CN215806233U - Pneumatic control oil pressing system - Google Patents
Pneumatic control oil pressing system Download PDFInfo
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- CN215806233U CN215806233U CN202122306837.7U CN202122306837U CN215806233U CN 215806233 U CN215806233 U CN 215806233U CN 202122306837 U CN202122306837 U CN 202122306837U CN 215806233 U CN215806233 U CN 215806233U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 239000010687 lubricating oil Substances 0.000 claims abstract description 33
- 239000003921 oil Substances 0.000 claims abstract description 29
- 238000005086 pumping Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims 1
- 230000001050 lubricating effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 8
- 238000005461 lubrication Methods 0.000 description 6
- 206010015856 Extrasystoles Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model discloses a pneumatic control oil pressing system which comprises an air supply pipeline, a quick exhaust control unit, a slow exhaust control unit and a gear box exhaust control unit, wherein the air supply pipeline is connected with the quick exhaust control unit; the air outlet end of the quick exhaust pipeline of the quick exhaust control unit and the air outlet end of the slow exhaust pipeline of the slow exhaust control unit are respectively communicated with the exhaust pipeline through a communicating pipe, the exhaust pipeline is communicated with a pipeline of a lower gear box, and the exhaust pipeline of the gear box exhaust control unit is communicated with a pipeline of a lubricating oil box; lower gear box is connected with the lubricating-oil tank through first steel pipe and second steel pipe, through the cooperation work to lubricating-oil tank and lower gear box between quick exhaust control unit, slow exhaust control unit and the gear box exhaust control unit three, effectively solves the problem that lubricating oil can't the leading-in upper portion oil tank after gathering in lower gear box, avoids the upper portion oil tank to lack oil and leads to the emergence that lubricating system shut down.
Description
Technical Field
The utility model relates to the technical field of pneumatic control oil pressing, in particular to a pneumatic control oil pressing system.
Background
Along with the development of the ocean from offshore to deep sea, the tonnage of a ship is continuously increased, the overall performance of the ship is continuously improved, higher requirements are put forward on the performance of a propeller, and the propeller is required to have higher efficiency and save more energy.
For the propeller of small-size low power end product, the producer adopts the lubricated mode of submergence formula basically, and propeller cavity is inside to be full of lubricating oil, because the propeller cavity is less, even if be full of lubricating oil, it is little to product cost and weight influence.
However, for a large-sized propeller, if the immersed lubrication mode is still adopted, the cost and the product weight are greatly increased, the power loss of the propeller is also increased, and the performance requirement of the propeller is contradicted; comprehensively considering, pressure jet lubrication will become the main lubrication type of large-scale propeller lubricating system, but because the size of large-scale propeller, from and considering propeller mounting plane to propeller bottom apart from the size, lubricating oil must not directly draw through hydraulic power unit, simultaneously in propeller jet lubrication process, each lubricating point of propeller lower gear box all needs lubricating oil lubrication, then the lubricated fluid of propeller upper portion oil tank is along with the naval vessel operation, lubricating oil must get into propeller lower gear box gathering, when upper gear box fluid reduces to the unable start-up of lubricated pump station, then must lead to propeller lubricating system to shut down, and then influence the normal operating of naval vessel.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems of the background technology, and provides a pneumatic control oil pressing system which can smoothly and timely convey lubricating oil of a lower gearbox of a propeller to an upper gearbox of the propeller, so that the propeller is prevented from being stopped due to lack of lubricating oil for lubrication.
The purpose of the utility model can be realized by the following technical scheme:
a pneumatic control oil pressing system comprises an air supply pipeline, a quick exhaust control unit, a slow exhaust control unit and a gear box exhaust control unit;
the air outlet end of the quick exhaust pipeline of the quick exhaust control unit and the air outlet end of the slow exhaust pipeline of the slow exhaust control unit are respectively communicated with the exhaust pipeline through a communicating pipe, the exhaust pipeline is communicated with a pipeline of a lower gear box, and the exhaust pipeline of the gear box exhaust control unit is communicated with a pipeline of a lubricating oil box; the lower gear box is connected with the lubricating oil tank through a first steel pipe and a second steel pipe.
As a further scheme of the utility model: the air supply pipeline communicates with quick exhaust pipeline, slow exhaust pipeline and gear box exhaust pipeline respectively, and the inlet end of air supply pipeline is provided with the air supply, and one side is provided with first stop valve, pneumatic trigeminy piece and pressure switch of opening always on the air supply pipeline, and pneumatic trigeminy piece is located between first stop valve and the pressure switch of opening always.
As a further scheme of the utility model: the quick exhaust control unit is characterized in that a quick exhaust control valve, a quick exhaust throttle valve and a quick exhaust check valve are sequentially arranged on a quick exhaust pipeline of the quick exhaust control unit, the air outlet end of the quick exhaust control valve is connected with the air inlet end of the quick exhaust throttle valve, and the air outlet end of the quick exhaust throttle valve is connected with the air inlet end of the quick exhaust check valve.
As a further scheme of the utility model: the slow exhaust control unit is characterized in that a slow exhaust control valve, a slow exhaust throttle valve and a slow exhaust check valve are sequentially arranged on a slow exhaust pipeline of the slow exhaust control unit, an air outlet end of the slow exhaust control valve is connected with an air inlet end of the slow exhaust throttle valve, and an air outlet end of the slow exhaust throttle valve is connected with an air inlet end of the slow exhaust check valve.
As a further scheme of the utility model: the fast-exhaust throttle valve and the slow-exhaust throttle valve are adjustable throttle valves for adjusting the ventilation flow of the lower gearbox; be provided with first normally closed stop valve on the quick exhaust pipeline, first normally closed stop valve is connected with gas flowmeter.
As a further scheme of the utility model: and a gear box exhaust control valve and a gear box exhaust valve are sequentially arranged on a gear box exhaust pipeline of the gear box exhaust control unit.
As a further scheme of the utility model: the air outlet end of the gear box exhaust control valve is communicated with the air inlet end of the gear box exhaust valve.
As a further scheme of the utility model: the lower gear box is located below the lubricating oil tank, and the bottom end of the first steel pipe located at the lower gear box and the bottom end of the second steel pipe located at the lower gear box are not located at the same height.
As a further scheme of the utility model: the first steel pipe and the second steel pipe are arranged side by side, and the bottom end of the second steel pipe is higher than the bottom end of the first steel pipe.
As a further scheme of the utility model: the exhaust pipeline positioned in the lower gear box is sequentially provided with a pressure gauge, a pneumatic safety valve and a pressure sensor.
The utility model has the advantages of
According to the utility model, through the arranged quick exhaust control unit, after the quick exhaust control valve is electrified, the valve core position of the quick exhaust control valve is switched, and air of an air source is injected into the lower gear box through the quick exhaust throttle valve and the quick exhaust check valve; the arranged slow exhaust control unit is used for injecting air into the lower gear box through the slow exhaust throttle valve and the slow exhaust check valve after the slow exhaust control valve is electrified and the valve core position of the slow exhaust control valve is switched; and the gear box exhaust control unit is arranged to switch the lower gear box to be in a closed state, and the lubricating oil tank and the lower gear box are matched through the quick exhaust control unit, the slow exhaust control unit and the gear box exhaust control unit, so that the problem that the lubricating oil cannot be guided into the upper oil tank after being gathered in the lower gear box is effectively solved, and the lubricating system is prevented from being stopped due to the fact that the upper oil tank is lack of oil.
Drawings
The utility model will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a pneumatically controlled oil pumping system according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a pneumatic control oil-pressing system in the prior art.
In the figure: 1. an air inlet; 2. a first normally open stop valve; 3. a pneumatic triplet; 4. a pressure switch; 5. a quick exhaust control valve; 6. a slow exhaust control valve; 7. a gear box exhaust control valve; 8. a quick-drain throttle valve; 9. a quick-discharge check valve; 10. a slow drain throttle valve; 11. a slow discharge check valve; 12. a first normally closed stop valve; 13. a second normally open stop valve; 14. a third normally open stop valve; 15. a first pressure gauge; 16. a gearbox exhaust valve; 17. a second pressure gauge; 18. a pneumatic safety valve; 19. a pressure sensor; 20. a first steel pipe; 21. a second steel pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-2, the present invention relates to a pneumatically controlled oil pumping system, which comprises an air supply pipeline, a fast exhaust control unit, a slow exhaust control unit and a gear box exhaust control unit;
the air supply pipeline is respectively communicated with the fast exhaust pipeline, the slow exhaust pipeline and the gearbox exhaust pipeline, an air inlet 1 is formed in the air inlet end of the air supply pipeline, a first normally-open stop valve 2, a pneumatic triple piece 3 and a pressure switch 4 are arranged on one side of the air supply pipeline, and the pneumatic triple piece 3 is located between the first normally-open stop valve 2 and the pressure switch 4;
the quick exhaust control unit comprises a quick exhaust pipeline, a quick exhaust control valve 5, a quick exhaust throttle valve 8 and a quick exhaust check valve 9 are sequentially arranged on the quick exhaust pipeline, the air outlet end of the quick exhaust control valve 5 is connected with the air inlet end of the quick exhaust throttle valve 8, and the air outlet end of the quick exhaust throttle valve 8 is connected with the air inlet end of the quick exhaust check valve 9; the quick-discharge throttle valve 8 is an adjustable throttle valve and is used for adjusting the flow of the ventilation volume of the lower gear box; a first normally closed stop valve 12 is arranged on the quick exhaust pipeline and is connected with the gas flowmeter through the first normally closed stop valve 12, and the sizes of throttling openings of the quick exhaust throttle valve 8 and the slow exhaust throttle valve 10 can be set through the arranged first normally closed stop valve 12;
the quick exhaust control unit is specifically operated as follows: air source air enters the quick exhaust control valve 5 after passing through the first normally open stop valve 2 and the pneumatic triple piece 3, the air source air is directly discharged at an initial position, after the quick exhaust control valve 5 is electrified, the valve core position of the quick exhaust control valve 5 is switched, the air source air is injected into a lower gear box through a quick exhaust throttle valve 8 and a quick exhaust check valve 9, wherein the quick exhaust throttle valve 8 is used for controlling the flow of the air source, the speed of the air source entering the lower gear box is adjusted, the quick exhaust check valve 9 prevents the air source from flowing backwards, and the system pressure is ensured;
the slow exhaust control unit comprises a slow exhaust pipeline, a slow exhaust control valve 6, a slow exhaust throttle valve 10 and a slow exhaust check valve 11 are sequentially arranged on the slow exhaust pipeline, the air outlet end of the slow exhaust control valve 6 is connected with the air inlet end of the slow exhaust throttle valve 10, and the air outlet end of the slow exhaust throttle valve 10 is connected with the air inlet end of the slow exhaust check valve 11; the slow-discharge throttle valve 10 is an adjustable throttle valve and is used for adjusting the flow of the ventilation of the lower gear box; the exhaust pipeline is communicated with a pipeline of the lower gear box;
the slow exhaust control unit works specifically as follows: air source air enters the slow exhaust control valve 6 after passing through the first normally open stop valve 2 and the pneumatic triple piece 3, the air source air is directly discharged at an initial position, after the slow exhaust control valve 6 is powered on and the valve core position of the slow exhaust control valve 6 is switched, the air source air is injected into a lower gear box through the slow exhaust throttle valve 10 and the slow exhaust check valve 11, wherein the slow exhaust throttle valve 10 is used for controlling the flow of the air source and adjusting the speed of the air source entering the lower gear box, and the slow exhaust check valve 11 prevents the air source from flowing backwards to ensure the pressure of the system;
the gear box exhaust control unit comprises a gear box exhaust pipeline, a gear box exhaust control valve 7 and a gear box exhaust valve 16 are sequentially arranged on the gear box exhaust pipeline, and the air outlet end of the gear box exhaust control valve 7 is communicated with the air inlet end of the gear box exhaust valve 16; the exhaust pipeline of the gear box is communicated with the pipeline of the lubricating oil tank;
the specific work of the gear box exhaust control unit is as follows: after an air source passes through the first normally-open stop valve 2 and the pneumatic triple piece 3, when the fast exhaust control valve 5 or the slow exhaust control valve 6 acts, the gear box exhaust control valve 7 simultaneously acts, after the gear box exhaust control valve 7 is powered on, after the valve core position of the gear box exhaust control valve 7 is switched, the air source pushes the gear box exhaust valve 16 to act after passing through the gear box exhaust control valve 7, a connecting pipeline between the lower gear box and an oil tank is cut off, and the lower gear box is in a closed state;
the air outlet end of the rapid exhaust pipeline and the air outlet end of the slow exhaust pipeline are respectively communicated with the exhaust pipeline through communicating pipes, a second normally open stop valve 13, a third normally open stop valve 14 and a first pressure gauge 15 are sequentially arranged on the exhaust pipeline, and the exhaust pipeline is communicated with a pipeline of a lower gear box; the lower gear box is positioned below the lubricating oil tank and is connected with the lubricating oil tank through a first steel pipe 20 and a second steel pipe 21; the first steel pipe 20 and the second steel pipe 21 are arranged side by side, and the bottom end of the lower gearbox of the first steel pipe 20 and the bottom end of the lower gearbox of the second steel pipe 21 are not at the same height, namely the bottom end of the second steel pipe 21 is higher than the bottom end of the first steel pipe 20; through setting up first steel pipe 20 and second steel pipe 21 that the height differs, can guarantee that the lubricating oil that remains in gear box bottom down does not exert an influence to gear rotation.
A second pressure gauge 17, a pneumatic safety valve 18 and a pressure sensor 19 are sequentially arranged on an exhaust pipeline in the lower gear box; the pressure of the second pressure gauge 17 can be visually observed and used for monitoring the pressure in the lower gearbox, the pressure set by the pneumatic safety valve 18 is 1bar, the lower gearbox is unloaded when the gas pressure in the lower gearbox is larger than 1bar, the pressure sensor 19 is used for sensing the pressure in the lower gearbox, a pressure signal of the pressure sensor 19 is connected to the PLC, the pneumatic pressure is monitored constantly, and the pressure is displayed in the control room.
Example 2
A specific operation process of a pneumatic control oil pressing system comprises the following steps:
step 1: when the fast exhaust control valve 5 or the slow exhaust control valve 6 acts, the gear box exhaust control valve 7 acts simultaneously, after the gear box exhaust control valve 7 is powered on and the valve core position of the gear box exhaust control valve 7 is switched, an air source pushes the gear box exhaust valve 16 to act after passing through the gear box exhaust control valve 7, a connecting pipeline between the lower gear box and an oil tank is cut off, and the lower gear box is in a closed state;
air of an air source enters a quick exhaust control valve 5 after passing through a first normally open stop valve 2 and a pneumatic triple piece 3, the air of the air source is directly discharged at an initial position, after the quick exhaust control valve 5 is electrified, a second normally open stop valve 13 is closed, a first normally closed stop valve 12 is opened, a gas flowmeter is connected to the outlet of the first normally closed stop valve 12, the opening of a quick exhaust throttle valve 8 is set, after the flow of the gas flowmeter is stabilized at a flow value required during quick exhaust, the first normally closed stop valve 12 is closed, the second normally open stop valve 13 is opened, the air of the pressure air source continuously enters a lower gearbox of a propeller, the air pressure in the lower gearbox of the propeller continuously rises, after certain pressure is reached, the air pressure acts on the surface of lubricating oil of the lower gearbox of the propeller through the air pressure, and the lubricating oil is pushed to enter a lubricating oil tank through a first steel pipe 20 and a second steel pipe 21;
step 2: before the slow exhaust process, a slow exhaust flow value is set, the slow exhaust control valve 6 is powered, air of an air source enters the slow exhaust control valve 6 after passing through the first normally open stop valve 2 and the pneumatic triple piece 3, the air of the air source is directly discharged at an initial position, and after the slow exhaust control valve 6 is powered and the valve core position of the slow exhaust control valve 6 is switched, the air of the air source is injected into a lower gear box through the slow exhaust throttle valve 10 and the slow exhaust check valve 11;
and step 3: when the propeller is stopped, the exhaust valve 16 of the gearbox is de-energized, the valve core of the exhaust valve 16 of the gearbox returns to the initial position, and the lower gearbox is communicated with an external channel through the exhaust valve 16 of the gearbox, so that oil in the lubricating oil tank can smoothly return to the lower gearbox of the propeller, and the surfaces of parts such as gears of the lower gearbox of the propeller are protected.
The working principle of the utility model is as follows: the quick exhaust control process comprises the following steps: electrifying the quick exhaust control valve 5, closing the second normally open stop valve 13, opening the first normally closed stop valve 12, connecting a gas flowmeter to the outlet of the first normally closed stop valve 12, setting the opening of the quick exhaust throttle valve 8, stabilizing the flow of the gas flowmeter to a flow value required by quick exhaust, closing the first normally closed stop valve 12, opening the second normally open stop valve 13, enabling a pressure gas source to continuously enter the lower gearbox of the propeller, continuously increasing the air pressure in the lower gearbox of the propeller, and after reaching a certain pressure, acting on the surface of lubricating oil of the lower gearbox of the propeller through the air pressure to push the lubricating oil to enter the lubricating oil tank through the first steel pipe 20 and the second steel pipe 21;
the slow exhaust control process comprises the following steps: before the slow exhaust process, a slow exhaust flow value is set, the slow exhaust control valve 6 is electrified, a pressure air source continuously enters a lower gear box of the propeller, the slow exhaust flow value is basically kept equal to the leakage gas flow value of the lower gear box, namely, the lubricating oil plane in the lower gear box of the propeller is kept stable, and redundant lubricating oil enters a lubricating oil tank through the first steel pipe 20 and the second steel pipe 21;
the exhaust control process of the gear box comprises the following steps: when the propeller enters a rapid exhaust or slow exhaust process, the exhaust valve 16 of the gear box is powered on, the exhaust valve 16 of the gear box is pushed to switch the position of the valve core, so that the lower gear box is closed with an external channel, and the sealing property of the lower gear box is ensured; when the propeller is stopped, the exhaust valve 16 of the gearbox is de-energized, the valve core of the exhaust valve 16 of the gearbox returns to the initial position, and the lower gearbox is communicated with an external channel through the exhaust valve 16 of the gearbox, so that oil in the lubricating oil tank can smoothly return to the lower gearbox of the propeller, and the surfaces of parts such as gears of the lower gearbox of the propeller are protected.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the utility model. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (9)
1. A pneumatic control oil pressing system is characterized by comprising an air supply pipeline, a quick exhaust control unit, a slow exhaust control unit and a gear box exhaust control unit;
the air outlet end of the quick exhaust pipeline of the quick exhaust control unit and the air outlet end of the slow exhaust pipeline of the slow exhaust control unit are respectively communicated with the exhaust pipeline through a communicating pipe, the exhaust pipeline is communicated with a pipeline of a lower gear box, and the exhaust pipeline of the gear box exhaust control unit is communicated with a pipeline of a lubricating oil box; the lower gear box is connected with the lubricating oil tank through a first steel pipe (20) and a second steel pipe (21), and the bottom end of the lower gear box, located on the first steel pipe (20), is not located at the same height as the bottom end of the lower gear box, located on the second steel pipe (21).
2. The pneumatic control oil pressing system according to claim 1, wherein the air supply pipeline is respectively communicated with the fast exhaust pipeline, the slow exhaust pipeline and the gearbox exhaust pipeline, an air inlet (1) is arranged at an air inlet end of the air supply pipeline, a first normally-open stop valve (2), a pneumatic triple piece (3) and a pressure switch (4) are arranged on one side of the air supply pipeline, and the pneumatic triple piece (3) is located between the first normally-open stop valve (2) and the pressure switch (4).
3. The pneumatic control oil pressing system according to claim 1, wherein a quick exhaust control valve (5), a quick exhaust throttle valve (8) and a quick exhaust check valve (9) are sequentially arranged on a quick exhaust pipeline of the quick exhaust control unit, an air outlet end of the quick exhaust control valve (5) is connected with an air inlet end of the quick exhaust throttle valve (8), and an air outlet end of the quick exhaust throttle valve (8) is connected with an air inlet end of the quick exhaust check valve (9).
4. The pneumatic control oil pressing system according to claim 1, wherein a slow exhaust control valve (6), a slow exhaust throttle valve (10) and a slow exhaust check valve (11) are sequentially arranged on a slow exhaust pipeline of the slow exhaust control unit, an air outlet end of the slow exhaust control valve (6) is connected with an air inlet end of the slow exhaust throttle valve (10), and an air outlet end of the slow exhaust throttle valve (10) is connected with an air inlet end of the slow exhaust check valve (11).
5. A pneumatically controlled oil pumping system according to claim 3, wherein the fast exhaust throttle valve (8) and the slow exhaust throttle valve (10) are both adjustable valves for adjusting the amount of the lower gearbox ventilation flow; a first normally closed stop valve (12) is arranged on the quick exhaust pipeline, and the first normally closed stop valve (12) is connected with a gas flowmeter.
6. A pneumatically controlled oil pumping system according to claim 1, characterized in that a gearbox exhaust control valve (7) and a gearbox exhaust valve (16) are arranged in sequence on the gearbox exhaust line of the gearbox exhaust control unit.
7. A pneumatically controlled oil pumping system according to claim 6, characterised in that the outlet end of the gearbox exhaust control valve (7) communicates with the inlet end of the gearbox exhaust valve (16).
8. A pneumatically controlled oil pumping system according to claim 1, wherein the lower gearbox is located below the lubricant tank.
9. A pneumatically controlled oil pumping system according to claim 8, wherein the first steel tube (20) is arranged side by side with the second steel tube (21), the bottom end of the second steel tube (21) being higher than the bottom end of the first steel tube (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122306837.7U CN215806233U (en) | 2021-09-23 | 2021-09-23 | Pneumatic control oil pressing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122306837.7U CN215806233U (en) | 2021-09-23 | 2021-09-23 | Pneumatic control oil pressing system |
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| Publication Number | Publication Date |
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| CN215806233U true CN215806233U (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122306837.7U Active CN215806233U (en) | 2021-09-23 | 2021-09-23 | Pneumatic control oil pressing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738860A (en) * | 2021-09-23 | 2021-12-03 | 合肥倍豪海洋装备技术有限公司 | Pneumatic control oil pressing system |
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2021
- 2021-09-23 CN CN202122306837.7U patent/CN215806233U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738860A (en) * | 2021-09-23 | 2021-12-03 | 合肥倍豪海洋装备技术有限公司 | Pneumatic control oil pressing system |
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