CN220816114U - Wear-resistant hydraulic cylinder - Google Patents

Abstract

The utility model discloses a wear-resistant hydraulic cylinder, which comprises a cylinder body, wherein one end of the cylinder body is in threaded connection with a cylinder cover, a dustproof component is arranged on the outer side of the cylinder cover, clamping components which are arranged on two sides of the dustproof component in a mirror image mode and are used for fixing the dustproof component are also arranged on the outer side of the cylinder cover, a piston is connected in a sliding mode and is fixedly connected with a hydraulic rod, the dustproof component is arranged at the output end of the outer side of the cylinder cover to block external dust, and lubricating oil is infused into a containing cavity of the dustproof component to soak cotton blocks, so that the wear resistance of a hydraulic rod and a sealing ring can be greatly improved.

Description

Wear-resistant hydraulic cylinder

Technical Field

The utility model relates to the field of hydraulic cylinders, in particular to a wear-resistant hydraulic cylinder.

Background

The hydraulic cylinder is a mechanical energy efficiency output executive component of a hydraulic system, has the advantages of large transmission energy, compact structure, flexible and convenient reversing, stable and uniform rotation and feasibility of motion positioning control in the process of executing reciprocating linear motion, and can generally generate abrasion phenomenon in the use process, maintain the purity of hydraulic oil and the dryness of the outer ring surface of a piston rod, effectively improve the abrasion-resistant effect of the hydraulic cylinder, namely maintain the cleanliness of the outer ring surface of the piston rod, and can avoid bringing dust and the like into the cylinder barrel when the piston rod returns, thereby polluting the hydraulic oil and increasing the abrasion between the piston rod and the cylinder barrel.

Through retrieval, the utility model has the following publication number: the utility model discloses a hydraulic cylinder with a high wear-resistant effect, which comprises a high wear-resistant hydraulic cylinder main body, wherein mounting protrusions are arranged at two ends of the high wear-resistant hydraulic cylinder main body, an elastic sleeve is fixed on one side of the high wear-resistant hydraulic cylinder main body, which is positioned at an output end, and a connecting plate is fixed on the other end of the elastic sleeve.

This practical hydraulic cylinder blocks outside dust entering through setting up parts such as fixed elastic sleeve, gasbag at the output, but because the accumulation of dust needs regularly to wash, and this kind of fixed dirt proof assembly dismantles extremely inconveniently when needs wash.

Disclosure of utility model

In order to overcome the defects in the prior art, the utility model provides a wear-resistant hydraulic cylinder to solve the problem that the existing dustproof assembly provided in the background art is inconvenient to detach when the dustproof assembly needs to be cleaned.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a stand wear and tear hydraulic cylinder, includes the cylinder body, cylinder body one end threaded connection has the cylinder cap, the cylinder cap outside is equipped with dustproof subassembly, the cylinder cap outside still is equipped with the mirror image setting in dustproof subassembly both sides and is used for fixed dustproof subassembly's joint subassembly, the inside sliding connection of cylinder body has the piston, piston fixedly connected with hydraulic stem.

Preferably, one end of the hydraulic rod is fixedly connected to the center of one side of the piston, facing the cylinder cover, and the other end of the hydraulic rod penetrates through the cylinder cover and the dustproof assembly to the outside.

Preferably, one side of the cylinder body is also provided with an oil through hole communicated with the internal cavity, and the oil through hole is provided with two ends which are respectively positioned at one side of the cylinder body.

Preferably, a groove is formed in the cylinder body, away from the center of one end of the cylinder cover, a first spring is vertically fixed in the groove, a buffer block is fixedly connected to the other end of the first spring, the outer diameter of the buffer block is matched with the inner diameter of the groove, and the buffer block slides in the groove through one side.

Preferably, the dustproof component comprises a dustproof cover, a sealing ring, a cotton block, a filter screen, an oil inlet and a slot; the dustproof cover is arranged on the outer side of the cylinder cover, and a containing cavity is formed in the dustproof cover; the width of the sealing ring is consistent with that of the dust cover, and the sealing ring is embedded in the center of the dust cover; the cotton block is positioned in the accommodating cavity and is clamped with the sealing ring through one side to the inner edge of the sealing ring; the filter screen is annular and fixed on the inner wall of the accommodating cavity and positioned at the periphery of the cotton block; the oil inlet is formed in the top of the dust cover and is embedded with a dust plug; the slot is arranged at the periphery of the dust cover and is close to one side of the cylinder cover.

Preferably, the clamping assembly comprises a chute, a sliding cavity, a sliding rod, a sliding sleeve, a second spring, a sliding block, an inserting rod and a pulling block; the sliding groove is formed in the outer side of the cylinder cover and close to one side of the dustproof assembly; the sliding cavity is arranged in the cylinder cover and is in through connection with the sliding groove; the sliding rod is vertically fixed on the inner wall of the sliding cavity and is kept horizontal with the sliding groove; the sliding sleeve is sleeved on the periphery of the sliding rod and is connected with the periphery of the sliding rod in a sliding manner; the second spring is sleeved on the periphery of the sliding rod and is respectively fixed with the sliding sleeve and the inner wall of the sliding cavity through two ends; the sliding block is connected in the sliding groove in a sliding way and is fixedly connected with the sliding sleeve; the inserted link is fixed on the outer side of the sliding block, and the outer diameter of the inserted link is identical to and coaxial with the inner diameter of the slot of the dustproof assembly; the pull block is fixed on the outer side of the inserted link.

Compared with the prior art, the utility model has the following beneficial effects: according to the hydraulic cylinder, the dustproof component is arranged at the output end of the outer side of the cylinder cover to block external dust, and the cotton block is soaked by the lubricating oil infused into the accommodating cavity of the dustproof component, so that the wear resistance of the hydraulic rod and the sealing ring can be greatly improved.

Drawings

FIG. 1 is a cross-sectional view of the present utility model;

FIG. 2 is an enlarged view of the utility model at A of FIG. 1;

FIG. 3 is a schematic view of a dust assembly of the present utility model;

FIG. 4 is an external view of the present utility model;

Wherein: 1. a cylinder; 2. a cylinder cover; 3. a piston; 4. a hydraulic rod; 5. a groove; 6. a first spring; 7. a buffer block; 8. an oil port; 9. a dust-proof assembly; 10. a dust cover; 11. a receiving chamber; 12. a seal ring; 13. cotton block; 14. a filter screen; 15. an oil inlet; 16. a dust plug; 17. a slot; 18. a clamping assembly; 19. a chute; 20. a sliding cavity; 21. a slide bar; 22. a second spring; 23. a sliding sleeve; 24. a slide block; 25. a rod; 26. pulling blocks.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained will become readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.

Examples:

As shown in fig. 1-4, the utility model provides a wear-resistant hydraulic cylinder, which comprises a cylinder body 1, wherein one end of the cylinder body 1 is in threaded connection with a cylinder cover 2, a dustproof component 9 is arranged on the outer side of the cylinder cover 2, clamping components 18 which are arranged on two sides of the dustproof component 9 in a mirror image manner and are used for fixing the dustproof component 9 are also arranged on the outer side of the cylinder cover 2, a piston 3 is connected inside the cylinder body 1 in a sliding manner, and a hydraulic rod 4 is fixedly connected with the piston 3.

In this embodiment, specifically, one end of the hydraulic rod 4 is fixedly connected to the center of the side of the piston 3 facing the cylinder cover 2, and the other end penetrates the cylinder cover 2 and the dust-proof assembly 9 to the outside.

In this embodiment, specifically, one side of the cylinder 1 is further provided with an oil through hole 8 that is communicated with the internal cavity, and the oil through hole 8 is provided with two ends that are respectively located at one side of the cylinder 1.

In this embodiment, specifically, the cylinder body 1 is inside to keep away from the one end center department of cylinder cap 2 and has seted up recess 5, be fixed with first spring 6 in the recess 5 perpendicularly, the other end fixedly connected with buffer block 7 of first spring 6, buffer block 7 external diameter and recess 5 internal diameter coincide, and slide in recess 5 through one side.

In this embodiment, specifically, the dust-proof component 9 includes a dust cover 10, a sealing ring 12, a cotton block 13, a filter screen 14, an oil inlet 15, and a slot 17; the dust cover 10 is arranged on the outer side of the cylinder cover 2, and a containing cavity 11 is formed in the dust cover; the width of the sealing ring 12 is consistent with that of the dust cover 10, and is embedded in the center of the dust cover 10; the cotton block 13 is positioned in the accommodating cavity 11 and is clamped with the sealing ring 12 through one side to the inner edge of the sealing ring 12; the filter screen 14 is annular and fixed on the inner wall of the accommodating cavity 11 and is positioned at the periphery of the cotton block 13; the oil inlet 15 is formed in the top of the dust cover 10 and is embedded with a dust plug 16; the slot 17 is formed on the periphery of the dust cover 10 and is close to the cylinder cover 2.

In this embodiment, specifically, the clamping assembly 18 includes a chute 19, a sliding cavity 20, a sliding rod 21, a sliding sleeve 23, a second spring 22, a sliding block 24, a plug rod 25, and a pull block 26; the sliding groove 19 is formed in the outer side of the cylinder cover 2 and is close to one side of the dustproof assembly 9; the sliding cavity 20 is arranged in the cylinder cover 2 and is communicated with the sliding groove 19; the slide bar 21 is vertically fixed on the inner wall of the slide cavity 20 and keeps horizontal with the slide groove 19; the sliding sleeve 23 is sleeved and connected to the periphery of the sliding rod 21 in a sliding manner; the second spring 22 is sleeved on the periphery of the sliding rod 21 and is respectively fixed with the sliding sleeve 23 and the inner wall of the sliding cavity 20 through two ends; the sliding block 24 is connected in the sliding groove 19 in a sliding way and is fixedly connected with the sliding sleeve 23; the inserted link 25 is fixed on the outer side of the sliding block 24, and the outer diameter of the inserted link 25 is matched with and coaxial with the inner diameter of the slot 17 of the dustproof assembly 9; the pull block 26 is fixed to the outer side of the insert rod 25.

Working principle: when the anti-collision device is used, hydraulic oil is respectively led into and out of the two oil through holes 8 to reciprocate the piston 3, and when the piston 3 is displaced to the end far away from the cylinder cover 2, the piston collides with the buffer block 7, and the buffer block 7 is abutted against and compresses the first spring 6 to play a role in buffering the anti-collision bottom; the sealing ring 12 in the dust cover 10 of the dust-proof assembly 9 is tightly sleeved on the periphery of the hydraulic rod 4 to play a role in blocking external dust from entering, the whole accommodating cavity 11 is filled with lubricating liquid through injecting the lubricating liquid into the oil inlet 15, the lubricating liquid permeates the cotton block 13 and permeates the inner edge of the sealing ring 12, the sealing ring 12 and the hydraulic rod 4 are lubricated more, the wear-resisting effect is achieved, the filter screen 14 in the accommodating cavity 11 can prevent foreign matters from entering, and the dust-proof plug 16 embedded outside the oil inlet 15 plays a role in preventing dust from entering the inside; when the clamping assembly 18 is used for disassembling the dustproof assembly 9, the pull block 26 is shifted to drive the inserting rod 25 to move, the sliding block 24 is driven to slide in the sliding groove 19, the sliding sleeve 23 is driven to slide on the sliding rod 21, and the second spring 22 is compressed, so that the inserting rod 25 is separated from the slot 17 of the dustproof cover 10 of the dustproof assembly 9, and the dustproof assembly 9 can be disassembled; similarly, the pull block 26 is released, the second spring 22 is restored, the sliding sleeve 23, the sliding block 24 and the inserting rod 25 are pushed, the inserting rod 25 is embedded into the slot 17 of the dustproof assembly 9, and the dustproof assembly 9 is fixed.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 (6)

1. The utility model provides a stand wear and tear hydraulic cylinder, includes cylinder body (1), its characterized in that: cylinder body (1) one end threaded connection has cylinder cap (2), the cylinder cap (2) outside is equipped with dustproof subassembly (9), cylinder cap (2) outside still is equipped with mirror image setting in dustproof subassembly (9) both sides and is used for joint subassembly (18) of fixed dustproof subassembly (9), the inside sliding connection of cylinder body (1) has piston (3), piston (3) fixedly connected with hydraulic stem (4).

2. A wear resistant hydraulic ram as set forth in claim 1, wherein: one end of the hydraulic rod (4) is fixedly connected to the center of one side, facing the cylinder cover (2), of the piston (3), and the other end of the hydraulic rod penetrates through the cylinder cover (2) and the dustproof assembly (9) to the outside.

3. A wear resistant hydraulic ram as set forth in claim 1, wherein: the cylinder body (1) one side is also provided with an oil through hole (8) communicated with the internal cavity, and the oil through hole (8) is provided with two ends which are respectively positioned at one side of the cylinder body (1).

4. A wear resistant hydraulic ram as set forth in claim 1, wherein: the cylinder body (1) is inside to keep away from one end center department of cylinder cap (2) and has offered recess (5), be fixed with first spring (6) in recess (5) perpendicularly, first spring (6) other end fixedly connected with buffer block (7), buffer block (7) external diameter and recess (5) internal diameter coincide, and slide in recess (5) through one side.

5. A wear resistant hydraulic ram as set forth in claim 1, wherein: the dustproof assembly (9) comprises a dustproof cover (10), a sealing ring (12), cotton blocks (13), a filter screen (14), an oil inlet (15) and a slot (17); the dustproof cover (10) is arranged at the outer side of the cylinder cover (2), and a containing cavity (11) is formed in the dustproof cover; the width of the sealing ring (12) is consistent with that of the dust cover (10), and the sealing ring is embedded in the center of the dust cover (10); the cotton block (13) is positioned in the accommodating cavity (11) and is clamped with the sealing ring (12) through one side to the inner edge of the sealing ring (12); the filter screen (14) is annular and fixed on the inner wall of the accommodating cavity (11) and is positioned at the periphery of the cotton block (13); the oil inlet (15) is formed in the top of the dust cover (10) and is embedded with a dust plug (16); the slot (17) is arranged at the periphery of the dust cover (10) and is close to one side of the cylinder cover (2).

6. A wear resistant hydraulic ram as set forth in claim 1, wherein: the clamping assembly (18) comprises a sliding groove (19), a sliding cavity (20), a sliding rod (21), a sliding sleeve (23), a second spring (22), a sliding block (24), an inserting rod (25) and a pulling block (26); the sliding groove (19) is formed in the outer side of the cylinder cover (2) and is close to one side of the dustproof assembly (9); the sliding cavity (20) is arranged in the cylinder cover (2) and is communicated with the sliding groove (19); the sliding rod (21) is vertically fixed on the inner wall of the sliding cavity (20) and is kept horizontal with the sliding groove (19); the sliding sleeve (23) is sleeved and connected to the periphery of the sliding rod (21) in a sliding manner; the second spring (22) is sleeved on the periphery of the sliding rod (21) and is respectively fixed with the sliding sleeve (23) and the inner wall of the sliding cavity (20) through two ends; the sliding block (24) is connected in the sliding groove (19) in a sliding way and is fixedly connected with the sliding sleeve (23); the inserting rod (25) is fixed on the outer side of the sliding block (24), and the outer diameter of the inserting rod (25) is matched with and coaxial with the inner diameter of the slot (17) of the dustproof assembly (9); the pull block (26) is fixed on the outer side of the inserted link (25).