Sealing assembly suitable for stirring shaft of stirring speed reducer

Abstract

The utility model relates to the technical field of stirring speed reducers, in particular to a sealing assembly suitable for a stirring shaft of a stirring speed reducer. A stirring shaft is installed at the left end of the stirring speed reducer, a sealing cover is installed on the left side of the stirring speed reducer, multiple sets of threaded holes are annularly formed in the right end of the sealing cover, multiple sets of bolts are inserted into the threaded holes and fixedly connected with the stirring speed reducer, and a circulation assembly is rotationally installed in the sealing cover. In the operation process of the stirring speed reducer and the stirring shaft, lubricating oil on the stirring shaft drips in the rotating operation of the sealing cover, the lubricating oil drips on the inner wall of the movable ring, then the movable ring is driven to rotate through the two sets of teeth on the sealing cover, and the rotating ring rotates to rotate the lubricating oil dripped on the stirring shaft to the position over the stirring shaft from the bottom. And the lubricating oil on the inner wall of the movable ring drips on the stirring shaft, so that the lubricating oil is recycled, the loss of the lubricating oil is greatly reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring reducers, in particular to a sealing component suitable for a stirring shaft of a stirring reducer. Background Art

[0002] Mechanical seal is a shaft sealing device for rotating machinery. For example, centrifugal pumps, centrifuges, reactors and compressors. Since the transmission shaft runs through the inside and outside of the equipment, there is a circumferential gap between the shaft and the equipment. The medium in the equipment leaks outward through the gap. If the pressure inside the equipment is lower than the atmospheric pressure, the air leaks into the equipment. Therefore, there must be a shaft sealing device to prevent leakage. There are many types of shaft seals. Since mechanical seals have the advantages of less leakage and long life, mechanical seals are the most important shaft sealing method in these equipment in the world. In the relevant national standards, it is defined as follows: a device for preventing fluid leakage composed of at least one pair of end faces perpendicular to the axis of rotation, which are kept in contact and slide relative to each other under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of auxiliary seals. The shaft sealing structure of the existing mixing reducer will be injected with lubricating oil during use to reduce the friction between the parts. However, the equipment will cause leakage of lubricating oil during long-term operation, which will cause wear and loss of the seals during long-term operation, thereby affecting the sealing inside the reducer. For this reason, we propose a sealing component suitable for the mixing shaft of the mixing reducer to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a sealing assembly suitable for the stirring shaft of a stirring reducer, so as to solve the problem that the equipment proposed in the above background technology will cause leakage of lubricating oil during long-term operation, which will cause wear and loss of the seals during long-term operation, thereby affecting the sealing of the reducer.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing assembly suitable for a stirring shaft of a stirring reducer, comprising a stirring reducer;

[0005] A stirring shaft is installed at the left end of the stirring reducer, a sealing cover is installed on the left side of the stirring reducer, a plurality of threaded holes are arranged in a ring at the right end of the sealing cover, a plurality of bolts are inserted in the threaded holes to be fixedly connected with the stirring reducer, and a circulation component is rotatably installed in the sealing cover.

[0006] Preferably, the circulation component includes two groups of fixed rings, the two groups of fixed rings are fixedly installed in the sealing cover, a movable ring is rotatably installed between the two groups of fixed rings, teeth are provided at the left and right ends of the movable ring where they are in contact with the outer wall of the stirring shaft and on the outer wall of the stirring shaft, and multiple groups of partitions are annularly arranged on the inner wall of the movable ring.

[0007] Preferably, the inner wall of the dynamic ring is arc-shaped, and the diameter of the inner wall of the dynamic ring is larger than the diameter of the outer wall of the sealing cover.

[0008] Preferably, a bearing is installed in the left end of the sealing cover, and the bearing is in contact with the outer wall of the stirring shaft.

[0009] Preferably, annular grooves are provided on the outer walls at both ends of the movable ring, multiple groups of first through holes are provided in annular shapes on the inner walls at both ends of the movable ring, the multiple groups of first through holes are connected to the two groups of annular grooves, a second through hole is provided at the upper end of the threaded hole, and an insert block is movably inserted in the second through hole.

[0010] Preferably, the outer wall surface of the dynamic ring is arc-shaped, and there is a gap between the outer wall of the dynamic ring and the inner wall of the threaded hole.

[0011] Compared with the prior art, the utility model has the following beneficial effects: during the operation of the agitator reducer and the agitator shaft in the utility model, the lubricating oil on the agitator shaft drips during the rotation of the sealing cover, and the lubricating oil drips onto the inner wall of the moving ring, and then the two sets of teeth on the sealing cover drive the moving ring to rotate. The rotation of the moving ring causes the lubricating oil dripping on the agitator shaft to rotate from the bottom to just above the agitator shaft, so that the lubricating oil on the inner wall of the moving ring drips onto the agitator shaft, thereby achieving the recycling of the lubricating oil, greatly reducing the loss of the lubricating oil, and increasing the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of a front cross-section of the structure of the utility model;

[0015] Figure 3 It is a left-side cross-sectional schematic diagram of the structure of the utility model;

[0016] Figure 4 For this utility model Figure 2 A is a partial enlarged schematic diagram;

[0017] Figure 5 For this utility model Figure 3 A partial enlarged schematic diagram of B in the figure.

[0018] In the figure: 1. stirring reducer; 2. stirring shaft; 3. sealing cover; 4. threaded hole; 5. fixed ring; 6. moving ring; 7. bearing; 8. teeth; 9. annular groove; 10. first through hole; 11. second through hole; 12. plug block; 13. partition. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-5 , the utility model provides an embodiment: a sealing assembly suitable for a stirring shaft of a stirring reducer, comprising a stirring reducer 1;

[0021] A stirring shaft 2 is installed at the left end of the stirring reducer 1, a sealing cover 3 is installed on the left side of the stirring reducer 1, a plurality of threaded holes 4 are provided in a ring at the right end of the sealing cover 3, a plurality of bolts are inserted in the threaded holes 4 and fixedly connected to the stirring reducer 1, a circulation component is rotatably installed in the sealing cover 3, and the device drives the circulation component to rotate through the stirring shaft 2, so that the lubricating oil dripping on the stirring shaft 2 is dripped back on the upper side of the stirring shaft 2, which is convenient for recycling the lubricating oil;

[0022] Furthermore, the circulation component includes two groups of fixed rings 5, which are fixedly installed in the sealing cover 3, and a moving ring 6 is rotatably installed between the two groups of fixed rings 5. Teeth 8 are provided at the left and right ends of the moving ring 6 where the outer wall of the stirring shaft 2 is in contact with the moving ring 2 and on the outer wall of the stirring shaft 2. A plurality of partitions 13 are annularly provided on the inner wall of the moving ring 6. This structure drives the moving ring 6 to rotate through the teeth 8 on the outer wall of the stirring shaft 2. The rotation of the moving ring 6 moves the lower inner wall to the upper side of the stirring shaft 2, so that the lubricating oil on the inner wall of the moving ring 6 drips back onto the outer wall of the stirring shaft 2.

[0023] Furthermore, the inner wall of the moving ring 6 is arc-shaped, and the diameter of the inner wall of the moving ring 6 is larger than the diameter of the outer wall of the sealing cover 3. This structure, based on the shape of the inner wall of the moving ring 6, allows the lubricating oil on the stirring shaft 2 to accumulate on the inner wall of the moving ring 6 when the lubricating oil drips on the inner wall of the moving ring 6, thereby preventing the lubricating oil from dripping on the inner wall of the moving ring 6 and flowing to the left and right sides.

[0024] Furthermore, a bearing 7 is installed in the left end of the sealing cover 3, and the bearing 7 is in contact with the outer wall of the stirring shaft 2. This structure reduces the friction and loss caused by the rotation of the stirring shaft 2 at the connection between the left end of the sealing cover 3 and the stirring shaft 2 through the bearing 7.

[0025] Furthermore, annular grooves 9 are provided on the outer walls at both ends of the movable ring 6, and multiple groups of first through holes 10 are provided in annular shapes on the inner walls at both ends of the movable ring 6. The multiple groups of first through holes 10 are connected to the two groups of annular grooves 9. A second through hole 11 is provided at the upper end of the threaded hole 4, and an insert 12 is movably inserted in the second through hole 11. This structure injects the lubricating oil into the threaded hole 4 from the second through hole 11, and the lubricating oil injected into the threaded hole 4 drips on the surface of the movable ring 6 and flows out through the two groups of annular grooves 9 and the multiple groups of first through holes 10 and drips on the outer wall of the stirring shaft 2.

[0026] Furthermore, the outer wall surface of the moving ring 6 is arc-shaped, and there is a gap between the outer wall of the moving ring 6 and the inner wall of the threaded hole 4. This structure allows the lubricating oil injected into the sealing cover 3 to drip onto the outer wall of the moving ring 6 according to the shape of the outer wall of the moving ring 6, and the lubricating oil flows to the left and right ends of the moving ring 6.

[0027] Working principle: When transporting the mixing reducer 1 and the mixing shaft 2, Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, during the operation and rotation of the stirring shaft 2, the lubricating oil on the stirring shaft 2 drips onto the inner surface of the moving ring 6, and the stirring shaft 2 rotates through the teeth 8 meshing with the moving ring 6 to drive the moving ring 6 to rotate. The moving ring 6 rotates through multiple groups of partitions 13 to move the lubricating oil on the lower inner wall of the moving ring 6 to just above the stirring shaft 2, and then the lubricating oil on the inner wall of the moving ring 6 drips back onto the surface of the stirring shaft 2, so that the lubricating oil can be recycled. When applying lubricating oil to the stirring shaft 2, the plug 12 is removed from the second through hole 11, and the lubricating oil is injected into the threaded hole 4 from the second through hole 11. The lubricating oil injected into the threaded hole 4 drips onto the outer wall of the moving ring 6, and the lubricating oil flows to the left and right sides on the moving ring 6 and enters the two groups of annular grooves 9. The lubricating oil flows in the two groups of annular grooves 9 and flows out from the multiple groups of first through holes 10 and drips onto the surface of the stirring shaft 2. The above is the entire working principle of the utility model.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A sealing assembly suitable for a stirring shaft of a stirring reducer, comprising a stirring reducer (1); Features: A stirring shaft (2) is installed at the left end of the stirring reducer (1), a sealing cover (3) is installed on the left side of the stirring reducer (1), a plurality of groups of threaded holes (4) are provided in an annular shape at the right end of the sealing cover (3), a plurality of groups of bolts are inserted into the threaded holes (4) to be fixedly connected to the stirring reducer (1), and a circulation component is rotatably installed in the sealing cover (3).

2. A sealing assembly suitable for a stirring shaft of a stirring reducer according to claim 1, characterized in that: The circulation assembly comprises two groups of fixed rings (5), the two groups of fixed rings (5) are fixedly mounted in the sealing cover (3), a moving ring (6) is rotatably mounted between the two groups of fixed rings (5), teeth (8) are arranged at the places where the left and right ends of the moving ring (6) are in contact with the outer wall of the stirring shaft (2) and on the outer wall of the stirring shaft (2), and a plurality of groups of partitions (13) are arranged in an annular shape on the inner wall of the moving ring (6).

3. A sealing assembly suitable for a stirring shaft of a stirring reducer according to claim 2, characterized in that: The inner wall of the moving ring (6) is arc-shaped, and the diameter of the inner wall of the moving ring (6) is greater than the diameter of the outer wall of the sealing cover (3).

4. A sealing assembly suitable for a stirring shaft of a stirring reducer according to claim 2, characterized in that: A bearing (7) is installed inside the left end of the sealing cover (3), and the bearing (7) is in contact with the outer wall of the stirring shaft (2).

5. The sealing assembly for a stirring shaft of a stirring reducer according to claim 2, characterized in that: Annular grooves (9) are provided on the outer walls at both ends of the movable ring (6), and multiple groups of first through holes (10) are provided in annular shapes on the inner walls at both ends of the movable ring (6). The multiple groups of first through holes (10) are connected to the two groups of annular grooves (9). A second through hole (11) is provided at the upper end of the threaded hole (4), and an insert block (12) is movably inserted into the second through hole (11).

6. A sealing assembly suitable for a stirring shaft of a stirring reducer according to claim 2, characterized in that: The outer wall surface of the movable ring (6) is arc-shaped, and there is a gap between the outer wall of the movable ring (6) and the inner wall of the threaded hole (4).

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