CN221462648U

CN221462648U - Dustproof hydraulic cylinder

Info

Publication number: CN221462648U
Application number: CN202323509846.1U
Authority: CN
Inventors: 周秀明
Original assignee: Yancheng Zhensheng Hydraulic Machinery Co ltd
Current assignee: Yancheng Zhensheng Hydraulic Machinery Co ltd
Priority date: 2023-12-21
Filing date: 2023-12-21
Publication date: 2024-08-02
Anticipated expiration: 2033-12-21

Abstract

The utility model discloses a dustproof hydraulic cylinder, which relates to the technical field of hydraulic cylinders, wherein when dust is adhered to the surface of a piston rod and contracts towards the inside of a cylinder body of the cylinder, the dust on the surface of the piston rod is isolated and cleaned by a cleaning ring, and the cleaning ring is matched with an elastic piece and an air cavity, so that the cleaning ring is extruded continuously, is enabled to be more attached to the piston rod, the cleaning performance of the cleaning ring is convenient to be enhanced, the dustproof function of the hydraulic cylinder is realized, the service life of the hydraulic cylinder is prolonged, when the cleaning ring is used for a long time, the cleaning capability is reduced, the installation ring is enabled to be completely separated from a positioning end by rotating the installation ring, the cleaning ring is convenient to take out, the installation ring is assembled by threads again after cleaning and replacement, and the installation ring is prevented from being loosened by threaded connection with the positioning end due to equipment vibration by utilizing a spring to drive a clamping ball to be extruded and clamped in a clamping groove, and the cleaning performance of the cleaning ring is favorable to be maintained.

Description

Dustproof hydraulic cylinder

Technical Field

The utility model relates to the technical field of hydraulic cylinders, in particular to a dustproof hydraulic cylinder.

Background

The hydraulic cylinder is a hydraulic executive component which converts hydraulic energy into mechanical energy and carries out linear reciprocating motion or swinging motion, has simple structure and reliable work, can avoid a speed reducing device when being used for realizing reciprocating motion, has no transmission clearance and stable motion, thus being widely applied to hydraulic systems of various machines, and the output force of the hydraulic cylinder is in direct proportion to the effective area of a piston and the pressure difference on two sides of the piston.

For example, publication No. CN216343150U, a dustproof hydraulic cylinder, its structure includes the cylinder body, the cylinder body left end is equipped with the location end, location end left end is equipped with the dust ring positioning seat, the inside transmission of cylinder body is equipped with the piston rod, the piston rod tip is movable simultaneously to pierce through in location end, dust ring positioning seat, when hydraulic cylinder does not use, with dustproof snare in the piston rod, then imbed in the annular assembly inslot of dust ring positioning seat, restrict fixedly through screwing the restriction bolt, when hydraulic cylinder needs to use, unscrew the restriction bolt, pull the dust ring through the restriction bolt, break away from the dust ring positioning seat, help improving the convenience of taking out, and the volume is less, be convenient for accomodate.

After the existing hydraulic cylinder works in time, external dust particles are easily brought into the hydraulic cylinder through the output end of the hydraulic cylinder, and the internal environment is polluted by adhesion, so that the working performance and the service life of the hydraulic cylinder are affected.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a dustproof hydraulic cylinder, which solves the problems that the prior hydraulic cylinder is easy to bring external dust particles into the hydraulic cylinder through the output end of the hydraulic cylinder after working in time, and the internal environment is polluted by adhesion, so that the working performance and the service life of the hydraulic cylinder are influenced.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a dirt-proof hydraulic cylinder, includes the hydro-cylinder body, the upper end fixed mounting of hydro-cylinder body has the locating terminal, the screw thread groove has been seted up to the upper end of locating terminal, the block groove has been seted up to the inboard lower extreme of screw thread groove, the inboard threaded connection of screw thread groove has the collar, the mounting groove has been seted up to the lower extreme of collar, the inside fixed mounting of mounting groove has the spring, the lower extreme fixed mounting of spring has the block ball, the upside fixed mounting of collar internal surface has the solid fixed ring, the internal surface fixed mounting of solid fixed ring has the elastic component, the inside of elastic component is provided with the air cavity, the one end fixedly connected with cleaning ring of solid fixed ring is kept away from to the elastic component.

Preferably, the thread groove is of an annular structural design, and the concave surface of the clamping groove is of an arc structural design.

Preferably, the clamping ball is in clamping connection with the clamping groove, and the clamping ball is in sliding connection with the mounting groove.

Preferably, the elastic pieces are distributed in an annular array, and the elastic pieces are made of polyurethane.

Preferably, a piston rod is arranged in the cylinder body of the oil cylinder, the upper end of the piston rod extends to the outer side of the cylinder body of the oil cylinder and is in sliding connection with the positioning end, and the piston rod is in sliding connection with the cleaning ring.

Preferably, the surface of the cylinder body of the oil cylinder is fixedly provided with a radiating fin, and the radiating fin is in an annular structural design.

Advantageous effects

The utility model provides a dustproof hydraulic cylinder. Compared with the prior art, the method has the following beneficial effects:

1. This dirt-proof hydraulic cylinder, when the surface of piston rod is stained with the dust to when contracting to the cylinder body inside, separate the cleaning through clean ring and when the dust on piston rod surface, cooperation elastic component and air cavity, constantly extend extrusion clean ring for clean ring laminating piston rod more, the clean performance of clean ring of being convenient for has realized hydraulic cylinder's dustproof function, is favorable to prolonging hydraulic cylinder's life.

2. This dirt-proof hydraulic cylinder, when clean ring uses for a long time and causes the clean ability decline for through rotating the collar for the collar breaks away from the locating terminal completely, is convenient for take out clean ring, and after the clearance was changed, screw thread assembly collar again, and utilizes the spring to drive the extrusion laminating of block ball block groove, avoids the collar to lead to not hard up with locating terminal threaded connection because of equipment vibrations, is favorable to keeping clean ring's clean performance.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

Fig. 3 is an enlarged schematic view of the structure at a in fig. 2.

In the figure: 1. an oil cylinder body; 2. a positioning end; 3. a thread groove; 4. a clamping groove; 5. a mounting ring; 6. a mounting groove; 7. a spring; 8. a snap ball; 9. a fixing ring; 10. an elastic member; 11. an air cavity; 12. a cleaning ring; 13. a piston rod; 14. a heat sink.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: a dustproof hydraulic cylinder comprises a cylinder body 1, wherein a positioning end 2 is fixedly arranged at the upper end of the cylinder body 1, a thread groove 3 is formed in the upper end of the positioning end 2, a clamping groove 4 is formed in the lower end of the inner side of the thread groove 3, a mounting ring 5 is connected with the inner side of the thread groove 3 in a threaded manner, a mounting groove 6 is formed in the lower end of the mounting ring 5, a spring 7 is fixedly arranged in the mounting groove 6, a clamping ball 8 is fixedly arranged at the lower end of the spring 7, the thread groove 3 is of an annular structural design, the concave surface of the clamping groove 4 is of an arc structural design, the clamping ball 8 is in clamping connection with the clamping groove 4, the clamping ball 8 is in sliding connection with the mounting groove 6, when the cleaning ring 12 is reduced in cleaning capability due to long-time use, the mounting ring 5 is enabled to be completely separated from the positioning end 2 through rotation, the cleaning ring 12 is conveniently taken out, the mounting ring 5 is assembled in a threaded manner again after cleaning and replacement is carried out, the clamping ball 8 is driven by the spring 7 to press the clamping ball 4, the mounting ring 5 is prevented from being in threaded connection with the positioning end 2 due to vibration of equipment, and cleaning performance of the cleaning ring 12 is favorably maintained;

The upper side of the inner surface of the mounting ring 5 is fixedly provided with a fixing ring 9, the inner surface of the fixing ring 9 is fixedly provided with an elastic member 10, the inside of the elastic member 10 is provided with an air cavity 11, one end of the elastic member 10 away from the fixing ring 9 is fixedly connected with a cleaning ring 12, the elastic members 10 are distributed in an annular array, the elastic member 10 is made of polyurethane, a piston rod 13 is slidably connected with the cleaning ring 12, when the surface of the piston rod 13 is adhered with dust and contracts towards the inside of the cylinder body 1, the cleaning ring 12 is used for blocking and cleaning the dust on the surface of the piston rod 13, and the cleaning ring 12 is matched with the elastic member 10 and the air cavity 11 to continuously extend and squeeze the cleaning ring 12, so that the cleaning ring 12 is more adhered to the piston rod 13, the cleaning performance of the cleaning ring 12 is convenient to be enhanced, the dustproof function of the hydraulic cylinder is realized, and the service life of the hydraulic cylinder is prolonged;

The inside of hydro-cylinder body 1 is provided with piston rod 13, and the upper end of piston rod 13 extends to the outside and the locating terminal 2 sliding connection of hydro-cylinder body 1, and the fixed surface of hydro-cylinder body 1 installs fin 14, and fin 14 is annular structural design, through fin 14 that hydro-cylinder body 1 surface set up, conveniently improves the heat dispersion of hydro-cylinder body 1, avoids the working property of high temperature influence hydraulic cylinder and dustproof construction thereof.

When the hydraulic cylinder is used, dust is adhered to the surface of the piston rod 13 and contracts towards the inside of the cylinder body 1, the dust on the surface of the piston rod 13 is blocked and cleaned by the cleaning ring 12, the cleaning ring 12 is matched with the elastic piece 10 and the air cavity 11, the cleaning ring 12 is continuously extended and extruded to be more attached to the piston rod 13, the cleaning performance of the cleaning ring 12 is convenient to strengthen, the dustproof function of the hydraulic cylinder is realized, when the cleaning ring 12 is used for a long time to reduce the cleaning performance, the mounting ring 5 is enabled to be completely separated from the positioning end 2 by rotating the mounting ring 5, the cleaning ring 12 is convenient to take out, the mounting ring 5 is assembled by threads again after cleaning and replacement is carried out, the clamping ball 8 is driven by the spring 7 to extrude and attach to the clamping groove 4, the mounting ring 5 is prevented from being loosened due to equipment vibration, the cleaning performance of the cleaning ring 12 is facilitated to be kept, and the heat dissipation capability of the cylinder body 1 is conveniently improved by the heat dissipation fin 14 arranged on the surface of the cylinder body 1, and the working performance of the hydraulic cylinder and the dustproof structure is prevented from being influenced by high temperature.

And all that is not described in detail in this specification is well known to those skilled in the art.

Claims

1. The utility model provides a dustproof hydraulic cylinder, includes hydro-cylinder body (1), its characterized in that: the utility model discloses a cleaning device for the oil cylinder body, including cylinder body (1), fixed connection, elastic component (10), fixed ring (9) are installed to the upper end fixed mounting of cylinder body (1), screw thread groove (3) have been seted up to the upper end of fixed connection (2), joint groove (4) have been seted up to the inboard lower extreme of screw thread groove (3), mounting groove (6) have been seted up to the lower extreme of mounting groove (5), the inside fixed mounting of mounting groove (6) has spring (7), the lower extreme fixed mounting of spring (7) has joint ball (8), the upside fixed mounting of mounting ring (5) internal surface has solid fixed ring (9), the internal surface fixed mounting of solid fixed ring (9) has elastic component (10), the inside of elastic component (10) is provided with air cavity (11), the one end fixedly connected with cleaning ring (12) of solid fixed ring (9) are kept away from to elastic component (10).

2. A dustproof hydraulic cylinder according to claim 1, wherein: the thread groove (3) is of an annular structural design, and the concave surface of the clamping groove (4) is of an arc structural design.

3. A dustproof hydraulic cylinder according to claim 2, wherein: the clamping ball (8) is connected with the clamping groove (4) in a clamping mode, and the clamping ball (8) is connected with the mounting groove (6) in a sliding mode.

4. A dustproof hydraulic cylinder according to claim 1, wherein: the elastic pieces (10) are distributed in an annular array, and the elastic pieces (10) are made of polyurethane.

5. A dustproof hydraulic cylinder according to claim 1, wherein: the inside of hydro-cylinder body (1) is provided with piston rod (13), the outside and the locating end (2) sliding connection of extension to hydro-cylinder body (1) of upper end of piston rod (13), piston rod (13) and clean ring (12) sliding connection.

6. A dustproof hydraulic cylinder according to claim 1, wherein: the surface of the cylinder body (1) is fixedly provided with radiating fins (14), and the radiating fins (14) are of annular structural design.