Split oil seal and connecting structure thereof

Abstract

The utility model discloses a split oil seal and a connecting structure thereof, which belong to the technical field of metallurgical equipment and comprise an annular body and a fracture. Two ends of the fracture are movably connected; a groove and a bulge are respectively arranged on the combined surfaces at the two ends of the fracture and are in socket fit with each other, and a labyrinth seal is formed at a seam; the mounting structure comprises a bearing seat, a shaft fixed on the bearing seat through a bearing, a fixed disc fixedly connected to the bearing seat, and a split oil seal mounted in a groove of the fixed disc. According to the utility model, the purpose of quick installation and replacement can be achieved, the labor efficiency can be greatly improved, and higher benefits can be created.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to a split oil seal and its connection structure. Background Art

[0002] An oil seal is the common name for a general seal, which simply means the seal of lubricating oil. It is a mechanical component used to seal grease (oil is the most common liquid substance in the transmission system, and generally refers to any liquid substance). It separates the parts that need lubrication in the transmission components from the output components, so as to prevent the lubricating oil from leaking. The common form of an oil seal is a closed-type skeleton oil seal, which consists of a metal skeleton, oil-resistant rubber and other components. In industrial production, the common equipment oil leakage is due to the failure or wear of the oil seal, resulting in the inability to seal the grease and seeping out from the shaft end. If not handled in time, it is very easy to cause poor equipment lubrication and thus lead to equipment failures.

[0003] However, for some large units and large equipment, when it is necessary to replace the oil seal, it is often necessary to disassemble relevant components, which is a cumbersome process with a large workload and takes a long time, having a greater impact on production. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a split oil seal and its connection structure, which can achieve the purpose of quick installation and replacement, greatly improve labor efficiency and create higher benefits.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A split oil seal includes an annular body and a break; the two ends at the break are movably connected; grooves and protrusions are respectively arranged on the joint surfaces at the two ends of the break, and the two are inserted and matched to form a labyrinth seal at the joint.

[0007] A further improvement of the technical solution of the utility model lies in that: the movable connection mode at the break of the split oil seal is lapping.

[0008] A further improvement of the technical solution of the utility model lies in that: the movable connection mode at the break of the split oil seal is plugging.

[0009] A connection structure of a split oil seal includes a bearing seat, a shaft fixed on the bearing seat through a bearing, a fixed disk fixedly connected to the bearing seat, and a split oil seal installed in the groove of the fixed disk.

[0010] A further improvement of the technical solution of the utility model lies in that: a plurality of positioning pins concentric with the fixed disk are further arranged on the fixed disk, and distance pieces are installed on the positioning pins.

[0011] Due to the adoption of the above technical solution, the technical progress obtained by the utility model is:

[0012] 1. In the present utility model, by providing a connection structure for a split oil seal, it can ensure that the oil seal, the fixed disk and the shaft are completely concentric, and the lip of the oil seal contacts the shaft at an equal distance, avoiding the situation that due to the offset of the oil seal from the center of the shaft, the lip is pressed too tightly against the shaft at individual points, resulting in rapid wear of the oil seal and leakage due to the failure of the oil seal, or the gap between individual points and the shaft is too large to seal the grease.

[0013] 2. In the present utility model, due to the adoption of a split oil seal structure, when installing the oil seal, it is not necessary to disassemble components such as the coupling or load at the shaft end, the procedure is greatly simplified, the replacement processing time is shortened, and greater benefits are brought. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of a split oil seal;

[0015] Figure 2 is a sectional view taken along line A - A of a split oil seal;

[0016] Figure 3 is an application scenario and installation schematic diagram of a split oil seal;

[0017] Among them, 1. Bearing housing; 2. Fixed disk; 3. Split oil seal; 4. Shaft; 5. Spacer; 6. Dowel pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further describes the present utility model in detail with reference to the drawings and embodiments:

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0020] In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0021] Such as Figure 1 、 2As shown in the figure, a split oil seal includes an annular body and a fracture; both ends at the fracture are movably connected; grooves and protrusions are respectively arranged on the joint surfaces at both ends of the fracture, and the two are inserted and matched. On the one hand, it can make the connection more reliable, and on the other hand, it can form a labyrinth seal at the joint to ensure the sealing effect and prevent lubricating grease and the like from leaking out from the joint.

[0022] The movable connection method at the fracture of a split oil seal includes lapping or plugging.

[0023] As Figure 3 As shown in the figure, a connection structure of a split oil seal includes a bearing seat 1, a shaft 4 fixed on the bearing seat 1 through a bearing, a fixed disk 2 fixedly connected to the bearing seat 1, and a split oil seal 3 installed in a groove of the fixed disk 2;

[0024] The shaft 4 is the main transmission component of the equipment and is fixed on the bearing seat 1 by a bearing.

[0025] The fixed disk 2 is the carrier of the oil seal and is made according to the actual on-site surveying and mapping. The fixed disk 2 is composed of two upper and lower semi-rings. After installation, it is a complete circle both inside and outside. The fixing holes on it are drilled in cooperation with the screw holes on the bearing seat 1, and the diameter of the fixing holes is slightly enlarged to ensure that the position of the fixed disk 2 on the bearing seat 1 can be finely adjusted; the fixed disk 2 is fixed on the bearing seat 1 by bolts.

[0026] There are also 3 positioning pins 6 concentric with the fixed disk on the fixed disk 2. A distance piece 5 is installed on the positioning pins 6. The distance piece 5 can be detachably recycled. It is installed when installing and replacing the oil seal and removed after the oil seal is installed for the next use.

[0027] Usage method:

[0028] First step, install the fixed disk 2 on the bearing seat 1, and do not tighten the bolts first; second step, put the split oil seal 3 on the shaft 4, insert and connect and press the fracture, and make the connection part directly above the shaft; third step, slowly push the split oil seal 3 along the shaft 4 into the groove of the fixed disk 2 until the split oil seal 3 completely enters the groove and is flush with the outer surface of the fixed disk 2; fourth step, install the distance piece 5 on the positioning pins 6, measure the gap between the end of each distance piece 5 and the shaft with a feeler gauge, and by adjusting the position of the fixed disk 2, when the gaps between the ends of each distance piece 5 and the shaft are equal, tighten the bolts of the fixed disk 2; fifth step, remove the distance piece 5 and keep it. The oil seal installation is completed.

[0029] Through the above installation method, it can be ensured that the split oil seal 3, the fixed disk 2 and the shaft are completely concentric, and the lip of the oil seal contacts the shaft 4 at an equal distance, avoiding that due to the offset of the oil seal from the center of the shaft, the lip is pressed too tightly against the shaft at individual points, resulting in rapid wear of the oil seal and leakage due to the failure of the oil seal, or the gap at individual points is too large to seal the grease. More importantly, due to the use of the split oil seal 3 structure, it is not necessary to disassemble components such as the coupling or load at the shaft end when installing the oil seal, the procedure is greatly simplified, the replacement processing time is shortened, and greater benefits are brought.

Claims

1. A split oil seal, characterized in that: It includes an annular body and a fracture; both ends at the fracture are movably connected; grooves and protrusions are respectively arranged on the joint surfaces at both ends of the fracture, and the two are inserted and matched to form a labyrinth seal at the joint.

2. The split oil seal according to claim 1, wherein: The movable connection method at the fracture of the split oil seal (3) is lapping.

3. The split oil seal according to claim 1, characterized in that: The movable connection method at the fracture of the split oil seal (3) is plugging.

4. A connecting structure of a split oil seal, characterized in that: When using the split oil seal according to any one of claims 1 to 3, it includes a bearing housing (1), a shaft (4) fixed on the bearing housing (1) through a bearing, a fixed disk (2) fixedly connected to the bearing housing (1), and a split oil seal (3) installed in the groove of the fixed disk (2).

5. The connecting structure of the split oil seal according to claim 4, characterized in that: A number of positioning pins (6) concentric with the fixed disk are further arranged on the fixed disk (2), and a spacer (5) is installed on the positioning pins (6).

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