Large gear ring sealing structure of rotary kiln

Abstract

The utility model relates to the technical field of machinery, in particular to a rotary kiln large gear ring sealing structure which comprises a large gear ring, a large gear ring cover, a first labyrinth sealing ring, an adjustable rubber plate and a second labyrinth sealing ring, the second labyrinth sealing ring is combined on the large gear ring through a bolt, the first labyrinth sealing ring is rolled into a ring shape and welded to a large magnetic ring cover, and the adjustable rubber plate is welded to the large magnetic ring cover. The large gear ring cover covers the outer wall of the large gear ring, and the adjustable rubber plate is locked on the outer wall of the large gear ring cover through a bolt. The installation mode of the double labyrinth seal and the adjustable rubber plate is adopted, the double labyrinth seal enables waste oil to flow back to an oil tank of the large gear ring cover along the labyrinth ring, and the adjustable rubber plate can prevent external dust from entering the large gear ring cover to pollute lubricating oil.

Description

Technical Field

[0001] The utility model relates to the technical field of iron and steel equipment, and particularly relates to a sealing structure for a large gear ring of a rotary kiln. Background Technique

[0002] The waste oil after lubricating the large gear ring of the rotary kiln will flow out along the end face of the large gear ring. In order not to pollute the environment with the waste oil, there is a device for sealing and collecting the waste oil on the large gear ring cover. The existing sealing structure of the large gear ring uses a rubber plate that is bent and pressed on the large gear ring cover for pressure sealing. However, since the rubber plate rotates with the large gear ring and rubs against the large gear ring cover, the sealing effect decreases after long-term wear and the waste oil leaks out, polluting the working place of the rotary kiln. Content of the Utility Model

[0003] In order to solve the above-mentioned existing problems, the utility model designs a sealing structure for a large gear ring of a rotary kiln.

[0004] In order to achieve the above technical purpose and reach the above technical effect, the utility model is realized by the following technical solutions:

[0005] A sealing structure for a large gear ring of a rotary kiln, comprising a large gear ring, a large gear ring cover, a labyrinth seal ring I, an adjustable rubber plate and a labyrinth seal ring II.

[0006] The labyrinth seal ring II is bolted to the large gear ring, the labyrinth seal ring I is rolled into a ring shape and welded to the large gear ring cover, the large gear ring cover covers the outer wall of the large gear ring, and the adjustable rubber plate is locked to the outer wall of the large gear ring cover by bolts.

[0007] Further, the labyrinth seal ring II bolted to the large gear ring and the labyrinth seal ring I welded to the gear ring cover form a mechanical seal.

[0008] Further, the inner end of the adjustable rubber plate is in contact with the labyrinth seal ring II.

[0009] The beneficial effect of the utility model is:

[0010] The utility model adopts the installation methods of double labyrinth seals and an adjustable rubber plate. The double labyrinth seals enable the waste oil to flow back to the oil tank of the large gear ring cover along the labyrinth ring, and the adjustable rubber plate can prevent external dust from entering the large gear ring cover and polluting the lubricating oil. Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0012] Figure 1 This is the structural schematic diagram of the present utility model.

[0013] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0014] 1. Large gear ring, 2. Large gear ring cover, 3. Labyrinth seal ring I, 4. Adjustable rubber plate, 5. Labyrinth seal ring II. Specific embodiments

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present utility model.

[0016] Refer to Figure 1 As shown, a sealing structure for the large gear ring of a rotary kiln includes a large gear ring 1, a large gear ring cover 2, a labyrinth seal ring I 3, an adjustable rubber plate 4, and a labyrinth seal ring II 5.

[0017] The labyrinth seal ring II 5 is bolted to the large gear ring 1. The labyrinth seal ring I 3 is rolled into a ring shape and welded to the large gear ring cover 2. The large gear ring cover 2 covers the outer wall of the large gear ring 1. The adjustable rubber plate 4 is locked to the outer wall of the large gear ring cover 2 by bolts.

[0018] Further, the labyrinth seal ring II 5 bolted to the large gear ring 1 and the labyrinth seal ring I 3 welded to the gear ring cover 2 form a mechanical seal.

[0019] Further, the inner end of the adjustable rubber plate 4 is in contact with the labyrinth seal ring II 5.

[0020] The detailed connection means are well-known techniques in the art. All components in this solution are common standard parts or components known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or by conventional experimental methods.

[0021] A specific application of this embodiment is as follows:

[0022] The device uses the labyrinth seal ring II 5 to be installed on the large gear ring 1 and rotates together with the large gear ring 1. The labyrinth seal ring I 3 is fixed to the large gear ring cover 2 and does not rotate. An adjustable rubber plate 4 is installed on the large gear ring cover 2. After each wear of the adjustable rubber plate 4, the position of the adjustable rubber plate 4 is adjusted to reduce the labyrinth seal gap and prevent external dust from entering the seal housing.

[0023] Certainly, the above description is not a limitation to the present utility model, nor is the present utility model limited to the above examples. Any changes, alterations, additions or substitutions made by those of ordinary skill in the art within the scope of the essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A rotary kiln large gear ring sealing structure, characterized in that: It comprises a large gear ring (1), a large gear ring cover (2), a first labyrinth seal ring (3), an adjustable rubber plate (4) and a second labyrinth seal ring (5). The labyrinth seal ring 2 (5) is bolted to the large gear ring (1), the labyrinth seal ring 1 (3) is rolled into a ring shape and welded to the large magnetic ring cover (2), the large gear ring cover (2) covers the outer wall of the large gear ring (1), and the adjustable rubber plate (4) is fastened to the outer wall of the large gear ring cover (2) by bolts.

2. A rotary kiln large gear ring sealing structure according to claim 1, characterized in that: A second labyrinth seal ring (5) engaged with the large gear ring (1) and a first labyrinth seal ring (3) welded to the gear ring cover (2) form a mechanical seal.

3. The rotary kiln large gear ring sealing structure according to claim 1, characterized in that: The inner end of the adjustable rubber plate (4) is in contact with the second labyrinth sealing ring (5).

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