A drum oil leakage protection device

Abstract

The present invention discloses a drum oil leakage protection device, which includes an end cover, a sealing cover, a first oil seal, a second oil seal, a cylinder body and a rotating shaft. The first oil seal is sunk into the oil seal chamber of the end cover to prevent lubricating oil from leaking. The second oil seal is sunk into the oil seal chamber of the sealing cover to prevent lubricating oil from leaking. The end cover is provided with a first sealing part and a second sealing part. The first sealing part can prevent lubricating oil from leaking, and the second sealing part can prevent lubricating oil from leaking. There is a cavity between the end cover and the sealing cover. If the lubricating oil leaks, the air pressure in the cavity between the sealing cover and the end cover increases to form an air pressure difference, which slows down the further leakage of the lubricating oil. The cavity can also delay the time when the lubricating oil starts to impact the oil seal lip. The air pressure in the clearance groove between the cylinder body and the end cover increases to form an air pressure difference, which slows down the further leakage of the lubricating oil, forming a triple protection with excellent protection effect, which can effectively ensure the sealing effect and service life of the drum oil seal and the drum end cover.

Description

Technical Field

[0001] The invention relates to the technical field of roller oil leakage protection devices, in particular to a roller oil leakage protection device. Background Art

[0002] The electric drum is a new type of drive device that places the motor and reducer together inside the drum body. It is mainly used in fixed and mobile belt conveyors to replace the traditional separate drive device in which the motor and reducer are placed outside the driving drum.

[0003] When the electric drum is in use, in order to lubricate the reducer and dissipate the heat of the motor, it is necessary to inject a proper amount of lubricating oil into the drum. However, after a long period of high-speed force meshing, the gears of the reducer inside the drum will produce some impurities and mix into the oil as the drum rotates. Because the drum end cover oil seal is in direct contact with the oil, when the oil seal is circulated inside the drum lubricating oil, the contact of impurities with the oil seal lip can easily cause the end cover oil seal to be damaged and fail, and the sealing effect is compromised. At the same time, since the drum body wall thickness at the joint surface between the drum body and the end cover is only 2-3mm, the drum body is easily deformed during processing. After deformation, when the drum body and the end cover are in interference contact, the joint surface is prone to loose bonding, and the sealing effect is compromised. Both of these situations will eventually lead to oil leakage from the drum. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art solutions, the present invention provides a roller oil leakage protection device, which can effectively solve the problems raised by the background technology.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a drum oil leakage protection device, comprising an end cover, a sealing cover, a first oil seal, a second oil seal, a cylinder and a rotating shaft, the end cover is provided with an end cover oil seal chamber, the sealing cover is provided with a sealing cover oil seal chamber, the first oil seal is sunk into the end cover oil seal chamber, the second oil seal is sunk into the sealing cover oil seal chamber, the end cover has an outer cylindrical surface, and two sealing parts are provided on one side of the end cover close to the outer cylindrical surface, which are respectively a first sealing part and a second sealing part;

[0006] A wall hollow groove is provided between the first sealing component and the second sealing component, the end cover is provided with a sealing cover sealedly connected thereto, and a cavity is provided between the end cover and the sealing cover.

[0007] Preferably, the end cover is provided with at least one screw hole, and the screw hole is provided with a fourth sealing part.

[0008] Preferably, the first sealing component, the second sealing component and the fourth sealing component are sunk into the oil sealing chamber of the end cover.

[0009] Preferably, a third sealing component for achieving a sealed connection is provided between the end cover and the sealing cover.

[0010] Preferably, the third sealing part is sunk into the oil seal chamber of the sealing cover.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] The second oil seal is sunk into the oil seal chamber of the sealing cover, which can prevent the leakage of lubricating oil. If the lubricating oil leaks, the air pressure in the cavity between the sealing cover and the end cover increases, forming an air pressure difference, which slows down the further leakage of the lubricating oil. The cavity can also delay the time when the lubricating oil starts to impact the lip of the oil seal. The first oil seal is sunk into the oil seal chamber of the end cover, which can prevent the leakage of lubricating oil. The first sealing part on the outer cylindrical surface of the end cover can prevent the leakage of lubricating oil. If the lubricating oil leaks, the air pressure in the clearance groove between the cylinder body and the end cover increases, forming an air pressure difference, which slows down the further leakage of the lubricating oil. The second sealing part on the outer cylindrical surface of the end cover can prevent the leakage of lubricating oil. And this structure forms a triple protection, with an excellent protection effect, which can effectively ensure the sealing effect and service life of the drum oil seal and the drum end cover. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the present invention;

[0014] Figure 2 is another schematic structural diagram of the present invention.

[0015] Reference numerals in the drawings:

[0016] End cover 1, sealing cover 2, first oil seal 3, second oil seal 4, first sealing part 5, second sealing part 6, third sealing part 7, fourth sealing part 8, cylinder body 9, rotating shaft 10. Detailed Embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Such as Figure 1-2As shown in the figure, the present invention provides a drum oil leakage protection device, including an end cover 1, a sealing cover 2, a first oil seal 3, a second oil seal 4, a cylinder body 9 and a rotating shaft 10. The end cover 1 is provided with an end cover oil seal chamber, and the sealing cover 2 is provided with a sealing cover oil seal chamber. The first oil seal 3 is sunk into the end cover oil seal chamber, and the first oil seal 3 can prevent lubricating oil from leaking. The second oil seal 4 is sunk into the sealing cover oil seal chamber. The end cover 1 has an outer circular surface, and two sealing parts, namely a first sealing part 5 and a second sealing part 6, are provided on one side of the end cover 1 close to the outer circular surface. The first sealing part 5 can prevent lubricating oil from leaking. If the lubricating oil leaks, the air pressure in the clearance groove between the cylinder body 9 and the end cover 1 increases, forming an air pressure difference, which slows down the further leakage of the lubricating oil. The second sealing part 6 can prevent lubricating oil from leaking. There is a clearance groove between the first sealing part 5 and the second sealing part 6, and this clearance groove can effectively prevent oil leakage caused by the loose fit between the end cover 1 and the cylinder body 9. A certain amount of lubricating oil can be stored in the clearance groove. When the lubricating oil is less, the pressure of the lubricating oil on the second sealing part 6 is smaller, which can improve the service life of the second sealing part 6. The end cover 1 is provided with a sealing cover 2 which is hermetically connected thereto. A third sealing part 7 for realizing a sealing connection is provided between the end cover 1 and the sealing cover 2, and a cavity is provided between the end cover 1 and the sealing cover 2. This cavity can effectively prevent oil leakage caused by the failure of the oil seal. The third sealing part 7 prevents the lubricating oil from leaking into the cavity between the end cover 1 and the sealing cover 2. If the lubricating oil leaks, it needs to first break through the protection of the second oil seal 4 of the sealing cover 2 or the third sealing part 7. The leaked lubricating oil will increase the air pressure in the cavity, slowing down the further leakage of the oil fluid. When the leaked lubricating oil is less, the impact of the lubricating oil on the oil seal lip of the end cover 1 is smaller, which can improve the service life of the oil seal. The end cover 1 is provided with at least one screw hole, and a fourth sealing part 8 is provided in the screw hole. The first sealing part 5, the second sealing part 6 and the fourth sealing part 8 are sunk into the end cover oil seal chamber, and the third sealing part 7 is sunk into the sealing cover oil seal chamber.

[0019] Or, a first sealing part 5, a second sealing part 6 and a clearance groove are provided between the end cover 1 and the cylinder body 9. When the lubricating oil leaks, it needs to first break through the protection of the first sealing part 5. The leaked oil fluid will increase the air pressure in the clearance groove, forming an air pressure difference, which slows down the further leakage of the oil fluid. At the same time, a certain amount of lubricating oil can be stored in the clearance groove. When the lubricating oil is less, the pressure of the lubricating oil on the second sealing part 6 is smaller, which can improve the service life of the second sealing part 6. The second sealing part 6 can prevent lubricating oil from leaking, thereby realizing triple protection, and can greatly reduce the leakage risk caused by the loose fit between the end cover 1 and the cylinder body 9 and the poor machining of the inner surface of the outer circular surface of the end cover 1 and the cylinder body 9.

[0020] In summary, the second oil seal 4 sinks into the oil seal chamber of the sealing cover, which can prevent the leakage of lubricating oil. If the lubricating oil leaks, the air pressure in the cavity between the sealing cover 2 and the end cover 1 increases, forming an air pressure difference, which slows down the further leakage of the lubricating oil. The cavity can also delay the time when the lubricating oil starts to impact the lip of the oil seal. The first oil seal 3 sinks into the oil seal chamber of the end cover, which can prevent the leakage of lubricating oil. The first sealing part 5 on the outer cylindrical surface of the end cover 1 can prevent the leakage of lubricating oil. If the lubricating oil leaks, the air pressure in the clearance groove between the cylinder body 9 and the end cover 1 increases, forming an air pressure difference, which slows down the further leakage of the lubricating oil. The second sealing part 6 on the outer cylindrical surface of the end cover can prevent the leakage of lubricating oil. Moreover, this structure forms a triple protection, and the protection effect is excellent, which can effectively ensure the sealing effect and service life of the drum oil seal and the drum end cover.

[0021] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claimed rights.

Claims

1. A drum oil leakage protection device, characterized in that, it includes an end cover, a sealing cover, a first oil seal, a second oil seal, a cylinder body and a rotating shaft. The end cover is provided with an end cover oil seal chamber, the sealing cover is provided with a sealing cover oil seal chamber, the first oil seal is sunk into the end cover oil seal chamber, the second oil seal is sunk into the sealing cover oil seal chamber, the end cover has an outer circular surface, and two sealing parts, namely a first sealing part and a second sealing part, are provided on one side of the end cover close to the outer circular surface; a wall empty groove is provided between the first sealing part and the second sealing part, the end cover is provided with a sealing cover in sealed connection therewith, and a cavity is provided between the end cover and the sealing cover.

2. The drum oil leakage protection device according to claim 1, characterized in that, the end cover is provided with at least one screw hole, and a fourth sealing part is provided in the screw hole.

3. The drum oil leakage protection device according to any one of claims 1 or 2, characterized in that, the first sealing part, the second sealing part and the fourth sealing part are sunk into the end cover oil seal chamber.

4. The drum oil leakage protection device according to claim 1, characterized in that, a third sealing part for realizing sealed connection is provided between the end cover and the sealing cover.

5. The drum oil leakage protection device according to claim 4, characterized in that, the third sealing part is sunk into the sealing cover oil seal chamber.

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