Automatic quantitative filling device for grease intelligent lubrication

Abstract

The utility model discloses a kind of automatic quantitative filling devices for lubricating grease intelligent lubricating grease control, it is related to lubricating grease filling equipment technical field, including: including lubricating grease oil storage tank, still including drive mechanism being installed on the lubricating grease oil storage tank, the lower guide cylinder being fixed in the bottom of the lubricating grease oil storage tank and the in-tank oil taking cylinder being movably arranged in the inside of the lubricating grease oil storage tank;The utility model discards the common spring one-way valve structure in traditional lubricating pump, and innovatively uses the lifting reciprocating motion of in-tank oil taking cylinder to realize the in-and-out of lubricating grease with liquid level difference and hole position alignment mechanism cooperation.Mechanical hard connection structure completely solves the pumping failure caused by the valve core jam, spring fatigue failure or sealing not strict of one-way valve prone to appear when traditional device handles impurity or high viscosity lubricating grease, significantly improves the reliability of device operation.

Description

Technical Field

[0001] This utility model relates to the technical field of grease filling equipment, and in particular to an automatic quantitative filling device for intelligent grease control. Background Technology

[0002] In various modern industrial production and machining fields, the long-term stable operation of mechanical equipment highly depends on an effective lubrication system. Whether it's heavy mining machinery, precision CNC machine tools, or automated production line equipment, key friction pairs such as bearings, gears, and guide rails require regular grease application to reduce friction and wear between parts, lower operating temperatures, prevent corrosion, and extend the equipment's service life. The traditional method of manually applying grease point by point using a handheld grease gun is inefficient, labor-intensive, and struggles to ensure uniform grease distribution. It is increasingly unable to meet the demands of modern continuous production. Avoiding dry friction damage due to insufficient grease or resource waste and environmental pollution caused by excessive grease application is crucial for ensuring the safe operation of mechanical equipment.

[0003] However, existing automatic quantitative grease dispensing devices still have significant technical limitations in practical applications, mainly in the reliability of their fluid control and delivery structures. Currently, most mainstream electric lubrication pumps employ plunger or gear-type structures, whose oil suction and discharge processes typically rely heavily on the cooperation of spring-loaded check valve assemblies. This means that the negative pressure generated by the reciprocating motion of the plunger opens the suction valve, and the pressure opens the discharge valve. However, when handling high-viscosity greases, due to the grease's poor fluidity and the potential presence of solid additives or minute impurities, traditional spring-loaded check valves are prone to issues such as valve core jamming, spring fatigue failure, or impurities causing poor sealing. Once the check valve fails, grease backflow occurs, resulting in severely inaccurate dispensing volumes, and even causing the pump to run dry without dispensing oil. Therefore, an intelligent grease control automatic quantitative dispensing device is provided to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic quantitative filling device for intelligent grease control in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic quantitative grease dispensing device for intelligent grease control, comprising: a grease reservoir, a drive mechanism mounted on the grease reservoir, a lower guide cylinder fixed to the bottom of the grease reservoir, and an internal oil dispensing cylinder movably disposed inside the grease reservoir; the drive mechanism is tractively connected to the internal oil dispensing cylinder and is used to drive the internal oil dispensing cylinder to perform a reciprocating motion of lifting and lowering relative to the lower guide cylinder; the device controls the quantitative intake and discharge of grease by changing the lifting and lowering position of the internal oil dispensing cylinder.

[0006] As a further embodiment of this utility model: the driving mechanism includes a drive motor, an eccentric turntable and a connecting rod. The output shaft of the drive motor is connected to the eccentric turntable. One end of the connecting rod is hinged to the eccentric position of the eccentric turntable, and the other end is used to drive the oil extraction cylinder inside the tank.

[0007] As a further improvement of this utility model: the bottom of the grease reservoir is provided with a lower lifting bracket, and the drive motor is mounted on the lower lifting bracket.

[0008] As a further embodiment of this utility model, it also includes an oil sampling cylinder top column, which is slidably inserted through the inner side of the lower guide cylinder; the end of the connecting rod away from the eccentric turntable is connected to the bottom end of the oil sampling cylinder top column.

[0009] As a further improvement of this utility model: the bottom of the oil sampling cylinder inside the box is connected to a lower connecting pipe, and the lower connecting pipe is fixedly connected to the top column of the oil sampling cylinder, so that the top column of the oil sampling cylinder can push the oil sampling cylinder inside the box to move up and down.

[0010] As a further embodiment of this utility model: a first liquid outlet is provided on the lower guide cylinder, and a second liquid outlet is provided on the component that moves with the oil taking cylinder in the tank; when the oil taking cylinder in the tank moves to the highest point, the first liquid outlet and the second liquid outlet are aligned and connected to each other.

[0011] As a further embodiment of this utility model: a grease guide tube is connected to the outer wall of the lower guide tube, and one end of the grease guide tube covers the first outlet hole; when the oil taking tube in the tank moves to the lowest point, the top of the oil taking tube in the tank is lower than the liquid level in the grease storage tank.

[0012] As a further improvement of this utility model, several support legs are fixedly installed on the outer bottom of the grease reservoir.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model abandons the spring-loaded check valve structure commonly found in traditional lubrication pumps, and innovatively adopts the reciprocating motion of the oil collection cylinder inside the tank, combined with the liquid level difference and orifice alignment mechanism, to achieve the intake and discharge of lubricating grease. This mechanical hard-connection structure completely solves the suction failure caused by valve core jamming, spring fatigue failure, or poor sealing that easily occurs in check valves when traditional devices handle lubricating grease containing impurities or high viscosity, significantly improving the reliability of the device operation; 2. This invention employs a "submerged" oil suction principle. When the oil collection cylinder inside the tank moves to a low position, its top is directly below the liquid surface, utilizing gravity and the liquid level difference to automatically fill the cylinder with lubricating grease. Compared to traditional pumps that rely on negative pressure suction, this device effectively overcomes the difficulties in oil suction and air resistance caused by low-temperature environments or high-viscosity greases, ensuring the continuity and stability of oil supply. 3. This utility model features an ingenious overall structural design with few components and a rational layout. The drive mechanism is located at the bottom of the housing, facilitating installation and maintenance; the internal fluid delivery channel is intuitive and easy to clean. The streamlined structure not only reduces manufacturing costs but also significantly decreases subsequent maintenance workload and repair expenses, extending the equipment's service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the present invention from a second perspective; Figure 3 This is a schematic diagram of the structure of the grease conduit in this utility model; Figure 4 This is a schematic diagram of the drive motor in this utility model; Figure 5 This is a schematic diagram of the structure of the top column of the oil extraction cylinder in this utility model; Figure 6 This is a schematic diagram of the oil extraction cylinder inside the box in this utility model.

[0015] In the diagram: 1. Grease reservoir; 2. Support leg; 3. Lower lifting bracket; 4. Drive motor; 5. Eccentric turntable; 6. Connecting rotating rod; 7. Oil tapping cylinder top column; 8. Lower guide cylinder; 9. First outlet hole; 10. Grease guide pipe; 11. Oil tapping cylinder inside the tank; 12. Lower connecting pipe; 13. Second outlet hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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 can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0018] like Figures 1 to 6 As shown, this utility model provides an automatic quantitative grease dispensing device for intelligent grease control. The device includes a grease reservoir 1, with several support legs 2 fixedly installed on the outer side of the bottom of the grease reservoir 1. The support legs 2 stably place the device on the working surface, ensuring that the grease stored in the grease reservoir 1 remains horizontal and stable. The core of this device is that it also includes a drive mechanism installed on the grease reservoir 1, a lower guide cylinder 8 fixed to the bottom of the grease reservoir 1, and an internal oil dispensing cylinder 11 movably disposed inside the grease reservoir 1. The drive mechanism is connected to the internal oil dispensing cylinder 11 for driving the internal oil dispensing cylinder 11 to move up and down relative to the lower guide cylinder 8. By changing the position of the internal oil dispensing cylinder 11, the device cleverly utilizes the liquid level difference and orifice alignment mechanism to realize the automatic quantitative intake and discharge of grease, thereby replacing the traditional easily failed spring check valve structure.

[0019] In the specific implementation of the drive structure, the bottom of the grease reservoir 1 is provided with a lower hanging bracket 3. The drive mechanism is installed on the lower hanging bracket 3, thus located below the tank body, protecting the motor from grease contamination. The drive mechanism includes a drive motor 4, an eccentric turntable 5, and a connecting rod 6. The drive motor 4 serves as the power source, and its output shaft is keyed or fastened to the center of the eccentric turntable 5, driving the eccentric turntable 5 to rotate. One end of the connecting rod 6 is hinged to the eccentric position of the eccentric turntable 5, and the other end is used to drive the oil taking cylinder 11 inside the tank. Through the rotation of the eccentric turntable 5, the rotational motion of the drive motor 4 is converted into the reciprocating swing and lifting motion of the end of the connecting rod 6, providing mechanical power for the subsequent oil pumping action.

[0020] In order to stably transmit power to the internal oil sampling assembly, the device also includes an oil sampling cylinder top column 7. The oil sampling cylinder top column 7 is slidably inserted inside the lower guide cylinder 8. The end of the connecting rod 6 away from the eccentric turntable 5 is hinged to the bottom end of the oil sampling cylinder top column 7. The lower guide cylinder 8 plays a limiting and guiding role, ensuring that the oil sampling cylinder top column 7 can only move up and down in the vertical direction, eliminating the lateral component force caused by the swing of the connecting rod 6. The bottom of the oil sampling cylinder 11 inside the box is connected to a lower connecting pipe 12, which is fixedly connected to the oil sampling cylinder top column 7, so that the oil sampling cylinder top column 7 can push the oil sampling cylinder 11 inside the box to move up and down inside the grease reservoir 1.

[0021] Regarding the core oil suction and discharge control logic, a first liquid outlet hole 9 is provided on the lower guide cylinder 8, and a second liquid outlet hole 13 is provided on the component that moves with the oil taking cylinder 11 in the box. In this embodiment, the second liquid outlet hole 13 is specifically provided on the side wall at the bottom of the lower connecting pipe 12 or the oil taking cylinder 11 in the box. A grease guide pipe 10 is connected to the outer side wall of the lower guide cylinder 8. One end of the grease guide pipe 10 covers the first liquid outlet hole 9 and is used to deliver a certain amount of grease to the external lubrication point.

[0022] The working principle of this utility model is as follows: start the drive motor 4 to drive the eccentric turntable 5 to rotate, and then pull the oil cylinder top column 7 to move up and down in the lower guide cylinder 8 through the connecting rotating rod 6.

[0023] When the oil-collecting cylinder 11 inside the tank is pulled down to the lowest point, the top of the oil-collecting cylinder 11 is lower than the liquid level in the grease reservoir 1. At this time, the grease in the grease reservoir 1 will overflow the top edge of the oil-collecting cylinder 11 under the action of gravity, automatically pouring into and filling the internal cavity of the oil-collecting cylinder 11, completing the "oil suction" process. This process does not rely on vacuum suction, so it has excellent adaptability to high viscosity greases.

[0024] When the oil tapping cylinder 11 inside the tank is pushed upward to the highest point, the highest point of the oil tapping cylinder 11 is higher than the liquid level inside the grease reservoir 1. At this time, the first outlet hole 9 and the second outlet hole 13 are aligned and connected to each other. Since the oil tapping cylinder 11 inside the tank has been raised to a high position and its interior is full of grease, under the action of gravitational potential energy or the pressure of subsequent continuous oil supply, the grease stored in the oil tapping cylinder 11 inside the tank enters the first outlet hole 9 through the aligned second outlet hole 13, and is finally discharged through the grease guide tube 10, completing the "oil discharge" process.

[0025] By adjusting the speed of the drive motor 4 or the eccentricity of the eccentric turntable 5, the frequency of refilling and the amount of refilling per stroke can be precisely controlled, achieving reliable quantitative refilling without the need for a check valve.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic quantitative dispensing device for intelligent lubricating grease control, comprising a lubricating grease reservoir (1), characterized in that: It also includes a drive mechanism installed on the grease reservoir (1), a lower guide cylinder (8) fixed to the bottom of the grease reservoir (1), and an in-tank oil extraction cylinder (11) movably disposed inside the grease reservoir (1); the drive mechanism is connected to the in-tank oil extraction cylinder (11) for driving the in-tank oil extraction cylinder (11) to perform reciprocating motion of lifting and lowering relative to the lower guide cylinder (8); the device controls the quantitative intake and discharge of grease by changing the lifting and lowering position of the in-tank oil extraction cylinder (11).

2. The automatic quantitative dispensing device for intelligent grease control according to claim 1, characterized in that, The driving mechanism includes a drive motor (4), an eccentric turntable (5) and a connecting rod (6). The output shaft of the drive motor (4) is connected to the eccentric turntable (5). One end of the connecting rod (6) is hinged to the eccentric position of the eccentric turntable (5), and the other end is used to drive the oil extraction cylinder (11) inside the tank.

3. The automatic quantitative dispensing device for intelligent grease control according to claim 2, characterized in that, The bottom of the grease reservoir (1) is provided with a lower hanging bracket (3), and the drive motor (4) is installed on the lower hanging bracket (3).

4. The automatic quantitative dispensing device for intelligent grease control according to claim 2, characterized in that, It also includes an oil sampling cylinder top column (7), which is slidably inserted inside the lower guide cylinder (8), and the end of the connecting rotating rod (6) away from the eccentric turntable (5) is connected to the bottom end of the oil sampling cylinder top column (7).

5. The automatic quantitative dispensing device for intelligent grease control according to claim 4, characterized in that, The bottom of the oil sampling cylinder (11) in the box is connected to a lower connecting pipe (12), and the lower connecting pipe (12) is fixedly connected to the top column (7) of the oil sampling cylinder, so that the top column (7) of the oil sampling cylinder can push the oil sampling cylinder (11) in the box to move up and down.

6. The automatic quantitative dispensing device for intelligent grease control according to claim 1, characterized in that, The lower guide cylinder (8) is provided with a first liquid outlet hole (9), and the component that moves with the oil taking cylinder (11) in the tank is provided with a second liquid outlet hole (13); when the oil taking cylinder (11) in the tank moves to the highest point, the first liquid outlet hole (9) and the second liquid outlet hole (13) are aligned and connected to each other.

7. The automatic quantitative dispensing device for intelligent grease control according to claim 6, characterized in that, The outer wall of the lower guide tube (8) is connected to a grease guide tube (10), and one end of the grease guide tube (10) covers the first outlet hole (9); when the oil taking tube (11) in the tank moves to the lowest point, the top of the oil taking tube (11) in the tank is lower than the liquid level in the grease storage tank (1).

8. The automatic quantitative dispensing device for intelligent grease control according to claim 1, characterized in that, Several support legs (2) are fixedly installed on the outer bottom of the grease reservoir (1).

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