Lubricating oil way for motor-driven hydraulic control turning gear

Abstract

The utility model discloses a lubricating oil way for a motor-driven hydraulic control turning gear. Belongs to the field of hydraulic jiggers. The defects that an existing motor-driven hydraulic control turning gear is complex in oil way structure and large in oil consumption, and the lubricating oil flow cannot be adjusted along with the change of the rotating speed of a transmission piece are overcome. Comprising a hydraulic motor, a turning gear box body, a hydraulic motor oil inlet pipe and a hydraulic motor oil return pipe, a turning lubricating module is installed at the top of the turning gear box body, a lubricating module upper oil inlet is formed in the top of the turning lubricating module, and the lubricating module upper oil inlet is connected with the end of the hydraulic motor oil return pipe; return oil of the hydraulic motor is effectively utilized to lubricate all transmission parts in the hydraulic control turning gear, a turning lubricating oil way does not need to be provided with an independent electromagnetic valve and does not need to be connected with a unit lubricating oil way, and the flow of the lubricating oil can be automatically adjusted along with changes of the rotating speed of the transmission parts. The lubricating oil way is mainly used for the hydraulic control turning gear.

Description

Technical Field

[0001] The utility model belongs to the field of hydraulically controlled turning devices, in particular to a lubricating oil circuit for a motor-driven hydraulically controlled turning device. Background Art

[0002] A hydraulically controlled turning gear primarily uses hydraulic control to achieve turning. It operates by utilizing a hydraulic system to provide power. The hydraulic system generally includes components such as a hydraulic pump, a hydraulic motor, and a control valve. The hydraulic pump outputs pressurized oil, which is then transferred to the hydraulic motor via a control valve. This drives the motor, which in turn rotates the connected shaft system, thereby achieving turning. In practical applications, such as large rotating machinery like ship main engines, a hydraulic turning gear allows critical rotating components, such as the crankshaft, to rotate slowly and smoothly during startup and shutdown, ensuring proper lubrication and preheating of the equipment, which is crucial for equipment maintenance and normal operation.

[0003] Currently, to save installation space, hydraulically controlled turning devices generally use hydraulic motors as the main power source. The currently known oil circuit design for this type of turning device is as follows: the unit's top shaft oil is used to provide high-pressure oil to the hydraulic motor, serving as the hydraulic motor's power source. The hydraulic motor's oil inlet pipe is connected to the unit's top shaft oil circuit. When the turning device is started, the unit's top shaft oil drives the hydraulic motor. The hydraulic motor's oil return pipe is connected to the turning gear housing, and the motor's return oil is directly returned to the unit's oil pan through the turning gear housing. This results in inefficient use of the motor's return oil. Instead, the unit's lubricating oil is used to lubricate the turning device's internal transmission components, and the lubricating oil circuit is equipped with a separate solenoid valve to control its on / off function. This design not only complicates the turning device's internal oil circuit structure but also significantly increases the required oil flow rate during operation. Utility Model Content

[0004] In order to solve the problem that the existing system utilizes the lubricating oil of the unit to provide lubricating oil for the internal transmission components of the turning gear device, and the lubricating oil circuit is equipped with a separate solenoid valve to control the on-off of the oil circuit, which greatly increases the lubricating oil flow required when the turning gear device is working, the utility model provides a lubricating oil circuit for a motor-driven hydraulic turning gear device. The lubricating oil circuit can effectively utilize the return oil of the hydraulic motor to lubricate the various transmission components inside the hydraulic turning gear device.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] 18. The oil pump according to claim 17, wherein the oil pumping station is connected to the oil pumping station by the hydraulic motor to get out of the oil drain plug, and the oil drain plug is connected to the oil pumping station by the hydraulic motor.

[0007] Furthermore, the turning gear lubrication module is provided with a lubrication module bearing oil outlet A, a lubrication module bearing oil outlet B and a gear oil outlet in the longitudinal direction;

[0008] The lubricating module bearing oil outlet A, the lubricating module bearing oil outlet B and the gear oil outlet are on the same straight line, and the gear oil outlet is arranged between the lubricating module bearing oil outlet A and the lubricating module bearing oil outlet B.

[0009] Furthermore, the hydraulic motor return oil in the lubrication module bearing oil outlet A and the lubrication module bearing oil outlet B respectively lubricates the internal bearings A and B of the turning gear device on both sides of the turning gear box.

[0010] Furthermore, the lower parts of the lubrication module bearing oil outlet A and the lubrication module bearing oil outlet B are fixedly connected to the guide oil pipe through a locking connector to guide the return oil of the hydraulic motor at the lubrication module bearing oil outlet A and the lubrication module bearing oil outlet B.

[0011] Furthermore, the guide oil pipe is an L-shaped pipe structure, and the outlet pipes of the two guide oil pipes correspond to the internal bearing A and the internal bearing B of the turning gear device inside the turning gear box respectively.

[0012] Furthermore, the gear oil outlet is arranged just above the winch device housing, and the hydraulic motor return oil in the gear oil outlet lubricates the internal gear set of the winch below the square.

[0013] Furthermore, the hydraulic motor return oil pipe is the turning gear lubricating oil main pipe, and the inlet end of the hydraulic motor return oil pipe is connected to the hydraulic motor through a locking piece, and the other end of the hydraulic motor return oil pipe bypasses the hydraulic motor and is fixedly connected to the turning gear lubrication module through a locking piece, and the return oil in the hydraulic motor is directly sent into the turning gear lubrication module through the hydraulic motor return oil pipe.

[0014] Furthermore, the oil inlet pipe is connected to the oil circuit of the top shaft of the unit, and the top shaft oil of the unit is sent into the hydraulic motor through the oil inlet pipe of the hydraulic motor to drive the hydraulic motor to operate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The lubricating oil circuit proposed in this utility model only requires connection to the top shaft oil circuit for the motor-driven hydraulic turning device, eliminating the need for connecting to the lubricating oil circuit. Oil return from the hydraulic motor ensures lubrication of the turning device's internal transmission components. Furthermore, the lubricating oil circuit automatically opens, increases, and stops as the turning device starts, increases speed, and stops.

[0017] In order to overcome the shortcomings of the existing motor-driven hydraulic turning gear device, such as complex oil circuit structure, high oil consumption, and inability to adjust the lubricating oil flow rate as the speed of the transmission parts changes, the utility model provides a lubricating oil circuit. The lubricating oil circuit can not only provide lubricating oil to the various transmission parts inside the hydraulic turning gear device, but also simplify the internal oil circuit structure of the turning gear and reduce the turning gear flow consumption. The optimized turning gear lubricating oil circuit does not need to be equipped with a separate solenoid valve or connected to the unit lubricating oil circuit, and can automatically adjust the lubricating oil flow rate as the speed of the transmission parts changes.

[0018] The utility model uses the hydraulic motor return oil pipe as the main pipe for the turning gear lubricating oil circuit. One end of the turning gear lubricating oil circuit main pipe is connected to the motor return oil port, and the other end is directly connected to the oil inlet above the turning gear lubrication module. When the turning gear is started, the unit's jacking oil enters the hydraulic motor to drive the motor. At the same time, the motor return oil enters the turning gear lubrication module through the hydraulic motor return oil pipe, and is then supplied to the turning gear's internal bearings and internal gears for lubrication. As the speed of the hydraulic motor and transmission components increases, the amount of hydraulic motor return oil increases, and the amount of transmission component lubricating oil increases accordingly, which conforms to the characteristic that the higher the speed of the transmission device, the greater the amount of lubricating oil required. When the turning gear stops, the hydraulic jacking oil no longer enters the hydraulic motor. The hydraulic motor has no return oil, which means that the turning gear transmission device has no lubricating oil, realizing the function of automatically stopping the lubricating oil when the turning gear stops. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are a part of this application and are used to provide a further understanding of the present invention.

[0020] Figure 1 This is the main view of the traditional turning device oil circuit layout;

[0021] Figure 2 This is a partial cross-sectional view from the right side of the traditional turning device oil circuit layout;

[0022] Figure 3 This is a front view of the lubricating oil circuit layout of an embodiment of the utility model;

[0023] Figure 4 This is a partial cross-sectional view of the right side of the lubricating oil circuit arrangement according to an embodiment of the utility model;

[0024] Description of reference numerals:

[0025] In the figure: 10, hydraulic motor, 11, hydraulic motor oil inlet pipe, 12, hydraulic motor oil return pipe, 20, turning device housing, 30, lubricating oil inlet pipe, 40, solenoid valve, 50, turning lubrication module, 60, bearing A inside the turning device, 70, bearing B inside the turning device, 80, gear set inside the turning device, 51, oil inlet on the side of the lubrication module, 52, oil inlet on the top of the lubrication module, 53, bearing oil outlet A of the lubrication module, 54, bearing oil outlet B of the lubrication module, 55, gear oil outlet. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0027] Specific implementation method 1: Combination Figure 1 — Figure 2 The present embodiment is described. The present embodiment is a lubricating oil circuit for a motor-driven hydraulic turning device, comprising a motor-driven hydraulic turning device, wherein the motor-driven hydraulic turning device comprises a hydraulic motor 10, a turning device housing 20, a hydraulic motor oil inlet pipe 11 and a hydraulic motor oil return pipe 12. The hydraulic motor 10 is mounted on the side of the turning device housing 20. The oil inlet of the hydraulic motor 10 is connected to the hydraulic motor oil inlet pipe 11, and the oil outlet of the hydraulic motor 10 is connected to the hydraulic motor oil return pipe 12. A turning lubrication module 50 is installed on the top of the box body 20. An oil inlet 51 above the lubrication module is longitudinally opened on the top of the turning lubrication module 50, and the oil inlet 51 above the lubrication module is connected to the end of the hydraulic motor return oil pipe 12. The other end of the hydraulic motor return oil pipe 12 is connected to the oil outlet of the hydraulic motor 10. When the hydraulic motor 10 rotates, the return oil in the hydraulic motor 10 is sent to the oil inlet 51 above the lubrication module of the turning lubrication module 50 through the hydraulic motor return oil pipe 12 and then enters the turning device box body 20.

[0028] Specific implementation method 2: Combination Figure 1 — Figure 2 This embodiment describes a lubricating oil circuit for a motor-driven hydraulic turning device. The turning device lubrication module 50 is longitudinally provided with a lubrication module bearing oil outlet A53, a lubrication module bearing oil outlet B54, and a gear oil outlet 55.

[0029] The lubrication module bearing oil outlet A53, the lubrication module bearing oil outlet B54 and the gear oil outlet 55 are on the same straight line, and the gear oil outlet 55 is arranged between the lubrication module bearing oil outlet A53 and the lubrication module bearing oil outlet B54.

[0030] The return oil in the hydraulic motor 10 enters the winch lubrication module 50 through the hydraulic motor return oil pipe 12, and passes through the lubrication module bearing oil outlet A53, the lubrication module bearing oil outlet B54, and the gear oil outlet 55 in the winch lubrication module 50 to pass the return oil in the hydraulic motor 10 through the corresponding outlets of the three pipeline diversion channels to complete the lubrication of the components in the winch device box.

[0031] Specific implementation method three: Combination Figure 1 — Figure 2 The present embodiment is described as follows. This embodiment is a lubricating oil circuit for a motor-driven hydraulically controlled turning device. The hydraulic motor return oil in the lubrication module bearing oil outlet A53 and the lubrication module bearing oil outlet B54 lubricates the turning device internal bearings A60 and B70 on both sides of the turning device housing 20, respectively.

[0032] The use of this lubricating oil circuit can not only provide lubricating oil for the various transmission components inside the hydraulically controlled turning gear device, but also simplify the internal oil circuit structure of the turning gear and reduce the turning gear flow consumption. The optimized turning gear lubricating oil circuit does not need to be equipped with a separate solenoid valve, does not need to be connected to the unit lubricating oil circuit, and can automatically adjust the lubricating oil flow as the speed of the transmission parts changes.

[0033] Specific implementation method four: Combination Figure 1 — Figure 2 To illustrate this embodiment, a lubricating oil circuit for a motor-driven hydraulic turning device is provided in this embodiment, wherein the lower portions of the lubricating module bearing oil outlet A53 and the lubricating module bearing oil outlet B54 are fixedly connected to the guide oil pipe via locking connectors, thereby guiding the return oil of the hydraulic motor at the lubricating module bearing oil outlet A53 and the lubricating module bearing oil outlet B54.

[0034] The guide oil pipe is an L-shaped pipe structure, and the outlet pipes of the two guide oil pipes correspond to the internal bearing A60 and the internal bearing B70 of the barring device inside the barring device housing 20 respectively.

[0035] By arranging a guide oil pipe above the turning gear housing, the return oil in the lubrication module bearing oil outlet A and the lubrication module bearing oil outlet B can be directly sprayed into the turning gear internal bearing A and the turning gear internal bearing B to complete lubrication.

[0036] Specific implementation method five: Combination Figure 1 — Figure 2 To illustrate this embodiment, a lubricating oil circuit for a motor-driven hydraulically controlled turning gear device is provided in this embodiment, wherein the gear oil outlet 55 is provided directly above the turning gear device housing 20, and the hydraulic motor return oil in the gear oil outlet 55 lubricates the internal gear set 80 of the turning gear directly below.

[0037] Gear oil outlet 55 is located within the turning gear lubrication module 50, and return oil from the hydraulic motor 10 is delivered directly through gear oil outlet 55. The returned oil then uses gravity to directly lubricate the internal turning gear set 80 within the turning gear housing 20. As the speed of the hydraulic motor and transmission components increases, the amount of oil returned from the hydraulic motor increases, and the amount of lubricating oil in the transmission components also increases. This is consistent with the characteristic that higher transmission speeds require a greater amount of oil.

[0038] Specific implementation method six: combination Figure 1 — Figure 2 The present embodiment is described. The present embodiment is a lubricating oil circuit for a motor-driven hydraulically controlled turning device. The hydraulic motor return oil pipe 12 is the turning lubricating oil main pipe, and the inlet end of the hydraulic motor return oil pipe 12 is connected to the hydraulic motor 10 through a locking piece. The other end of the hydraulic motor return oil pipe 12 bypasses the hydraulic motor 10 and is fixedly connected to the turning lubrication module 50 through a locking piece, and the return oil in the hydraulic motor 10 is directly sent to the turning lubrication module 50 through the hydraulic motor return oil pipe 12.

[0039] The locking part is a quick water pipe connector, which connects the hydraulic motor 10 and the turning lubrication module 50 through the locking part hydraulic motor return oil pipe 12. The optimized turning lubrication oil circuit does not need to be equipped with a separate solenoid valve or connected to the unit lubrication oil circuit, and can automatically adjust the lubricating oil flow as the speed of the transmission parts changes.

[0040] Specific implementation method seven: combination Figure 1 — Figure 4 The present embodiment is described as follows. This embodiment is a lubricating oil circuit for a motor-driven hydraulically controlled turning device. The hydraulic motor oil inlet pipe 11 is connected to the unit top shaft oil circuit, and the unit top shaft oil is sent into the hydraulic motor 10 through the hydraulic motor oil inlet pipe 11 to drive the hydraulic motor 10 to operate.

[0041] like Figure 1 、 Figure 2As shown, the lubricating oil circuit of the motor-driven hydraulically controlled turning mechanism consists of a turning lubricating oil manifold, or hydraulic motor return oil pipe 12. One end of the manifold is connected to the hydraulic motor return oil port, and the other end is directly connected to the lubrication module upper oil inlet 52 above the turning lubrication module 50. When the system issues a turning start command, the unit's jacking oil drives the hydraulic motor 10 to rotate. The return oil from the hydraulic motor 10 flows through the motor return oil pipe 12 (lubricating oil manifold) into the lubrication module upper oil inlet 52, ultimately flowing from the lubrication module bearing oil outlet A53, lubrication module bearing oil outlet B54, and gear oil outlet 55 to the turning mechanism's internal bearing A60, internal bearing B70, and internal gear set 80, providing lubrication for the various transmission components. As the motor and transmission component speeds increase, the motor return oil volume increases, and the amount of lubricating oil in the transmission components also increases. When the system issues a turning stop command, the hydraulic jacking oil no longer enters the hydraulic motor. This means that the turning mechanism is depleted of oil, thus achieving an automatic lubrication stop function.

[0042] like Figure 3 、 Figure 4 As shown, the lubricating oil circuit of the cranking mechanism before the improvement is as follows: one end of the lubricating oil inlet pipe 30 is connected to the unit's lubricating oil circuit, and the other end is connected to the side oil inlet 51 of the cranking lubrication module. The side oil inlet 51 of the lubricating module is connected to the P port of the solenoid valve 40, and the A port of the solenoid valve 40 is connected to the upper oil inlet 52 of the lubricating module above the cranking lubrication module 50. When the system issues a cranking start command, the solenoid valve 40 is energized, and lubricating oil flows through the lubricating oil inlet pipe 30, the side oil inlet 51 of the lubricating module, the P port of the solenoid valve, the A port of the solenoid valve, the upper oil inlet 52 of the lubricating module, and finally flows through the lubricating module bearing oil outlet A53, the lubricating module bearing oil outlet B54, and the gear oil outlet 55 to the cranking mechanism's internal bearing A60, the cranking mechanism's internal bearing B70, and the cranking mechanism's internal gear set 80, providing lubrication for various transmission components. In traditional cranking mechanism lubricating oil circuits, the amount of lubricating oil does not change with the speed of the transmission components. When the system issues a stop cranking command, the control solenoid valve loses power and the lubricating oil returns to the unit oil pan through the T port of the solenoid valve.

[0043] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement of the above embodiments made according to the technical essence of the present invention, within the spirit and principles 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 lubricating oil circuit for a motor-driven hydraulically controlled turning device, the lubricating oil circuit being mounted on the motor-driven hydraulically controlled turning device, the motor-driven hydraulically controlled turning device comprising a hydraulic motor (10), a hydraulic motor oil inlet pipe (11), and a turning device housing (20), the hydraulic motor (10) being mounted on a side of the turning device housing (20), the oil inlet of the hydraulic motor (10) being connected to the hydraulic motor oil inlet pipe (11); and characterized in that: The lubricating oil circuit includes a hydraulic motor return oil pipe (12) and a cranking lubrication module (50). The cranking lubrication module (50) is installed on the top of the cranking device housing (20). The top of the cranking lubrication module (50) is provided with an upper oil inlet (51) of the lubricating module in the longitudinal direction, and the upper oil inlet (51) of the lubricating module is connected to the end of the hydraulic motor return oil pipe (12). The other end of the hydraulic motor return oil pipe (12) is connected to the oil outlet of the hydraulic motor (10). When the hydraulic motor (10) rotates, the return oil in the hydraulic motor (10) is sent to the upper oil inlet (51) of the lubricating module (50) of the cranking device housing (20) through the hydraulic motor return oil pipe (12) and then enters the cranking device housing (20). The oil outlet of the hydraulic motor (10) is connected to the hydraulic motor return oil pipe (12).

2. The lubricating oil circuit for a motor-driven hydraulic turning device according to claim 1, characterized in that: The turning gear lubrication module (50) is provided with a lubrication module bearing oil outlet A (53), a lubrication module bearing oil outlet B (54) and a gear oil outlet (55) in the longitudinal direction. The lubricating module bearing oil outlet A (53), the lubricating module bearing oil outlet B (54) and the gear oil outlet (55) are on the same straight line, and the gear oil outlet (55) is arranged between the lubricating module bearing oil outlet A (53) and the lubricating module bearing oil outlet B (54).

3. The lubricating oil circuit for the motor-driven hydraulic turning device according to claim 2, characterized in that: The hydraulic motor return oil in the lubricating module bearing oil outlet A (53) and the lubricating module bearing oil outlet B (54) respectively lubricates the internal bearing A (60) and the internal bearing B (70) of the turning gear device on both sides of the turning gear box (20).

4. The lubricating oil circuit for a motor-driven hydraulic turning device according to claim 2 or 3, characterized in that: The lower portions of the lubricating module bearing oil outlet A (53) and the lubricating module bearing oil outlet B (54) are fixedly connected to the guide oil pipe via a locking connector, thereby guiding the return oil of the hydraulic motor at the lubricating module bearing oil outlet A (53) and the lubricating module bearing oil outlet B (54).

5. The lubricating oil circuit for the motor-driven hydraulic turning device according to claim 4, characterized in that: The guide oil pipe is an L-shaped pipe structure, and the outlet pipes of the two guide oil pipes correspond to the internal bearing A (60) and the internal bearing B (70) of the turning gear device inside the turning gear device housing (20).

6. The lubricating oil circuit for the motor-driven hydraulic turning device according to claim 2, characterized in that: The gear oil outlet (55) is arranged just above the winch housing (20), and the hydraulic motor return oil in the gear oil outlet (55) lubricates the gear set (80) inside the winch below.

7. The lubricating oil circuit for a motor-driven hydraulic turning device according to claim 1, characterized in that: The hydraulic motor oil return pipe (12) is a main pipe for the turning gear lubricating oil, and the inlet end of the hydraulic motor oil return pipe (12) is connected to the hydraulic motor (10) through a locking piece, and the other end of the hydraulic motor oil return pipe (12) bypasses the hydraulic motor (10) and is fixedly connected to the turning gear lubrication module (50) through a locking piece, and the return oil in the hydraulic motor (10) is directly sent to the turning gear lubrication module (50) through the hydraulic motor oil return pipe (12).

8. The lubricating oil circuit for the motor-driven hydraulic turning device according to claim 7, characterized in that: The hydraulic motor oil inlet pipe (11) is connected to the unit top shaft oil circuit, and the unit top shaft oil is fed into the hydraulic motor (10) through the hydraulic motor oil inlet pipe (11), driving the hydraulic motor (10) to operate.

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