A scraper blade balance detection device of a chain scraper and the scraper

Abstract

The utility model belongs to the technical field of mud scraper auxiliary equipment, concretely relates to a chain plate mud scraper scraper balance detection device. It includes: two protective cover, set in the upper of sedimentation tank, two protective cover are located the upper of the both ends of scraper of mud scraper respectively, two swing rods are connected in the protective cover respectively, and swing rod bottom end stretches into the sedimentation tank, and corresponds with the end of scraper, two sensors are arranged in the protective cover respectively, and sensor is located swing rod side away from scraper, is used for sending detection signal after being covered by swing rod. The utility model discloses be used to solve the problem that scraper detection is easy to damage and is troublesome to replace. According to the time difference of the order of two sensor detection signals, whether the both ends of the scraper move synchronously can be judged, and the synchronism is further judged, and the sensor is located in the protective cover, the protective cover is located above the sedimentation tank, the moisture in the pool and the corrosion are avoided, the service life of the sensor is prolonged, and the maintenance replacement is more convenient.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for sludge scrapers, specifically relating to a scraper balance detection device for a chain plate sludge scraper and a sludge scraper. Background Technology

[0002] A sludge scraper is a specialized sludge removal device used to remove sludge from the bottom of sedimentation tanks and skim off scum from the surface. It is widely used in urban wastewater treatment plants, waterworks, and industrial wastewater treatment facilities. The non-metallic chain-type sludge scraper, employing a chain-plate drive structure, combines surface skimming and bottom sludge scraping functions, making it suitable for rectangular sedimentation tanks in urban wastewater treatment plants. During operation, the scraping components move along the bottom of the tank, simultaneously removing scum and deposited sludge.

[0003] Currently, when testing the synchronicity of the movement of the two ends of the scraper in a non-metallic chain scraper, a scraper balance detection device sensor is usually used. This sensor is placed about 30 cm above the scraper, with one on each side. When the scraper rotates and passes over the sensor, it can be determined whether the synchronicity of the movement of the two ends of the scraper meets the requirements.

[0004] However, because the sensors are located inside the tank, the high humidity and corrosiveness shorten their lifespan and make replacement difficult, requiring manual access using ladders and other tools. This significantly increases maintenance time. Furthermore, if a sensor fails, it takes at least 48 hours from the time the equipment breaks down to the time a replacement sensor is purchased, impacting the overall operation of the wastewater treatment plant. Utility Model Content

[0005] To address the shortcomings of existing technologies, a scraper balance detection device and a scraper for a chain plate scraper are provided to solve the problem of scraper damage and troublesome replacement.

[0006] On the one hand, the technical solution of this utility model to solve the above-mentioned technical problems is as follows: a chain plate scraper scraper balance detection device, which includes: Two protective covers are installed above the sedimentation tank, with the two protective covers located above the scraper blades of the sludge scraper at both ends; Two swing arms are rotatably connected to the protective cover, with the bottom end of the swing arms extending into the sedimentation tank and corresponding to the end of the scraper. Two sensors are respectively installed in the protective cover. The sensors are located on the side of the swing arm away from the scraper and are used to emit detection signals after being blocked by the swing arm.

[0007] Compared with existing technologies, the above technical solutions have the following beneficial effects: By judging the time difference between the sequential detection signals of the two sensors, it can be determined whether the two ends of the scraper move synchronously, and thus judge the synchronicity. The sensor is located in a protective cover, which is located above the sedimentation tank, avoiding moisture and corrosion in the tank and extending the service life of the sensor. Moreover, being located above the sedimentation tank and on the ground makes maintenance and replacement more convenient.

[0008] Based on the above technical solution, the embodiments of this application can be further improved as follows: In one embodiment, the device further includes two first damping devices, which are disposed on the side of the swing arm near the scraper to restrict the swing arm from returning to its initial position.

[0009] By setting a first damping device, the swing arm can quickly return to its initial position after the scraper passes by, limited by the first damping device.

[0010] In one embodiment, two second damping devices are further included, which are disposed opposite to the first damping device and are located on both sides of the swing arm.

[0011] The second damping device, positioned opposite the first damping device, restricts the position of the swing arm after it returns to its original position, allowing it to quickly return to its initial position for inspection of the next scraper.

[0012] In one embodiment, the first damping device and the second damping device have the same structure, and the first damping device includes: A mounting base is installed inside the protective cover; An elastic damping element has one end connected to the fixed base and the other end positioned along the direction of scraper movement, pointing towards the swing arm.

[0013] In one embodiment, the system further includes a controller connected to the two sensors. The controller is used to determine the time difference between the signals transmitted by the two sensors. When the time difference is greater than a preset time threshold, the controller issues an alarm signal.

[0014] The controller connects to the sensor to receive the detection signal and determines the time difference between the two points to determine whether it is within the appropriate range and whether it is balanced. If it is unbalanced, an alarm signal is issued.

[0015] In one embodiment, the controller includes: A data processing module is connected to the two sensors. The data storage module is used to send an alarm signal by the data processing module when the amount of stored data exceeds a preset capacity threshold.

[0016] By combining the data storage module and the data processing module, the lifespan of the sensor can be statistically analyzed. When the number of times the sensor is used reaches a certain level, an alarm signal is sent, thereby avoiding a maintenance gap after the sensor is damaged and replaced.

[0017] In one embodiment, the system further includes an alarm module connected to the controller, the alarm module being used to issue an audible and visual alarm based on the alarm signal.

[0018] In one embodiment, the sensor is a photoelectric sensor.

[0019] On the other hand, this embodiment also includes a sludge scraper, which includes the balance detection device as described above. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 for Figure 1 A side view structural diagram.

[0023] Figure 3 This is a block diagram showing the connection between the controller and the sensor in this utility model.

[0024] Figure label: 1. Protective cover; 2. Scraper; 3. Swing rod; 4. Sensor; 5. First damping device; 6. Second damping device; 501. Fixed base; 502. Elastic damping component. Detailed Implementation

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention. It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0026] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example 1 like Figure 1-2 As shown, the present invention provides a balance detection device for a chain plate scraper scraper 2, which includes: two protective covers 1, two swing rods 3 and two sensors 4.

[0030] Two protective covers 1 are installed above the sedimentation tank. The two protective covers 1 are respectively located above the two ends of the scraper 2 of the sludge scraper. The protective covers 1 serve a protective function. Two swing rods 3 are rotatably connected to the protective covers 1. The bottom end of the swing rod 3 extends out of the protective cover 1, that is, the bottom end of the protective cover 1 forms an opening for the swing rod 3 to extend out. The bottom end of the swing rod 3 extends into the sedimentation tank below, corresponding to the end of the scraper 2. The correspondence between the bottom end of the swing rod 3 and the end of the scraper 2 means that the scraper 2 can ensure that both ends can contact the bottom end of the swing rod 3 during the movement and drive the swing rod 3 to rotate.

[0031] Two sensors 4 are respectively disposed in the protective cover 1. The sensors 4 are photoelectric sensors. The protective cover 1 is used to protect the sensors 4. The sensors 4 are located on the side of the swing arm 3 away from the scraper 2. They are used to emit detection signals after being blocked by the swing arm 3. When the scraper 2 moves, it pushes the bottom end of the swing arm 3, causing the swing arm 3 to rotate, so that the swing arm 3 can block the sensing end of the sensor 4, thereby generating a detection signal.

[0032] Based on the time difference between the detection signals of the two sensors 4, it can be determined whether the two ends of the scraper 2 move synchronously, and thus determine the synchronicity. The sensor 4 is located in the protective cover 1, which is located above the sedimentation tank, avoiding moisture and corrosion in the tank and extending the service life of the sensor 4. Moreover, being located above the sedimentation tank makes maintenance and replacement more convenient.

[0033] To ensure that the swing arm 3 returns to its original position accurately, two first damping devices 5 are also included. The first damping devices 5 are disposed on the side of the swing arm 3 near the scraper 2. The two first damping devices 5 are disposed corresponding to the two swing arms 3 and are used to limit the swing arm 3 from returning to its initial position.

[0034] Specifically, the first damping device 5 is located on the plane of the swing direction of the swing arm 3 and is located on the side closer to the scraper 2, so that the scraper 2 returns to its original position accurately after passing by. That is, when the scraper 2 moves to a position where it does not contact the swing arm 3, the swing arm 3 needs to return to its initial position. When the swing arm 3 passes the scraper 2, it is restricted by the first damping device 5 and quickly returns to its initial position.

[0035] To further limit the swing arm 3 and ensure that the swing arm 3 returns to its position quickly, two second damping devices 6 are also included. The second damping devices 6 are arranged opposite to the first damping device 5, that is, the second damping devices 6 are located on the side of the swing arm 3 away from the scraper 2, so that the second damping devices 6 and the first damping devices 5 are respectively arranged on both sides of the swing arm 3, and the second damping devices 6 and the first damping devices 5 are located on the same plane of the swing direction of the swing arm 3.

[0036] The second damping device 6, which is positioned opposite the first damping device 5, restricts the position of the swing arm 3 after it returns to its original position. This allows the swing arm 3 to quickly return to its initial position for inspection of the next scraper 2.

[0037] Specifically, the first damping device 5 and the second damping device 6 have the same structure. The first damping device 5 includes a fixed base 501 and an elastic damping element 502.

[0038] The fixed base 501 is installed in the protective cover 1. One end of the elastic damping element 502 is connected to the fixed base 501, and the other end is set along the movement direction of the scraper 2 and points towards the swing rod 3. The elastic damping element 502 can be implemented using a spring or a two-way damper, with one end connected to the fixed base 501 and the other end connected to the swing arm 3.

[0039] like Figure 3As shown, in this embodiment, a controller is also included. The controller can be installed in the protective cover 1. The controller is connected to the two sensors 4. The controller is used to determine the time difference between the detection signals transmitted by the two sensors 4. That is, when the sensor 4 is blocked and sends a detection signal to the controller, the controller can determine the time difference between the two detection signals. When the time difference is greater than a preset time threshold, the controller issues an alarm signal to determine whether it is within a suitable range and whether it is balanced. At this time, it indicates that the two ends of the scraper 2 are not moving synchronously.

[0040] Specifically, the controller includes a data processing module and a data storage module. The controller can be implemented using a programmable logic controller or a microcontroller, etc. The data processing module is a main processing module such as a CPU, and the data storage module is a module that stores data. At the same time, an external power supply provides power to the controller.

[0041] The data processing module is connected to the two sensors 4 and is used to receive and process the signals transmitted by the sensors 4. The data storage module is used to send an alarm signal when the amount of stored data exceeds a preset capacity threshold.

[0042] By utilizing the data storage module and data processing module in conjunction, the lifespan of sensor 4 can be statistically analyzed. When sensor 4 reaches a certain usage count, the stored data volume in the data storage module is used to determine when it reaches a certain threshold. This triggers an alarm signal, preventing maintenance gaps after sensor 4 is damaged and replaced. This allows for early replacement of sensor 4, avoiding excessive downtime caused by replacement only after failure.

[0043] In this embodiment, an alarm module connected to the controller is also included. The alarm module is used to issue an audible and visual alarm based on the alarm signal. The alarm module can be an audible and visual alarm device. When the alarm signal is transmitted to the audible and visual alarm device, it issues an alarm to remind the operator.

[0044] It also includes a display interface module connected to the controller, through which input operations such as data modification and display output operations can be performed on the controller.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A scraper balance detection device for a chain plate scraper, characterized in that, include: Two protective covers are installed above the sedimentation tank, with the two protective covers located above the scraper blades of the sludge scraper at both ends; Two swing arms are rotatably connected to the protective cover, with the bottom end of the swing arms extending into the sedimentation tank and corresponding to the end of the scraper. Two sensors are respectively installed in the protective cover. The sensors are located on the side of the swing arm away from the scraper and are used to emit detection signals after being blocked by the swing arm.

2. The chain plate scraper scraper balance detection device according to claim 1, characterized in that, It also includes two first damping devices, which are disposed on the side of the swing arm near the scraper to limit the swing arm from returning to its initial position.

3. The chain plate scraper scraper balance detection device according to claim 2, characterized in that, It also includes two second damping devices, which are arranged opposite to the first damping device and are located on both sides of the swing arm.

4. The chain plate scraper scraper balance detection device according to claim 3, characterized in that, The first damping device and the second damping device have the same structure. The first damping device includes: A mounting base is installed inside the protective cover; An elastic damping element has one end connected to the fixed base and the other end positioned along the direction of scraper movement, pointing towards the swing arm.

5. The chain plate scraper scraper balance detection device according to claim 1, characterized in that, It also includes a controller, which is connected to the two sensors. The controller is used to determine the time difference between the signals transmitted by the two sensors. When the time difference is greater than a preset time threshold, the controller issues an alarm signal.

6. The chain plate scraper scraper balance detection device according to claim 5, characterized in that, The controller includes: A data processing module is connected to the two sensors. The data storage module is used to send an alarm signal by the data processing module when the amount of stored data exceeds a preset capacity threshold.

7. The chain plate scraper scraper balance detection device according to claim 5, characterized in that, It also includes an alarm module connected to the controller, which is used to issue an audible and visual alarm based on the alarm signal.

8. The chain plate scraper scraper balance detection device according to claim 1, characterized in that, The sensor is a photoelectric sensor.

9. A sludge scraper, characterized in that, Includes the balance detection device as described in any one of claims 1-8.

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