Oil seal structure facilitating heat dissipation

Abstract

The utility model relates to the technical field of oil seals, in particular to an oil seal structure convenient for heat dissipation, which comprises a dynamic rubber sealing ring, a metal framework fixedly sleeved outside the dynamic rubber sealing ring, a static sealing component fixedly connected onto the metal framework, and a heat dissipation groove arranged on the metal framework. A first sealing lip and a second sealing lip are fixedly connected to the inner wall of the dynamic rubber sealing ring. A pressing structure used for applying pressure to the second sealing lip is installed on the dynamic rubber sealing ring. When the dynamic rubber sealing ring is arranged on a shaft of machinery equipment in a sleeving manner, pressure is applied to the second sealing lip through the pressing structure, so that the second sealing lip is tightly attached to the shaft, the possibility of deformation of the second sealing lip is reduced, and the oil sealing and dust prevention effects are improved.

Description

Technical Field

[0001] This utility model relates to the field of oil seal technology, and in particular to an oil seal structure that facilitates heat dissipation. Background Technology

[0002] An oil seal is a mechanical component used to seal oil. It isolates the lubricated parts of a transmission system from the output parts, preventing lubricant leakage and blocking external dust from entering the lubricated components, thus providing internal oil sealing and external dust protection. For shaft components used in outdoor environments, oil seals need to provide even better sealing and dust protection. However, it's worth noting that during use, the oil seal lip rubs against the shaft, and over time, it can deform, affecting its sealing and dust-proofing effects. Utility Model Content

[0003] In view of this, the purpose of this utility model is to propose an oil seal structure that facilitates heat dissipation, so as to solve the problem that the oil seal lip rubs against the shaft and is prone to deformation over time, affecting the sealing and dust prevention effects.

[0004] To achieve the above objectives, this utility model provides an oil seal structure that facilitates heat dissipation, including a dynamic rubber sealing ring. A metal frame is fixedly fitted around the outside of the dynamic rubber sealing ring, and a static sealing component is fixedly connected to the metal frame. A heat dissipation groove is provided on the metal frame. A first sealing lip and a second sealing lip are fixedly connected to the inner wall of the dynamic rubber sealing ring, and a pressing structure for applying pressure to the second sealing lip is installed on the dynamic rubber sealing ring.

[0005] Preferably, the pressing structure includes several extrusion strips fixedly installed on the dynamic rubber sealing ring. The dynamic rubber sealing ring has an annular groove, and the extrusion ring is slidably disposed in the annular groove. The extrusion strips are located on the side of the extrusion ring away from the first sealing lip. The distance between the extrusion strips and the axis of the dynamic rubber sealing ring is less than the radius of the inner ring of the second sealing lip. The outer ring of the second sealing lip has an inclined surface that matches the inner wall of the extrusion ring.

[0006] Preferably, a plurality of circumferentially evenly distributed barrier strips are fixedly connected to the side of the first sealing lip away from the second sealing lip.

[0007] Preferably, the dynamic rubber sealing ring has an annular groove, and a spring is provided inside the annular groove.

[0008] Preferably, a plurality of positioning parts are fixedly connected to the metal frame.

[0009] Preferably, the static sealing component includes a static rubber sealing ring fixedly installed on a metal frame, and an outer diameter protrusion ring is fixedly connected to the side of the static rubber sealing ring away from the metal frame.

[0010] Preferably, a plurality of heat dissipation plates are fixedly connected inside the heat dissipation groove.

[0011] The beneficial effects of this utility model are as follows: the heat dissipation grooves on the metal frame improve the heat dissipation effect of the metal frame; the design of the first sealing lip prevents external dust or other impurities from entering the machine equipment; when the dynamic rubber sealing ring is sleeved on the shaft of the machine equipment, pressure is applied to the second sealing lip through the pressing structure to make the second sealing lip fit tightly against the shaft, reducing the possibility of deformation of the second sealing lip and increasing the oil sealing and dust prevention effect. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is one of the overall structural schematic diagrams of an embodiment of the present utility model;

[0014] Figure 2 This is the second schematic diagram of the overall structure of an embodiment of this utility model;

[0015] Figure 3 This is a schematic diagram of the metal skeleton structure of an embodiment of the present invention;

[0016] Figure 4 This utility model Figure 3 A magnified structural diagram of region A in the middle.

[0017] The diagram is marked as follows:

[0018] 1. Dynamic rubber sealing ring; 2. Metal skeleton; 3. First sealing lip; 4. Second sealing lip; 5. Annular groove; 6. Extrusion ring; 7. Extrusion strip; 8. Annular groove; 9. Spring; 10. Barrier strip; 11. Positioning part; 12. Static rubber sealing ring; 13. Heat sink; 14. Heat sink groove; 15. Outer diameter convex ring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] This specification provides one or more embodiments of an oil seal structure that facilitates heat dissipation, such as... Figure 1 , Figure 3 and Figure 4 As shown, the device includes a dynamic rubber sealing ring 1, with a metal frame 2 fixedly fitted around its exterior. A static sealing component is fixedly connected to the metal frame 2, and a heat dissipation groove 14 is provided on the metal frame 2. A first sealing lip 3 and a second sealing lip 4 are fixedly connected to the inner wall of the dynamic rubber sealing ring 1, respectively. A pressing structure for applying pressure to the second sealing lip 4 is installed on the dynamic rubber sealing ring 1. The heat dissipation groove 14 on the metal frame 2 improves the heat dissipation effect of the metal frame 2. The design of the first sealing lip 3 prevents external dust or other impurities from entering the interior of the machine. When the dynamic rubber sealing ring 1 is fitted onto the shaft of the machine, the pressing structure applies pressure to the second sealing lip 4 to make the second sealing lip 4 fit tightly against the shaft, reducing the possibility of deformation of the second sealing lip 4 and increasing the sealing and dust prevention effects.

[0022] In embodiments of this utility model, such as Figure 2 and Figure 3As shown, the pressing structure includes several extrusion strips 7 fixedly installed on the dynamic rubber sealing ring 1. The dynamic rubber sealing ring 1 has an annular groove 5, within which an extrusion ring 6 slides. The extrusion strips 7 are located on the side of the extrusion ring 6 away from the first sealing lip 3. The distance between the extrusion strips 7 and the axis of the dynamic rubber sealing ring 1 is less than the radius of the inner ring of the second sealing lip 4. The outer ring of the second sealing lip 4 has an inclined surface adapted to the inner wall of the extrusion ring 6. Several evenly distributed circumferentially spaced strips are fixedly connected to the side of the first sealing lip 3 away from the second sealing lip 4. The barrier strip 10; because the distance between the extrusion strip 7 and the axis of the dynamic rubber sealing ring 1 is less than the radius of the inner ring of the second sealing lip 4, when the dynamic rubber sealing ring 1 is sleeved on the outside of the shaft, the second sealing lip 4 abuts against the shaft, and the shaft drives the extrusion strip 7 to tilt through friction. The extrusion strip 7 pushes the extrusion ring 6 to move, and the extrusion ring 6 applies pressure to the second sealing lip 4 through the tilted surface, so that the second sealing lip 4 is tightly attached to the shaft. Through the design of the barrier strip 10, the barrier strip 10 blocks larger impurities from entering between the first sealing lip 3 and the shaft.

[0023] In embodiments of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the dynamic rubber sealing ring 1 has an annular groove 8, and a spring 9 is installed in the annular groove 8. Several positioning parts 11 are fixedly connected to the metal frame 2. The static sealing component includes a static rubber sealing ring 12 fixedly installed on the metal frame 2. An outer diameter convex ring 15 is fixedly connected to the side of the static rubber sealing ring 12 away from the metal frame 2. Several heat dissipation plates 13 are fixedly connected in the heat dissipation groove 14. Through the design of the annular groove 8 and the spring 9, the spring 9 applies pressure to the dynamic rubber sealing ring 1, which further increases the sealing performance between the second sealing lip 4 and the shaft. The positioning part 11 is inserted into the positioning groove on the machine housing. Through the design of the positioning part 11, the position of the metal frame 2 is positioned. The outer diameter convex ring 15 seals the outer edge of the static rubber sealing ring 12, which improves the sealing performance. Through the cooperation of the heat dissipation plate 13 and the heat dissipation groove 14, the overall heat dissipation performance of the oil seal is improved.

[0024] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0025] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An oil seal structure facilitating heat dissipation, comprising a dynamic rubber seal ring (1), characterized in that, The dynamic rubber sealing ring (1) is externally fitted with a metal frame (2), and a static sealing component is fixedly connected to the metal frame (2). A heat dissipation groove (14) is provided on the metal frame (2). A first sealing lip (3) and a second sealing lip (4) are fixedly connected to the inner wall of the dynamic rubber sealing ring (1). A pressing structure for applying pressure to the second sealing lip (4) is installed on the dynamic rubber sealing ring (1).

2. The oil seal structure according to claim 1, wherein The pressing structure includes several extrusion strips (7) fixedly installed on the dynamic rubber sealing ring (1). The dynamic rubber sealing ring (1) has an annular groove (5). An extrusion ring (6) is slidably arranged in the annular groove (5). The extrusion strips (7) are located on the side of the extrusion ring (6) away from the first sealing lip (3). The distance between the extrusion strips (7) and the axis of the dynamic rubber sealing ring (1) is less than the radius of the inner ring of the second sealing lip (4). The outer ring of the second sealing lip (4) has an inclined surface that matches the inner wall of the extrusion ring (6).

3. The oil seal structure according to claim 1, wherein A number of circumferentially evenly distributed barrier strips are fixedly connected to the side of the first sealing lip (3) away from the second sealing lip (4).

4. The oil seal structure according to claim 1, wherein The dynamic rubber sealing ring (1) has an annular groove (8) and a spring (9) is provided in the annular groove (8).

5. The oil seal structure according to claim 1, wherein Several positioning parts (11) are fixedly connected to the metal frame (2).

6. The heat-dissipating oil seal structure according to claim 1, characterized in that, The static sealing component includes a static rubber sealing ring (12) fixedly installed on the metal frame (2), and an outer diameter protrusion ring (15) is fixedly connected to the side of the static rubber sealing ring (12) away from the metal frame (2).

7. The oil seal structure according to claim 1, wherein Several heat dissipation plates (13) are fixedly connected inside the heat dissipation groove (14).

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