Automatic lubricating device for synchronous conveying chain

Abstract

This utility model relates to the technical field of automatic lubrication devices for synchronous conveyor chains, and in particular to an automatic lubrication device for synchronous conveyor chains, comprising: an oil storage unit, an electrically controlled metering pump, an oil guide pipeline, an atomizing nozzle, a control module, and an infrared sensor group; the oil storage unit is equipped with an electrically controlled metering pump at its bottom; the oil guide pipeline connects the electrically controlled metering pump and the atomizing nozzle; the control module has a built-in microprocessor and is electrically connected to the electrically controlled metering pump; the infrared sensor group is disposed on both sides of the synchronous conveyor chain feed path and is signal-connected to the control module; the atomizing nozzle is mounted on both sides of the synchronous conveyor chain via an adjustable angle bracket, with the nozzle axis forming a 30-45° angle with the chain roller axis.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic lubrication devices for synchronous conveyor chains, and in particular to an automatic lubrication device for synchronous conveyor chains. Background Technology

[0002] In industrial conveyor systems, the lubrication and maintenance of synchronous conveyor chains directly affect equipment operating efficiency and service life. Traditional lubrication methods mostly employ manual oiling or fixed-cycle automatic lubrication, which have the following drawbacks: Insufficient lubrication precision: Manual operation makes it difficult to accurately control the amount of oil, easily leading to oil waste or insufficient lubrication, resulting in abnormal chain wear; Poor real-time performance: Fixed-cycle lubrication cannot adapt to changes in chain speed, resulting in insufficient lubrication at high speeds and excessive oil accumulation at low speeds; Structural defects: Existing automatic lubrication devices mostly use direct-injection nozzles, making it difficult for lubricating oil to penetrate to the meshing parts of the chain rollers and chain plates, and the fixed nozzle angle leads to uneven lubrication; Lack of monitoring: The lack of real-time monitoring of chain operation status makes it impossible to dynamically adjust lubrication strategies, resulting in weak fault early warning capabilities; Difficult maintenance: Poor sealing of the oil storage unit easily contaminates the lubricating oil, the scale of the pipeline regulating valve is unclear, and oil quantity adjustment relies on experience-based operation. Utility Model Content

[0003] To overcome the shortcomings of existing systems, this invention provides an automatic lubrication device for synchronous conveyor chains.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an automatic lubrication device for a synchronous conveyor chain, comprising: an oil storage unit, an electrically controlled metering pump, an oil guide pipe, an atomizing nozzle, a control module, and an infrared sensor group; the oil storage unit is equipped with an electrically controlled metering pump at its bottom; the oil guide pipe connects the electrically controlled metering pump and the atomizing nozzle; the control module has a built-in microprocessor and is electrically connected to the electrically controlled metering pump; the infrared sensor group is set on both sides of the synchronous conveyor chain's feed path and is signal-connected to the control module; the atomizing nozzle is installed on both sides of the synchronous conveyor chain via an adjustable angle bracket, with the nozzle axis forming a 30-45° angle with the chain roller axis.

[0005] According to another embodiment of the present invention, the infrared sensor group further includes an optical encoder and a Hall effect sensor, which respectively detect the chain running speed and the position of the chain link.

[0006] According to another embodiment of the present invention, the oil guide line is further provided with a visible oil volume regulating valve in the middle section, and the regulating valve includes a precision needle valve structure with a scale display.

[0007] According to another embodiment of the present invention, the atomizing nozzles are further provided in three sets at intervals along the traveling direction of the synchronous conveying chain, corresponding to the chain engagement section, the intermediate bearing section and the engagement section respectively.

[0008] According to another embodiment of the present invention, the oil storage unit is further provided with a breather valve with a filter screen at the top, a quick-change oil cup connected to the bottom, a transparent observation window on the side wall, and an integrated liquid level sensor connected to an audible and visual alarm.

[0009] According to another embodiment of the present invention, the adjustable angle bracket adopts a universal ball joint structure and is equipped with a butterfly locking nut with anti-loosening function.

[0010] According to another embodiment of this utility model, the control module further includes: a microprocessor, a power management unit, a signal processing unit, a drive unit, a communication interface unit, a storage unit, and an alarm output unit; the power management unit converts the input power into multiple DC voltage outputs, including a 24V DC bus, an 11V regulated output, and a 5V / 3.3V precision power supply, with each voltage output terminal equipped with a fuse protector; the signal processing unit is connected to an infrared sensor group via a shielded cable and includes a photoelectric encoding signal conditioning circuit, a Hall signal amplification circuit, and an analog-to-digital conversion module; the drive unit is connected to an electrically controlled quantitative pump via a PWM pulse line, employing an optocoupler-isolated drive circuit and integrating the pump. The system includes a controlled MOSFET array, a freewheeling diode protection circuit, and a current feedback loop. The communication interface unit integrates a dual-mode RS-485 and CAN bus interface, an industrial Ethernet module, and a wireless transmission module, with electrical signal isolation achieved through an isolation transformer. The storage unit connects to the microprocessor via an SPI bus to store lubrication parameters and historical data. The alarm output unit connects to the audible and visual alarm drive circuit. The microprocessor connects to the signal processing unit via an I²C bus and to the drive unit and alarm output unit via GPIO ports. A star topology wiring structure is used between the functional units, key signal lines are shielded with twisted-pair cables, and connectors use IP67-rated aviation plugs.

[0011] The beneficial effects of this utility model are:

[0012] 1. Precise lubrication control: The chain speed and link position are collected in real time by an infrared sensor group, and the pulse frequency of the electronically controlled quantitative pump is dynamically adjusted by the microprocessor of the control module to achieve precise matching between the amount of lubricating oil and the chain running status.

[0013] 2. High-efficiency atomization and penetration: The atomizing nozzle is aligned with the chain roller axis at an angle of 30-45° (and in conjunction with three sets of nozzles set along the chain travel direction, so that the lubricating oil mist covers the meshing section, the bearing section and the meshing section, thereby improving the lubrication efficiency;

[0014] 3. Intelligent monitoring and protection: The control module integrates a signal processing unit and a current feedback loop to monitor the operating current of the electronically controlled metering pump in real time. In case of abnormality, it triggers an audible and visual alarm. The oil storage unit achieves dual monitoring of oil quantity through a liquid level sensor and a transparent observation window, and automatically alarms when oil is low.

[0015] 4. Modular and stable design: The power management unit provides multi-level isolation voltage (24V / 12V / 5V / 3.3V) and is equipped with fuse protection to ensure that the high-power pump body and precision control circuit work together. The communication interface unit supports wired (RS-485 / CAN / Ethernet) and wireless (Wi-Fi / Bluetooth) dual-mode communication, and is compatible with factory IoT systems.

[0016] 5. Improved ease of maintenance: The quick-change oil cup and the breather valve with filter enable rapid oil changes and pressure balance, shortening maintenance time. The visible oil volume regulating valve in the oil guide line is equipped with a precision needle valve structure, allowing operators to intuitively adjust the flow rate.

[0017] 6. Interference Resistance and Durability: The star topology wiring structure and twisted-pair shielded cable reduce electromagnetic interference, and the signal transmission bit error rate is <10⁻ 6 The drive unit uses optocoupler isolation and freewheeling diode protection circuit to avoid damage to the control circuit by pump start-up and shutdown surges. The universal ball joint of the adjustable angle bracket and the anti-loosening locking nut ensure long-term stability of the nozzle position. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is the electrical connection diagram of this utility model;

[0021] Figure 3 This is a schematic diagram of the oil storage unit;

[0022] Figure 4 This is a schematic diagram of the structure of an atomizing spray.

[0023] In the diagram: 1. Oil storage unit; 2. Electrically controlled metering pump; 3. Oil guide pipeline; 4. Atomizing nozzle; 5. Control module; 5-1. Microprocessor; 5-2. Power management unit; 5-3. Signal processing unit; 5-4. Drive unit; 5-5. Communication interface unit; 5-6. Storage unit; 5-7. Alarm output unit; 6. Infrared sensor group; 7. Adjustable angle bracket; 8. Synchronous conveying chain; 9. Visual oil volume regulating valve; 10. Breathing valve; 11. Quick-change oil cup; 12. Transparent observation window; 13. Liquid level sensor; 14. Audible and visual alarm. Detailed Implementation

[0024] like Figure 1 This is a schematic diagram of the structure of this utility model, an automatic lubrication device for a synchronous conveyor chain, including: an oil storage unit 1, an electrically controlled metering pump 2, an oil guide pipe 3, an atomizing nozzle 4, a control module 5, and an infrared sensor group 6; the oil storage unit 1 is equipped with the electrically controlled metering pump 2 at its bottom; the oil guide pipe 3 connects the electrically controlled metering pump 2 and the atomizing nozzle 4; the control module 5 has a built-in microprocessor 5-1 and is electrically connected to the electrically controlled metering pump 2; the infrared sensor group 6 is set on both sides of the synchronous conveyor chain 8 along its path and is signal-connected to the control module 5; the atomizing nozzle 4 is installed on both sides of the synchronous conveyor chain 8 via an adjustable angle bracket 7, with the nozzle axis forming a 30-45° angle with the chain roller axis.

[0025] According to another embodiment of the present invention, the infrared sensor group 6 further includes a photoelectric encoder and a Hall effect sensor, which respectively detect the chain running speed and the position of the chain link.

[0026] According to another embodiment of the present invention, the oil guide pipe 3 is further provided with a visible oil volume regulating valve 9 in the middle section, and the regulating valve 9 includes a precision needle valve structure with a scale display.

[0027] According to another embodiment of the present invention, the atomizing nozzles 4 are arranged in three groups at intervals along the traveling direction of the synchronous conveying chain 8, respectively corresponding to the chain engagement section, the intermediate bearing section and the engagement section.

[0028] According to another embodiment of the present invention, the oil storage unit 1 is further provided with a breather valve 10 with a filter screen at the top, a quick-change oil cup 11 at the bottom, a transparent observation window 12 on the side wall, and an integrated liquid level sensor 13 connected to an audible and visual alarm 14.

[0029] According to another embodiment of the present invention, the adjustable angle bracket 7 is further comprising a universal ball joint structure, and a butterfly locking nut with anti-loosening function.

[0030] According to another embodiment of the present invention, the control module 5 further includes: a microprocessor 5-1, a power management unit 5-2, a signal processing unit 5-3, a drive unit 5-4, a communication interface unit 5-5, a storage unit 5-6, and an alarm output unit 5-7; the power management unit 5-2 converts the input power into multiple DC voltage outputs, including a 24V DC bus, an 11V regulated output, and a 5V / 3.3V precision power supply, with each voltage output terminal equipped with a fuse protector; the signal processing unit 5-3 is connected to the infrared sensor group 6 via a shielded cable and includes a photoelectric encoding signal conditioning circuit, a Hall signal amplification circuit, and an analog-to-digital conversion module; the drive unit 5-4 is connected to the electrically controlled quantitative pump 2 via a PWM pulse line and uses an optocoupler-isolated drive circuit. The system integrates a pump-controlled MOSFET array, a freewheeling diode protection circuit, and a current feedback loop. The communication interface unit 5-5 integrates a dual-mode interface for RS-485 and CAN bus, an industrial Ethernet module, and a wireless transmission module, and achieves electrical signal isolation through an isolation transformer. The storage unit 5-6 is connected to the microprocessor 5-1 via an SPI bus to store lubrication parameters and historical data. The alarm output unit 5-7 is connected to the driving circuit of the audible and visual alarm 14. The microprocessor 5-1 is connected to the signal processing unit 5-3 via an I²C bus, and to the driving unit 5-4 and the alarm output unit 5-7 via GPIO ports. The functional units adopt a star topology wiring structure, key signal lines are shielded with twisted-pair cables, and connectors use aviation plugs with IP67 protection rating.

[0031] In the specific operation process, the adjustable angle bracket 7 is fixed to the frame on both sides of the conveyor chain 8, and the axis of the atomizing nozzle 4 is adjusted to form an angle of 30-45° with the axis of the chain roller. The butterfly lock nut is tightened to prevent loosening. Three sets of atomizing nozzles 4 are installed along the chain travel direction, respectively aligned with the meshing section, the intermediate bearing section, and the meshing exit section. The oil guide pipe 3 is connected to the outlet end of the electronically controlled quantitative pump 2, and a visual oil quantity regulating valve 9 with a scale display is installed in the middle section, with the initial opening set to the middle position. The photoelectric encoder and Hall effect sensor of the infrared sensor group 6 are connected to the signal processing unit 5-3 of the control module 5 through a shielded cable. The electronically controlled quantitative pump 2 is connected to the pump control MOS transistor array of the drive unit 5-4 using an AWG12 wire, ensuring that the wiring terminals are firmly crimped. The RS-485 / CAN bus of the communication interface unit 5-5 is connected to the factory control network through an aviation plug, and the wireless transmission module is paired with the monitoring terminal. Inject the specified type of lubricating oil into the oil storage unit 1 up to the MAX mark on the transparent observation window 12; tighten the breather valve 10 with filter to ensure pressure balance inside and outside the oil storage unit; when installing the quick-change oil cup 11, press the buckle to the locked position and confirm that the sealing ring is not deformed. Input the following parameters through the touch screen or wireless terminal of the control module 5: chain rated speed, basic lubrication amount, and intermittent lubrication threshold. Start the self-test mode of the infrared sensor group 6, manually push the chain 8 to run one pitch, and confirm that the Hall effect sensor accurately captures the position of the chain link; optimize the photoelectric encoder signal waveform through the gain adjustment knob of the signal processing unit 5-3 to ensure that the speed detection error is <±1%. Select Modbus-TCP or Bluetooth protocol in the communication interface unit 5-5, set the device's unique ID and IP address; upload the lubrication parameters to the storage unit 5-6 and enable the data backup function. When the power switch is closed, the power management unit 5-2 of the control module 5 outputs 24V (pump power supply), 12V (nozzle solenoid valve), and 5V (control circuit) voltages. Observe the status indicator light of the microprocessor 5-1 to confirm that the system self-test has passed (green light is always on). When the chain 8 starts running, the infrared sensor group 6 feeds back speed and position signals to the signal processing unit 5-3 in real time. The microprocessor 5-1 sends PWM pulses to the electronically controlled quantitative pump 2 through the drive unit 5-4 according to the preset speed-oil quantity curve. The lubricating oil is delivered to the atomizing nozzle 4 through the oil guide pipe 3, forming an oil mist with a particle size of 30-50μm to cover the chain meshing area. When the liquid level sensor 13 detects that the oil quantity is lower than the MIN mark, the alarm output unit 5-7 triggers the red light of the audible and visual alarm 14 to flash. If the current feedback loop 5-4c detects that the pump operating current exceeds the limit, it immediately cuts off the drive signal and sends a fault code to the monitoring terminal.

[0032] The above description is illustrative only and not restrictive of this utility model. Those skilled in the art will understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the appended claims, and all such modifications, variations or equivalents will fall within the protection scope of this utility model.

Claims

1. A synchronous conveying chain automatic lubrication device, comprising: The oil storage unit (1), the electric metering pump (2), the oil guide line (3), the atomizing nozzle (4), the control module (5), and the infrared sensor group (6) are provided. The bottom of the oil storage unit (1) is equipped with the electric metering pump (2). The oil guide line (3) connects the electric metering pump (2) and the atomizing nozzle (4). The control module (5) has a built-in microprocessor (5-1) and is electrically connected to the electric metering pump (2). The infrared sensor group (6) is set on both sides of the synchronous conveying chain (8) and is connected to the control module (5) by signal. The atomizing nozzle (4) is installed on both sides of the synchronous conveying chain (8) through the adjustable angle bracket (7), and the nozzle axis is at an angle of 30-45° with the chain roller axis.

2. The apparatus according to claim 1, wherein The infrared sensor group (6) includes a photoelectric encoder and a Hall effect sensor, which respectively detect the chain running speed and the position of the chain link.

3. The lubricating device for a synchronous conveying chain according to claim 1, characterized in that, The middle section of the oil guide line (3) is provided with a visible oil volume regulating valve (9), which includes a precision needle valve structure with a scale display.

4. The lubricating device for a synchronous conveying chain according to claim 1, characterized in that, The atomizing nozzles (4) are arranged in three sets at intervals along the traveling direction of the synchronous conveying chain (8), corresponding to the chain engagement section, intermediate bearing section and engagement section respectively.

5. The lubricating device for a synchronous conveying chain according to claim 1, characterized in that, The oil storage unit (1) is equipped with a breather valve (10) with a filter screen at the top, a quick-change oil cup (11) at the bottom, a transparent observation window (12) on the side wall, and an integrated liquid level sensor (13) and connected to an audible and visual alarm (14).

6. The automatic lubrication device for synchronous conveyor chains according to claim 1, characterized in that, The adjustable angle bracket (7) adopts a universal ball joint structure and is equipped with a butterfly locking nut with anti-loosening function.

7. The automatic lubrication device for synchronous conveyor chains according to any one of claims 1-6, characterized in that, The control module (5) includes: a microprocessor (5-1), a power management unit (5-2), a signal processing unit (5-3), a drive unit (5-4), a communication interface unit (5-5), a storage unit (5-6), and an alarm output unit (5-7); the power management unit (5-2) converts the input power into multiple DC voltage outputs, including a 24V DC bus, an 11V regulated output, and a 5V / 3.3V precision power supply, with each voltage output terminal equipped with a fuse protector; the signal processing unit (5-3) is connected to the infrared sensor group (6) via a shielded cable, and includes a photoelectric encoding signal conditioning circuit, a Hall signal amplification circuit, and an analog-to-digital conversion module; the drive unit (5-4) is connected to the electrically controlled quantitative pump (2) via a PWM pulse line, and adopts an optocoupler isolated drive circuit, integrating pump control MO The system includes an S-tube array, a freewheeling diode protection circuit, and a current feedback loop; the communication interface unit (5-5) integrates a dual-mode interface of RS-485 and CAN bus, an industrial Ethernet module, and a wireless transmission module, and achieves electrical isolation of the signal through an isolation transformer; the storage unit (5-6) is connected to the microprocessor (5-1) via the SPI bus to store lubrication parameters and historical data; the alarm output unit (5-7) is connected to the drive circuit of the audible and visual alarm (14); the microprocessor (5-1) is connected to the signal processing unit (5-3) via the I²C bus, and to the drive unit (5-4) and the alarm output unit (5-7) via the GPIO port. The functional units adopt a star topology wiring structure, the key signal lines are shielded with twisted pairs, and the connectors use aviation plugs with IP67 protection level.

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