Quantitative filling device for lubricating oil

Abstract

The utility model discloses a quantitative filling device for lubricating oil, including storage tank and stirring rod, the oil filler pipe is fixedly connected with the filter screen in the oil filler pipe inner side close to the one side of storage tank, the oil filler pipe bottom fixedly connected with the temporary receiving frame, the temporary receiving frame bottom center fixedly connected with electric push rod, the electric push rod output fixedly connected with the receiving cylinder, the receiving cylinder is close to the oil filler pipe inner wall place and evenly is equipped with the defoaming hole, the receiving cylinder upper side evenly fixedly connected with the sealing ring, the utility model discloses the temporary receiving frame is set up to receive lubricating oil in the storage tank bottom side, then utilizes electric push rod extension contraction to make the bubble in lubricating oil eliminate, then hydraulic push rod contracts and makes piston go up, and the lubricating oil after defoaming is extracted and goes up according to demand, reaches the effect of quantitative filling, and the quantitative oil body can be discharged from the oil hole, thereby reducing the dust into the transparent oil filler cylinder, and the bubble problem in lubricating oil is solved.

Description

Technical Field

[0001] This utility model relates to the field of lubricating oil technology, and more specifically to a quantitative filling device for lubricating oil. Background Technology

[0002] Lubricating oil is an industrial product used in mechanical equipment to reduce friction, protect parts, or extend equipment life. Common lubricating oils are mainly composed of base oils and additives, which are then mixed, bottled, and sealed for later use.

[0003] According to Chinese Patent Publication No. CN222948112U, "Quantitative Filling Device for Lubricating Oil," the device mainly includes a fixed plate, a mixing tank, and a base. A fixed ring is fixedly connected to one side of the outer wall of the fixed plate, and a cylinder is fixedly connected to the inner wall of the fixed ring. A push plate is fixedly connected to the output end of the cylinder, and a pressure plate is fixedly connected to the bottom of the push plate. A sleeve is slidably connected to the outer wall of the pressure plate, and a double-ended tube is fixedly connected to the bottom of the sleeve. A hollow block is fixedly connected to the bottom of the double-ended tube. A feeding pipe is fixedly connected to the bottom of the mixing tank, and one end of the feeding pipe is fixedly connected to the inside of the hollow block. A second cylinder is rotatably connected to the bottom of the mixing tank, and a rotating plate is fixedly connected to the output end of the second cylinder. A connecting block is fixedly connected to the inside of the rotating plate, and a hollow column is rotatably connected to the inside of the connecting block. The outer wall of the hollow column is rotatably connected to the inner wall of the hollow block. A conveying mechanism is provided on one side of the outer wall of the hollow block. The conveying mechanism is used to transport the lubricating oil to the required device.

[0004] The aforementioned patent uses a starting cylinder to move the pressure plate upward, causing lubricating oil to be drawn into the sleeve. Then, a starting cylinder rotates the hollow column, which has three circular holes on its surface. These holes are aligned with the top and front of the column, achieving a quantitative filling effect for lubricating oil. This solves the problem of the manual filling mechanism affecting the filling accuracy in the prior art and improves the accuracy of the lubricating oil filling device.

[0005] However, the method of using a cylinder to move the pressure plate upward to allow oil to enter the sleeve can cause dust to enter the oil filling structure through the gap between the pressure plate and the sleeve, resulting in a decrease in the quality of the oil during quantitative filling. Furthermore, the lubricating oil in the mixing tank will generate air bubbles under the stirring mechanism, which will enter the sleeve along with the lubricating oil during filling, affecting the accuracy of quantitative filling. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a quantitative filling device for lubricating oil, which improves the accuracy of weighing and reduces the amount of air bubbles entering the sleeve, thus minimizing the impact on the precision of quantitative filling.

[0007] This utility model provides a quantitative filling device for lubricating oil, comprising a storage tank and a stirring rod. An oil injection pipe is fixedly connected to the bottom side of the storage tank. A filter screen is fixedly connected to the inside of the oil injection pipe near the storage tank. A temporary receiving frame is fixedly connected to the bottom end of the oil injection pipe. An electric push rod is fixedly connected to the center of the bottom end of the temporary receiving frame. A receiving cylinder is fixedly connected to the output end of the electric push rod. Defoaming holes are evenly distributed on the inner wall of the receiving cylinder near the oil injection pipe. Sealing rings are evenly fixedly connected to the upper side of the receiving cylinder. The temporary receiving frame… An air pump is fixedly connected to one side, and an n-shaped pipe is fixedly connected to the input end of the air pump. A connecting pipe is fixedly connected to one end of the n-shaped pipe, and one end of the connecting pipe is fixedly connected to one side of the upper end of the temporary support frame. An oil inlet pipe is fixedly connected to one side of the temporary support frame, and a transparent oil injection cylinder is fixedly connected to one end of the oil inlet pipe. A hydraulic push rod is fixedly connected to the upper end of the transparent oil injection cylinder, and a piston is fixedly connected to the output end of the hydraulic push rod. An oil outlet hole is opened at the bottom end of the transparent oil injection cylinder, and a valve is rotatably connected to the transparent oil injection cylinder on the side of the oil outlet hole.

[0008] Optionally, a fixed frame is fixedly connected to the bottom of the transparent oil filling cylinder, a spring rod is inserted into one side of the fixed frame, a limit block is fixedly connected to one end of the spring rod, and a plug is fixedly connected to the side of the spring rod away from the limit block. The plug corresponds to the oil outlet. By setting the spring rod and the plug, the oil outlet can be sealed in time, reducing dust from corroding the transparent oil filling cylinder from the bottom.

[0009] Optionally, three annular dustproof nets are fixedly connected to the upper end of the transparent oil injection cylinder. The aperture of the three annular dustproof nets decreases sequentially from the outside to the inside. By setting three annular dustproof nets with gradually decreasing mesh size, dust is reduced from entering the transparent oil injection cylinder from the air groove.

[0010] Optionally, an air groove is provided on one side of the upper end of the transparent oil injection cylinder. A rotating plate is rotatably connected to the air groove through a first rotating shaft. A torsion spring is sleeved on the first rotating shaft. The two ends of the torsion spring are respectively fixedly connected to the air groove and the rotating plate. The air groove is located inside the annular dustproof net. By setting the air groove, gas can be discharged and drawn in when the piston moves up and down.

[0011] Optionally, an infrared sensor is fixedly connected to one side of the connecting pipe. The end of the infrared sensor is located inside the connecting pipe. The infrared sensor is connected in series with the air pump via a wire. By setting the infrared sensor, when the air pump is drawing air, it can promptly alert the user if some lubricating oil enters the n-type pipe, thereby preventing the lubricating oil from contacting the air pump.

[0012] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: by setting a temporary receiving frame on the bottom side of the storage tank to receive the lubricating oil, and then using the extension and contraction of the electric push rod to eliminate the air bubbles in the lubricating oil, the hydraulic push rod contracts to move the piston upward, drawing out the defoamed lubricating oil and moving it upward as needed, achieving the effect of quantitative filling, and being able to discharge a quantitative amount of oil from the oil outlet, thereby reducing dust entering the transparent oil filling cylinder and solving the problem of air bubbles in the lubricating oil. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 This is a front cross-sectional view of a preferred embodiment of the present invention for a quantitative filling device for lubricating oil;

[0015] Figure 2 This is a side cross-sectional view of a preferred embodiment of the present invention for a quantitative filling device for lubricating oil;

[0016] Figure 3 This is an enlarged structural schematic diagram of point A of a preferred embodiment of the quantitative filling device for lubricating oil of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the receiving cylinder of a quantitative filling device for lubricating oil according to a preferred embodiment of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1. Storage tank; 2. Stirring rod; 3. Oil injection pipe; 4. Temporary receiving frame; 5. Electric push rod; 6. Receiving cylinder; 7. Sealing ring; 8. Defoaming hole; 9. Air pump; 10. Connecting pipe; 11. N-type pipe; 12. Oil inlet pipe; 13. Transparent oil injection cylinder; 14. Hydraulic push rod; 15. Piston; 16. Oil outlet; 17. Valve; 18. Fixing frame; 19. Spring rod; 20. Plug; 21. Filter screen; 22. Infrared sensor; 23. Annular dustproof net; 24. Air groove; 25. First rotating shaft; 26. Rotating plate. Detailed Implementation

[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0020] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0021] Please refer to the following: Figure 1-4 The illustrated metering filling device for lubricating oil includes a storage tank 1 and a stirring rod 2. The storage tank 1, in conjunction with the motor-driven stirring rod 2, mixes the oil. An oil injection pipe 3 is fixedly connected to the bottom of the storage tank 1. A filter screen 21 is fixedly connected inside the oil injection pipe 3 near the storage tank 1. The filter screen 21 filters the oil, and air bubbles are further broken into smaller bubbles as they pass through it. A temporary receiving frame 4 is fixedly connected to the bottom end of the oil injection pipe 3. The temporary receiving frame 4 is used to receive the defoamed lubricating oil. An electric push rod 5 is fixedly connected to the center of the bottom end of the temporary receiving frame 4. The electric push rod 5 reciprocates by extending and retracting, which can change the position of the defoaming holes 8. When the defoaming holes 8 are partially located on the bottom side of the oil injection pipe 3, they can shear the air bubbles by contacting the inner wall of the oil injection pipe 3, thereby reducing the impact of air bubbles on quantitative filling. A receiving cylinder 6 is fixedly connected to the output end of the electric push rod 5. The receiving cylinder 6 has defoaming holes 8 evenly distributed near the inner wall of the oil injection pipe 3. A sealing ring 7 is evenly fixedly connected to the upper side of the receiving cylinder 6. An air pump 9 is fixedly connected to one side of the temporary receiving frame 4. The air pump 9 releases the gas in the temporary receiving frame 4 through negative pressure traction. An n-type tube 11 is fixedly connected to the input end. A connecting tube 10 is fixedly connected to one end of the n-type tube 11. One end of the connecting tube 10 is fixedly connected to one side of the upper end of the temporary receiving frame 4. An oil inlet pipe 12 is fixedly connected to one side of the temporary receiving frame 4. An electric control valve is installed on one side of the oil inlet pipe 12. The electric control valve controls the valve plate to rotate through a drive motor to close the oil inlet pipe 12. The valve plate and the oil inlet pipe 12 are parallel to each other to achieve passage. A transparent oil injection cylinder 13 is fixedly connected to one end of the oil inlet pipe 12 (the outer surface of the transparent oil injection cylinder 13 can be set with scale lines, and the bottom end of the piston 15 is in complete contact with the transparent oil injection cylinder 13). 3. On the inner bottom side (the 0 mark is located above the piston 15), a hydraulic push rod 14 is fixedly connected to the upper end of the transparent oil injection cylinder 13. The output end of the hydraulic push rod 14 is fixedly connected to the piston 15. An oil outlet hole 16 is opened at the bottom end of the transparent oil injection cylinder 13. A valve 17 is rotatably connected to the transparent oil injection cylinder 13 on one side of the oil outlet hole 16. One end of the rotating rod at the center of the valve 17 is fixedly connected to a drive motor. The rotating rod is rotated by the drive motor. When the valve 17 is perpendicular to the piston 15, the transparent oil injection cylinder 13 and the oil outlet hole 16 form a passage. At this time, the lubricating oil at the bottom side of the piston 15 falls down.

[0022] The transparent oil filling cylinder 13 is fixedly connected to a fixed frame 18 at its bottom end. A spring rod 19 is inserted into one side of the fixed frame 18. A limit block is fixedly connected to one end of the spring rod 19. A plug 20 is fixedly connected to the side of the spring rod 19 away from the limit block. The plug 20 corresponds to the oil outlet 16. By setting the spring rod 19, the oil outlet 16 can be quickly sealed when there is no obstruction on the bottom side of the oil outlet 16, thereby reducing the direct contact between the oil outlet 16 and the dust in the external environment and improving the filling quality.

[0023] The upper end of the transparent oil filling cylinder 13 is fixedly connected with three annular dustproof nets 23. The diameter of the three annular dustproof nets 23 decreases from the outside to the inside. By setting the three annular dustproof nets 23, the air entering the air groove 24 can be filtered, reducing the intrusion of dust into the transparent oil filling cylinder 13.

[0024] The transparent oil filling cylinder 13 has an air groove 24 on one side of its upper end. A rotating plate 26 is rotatably connected to the air groove 24 through a first rotating shaft 25. A torsion spring is sleeved on the first rotating shaft 25. The two ends of the torsion spring are fixedly connected to the air groove 24 and the rotating plate 26 respectively. The air groove 24 is located inside the annular dustproof net 23. By setting the first rotating shaft 25 and the rotating plate 26, the air on the upper side of the transparent oil filling cylinder 13 can be discharged when the piston 15 moves up or down.

[0025] An infrared sensor 22 is fixedly connected to one side of the connecting pipe 10. The end of the infrared sensor 22 is located inside the connecting pipe 10. By setting the infrared sensor 22, it is possible to monitor whether lubricating oil enters the connecting pipe 10 from the temporary receiving frame 4. When lubricating oil enters the connecting pipe 10, it will send a signal to the air pump 9, causing the air pump 9 to stop running and reducing the wear of the air pump 9.

[0026] Working principle: Storage tank 1 is stirred by the drive motor. When quantitative filling is required, lubricating oil enters the temporary receiving frame 4 from the oil injection pipe 3. During this process, the electric push rod 5 continuously extends and retracts, causing the defoaming hole 8 to be located on the bottom side of the oil injection pipe 3, thus breaking up the bubbles. Then, the air pump 9 and the n-shaped pipe 11 apply negative pressure to remove the gas in the temporary receiving frame 4. The electric control valve on the side of the oil inlet pipe 12 opens, and then the hydraulic push rod 14 retracts, and the piston 15 moves upward. At this time, the lubricating oil is drawn into the transparent oil injection cylinder 13. The amount of lubricating oil in the transparent oil injection cylinder 13 can be observed by the scale. After the set quantitative amount is reached, the electric control valve on the side of the oil inlet pipe 12 can be closed. Then, the spring rod 19 is manually pulled so that the plug 20 no longer blocks the oil outlet 16, and the valve 17 on the bottom side of the transparent oil injection cylinder 13 is opened for filling.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model 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. 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 this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A quantitative filling device for lubricating oil, comprising a storage tank (1) and a stirring rod (2), the bottom side of the storage tank (1) is fixedly connected with an oil filling pipe (3), characterized in that, A filter screen (21) is fixedly connected to the side of the oil injection pipe (3) near the storage tank (1). A temporary receiving frame (4) is fixedly connected to the bottom end of the oil injection pipe (3). An electric push rod (5) is fixedly connected to the center of the bottom end of the temporary receiving frame (4). A receiving cylinder (6) is fixedly connected to the output end of the electric push rod (5). Defoaming holes (8) are evenly opened on the inner wall of the receiving cylinder (6) near the oil injection pipe (3). Sealing rings (7) are evenly fixedly connected to the upper side of the receiving cylinder (6). An air pump (9) is fixedly connected to one side of the temporary receiving frame (4). An n-shaped pipe (11) is fixedly connected to the input end of the air pump (9). One end of the n-shaped tube (11) is fixedly connected to a connecting tube (10). One end of the connecting tube (10) is fixedly connected to one side of the upper end of the temporary receiving frame (4). One side of the temporary receiving frame (4) is fixedly connected to an oil inlet pipe (12). One end of the oil inlet pipe (12) is fixedly connected to a transparent oil injection cylinder (13). The upper end of the transparent oil injection cylinder (13) is fixedly connected to a hydraulic push rod (14). The output end of the hydraulic push rod (14) is fixedly connected to a piston (15). The bottom end of the transparent oil injection cylinder (13) is provided with an oil outlet hole (16). The transparent oil injection cylinder (13) is rotatably connected to a valve (17) on one side of the oil outlet hole (16).

2. The dosing device for lubricating oil according to claim 1, characterized in that, The bottom end of the transparent oil injection cylinder (13) is fixedly connected to a fixed frame (18). A spring rod (19) is inserted into one side of the fixed frame (18). A limit block is fixedly connected to one end of the spring rod (19). A plug (20) is fixedly connected to the side of the spring rod (19) away from the limit block. The plug (20) corresponds to the oil outlet (16).

3. The dosing device for lubricating oil according to claim 2, characterized in that, The upper end of the transparent oil injection cylinder (13) is fixedly connected with three annular dustproof nets (23), and the aperture of the three annular dustproof nets (23) decreases sequentially from the outside to the inside.

4. The dosing device for lubricating oil according to claim 3, characterized in that, An air groove (24) is provided on one side of the upper end of the transparent oil injection cylinder (13). A rotating plate (26) is rotatably connected to the air groove (24) through a first rotating shaft (25). A torsion spring is sleeved on the first rotating shaft (25). The two ends of the torsion spring are fixedly connected to the air groove (24) and the rotating plate (26) respectively. The air groove (24) is located inside the annular dustproof net (23).

5. The dosing device for lubricating oil according to claim 4, characterized in that, An infrared sensor (22) is fixedly connected to one side of the connecting tube (10), and the end of the infrared sensor (22) is located inside the connecting tube (10).

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