Anti-deviation intelligent adjustable safety slag scraping device

Abstract

The utility model relates to an anti-deviation intelligent adjustable safety slag scraping device which comprises a driving shaft and a driven shaft which are arranged on an air floatation machine through a bearing seat, the driving shaft is driven by a driving piece, the driving shaft and the driven shaft are connected with two chains in parallel through gears, and the two chains are connected with the air floatation machine through a bearing seat. Stable long shafts are connected between the two chains in the vertical running direction, the stable long shafts are connected with scrapers, the two ends of each stable long shaft are connected with guide wheels respectively, and the outer side of each chain is provided with an upper-section guide rail and a lower-section guide rail which are matched with the guide wheels, so that the scrapers can stably run along with the chains; a first infrared detector and a second infrared detector are arranged on the shaft end side outside one chain so as to detect the axial deviation degree of the two shafts, and deviation correcting mechanisms are arranged on the outer sides of the two ends of the driving shaft and the outer sides of the two ends of the driven shaft respectively so that deviation can be corrected when the driving shaft and the driven shaft deviate. According to the slag scraping device, the operation stability of the scraping plate can be improved, the risk that the chain falls off can be reduced, and stable operation of slag scraping operation is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of environmental wastewater treatment, and in particular to a deviance-preventing intelligent adjustable safety sludge scraper. Background Technology

[0002] An air flotation machine is a type of wastewater treatment equipment. Its structure mainly includes a drive shaft and a driven shaft fixed by bearing seats. Two parallel chains are connected between the two shafts by gears. Scrapers are connected to the chains. During operation, the chains drive the scrapers to move and achieve the scraping operation.

[0003] The operating environment of an air flotation machine is typically harsh and complex. Therefore, with continued use, issues such as scraper corrosion, chain wear, and bearing wear can occur, affecting the stable operation of the scraping process. Chain wear can easily cause the chain to loosen, leading to unstable scraping. Bearing wear, when causing significant force differences on both sides of the scraper due to scraping, can easily cause lateral displacement of the nearest shaft, resulting in habitual chain slippage. This can lead to unplanned shutdowns, disrupting normal production and impacting processing efficiency. Furthermore, due to the harsh operating environment, repairs after chain slippage are not only difficult but also pose safety hazards for maintenance personnel, necessitating immediate improvement. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides an intelligent adjustable safety scraper that prevents deviation. It can not only improve the stability of the scraper's safe operation, but also reduce the risk of chain detachment, thus ensuring the smooth operation of the scraping operation.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] An intelligent adjustable safety scraper for preventing deviation includes a drive shaft and a driven shaft mounted on an air flotation machine via bearing seats. The drive shaft is driven by a drive component. Two chains are connected in parallel to the drive shaft and the driven shaft via gears. A stabilizing long shaft is connected between the two chains perpendicular to the running direction. Multiple stabilizing long shafts are spaced apart along the running direction. A scraper is connected to each stabilizing long shaft. A guide wheel is connected to each end of each stabilizing long shaft. An upper guide rail and a lower guide rail are provided on the outer side of each chain to cooperate with the guide wheel, so that the scraper can run smoothly with the chain. A first infrared detector and a second infrared detector are provided on the outer side of one chain outside the drive shaft and the driven shaft to detect the axial deviation of the two shafts. Correction mechanisms are provided on the outer side of each end of the drive shaft and the driven shaft to correct deviations when they occur.

[0007] The slag scraping device also includes a controller, and the drive unit, the first infrared detector, the second infrared detector and the correction mechanism are connected to the controller.

[0008] Preferably, the correction mechanism is a telescopic cylinder, and the telescopic rod of the telescopic cylinder is connected to a thrust bearing at its end; the outer side of the thrust bearing protrudes from the outer side of the telescopic rod, or a groove is provided at the end of the drive shaft or driven shaft for the end of the telescopic rod to extend into, and an movable gap is left between the telescopic rod and the groove.

[0009] Preferably, the scraper is fixed to the stabilizing long shaft via a connecting sleeve. The bottom of the connecting sleeve is provided with a snap-fit ​​interface. The scraper is connected to the snap-fit ​​interface by bolts and nuts. The connecting sleeve is provided with a radial mounting hole. The stabilizing long shaft has multiple adjustment holes distributed along its circumferential direction to match the radial mounting hole, so that the radial mounting hole can be connected to one of the adjustment holes by screws.

[0010] Preferably, one side of the chain is also provided with an odor detector and an alarm connected to the controller, so as to sound an alarm after an odor is detected.

[0011] Preferably, the alarm includes a light sensor and / or a buzzer.

[0012] Preferably, the drive shaft and the driven shaft are respectively fixed to the air flotation machine by bearing housings. The bearing housings are provided with elongated mounting holes arranged along the running direction. The bearing housings are fixed by passing through the elongated mounting holes so that the installation position of the bearing housings can be adjusted.

[0013] Preferably, the lower end of the scraper is configured as an arc shape that bends in the direction of slag scraping.

[0014] Preferably, the scraper is made of silicone.

[0015] Preferably, the chain has four stabilizing long shafts evenly distributed along its length.

[0016] The advantages of this utility model using the above technical solution are:

[0017] 1. This slag scraping device, through the coordinated arrangement of multiple stable long shafts and upper and lower guide rail sections, can promote the chain to run as close to the slag scraping direction as possible, which not only improves the stability of chain operation but also ensures that the slag scraping depth remains constant, thereby contributing to improved slag scraping stability. However, when the drive shaft or driven shaft deviates excessively from the other shaft along the axial direction, the chain is prone to falling off. This application, through the coordinated arrangement of a first infrared detector, a second infrared detector, and a correction mechanism, can correct the deviation of the shaft, prevent excessive deviation, and thus avoid the risk of the chain falling off due to deviation, improving the stability of the entire slag scraping process and ensuring high slag scraping efficiency.

[0018] 2. This application, through the cooperation of multiple stable long shafts and scrapers, can not only distribute the amount of slag scraping, but also make the slag scraping process more stable.

[0019] 3. This sludge scraping device has an adjustable scraper angle, which can be used to adjust the scraping depth to make it more suitable for different wastewater treatment situations.

[0020] 4. This slag scraping device, by setting a thrust bearing at the end of the telescopic cylinder, can reduce the correction friction, thereby helping to ensure more stable operation of the slag scraping device.

[0021] 5. During the wastewater treatment process, non-compliant toxic or harmful gases or flammable and explosive gases may be generated. This application uses an odor detector and an alarm to ensure the safety of maintenance personnel when the sludge scraping device needs maintenance. On the other hand, it can also remind nearby staff to make timely process adjustments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0023] Figure 2 for Figure 1 Enlarged structural diagram of section A in the middle;

[0024] Figure 3 for Figure 1 Enlarged structural diagram of section B;

[0025] Figure 4 for Figure 1 Side view applied to an air flotation machine.

[0026] In the diagram, 1. Bearing housing, 2. Air flotation machine, 3. Drive shaft, 4. Driven shaft, 5. Gear, 6. Chain, 7. Stabilizing long shaft, 8. Scraper, 9. Guide wheel, 10. Upper guide rail, 11. Lower guide rail, 12. First infrared detector, 13. Second infrared detector, 14. Correction mechanism, 15. Connecting sleeve, 16. Odor detector, 17. Alarm; 1401. Telescopic cylinder, 1402. Thrust bearing. Detailed Implementation

[0027] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application; however, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] like Figure 1-4 As shown, in this embodiment, the anti-deviation intelligent adjustable safety scraper includes a drive shaft 3 and a driven shaft 4 mounted on the air flotation machine 2 via a bearing seat 1. The drive shaft 3 is driven by a drive component. Two chains 6 are connected in parallel to the drive shaft 3 and the driven shaft 4 via gears 5. A stabilizing long shaft 7 is connected between the two chains 6 perpendicular to the running direction. Multiple stabilizing long shafts 7 are spaced apart along the running direction. Each stabilizing long shaft 7 is connected to a scraper 8. Each end of each stabilizing long shaft 7 is connected to a guide wheel 9, which can be a rolling bearing. Each chain 6 has an upper section on its outer side that cooperates with the guide wheel 9. Guide rail 10 and lower guide rail 11 are provided to ensure that scraper 8 runs smoothly with chain 6. In application, upper guide rail 11 and lower guide rail 12 are specifically fixed to the housing of the air flotation machine. A first infrared detector 11 and a second infrared detector 13 are provided on the outer side of the drive shaft 3 and driven shaft 4 outside of chain 6 to detect the axial deviation of the two shafts. Correction mechanisms 14 are respectively provided on the outer sides of the two ends of the drive shaft 3 and driven shaft 4 to correct deviations. The slag scraping device also includes a controller. The drive component 5, the first infrared detector 12, the second infrared detector 13, and the correction mechanism are connected to the controller 14. The controller can specifically be a commercially available PLC controller. In addition, to better present the structure of the slag scraping device, Figure 1 Only one chain is shown in the drawing. Regarding the structure of the drive component, it may specifically include a servo motor, with second gears connected to both the output shaft and the drive shaft. The two second gears are connected by a second chain, which in turn drives the scraper to perform slag scraping operations via the chains on the drive and driven shafts. The structure of the drive component is not shown in the drawing. Figure 1 While the image is drawn in the diagram, in actual application, those skilled in the art can set it based on common technical knowledge.

[0030] Regarding the correction mechanism 14, it can be implemented using a telescopic cylinder 1401. However, since the machine will not stop when correcting the drive shaft and driven shaft, there will be friction between the telescopic cylinder and the shaft end. In order to reduce or avoid friction, the following structural settings can be made: a thrust bearing 1402 is connected to the end of the telescopic rod of the telescopic cylinder, and the outer side of the thrust bearing 1402 protrudes from the outer side of the telescopic rod. Alternatively, a groove is provided at the end of the drive shaft or driven shaft for the end of the telescopic rod to extend into, and a clearance is left between the telescopic rod and the groove. Both settings are to avoid friction between the telescopic rod and the drive shaft / driven shaft.

[0031] Working Principle: The drive mechanism activates, causing the scraper 8 to move with the chain 6 to perform scraping operations. During scraper 8 operation, the height of the scraper 8 is stabilized by the cooperation of the stabilizing long shaft 7 with the upper guide rail 10 and lower guide rail 11, ensuring stable scraping and improving chain running stability. When the bearings connected to the bearing housing 1 of the drive shaft 3 and driven shaft 4 deviate axially due to wear or other reasons, if the distance measured from the first infrared detector 12 to the shaft end of the drive shaft 3 is set as D1, and the distance measured from the second infrared detector 13 to the shaft end of the driven shaft 4 is set as D2, when one shaft deviates to a value greater than the set value or range for D1 and D2, the difference signal is fed back to the controller. The controller then controls the correction mechanism 14 to correct the deviated shaft. The sign of the difference determines which side of the chain's correction mechanism is selected. When both shafts deviate by a certain value, both correction mechanisms simultaneously correct the deviation. This correction design prevents the chain from detaching from the gears due to excessive shaft deviation.

[0032] Specifically, while the stabilizing long shaft 7 improves the operational stability of chain 6, its presence also means that when either the driving shaft 3 or the driven shaft 4 deviates, the chain deviation angle (corresponding to a shorter chain segment) between the deviating shaft and the stabilizing long shaft 7 is larger than the traditional deviation angle (a longer chain segment between the driving and driven shafts). If the deviation is not corrected, it can more easily lead to chain detachment. This application, while improving chain stability, effectively prevents chain detachment, thereby reducing the probability of unplanned stops and improving work efficiency.

[0033] In one embodiment, the first infrared detector and the second infrared detector can be fixed on the cylinder body of the telescopic cylinder (which can be a cylinder or hydraulic cylinder, etc.) so that infrared light can shine on the end side of the drive shaft or driven shaft during detection.

[0034] In one embodiment, the lower end of the scraper is configured as an arc that curves in the direction of slag scraping for better slag scraping.

[0035] In one embodiment, the scraper 8 can be fixed to the stabilizing long shaft 7 via a connecting sleeve 15. The bottom of the connecting sleeve 15 is provided with a snap-fit ​​interface, and the scraper 8 is connected to the snap-fit ​​interface by bolts and nuts. The connecting sleeve 15 is provided with radial mounting holes, and the stabilizing long shaft 7 has multiple adjustment holes distributed along its circumferential direction to match the radial mounting holes. When it is necessary to adjust the scraper angle to adjust the slag scraping depth according to the actual processing situation, the scraper can be rotated so that the screw connects the radial mounting holes with the adjustment holes for adjusting the position. When adjusting the scraper, it is best to rotate it in the opposite direction of operation to avoid water accumulation at the bend.

[0036] In one embodiment, the treatment of petrochemical wastewater is highly dangerous, as it is prone to producing toxic and harmful gases, flammable and explosive gases, and foul odors. If repairs are carried out blindly after a problem occurs in the slag scraping device, it will seriously affect the safety of maintenance personnel. This application provides an odor detector 16 and an alarm 17 connected to the controller on one side of the chain 7. The detector can promptly sound an alarm after detecting an odor. On the one hand, it can remind maintenance personnel that it is not suitable for testing. On the other hand, it can also remind workshop personnel to evacuate in time when the machine is not shut down to ensure their own safety.

[0037] In one embodiment, the alarm 17 includes a light sensor and / or a buzzer.

[0038] In one embodiment, the drive shaft 3 and the driven shaft 4 are respectively fixed to the air flotation machine by bearing housing 1. The bearing housing 1 is provided with an elongated mounting hole arranged along the running direction. The bearing housing 1 is fixed by passing through the elongated mounting hole so that the installation position of the bearing housing 1 can be adjusted.

[0039] In one embodiment, the scraper 8 is a silicone plate.

[0040] In one embodiment, the chain 6 is provided with four stabilizing long shafts evenly distributed along its length, or more may be provided depending on the length of the chain.

[0041] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0042] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A deviation-proof intelligent adjustable safety scrapper device, characterized in that, The scraping slag device comprises a driving shaft and a driven shaft arranged on an air floating machine through bearing seats, the driving shaft is driven by a driving member, two chains are connected in parallel on the driving shaft and the driven shaft through gears, a stable long shaft is connected between the two chains in a vertical direction of movement, a plurality of stable long shafts are arranged along the direction of movement, a scraper is connected to each stable long shaft, a guide wheel is connected to each end of each stable long shaft, an upper guide rail and a lower guide rail cooperating with the guide wheels are arranged on the outside of each chain to enable the scraper to run stably with the chain, a first infrared detector and a second infrared detector are arranged on the outside of one chain at the end side of the driving shaft and the driven shaft to detect the deviation of the two shafts in the axial direction, and a deviation correction mechanism is arranged on the outside of both ends of the driving shaft and the driven shaft to correct the deviation when the two shafts deviate. The scraping slag device further comprises a controller, and the driving member, the first infrared detector, the second infrared detector and the deviation correction mechanism are connected to the controller.

2. The intelligent adjustable safety skimming device against deviation according to claim 1, characterized in that, The deviation correction mechanism adopts a telescopic cylinder, and a thrust bearing is connected to the end of the telescopic rod of the telescopic cylinder. The outer side surface of the thrust bearing protrudes from the outer side surface of the telescopic rod, or a groove is formed in the end of the driving shaft or the driven shaft for the end of the telescopic rod to extend into, and a movement gap is left between the telescopic rod and the groove.

3. The intelligent adjustable safety skimming device against deviation according to claim 1, characterized in that, The scraper is fixed to the stable long shaft through a connecting sleeve, a clamping interface is arranged at the bottom of the connecting sleeve, the scraper is connected to the clamping interface through a bolt and a nut, a radial mounting hole is arranged on the connecting sleeve, and a plurality of adjusting holes are distributed along the circumferential direction of the stable long shaft and matched with the radial mounting hole, so that the radial mounting hole and one of the adjusting holes are connected through a screw.

4. The intelligent adjustable safety skimming device against deviation according to claim 1, characterized in that, An odor detector and an alarm connected to the controller are further arranged on one side of the chain to alarm when an odor is detected.

5. The intelligent adjustable safety skimming device against deviation according to claim 4, characterized in that, The alarm comprises a light sensor and / or a buzzer.

6. The intelligent adjustable safety skimming device against deviation according to claim 1, characterized in that, The driving shaft and the driven shaft are respectively fixed on the air floating machine through bearing seats, a long strip mounting hole is arranged on the bearing seat along the direction of movement, and the bearing seat is fixed through the long strip mounting hole to adjust the mounting position of the bearing seat.

7. The intelligent adjustable safety skimming device against deviation according to claim 1, characterized in that, The lower end of the scraper is arranged as an arc bent towards the direction of scraping slag.

8. The intelligent adjustable safety skimming device against deviation according to claim 1, characterized in that, The scraper adopts a silica gel plate.

9. The intelligent adjustable safety skimming device against deviation according to claim 1, characterized in that, Four stable long shafts are uniformly arranged along the length direction of the chain.

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