Automatic lubricating grease filling device based on dynamic operation of gear

Abstract

This invention relates to the field of lubrication devices, and more particularly to an automatic grease filling device based on the dynamic operation of gears. The device includes a storage unit, an oil pump, and a nozzle. The oil pump is connected to the storage unit, and the nozzle is connected to the oil pump. A grease injection controller is provided between the nozzle and the oil pump, and the grease injection controller is connected to the oil pump. The nozzle faces one tooth surface of the gear, and a steering component is provided on the nozzle. The steering component can change the orientation of the nozzle so that it faces the other tooth surface of the gear. This invention facilitates the filling of grease into gearboxes and reduces the burden on testing personnel.

Description

Technical Field

[0001] This invention relates to the field of lubrication devices, and more particularly to an automatic grease filling device based on the dynamic operation of gears. Background Technology

[0002] In the development of equipment with gear transmission mechanisms, such as gearboxes, fatigue tests are conducted on the gear transmission mechanisms. Taking a gearbox as an example, by analyzing the load spectrum of the gearbox, the stress cycle number of its main components, gears and bearings, is obtained, and the cumulative fatigue damage degree of the components is calculated. By weighting the actual load spectrum, the loading speed and torque for fatigue reliability testing are obtained, making the fatigue damage degree of the gearbox on the test bench equivalent to the damage under actual working conditions, thereby verifying the fatigue life reliability of the designed gearbox.

[0003] Gear fatigue testing is essential for ensuring the lifespan and reliability of gear products, and is fundamental for controlling product power density and cost. Through fatigue testing, a comprehensive and reliable basic database can be established, providing analytical design reliability, shortening development time, reducing development costs, and resolving issues related to product lifespan, reliability, and load-bearing capacity, ultimately improving product competitiveness.

[0004] During gear fatigue testing, grease needs to be added to the gearbox regularly to prevent tooth surface wear. Currently, this is done manually, which increases the workload of the testing personnel because the test cannot be interrupted. Summary of the Invention

[0005] To facilitate the application of grease to gearboxes and reduce the burden on testing personnel, this invention provides an automatic grease application device based on the dynamic operation of gears.

[0006] This invention provides an automatic grease filling device based on the dynamic operation of gears, employing the following technical solution:

[0007] An automatic grease filling device based on gear dynamic operation includes a memory, an oil pump, and a nozzle. The oil pump is connected to the memory, the nozzle is connected to the oil pump, and an injection controller is provided between the nozzle and the oil pump. The injection controller is connected to the oil pump.

[0008] The nozzle is directed toward one tooth surface of the gear, and the nozzle is provided with a steering component that can change the orientation of the nozzle so that the nozzle is directed toward the other tooth surface of the gear.

[0009] In one specific implementation, a calibration switch is also included, connected to the steering assembly, to control the steering assembly to change the orientation of the nozzle.

[0010] The gear has a calibration rod on its end face. The length direction of the calibration rod is parallel to the diameter direction of the gear. One end of the calibration rod extends radially along the gear and protrudes from the circumferential surface of the gear, so that the calibration rod can activate the calibration switch.

[0011] In one specific implementation, the fuel injection controller includes a timer connected to the calibration switch.

[0012] In one specific implementation, the steering assembly includes a mounting base, an electromagnet, and a swing arm. The swing arm is hinged to the bottom end of the mounting base. The nozzle is disposed at one end of the swing arm. The electromagnet is disposed on the mounting base. An attraction block is provided on the side of the swing arm facing the electromagnet. An elastic element is provided at the end of the swing arm away from the nozzle. One end of the elastic element is disposed on the mounting base, and the other end is disposed on the swing arm.

[0013] In one specific implementation, the elastic element is in a stretched state, and the elastic element pulls one end of the swing rod, causing the end of the swing rod with the nozzle to move away from the electromagnet.

[0014] In one specific implementation, a pressure regulating valve is provided between the nozzle and the oil pump, and the pressure regulating valve is connected to both the nozzle and the oil pump.

[0015] In one specific implementation, a metering valve is provided between the nozzle and the oil pump, and the metering valve is connected to both the nozzle and the oil pump.

[0016] In summary, the present invention has at least one of the following beneficial technical effects:

[0017] 1. By setting up oil pumps and nozzles, automatic grease spraying of gears is achieved, eliminating the need for manual grease spraying and facilitating automatic grease filling, thus reducing the burden on test personnel.

[0018] 2. Set a calibration switch and a timer, and toggle the calibration lever of the calibration switch. Each time the calibration lever contacts the calibration switch, the timer count is reset to zero, thus avoiding and reducing the cumulative error during grease spraying and improving the spraying accuracy of the grease.

[0019] 3. By setting a metering valve, the amount of grease sprayed can be controlled, thereby improving the accuracy of grease filling.

[0020] 4. By collecting data on grease filling, the amount of grease to be filled after mass production can be calculated. Attached Figure Description

[0021] Figure 1This is a schematic diagram illustrating the pipe connection structure between the oil pump and the nozzle.

[0022] Figure 2 This is a schematic diagram illustrating the connection between the calibration switch and the fuel injection controller.

[0023] Figure 3 This is a schematic diagram illustrating the structure of the steering component.

[0024] Figure 4 This is a schematic diagram illustrating the positional relationship between the nozzle and the gear.

[0025] Explanation of reference numerals in the attached drawings: 1. Memory; 2. Oil pump; 3. Injection controller; 35. Other control switches; 4. Pressure regulating valve; 5. Metering valve; 6. Nozzle; 7. Timer; 9. Calibration switch; 11. Steering assembly; 111. Swing rod; 112. Electromagnet; 113. Mounting base; 12. Spring; 13. Calibration rod; 14. Suction block. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0027] Reference Figure 1 An automatic grease dispensing device based on gear dynamic operation includes a storage container 1, an oil pump 2, and a nozzle 6. The storage container 1 is a barrel-shaped container. The oil pump 2 is connected to the storage container 1 via a pipe, and the nozzle 6 is connected to the oil pump 2 via a pipe. The oil pump 2 draws grease from the storage container 1 into the nozzle 6, which then sprays the grease onto the gear teeth. A pressure regulating valve 4 and a metering valve 5 are connected to the pipe between the nozzle 6 and the oil pump 2. During the grease drawing process, if the oil pump 2 experiences excessive pressure or pressure fluctuations in the grease, the pressure regulating valve 4 adjusts the pressure of the grease in the pipe, making the pressure more stable and facilitating control of the amount of grease sprayed, thus improving the spraying accuracy. The metering valve 5 controls the spraying pressure and the amount of grease sprayed, further improving the spraying accuracy.

[0028] Reference Figure 1 and Figure 2The automatic grease filling device also includes a grease injection controller 3, a calibration switch 9, a steering assembly 11, and a calibration lever 13. The grease injection controller 3 includes a timer 7 and other control switches 35. The timer 7 is connected to the calibration switch 9 via a signal line, and the other control switches 35 are connected to the metering valve 5 and the pressure regulating valve 4 via signal lines. Normally, both the pressure regulating valve 4 and the metering valve 5 are closed. After setting the grease spraying cycle and interval on the timer 7, the timer 7 sends a signal to the metering valve 5 and the pressure regulating valve 4, causing them to open and allowing the grease to pass through, enabling the nozzle 6 to spray the grease. When the timer 7 completes one cycle, it sends a stop signal to the grease injection controller 3. Upon receiving the stop signal, the pressure regulating valve 4 and the metering valve 5 close, stopping the grease spraying.

[0029] Reference Figure 3 and Figure 4 The correction rod 13 is fixed to the end face of the gear. The length direction of the correction rod 13 is parallel to the diameter direction of the gear, and one end of the correction rod 13 protrudes from the circumferential surface of the gear. The steering assembly 11 includes a mounting base 113, an electromagnet 112, and a swing rod 111. The electromagnet 112 is fixed to the mounting base 113, and the swing rod 111 is hinged to the bottom end of the mounting base 113. An attraction block 14 is fixed to the swing rod 111. A nozzle 6 is located at the end of the swing rod 111 near the electromagnet 112. A spring 12 is provided at the end of the swing rod 111 away from the nozzle 6. One end of the spring 12 is fixed to the swing rod 111, and the other end is fixed to the mounting base 113. The spring 12 is in a stretched state. The calibration switch 9 is specifically a toggle switch. Its two poles are connected to the two poles of the electromagnet 112. When the calibration switch 9 is toggled to one end, the electromagnet 112 is energized and becomes magnetic, attracting the attraction block 14. This causes the swing rod 111 to move closer to the electromagnet 112. At this time, the nozzle 6 faces one tooth of the gear, and the spring 12 is further stretched. When the calibration switch 9 is reset or moved to the other end, the electromagnet 112 is de-energized, losing its attraction to the attraction block 14. The spring 12 rebounds and pulls the swing rod 111 back to its original position, causing the nozzle 6 to return to its original position and face the other tooth of the gear.

[0030] The positioning of the calibration rod 13 on the gear is calibrated. The calibration switch 9 is connected to the timer 7 via a signal line. Whenever the calibration rod 13 contacts the calibration switch 9, the calibration switch 9 sends a signal to the timer 7, causing the timer 7 to reset the timing cycle, reducing the cumulative error caused by continuous use of the timer 7, and improving the spraying accuracy of the lubricating oil.

[0031] In some other embodiments, the nozzle 6 may also be made of an elastic material such as rubber, or a flexible material, so that the rotation of the gear can squeeze the nozzle 6 to adjust the orientation of the nozzle 6, so that the nozzle 6 can spray grease onto different tooth surfaces of the gear.

[0032] Since the nozzle 6 will rub against the gears during use, the nozzle 6 can be made of polyester material to extend its service life.

[0033] Meanwhile, the fuel injection controller 3 has a periodic calibration function, based on the formula:

[0034]

[0035] and

[0036]

[0037] Where T is the gear cycle, which is the time it takes for the gear to rotate one revolution;

[0038] n is the gear speed;

[0039] m is the number of teeth on the gear;

[0040] t is the injection cycle, which is the time it takes for two adjacent teeth to appear in the same position;

[0041] Automatically corrects the initial spray time and spray cycle.

[0042] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A grease automatic filling device based on the dynamic operation of a gear, characterized in that: It includes a memory (1), an oil pump (2) and a nozzle (6). The oil pump (2) is connected to the memory (1), the nozzle (6) is connected to the oil pump (2), and an injection controller (3) is provided between the nozzle (6) and the oil pump (2). The injection controller (3) is connected to the oil pump (2). The nozzle (6) faces one tooth surface of the gear, and the nozzle (6) is provided with a steering component (11). The steering component (11) can change the orientation of the nozzle (6) so that the nozzle (6) faces the other tooth surface of the gear. It also includes a calibration switch (9), which is connected to the steering assembly (11) and controls the steering assembly (11) to change the orientation of the nozzle (6). The gear has a correction rod (13) on its end face. The length direction of the correction rod (13) is parallel to the diameter direction of the gear. One end of the correction rod (13) extends radially along the gear and protrudes from the circumferential surface of the gear, so that the correction rod (13) moves the correction switch (9). The fuel injection controller (3) includes a timer (7) which is connected to the calibration switch (9); Whenever the calibration rod (13) contacts the calibration switch (9), the calibration switch (9) sends a signal to the timer (7), causing the timer (7) to reset the timing cycle.

2. The automatic grease filling device based on the dynamic operation of the gear according to claim 1, characterized in that: The steering assembly (11) includes a mounting base (113), an electromagnet (112), and a swing arm (111). The swing arm (111) is hinged to the bottom end of the mounting base (113). The nozzle (6) is disposed at one end of the swing arm (111). The electromagnet (112) is disposed on the mounting base (113). An attraction block (14) is provided on the side of the swing arm (111) facing the electromagnet (112). An elastic element is provided at the end of the swing arm (111) away from the nozzle (6). One end of the elastic element is disposed on the mounting base (113), and the other end is disposed on the swing arm (111).

3. The automatic grease filling device based on the dynamic operation of the gear according to claim 2, characterized in that: When the elastic element is in a stretched state, the elastic element pulls one end of the swing rod (111), causing the end of the swing rod (111) with the nozzle (6) to move away from the electromagnet (112).

4. The automatic lubricating grease filling device based on the dynamic operation of gears according to claim 1, characterized in that: A pressure regulating valve (4) is provided between the nozzle (6) and the oil pump (2), and the pressure regulating valve (4) is connected to both the nozzle (6) and the oil pump (2).

5. The automatic grease filling device based on gear dynamic operation according to claim 1, characterized in that: A metering valve (5) is provided between the nozzle (6) and the oil pump (2), and the metering valve (5) is connected to both the nozzle (6) and the oil pump (2).

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