Totally-closed oil injection device suitable for high-dust environment
Through the design of a fully enclosed oil filling device, the pollution problem of lubricant filling in high dust environments is solved, closed filling and precise control are achieved, and the cleanliness of lubricant and equipment lubrication efficiency are improved.
Patent Information
- Application Number
- CN202421906673.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-08
AI Technical Summary
In high dust environments, lubricating oil is easily contaminated when filling, the space position of the oil injection port is small, the speed and quantity are difficult to control, and the existing filling methods are likely to cause damage to the equipment.
A fully enclosed oil injection device suitable for high dust environments is designed, adopting a split-type barrel structure, equipped with a filter device and a nitrogen pressure injection system, ensuring that the filling process is sealed, connected to the equipment oil injection port through the oil outlet pipeline, and the filling speed and quantity are controlled by nitrogen pressure.
The closed filling of lubricant oil is achieved, which avoids dust pollution, improves the cleanliness of lubricant oil and equipment lubrication efficiency.
Smart Images
Figure CN223090399U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of lubricating oil filling, and particularly relates to a fully enclosed oil filling device suitable for high-dust environments. Background Art
[0002] In industrial production, lubricating oil needs to be regularly filled into parts that need lubrication, such as the bearing chambers and gearboxes of moving equipment. At present, when most enterprises' equipment fills lubricating oil, it is filled into the equipment lubrication points through an oil lifting kettle passing through a filter screen. During this process, the lubricating oil comes into contact with the air at the production site and is easily contaminated with dust and moisture, which has an adverse impact on the quality of the lubricating oil. Moreover, this method of filling lubricating oil allows the oil to flow into the equipment lubrication points by the gravity of the oil product itself. For some equipment, the space position of the oil filling port is very small, and it is very difficult to inject lubricating oil into the lubrication point through a conventional oil lifting kettle, which is very unfavorable for the development of equipment maintenance work. Summary of the Utility Model
[0003] The problems to be solved by the utility model are as follows: 1) The space position of the oil filling port for filling lubricating oil is very small; 2) The speed of filling lubricating oil can only rely on gravity, and it is difficult to control the filling speed and filling volume; 3) In the high-dust environment of this solution, during filling, the lubricating oil tank will also be contaminated by dust particles due to non-sealing, resulting in equipment damage. In order to solve the problems of easy contamination during lubricating oil filling, difficult control of the filling speed and filling volume of lubricating oil, and a very small space position of the oil filling port, a fully enclosed oil filling device suitable for high-dust environments is provided.
[0004] In order to achieve the above technical effects, the technical solution of the utility model is: a fully enclosed oil filling device suitable for high-dust environments, including a separable barrel body, which is divided into an upper barrel body (1) and a lower barrel body (2). A filtering device (3) is arranged at the connection of the upper and lower barrel bodies. An oil inlet (4), an air inlet (6), an air outlet (9) and a pressure relief device (10) are arranged at the upper end of the upper barrel body (1). An oil outlet (5) is arranged at the lower end of the lower barrel body, and is connected to the lower barrel body (2) through an oil outlet pipe (12). A replaceable oil filling port (7) is arranged at the end of the oil outlet pipe, which is adapted to the oil filling ports of different equipment that need to be filled with lubricating oil, and is connected by riveting to ensure the tightness of the oil filling process.
[0005] As a further technical solution, for the separable barrel body, the upper barrel body (1) and the lower barrel body (2) are connected by airtight buckles or bolts; a bracket (11) is installed below the barrel body, and universal wheels are installed below the bracket (11); the oil inlet (4) is connected to the storage oil tank and the barrel body through an oil inlet pipe; the air inlet (6) is connected to the gas tank and the barrel body through an air inlet pipe.
[0006] As a further technical solution, the filtering device (3) is a combination of a sintered plate or a hard orifice plate and a filter screen or a filter cloth. The aperture of the sintered plate or the hard orifice plate is preferably 100 mesh, and the filter screen or the filter cloth can be provided with multi-stage filtration of different mesh numbers. The mesh number of the filter screen or the filter cloth is preferably 20-100 mesh. Further, when the oil outlet speed drops significantly, the filtering device can be disassembled and cleaned, and the filter screen or the filter cloth can be replaced.
[0007] As a further technical solution, the materials of the air inlet pipe and the air outlet pipe are preferably transparent silica gel hoses; the materials of the oil inlet pipe and the oil outlet pipe are preferably stainless steel corrugated hoses.
[0008] As a further technical solution, the oil outlet pipe (12) is movably connected to the lower barrel body (2) through a needle valve, which is convenient for disassembly.
[0009] As a further technical solution, a through-view mirror (8) is provided on the barrel body of the upper barrel body (1), and a liquid level scale is provided on the view mirror. The amount of oil filled each time can be calculated by the change of the liquid level scale.
[0010] As a further technical solution, a needle valve is provided at the oil inlet (4), and the valve size is DN15-DN80, which is connected to an oil storage barrel.
[0011] As a further technical solution, the air inlet can be connected to a gas pipeline through a quick connector. The gas is dehydrated and deoiled compressed air or inert gas, and the inflation method can be intermittent or continuous. The inflation type can be adjusted according to the size requirement of the oil injection amount.
[0012] As a further technical solution, a pressure gauge P is provided at the upper end of the upper barrel body (1), and the pressure control range of the gas is 0-0.3 MPa gauge pressure.
[0013] As a further technical solution, the pressure relief device (10) is a safety valve or a rupture disc or a combination of both.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] 1) The device for hermetically filling lubricating oil of the present utility model solves the possibility of secondary pollution of the oil product;
[0016] 2) When injecting oil into the equipment lubrication point at the production site, the nitrogen pressure injection method is adopted, and there are almost no requirements for the spatial position of the oil injection port. Generally speaking, this device for hermetically filling lubricating oil indirectly improves the lubricating oil cleanliness and the equipment lubrication work efficiency. Brief Description of the Drawings
[0017] Figure 1 It is a fully enclosed oil injection device applicable to a high-dust environment;
[0018] Figure 2 It is a schematic diagram of the process of filling lubricating oil.
[0019] Description of reference numerals: 1. upper barrel; 2. lower barrel; 3. filter device; 4. oil inlet; 5. bottom valve; 6. air inlet; 7. oil filling port; 8. through-view mirror; 9. air outlet; 10. pressure relief device; 11. bracket; 12. oil outlet pipeline; P, pressure gauge; DETAILED DESCRIPTION
[0020] The following will be combined with the attached Figure 1 and attached Figure 2 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] A fully enclosed oil filling device suitable for a high dust environment comprises a separable barrel body, which is divided into an upper barrel body 1 and a lower barrel body 2. A filtering device 3 is arranged at the connection between the upper and lower barrel bodies. An oil inlet 4, an air inlet 6, an air outlet 9 and a pressure relief device 10 are arranged at the upper end of the upper barrel body 1. An oil outlet 5 is arranged at the lower end of the lower barrel body, which is connected to the lower barrel body 2 through an oil outlet pipe 12. A replaceable oil filling port 7 is arranged at the end of the oil outlet pipe, which is adapted to the oil filling ports of different equipment that need to be filled with lubricating oil, and is riveted to ensure that the oil filling process is closed.
[0022] Example
[0023] A 10L fully enclosed oil filling device suitable for high dust environment is used, including an upper barrel, a lower barrel and a filtering device. The upper barrel and the lower barrel are made of stainless steel, and the filtering device at the connection between the upper and lower barrels is a combination of a sintered plate and a filter.
[0024] The air inlet and outlet are equipped with DN25 valves connected to the oil injection device. A 3 kg safety valve and a 2.5 kg explosion-proof disk are also provided on the top of the upper barrel.
[0025] Taking the process of filling lubricating oil into a two-liter reducer lubricating oil tank in the workshop as an example, the oil filling device is moved by the universal wheel of the bracket, the air outlet is opened, the air is exhausted, and about 9 liters of lubricating oil is injected through the oil outlet pipe.
[0026] Then close the air outlet valve, close the oil inlet, tightly rivet the oil outlet hose of the oil filling device and the oil filling port of the reducer lubricating oil tank, and then open the bottom valve of the lower barrel.
[0027] Meanwhile, open the intake valve and slowly add nitrogen into the oil injection device to slowly increase the pressure inside to 0.05 MPa.
[0028] At this time, the bottom pipeline slowly injects oil into the reducer lubricating oil tank, and the injection speed increases from slow to fast. Observe the liquid level and pressure of the lubricating oil in the oil injection device, and close the intake valve when it is about to reach 2 liters, or adjust the valve at the oil outlet to a smaller opening.
[0029] After the final filling is completed, completely close the valve of the lower barrel body, and then open the outlet valve to return the pressure in the oil injection device to zero pressure.
[0030] At this time, mark the oil level L2 in the oil injection device, and subtract it from the initial oil level L1 to obtain the oil injection volume this time.
[0031] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present utility model. The above are only specific embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A fully enclosed oil injection device applicable to high-dust environments, characterized in that: It includes a separable barrel body, which is divided into an upper barrel body (1) and a lower barrel body (2). A filtering device (3) is arranged at the connection of the upper and lower barrel bodies. At the upper end of the upper barrel body (1), there are an oil inlet (4), an air inlet (6), an air outlet (9) and a pressure relief device (10). At the lower end of the lower barrel body, there is an oil outlet (5), which is connected to the lower barrel body (2) through an oil outlet pipe (12). At the end of the oil outlet pipe (12), there is a replaceable oil filling port (7), which is adapted to the oil filling ports of different equipment that need to be filled with lubricating oil and is connected by riveting to ensure the tightness of the oil filling process.
2. The fully enclosed oil injection device applicable to a high-dust environment according to claim 1, wherein: For the separable barrel body, the upper barrel body (1) and the lower barrel body (2) are connected by airtight buckles or bolts; a bracket (11) is installed below the barrel body, and a universal wheel is installed below the bracket (11); the oil inlet (4) is connected to an oil storage tank and the barrel body through an oil inlet pipe; the air inlet (6) is connected to an air tank and the barrel body through an air inlet pipe.
3. The fully enclosed oil injection device applicable to a high-dust environment according to claim 1, wherein: The filtering device (3) is a combination of a sintered plate or a hard hole plate and a filter screen or a filter cloth. The aperture of the sintered plate or the hard hole plate is preferably 100 meshes, and the filter screen or the filter cloth can be set with multi-stage filtration of different meshes. The mesh number of the filter screen or the filter cloth is preferably 20 - 100 meshes.
4. The fully enclosed oil injection device applicable to a high-dust environment according to claim 3, characterized in that: The materials of the air inlet pipe and the air outlet pipe are preferably transparent silicone hoses; the materials of the oil inlet pipe and the oil outlet pipe are preferably stainless steel corrugated hoses.
5. The fully enclosed oil injection device applicable to a high-dust environment according to claim 3 or 4, characterized in that: The oil outlet pipe (12) is movably connected to the lower barrel body (2) through a needle valve, which is convenient for disassembly.
6. The fully enclosed oil injection device applicable to high-dust environment according to claim 1, wherein: A through-view mirror (8) is arranged on the barrel body of the upper barrel body (1), and a liquid level scale is arranged on the view mirror. The amount of oil filled each time can be calculated through the change of the liquid level scale.
7. The fully enclosed oil injection device applicable to a high-dust environment according to claim 1 or 2, wherein: A needle valve is arranged at the oil inlet (4), and the valve size is DN15 - DN80 and is connected to an oil storage barrel.
8. The fully enclosed oil injection device applicable to a high-dust environment according to claim 1, wherein: The air inlet can be connected to a gas pipe through a quick connector. The gas is dehydrated and deoiled compressed air or inert gas. The inflation method can be intermittent or continuous, and the inflation type can be adjusted according to the size requirement of the oil filling amount.
9. The fully enclosed oil injection device applicable to a high-dust environment according to claim 6, wherein: A pressure gauge P is arranged at the upper end of the upper barrel body (1), and the pressure control range of the gas is 0 - 0.3 MPa gauge pressure.
10. The fully enclosed oil injection device applicable to a high-dust environment according to claim 9, wherein: The pressure relief device (10) is a safety valve or a rupture disc or a combination of both.