Pump-free quantitative supply oil coating and discharging device

Abstract

The utility model relates to the technical field of steel pipe machining, in particular to a pump-free quantitative supply oil coating and discharging device which comprises a first air cylinder, a pressing disc is arranged on one side of the first air cylinder, an oil barrel is arranged on one side of the pressing disc and connected with a connecting flange, a one-way valve is arranged in the connecting flange, and the connecting flange is connected with a second air cylinder. A servo motor is arranged in the second air cylinder, a piston is arranged on one side of the servo motor, and a second one-way valve is arranged on one side of the piston. According to the device, a servo motor and a piston are arranged, grease in a second air cylinder is discharged to lubricate the steel pipes, different quantities of grease are supplied to the steel pipes of different specifications by changing the advancing speed and distance of the servo motor, and the grease can be supplied to the steel pipes of different specifications by changing the advancing speed and distance of the servo motor 15. Quantitative oil supply and coating of the steel pipes of the same specification are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe processing, in particular to a pump-free quantitative oiling and oil discharging device. Background Art

[0002] Steel pipe is a kind of steel with a hollow section, whose length is much larger than its diameter or circumference. According to the cross-sectional shape, it is divided into round, square, rectangular and special-shaped steel pipes; according to the material, it is divided into carbon structural steel pipes, low alloy structural steel pipes, alloy steel pipes and composite steel pipes; according to the purpose, it is divided into steel pipes for pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc.; according to the production process, it is divided into seamless steel pipes and welded steel pipes, among which seamless steel pipes are divided into hot rolling and cold rolling (drawing), and welded steel pipes are divided into straight seam welded steel pipes and spiral seam welded steel pipes. During the production process, steel pipes need to be oiled and rust-proofed.

[0003] When oiling steel pipes, steel pipes of different specifications have different requirements for the amount of oil applied. Too much or too little oil applied will affect the normal storage, processing and use of the steel pipes.

[0004] The existing oiling machines currently have the problem of not being able to supply different amounts of grease according to the specific specifications of the steel pipes, and not being able to quantitatively supply grease to steel pipes of the same specifications, which affects the normal storage, processing and use of the steel pipes.

[0005] Therefore, it is necessary to propose an improvement to overcome the defects of the prior art. Utility Model Content

[0006] The utility model aims to solve the problem that the existing oiling machine cannot quantitatively supply oil according to the specific specifications of the steel pipe and cannot quantitatively supply grease to the steel pipes of the same specifications, thus affecting the normal storage, processing and use of the steel pipes.

[0007] To achieve the above objectives, the technical solution of the utility model provides a pumpless quantitative oil supply and oil discharge device, including a first cylinder, a pressure plate is provided on one side of the first cylinder, an oil barrel is provided on one side of the pressure plate, the oil barrel is connected to a connecting flange, a one-way valve is provided in the connecting flange, the connecting flange is connected to a second cylinder, a servo motor is provided in the second cylinder, a piston is provided on one side of the servo motor, and a second one-way valve is provided on one side of the piston.

[0008] As a preferred technical solution, the size of the pressure plate corresponds to the size of the oil barrel, ensuring that the grease in the oil barrel will not splash out of the oil barrel when the pressure plate falls.

[0009] As a preferred technical solution, a pressure cover is provided on one side of the piston, and a second one-way valve is provided in the pressure cover; the pressure cover ensures the sealing of the device to prevent grease leakage, and the second one-way valve can make the grease flow to one side to prevent backflow and cause insufficient lubrication.

[0010] As a preferred technical solution, the oil barrel is connected to the connecting flange via a base, and the oil barrel is fixed on the base to prevent the oil barrel from moving when pressing the oil, thereby causing the pressure plate to be unable to press the grease into the connecting flange.

[0011] As a preferred technical solution, corresponding openings are provided on the oil barrel and the base, and end face sealing rings are provided around the openings; the grease in the oil barrel enters the connecting flange from the openings to prevent the grease from overflowing from the openings and causing waste.

[0012] As a preferred technical solution, an exhaust valve is provided on the pressure plate; when the pressure plate falls into the oil barrel, there may be a certain amount of air between the bottom surface of the pressure plate and the grease liquid level. The exhaust valve can discharge the air here to avoid injecting air into the second cylinder and affecting the lubrication efficiency.

[0013] As a preferred technical solution, the first cylinder is connected to the pressure plate via a guide rod; the first cylinder drives the pressure plate to move together via the guide rod.

[0014] As a preferred technical solution, a first cylinder mounting plate is provided on one side of the first cylinder, and a junction box is provided on the first cylinder mounting plate; the junction box is connected to an external device to drive the first cylinder to move, so that the first cylinder drives the pressure plate to move together through the guide rod.

[0015] As a preferred technical solution, a ball valve is provided on one side of the connecting flange and an oil drain pipe is connected to the other side, and an oil collector is provided on the other side of the oil drain pipe; when the grease needs to be replaced, the ball valve is opened and the grease is discharged through the oil drain pipe, and the discharged grease is collected in the oil collector.

[0016] The beneficial effects of the utility model are as follows: the utility model provides a pumpless quantitative oiling and discharging device, by setting a servo motor and a piston, after a certain period of time, the servo motor drives the piston to move, so that the grease in the second cylinder is discharged to lubricate the steel pipe, by changing the forward speed and distance of the servo motor, the device can supply different amounts of grease to steel pipes of different specifications, and by fixing the forward speed and distance of the servo motor, quantitative oiling can be achieved for steel pipes of the same specification;

[0017] By setting the first one-way valve and the second one-way valve, the grease can only flow in one direction to avoid backflow and affect the lubrication effect;

[0018] By arranging the ball valve, the oil drain pipe and the oil collector, the remaining grease can be discharged from the oil drain pipe and collected by the oil collector. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the utility model;

[0020] Figure 2 This is the first embodiment of the utility model Figure 1 A schematic diagram of the structure of the second cylinder;

[0021] Figure 3 This is the first embodiment of the utility model Figure 1 Enlarged view of part A.

[0022] Among them, 1-first cylinder, 2-guide rod, 3-pressure plate, 4-junction box, 5-oil drum, 6-base, 7-first one-way valve, 8-oil drain pipe, 9-second one-way valve, 10-pressure cover, 11-second cylinder, 12-connecting support, 13-piston, 14-motor support, 15-servo motor, 16-first cylinder mounting plate, 17-ball valve, 18-connecting flange, 19-end face sealing ring, 20-exhaust valve, 21-oil collector. DETAILED DESCRIPTION

[0023] In order to make the technical means, technical features, purpose and technical effects of the utility model easy to understand, the utility model is further described below with reference to specific diagrams. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] like Figures 1 to 3 As shown: a pumpless quantitative oiling and oil discharge device comprises a first cylinder 1, a pressure plate 3 is provided on one side of the first cylinder 1, the first cylinder 1 is connected to the pressure plate 3 through a guide rod 2, the first cylinder 1 drives the pressure plate 3 to move together through the guide rod 2, an exhaust valve 20 is provided on the pressure plate 3, an oil barrel 5 is provided on one side of the pressure plate 3, the oil barrel 5 is connected to a connecting flange 18 through a base 6, the oil barrel 5 is fixed on the base 6, corresponding openings are provided on the oil barrel 5 and the base 6, and an end face sealing ring 19 is provided around the opening to prevent the oil barrel 5 from moving when the oil is pressed, so that the pressure plate 3 cannot press the grease into the connecting flange 18, and the grease in the oil barrel 5 enters the connecting flange 18 from the opening, so as to avoid the grease overflowing from the opening and causing waste.

[0026] A first one-way valve 7 is provided in the connecting flange 18, and the connecting flange 18 is connected to the second cylinder 11. A servo motor 15 is provided in the second cylinder 11. A piston 13 is provided on one side of the servo motor 15, and a second one-way valve 9 is provided on one side of the piston 13. The pressure plate 3 squeezes the grease in the oil barrel 5 from the opening into the connecting flange 18, and the grease flows into the second cylinder 11 through the first one-way valve 7. When the pressure plate 3 falls into the oil barrel 5, there may be a certain amount of air between the bottom surface of the pressure plate 3 and the grease liquid level. The exhaust valve 20 can discharge the air here to avoid injecting air into the second cylinder 11 and affecting the lubrication efficiency.

[0027] The size of the pressure plate 3 corresponds to the size of the oil barrel 5, ensuring that the grease in the oil barrel 5 will not splash out of the oil barrel 5 when the pressure plate 3 falls; a pressure cover 10 is provided on one side of the piston 13, and a second one-way valve 9 is provided in the pressure cover 10; the pressure cover 10 ensures the sealing of the device to avoid grease leakage, and the second one-way valve 9 can make the grease flow to one side to avoid insufficient lubrication caused by grease backflow.

[0028] A first cylinder mounting plate 16 is provided on one side of the first cylinder 1, and a junction box 4 is provided on the first cylinder mounting plate 16; the junction box 4 is connected to an external device to drive the first cylinder 1 to move, so that the first cylinder 1 drives the pressure plate 3 to move together through the guide rod 2.

[0029] A ball valve 17 is provided on one side of the connecting flange 18, and an oil drain pipe 8 is connected to the other side. An oil collector 21 is provided on the other side of the oil drain pipe 8. When the grease needs to be replaced, the ball valve 17 is opened, the grease is discharged through the oil drain pipe 8, and the discharged grease is collected in the oil collector 21.

[0030] Working principle: Start the first cylinder 1, which drives the pressure plate 3 to move through the guide rod 2. The pressure plate 3 presses the grease in the oil barrel 5 down to the second cylinder 11 through the connecting flange 18. The second cylinder 11 is provided with a piston 13 and a servo motor 15 on one side. After the set time is reached, the servo motor 15 drives the piston 13 forward. At this time, the second one-way valve 9 opens and delivers the grease to the thread according to the required amount (not shown in the figure). By changing the speed and distance of the servo motor 15, different amounts of grease can be supplied to steel pipes of different specifications. By fixing the speed and distance of the servo motor 15, quantitative supply of oil to steel pipes of the same specification can be achieved.

[0031] When the grease needs to be replaced, the ball valve 17 is opened and the grease is discharged through the oil drain pipe 8.

[0032] The above description is only a preferred embodiment of the utility model, and is not intended to limit the scope of implementation of the utility model. That is, all equivalent changes and modifications made according to the content of the patent application scope of the utility model should belong to the technical scope of the utility model.

Claims

1. A pumpless quantitative oil supply and oil discharge device, comprising a first cylinder (1), characterized in that: A pressure plate (3) is provided on one side of the first cylinder (1), an oil barrel (5) is provided on one side of the pressure plate (3), the oil barrel (5) is connected to a connecting flange (18), a one-way valve (7) is provided in the connecting flange (18), the connecting flange (18) is connected to a second cylinder (11), a servo motor (15) is provided in the second cylinder (11), a piston (13) is provided on one side of the servo motor (15), and a second one-way valve (9) is provided on one side of the piston (13).

2. A pumpless quantitative oil supply and oil discharge device according to claim 1, characterized in that: The size of the pressure plate (3) corresponds to the size of the oil barrel (5).

3. The pumpless quantitative oil supply and oil discharge device according to claim 2 is characterized in that: A pressure cover (10) is provided on one side of the piston (13), and a second one-way valve (9) is provided in the pressure cover (10).

4. The pumpless quantitative oil supply and oil discharge device according to claim 3 is characterized in that: The oil barrel (5) is connected to the connecting flange (18) via a base (6), and the oil barrel (5) is fixed on the base (6).

5. The pumpless quantitative oil supply and oil discharge device according to claim 4 is characterized in that: The oil barrel (5) and the base (6) are provided with corresponding openings, and an end face sealing ring (19) is provided around the openings.

6. The pumpless quantitative oil supply and oil discharge device according to claim 1 is characterized in that: The pressure plate (3) is provided with an exhaust valve (20).

7. A pumpless quantitative oil supply and oil discharge device according to claim 6, characterized in that: The first cylinder (1) is connected to the pressure plate (3) via a guide rod (2).

8. The pumpless quantitative oil supply and oil discharge device according to claim 7, characterized in that: A first cylinder mounting plate (16) is provided on one side of the first cylinder (1), and a junction box (4) is provided on the first cylinder mounting plate (16).

9. The pumpless quantitative oil supply and oil discharge device according to claim 1, characterized in that: A ball valve (17) is provided on one side of the connecting flange (18), and an oil drain pipe (8) is connected to the other side of the connecting flange (18). An oil collector (21) is provided on the other side of the oil drain pipe (8).

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