Monorail reciprocating type mud scraper

By introducing a vibrating plate and concave cam structure into the monorail reciprocating sludge scraper, the problem of sludge accumulation was solved, achieving efficient sludge scraping and stable equipment operation, extending equipment life and reducing maintenance costs.

CN224141538UActive Publication Date: 2026-04-21YIXING QICHAO ENVIRONMENTAL PROTECTION EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YIXING QICHAO ENVIRONMENTAL PROTECTION EQUIPMENT CO LTD
Filing Date
2025-04-26
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing monorail reciprocating sludge scrapers lack a structure to address sludge accumulation during the scraping process, leading to continuous sludge buildup and affecting normal equipment operation and scraping efficiency.

Method used

A single-rail reciprocating sludge scraper was designed, which adopts a vibrating plate and concave cam structure. The rolling of the concave cam drives the vibrating plate to vibrate, which loosens the accumulated sludge, prevents excessive sludge accumulation, reduces scraper friction, and improves sludge scraping efficiency and equipment life.

Benefits of technology

It effectively prevents sludge accumulation, reduces scraper friction, improves scraping efficiency and quality, extends equipment lifespan, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a single-rail reciprocating type mud scraper which comprises a single-rail main body, a positive trolley and a negative trolley which are arranged on the upper side of the middle of the single-rail main body, and a bottom plate arranged on the lower side of the single-rail main body, sliding blocks are arranged at the connecting positions of the front trolley and the inner side of the single-rail main body and the connecting positions of the negative trolley and the inner side of the single-rail main body, driving motors connected with an external power source for power supply are arranged on the upper sides of the left end and the right end of the single-rail main body correspondingly, and inhaul cables are connected to the outer portions of transmission shafts of the driving motors. Along with the continuation of the sludge scraping process, the sludge can be accumulated too high in front of the scraping plate, and the sludge scraping effect is affected. The vibration plate in the innovative point structure fluctuates under the action of the concave-convex wheel, so that the sludge accumulated too high can be loosened through vibration and falls off from the scraper, excessive accumulation of the sludge is avoided, and it is guaranteed that the sludge scraper can continuously and efficiently work.
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Description

Technical Field

[0001] This utility model belongs to the technical field of sludge scrapers, specifically relating to a single-rail reciprocating sludge scraper. Background Technology

[0002] A monorail reciprocating sludge scraper is a mechanical device used in sedimentation tanks of wastewater treatment plants, mainly for removing sludge from the bottom of the tank. Its structure consists of a monorail, a drive unit, scraper blades, and a control system. The scraper is driven by a motor to reciprocate along the track, scraping the sludge to the discharge port.

[0003] In the existing technology, the scraper lacks a structure to solve the problem of sludge accumulation during the sludge scraping process. Sludge will continue to accumulate in front of the scraper. Over time, the accumulated sludge will become higher and higher, which may even cause the scraper to be unable to move normally, resulting in equipment blockage and shutdown. Utility Model Content

[0004] The purpose of this invention is to provide a single-rail reciprocating sludge scraper to solve the existing problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a single-rail reciprocating sludge scraper, comprising a single-rail body, a positive trolley and a negative trolley disposed on the upper side of the middle of the single-rail body, and a base plate disposed on the lower side of the single-rail body;

[0006] A negative trolley is provided on the right side of the positive trolley, and a slider is provided at the inner connection between the positive trolley, the negative trolley and the monorail body.

[0007] The upper sides of the left and right ends of the monorail body are respectively provided with drive motors that are connected to an external power source for power supply, and the drive motor transmission shafts are externally connected to cables;

[0008] The front and rear ends of the lower sides of the positive and negative trolleys are respectively provided with scraper bodies;

[0009] The front and rear ends of the positive and negative trolleys are respectively provided with slots. A concave cam is provided in the slot. A movable shaft is provided on the middle inner side of the concave cam. A vibrating plate is provided at the end of the movable shaft. A fixed arm is provided on the lower outer side of the end of the vibrating plate. A sleeve is provided on the lower end of the fixed arm. A ball is provided at the end of the sleeve. A spring is provided on the outside of the sleeve.

[0010] A groove is provided at the connection between the scraper body and the ball.

[0011] Preferably, the monorail body has an internal space in the middle, and the cable passes through the middle space of the monorail body.

[0012] Preferably, the positive trolley and the negative trolley move left and right within the monorail body via sliders, and the positive trolley and the negative trolley are connected to the cable.

[0013] Preferably, the plurality of scraper bodies are fixedly connected to the positive trolley and the negative trolley respectively, and the lower side of the scraper body is inclined.

[0014] Preferably, the concave cam can rotate within the slot via a movable shaft, and the concave cam is a cylindrical solid with multiple protrusions on the outside.

[0015] Preferably, the fixed arm and the vibrating plate are fixedly connected, and the sleeve rod and the fixed arm are fixedly connected.

[0016] Preferably, the ball is connected to the groove in the scraper body by a nested connection, and the ball can rotate at a certain angle within the groove.

[0017] Compared with the prior art, this utility model provides a single-rail reciprocating sludge scraper, which has the following features:

[0018] Beneficial effects:

[0019] 1. When the sludge scraper is working, the scraper body scrapes up the sludge. As the scraping process continues, the sludge may accumulate too high in front of the scraper, affecting the scraping effect. The innovative structure's vibrating plate, under the action of the concave cam, vibrates, which can loosen the excessively accumulated sludge and make it fall off the scraper, avoiding excessive sludge accumulation and ensuring that the sludge scraper can work continuously and efficiently.

[0020] 2. The vibration of the vibrating plate makes the sludge in a relatively loose state, which reduces the resistance encountered by the scraper when scraping the sludge, making it easier to scrape off the sludge, thereby improving the overall sludge scraping efficiency of the sludge scraper and saving sludge scraping time and energy consumption.

[0021] 3. If the sludge accumulates too high, it will increase the friction between the scraper and the sludge, leading to accelerated wear on the scraper and other related components. After the vibrating plate loosens the sludge, it reduces the friction on the scraper, decreases the wear on various parts of the equipment, extends the equipment's service life, and lowers maintenance costs. Furthermore, the vibration of the vibrating plate ensures a tighter and more even contact between the scraper and the ground. Because the scraper will wobble and fine-tune to a certain extent during vibration, it can better conform to the unevenness of the ground being scraped, thus more thoroughly removing the sludge and improving the quality and effectiveness of sludge removal. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the sludge scraper in this utility model.

[0023] Figure 2In this utility model Figure 1 A diagram from a frontal view.

[0024] Figure 3 This is a schematic diagram of the structure of the central trolley in this utility model.

[0025] Figure 4 In this utility model Figure 3 A schematic diagram of the structure after the removal of the Zhongzheng trolley.

[0026] Figure 5 In this utility model Figure 4 A structural diagram from a side view.

[0027] Figure 6 This is a schematic diagram of the structure of the vibrating plate after the scraper moves downward and separates from the vibrating plate in this utility model.

[0028] Figure 7 In this utility model Figure 1 A magnified structural diagram of the central circular region.

[0029] Figure 8 In this utility model Figure 6 A magnified structural diagram of the central circular region.

[0030] In the diagram: 1. Monorail body; 2. Drive motor; 3. Cable; 4. Base plate; 5. Positive trolley; 6. Negative trolley; 7. Slot; 8. Slider; 9. Scraper body; 10. Vibrating plate; 11. Fixed arm; 12. Concave cam; 13. Movable shaft; 14. Sleeve rod; 15. Spring; 16. Slot; 17. Ball. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] This utility model provides, for example Figure 1-8 The single-rail reciprocating sludge scraper shown includes a single-rail body 1, a positive trolley 5 and a negative trolley 6 disposed on the upper side of the middle of the single-rail body 1, and a bottom plate 4 disposed on the lower side of the single-rail body 1.

[0033] A negative trolley 6 is provided on the right side of the positive trolley 5, and a slider 8 is provided at the inner connection between the positive trolley 5, the negative trolley 6 and the monorail body 1.

[0034] The monorail body 1 has an internal space in the middle, and the cable 3 passes through the middle space of the monorail body 1. The positive trolley 5 and the negative trolley 6 move left and right in the monorail body 1 through the slider 8.

[0035] Optionally, the monorail body 1 is made of high-strength metal material with an I-shaped cross-section. The hollow internal structure not only reduces the overall weight but also provides space for the cable 3 to pass through.

[0036] The upper sides of the left and right ends of the monorail body 1 are respectively equipped with drive motors 2 that are connected to an external power source for power supply, and the drive shafts of the drive motors 2 are externally connected to cables 3.

[0037] Scraper bodies 9 are respectively installed at the front and rear ends of the lower side of the positive trolley 5 and the negative trolley 6;

[0038] The front and rear ends of the positive trolley 5 and the negative trolley 6 are respectively provided with slots 7. A concave cam 12 is provided in the slot 7. A movable shaft 13 is provided on the middle inner side of the concave cam 12. A vibrating plate 10 is provided at the end of the movable shaft 13. A fixed arm 11 is provided on the lower outer side of the end of the vibrating plate 10. A sleeve rod 14 is provided on the lower end of the fixed arm 11. A ball 17 is provided at the end of the sleeve rod 14. A spring 15 is provided on the outside of the sleeve rod 14.

[0039] Optionally, the upper outer surface of the monorail body 1 is provided with regularly distributed uneven protrusions, the height and spacing of which are used to cooperate with the concave cam 12 to realize the vibration function.

[0040] A groove 16 is provided at the connection between the scraper body 9 and the ball 17.

[0041] The positive trolley 5 and the negative trolley 6 are connected to the cable 3 by a snap-fit ​​connection. Multiple scraper bodies 9 are fixedly connected to the positive trolley 5 and the negative trolley 6 respectively. The lower side of the scraper body 9 is inclined.

[0042] Optionally, the monorail body 1 can be inserted into the base plate 4 using fixing bolts and fixed to the ground to be scraped.

[0043] In this embodiment, the user can fix the monorail body 1 of the monorail reciprocating sludge scraper at a suitable position above the area to be scraped, ensuring a stable installation. The positive trolley 5 and the negative trolley 6 are respectively installed on the monorail body 1 via sliders 8, so that the sliders 8 and the monorail body 1 fit well and can slide smoothly.

[0044] The scrapers can then be installed at the bottom of the positive trolley 5 and the negative trolley 6, and the angle of the scraper's inclination surface can be adjusted so that it contacts the ground to be scraped at a suitable angle. After the equipment installation is completed, connect the power supply to the two drive motors 2 and start the equipment.

[0045] After startup, the drive shafts of the two drive motors 2 begin to rotate, driving the positive trolley 5 and the negative trolley 6 to reciprocate on the monorail body 1 via the cable 3. As the positive trolley 5 and the negative trolley 6 move, the inclined surfaces of the scrapers installed at the bottom contact the ground to be scraped. During the movement of the equipment, the scrapers lift the sludge from the ground and push it to the designated collection area, thus completing the sludge scraping work. Throughout the entire operation, the slider 8 slides stably on the monorail body 1, ensuring the smoothness and reliability of the movement of the positive trolley 5 and the negative trolley 6.

[0046] like Figure 1-8 As shown, the concave cam 12 can rotate within the slot 7 via the movable shaft 13, and the concave cam 12 is a cylindrical solid with multiple protrusions on the outside. The fixed arm 11 and the vibrating plate 10 are fixedly connected, the sleeve rod 14 is fixedly connected to the fixed arm 11, and the sleeve ball 17 is connected to the sleeve groove 16 in the scraper body 9 through a nested connection, and the sleeve ball 17 can rotate at a certain angle within the sleeve groove 16.

[0047] Preferably, a concave cam 12 is provided in the slot 7 of the positive trolley 5 and the negative trolley 6, and the concave cam 12 contacts the upper outer surface of the monorail body 1. The concave cam 12 is connected to the vibrating plate 10 through a movable shaft 13. A sleeve rod 14 is provided below the vibrating plate 10, and a spring 15 is sleeved on the outside of the sleeve rod 14. A ball 17 is provided at the end of the sleeve rod 14, and the ball 17 can move in the sleeve groove 16.

[0048] When the positive trolley 5 and the negative trolley 6 move on the monorail body 1, the concave cam 12 rolls on the upper outer surface of the monorail body 1 as the equipment moves. Because the upper outer surface of the monorail body 1 has uneven protrusions, the concave cam 12 will fluctuate due to these protrusions during rolling. The fluctuation of the concave cam 12 is transmitted to the vibrating plate 10 through the movable shaft 13, causing the vibrating plate 10 to shake. When the vibrating plate 10 shakes, the sleeve rod 14 moves within the sleeve groove 16, the spring 15 acts as a buffer, and the sleeve ball 17 also vibrates to a certain extent within the sleeve groove 16, further adjusting the vibration amplitude and frequency of the vibrating plate 10 in conjunction with the spring 15.

[0049] During the sludge scraping process, when the sludge scraped by the scraper accumulates too high, the vibration plate 10 can generate vibration force on the accumulated sludge, loosening the excessively high and compacted sludge. The loosened sludge is easier to push and scrape off by the scraper, avoiding excessive sludge accumulation that affects the sludge scraping effect and equipment operation, thus improving the working efficiency and sludge scraping quality of the scraper.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A single-rail reciprocating sludge scraper, comprising a single-rail body (1) and a positive trolley (5) and a negative trolley (6) disposed on the upper side of the middle of the single-rail body (1), and a base plate (4) disposed on the lower side of the single-rail body (1); A negative trolley (6) is provided on the right side of the positive trolley (5), and a slider (8) is provided at the inner connection between the positive trolley (5), the negative trolley (6) and the monorail body (1). The upper sides of the left and right ends of the monorail body (1) are respectively provided with drive motors (2) that are connected to an external power source for power supply, and the drive motor (2) has a cable (3) connected to the outside of its transmission shaft; The front and rear ends of the lower side of the positive trolley (5) and the negative trolley (6) are respectively provided with scraper bodies (9); characterized in that The front and rear ends of the positive trolley (5) and the negative trolley (6) are respectively provided with slots (7). A concave cam (12) is provided in the slot (7). A movable shaft (13) is provided on the middle inner side of the concave cam (12). A vibrating plate (10) is provided at the end of the movable shaft (13). A fixed arm (11) is provided on the lower outer side of the end of the vibrating plate (10). A sleeve rod (14) is provided at the lower end of the fixed arm (11). A ball (17) is provided at the end of the sleeve rod (14). A spring (15) is provided on the outside of the sleeve rod (14). A groove (16) is provided at the connection between the scraper body (9) and the ball (17).

2. A single rail reciprocating mud scraper as claimed in claim 1 wherein: The monorail body (1) has an internal space in the middle, and the cable (3) passes through the middle space of the monorail body (1).

3. A single rail reciprocating mud scraper as claimed in claim 2 wherein: The positive trolley (5) and the negative trolley (6) move left and right within the monorail body (1) via sliders (8), and the positive trolley (5) and the negative trolley (6) are interlocked with the cable (3).

4. A single rail reciprocating mud scraper as claimed in claim 3 wherein: Multiple scraper bodies (9) are fixedly connected to the positive trolley (5) and the negative trolley (6) respectively, and the lower side of the scraper body (9) is inclined.

5. A single rail reciprocating mud scraper as claimed in claim 4 wherein: The concave cam (12) can rotate within the slot (7) via a movable shaft (13), and the concave cam (12) is a cylindrical solid with multiple protrusions on the outside.

6. A single rail reciprocating mud scraper as claimed in claim 5 wherein: The fixed arm (11) and the vibrating plate (10) are fixedly connected, and the sleeve rod (14) and the fixed arm (11) are fixedly connected.

7. A single rail reciprocating mud scraper as claimed in claim 6 wherein: The ball (17) is connected to the groove (16) in the scraper body (9) by a nested connection, and the ball (17) can rotate at a certain angle within the groove (16).