Pressure real-time monitoring and temperature control device of vertical crusher

Abstract

The utility model relates to a vertical crusher's pressure real -time monitoring and temperature control device, it includes: pressure real -time monitoring module is used for detecting the real -time pressure signal of bearing, the power regulation module of heat dissipation fan is used for dynamic adjustment heat dissipation fan's power, control and data processing module is used for receiving pressure signal and calculates corresponding fan power regulation instruction, the output of pressure real -time monitoring module and temperature monitoring module is connected to the input of control and data processing module respectively, and the output of control and data processing module is connected to the power regulation module of heat dissipation fan, to realize the dynamic heat dissipation control based on bearing pressure, the utility model discloses through pressure signal directly reflects the instantaneous load of bearing, and adjusts fan power in advance accordingly, thereby breaks through the hysteresis limit of traditional temperature control, not only has promoted the stability of bearing working condition, still reduced the energy consumption through the heat dissipation on demand, realizes more accurate, efficient dynamic temperature control.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, specifically to a real-time pressure monitoring and temperature control device for a vertical crusher. Background Technology

[0002] Vertical shaft impact crushers are widely used in mining, building materials, and other industries. Their core component, the bearing, endures immense mechanical pressure and frictional heat during high-speed operation, making it susceptible to lubrication failure, material fatigue, and even equipment damage due to overheating. Traditional heat dissipation control methods typically employ fixed-power cooling fans or simple temperature control strategies, failing to dynamically adjust heat dissipation efficiency based on the actual load conditions of the bearing. This results in problems such as lag in response, high energy consumption, or insufficient heat dissipation. Currently, bearing temperature control largely relies on independent temperature sensor feedback, but temperature changes are lag-dependent, making it difficult to promptly reflect the thermal load impact caused by sudden pressure changes. Furthermore, relying solely on temperature feedback may lead to frequent fan start-stops or prolonged high-power operation, reducing equipment lifespan and wasting energy. Utility Model Content

[0003] This invention provides a real-time pressure monitoring and temperature control device for a vertical crusher, which combines real-time bearing pressure monitoring with dynamic adjustment of cooling fan power. The device directly reflects the instantaneous load of the bearing through pressure signals and adjusts the fan power accordingly, thereby overcoming the lag limitation of traditional temperature control. This not only improves the stability of bearing operation but also reduces energy consumption through on-demand heat dissipation, achieving more precise and efficient dynamic temperature control and providing a new approach for the intelligent operation and maintenance of vertical crushers.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pressure real-time monitoring and temperature control device for a vertical crusher, comprising: a pressure real-time monitoring module for detecting the real-time pressure signal of the bearing; a temperature monitoring module for detecting the real-time temperature of the bearing; a cooling fan power adjustment module for dynamically adjusting the power of the cooling fan; and a control and data processing module for receiving the pressure signal and calculating the corresponding fan power adjustment command. The output terminals of the pressure real-time monitoring module and the temperature monitoring module are respectively connected to the input terminal of the control and data processing module, and the output terminal of the control and data processing module is connected to the cooling fan power adjustment module to realize dynamic heat dissipation control based on bearing pressure. The control and data processing module also receives the temperature signal and switches to temperature control mode when the pressure signal is abnormal.

[0005] Preferably, the real-time pressure monitoring module includes: a pressure sensor installed at the stress position of the bearing housing for detecting the radial pressure of the bearing; and a signal conditioning circuit for amplifying, filtering, and converting the signal output by the pressure sensor into an analog-to-digital signal.

[0006] Preferably, the pressure sensor is a piezoelectric or strain gauge sensor and is fixed to the bearing housing by a threaded or embedded structure.

[0007] Preferably, the cooling fan power adjustment module includes: a 220W cooling fan for forced air cooling of the bearing; and a drive board that uses PWM speed regulation to achieve stepless adjustment of the fan power.

[0008] Preferably, the control and data processing module includes: a microcontroller for executing a pressure-power mapping algorithm; an input interface for receiving pressure sensor signals and temperature signals; and an output interface for sending PWM control signals to the cooling fan power regulation module.

[0009] Preferably, the control and data processing module is also connected to a human-machine interface screen for real-time display of pressure, fan power, and alarm status.

[0010] The beneficial effects of this invention are as follows: The real-time pressure monitoring and temperature control device for the vertical crusher achieves intelligent heat dissipation through multi-modal collaborative control. Its pressure sensor directly detects the radial mechanical pressure of the bearing, and the signal conditioning circuit converts the micro-strain signal into a digital signal. The temperature sensor monitors the bearing temperature, providing delayed but stable thermal state feedback. The microcontroller calculates the heat dissipation demand in real time through a preset pressure-power mapping algorithm. When the pressure signal exceeds the threshold, the fan power is immediately increased to the preset peak value to prevent thermal shock. During normal operation, the fan power is directly driven by the pressure signal, with a response time of <50ms. When the temperature exceeds the safety threshold or the pressure signal fails, it switches to PID temperature control, adjusting the PWM through a PI algorithm. The PWM driver board adjusts the 220W fan speed at a frequency of 20kHz, with a power adjustment range of 10%-100%, and stepless speed regulation avoids mechanical shock. This device uses the pressure signal as a feedforward quantity to predict heat generation and the temperature signal as a feedback quantity to correct errors, resulting in a response speed 3-5 times faster than simple PID temperature control. Furthermore, it identifies abnormal operating conditions such as material jamming in the crusher by detecting the pressure change rate, and enhances heat dissipation in advance before the temperature rises, avoiding the "thermal inertia" problem of traditional temperature control. Therefore, it can save 30%-45% energy compared to fixed-speed fans, and extend the fan life by 2-3 times, making it particularly suitable for intermittent impact load scenarios. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the sensor installation position according to this utility model.

[0014] In the diagram: 1. Bearing housing; 2. Temperature monitoring module; 5. Pressure sensor; 6. Signal conditioning circuit; 7. Cooling fan; 8. Driver board; 9. Microcontroller; 10. Input interface; 11. Output interface; 12. Human-machine interface screen. Detailed Implementation

[0015] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] according to Figure 1 , Figure 2 As shown, a pressure real-time monitoring and temperature control device for a vertical crusher includes: a pressure real-time monitoring module for detecting the real-time pressure signal of the bearing; a temperature monitoring module 2 for detecting the real-time temperature of the bearing; and a power adjustment module for the cooling fan 7 for dynamically adjusting the power of the cooling fan 7.

[0017] The real-time pressure monitoring module includes: a pressure sensor 5, installed at the stress position of the bearing housing 1, for detecting the radial pressure of the bearing; and a signal conditioning circuit 6, for amplifying, filtering, and performing analog-to-digital conversion on the signal output by the pressure sensor 5. The pressure sensor 5 is a piezoelectric or strain gauge sensor and is fixed to the bearing housing 1 by a threaded or embedded structure.

[0018] The power adjustment module of the cooling fan 7 includes: a 220W cooling fan 7 for forced air cooling of the bearing; and a drive board 8, which adopts PWM speed regulation to realize stepless adjustment of the fan power.

[0019] The control and data processing module is used to receive pressure signals and calculate corresponding fan power adjustment commands; the output terminals of the real-time pressure monitoring module and the temperature monitoring module 2 are respectively connected to the input terminal of the control and data processing module, and the output terminal of the control and data processing module is connected to the power adjustment module of the cooling fan 7 to realize dynamic heat dissipation control based on bearing pressure; the control and data processing module also receives temperature signals and switches to temperature control mode when the pressure signal is abnormal.

[0020] The control and data processing module includes: a microcontroller 9 for executing a pressure and power mapping algorithm; an input interface 10 for receiving signals from the pressure sensor 5 and temperature signals; and an output interface 11 for sending PWM control signals to the power adjustment module of the cooling fan 7.

[0021] In addition, the control and data processing module is also connected to the human-machine interface screen 12 for real-time display of pressure, fan power and alarm status.

[0022] The pressure monitoring and temperature control device of this vertical crusher achieves intelligent heat dissipation through multi-modal collaborative control. Its pressure sensor 5 directly detects the radial mechanical pressure of the bearing, and the signal conditioning circuit 6 converts the micro-strain signal into a digital signal. The temperature sensor monitors the bearing temperature, providing delayed but stable thermal status feedback. The microcontroller 9 calculates the heat dissipation demand in real time through a preset pressure-power mapping algorithm. When the pressure signal exceeds the threshold, the fan power is immediately increased to the preset peak value to prevent thermal shock. During normal operation, the fan power is directly driven by the pressure signal, with a response time of <50ms. When the temperature exceeds the safety threshold or the pressure signal fails, it switches to PI temperature control, adjusting the PWM through a PI algorithm. The PWM driver board 8 adjusts the 220W fan speed at a frequency of 20kHz, with a power adjustment range of 10%-100%, providing stepless speed control to avoid mechanical shock.

[0023] This device uses pressure signals as feedforward to predict heat generation and temperature signals as feedback to correct errors, resulting in a response speed 3-5 times faster than simple PID temperature control. Furthermore, it identifies abnormal operating conditions such as material jamming in the crusher by detecting the pressure change rate, enhancing heat dissipation before the temperature rises and avoiding the "thermal inertia" problem of traditional temperature control. Therefore, compared to fixed-speed fans, it can save 30%-45% energy and extend fan life by 2-3 times, making it particularly suitable for intermittent impact load scenarios.

[0024] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A real-time pressure monitoring and temperature control device for a vertical crusher, characterized in that, include: The real-time pressure monitoring module is used to detect the real-time pressure signal of the bearing. Temperature monitoring module (2) is used to detect the real-time temperature of the bearing; The power adjustment module for the cooling fan (7) is used to dynamically adjust the power of the cooling fan (7); The control and data processing module is used to receive pressure signals and calculate the corresponding fan power adjustment commands; The output terminals of the real-time pressure monitoring module and the temperature monitoring module (2) are respectively connected to the input terminal of the control and data processing module, and the output terminal of the control and data processing module is connected to the power adjustment module of the cooling fan (7) to realize dynamic heat dissipation control based on bearing pressure. The control and data processing module also receives temperature signals and switches to temperature control mode when the pressure signal is abnormal.

2. The pressure real-time monitoring and temperature control device for a vertical crusher according to claim 1, characterized in that: The real-time pressure monitoring module includes: a pressure sensor (5), installed at the force position of the bearing housing (1), used to detect the radial pressure of the bearing; and a signal conditioning circuit (6), used to amplify, filter and convert the signal output by the pressure sensor (5).

3. The pressure real-time monitoring and temperature control device for a vertical crusher according to claim 2, characterized in that: The pressure sensor (5) is a piezoelectric or strain gauge sensor and is fixed to the bearing housing (1) by a thread or embedded structure.

4. The pressure real-time monitoring and temperature control device for a vertical crusher according to claim 1, characterized in that: The power adjustment module of the cooling fan (7) includes: a 220W cooling fan (7) for forced air cooling of the bearing; and a drive board (8) which adopts PWM speed regulation to realize stepless adjustment of the fan power.

5. The pressure real-time monitoring and temperature control device for a vertical crusher according to claim 1, characterized in that: The control and data processing module includes: A microcontroller (9) is used to execute a pressure-power mapping algorithm; Input interface (10) is used to receive signals from pressure sensor (5) and temperature signal; The output interface (11) is used to send PWM control signals to the power regulation module of the cooling fan (7).

6. The pressure real-time monitoring and temperature control device for a vertical crusher according to claim 1, characterized in that: The control and data processing module is also connected to the human-machine interface screen (12) for real-time display of pressure, fan power and alarm status.

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