CN217898777U - Cylinder composite dust-proof ring for hydraulic cylinder - Google Patents

Abstract

The utility model relates to a dust ring technical field just discloses a compound dust ring of cylinder that pneumatic cylinder was used, including dust ring one, the mounting groove has been seted up to dust ring one inside, mounting groove inner wall and two one side fixed connection of dust ring, the diameter size of mounting groove is the same with the diameter size of dust ring two, the material of dust ring one is the rubber material, rubber is selected from one of butadiene acrylonitrile rubber, silicon rubber, fluororubber, dust ring two is made by polyurethane, the dirty ring is received to one inside being provided with of dust ring, the material of receiving dirty ring is the rubber material, the material hardness of receiving dirty ring is higher than dust ring one, has realized effectively preventing that metallic impurity from getting into pneumatic cylinder internal damage inside seal to can collect metallic impurity, avoided causing the condition of oil leak of whole device to lead to unable work, improved the life of pneumatic cylinder.

Description

Cylinder composite dust-proof ring for hydraulic cylinder

technical field

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

Background technique

Depending on the environment in which the oil cylinder or cylinder is used, it will inevitably be polluted by external "dirt" and affect the service life of the oil cylinder or cylinder. These "dirt" include dust, sand, rain, frost, contaminated oil and Corrosion particles, etc. In order to prevent external dirt, especially corrosive particles, from entering the sealing mechanism and protect the service life of the guide parts and seals, simple and practical dust-proof rings are generally used at present, which can be divided into single-acting and double-acting according to their functions; The structure of its dustproof components can be divided into single lip and double lip; according to the material, it can be divided into single material, rubber armor, and composite dust ring.

According to the Chinese patent CN208089680U, a hydraulic cylinder cylinder composite dust-proof ring is disclosed. It is a rubber dust-proof ring, and the hard dirt-receiving ring is embedded in the rubber dust-proof ring on the right; the composite dust-proof ring is installed on the outermost layer of the cylinder near the end of the piston rod, and its inner cavity is matched with the piston rod, and the outer wall is embedded in the cylinder . The hydraulic cylinder cylinder composite dustproof ring has the characteristics of simple structure, low manufacturing and maintenance costs, convenient use, reliability and high efficiency.

However, when the dust-proof ring is in use, the piston rod will produce a lot of metal impurities such as iron filings after working for a long time, which will easily cause damage to the dust-proof ring, and the metal impurities will enter the cylinder and damage the internal seal, causing the entire device to break down. In case of oil leakage, resulting in failure to work, thereby reducing the service life of the hydraulic cylinder.

Utility model content

The purpose of the utility model is to provide a composite air cylinder dustproof ring for a hydraulic cylinder, which solves the above-mentioned problems in the background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a cylinder composite dust-proof ring for hydraulic cylinders, including a dust-proof ring 1, an installation groove is opened inside the dust-proof ring 1, and the inner wall of the installation groove is connected to the dust-proof ring. The second side of the dust ring is fixedly connected, the diameter of the installation groove is the same as that of the second dust ring, and the material of the first dust ring is rubber, and the rubber is selected from nitrile rubber, silicon rubber, fluorine One of the rubbers, the second dust seal is made of polyurethane.

Preferably, a dirt-receiving ring is provided inside the first dust-proof ring, and the material of the dirt-receiving ring is rubber, and the hardness of the material of the dirt-receiving ring is higher than that of the first dust-proof ring.

Preferably, the first surface of the dust-proof ring is provided with wear-resistant grooves, and the number of the wear-resistant grooves is several, which can increase the service life of the dust-proof ring 1 and reduce maintenance times and costs.

Preferably, grooves are opened on the surface of the dirt-receiving ring, the number of the grooves is several, and the diameter of each groove is the same, which can effectively collect metal impurities.

Preferably, the diameter of the second dust-proof ring is half that of the first dust-proof ring.

Preferably, the diameter of the first dust-proof ring is twice as large as that of the dirt-holding ring, and the thickness of the first dust-proof ring is larger than that of the dirt-holding ring.

Preferably, the first dustproof ring is located at the outermost side of the hydraulic cylinder.

The utility model provides a cylinder composite dustproof ring for a hydraulic cylinder. The cylinder composite dust-proof ring for the hydraulic cylinder has the following beneficial effects:

(1) In this utility model: the cylinder composite dust-proof ring for the hydraulic cylinder can effectively prevent metal impurities from entering the hydraulic cylinder and damage the internal seal by installing dirt-receiving rings and grooves, and can collect metal impurities. Avoiding the oil leakage of the whole device, resulting in failure to work, and improving the service life of the hydraulic cylinder;

(2) In the utility model: the cylinder compound dust-proof ring that this hydraulic cylinder is used realizes that can improve the service life and the intensity of dust-proof ring one by installing dust-proof ring one, dust-proof ring two, wear-resisting groove, thereby can It will not be easily damaged, effectively reducing the number of repairs and costs.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the utility model device;

Fig. 2 is a schematic structural view of a dustproof ring of the present invention;

FIG. 3 is a structural schematic diagram of the dirt receiving ring 4 of the present invention.

In the figure: dust-proof ring one 1, dust-proof ring two 2, wear-resistant groove 3, dirt-holding ring 4, groove 5.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Examples of the described embodiments are shown in the drawings, wherein like or similar reference numerals designate like or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

As shown in Figures 1-3, the utility model provides a technical solution: a cylinder composite dust-proof ring for a hydraulic cylinder, including a dust-proof ring-1, and a mounting groove is opened inside the dust-proof ring-1, and the inner wall of the mounting groove It is fixedly connected to one side of the dustproof ring 2, and the diameter of the installation groove is the same as that of the dustproof ring 22. The material of the dustproof ring 11 is rubber, and the rubber is selected from nitrile rubber, silicone rubber, and fluororubber One of them, dust-proof ring 2 2 is made of polyurethane, and dust-proof ring 1 is provided with a dirt-receiving ring 4 inside. The material hardness of 1 is high, and the surface of the dustproof ring 1 is provided with wear-resistant grooves 3, and the number of wear-resistant grooves 3 is several. The surface of the dirt-receiving ring 4 is provided with grooves 5, and the number of grooves 5 is several. The diameter of a groove 5 is the same, the diameter of the dustproof ring 2 is half of the diameter of the dustproof ring 1, and the diameter of the dustproof ring 1 is twice as large as the diameter of the dirt receiving ring 4. The thickness of the ring 1 is larger than that of the dirt-receiving ring 4, and the dust-proof ring 1 is located on the outermost side of the hydraulic cylinder, which can effectively prevent metal impurities from entering the hydraulic cylinder and damage the internal seal, and can collect metal impurities to avoid In order to cause oil leakage in the entire device, resulting in failure to work, improve the service life of the hydraulic cylinder, and realize the ability to improve the service life and strength of the dust-proof ring 1, so that it will not be easily damaged and effectively reduce maintenance. frequency and cost.

When the cylinder composite dust-proof ring for the hydraulic cylinder is in use, the composite dust-proof ring is placed directly on the outermost layer of the hydraulic cylinder. The service life of the dust-proof ring 1 is improved, and the strength of the dust-proof ring 1 can be improved by installing the dust-proof ring 2 inside the dust-proof ring 1, so that it will not be easily damaged. When the dust-proof ring 1 appears When damaged, when the hydraulic cylinder is working, metal impurities will pass through the dust-proof ring 1 and enter the dirt-receiving ring 4, and the metal impurities can be effectively collected by opening the groove 5 on the surface of the dirt-receiving ring 4 to avoid metal impurities Entering into the hydraulic cylinder to damage the internal seal, finally, it can effectively prevent the metal impurities from entering the hydraulic cylinder to damage the internal seal, and can collect the metal impurities, avoiding the situation of oil leakage in the whole device, resulting in failure to work, The service life of the hydraulic cylinder is improved, and the service life and strength of the dust-proof ring 1 can be improved, so that damage will not occur easily, and the maintenance times and costs are effectively reduced.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (7)

1. A cylinder composite dust-proof ring for hydraulic cylinders, comprising a dust-proof ring one (1), characterized in that: the inside of the dust-proof ring one (1) is provided with a mounting groove, and the inner wall of the mounting groove is in contact with the dust-proof ring. One side of the ring two (2) is fixedly connected, the diameter of the installation groove is the same as that of the dust-proof ring two (2), and the material of the dust-proof ring one (1) is rubber, and the rubber is selected from One of nitrile rubber, silicon rubber, and fluororubber, and the second (2) of the dust seal is made of polyurethane. 2. The cylinder compound dustproof ring for a hydraulic cylinder according to claim 1, characterized in that: said dustproof ring one (1) is internally provided with a dirt holding ring (4), said dirt holding ring ( 4) is made of rubber, and the material hardness of the dirt-receiving ring (4) is higher than that of the dust-proof ring one (1). 3. A cylinder composite dust-proof ring for a hydraulic cylinder according to claim 1, wherein a wear-resistant groove (3) is provided on the surface of said dust-proof ring (1), and said wear-resistant groove ( 3) The number is several. 4. A cylinder composite dust-proof ring for a hydraulic cylinder according to claim 2, characterized in that: the surface of the dirt-receiving ring (4) is provided with a groove (5), and the groove (5) The number is several, and the diameter of each groove (5) is the same. 5. A cylinder compound dustproof ring for a hydraulic cylinder according to claim 1, wherein the diameter of the second dustproof ring (2) is half that of the first dustproof ring (1). 6. A cylinder composite dust-proof ring for a hydraulic cylinder according to claim 1, characterized in that: the diameter of the dust-proof ring one (1) is twice as large as the diameter of the dirt-receiving ring (4) , the thickness of the dustproof ring one (1) is larger than the thickness of the dirt receiving ring (4). 7. The cylinder compound dustproof ring for hydraulic cylinder according to claim 1, characterized in that: said dustproof ring one (1) is located at the outermost side of the hydraulic cylinder.

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