Rotor sealing oiling structure of vacuum degasser

Abstract

The utility model relates to the technical field of degassers, and provides a rotor sealing and oiling structure of a vacuum degasser, which comprises a sleeve with a sealed space; the rotor is arranged at one end of the transmission shaft, the rotor is used for stirring liquid, the transmission shaft penetrates through the sealed space, the transmission shaft is provided with an oil injection hole and an oil outlet hole, and the axis of the oil injection hole coincides with the axis of the transmission shaft; the oil outlet hole is used for communicating the sealed space with the oil filling hole. By means of the technical scheme, the problem that in the prior art, lubricating substances are difficult to fill is solved.

Description

Technical Field

[0001] This utility model relates to the field of degassing technology, specifically to a rotor sealing and lubrication structure for a vacuum degassing device. Background Technology

[0002] A vacuum degasser consists of a vacuum tank. Typically, a liquid inlet pipe runs through the bottom of the tank, allowing liquid to enter. At the outlet of the inlet pipe, a rotor rotates, breaking up air bubbles in the liquid exiting the inlet pipe. The liquid then falls to the bottom of the vacuum tank under gravity, thus achieving degassing. The rotor must be located inside the vacuum tank, and its drive shaft penetrates the tank. The connection between the drive shaft and the vacuum tank is rotatable, requiring lubrication at this rotatable connection point.

[0003] In existing technologies, a sealed cylinder is usually installed at the connection point between the drive shaft and the vacuum tank. The drive shaft passes through the cylinder, which contains a bearing to support the drive shaft. To prevent the bearing from being affected by the liquid inside the vacuum tank, the cylinder is a sealed structure. This means that if the lubricating oil or grease inside the cylinder leaks, the cylinder needs to be disassembled for replenishment. Utility Model Content

[0004] This invention proposes a sealing and lubrication structure for a vacuum degasser rotor, which solves the problem of difficulty in filling lubricating substances in related technologies.

[0005] The technical solution of this utility model is as follows:

[0006] A vacuum degasser rotor sealing and lubrication structure, comprising:

[0007] Sleeve, with a sealed space;

[0008] A drive shaft is rotatably disposed relative to the sleeve, and the axis of rotation of the drive shaft coincides with the axis of the sleeve. A rotor is disposed at one end of the drive shaft and is used to stir the liquid. The drive shaft passes through the sealed space and has an oil injection hole and an oil outlet hole. The axis of the oil injection hole coincides with the axis of the drive shaft. The inlet of the oil injection hole is located at the end of the drive shaft away from the rotor. The oil outlet hole is used to connect the sealed space and the oil injection hole.

[0009] Optionally, it also includes:

[0010] The sleeve has two seals, which are located at the two ends of the sleeve, and the sealing space is located between the two seals.

[0011] Optionally, it also includes:

[0012] The bearing has its outer and inner walls respectively disposed on the inner wall of the sleeve and the outer wall of the drive shaft. The bearing is located within the sealed space, and the outlet of the oil outlet is located above the bearing.

[0013] Optionally, the seal includes:

[0014] An end cap is detachably disposed at one end of the sleeve, the end cap having a first through hole for the drive shaft to pass through;

[0015] A sealing ring is provided on the end cover, and the inner wall of the sealing ring is rotatably sealed to the drive shaft.

[0016] Optionally, it also includes:

[0017] The oil nozzle is located at the inlet of the oil filling hole.

[0018] Optionally, the oil outlet is inclined relative to the axis of the drive shaft, and the oil outlet has a first end and a second end. The first end is located at the bottom of the oil injection hole, and the second end is located within the sealing space. The first end is closer to the oil injection nozzle than the second end.

[0019] The working principle and beneficial effects of this utility model are as follows:

[0020] In this invention, the sleeve is fixed, and the drive shaft rotates inside it. When lubrication is required, the operator uses an oiling device to align the lubrication port at the end of the drive shaft furthest from the rotor. The injected lubricant flows along the oiling port and then enters the sealed space through the oil outlet. Once the sealed space is full of lubricant, effective lubrication is achieved. A protrusion can be added inside the sleeve to restrict the perpendicularity of the drive shaft. This protrusion abuts against the outer wall of the drive shaft, and the lubricant lubricates between the protrusion and the drive shaft. Alternatively, a bearing can be added inside the sleeve, and the lubricant is used to lubricate the bearing, extending its service life.

[0021] The operation is simple and quick, requiring no large-scale disassembly of the equipment, saving time and labor costs. Secondly, timely and convenient replenishment of lubricant ensures good lubrication, reducing wear on the drive shaft and sleeves and extending component lifespan. Furthermore, it helps reduce equipment failures caused by insufficient lubrication, improving the stability and continuity of equipment operation. Attached Figure Description

[0022] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0023] Figure 1This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0026] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B.

[0027] In the diagram: 100, sleeve; 101, sealed space; 200, drive shaft; 210, oil injection hole; 220, oil outlet hole; 300, seal; 400, bearing; 310, end cap; 320, sealing ring; 500, oil injection nozzle; 221, first end; 222, second end. Detailed Implementation

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0029] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0030] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Example 1

[0033] Reference Figures 1-2 This is the first embodiment of the present invention, which proposes a vacuum degasser rotor sealing and oiling structure, including a sleeve 100, the sleeve 100 having a sealing space 101; a drive shaft 200 rotatably disposed relative to the sleeve 100, and the rotation axis of the drive shaft 200 coincides with the axis of the sleeve 100; a rotor is disposed at one end of the drive shaft 200, the rotor is used to stir the liquid; the drive shaft 200 passes through the sealing space 101; the drive shaft 200 has an oil injection hole 210 and an oil outlet hole 220; the axis of the oil injection hole 210 coincides with the axis of the drive shaft 200; the inlet of the oil injection hole 210 is located at the end of the drive shaft 200 away from the rotor; and the oil outlet hole 220 is used to connect the sealing space 101 and the oil injection hole 210.

[0034] In this embodiment, the sleeve 100 is in a fixed state, and the drive shaft 200 rotates inside it. When lubricant needs to be added, the operator uses an oiling device to align the oiling hole 210 at the end of the drive shaft 200 furthest from the rotor. The injected lubricant flows along the oiling hole 210 and then enters the sealed space 101 through the oil outlet 220. Once the sealed space 101 is filled with lubricant, effective lubrication is achieved. A protrusion can be added inside the sleeve 100 to restrict the perpendicularity of the drive shaft 200. The protrusion abuts against the outer wall of the drive shaft 200, and the lubricant can lubricate between the protrusion and the drive shaft 200. Alternatively, a bearing 400 can be added inside the sleeve 100, and the lubricant can be used to lubricate the bearing 400, thereby extending its service life.

[0035] By opening an oil injection hole 210 on the rotating shaft, oil injection is not only simple and quick, eliminating the need for large-scale disassembly of the equipment and saving time and labor costs, but also allows for timely and convenient replenishment of lubricant, ensuring good lubrication of the device, reducing the wear rate of the drive shaft 200 and sleeve 100, and extending the service life of components. Furthermore, it helps reduce equipment failures caused by insufficient lubrication, improving the stability and continuity of equipment operation.

[0036] Furthermore, it also includes two seals 300, which are located at the two ends of the sleeve 100 respectively, and the sealing space 101 is located between the two seals 300.

[0037] In this embodiment, two seals 300 are respectively and tightly installed at both ends of the sleeve 100. The seals 300 fit tightly with the sleeve 100 and the drive shaft 200, effectively preventing the entry of external substances and the leakage of internal lubricating substances. The sealed space 101 is clearly defined by the two seals 300, forming a relatively independent and closed area. The installation of the seals 300 significantly enhances the sealing performance and minimizes the possibility of lubricating substance leakage and the intrusion of external contaminants.

[0038] Furthermore, it also includes a bearing 400, the outer wall and inner wall of which are respectively disposed on the inner wall of the sleeve 100 and the outer wall of the drive shaft 200. The bearing 400 is located in the sealed space 101, and the outlet of the oil outlet 220 is located above the bearing 400.

[0039] In this embodiment, the outer wall of the bearing 400 is mounted on the inner wall of the sleeve 100, which in turn is mounted on the outer wall of the drive shaft 200. The bearing 400 is located inside the sealed space 101 defined by two seals 300. The outlet of the oil outlet 220 is located above the bearing 400. When lubricating material is injected through the oil injection hole 210 of the drive shaft 200, the lubricating material flows out from the oil outlet 220 and can drip directly onto the bearing 400 to lubricate it.

[0040] Furthermore, the seal 300 includes an end cap 310, which is detachably disposed at one end of the sleeve 100. The end cap 310 has a first through hole through which the drive shaft 200 passes. A sealing ring 320 is disposed on the end cap 310, and the inner wall of the sealing ring 320 is rotatably sealed with the drive shaft 200.

[0041] In this embodiment, the end cap 310 of the seal 300 is detachably mounted on one end of the sleeve 100. The detachable end cap 310 facilitates the installation, removal, and maintenance of the bearing 400, sealing ring 320, and drive shaft 200 within the sleeve 100. The end cap 310 has a first through hole through which the drive shaft 200 can pass. The rotational seal between the sealing ring 320 and the drive shaft 200 effectively prevents the passage of lubricating substances and external impurities, improving the reliability of the seal.

[0042] Furthermore, it also includes an oil nozzle 500, which is located at the inlet of the oil filling hole 210.

[0043] In this embodiment, the grease nipple 500 can guide the lubricating material into the grease injection hole 210 more accurately and smoothly, reducing leakage and waste during the grease injection process. Secondly, the grease nipple 500 can provide a certain degree of protection for the grease injection hole 210, preventing impurities from entering the grease injection hole 210 and causing blockage.

[0044] Example 2

[0045] Figures 3-4 In the second embodiment of the present invention, based on the first embodiment, the oil outlet 220 is further inclined relative to the axis of the transmission shaft 200. The oil outlet 220 has a first end 221 and a second end 222. The first end 221 is located at the bottom of the oil injection hole 210, and the second end 222 is located in the sealing space 101. The first end 221 is closer to the oil injection nozzle 500 than the second end 222.

[0046] In this embodiment, when lubricating material is injected from the grease nipple 500 into the grease hole 210, due to the inclined design of the grease outlet 220, the lubricating material can flow more smoothly from the first end 221 to the second end 222 under the action of gravity and pressure, reducing the input pressure of the grease hole 210 and improving the grease injection efficiency. The inclined grease outlet 220 allows for better utilization of gravity, making the grease injection process smoother and reducing reliance on external pressure equipment.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sealing and lubrication structure for a vacuum degasser rotor, characterized in that, include: Sleeve (100) has a sealing space (101); A drive shaft (200) is rotatably disposed relative to the sleeve (100), and the rotation axis of the drive shaft (200) coincides with the axis of the sleeve (100). A rotor is disposed at one end of the drive shaft (200) and is used to stir liquid. The drive shaft (200) passes through the sealed space (101). The drive shaft (200) has an oil injection hole (210) and an oil outlet hole (220). The axis of the oil injection hole (210) coincides with the axis of the drive shaft (200). The inlet of the oil injection hole (210) is located at the end of the drive shaft (200) away from the rotor. The oil outlet hole (220) is used to connect the sealed space (101) and the oil injection hole (210).

2. The vacuum degasser rotor sealing and lubrication structure according to claim 1, characterized in that, Also includes: The seal (300) has two parts, which are located at the two ends of the sleeve (100) respectively, and the sealing space (101) is located between the two seals (300).

3. The vacuum degasser rotor sealing and lubrication structure according to claim 1, characterized in that, Also includes: The bearing (400) has its outer wall and inner wall respectively disposed on the inner wall of the sleeve (100) and the outer wall of the drive shaft (200). The bearing (400) is located in the sealed space (101), and the outlet of the oil outlet (220) is located above the bearing (400).

4. The vacuum degasser rotor sealing and lubrication structure according to claim 2, characterized in that, The seal (300) includes: An end cap (310) is detachably disposed at one end of the sleeve (100), the end cap (310) having a first through hole for the drive shaft (200) to pass through; A sealing ring (320) is provided on the end cover (310), and the inner wall of the sealing ring (320) is rotatably sealed to the drive shaft (200).

5. The vacuum degasser rotor sealing and lubrication structure according to claim 1, characterized in that, Also includes: The oil nozzle (500) is located at the inlet of the oil filling hole (210).

6. The vacuum degasser rotor sealing and lubrication structure according to claim 5, characterized in that, The oil outlet (220) is inclined relative to the axis of the drive shaft (200). The oil outlet (220) has a first end (221) and a second end (222). The first end (221) is located at the bottom of the oil injection hole (210), and the second end (222) is located in the sealing space (101). The first end (221) is closer to the oil injection nozzle (500) than the second end (222).

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