Oil and gas lubrication metering device and lubrication control method

Abstract

The application provides an oil and gas lubricating metering device and a lubricating control method. The metering device comprises a shell, an oil storage cavity is arranged in the shell, the oil storage cavity is provided with an oil inlet, an oil outlet and an air inlet, the air inlet is connected with an air source with adjustable air pressure, and an adjusting part is movably arranged on the shell and extends into the oil storage cavity. The adjusting part can move relative to the shell to adjust the volume of the oil storage cavity by changing the volume of the part extending into the oil storage cavity. According to the technical scheme of the application, the amount of lubricating oil and the lubricating oil spraying process can be controlled, the amount of lubricating oil is matched with the required amount of the corresponding lubricating point, the speed and process time of the lubricating oil spraying are accurately controlled, and the lubricating effect is effectively ensured.

Description

Technical Field

[0001] This invention relates to the field of oil and gas lubrication technology, and particularly to an oil and gas lubrication metering device and a lubrication control method. Background Technology

[0002] Currently, most CNC machine tool electric spindles are lubricated using oil-air lubrication. The metering element built into the oil-air mixing valve is usually a quantitative pressurized metering element. The lubrication pump periodically delivers pressurized oil, which drives the piston inside the metering element to force out a fixed amount of oil. However, this method has some shortcomings:

[0003] (1) Different power electric spindles require different lubrication conditions at each lubrication point. The existing oil storage chamber of the metering component is mostly of a fixed quantity, which cannot accurately lubricate according to the lubrication conditions at each point.

[0004] (2) Existing metering components mostly use timed and quantitative oiling. The oiling process is short and the duration is uncontrollable. When the oiling action is completed, the lubricating oil in the oil storage area is emptied. Therefore, there is an interval of several minutes between two oiling operations, which results in uneven lubrication from a time perspective.

[0005] The above-mentioned shortcomings of existing technologies will result in poor lubrication at the lubrication points, which will shorten the service life of the electric spindle in the long run. Summary of the Invention

[0006] To address the problems of unadjustable lubricating oil quantity and uncontrollable lubrication process in existing technologies, which lead to poor lubrication performance, this invention proposes an oil-gas lubrication metering device and a lubrication control method.

[0007] In a first aspect, the present invention provides an oil and gas lubrication metering device, characterized in that it includes a housing, the housing having an oil storage chamber inside, the oil storage chamber having an oil inlet, an oil spray port and an air inlet, the air inlet being connected to an air source with adjustable air pressure, and an adjusting member extending into the oil storage chamber being movably provided on the housing.

[0008] The adjusting member is movable relative to the outer casing to adjust the volume of the oil storage cavity by changing the volume of the portion of it extending into the oil storage cavity.

[0009] In one embodiment, a pressure sensor is provided in the oil storage chamber to monitor the pressure inside the oil storage chamber in order to determine the amount of lubricating oil in the oil storage chamber.

[0010] In one embodiment, the oil storage chamber is provided with an opening and closing component located between the oil inlet and the air inlet, the opening and closing component being used to close the air inlet when oil is being supplied and to close the oil inlet when oil is being injected.

[0011] In one embodiment, the oil inlet and the air inlet are located on the same side wall of the oil storage chamber, and the opening and closing assembly includes a rotary drive component disposed between the oil inlet and the air inlet and a baffle connected to the rotary drive component.

[0012] The baffle is fitted against the wall of the oil storage chamber, and the baffle can rotatably block the oil inlet or the air inlet under the drive of the rotary drive.

[0013] In one embodiment, a ball bearing is provided at the fuel injector, and a fuel injection gap is formed between the ball bearing and the edge of the fuel injector.

[0014] In one embodiment, the housing is further provided with an oil inlet channel, an oil outlet channel, and an air inlet channel. The oil inlet channel corresponds to the oil inlet and is connected to an oil source through a pipeline. The oil outlet channel corresponds to the fuel injector. The air inlet channel corresponds to the air inlet and is connected to an air source through a pipeline.

[0015] In one embodiment, the oil inlet channel is provided with a stop block and a piston, both of which have radial dimensions smaller than the oil inlet channel. An oil storage gap is formed between the piston and the inner wall of the oil inlet channel. The stop block is located at one end of the piston and close to the inlet of the oil inlet channel. An oil delivery channel that can connect to the oil inlet is formed inside the piston.

[0016] The stop block can move along the oil inlet channel to abut against the first end of the piston and close the opening of the oil delivery channel at the first end, or abut against one end of the inlet of the oil inlet channel and close the inlet of the oil inlet channel from the inside.

[0017] In one embodiment, an elastic element is fitted onto the piston, one end of which abuts against one end of the oil inlet channel corresponding to the oil inlet, and the other end abuts against a limiting platform formed on the outer wall of the piston.

[0018] Secondly, the present invention provides a lubrication control method, applied to the aforementioned oil-gas lubrication metering device, comprising the following steps:

[0019] Adjust the adjusting member on the housing of the metering device according to the lubricating oil demand to change the volume of the part of the adjusting member that extends into the oil storage chamber inside the housing, and adjust the volume of the oil storage chamber to a predetermined size.

[0020] The air inlet of the oil storage chamber is closed and the oil inlet is opened, and lubricating oil is introduced into the oil storage chamber through the oil inlet via an oil source;

[0021] Start the air source connected to the air inlet to maintain a preset air pressure at the air inlet;

[0022] The air inlet is opened and the oil inlet is closed, so that the lubricating oil in the oil storage chamber is sprayed out from the oil spray nozzle of the oil storage chamber under the action of the gas output from the air source.

[0023] In one embodiment, lubricating oil is introduced into the oil reservoir through the oil inlet via an oil source, comprising the following sub-steps:

[0024] Start the oil source and input lubricating oil into the oil inlet channel inside the housing that communicates with the oil storage chamber. This causes the stop block in the oil inlet channel to move under the push of the lubricating oil and abut against the first end of the piston in the oil inlet channel. The piston is then pushed to move along the oil inlet channel until its second end abuts against the end face of the oil inlet channel.

[0025] The oil supply channel inside the piston is aligned with the oil inlet on the end face of the oil inlet channel at the second end of the piston, and the stop block closes the oil supply channel corresponding to the channel inlet at the first end of the piston. The lubricating oil input from the oil source enters the oil storage gap between the piston and the inner wall of the oil supply channel.

[0026] When the oil supply is stopped, the stop block moves in the opposite direction under the pressure of the lubricating oil in the oil storage gap until it abuts against the inlet end of the oil inlet channel, opening the channel of the oil delivery channel and closing the inlet of the oil inlet channel;

[0027] Under the pressure difference of the local vacuum, the lubricating oil in the oil storage gap enters the oil storage chamber through the oil delivery channel and the oil inlet.

[0028] The above-mentioned technical features can be combined in various suitable ways or replaced by equivalent technical features, as long as the purpose of the present invention can be achieved.

[0029] The oil-gas lubrication metering device and lubrication control method provided by this invention have at least the following advantages compared with the prior art:

[0030] The present invention provides an oil and gas lubrication metering device and lubrication control method. Based on structural and methodological optimizations, it can control the amount of lubricating oil and the lubricating oil injection process, so that the amount of lubricating oil matches the amount required by the corresponding lubrication point, and accurately control the speed and duration of lubricating oil injection, thereby effectively ensuring the lubrication effect. Attached Figure Description

[0031] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0032] Figure 1 A schematic diagram of the metering device of the present invention is shown;

[0033] Figure 2 Showing Figure 1 A magnified view of a portion of point A in the middle.

[0034] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0035] Figure label:

[0036] 1-Outer shell, 11-Oil inlet channel, 12-Oil outlet channel, 13-Air inlet channel, 14-Oil storage gap, 2-Oil storage chamber, 21-Oil inlet, 22-Injector port, 23-Air inlet, 24-Pressure sensor, 3-Adjusting component, 4-Opening and closing assembly, 41-Rotary drive component, 42-Baffle, 5-Piston, 51-Oil delivery channel, 52-Limiting platform, 53-Elastic component, 6-Stop block, 7-Ball bearing. Detailed Implementation

[0037] The invention will now be further described with reference to the accompanying drawings.

[0038] Example 1

[0039] An embodiment of the present invention provides an oil-gas lubrication metering device, including a housing 1, an oil storage chamber 2 inside the housing 1, the oil storage chamber 2 having an oil inlet 21, an oil spray port 22 and an air inlet 23, the air inlet 23 being connected to an air source with adjustable air pressure, and an adjusting member 3 extending into the oil storage chamber 2 being movably provided on the housing 1.

[0040] The adjusting member 3 is movable relative to the outer shell 1 so as to adjust the volume of the oil storage chamber 2 by changing the volume of the part of it extending into the oil storage chamber 2.

[0041] Specifically, the metering device in this embodiment has been structurally designed to address the shortcomings of existing technologies. (See attached figures.) Figure 1 As shown, the housing 1 of the metering device has an oil storage chamber 2 inside, which is used to store lubricating oil for lubricating the corresponding equipment. An adjusting member 3 is provided on the housing 1 of the metering device, which partially extends into the oil storage chamber 2. The adjusting member 3 can be adjusted on the housing 1 to change the degree to which it extends into the oil storage chamber 2, that is, to change the volume of the portion of the adjusting member 3 extending into the oil storage chamber 2. Since the total volume of the oil storage chamber 2 itself is fixed, changing the volume of the portion of the adjusting member 3 extending into the oil storage chamber 2 can adjust the volume of the oil storage chamber 2 (i.e., the effective volume that can be used to store lubricating oil). The air inlet 23 of the oil storage chamber 2 is also connected to a pressure-adjustable air source, which can introduce pressurized gas into the oil storage chamber 2, so that the lubricating oil in the oil storage chamber 2 can be sprayed out from the oil spray nozzle 22 under the drive of the gas, thus achieving lubrication.

[0042] In practical use, the volume of the portion of the adjusting element 3 extending into the oil storage chamber 2 can be adjusted according to the amount of lubricating oil required at the corresponding lubrication point of the corresponding equipment, thereby adjusting the volume of the oil storage chamber 2 to a predetermined value. This ensures that the amount of lubricating oil stored in the oil storage chamber 2 corresponds to the predetermined amount. Then, according to lubrication requirements, the air pressure of the air source can be adjusted so that the air source outputs gas at the corresponding pressure to drive the lubricating oil in the oil storage chamber 2 to be sprayed out. Because the air pressure directly determines the speed at which the lubricating oil is sprayed out, by controlling the air pressure, the speed and duration of the predetermined amount of lubricating oil sprayed out can be controlled, thus ensuring the uniformity of lubrication from the perspective of the entire lubrication process.

[0043] Therefore, based on the structural design of the oil-gas lubrication metering device in this embodiment, the amount of lubricating oil and the process of lubricating oil injection can be controlled, so that the amount of lubricating oil matches the amount required by the corresponding lubrication point, and the speed and duration of lubricating oil injection can be precisely controlled, thereby effectively ensuring the lubrication effect.

[0044] Preferably, the adjusting member 3 adopts a bolt structure. The adjusting member 3 is threaded onto the outer shell 1, and the volume of the part extending into the oil storage cavity 2 can be changed by rotating the adjusting member 3.

[0045] Preferably, a ball bearing 7 is provided at the oil injection port 22, and an oil injection gap is formed between the ball bearing 7 and the edge of the oil injection port 22.

[0046] Specifically, the ball bearing 7 is used to form an oil injection gap at the oil injection port 22, so that the lubricating oil is sprayed out evenly through the oil injection gap, avoiding the lubricating oil being sprayed out unevenly in streams directly from the oil injection port 22, thereby improving the uniformity of lubrication at the corresponding lubrication point.

[0047] Furthermore, a pressure sensor 24 is installed in the oil storage chamber 2. The pressure sensor 24 is used to monitor the pressure inside the oil storage chamber 2 in order to determine the amount of lubricating oil in the oil storage chamber 2.

[0048] Specifically, as shown in the attached diagram. Figure 1 As shown, the pressure sensor 24 in the oil reservoir 2 can monitor the pressure in the oil reservoir 2 in real time, and reflect the current amount of lubricating oil in the oil reservoir 2 through the pressure, thereby providing a control basis for subsequent lubrication control.

[0049] Furthermore, the outer casing 1 is also equipped with an oil inlet channel 11, an oil outlet channel 12, and an air inlet channel 13. The oil inlet channel 11 corresponds to the oil inlet 21 and is connected to the oil source through a pipeline. The oil outlet channel 12 corresponds to the fuel injector 22. The air inlet channel 13 corresponds to the air inlet 23 and is connected to the air source through a pipeline.

[0050] Specifically, as shown in the attached diagram. Figure 1As shown, the oil inlet channel 11, oil outlet channel 12, and air inlet channel 13 of the outer casing 1 correspond to the oil inlet 21, oil spray port 22, and air inlet 23 of the oil storage chamber 2, respectively, and are used to provide channels for lubricating oil and pressurized gas to enter and exit the oil storage chamber 2. Furthermore, as shown in the attached diagram... Figure 1 As shown, an oil outlet connector is embedded in the oil outlet channel 12, and multiple sealing rings are provided between the oil outlet connector and the oil outlet channel 12 for sealing.

[0051] Example 2

[0052] An embodiment of the present invention provides an oil-gas lubrication metering device, including a housing 1, an oil storage chamber 2 inside the housing 1, the oil storage chamber 2 having an oil inlet 21, an oil spray port 22 and an air inlet 23, the air inlet 23 being connected to an air source with adjustable air pressure, and an adjusting member 3 extending into the oil storage chamber 2 being movably provided on the housing 1.

[0053] The adjusting member 3 is movable relative to the outer shell 1 so as to adjust the volume of the oil storage chamber 2 by changing the volume of the part of it extending into the oil storage chamber 2.

[0054] Specifically, the metering device in this embodiment has been structurally designed to address the shortcomings of existing technologies. (See attached figures.) Figure 1 As shown, the housing 1 of the metering device has an oil storage chamber 2 inside, which is used to store lubricating oil for lubricating the corresponding equipment. An adjusting member 3 is provided on the housing 1 of the metering device, which partially extends into the oil storage chamber 2. The adjusting member 3 can be adjusted on the housing 1 to change the degree to which it extends into the oil storage chamber 2, that is, to change the volume of the portion of the adjusting member 3 extending into the oil storage chamber 2. Since the total volume of the oil storage chamber 2 itself is fixed, changing the volume of the portion of the adjusting member 3 extending into the oil storage chamber 2 can adjust the volume of the oil storage chamber 2 (i.e., the effective volume that can be used to store lubricating oil). The air inlet 23 of the oil storage chamber 2 is also connected to a pressure-adjustable air source, which can introduce pressurized gas into the oil storage chamber 2, so that the lubricating oil in the oil storage chamber 2 can be sprayed out from the oil spray nozzle 22 under the drive of the gas, thus achieving lubrication.

[0055] In practical use, the volume of the portion of the adjusting element 3 extending into the oil storage chamber 2 can be adjusted according to the amount of lubricating oil required at the corresponding lubrication point of the corresponding equipment, thereby adjusting the volume of the oil storage chamber 2 to a predetermined value. This ensures that the amount of lubricating oil stored in the oil storage chamber 2 corresponds to the predetermined amount. Then, according to lubrication requirements, the air pressure of the air source can be adjusted so that the air source outputs gas at the corresponding pressure to drive the lubricating oil in the oil storage chamber 2 to be sprayed out. Because the air pressure directly determines the speed at which the lubricating oil is sprayed out, by controlling the air pressure, the speed and duration of the predetermined amount of lubricating oil sprayed out can be controlled, thus ensuring the uniformity of lubrication from the perspective of the entire lubrication process.

[0056] Therefore, based on the structural design of the oil-gas lubrication metering device in this embodiment, the amount of lubricating oil and the process of lubricating oil injection can be controlled, so that the amount of lubricating oil matches the amount required by the corresponding lubrication point, and the speed and duration of lubricating oil injection can be precisely controlled, thereby effectively ensuring the lubrication effect.

[0057] Preferably, the adjusting member 3 adopts a bolt structure. The adjusting member 3 is threaded onto the outer shell 1, and the volume of the part extending into the oil storage cavity 2 can be changed by rotating the adjusting member 3.

[0058] Preferably, a ball bearing 7 is provided at the oil injection port 22, and an oil injection gap is formed between the ball bearing 7 and the edge of the oil injection port 22.

[0059] Specifically, the ball bearing 7 is used to form an oil injection gap at the oil injection port 22, so that the lubricating oil is sprayed out evenly through the oil injection gap, avoiding the lubricating oil being sprayed out unevenly in streams directly from the oil injection port 22, thereby improving the uniformity of lubrication at the corresponding lubrication point.

[0060] Furthermore, a pressure sensor 24 is installed in the oil storage chamber 2. The pressure sensor 24 is used to monitor the pressure inside the oil storage chamber 2 in order to determine the amount of lubricating oil in the oil storage chamber 2.

[0061] Specifically, as shown in the attached diagram. Figure 1 As shown, the pressure sensor 24 in the oil reservoir 2 can monitor the pressure in the oil reservoir 2 in real time, and reflect the current amount of lubricating oil in the oil reservoir 2 through the pressure, thereby providing a control basis for subsequent lubrication control.

[0062] Furthermore, the outer casing 1 is also equipped with an oil inlet channel 11, an oil outlet channel 12, and an air inlet channel 13. The oil inlet channel 11 corresponds to the oil inlet 21 and is connected to the oil source through a pipeline. The oil outlet channel 12 corresponds to the fuel injector 22. The air inlet channel 13 corresponds to the air inlet 23 and is connected to the air source through a pipeline.

[0063] Specifically, as shown in the attached diagram. Figure 1 As shown, the oil inlet channel 11, oil outlet channel 12, and air inlet channel 13 of the outer casing 1 correspond to the oil inlet 21, oil spray port 22, and air inlet 23 of the oil storage chamber 2, respectively, and are used to provide channels for lubricating oil and pressurized gas to enter and exit the oil storage chamber 2. Furthermore, as shown in the attached diagram... Figure 1 As shown, an oil outlet connector is embedded in the oil outlet channel 12, and multiple sealing rings are provided between the oil outlet connector and the oil outlet channel 12 for sealing.

[0064] Furthermore, the oil storage chamber 2 is provided with an opening and closing component 4 located between the oil inlet 21 and the air inlet 23. The opening and closing component 4 is used to close the air inlet 23 when oil is being injected and to close the oil inlet 21 when oil is being injected.

[0065] Specifically, as shown in the attached diagram. Figure 1 As shown Figure 2 As shown, the opening and closing assembly 4 is used to control the opening and closing of the oil inlet 21 and the air inlet 23 at different stages. Specifically, during the oil inlet stage, the lubricating oil output from the external oil source needs to enter the oil reservoir 2 through the oil inlet 21, so the oil inlet 21 of the oil reservoir 2 needs to be opened. At this time, it is necessary to prevent the lubricating oil from flowing out of the air inlet 23, so the air inlet 23 needs to be closed. During the injection stage, the oil reservoir 2 is already filled with a predetermined amount of lubricating oil, and the air inlet 23, which serves as the power source for injection, needs to be opened. At this time, it is also necessary to prevent the lubricating oil from flowing out of the oil inlet 21, so the oil inlet 21 needs to be closed. Therefore, according to different stages, the opening and closing assembly 4 switches the opening and closing states of the oil inlet 21 and the air inlet 23, opening one and closing the other.

[0066] Furthermore, the oil inlet 21 and the air inlet 23 are located on the same side wall of the oil storage chamber 2, and the opening and closing assembly 4 includes a rotary drive 41 disposed between the oil inlet 21 and the air inlet 23 and a baffle 42 connected to the rotary drive 41.

[0067] The baffle 42 is fitted to the wall of the oil storage chamber 2, and the baffle 42 can rotatably block the oil inlet 21 or the air inlet 23 under the drive of the rotary drive member 41.

[0068] Specifically, as shown in the attached diagram. Figure 2 As shown, both the oil inlet 21 and the air inlet 23 are located on the bottom wall of the oil reservoir 2 and are spaced apart. A rotary drive 41 (which can be a motor) is embedded in the bottom wall of the oil reservoir 2 and located between the oil inlet 21 and the air inlet 23. A baffle 42 is connected to the output end of the rotary drive 41, and the baffle 42 is in contact with the bottom wall of the oil reservoir 2. Thus, the baffle 42 can rotate under the drive of the rotary drive 41 to selectively block the oil inlet 21 or the air inlet 23, achieving control over the opening and closing of the oil inlet 21 and the air inlet 23.

[0069] Example 3

[0070] An embodiment of the present invention provides an oil-gas lubrication metering device, including a housing 1, an oil storage chamber 2 inside the housing 1, the oil storage chamber 2 having an oil inlet 21, an oil spray port 22 and an air inlet 23, the air inlet 23 being connected to an air source with adjustable air pressure, and an adjusting member 3 extending into the oil storage chamber 2 being movably provided on the housing 1.

[0071] The adjusting member 3 is movable relative to the outer shell 1 so as to adjust the volume of the oil storage chamber 2 by changing the volume of the part of it extending into the oil storage chamber 2.

[0072] Specifically, the metering device in this embodiment has been structurally designed to address the shortcomings of existing technologies. (See attached figures.) Figure 1As shown, the housing 1 of the metering device has an oil storage chamber 2 inside, which is used to store lubricating oil for lubricating the corresponding equipment. An adjusting member 3 is provided on the housing 1 of the metering device, which partially extends into the oil storage chamber 2. The adjusting member 3 can be adjusted on the housing 1 to change the degree to which it extends into the oil storage chamber 2, that is, to change the volume of the portion of the adjusting member 3 extending into the oil storage chamber 2. Since the total volume of the oil storage chamber 2 itself is fixed, changing the volume of the portion of the adjusting member 3 extending into the oil storage chamber 2 can adjust the volume of the oil storage chamber 2 (i.e., the effective volume that can be used to store lubricating oil). The air inlet 23 of the oil storage chamber 2 is also connected to a pressure-adjustable air source, which can introduce pressurized gas into the oil storage chamber 2, so that the lubricating oil in the oil storage chamber 2 can be sprayed out from the oil spray nozzle 22 under the drive of the gas, thus achieving lubrication.

[0073] In practical use, the volume of the portion of the adjusting element 3 extending into the oil storage chamber 2 can be adjusted according to the amount of lubricating oil required at the corresponding lubrication point of the corresponding equipment, thereby adjusting the volume of the oil storage chamber 2 to a predetermined value. This ensures that the amount of lubricating oil stored in the oil storage chamber 2 corresponds to the predetermined amount. Then, according to lubrication requirements, the air pressure of the air source can be adjusted so that the air source outputs gas at the corresponding pressure to drive the lubricating oil in the oil storage chamber 2 to be sprayed out. Because the air pressure directly determines the speed at which the lubricating oil is sprayed out, by controlling the air pressure, the speed and duration of the predetermined amount of lubricating oil sprayed out can be controlled, thus ensuring the uniformity of lubrication from the perspective of the entire lubrication process.

[0074] Therefore, based on the structural design of the oil-gas lubrication metering device in this embodiment, the amount of lubricating oil and the lubricating oil injection process can be controlled, so that the amount of lubricating oil matches the amount required by the corresponding lubrication point, and the speed and duration of lubricating oil injection can be precisely controlled, thereby effectively ensuring the lubrication effect.

[0075] Preferably, the adjusting member 3 adopts a bolt structure. The adjusting member 3 is threaded onto the outer shell 1, and the volume of the part extending into the oil storage cavity 2 can be changed by rotating the adjusting member 3.

[0076] Preferably, a ball bearing 7 is provided at the oil injection port 22, and an oil injection gap is formed between the ball bearing 7 and the edge of the oil injection port 22.

[0077] Specifically, the ball bearing 7 is used to form an oil injection gap at the oil injection port 22, so that the lubricating oil is sprayed out evenly through the oil injection gap, avoiding the lubricating oil being sprayed out unevenly in streams directly from the oil injection port 22, thereby improving the uniformity of lubrication at the corresponding lubrication point.

[0078] Furthermore, a pressure sensor 24 is installed in the oil storage chamber 2. The pressure sensor 24 is used to monitor the pressure inside the oil storage chamber 2 in order to determine the amount of lubricating oil in the oil storage chamber 2.

[0079] Specifically, as shown in the attached diagram. Figure 1 As shown, the pressure sensor 24 in the oil reservoir 2 can monitor the pressure in the oil reservoir 2 in real time, and reflect the current amount of lubricating oil in the oil reservoir 2 through the pressure, thereby providing a control basis for subsequent lubrication control.

[0080] Furthermore, the outer casing 1 is also equipped with an oil inlet channel 11, an oil outlet channel 12, and an air inlet channel 13. The oil inlet channel 11 corresponds to the oil inlet 21 and is connected to the oil source through a pipeline. The oil outlet channel 12 corresponds to the fuel injector 22. The air inlet channel 13 corresponds to the air inlet 23 and is connected to the air source through a pipeline.

[0081] Specifically, as shown in the attached diagram. Figure 1 As shown, the oil inlet channel 11, oil outlet channel 12, and air inlet channel 13 of the outer casing 1 correspond to the oil inlet 21, oil spray port 22, and air inlet 23 of the oil storage chamber 2, respectively, and are used to provide channels for lubricating oil and pressurized gas to enter and exit the oil storage chamber 2. Furthermore, as shown in the attached diagram... Figure 1 As shown, an oil outlet connector is embedded in the oil outlet channel 12, and multiple sealing rings are provided between the oil outlet connector and the oil outlet channel 12 for sealing.

[0082] Furthermore, the oil storage chamber 2 is provided with an opening and closing component 4 located between the oil inlet 21 and the air inlet 23. The opening and closing component 4 is used to close the air inlet 23 when oil is being injected and to close the oil inlet 21 when oil is being injected.

[0083] Specifically, as shown in the attached diagram. Figure 1 As shown Figure 2 As shown, the opening and closing assembly 4 is used to control the opening and closing of the oil inlet 21 and the air inlet 23 at different stages. Specifically, during the oil inlet stage, the lubricating oil output from the external oil source needs to enter the oil reservoir 2 through the oil inlet 21, so the oil inlet 21 of the oil reservoir 2 needs to be opened. At this time, it is necessary to prevent the lubricating oil from flowing out of the air inlet 23, so the air inlet 23 needs to be closed. During the injection stage, the oil reservoir 2 is already filled with a predetermined amount of lubricating oil, and the air inlet 23, which serves as the power source for injection, needs to be opened. At this time, it is also necessary to prevent the lubricating oil from flowing out of the oil inlet 21, so the oil inlet 21 needs to be closed. Therefore, according to different stages, the opening and closing assembly 4 switches the opening and closing states of the oil inlet 21 and the air inlet 23, opening one and closing the other.

[0084] Furthermore, the oil inlet 21 and the air inlet 23 are located on the same side wall of the oil storage chamber 2, and the opening and closing assembly 4 includes a rotary drive 41 disposed between the oil inlet 21 and the air inlet 23 and a baffle 42 connected to the rotary drive 41.

[0085] The baffle 42 is fitted to the wall of the oil storage chamber 2, and the baffle 42 can rotatably block the oil inlet 21 or the air inlet 23 under the drive of the rotary drive member 41.

[0086] Specifically, as shown in the attached diagram. Figure 2 As shown, both the oil inlet 21 and the air inlet 23 are located on the bottom wall of the oil reservoir 2 and are spaced apart. A rotary drive 41 (which can be a motor) is embedded in the bottom wall of the oil reservoir 2 and located between the oil inlet 21 and the air inlet 23. A baffle 42 is connected to the output end of the rotary drive 41, and the baffle 42 is in contact with the bottom wall of the oil reservoir 2. Thus, the baffle 42 can rotate under the drive of the rotary drive 41 to selectively block the oil inlet 21 or the air inlet 23, achieving control over the opening and closing of the oil inlet 21 and the air inlet 23.

[0087] Furthermore, the oil inlet channel 11 is provided with a stop block 6 and a piston 5, both of which have radial dimensions smaller than the oil inlet channel 11. An oil storage gap 14 is formed between the piston 5 and the inner wall of the oil inlet channel 11. The stop block 6 is located at one end of the piston 5 and close to the inlet of the oil inlet channel 11. An oil delivery channel 51 that can connect to the oil inlet 21 is formed inside the piston 5.

[0088] The stop block 6 can move along the oil inlet channel 11 to abut against the first end of the piston 5 and close the channel opening of the oil delivery channel 51 at the first end, or abut against one end of the inlet of the oil inlet channel 11 and close the inlet of the oil inlet channel 11 from the inside.

[0089] Specifically, as shown in the attached diagram. Figure 1 As shown, the oil inlet channel 11 is also provided with an oil inlet assembly consisting of a piston 5 and a stop block 6. The piston 5 and the stop block 6 are distributed along the axial direction of the oil inlet channel 11 and can both move along the oil inlet channel 11. The piston 5 has a tubular structure and forms an oil delivery channel 51 inside it.

[0090] Refer to the attached diagram. Figure 1 When an external oil source supplies oil into the oil inlet channel 11, the lubricating oil entering through the inlet of the oil inlet channel 11 first pushes the stop block 6 towards the piston 5. After the stop block 6 abuts against the first end of the piston 5, the lubricating oil further pushes the piston 5 until the second end of the piston 5 abuts against the end face of the corresponding end of the oil inlet channel 11. At this time, the stop block 6 closes the first channel opening formed by the oil supply channel 51 on the first end of the piston 5; the second end of the piston 5 abuts against the end face of the corresponding end of the oil inlet channel 11, and the oil inlet 21 is formed on the end face of the oil inlet channel 11 at that end, and the size of the oil inlet 21 is smaller than the end face of the oil inlet channel 11. The size of the second channel opening formed by the oil supply channel 51 on the second end of the piston 5 is larger than the oil inlet 21 but smaller than the end face of the oil inlet channel 11. Therefore, the second channel opening of the oil supply channel 51 is connected to the oil inlet 21 but isolated from the oil inlet channel 11.

[0091] Therefore, initially, the lubricating oil cannot enter the oil storage chamber 2 through the oil inlet 21. Instead, it enters the oil storage gap 14 between the piston 5 and the inner wall of the oil inlet channel 11 through the gap between the baffle 6 and the inner wall of the oil inlet channel 11 for temporary storage. Then, the oil source stops operating, and the lubricating oil inside the oil source and the pipeline connecting the oil source and the oil inlet channel 11 flows back, thus reducing the lubricating oil pressure acting on the baffle 6. Therefore, the baffle 6 moves in the opposite direction under the pressure difference between the lubricating oil in the oil storage gap 14 and the external pressure, i.e., moves away from the piston 5. The baffle 6 blocks the inlet of the oil inlet channel 11 under pressure. At this time, because the movement of the baffle 6 opens the first channel of the oil delivery channel 51, under the pressure difference of the partial vacuum, the lubricating oil in the oil storage gap 14 can enter the oil delivery channel 51 and enter the oil storage chamber 2 through the oil inlet 21, thus achieving oil delivery to the oil storage chamber 2. At the same time, piston 5 may also move away from oil storage chamber 2, thereby directly opening oil inlet 21 and connecting oil inlet 21 with oil inlet channel 11. Therefore, lubricating oil in oil storage gap 14 can also enter oil storage chamber 2 directly through oil inlet 21 without going through oil delivery channel 51.

[0092] Based on this structural design, the oil reservoir 2 is indirectly fed into the oil reservoir 2, instead of the lubricating oil from the oil source being directly fed into the oil reservoir 2. The purpose is to avoid the lubricating oil from the oil source (using an oil pump) directly and quickly entering the oil reservoir 2 under a large delivery pressure, which would cause the lubricating oil volume to fluctuate beyond the preset value. When the oil is fed indirectly, the pressure is lower, the oil flow is smoother, and the oil volume is more accurate.

[0093] Preferably, the volume of the oil storage gap 14 is greater than the maximum volume of the oil storage chamber 2.

[0094] Furthermore, an elastic element 53 is fitted on the piston 5. One end of the elastic element 53 abuts against one end of the oil inlet channel 11 corresponding to the oil inlet 21, and the other end abuts against the limiting platform 52 formed on the outer wall of the piston 5.

[0095] Specifically, as shown in the attached diagram. Figure 1 As shown, the elastic element 53 is used to provide power for the reverse movement of the piston 5, so that on the basis of the movement of the stop block 6 driven by the pressure difference, the piston 5 moves further under the drive of the pressure difference and the elastic element 53, thereby increasing the scale of the local vacuum and ensuring the power for lubricating oil to enter the oil storage chamber 2.

[0096] Example 4

[0097] An embodiment of the present invention provides a lubrication control method applied to an oil-gas lubrication metering device, comprising the following steps:

[0098] Step S100: Adjust the adjusting member on the housing of the metering device according to the lubricating oil demand to change the volume of the part of the adjusting member that extends into the oil storage chamber inside the housing, and adjust the volume of the oil storage chamber to a predetermined size.

[0099] Specifically, the adjusting component on the outer casing is first adjusted according to the amount of lubricating oil required by the lubrication point, so that the effective volume of the oil reservoir is adjusted to correspond to the amount of lubricating oil required.

[0100] Step S200: Seal the air inlet of the oil reservoir and open the oil inlet, and input lubricating oil into the oil reservoir through the oil source via the oil inlet.

[0101] Step S210: Start the oil source and input lubricating oil into the oil inlet channel inside the outer casing that is connected to the oil storage chamber. This causes the stop block in the oil inlet channel to move under the push of the lubricating oil and come into contact with the first end of the piston in the oil inlet channel. The piston is then pushed to move along the oil inlet channel until its second end comes into contact with the end face of the oil inlet channel.

[0102] Step S230: The oil supply channel inside the piston corresponds to the oil inlet formed on the end face of the oil inlet channel at the second end of the piston, and the stop block closes the oil supply channel corresponding to the channel inlet at the first end of the piston, so that the lubricating oil input from the oil source enters the oil storage gap between the piston and the inner wall of the oil supply channel.

[0103] Step S230: Stop the oil supply. Under the pressure of the lubricating oil in the oil storage gap, the stop block moves in the opposite direction to abut against the inlet end of the oil inlet channel, opening the channel of the oil delivery channel and closing the inlet of the oil inlet channel.

[0104] Step S240: Under the pressure difference of the local vacuum, the lubricating oil in the oil storage gap enters the oil storage chamber through the oil delivery channel and the oil inlet.

[0105] Specifically, the opening and closing states of the air inlet and oil inlet are controlled by the opening and closing components. Based on the piston and stop in the oil inlet channel, lubricating oil is indirectly input into the oil storage chamber. The purpose is to avoid the lubricating oil directly and quickly entering the oil storage chamber under the large delivery pressure of the oil source (using an oil pump), which would cause large fluctuations in the amount of lubricating oil and the actual value exceeding the preset value. When using indirect oil inlet, the pressure is lower, the oil inlet is smoother, and the amount of oil inlet is more accurate.

[0106] Step S300: Start the air source connected to the air inlet to maintain a preset air pressure at the air inlet.

[0107] Specifically, after the pressure sensor in the oil reservoir determines that the oil reservoir is full of lubricating oil through pressure monitoring, it sends a feedback signal to the air source. The air source starts and maintains a preset pressure at the air inlet of the oil reservoir to prevent the lubricating oil inside the oil reservoir from flowing out of the air inlet when the air inlet is opened.

[0108] Step S400: Open the air inlet and close the oil inlet, so that the lubricating oil in the oil reservoir is sprayed out from the oil spray nozzle of the oil reservoir under the action of the gas output from the air source.

[0109] Specifically, a pressure value can be given visually to ensure that lubricating oil is sprayed out at a constant air pressure. Alternatively, the air pressure can be controlled in real time during the oil spraying process to meet different needs.

[0110] Furthermore, the lubrication control method of this embodiment corresponds to the oil-gas lubrication metering device. The oil-gas lubrication metering device includes a housing 1, and the housing 1 has an oil storage chamber 2 inside. The oil storage chamber 2 has an oil inlet 21, an oil spray port 22, and an air inlet 23. The air inlet 23 is connected to an air source with adjustable air pressure. An adjusting member 3 that extends into the oil storage chamber 2 is movably provided on the housing 1.

[0111] The adjusting member 3 is movable relative to the outer shell 1 so as to adjust the volume of the oil storage chamber 2 by changing the volume of the part of it extending into the oil storage chamber 2.

[0112] Specifically, the metering device in this embodiment has been structurally designed to address the shortcomings of existing technologies. (See attached figures.) Figure 1 As shown, the housing 1 of the metering device has an oil storage chamber 2 inside, which is used to store lubricating oil for lubricating the corresponding equipment. An adjusting member 3 is provided on the housing 1 of the metering device, which partially extends into the oil storage chamber 2. The adjusting member 3 can be adjusted on the housing 1 to change the degree to which it extends into the oil storage chamber 2, that is, to change the volume of the portion of the adjusting member 3 extending into the oil storage chamber 2. Since the total volume of the oil storage chamber 2 itself is fixed, changing the volume of the portion of the adjusting member 3 extending into the oil storage chamber 2 can adjust the volume of the oil storage chamber 2 (i.e., the effective volume that can be used to store lubricating oil). The air inlet 23 of the oil storage chamber 2 is also connected to a pressure-adjustable air source, which can introduce pressurized gas into the oil storage chamber 2, so that the lubricating oil in the oil storage chamber 2 can be sprayed out from the oil spray nozzle 22 under the drive of the gas, thus achieving lubrication.

[0113] In practical use, the volume of the portion of the adjusting element 3 extending into the oil storage chamber 2 can be adjusted according to the amount of lubricating oil required at the corresponding lubrication point of the corresponding equipment, thereby adjusting the volume of the oil storage chamber 2 to a predetermined value. This ensures that the amount of lubricating oil stored in the oil storage chamber 2 corresponds to the predetermined amount. Then, according to lubrication requirements, the air pressure of the air source can be adjusted so that the air source outputs gas at the corresponding pressure to drive the lubricating oil in the oil storage chamber 2 to be sprayed out. Because the air pressure directly determines the speed at which the lubricating oil is sprayed out, by controlling the air pressure, the speed and duration of the predetermined amount of lubricating oil sprayed out can be controlled, thus ensuring the uniformity of lubrication from the perspective of the entire lubrication process.

[0114] Therefore, based on the structural design of the oil-gas lubrication metering device in this embodiment, the amount of lubricating oil and the process of lubricating oil injection can be controlled, so that the amount of lubricating oil matches the amount required by the corresponding lubrication point, and the speed and duration of lubricating oil injection can be precisely controlled, thereby effectively ensuring the lubrication effect.

[0115] Preferably, the adjusting member 3 adopts a bolt structure. The adjusting member 3 is threaded onto the outer shell 1, and the volume of the part extending into the oil storage cavity 2 can be changed by rotating the adjusting member 3.

[0116] Preferably, a ball bearing 7 is provided at the oil injection port 22, and an oil injection gap is formed between the ball bearing 7 and the edge of the oil injection port 22.

[0117] Specifically, the ball bearing 7 is used to form an oil injection gap at the oil injection port 22, so that the lubricating oil is sprayed out evenly through the oil injection gap, avoiding the lubricating oil being sprayed out unevenly in streams directly from the oil injection port 22, thereby improving the uniformity of lubrication at the corresponding lubrication point.

[0118] Furthermore, a pressure sensor 24 is installed in the oil storage chamber 2. The pressure sensor 24 is used to monitor the pressure inside the oil storage chamber 2 in order to determine the amount of lubricating oil in the oil storage chamber 2.

[0119] Specifically, as shown in the attached diagram. Figure 1 As shown, the pressure sensor 24 in the oil reservoir 2 can monitor the pressure in the oil reservoir 2 in real time, and reflect the current amount of lubricating oil in the oil reservoir 2 through the pressure, thereby providing a control basis for subsequent lubrication control.

[0120] Furthermore, the outer casing 1 is also equipped with an oil inlet channel 11, an oil outlet channel 12, and an air inlet channel 13. The oil inlet channel 11 corresponds to the oil inlet 21 and is connected to the oil source through a pipeline. The oil outlet channel 12 corresponds to the fuel injector 22. The air inlet channel 13 corresponds to the air inlet 23 and is connected to the air source through a pipeline.

[0121] Specifically, as shown in the attached diagram. Figure 1 As shown, the oil inlet channel 11, oil outlet channel 12, and air inlet channel 13 of the outer casing 1 correspond to the oil inlet 21, oil spray port 22, and air inlet 23 of the oil storage chamber 2, respectively, and are used to provide channels for lubricating oil and pressurized gas to enter and exit the oil storage chamber 2. Furthermore, as shown in the attached diagram... Figure 1 As shown, an oil outlet connector is embedded in the oil outlet channel 12, and multiple sealing rings are provided between the oil outlet connector and the oil outlet channel 12 for sealing.

[0122] Furthermore, the oil storage chamber 2 is provided with an opening and closing component 4 located between the oil inlet 21 and the air inlet 23. The opening and closing component 4 is used to close the air inlet 23 when oil is being injected and to close the oil inlet 21 when oil is being injected.

[0123] Specifically, as shown in the attached diagram. Figure 1As shown Figure 2 As shown, the opening and closing assembly 4 is used to control the opening and closing of the oil inlet 21 and the air inlet 23 at different stages. Specifically, during the oil inlet stage, the lubricating oil output from the external oil source needs to enter the oil reservoir 2 through the oil inlet 21, so the oil inlet 21 of the oil reservoir 2 needs to be opened. At this time, it is necessary to prevent the lubricating oil from flowing out of the air inlet 23, so the air inlet 23 needs to be closed. During the injection stage, the oil reservoir 2 is already filled with a predetermined amount of lubricating oil, and the air inlet 23, which serves as the power source for injection, needs to be opened. At this time, it is also necessary to prevent the lubricating oil from flowing out of the oil inlet 21, so the oil inlet 21 needs to be closed. Therefore, according to different stages, the opening and closing assembly 4 switches the opening and closing states of the oil inlet 21 and the air inlet 23, opening one and closing the other.

[0124] Furthermore, the oil inlet 21 and the air inlet 23 are located on the same side wall of the oil storage chamber 2, and the opening and closing assembly 4 includes a rotary drive 41 disposed between the oil inlet 21 and the air inlet 23 and a baffle 42 connected to the rotary drive 41.

[0125] The baffle 42 is fitted to the wall of the oil storage chamber 2, and the baffle 42 can rotatably block the oil inlet 21 or the air inlet 23 under the drive of the rotary drive member 41.

[0126] Specifically, as shown in the attached diagram. Figure 2 As shown, both the oil inlet 21 and the air inlet 23 are located on the bottom wall of the oil reservoir 2 and are spaced apart. A rotary drive 41 (which can be a motor) is embedded in the bottom wall of the oil reservoir 2 and located between the oil inlet 21 and the air inlet 23. A baffle 42 is connected to the output end of the rotary drive 41, and the baffle 42 is in contact with the bottom wall of the oil reservoir 2. Thus, the baffle 42 can rotate under the drive of the rotary drive 41 to selectively block the oil inlet 21 or the air inlet 23, achieving control over the opening and closing of the oil inlet 21 and the air inlet 23.

[0127] Furthermore, the oil inlet channel 11 is provided with a stop block 6 and a piston 5, both of which have radial dimensions smaller than the oil inlet channel 11. An oil storage gap 14 is formed between the piston 5 and the inner wall of the oil inlet channel 11. The stop block 6 is located at one end of the piston 5 and close to the inlet of the oil inlet channel 11. An oil delivery channel 51 that can connect to the oil inlet 21 is formed inside the piston 5.

[0128] The stop block 6 can move along the oil inlet channel 11 to abut against the first end of the piston 5 and close the channel opening of the oil delivery channel 51 at the first end, or abut against one end of the inlet of the oil inlet channel 11 and close the inlet of the oil inlet channel 11 from the inside.

[0129] Specifically, as shown in the attached diagram. Figure 1As shown, the oil inlet channel 11 is also provided with an oil inlet assembly consisting of a piston 5 and a stop block 6. The piston 5 and the stop block 6 are distributed along the axial direction of the oil inlet channel 11 and can both move along the oil inlet channel 11. The piston 5 has a tubular structure and forms an oil delivery channel 51 inside it.

[0130] Refer to the attached diagram. Figure 1 When an external oil source supplies oil into the oil inlet channel 11, the lubricating oil entering through the inlet of the oil inlet channel 11 first pushes the stop block 6 towards the piston 5. After the stop block 6 abuts against the first end of the piston 5, the lubricating oil further pushes the piston 5 until the second end of the piston 5 abuts against the end face of the corresponding end of the oil inlet channel 11. At this time, the stop block 6 closes the first channel opening formed by the oil supply channel 51 on the first end of the piston 5; the second end of the piston 5 abuts against the end face of the corresponding end of the oil inlet channel 11, and the oil inlet 21 is formed on the end face of the oil inlet channel 11 at that end, and the size of the oil inlet 21 is smaller than the end face of the oil inlet channel 11. The size of the second channel opening formed by the oil supply channel 51 on the second end of the piston 5 is larger than the oil inlet 21 but smaller than the end face of the oil inlet channel 11. Therefore, the second channel opening of the oil supply channel 51 is connected to the oil inlet 21 but isolated from the oil inlet channel 11.

[0131] Therefore, initially, the lubricating oil cannot enter the oil storage chamber 2 through the oil inlet 21. Instead, it enters the oil storage gap 14 between the piston 5 and the inner wall of the oil inlet channel 11 through the gap between the baffle 6 and the inner wall of the oil inlet channel 11 for temporary storage. Then, the oil source stops operating, and the lubricating oil inside the oil source and the pipeline connecting the oil source and the oil inlet channel 11 flows back, thus reducing the lubricating oil pressure acting on the baffle 6. Therefore, the baffle 6 moves in the opposite direction under the pressure difference between the lubricating oil in the oil storage gap 14 and the external pressure, i.e., moves away from the piston 5. The baffle 6 blocks the inlet of the oil inlet channel 11 under pressure. At this time, because the movement of the baffle 6 opens the first channel of the oil delivery channel 51, under the pressure difference of the partial vacuum, the lubricating oil in the oil storage gap 14 can enter the oil delivery channel 51 and enter the oil storage chamber 2 through the oil inlet 21, thus achieving oil delivery to the oil storage chamber 2. At the same time, piston 5 may also move away from oil storage chamber 2, thereby directly opening oil inlet 21 and connecting oil inlet 21 with oil inlet channel 11. Therefore, lubricating oil in oil storage gap 14 can also enter oil storage chamber 2 directly through oil inlet 21 without going through oil delivery channel 51.

[0132] Based on this structural design, the oil reservoir 2 is indirectly fed into the oil reservoir 2, instead of the lubricating oil from the oil source being directly fed into the oil reservoir 2. The purpose is to avoid the lubricating oil from the oil source (using an oil pump) directly and quickly entering the oil reservoir 2 under a large delivery pressure, which would cause the lubricating oil volume to fluctuate beyond the preset value. When the oil is fed indirectly, the pressure is lower, the oil flow is smoother, and the oil volume is more accurate.

[0133] Preferably, the volume of the oil storage gap 14 is greater than the maximum volume of the oil storage chamber 2.

[0134] Furthermore, an elastic element 53 is fitted on the piston 5. One end of the elastic element 53 abuts against one end of the oil inlet channel 11 corresponding to the oil inlet 21, and the other end abuts against the limiting platform 52 formed on the outer wall of the piston 5.

[0135] Specifically, as shown in the attached diagram. Figure 1 As shown, the elastic element 53 is used to provide power for the reverse movement of the piston 5, so that on the basis of the movement of the stop block 6 driven by the pressure difference, the piston 5 moves further under the drive of the pressure difference and the elastic element 53, thereby increasing the scale of the local vacuum and ensuring the power for lubricating oil to enter the oil storage chamber 2.

[0136] In the description of this invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0137] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A lubrication control method, applied to an oil-gas lubrication metering device, characterized in that, The oil and gas lubrication metering device includes a housing, and the housing has an oil storage chamber inside. The oil storage chamber has an oil inlet, an oil spray port and an air inlet. The air inlet is connected to an air source with adjustable air pressure. An adjusting component that extends into the oil storage chamber is movably provided on the housing. The adjusting member is movable relative to the outer shell to adjust the volume of the oil storage cavity by changing the volume of the portion of it extending into the oil storage cavity. The outer casing also has an oil inlet channel, an oil outlet channel, and an air inlet channel. The oil inlet channel corresponds to the oil inlet and is connected to the oil source through a pipeline. The oil outlet channel corresponds to the fuel injector. The air inlet channel corresponds to the air inlet and is connected to the air source through a pipeline. The oil inlet channel and the oil outlet channel are located on both sides of the oil storage chamber, and the oil inlet channel, the oil storage chamber and the oil outlet channel are coaxially arranged. The oil inlet channel is provided with a stop block and a piston, both of which have radial dimensions smaller than the oil inlet channel. An oil storage gap is formed between the piston and the inner wall of the oil inlet channel. The stop block is located at one end of the piston and close to the inlet of the oil inlet channel. An oil delivery channel that can connect to the oil inlet is formed inside the piston. The stop block can move along the oil inlet channel to abut against the first end of the piston and close the opening of the oil delivery channel at the first end, or abut against one end of the inlet of the oil inlet channel and close the inlet of the oil inlet channel from the inside. The volume of the oil storage gap is greater than the maximum volume of the oil storage cavity; The lubrication control method includes: Adjust the adjusting member on the housing of the metering device according to the lubricating oil demand to change the volume of the part of the adjusting member that extends into the oil storage chamber inside the housing, and adjust the volume of the oil storage chamber to a predetermined size. The air inlet of the oil storage chamber is closed and the oil inlet is opened, and lubricating oil is introduced into the oil storage chamber through the oil inlet via an oil source; Start the air source connected to the air inlet to maintain a preset air pressure at the air inlet; Open the air inlet and close the oil inlet, so that the lubricating oil in the oil storage chamber is sprayed out from the oil spray nozzle of the oil storage chamber under the action of the gas output from the air source; The process of introducing lubricating oil into the oil storage chamber through the oil inlet from the oil source includes the following sub-steps: Start the oil source and input lubricating oil into the oil inlet channel inside the housing that communicates with the oil storage chamber. This causes the stop block in the oil inlet channel to move under the push of the lubricating oil and abut against the first end of the piston in the oil inlet channel. The piston is then pushed to move along the oil inlet channel until its second end abuts against the end face of the oil inlet channel. The oil supply channel inside the piston is aligned with the oil inlet on the end face of the oil inlet channel at the second end of the piston, and the stop block closes the oil supply channel corresponding to the channel inlet at the first end of the piston. The lubricating oil input from the oil source enters the oil storage gap between the piston and the inner wall of the oil supply channel. When the oil supply is stopped, the stop block moves in the opposite direction under the pressure of the lubricating oil in the oil storage gap until it abuts against the inlet end of the oil inlet channel, opening the channel of the oil delivery channel and closing the inlet of the oil inlet channel; Under the pressure difference of the local vacuum, the lubricating oil in the oil storage gap enters the oil storage chamber through the oil delivery channel and the oil inlet.

2. The lubrication control method according to claim 1, characterized in that, A pressure sensor is installed in the oil storage chamber to monitor the pressure inside the oil storage chamber in order to determine the amount of lubricating oil in the oil storage chamber.

3. The lubrication control method according to claim 1, characterized in that, The oil storage chamber is provided with an opening and closing component located between the oil inlet and the air inlet. The opening and closing component is used to close the air inlet when oil is being introduced and to close the oil inlet when oil is being injected.

4. The lubrication control method according to claim 3, characterized in that, The oil inlet and the air inlet are located on the same side wall of the oil storage chamber. The opening and closing assembly includes a rotary drive component disposed between the oil inlet and the air inlet, and a baffle connected to the rotary drive component. The baffle is fitted against the wall of the oil storage chamber, and the baffle can rotatably block the oil inlet or the air inlet under the drive of the rotary drive.

5. The lubrication control method according to claim 1, characterized in that, A ball bearing is provided at the fuel injector, and a fuel injection gap is formed between the ball bearing and the edge of the fuel injector.

6. The lubrication control method according to claim 1, characterized in that, An elastic element is fitted onto the piston. One end of the elastic element abuts against one end of the oil inlet channel corresponding to the oil inlet, and the other end abuts against a limiting platform formed on the outer wall of the piston.

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