Integral connecting seat type oil seal assembly

Abstract

The utility model relates to the technical field of oil seals, and discloses an integral connecting seat type oil seal assembly which comprises a metal framework, a polytetrafluoroethylene inner layer and a polytetrafluoroethylene outer layer, the polytetrafluoroethylene inner layer is arranged on the outer side of the metal framework, and the polytetrafluoroethylene outer layer is arranged on the outer side of the polytetrafluoroethylene inner layer. A dustproof lip is arranged at one end of the inner side wall of the polytetrafluoroethylene inner layer, a sealing lip is arranged at the other end of the inner side wall of the polytetrafluoroethylene inner layer, a spring retaining lip is arranged on the polytetrafluoroethylene inner layer, and a spring groove is formed in the spring retaining lip. According to the oil seal assembly, the oil inlet channel, the oil outlet channel and the sealing piston are arranged in the middle of the upper half part and the lower half part of the polytetrafluoroethylene outer layer, and the oil inlet channel, the oil outlet channel and the sealing piston are matched with one another, so that lubricating oil can be replaced conveniently under the condition that the oil seal assembly is not disassembled, and the service life of the oil seal assembly is prolonged. And the efficiency of replacing the lubricating oil is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil seals, in particular to an integral seat-connected oil seal assembly. Background Art

[0002] Oil seal is a common name for general seals, which simply means the seal of lubricating oil. It is a mechanical component used to seal grease (oil is the most common liquid substance in the transmission system, and also refers to general liquid substances). It isolates the parts that need lubrication from the output parts in the transmission parts to prevent the lubricating oil from leaking.

[0003] The existing oil seal assembly needs to be disassembled when replacing the lubricating oil, which makes it inconvenient to replace the lubricating oil and leads to low efficiency of replacing the lubricating oil. Secondly, the existing oil seal assembly usually adopts a split structure, which makes it inconvenient to install and has low installation efficiency. Therefore, there is an urgent need for an integral seat-connected oil seal assembly to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide an integral seat-connected oil seal assembly to solve the problem that the existing oil seal assembly proposed in the above background technology needs to be disassembled when replacing the lubricating oil, which makes it inconvenient to replace the lubricating oil and leads to low efficiency of replacing the lubricating oil. Secondly, the existing oil seal assembly usually adopts a split structure, which makes it inconvenient to install and has low installation efficiency.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An integral seat-connected oil seal assembly comprises a metal skeleton, a polytetrafluoroethylene inner layer and a polytetrafluoroethylene outer layer, wherein the outer side of the metal skeleton is provided with a polytetrafluoroethylene inner layer, the outer side of the polytetrafluoroethylene inner layer is provided with a polytetrafluoroethylene outer layer, one end of the inner side wall of the polytetrafluoroethylene inner layer is provided with a dustproof lip, and the other end of the inner side wall of the polytetrafluoroethylene inner layer is provided with a sealing lip, the polytetrafluoroethylene inner layer is provided with a spring retaining lip, the spring retaining lip is provided with a spring groove, a hoop spring is installed in the spring groove, a connecting seat is connected to one side of the bottom of the polytetrafluoroethylene outer layer, mounting holes are provided at both ends of the connecting seat, an oil inlet channel is provided in the middle of the upper half of the polytetrafluoroethylene outer layer, an oil outlet channel is provided in the middle of the lower half of the polytetrafluoroethylene outer layer, and one end of the oil inlet channel and the oil outlet channel are plugged with sealing pistons.

[0007] As a preferred technical solution of the utility model, both ends of the oil inlet channel and the oil outlet channel are communicated with the inner side and the outer side of the oil seal respectively.

[0008] As a preferred technical solution of the utility model, the number of the mounting holes is set to four, and the four mounting holes are arranged in pairs at both ends of the connecting seat.

[0009] As a preferred technical solution of the utility model, the two sealing pistons can be pulled out from one end of the oil inlet channel and the oil outlet channel.

[0010] As a preferred technical solution of the utility model, the oil inlet channel and the oil outlet channel are located at the upper left of the connecting seat.

[0011] As a preferred technical solution of the utility model, the diameters of the oil inlet channel and the oil outlet channel are both 5 mm.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model provides an oil inlet channel, an oil outlet channel and a sealing piston in the middle of the upper half and the lower half of the polytetrafluoroethylene outer layer, and utilizes the mutual cooperation between them to realize the replacement of lubricating oil without disassembling the oil seal assembly, making it very convenient to replace the lubricating oil and improving the efficiency of replacing the lubricating oil.

[0014] The utility model realizes a multi-layer structure by arranging a metal skeleton, a polytetrafluoroethylene inner layer and a polytetrafluoroethylene outer layer, thereby improving the structural strength of the oil seal assembly, and adopts an integrated seat-connected structure, which is easy to install and improves the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 The middle part is an enlarged structural diagram;

[0019] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0020] In the figure: 1. Metal skeleton; 2. Polytetrafluoroethylene outer layer; 3. Dustproof lip; 4. Sealing lip; 5. Spring groove; 6. Hoop spring; 7. Spring retaining lip; 8. Mounting shaft; 9. Oil outlet channel; 10. Sealing piston; 11. Oil inlet channel; 12. Connecting seat; 13. Mounting hole; 14. Polytetrafluoroethylene inner layer. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. The different types of section lines in the drawings in the embodiments of the utility model are not marked according to the national standard, nor are there any requirements for the materials of the components, but are used to distinguish the cross-sectional views of the components in the drawings.

[0022] See also Figure 1-4 An integral seat-type oil seal assembly comprises a metal skeleton 1, a polytetrafluoroethylene inner layer 14 and a polytetrafluoroethylene outer layer 2. The polytetrafluoroethylene inner layer 14 is arranged on the outer side of the metal skeleton 1, the polytetrafluoroethylene outer layer 2 is arranged on the outer side of the polytetrafluoroethylene inner layer 14, a dustproof lip 3 is arranged on one end of the inner side wall of the polytetrafluoroethylene inner layer 14, a sealing lip 4 is arranged on the other end of the inner side wall of the polytetrafluoroethylene inner layer 14, a spring retaining lip 7 is arranged on the polytetrafluoroethylene inner layer 14, a spring groove 5 is arranged at the spring retaining lip 7, a hoop spring 6 is installed in the spring groove 5, A connecting seat 12 is connected to one side of the bottom of the polytetrafluoroethylene outer layer 2, and mounting holes 13 are provided at both ends of the connecting seat 12. An oil inlet channel 11 is provided in the middle of the upper half of the polytetrafluoroethylene outer layer 2, and an oil outlet channel 9 is provided in the middle of the lower half of the polytetrafluoroethylene outer layer 2. Sealing pistons 10 are plugged at one end of the oil inlet channel 11 and the oil outlet channel 9. By utilizing the mutual cooperation between them, the lubricating oil can be replaced without disassembling the oil seal assembly, which makes it very convenient to replace the lubricating oil and improves the efficiency of replacing the lubricating oil.

[0023] The two ends of the oil inlet channel 11 and the oil outlet channel 9 are communicated with the inner side and the outer side of the oil seal respectively.

[0024] The number of the mounting holes 13 is four, and the four mounting holes 13 are arranged at two ends of the connecting seat 12 opposite to each other.

[0025] The two sealing pistons 10 can be pulled out from one end of the oil inlet channel 11 and the oil outlet channel 9 .

[0026] The oil inlet channel 11 and the oil outlet channel 9 are located at the upper left of the connecting seat 12 .

[0027] The diameters of the oil inlet channel 11 and the oil outlet channel 9 are both 5 mm.

[0028] The working principle and use process of the utility model are as follows: first, during installation, the oil seal assembly is installed as a whole on the installation shaft 8. At this time, the right side of the polytetrafluoroethylene outer layer 2 is the atmosphere side, and the left side of the polytetrafluoroethylene outer layer 2 is the sealing medium side. After being installed on the installation shaft 8, the oil seal assembly is fixedly installed by fasteners passing through the installation holes 13 on the connecting seat 12. The integrated connecting seat structure is adopted, which is convenient for installation and improves the installation efficiency.

[0029] When it is necessary to replace the sealing medium on the left side of the polytetrafluoroethylene outer layer 2, the sealing piston 10 on the oil outlet channel 9 is pulled out, and then the lubricating oil sealing medium is discharged from the oil outlet channel 9, and then the sealing piston 10 on the oil outlet channel 9 is plugged back into place, and then the sealing piston 10 on the oil inlet channel 11 is pulled out, and lubricating oil is input from the inlet end of the oil inlet channel 11, and finally the sealing piston 10 on the oil inlet channel 11 is plugged back into place, and the replacement is completed, which makes it very convenient to replace the lubricating oil and improves the efficiency of replacing the lubricating oil. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0030] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. An integral seat-type oil seal assembly, comprising a metal frame (1), a polytetrafluoroethylene inner layer (14) and a polytetrafluoroethylene outer layer (2), characterized in that: A polytetrafluoroethylene inner layer (14) is arranged on the outer side of the metal skeleton (1), a polytetrafluoroethylene outer layer (2) is arranged on the outer side of the polytetrafluoroethylene inner layer (14), a dustproof lip (3) is arranged on one end of the inner side wall of the polytetrafluoroethylene inner layer (14), a sealing lip (4) is arranged on the other end of the inner side wall of the polytetrafluoroethylene inner layer (14), a spring retaining lip (7) is arranged on the polytetrafluoroethylene inner layer (14), and a spring groove (5) is arranged at the spring retaining lip (7). A hoop spring (6) is installed in the spring groove (5); a connecting seat (12) is connected to one side of the bottom of the polytetrafluoroethylene outer layer (2); mounting holes (13) are provided at both ends of the connecting seat (12); an oil inlet channel (11) is provided in the middle of the upper half of the polytetrafluoroethylene outer layer (2); an oil outlet channel (9) is provided in the middle of the lower half of the polytetrafluoroethylene outer layer (2); and sealing pistons (10) are provided at one end of each of the oil inlet channel (11) and the oil outlet channel (9).

2. The integral seated oil seal assembly according to claim 1, characterized in that: Both ends of the oil inlet channel (11) and the oil outlet channel (9) are communicated with the inner side and the outer side of the oil seal respectively.

3. The integral seat-connected oil seal assembly according to claim 1, characterized in that: The number of the mounting holes (13) is set to four, and the four mounting holes (13) are arranged in pairs at the two ends of the connecting seat (12) opposite to each other.

4. The integral seat-connected oil seal assembly according to claim 1, characterized in that: The two sealing pistons (10) can be pulled out from one end of the oil inlet channel (11) and the oil outlet channel (9).

5. The integral seat-connected oil seal assembly according to claim 1, characterized in that: The oil inlet channel (11) and the oil outlet channel (9) are located at the upper left of the connecting seat (12).

6. The integral seat-connected oil seal assembly according to claim 1, characterized in that: The diameters of the oil inlet channel (11) and the oil outlet channel (9) are both 5 mm.

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