Non-metal chain type mud scraper traction chain tightness monitoring device

Abstract

The utility model relates to a non -metal chain formula mud scraper traction chain tightness monitoring device belongs to water treatment equipment technical field, and this device includes contact lever, inductive rod and guide pipe, and the guide pipe is fixed on the pool wall, and the pool wall is provided with a plurality of displacement sensors in the vertical direction interval in the upper portion of guide pipe, and inductive rod is active and is worn in guide pipe, and inductive rod top is equipped with the inductive block that uses the displacement sensor cooperation, and contact lever one end is hinged with the bottom of inductive rod and the other end is horizontally located below the traction chain, and contact lever middle part is equipped with the pivot, when the traction chain is drooping and presses down contact lever, contact lever rotates around the pivot to drive inductive rod to go up, adopt this structure, through contact lever contact traction chain to reflect the drooping situation of chain, and the greater the drooping distance is, the greater inductive rod goes up distance is, makes inductive block be inducted by the displacement sensor on different height position, and the drooping degree of chain is monitored and reflected in real time, and the tension condition is high in accuracy, and the working condition information is convenient for personnel monitoring.

Description

Technical Field

[0001] This utility model belongs to the technical field of water treatment equipment, and specifically relates to a non-metallic chain scraper traction chain tension monitoring device. Background Technology

[0002] Non-metallic chain scrapers are used in wastewater treatment plants for continuous sludge removal from the bottom of horizontal flow sedimentation tanks, grit chambers, and oil separators. They can also continuously remove oil or scum from the water surface, making them particularly suitable for sedimentation tanks with a large amount of sediment. The motor reducer of the non-metallic chain scraper drives the main shaft through chain drive, which in turn drives the sprocket on the main shaft to run the traction chain along the long side of the tank. The scraper connected to the traction chain moves accordingly. When the scraper reaches the bottom of the tank, it scrapes the sediment to the sludge discharge pipe and discharges it. When the scraper reaches the surface of the tank, it scrapes the scum to the skimming pipe and discharges it, thus achieving the functions of sludge scraping and scum scraping.

[0003] Non-metallic chains will wear down during long-term operation, resulting in chain loosening and sagging. In severe cases, serious accidents such as tooth skipping, chain detachment, and chain breakage may occur, causing equipment to malfunction. Currently, there are no scientific monitoring measures for chain tension. The tightness is mostly judged indirectly by experience or by observing some phenomena after the chain becomes loose, which has poor accuracy and cannot monitor the equipment operation and chain tension in real time.

[0004] Therefore, there is an urgent need for a non-metallic chain scraper traction chain tension monitoring device that can monitor and provide early warning of chain tension in real time with high accuracy. Utility Model Content

[0005] This invention provides a non-metallic chain-type scraper traction chain tension monitoring device to solve the technical problem of inaccurate monitoring of scraper traction chain tension in the prior art.

[0006] This utility model is achieved through the following technical solution: a non-metallic chain-type sludge scraper traction chain tension monitoring device, including a contact rod, a sensing rod, and a guide tube. The guide tube is fixed to the pool wall. Multiple displacement sensors are arranged at intervals along the vertical direction above the guide tube on the pool wall. The sensing rod movably passes through the guide tube. The top of the sensing rod is provided with a sensing block that cooperates with the displacement sensor. One end of the contact rod is hinged to the bottom end of the sensing rod, and the other end is horizontally located below the traction chain. A rotating shaft is provided in the middle of the contact rod. When the traction chain droops and presses down on the contact rod, the contact rod rotates around the rotating shaft to drive the sensing rod to move upward.

[0007] To better realize this utility model, the above structure is further optimized by including an installation plate. The installation plate is fixed on the pool wall and located above the guide tube. The installation plate is provided with four monitoring points at intervals along the vertical direction, namely point B, point C, point E and point F from bottom to top. Each monitoring point is provided with a displacement sensor.

[0008] To better realize this utility model, the above structure is further optimized. The mounting plate is also equipped with a controller, and the displacement sensor is connected to the terminal through the controller.

[0009] To better realize this utility model, the above structure is further optimized by including a warning light, which is electrically connected to the displacement sensor corresponding to point E via a controller.

[0010] To better realize this utility model, the above structure is further optimized by including a stop switch. The stop switch is electrically connected to the displacement sensor corresponding to point F through the controller to forcibly shut down the sludge scraper.

[0011] To better realize this utility model, the above structure is further optimized by including a limiting block. The limiting block is fixed on the sensing rod and located below the sensing block. When the bottom wall of the limiting block abuts against the bottom wall of the guide tube, the contact rod is horizontally positioned.

[0012] To better realize this utility model, further optimizations are made to the above structure. The sensing rod includes a connecting rod and a vertical rod. One end of the connecting rod is hinged to one end of the contact rod, and the other end is hinged to the bottom end of the vertical rod. The guide tube passes through the vertical rod, and the sensing block and the limiting block are both disposed on the vertical rod.

[0013] To better realize this utility model, the above structure is further optimized, and the sensing block is a metal block.

[0014] To better realize this utility model, further optimizations are made to the above structure, wherein the contact rod, connecting rod and upright are all non-metallic rods.

[0015] Compared with the prior art, this utility model has the following advantages: This utility model provides a non-metallic chain-type sludge scraper traction chain tension monitoring device, which includes a contact rod, a sensing rod, and a guide tube. The guide tube is fixed to the pool wall, and multiple displacement sensors are spaced vertically above the guide tube on the pool wall. The sensing rod moves upward through the guide tube, and a sensing block is provided at the top of the sensing rod to cooperate with the displacement sensors. One end of the contact rod is hinged to the bottom end of the sensing rod, and the other end is horizontally located below the traction chain. A rotating shaft is provided in the middle of the contact rod. When the traction chain droops and presses down on the contact rod, the contact rod rotates around the rotating shaft to drive the sensing rod upward. With this structure, the drooping of the chain is reflected by the contact rod contacting the traction chain. The greater the drooping distance, the greater the upward movement distance of the sensing rod, so that the sensing block is sensed by the displacement sensors at different height positions, thereby monitoring and reflecting the degree of drooping and tension of the chain in real time. It has high accuracy and is convenient for personnel to monitor the working conditions, making this utility model more practical. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the non-metallic chain scraper traction chain tension monitoring device in this utility model; Figure 2 This is a schematic diagram of the traction chain drooping; Figure 3 This is a schematic diagram showing the correspondence between the sensing block and the displacement sensor at point E. Figure 4 This is a control principle framework diagram of the non-metallic chain scraper traction chain tension monitoring device in this utility model.

[0018] In the picture: 1-Contact rod; 2-Guide tube; 3-Displacement sensor; 4-Sensing block; 5-Traction chain; 6-Rotating shaft; 7-Mounting plate; 8-Monitoring point; 9-Controller; 10-Warning light; 11-Stop switch; 12-Limit block; 13-Connecting rod; 14-Upright pole; 15-Terminal. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Example 1: In this embodiment, a non-metallic chain scraper traction chain tension monitoring device is provided, such as... Figure 1 As shown, the system includes a contact rod 1, a sensing rod, and a guide tube 2. Specifically, the guide tube 2 is fixed to the pool wall and is used to guide the sensing rod to move vertically up and down. Multiple displacement sensors 3 are spaced vertically along the pool wall above the guide tube 2. The sensing rod moves through the guide tube 2. The top of the sensing rod is equipped with a sensing block 4 that works with the displacement sensor 3. One end of the contact rod 1 is hinged to the bottom end of the sensing rod, and the other end is horizontally located below the traction chain 5. A rotating shaft 6 is provided in the middle of the contact rod 1. When the traction chain 5 droops and presses down on the contact rod 1, the contact rod 1 rotates around the rotating shaft 6 to drive the sensing rod to move upward. The moving sensing block 4 corresponds to the displacement sensor 3 at different height positions, thereby reflecting the drooping status of the traction chain 5.

[0023] With this structure, the sag of the chain is reflected by the contact rod 1 contacting the traction chain 5. The greater the sag distance, the greater the upward movement of the sensing rod, so that the sensing block 4 is sensed by the displacement sensor 3 at different height positions. This allows for real-time monitoring and reflection of the sag and tension of the chain, with high accuracy, making it easier for personnel to monitor working conditions and enhancing the practicality of this invention.

[0024] It is worth noting that the traction chain 5 of the non-metallic chain scraper is a ring structure on a vertical plane in the pool. The aforementioned contact rod 1 is located below the traction chain 5, that is, below the traction chain 5 on the side closer to the liquid surface in the pool. During the operation of the equipment, the scraper blade of the scraper is on the outside of the traction chain 5 and will not contact the aforementioned contact plate, and the aforementioned contact plate will not contact the sludge at the bottom of the pool.

[0025] In this embodiment, a mounting plate 7 is also included. The mounting plate 7 is fixed to the pool wall and located above the guide tube 2. The mounting plate 7 has four monitoring points 8 spaced vertically, which are B, C, E, and F from bottom to top. Each monitoring point 8 corresponds to a displacement sensor 3. In use, the traction chain 5 is in a tightened state in the initial state of the device. Due to its own weight, it will sag slightly, i.e., at the initial point A. At this time, the traction chain 5 will not contact the contact rod 1, and the device is in a balanced state. The sensing block 4 is located below point B. The displacement sensor 3 at point B will not be triggered. As the running time increases, the tension of the traction chain 5 deteriorates, and the sagging gradually increases. The sagging traction chain 5 will contact the contact rod 1 and gradually press down on the contact rod 1, causing the contact rod 1 to gradually move the sensing rod upward. As a result, the sensing block 4 will be sensed by the displacement sensors 3 at points B, C, E, and F in sequence, thus reflecting the degree of sagging of the chain, i.e., the tension. Points B, C, E, and F correspond to the sagging points B, C, E, and F of the traction chain 5, respectively.

[0026] As an optimization, the mounting plate 7 is equipped with a controller 9. The displacement sensor 3 is connected to the terminal 15 through the controller 9. As the tension of the traction chain 5 deteriorates and the sagging increases, the displacement sensors 3 at points B, C, E, and F sequentially sense the sensing block 4 and transmit the information to the terminal 15 via cable or wireless communication through the controller 9, so that the staff can remotely understand the working conditions. The terminal 15 can be a computer or a mobile phone.

[0027] In this embodiment, a warning light 10 is also included. The warning light 10 is electrically connected to the displacement sensor 3 corresponding to point E via the controller 9. The displacement sensors 3 corresponding to points B and C are used by the staff to monitor the sag of the traction chain 5 in real time. When the traction chain 5 sags to point E, the warning light 10 starts to warn the staff that the tensioning and repair of the traction chain 5 can begin. The warning light 10 can be set up at the work site or in a remote control room to achieve the function of immediate warning.

[0028] Furthermore, it also includes a stop switch 11. The stop switch 11 is electrically connected to the displacement sensor 3 corresponding to point F through the controller 9 to forcibly shut down the sludge scraper. When the traction chain 5 droops to point F, it indicates that the working condition of the traction chain 5 is very bad and needs to be tensioned and repaired immediately. The displacement sensor 3 corresponding to point F activates the stop switch 11 through the controller 9, thereby automatically shutting down the sludge scraper to avoid serious accidents.

[0029] As a specific implementation of this embodiment, a limiting block 12 is also included. The limiting block 12 is fixed on the sensing rod and located below the sensing block 4. When the bottom wall of the limiting block 12 abuts against the bottom wall of the guide tube 2, the contact rod 1 is horizontally positioned. The limiting block 12 can prevent the sensing rod from detaching from the guide tube 2. In the initial operating state of the equipment, the traction chain 5 will not contact the contact rod 1. The sensing rod moves downward due to its own weight until the limiting block 12 abuts against the guide tube 2, causing the sensing rod to stop moving downward. At this time, the contact rod 1 remains horizontal, and the other end of the contact rod 1 is located below the traction chain 5, and the initial point A is above the other end of the contact rod 1, that is, the traction chain 5 does not contact the contact rod 1.

[0030] In this embodiment, the sensing rod includes a connecting rod 13 and a vertical rod 14. One end of the connecting rod 13 is hinged to one end of the contact rod 1 and the other end is hinged to the bottom end of the vertical rod 14. The guide tube 2 passes through the vertical rod 14. The sensing block 4 and the limiting block 12 are both disposed on the vertical rod 14. This arrangement makes the vertical rod 14, the connecting rod 13 and the contact rod 1 form a three-bar linkage, ensuring that the vertical rod 14 can move straight up and down along the guide tube without jamming.

[0031] In this embodiment, the displacement sensor 3 is preferably an inductive displacement sensor 3, the sensing block 4 is a metal block, and the contact rod 1, connecting rod 13 and upright rod 14 are all non-metallic rods to ensure the sensitivity and accuracy of the sensing and to prevent interference from non-metallic parts.

[0032] The aforementioned non-metallic chain scraper traction chain tension monitoring device directly monitors the sagging of the traction chain 5 and promptly transmits the information collected by the sensor to the terminal 15 via the controller 9. When the sagging exceeds the equipment's operating limit, it can issue a warning and even automatically stop the machine to prevent damage to the equipment. In addition, it can also provide effective protection against overload of the scraper equipment. When the equipment is overloaded, the traction chain 5 will lengthen as the force increases, and sagging will also occur. The aforementioned detection device can monitor this in a timely manner and send an alarm signal to remind the customer to troubleshoot. Since equipment overload is usually sudden, it is convenient for users to analyze the problem and take effective measures to avoid serious accidents such as chain slippage, chain derailment, and chain breakage caused by chain loosening.

[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A non-metallic chain type mud scraper traction chain tightness monitoring device, characterized in that: The device includes a contact rod (1), a sensing rod, and a guide tube (2). The guide tube (2) is fixed to the pool wall. Multiple displacement sensors (3) are spaced vertically above the guide tube (2). The sensing rod moves through the guide tube (2). The top of the sensing rod is equipped with a sensing block (4) that works with the displacement sensors (3). One end of the contact rod (1) is hinged to the bottom end of the sensing rod, and the other end is horizontally located below the traction chain (5). The middle part of the contact rod (1) is provided with a rotating shaft (6). When the traction chain (5) droops down and presses down on the contact rod (1), the contact rod (1) rotates around the rotating shaft (6) to drive the sensing rod to move upward.

2. The non-metallic chain scraper traction chain tension monitoring device according to claim 1, characterized in that: It also includes an installation plate (7), which is fixed on the pool wall and located above the guide tube (2). The installation plate (7) is provided with four monitoring points (8) at intervals along the vertical direction, namely point B, point C, point E and point F from bottom to top. Each monitoring point (8) is provided with a displacement sensor (3).

3. A non-metallic chain type mud scraper traction chain tightness monitoring device according to claim 2, characterized in that: The mounting plate (7) is also equipped with a controller (9), and the displacement sensor (3) is connected to the terminal (15) through the controller (9).

4. A non-metallic chain type mud scraper traction chain tightness monitoring device according to claim 3, characterized in that: It also includes a warning light (10), which is electrically connected to the displacement sensor (3) corresponding to point E via a controller (9).

5. The non-metallic chain scraper traction chain tension monitoring device according to claim 3, characterized in that: It also includes a stop switch (11), which is electrically connected to the displacement sensor (3) corresponding to point F via the controller (9) to forcibly shut down the sludge scraper.

6. The non-metallic chain scraper traction chain tension monitoring device according to claim 1, characterized in that: It also includes a limiting block (12), which is fixed on the sensing rod and located below the sensing block (4). When the bottom wall of the limiting block (12) abuts against the bottom wall of the guide tube (2), the contact rod (1) is horizontally positioned.

7. A non-metallic chain type mud scraper traction chain tightness monitoring device according to claim 6, characterized in that: The sensing rod includes a connecting rod (13) and a vertical rod (14). One end of the connecting rod (13) is hinged to one end of the contact rod (1) and the other end is hinged to the bottom end of the vertical rod (14). The guide tube (2) passes through the vertical rod (14). The sensing block (4) and the limiting block (12) are both disposed on the vertical rod (14).

8. The non-metallic chain scraper traction chain tension monitoring device according to claim 7, characterized in that: The sensing block (4) is a metal block.

9. A non-metallic chain scraper traction chain tension monitoring device according to claim 8, characterized in that: The contact rod (1), connecting rod (13) and upright rod (14) are all non-metallic rods.

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