Automatic deviation rectifying structure for coal conveying belt of thermal power plant

Abstract

The utility model discloses an automatic deviation rectifying structure for a coal conveying belt of a thermal power plant, which relates to the technical field of coal conveying of the thermal power plant and comprises a support frame, a belt component is mounted at the top of the support frame, deviation rectifying mechanisms are arranged on two sides of the belt component, and a centering mechanism is mounted on one side of the support frame and comprises a fixing frame. According to the coal centering device, the second electric push rod works to drive the sliding rod to move, drive the rotating plate to rotate and push the two sliding blocks to move, so that the distance between the two centering plates is adjusted, coal conveyed on the belt assembly is centered, meanwhile, the coal is scraped to be flat when passing through the scraping plate, and the coal can be automatically centered. Therefore, the coal is centered, the transverse stress of the belt is balanced, the deviation trend caused by unbalance loading can be reduced, and the deviation condition of the belt is prevented from the source.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coal conveying technology field of thermal power plant especially relates to a coal conveying automatic deviation rectification structure of thermal power plant. BACKGROUND

[0002] The coal conveying system of thermal power plant is the core link of fuel supply of the power plant, is mainly responsible for the coal from the coal unloading device is delivered to the boiler raw coal bin, when the coal is delivered through the belt, the belt will exist deviation in the working process, and the belt needs to be rectified.

[0003] Such as the publication No. CN217075821U discloses a kind of automatic deviation rectification belt conveying device, including conveying frame, conveying roller, conveying belt and limit wheel, conveying belt is drivenly connected between two conveying rollers, and conveying roller two ends are erected on conveying frame;Conveying roller two ends are installed on the middle shaft, and the waist-shaped hole is opened in the middle shaft both ends position of conveying frame.

[0004] In prior art, since the cause of belt deviation is complex and changeable, material discharging deviation is a common source problem, when material is discharged on the belt, it is not aligned with the center, and will be concentrated on one side of the belt, forming transverse eccentric force, which forces the belt to continue to deviate to the material accumulation side, if the material deviation problem is not solved, directly rectifying the belt, will cause the deviation rectification structure to reciprocate due to uneven stress, aggravate mechanical component wear, shorten equipment life, and even cause belt abnormal swing, tear and other serious faults. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problem that in prior art, directly rectifying the belt without solving the material deviation problem, which will cause the deviation rectification structure to reciprocate due to uneven stress, aggravate mechanical component wear, and proposes a kind of coal conveying automatic deviation rectification structure of thermal power plant.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of coal conveying automatic deviation rectification structure of thermal power plant, including support frame, the top of support frame is installed with belt assembly, deviation rectification mechanism is arranged at the two sides of belt assembly, and the side of support frame is installed with centering mechanism, and the centering mechanism includes fixed frame, and the end of fixed frame is fixedly connected on the top side of support frame, and the side of fixed frame is fixedly connected with connecting plate, and the side of connecting plate is fixedly connected with second electric push rod, and the one end of second electric push rod is fixedly connected with sliding rod, and the one end of sliding rod is rotatably connected with rotating plate by penetrating connecting plate, and the other end of two rotating plates is rotatably connected with sliding block, and the one end of two sliding blocks is fixedly connected with centering plate, and the side of two centering plates is fixedly connected with scraping plate, and sliding connection is established between two scraping plates.

[0007] Preferably, the top side of fixed frame is provided with second guide groove, and the inside of second guide groove is slidably connected with the side of sliding block.

[0008] Preferably, a first guide groove is formed on one side of the connecting plate, and the first guide groove is in sliding connection with the outer side of the sliding rod.

[0009] Preferably, the deviation rectifying mechanism comprises a fixed plate, one side of the fixed plate is fixedly connected to one side of the support frame, the other side of the fixed plate is fixedly connected with a first electric push rod, one end of the first electric push rod is fixedly connected with a moving plate, one side of the moving plate is fixedly connected with an extension rod, one end of the extension rod is fixedly connected with a fixed frame, and the inner side of the fixed frame is rotatably connected with a deviation rectifying roller.

[0010] Preferably, a guide roller is slidingly connected to the moving end of the moving plate, and one side of the guide roller is fixedly connected to the other side of the fixed plate.

[0011] Preferably, the fixed frame is fixedly connected with a displacement sensor on one side.

[0012] Preferably, a spring is sleeved on the outer side of the extension rod, and the spring is arranged between the moving plate and the fixed frame.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that:

[0014] 1. In the utility model, the second electric push rod works to drive the sliding rod to move, drive the rotating plate to rotate, and push the two sliding blocks to move, so that the distance between the two centering plates is adjusted, the coal conveyed on the belt assembly is centered, the coal is scraped flat when passing through the scraping plate, the coal is centered, the belt is balanced in transverse stress, the deviation tendency caused by unbalanced load is reduced, and the belt deviation is prevented from the source.

[0015] 2. In the utility model, when the belt assembly runs deviation, the deviation rectifying roller is pushed out, the extension rod is retracted, the spring is compressed, the spring elasticity makes the belt assembly gradually return to normal, the displacement sensor can detect the displacement amount abnormality, when the displacement sensor detects that the displacement amount is abnormal for a long time, the first electric push rod works to drive the moving plate to move, the position of the deviation rectifying roller is mechanically adjusted, the deviation can be quickly and accurately rectified when the deviation force is large, and the deviation rectifying efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 is a first three-dimensional structure schematic diagram of the automatic deviation rectifying structure of the coal belt of the power plant;

[0017] Figure 2 Fig. 2 is a second three-dimensional structure schematic diagram of the automatic deviation rectifying structure of the coal belt of the power plant;

[0018] Figure 3 Fig. 3 is a centering mechanism connection structure schematic diagram of the automatic deviation rectifying structure of the coal belt of the power plant.

[0019] Figure 4 This utility model presents a schematic diagram of the connection structure of the correction mechanism for an automatic correction structure of a coal conveyor belt in a thermal power plant.

[0020] Legend: 1. Support frame; 2. Correction mechanism; 21. Fixed plate; 22. First electric push rod; 23. Fixed frame; 24. Correction roller; 25. Telescopic rod; 26. Displacement sensor; 27. Spring; 28. Guide roller; 29. ​​Moving plate; 3. Belt assembly; 4. Centering mechanism; 41. Fixed frame; 42. Sliding block; 43. Rotating plate; 44. Second electric push rod; 45. First guide groove; 46. Connecting plate; 47. Sliding rod; 48. Scraper plate; 49. Centering plate; 410. Second guide groove. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides an automatic belt alignment structure for coal conveyors in thermal power plants, including a support frame 1. A belt assembly 3 is mounted on the top of the support frame 1. Alignment mechanisms 2 are provided on both sides of the belt assembly 3. A centering mechanism 4 is mounted on one side of the support frame 1. The centering mechanism 4 includes a fixed frame 41, the end of which is fixedly connected to the top side of the support frame 1. A connecting plate 46 is fixedly connected to one side of the fixed frame 41. A second electric push rod 44 is fixedly connected to one side of the connecting plate 46. A sliding rod 47 is fixedly connected to one end of the second electric push rod 44. One end of the connecting plate 46 is rotatably connected to a rotating plate 43. The other ends of the two rotating plates 43 are rotatably connected to sliding blocks 42. One end of the two sliding blocks 42 is fixedly connected to a centering plate 49. One side of the two centering plates 49 is fixedly connected to a scraper plate 48. The two scraper plates 48 are slidably connected to each other. A second guide groove 410 is provided on the top side of the fixed frame 41. The interior of the second guide groove 410 is slidably connected to one side of the sliding block 42. A first guide groove 45 is provided on one side of the connecting plate 46. The interior of the first guide groove 45 is slidably connected to the outside of the sliding rod 47.

[0024] The belt assembly 3 is composed of a driving assembly, a belt roller and a conveying belt, and can convey coal. The second electric push rod 44 drives the sliding rod 47 to move. The sliding rod 47 slides in the first guide groove 45, and the fixed sliding rod 47 moves linearly. The sliding rod 47 drives the rotating plate 43 to rotate, and drives the two sliding blocks 42 to move. The sliding block 42 slides in the second guide groove 410, and the fixed sliding block 42 moves linearly. The sliding block 42 drives the distance between the two centering plates 49 to be adjusted, and the coal conveyed on the belt assembly 3 is centered. At the same time, the coal is scraped flat by the scraping plate 48, so that the coal is centered, the transverse stress of the belt is balanced, and the deviation tendency caused by unbalanced load can be reduced, thereby preventing the deviation of the belt from the source.

[0025] Embodiment two: as shown in Figure 1 and Figure 4 The deviation correcting mechanism 2 includes a fixed plate 21, one side of the fixed plate 21 is fixedly connected to one side of the support frame 1, the other side of the fixed plate 21 is fixedly connected with a first electric push rod 22, one end of the first electric push rod 22 is fixedly connected with a moving plate 29, one side of the moving plate 29 is fixedly connected with a telescopic rod 25, one end of the telescopic rod 25 is fixedly connected with a fixed frame 23, the inner side of the fixed frame 23 is rotatably connected with a deviation correcting roller 24; the moving end of the moving plate 29 is slidably connected with a guide roller 28, one side of the guide roller 28 is fixedly connected to the other side of the fixed plate 21; one side of the fixed frame 23 is fixedly connected with a displacement sensor 26; the outside of the telescopic rod 25 is sleeved with a spring 27, and the spring 27 is installed between the moving plate 29 and the fixed frame 23.

[0026] When the belt assembly 3 runs deviation, it first contacts the two deviation correcting rollers 24, pushes the deviation correcting rollers 24 outward, the telescopic rod 25 contracts, the spring 27 is compressed, the spring 27 is pushed by the elastic force to make the side of the belt assembly 3 gradually return to normal, and at the same time, when the deviation correcting roller 24 is pushed by the deviated belt assembly 3, the displacement sensor 26 can detect the abnormal displacement amount. When the displacement sensor 26 detects that the displacement amount is abnormal for a long time, the first electric push rod 22 drives the moving plate 29 to move, the moving plate 29 slides outside the guide roller 28, the fixed moving plate 29 moves linearly, and the position of the deviation correcting roller 24 is adjusted mechanically, so that the deviation can be corrected quickly and accurately when the deviation force is large, and the deviation correcting efficiency is improved.

[0027] The method for using and the working principle of the device are as follows: coal is conveyed through the belt assembly 3, the second electric push rod 44 works to drive the sliding rod 47 to move, drives the rotating plate 43 to rotate, pushes the two sliding blocks 42 to move, the sliding block 42 movement drives the distance adjustment between the two centering plates 49, and the coal conveyed on the belt assembly 3 is centered; when the belt assembly 3 runs off-center, first, the two sides of the deviation correcting roller 24 are contacted, the deviation correcting roller 24 is pushed outwards, the telescopic rod 25 is retracted, the spring 27 is compressed, the spring 27 elastic force acts on the side of the belt assembly 3 to gradually push the belt assembly 3 to return to normal, the first electric push rod 22 works to drive the moving plate 29 to move, the position of the deviation correcting roller 24 is mechanically adjusted, and the belt is corrected.

[0028] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields. However, any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still falls within the protection scope of the present application.

Claims

1. An automatic belt alignment structure for coal conveying in a thermal power plant, comprising a support frame (1), characterized in that: A belt assembly (3) is installed on the top of the support frame (1). A correction mechanism (2) is provided on both sides of the belt assembly (3). A centering mechanism (4) is installed on one side of the support frame (1). The centering mechanism (4) includes a fixed frame (41). The end of the fixed frame (41) is fixedly connected to the top side of the support frame (1). A connecting plate (46) is fixedly connected to one side of the fixed frame (41). A second electric push rod (44) is fixedly connected to one side of the connecting plate (46). A sliding rod (47) is fixedly connected to one end of the second electric push rod (44). A rotating plate (43) is rotatably connected to one end of the sliding rod (47) through the connecting plate (46). A sliding block (42) is rotatably connected to the other end of the two rotating plates (43). A centering plate (49) is fixedly connected to one end of the two sliding blocks (42). A scraper plate (48) is fixedly connected to one side of the two centering plates (49). The two scraper plates (48) are slidably connected to each other.

2. The automatic belt alignment structure for coal conveyors in thermal power plants according to claim 1, characterized in that: The top side of the fixed frame (41) is provided with a second guide groove (410), and the interior of the second guide groove (410) is slidably connected to one side of the sliding block (42).

3. The automatic belt alignment structure for coal conveyors in thermal power plants according to claim 1, characterized in that: A first guide groove (45) is provided on one side of the connecting plate (46), and the inside of the first guide groove (45) is slidably connected to the outside of the sliding rod (47).

4. The automatic belt alignment structure for coal conveyors in thermal power plants according to claim 1, characterized in that: The correction mechanism (2) includes a fixed plate (21), one side of which is fixedly connected to one side of the support frame (1), and the other side of the fixed plate (21) is fixedly connected to a first electric push rod (22). One end of the first electric push rod (22) is fixedly connected to a moving plate (29), one side of the moving plate (29) is fixedly connected to a telescopic rod (25), one end of the telescopic rod (25) is fixedly connected to a fixed frame (23), and the inner side of the fixed frame (23) is rotatably connected to a correction roller (24).

5. The automatic belt alignment structure for coal conveyors in thermal power plants according to claim 4, characterized in that: The movable end of the movable plate (29) is slidably connected to a guide roller (28), and one side of the guide roller (28) is fixedly connected to the other side of the fixed plate (21).

6. The automatic belt alignment structure for coal conveyors in thermal power plants according to claim 4, characterized in that: A displacement sensor (26) is fixedly connected to one side of the fixed frame (23).

7. The automatic belt alignment structure for coal conveyors in thermal power plants according to claim 4, characterized in that: A spring (27) is sleeved on the outside of the telescopic rod (25), and the spring (27) is installed between the movable plate (29) and the fixed frame (23).

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