 moves downwards to the buffer sleeve 9 to reduce the impact force of the piston rod 3, the piston rod 3 then moves downwards to the first buffer pad 13, the impact force of the piston rod 3 borne by the cylinder barrel 1 can be greatly reduced under the action of the spring 10 and the second buffer block 11 at the first buffer pad 13, the upward impact force of the piston rod 3 can be greatly reduced through the combination of the first buffer block 5 and the buffer groove 19 when the piston rod 3 moves upwards to the top end of the cylinder barrel 1, so that the buffer effect is achieved, during the reciprocating motion of the piston rod 3, the scraping and brushing layer 2 in the cleaning sleeve 4 firstly scrapes and brushes the stains on the piston rod 3 through a soft brush, then the stains are cleaned and adsorbed through the nano sponge of the cleaning layer 14, and then the stains on the piston rod 3 are adsorbed and filtered through the filtering and adsorbing layer 15 to enable the stains to be separated, finally, the surface of the piston rod 3 is lubricated by the lubricating layer 16 in the cleaning sleeve 4.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a hydraulic cylinder with buffer function, includes cylinder (1), its characterized in that: the inner lower end of the cylinder barrel (1) is fixedly connected with a first cushion pad (13), the upper end of the first cushion pad (13) is provided with a limiting groove (23), the inner lower end of the limiting groove (23) is fixedly connected with a fixing block (24), the upper end of the fixing block (24) is fixedly connected with a spring (10), the other end of the spring (10) is fixedly connected with a second cushion block (11), a cushion sleeve (9) is arranged above the first cushion pad (13), the inner wall of the cushion sleeve (9) is provided with a cushion ring (7), the inner wall of the cylinder barrel (1) is connected with a piston assembly (22) in a sliding and sealing manner, the middle position of the piston assembly (22) is fixedly connected with a piston rod (3), the upper end of the piston assembly (22) is fixedly connected with a fixing sleeve (21), and the left and right sides of the upper end of the fixing sleeve, the utility model discloses a cleaning device, including cylinder (1), lower extreme and first buffer block (5), the inside upper end fixedly connected with second blotter (17) of cylinder (1), the lower extreme and the first buffer block (5) relevant position of second blotter (17) are provided with dashpot (19), the upper end fixedly connected with cylinder head (18) of cylinder (1), the upper end of cylinder head (18) is provided with clean cover (4), the inside top of clean cover (4) is provided with scrapes brush layer (2), the lower extreme of scraping brush layer (2) is provided with clean layer (14), the lower extreme of clean layer (14) is provided with and filters adsorbed layer (15), the lower extreme of clean cover (4) is provided with lubricant film (16).

2. A hydraulic ram having a cushioning function as claimed in claim 1, wherein: an oil outlet (20) is formed in the left side of the upper end of the cylinder barrel (1).

3. A hydraulic ram having a cushioning function as claimed in claim 1, wherein: an oil inlet (6) is formed in the left side of the lower end of the cylinder barrel (1).

4. A hydraulic ram having a cushioning function as claimed in claim 1, wherein: the lower end of the cylinder barrel (1) is fixedly connected with a cylinder bottom (12).

5. A hydraulic ram having a cushioning function as claimed in claim 1, wherein: the lower end of the piston rod (3) is fixedly connected with a third buffer block (8).

6. A hydraulic ram having a cushioning function as claimed in claim 1, wherein: the piston rod (3) penetrates through the cylinder head (18), the second buffer pad (17) and the buffer sleeve (9) and is connected in the cylinder barrel (1) in a sliding mode.

7. A hydraulic ram having a cushioning function as claimed in claim 1, wherein: the cylinder barrel (1) is made of steel.

8. A hydraulic ram having a cushioning function as claimed in claim 1, wherein: the cleaning layer (14) is made of nano sponge.