Novel protection structure for output end of main speed reducer of ring rolling machine

Abstract

The utility model discloses a novel protective structure for an output end of a main speed reducer of a ring rolling machine, which comprises ring rolling equipment and the main speed reducer, an input shaft of the ring rolling equipment is connected with an output shaft of the main speed reducer through a coupler, and the novel protective structure is mounted on the periphery of the coupler and comprises a protective cover and a waterproof cover. A protective cover is installed on a machine cover of the main speed reducer, the protective cover is higher than the coupler, a waterproof cover is fixedly installed on an input shaft of the ring rolling equipment through a set screw, a rubber sealing ring and a pressing plate, the top of the protective cover extends into the lower end of the waterproof cover, and the waterproof cover rotates along with the input shaft of the ring rolling machine. A first waterproof measure is formed by the waterproof cover and the protective cover, cooling water entering the protective cover is discharged by the drainage pipe, the liquid level of the cooling water in the protective cover cannot reach the upper surface of the oil seal in the transparent cover, a second waterproof measure is formed, and it is guaranteed that lubricating oil in a speed reducer box is not emulsified, and gears and bearings are not rusted.

Description

Technical Field

[0001] This utility model relates to a ring rolling machine, specifically to a novel protective structure at the output end of the main reducer of the ring rolling machine. Background Technology

[0002] As is well known, the rolling process is hot rolling. The rolls of the ring rolling mill will fail due to excessive surface temperature. Therefore, it is necessary to continuously spray cooling water onto the rolls to cool them down. This will cause a large amount of cooling water and oxide scale to rush into the output end of the main reducer of the ring rolling mill below. After long-term use, this will cause the oil seal at the output end to fail, water to enter the reducer cavity, resulting in the failure of the lubricating oil inside the gearbox, corrosion of the gear teeth, and affecting the life of the main reducer.

[0003] Currently, the output end of the traditional ring rolling mill main reducer has the following structural defects:

[0004] 1. The oil seal at the output shaft cannot reliably prevent cooling water and oxide scale;

[0005] 2. Replacing the oil seal at the output shaft requires disassembling the output shaft coupling, which is very troublesome. Summary of the Invention

[0006] The purpose of this utility model is to provide a new type of protective structure for the output end of the main reducer of a ring rolling mill, which effectively blocks external cooling water and oxide scale from the output end of the reducer, facilitates the inspection and maintenance of the reducer, and ensures that the lubricating oil in the reducer housing is not emulsified and that the gears and bearings are not corroded.

[0007] The technical solution of this utility model is: a novel protective structure at the output end of the main reducer of the ring rolling mill, including the ring rolling equipment and the main reducer. The input shaft of the ring rolling equipment is connected to the output shaft of the main reducer through a coupling. A novel protective structure is installed around the coupling. The feature is that the novel protective structure includes a protective cover and a waterproof cover. The protective cover is installed on the cover of the main reducer. The height of the protective cover is higher than the upper end of the coupling. The waterproof cover is installed and fixed on the input shaft of the ring rolling equipment through set screws, rubber sealing rings and pressure plates. The top of the protective cover extends into the lower end of the waterproof cover. The waterproof cover rotates with the input shaft of the ring rolling equipment.

[0008] Furthermore, the bottom of the protective cover is connected to a drain pipe.

[0009] Furthermore, the drainage height of the drain pipe is lower than the upper surface of the oil seal inside the cover.

[0010] Furthermore, both the waterproof cover and the protective cover adopt a split-type modular structure.

[0011] This utility model has the following advantages:

[0012] 1. The waterproof cover and protective cover adopt a split structure, which facilitates the installation of the output shaft coupling.

[0013] 2. During operation, the waterproof cover rotates with the input shaft of the rolling ring equipment, effectively blocking most of the external cooling water and oxide scale.

[0014] 3. The top of the protective cover extends into the lower part of the waterproof cover, and the waterproof cover covers the upper part of the protective cover. The waterproof cover and the protective cover together form the first waterproof measure to improve the protective effect.

[0015] 4. The waterproof cover is sealed with a rubber sealing ring to prevent cooling water from flowing into the protective cover along the input shaft of the rolling mill.

[0016] 5. The drainage height of the drain pipe is lower than the upper surface of the oil seal inside the cover. The drain pipe discharges a small amount of cooling water that enters the protective cover, so that the height of the cooling water retained inside the protective cover is always lower than the upper surface of the oil seal, forming a second waterproof measure.

[0017] 4. Simple structure, easy installation, and convenient adjustment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] In the diagram: 1 Input shaft of the ring rolling equipment, 2 Coupling, 3 Output shaft of the main reducer, 4 Protective cover, 5 Waterproof cover, 6 Machine cover, 7 Set screw, 8 Rubber sealing ring, 9 Pressure plate, 10 Drain pipe, 11 Transparent cover. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0021] like Figure 1 As shown, the novel protective structure at the output end of the main reducer of the ring rolling mill includes a ring rolling device and a main reducer. The input shaft 1 of the ring rolling device is connected to the output shaft 3 of the main reducer via a coupling 2. A novel protective structure is installed around the coupling 2. The novel protective structure includes a protective cover 4 and a waterproof cover 5. The protective cover 4 is installed on the cover 6 of the main reducer. The height of the protective cover 4 is higher than that of the coupling 2. The waterproof cover 5 is installed and fixed on the input shaft 1 of the ring rolling device via a set screw 7, a rubber sealing ring 8, and a pressure plate 9. The top of the protective cover 4 extends into the lower end of the waterproof cover 5. The waterproof cover 5 rotates with the input shaft 1 of the ring rolling mill.

[0022] Furthermore, the bottom of the protective cover 4 is connected to the drain pipe 10.

[0023] Furthermore, the drainage height of the drain pipe 10 is lower than the upper surface of the inner oil seal of the cover 11.

[0024] Furthermore, both the waterproof cover 5 and the protective cover 4 adopt a split-type composite structure.

Claims

1. A novel protective structure for the output end of the main reducer of a ring rolling mill, comprising a ring rolling device and a main reducer, wherein the input shaft (1) of the ring rolling device is connected to the output shaft (3) of the main reducer via a coupling (2), and a novel protective structure is installed around the coupling (2), characterized in that: The new protective structure includes a protective cover (4) and a waterproof cover (5); the protective cover (4) is installed on the cover (6) of the main reducer. The height of the protective cover (4) is higher than that of the coupling (2). The waterproof cover (5) is installed and fixed on the input shaft (1) of the ring rolling equipment by means of a set screw (7), a rubber sealing ring (8) and a pressure plate (9). The top of the protective cover (4) extends into the lower end of the waterproof cover (5). The waterproof cover (5) rotates with the input shaft (1) of the ring rolling machine.

2. The novel protective structure at the output end of the main reducer of the ring rolling mill according to claim 1, characterized in that: The bottom of the protective cover (2) is connected to the drain pipe (10).

3. The novel protective structure at the output end of the main reducer of the ring rolling mill according to claim 2, characterized in that: The height of the drain pipe (10) interface is lower than the upper surface of the oil seal inside the cover (11).

4. The novel protective structure at the output end of the main reducer of the ring rolling mill according to claim 1, characterized in that: Both the waterproof cover (5) and the protective cover (4) adopt a split-type combined structure.

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