A grease reservoir oil level detection device

Abstract

The utility model belongs to liquid level monitoring technical field provides a kind of grease reservoir pipe grease level detection equipment, comprising: grease reservoir pipe, and the observation window is established in the side of grease reservoir pipe;Slave, slave is installed in observation window outside, and slave is built-in control panel, power supply module, grey scale sensor and distance sensor;Control panel is integrated with bluetooth module and storage module;Drive element is installed in slave inner wall, and drive element output shaft is installed in the side wall of distance sensor;Host, host is mobile terminal, and host is integrated with bluetooth receiving module;The utility model is set up grease reservoir pipe, slave and host, greatly promote the liquid level monitoring range, improve monitoring accuracy, through the combination of non-contact ranging and grey scale sensor identification, effectively resist grease adhesion and environmental light interference, ensure stable operation in all working conditions.

Description

Technical Field

[0001] This utility model belongs to the field of liquid level monitoring technology, specifically a grease level detection device for a grease storage tube. Background Technology

[0002] In industrial production and the operation of various equipment, the storage and use of grease is of paramount importance, and accurate monitoring of the grease level in the grease storage tube is a key link to ensure stable production and efficient equipment operation.

[0003] Traditional testing methods, such as direct weighing, are difficult and costly to implement in large grease storage tanks, making them difficult to apply widely. Methods that rely on tank volume, grease level, and density for estimation are also problematic because grease density is significantly affected by factors such as type and temperature. Furthermore, uneven temperature distribution within the same tank leads to uneven grease density, resulting in substantial errors in the estimation results and failing to meet the demands of high-precision testing.

[0004] Traditional contact sensors are easily contaminated by grease and become ineffective, manual inspection is inefficient and dangerous, and existing wireless solutions cannot meet the requirements of high precision and non-contact operation.

[0005] To address this issue, those skilled in the art have proposed a grease level detection device for grease reservoirs to solve the problems raised in the background art. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a grease level detection device for grease storage tubes, thereby solving the problems of traditional contact sensors being easily contaminated and failing due to grease, and the low efficiency and danger of manual inspection in the prior art.

[0007] A grease level detection device for a grease reservoir includes: a grease reservoir with an observation window on its periphery;

[0008] The slave device is installed on the outside of the observation window and has a built-in control board, power supply module, grayscale sensor and distance sensor. The control board integrates a Bluetooth module and a storage module. A drive component is installed on the inner wall of the slave device, and the output shaft of the drive component is installed on the side wall of the distance sensor.

[0009] The host is a mobile terminal and has a built-in Bluetooth receiver module.

[0010] Preferably, it also includes an assembly plate, the front end face of which has a through groove and several connecting holes. The through groove is positioned corresponding to the observation window. Several fixing rings are installed at the connecting holes. A monitoring ring is also installed at the connecting holes. The monitoring ring faces the observation window, and a slave device is fixedly installed inside the monitoring ring.

[0011] Preferably, an audible and visual alarm is installed on the outer wall of the slave device, and the audible and visual alarm is electrically connected to the control board.

[0012] Preferably, the driving component is a micro motor.

[0013] Preferably, the driving component is configured as follows:

[0014] The drive unit controls the distance sensor to point in the direction of the center normal of the observation window, and obtains the horizontal reference distance D from the distance sensor to the observation window. h ;

[0015] The grayscale sensor identifies the location of the reflection characteristics of the grease surface within the observation window area; the distance sensor is driven to rotate and point towards the reflection characteristic location to obtain the oblique measured distance D from the distance sensor to the grease surface. s ;

[0016] The control panel is based on the formula The height difference ΔH between the liquid surface and the distance sensor is obtained.

[0017] Preferably, the distance sensor has a pre-stored initial installation height H0, and the control board calculates the absolute height of the liquid surface H = H0 ± ΔH based on the vector relationship between the height difference ΔH and the initial height H0.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention greatly improves the liquid level monitoring range and accuracy by setting up a grease storage pipe, a slave unit, and a master unit. By combining non-contact ranging with grayscale sensing, it effectively resists grease adhesion and ambient light interference, ensuring stable operation under all working conditions. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a front view structural diagram of the present invention;

[0022] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the middle AA section;

[0023] Figure 4 This is a cross-sectional structural diagram of the slave device.

[0024] In the picture:

[0025] 1. Grease reservoir; 101. Observation window; 2. Assembly plate; 201. Through slot; 203. Connection hole; 204. Fixing ring; 205. Monitoring ring; 3. Slave unit; 4. Control board; 5. Gray scale sensor; 6. Audible and visual alarm; 7. Distance sensor; 8. Drive unit; 9. Power supply module. Detailed Implementation

[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0027] Example 1: As shown in the attached document Figure 1 To be continued Figure 4 As shown: This utility model provides a grease level detection device for a grease reservoir tube, including a grease reservoir tube 1, a slave unit 3, and a main unit;

[0028] An observation window 101 is provided on one side of the grease reservoir. The observation window 101 is made of double-layered tempered glass with a light transmittance of ≥90% and is resistant to grease corrosion.

[0029] Slave unit 3 is installed on the outside of observation window 101 and is fixed to the outside of observation window 101 by waterproof bolts. Its housing is made of aluminum alloy with IP67 protection rating. Slave unit 3 has a built-in control board 4, power supply module 9, grayscale sensor 5 and distance sensor 7. Control board 4 integrates Bluetooth module and storage module. A drive component 8 is installed on the inner wall of slave unit 3. The drive component 8 is a micro motor. The output shaft of drive component 8 is installed on the side wall of distance sensor 7. A sound and light alarm 6 is installed on the outer wall of slave unit 3. The sound and light alarm 6 is electrically connected to control board 4. The alarm integrates a 100dB piezoelectric buzzer and RGB three-color LED beads, which are connected to the GPIO pin of control board 4 through a ribbon cable.

[0030] The control board 4 integrates a low-power Bluetooth 5.1 module and a Flash memory chip. The memory module records the original liquid level data once per minute and cyclically overwrites and saves it for 72 hours. The drive unit 8 is mounted on the inner wall of the slave unit 3 through a bracket. The drive unit 8 is a NEMA11 micro motor. Its output shaft is vertically connected to the rotating base of the distance sensor 7 through a coupling, so that the distance sensor 7 can be accurately deflected within a range of ±30°.

[0031] The host is a mobile terminal with an integrated Bluetooth receiver module. The host is an Android / iOS mobile terminal, pre-installed with a dedicated monitoring APP and a built-in Bluetooth receiver chip, enabling data visualization and remote parameter configuration.

[0032] Drive unit 8 uses a miniature motor, configured as follows:

[0033] The drive unit 8 controls the distance sensor 7 to point in the direction of the center normal of the observation window 101, and obtains the horizontal reference distance D between the distance sensor 7 and the observation window 101. h ;

[0034] The grayscale sensor 5 identifies the location of the oil surface reflection characteristics within the observation window 101 area; the distance sensor 7 is driven to rotate and point to the reflection characteristic location, thus obtaining the oblique measured distance D from the distance sensor 7 to the liquid surface. s ;

[0035] Control panel 4 according to the formula The height difference ΔH between the liquid surface and the distance sensor 7 is obtained.

[0036] The distance sensor 7 has a pre-stored initial installation height H0. The control board 4 calculates the absolute liquid level height H = H0 ± ΔH ("±" is determined by the sensor installation direction) based on the vector relationship between the height difference ΔH and the initial height H0. The absolute height H is compared with the preset threshold. If the limit is exceeded, the audible and visual alarm 6 is triggered and a warning signal is sent to the host via the Bluetooth module.

[0037] As can be seen from the above, after the equipment is installed, the observation window 101 provides a stable channel for the detection optical path, ensuring that the sensor of the slave unit 3 can clearly identify the oil level in the tube; the slave unit 3 is fixed to the outside of the observation window 101 by waterproof bolts;

[0038] During the initial detection phase, control board 4 drives a micro motor (NEMA11 model) to rotate distance sensor 7 to the center normal direction of observation window 101. At this time, distance sensor 7 emits a detection signal to the surface of the observation window, acquiring and storing the horizontal reference distance D. h This distance is a fixed parameter after the slave device is installed, and it serves as the benchmark for subsequent calculations.

[0039] During the detection phase, the grayscale sensor 5 emits light of a specific wavelength in real time to illuminate the observation window 101 area. By receiving changes in the intensity of the reflected light, it accurately identifies the reflective feature position of the grease surface (due to the significant grayscale difference between the grease surface and the air or pipe wall). After identification, the control board 4 sends a command to the drive unit 8, driving the distance sensor 7 to rotate within ±30° and precisely point to the reflective feature position. The distance sensor 7 obtains the oblique measured distance D to the liquid surface by measuring the round-trip time of the signal. s .

[0040] During the data processing stage, control board 4, based on the Pythagorean theorem, uses formulas... The height difference ΔH between the liquid surface and the distance sensor 7 is calculated; then the initial installation height H0 (with the bottom of the grease reservoir or the reference plane as the zero point) stored in the distance sensor 7 is called up, and the absolute height of the liquid surface H = H0 ± ΔH is calculated according to the vector relationship of the sensor installation direction ("±" is determined by the installation coordinate system).

[0041] During the warning phase, the control board 4 compares the absolute liquid level H with the high / low liquid level threshold preset by the user through the host in real time. When the threshold is exceeded, the sound and light alarm 6 on the outer wall of the slave device is immediately triggered, in which a 100dB piezoelectric buzzer sounds and the RGB three-color LED beads flash red. At the same time, the control board 4 wirelessly transmits the warning signal (including device ID, current liquid level, and alarm type) to the host as a mobile terminal through the integrated low-power Bluetooth module. The host realizes data visualization and remote reminder through a dedicated APP. The storage module records the liquid level data at a frequency of once per minute, and cyclically overwrites and saves 72 hours of historical records for traceability.

[0042] High-precision dynamic triangulation greatly improves the liquid level monitoring range and accuracy; the combination of non-contact ranging and grayscale sensing effectively resists grease adhesion and ambient light interference, ensuring stable operation under all working conditions; the linkage between the audible and visual alarm and the Bluetooth module enables rapid and safe response, timely warning of abnormal liquid levels, ensuring long-term maintenance-free operation of the equipment in complex environments, and comprehensively optimizing monitoring efficiency.

[0043] Example 2: Based on Example 1, it also includes an assembly plate 2. The front end face of the assembly plate 2 is provided with a through groove 201 and several connecting holes 203. The position of the through groove 201 corresponds to the observation window 101. Several fixing rings 204 are installed at the connecting holes 203. A monitoring ring 205 is also installed at the connecting holes 203. The ring body of the monitoring ring 205 faces the observation window 101. The slave device 3 is fixedly installed inside the monitoring ring 205.

[0044] As can be seen from the above, during the assembly stage, the assembly plate 2 is installed on the outer wall of the grease reservoir 1 through the fixing ring 204; the fixing ring 204 is tightly connected to the grease reservoir 1 through interference fit, which can buffer the vibration of the grease reservoir during operation.

[0045] The center of the through slot 201 coincides with the center of the observation window 101 to avoid obstructing the detection optical path of the slave device 3; the monitoring ring 205 faces the observation window 101, and the slave device 3 is fixed inside the monitoring ring 205 by bolts. The rigid structure of the monitoring ring 205 ensures that the detection direction of the slave device 3 is always directly facing the central area of ​​the observation window 101, ensuring that the detection axes of the grayscale sensor 5 and the distance sensor 7 maintain a preset angle with the observation window 101.

[0046] During the detection phase, the assembly plate 2 provides an unobstructed detection channel for the sensors of the slave unit 3 through the through slot 201, enabling the grayscale sensor 5 to clearly identify the reflection characteristics of the grease surface within the observation window 101, and the distance sensor 7 to accurately transmit and receive detection signals.

[0047] When the equipment is running or under external vibration, the fixed ring 204 absorbs vibration energy through its own elastic deformation, reducing the displacement deviation of the slave device 3 and avoiding detection angle shift caused by vibration; the monitoring ring 205 ensures that the slave device 3 will not tilt due to gravity or external force during long-term use by rigidly limiting it, thus maintaining the detection direction stability of the grayscale sensor 5 and the distance sensor 7.

[0048] During the data transmission and early warning phase, the assembly plate 2 securely fixes the slave device 3, reducing vibration interference with the sensor detection signal and ensuring that the horizontal reference distance D acquired by the distance sensor 7 is accurate. h and oblique measured distance D s More stable, the control board 4 calculates the height difference ΔH and the absolute liquid level H based on these data with smaller errors. When the liquid level exceeds the limit, the audible and visual alarm 6 on the outer wall of the slave unit 3 can reliably trigger the alarm, and the Bluetooth module can also continuously send warning signals to the host, ensuring the reliability of the warning.

[0049] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0050] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grease level detection device for a grease reservoir, characterized in that: include: A grease reservoir (1) is provided with an observation window (101) on its periphery; The slave device (3) is installed on the outside of the observation window (101). The slave device (3) has a built-in control board (4), power supply module (9), grayscale sensor (5) and distance sensor (7). The control board (4) integrates a Bluetooth module and a storage module. A drive component (8) is installed on the inner wall of the slave device (3). The output shaft of the drive component (8) is installed on the side wall of the distance sensor (7). The host is a mobile terminal and has a built-in Bluetooth receiver module.

2. The grease level detection device for a grease reservoir as described in claim 1, characterized in that: It also includes an assembly plate (2), the front end face of which is provided with a through groove (201) and a number of connecting holes (203). The through groove (201) is positioned corresponding to the observation window (101). A number of fixing rings (204) are installed at the connecting holes (203). A monitoring ring (205) is also installed at the connecting holes (203). The monitoring ring (205) faces the observation window (101). The slave device (3) is fixedly installed inside the monitoring ring (205).

3. The grease level detection device for a grease reservoir as described in claim 2, characterized in that: The slave unit (3) is equipped with an audible and visual alarm (6) on its outer wall, and the audible and visual alarm (6) is electrically connected to the control board (4).

4. The grease level detection device for a grease reservoir as described in claim 1, characterized in that: The drive component (8) is a micro motor.

5. The grease level detection device for a grease reservoir as described in claim 1 or 3, characterized in that: The drive unit (8) is configured as follows: The drive unit (8) controls the distance sensor (7) to point in the direction of the center normal of the observation window (101), and obtains the horizontal reference distance D from the distance sensor (7) to the observation window (101). h ; The grayscale sensor (5) identifies the reflective features of the grease surface within the observation window (101); the distance sensor (7) is driven to rotate and point to the reflective features, and the oblique measured distance D from the distance sensor (7) to the liquid surface is obtained. s ; The control panel (4) is based on the formula The height difference ΔH between the liquid surface and the distance sensor (7) is obtained.

6. The grease level detection device for a grease reservoir as described in claim 5, characterized in that: The distance sensor (7) has a pre-stored initial installation height H0. The control board (4) calculates the absolute height of the liquid surface H = H0 ± ΔH based on the vector relationship between the height difference ΔH and the initial height H0.

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