Installation structure of oil retainer for ventilator bearing box

Abstract

The utility model belongs to the technical field of oil slingers, and particularly relates to a mounting structure of an oil slinger for a ventilator bearing box, which comprises a shaft, a bearing box gland, a coupler and the oil slinger. The bearing box gland is sleeved on the outer side of the shaft, the coupler and the oil retainer are arranged in the bearing box gland, the coupler is sleeved on the outer side of the shaft, and the oil retainer is arranged on the outer side of the shaft between the bearing box gland and the coupler. The oil retainer has the advantages that the oil retainer is made of steel, and the service life of the oil retainer is longer than that of an oil retainer made of rubber; the oil retaining lip, the threaded hole and the inner hole are all machined precisely, and meanwhile, one side, far away from the shaft, of the sealing ring is meshed with the oil retaining lip, so that the oil retaining ring is high in precision, a gap between the oil retaining ring and a bearing box gland is uniform, the sealing effect is good, and oil leakage can be effectively prevented; the oil retainer is in threaded connection with the outer side of the coupler through the threaded hole, and the sealing performance is better compared with the mode that the oil retainer made of rubber is connected to a shaft in a sleeving mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil retaining rings, and in particular relates to a mounting structure of an oil retaining ring for a bearing box of a ventilator. Background Art

[0002] In the prior art, the base of the bearing box is filled with lubricating oil, and the bearing balls are immersed in the lubricating oil. As the equipment runs, the balls rotate at high speed and bring the lubricating oil into the bearing to play a lubricating role. Due to the relatively high rotation speed, the lubricating oil is easy to splash onto the inner wall of the box. The lubricating oil flows to the shaft and the bearing box cover and other parts due to the action of gravity. The lubricating oil on the surface of the shaft cannot seep out to the outside of the box due to the blocking effect of the oil retaining ring. There is an oil groove on the inner wall of the bearing cover. The lubricating oil flows into the oil groove along the inner wall and finally flows back to the base of the box. The oil retaining ring and the bearing box cover sealing ring form a rotating pair to play a sealing role. However, the existing oil retaining ring is made of rubber. Due to long-term contact with lubricating oil, it is easy to age and fail. At the same time, the oil retaining ring is tilted and arranged on the outside of the sealing ring. The gap with the sealing ring must be accurate during installation, which requires the operator to be relatively experienced. Therefore, an oil retaining ring for a bearing box that effectively prevents oil leakage, has a long service life, and is easy to install is particularly important. Utility Model Content

[0003] In view of the above problems, the utility model provides an installation structure of an oil deflector ring for a ventilator bearing box, comprising a shaft, a bearing box gland, a coupling and an oil deflector ring;

[0004] The bearing box cover is sleeved on the outside of the shaft, the coupling and the oil deflector are arranged in the bearing box cover, the coupling is sleeved on the outside of the shaft, the oil deflector is arranged on the outside of the shaft between the bearing box cover and the coupling, and the oil deflector is arranged horizontally.

[0005] Preferably, the oil deflector ring is provided with an oil deflector lip on a side close to the bearing box cover, the oil deflector ring is provided with a threaded hole on a side close to the coupling, and the oil deflector ring is provided with an inner hole between the oil deflector lip and the threaded hole.

[0006] Preferably, the bearing box cover is provided with a sealing ring on the side close to the oil deflector ring at the connection with the shaft, the sealing ring is rotatably connected to the inner side of the oil deflector ring, and the side of the sealing ring away from the shaft is engaged with the oil deflector lip.

[0007] Preferably, the coupling is provided with a thread on the outer side close to the oil deflector ring, and the oil deflector ring is threadedly connected to the outer side of the coupling through the threaded hole.

[0008] Preferably, the oil retaining ring is made of steel.

[0009] Preferably, the oil baffle lip, threaded hole and inner hole are all formed by precision machining.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] Compared with the existing technology, the oil retaining ring structure for the fan bearing box of the utility model is used.

[0012] (1) The oil retaining ring in the utility model is made of steel, which has a longer service life than the oil retaining ring made of rubber;

[0013] (2) The oil retaining lip, threaded hole and inner hole are all processed by precision machinery. At the same time, the side of the sealing ring away from the shaft engages with the oil retaining lip, so that the oil retaining ring of the utility model has high precision, uniform gap with the bearing box gland, and good sealing effect, which can effectively prevent oil leakage;

[0014] (3) The oil retaining ring in the utility model is threadedly connected to the outer side of the coupling through the threaded hole, which has better sealing performance than the oil retaining ring made of rubber material that is sleeved on the shaft, and the installation position of the oil retaining ring is fixed, which reduces the requirements for operators;

[0015] (4) The utility model's middle oil retaining ring has a long service life and good sealing performance, which reduces the number of on-site replacements and improves the operating rate of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments:

[0017] Figure 1 A schematic structural diagram of an oil retaining ring for a ventilator bearing housing provided in Example 1;

[0018] Figure 2 Schematic diagram of the oil deflector ring provided in Example 1;

[0019] Figure 3 This is a left side view of the oil deflector provided in Example 1;

[0020] Figure 4 This is a right side view of the oil deflector provided in Example 1;

[0021] Figure 5 A top view of the oil deflector ring provided in Example 1.

[0022] Description of reference numerals:

[0023] 1—shaft, 2—bearing box cover, 3—coupling, 4—oil deflector ring, 5—oil deflector lip, 6—threaded hole, 7—inner hole, 8—sealing ring. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1

[0027] The following combination Figure 1-Figure 5 The utility model is further described as follows. Figure 1-Figure 5 The installation structure of an oil retaining ring for a ventilator bearing box shown in the figure includes a shaft 1, a bearing box gland 2, a coupling 3 and an oil retaining ring 4.

[0028] like Figure 1-Figure 5 As shown, the bearing box cover 2 is sleeved on the outside of the shaft 1, the coupling 3 and the oil retaining ring 4 are arranged in the bearing box cover 2, the coupling 3 is sleeved on the outside of the shaft 1, and the oil retaining ring 4 is arranged on the outside of the shaft 1 between the bearing box cover 2 and the coupling 3, and the oil retaining ring 4 is arranged horizontally.

[0029] like Figure 1-Figure 5 As shown, the oil deflector ring 4 is provided with an oil deflector lip 5 on the side close to the bearing box cover 2, the oil deflector ring 4 is provided with a threaded hole 6 on the side close to the coupling 3, and the oil deflector ring 4 is provided with an inner hole 7 between the oil deflector lip 5 and the threaded hole 6.

[0030] like Figure 1-Figure 5 As shown, the bearing box cover 2 is provided with a sealing ring 8 on the side close to the oil retaining ring 4 at the connection with the shaft 1. The sealing ring 8 is rotatably connected to the inner side of the oil retaining ring 4, and the side of the sealing ring 8 away from the shaft 1 is engaged with the oil retaining lip 5.

[0031] like Figure 1-Figure 5 As shown, the outer side of the coupling 3 near the oil deflector 4 is provided with a thread, and the oil deflector 4 is threadedly connected to the outer side of the coupling 3 through the threaded hole 6.

[0032] like Figure 1-Figure 5 As shown, the oil thrower ring 4 is made of steel.

[0033] like Figure 1-Figure 5 As shown, the oil retaining lip 5, the threaded hole 6 and the inner hole 7 are all formed by precision machining.

[0034] The specific usage process is as follows:

[0035] As the equipment runs, the balls rotate at high speed and bring the lubricating oil into the bearing to lubricate it. At the same time, the lubricating oil splashes in the bearing box, and the oil retaining ring 4 prevents the lubricating oil from entering the gap between the shaft 1 and the bearing box cover 2.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A mounting structure for an oil retaining ring for a fan bearing box, characterized in that: It includes a shaft (1), a bearing box gland (2), a coupling (3) and an oil retaining ring (4); The bearing box cover (2) is sleeved on the outside of the shaft (1), the coupling (3) and the oil retaining ring (4) are arranged in the bearing box cover (2), the coupling (3) is sleeved on the outside of the shaft (1), the oil retaining ring (4) is arranged on the outside of the shaft (1) between the bearing box cover (2) and the coupling (3), and the oil retaining ring (4) is arranged horizontally; The oil retaining ring (4) is provided with an oil retaining lip (5) on a side close to the bearing box gland (2), the oil retaining ring (4) is provided with a threaded hole (6) on a side close to the coupling (3), and the oil retaining ring (4) is provided with an inner hole (7) between the oil retaining lip (5) and the threaded hole (6).

2. The installation structure of the oil retaining ring for the ventilator bearing box according to claim 1, characterized in that: The bearing box gland (2) is provided with a sealing ring (8) on the side close to the oil retaining ring (4) at the connection with the shaft (1); the sealing ring (8) is rotatably connected to the inner side of the oil retaining ring (4); and the side of the sealing ring (8) away from the shaft (1) is engaged with the oil retaining lip (5).

3. The installation structure of the oil retaining ring for the ventilator bearing box according to claim 2, characterized in that: The coupling (3) is provided with a thread on the outer side close to the oil retaining ring (4), and the oil retaining ring (4) is threadedly connected to the outer side of the coupling (3) through the threaded hole (6).

4. The installation structure of the oil retaining ring for the ventilator bearing box according to claim 3, characterized in that: The oil retaining ring (4) is made of steel.

5. The installation structure of the oil retaining ring for the ventilator bearing box according to claim 4, characterized in that: The oil retaining lip (5), threaded hole (6) and inner hole (7) are all formed through precision machining.

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