Sealing ring for loading machine

Abstract

The utility model provides a sealing ring for a loading machine, which belongs to the technical field of sealing rings and comprises a sealing ring body, one side of the sealing ring body is provided with a first annular bulge and a second annular bulge, the first annular bulge and the second annular bulge are arranged side by side, and the end face of the first annular bulge is provided with a plurality of first bulges. Gaps generated after the sealing ring vibrates for a long time can be reduced, the sealing performance of the sealing ring is improved, and the service life of the sealing ring is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing rings, and particularly relates to a sealing ring for a loader. Background Art

[0002] There are various hydraulic devices on a loader, and sealing rings need to be provided at the joints of the hydraulic devices to ensure the normal operation of the hydraulic devices. At present, most of the sealing rings are in the form of O-ring seals or lip seals. The surface of this kind of sealing ring is smooth. Although the contact area with the parts is large, the pressure after fitting is small. The loader often works in a harsh environment. After a long time of vibration, gaps will be generated in this kind of sealing ring, thus reducing the sealing performance. Content of the Utility Model

[0003] Aiming at the defects or deficiencies in the prior art, the utility model provides a sealing ring for a loader, which can reduce the generation of gaps in the sealing ring after long-term vibration, and improve the sealing performance and service life of the sealing ring.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] An embodiment of the utility model provides a sealing ring for a loader, including a sealing ring body. A first annular protrusion and a second annular protrusion are arranged on one side of the sealing ring body. The first annular protrusion and the second annular protrusion are arranged side by side. A plurality of first protrusions are arranged on the end surface of the first annular protrusion.

[0006] Further, the outer wall of the sealing ring body is a planar structure, and the inner wall of the sealing ring body is a concave arc structure.

[0007] Further, a set distance is provided between the first annular protrusion and the second annular protrusion. An annular groove is formed between the first annular protrusion and the second annular protrusion. The cross section of the annular groove is rectangular.

[0008] Further, the first annular protrusion is arranged close to the outer wall of the sealing ring body, and the first annular protrusion is arranged close to the inner wall of the sealing ring body.

[0009] Further, a plurality of first protrusions are evenly distributed along the circumferential direction of the sealing ring body, and a set distance is provided between adjacent two first protrusions.

[0010] Further, a plurality of first protrusions all extend along the axial direction of the sealing ring body.

[0011] Further, a third annular protrusion is arranged on the side of the sealing ring body away from the annular groove. The third annular protrusion is arranged close to the inner wall of the sealing ring body.

[0012] Further, the outer diameter of the third annular protrusion is smaller than the outer wall diameter of the sealing ring body, so that a stepped structure is formed between the third annular protrusion and the outer wall of the sealing ring body.

[0013] Further, on one side of the inner wall of the sealing ring body close to the third annular protrusion, a second protrusion is provided. There are a plurality of the second protrusions, and the plurality of second protrusions are evenly distributed along the circumferential direction of the sealing ring body, and a set distance is provided between adjacent two second protrusions.

[0014] Further, the plurality of second protrusions all extend towards the axis of the sealing ring body.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] In the present utility model, a first annular protrusion and a second annular protrusion are provided on one side of the sealing ring body, and a plurality of first protrusions are provided on the end surface of the first annular protrusion. When the sealing ring body is placed between two assemblies and the sealing ring body is squeezed, the setting of the first protrusions can provide sufficient squeezing space, ensure that the sealing ring body generates sufficient deformation, thereby reducing the gap generated after the sealing ring vibrates for a long time, and further ensuring the sealing performance and service life of the sealing ring body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the sealing ring in the embodiment of the present utility model;

[0018] Figure 2 is a cross-sectional view of the sealing ring in the embodiment of the present utility model;

[0019] Wherein, 1, sealing ring body; 2, first annular protrusion; 3, second annular protrusion; 4, annular groove; 5, first protrusion; 6, third annular protrusion; 7, second protrusion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0021] A typical implementation manner of the present utility model is as Figure 1 and Figure 2As shown in the figure, a sealing ring for a loader includes a sealing ring body 1. The outer wall of the sealing ring body 1 is a planar structure, and the inner wall of the sealing ring body 1 is a concave arc structure. One side of the sealing ring body 1 is provided with a first annular protrusion 2 and a second annular protrusion 3. The first annular protrusion 2 and the second annular protrusion 3 are arranged side by side. The first annular protrusion 2 is arranged close to the outer wall of the sealing ring body 1, and the second annular protrusion 3 is arranged close to the inner wall of the sealing ring body 1. There is a set distance between the first annular protrusion 2 and the second annular protrusion 3. An annular groove 4 is formed between the first annular protrusion 2 and the second annular protrusion 3. The cross-section of the annular groove 4 is rectangular. Thus, when the sealing ring body 1 is extruded, by setting the annular groove 4, the sealing ring body 1 has sufficient deformation space, thereby ensuring the sealing performance of the sealing ring body 1 and improving the service life of the sealing ring body 1 at the same time.

[0022] A first protrusion 5 is arranged on the end surface of the first annular protrusion 2. There are multiple first protrusions 5, and the multiple first protrusions 5 are evenly distributed along the circumferential direction of the sealing ring body 1. The multiple first protrusions 5 extend along the axial direction of the sealing ring body 1, and the distance between adjacent two first protrusions 5 is a set distance.

[0023] By arranging the first protrusion 5 on the end surface of the first annular protrusion 2, when the sealing ring body 1 is placed between two assemblies and the sealing ring body 1 is extruded, the arrangement of the first protrusion 5 can provide sufficient extrusion space, ensure that the sealing ring body 1 generates sufficient deformation, thereby reducing the gap generated by the sealing ring body 1 after long-term vibration, and further ensuring the sealing performance and service life of the sealing ring body 1.

[0024] A third annular protrusion 6 is arranged on the side of the sealing ring body 1 away from the annular groove 4. The third annular protrusion 6 is arranged close to the inner wall of the sealing ring body 1. The third annular protrusion 6 and the outer wall of the sealing ring body 1 form a stepped structure, that is, the outer diameter of the third annular protrusion 6 is smaller than the outer diameter of the outer wall of the sealing ring body 1, so that the third annular protrusion 6 can be stuck in the groove on the end surface of the assembly, thereby positioning the sealing ring body 1.

[0025] A second protrusion 7 is arranged on the side of the inner wall of the sealing ring body 1 close to the third annular protrusion 6. There are multiple second protrusions 7, and the multiple second protrusions 7 are evenly distributed along the circumferential direction of the sealing ring body 1. The multiple second protrusions 7 all extend towards the axis of the sealing ring body 1, and the distance between adjacent two second protrusions 7 is a set distance.

[0026] When the third annular protrusion 6 is placed in the groove of the assembly, the second protrusion 7 is also placed in the groove of the assembly. When the sealing ring body 1 is extruded, the arrangement of the second protrusion 7 can provide sufficient extrusion space, ensure that the sealing ring body 1 generates sufficient deformation, and then fill the groove, thereby ensuring the sealing performance of the sealing ring body 1.

[0027] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A seal ring for a loader, characterized in that, It includes a sealing ring body. On one side of the sealing ring body, there are a first annular protrusion and a second annular protrusion. The first annular protrusion and the second annular protrusion are arranged side by side. On the end face of the first annular protrusion, there are multiple first protrusions.

2. The sealing ring for a loader according to claim 1, wherein, The outer wall of the sealing ring body is a planar structure, and the inner wall of the sealing ring body is a concave arc structure.

3. The sealing ring for a loader according to claim 1, characterized in that, There is a set distance between the first annular protrusion and the second annular protrusion. An annular groove is formed between the first annular protrusion and the second annular protrusion. The cross-section of the annular groove is rectangular.

4. The sealing ring for a loader according to claim 1, wherein, The first annular protrusion is arranged close to the outer wall of the sealing ring body and also close to the inner wall of the sealing ring body.

5. The sealing ring for a loader according to claim 1, wherein, The multiple first protrusions are evenly distributed along the circumferential direction of the sealing ring body, and the distance between adjacent two first protrusions is a set distance.

6. The sealing ring for a loader according to claim 1, characterized in that, The multiple first protrusions all extend along the axial direction of the sealing ring body.

7. The sealing ring for a loader according to claim 1, wherein, On the side of the sealing ring body away from the annular groove, there is a third annular protrusion. The third annular protrusion is arranged close to the inner wall of the sealing ring body.

8. The sealing ring for a loader according to claim 7, characterized in that, The outer diameter of the third annular protrusion is smaller than the outer diameter of the sealing ring body, so that a stepped structure is formed between the third annular protrusion and the outer wall of the sealing ring body.

9. The sealing ring for a loader according to claim 7, wherein, On the side of the inner wall of the sealing ring body close to the third annular protrusion, there are second protrusions. There are multiple second protrusions. The multiple second protrusions are evenly distributed along the circumferential direction of the sealing ring body, and the distance between adjacent two second protrusions is a set distance.

10. A sealing ring for a loader as described in claim 9, characterized in that, The multiple second protrusions all extend towards the axis of the sealing ring body.

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