Protection device for coal conveying belt of power plant

Abstract

The utility model provides a power plant coal conveying belt protection device, which relates to the technical field of coal conveying belts, and comprises a U-shaped roller frame, two longitudinal supporting plates are symmetrically welded between two adjacent frame-shaped supports close to the U-shaped roller frame, and transverse positioning shafts are welded in the top end spaces of the two frame-shaped supports; a U-shaped sliding frame is jointly installed on the two transverse positioning shafts in a sliding mode, a square rotating rod is rotatably installed between the bottom ends of two vertical side rods of the U-shaped sliding frame, and a nylon brush is fixedly installed on the bottom side of the square rotating rod. When the square rotating rod is positioned in a vertical state, the nylon brush is in sweeping contact with the top surface of the lower layer of the coal conveying belt; a reciprocating lead screw is rotationally installed between the middle parts of the two longitudinally-arranged supporting plates, and a cleaning motor is fixedly installed on the outer side of the middle section of one longitudinally-arranged supporting plate. Impurities can be prevented from being attached to the top face of the lower layer of the coal conveying belt for a long time, and the belt conveying roller, the belt conveying roller and the tensioning roller can be protected against abrasion.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal belt technology field especially relates to a power plant coal belt protection device. BACKGROUND

[0002] The coal belt used in power plant production can be abraded in various forms during long time use, and it is necessary to design a coal belt protection device to inhibit the abrasion of the coal belt and protect the coal belt.

[0003] The existing protection device cannot effectively clean the small particle wet coal block and wet coal powder adhered to the inner layer of the conveying belt, which can cause excessive abrasion of the coal belt and various rollers. SUMMARY

[0004] Therefore, the utility model provides a power plant coal belt protection device to solve the problem that the existing protection device cannot effectively clean the small particle wet coal block and wet coal powder adhered to the inner layer of the conveying belt, which can cause excessive abrasion of the coal belt and various rollers.

[0005] The utility model discloses a power plant coal belt protection device, which comprises a U-shaped roller frame, two U-shaped roller frames are symmetrically arranged, a belt conveying roller is rotatably installed between the top ends of the two vertical supporting rods of the U-shaped roller frame, and a coal belt is tightly installed between the two belt conveying rollers.

[0006] A row of frame supports are arranged in the space between the two U-shaped roller frames, the lower layer of the coal belt is arranged in a tensioned horizontal manner and sequentially passes through the row of frame supports, two longitudinal supporting plates are symmetrically welded between the two adjacent frame supports close to one of the U-shaped roller frames, a horizontal positioning shaft is welded in the top space of the two frame supports, a U-shaped sliding frame is slidably installed on the two horizontal positioning shafts, a square rotating rod is rotatably installed between the bottom ends of the two vertical side rods of the U-shaped sliding frame, and a nylon brush is fixedly installed on the bottom side of the square rotating rod.

[0007] Further, a plum blossom shaped knob is welded to the first end of the end rotating shaft of the square rotating rod, and a jacking bolt is screwed through the outer edge position of the plum blossom shaped knob.

[0008] Further, the first end of the jacking bolt is in abutting contact with the vertical side rod on the corresponding side of the U-shaped sliding frame.

[0009] Further, two U-shaped installation frames are symmetrically welded on the top end of the frame-shaped support, and an inclined bearing roller is rotatably sleeved on the inclined installation shaft of the top end of the U-shaped installation frame.

[0010] Further, the upper layer of the coal conveying belt is concave downward and is borne on the inclined bearing roller.

[0011] Further, the tensioning roller is rotatably installed between the middle positions of the two vertical side rods of the U-shaped roller frame.

[0012] Further, the two ends of the lower layer of the coal conveying belt are respectively threaded through the two tensioning rollers.

[0013] Further, the ground contact installation plate is welded at one end position of the bottom of the U-shaped roller frame.

[0014] Further, the electric drive assembly is fixedly installed on the top end of the ground contact installation plate.

[0015] Further, the electric drive assembly is driven by the triangular belt and the corresponding side of the belt conveyor roller.

[0016] The power plant coal conveying belt protection device has the following beneficial effects:

[0017] I. The U-shaped sliding frame and the square rotating rod can be reciprocally slid along the two transversely arranged positioning shafts by the reciprocating screw, the nylon brush can be reciprocally slid in the width direction of the lower layer of the coal conveying belt, the wet coal powder and small coal blocks adhered on the top surface of the lower layer of the coal conveying belt can be cleaned to the two sides of the lower layer of the coal conveying belt, the above impurities adhered on the top surface of the lower layer of the coal conveying belt can be avoided, the impurities can be prevented from continuously rotating with the coal conveying belt and continuously rubbing against the belt conveyor roller and the tensioning roller, the excessive relative wear of the three can be avoided, and the belt conveyor roller, the belt conveyor roller and the tensioning roller can be protected from wear.

[0018] II. When the jacking bolt is in abutting contact with the vertical side rod on the corresponding side of the U-shaped sliding frame, the square rotating rod can be positioned in the vertically downward posture, and the nylon brush can be kept in the cleaning use state of being directed to the lower layer of the coal conveying belt and being in rubbing contact with the top surface of the lower layer of the coal conveying belt, the square rotating rod can be avoided from lacking necessary positioning, the nylon brush can be avoided from being up and down swung under the action of the relative friction between the nylon brush and the coal conveying belt, the lower layer of the nylon brush can be avoided from being separated from the coal conveying belt, and the lower top surface of the coal conveying belt can be continuously and effectively cleaned.

[0019] III. The square rotating rod is designed in a rotating installation form, after the jacking bolt is loosened, the square rotating rod can be swung upward to a horizontal state, and the nylon brush is driven to a horizontal state, when the nylon brush is swung to the horizontal state, it is transferred to an open space on one side of the square rotating rod, and can be conveniently disassembled and replaced, in this way, the nylon brush can be avoided to be limited in a cramped space between the square rotating rod and the lower layer of the coal conveying belt, and the disassembly and replacement is inconvenient. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0021] The drawings described below only relate to some embodiments of the present application, and are not a limitation of the present application.

[0022] In the drawings:

[0023] Figure 1 The overall structure schematic diagram of the present application is shown;

[0024] Figure 2 The installation position schematic diagram of the U-shaped sliding frame in the present application is shown;

[0025] Figure 3 The bottom side view schematic diagram of the square rotating rod in the present application is shown;

[0026] Figure 4 The structure schematic diagram of the U-shaped sliding frame and the square rotating rod in the present application is shown;

[0027] Figure 5 The disassembly state schematic diagram of the square rotating rod in the present application is shown.

[0028] List of reference signs:

[0029] 1, U-shaped roller frame; 101, belt conveying roller; 102, tensioning roller;

[0030] 2, coal conveying belt;

[0031] 3, electric drive assembly;

[0032] 4, frame-shaped support; 401, U-shaped installation frame; 402, longitudinally arranged supporting plate; 403, transversely arranged positioning shaft; 404, inclined bearing roller;

[0033] 5, cleaning motor;

[0034] 6, U-shaped sliding frame; 601, square rotating rod; 602, nylon brush; 6011, plum blossom-shaped knob; 6012, jacking bolt;

[0035] 7, reciprocating screw. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model will be described clearly and completely below in combination with the drawings of the utility model embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0037] Please refer to Figures 1 to 5 ;

[0038] Embodiment one:

[0039] The utility model proposes a kind of power plant coal conveying belt protection device, including U-shaped roller stand 1, two U-shaped roller stand 1 are symmetrically provided in U-shaped roller stand 1, and the top of the vertical support rod of two U-shaped roller stand 1 is rotatably installed with belt conveyor roller 101, and two belt conveyor rollers 101 are tensioned and installed with coal conveying belt 2 between them;

[0040] A row of frame supports 4 are arranged in the space between two U-shaped roller stand 1, and the lower layer of coal conveying belt 2 is arranged in tensioned horizontal, and sequentially passes through a row of frame supports 4;Two longitudinal support plates 402 are symmetrically welded between two adjacent frame supports 4 close to one U-shaped roller stand 1, and the top space of the two frame supports 4 is welded with horizontal positioning shaft 403;U-shaped sliding frame 6 is slidably installed on two horizontal positioning shafts 403, square rotating rod 601 is rotatably installed between the bottom end portions of two vertical side rods of U-shaped sliding frame 6, and nylon brush 602 is fixedly installed on the bottom side of square rotating rod 601;When square rotating rod 601 is positioned in vertical state, nylon brush 602 is in wiping contact with the top surface of the lower layer of coal conveying belt 2;Reciprocal screw rod 7 is rotatably installed between the middle portions of two longitudinal support plates 402, cleaning motor 5 is fixedly installed on the outer side of the middle section of one longitudinal support plate 402, and cleaning motor 5 is drivingly connected with one end of reciprocal screw rod 7 through coupling;Reciprocal screw rod 7 penetrates the middle portion of U-shaped sliding frame 6.

[0041] Preferably, the first end of the end rotating shaft of square rotating rod 601 is welded with plum blossom knob 6011, and top tight bolt 6012 is screwed through the outer edge position of plum blossom knob 6011.

[0042] Preferably, the first end of top tight bolt 6012 is in abutting contact with the vertical side rod of the corresponding side of U-shaped sliding frame 6.

[0043] On the basis of embodiment one, embodiment two:

[0044] The top end of the frame-shaped support 4 is symmetrically welded with two obliquely arranged U-shaped mounting frames 401, and an oblique bearing roller 404 is rotatably sleeved on the oblique mounting shaft at the top end of the U-shaped mounting frame 401; the upper layer of the coal conveying belt 2 is concave downward and is borne on the oblique bearing roller 404; the two vertical side rods of the U-shaped roller frame 1 are rotatably installed between the positions of the middle lower part; and the lower layer of the coal conveying belt 2 is respectively threaded through the two tensioning rollers 102.

[0045] Preferably, one end position of the bottom of the U-shaped roller frame 1 is welded with a ground-contacting mounting plate.

[0046] Preferably, the ground-contacting mounting plate is fixedly installed with an electric drive assembly 3 at the top end.

[0047] Preferably, the electric drive assembly 3 is driven by a triangular belt and the corresponding side belt conveying roller 101.

[0048] The specific details, implementation steps, functions and mutual relationships of the above-mentioned contents, and the role played in the process of realizing the present application, are described and explained in detail as follows:

[0049] Through the reciprocating screw rod 7, the cleaning motor 5 can drive the U-shaped sliding frame 6 and the square rotating rod 601 to reciprocally slide along the two transversely arranged positioning shafts 403, control the nylon brush 602 to slide back and forth in the width direction of the lower layer of the coal conveying belt 2, and clean the wet coal powder and small coal blocks adhered on the top surface of the lower layer of the coal conveying belt 2 to the two sides of the lower layer of the coal conveying belt 2, which can avoid the long-term adhesion of the above impurities on the top surface of the lower layer of the coal conveying belt 2, prevent the impurities from continuously rubbing against the belt conveying roller 101 and the tensioning roller 102 along with the continuous rotation of the coal conveying belt, cause excessive relative wear of the three, and help to prevent wear and tear of the belt conveying roller 101, the belt conveying roller 101 and the tensioning roller 102.

[0050] When the jacking bolt 6012 is in abutting contact with the corresponding vertical side rod of the U-shaped sliding frame 6, the square rotating rod 601 can be positioned in a vertically downward posture, and the nylon brush 602 can be kept in a cleaning state of facing the lower layer of the coal conveying belt 2 and being in scraping contact with the top surface of the lower layer of the coal conveying belt 2, which can avoid the lack of necessary positioning of the square rotating rod 601, the up-and-down swinging of the nylon brush 602 under the action of the relative friction between the nylon brush 602 and the coal conveying belt 2, and the disengagement of the nylon brush 602 from the lower layer of the coal conveying belt 2, so that the lower layer of the coal conveying belt 2 cannot be continuously and effectively cleaned.

[0051] The square rotating rod 601 adopts a rotating installation design form, after the top pressing bolt 6012 is loosened, the square rotating rod 601 can be swung upward to a horizontal state, and the nylon brush 602 is driven to a horizontal state, when the nylon brush 602 is swung to the horizontal state, is transferred to the open space on one side of the square rotating rod 601, can be conveniently disassembled and replaced, in this way, the nylon brush 602 can be avoided to be limited in the cramped space between the square rotating rod 601 and the lower layer of the coal conveying belt 2, and the disassembly and replacement are not inconvenient.

[0052] The working principle of the embodiment is as follows: before use, the two U-shaped roller frames 1 and the row of frame-shaped supports 4 are fixed to the ground through expansion bolts, in use, the electric drive assembly 3 is started, and the pulverized coal and the coal blocks are loaded on the tail end part of the upper layer of the coal conveying belt 2, through the V-belt, the electric drive assembly 3 can rotatably drive the belt conveying roller 101 corresponding to the position, when the belt conveying roller 101 is driven to rotate, the coal conveying belt 2 can be frictionally driven to rotate, when the coal conveying belt 2 rotates, the pulverized coal and the coal blocks loaded on the tail end part can be conveyed to the front end, and the pulverized coal and the coal blocks are conveyed to the specified discharging position to be discharged.

[0053] In this paper, the following points need attention:

[0054] 1. The embodiment of the utility model only relates to the structure involved in the embodiment of the utility model, and other structures can refer to the general design.

[0055] 2. In the case of no conflict, the embodiments of the utility model and the features in the embodiments can be combined to obtain new embodiments.

[0056] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A coal plant coal conveying belt protection device, comprising two symmetrical U-shaped roller frames (1), a belt conveying roller (101) is rotatably installed between the top ends of the two vertical support rods of the U-shaped roller frame (1), and a coal conveying belt (2) is tightly installed between the two belt conveying rollers (101). characterized in that A row of frame-shaped supports (4) are arranged in the space between the two U-shaped roller frames (1), the lower layer of the coal conveying belt (2) is arranged horizontally and tightly, and sequentially passes through a row of frame-shaped supports (4); two longitudinal support plates (402) are symmetrically welded between two adjacent frame-shaped supports (4) near one of the U-shaped roller frames (1), a transverse positioning shaft (403) is welded in the top space of the two frame-shaped supports (4); a U-shaped sliding frame (6) is jointly and slidably installed on the two transverse positioning shafts (403), a square rotating rod (601) is rotatably installed between the bottom ends of the two vertical side rods of the U-shaped sliding frame (6), and a nylon brush (602) is fixedly installed on the bottom side of the square rotating rod (601); when the square rotating rod (601) is positioned in the vertical state, the nylon brush (602) is in wiping contact with the top surface of the lower layer of the coal conveying belt (2); a reciprocating screw rod (7) is rotatably installed between the middle portions of the two longitudinal support plates (402), a cleaning motor (5) is fixedly installed on the outer side of the middle section of one longitudinal support plate (402), and the cleaning motor (5) is drivingly connected with one end of the reciprocating screw rod (7) through a shaft coupling; the reciprocating screw rod (7) penetrates and drives the middle portion of the U-shaped sliding frame (6).

2. A coal conveyor belt protection device for a power plant according to claim 1, characterized in that, A plum-shaped knob (6011) is welded at the first end of the rotating shaft of one end of the square rotating rod (601), and a jacking bolt (6012) is screwed through the outer edge position of the plum-shaped knob (6011).

3. A coal conveyor belt protection device for a power plant according to claim 2, characterized in that, The first end of the jacking bolt (6012) abuts against the vertical side rod of the corresponding side of the U-shaped sliding frame (6).

4. A coal conveyor belt protection device for a power plant according to claim 1, characterized in that, Two obliquely arranged U-shaped mounting frames (401) are symmetrically welded at the top ends of the frame-shaped supports (4), and an oblique bearing roller (404) is rotatably sleeved on the oblique mounting shaft at the top end of the U-shaped mounting frame (401).

5. A coal conveyor belt protection device for a power plant as claimed in claim 4, wherein The upper layer of the coal conveying belt (2) is arranged in a concave manner and is supported on the oblique bearing roller (404).

6. A coal conveyor belt protection device for a power plant as set forth in claim 1, wherein A tensioning roller (102) is rotatably installed between the middle lower positions of the two vertical side rods of the U-shaped roller frame (1).

7. A coal belt protection device for a coal plant as set forth in claim 1, wherein The two end portions of the lower layer of the coal conveying belt (2) respectively pass through the two tensioning rollers (102).

8. A coal belt protection device for a coal plant as set forth in claim 1, wherein, A ground contacting mounting plate is welded at one end position of the bottom of one of the U-shaped roller frames (1).

9. A coal conveyor belt protection device for a power plant as claimed in claim 8, characterized in that, An electric drive assembly (3) is fixedly installed at the top end of the ground contacting mounting plate.

10. A coal conveyor belt protection device for a power plant as set forth in claim 9, wherein The electric drive assembly (3) is drivingly connected with the corresponding belt conveying roller (101) through a triangular belt.

Images