CN219622994U - Hydraulic cylinder with dustproof effect - Google Patents

Abstract

The utility model relates to the technical field of hydraulic cylinders and discloses a hydraulic cylinder with a dustproof effect, which comprises a hydraulic cylinder body, wherein a piston rod is movably arranged at one end of the hydraulic cylinder body, two symmetrically arranged protective covers are movably arranged at one end of the hydraulic cylinder body, and two symmetrically arranged limiting rings are fixedly arranged on the outer wall of the protective cover. This kind of hydraulic cylinder with dustproof effect sets up two protection casings through the one end of being connected at hydraulic cylinder body and piston rod, and two spacing rings of protection casing and fixed mounting on the protection casing can protect the hookup location between piston rod and the main part, simultaneously, and the spacing ring is the components of a whole that can function independently setting, can carry out convenient change to the dust ring of its inside joint installation after two spacing rings are separated, need not the staff and uses the instrument to skid the dust ring to remove, and under the effect of extrusion ring, the dust ring can take place to make its dustproof effect better after deformation.

Description

Hydraulic cylinder with dustproof effect

Technical Field

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

Background

The hydraulic cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and performs 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, and is widely applied.

The existing hydraulic cylinders are provided with dust-proof rings in the hydraulic cylinders to prevent pollutants adhered to the piston rods from entering the cylinders, and the pollutants are likely to be accumulated at end covers due to cleaning of the dust-proof rings independently, and meanwhile the dust-proof rings are difficult to replace.

Among the prior art, patent number CN218479997U discloses a hydraulic cylinder dustproof construction, belongs to hydraulic cylinder technical field, including hydraulic cylinder body and piston rod, fixed mounting has the mounting panel on the hydraulic cylinder body, the mounting panel below is provided with the montant, montant side fixed mounting has the installation piece, be provided with the splint on the installation piece, be provided with the dust ring on the splint, be provided with the driving piece that is used for driving dust ring horizontal migration on the mounting panel, be provided with the fixed establishment who is used for fixed splint on installation piece and the splint, the driving piece includes the double-end motor of fixed mounting on the mounting panel, and this hydraulic cylinder dustproof construction can set up outside the hydraulic cylinder body, clear up the pollutant on the piston rod through outside dust ring, reduces the inside dust ring clearance pressure of hydraulic cylinder body, avoids the pollutant to pile up in the end cover department in a large number, can carry out simple and easy change to the dust ring, simple structure, and the practicality is strong.

According to the technical scheme, although pollutants on the piston rod can be cleaned and dust rings can be replaced, the structure of the technical scheme is complex, the cost loss is large during manufacturing, gaps exist between the two semicircular dust rings in the technical scheme, and fine dust still can be in contact with the outer wall of the piston rod through the gaps.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the hydraulic cylinder with the dustproof effect, so that the cost loss of the hydraulic cylinder is reduced and the dustproof effect of the hydraulic cylinder is improved during manufacturing.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a hydraulic cylinder with dustproof effect, includes the hydraulic cylinder body, the one end movable mounting of hydraulic cylinder body has the piston rod, the one end movable mounting of hydraulic cylinder body has the protection casing that two symmetries set up, and the outer wall fixed mounting of protection casing has the spacing ring that two symmetries set up, and the installation cavity has all been seted up to the end that two spacing rings kept away from the hydraulic cylinder body, installs the inside joint in cavity and installs the dust ring, and the terminal threaded connection of spacing ring has the extrusion ring, and the butt joint groove has been seted up to the one end that the extrusion ring is close to the spacing ring, the inner wall in butt joint groove and the outer wall threaded connection of spacing ring.

Preferably, two fixing lugs which are symmetrically arranged are fixedly arranged on the outer walls of the two protective covers, and bolts are connected to the fixing lugs in a threaded mode.

Preferably, the inner wall of the extrusion ring is provided with a cleaning cavity, the cleaning ring is installed in the cleaning cavity in a clamping mode, and the inner wall of the cleaning ring is in contact with the outer wall of the piston rod.

Preferably, the end of the limiting ring, which is close to the extrusion ring, is provided with a chamfer.

Preferably, the thickness of the dust ring is not less than one centimeter.

Preferably, a plurality of anti-slip strips are fixedly arranged on the outer wall of the extrusion ring.

Compared with the prior art, the utility model has the following beneficial effects:

this kind of hydraulic cylinder with dustproof effect sets up two protection casings through the one end of being connected at hydraulic cylinder body and piston rod, and two spacing rings of protection casing and fixed mounting on the protection casing can protect the hookup location between piston rod and the main part, simultaneously, the spacing ring sets up for the components of a whole that can function independently, can carry out convenient change to the dust ring of its inside joint installation after two spacing rings are separated, need not the staff and uses the instrument to skid the dust ring to remove, and under the effect of extrusion ring, the dust ring can take place to make its dustproof effect better after deformation, therefore, this technical scheme simple structure, low in manufacturing cost, and dustproof effect is better.

Drawings

FIG. 1 is a schematic view of the overall structure of the main body of the present utility model;

FIG. 2 is a schematic cross-sectional view of the extrusion ring structure of the present utility model;

fig. 3 is an enlarged partial schematic view of fig. 2 at a in accordance with the present utility model.

In the figure: 1. a hydraulic cylinder body; 2. a protective cover; 3. a fixed ear; 4. a dust ring; 5. a limiting ring; 6. a mounting cavity; 7. a pressing ring; 8. a butt joint groove; 9. a cleaning chamber; 10. a cleaning ring; 11. a piston rod.

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.

Examples

The technical scheme of the utility model is further described below with reference to the attached drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present utility model are shown.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", etc., azimuth or positional relationship are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of operations, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1-3, a hydraulic cylinder with dustproof effect comprises a hydraulic cylinder body 1, a piston rod 11 is movably mounted at one end of the hydraulic cylinder body 1, two symmetrically arranged protective covers 2 are movably mounted at one end of the hydraulic cylinder body 1, two symmetrically arranged limiting rings 5 are fixedly mounted on the outer wall of the protective cover 2, mounting cavities 6 are formed in the tail ends, far away from the hydraulic cylinder body 1, of the two limiting rings 5, a dustproof ring 4 is mounted in the mounting cavities 6 in a clamping manner, an extrusion ring 7 is connected with the tail end of the limiting ring 5 in a threaded manner, a butt joint groove 8 is formed in one end, close to the limiting ring 5, of the extrusion ring 7, and the inner wall of the butt joint groove 8 is in threaded connection with the outer wall of the limiting ring 5.

According to the hydraulic cylinder with the dustproof effect, when the hydraulic cylinder is used, a user can replace the dustproof ring 4 after using a tool to pry the dustproof ring 4, the main structure in the technology is more troublesome, the main structure of the hydraulic cylinder is similar to that of the hydraulic cylinder in the dustproof structure disclosed by the patent number CN218479997U, when the technical scheme is used, the user can combine two semicircular protective covers 2 and install the two semicircular protective covers at the tail end of the hydraulic cylinder body 1, at the moment, the two protective covers 2 and the limit ring 5 fixedly installed on the protective covers 2 can be combined to form a complete circular structure, the joint between the protective covers 2 and the limit ring 5 after being combined can protect the joint between the hydraulic cylinder body 1 and the piston rod 11, meanwhile, the limit ring 5 is internally clamped and installed on the dustproof ring 4, threads are arranged on the outer wall of the limit ring 5, when the extrusion ring 7 is in threaded connection with the limit ring 5, the lower end of the extrusion ring 7 is extruded with the dustproof ring 4, so that the two semicircular protective covers 4 can be combined, and the dustproof ring 4 can be conveniently replaced after the tool is manufactured, and the dustproof ring 4 is more easily replaced, and the dustproof ring 4 is required to be replaced, and the whole structure is replaced.

Further, as shown in fig. 1 and fig. 2, two fixing lugs 3 which are symmetrically arranged are fixedly arranged on the outer walls of the protection covers 2, bolts are connected to the fixing lugs 3 in a threaded manner, the two protection covers 2 are semicircular, two ends of the two protection covers 2 are connected through the bolts on the fixing lugs 3, after the bolts are screwed down by a user, the two protection covers 2 can be stably arranged at the tail end of the hydraulic cylinder body 1, the tail end of the hydraulic cylinder body 1 is protected, and meanwhile, the two semicircular limiting rings 5 are combined to form a complete ring.

Further, as shown in fig. 3, the inner wall of the extrusion ring 7 is provided with a cleaning cavity 9, the inside of the cleaning cavity 9 is clamped with a cleaning ring 10, the inner wall of the cleaning ring 10 is in contact with the outer wall of the piston rod 11, and after the cleaning ring 10 arranged in the cleaning cavity 9 is in contact with the piston rod 11, dust or other dirt and the like outside the piston rod 11 can be primarily cleaned, so that excessive dirt is prevented from being accumulated at the dust ring 4, and the service life of the dust ring 4 can be prolonged.

Further, as shown in fig. 3, a chamfer is provided at the end of the stop collar 5 near the extrusion ring 7, and the chamfer is provided to facilitate the end of the stop collar 5 to extend into the butt joint groove 8.

Further, as shown in fig. 3, the thickness of the dust ring 4 is not less than one centimeter, the dust ring 4 is elastically arranged, the thickness of the dust ring 4 is thickened, on one hand, the structural strength of the dust ring can be enhanced, the service life of the dust ring is prolonged, and on the other hand, the deformation range of the dust ring can be enlarged, so that the dust ring can be attached to the outer wall of the piston rod 11 after being worn after being further extruded.

Further, as shown in fig. 3, a plurality of anti-slip strips are fixedly installed on the outer wall of the extrusion ring 7, and the arrangement of the anti-slip strips can increase the friction between the outer wall of the extrusion ring 7 and the hand or external tool of the user, and can prevent slipping between the hand and the outer wall of the extrusion ring 7 and between the tool and the hand.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (6)

1. The utility model provides a hydraulic cylinder with dustproof effect, includes hydraulic cylinder body (1), and the one end movable mounting of hydraulic cylinder body (1) has piston rod (11), its characterized in that: one end movable mounting of hydraulic cylinder body (1) has protection casing (2) that two symmetries set up, the outer wall fixed mounting of protection casing (2) has spacing ring (5) that two symmetries set up, installation cavity (6) have all been seted up to the end that hydraulic cylinder body (1) was kept away from to two spacing rings (5), dust ring (4) are installed in the inside joint of installation cavity (6), the terminal threaded connection of spacing ring (5) has extrusion ring (7), butt joint groove (8) have been seted up to the one end that extrusion ring (7) is close to spacing ring (5), the inner wall of butt joint groove (8) and the outer wall threaded connection of spacing ring (5).

2. The hydraulic cylinder with dustproof effect according to claim 1, wherein: two fixed lugs (3) which are symmetrically arranged are fixedly arranged on the outer walls of the two protective covers (2), and bolts are connected to the fixed lugs (3) in a threaded mode.

3. The hydraulic cylinder with dustproof effect according to claim 1, wherein: the inner wall of the extrusion ring (7) is provided with a cleaning cavity (9), a cleaning ring (10) is mounted in the cleaning cavity (9) in a clamping mode, and the inner wall of the cleaning ring (10) is in contact with the outer wall of the piston rod (11).

4. The hydraulic cylinder with dustproof effect according to claim 1, wherein: the tail end of the limiting ring (5) close to the extrusion ring (7) is provided with a chamfer angle.

5. The hydraulic cylinder with dustproof effect according to claim 1, wherein: the thickness of the dustproof ring (4) is not less than one centimeter.

6. A hydraulic ram with dust control effect according to claim 3, wherein: the outer wall of the extrusion ring (7) is fixedly provided with a plurality of anti-slip strips.