Automatic gear box pre-lubricating system before engine starting

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By designing the automatic prelubrication system of the gearbox before the engine starts, the engine start control module and the gearbox control module are used, combined with the electric lubricant backup pump and the lubricant engine with pump, we ensure that the gearbox is prelubricated before the engine starts, and the solution is to solve the problem of Lubrication disorder caused by timer failure or timing errors achieve sufficient lubrication of the gear box and normal operation of the system.

CN222479402UActive Publication Date: 2025-02-14SHANGHAI MERCHANT SHIP DESIGN & RES INST

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Patent Information

Application Number: CN202421243634.5
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-31
Publication Date: 2025-02-14
Estimated Expiration: 2034-05-31

AI Technical Summary

Technical Problem

In existing gearbox lubrication systems, timer failure or timing errors may lead to prelubrication disorders, inability to sufficiently lubricate the gearbox, resulting in damage to the gearbox, which will affect the normal operation of the system.

Method used

An automatic prelubrication system for gearbox before engine start is designed, including engine start control module and gearbox control module, connected by cable, using electric lubricant backup pump and lubricant engine with pump, combined with electric remote control valve, ensure that the engine is The gear box is prelubricated before starting to avoid lubrication disorders caused by timer failure or timing errors.

Benefits of technology

Regardless of whether the timer is faulty or timing errors, the system can ensure that the gearbox is fully prelubricated before the engine starts, prevent the gearbox from being damaged, ensure the normal operation of the system, and avoid unnecessary property losses.

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Abstract

The utility model provides an automatic gear box pre-lubricating system before engine starting. The automatic gear box pre-lubricating system comprises an engine starting control module and a gear box control module. The system further comprises a first lubricating oil conveying pipeline, a second lubricating oil conveying pipeline and a third lubricating oil conveying pipeline, an electric lubricating oil standby pump is arranged on the first lubricating oil conveying pipeline, and a lubricating oil machine belt pump driven by the engine through a gearbox is arranged on the second lubricating oil conveying pipeline. An electric remote control valve used for controlling the third lubricating oil conveying pipeline to be opened and closed is arranged on the third lubricating oil conveying pipeline, and the electric lubricating oil standby pump and the electric remote control valve are electrically connected with the gearbox control module through cables. The engine starting control system has the advantages that the engine starting control module sends a signal to the gearbox control module before an engine is about to be started, the gearbox control module can start the electric lubricating oil standby pump after receiving the signal, and therefore a gearbox starts to be lubricated before the engine is started.

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Description

Technical Field

[0001] The utility model relates to the technical field of gear box pre-lubrication in ship machinery, in particular to an automatic gear box pre-lubrication system before engine starting. Background Art

[0002] The driving end of the gearbox in marine machinery is mostly the engine, which is in a state of standby start-up at any time, so that once the running engine fails, the standby engine can be started and put into operation at any time. Therefore, the engine needs to be ready to start and put into operation at any time, and the gearbox needs to have a certain oil film on its lubricating parts before starting, so as to prevent the gearbox from damaging the parts in the gearbox (such as gears or bearings) after the engine is started without sufficient lubrication, thereby preventing the entire system from stopping due to lack of power and causing unnecessary property losses; the existing gearbox lubrication method is: the electric lubricating oil standby pump is started once at a certain interval (such as starting at an interval of one hour) under the action of a timer, and the running time of the electric lubricating oil standby pump after starting is also pre-set (such as running for fifteen minutes each time), and this cycle is repeated until the engine is started. This intermittent lubrication method ends, and the lubricating oil machine belt pump performs continuous lubrication.

[0003] The fixed-time lubrication method for gearboxes has the following defects: a timer failure or timing error may cause the entire pre-lubrication to be disrupted, and sufficient lubrication cannot be performed before the engine starts, which can easily cause damage to the gearbox; if the engine is in the standby state, the electric lubricating oil standby pump needs to be started and stopped repeatedly, which can easily shorten the service life of the motor; the repeated starting and stopping of the electric lubricating oil standby pump is not conducive to energy saving; therefore, in view of the above shortcomings, a system is needed that can ensure the lubrication of the gearbox even if problems occur in the existing pre-lubrication method of the gearbox. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of the utility model is to provide an automatic pre-lubrication system for the gearbox before engine start, which is used to solve the problem in the prior art that a timer failure or timing error may cause disorder in the entire pre-lubrication, and cannot be fully lubricated before the engine starts, which may easily cause damage to the gearbox.

[0005] In order to achieve the above purpose and other related purposes, the utility model provides the following technical solutions:

[0006] A gearbox automatic pre-lubrication system before engine start-up, comprising an engine start-up control module and a gearbox control module, wherein the engine start-up control module is electrically connected to the gearbox control module via a cable, and the gearbox control module is also electrically connected to the engine via a cable; further comprising a first lubricating oil delivery pipeline, a second lubricating oil delivery pipeline and a third lubricating oil delivery pipeline, wherein the first lubricating oil delivery pipeline is provided with an electric lubricating oil standby pump, the second lubricating oil delivery pipeline is provided with an oil belt pump driven by the engine through the gearbox, the third lubricating oil delivery pipeline is provided with an electric remote control valve for controlling the opening and closing of the third lubricating oil delivery pipeline, and the electric lubricating oil standby pump and the electric remote control valve are both electrically connected to the gearbox control module via a cable.

[0007] In one embodiment of the utility model, the first lubricating oil delivery pipeline is also provided with a first manual valve and a first check valve in sequence for controlling the opening and closing of the first lubricating oil delivery pipeline, and the electric lubricating oil backup pump is located between the first manual valve and the first check valve. In this technical solution, when the electric lubricating oil backup pump is repaired, the first lubricating oil delivery pipeline can be closed under the action of the first manual valve and the first check valve, thereby preventing the lubricating oil from flowing out of the first lubricating oil delivery pipeline.

[0008] In one embodiment of the utility model, the second lubricating oil delivery pipeline is also provided with a second manual valve and a second check valve in sequence for controlling the opening and closing of the second lubricating oil delivery pipeline, and the lubricating oil machine belt pump is located between the second manual valve and the second check valve. In this technical solution, when the lubricating oil machine belt pump is repaired, the second lubricating oil delivery pipeline can be closed under the action of the second manual valve and the second check valve, thereby preventing the lubricating oil from flowing out of the second lubricating oil delivery pipeline.

[0009] In one embodiment of the utility model, both ports of the third lubricating oil delivery pipeline are connected to the second lubricating oil delivery pipeline, and one port of the third lubricating oil delivery pipeline is located between the second manual valve and the lubricating oil machine belt pump, and the other port of the third lubricating oil delivery pipeline is located between the lubricating oil machine belt pump and the second check valve.

[0010] In one embodiment of the utility model, it also includes a lubricating oil suction pipeline and a lubricating oil discharge pipeline connected to the gearbox, the lubricating oil suction pipeline is connected to one port of the first lubricating oil delivery pipeline and the second lubricating oil delivery pipeline, and the lubricating oil discharge pipeline is connected to the other port of the first lubricating oil delivery pipeline and the second lubricating oil delivery pipeline.

[0011] As described above, the automatic pre-lubrication system for the gearbox before engine start of the utility model has the following beneficial effects:

[0012] The engine starting control module in the utility model sends a signal to the gear box control module before the engine is about to start. The gear box control module can start the electric lubricating oil standby pump after receiving the signal, so that the gear box starts to lubricate before the engine starts. In addition, when the electric remote control valve is in the open state, the lubricating oil machine belt pump does not supply oil to the outside, but circulates at the inlet and outlet of the lubricating oil machine belt pump. When the electric remote control valve is in the closed state, the lubricating oil machine belt pump can supply oil to the outside. Therefore, regardless of whether the timer fails or the timing is wrong, the utility model can ensure that the gear box is pre-lubricated before the engine starts, so as to prevent the gear box from damaging the components in the gear box after the engine is started without sufficient lubrication, thereby preventing the entire system from stopping due to lack of power and causing unnecessary property losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Shown is a schematic diagram of the overall structure of the automatic pre-lubrication system for the gearbox before engine start disclosed in an embodiment of the utility model.

[0014] Component number description

[0015] 1. Engine; 2. Gearbox; 3. Engine start control module; 4. Cable; 5. Gearbox control module; 6. Lubricating oil suction pipeline; 7. Lubricating oil discharge pipeline; 8. First lubricating oil delivery pipeline; 9. Second lubricating oil delivery pipeline; 10. First manual valve; 11. Electric lubricating oil standby pump; 12. First check valve; 13. Second manual valve; 14. Lubricating oil machine belt pump; 15. Second check valve; 16. Third lubricating oil delivery pipeline; 17. Electric remote control valve. DETAILED DESCRIPTION

[0016] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0017] See also Figure 1 The utility model provides an automatic pre-lubrication system for a gearbox before an engine is started, comprising an engine start control module 3 and a gearbox control module 5, wherein the engine start control module 3 is located in an engine start control box, the engine start control module 3 comprises an engine start controller, the gearbox control module 5 is located in a gearbox control box, the gearbox control module 5 comprises a gearbox controller, the engine start control module 3 is electrically connected to the gearbox control module 5 via a cable 4, and the gearbox control module 5 is also electrically connected to the engine 1 via the cable 4;

[0018] It also includes a first lubricating oil delivery pipeline 8, a second lubricating oil delivery pipeline 9 and a third lubricating oil delivery pipeline 16. The first lubricating oil delivery pipeline 8 is provided with an electric lubricating oil standby pump 11. The first lubricating oil delivery pipeline 8 is also provided with a first manual valve 10 and a first check valve 12 in sequence for controlling the opening and closing of the first lubricating oil delivery pipeline 8. The electric lubricating oil standby pump 11 is located between the first manual valve 10 and the first check valve 12. When the electric lubricating oil standby pump 11 is maintained, the first lubricating oil delivery pipeline 8 can be closed under the action of the first manual valve 10 and the first check valve 12, thereby preventing the lubricating oil from flowing out of the first lubricating oil delivery pipeline 8.

[0019] The second lubricating oil delivery pipeline 9 is provided with a lubricating oil machine pump 14 driven by the engine 1 through the gear box 2, wherein the output shaft on the engine 1 is transmission-connected with the gear in the gear box 2, and the gear in the gear box 2 is also transmission-connected with the lubricating oil machine pump 14. The second lubricating oil delivery pipeline 9 is also provided with a second manual valve 13 and a second check valve 15 for controlling the opening and closing of the second lubricating oil delivery pipeline 9 in sequence. The lubricating oil machine pump 14 is located between the second manual valve 13 and the second check valve 15. When the lubricating oil machine pump 14 is repaired, the second lubricating oil delivery pipeline 9 can be closed under the action of the second manual valve 13 and the second check valve 15, thereby preventing the lubricating oil from flowing out of the second lubricating oil delivery pipeline 9.

[0020] An electric remote control valve 17 for controlling the opening and closing of the third lubricating oil delivery pipeline 16 is provided on the third lubricating oil delivery pipeline 16. Both ends of the third lubricating oil delivery pipeline 16 are connected to the second lubricating oil delivery pipeline 9, and one end of the third lubricating oil delivery pipeline 16 is located between the second manual valve 13 and the lubricating oil machine belt pump 14, and the other end of the third lubricating oil delivery pipeline 16 is located between the lubricating oil machine belt pump 14 and the second check valve 15. The electric lubricating oil standby pump 11 and the electric remote control valve 17 are both electrically connected to the gearbox control module 5 through the cable 4, and also include a lubricating oil suction pipeline 6 and a lubricating oil discharge pipeline 7 connected to the gearbox 2, wherein the port of the lubricating oil discharge pipeline 7 is connected to the top of the gearbox 2, the port of the lubricating oil suction pipeline 6 is connected to the bottom of the gearbox 2, the lubricating oil suction pipeline 6 is connected to one end of the first lubricating oil delivery pipeline 8 and the second lubricating oil delivery pipeline 9, and the lubricating oil discharge pipeline 7 is connected to the other end of the first lubricating oil delivery pipeline 8 and the second lubricating oil delivery pipeline 9.

[0021] Specifically, the electric remote control valve 17 is always in the open state before the engine 1 is started. 3-4 seconds before the engine 1 is started, the engine start controller in the engine start control module 3 sends an "engine 1 is ready to start" signal to the gear box controller in the gear box control module 5. After receiving the signal, the electric lubricating oil standby pump 11 is started through the gear box controller in the gear box control module 5, so that the gear box 2 starts lubrication before the engine 1 is started.

[0022] When the electric lubricating oil standby pump 11 is running, the engine 1 also starts to start, and at the same time, the lubricating oil machine belt pump 14 starts to run. At the same time, because the electric remote control valve 17 is in the open state, the lubricating oil machine belt pump 14 does not supply oil to the outside, but circulates at the inlet and outlet of the lubricating oil machine belt pump 14; when the engine 1 reaches the rated speed, it means that the speed of the lubricating oil machine belt pump 14 has also reached the rated speed, so the lubricating oil machine belt pump 14 can start to supply oil to the gearbox 2 and lubricate it. After the gearbox controller in the gearbox control module 5 receives the engine 1 running signal (reaching the rated speed), it sends a signal to the electric remote control Valve 17 issues a valve closing command, gradually transitioning from lubrication by the electric lubricating oil standby pump 11 to lubrication by the lubricating oil machine pump 14; when the electric remote control valve 17 is completely closed, the electric remote control valve 17 will send a signal that the electric remote control valve 17 has been closed to the gearbox controller in the gearbox control module 5, indicating that the lubricating oil machine pump 14 has been put into use normally, and the gearbox controller in the gearbox control module 5 sends a signal to stop the electric lubricating oil standby pump 11, thereby stopping the electric lubricating oil standby pump 11, and then the gearbox 2 is lubricated by the lubricating oil machine pump 14, thereby completing the entire pre-lubrication process.

[0023] The engine start control module 3 in the utility model sends a signal to the gear box control module 5 before the engine 1 is about to start. The gear box control module 5 can start the electric lubricating oil standby pump 11 after receiving the signal, so that the gear box 2 starts to lubricate before the engine 1 starts. In addition, when the electric remote control valve 17 is in the open state, the lubricating oil machine belt pump 14 does not supply oil to the outside, but circulates at the inlet and outlet of the lubricating oil machine belt pump 14. When the electric remote control valve 17 is in the closed state, the lubricating oil machine belt pump 14 can supply oil to the outside. Therefore, regardless of whether the timer fails or the timing is wrong, it can ensure that the engine 1 pre-lubricates the gear box 2 before starting, so as to prevent the gear box 2 from damaging the components in the gear box 2 after the engine 1 is started without sufficient lubrication, thereby preventing the entire system from stopping due to lack of power and causing unnecessary property losses.

[0024] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An automatic pre-lubrication system for a gearbox before engine start, characterized in that: The invention comprises an engine starting control module (3) and a gear box control module (5), wherein the engine starting control module (3) is electrically connected to the gear box control module (5) via a cable (4), and the gear box control module (5) is also electrically connected to the engine (1) via the cable (4); The invention also comprises a first lubricating oil delivery pipeline (8), a second lubricating oil delivery pipeline (9) and a third lubricating oil delivery pipeline (16); the first lubricating oil delivery pipeline (8) is provided with an electric lubricating oil standby pump (11); the second lubricating oil delivery pipeline (9) is provided with an oil belt pump (14) driven by the engine (1) through the gear box (2); the third lubricating oil delivery pipeline (16) is provided with an electric remote control valve (17) for controlling the opening and closing of the third lubricating oil delivery pipeline (16); the electric lubricating oil standby pump (11) and the electric remote control valve (17) are both electrically connected to the gear box control module (5) through a cable (4).

2. The automatic pre-lubrication system for the gearbox before engine start according to claim 1, characterized in that: The first lubricating oil delivery pipeline (8) is also provided with a first manual valve (10) and a first check valve (12) for controlling the opening and closing of the first lubricating oil delivery pipeline (8) in sequence, and the electric lubricating oil backup pump (11) is located between the first manual valve (10) and the first check valve (12).

3. The automatic pre-lubrication system for the gearbox before engine start according to claim 1, characterized in that: The second lubricating oil delivery pipeline (9) is also provided with a second manual valve (13) and a second check valve (15) for controlling the opening and closing of the second lubricating oil delivery pipeline (9) in sequence, and the lubricating oil machine belt pump (14) is located between the second manual valve (13) and the second check valve (15).

4. The automatic pre-lubrication system for the gearbox before engine start according to claim 3, characterized in that: Both ends of the third lubricating oil delivery pipeline (16) are connected to the second lubricating oil delivery pipeline (9), and one end of the third lubricating oil delivery pipeline (16) is located between the second manual valve (13) and the lubricating oil machine belt pump (14), and the other end of the third lubricating oil delivery pipeline (16) is located between the lubricating oil machine belt pump (14) and the second check valve (15).

5. The automatic pre-lubrication system for the gearbox before engine start according to claim 1, characterized in that: It also includes a lubricating oil suction pipeline (6) and a lubricating oil discharge pipeline (7) connected to the gear box (2), wherein the lubricating oil suction pipeline (6) is connected to one end of the first lubricating oil delivery pipeline (8) and the second lubricating oil delivery pipeline (9), and the lubricating oil discharge pipeline (7) is connected to the other end of the first lubricating oil delivery pipeline (8) and the second lubricating oil delivery pipeline (9).