Movable oil-gas lubrication station

Abstract

The invention provides a movable oil-gas lubrication station which comprises an oil storage tank fixedly mounted on the inner side of a shell, and rolling wheels are arranged at the bottom end of the shell; the liquid inlet end of the pneumatic pump is communicated with the bottom end of the inner side of the oil storage tank, the liquid outlet end of the pneumatic pump is communicated with the liquid inlet end of the stacked progressive increase distributor, and a plurality of liquid outlet ends of the distributor are respectively communicated with one liquid inlet end of the oil-gas mixing block; the gas inlet pipeline communicates with the gas inlet end of the pneumatic pump and the gas inlet end of the oil-gas mixing block; the liquid outlet end of the distributor is communicated with the liquid inlet end of the oil-gas mixing block through a connecting pipe, and the connecting pipe is communicated with the one-way valve. The device has the beneficial effects that after the roller is assembled, the station is used for supplementing oil to fully guarantee the lubricating effect, meanwhile, whether air leakage exists in other places except the exhaust hole or not is checked, the installation effect of a sealing ring is determined, the service life of a bearing is prolonged, and problems existing in the sealing installation process of a bearing seat are found in time.

Description

Technical Field

[0001] This invention belongs to the field of oil and gas lubrication technology, and in particular relates to a mobile oil and gas lubrication station. Background Technology

[0002] With the increasing application of oil and gas lubrication in the metallurgical industry, it can extend the service life of friction pairs in harsh environments such as high temperature, heavy load, high speed, and the intrusion of cooling water and dirt on rolling lines.

[0003] However, due to limitations imposed by various operating conditions, especially when assembling new bearings offline, the rolling mills for section steel and strip steel typically employ traditional oil-air main / satellite stations or fixed pneumatic lubrication stations with their oil-air lubrication systems. Bearing housings, after being disassembled, ground, and assembled between the rolls, cannot be pre-lubricated due to limitations. New bearing housings can only be lubricated after being installed on the rolling mill and connected to the oil-air system. This not only compromises lubrication effectiveness but also makes it impossible to verify the proper functioning of the newly installed seals. If the seals are improperly installed or damaged, lubrication will be inadequate or water may enter the rolls. Seal installation relies solely on personnel experience and visual inspection. Therefore, a mobile oil-air lubrication station is urgently needed. Summary of the Invention

[0004] In view of this, the present invention aims to provide a mobile oil and gas lubrication station in order to solve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] A portable oil-gas lubrication station, comprising:

[0007] An oil storage tank is fixedly installed inside the outer casing, and the bottom of the outer casing is provided with rollers;

[0008] A pneumatic pump, wherein the liquid inlet of the pneumatic pump is connected to the bottom end of the inner side of the oil storage tank, the liquid outlet of the pneumatic pump is connected to the liquid inlet of the stacked dispensing distributor, and the multiple liquid outlets of the distributor are respectively connected to one liquid inlet of the oil-gas mixing block.

[0009] The air intake pipe is connected to the air intake end of the pneumatic pump and the air intake end of the oil-gas mixture block, respectively.

[0010] A one-way valve is connected to the liquid inlet of the oil-gas mixing block via a connecting pipe at the liquid outlet of the distributor.

[0011] Furthermore, the outer casing is equipped with a vertically arranged level gauge, with both ends of the level gauge connected to the inner side of the oil storage tank.

[0012] The bottom of the oil storage tank is provided with a drain pipe, the upper end of which is connected to the oil storage tank, and the lower end of which is installed through the outer shell. A first manual valve is connected to the drain pipe.

[0013] The outer casing is equipped with a temperature gauge, and the sensing end of the temperature gauge is located at the bottom of the oil tank;

[0014] The oil tank has an oil inlet pipe at the top, a filter at the bottom of the oil inlet pipe, and a cover at the top of the oil inlet pipe, which is detachably connected to the oil inlet pipe.

[0015] Furthermore, the outlet end of the pneumatic pump is connected to a first pressure gauge;

[0016] The air inlet of the mixing block is connected to a second pressure gauge.

[0017] Furthermore, a second manual valve is connected to the air intake pipe;

[0018] A two-position two-way solenoid valve is connected to the air intake pipe. The two-position two-way solenoid valve is located between the second manual valve and the air intake end of the mixing block.

[0019] The second manual valve is connected to the two-position two-way solenoid valve via an air filter pressure regulating valve.

[0020] The outlet of the two-position two-way solenoid valve is connected to the inlet of the mixing block and the inlet of the pneumatic pump respectively through a differential pressure switch.

[0021] The air intake pipe is connected to the air intake end of the pneumatic pump via an electromagnetic reversing valve.

[0022] Furthermore, the oil-gas mixing block has an air inlet as an air inlet end, one end of which is connected to an air inlet pipe.

[0023] The oil-gas mixing block has multiple discharge holes that communicate with the air inlet and multiple liquid inlet holes that serve as liquid inlet ends. The liquid inlet holes are set parallel to the discharge holes. One end of the liquid inlet hole is connected to the connecting pipe, and the other end is connected to the side wall of the discharge hole near the air inlet hole through an inclined hole.

[0024] Each discharge port has a corresponding liquid inlet port;

[0025] The dispenser is a stacked progressive dispenser, and each outlet end of the stacked progressive dispenser is connected to an inlet hole through a connecting pipe.

[0026] Furthermore, a support plate is provided at the lower end of the outer shell. The support plate is movably connected to the outer shell along the height direction. A cylinder is used to drive the support plate to move. An anti-slip structure is provided on the lower end surface of the support plate. The air inlet end of the cylinder is connected to the air inlet pipe through a solenoid valve.

[0027] When the cylinder is in the extended state, the support plate is lower than the roller.

[0028] Furthermore, guide plates are fixed on both sides of the upper end of the support plate, and vertically arranged strip holes are opened on the guide plates. Guide posts are fixed on the outer shell, and the guide posts are located inside the strip holes. The distance between the two guide plates matches the width of the outer shell, and the outer shell is located between the two guide plates.

[0029] Furthermore, the outer casing is provided with an inverted U-shaped handle;

[0030] The vertical rod of the inverted U-shaped handle is movably connected to the inner side of the rotating tube. The rotating tube is rotatably connected to the mounting plate on the outer shell through a rotating shaft. A first positioning tube is fixedly arranged horizontally on the guide plate. A second positioning tube corresponding to the horizontal state of the rotating tube is fixedly arranged on the outer shell. The second positioning tube is horizontally arranged.

[0031] When the cylinder is in the extended state, the positions of the first positioning tube and the second positioning tube correspond.

[0032] Furthermore, a vertically arranged third positioning tube is fixed on the outer shell, which is corresponding to the vertically rotating tube, and a baffle is fixed at the lower end of the third positioning tube.

[0033] Furthermore, the number of rollers is four, with two rollers on one side being directional rollers and two rollers on the other side being omnidirectional rollers.

[0034] Compared with the prior art, the mobile oil-gas lubrication station of the present invention has the following advantages:

[0035] The present invention discloses a mobile oil-air lubrication station. After the rollers are assembled, the station is used to replenish oil to ensure sufficient lubrication effect. At the same time, it checks whether there is any air leakage except for the exhaust hole, determines the installation effect of the sealing ring, extends the service life of the bearing, and promptly detects problems in the installation process of the bearing housing seal. Attached Figure Description

[0036] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0037] Figure 1 This is a schematic diagram of the lubrication station oil supply system according to an embodiment of the present invention;

[0038] Figure 2 This is a front view structural diagram of the lubrication station in its moving state according to an embodiment of the present invention;

[0039] Figure 3This is a front view of the lubrication station in a fixed state according to an embodiment of the present invention;

[0040] Figure 4 This is a first-view three-dimensional structural diagram of the support plate in its installation state according to an embodiment of the present invention;

[0041] Figure 5 This is a second-view three-dimensional structural diagram of the support plate in its installation state according to an embodiment of the present invention;

[0042] Figure 6 As described in the embodiments of the present invention Figure 5 Schematic diagram of the structure at point A in the middle;

[0043] Figure 7 This is a schematic diagram of the three-dimensional structure of the support plate according to an embodiment of the present invention;

[0044] Figure 8 This is a schematic cross-sectional view of the oil-gas mixture block according to an embodiment of the present invention.

[0045] Explanation of reference numerals in the attached figures:

[0046] 1. Oil reservoir; 2. Pneumatic pump; 3. Oil-air mixing block; 4. Distributor; 5. Second pressure gauge; 6. Second manual valve; 7. Air filter pressure regulating valve; 8. Two-position two-way solenoid valve; 9. Differential pressure switch; 10. Housing; 11. Inverted U-shaped handle; 12. Support plate; 13. Rotary tube; 14. Cylinder; 15. Air inlet pipe; 101. Level gauge; 102. Drain pipe; 103. Oil inlet pipe; 104. Static pressure submersible water level gauge; 105. Temperature gauge Table; 201, First pressure gauge; 202, Solenoid directional valve; 203, Silencer; 301, Air inlet; 302, Discharge outlet; 303, Inclined hole; 304, Liquid inlet; 401, Proximity switch; 1001, Roller; 1002, Guide post; 1003, Third positioning tube; 1004, Second positioning tube; 1005, Mounting plate; 1201, Guide plate; 1202, Strip hole; 1203, First positioning tube; 1301, Rotating shaft. Detailed Implementation

[0047] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0048] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0049] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0051] like Figures 1 to 8 As shown, a portable oil-gas lubrication station includes: an oil storage tank 1, which is fixedly installed inside a housing 10, with rollers 1001 at the bottom of the housing 10; a pneumatic pump, the liquid inlet of which is connected to the bottom of the inner side of the oil storage tank 1, and the liquid outlet of which is connected to the liquid inlet of a stacked distributor 4, with multiple liquid outlets of the distributor 4 respectively connected to one liquid inlet of an oil-gas mixing block 3; an air inlet pipe 15, which is connected to both the air inlet of the pneumatic pump and the air inlet of the oil-gas mixing block 3; and a one-way valve, the liquid outlet of the distributor 4 being connected to the liquid inlet of the oil-gas mixing block 3 via a connecting pipe, with a one-way valve connected to the connecting pipe.

[0052] The outer casing 10 is equipped with a vertically mounted liquid level gauge 101, with both ends of the liquid level gauge 101 connected to the inner side of the oil storage tank 1. The bottom of the oil storage tank 1 is equipped with a drain pipe 102, the upper end of which is connected to the oil storage tank 1, and the lower end of which passes through the outer casing 10. A first manual valve is connected to the drain pipe 102. The outer casing 10 is equipped with a thermometer 105, with the detection end of the thermometer 105 located at the bottom of the oil storage tank 1. An oil inlet pipe 103 is opened at the upper end of the oil storage tank 1, the lower end of which is connected to the inner side of the oil storage tank 1. A filter is correspondingly provided at the lower end of the oil inlet pipe 103, and a top cover is provided at the upper end of the oil inlet pipe 103. The top cover is detachably connected to the oil inlet pipe 103. The level gauge 101 is used to easily view the oil level in the oil storage tank 1. The level gauge 101 adopts, but is not limited to, the existing side-mounted magnetic float level gauge 101. The drain pipe 102 facilitates the discharge of lubricating oil from the oil storage tank 1. The thermometer 105 facilitates the viewing of the temperature of the lubricating oil in the oil storage tank 1. The oil inlet pipe 103 is used to add lubricating oil to the oil storage tank 1. The filter can prevent impurities from entering the oil storage tank 1. In some other embodiments, the oil storage tank 1 is also equipped with a static pressure submersible water level gauge 104. The static pressure submersible water level gauge 104 is electrically connected to the PLC controller. The PLC controller is electrically connected to the buzzer. When the liquid level in the oil storage tank 1 is too high or too low, the static pressure submersible water level gauge 104 sends a signal to the PLC controller. The PLC controller controls the buzzer to emit an alarm signal. The power module is used to provide power to the PLC controller.

[0053] The pneumatic pump outlet is connected to a first pressure gauge 201, which is used to check the liquid pressure at the pneumatic pump outlet. The first pressure gauge 201 is located on the outside of the housing. The mixing block inlet is connected to a second pressure gauge 5, which is used to check the gas pressure at the mixing block inlet. The second pressure gauge 5 is located on the outside of the housing.

[0054] A second manual valve 6 is connected to the air intake pipe 15 to control the opening and closing of the air intake pipe 15;

[0055] A two-position two-way solenoid valve 8 is connected to the air intake pipe 15. The two-position two-way solenoid valve 8 is located between the second manual valve 6 and the air intake end of the mixing block. The two-position two-way solenoid valve 8 is electrically connected to the PLC controller. The PLC controller is electrically connected to the button. The button is used to control the state of the two-position two-way solenoid valve 8 and thus control the opening and closing of the air intake pipe 15.

[0056] The second manual valve 6 is connected to the two-position two-way solenoid valve 8 via the air filter pressure regulating valve 7; the air filter pressure regulating valve 7 serves to filter and regulate pressure.

[0057] The outlet of the two-position two-way solenoid valve 8 is connected to the inlet of the mixing block and the inlet of the pneumatic pump through the differential pressure switch 9. The differential pressure switch 9 is used to detect the air pressure after the air pressure regulating valve. It is generally a switch signal. When the air pressure is lower than the set pressure, the switch signal is output to the PLC controller to trigger an alarm, reminding the operator to check and prevent the low air pressure from affecting the operation of the pneumatic pump and cylinder.

[0058] The air inlet pipe is connected to the air inlet of the pneumatic pump via a solenoid directional valve 202. The pneumatic pump is, but is not limited to, an existing liquid pneumatic booster pump, model SUP-MSUP_G. The solenoid directional valve 202 is, but is not limited to, an existing two-position four-way solenoid valve. The P port of the two-position four-way solenoid valve is connected to the air inlet pipe 15, the T port is connected to the silencer, the A port is connected to the air inlet of the pneumatic pump, and the B port is connected to the air outlet of the pneumatic pump. The two-position four-way solenoid valve is electrically connected to the PLC controller. The PLC controller controls the operation of the pneumatic pump by controlling the state switching of the two-position four-way solenoid valve, and adjusts the liquid output of the pneumatic pump by controlling the state switching frequency.

[0059] The oil-gas mixing block 3 has an air inlet 301 as the air inlet end, one end of which is connected to the air inlet pipe 15. The oil-gas mixing block 3 has multiple discharge holes 302 connected to the air inlet 301 and multiple liquid inlet holes 304 as the liquid inlet end. The liquid inlet holes 304 are arranged parallel to the discharge holes 302. One end of the liquid inlet hole 304 is connected to the connecting pipe, and the other end is connected to the side wall of the discharge hole 302 near the air inlet 301 through the inclined hole 303. Each discharge hole 302 has a corresponding liquid inlet hole 304. Lubricating oil enters the discharge hole 302 through the liquid inlet hole 304 and the inclined hole 303, and forms an oil-gas mixture under the impact of high-pressure gas.

[0060] Distributor 4 is a stacked progressive distributor 4. Each outlet end of the stacked progressive distributor 4 is connected to an inlet hole 304 through a connecting pipe. The stacked progressive distributor 4 is equipped with a proximity switch 401, which is electrically connected to the PLC controller and is used to observe the working status of the stacked progressive distributor 4.

[0061] A support plate 12 is provided at the lower end of the outer casing. The support plate 12 is movably connected to the outer casing along the height direction. The cylinder 14 is used to drive the support plate 12 to move. The lower end surface of the support plate 12 is provided with an anti-slip structure. The anti-slip structure can be an anti-slip texture or a rough rubber pad to increase friction. The air inlet end of the cylinder 14 is connected to the air inlet pipe through a solenoid valve. When the cylinder 14 is in the extended state, the support plate 12 is lower than the roller 1001.

[0062] The cylinder 14 is, but is not limited to, the existing double-acting cylinder 14. The solenoid valve is electrically connected to the PLC controller to control the state of the cylinder 14.

[0063] Since there may be lubricating oil leakage at the rolling mill repair site, and the pneumatic pump will vibrate during use, the self-locking function of the roller 1001 alone may still slip and affect the safety of use. When the oil-gas lubrication station moves to the designated position, the output shaft of the cylinder 14 extends, the support plate 12 moves downward, and after the support plate 12 contacts the ground, it supports the oil-gas lubrication station to move upward. At this time, the support plate 12 plays the role of increasing the contact area to prevent slippage.

[0064] Guide plates 1201 are fixedly mounted on both sides of the upper end of the support plate 12. Vertically arranged strip holes 1202 are opened on the guide plates 1201. Guide posts 1002 are fixedly mounted on the outer shell, located inside the strip holes 1202. The spacing between the two guide plates 1201 matches the width of the outer shell 10. The outer shell 10 is located between the two guide plates 1201. The guide plates 1201 play a guiding role during the movement of the support plate 12. An inverted U-shaped handle 11 is provided on the outer shell 10; the handle facilitates movement and lubrication. The vertical rod of the inverted U-shaped handle 11 is movably connected to the inner side of the rotating tube 13. The rotating tube 13 is rotatably connected to the mounting plate 1005 on the outer casing 10 via a rotating shaft 1301. A horizontally positioned first positioning tube 1203 is fixed on the guide plate 1201, and a second positioning tube 1004 corresponding to the horizontal state of the rotating tube 13 is fixed on the outer casing 10. The second positioning tube 1004 is horizontally positioned. When the cylinder 14 is in the extended state, the positions of the first positioning tube 1203 and the second positioning tube 1004 correspond. A vertically positioned third positioning tube 1003 is fixed on the outer casing 10, corresponding to the vertical rotating tube 13. A baffle is fixed at the lower end of the third positioning tube 1003, which limits the vertical U-shaped handle. There are four rollers 1001, two of which on one side are directional rollers 1001, and the other two on the other side are omnidirectional rollers 1001.

[0065] When the lubrication station is in a moving state, the output shaft of cylinder 14 retracts, the vertical rod of the U-shaped handle is inserted into the inner side of the third positioning tube 1003, and the baffle limits its movement.

[0066] When the lubrication station is in a fixed state, the output shaft of cylinder 14 extends, moves the U-shaped handle upward, and the vertical rod disengages from the third positioning tube 1003. The handle is rotated along the rotating shaft 1301. When the vertical rod aligns with the second positioning tube 1004 and the first positioning tube 1203, the vertical rod passes through the second positioning tube 1004 and the first positioning tube 1203 in one go, which plays a limiting role on the support plate 12, improves the stability during use, and prevents the support plate 12 from losing its support function due to sudden air interruption.

[0067] Using a pneumatic pump as the oil supply power source eliminates the need for additional power, allowing lubrication operations to be performed even in emergency maintenance locations without power.

[0068] Work process:

[0069] The intake pipe 15 is connected to the outlet end of the high-pressure air compressor. High-pressure air enters the intake end of the pneumatic pump and the intake end of the oil-gas mixing block 3 through the intake pipe 15. The pneumatic pump drives the lubricating oil to enter the liquid inlet end of the oil-gas mixing block 3. The lubricating oil and high-pressure air are mixed in the oil-gas mixing block 3 to form an oil-gas mixture. The oil-gas mixture is discharged through the discharge hole 302 of the oil-gas mixing block 3 and transported to each bearing seat through the oil supply pipeline.

[0070] After the rolls are assembled, the movable oil-air lubrication station is moved to the assembly position to replenish the bearing housing with oil, ensuring sufficient lubrication. At the same time, it checks for air leaks except for the vent hole, confirms the installation effect of the sealing ring, extends the service life of the bearing, and promptly identifies any problems in the installation of the bearing housing seal.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A portable oil-gas lubrication station, characterized in that, include: An oil storage tank (1) is fixedly installed on the inner side of the outer shell (10), and a roller (1001) is provided at the bottom of the outer shell (10); A pneumatic pump, the liquid inlet of which is connected to the bottom of the inner side of the oil storage tank (1), the liquid outlet of which is connected to the liquid inlet of the stacked dispensing distributor (4), and the multiple liquid outlets of the distributor (4) are respectively connected to one liquid inlet of the oil-gas mixing block (3). The air intake pipe (15) is connected to the air intake end of the pneumatic pump and the air intake end of the oil-gas mixing block (3), respectively. The liquid outlet of the distributor (4) is connected to the liquid inlet of the oil-gas mixing block (3) via a connecting pipe, and the connecting pipe is connected to the one-way valve.

2. The mobile oil-gas lubrication station according to claim 1, characterized in that: The outer casing (10) is provided with a vertically arranged liquid level gauge (101), and the two ends of the liquid level gauge (101) are respectively connected to the inner side of the oil storage tank (1); The bottom of the oil storage tank (1) is provided with a drain pipe (102), the upper end of the drain pipe (102) is connected to the oil storage tank (1), the lower end of the drain pipe (102) is installed through the outer shell (10), and a first manual valve is connected to the drain pipe (102); A temperature gauge (105) is provided on the outer casing (10), and the detection end of the temperature gauge (105) is located at the bottom of the oil tank (1); The oil storage tank (1) has an oil inlet pipe (103) at the upper end, a filter at the lower end of the oil inlet pipe (103), and an upper cover at the upper end of the oil inlet pipe (103), which is detachably connected to the oil inlet pipe (103).

3. The mobile oil-gas lubrication station according to claim 1, characterized in that: The pneumatic pump outlet is connected to a first pressure gauge (201); The air inlet of the mixing block is connected to a second pressure gauge (5).

4. The portable oil-gas lubrication station according to claim 1, characterized in that: The intake pipe (15) is connected to a second manual valve (6); The intake pipe (15) is connected to a two-position two-way solenoid valve (8), which is located between the second manual valve (6) and the intake end of the mixing block. The second manual valve (6) is connected to the two-position two-way solenoid valve (8) through the air filter pressure regulating valve (7); The outlet of the two-position two-way solenoid valve (8) is connected to the inlet of the mixing block and the inlet of the pneumatic pump (2) respectively through the differential pressure switch (9); The air intake pipe is connected to the air intake end of the pneumatic pump (2) through an electromagnetic reversing valve (202).

5. A mobile oil-gas lubrication station according to claim 1, characterized in that: The oil-gas mixing block (3) has an air inlet (301) as the air inlet end, and one end of the air inlet (301) is connected to the air inlet pipe (15). The oil-gas mixing block (3) has multiple discharge holes (302) that communicate with the air inlet (301). The oil-gas mixing block (3) has multiple liquid inlet holes (304) as liquid inlet ends. The liquid inlet holes (304) are arranged parallel to the discharge holes (302). One end of the liquid inlet hole (304) is connected to the connecting pipe, and the other end is connected to the side wall of the discharge hole (302) near the air inlet (301) through the inclined hole (303). Each discharge port (302) has a corresponding liquid inlet port (304); The distributor (4) is a superimposed progressive distributor (4), and each liquid outlet of the superimposed progressive distributor (4) is connected to a liquid inlet (304) through a connecting pipe.

6. A mobile oil-gas lubrication station according to claim 1, characterized in that: The lower end of the outer shell (10) is provided with a support plate (12), which is movably connected to the outer shell (10) along the height direction. The cylinder (14) is used to drive the support plate (12) to move. The lower end surface of the support plate (12) is provided with an anti-slip structure. The air inlet end of the cylinder (14) is connected to the air inlet pipe through a solenoid valve. When the cylinder (14) is in the extended state, the support plate (12) is lower than the roller (1001).

7. A portable oil-gas lubrication station according to claim 6, characterized in that: The upper end of the support plate (12) is fixed with guide plates (1201) on both sides. The guide plates (1201) have vertically arranged strip holes (1202). The outer shell (10) is fixed with guide posts (1002). The guide posts (1002) are located inside the strip holes (1202). The distance between the two guide plates (1201) matches the width of the outer shell (10). The outer shell (10) is located between the two guide plates (1201).

8. A portable oil-gas lubrication station according to claim 7, characterized in that: The outer casing (10) is provided with an inverted U-shaped handle (11); The vertical rod of the inverted U-shaped handle (11) is movably connected to the inner side of the rotating tube (13). The rotating tube (13) is rotatably connected to the mounting plate (1005) on the outer shell (10) via the rotating shaft (1301). A first positioning tube (1203) is fixedly arranged horizontally on the guide plate (1201). A second positioning tube (1004) corresponding to the horizontal state of the rotating tube (13) is fixedly arranged on the outer shell (10). The second positioning tube (1004) is arranged horizontally. When the cylinder (14) is in the extended state, the positions of the first positioning tube (1203) and the second positioning tube (1004) correspond.

9. A portable oil-gas lubrication station according to claim 8, characterized in that: A vertically arranged third positioning tube (1003) is fixed on the outer shell (10). The third positioning tube (1003) is correspondingly arranged with the vertical rotating tube (13). A baffle is fixed at the lower end of the third positioning tube (1003).

10. A portable oil-gas lubrication station according to claim 1, characterized in that: The number of rollers (1001) is four, of which two rollers (1001) on one side are directional rollers (1001), and the two rollers (1001) on the other side are omnidirectional rollers (1001).

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