A quantitative oiling device

Abstract

The utility model discloses a kind of quantitative oiling devices, belong to oiling device technical field, comprising: cylinder, oil inlet block, oil outlet block, oil storage block and adjusting block. Cylinder-driven sub-plunger is inserted into the inner chamber of oil inlet block, and control oil circuit is on-off. Oil storage block is fixed on the side of oil inlet block, its inside is equipped with oil storage cavity, and is communicated with the inner chamber of oil inlet block by oil channel. Adjusting block is set above oil storage block, its inside is slidably provided with main plunger by adjusting screw, and the lower end of main plunger is inserted into oil storage cavity. By rotating the adjusting screw with scale, the position of main plunger in oil storage cavity can be changed, so as to accurately adjust the effective working volume of oil storage cavity. The utility model adopts volumetric ration principle, compact structure, high quantitative accuracy (up to ±0.5%), convenient to adjust, and can effectively prevent oil seepage and wire drawing after oil injection through the back suction action of sub-plunger, suitable for mechanical lubrication and other fields need to time, quantitative oil injection occasions.

Description

Technical Field

[0001] This utility model relates to the field of oiling device technology, and specifically to a quantitative oiling device. Background Technology

[0002] In many fields such as machinery manufacturing, automotive maintenance, and industrial lubrication, it is often necessary to add grease or other lubricating media to critical parts of equipment (such as bearings and gears) regularly and in measured quantities to reduce wear and extend equipment life. Traditional manual lubrication methods have obvious drawbacks: on the one hand, they require the equipment to be stopped, affecting production efficiency; on the other hand, it is difficult to accurately control the amount of grease added manually, which can easily lead to grease waste or increased equipment wear due to insufficient lubrication.

[0003] While some existing automatic or semi-automatic oiling devices have improved efficiency, they often suffer from problems such as complex structure, low metering accuracy, inconvenient adjustment, or oil leakage and stringing due to oil pressure after oiling. Therefore, there is an urgent need for a metering oiling device with a reasonable structure, accurate metering, convenient adjustment, and effective prevention of leakage. Utility Model Content

[0004] The purpose of this utility model is to provide a quantitative oiling device that enables automatic, timed, and quantitative oiling, thereby improving production efficiency, ensuring lubrication effect, saving lubrication costs, and effectively avoiding leakage problems after oiling.

[0005] Technical solution: This utility model provides a quantitative oiling device, including: a cylinder, the cylinder including a cylinder body, an upper piston block, a lower piston block, a sub-plunger, and an air connector. The upper piston block and the lower piston block are respectively disposed on the upper and lower sides inside the cylinder body. The upper part of the sub-plunger is connected to the upper piston block by a positioning pin, and the lower part passes through the lower piston block. The air connector is disposed on the outside of the cylinder body, and the cylinder body at the connection point is provided with an air hole corresponding to the air connector. An oil inlet block is provided below the cylinder. An oil inlet chamber is provided inside the oil inlet block. The lower end of the sub-plunger is inserted into the oil inlet chamber and an oil seal is provided between it and the oil inlet block. Two oil inlet channels are provided on one side of the oil inlet chamber. An oil outlet block is located below the oil inlet block and has an oil outlet hole in the middle. An oil storage block is fixed to one side of an oil inlet block by bolts. An oil storage cavity is provided inside the oil storage block. Two oil outlet channels are provided on one side of the oil storage cavity. The direction of the oil outlet channels is consistent with that of the oil inlet channels. A sealing ring is provided at the connection between the corresponding oil storage block and the oil inlet block. An oil drain plug is provided below the oil storage block to block the oil storage cavity from below. An adjusting block is provided above the oil storage block, and a main plunger is slidably disposed inside the adjusting block, with the lower end of the main plunger inserted into the oil storage chamber.

[0006] Furthermore, in the aforementioned quantitative oiling device, piston sealing rings are provided on the outer sides of both the upper and lower piston blocks to ensure the airtightness of the cylinder interior.

[0007] Furthermore, in the aforementioned quantitative oiling device, a through hole is provided on the side of the oil inlet block, the through hole is connected to the oil inlet chamber, and a plug is provided at the through hole for sealing, which facilitates cleaning and maintenance.

[0008] Furthermore, in the aforementioned quantitative oiling device, an installation groove is provided below the oil inlet block, and a protruding installation part corresponding to the installation groove is provided above the oil outlet block. An oil inlet sealing ring is provided between the installation groove and the protruding installation part to ensure the sealing of the connection.

[0009] Furthermore, in the aforementioned quantitative oiling device, the oil outlet below the oil outlet block can be connected to a Luer connector or other tooling, thereby improving the versatility and ease of use of the device.

[0010] Furthermore, in the aforementioned quantitative oiling device, an adjusting screw is inserted inside the adjusting block, and an adjusting nut is provided at the upper end. The adjusting screw slides inside the adjusting block by screwing into the adjusting nut. The lower end of the adjusting screw abuts against the main plunger, pressing down the main plunger to control the volume of the oil storage chamber, thereby achieving stepless adjustment of the oil injection quantity.

[0011] Furthermore, in the aforementioned quantitative oiling device, the adjusting block is provided with scale lines, which can precisely change the position of the adjusting screw according to the oil dispensing requirements to achieve precise quantitative oil dispensing, and the operation is intuitive and convenient.

[0012] Furthermore, in the aforementioned quantitative oiling device, a gasket and an oil seal for the adjusting block are sequentially arranged from top to bottom at the oil storage chamber where the main plunger and the lower end of the adjusting block connect, thereby improving the sealing effect of the sliding connection and preventing grease leakage.

[0013] As can be seen from the above technical solution, this utility model has the following beneficial effects: The quantitative oiling device of this utility model adopts the principle of volumetric quantitative control. The effective working volume of the oil storage chamber is directly changed by rotating the adjusting screw with scale lines. The structure is simple and reliable, with high quantitative accuracy (up to ±0.5%), and the adjustment process is intuitive and convenient. The automatic opening and closing of the oil circuit is achieved by driving the sub-plunger with a cylinder. It can be connected to an automated control system to realize timed and quantitative oil injection without the need for manual operation during machine shutdown, which significantly improves production efficiency. Oil seals, O-rings, and sealing rings are set at multiple key connections and moving parts, and it has a back suction function, which can effectively avoid oil leakage and stringing after oil injection due to residual oil pressure, and keep the working environment clean. The device has a reasonable structural design and high integration. The oil outlet can be adapted to various connectors and is suitable for various scenarios such as automotive maintenance, industrial lubrication, and centralized oil supply systems. The lubricating medium can be fluids such as grease and adhesives. It is equipped with an oil drain plug and an oil inlet plug to facilitate the cleaning and maintenance of the oil storage chamber and the oil inlet chamber. Reliable lubrication also helps to extend the service life of the lubricated equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a quantitative oiling device according to the present invention; Figure 2 This is a cross-sectional view of a quantitative oiling device according to the present invention.

[0015] In the diagram: 1-Cylinder, 11-Upper piston block, 12-Lower piston block, 13-Sub-plunger, 131-Locking pin, 14-Air connector, 15-Piston seal ring; 2-Oil inlet block, 21-Oil inlet chamber, 22-Oil seal, 23-Oil inlet channel, 24-Plug; 3-Oil outlet block, 31-Oil outlet hole, 32-Oil inlet sealing ring; 4-Oil storage block, 41-Oil storage cavity, 42-Oil outlet channel, 43-Sealing ring, 44-Oil drain plug; 5-Adjusting block, 51-Main plunger, 511-Gasket, 512-Adjusting block oil seal, 52-Adjusting screw, 53-Adjusting nut. Detailed Implementation

[0016] Example

[0017] like Figure 1-2The illustrated metering oiling device includes: a cylinder 1 as a power source, erected above an oil inlet block 2 and fixed with screws; an upper piston block 11 and a lower piston block 12 are provided inside the cylinder 1, and piston sealing rings 15 are installed on the outer sides of both to ensure the sealing of the cylinder cavity; the upper end of a sub-plunger 13 is fixedly connected to the upper piston block 11 by a positioning pin 131, and the lower end passes through the lower piston block 12 and the top of the oil inlet block 2 and extends into the oil inlet chamber 21; an air connector 14 is installed on the side wall of the cylinder 1 for connecting compressed air to drive the piston to move up and down; the oil inlet block 2 is located below the cylinder 1, and an oil inlet chamber 21 is provided inside the oil inlet block 2; the lower end of the sub-plunger 13 is inserted into the oil inlet chamber 21, and an oil seal 22 is provided between the sub-plunger 13 and the oil inlet block 2; two oil seals are provided on one side of the oil inlet chamber 21. An oil inlet channel 23 is provided; the oil outlet block 3 is located below the oil inlet block 2, and an oil outlet hole 31 is provided in the middle; the oil storage block 4 is fixed to one side of the oil inlet block 2 by bolts, and an oil storage chamber 41 is provided inside the oil storage block 4. Two oil outlet channels 42 are provided on one side of the oil storage chamber 41. The direction of the oil outlet channels 42 is consistent with that of the oil inlet channel 23, and a sealing ring 43 is provided at the connection between the corresponding oil storage block 4 and the oil inlet block 2, thereby forming a complete oil circuit connecting the oil inlet chamber 21 and the oil storage chamber 41. An oil drain plug 44 is provided below the oil storage block 4 to block the oil storage chamber 41 from below. It can be opened when needed to drain residual oil or for cleaning; the adjusting block 5 is located above the oil storage block 4, and a main plunger 51 is slidably provided inside the adjusting block 5. The lower end of the main plunger 51 is inserted into the oil storage chamber 41.

[0018] In this embodiment, the oil inlet block 2 has a through hole on its side, which connects to the oil inlet chamber 21. A plug 24 is provided at the through hole for sealing. Normally, the plug 24 is used for sealing, which facilitates maintenance and cleaning.

[0019] like Figure 2 The illustrated metering oiling device has an oil outlet block 3 that is embedded in the mounting groove at the bottom of an oil inlet block 2 through a protruding mounting part at its top. An oil inlet sealing ring 32 is provided between the two to ensure a seal, and the two are fixed by screws. An oil outlet hole 31 is machined in the center of the oil outlet block 3, and its lower end can be connected to a Luer connector or other types of tooling to inject grease into a specific part.

[0020] In this embodiment, an adjusting screw 52 is inserted inside the adjusting block 5, and an adjusting nut 53 is provided at the upper end. The adjusting screw 52 slides inside the adjusting block 5 by screwing into the adjusting nut 53. The lower end of the adjusting screw 52 abuts against the main plunger 51, pressing down the main plunger 51 to control the volume of the oil storage chamber 41. The adjusting block 5 is provided with scale lines, and the position of the adjusting screw 52 can be changed according to the oil output requirements to achieve quantitative oil output.

[0021] In this embodiment, a gasket 511 and an adjusting block oil seal 512 are arranged sequentially from top to bottom at the oil storage cavity 41 where the main plunger 51 and the lower end of the adjusting block 5 are connected, thereby improving the sealing effect.

[0022] Quantitative adjustment process: When it is necessary to change the single injection volume, first loosen the adjusting nut 53, then rotate the adjusting screw 52. Rotating the adjusting screw 52 clockwise pushes the main plunger 51 downward, reducing the effective volume V of the oil reservoir 41, thereby reducing the single injection volume. Rotating the adjusting screw 52 counterclockwise causes the main plunger 51 to move upward under the action of grease pressure or a spring (if present), increasing the effective volume V of the oil reservoir 41, thereby increasing the single injection volume. By observing the scale lines on the adjusting block 5, the position of the adjusting screw 52 can be precisely set. After adjusting to the required injection volume, tighten the adjusting nut 53.

[0023] It should be noted that the above description is merely a technical solution of the utility model and not a limitation. Although the present utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of the utility model without departing from the scope of the present utility model, and all such modifications and substitutions should be covered within the scope of the claims of the present utility model.

Claims

1. A metering oiling device, characterized in that: include: The cylinder (1) includes a cylinder body, an upper piston block (11), a lower piston block (12), a sub-plunger (13), and an air connector (14). The upper piston block (11) and the lower piston block (12) are respectively disposed on the upper and lower sides inside the cylinder body. The upper part of the sub-plunger (13) is connected to the upper piston block (11) by a positioning pin (131), and the lower part passes through the lower piston block (12). The air connector (14) is disposed on the outside of the cylinder body, and an air hole is provided on the cylinder body at the connection point corresponding to the air connector (14). Oil inlet block (2), the oil inlet block (2) is located below the cylinder (1), the oil inlet block (2) is provided with an oil inlet chamber (21), the lower end of the sub-plunger (13) is inserted into the oil inlet chamber (21), and an oil seal (22) is provided between it and the oil inlet block (2), and two oil inlet channels (23) are provided on one side of the oil inlet chamber (21); Oil outlet block (3), the oil outlet block (3) is located below the oil inlet block (2), and an oil outlet hole (31) is provided in the middle; An oil storage block (4) is fixed to one side of an oil inlet block (2) by bolts. An oil storage cavity (41) is provided inside the oil storage block (4). Two oil outlet channels (42) are provided on one side of the oil storage cavity (41). The direction of the oil outlet channels (42) is consistent with that of the oil inlet channel (23). A sealing ring (43) is provided at the connection between the corresponding oil storage block (4) and the oil inlet block (2). An oil drain plug (44) is provided below the oil storage block (4) to block the oil storage cavity (41) from below. Adjusting block (5), the adjusting block (5) is set above the oil storage block (4), and a main plunger (51) is slidably arranged inside the adjusting block (5), with the lower end of the main plunger (51) inserted into the oil storage chamber (41).

2. The metering oiling device according to claim 1, characterized in that: Piston sealing rings (15) are provided on the outer sides of both the upper piston block (11) and the lower piston block (12).

3. The metering oiling device according to claim 1, characterized in that: The oil inlet block (2) has a through hole on its side, which is connected to the oil inlet chamber (21). A plug (24) is provided at the through hole for sealing.

4. The metering oiling device according to claim 1, characterized in that: An installation groove is provided below the oil inlet block (2), and a protruding installation part is provided above the oil outlet block (3) that corresponds to the installation groove. An oil inlet sealing ring (32) is provided between the installation groove and the protruding installation part.

5. The metering oiling device according to claim 1, characterized in that: The oil outlet hole (31) below the oil outlet block (3) can be connected to a Luer connector or other tooling for easy use.

6. The metering oiling device according to claim 1, characterized in that: An adjusting screw (52) is inserted inside the adjusting block (5), and an adjusting nut (53) is provided at the upper end. The adjusting screw (52) slides inside the adjusting block (5) by screwing into the adjusting nut (53). The lower end of the adjusting screw (52) abuts against the main plunger (51) and presses down the main plunger (51) to control the volume of the oil storage chamber (41).

7. A metering oiling device according to claim 6, characterized in that: The adjusting block (5) is equipped with scale lines, and the position of the adjusting screw (52) can be changed according to the oil output requirements to achieve quantitative oil output.

8. The metering oiling device according to claim 1, characterized in that: The main plunger (51) and the lower end of the adjusting block (5) are connected to the oil storage chamber (41) and a gasket (511) and an adjusting block oil seal (512) are arranged from top to bottom to improve the sealing effect.

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