Rotating vane steering engine lubricating system

Abstract

The utility model relates to a rotating vane steering engine lubricating system, and belongs to the technical field of steering engine lubrication, the rotating vane steering engine lubricating system comprises a high-level oil tank, the high-level oil tank is mounted on an upper cylinder cover of a steering engine, the high-level oil tank is connected with an upper lubricating pipe fitting, and one end, far away from the high-level oil tank, of the upper lubricating pipe fitting penetrates into the upper cylinder cover and extends to an upper lining; the high-level oil tank is connected with a lower lubricating pipe fitting, and the end, away from the high-level oil tank, of the lower lubricating pipe fitting penetrates into a steering engine stator and extends to a lower lining. And the oil level line elevation of the lubricating oil in the high-level oil tank can be higher than the top surface of the steering engine stator. The steering engine has the advantages that the upper bush, the lower bush and the thrust bearing are fully lubricated, and abrasion of the steering engine rotor, the steering engine stator, the upper bush, the lower bush and the thrust bearing is relieved.

Description

Technical Field

[0001] The present application relates to the technical field of steering gear lubrication, and in particular to a rotary vane steering gear lubrication system. Background Art

[0002] The rotary vane steering gear is a power device for ships to steer and control the course. The rotation of the rotary vane is mainly achieved through the hydraulic system installed inside the cylinder. The lubrication design in the existing steering gear structure is as follows: Figure 1 As shown, the oil pump draws oil from the working oil tank and injects it into the steering gear pressure oil chamber 01. The hydraulic oil drives the steering gear rotor 011 to rotate through the internal hydraulic system. Since the steering gear rotor 011 is subjected to unstable force during operation and is prone to swaying, a small amount of hydraulic oil in the steering gear pressure oil chamber 01 breaks through the main sealing ring 04 and penetrates into the upper bushing 03, the lower bushing 08 and the thrust bearing 07 for lubrication. In addition, the excess residual oil in the thrust bearing 07 and the lower bushing 08 flows through the steering gear flow channel 02 to the steering gear oil drain pipe 06 for discharge, and the excess residual oil in the upper bushing 03 is directly discharged through the steering gear oil drain pipe 06.

[0003] However, since the upper bushing 03 and the lower bushing 08 of the servo are relatively large in size, and the stress-bearing parts are squeezed to reduce the gap, the thrust bearing 07 and the end faces of the rotor 011 are also in close contact with each other, so the gap between the rotor 011 and the thrust bearing 07 is also small. Therefore, the amount of hydraulic oil penetrating into the upper bushing 03, the lower bushing 08 and the thrust bearing 07 is not large, and it is difficult to fully lubricate. In addition, after part of the hydraulic oil penetrates into the upper bushing 03, it will be directly discharged through the servo oil drain pipe 06. After part of the hydraulic oil penetrates into the thrust bearing 07, it will be directly discharged through the servo flow channel 02 and the servo oil drain pipe 06, resulting in insufficient lubrication of the upper bushing 03, the lower bushing 08 and the thrust bearing 07, thereby causing accelerated wear. Utility Model Content

[0004] In order to achieve adequate lubrication of the upper bushing, the lower bushing and the thrust bearing and reduce the wear of the steering gear rotor, the steering gear stator, the upper bushing, the lower bushing and the thrust bearing, the present application provides a rotary vane steering gear lubrication system.

[0005] The present application provides a rotary vane servo lubrication system that adopts the following technical solution:

[0006] A rotary vane steering gear lubrication system, comprising a high-position oil tank, the high-position oil tank being mounted on an upper cylinder cover of the steering gear, the high-position oil tank being connected to an upper lubricating pipe fitting, an end of the upper lubricating pipe fitting away from the high-position oil tank being inserted into the upper cylinder cover and extending to an upper bushing;

[0007] The high-position oil tank is connected to a lower lubricating pipe fitting, and one end of the lower lubricating pipe fitting away from the high-position oil tank penetrates into the steering gear stator and extends to the lower bushing;

[0008] The oil level of the lubricating oil in the high-position oil tank may be higher than the top surface of the steering gear stator.

[0009] By adopting the above technical solution, before the steering gear is operated, the lubricating oil is poured into the high-position oil tank so that the oil level line of the lubricating oil in the high-position oil tank is higher than the top of the upper bushing. The lubricating oil flows to the upper bushing through the upper lubricating pipe fitting and flows into the lower bushing through the lower lubricating pipe fitting, so that the upper bushing and the lower bushing are fully infiltrated.

[0010] Secondly, when the rotor is rotating, the hydraulic oil in the steering gear pressure oil chamber partially breaks through the main sealing ring and infiltrates the thrust bearing, upper bushing and lower bushing. The lubricating oil in the high-position oil tank provides oil pressure to prevent the oil in the steering gear pressure oil chamber from flowing to the thrust bearing, upper bushing and lower bushing and then being directly discharged, thereby further fully infiltrating the upper bushing, lower bushing and thrust bearing, thereby reducing the wear of the steering gear rotor, steering gear stator, upper bushing, lower bushing and thrust bearing.

[0011] Optionally, the high-position oil tank is provided with an oil drain port, the oil drain port is at least higher than the top of the upper bushing, and the working oil tank is connected to the oil drain port.

[0012] By adopting the above technical scheme, as the oil in the steering gear pressure oil chamber continuously flows to the upper bushing, the lower bushing and the thrust bearing, the oil pressure at the upper bushing, the lower bushing and the thrust bearing continuously increases, and the lubricating oil can flow back to the high-level oil tank. When there is too much lubricating oil in the high-level oil tank, it can be discharged into the working oil tank through the oil drain port, thereby reducing the situation in which the lubricating oil breaks through the secondary sealing ring due to excessive oil pressure in the upper bushing and the lower bushing, causing leakage of the steering gear.

[0013] Optionally, the upper lubrication pipe includes a first upper lubrication pipe and a second upper lubrication pipe, the first upper lubrication pipe is located in the upper cylinder head and one end extends into the upper bushing, and the other end extends out of the upper cylinder head, one end of the second upper lubrication pipe is connected to the high-position oil tank, and the other end is connected to the first upper lubrication pipe.

[0014] By adopting the above technical solution, the second upper lubrication pipe is preset in the upper cylinder cover during the production and processing of the servo. When the upper cylinder cover is connected to the high-position oil tank, it is only necessary to connect the first upper lubrication pipe and the second upper lubrication pipe, which is convenient for installation.

[0015] Optionally, the lower lubrication pipe includes a first lower lubrication pipe and a second lower lubrication pipe, the first lower lubrication pipe is located in the steering gear stator and one end extends into the lower bushing, and the other end extends out of the steering gear stator, one end of the second lower lubrication pipe is connected to the high-position oil tank, and the other end is connected to the first lower lubrication pipe.

[0016] By adopting the above technical solution, the first lower lubrication pipe is preset in the steering gear stator during the production and processing of the steering gear. When the steering gear stator is connected to the high-position oil tank, it is only necessary to connect the second lower lubrication pipe with the first lower lubrication pipe, which is convenient for installation.

[0017] Optionally, the second lower lubrication pipe includes a first branch pipe and a second branch pipe, one end of the first branch pipe is connected to the high-position oil tank, and the other end is connected to the second branch pipe, and the end of the second branch pipe away from the first branch pipe is connected to the first lower lubrication pipe.

[0018] Optionally, the first branch pipe is installed with an emergency ball valve.

[0019] By adopting the above technical scheme, since it is extremely difficult to replace the seal at the bottom of the steering gear, when the auxiliary seal ring at the bottom of the steering gear leaks, the hydraulic oil in the high-level oil tank flows to the lower bushing through the first branch pipe, the second branch pipe and the first lower lubrication pipe. The lubricating oil in the high-level oil tank is more likely to reach the leakage point of the auxiliary seal ring at the bottom of the steering gear, which is likely to cause a large leakage. At this time, closing the emergency ball valve can greatly reduce the leakage amount and facilitate temporary emergency work.

[0020] Optionally, the first branch pipe is connected to a three-way pipe joint, the second branch pipe is connected to the three-way pipe joint, the three-way pipe joint is also connected to a sewage pipe, and a sewage ball valve is provided on the sewage pipe.

[0021] By adopting the above technical solution, the sewage ball valve can be opened regularly to facilitate the discharge of heavily polluted waste oil through the sewage pipe.

[0022] Optionally, the high-level oil tank is provided with a liquid level gauge for observing the internal oil level, and the refueling port of the high-level oil tank is arranged at the top thereof.

[0023] By adopting the above technical solution, the liquid level gauge can conveniently observe the lubricating oil condition in the high-level oil tank at any time, ensuring that the lubricating oil level line of the steering gear is always higher than the upper bushing during the process, so that the upper bushing can be fully lubricated.

[0024] Optionally, the high-position oil tank is installed with a support, and the support is bolted to the upper cylinder head.

[0025] By adopting the above technical solution, it is convenient to install the high-position oil tank on the upper cylinder head.

[0026] Optionally, an oil leakage channel is provided in the servo rotor, and an annular groove is provided on the stepped surface of the servo rotor near the upper bushing, the annular groove is connected to the upper lubrication pipe fitting, one end of the oil leakage channel is connected to the annular groove, and the other end passes through the thrust bearing.

[0027] By adopting the above technical solution, on the one hand, the lubricating oil can flow to the thrust bearing through the upper oil inlet key and the oil drain channel, thereby fully infiltrating the thrust bearing;

[0028] On the other hand, the oil leakage channel plays an auxiliary role in diverting the oil. Under the action of gravity, the oil pressure at the bottom of the rotor will be higher than the oil pressure at the top of the rotor. The oil at the bottom of the rotor can be discharged to the top of the rotor through the oil leakage channel, thereby balancing the oil pressure.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The oil level of the lubricating oil in the high-position oil tank is higher than the top of the upper bushing. The lubricating oil flows to the upper bushing through the upper lubricating pipe fitting, and flows into the lower bushing through the lower lubricating pipe fitting, so that the upper bushing and the lower bushing are fully infiltrated;

[0031] 2. When the rotor is rotating, the hydraulic oil in the steering gear pressure oil chamber partially breaks through the main seal ring and infiltrates the thrust bearing, upper bushing and lower bushing. The lubricating oil in the high-position oil tank provides oil pressure to prevent the oil in the steering gear pressure oil chamber from flowing to the thrust bearing, upper bushing and lower bushing and then being directly discharged, further making the upper bushing, lower bushing and thrust bearing fully infiltrated, thereby reducing the wear of the steering gear rotor, steering gear stator, upper bushing, lower bushing and thrust bearing;

[0032] 3. As the oil in the steering gear pressure oil chamber continuously flows to the upper bushing, lower bushing and thrust bearing, the oil pressure at the upper bushing, lower bushing and thrust bearing continues to increase, and the lubricating oil can flow back to the high-level oil tank. When there is too much lubricating oil in the high-level oil tank, it can be discharged to the working oil tank through the oil drain port, thereby reducing the excessive oil pressure on the upper bushing and lower bushing, which causes the lubricating oil to break through the secondary sealing ring and cause leakage of the steering gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the rotary vane servo in this application.

[0034] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0035] Figure 3 It is a schematic diagram of the structure of the support used to illustrate the embodiment of the present application.

[0036] Explanation of reference numerals: 01, steering gear pressure oil chamber; 02, steering gear flow channel; 03, upper bushing; 04, main sealing ring; 05, auxiliary sealing ring; 06, steering gear oil drain pipe; 07, thrust bearing; 08, lower bushing; 09, upper cylinder cover; 010, stator; 011, rotor; 1, high-level oil tank; 11, oil filling pipe port; 12, liquid level gauge; 13, oil drain port; 2, support; 21, connecting rod; 22 , mounting plate; 3, upper lubrication pipe fitting; 31, first upper lubrication pipe; 32, second upper lubrication pipe; 33, annular groove; 34, diverter pipe; 35, oil drain channel; 4, lower lubrication pipe fitting; 41, first lower lubrication pipe; 42, second lower lubrication pipe; 421, first branch pipe; 422, second branch pipe; 423, drain pipe; 424, three-way pipe joint; 425, drain ball valve; 426, emergency ball valve. DETAILED DESCRIPTION

[0037] The following is combined with Figure 2-3 This application is described in further detail.

[0038] The embodiment of the present application discloses a rotary vane servo lubrication system.

[0039] like Figure 2 and Figure 3 A rotary vane steering gear lubrication system includes a high-level oil tank 1, which is a rectangular box body. A refueling pipe port 11 is arranged on the top of the high-level oil tank 1. Two supports 2 are connected to the side of the high-level oil tank 1 facing the steering gear. The supports 2 include a connecting rod 21 and a mounting plate 22. The connecting rod 21 is fixed to the high-level oil tank 1, and the mounting plate 22 is fixed to the connecting rod 21. The mounting plate 22 is bolted to the upper cylinder cover 09. A liquid level gauge 12 is installed on the side of the high-level oil tank 1 away from the connecting rod 21.

[0040] An upper lubricating pipe fitting 3 and a lower lubricating pipe fitting 4 are installed at one end of the high-position oil tank 1, and an oil drain port 13 is opened. The design height of the oil drain port 13 is higher than the top surface of the liquid level gauge 12, and the top surface of the liquid level gauge 12 is higher than the top surface of the upper bushing 03.

[0041] The upper lubricating pipe 3 includes a first upper lubricating pipe 31 and a second upper lubricating pipe 32. The first upper lubricating pipe 31 is located in the upper cylinder head 09. One end of the first upper lubricating pipe 31 extends out of the upper cylinder head 09 and passes through the upper bushing 03. The other end of the first upper lubricating pipe 31 passes through the outer side of the upper cylinder head 09 and is connected to the second upper lubricating pipe 32. The second upper lubricating pipe 32 is connected to the high-position oil tank 1. The height of the second upper lubricating pipe 32 is lower than the height of the oil drain port 13. An annular groove 33 is provided on the stepped surface of the steering gear rotor 011 near the upper bushing 03. The first upper lubricating pipe 31 is connected to a shunt pipe 34. The shunt pipe 34 is connected to the annular groove 33. An oil drain channel 35 is provided in the side wall of the rotor 011. The oil drain channel 35 is parallel to the axis of the steering gear rotor 011. One end of the oil drain channel 35 is connected to the annular groove 33. The other end of the oil drain channel 35 passes through the stepped surface where the steering gear rotor 011 fits the thrust bearing 07.

[0042] The lower lubricating pipe 4 includes a first lower lubricating pipe 41 and a second lower lubricating pipe 42. The first lower lubricating pipe 41 is located at the bottom of the steering gear stator 010. One end of the first lower lubricating pipe 41 extends out of the steering gear stator 010 and passes through the lower bushing 08. The other end of the first lower lubricating pipe 41 passes through the outer wall of the steering gear stator 010.

[0043] The second lower lubrication pipe 42 includes a first branch pipe 421, a second branch pipe 422 and a drain pipe 423. An emergency ball valve 426 is installed on the first branch pipe 421. One end of the first branch pipe 421 is connected to the high-level oil tank 1. The connection between the first branch pipe 421 and the high-level oil tank 1 is lower than the oil drain port 13. The other end of the first branch pipe 421 is connected to a three-way pipe joint 424. The three-way pipe joint 424 is connected to the second branch pipe 422 and the drain pipe 423. The other end of the second branch pipe 422 is connected to the first lower lubrication pipe 41. A drain ball valve 425 is installed on the drain pipe 423.

[0044] Before the steering gear is operated, the lubricating oil is poured into the high-position oil tank 1 so that the oil level of the lubricating oil in the high-position oil tank 1 is higher than the top of the upper bushing 03. The lubricating oil flows to the upper bushing 03 through the first upper lubricating pipe 31 and the second upper lubricating pipe 32, and flows to the thrust bearing 07 through the diverter pipe 34, the annular groove 33 and the oil drain channel 35, and flows into the lower bushing 08 through the first branch pipe 421, the second branch pipe 422 and the first lower lubricating pipe 41, so that the upper bushing 03, the lower bushing 08 and the thrust bearing 07 are fully infiltrated.

[0045] Secondly, during the rotation of the rotor 011, the hydraulic oil in the steering gear pressure oil chamber 01 partially breaks through the main seal ring 04 and infiltrates the thrust bearing 07, the upper bushing 03 and the lower bushing 08. The lubricating oil in the high-position oil tank 1 provides oil pressure to prevent the oil in the steering gear pressure oil chamber 01 from flowing to the thrust bearing 07, the upper bushing 03 and the lower bushing 08 and then being directly discharged, so as to further fully infiltrate the upper bushing 03, the lower bushing 08 and the thrust bearing 07, thereby reducing the wear of the steering gear rotor 011, the steering gear stator 010, the upper bushing 03, the lower bushing 08 and the thrust bearing 07.

[0046] Moreover, as the oil in the steering gear pressure oil chamber 01 continuously flows to the upper bushing 03, the lower bushing 08 and the thrust bearing 07, the oil pressure at the upper bushing 03, the lower bushing 08 and the thrust bearing 07 continuously increases, and the lubricating oil can flow back to the high-position oil tank 1. When there is too much lubricating oil in the high-position oil tank 1, it can be discharged to the working oil tank through the oil drain port 13, thereby reducing the situation where the lubricating oil breaks through the secondary sealing ring 05 due to excessive oil pressure in the upper bushing 03 and the lower bushing 08, causing leakage of the steering gear;

[0047] At the same time, the oil drain channel 35 also plays a role in assisting the oil flow. Under the action of gravity, the oil pressure at the bottom of the rotor 011 will be higher than the oil pressure at the top of the rotor 011. The oil at the bottom of the rotor 011 can be discharged to the top of the rotor 011 through the oil drain channel 35, thereby playing a role in balancing the oil pressure.

[0048] Moreover, since it is extremely difficult to replace the seal at the bottom of the steering gear, when the auxiliary seal ring 05 at the bottom of the steering gear leaks, the hydraulic oil in the high-level oil tank 1 flows to the lower bushing 08 through the first branch pipe 421, the second branch pipe 422 and the first lower lubrication pipe 41. The lubricating oil in the high-level oil tank 1 is more likely to reach the leakage point of the auxiliary seal ring 05 at the bottom of the steering gear, which is likely to cause a large leakage. At this time, closing the emergency ball valve 426 can greatly reduce the leakage amount, which is convenient for temporary emergency work.

[0049] The implementation principle of the embodiment of the present application is as follows: the oil level line of the lubricating oil in the high-position oil tank 1 is higher than the top of the upper bushing 03, the lubricating oil flows to the upper bushing 03 and the thrust bearing 07 through the upper lubricating pipe fitting 3 and the oil drain channel 35, and flows into the lower bushing 08 through the lower lubricating pipe fitting 4, so that the upper bushing 03, the thrust bearing 07 and the lower bushing 08 are fully wetted, thereby reducing the wear of the steering gear rotor 011, the steering gear stator 010, the upper bushing 03, the lower bushing 08 and the thrust bearing 07.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rotary vane steering gear lubrication system, characterized in that: It comprises a high-position oil tank (1), the high-position oil tank (1) is mounted on the upper cylinder cover (09) of the steering gear, the high-position oil tank (1) is connected to an upper lubricating pipe fitting (3), and one end of the upper lubricating pipe fitting (3) away from the high-position oil tank (1) penetrates into the upper cylinder cover (09) and extends to the upper bushing (03); The high-position oil tank (1) is connected to a lower lubricating pipe (4), and one end of the lower lubricating pipe (4) away from the high-position oil tank (1) penetrates into the steering gear stator (010) and extends to the lower bushing (08); The oil level of the lubricating oil in the high-position oil tank (1) can be higher than the top surface of the steering gear stator (010).

2. The rotary vane steering gear lubrication system according to claim 1, characterized in that: The high-position oil tank (1) is provided with an oil drain port (13), the oil drain port (13) is at least higher than the top of the upper bushing (03), and the working oil tank is connected to the oil drain port (13).

3. The rotary vane steering gear lubrication system according to claim 1, characterized in that: The upper lubrication pipe (3) comprises a first upper lubrication pipe (31) and a second upper lubrication pipe (32); the first upper lubrication pipe (31) is located in the upper cylinder head (09) and one end of the first upper lubrication pipe extends into the upper bushing (03), while the other end extends out of the upper cylinder head (09); one end of the second upper lubrication pipe (32) is connected to the high-position oil tank (1), and the other end is connected to the first upper lubrication pipe (31).

4. The rotary vane steering gear lubrication system according to claim 1, characterized in that: The lower lubrication pipe (4) comprises a first lower lubrication pipe (41) and a second lower lubrication pipe (42); the first lower lubrication pipe (41) is located in the steering gear stator (010) and one end of the first lower lubrication pipe extends into the lower bushing (08), while the other end extends out of the steering gear stator (010); one end of the second lower lubrication pipe (42) is connected to the high-position oil tank (1), and the other end is connected to the first lower lubrication pipe (41).

5. The rotary vane steering gear lubrication system according to claim 4, characterized in that: The second lower lubrication pipe (42) comprises a first branch pipe (421) and a second branch pipe (422); one end of the first branch pipe (421) is connected to the high-position oil tank (1), and the other end is connected to the second branch pipe (422); the end of the second branch pipe (422) away from the first branch pipe (421) is connected to the first lower lubrication pipe (41).

6. The rotary vane steering gear lubrication system according to claim 5, characterized in that: The first branch pipe (421) is installed with an emergency ball valve (426).

7. The rotary vane steering gear lubrication system according to claim 6, characterized in that: The first branch pipe (421) is connected to a three-way pipe joint (424), the second branch pipe (422) is connected to the three-way pipe joint (424), the three-way pipe joint (424) is also connected to a sewage pipe (423), and a sewage ball valve (425) is provided on the sewage pipe (423).

8. The rotary vane steering gear lubrication system according to claim 1, characterized in that: The high-level oil tank (1) is provided with a liquid level gauge (12) for observing the internal oil level, and the oil filling port of the high-level oil tank (1) is provided at the top thereof.

9. The rotary vane steering gear lubrication system according to claim 1, characterized in that: The high-position oil tank (1) is provided with a support (2), and the support (2) is bolted to the upper cylinder cover (09).

10. The rotary vane steering gear lubrication system according to claim 1, characterized in that: An oil leakage channel (35) is provided in the steering gear rotor (011); an annular groove (33) is provided on the stepped surface of the steering gear rotor (011) near the upper bushing (03); the annular groove (33) is connected to the upper lubricating pipe (3); one end of the oil leakage channel (35) is connected to the annular groove (33), and the other end passes through the thrust bearing (07).

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