A metering oil injector

Abstract

This utility model relates to the field of oil injector technology, specifically a quantitative oil injector, including a mounting base, a support frame, and an oil storage tube. The bottom of the support frame is fixedly connected to the top of the mounting base, and the oil storage tube is fixedly connected to the top of the support frame. One end of the oil storage tube is fixedly connected to an oil inlet, and the other end is fixedly connected to a sealing cap. An internal cavity is provided within the oil storage tube, and an automatic oil injection device is installed within the cavity. Heating devices are fixedly connected to the outer surfaces of both sides of the oil storage tube, and an observation window is provided on the outer surface of the oil storage tube. The bottom of the heating device is fixedly connected to the top of the mounting base. This utility model, by incorporating an automatic oil injection device, allows a geared motor to drive a screw to rotate stably. Because the screw is threadedly connected to a moving piston plate, the rotation of the moving piston plate is effectively restricted, thus allowing the moving piston plate to move smoothly along the cavity axis, achieving automatic oil injection without manual intervention.

Description

Technical Field

[0001] This utility model relates to the field of oil injector technology, and in particular to a metering oil injector. Background Technology

[0002] In industrial production and machinery maintenance, precise lubrication is a core element in ensuring the long-term stable operation of equipment, and its performance directly affects the wear rate, energy consumption, and service life of mechanical components. However, existing lubrication equipment still has many technical limitations in practical applications, making it difficult to meet the stringent requirements of modern industry for lubrication precision, automation, and environmental adaptability. Traditional lubricators generally rely on manual operation; for example, manual grease guns require operators to hold the gun to maintain the coaxial fit between the nozzle and the grease cup, which is not only labor-intensive but also prone to lubrication deviations due to fatigue.

[0003] In existing technologies, most lubricators still rely on manual operation to complete the lubrication process. This manual operation not only leads to low lubrication efficiency, making it difficult to achieve efficient production processes, but also, due to human factors, the control of the lubrication volume often fails to meet the requirements. This imprecise lubrication control not only affects the normal operation and maintenance of equipment, but also fails to meet the urgent needs of modern automated production for high-precision, high-efficiency lubrication systems, thus restricting the improvement of production efficiency and product quality to a certain extent. Utility Model Content

[0004] The purpose of this invention is to solve the problems of manual oil injection and inaccurate oil volume control in the existing technology, and to propose a quantitative oil injector.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quantitative oil injector, comprising a mounting base, a support frame, and an oil storage pipe.

[0006] The bottom of the support frame is fixedly connected to the top of the mounting base, the oil storage pipe is fixedly connected to the top of the support frame, one end of the oil storage pipe is fixedly connected to an oil inlet, the other end of the oil storage pipe is fixedly connected to a sealing cap, the inside of the oil storage pipe is provided with a cavity, the cavity is provided with an automatic oil filling device, the outer surfaces on both sides of the oil storage pipe are fixedly connected to heating devices, the outer wall of the oil storage pipe is connected through an oil filling port, the outer surface of the oil storage pipe is provided with an observation window, and the bottom of the heating device is fixedly connected to the top of the mounting base.

[0007] Furthermore, the automatic oil injection device includes a geared motor fixedly connected to the outer surface of the sealing cover, a screw fixedly connected to the output end of the geared motor, the screw being threadedly connected to the sealing cover, a bearing being provided at the end of the screw away from the geared motor, the bearing being fixedly connected to the side of the limiting frame, and a movable piston plate being threadedly connected to the outer surface of the screw.

[0008] Furthermore, a sealing ring is fixedly connected to the outer surface of the movable piston plate, and a sliding strip is fixedly connected to the inner wall of the cavity, with the movable piston plate and the sliding strip being slidably connected.

[0009] Furthermore, the heating device includes a fixed frame fixedly connected to the top of the mounting base. An electric actuator is fixedly installed on the side surface of the fixed frame near the oil storage pipe. A constant temperature heating plate is fixedly connected to the telescopic end of the electric actuator. The curved surface of the constant temperature heating plate is in contact with the outer wall of the oil storage pipe.

[0010] Furthermore, two sets of heating devices are fixedly connected to the top of the mounting base, and the two sets of heating devices are symmetrically distributed.

[0011] Furthermore, a pressure relief pipe is connected through the outer surface of the sealing cover, and a pressure relief valve is fixedly installed at the top end of the pressure relief pipe.

[0012] Furthermore, two sets of support frames are provided on the top of the mounting base, and the support frames are fixedly connected to the mounting base by bolts.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by setting an automatic oil injection device, the geared motor can drive the screw to rotate stably. Since the screw is threadedly connected to the moving piston plate, and the moving piston plate slides against the inner wall of the cavity through a sliding strip, the moving piston plate can be effectively restricted from rotating synchronously with the screw, thereby enabling the moving piston plate to move smoothly along the cavity axis, realizing automatic oil injection without manual intervention. This not only improves the oil injection efficiency, but also ensures the controllability of the oil injection volume through the precision of the screw drive. At the same time, the sealing ring on the outer surface of the moving piston plate fits tightly against the inner wall of the cavity, which can significantly reduce the risk of oil leakage. Combined with the sealing connection between the sealing cap and the oil storage pipe, the overall sealing performance is further enhanced, solving the problems of oil injection relying on manual labor and inaccurate oil injection volume control in the prior art.

[0015] 2. In this utility model, by setting a heating device, the electric push rod on the fixed frame can adjust the extension length according to actual needs, push the constant temperature heating plate to fit tightly against the outer wall of the oil storage pipe, realize the heating of the oil in the oil storage pipe, effectively reduce the viscosity of the oil in low temperature environment, and avoid poor oil injection or blockage caused by viscous oil; solve the problem of poor low temperature adaptability in the prior art. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a quantitative oil injector is provided for this utility model;

[0017] Figure 2 This utility model provides a schematic diagram of the split structure of a quantitative oil injector;

[0018] Figure 3 This utility model provides a cross-sectional structural diagram of a quantitative oil injector;

[0019] Figure 4 This utility model relates to a quantitative oil injector. Figure 3 Enlarged view of point A;

[0020] Figure 5 This invention provides a top view of the structure of a quantitative oil injector.

[0021] Legend:

[0022] 1. Mounting base; 2. Support frame; 3. Oil reservoir pipe; 31. Oil inlet; 32. Observation window; 33. Sealing cap; 331. Pressure relief pipe; 332. Pressure relief valve; 34. Cavity; 341. Sliding strip; 35. Oil filling port; 4. Automatic oil filling device; 41. Gear motor; 42. Screw; 43. Limiting frame; 44. Piston plate; 45. Sealing ring; 5. Heating device; 51. Fixing frame; 52. Electric actuator; 53. Constant temperature heating plate. Detailed Implementation

[0023] Please see Figure 1-5 This utility model provides a technical solution: a quantitative oil injector, including a mounting base 1, a support frame 2 and an oil storage pipe 3.

[0024] The following section will describe in detail the specific setup and function of its automatic oil injection device 4 and heating device 5.

[0025] In this embodiment: the bottom of the support frame 2 is fixedly connected to the top of the mounting base 1, the oil storage pipe 3 is fixedly connected to the top of the support frame 2, one end of the oil storage pipe 3 is fixedly connected to the oil inlet 31, the other end of the oil storage pipe 3 is fixedly connected to the sealing cap 33, the inside of the oil storage pipe 3 is provided with a cavity 34, the cavity 34 is provided with an automatic oil filling device 4, the outer surfaces on both sides of the oil storage pipe 3 are fixedly connected with heating devices 5, the outer wall of the oil storage pipe 3 is connected through an oil filling port 35, the outer surface of the oil storage pipe 3 is provided with an observation window 32, and the bottom of the heating device 5 is fixedly connected to the top of the mounting base 1.

[0026] The effects achieved by the above components are as follows: the mounting base 1 provides a stable mounting foundation for the entire oil injector, preventing displacement during equipment operation; the support frame 2 achieves suspended support of the oil storage pipe 3 by fixing the oil storage pipe 3 at the top, while the bottom is fixed to the mounting base 1 to ensure the installation stability of the oil storage pipe 3; the oil inlet 31 serves as a lubricating oil output channel to achieve directional oil injection; the sealing cap 33 is sealed to the end of the oil storage pipe 3 to prevent lubricating oil leakage in the cavity 34 and ensure stable oil injection pressure; the observation window 32 allows operators to visually observe the remaining lubricating oil in the cavity 34 and replenish it in a timely manner.

[0027] Specifically, the automatic oil injection device 4 includes a reduction motor 41 fixedly connected to the outer surface of the sealing cover 33. A screw 42 is fixedly connected to the output end of the reduction motor 41. The screw 42 is threadedly connected to the sealing cover 33. A bearing is provided at the end of the screw 42 away from the reduction motor 41. The bearing is fixedly connected to the side of the limit frame 43. A movable piston plate 44 is threadedly connected to the outer surface of the screw 42.

[0028] The effects achieved by the above components are as follows: the geared motor 41 provides a power source for oil injection, and its output end drives the screw 42 to rotate; the screw 42 is threadedly connected to the sealing cover 33, and cooperates with the limit frame 43 through the bearing. The limit frame 43 restricts the axial movement of the screw 42, allowing it to rotate only around its own axis; the screw 42 is threadedly connected to the moving piston plate 44. When the screw 42 rotates, it can drive the moving piston plate 44 to move axially along the cavity 34, thereby achieving automatic oil injection by squeezing the lubricating oil in the cavity 34. At the same time, the moving speed of the piston plate 44 can be controlled by adjusting the speed of the geared motor 41, thereby accurately controlling the amount of oil injected.

[0029] Specifically, a sealing ring 45 is fixedly connected to the outer surface of the movable piston plate 44, and a sliding strip 341 is fixedly connected to the inner wall of the cavity 34, with the movable piston plate 44 and the sliding strip 341 being slidably connected.

[0030] The effects achieved by the above components are as follows: the sealing ring 45 fits tightly against the outer surface of the moving piston plate 44 and the inner wall of the cavity 34, eliminating the gap between them, preventing lubricating oil from leaking from the edge of the piston plate 44, and ensuring the oil injection pressure; the sliding strip 341 slides with the moving piston plate 44 to guide the movement direction of the piston plate 44, preventing the piston plate 44 from rotating synchronously with the screw 42, ensuring its stable linear movement along the cavity 34, and improving the oil injection stability.

[0031] Specifically, the heating device 5 includes a fixed frame 51 fixedly connected to the top of the mounting base 1. An electric push rod 52 is fixedly installed on the side surface of the fixed frame 51 near the oil storage pipe 3. A constant temperature heating plate 53 is fixedly connected to the telescopic end of the electric push rod 52. The curved surface of the constant temperature heating plate 53 is in contact with the outer wall of the oil storage pipe 3.

[0032] The effects achieved by the above components are as follows: the fixing bracket 51 provides installation support for the electric push rod 52, ensuring the relative position stability between the electric push rod 52 and the oil storage pipe 3; the electric push rod 52 can adjust the fit between the constant temperature heating plate 53 and the outer wall of the oil storage pipe 3 by telescopic adjustment, ensuring that the heating plate is in close contact with the oil storage pipe 3 and improving heat conduction efficiency; the constant temperature heating plate 53 can heat the lubricating oil in the oil storage pipe 3 to the set temperature and maintain it at a constant temperature, avoiding the lubricating oil from affecting the flow due to the increased viscosity at low temperature, and ensuring smooth oil injection.

[0033] Specifically, two sets of heating devices 5 are fixedly connected to the top of the mounting base 1, and the two sets of heating devices 5 are symmetrically distributed.

[0034] The effect achieved by the above components is that the two sets of heating devices 5 are symmetrically distributed along the axis of the oil storage pipe 3, and can heat from both sides of the oil storage pipe 3 at the same time, so that the lubricating oil temperature distribution in the oil storage pipe 3 is uniform, avoiding the difference in lubricating oil flow caused by local excessively high or low oil temperature, and further ensuring the stability of oil injection.

[0035] Specifically, a pressure relief pipe 331 is connected through the outer surface of the sealing cover 33, and a pressure relief valve 332 is fixedly installed at the top end of the pressure relief pipe 331.

[0036] The effect achieved by the above components is as follows: when excessive pressure is generated in the cavity 34 due to the compression or heating of lubricating oil, the pressure relief valve 332 automatically opens and the excess pressure in the cavity 34 is discharged through the pressure relief pipe 331, preventing damage to the cavity 34, sealing cover 33 or oil injection port 31 due to overpressure, and avoiding uncontrolled oil injection due to excessive pressure, thus ensuring the safe operation of the equipment.

[0037] Specifically, two sets of support frames 2 are provided on the top of the mounting base 1, and the support frames 2 are fixedly connected to the mounting base 1 by bolts.

[0038] The effects achieved by the above components are as follows: the two sets of support frames 2 symmetrically support the bottom of the oil storage pipe 3 from both sides, enhancing the installation stability of the oil storage pipe 3 and preventing the oil storage pipe 3 from shaking due to uneven force during oil filling or heating; the bolt connection method facilitates the installation, disassembly and maintenance of the support frame 2, and can be quickly disassembled and repaired when the oil storage pipe 3 or the support frame 2 malfunctions.

[0039] Working principle: First, lubricating oil is injected into the cavity 34 of the oil storage pipe 3 through the filling port 35. The operator observes the oil level through the observation window 32. Once the oil level reaches the set value, the filling is stopped to ensure that the sealing cap 33 and the oil storage pipe 3 are sealed tightly. Then, the heating device 5 is activated, and the electric push rod 52 extends to push the constant temperature heating plate 53 to fit tightly against the outer wall of the oil storage pipe 3. The constant temperature heating plate 53 heats the lubricating oil to the preset temperature and maintains the temperature, reducing the viscosity of the lubricating oil and ensuring its fluidity.

[0040] The geared motor 41 of the automatic oil injection device 4 is activated, which drives the screw 42 to rotate around its own axis. Since the limit frame 43 restricts the axial movement of the screw 42 through the bearing, the screw 42 only rotates and does not move, thereby driving the moving piston plate 44, which is threaded to it, to move towards the oil injection port 31 along the guide direction of the sliding bar 341. The moving piston plate 44 squeezes the lubricating oil in the cavity 34, so that the lubricating oil is output directionally from the oil injection port 31 under pressure, realizing automatic oil injection. By adjusting the speed of the geared motor 41, the moving speed of the piston plate 44 can be controlled, and the amount of oil injected can be precisely adjusted.

Claims

1. A metering oil injector, comprising a mounting base (1), a support frame (2), and an oil reservoir (3), characterized in that: The bottom of the support frame (2) is fixedly connected to the top of the mounting base (1), the oil storage pipe (3) is fixedly connected to the top of the support frame (2), one end of the oil storage pipe (3) is fixedly connected to an oil inlet (31), the other end of the oil storage pipe (3) is fixedly connected to a sealing cap (33), the inside of the oil storage pipe (3) is provided with a cavity (34), an automatic oil injection device (4) is provided in the cavity (34), a heating device (5) is fixedly connected to the outer surfaces on both sides of the oil storage pipe (3), an oil filling port (35) is connected through the outer wall of the oil storage pipe (3), an observation window (32) is provided on the outer surface of the oil storage pipe (3), and the bottom of the heating device (5) is fixedly connected to the top of the mounting base (1).

2. A dosing oil injector according to claim 1, characterized in that: The automatic oil injection device (4) includes a geared motor (41) fixedly connected to the outer surface of the sealing cover (33). The output end of the geared motor (41) is fixedly connected to a screw (42). The screw (42) is threadedly connected to the sealing cover (33). A bearing is provided at the end of the screw (42) away from the geared motor (41). The bearing is fixedly connected to the side of the limit frame (43). The outer surface of the screw (42) is threadedly connected to a movable piston plate (44).

3. A dosing oil injector according to claim 2, characterized in that: A sealing ring (45) is fixedly connected to the outer surface of the movable piston plate (44), and a sliding strip (341) is fixedly connected to the inner wall of the cavity (34). The movable piston plate (44) and the sliding strip (341) are slidably connected.

4. The dosing oil injector according to claim 1, characterized in that: The heating device (5) includes a fixed frame (51) fixedly connected to the top of the mounting base (1). An electric push rod (52) is fixedly installed on the side surface of the fixed frame (51) near the oil storage pipe (3). A constant temperature heating plate (53) is fixedly connected to the telescopic end of the electric push rod (52). The curved surface of the constant temperature heating plate (53) is in contact with the outer wall of the oil storage pipe (3).

5. A dosing oil injector according to claim 4, characterized in that: The heating device (5) has two sets fixedly connected to the top of the mounting base (1), and the two sets of heating devices (5) are symmetrically distributed.

6. A metering oil injector according to claim 1, characterized in that: The outer surface of the sealing cover (33) is connected to a pressure relief pipe (331), and a pressure relief valve (332) is fixedly installed at the top end of the pressure relief pipe (331).

7. A metering oil injector according to claim 1, characterized in that: The support frame (2) is provided in two sets on the top of the mounting base (1), and the support frame (2) is fixedly connected to the mounting base (1) by bolts.

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