Overload protection device for scraper slag remover

Abstract

The utility model discloses an overload protection device for a scraper slag remover, which relates to the technical field of scraper slag removers and comprises a conveying bin, chain wheel shafts are movably mounted at two ends in the conveying bin, two bent plate chains are movably connected between the two chain wheel shafts, and a motor is fixedly mounted on the outer side of the conveying bin. The output end of the motor is fixedly connected with one end of one chain wheel shaft, the motor is further electrically connected with an external controller through a connecting wire, an anti-overload scraper is arranged between the two bent plate chains and comprises a bottom plate and a top plate, and a side plate is fixedly installed at the top of the top plate. A traditional scraper blade is arranged to be the anti-overload scraper blade, the anti-overload scraper blade is composed of the bottom plate, the top plate, the side plates, the metal elastic pieces and other components, the overload value of the scraper blade can be adjusted by setting the bending pressure value of the multiple metal elastic pieces, and therefore the situation that the scraper blade is clamped due to material blockage and the like is prevented, and then the situation that a motor is overloaded is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of scraper slag removal machines, in particular to an overload protection device for a scraper slag removal machine. Background Technique

[0002] Scraper slag removal machines are widely used to remove the ash and slag generated by combustion from industrial equipment such as boilers. It consists of parts such as chains, scrapers, drive devices, and tracks. Among them, the chains and scrapers are its core working components. The scraper slag removal machine drives the scrapers to move back and forth on the tracks through the transmission of the chains, so as to scrape the ash and slag out from the bottom of the boiler and transport it to the designated slag discharge port;

[0003] The scraper is an important component of the scraper slag removal machine and is used to transport materials from one end to the other end. When transporting ash and slag through the scraper, when the amount of ash and slag that the scraper needs to handle exceeds its design capacity, the scraper will be subjected to excessive resistance, resulting in overload. In addition, there may be unevenness or foreign objects between the scraper and the bottom, which will also cause additional resistance when the scraper moves, thereby causing overload. When overload occurs, it will increase the stress on the scraper and the chain. Long-term operation may cause the chain to break, the scraper to deform or be damaged, and in severe cases, it may damage the structure of the entire slag removal machine. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an overload protection device for a scraper slag removal machine, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] An overload protection device for a scraper slag removal machine includes a conveying bin. Both ends inside the conveying bin are movably installed with sprocket shafts. Two curved plate chains are movably connected between the two sprocket shafts. A motor is fixedly installed outside the conveying bin. The output end of the motor is fixedly connected to one end of one of the sprocket shafts, and the motor is also electrically connected to an external controller through a connecting wire. An anti-overload scraper is arranged between the two curved plate chains. The anti-overload scraper includes a bottom plate and a top plate. A side plate is fixedly installed on the top of the top plate. A scraper is movably installed on the top of the side plate. The two sides of the bottom plate and the top plate are respectively fixedly installed on one side of the corresponding curved plate chain.

[0007] As a further preferred solution of the utility model, two limiting grooves are opened on one side of the side plate, and a discharge through groove is opened inside the limiting groove. Through the setting of the limiting grooves, the scraper can be unidirectionally limited, and the opening of the discharge through groove can discharge part of the materials, reducing the pressure on the scraper.

[0008] As a further preferred solution of the present invention, a connecting block is fixedly installed on the top of the side plate, and fixed shafts are fixedly installed on both sides of the connecting block.

[0009] As a further preferred solution of the present invention, four first fixing seats are fixedly installed on the side of the side plate facing away from the limiting groove, and the first fixing seats have grooves therein.

[0010] As a further preferred embodiment of the present invention, a connecting groove is provided at the bottom of the scraper, and rotation grooves are provided on both sides of the connecting groove. Limiting plates are fixedly installed on the bottom of the scraper on both sides of the connecting groove. Four second fixed seats are also fixedly installed on one side of the scraper. The scraper is rotatably installed on the connecting block through the connecting groove, and the limiting plates are inserted and installed in the corresponding limiting grooves.

[0011] As a further preferred scheme of the utility model, a metal spring is fixedly connected between the first fixed seat and the second fixed seat perpendicular to one side of the scraper. The metal spring has an arc-shaped structure. The scraper is rotatably mounted on the connecting block and supported by multiple metal springs. The side plate and the scraper can transport materials within a set overload value. When the transported material is blocked and exceeds the overload value, the scraper bends.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model discloses an overload protection device for a scraper slag remover, which configures a traditional scraper as an anti-overload scraper, and the anti-overload scraper is composed of a bottom plate, a top plate, a side plate, a metal spring and other components. The overload value of the scraper can be adjusted by setting the pressure values ​​of the bending of multiple metal springs, thereby preventing the scraper from getting stuck due to material blockage and the like, thereby preventing the motor from overloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the installation of the main structure of an overload protection device for a scraper slag remover according to the utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of an overload protection device for a scraper slag remover according to the utility model;

[0016] Figure 3 This is a schematic diagram of the main structure of an overload protection device for a scraper slag remover according to the utility model;

[0017] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0018] In the figure: 1. conveying bin; 2. sprocket shaft; 3. bent plate chain; 4. motor; 5. anti-overload scraper; 6. bottom plate; 7. top plate; 8. side plate; 9. scraper; 10. limit groove; 11. discharge groove; 12. first fixed seat; 13. connecting block; 14. fixed shaft; 15. connecting groove; 16. rotating groove; 17. limit plate; 18. second fixed seat; 19. metal spring. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figures 1-4 As shown, the utility model provides an overload protection device for a scraper slag remover, comprising a conveying bin 1, sprocket shafts 2 are movably installed at both ends of the conveying bin 1, two bent plate chains 3 are movably connected between the two sprocket shafts 2, a motor 4 is fixedly installed on the outside of the conveying bin 1, the output end of the motor 4 is fixedly connected to one end of one of the sprocket shafts 2, and the motor 4 is also electrically connected to an external controller through a connecting line, an anti-overload scraper 5 is arranged between the two bent plate chains 3, the anti-overload scraper 5 comprises a bottom plate 6 and a top plate 7, a side plate 8 is fixedly installed on the top of the top plate 7, a scraper 9 is movably installed on the top of the side plate 8, and both sides of the bottom plate 6 and the top plate 7 are respectively fixedly installed on one side of the corresponding bent plate chain 3.

[0021] like Figures 2-3 As shown, two limiting grooves 10 are provided on one side of the side plate 8, and a discharge slot 11 is provided inside the limiting groove 10. The setting of the limiting groove 10 can make the scraper 9 limit in one direction, and the opening of the discharge slot 11 can discharge part of the material, reducing the pressure of the scraper 9. A connecting block 13 is fixedly installed on the top of the side plate 8, and a fixed shaft 14 is fixedly installed on both sides of the connecting block 13. Four first fixing seats 12 are fixedly installed on the side of the side plate 8 away from the limiting groove 10, and the first fixing seats 12 have grooves therein.

[0022] like Figures 2-4 As shown, a connection groove 15 is provided at the bottom of the scraper 9, and rotation grooves 16 are provided on both sides of the connection groove 15. Limiting plates 17 are fixedly installed at the bottom of the scraper 9 at both sides of the connection groove 15, and four second fixing seats 18 are also fixedly installed on one side of the scraper 9. The scraper 9 is rotatably installed on the connecting block 13 through the connection groove 15, and the limiting plates 17 are inserted and installed in the corresponding limiting grooves 10;

[0023] like Figures 2-3As shown, a metal elastic sheet 19 is fixedly connected between the first fixed seat 12 and the second fixed seat 18 on one side of the squeegee 9 in the vertical direction. The metal elastic sheet 19 is in an arc structure. The squeegee 9 is rotatably installed on the connecting block 13 and supported by a plurality of metal elastic sheets 19, so that the side plate 8 and the squeegee 9 can convey materials within a set overload value. When the conveyance of materials is blocked and the overload value is exceeded, the squeegee 9 will bend.

[0024] It should be noted that the present utility model is an overload protection device for a squeegee slag remover. When the motor 4 drives one of the sprocket shafts 2 to rotate, the two sprocket shafts 2 can drive the two curved plate chains 3 to move in a cycle. At the same time, the two curved plate chains 3 drive multiple groups of bottom plates 6, top plates 7, side plates 8, and squeegees 9 to run in the conveying bin 1, so as to lift and convey the materials coming from the feeding port position of the conveying bin 1. If the materials in the conveying bin 1 are blocked during the material conveyance through the overload protection squeegee 5, since the motor 4 will continuously output force to the sprocket shaft 2, the sprocket shaft 2 will also continuously apply a force to the curved plate chain 3. After the materials are blocked in the conveying bin 1, the curved plate chain 3 continues to drive the bottom plate 6, top plate 7, side plate 8, and squeegee 9 to run. When the resistance encountered by the squeegee 9 is greater than the bending value of the metal elastic sheet 19, the squeegee 9 will rotate on the connecting block 13 with the two rotating grooves 16 inside the connecting groove 15 as the axis, and the squeegee 9 will bend the corresponding metal elastic sheet 19 through a plurality of second fixed seats 18 on one side, so that the angle of the squeegee 9 changes, and the discharge through groove 11 is also exposed, so that the materials between the two overload protection squeegees 5 can be loosened and dropped, preventing the materials from being blocked and affecting the operation of the chassis of the entire overload protection squeegee 5. After the blocked materials are cleared and the squeegee 9 is no longer subject to resistance, the plurality of metal elastic sheets 19 use the toughness of their materials and automatic reset to push the squeegee 9 to rotate and reset on the connecting block 13 with the rotating grooves 16 on both sides inside the connecting groove 15 as the axis, so that the entire overload protection squeegee 5 can continue to output materials normally, preventing the curved plate chain 3 and the motor 4 from being overloaded and extending the service life of the curved plate chain 3, motor 4, and overload protection squeegee 5.

[0025] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An overload protection device for a scraper slag remover, comprising a conveying bin (1), sprocket shafts (2) are movably mounted at both ends of the conveying bin (1), two bent plate chains (3) are movably connected between the two sprocket shafts (2), a motor (4) is fixedly mounted outside the conveying bin (1), an output end of the motor (4) is fixedly connected to one end of one of the sprocket shafts (2), and the motor (4) is also electrically connected to an external controller via a connecting line, characterized in that: An anti-overload scraper (5) is provided between the two bent plate chains (3), the anti-overload scraper (5) comprising a bottom plate (6) and a top plate (7), a side plate (8) is fixedly mounted on the top of the top plate (7), a scraper (9) is movably mounted on the top of the side plate (8), and both sides of the bottom plate (6) and the top plate (7) are respectively fixedly mounted on one side of the corresponding bent plate chain (3).

2. The overload protection device for a scraper slag remover according to claim 1 is characterized in that: Two limiting grooves (10) are provided on one side of the side plate (8), and a material discharge through groove (11) is provided inside the limiting groove (10).

3. The overload protection device for a scraper slag remover according to claim 2 is characterized in that: A connecting block (13) is fixedly mounted on the top of the side plate (8), and fixed shafts (14) are fixedly mounted on both sides of the connecting block (13).

4. The overload protection device for a scraper slag remover according to claim 3 is characterized in that: Four first fixing seats (12) are fixedly mounted on the side of the side plate (8) facing away from the limiting groove (10), and the first fixing seats (12) have grooves therein.

5. The overload protection device for a scraper slag remover according to claim 4 is characterized in that: The scraper (9) has a connecting groove (15) at the bottom, and rotation grooves (16) are provided on both sides of the connecting groove (15). Limiting plates (17) are fixedly installed on the bottom of the scraper (9) at both sides of the connecting groove (15). Four second fixing seats (18) are also fixedly installed on one side of the scraper (9). The scraper (9) is rotatably mounted on the connecting block (13) through the connecting groove (15), and the limiting plates (17) are inserted and installed in the corresponding limiting grooves (10).

6. The overload protection device for a scraper slag remover according to claim 5 is characterized in that: A metal spring (19) is fixedly connected between the first fixing seat (12) and a second fixing seat (18) perpendicular to one side of the scraper (9), and the metal spring (19) is in an arc-shaped structure.

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