Waterproof structure of bevel gear box

By introducing a gas filtration system and a clean compressed air backflushing effect into the bevel gearbox, the problem of water ingress into the seal is solved, the gas purity is improved, oil contamination and maintenance costs are reduced, and the service life of the equipment is extended.

CN223923766UActive Publication Date: 2026-02-17BENXI BEIYING IRON & STEEL GROUP
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Patent Information

Application Number
CN202520922982.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2026-02-17
Estimated Expiration
2035-05-12

AI Technical Summary

Technical Problem

Existing bevel gearboxes suffer from poor double-lip sealing, leading to severe water ingress, lubricant contamination, bearing corrosion, and high oil and maintenance costs.

Method used

A gas filtration system is adopted, which intercepts and filters foreign objects in the gas through plate filter media. Combined with the backflushing effect of clean compressed air, it solves the problem of water ingress in the seal, improves gas purity and reduces oil contamination.

Benefits of technology

This effectively reduces water ingress into the bevel gearbox, minimizes oil contamination, extends equipment lifespan, and lowers maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of gear boxes, in particular to a waterproof structure of a bevel gear box, which comprises a mounting frame and the bevel gear box, a tank body is mounted in the mounting frame, a pump body is mounted on the outer wall of the top of the mounting frame, a filter structure is mounted on the outer wall of one side of the tank body, and one end of the tank body is connected with an air pipe. The other end of the air pipe is connected with a waterproof structure; the water inflow prevention structure comprises an air source triple piece connected to one end of the air pipe, a flow dividing pipe connected to the other end of the air source triple piece, connecting openings formed in the top of the flow dividing pipe at equal intervals and third valves installed in the connecting openings; the filtering structure comprises a filtering block installed on the outer wall of one end of the tank body and an embedded groove formed in the outer wall of one side of the filtering block. Gas upwards penetrates through the gas inlet hole of the insertion block and then is in contact with the plate type filter material, the plate type filter material intercepts and filters the gas, the content of foreign matter in sucked gas is reduced, and the purity of the gas is improved.
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Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, and in particular to a water-proof structure for a bevel gearbox. Background Technology

[0002] Gearboxes have a wide range of applications, such as in wind turbine generators. They are a crucial mechanical component widely used in wind turbine generators. Their main function is to transmit the power generated by the wind turbine under wind force to the generator and enable it to achieve the corresponding rotational speed.

[0003] Currently, some steel mills use bevel gearboxes, which suffer from poor double-lip sealing, resulting in severe water ingress during daily operation. This leads to a series of problems such as lubricant contamination and failure, bearing corrosion, and high costs for oil, filters, and maintenance. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems and shortcomings by proposing a water-proof structure for a bevel gearbox: after the gas passes upward through the air inlet of the insert block, it comes into contact with the plate filter material, which intercepts and filters the gas, reducing the foreign matter content in the inhaled gas and improving the purity of the gas.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A water-proof structure for a bevel gearbox includes a mounting frame and a bevel gearbox. A tank is mounted in the mounting frame, and a pump body is mounted on the top outer wall of the mounting frame. A filter structure is mounted on one side outer wall of the tank, and an air pipe is connected to one end of the tank. The water-proof structure includes an air source triplet connected to one end of the air pipe, a diverter pipe connected to the other end of the air source triplet, connection ports evenly spaced at the top of the diverter pipe, and a valve three installed in the connection ports. The filter structure includes a filter block mounted on the outer wall of one end of the tank, an embedded groove formed on one side outer wall of the filter block, and a sealing plate mounted on one side outer wall of the filter block.

[0007] Preferably, the other end of each of the three valves is connected to a connecting pipe, and the other end of the connecting pipe is connected to the top of one side of the bevel gear box.

[0008] Preferably, a second valve is installed in the air pipe, and pressure sensors are installed inside both the tank and the bevel gear box.

[0009] Preferably, the sealing plate is welded with an insertion block at the center of the inner groove, and the outer wall of one side of the insertion block is provided with equally spaced insertion slots, in which equally spaced plate filter media are inserted.

[0010] Preferably, the input end of the pump body is connected to the top of the filter block, and the sealing plate, filter block and insertion block are all provided with air inlet holes, and a sealing strip is provided between the sealing plate and the filter block.

[0011] Preferably, the output end of the pump body is connected to a delivery pipe, and the other end of the delivery pipe is connected to the tank body, and a valve is installed in the delivery pipe.

[0012] Preferably, the pump body, valve one, valve two, and valve three are connected to a switch via wires, and the switch is connected to a power source via wires.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. After the gas passes through the air inlet of the insert block, it comes into contact with the plate filter media. The plate filter media intercepts and filters the gas, reducing the content of foreign matter in the inhaled gas and improving the purity of the gas.

[0015] 2. Gas is blown out from the poorly sealed area in the bevel gearbox, and clean compressed air is introduced, forming a backflush effect. This can effectively solve the problem of water ingress into the seal from the root, reduce oil contamination, increase filter element consumption, and reduce worker maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a water-proof structure for a bevel gearbox proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the tank structure of a water-proof structure for a bevel gearbox proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the unfolded cross-sectional structure of the filter block of the anti-water-entry structure for a bevel gearbox proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the diversion pipe structure of a water-proof structure for a bevel gearbox proposed in this utility model.

[0020] In the diagram: 1. Mounting bracket, 2. Tank body, 3. Pump body, 4. Delivery pipe, 5. Valve 1, 6. Filter structure, 7. Waterproof structure, 8. Valve 2, 9. Air source triplet, 10. Diverter pipe, 11. Connection port, 12. Valve 3, 13. Connection pipe, 14. Bevel gear box, 15. Filter block, 16. Embedded groove, 17. Sealing plate, 18. Insertion block, 19. Sealing strip, 20. Plate filter media, 21. Air inlet. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1:

[0023] Reference Figure 1-2 and Figure 4 A water-proof structure for a bevel gearbox includes a mounting frame 1 and a bevel gearbox 14. A tank 2 is installed in the mounting frame 1, and a pump body 3 is installed on the top outer wall of the mounting frame 1. A filter structure 6 is installed on one side outer wall of the tank 2, and an air pipe is connected to one end of the tank 2, while a water-proof structure 7 is connected to the other end of the air pipe.

[0024] The water-proof structure 7 includes an air source triplet 9 connected to one end of the air pipe, a diversion pipe 10 connected to the other end of the air source triplet 9, a connection port 11 equidistantly located at the top of the diversion pipe 10, and a valve 12 installed in the connection port 11. The air source triplet 9 includes three main components: an air pressure reducing valve, a filter, and an oil mist lubricator, which further process the compressed gas and improve the cleanliness of the gas.

[0025] The other end of each valve 12 is connected to a connecting pipe 13, and the other end of the connecting pipe 13 is connected to the top of one side of the bevel gear box 14, through which clean compressed air is introduced to form a backflush effect, which can effectively solve the problem of water ingress at the source, reduce oil contamination, increase filter element consumption, and reduce worker maintenance costs.

[0026] Valve 28 is installed in the air pipe, and pressure sensors are installed inside both the tank 2 and the bevel gear box 14. The pressure sensors monitor the internal pressure of the tank 2 and the bevel gear pump 14.

[0027] Example 2:

[0028] Reference Figure 1-3 The filter structure 6 includes a filter block 15 installed on the outer wall of one end of the tank 2, an embedded groove 16 opened on the outer wall of one side of the filter block 15, and a sealing plate 17 installed on the outer wall of one side of the filter block 15. The plate filter material 20 intercepts and filters the gas, and then the gas is transported to the tank 2 by the pump body 3, reducing the foreign matter content of the inhaled gas and improving the purity of the gas.

[0029] The sealing plate 17 is welded with an insertion block 18 at the center of the inner groove 16, and the outer wall of one side of the insertion block 18 is provided with equally spaced insertion slots. The equally spaced plate filter media 20 are inserted into the insertion slots. After the sealing plate 17 is removed from the filter block 15, the plate filter media 20 can be pulled out from one end of the insertion block 18 to facilitate replacement of the filter media and subsequent maintenance.

[0030] The input end of the pump body 3 is connected to the top of the filter block 15, and the sealing plate 17, the filter block 15 and the insertion block 18 are all provided with air inlet holes 21. A sealing strip 19 is provided between the sealing plate 17 and the filter block 15. The sealing plate 17 is installed on the outer wall of the filter block 15, and the sealing strip 19 seals the installation of the sealing plate 17 and the filter block 15 to prevent gas from entering from the joint.

[0031] The output end of the pump body 3 is connected to the delivery pipe 4, and the other end of the delivery pipe 4 is connected to the tank body 2. A valve 5 is installed in the delivery pipe 4.

[0032] Pump body 3, valve 1 5, valve 2 8 and valve 3 12 are connected to a switch via wires, and the switch is connected to a power source via wires.

[0033] Working principle: During use, one end of the connecting pipe 13 is connected to the bevel gear box 14. After the pump body 3 starts, it draws air from the filter block 15 and delivers it to the tank 2. The gas is compressed inside the tank 2. The pressure sensor monitors the internal pressure of the tank 2 and the bevel gear pump 14. During the pumping process, outside air enters one end of the embedded groove 16 through the air inlet 21 on the sealing plate 17. Then, the gas rises through the air inlet 21 of the insert block 18 and comes into contact with the plate filter material 20. The plate filter material 20 intercepts and filters the gas. The gas is then delivered to the tank 2 by the pump body 3, reducing the foreign matter in the inhaled gas. To improve gas purity and reduce contamination, valve 12 on connection port 11 is activated, allowing gas from tank 2 to enter the diverter pipe 10 through the gas source triplet 9, and then from the diverter pipe 10 into the connecting pipe 13. The gas is then blown out from the poorly sealed area in the bevel gear box 14, introducing clean compressed air and creating a backflush effect. This effectively addresses the issue of water ingress at the source, reduces oil contamination, increases filter element consumption, and lowers maintenance costs. The gas source triplet 9 consists of three main components: an air pressure reducing valve, a filter, and an oil mist lubricator. The pressure reducing valve stabilizes the gas source pressure, keeping it constant. The filter cleans the gas source, filtering out moisture from the compressed air to prevent it from entering the device. The oil mist lubricates moving parts of the machine, providing lubrication for components where lubrication is inconvenient, significantly extending the machine's lifespan and further processing the compressed gas to improve its cleanliness.

[0034] The exemplary embodiments of the present invention have been described in detail herein with reference to examples. However, those skilled in the art will understand that various modifications and alterations can be made to the specific embodiments described above without departing from the spirit of the present invention, and various combinations can be made to the various technical features and structures proposed in the present invention without exceeding the protection scope of the present invention, which is determined by the appended claims. The foregoing description of specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical applications, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A water-proof structure for a bevel gearbox, comprising a mounting bracket (1) and a bevel gearbox (14), characterized in that, The mounting frame (1) is equipped with a tank (2), and a pump body (3) is installed on the top outer wall of the mounting frame (1). A filter structure (6) is installed on one side outer wall of the tank (2), and an air pipe is connected to one end of the tank (2). A water-proof structure (7) is connected to the other end of the air pipe. The water-proof structure (7) includes an air source triplet (9) connected to one end of the air pipe, a diversion pipe (10) connected to the other end of the air source triplet (9), a connection port (11) evenly spaced at the top of the diversion pipe (10), and a valve triplet (12) installed in the connection port (11). The filter structure (6) includes a filter block (15) installed on the outer wall of one end of the tank (2), an inner groove (16) opened on the outer wall of one side of the filter block (15), and a sealing plate (17) installed on the outer wall of one side of the filter block (15).

2. The water-proof structure for a bevel gearbox according to claim 1, characterized in that, The other end of each of the valves (12) is connected to a connecting pipe (13), and the other end of the connecting pipe (13) is connected to the top of one side of the bevel gearbox (14).

3. The water-proof structure for a bevel gearbox according to claim 1, characterized in that, The air pipe is equipped with valve 2 (8), and pressure sensors are installed inside the tank (2) and the bevel gear box (14).

4. The water-proof structure for a bevel gearbox according to claim 1, characterized in that, The sealing plate (17) is welded with an insertion block (18) at the center of the inner groove (16), and the outer wall of one side of the insertion block (18) is provided with equally spaced insertion slots, and equally spaced plate filter media (20) are inserted into the insertion slots.

5. The water-proof structure for a bevel gearbox according to claim 1, characterized in that, The input end of the pump body (3) is connected to the top of the filter block (15), and the sealing plate (17), the filter block (15) and the insertion block (18) are all provided with air inlet holes (21), and a sealing strip (19) is provided between the sealing plate (17) and the filter block (15).

6. The water-proof structure for a bevel gearbox according to claim 1, characterized in that, The output end of the pump body (3) is connected to the delivery pipe (4), and the other end of the delivery pipe (4) is connected to the tank body (2). A valve (5) is installed in the delivery pipe (4).

7. The water-proof structure for a bevel gearbox according to claim 1, characterized in that, The pump body (3), valve one (5), valve two (8) and valve three (12) are connected to a switch via wires, and the switch is connected to a power source via wires.