Air inflation and oil replacement pipeline for fan speed reducer

Abstract

The utility model belongs to the technical field of fan speed reducer lubricating oil devices, and relates to a fan speed reducer inflation oil changing pipeline which comprises a speed reducer, a transmission shaft arranged at the top of the speed reducer, fan blades arranged at the top of the transmission shaft, a gear connected to the bottom of the transmission shaft, a power shaft connected to the gear in a meshed mode, and a motor connected to the power shaft. A connecting pipe is led out of the lubricating oil pipe, an oil level sight glass is arranged on the connecting pipe, a connecting screw thread is arranged at the tail end of the connecting pipe, the connecting pipe is connected with an oil filling pipe, the oil filling pipe is connected to an oil filling measuring cylinder, an oil filling opening is formed in the top of the oil filling measuring cylinder, and one side of the oil filling measuring cylinder is connected with an instrument air pipe. Pneumatic oil injection is achieved, a power air source is introduced, rapid injection of high-viscosity lubricating oil is achieved, and meanwhile oil is added through the measuring cylinder. Waste of oil products caused by excessive filling of lubricating oil on site is avoided, and accurate control over the pressure of the power gas source is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lubricating oil devices for fan reducers, and in particular relates to an air charging and oil changing pipeline for a fan reducer. Background Art

[0002] Steel mill air separation units are equipped with large rotating equipment, including air compressors, oxygen product compressors, and nitrogen product compressors. These compressors provide kinetic energy to the gaseous medium and also generate a certain amount of heat. The compressors are equipped with circulating water coolers, which utilize heat exchange between the circulating water and the high-temperature gaseous medium to improve compressor efficiency and ensure operational safety. The circulating water returns to the circulating water tank, where the heat carried by the water is dissipated into the atmosphere through the fan and filler.

[0003] The fan reducer used in the circulating water pool is equipped with dedicated pipelines for filling and draining lubricating oil. Valve operation allows for the discharge of old lubricating oil and the addition of new oil. This is fundamental to the daily maintenance of the fan reducer. However, lubricating oil is relatively viscous and has poor fluidity, making refilling time relatively long. The reducer for the cooling fan in the circulating water pool uses ISO VG220 lubricant, which relies on the natural flow of the lubricating oil, making refilling time lengthy.

[0004] Therefore, a fan reducer air charging and oil changing pipeline is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a fan reducer inflation and oil change pipeline, which has the fan reducer inflation and oil change function, and solves the problems of the prior art that the viscosity of the lubricating oil is relatively large, the fluidity is poor, and the refueling time is relatively long due to the natural flow of the lubricating oil.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: the utility model provides an air filling and oil changing pipeline for a fan reducer, including a reducer, a transmission shaft is provided on the top of the reducer, a fan blade is provided on the top of the transmission shaft, a gear is connected to the bottom of the transmission shaft, a power shaft is meshed and connected to the gear, the power shaft is connected to the motor, a lubricating oil pipe is provided at the bottom of the reducer, the end of the lubricating oil pipe is provided as an oil drain port, a connecting pipe is led out from the lubricating oil pipe, an oil level sight glass is provided on the connecting pipe, a connecting thread is provided at the end of the connecting pipe, the connecting pipe is connected to the refueling pipe, the refueling pipe is connected to the refueling measuring cylinder, an oil filling port is provided on the top of the refueling measuring cylinder, and one side of the refueling measuring cylinder is connected to the instrument air pipe.

[0007] Preferably, an exhaust hole is provided on one side of the reducer.

[0008] Preferably, an oil receiving barrel is provided at the oil drain port, and an oil drain ball valve is provided on the lubricating oil pipe.

[0009] Preferably, a dust cap is provided at the end of the connecting pipe.

[0010] Preferably, a refueling ball valve is provided on the refueling pipe.

[0011] Preferably, a sealing cover is provided on the oil filling port.

[0012] Preferably, a stop valve and a filter pressure reducing valve are provided on the instrument air pipe.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. This utility model realizes pneumatic oil filling, introduces a power air source, and realizes rapid filling of high-viscosity lubricating oil, while adding oil through a measuring cylinder. It avoids excessive filling of lubricating oil on site, which causes waste of oil products, and realizes precise control of the power air source pressure;

[0015] 2. The utility model has the function of aerating and changing oil for the fan reducer, which solves the problem in the prior art that the viscosity of the lubricating oil is relatively large, the fluidity is poor, and the refueling time is relatively long due to the natural flow of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 This is a structural diagram of the air filling and oil changing pipeline of a fan reducer;

[0018] In the above figure, 1. fan blade, 2. exhaust hole, 3. reducer, 4. transmission shaft, 5. gear, 6. lubricating oil pipe, 7. power shaft, 8. motor, 9. dust cap, 10. oil level sight glass, 11. oil drain ball valve, 12. oil drain port, 13. oil receiving barrel, 14. stop valve, 15. filter pressure reducing valve, 16. sealing cover, 17. oil filling port, 18. refueling measuring cylinder, 19. refueling ball valve, 20. refueling pipe, 21. connecting pipe, 22. instrument air pipe. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1, as Figure 1 As shown, a fan reducer air filling and oil exchange pipeline includes a reducer 3, which can reduce the speed of the motor 8 and increase the output torque. The reducer 3 is provided with a transmission shaft 4 on the top, which is responsible for transmitting power. The transmission shaft 4 is provided with a fan blade 1 on the top of the transmission shaft 4. The fan blade 1 generates airflow through rotation to promote the cooling effect.

[0022] The bottom of the transmission shaft 4 is connected to a gear 5, which transmits power through meshing to ensure normal operation of the equipment. A power shaft 7 is meshed with the gear 5, which is connected to a motor 8. Motor 8 provides driving force to ensure continuous and stable power output. The power shaft 7 connects the gear 5 and the motor 8, transmitting power and providing an efficient power transmission path.

[0023] A lubricating oil pipe 6 is provided at the bottom of the reducer 3. This pipe delivers lubricating oil to the reducer for lubrication, ensuring a timely supply of lubricating oil and reducing wear. A drain port 12 is provided at the end of the lubricating oil pipe 6, which serves as a discharge port for the lubricating oil. A connecting pipe 21 extends from the lubricating oil pipe 6, which is equipped with an oil level sight glass 10. This sight glass displays the lubricating oil level, facilitating oil level monitoring and preventing poor lubrication due to insufficient oil.

[0024] The connecting pipe 21 serves as a connection to facilitate maintenance. The end of the connecting pipe 21 is provided with a connecting thread, which facilitates the connection of the end of the connecting pipe 21 to other components. The connecting pipe 21 is connected to the refueling pipe 20, and the refueling pipe 20 is connected to the refueling measuring cylinder 18. The refueling measuring cylinder 18 accurately measures the amount of lubricating oil added to avoid overfilling and reduce oil waste. The refueling pipe 20 provides a convenient refueling channel to improve refueling efficiency. The top of the refueling measuring cylinder 18 is provided with an oil filling port 17. The oil filling port 17 is the injection port for lubricating oil, which is convenient for adding lubricating oil. One side of the refueling measuring cylinder 18 is connected to the instrument air pipe 22, and the instrument air pipe 22 is connected to the air source. Filling with gas ensures smooth pneumatic oiling and improves oiling efficiency.

[0025] Motor 8 generates power, which rotates fan blades 1 through the action of drive shaft 7, gear 5 inside reducer 3, and drive shaft 4. This increases air flow through the circulating water pool, enhances heat exchange between air and circulating water, and cools the circulating water. The circulating water pool fan requires regular lubrication changes according to the maintenance plan. Use ISO VG220 industrial gear oil, with a maximum lubrication volume of 60L. Maintenance consists of two steps: shutting down the machine to drain the oil and then refilling with fresh oil.

[0026] The oil draining step of the fan reducer is to drain the oil immediately after the shutdown. In this way, the residual temperature of the lubricating oil in the working state is relied on to maintain the good fluidity of the lubricating oil, which is especially important in winter.

[0027] The following is a detailed description of the design of the above key components:

[0028] The reducer 3 is provided with an exhaust hole 2 on one side. The exhaust hole 2 exhausts gas, preventing gas accumulation, effectively reducing the internal pressure of the reducer 3, and ensuring the smooth flow of lubricating oil. The exhaust hole 2 of the reducer 3 keeps the internal pressure of the reducer 3 equal to the ambient atmospheric pressure.

[0029] The oil drain port 12 is provided with an oil collecting bucket 13, which collects the discharged lubricating oil, thereby avoiding lubricating oil waste and facilitating environmentally friendly disposal. The lubricating oil pipe 6 is provided with an oil drain ball valve 11, which controls the opening and closing of the lubricating oil pipe 6 to discharge the lubricating oil, facilitate regular maintenance, and reduce maintenance costs.

[0030] The end of the connecting pipe 21 is provided with a dust cap 9 to prevent external debris from entering the connecting pipe 21 . The connecting pipe 21 is covered by the dust cap 9 when refueling is not required.

[0031] A refueling ball valve 19 is provided on the refueling pipe 20. The refueling ball valve 19 controls the opening and closing of the refueling pipe 20.

[0032] The oil filling port 17 is provided with a sealing cover 16. The sealing cover 16 can close the oil filling port 17 to prevent impurities from entering, thereby keeping the internal lubricating oil pure and extending the service life of the lubricating oil.

[0033] The instrument gas pipe 22 is provided with a stop valve 14 and a filter pressure reducing valve 15 . The stop valve 14 controls the opening and closing of the instrument gas pipe 22 . The filter pressure reducing valve 15 can filter the gas in the instrument gas pipe 22 and reduce the pressure to a suitable working pressure.

[0034] Example 2, as shown in Example 1, a fan reducer air filling and oil changing pipeline has the following implementation methods:

[0035] (1) Stainless steel is used to make the refueling measuring cylinder 18. The top of the refueling measuring cylinder 18 is designed with an oil filling port 17 and a well-sealed sealing cover 16, and the two are connected by a rotary thread; secondly, the top of the measuring cylinder is connected to an instrument air pipe 22, the diameter of the instrument air pipe 22 is 6mm, and the instrument air pipe 22 is designed with a stop valve 14 and a filter pressure reducing valve 15. The pressure reducing valve controls the inflation pressure of the instrument air to 50kPa, and the filtered and decompressed instrument air is connected to the top of the refueling measuring cylinder 18. In addition, a refueling pipe 20 with a diameter of 20mm is designed at the bottom of the refueling measuring cylinder 18, and a refueling ball valve 19 is designed. A threaded connection method is designed between the refueling pipe 20 and the connecting pipe 21 to maintain good airtightness at the connection. The placement height of the refueling measuring cylinder 18 is flush with the pipe connection thread of the connecting pipe 21, or slightly higher than the connecting pipe 21.

[0036] (2) Operation method of filling and oiling. First, open the sealing cap 16 of the oil filling port 17 at the top of the filling cylinder 18 and fill the qualified lubricating oil into the filling cylinder 18. Rotate the sealing cap 16 to seal it; second, check and confirm that the exhaust hole 2 of the reducer 3 is in the open state and the oil drain ball valve 11 is in the closed state; third, rotate the joint to connect the filling pipe 20 to the connecting pipe 211; fourth, open the stop valve 14 of the instrument air pipe 22 and introduce the power air source into the filling cylinder 18. Under the regulation of the filter pressure reducer, control the internal pressure of the filling cylinder 18 to 45-50kPa. The pressure data of the internal pressure of the filling cylinder 18 can be tracked by the pressure gauge on the filter pressure reducer; fifth, control the speed of the lubricating oil entering the reducer 3 by operating the filling ball valve 19 at the bottom of the filling cylinder 18. When the oil level in the oil level sight glass 10 drops, it means that the lubricating oil in the cylinder has been filled. At this time, close the filling ball valve 19 at the bottom of the filling cylinder 18. According to the refueling amount of the reducer 3, add an appropriate amount of lubricating oil to the refueling cylinder 18 and refill it; Sixth, after the lubricating oil is filled, close the exhaust hole 2 of the reducer 3 and tighten the connecting pipe 21 with the dust cap 9.

[0037] (3) The method of quantitative refueling with a measuring cylinder can effectively prevent oil overflow caused by excessive oil filling. During the refueling process of the reducer 3, you should also always pay attention to the exhaust hole 2 of the reducer 3 to prevent accidental oil overflow and waste.

[0038] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A fan reducer air filling and oil changing pipeline, characterized in that: It includes a reducer, a transmission shaft is provided on the top of the reducer, a fan blade is provided on the top of the transmission shaft, a gear is connected to the bottom of the transmission shaft, a power shaft is meshed and connected to the gear, the power shaft is connected to the motor, a lubricating oil pipe is provided at the bottom of the reducer, the end of the lubricating oil pipe is provided as an oil drain port, a connecting pipe is led out from the lubricating oil pipe, an oil level sight glass is provided on the connecting pipe, a connecting thread is provided at the end of the connecting pipe, the connecting pipe is connected to the refueling pipe, the refueling pipe is connected to the refueling measuring cylinder, an oil filling port is provided on the top of the refueling measuring cylinder, and one side of the refueling measuring cylinder is connected to the instrument air pipe.

2. The air-inflating and oil-changing pipeline of a fan reducer according to claim 1, characterized in that: An exhaust hole is provided on one side of the reducer.

3. The air-inflating and oil-changing pipeline for a fan reducer according to claim 1, characterized in that: An oil receiving bucket is provided at the oil drain port, and an oil drain ball valve is provided on the lubricating oil pipe.

4. The air-inflating and oil-changing pipeline for a fan reducer according to claim 1, characterized in that: The end of the connecting pipe is provided with a dust cap.

5. The air-inflating and oil-changing pipeline for a fan reducer according to claim 1, characterized in that: A refueling ball valve is provided on the refueling pipe.

6. The air-inflating and oil-changing pipeline for a fan reducer according to claim 1, characterized in that: A sealing cover is provided on the oil filling port.

7. The air-inflating and oil-changing pipeline for a fan reducer according to claim 1, characterized in that: The instrument air pipe is provided with a stop valve and a filter pressure reducing valve.

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