Oil seal protection structure capable of being rapidly installed

Abstract

The utility model discloses a fast installation oil seal protection structure, which belongs to the motor shaft end waterproof technical field, and comprises an end cover, a bearing and an oil seal are respectively arranged in the end cover, an output shaft penetrates through the bearing and the oil seal, one side of the end cover is provided with an oil seal cover, one end of the output shaft penetrates through the oil seal cover, and the other end of the output shaft penetrates through the oil seal cover. After the oil seal cover is installed, a part of space exists among the oil seal cover, the oil seal and the end cover, lubricating grease is filled in the space, the part of lubricating grease can provide a longer-time lubricating effect for the oil seal, and the lubricating grease has hydrophobicity, so that the lubricating grease can be used for lubricating the oil seal for a longer time. And when the grease is filled in a small gap between the oil seal cover and the output shaft, water can be prevented from entering, so that the problem that the oil seal and the output shaft are continuously rubbed in the operation process of the motor in the prior art, and the damage of the oil seal caused by friction is reduced only by using extremely little lubricating grease at the oil seal is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor shaft end waterproofing, in particular to a quick-installation oil seal protection structure. Background Art

[0002] At present, in the process of analyzing automobile motor aftermarket parts, a common phenomenon is found, that is, there are traces of water ingress inside the motor, which will greatly shorten the life of the motor, and even worse, directly cause the motor to be damaged;

[0003] As for the problem of water ingress into the motor, the waterproof structure of the existing motor still has certain defects. Most of the water ingress points appear at the shaft extension end. Although the existing technology has a certain effect on sealing, after long-term high and low temperature and aging tests, the sealing effect will gradually be lost. After the motor has been installed and used, its disassembly and maintenance is time-consuming and laborious, which will affect the normal use of the vehicle. At the same time, a good sealing effect only exists in the early stage of the product life. As time goes by, the sealing effect will be lost. For this reason, a quick-install oil seal protection structure is proposed. Summary of the invention

[0004] The purpose of the utility model is to provide a quick-install oil seal protection structure to solve the problem in the above-mentioned background technology that only relying on oil seals will lead to the risk of oil seal aging, and that the oil seal cannot be replaced and an annular waterproof structure cannot be installed without disassembling the machine.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick-install oil seal protection structure, comprising an end cover, wherein a bearing and an oil seal are respectively installed in the end cover, an output shaft passes through the bearing and the oil seal, an oil seal cover is installed on one side of the end cover, one end of the output shaft passes through the oil seal cover, and a shaft sleeve is installed on an extension section at one end of the output shaft.

[0006] As a further preferred embodiment of the present technical solution: the end cover supports the bearing and oil seal inside it and the casing outside it, and the bearing is arranged to ensure the stable operation of the output shaft.

[0007] As a further preferred embodiment of the technical solution: the oil seal is located behind the bearing, a cavity is provided on one side of the oil seal cover adjacent to the oil seal, and the cavity is filled with grease.

[0008] As a further preferred embodiment of the present technical solution: filling the space with grease can provide longer-term lubrication for the oil seal, and the grease is hydrophobic. When the grease is filled in the tiny gap between the oil seal cover and the output shaft, it can also block the entry of water, thereby increasing the service life of the oil seal.

[0009] As a further preferred embodiment of the technical solution: the oil seal cover comprises a first seal cover, a second seal cover and at least two bolts;

[0010] Wherein, the first cover is connected to the second cover by bolts.

[0011] As a further preferred embodiment of the technical solution: the oil seal cover is cut into a first cover and a second cover in equal halves by wire cutting, and each cover has a through hole and a threaded hole at both ends, and is connected and clamped to the end cover by bolt locking. The above-mentioned installation method can effectively solve the problem of replacing the oil seal and adding an annular waterproof structure without disassembling the machine.

[0012] As a further preferred embodiment of the technical solution: the shaft sleeve is located in front of the oil seal cover, and a flange is installed on the shaft sleeve.

[0013] As a further preferred embodiment of the present technical solution: the outer side of the shaft sleeve and the inner side of the flange are both arranged in a conical shape. Through the above arrangement, the shaft sleeve and the flange are more closely fitted, and the installation and fixing effect is better.

[0014] As a further preferred embodiment of the technical solution: a casing is installed on the side of the end cover away from the oil seal cover, and the other end of the output shaft passes through the casing, so that the internal components are protected by the casing.

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

[0016] 1. After the oil seal cover is installed, there will be a part of space between the oil seal cover, the oil seal and the end cover. The lubricating grease is filled in this space, and this part of the lubricating grease can provide lubrication for the oil seal for a longer time. The grease is hydrophobic. When the grease is filled in the small gap between the oil seal cover and the output shaft, it can also prevent water from entering, thereby effectively solving the problem that the oil seal and the output shaft are constantly rubbed during the operation of the motor, and only a small amount of lubricating grease at the oil seal is used to reduce the damage of the oil seal caused by friction;

[0017] 2. The oil seal cover provided in the utility model comprises a component which is formed by cutting the entire ring into two semicircular rings of equal halves using a wire, and each cover has a through hole and a threaded hole at both ends thereof, and is connected and fastened to the end cover by bolts. Thus, the above-mentioned installation method can effectively solve the problem of replacing the oil seal and adding an annular waterproof structure without disassembling the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a quick-install oil seal protection structure of the utility model;

[0019] Figure 2This is a schematic cross-sectional structure diagram of a quick-install oil seal protection structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the explosion structure of a quick-install oil seal protection structure of the utility model;

[0021] Figure 4 This is a structural schematic diagram of an oil seal cover in a quick-install oil seal protection structure of the utility model;

[0022] Figure 5 The utility model is a schematic diagram of the explosion structure of the oil seal cover in the oil seal protection structure which can be installed quickly.

[0023] In the figure: 1. casing; 2. end cover; 3. bearing; 4. output shaft; 5. oil seal; 6. oil seal cover; 61. first cover; 62. second cover; 63. bolt; 7. bushing; 8. flange. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] Example

[0026] See also Figure 1-Figure 5 The utility model provides a technical solution: a quick-install oil seal protection structure, including an end cover 2, a bearing 3 and an oil seal 5 are respectively installed in the end cover 2, an output shaft 4 passes through the bearing 3 and the oil seal 5, an oil seal cover 6 is installed on one side of the end cover 2, one end of the output shaft 4 passes through the oil seal cover 6, and a shaft sleeve 7 is installed on the extension section of one end of the output shaft 4.

[0027] In this embodiment, specifically: the end cover 2 is used to receive the bearing 3 and the oil seal 5 inside it and the housing 1 outside it. The bearing 3 is used to ensure the stable operation of the output shaft 4.

[0028] In this embodiment, specifically: the oil seal 5 is located behind the bearing 3, and a cavity is provided on one side of the oil seal cover 6 adjacent to the oil seal 5, and the cavity is filled with grease.

[0029] In this embodiment, specifically: by filling the space with grease, the grease can provide lubrication for the oil seal 5 for a longer time, and the grease is hydrophobic. When the grease is filled in the small gap between the oil seal cover 6 and the output shaft 4, it can also block the entry of water, thereby increasing the service life of the oil seal 5.

[0030] In this embodiment, specifically: the oil seal cover 6 includes a first seal cover 61, a second seal cover 62 and at least two bolts 63;

[0031] The first cover 61 is threadedly connected to the second cover 62 via bolts 63 .

[0032] In this embodiment, specifically: the oil seal cover 6 is cut into a first cover 61 and a second cover 62 of equal halves by wire cutting, and each cover has a through hole and a threaded hole at both ends, and is connected and clamped to the end cover 2 by bolts 63. The above-mentioned installation method can effectively solve the problem of replacing the oil seal 5 and adding a ring-shaped waterproof structure without disassembling the machine.

[0033] In this embodiment, specifically: the shaft sleeve 7 is located in front of the oil seal cover 6, and the shaft sleeve 7 is threadedly connected with a flange 8 through bolts.

[0034] In this embodiment, specifically: the outer side of the shaft sleeve 7 and the inner side of the flange 8 are both set in a conical shape. Through the above-mentioned setting, when the shaft sleeve 7 and the flange 8 are installed, the two are more closely fitted, and the installation and fixing effect is better.

[0035] In this embodiment, specifically: the end cover 2 is threadedly connected to the housing 1 via bolts on one side away from the oil seal cover 6, and the other end of the output shaft 4 passes through the housing 1. The housing 1 is provided to protect its internal components.

[0036] Working principle: When in use, first install and fix the housing 1 and the end cover 2, and then assemble the bearing 3 and the oil seal 5 into the end cover 2. At this time, the output shaft 4 set in the housing 1 passes through the bearing 3 and the oil seal 5 in turn, and the oil seal cover 6 is installed on one side of the end cover 2. The oil seal cover 6 is provided with a cavity on the side adjacent to the oil seal 5, and the cavity is filled with grease. The grease can provide lubrication for the oil seal 5 for a longer time, and the grease is hydrophobic. When the grease is filled in the small gap between the oil seal cover 6 and the output shaft 4, it can also prevent water from entering, thereby improving the service life of the oil seal 5. At the same time, a sleeve 7 and a flange 8 are also installed on the output shaft 4. The outer side of the sleeve 7 and the inner side of the flange 8 are both conically set. When the sleeve 7 and the flange 8 are installed by the above setting, the two are more fitted, and the installation and fixing effect is better;

[0037] Among them, it needs to be further explained that the oil seal cover 6 is cut into a first cover 61 and a second cover 62 of equal halves by wire cutting, and each cover has a through hole and a threaded hole at both ends, and is connected and clamped to the end cover 2 by bolts 63. Therefore, the above-mentioned installation method can effectively solve the problem of replacing the oil seal 5 and adding a ring-shaped waterproof structure without disassembling the machine.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-install oil seal protection structure, comprising an end cover (2), characterized in that: A bearing (3) and an oil seal (5) are respectively installed in the end cover (2); an output shaft (4) passes through the bearing (3) and the oil seal (5); an oil seal cover (6) is installed on one side of the end cover (2); one end of the output shaft (4) passes through the oil seal cover (6); and a shaft sleeve (7) is installed on an extension section at one end of the output shaft (4).

2. The quick-install oil seal protection structure according to claim 1, characterized in that: The oil seal (5) is located behind the bearing (3), and a cavity is provided on a side of the oil seal cover (6) adjacent to the oil seal (5), and the cavity is filled with lubricating grease.

3. The quick-install oil seal protection structure according to claim 1, characterized in that: The oil sealing cover (6) comprises a first sealing cover (61), a second sealing cover (62) and at least two bolts (63); Wherein, the first cover (61) is connected to the second cover (62) via bolts (63).

4. The quick-install oil seal protection structure according to claim 3, characterized in that: The shaft sleeve (7) is located in front of the oil seal cover (6), and a flange (8) is installed on the shaft sleeve (7).

5. The quick-install oil seal protection structure according to claim 4, characterized in that: The outer side of the shaft sleeve (7) and the inner side of the flange (8) are both arranged in a conical shape.

6. The quick-install oil seal protection structure according to claim 1, characterized in that: A housing (1) is mounted on the side of the end cover (2) away from the oil seal cover (6), and the other end of the output shaft (4) passes through the housing (1).

Images