Lubrication pump control method

Abstract

The application discloses a lubricating pump control method. The lubricating pump comprises a control module, a storage module and a mode selection switch. The storage module stores a plurality of lubricating control modes and a mapping relationship of a plurality of mode selection signals. The lubricating control modes are divided into internal control modes controlled by the lubricating pump itself and external control modes controlled by an external controller. The mode selection switch is electrically connected with the control module. The lubricating pump control method comprises the following steps: the control module acquires the mode selection signal triggered by the mode selection switch in real time, and switches to the corresponding lubricating control mode based on the mode selection signal which changes at present. The lubricating control mode can be easily adjusted to adapt to different lubricating requirements flexibly.

Description

Technical Field

[0001] This application relates to the field of industrial lubrication system control technology, and in particular to a lubrication pump control method. Background Technology

[0002] During the operation of mechanical equipment, the lubrication system has a crucial impact on the equipment's reliability, lifespan, and operating efficiency. Existing lubrication pump systems typically operate using pre-set lubrication control modes. For example, some systems lubricate at fixed time intervals, while others control lubricant supply through fixed lubrication cycles. However, the lubrication requirements of different mechanical equipment vary significantly, and even the same equipment may have different lubrication needs at different stages. The pre-set lubrication control modes of lubrication pump systems are generally difficult to change, usually requiring specialized technicians to reset them, making it difficult to flexibly adapt to different lubrication requirements.

[0003] Therefore, it is necessary to propose a lubrication pump control method that allows for easy adjustment of the lubrication control mode to flexibly adapt to different lubrication requirements. Summary of the Invention

[0004] This application provides a lubricating oil control method that can solve at least one of the technical problems mentioned in the background art.

[0005] In view of this, this application provides a lubricating oil control method, including: a lubricating pump including a control module, a storage module and a mode selection switch, wherein the storage module stores a mapping relationship between a number of lubrication control modes and a number of mode selection signals, the lubrication control modes are divided into an internal control mode controlled by the lubrication pump itself and an external control mode controlled by an external controller, and the mode selection switch is electrically connected to the control module; The lubrication pump control method includes: The control module acquires the mode selection signal triggered by the mode selection switch in real time and switches to the corresponding lubrication control mode based on the currently acquired and changed mode selection signal.

[0006] Optionally, the mode selection switch is an N-bit DIP switch, and the mode selection signal is an N-bit code generated by the N-bit DIP switch.

[0007] Optionally, the internal control mode includes multiple lubrication cycle control modes, each of which corresponds to a mode selection signal, and each of the lubrication cycle modes has a different set lubrication cycle. In each of the aforementioned lubrication cycle modes, the lubrication pump performs cyclic lubrication according to a set time interval; The set time interval corresponding to each of the lubrication cycle modes is obtained based on the set lubrication cycle, oil pack capacity, and single lubrication displacement.

[0008] Optionally, the external control mode includes a pulse control mode and a time control mode, and the pulse control mode and the time control mode each correspond to a mode selection signal; When the lubrication pump is in the pulse control mode, the lubrication pump performs lubrication based on the pulse control signal of the external controller; When the lubrication pump is in the time control mode, the lubrication pump continues to lubricate until the external controller cuts off the power supply to the lubrication pump.

[0009] Optionally, the lubrication pump is connected to an external power source through a power supply channel. The lubrication pump is equipped with a DC step-down module. The DC power input through the power supply channel is stepped down by the DC step-down module to power the lubrication pump. The power supply channel is equipped with a power switch controlled by the external controller. A pulse signal channel and a lubrication completion signal feedback channel are provided between the lubrication pump and the external controller. The lubrication pump is equipped with a lubrication completion detection sensor for detecting lubrication completion each time. The lubrication completion signal detected by the lubrication completion detection sensor is fed back to the control module and to the external controller through the lubrication completion signal feedback channel. When the lubrication pump is in the pulse control mode, the external controller sends a pulse control signal to the control module through the pulse signal channel. Each time the control module receives the pulse control signal, it controls the motor of the lubrication pump to perform lubrication once. After the external controller sends the pulse control signal once, it controls the motor to stop based on the received lubrication completion signal. When the lubrication pump is in the time control mode, the lubrication pump continues to lubricate until the external controller controls the power supply switch to be turned off.

[0010] Optionally, when the lubrication pump is in the time control mode, the external controller controls the power supply switch to be turned off based on the power-on duration, or the external controller determines whether the lubrication in place signal is received a set number of times within the set duration, and if the result is no, controls the power supply switch to be turned off.

[0011] Optionally, the lubrication arrival detection sensor is a reed switch, and the lubrication arrival signal is the plunger arrival signal of the motor.

[0012] Optionally, when switching the lubrication control mode, the status information of each lubrication control mode before the switch is cleared.

[0013] Optionally, in any of the lubrication control modes, control of the other lubrication control modes is disabled.

[0014] Optionally, the lubrication pump further includes an oil reservoir capacity DIP switch electrically connected to the control module. The oil reservoir capacity DIP switch can trigger multiple DIP signals. The storage module stores the mapping relationship between each DIP signal and each oil reservoir capacity. After receiving the changed DIP signal triggered by the oil reservoir capacity DIP switch, the control module updates the oil reservoir capacity information.

[0015] In this embodiment, a mode selection switch electrically connected to the control module is provided. The mode selection switch can trigger different mode selection signals. The storage module stores a mapping relationship between several lubrication control modes and several mode selection signals. The control module can switch the lubrication control mode according to the mode selection signal triggered by the mode selection switch. Therefore, this embodiment allows for easy adjustment of the lubrication control mode to flexibly adapt to different lubrication needs. Attached Figure Description

[0016] Figure 1 This is a schematic block diagram illustrating the control relationship of the lubrication pump in an embodiment of this application.

[0017] Figure 2 This is a flowchart of the lubrication pump control method according to an embodiment of this application.

[0018] Figure 3 This is a three-dimensional structural diagram of the lubrication pump according to an embodiment of this application.

[0019] Figure 4 This is a three-dimensional structural diagram of the lubrication pump after the hidden part of the structure in the embodiment of this application.

[0020] Figure 5 This is a three-dimensional structural diagram of another hidden part of the lubrication pump in an embodiment of this application.

[0021] Figure 6 This is an exploded structural diagram of the lubrication pump hidden portion according to an embodiment of this application.

[0022] Figure 7 This is a schematic block diagram of a lubrication pump, an external controller, and an external power supply, etc., according to an embodiment of this application.

[0023] Figure 8 This is a schematic diagram showing the correspondence between the DIP switch values ​​and the lubrication control modes in an embodiment of this application. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] Please see Figures 1 to 8 This application discloses a lubrication pump control method. The lubrication pump 1 includes a control module 11, a storage module 12, and a mode selection switch 13. The storage module 12 stores a mapping relationship between several lubrication control modes and several mode selection signals. The lubrication control modes are divided into an internal control mode controlled by the lubrication pump 1 itself (based on the control module 11) and an external control mode controlled by an external controller 2 (usually a PLC). The mode selection switch 13 is electrically connected to the control module 11.

[0026] Lubrication pump control methods include: S1, the control module 11 acquires the mode selection signal triggered by the mode selection switch 13 in real time; S2, the control module 11 switches to the corresponding lubrication control mode based on the currently acquired changed mode selection signal. That is, the control module 11 matches the currently detected mode selection signal with the internally latched mode selection signal. If they match, the current lubrication control mode is maintained; if they do not match, the control module 11 switches to the lubrication control mode mapped to the currently detected mode selection signal.

[0027] When the lubrication control mode is external control mode, the control module 11 will send the mode switching information to the external controller 2. The external controller 2 will control the lubrication of the lubrication pump 1 based on the set principles, such as continuous lubrication within a set time (after the mode switch, the lubrication pump 1 can directly enter the continuous lubrication state and be stopped by the external controller 2) or pulse control lubrication, etc.

[0028] Understandably, the state of mode selection switch 13 is constantly monitored in any lubrication control mode to obtain the mode selection signal in real time. This can be detected by activating the watchdog timer.

[0029] In some cases, if the lubrication pump 1 is running (motor is rotating, single cycle not completed), it can wait for the current running cycle to complete (normal shutdown / fault shutdown are both considered complete) before entering the new mode; if the lubrication pump 1 is in intermittent waiting / standby state (motor stopped, green light flashing in waiting), it can enter the new mode immediately; if the lubrication pump 1 is in continuous running mode, the motor 14 should be stopped immediately before entering the new mode.

[0030] In this embodiment, a mode selection switch 13 electrically connected to the control module 11 is provided. The mode selection switch 13 can trigger different mode selection signals. The storage module 12 stores a mapping relationship between several lubrication control modes and several mode selection signals. The control module 11 can switch the lubrication control mode according to the mode selection signal triggered by the mode selection switch 13. Therefore, this embodiment allows for easy adjustment of the lubrication control mode to flexibly adapt to different lubrication needs.

[0031] In some embodiments, the mode selection switch 13 is an N-bit DIP switch, and the mode selection signal is an N-bit code generated by the N-bit DIP switch.

[0032] In this specific example, mode selection switch 13 is a 4-bit DIP switch, and the mode selection signal is 4-bit encoded. Please refer to [link / reference]. Figure 8 It provides multiple mode selection signals, namely: 00001, 0010, 0011, 1100, 1111, etc.

[0033] In some embodiments, the internal control mode includes multiple lubrication cycle control modes, each lubrication cycle control mode corresponds to a mode selection signal, and each lubrication cycle mode has a different set lubrication cycle. In each lubrication cycle mode, lubrication pump 1 performs cyclic lubrication according to a set time interval; The set time interval for each lubrication cycle mode is obtained based on the set lubrication cycle, oil pack capacity, and single lubrication displacement.

[0034] With the above settings, when the user needs to switch from other lubrication control modes to lubrication cycle control modes, or from one lubrication cycle control mode to another, or from one lubrication cycle control mode to a non-lubrication cycle control mode, they only need to operate the mode selection switch 13 to trigger the corresponding mode selection signal, and then switch to the corresponding lubrication control mode.

[0035] Please combine Figure 8 It provides a one-to-one correspondence between multiple mode selection signals triggered by the DIP switch and multiple lubrication cycles. Specifically, 0001 corresponds to 0.5 months, 0010 to 1 month, 0011 to 2 months, 0100 to 3 months, 0101 to 6 months, and 0110 to 12 months. Assuming a lubrication cycle of 2 months, an oil tank capacity of 500ml, and a lubrication displacement of 0.25ml per cycle, a total of 2000 lubrication cycles can be completed. The time interval is set based on averaging the 2000 lubrication cycles to be completed in 2 months. When the lubrication cycle is changed to 3 months, the time interval is set based on averaging the 2000 lubrication cycles to be completed in 3 months.

[0036] In addition, when different capacity oil packs 10 can be replaced, the lubrication cycle can also be adjusted as needed. For example, when replacing the 500ml oil pack 10 with a 250ml oil pack 10, if the same lubrication time interval is to be maintained, the lubrication cycle needs to be adjusted. This can be done by triggering the corresponding mode selection signal through the mode selection switch 13, and then switching to the corresponding lubrication cycle control mode.

[0037] Specifically, in internal control mode, after each lubrication operation by the motor 14, the control module 11 receives a lubrication completion signal from the lubrication completion detection sensor 15 and controls the motor 14 to stop based on the lubrication completion signal. If no lubrication completion signal is received, the module continues to collect data in a loop until the timeout period ends, at which point an alarm can be triggered.

[0038] In some embodiments, the external control modes include a pulse control mode and a time control mode, each corresponding to a mode selection signal. When the lubrication pump 1 is in pulse control mode, it lubricates based on the pulse control signal from the external controller 2. When the lubrication pump 1 is in time control mode, it continues to lubricate until the external controller 2 cuts off the power supply to the lubrication pump 1. That is, once the time control mode is entered, the lubrication pump 1 will continue to lubricate, and the motor 14 will always run. Once the set conditions are met, the external controller 2 will cut off the power supply.

[0039] Please combine Figure 8 It also provides the correspondence between the mode selection signals triggered by the DIP switches and the pulse control mode and time control mode. Specifically, 1100 corresponds to the pulse control mode, and 1111 corresponds to the time control mode. Additionally, Figure 8 The code 0000 corresponds to power off, meaning that the lubrication pump 1 can be turned off using this DIP switch. However, the status of the DIP switch will be monitored in real time during this state.

[0040] In some embodiments, the lubrication pump 1 is connected to an external power source 3 through a power supply channel 20. The lubrication pump 1 is equipped with a DC step-down module. The DC power input to the power supply channel 20 is stepped down by the DC step-down module to power the lubrication pump 1. The power supply channel 20 is equipped with a power switch 21 controlled by an external controller 2.

[0041] Specifically, the stepped-down DC power supplies the motor 14 of the lubrication pump 1 and other devices that require power. The power switch 21 may include a relay, etc.

[0042] Specifically, the external power supply 3 is 24V, and the voltage after being stepped down by the DC buck module is 4.5V, but it is not limited to this.

[0043] Please combine Figure 5 andFigure 6 The power supply channel 20 includes the power supply line therein.

[0044] Specifically, when the lubrication pump 1 is in time control mode, the lubrication pump 1 continues to lubricate until the external controller 2 controls the power supply switch 21 to be disconnected.

[0045] Furthermore, when the lubrication pump 1 is in time control mode, the external controller 2 can control the power supply switch 21 to disconnect based on the power-on duration. That is, when switching to time control mode via mode selection switch 13, after receiving notification from control module 11, the external controller 2 will manage the power supply based on the preset power-on duration, and when the power-on duration is reached, it will control the power supply switch 21 to disconnect.

[0046] Furthermore, when the lubrication pump 1 is in time control mode, the external controller 2 determines whether a set number of lubrication completion signals have been received within a set time period. If the result is negative, it controls the power supply switch 21 to disconnect. For example, normally, a lubrication completion signal is received once every 10 seconds. The external controller 2 can be set to detect an abnormal signal if 10 lubrication completion signals are not received within 120 seconds. In this case, the power supply switch 21 can be disconnected, and an alarm can be triggered.

[0047] In some embodiments, a pulse signal channel 30 and a lubrication completion signal feedback channel 40 are provided between the lubrication pump 1 and the external controller 2. The lubrication pump 1 is provided with a lubrication completion detection sensor 15 for detecting each lubrication completion. The lubrication completion signal detected by the lubrication completion detection sensor 15 is fed back to the control module 11 and to the external controller 2 through the lubrication completion signal feedback channel 40.

[0048] Specifically, the lubrication positioning sensor 15 is a reed switch, and the lubrication positioning signal is the piston positioning signal of the motor 14 detected by the reed switch.

[0049] Please combine Figure 5 and Figure 6 The pulse signal channel 30 and the lubrication completion signal feedback channel 40 respectively include a pulse signal line and a feedback signal line.

[0050] In some embodiments, when the lubrication pump 1 is in pulse control mode, the external controller 2 sends a pulse control signal to the control module 11 through the pulse signal channel 30. Each time the control module 11 receives a pulse control signal, it controls the motor 14 of the lubrication pump 1 to perform one lubrication cycle. After each pulse control signal is sent, the external controller 2 controls the motor 14 to stop based on the received lubrication completion signal. Then, it waits for the next lubrication cycle to begin.

[0051] Specifically, after matching the pulse control mode via mode selection switch 13, the system can automatically execute one complete lubrication cycle upon first power-on, and then enter standby mode. It scans external pulse control signals in real time, and a single pulse control signal triggers one complete lubrication cycle. During the cycle, new pulse inputs are blocked, and the detection and protection of lubrication completion signals are performed synchronously throughout the process. After the cycle ends, the blocking is removed, and the system returns to standby mode, waiting for the next pulse trigger.

[0052] Specifically, the short pulse input to the external controller 2 is a pulse control signal, and the long pulse is a power-off signal.

[0053] In a specific example, the lubrication pump 1 is provided with a first circuit board 17 and a second circuit board 18. The control module 11 and the storage module 12 are located on the first circuit board 17, and the DC step-down module is located on the second circuit board 18. The lubrication pump 1 is provided with a first set of power lines 22 and a second set of power lines 23, a first set of pulse signal lines 32 and a second set of pulse signal lines 33. The first set of power lines 22 is connected to the external input current (through the third set of power lines 24) and input to the DC step-down module. The second set of power lines 23 is connected between the second circuit board 18 and the first circuit board 17 and is used to connect the stepped-down DC power. The first set of pulse signal lines 32 is connected to the external pulse signal (through the third set of pulse signal lines 34) and is transmitted to the second set of pulse signal lines 33 after being converted by the second circuit board 18, and finally transmitted to the control module 11 on the first circuit board 17. The lubrication feedback signal triggered by the reed switch is transmitted to the second circuit board 18 via the first set of feedback signal lines 41. After being converted by the second circuit board 18, it is transmitted to the external controller 2 via the second set of feedback signal lines 42 (via the third set of feedback signal lines 43) and to the control module 11 via the fourth set of feedback signal lines 50.

[0054] In some embodiments, when switching lubrication control modes, the status information of each lubrication control mode before the switch is cleared.

[0055] Specifically, the status information can include all timing, alarm status, pulse shielding, and LED status to avoid residual status from old modes.

[0056] In some embodiments, under any lubrication control mode, control of other lubrication control modes is disabled.

[0057] In some embodiments, the lubrication pump 1 further includes an oil reservoir capacity DIP switch 19 electrically connected to the control module 11. The oil reservoir capacity DIP switch 19 can trigger multiple DIP signals. The storage module 12 stores the mapping relationship between each DIP signal and each oil reservoir capacity. After receiving a changed DIP signal triggered by the oil reservoir capacity DIP switch 19, the control module 11 updates the oil reservoir capacity information. With this setting, when the oil reservoir 10 is replaced, the corresponding DIP signal can be directly triggered by the oil reservoir capacity DIP switch 19, thereby updating the oil reservoir capacity corresponding to the currently received DIP signal to the latest oil reservoir capacity and locking it.

[0058] For example, when the DIP switch signal is 00, the corresponding fuel pack capacity is 125ml; when the DIP switch signal is 01, the corresponding fuel pack capacity is 250ml; and when the DIP switch signal is 10, the corresponding fuel pack capacity is 500ml.

[0059] The above-disclosed examples are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall fall within the scope of this application.

Claims

1. A lubrication pump control method, characterized in that, The lubrication pump includes a control module, a storage module, and a mode selection switch. The storage module stores a mapping relationship between several lubrication control modes and several mode selection signals. The lubrication control modes are divided into an internal control mode controlled by the lubrication pump itself and an external control mode controlled by an external controller. The mode selection switch is electrically connected to the control module. The lubrication pump control method includes: The control module acquires the mode selection signal triggered by the mode selection switch in real time and switches to the corresponding lubrication control mode based on the currently acquired and changed mode selection signal.

2. The lubrication pump control method according to claim 1, characterized in that, The mode selection switch is an N-bit DIP switch, and the mode selection signal is an N-bit code generated by the N-bit DIP switch.

3. The lubrication pump control method according to claim 1 or 2, characterized in that, The internal control mode includes multiple lubrication cycle control modes, each of which corresponds to a mode selection signal, and each of the lubrication cycle modes has a different set lubrication cycle. In each of the aforementioned lubrication cycle modes, the lubrication pump performs cyclic lubrication according to a set time interval; The set time interval corresponding to each of the lubrication cycle modes is obtained based on the set lubrication cycle, oil pack capacity, and single lubrication displacement.

4. The lubrication pump control method according to claim 1 or 2, characterized in that, The external control mode includes a pulse control mode and a time control mode, and the pulse control mode and the time control mode each correspond to a mode selection signal; When the lubrication pump is in the pulse control mode, the lubrication pump performs lubrication based on the pulse control signal of the external controller; When the lubrication pump is in the time control mode, the lubrication pump continues to lubricate until the external controller cuts off the power supply to the lubrication pump.

5. The lubrication pump control method according to claim 4, characterized in that, The lubrication pump is connected to an external power source through a power supply channel. The lubrication pump is equipped with a DC step-down module. The DC power input through the power supply channel is stepped down by the DC step-down module to power the lubrication pump. The power supply channel is equipped with a power switch controlled by the external controller. A pulse signal channel and a lubrication completion signal feedback channel are provided between the lubrication pump and the external controller. The lubrication pump is equipped with a lubrication completion detection sensor for detecting lubrication completion each time. The lubrication completion signal detected by the lubrication completion detection sensor is fed back to the control module and to the external controller through the lubrication completion signal feedback channel. When the lubrication pump is in the pulse control mode, the external controller sends a pulse control signal to the control module through the pulse signal channel. Each time the control module receives the pulse control signal, it controls the motor of the lubrication pump to perform lubrication once. After the external controller sends the pulse control signal once, it controls the motor to stop based on the received lubrication completion signal. When the lubrication pump is in the time control mode, the lubrication pump continues to lubricate until the external controller controls the power supply switch to be turned off.

6. The lubrication pump control method according to claim 5, characterized in that, When the lubrication pump is in the time control mode, the external controller controls the power supply switch to be turned off based on the power-on duration, or the external controller determines whether the lubrication in place signal has been received a set number of times within the set duration. If the result is no, the external controller controls the power supply switch to be turned off.

7. The lubrication pump control method according to claim 5, characterized in that, The lubrication status detection sensor is a reed switch, and the lubrication status signal is the plunger status signal of the motor.

8. The lubrication pump control method according to claim 1, characterized in that, When switching the lubrication control mode, the status information of each lubrication control mode before the switch is cleared.

9. The lubrication pump control method according to claim 1, characterized in that, In any of the lubrication control modes, control of the other lubrication control modes is disabled.

10. The lubrication pump control method according to claim 1, characterized in that, The lubrication pump also includes an oil tank capacity DIP switch electrically connected to the control module. The oil tank capacity DIP switch can trigger multiple DIP signals. The storage module stores the mapping relationship between each DIP signal and each oil tank capacity. After receiving the changed DIP signal triggered by the oil tank capacity DIP switch, the control module updates the oil tank capacity information.

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