Oil seal structure with liquid leakage alarm function

Abstract

The utility model discloses an oil seal structure with a liquid leakage alarm function in the technical field of oil seal structures, which comprises a shell and a shaft sleeve, the shaft sleeve is arranged at one end of the shell, a rotating shaft is arranged in the shaft sleeve, the rotating shaft is rotatably connected with the shaft sleeve, a sealing gasket is arranged on the surface of the rotating shaft, a sealing groove is embedded in the inner wall of the shaft sleeve, and the sealing gasket is arranged in the sealing groove. The sealing gasket is slidably connected with the sealing groove, a through hole is formed in one end of the shaft sleeve in an embedded mode, a box body is arranged at the bottom of the shaft sleeve, the box body is fixedly connected with the shaft sleeve, an oil liquid sensor is arranged in the box body, and through the shaft sleeve, the rotating shaft, the sealing gasket, the sealing groove, the through hole, the box body and the oil liquid sensor, the oil leakage detection function is achieved; when oil leakage occurs, the oil can enter the box body under the action of gravity, so that the oil is detected by the oil liquid sensor, an alarm is started, and the safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil seal structures, and in particular relates to an oil seal structure with a liquid leakage alarm function. Background Art

[0002] The oil seal structure usually includes a rubber body, a metal frame, a back-up ring and an oil seal retaining ring, wherein the rubber body is sleeved on the rotating shaft and fits with the hole wall to seal between the rotating shaft and the hole wall, the metal frame is used to support the rubber body to improve the strength of the rubber body, and the back-up ring mainly plays the role of axial and radial support for the upper lip of the rubber body to ensure the sealing effect of the lip. In the prior art, the back-up ring is nested in the inner hole of the metal frame. In order to prevent the back-up ring from falling out of the metal frame under the repeated impact of oil pressure, it is usually necessary to add a retaining ring after the oil seal so that the retaining ring can block the back-up ring and prevent it from falling out.

[0003] The existing oil seal structure of metal reinforcements still has some defects. Most of them do not have leakage detection function. When the device leaks oil, the staff cannot find it in time, which brings economic losses and is inconvenient to use. For this reason, we propose an oil seal structure with leakage alarm function. Utility Model Content

[0004] The utility model aims to provide an oil seal structure with a liquid leakage alarm function, so as to solve the problem that most of the background technologies mentioned above do not have a liquid leakage detection function.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil seal structure with a liquid leakage alarm function, comprising a shell and a sleeve, a sleeve is provided at one end of the shell, a rotating shaft is provided inside the sleeve, the rotating shaft and the sleeve are rotatably connected, a sealing gasket is provided on the surface of the rotating shaft, a sealing groove is embedded in the inner wall of the sleeve, the sealing gasket and the sealing groove are slidably connected, a through hole is embedded at one end of the sleeve, a box body is provided at the bottom of the sleeve, the box body and the sleeve are fixedly connected, and an oil sensor is provided inside the box body.

[0006] Preferably, an alarm is provided on the top of the shell, the alarm is fixedly connected to the shell, and the alarm is electrically connected to the oil sensor.

[0007] Preferably, a storage box is provided on the top of the shaft sleeve, the storage box and the shaft sleeve are fixedly connected, and lubricating oil is provided inside the storage box.

[0008] Preferably, a refueling pipe is provided on the top of the storage box, a sealing cover is provided on the top of the refueling pipe, and the sealing cover and the refueling pipe are connected by threads.

[0009] Preferably, an oil inlet hole is embedded in the top of the shaft sleeve, and a solenoid valve is provided inside the oil inlet hole.

[0010] Preferably, a reinforcing rod is provided on one side of the shell, the reinforcing rod is fixedly connected to the shell, and four reinforcing rods are provided.

[0011] Preferably, the inner wall of the shell is provided with a rubber body, and the rubber body and the shell are fixed by bonding.

[0012] Preferably, the oil sensor and the housing are fixed by screws, and the shaft sleeve and the housing are fixed by welding.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The oil leakage detection function is realized by the provided shaft sleeve, rotating shaft, sealing gasket, sealing groove, through hole, box body and oil sensor. When oil leakage occurs, it will enter the interior of the box body under the action of gravity, and then be detected by the oil sensor, and then start the alarm, which improves safety.

[0015] 2. The lubricating oil is added through the storage box, refueling pipe and oil inlet hole. When the rotating shaft and sleeve need to be lubricated, the solenoid valve is started, and the lubricating oil inside the storage box will enter the interior of the sleeve through the oil inlet hole under the action of gravity, achieving the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the planar structure of the utility model.

[0019] In the figure: 1. Shell; 2. Bushing; 3. Rotating shaft; 4. Sealing gasket; 5. Sealing groove; 6. Through hole; 7. Box body; 8. Oil sensor; 9. Storage box; 10. Refueling pipe; 11. Oil inlet hole; 12. Alarm; 13. Reinforcement rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3The utility model provides a technical solution: an oil seal structure with a leakage alarm function, comprising a shell 1 and a sleeve 2, a sleeve 2 is provided at one end of the shell 1, a rotating shaft 3 is provided inside the sleeve 2, the rotating shaft 3 and the sleeve 2 are rotatably connected, a sealing gasket 4 is provided on the surface of the rotating shaft 3, a sealing groove 5 is embedded in the inner wall of the sleeve 2, the sealing gasket 4 and the sealing groove 5 are slidably connected, a through hole 6 is embedded at one end of the sleeve 2, a box body 7 is provided at the bottom of the sleeve 2, the box body 7 and the sleeve 2 are fixedly connected, and an oil sensor 8 is provided inside the box body 7.

[0022] In this embodiment, when the oil seal structure with a liquid leakage alarm function is used, through the provided sealing gasket 4 and sealing groove 5, when the rotating shaft 3 rotates inside the sleeve 2, the sealing gasket 4 will slide inside the sealing groove 5, thereby achieving a sealing effect. When oil leakage occurs, the oil will fall into the interior of the box body 7 through the through hole 6. The oil sensor 8 provided can detect the entering oil. When oil leakage is detected, the alarm 12 will be activated through the control center to start the alarm, reminding the staff to deal with it in time, thereby effectively improving safety.

[0023] Specifically, an alarm 12 is provided on the top of the shell 1, and the alarm 12 is fixedly connected to the shell 1. The alarm 12 is electrically connected to the oil sensor 8. A storage box 9 is provided on the top of the sleeve 2, and the storage box 9 is fixedly connected to the sleeve 2. Lubricating oil is provided inside the storage box 9. A refueling pipe 10 is provided on the top of the storage box 9. A sealing cover is provided on the top of the refueling pipe 10. The sealing cover and the refueling pipe 10 are connected by threads. An oil inlet hole 11 is embedded in the top of the sleeve 2, and a solenoid valve is provided inside the oil inlet hole 11. A reinforcing rod 13 is provided on one side of the shell 1, and the reinforcing rod 13 is fixedly connected to the shell 1. There are four reinforcing rods 13. A rubber body is provided on the inner wall of the shell 1, and the rubber body and the shell 1 are fixed by bonding. The oil sensor 8 and the box body 7 are fixed by screws, and the sleeve 2 and the shell 1 are fixed by welding.

[0024] In this embodiment, the lubricating oil is added by means of the storage box 9, the filling pipe 10 and the oil inlet hole 11. When the rotating shaft 3 and the sleeve 2 need to be lubricated, the solenoid valve is started, and the lubricating oil inside the storage box 9 enters the interior of the sleeve 2 through the oil inlet hole 11 under the action of gravity, thereby achieving the lubrication effect thereon. The reinforcing rod 13 is provided to improve the stability of the housing 1, making it more durable.

[0025] Although 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. An oil seal structure with a leakage alarm function, comprising a housing and a sleeve, characterized in that: A shaft sleeve is provided at one end of the shell, a rotating shaft is provided inside the shaft sleeve, the rotating shaft and the shaft sleeve are rotatably connected, a sealing gasket is provided on the surface of the rotating shaft, a sealing groove is embedded in the inner wall of the shaft sleeve, the sealing gasket and the sealing groove are slidably connected, a through hole is embedded at one end of the shaft sleeve, a box body is provided at the bottom of the shaft sleeve, the box body and the shaft sleeve are fixedly connected, and an oil sensor is provided inside the box body.

2. The oil seal structure with leakage alarm function according to claim 1, characterized in that: An alarm is arranged on the top of the shell, the alarm is fixedly connected to the shell, and the alarm is electrically connected to the oil sensor.

3. The oil seal structure with leakage alarm function according to claim 1, characterized in that: A storage box is provided on the top of the shaft sleeve, the storage box is fixedly connected to the shaft sleeve, and lubricating oil is provided inside the storage box.

4. The oil seal structure with leakage alarm function according to claim 3, characterized in that: A refueling pipe is arranged on the top of the storage box, a sealing cover is arranged on the top of the refueling pipe, and the sealing cover and the refueling pipe are connected by threads.

5. The oil seal structure with leakage alarm function according to claim 1, characterized in that: An oil inlet hole is embedded in the top of the shaft sleeve, and a solenoid valve is arranged inside the oil inlet hole.

6. The oil seal structure with leakage alarm function according to claim 1, characterized in that: A reinforcing rod is provided on one side of the shell, and the reinforcing rod is fixedly connected to the shell, and four reinforcing rods are provided.

7. The oil seal structure with leakage alarm function according to claim 1, characterized in that: The inner wall of the shell is provided with a rubber body, and the rubber body and the shell are fixed by bonding.

8. The oil seal structure with leakage alarm function according to claim 1, characterized in that: The oil sensor and the housing are fixed by screws, and the shaft sleeve and the housing are fixed by welding.

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