Grid cleaner with state monitoring and power backup

Abstract

The utility model relates to a grating cleaner with state monitoring and power backup, including grating monitoring package, inner transmission package, outer transmission package, outer power package, grating monitoring package includes laser range finder module, alarm unit, laser range finder module fixedly arranged on the opening of the shell side wall of grating cleaner body, sends alarm signal to alarm unit, inner transmission package includes first transmission shaft body, transmission gear, electromagnetic clutch I, first sprocket I, second sprocket I, first transmission shaft body and electromagnetic clutch I all install grating cleaner body shell, driving shaft I and driven shaft I are inserted from the both ends of electromagnetic clutch I respectively, first sprocket I and second sprocket I all are fixed and are installed in driven shaft I, first sprocket I is connected with the transmission of pivot, outer transmission package second sprocket I connects driving shaft II, first sprocket II transmission connection common pivot, a common pivot can power connection multiple grating cleaner bodies, common pivot power connection spare motor.

Description

Technical Field

[0001] This utility model relates to sewage treatment equipment, and more particularly to a bar screen cleaning machine. Background Technology

[0002] Bar screens are a general term encompassing coarse and fine bar screens, with some water treatment plants also having ultra-fine bar screens. They are a necessary treatment step before entering the aerated grit chamber. The bar screens or bars use a belt reciprocating mechanism to intercept impurities in the water, and hook-like or rake-like structures to remove the impurities. Finally, the impurities are swept into a conveying device and transported out of the bar screen, achieving solid-liquid separation.

[0003] Bar screens are simple in structure and widely used by water utilities. However, due to their continuous 24-hour operation, they are prone to malfunctions. Furthermore, most bar screens have never been shut down since installation and commissioning, except for routine maintenance. As time goes on, a large number of bar screens are entering a period of frequent breakdowns.

[0004] Under normal circumstances, minor malfunctions of the bar screen will not cause the machine to stop as long as they do not affect the water treatment work. Major malfunctions, on the other hand, are usually manifested as motor failures and chain detachment (or bar screen belt misalignment, or underwater driven wheel jamming), which seriously affect production operations. The vast majority of major malfunctions occur at night.

[0005] To ensure normal production, it is also necessary to implement the principle of cost reduction and efficiency improvement, and the grille needs to be modified to solve or partially solve the problem of easy failure. Summary of the Invention

[0006] To address the aforementioned issues, a bar screen cleaning machine with status monitoring and power backup is provided. This technical solution can be viewed as an equipment life extension solution, addressing the problem of frequent failures in aging equipment. The provided technical solution includes a bar screen cleaning machine body, characterized in that it further includes a bar screen monitoring package, an internal transmission package, an external transmission package, and an external power package.

[0007] The bar screen monitoring package includes at least a laser ranging module and an alarm unit. The laser ranging module is fixedly installed on the opening on the side wall of the outer casing of the bar screen cleaner body. The laser ranging module is used to monitor the operating status of the bar screen. When the bar screen is in an abnormal state, the laser ranging module sends an electrical signal to the alarm unit to trigger an alarm.

[0008] The internal transmission package includes a first transmission shaft, transmission gears, an electromagnetic clutch I, a first sprocket I, and a second sprocket I. The two ends of the first transmission shaft are rotatably mounted on the outer casing of the bar screen body. The electromagnetic clutch I is fixed inside the outer casing by a bracket. The drive shaft I and driven shaft I of the first transmission shaft are connected and inserted from one end of the input flange and one end of the output flange of the electromagnetic clutch I, respectively. The first sprocket I and the second sprocket I are both fixedly mounted on the driven shaft I. The first sprocket I is connected to the rotating shaft that directly drives the bar screen.

[0009] The outer transmission package is identical in structure to the inner transmission package except for the absence of transmission gears; the electromagnetic clutch II of the outer transmission package faces the opposite direction to the electromagnetic clutch I; the second sprocket I is connected to the drive shaft II of the second transmission shaft; the first sprocket II on the driven shaft II of the second transmission shaft is connected to the common shaft.

[0010] Multiple bar screen cleaner bodies can be poweredly connected to a common rotating shaft, and a backup motor can also be powered to the common rotating shaft.

[0011] Based on the above technical solution, the grid monitoring package also includes a control unit and a network unit. The control unit is used to receive electrical signals from the laser ranging module and control the opening and closing of the alarm unit. When the laser ranging module detects an abnormal operation signal of the grid, it sends an electrical signal to the control unit. The control unit sends the abnormal operation information to the control center through the network unit and simultaneously activates the alarm unit to sound an alarm.

[0012] Based on the above technical solution, the grid monitoring package also includes a power motor monitoring unit to monitor the operating status of the power motor. When the power motor status is abnormal, it sends information to the control center through the network unit. The control center can activate the clutch power connection of the electromagnetic clutch II of the outer transmission package and control the clutch power disconnection of the electromagnetic clutch I of the inner power package. At the same time, it starts the common motor of the outer power package and indirectly drives the grid shaft to rotate through the common motor.

[0013] Based on the above technical solution, the inner transmission package also includes a waterproof cover, which covers the other parts of the inner transmission package and is upside down on the top of the outer shell of the bar screen cleaner body. The waterproof cover has multiple openings for the transmission components to pass through.

[0014] Based on the above technical solution, the bar screen body has a detachable maintenance plate on the outer shell corresponding to the waterproof cover, and a detachable bottom plate is provided at the bottom of the waterproof cover.

[0015] Beneficial effects: For a large number of old grates, only limited modifications are needed to achieve the effect of monitoring the operation status and ensuring uninterrupted operation in case of emergency failure.

[0016] Since the basic structure of a bar screen cleaner is not complex, its operating status can be directly determined by monitoring the bar's operating frequency. Utilizing the rapid response and low power consumption of laser sensors, they are highly suitable for detecting bar screen operation, enabling continuous monitoring throughout the year. Connecting the laser sensor to an alarm unit allows for immediate alerts upon detecting anomalies, quickly locating the faulty equipment without waiting for troubleshooting results from the control center.

[0017] A power backup solution is provided to address the major problem of motor failure in grilles. Relying on cost-effective electromagnetic clutches, which are widely adapted to the inner and outer transmission packages, this solution serves as a replacement for the original power source. When the original motor fails, the output shaft of the power source can be switched by using the electromagnetic clutch in conjunction with the outer power package, outer transmission package, and inner transmission package. This allows the original motor in the outer power package to be used to drive the grille for a short period of time, achieving the effect of continuous operation or short-term shutdown. Attached Figure Description

[0018] Figure 1 This is a front sectional view of the bar screen cleaning machine of this utility model.

[0019] Figure 2 For the present utility model Figure 1 A magnified view of a portion of the image.

[0020] Figure 3 For the present utility model Figure 2 A magnified view of a portion of the image.

[0021] Figure 4 This is a three-dimensional schematic diagram of the mounting array structure of this utility model.

[0022] Figure 5 For the present utility model Figure 4 A three-dimensional schematic diagram of a partial structure. Detailed Implementation

[0023] This embodiment is a renovation plan for an existing old bar screen 24, aiming to extend its service life and reduce downtime caused by equipment failure. It does not affect the existing functions of the bar screen 24, such as the screw conveyor for conveying waste.

[0024] The principle behind its use is as follows:

[0025] I. Monitoring or monitoring of the operating status of the grille 24 itself;

[0026] 1. A laser sensor, specifically a laser ranging module, is installed on the opening of the side wall of the outer shell of the screen 24 cleaning machine body 1 using a bracket. The laser of the laser ranging module is aligned with the chain of the screen 24. During the normal operation of the chain, the data monitored by the laser ranging module is regular, consistent, and stable.

[0027] 2. When the chain deviates from the predetermined movement trajectory or the movement frequency slows down, the data monitored by the laser ranging module will inevitably fluctuate, and the laser ranging module will send an electrical signal to the alarm unit to activate the alarm.

[0028] II. Regarding the power replacement for the failure of the power motor 23 of the bar screen 24 cleaning machine body 1;

[0029] 1. When the power motor 23 stops, the electromagnetic clutch I7 of the control internal transmission package 2 disengages, and the power connection between the first transmission shaft 5 and the drive shaft I11 and the driven shaft I10 is disconnected.

[0030] 2. When the electromagnetic clutch II14 of the external transmission package 3 is energized and engaged, the driving shaft II18 and the driven shaft II17 of the second transmission shaft 13 of the external transmission package 3 are connected.

[0031] 3. Start the shared motor to drive the shared shaft 1912 to rotate;

[0032] 4. The common rotating shaft 1912 drives the second sprocket II 16 of the outer transmission package 3 to rotate, which indirectly drives the second transmission shaft 13 to rotate;

[0033] 5. The first sprocket II 15 of the second transmission shaft 13 drives the second sprocket I 9 of the inner transmission package 2 to rotate, and the second sprocket I 9 drives the driven shaft I 10 of the first transmission shaft 5 to rotate;

[0034] 6. The driven shaft I10 of the first transmission shaft 5 drives the first sprocket to rotate, thereby driving the rotating shaft 12 of the grille 24 to rotate, thus realizing the substitution of power.

[0035] This embodiment uses two electromagnetic clutches facing opposite directions in the inner and outer transmission packages 3 to interrupt power while simultaneously connecting backup power. The inner transmission package 2 and the outer transmission package 3 are structurally similar, differing only in that the transmission gear 6, which is connected to the power motor 23, is fixedly mounted on the drive shaft I11 of the first transmission shaft 5 of the inner transmission package 2. For distinction, the structural names of the inner and outer transmission packages 3 include the Roman numerals "I" and "II," respectively. Aside from possible dimensional differences, the structural features of the inner transmission package 2 are also present in the outer transmission package 3. In this embodiment, only the drive shaft can be inserted through the input flange of the electromagnetic clutch, and only the driven shaft can be inserted through the output flange.

[0036] like Figures 1 to 3 As shown, the original motor 23 of the bar screen 24 cleaning machine body 1 directly drives the drive shaft of the bar screen 24 via the transmission gear 6 before the modification. After the modification, a first transmission shaft body 5, an inner transmission package 2, and an outer transmission package 3 are added. In addition, an outer power package 4 is arranged above the bar screen 24 cleaning machine body 1, which provides alternative or backup power for multiple bar screen 24 cleaning machine bodies 1. During the modification, the original outer shell can be cut and welded to increase the height of the top of the outer shell and expand the internal space. The inner and outer transmission packages 3 are designed in a modular form similar to power packages. Both the inner and outer transmission packages 3 have protective structures such as covers or boxes, which can be directly installed as a whole without the need for individual installation of each component.

[0037] A common shaft 1912 connects multiple screen 24 cleaning machines. The common shaft 1912 is driven by a backup motor 20, which provides backup power to the multiple screen 24 cleaning machines, forming an array. During normal operation of the prime mover, the electromagnetic clutch II 14 of the outer transmission package 3 is disengaged, while the electromagnetic clutch I 7 of the inner transmission package 2 is engaged. The drive shaft I 11 and driven shaft I 10 of the first transmission shaft 5 are connected. The power motor 23 drives the screen 24 to rotate through the inner transmission package 2. When the power motor 23 of one of the screen 24 cleaning machines in the same array fails, the screen 24 stops and alarms. Upon receiving the alarm, waterworks staff disengage the electromagnetic clutch I 7 of the inner transmission package 2 and supply power to the electromagnetic clutch II 14. Engage the clutch; then restart the backup motor 20 of the external power pack 4. The backup motor 20 drives the common shaft 1912 to rotate, which in turn drives the drive shaft II 18 of the second transmission shaft 13 of the external transmission pack 3 to rotate. Since the electromagnetic clutch II 14 connects the driven shaft II 17 to the drive shaft II 18, the second sprocket II 16 on the driven shaft II 17 is powered by the second sprocket I 9 on the driven shaft I 10. The second sprocket I 9 drives the first sprocket I 8 on the drive shaft I 11 to rotate, and the first sprocket I 8 finally drives the rotating shaft 12 of the screen 24 to rotate, completing the power replacement. At this time, without stopping the machine, the power motor 23 can be repaired or replaced, or even discarded. After several years, when all the screen 24 cleaning machines in the same array have failed, the equipment can be purchased and replaced uniformly.

[0038] In some embodiments, the grid 24 monitoring package may also include a control unit and a network unit. The control unit receives electrical signals from the laser ranging module, processes them, and sends them to the water utilities' control center via the network unit. Simultaneously, it controls the alarm unit to activate. Specific circuitry and relay connection circuits can refer to existing technologies. In other embodiments, the grid 24 monitoring package may also include a motor 23 monitoring unit. By arranging various sensors, which can employ existing mature solutions, such as those used to detect the motor 23's temperature (temperature sensor), vibration (vibration sensor), speed, and voltage (motor protector), the control unit receives abnormal information data and transmits the abnormal situation to the control center via the network unit. It can also directly control the disconnection of the power supply to the motor 23, control the start of the backup motor 20 in the external power package 4, and simultaneously control the disconnection and connection of the electromagnetic clutch devices in the internal and external transmission packages 3. This achieves automatic switching of backup power, ensuring uninterrupted operation and improving the intelligence and networking of older equipment at low cost.

[0039] In other embodiments, the inner transmission package 2 is installed on top of the outer casing. To prevent water and dirt accumulation, a waterproof cover 21 is used to enclose the inner transmission package 2. The waterproof cover 21 is inverted and placed on the outer casing. An opening is provided at the bottom of the waterproof cover 21 for transmission components, such as a transmission chain, to pass through. In other embodiments, the inner transmission package 2 also requires maintenance. A removable inspection plate is provided at a corresponding position on the outer casing. Removing the inspection plate allows direct access to the waterproof cover 21. A removable maintenance plate is also provided at the bottom of the waterproof cover 21. Removing the bottom plate 22 allows direct contact with the various components of the inner transmission package 2. The corresponding bottom plate 22 should also have openings for other components to pass through.

Claims

1. A bar screen cleaner with status monitoring and power backup, comprising a bar screen cleaner body, characterized in that, It also includes a grid monitoring package, an internal transmission package, an external transmission package, and an external power package; The bar screen monitoring package includes at least a laser ranging module and an alarm unit. The laser ranging module is fixedly installed on the opening on the side wall of the outer casing of the bar screen cleaner body. The laser ranging module is used to monitor the operating status of the bar screen. When the bar screen is in an abnormal state, the laser ranging module sends an electrical signal to the alarm unit to trigger an alarm. The internal transmission package includes a first transmission shaft, transmission gears, an electromagnetic clutch I, a first sprocket I, and a second sprocket I. The two ends of the first transmission shaft are rotatably mounted on the outer casing of the bar screen body. The electromagnetic clutch I is fixed inside the outer casing by a bracket. The drive shaft I and driven shaft I of the first transmission shaft are connected and inserted from one end of the input flange and one end of the output flange of the electromagnetic clutch I, respectively. The first sprocket I and the second sprocket I are both fixedly mounted on the driven shaft I. The first sprocket I is connected to the rotating shaft that directly drives the bar screen. The outer transmission package is identical in structure to the inner transmission package except for the absence of transmission gears; the electromagnetic clutch II of the outer transmission package faces the opposite direction to the electromagnetic clutch I; the second sprocket I is connected to the drive shaft II of the second transmission shaft; the first sprocket II on the driven shaft II of the second transmission shaft is connected to the common shaft. Multiple bar screen cleaner bodies can be poweredly connected to a common rotating shaft, and a backup motor can also be powered to the common rotating shaft.

2. The bar screen cleaner with status monitoring and power backup as described in claim 1, characterized in that, The grid monitoring package also includes a control unit and a network unit. The control unit receives electrical signals from the laser ranging module and controls the alarm unit to open and close. When the laser ranging module detects an abnormal operation signal of the grid, it sends an electrical signal to the control unit. The control unit sends the abnormal operation information to the control center through the network unit and simultaneously activates the alarm unit.

3. The bar screen cleaner with status monitoring and power backup as described in claim 1, characterized in that, The grid monitoring package also includes a power motor monitoring unit to monitor the operating status of the power motor. When the power motor is abnormal, it sends information to the control center through the network unit. The control center can activate the clutch power connection of the electromagnetic clutch II of the outer transmission package and control the clutch power disconnection of the electromagnetic clutch I of the inner power package. At the same time, it starts the common motor of the outer power package and indirectly drives the grid shaft to rotate through the common motor.

4. The bar screen cleaner with status monitoring and power backup as described in claim 1, characterized in that, The inner transmission package also includes a waterproof cover, which covers the other parts of the inner transmission package and is inverted on the top of the outer shell of the bar screen body. The waterproof cover has multiple openings for the transmission components to pass through.

5. The bar screen cleaner with status monitoring and power backup as described in claim 1, characterized in that, The bar screen body has a removable maintenance plate on the outer shell corresponding to the waterproof cover, and a removable base plate is provided at the bottom of the waterproof cover.

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