Hub bearing sealing structure of agricultural machine

Abstract

The utility model discloses an agricultural machine hub bearing sealing structure, and relates to the technical field of engineering elements or parts. The hub bearing sealing structure of the agricultural machine comprises a bottom ring, a connecting ring and a sealing sleeve, the sealing assembly is arranged on the connecting ring and the sealing sleeve and comprises a sealing ring, a first cylinder, a circular truncated cone piece, a second cylinder piece, a second hole, a tight ring and a rubber ring, the sealing ring is welded to the sealing sleeve, the rubber ring is fixedly sleeved with the connecting ring, the tight ring is fixedly sleeved with the rubber ring, and the second hole is formed in the tight ring; a groove is formed in the sealing assembly, a first cylinder is welded to a circular truncated cone part, the size of the first cylinder is larger than that of a second cylinder part, the second cylinder part is welded to the circular truncated cone part, the groove is driven by an external tool to move, and therefore the circular truncated cone part is driven to move to be separated from the interior of a second hole, and then a sealing ring does not make close contact with a shaft any more; therefore, the difficulty of detaching the sealing assembly is greatly reduced, and the detaching and overhauling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering elements or components, in particular to a hub bearing sealing structure for agricultural machinery. Background Art

[0002] Bearing seal assemblies are seals used for bearings. They have the characteristics of preventing grease fires, avoiding frequent refueling and having a simple structure. They are widely used on bearings. After the bearing seal assembly is fixed to the bearing, it is fixed in the form of filling the gap, resulting in large friction and difficulty in disassembly and maintenance. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a sealing structure for a wheel hub bearing of an agricultural machinery, which can solve the problem that the fixing is performed in the form of filling the gap, resulting in large friction and difficulty in disassembly and maintenance.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an agricultural machinery wheel hub bearing sealing structure, comprising a bottom ring, a connecting ring and a sealing sleeve;

[0005] The sealing assembly is arranged on the connecting ring and the sealing sleeve. The sealing assembly includes a sealing ring, a cylinder 1, a truncated table part, a cylinder 2, a hole 2, a tight ring and a rubber ring. The sealing ring is welded to the sealing sleeve, the connecting ring is fixedly sleeved on the rubber ring, the rubber ring is fixedly sleeved on the tight ring, and the hole 2 is opened on the tight ring.

[0006] Preferably, the cylinder one is welded on the truncated table component, the size of the cylinder one is larger than the size of the cylinder two, the cylinder two is welded on the truncated table component, and the cylinder two is stuck in the inside of the hole two.

[0007] Preferably, a hole one is formed on the surface of the rubber ring, and the size of the hole one is larger than the size of the cylinder one.

[0008] Preferably, a thread groove is provided on the surface of the connecting ring, and a thread column is threadedly connected to the inner surface of the thread groove, and the size of the thread column is larger than the size of the second hole.

[0009] Preferably, a groove is formed on the surface of the threaded column, and the bottom ring is welded to the connecting ring.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The agricultural machinery wheel hub bearing sealing structure is provided with a groove in the sealing component, and the groove is driven to move by an external tool, thereby driving the round table component to move and detach from the interior of the second hole. Subsequently, the sealing ring is no longer in close contact with the shaft, thereby greatly reducing the difficulty of disassembling the sealing component and improving the efficiency of disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

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

[0014] Figure 2 This is a schematic diagram of the position relationship between the connecting ring and the threaded column of the utility model;

[0015] Figure 3 This is a schematic diagram of the interior of the connecting ring of the utility model;

[0016] Figure 4 It is an overall schematic diagram of the threaded column of the utility model;

[0017] Figure 5 For this utility model Figure 3 Enlarged schematic diagram at point A in the middle.

[0018] Figure numerals: 1. bottom ring; 2. connecting ring; 3. sealing ring; 4. sealing sleeve; 5. threaded column; 6. cylinder one; 7. frustum; 8. cylinder two; 9. groove; 10. threaded groove; 11. hole one; 12. hole two; 13. tight ring; 14. rubber ring. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0020] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] See also Figure 1-5 , the utility model provides a technical solution: a sealing structure of a wheel hub bearing of an agricultural machinery, comprising a bottom ring 1, a connecting ring 2 and a sealing sleeve 4;

[0024] The sealing assembly is arranged on the connecting ring 2 and the sealing sleeve 4, and the sealing assembly includes a sealing ring 3, a cylinder 1 6, a truncated table part 7, a cylindrical part 2 8, a hole 2 12, a tight ring 13 and a rubber ring 14. The sealing ring 3 is welded to the sealing sleeve 4, the connecting ring 2 is fixedly sleeved on the rubber ring 14, the rubber ring 14 is fixedly sleeved on the tight ring 13, and the hole 2 12 is opened on the tight ring 13.

[0025] The cylinder 1 6 is welded on the truncated table member 7 . The size of the cylinder 1 6 is larger than that of the cylinder 2 8 . The cylinder 2 8 is welded on the truncated table member 7 . The cylinder 2 8 is stuck in the inside of the hole 2 12 .

[0026] A hole 11 is formed on the surface of the rubber ring 14 , and the size of the hole 11 is larger than the size of the cylinder 1 6 .

[0027] A thread groove 10 is formed on the surface of the connecting ring 2 , and a thread column 5 is threadedly connected to the inner surface of the thread groove 10 . The size of the thread column 5 is larger than the size of the second hole 12 .

[0028] A groove 9 is formed on the surface of the threaded column 5 , and the bottom ring 1 is welded to the connecting ring 2 .

[0029] When it is necessary to install the bearing seal assembly;

[0030] First, the bottom ring 1 is driven to move by external force, the movement of the bottom ring 1 drives the connecting ring 2 to move, the movement of the connecting ring 2 drives the rubber ring 14 to move, the movement of the rubber ring 14 drives the tight ring 13 to move, and the tight ring 13 moves to the position to be sealed.

[0031] Secondly, the sealing sleeve 4 is driven to move by an external force, and the movement of the sealing sleeve 4 drives the sealing ring 3 to move, and the sealing ring 3 moves to the inside of the tight ring 13 .

[0032] Finally, the groove 9 is driven to move by an external tool, the movement of the groove 9 drives the threaded column 5 to move, the movement of the threaded column 5 drives the cylinder 1 6 to move, the movement of the cylinder 1 6 drives the truncated table part 7 to move, the movement of the truncated table part 7 drives the cylindrical part 2 8 to move until the truncated table part 7 leaves the interior of the hole 2 12, the hole 2 12 shrinks, and the tight ring 13 squeezes the sealing ring 3 to fix the sealing assembly on the shaft.

[0033] When it is necessary to disassemble the bearing seal assembly;

[0034] First, the groove 9 is driven to move by an external force, and the movement of the groove 9 drives the threaded column 5 to move. The movement of the threaded column 5 drives the cylinder 1 6 to move until it is stuck in the inside of the hole 2 12 to expand the size of the hole 2 12. The expansion of the hole 2 12 drives the tight ring 13 to expand, and the expansion of the tight ring 13 drives the rubber ring 14 to be compressed, and the expansion of the tight ring 13 is no longer in close contact with the sealing ring 3.

[0035] Next, take out the sealing sleeve 4 to drive the sealing ring 3 to move away from the surface of the shaft.

[0036] By setting a groove 9 in the sealing assembly, the groove 9 is driven to move by an external tool, thereby driving the truncated table member 7 to move out of the interior of the hole 2 12. Subsequently, the sealing ring 3 is no longer in close contact with the shaft, thereby greatly reducing the difficulty of disassembling the sealing assembly and improving the efficiency of disassembly and maintenance.

[0037] By providing the rubber ring 14, the rubber ring 14 has elasticity and can adaptively fill the gap between the tight ring 13 according to the size of the tight ring 13, thereby ensuring the overall consistency of the sealing assembly, that is, ensuring the airtightness of the sealing structure.

[0038] Working principle:

[0039] When it is necessary to install the bearing seal assembly;

[0040] First, the bottom ring 1 is driven to move by external force, the bottom ring 1 drives the connecting ring 2 to move, the connecting ring 2 drives the rubber ring 14 to move, the rubber ring 14 drives the tight ring 13 to move, and the tight ring 13 moves to the position to be sealed.

[0041] Secondly, the sealing sleeve 4 is driven to move by an external force, and the movement of the sealing sleeve 4 drives the sealing ring 3 to move, and the sealing ring 3 moves to the inside of the tight ring 13 .

[0042] Finally, an external tool is used to drive the groove 9 to move, the groove 9 drives the threaded column 5 to move, the threaded column 5 drives the cylinder 1 6 to move, the cylinder 1 6 drives the truncated table part 7 to move, the truncated table part 7 drives the cylinder 2 8 to move until the truncated table part 7 leaves the inside of the hole 2 12, the hole 2 12 shrinks, and the tight ring 13 squeezes the sealing ring 3 to fix the sealing assembly on the shaft.

[0043] When it is necessary to disassemble the bearing seal assembly;

[0044] First, the groove 9 is driven to move by an external force, and the groove 9 drives the threaded column 5 to move. The threaded column 5 drives the cylinder 1 6 to move until it is stuck in the inside of the hole 2 12 to expand the size of the hole 2 12. The expansion of the hole 2 12 drives the tight ring 13 to expand, and the expansion of the tight ring 13 drives the rubber ring 14 to be compressed, and the expansion of the tight ring 13 is no longer in close contact with the sealing ring 3.

[0045] Next, take out the sealing sleeve 4 to drive the sealing ring 3 to move away from the surface of the shaft.

[0046] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An agricultural machinery wheel hub bearing sealing structure, characterized in that: include: A bottom ring (1), a connecting ring (2) and a sealing sleeve (4); The sealing assembly is arranged on the connecting ring (2) and the sealing sleeve (4), and comprises a sealing ring (3), a cylindrical body (6), a truncated table member (7), a cylindrical body (8), a second hole (12), a tight ring (13) and a rubber ring (14); the sealing ring (3) is welded to the sealing sleeve (4), the connecting ring (2) is fixedly sleeved on the rubber ring (14), the rubber ring (14) is fixedly sleeved on the tight ring (13), and the second hole (12) is provided on the tight ring (13).

2. The agricultural machinery wheel hub bearing sealing structure according to claim 1, characterized in that: The cylindrical body 1 (6) is welded to the truncated table member (7); the size of the cylindrical body 1 (6) is larger than the size of the cylindrical body 2 (8); the cylindrical body 2 (8) is welded to the truncated table member (7); and the cylindrical body 2 (8) is stuck inside the hole 2 (12).

3. The agricultural machinery wheel hub bearing sealing structure according to claim 1, characterized in that: A hole one (11) is provided on the surface of the rubber ring (14), and the size of the hole one (11) is larger than the size of the cylinder one (6).

4. The agricultural machinery wheel hub bearing sealing structure according to claim 1, characterized in that: The surface of the connecting ring (2) is provided with a thread groove (10), the inner surface of the thread groove (10) is threadedly connected with a thread column (5), and the size of the thread column (5) is larger than the size of the second hole (12).

5. The agricultural machinery wheel hub bearing sealing structure according to claim 4, characterized in that: A groove (9) is provided on the surface of the threaded column (5), and the bottom ring (1) is welded to the connecting ring (2).

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