Equipment current monitoring device
By designing a current monitoring device in the sedimentation tank scraper, the eccentricity is monitored by using the current change caused by the main shaft offset. Combined with structures such as the protective box and scraper bar, the problem of untimely detection of the scraper main shaft eccentricity is solved, and the stable operation and safety protection of the equipment are achieved.
Patent Information
- Application Number
- CN202422150132.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-09-03
AI Technical Summary
In the prior art, the sedimentation tank scraper fails to promptly detect when the main shaft is eccentric, resulting in damage to the equipment.
A current monitoring device for equipment was designed. The current change was caused by the contact between the main shaft offset and the limit rod. The eccentricity of the scraper main shaft was monitored using a current detector. The current detector was protected by a protective box to isolate it from the influence of the external environment. The scraper bar and sponge block were used to maintain the clarity of the visual window and prevent equipment wear.
Timely discovery and shutdown of equipment can reduce equipment damage, shorten downtime, improve equipment stability and safety, and reduce erosion and wear of current detectors caused by environmental factors.
Smart Images

Figure CN223413370U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of equipment monitoring, in particular to an equipment current monitoring device. Background Art
[0002] Current monitoring is used in electrical engineering to measure the current flowing in a circuit.
[0003] The sedimentation tank scraper is an important equipment for cleaning the sludge in the sedimentation tank in the sewage treatment system. In the existing technology, the scraper uses the center of the sedimentation tank as the rotation axis, drives the scraper arm to rotate through the drive device, and the tube plate scrapes the sludge into the sludge collection pit, and then discharges the sludge through the sludge discharge equipment, thereby removing the sludge from the bottom of the sedimentation tank.
[0004] The high-efficiency sedimentation tank scraper has no equipment monitoring and protection during operation. When there is a lot of sludge inside the sedimentation tank, the eccentricity of the main shaft cannot be discovered in time, resulting in damage to the scraper such as shaft tilt and main shaft breakage due to long-term operation. Utility Model Content
[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that when the scraper main shaft is eccentric, it is not discovered and rectified in time, resulting in the problem being magnified and the equipment being damaged.
[0006] In order to solve the above technical problems, the utility model provides an equipment current monitoring device.
[0007] In one embodiment of the present invention, it includes a sedimentation tank; two fixed brackets are fixedly connected to the top of the sedimentation tank; the two fixed brackets are arranged opposite to each other; drivers are installed at the ends of the two fixed brackets; a main shaft is installed at the bottom of the driver; two scraper arms are fixedly connected to the middle of the main shaft; the two scraper arms are arranged opposite to each other; a plurality of scrapers are fixed to the bottom of the scraper arm; a mud collecting trough is provided at the bottom of the sedimentation tank; a current detector is installed in the middle of the driver; a plurality of support rods are installed in the middle of the mud collecting trough; a plurality of support rods are fixedly connected to limit rods at their ends; the limit rods are arranged at the corresponding main shaft positions; the main shaft is offset and contacts the limit rod, so that the increased current is transmitted to the current detector, and monitoring by the current detector can timely detect the eccentricity problem of the main shaft of the scraper during long-term operation.
[0008] In one embodiment of the present invention, a protective box is fixedly connected to the middle of the driver; the current detector is installed inside the protective box; a protective door is hinged on the side wall of the protective box; a visual window is opened in the middle of the protective door; the protective box can effectively isolate the current detector from direct contact with the external environment, effectively reducing the danger caused by accidental touch or external factors, and in a mud scraping environment, the protective box can effectively prevent the harsh conditions of moisture and corrosive gases from eroding the current detector.
[0009] In one embodiment of the present utility model, two first springs are fixed to the bottom of the protective box; the two first springs are fixed inside the protective box; the two first springs are fixed to the side close to the protective door; the ends of the two first springs are fixed with scrapers; the ends of the scrapers are in contact with the surface of the protective door; the middle of the scraper is fixed with a pull rope; the middle of the pull rope passes through the top of the protective box; the pull rope is fixed to one side of the scraper; the scraper can effectively reduce the water mist or other impurities generated inside the visual window and effectively maintain the clarity of the visual window.
[0010] In one embodiment of the present invention, a sponge block is fixed to the bottom of the protective box; the sponge block is fixed to the bottom of the scraper; the sponge block can effectively reduce the accumulation of water droplets generated after water mist cleaning inside the protective box.
[0011] In one embodiment of the present invention, a plurality of sliding rods are slidably connected to the middle of the sponge block; the plurality of sliding rods are evenly distributed in the middle of the sponge block; a second spring is fixed to the end of the sliding rod; the other end of the second spring is fixed to the middle of the sponge block; the sliding rod can effectively absorb and disperse the impact force generated when the mud collecting trough is offset, effectively increase the stability of the mud collecting trough when it is offset, and effectively reduce equipment failure and downtime caused by the offset of the mud collecting trough.
[0012] In one embodiment of the present invention, an elastic cloth is fixed to the end of the sliding rod; the other end of the elastic cloth is fixed to the middle of the sponge block; the elastic cloth is arranged outside the second spring; the elastic cloth can effectively reduce the sludge splashing around the sliding rod during the scraping process, resulting in sludge adhering to the surface of the second spring.
[0013] In one embodiment of the present invention, a pulley is fixed to the end of the sliding rod; the pulley is fixed to the end away from the second spring; the pulley can effectively provide additional support to the main shaft, effectively disperse the vibration generated by the main shaft during operation, and effectively reduce the vibration amplitude during the operation of the scraper.
[0014] In one embodiment of the present invention, a rubber pad is installed in the middle of the pulley; the rubber pad is fixed to the middle of the pulley; the rubber pad can effectively reduce the friction generated by the direct contact between the pulley and the main shaft, and effectively reduce the problem of wear on the main shaft surface caused by friction.
[0015] The above technical solution of the utility model has the following advantages compared with the prior art:
[0016] The utility model discloses an equipment current monitoring device, which transmits the increased current to the current detector when the main shaft contacts the limit rod after the main shaft is offset. The monitoring by the current detector can timely detect the eccentricity problem of the main shaft of the scraper during long-term operation.
[0017] The equipment current monitoring device described in the utility model can effectively isolate the current detector from direct contact with the external environment through a protective box, effectively reducing the danger caused by accidental touch or external factors, and can effectively prevent the erosion of the current detector by harsh conditions of moisture and corrosive gases in a mud scraping environment through the protective box. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.
[0019] Figure 1 This is a three-dimensional diagram of an equipment current monitoring device of the utility model;
[0020] Figure 2 It is a structural diagram of the sedimentation tank in the utility model;
[0021] Figure 3 This is a schematic structural diagram of the limiting rod in the utility model;
[0022] Figure 4 It is a structural diagram of the protective box in the utility model;
[0023] Figure 5 It is a structural diagram of the scraper in the utility model;
[0024] Figure 6 It is a structural diagram of the second spring in the utility model;
[0025] Explanation of the reference numerals in the specification: 1. Sedimentation tank; 11. Fixed bracket; 12. Drive; 13. Main shaft; 14. Scraper arm; 15. Scraper; 16. Mud collecting trough; 17. Current detector; 18. Support rod; 19. Limit rod; 2. Protective box; 21. Protective door; 22. Visual window; 3. First spring; 31. Scraper strip; 32. Pull rope; 4. Sponge block; 5. Sliding rod; 51. Second spring; 6. Elastic cloth; 7. Pulley; 8. Rubber pad. DETAILED DESCRIPTION
[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.
[0027] Reference Figures 1 to 5 As shown, a current monitoring device for equipment of the present invention includes a sedimentation tank 1; two fixed brackets 11 are fixedly connected to the top of the sedimentation tank 1; the two fixed brackets 11 are arranged oppositely; a driver 12 is installed at the ends of the two fixed brackets 11; a main shaft 13 is installed at the bottom of the driver 12; two scraping arms 14 are fixedly connected to the middle of the main shaft 13; the two scraping arms 14 are arranged oppositely; a plurality of scrapers 15 are fixedly connected to the bottom of the scraping arm 14; a mud collecting trough 16 is opened at the bottom of the sedimentation tank 1; a current detector 17 is installed in the middle of the driver 12; a plurality of support rods 18 are installed in the middle of the mud collecting trough 16; the ends of the plurality of support rods 18 are fixedly connected to limit rods 19; the limit rods 19 are arranged at the positions corresponding to the main shaft 13; when working, the main shaft 13 is driven to rotate by the driver 12, and as the main shaft 13 rotates, the two scraping arms 14 drive the plurality of scrapers 15 at the bottom to rotate around the inside of the sedimentation tank 1. After the raw water is settled in the sedimentation tank 1, it is pushed by the plurality of scrapers 15 It slowly drips along the pool into the central sludge collecting tank 16, and the sludge is discharged through the sludge discharge pipe in the sludge collecting tank 16. The current display on the scraper device is connected to the computer in the main control room, and the scraper working current is observed through the current detector 17. During the scraping process, once there is a lot of sludge inside the sedimentation tank 1, the main shaft 13 eccentrically hits the limit rod 19, and the scraper operating current will become larger. The equipment is shut down for inspection in time through the current abnormality. The main shaft 13 is offset and contacts the limit rod 19 to transmit the increased current to the current detector 17. Monitoring through the current detector 17 can timely detect the eccentricity of the main shaft 13 of the scraper during long-term operation, and can effectively reduce the problem of breakage and damage of scraper components caused by failure to discover and rectify in time, effectively reduce the expansion of damage leading to increased time for equipment maintenance, effectively reduce the extended shutdown time of the sedimentation tank 1 leading to a decrease in production efficiency, reduce the reduction in sewage discharge from other parts and affect environmental protection work, and effectively reduce the occurrence of safety accidents caused by extended maintenance time.
[0028] Reference Figure 1 、 Figure 2 、 Figure 4 、 Figure 5As shown, the middle of the driver 12 is fixed with a protective box 2; the current detector 17 is installed inside the protective box 2; the side wall of the protective box 2 is hinged with a protective door 21; a visual window 22 is opened in the middle of the protective door 21; when working, the current detector 17 is placed inside the protective box 2, and after the protective door 21 is closed, the display data of the internal current detector 17 can be directly observed through the visual window 22. The current detector 17 is protected by the protective box 2 to prevent dust and impurities in the outside air from contacting the surface of the current detector 17. The protective box 2 can effectively isolate the current detector 17 from the outside air. 17 is in direct contact with the external environment, effectively reducing the danger caused by accidental touch or external factors, and in the mud scraping environment, the protective box 2 can effectively block the erosion of the current detector 17 by the harsh conditions of moisture and corrosive gas, effectively protecting the internal components of the current detector 17 from damage, and the stable environment inside the protective box 2 can enable the current detector 17 to maintain working stability, effectively reduce the measurement errors caused by environmental factors, effectively increase the accuracy of the detection results, and the situation inside the protective box 2 and the data displayed by the current detector 17 can be intuitively observed through the visual window 22.
[0029] Reference Figure 2 、 Figure 4 、 Figure 5 As shown, the bottom of the protective box 2 is fixed with two first springs 3; the two first springs 3 are fixed to the inside of the protective box 2; the two first springs 3 are fixed to the side close to the protective door 21; the ends of the two first springs 3 are fixed with scrapers 31; the ends of the scrapers 31 fit the surface of the protective door 21; the middle of the scraper 31 is fixed with a pull rope 32; the middle of the pull rope 32 passes through the top of the protective box 2; the pull rope 32 is fixed to one side of the scraper 31; during operation, when the current detector 17 is running for a long time, a temperature difference is generated between the inside and the outside, and fog will accumulate on the surface of the visual window 22. Pulling the pull rope 32 upwards will cause the scraper 31 to move upward at the same time, and the first The spring 3 generates elastic stretching as the scraper 31 moves, and the end of the scraper 31 fits against the surface of the protective door 21 to clean the inside of the visual window 22. The pull rope 32 is loosened, and the scraper 31 is reset by the rebound of the first spring 3. The scraper 31 can effectively reduce the water mist or other impurities generated inside the visual window 22, effectively maintain the clarity of the visual window 22, effectively reduce the obstruction inside the visual window 22 that makes it impossible to observe the operating status of the current detector 17, effectively increase the safety and reliability of the equipment, and effectively reduce the corrosion and damage to the visual window 22 caused by long-term accumulated impurities, effectively extending the service life of the visual window 22.
[0030] Reference Figure 5As shown, a sponge block 4 is fixed to the bottom of the protective box 2; the sponge block 4 is fixed to the bottom position of the scraper 31; when working, when the scraper 31 scrapes the inside of the visual window 22, the internal water mist is scraped off and slides down, and the sliding water is absorbed by the sponge block 4. The sponge block 4 can effectively reduce the water droplets generated after the water mist is cleaned and fall into the protective box 2 to produce accumulation. The effective absorption of water droplets can reduce the moisture generated by water droplets inside the protective box 2, effectively reduce the damage caused by the humid environment inside the protective box 2 to the current detector 17, and effectively make the internal water droplets dry quickly.
[0031] Reference Figure 1 、 Figure 3 、 Figure 6 As shown, the middle part of the sponge block 4 is slidably connected with multiple slide bars 5; the multiple slide bars 5 are equidistantly distributed in the middle part of the sponge block 4; the end of the slide bar 5 is fixedly connected to a second spring 51; the other end of the second spring 51 is fixedly connected to the middle part of the sponge block 4; during operation, when the main shaft 13 is offset, it first contacts the end of the slide bar 5, and when subjected to the pressure of the main shaft 13, the slide bar 5 slides in the middle of the sponge block 4, and at the same time, the second spring 51 elastically contracts as the slide bar 5 slides, and the offset of the main shaft 13 is buffered by the end of the slide bar 5. The slide bar 5 can effectively absorb and disperse the impact force generated when the mud collecting tank 16 is offset, and can effectively increase the stability of the mud collecting tank 16 when it is offset, effectively reduce equipment failure and downtime caused by the offset of the mud collecting tank 16, and can effectively protect the mud collecting tank 16 through the slide bar 5 to maintain a stable mud scraping effect, thereby effectively increasing the overall performance and reliability of the equipment.
[0032] Reference Figure 3 As shown, the end of the sliding rod 5 is fixed with an elastic cloth 6; the other end of the elastic cloth 6 is fixed to the middle of the sponge block 4; the elastic cloth 6 is arranged on the outside of the second spring 51; during operation, when the sliding rod 5 slides in the middle of the sponge block 4, the second spring 51 is protected by the elastic cloth 6 to prevent the silt from directly contacting the surface of the second spring 51. The elastic cloth 6 can effectively reduce the sludge splashing around the sliding rod 5 during the scraping process, resulting in sludge adhering to the surface of the second spring 51, effectively reducing the problem of increased wear caused by sludge adhering to the surface of the second spring 51, and can effectively reduce the sludge adhering to the surface of the second spring 51 to change the elastic characteristics, and can effectively reduce the performance degradation of the second spring 51, thereby maintaining the working stability of the second spring 51.
[0033] Reference Figure 2 and Figure 6As shown, the end of the slide rod 5 is fixed with a pulley 7; the pulley 7 is fixed at the end away from the second spring 51; when working, the pulley 7 is in contact with the surface of the main shaft 13 to provide additional support to the main shaft 13. When the main shaft 13 is running and rotating, the pulley 7 rotates simultaneously with the main shaft 13. The pulley 7 can effectively provide additional support to the main shaft 13, effectively disperse the vibration generated by the main shaft 13 during operation, and effectively reduce the vibration amplitude of the scraper during operation. Moreover, the pulley 7 slides on the surface as the main shaft 13 rotates, which can effectively reduce the friction between the pulley 7 and the main shaft 13, and can reduce the problem of scratches or wear on the surface of the main shaft 13 due to friction.
[0034] Reference Figure 2 and Figure 6 As shown, a rubber pad 8 is installed in the middle of the pulley 7; the rubber pad 8 is fixed to the middle of the pulley 7; during operation, when the main shaft 13 deviates, the pulley 7 and the main shaft 13 are brought into contact through the rubber pad 8, and the rubber pad 8 can effectively reduce the friction generated by the direct contact between the pulley 7 and the main shaft 13, effectively reduce the problem of wear on the surface of the main shaft 13 caused by friction, and can reduce the impact generated by the direct contact between the main shaft 13 and the pulley 7 through the flexible material of the rubber pad 8, effectively increasing the integrity of the surface of the main shaft 13.
[0035] Working principle: The main shaft 13 is driven to rotate by the driver 12. As the main shaft 13 rotates, the two scraping arms 14 drive the multiple scrapers 15 at the bottom to rotate around the inside of the sedimentation tank 1. After the raw water settles in the sedimentation tank 1, it slowly drips along the tank to the central sludge collecting tank 16 under the push of the multiple scrapers 15. The sludge is discharged through the sludge discharge pipe in the sludge collecting tank 16. The current display on the scraping device is connected to the computer in the main control room, and the current detector 17 is used to observe the working current of the scraping device. During the scraping process, once there is too much sludge in the sedimentation tank 1, the main shaft 13 eccentrically hits the sludge collecting tank 16. The limit rod 19, the scraper running current will become larger, through the current abnormality, the equipment will be stopped for inspection in time, the current detector 17 is placed inside the protective box 2, after the protective door 21 is closed, the internal current detector 17 display data can be directly observed through the visual window 22, the current detector 17 is protected by the protective box 2, and the dust and impurities in the outside air are prevented from contacting the surface of the current detector 17. When the current detector 17 is running for a long time, a temperature difference is generated between the inside and the outside, and fog will accumulate on the surface of the visual window 22. Pull the rope 32 upward When the pull cord 32 is released, the scraper 31 is reset by the rebound of the first spring 3. When the scraper 31 scrapes the inside of the visual window 22, the internal water mist is scraped off and then slides down. The sponge block 4 absorbs the water that has slipped down. When the main shaft 13 deviates, it first contacts the end of the slide bar 5. When the slide bar 5 is pressed by the main shaft 13, it moves in the middle of the sponge block 4. The second spring 51 slides, and at the same time, the second spring 51 elastically contracts as the slide bar 5 slides, and the deviation of the main shaft 13 is buffered by the end of the slide bar 5. When the slide bar 5 slides in the middle of the sponge block 4, the second spring 51 is protected by the elastic cloth 6 to prevent silt from directly contacting the surface of the second spring 51. The pulley 7 is fitted with the surface of the main shaft 13 to provide additional support for the main shaft 13. When the main shaft 13 is running and rotating, the pulley 7 rotates at the same time as the main shaft 13. When the main shaft 13 deviates, the pulley 7 is brought into contact with the main shaft 13 through the rubber pad 8.
[0036] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.
Claims
1. An equipment current monitoring device, comprising a sedimentation tank (1); characterized in that: Two fixed brackets (11) are fixedly connected to the top of the sedimentation tank (1); the two fixed brackets (11) are arranged opposite to each other; the ends of the two fixed brackets (11) are installed with drivers (12); the bottom of the driver (12) is installed with a main shaft (13); the middle of the main shaft (13) is fixedly connected with two scraping arms (14); the two scraping arms (14) are arranged opposite to each other; the bottom of the scraping arms (14) is fixedly connected with a plurality of scrapers (15); a mud collecting trough (16) is provided at the bottom of the sedimentation tank (1); a current detector (17) is installed in the middle of the driver (12); a plurality of support rods (18) are installed in the middle of the mud collecting trough (16); the ends of the plurality of support rods (18) are fixedly connected with limit rods (19); the limit rods (19) are arranged at positions corresponding to the main shaft (13).
2. The device according to claim 1, wherein: A protective box (2) is fixedly connected to the middle of the driver (12); the current detector (17) is installed inside the protective box (2); a protective door (21) is hingedly connected to the side wall of the protective box (2); and a visual window (22) is opened in the middle of the protective door (21).
3. The device according to claim 2, wherein: Two first springs (3) are fixed to the bottom of the protective box (2); the two first springs (3) are fixed inside the protective box (2); the two first springs (3) are fixed to a side close to the protective door (21); the ends of the two first springs (3) are fixed to a scraper (31); the ends of the scraper (31) are in contact with the surface of the protective door (21); a pull rope (32) is fixed to the middle of the scraper (31); the middle of the pull rope (32) passes through the top of the protective box (2); the pull rope (32) is fixed to one side of the scraper (31).
4. The device current monitoring device according to claim 3, characterized in that: A sponge block (4) is fixedly connected to the bottom of the protection box (2); the sponge block (4) is fixedly connected to the bottom position of the scraper strip (31).
5. The device for monitoring equipment current according to claim 4, characterized in that: The middle of the sponge block (4) is slidably connected to a plurality of slide rods (5); the plurality of slide rods (5) are evenly distributed in the middle of the sponge block (4); a second spring (51) is fixed to the end of the slide rod (5); the other end of the second spring (51) is fixed to the middle of the sponge block (4).
6. The device current monitoring device according to claim 5, characterized in that: An elastic cloth (6) is fixed to the end of the slide rod (5); the other end of the elastic cloth (6) is fixed to the middle of the sponge block (4); and the elastic cloth (6) is arranged outside the second spring (51).
7. The device current monitoring device according to claim 6, characterized in that: A pulley (7) is fixedly connected to the end of the slide rod (5); the pulley (7) is fixedly connected to an end away from the second spring (51).
8. The device for monitoring equipment current according to claim 7, characterized in that: A rubber pad (8) is installed in the middle of the pulley (7); the rubber pad (8) is fixed to the middle of the pulley (7).