Pressurization controllable oil injection device and oil injection method

Abstract

The invention relates to a pressurization controllable oil injection device and an oil injection method. The traditional oil injector cannot adjust the pressure of the oil injection system circuit, and there is no way to accurately adjust the oil injection volume. The structure is relatively complicated, and it is difficult to increase the injection pressure. The composition of the present invention includes: a constant pressure pump (2), the constant pressure pump is respectively connected to the oil tank (1) and the filter (3) through pipelines, and the filter is respectively connected to the safety valve (13) and the two-position four-way through the pipeline The electromagnetic reversing valve (4) is connected, and the two-position four-way electromagnetic reversing valve is connected with the single-acting booster cylinder (5). It is connected with one-way valve a (7) and one-way valve b (8), one-way valve a is connected with two-position four-way electromagnetic reversing valve, and a pressure gauge is installed between one-way valve b and the shunt (10) (9), a one-way valve c (11) is installed between the splitter and the oil injector (12). The invention is used for a pressurized controllable oil injection device.

Description

Technical field: [0001] The invention relates to a pressurization controllable oil injection device and an oil injection method. Background technique: [0002] The lubricator is mainly used to regularly and quantitatively spray lubricating oil or grease to the friction parts of the mechanism, so as to ensure that the mechanism is always in a good lubrication state during the work of the mechanism, and reduce the wear and tear of the mechanism and power loss. The lubricator generally uses a high-pressure oil pump to provide the injection pressure of lubricating oil, and then uses various methods to regularly control the injection time to achieve regular injection; [0003] With the improvement of work requirements and environmental conditions, there are higher requirements for the injection pressure and injection time of the injector. Conditions can be adjusted to save lubricating oil and achieve the best lubricating effect; at the same time, in some applications, the fricti...

AI Technical Summary

Problems solved by technology

[0005] The traditional mechanical lubricator cannot adjust the pressure of the oil injection system circuit, and there is no way to accurately adjust the oil injection volume. The manufacturing process of the cam is complicated, and it is difficult to repair if it is worn out.

In response to the above problems, the Alpha oiler used by Man’s ME / MC diesel engine uses an electric oil pump to provide a high-pressure common rail servo oil source, and uses this oil source as power to control the oil source with a solenoid valve. When the solenoid valve is energized, the oil source Push a large piston to move, and the large piston pushes multiple small lubricating oil plungers, and these small lubricating oil plungers spray the lubricating oil to different nozzles respectively; when the solenoid valve is powered off, the large piston and the large piston are reset by the spring The lubricating oil plunger is reset. This device has flexible injection time and injection pressure. It is a better oil injection device. The patent "a common rail cylinder oil injection lubrication system" proposes to use the common rail injection principle to control the cylinder. The lubricating oil common rail pipe part realizes the adjustment of the lubricating oil supply pressure of the lubricating oil supply part of the cylinder according to the demand, and the control of the oil injection nozzle part realizes the adjustment of the lubricating oil injection time and the lubricating oil injection amount according to the demand. The flexible and flexible control of oil injection timing improves the control accuracy and control freedom. Although the above two devices have more flexible oil injection pressure and injection time, it is difficult to increase the oil injection pressure, and its structure is relatively complicated. Therefore, the present invention proposes A pressurized controllable oil injection device

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