CN214274112U

CN214274112U - Cylinder protection device for low-temperature environment

Info

Publication number: CN214274112U
Application number: CN202023098940.9U
Authority: CN
Inventors: 王峥; 高利强
Original assignee: Beijing Aopu Star Technology Co ltd
Current assignee: Beijing Aopu Star Technology Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-09-24
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a cylinder protector for low temperature environment, including the protection cloth cover, the protection cloth cover contains protection cloth one, protection cloth two, protection cloth three, protection cloth one, protection cloth two, protection cloth three sets gradually the inlayer at the protection cloth cover, the intermediate level, outer department, the protection cloth cover sets up on the cylinder front end lid, the cylinder front end lid sets firmly the front end at the cylinder base member, the rear end of protection cloth cover passes through flange one and is connected with the cylinder front end lid, be provided with the cavity in the cylinder base member, sliding connection has the piston rod in the cavity, the front end of protection cloth cover passes through flange two and links to each other with the piston rod, be provided with lubricated fat layer on the outer wall of piston rod, protection cloth one, protection cloth two, all be provided with between three two liang of protection cloth and press the glue film. The utility model provides a cylinder protector for low temperature environment, this kind of protector simple structure, sealing performance is good, can use in cylinder or pneumatic cylinder to can be in the long-term non-maintaining steady operation in severe cold area.

Description

Cylinder protection device for low-temperature environment

Technical Field

The utility model relates to an engineering machine tool technical field particularly, relates to a cylinder protector for low temperature environment.

Background

In engineering machinery, a telescopic structure is most common in a cylinder and an oil cylinder, the cylinder and the oil cylinder are widely used in various mechanical equipment, the structure is simple, the performance is reliable, and under the normal use condition, even if the service life is too long and the phenomena of oil leakage and air leakage occur, the sealing element is only required to be replaced to take a new look.

The reason that oil leakage and air leakage occur to the air cylinder and the oil cylinder is that most piston rods are scratched or movable sealing rings are damaged. After the piston rod extends out for a long time, ice is formed on the piston rod, and the piston rod can scratch and wear the sealing ring during retraction, which is common in cold regions. In northwest alpine regions, a large number of oil cylinders and air cylinders are used by engineering machinery and carrying vehicles, and particularly when the environment humidity is high, the temperature difference between day and night is large, and the air temperature changes from 0 ℃, frost is easy to form on a piston rod, and a sealing element is easy to damage without protection or deicing treatment. Oil cylinder and air cylinder used by engineering machinery and carrying vehicles are exposed outside and easy to overhaul and maintain, so that when the phenomenon of frost formation occurs, the oil cylinder and air cylinder are usually scrubbed and maintained manually.

However, in some special application occasions, the working environment of the oil cylinder and the air cylinder is severe, the dust is large, the water vapor is large, the temperature is low, the piston rod is easy to freeze, manual inspection and maintenance are inconvenient, or the mounting position of the cylinder body is inconvenient to overhaul, and at the moment, a special structure is needed to ensure the long-term maintenance-free stable work of the oil cylinder and the air cylinder.

SUMMERY OF THE UTILITY MODEL

To the problem among the correlation technique, the utility model provides a cylinder protector for low temperature environment solves current engineering machine tool, and the cylinder is than relatively poor under low temperature environment's leakproofness, is difficult for maintaining the problem of steady operation.

In order to achieve the technical purpose, the technical scheme of the utility model is as follows:

the design provides a cylinder protector for low temperature environment, including protection cloth cover, protection cloth cover contains protection cloth one, protection cloth two, protection cloth three, protection cloth one, protection cloth two, protection cloth three set gradually inlayer, intermediate level, the outer department of protection cloth cover, protection cloth cover sets up on the cylinder front end lid, the cylinder front end lid sets firmly the front end at the cylinder base member, the rear end of protection cloth cover pass through flange one with the cylinder front end lid is connected, be provided with the cavity in the cylinder base member, sliding connection has the piston rod in the cavity, the front end of protection cloth cover pass through flange two with the piston rod links to each other, be provided with the lubricated fat layer on the outer wall of piston rod, protection cloth one, protection cloth two, protection cloth three all are provided with between two liang of adjacent and press the glue film.

Further, the first protective cloth and the third protective cloth are both oil-proof and waterproof cloth, and the second protective cloth is Kevlar bulletproof cloth.

Furthermore, a nut is connected between the second flange and the piston rod.

Further, a sealing ring is arranged between the protective cloth sleeve and the front end cover of the cylinder.

Further, the material of the lubricating grease layer is low-temperature lubricating grease.

The utility model has the advantages that: the cylinder protection device for the low-temperature environment can be applied to a hydraulic cylinder, when the cylinder protection device is used, the piston rod and the front end cover movable sealing ring are completely isolated from the outside by the protection cloth sleeve, the piston rod and the front end cover movable sealing ring are protected from being influenced by external dust and water vapor, the piston rod does not have water vapor and is not frozen at low temperature, accordingly, the piston rod and the sealing ring are protected from being prematurely damaged due to icing, and the long-term maintenance-free stable work of the cylinder in a severe cold area is guaranteed. After the protection device is installed on the common cylinder, the common cylinder has the key performances of dust prevention, water prevention, rust prevention and low temperature resistance, and is combined with a low temperature resistant sealing element, so that the common cylinder can replace a part of expensive special cylinders to use, and a large amount of cost is saved. The protective device is also suitable for the special protection requirements of a part of common cylinders in use due to the change of the working environment, and can be conveniently added and transformed, so that the common cylinders can be continuously used in certain special environments.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a cylinder guard for a low temperature environment according to an embodiment of the present invention when retracted;

FIG. 2 is an enlarged fragmentary view of a section of the protective cloth cover of FIG. 1 at A;

fig. 3 is a schematic structural view of a cylinder protector for low temperature environment according to an embodiment of the present invention when extended;

in the figure: 1. a protective cloth cover; 2. a first protective cloth; 3. a second protective cloth; 4. protecting cloth III; 5. a first flange; 6. an oil cylinder; 7. a second flange; 8. a piston rod; 9. a nut; 10. a lubricating grease layer.

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 all belong to the protection scope of the present invention.

As shown in figure 1, according to the embodiment of the utility model provides a cylinder protector for low temperature environment, including protection cloth cover 1, protection cloth cover 1 contains protection cloth 2, protection cloth two 3, protection cloth three 4, protection cloth 2, protection cloth two 3, protection cloth three 4 set gradually the inlayer of protection cloth cover 1, intermediate level, outer department, protection cloth cover 1 sets up on the cylinder front end lid, the cylinder front end lid sets firmly the front end at the cylinder base member, the rear end of protection cloth cover 1 through flange one 5 with the cylinder front end lid is connected, be provided with the cavity in the cylinder base member, sliding connection has piston rod 8 in the cavity, the front end of protection cloth cover 1 through flange two 7 with piston rod 8 links to each other, be provided with lubricating grease layer 10 on the outer wall of piston rod 8, protection cloth 2, protection cloth two 3, And a pressure glue layer is arranged between every two adjacent three 4 pieces of protective cloth.

As shown in fig. 1-2, in this embodiment, the first protective cloth 2 and the third protective cloth 4 are both oil-proof and water-proof cloth, the second protective cloth 3 is kevlar bulletproof cloth, and is formed by multilayer overlapping sewing, and the seam of the sewing thread is processed by glue pressing, so that the device structure is more stable and has the characteristics of water and oil resistance.

As shown in fig. 1 and 3, in this embodiment, a nut 9 is connected between the second flange 7 and the piston rod 8, so that the stability of the connection of the device can be increased.

As shown in fig. 1, in this embodiment, a sealing ring is disposed between the protective cloth cover 1 and the cylinder front end cover, so as to increase the sealing performance of the device.

As shown in fig. 1, in the present embodiment, the grease layer 10 is made of low temperature grease, which has a low temperature lubrication effect and can reduce the friction force when the piston rod 8 moves.

In order to facilitate further understanding of the above technical solutions, the structural working principle is now explained:

as shown in fig. 1-3, the cylinder protection device for low temperature environment is provided with a threaded hole on the front end cover of the cylinder, a protection cloth cover 1 is connected with the front end cover of the cylinder by using a flange, and the other end of the protection cloth cover 1 is also connected with the end of the piston rod 8 by the flange. The protective cloth cover 1 is formed by overlapping and sewing a plurality of layers of protective cloth I2, protective cloth II 3 and protective cloth III 4, the seam of the sewing line is processed by pressing glue, the inner layer of the protective cloth cover 1 can be made of oil-proof waterproof cloth, the middle part of the protective cloth cover is made of Kevlar bulletproof cloth, and the outer layer of the protective cloth cover is made of oil-proof waterproof cloth. Has the characteristics of oil tightness, water tightness and weak air permeability, and is soft and durable. After the protective cloth sleeve 1 is installed, a gap is reserved between the protective cloth sleeve and the piston rod 8, and a certain amount of lubricating grease layer 10 is filled in the gap. A low-temperature lubricating grease layer can be adopted, has high viscosity and can block the micro air holes of the protective cloth cover 1. When the piston rod 8 is completely retracted, the protective cloth sleeve 1 is in a compressed state, and the protective cloth sleeve 1 is expanded and bulged by the lubricating grease layer 10 filled in the protective cloth sleeve; after piston rod 8 stretches out, protection cloth cover 1 is in the state of extending gradually, and the lubricating grease layer 10 that inside filled is embraced on piston rod 8 by the parcel, no matter piston rod 8 like this retracts or stretches out, and piston rod 8 all keeps apart with the external world, and protection piston rod 8 and front end cover move the sealing ring and do not receive the influence of external dust, are wrapping up lubricating grease layer 10 on piston rod 8 constantly, and steam also hardly invades, does not have steam, the low piston rod 8 of temperature can not also freeze the frost. Even after long-term use, the tightness of the protective cloth cover 1 is reduced, a part of water vapor penetrates, and frost cannot be attached to the piston rod 8 which is full of the lubricating grease layer 10. Thereby, the piston rod 8 and the sealing ring are protected from being prematurely damaged due to the influence of the external environment, and the long-term maintenance-free stable work of the cylinder is ensured.

When the protective cloth sleeve is used, when a piston rod 8 of the oil cylinder 6 contracts, the protective cloth sleeve 1 contracts into a corrugated pipe shape, the lubricating grease layer 10 inside the protective cloth sleeve moves in the radial direction, the protective cloth sleeve 1 is separated from the piston rod 8, and friction damage is prevented. When the piston rod 8 extends out, the protective cloth sleeve 1 can contract inwards due to the fact that the volume of the lubricating grease layer 10 in the protective cloth sleeve 1 is fixed, and the lubricating grease layer 10 in the protective cloth sleeve is ensured to be evenly distributed along the axial direction. Because the lubricating grease layer 10 is arranged around the piston rod 8 all the time, the oil seal of the oil cylinder 6 is prevented from being damaged by external dust and moisture, and the piston rod 8 is lubricated.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

It is noted that, in this document, relational terms such as "component" a "and" component "and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The cylinder protection device for the low-temperature environment is characterized by comprising a protection cloth sleeve (1), wherein the protection cloth sleeve (1) comprises a first protection cloth (2), a second protection cloth (3) and a third protection cloth (4), the first protection cloth (2), the second protection cloth (3) and the third protection cloth (4) are sequentially arranged at the inner layer, the middle layer and the outer layer of the protection cloth sleeve (1), the protection cloth sleeve (1) is arranged on a cylinder front end cover, the cylinder front end cover is fixedly arranged at the front end of a cylinder base body, and the rear end of the protection cloth sleeve (1) is connected with the cylinder front end cover through a first flange (5); the novel protective cloth is characterized in that a cavity is formed in the cylinder base body, a piston rod (8) is connected in the cavity in a sliding mode, the front end of the protective cloth sleeve (1) is connected with the piston rod (8) through a second flange (7), a lubricating grease layer (10) is arranged on the outer wall of the piston rod (8), and glue pressing layers are arranged between every two adjacent protective cloth I (2), protective cloth II (3) and protective cloth III (4).

2. The cylinder protection device for the low-temperature environment according to claim 1, wherein the first protection cloth (2) and the third protection cloth (4) are both oil-proof and waterproof cloth, and the second protection cloth (3) is Kevlar bulletproof cloth.

3. The cylinder guard for low temperature environment according to claim 1, characterized in that a nut (9) is connected between the second flange (7) and the piston rod (8).

4. The cylinder protection device for the low-temperature environment according to claim 1, characterized in that a sealing ring is arranged between the protection cloth cover (1) and the cylinder front end cover.

5. A cylinder guard for use in low temperature environments in accordance with claim 1, characterized by that the grease layer (10) is made of low temperature grease.